/* ==========================================================================
   PaperSpark — Theme: "Paper meets electricity"
   Responsive Design System for Mobile, Tablet, Laptop, Desktop, and Ultrawide.
   Color Palette:
   - Background (paper): #F7F8FB
   - Text (ink): #14182B
   - Primary accent (electric cobalt): #3457FF
   - CTA / progress (spark coral): #FF5B3D
   - Success state (mint): #1FD1A1
   - Borders (mist): #E4E7F2
   - Surface cards: #FFFFFF
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=Space+Grotesk:wght@500;600;700&display=swap');

:root {
  /* Semantic Design Tokens (Light Theme: "Paper meets electricity") */
  --bg-page: #F7F8FB;
  --bg-paper: #F7F8FB;
  --bg-surface: #FFFFFF;
  --bg-surface-elevated: #FFFFFF;
  --bg-elevated: #FFFFFF;
  --bg-subtle: #F1F4F9;
  --surface-paper: #F8F9FB;
  
  --text-primary: #14182B;
  --text-ink: #14182B;
  --ink-deep: #14182B;
  --text-secondary: #475569;
  --text-muted: #5B627A;
  --text-subtle: #8A92A6;
  
  --border-color: #E4E7F2;
  --border-mist: #E4E7F2;
  --border-subtle: #D2D8E6;
  --divider: #E4E7F2;
  --divider-color: #E4E7F2;
  
  --primary-accent: #3457FF;
  --accent-electric: #3457FF;
  --accent-spark: #3457FF;
  --accent-electric-hover: #2344E0;
  --accent-electric-tint: #EEF2FF;
  
  --cta-accent: #FF5B3D;
  --spark-coral: #FF5B3D;
  --spark-coral-hover: #E84527;
  --spark-coral-tint: #FFF1EE;
  
  --success: #1FD1A1;
  --mint-success: #1FD1A1;
  --mint-success-hover: #16BA8E;
  --mint-success-tint: #E8FAF5;
  
  --warning: #F59E0B;
  --warning-tint: #FEF3C7;
  
  --error: #EF4444;
  --danger-crimson: #EF4444;
  --danger-tint: #FEE2E2;
  
  --workspace-bg: #F8F9FD;
  --toolbar-bg: #ECEEF5;
  --input-bg: #FFFFFF;
  --input-border: #D2D8E6;
  --input-text: #14182B;
  --selection-state: rgba(52, 87, 255, 0.12);
  --selection-state-border: #3457FF;
  --focus-state: 0 0 0 3px rgba(52, 87, 255, 0.22);
  
  --modal-overlay: rgba(20, 24, 43, 0.65);
  --header-bg: rgba(255, 255, 255, 0.92);
  --header-border: #E4E7F2;
  --paper-warm: #F8F9FB;
  
  --font-heading: 'Space Grotesk', system-ui, -apple-system, sans-serif;
  --font-body: 'Inter', system-ui, -apple-system, sans-serif;
  
  --shadow-sm: 0 1px 3px rgba(20, 24, 43, 0.05);
  --shadow-md: 0 4px 16px rgba(20, 24, 43, 0.07);
  --shadow-lg: 0 12px 36px rgba(20, 24, 43, 0.10);
  --shadow-stack: 0 2px 4px rgba(20, 24, 43, 0.04), 0 8px 24px rgba(20, 24, 43, 0.08);
  --shadow-electric: 0 0 0 3px rgba(52, 87, 255, 0.22);
  --shadow-paper-sheet: 0 1px 3px rgba(20, 24, 43, 0.05), 0 6px 20px rgba(20, 24, 43, 0.06);
  --shadow-paper-lift: 0 4px 14px rgba(20, 24, 43, 0.08), 0 20px 48px rgba(20, 24, 43, 0.12);
  --shadow-electric-active: 0 0 0 2px var(--accent-electric), 0 8px 24px rgba(52, 87, 255, 0.20);
  
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-full: 9999px;
  
  --transition-fast: 160ms cubic-bezier(0.2, 0.8, 0.2, 1);
  --transition-smooth: 260ms cubic-bezier(0.16, 1, 0.3, 1);
  --transition-fluid: all 400ms cubic-bezier(0.16, 1, 0.3, 1);

  /* Safe Area Insets for notched phones & gesture bars */
  --safe-top: env(safe-area-inset-top, 0px);
  --safe-bottom: env(safe-area-inset-bottom, 0px);
  --safe-left: env(safe-area-inset-left, 0px);
  --safe-right: env(safe-area-inset-right, 0px);
}

/* Base Styles & Zero Horizontal Overflow Guarantee */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
}

html {
  overflow-x: hidden;
  width: 100%;
  scroll-behavior: smooth;
}

body {
  background-color: var(--bg-paper);
  color: var(--text-ink);
  font-family: var(--font-body);
  font-size: clamp(14px, 1vw + 11px, 15px);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  width: 100%;
  position: relative;
  padding-left: var(--safe-left);
  padding-right: var(--safe-right);
}

/* Skip to Content Accessibility Link */
.skip-link {
  position: absolute;
  top: -120px;
  left: 20px;
  background: var(--accent-electric);
  color: #ffffff;
  padding: 10px 18px;
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 0.92rem;
  z-index: 100000;
  text-decoration: none;
  box-shadow: var(--shadow-electric);
  transition: top var(--transition-fast);
}
.skip-link:focus,
.skip-link:focus-visible {
  top: 14px;
  outline: 3px solid #ffffff;
  outline-offset: 2px;
}

/* Accessibility Focus States */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible {
  outline: 2px solid var(--accent-electric);
  outline-offset: 2px;
  box-shadow: var(--shadow-electric);
}

/* Responsive Fluid Container */
.container {
  width: 100%;
  max-width: min(1480px, 100%);
  margin-left: auto;
  margin-right: auto;
  padding-left: clamp(14px, 3.5vw, 36px);
  padding-right: clamp(14px, 3.5vw, 36px);
}

/* Header & Sticky Top Bar */
.site-header {
  border-bottom: 1px solid var(--border-mist);
  background-color: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  position: sticky;
  top: 0;
  z-index: 50;
  padding-top: var(--safe-top);
  box-shadow: 0 1px 3px rgba(20, 24, 43, 0.03);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: clamp(56px, 7vw, 66px);
  gap: 12px;
}

.header-left-cluster {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--text-ink);
  flex-shrink: 0;
}

.brand-icon {
  width: clamp(32px, 4.5vw, 38px);
  height: clamp(32px, 4.5vw, 38px);
  background: linear-gradient(135deg, var(--accent-electric) 0%, #1A38DB 100%);
  color: #FFFFFF;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 2px 10px rgba(52, 87, 255, 0.35);
  flex-shrink: 0;
}

.brand-icon svg {
  width: clamp(18px, 2.5vw, 22px);
  height: clamp(18px, 2.5vw, 22px);
}

.brand-name {
  font-family: var(--font-heading);
  font-size: clamp(1.18rem, 2.2vw, 1.45rem);
  font-weight: 700;
  letter-spacing: -0.028em;
  white-space: nowrap;
}

.brand-name span {
  color: var(--spark-coral);
}

.brand-studio-badge {
  display: inline-flex;
  align-items: center;
  background: #EEF2FF;
  color: var(--accent-electric);
  border: 1px solid rgba(52, 87, 255, 0.25);
  font-size: 0.68rem;
  font-weight: 700;
  padding: 2px 7px;
  border-radius: var(--radius-full);
  letter-spacing: 0.08em;
  font-family: ui-monospace, 'SF Mono', Menlo, Monaco, Consolas, monospace;
}

.header-center-controls {
  display: flex;
  align-items: center;
}

.header-cmd-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: #FFFFFF;
  border: 1px solid var(--border-mist);
  border-radius: var(--radius-full);
  color: var(--text-muted);
  font-size: 0.82rem;
  font-weight: 500;
  cursor: pointer;
  box-shadow: 0 1px 3px rgba(20, 24, 43, 0.04);
  transition: all var(--transition-fast);
}

.header-cmd-pill:hover {
  border-color: var(--accent-electric);
  color: var(--accent-electric);
  transform: translateY(-1px);
  box-shadow: 0 2px 8px rgba(52, 87, 255, 0.15);
}

.header-cmd-pill kbd {
  background: #F1F4F9;
  border: 1px solid #D2D8E6;
  border-radius: 4px;
  padding: 1px 6px;
  font-size: 0.72rem;
  font-family: ui-monospace, 'SF Mono', Menlo, Monaco, Consolas, monospace;
  color: var(--text-secondary);
}

@media (max-width: 768px) {
  .header-center-controls {
    display: none;
  }
}

.header-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}

.privacy-badge {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 5px 12px;
  background-color: var(--mint-success-tint);
  color: #0E7356;
  border: 1px solid rgba(31, 209, 161, 0.35);
  border-radius: var(--radius-full);
  font-size: clamp(0.72rem, 1.2vw, 0.82rem);
  font-weight: 600;
  white-space: nowrap;
  flex-shrink: 0;
}

.privacy-pulse-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background-color: #1FD1A1;
  box-shadow: 0 0 6px rgba(31, 209, 161, 0.8);
  flex-shrink: 0;
  animation: pulse-mint 2s infinite ease-in-out;
}

@keyframes pulse-mint {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.55; transform: scale(0.85); }
}

.privacy-text-compact {
  display: none;
}

@media (max-width: 520px) {
  .privacy-text-full {
    display: none;
  }
  .privacy-text-compact {
    display: inline;
  }
}

@media (max-width: 440px) {
  .privacy-text-compact {
    display: none;
  }
  .privacy-badge {
    padding: 5px 7px;
  }
}

@media (max-width: 330px) {
  .privacy-badge {
    padding: 4px 6px;
  }
}

.privacy-badge svg {
  width: 14px;
  height: 14px;
  color: #129E78;
  flex-shrink: 0;
}

.header-tagline {
  color: var(--text-muted);
  font-size: 0.82rem;
  display: none;
}

@media (min-width: 840px) {
  .header-tagline {
    display: inline-block;
  }
}

@media (max-width: 440px) {
  .header-inner {
    gap: 6px;
  }
  .header-meta {
    gap: 6px;
  }
}

@media (max-width: 340px) {
  .brand-name {
    font-size: 1.05rem;
  }
}

/* Direct Tool Navigation Toolbar & Floating macOS-Style Pill Dock */
.tool-nav-container {
  padding: clamp(10px, 1.8vw, 16px) 0 clamp(8px, 1.4vw, 12px);
  background-color: transparent;
  width: 100%;
  max-width: 100%;
  overflow: hidden;
  position: relative;
  z-index: 10;
}

.tool-nav-rail-container {
  width: 100%;
  max-width: min(1480px, 100%);
}

.tool-rail-wrapper {
  position: relative;
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  max-width: 100%;
}

.rail-nav-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  min-width: 34px;
  min-height: 34px;
  border-radius: var(--radius-full);
  background: #FFFFFF;
  border: 1px solid rgba(20, 24, 43, 0.1);
  color: var(--text-ink);
  cursor: pointer;
  flex-shrink: 0;
  padding: 0;
  box-shadow: 0 1px 3px rgba(20, 24, 43, 0.05);
  transition: all var(--transition-fast);
  z-index: 3;
}

.rail-nav-btn:hover:not(:disabled) {
  background: #FFFFFF;
  border-color: var(--accent-electric);
  color: var(--accent-electric);
  box-shadow: 0 2px 8px rgba(52, 87, 255, 0.16);
  transform: translateY(-1px);
}

.rail-nav-btn:active:not(:disabled) {
  transform: translateY(0);
}

.rail-nav-btn:disabled,
.rail-nav-btn.is-disabled {
  opacity: 0.28;
  cursor: default;
  pointer-events: none;
  box-shadow: none;
  transform: none;
}

.rail-nav-btn.is-hidden {
  display: none !important;
}

.tool-nav-scroll-window {
  position: relative;
  flex: 1 1 0%;
  min-width: 0;
  max-width: 100%;
  overflow: hidden;
  border-radius: var(--radius-full);
}

/* Edge Fade Gradient Affordance Masks */
.tool-nav-scroll-window::before,
.tool-nav-scroll-window::after {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  width: 28px;
  pointer-events: none;
  z-index: 2;
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.tool-nav-scroll-window::before {
  left: 0;
  background: linear-gradient(to right, var(--bg-paper) 15%, rgba(247, 248, 251, 0));
}

.tool-nav-scroll-window::after {
  right: 0;
  background: linear-gradient(to left, var(--bg-paper) 15%, rgba(247, 248, 251, 0));
}

.tool-nav-scroll-window.can-scroll-left::before {
  opacity: 1;
}

.tool-nav-scroll-window.can-scroll-right::after {
  opacity: 1;
}

/* Sleek Floating Pill-Dock (macOS Style) */
.tool-nav {
  position: relative;
  display: flex;
  align-items: center;
  gap: 4px;
  overflow-x: auto;
  overflow-y: hidden;
  -webkit-overflow-scrolling: touch;
  padding: 6px 8px;
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-radius: var(--radius-full);
  border: 1px solid rgba(20, 24, 43, 0.08);
  box-shadow: 0 8px 32px -4px rgba(20, 24, 43, 0.08), 0 2px 6px rgba(20, 24, 43, 0.03);
  scrollbar-width: none;
  scroll-padding: 8px;
  width: 100%;
  max-width: 100%;
  user-select: none;
  -webkit-user-select: none;
  cursor: grab;
  transition: var(--transition-fluid);
}

.tool-nav.is-dragging {
  cursor: grabbing !important;
  user-select: none !important;
  scroll-behavior: auto !important;
}

.tool-nav::-webkit-scrollbar {
  display: none;
}

.tool-pill {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: clamp(7px, 1.3vw, 9px) clamp(13px, 1.8vw, 17px);
  min-height: 40px;
  border-radius: var(--radius-full);
  border: 1px solid transparent;
  background: transparent;
  color: var(--text-secondary);
  font-family: var(--font-body);
  font-size: clamp(0.83rem, 1.15vw, 0.89rem);
  font-weight: 500;
  cursor: pointer;
  transition: color 160ms ease, background-color 160ms ease, border-color 160ms ease, box-shadow 160ms ease, transform 400ms cubic-bezier(0.16, 1, 0.3, 1);
  white-space: nowrap;
  transform-origin: center center;
}

.tool-pill svg {
  width: 15px;
  height: 15px;
  opacity: 0.72;
  flex-shrink: 0;
  transition: opacity var(--transition-fast);
}

.tool-pill:hover {
  color: var(--text-ink);
  background-color: rgba(20, 24, 43, 0.04);
  transform: scale(1.05);
}

.tool-pill.active {
  background-color: var(--accent-electric);
  color: #FFFFFF;
  font-weight: 500;
  border-color: var(--accent-electric);
  box-shadow: 0 2px 10px rgba(52, 87, 255, 0.32), inset 0 1px 0 rgba(255, 255, 255, 0.22);
}

.tool-pill.active:hover {
  transform: scale(1.05);
}

.tool-pill.active svg {
  opacity: 1;
}

@media (max-width: 640px) {
  .rail-nav-btn {
    display: none !important;
  }
}

/* Main Workbench */
.workbench {
  padding-bottom: clamp(40px, 6vw, 70px);
  flex: 1;
}

/* ==========================================================================
   Studio Landing Hub & Cinematic Editorial Hero
   ========================================================================== */
.landing-studio-hero {
  padding: clamp(20px, 3.5vw, 44px) 0 clamp(28px, 4.5vw, 56px);
  width: 100%;
}

.landing-hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: clamp(24px, 4vw, 56px);
  align-items: center;
}

@media (max-width: 960px) {
  .landing-hero-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
}

.landing-hero-editorial {
  display: flex;
  flex-direction: column;
}

.hero-brand-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  align-self: flex-start;
  background: #EEF2FF;
  border: 1px solid rgba(52, 87, 255, 0.22);
  color: var(--accent-electric);
  font-family: ui-monospace, 'SF Mono', Menlo, Monaco, Consolas, monospace;
  font-size: clamp(0.7rem, 1vw, 0.78rem);
  font-weight: 700;
  letter-spacing: 0.08em;
  padding: 5px 12px;
  border-radius: var(--radius-full);
  margin-bottom: clamp(12px, 2vw, 18px);
}

.kicker-pulse-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background-color: var(--accent-electric);
  box-shadow: 0 0 8px rgba(52, 87, 255, 0.8);
  animation: pulse-mint 2s infinite ease-in-out;
}

.hero-monumental-headline {
  font-family: var(--font-heading);
  font-size: clamp(2.3rem, 4.8vw, 4.2rem);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.038em;
  color: var(--text-ink);
  margin-bottom: clamp(14px, 2.2vw, 20px);
}

.hero-headline-accent {
  background: linear-gradient(135deg, var(--accent-electric) 0%, #1539E8 55%, var(--spark-coral) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}

.hero-description {
  color: var(--text-muted);
  font-size: clamp(0.96rem, 1.4vw, 1.1rem);
  line-height: 1.6;
  max-width: 560px;
  margin-bottom: clamp(18px, 3vw, 26px);
}

.hero-trust-strip {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: clamp(8px, 1.5vw, 12px);
  margin-bottom: clamp(20px, 3vw, 26px);
}

.trust-strip-item {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 6px 12px;
  background: #FFFFFF;
  border: 1px solid var(--border-mist);
  border-radius: var(--radius-full);
  font-size: clamp(0.78rem, 1.2vw, 0.84rem);
  font-weight: 600;
  color: var(--text-ink);
  box-shadow: 0 1px 3px rgba(20, 24, 43, 0.04);
}

.trust-strip-item svg {
  color: var(--mint-success);
  flex-shrink: 0;
}

.hero-quick-launcher {
  margin-bottom: clamp(18px, 2.8vw, 24px);
}

.quick-launcher-title {
  display: block;
  font-size: 0.74rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-subtle);
  margin-bottom: 8px;
  font-family: ui-monospace, 'SF Mono', Menlo, Monaco, Consolas, monospace;
}

.quick-launcher-chips {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}

.launcher-chip {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  background: #FFFFFF;
  border: 1px solid var(--border-mist);
  border-radius: var(--radius-full);
  padding: 5px 12px;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.launcher-chip:hover {
  border-color: var(--accent-electric);
  color: var(--accent-electric);
  background: #EEF2FF;
  transform: translateY(-1px);
}

/* Tool Context Header (Dynamic Mode HUD) */
.tool-intro {
  margin-top: 8px;
  padding-top: 14px;
  border-top: 1px solid var(--border-mist);
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

.tool-active-kicker {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--accent-electric);
  text-transform: uppercase;
  font-family: ui-monospace, 'SF Mono', Menlo, Monaco, Consolas, monospace;
  margin-bottom: 3px;
}

.tool-intro-info h1,
.tool-intro-info h2 {
  font-family: var(--font-heading);
  font-size: clamp(1.2rem, 2.6vw, 1.55rem);
  font-weight: 700;
  color: var(--text-ink);
  letter-spacing: -0.025em;
  line-height: 1.25;
}

.tool-intro-info p {
  color: var(--text-muted);
  font-size: clamp(0.85rem, 1.3vw, 0.94rem);
  margin-top: 3px;
}

/* Digital Drafting Table & Tactile Paper Dropzone */
.landing-hero-dropzone-wrap {
  position: relative;
  width: 100%;
  max-width: 100%;
  overflow-x: clip;
}

.dropzone-paper-sheets {
  position: absolute;
  inset: -10px 0 -12px 0;
  pointer-events: none;
  z-index: -1;
  transition: var(--transition-fluid);
}

.draft-sheet-layer {
  position: absolute;
  inset: 0;
  border: 1px solid var(--border-mist);
  border-radius: var(--radius-lg);
  transition: var(--transition-fluid);
}

.sheet-layer-3 {
  transform: rotate(-2deg) translateY(10px);
  background: #EEF2FA;
  opacity: 0.85;
  box-shadow: 0 8px 24px rgba(20, 24, 43, 0.05);
}

.sheet-layer-2 {
  transform: rotate(1.5deg) translateY(5px);
  background: #F8F9FD;
  opacity: 0.95;
  box-shadow: 0 12px 32px rgba(20, 24, 43, 0.07);
}

.sheet-layer-1 {
  background: #FFFFFF;
  box-shadow: 0 20px 48px rgba(20, 24, 43, 0.12);
}

.dropzone-card {
  position: relative;
  z-index: 1;
  background-color: #FFFFFF;
  border: 2px dashed #CBD5E1;
  border-radius: var(--radius-lg);
  padding: clamp(36px, 6vw, 62px) clamp(20px, 4vw, 40px);
  text-align: center;
  cursor: pointer;
  transition: var(--transition-fluid);
  box-shadow: 0 20px 48px rgba(20, 24, 43, 0.12);
  width: 100%;
}

.dropzone-card > *:not(.dropzone-paper-sheets) {
  position: relative;
  z-index: 2;
}

.dropzone-card:hover,
.dropzone-card.drag-over,
.dropzone-card.dragover {
  border-color: var(--accent-electric);
  background-color: #FAFCFF;
  box-shadow: 0 28px 64px rgba(20, 24, 43, 0.16), 0 0 0 3px rgba(52, 87, 255, 0.22);
  transform: translateY(-6px) scale(1.01);
}

.dropzone-icon-wrap {
  width: clamp(56px, 9vw, 72px);
  height: clamp(56px, 9vw, 72px);
  margin: 0 auto clamp(14px, 2.5vw, 20px);
  border-radius: var(--radius-md);
  background-color: var(--accent-electric-tint);
  border: 1px solid rgba(52, 87, 255, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-electric);
  box-shadow: 0 2px 8px rgba(52, 87, 255, 0.12);
  transition: transform var(--transition-smooth), box-shadow var(--transition-smooth), background-color var(--transition-smooth);
}

.dropzone-card:hover .dropzone-icon-wrap,
.dropzone-card.dragover .dropzone-icon-wrap {
  transform: scale(1.08) translateY(-2px);
  background-color: #FFFFFF;
  border-color: var(--accent-electric);
  box-shadow: 0 8px 24px rgba(52, 87, 255, 0.22);
}

.dropzone-icon-wrap svg {
  width: clamp(30px, 5vw, 38px);
  height: clamp(30px, 5vw, 38px);
}

.dropzone-title {
  font-family: var(--font-heading);
  font-size: clamp(1.25rem, 3vw, 1.55rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text-ink);
  margin-bottom: 8px;
  line-height: 1.25;
}

.dropzone-desc {
  color: var(--text-muted);
  font-size: clamp(0.85rem, 1.4vw, 0.95rem);
  max-width: 460px;
  margin: 0 auto clamp(14px, 2.5vw, 22px);
  line-height: 1.5;
}

.dropzone-keyboard-cue {
  margin-top: 10px;
  font-size: 0.78rem;
  color: var(--text-subtle);
}

.dropzone-keyboard-cue kbd {
  background: #F1F4F9;
  border: 1px solid #D2D8E6;
  border-radius: 4px;
  padding: 1px 5px;
  font-size: 0.7rem;
  font-family: ui-monospace, 'SF Mono', Menlo, Monaco, Consolas, monospace;
  color: var(--text-secondary);
}

.dropzone-privacy-note {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  margin-top: clamp(14px, 2.5vw, 20px);
  font-size: clamp(0.76rem, 1.2vw, 0.84rem);
  color: var(--text-muted);
  font-weight: 500;
}

.dropzone-privacy-note svg {
  color: var(--mint-success);
  flex-shrink: 0;
}

.dropzone-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  flex-wrap: wrap;
}

.file-input-hidden {
  display: none;
}

/* Studio Document Active Mode */
body.document-active .landing-studio-hero {
  display: none !important;
}

/* Touch-Friendly Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  min-height: 44px;
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-size: clamp(0.88rem, 1.2vw, 0.94rem);
  font-weight: 600;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
  touch-action: manipulation;
  user-select: none;
}

.btn svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-electric) 0%, #284BE0 100%);
  color: #FFFFFF;
  box-shadow: 0 2px 10px rgba(52, 87, 255, 0.32);
}

.btn-primary:hover:not(:disabled) {
  background: linear-gradient(135deg, #4264FF 0%, #2344E0 100%);
  box-shadow: 0 4px 16px rgba(52, 87, 255, 0.42);
  transform: translateY(-1px);
}

.btn-primary:active:not(:disabled) {
  transform: translateY(1px);
}

.btn-spark {
  background: linear-gradient(135deg, var(--spark-coral) 0%, #F54928 100%);
  color: #FFFFFF;
  box-shadow: 0 2px 12px rgba(255, 91, 61, 0.35);
}

.btn-spark:hover:not(:disabled) {
  background: linear-gradient(135deg, #FF694E 0%, #F54928 100%);
  box-shadow: 0 4px 18px rgba(255, 91, 61, 0.45);
  transform: translateY(-1px);
}

.btn-spark:active:not(:disabled) {
  transform: translateY(1px);
  box-shadow: 0 2px 8px rgba(255, 91, 61, 0.3);
}

.btn-secondary {
  background-color: var(--bg-surface);
  color: var(--text-ink);
  border-color: var(--border-mist);
  box-shadow: 0 1px 3px rgba(20, 24, 43, 0.04);
}

.btn-secondary:hover:not(:disabled) {
  background-color: #F8FAFD;
  border-color: var(--border-subtle);
  transform: translateY(-1px);
}

.btn-secondary:active:not(:disabled) {
  transform: translateY(1px);
}

.btn-ghost {
  background: transparent;
  color: var(--text-muted);
}

.btn-ghost:hover:not(:disabled) {
  background-color: rgba(20, 24, 43, 0.05);
  color: var(--text-ink);
}

.btn-sm {
  padding: 6px 14px;
  min-height: 38px;
  font-size: 0.84rem;
  border-radius: var(--radius-sm);
}

.btn-sm svg {
  width: 15px;
  height: 15px;
}

.btn-danger {
  color: var(--danger-crimson);
  border-color: rgba(239, 68, 68, 0.25);
  background-color: #FFF5F5;
}

.btn-danger:hover:not(:disabled) {
  background-color: #FEE2E2;
}

.btn:disabled {
  opacity: 0.42;
  cursor: not-allowed;
  transform: none !important;
  box-shadow: none !important;
}

/* Workbench View Container (Step 2 & 3) */
.workbench-stage {
  display: none;
  background-color: var(--bg-surface);
  border: 1px solid var(--border-mist);
  border-radius: var(--radius-lg);
  padding: clamp(16px, 3.5vw, 28px);
  box-shadow: var(--shadow-paper-sheet);
  margin-top: 14px;
  width: 100%;
}

.workbench-stage.active {
  display: block;
}

.stage-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: clamp(14px, 2vw, 20px);
  border-bottom: 1px solid var(--border-mist);
  margin-bottom: clamp(16px, 2.5vw, 24px);
  flex-wrap: wrap;
  gap: 12px;
}

.stage-title-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  min-width: 0;
}

.stage-title {
  font-family: var(--font-heading);
  font-size: clamp(1.15rem, 2.5vw, 1.35rem);
  font-weight: 700;
  line-height: 1.25;
}

.stage-file-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background-color: var(--accent-electric-tint);
  color: var(--accent-electric);
  font-weight: 600;
  font-size: clamp(0.74rem, 1.2vw, 0.82rem);
  padding: 4px 10px;
  border-radius: var(--radius-full);
  word-break: break-all;
}

/* ==========================================================================
   INTERACTIVE PDF WORKSPACE COMPONENT STYLES
   ========================================================================== */
.workspace-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background-color: #F8F9FD;
  border: 1px solid var(--border-mist);
  border-radius: var(--radius-md);
  padding: clamp(10px, 1.8vw, 14px) clamp(12px, 2vw, 18px);
  margin-bottom: clamp(14px, 2.2vw, 20px);
  flex-wrap: wrap;
  gap: 10px;
}

.workspace-bar-group {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

.btn-undo-redo {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  min-height: 38px;
  background-color: #FFFFFF;
  border: 1px solid var(--border-mist);
  border-radius: var(--radius-sm);
  font-size: 0.84rem;
  font-weight: 500;
  color: var(--text-ink);
  cursor: pointer;
  transition: all var(--transition-fast);
  touch-action: manipulation;
}

.btn-undo-redo:hover:not(:disabled) {
  border-color: var(--accent-electric);
  color: var(--accent-electric);
  background-color: var(--accent-electric-tint);
}

.btn-undo-redo:disabled {
  opacity: 0.38;
  cursor: not-allowed;
}

.kbd-hint {
  font-size: 0.72rem;
  padding: 1px 5px;
  background-color: #ECEEF5;
  border-radius: 3px;
  color: var(--text-muted);
  font-family: monospace;
}

.batch-selection-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: linear-gradient(135deg, #EEF2FF 0%, #E8FAF5 100%);
  border: 1px solid rgba(52, 87, 255, 0.25);
  border-radius: var(--radius-md);
  padding: clamp(8px, 1.5vw, 12px) clamp(12px, 2vw, 18px);
  margin-bottom: clamp(14px, 2vw, 20px);
  flex-wrap: wrap;
  gap: 10px;
}

.selection-info-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: clamp(0.82rem, 1.3vw, 0.88rem);
  font-weight: 600;
  color: var(--accent-electric);
}

/* ==========================================================================
   THE DOCUMENT CANVAS STAGE & HERO PAPER SHEET
   ========================================================================== */
.document-canvas-stage {
  margin-bottom: clamp(20px, 3.2vw, 32px);
  background: #FFFFFF;
  border: 1px solid var(--border-mist);
  border-radius: var(--radius-xl);
  box-shadow: 0 4px 20px rgba(20, 24, 43, 0.05);
  overflow: hidden;
  transition: all var(--transition-smooth);
}

.canvas-stage-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: clamp(10px, 1.8vw, 14px) clamp(14px, 2.4vw, 22px);
  background: #F8FAFD;
  border-bottom: 1px solid var(--border-mist);
  flex-wrap: wrap;
  gap: 12px;
}

.canvas-page-nav {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.canvas-page-counter {
  font-family: var(--font-mono, monospace);
  font-size: clamp(0.78rem, 1.2vw, 0.86rem);
  color: var(--text-ink);
  padding: 4px 10px;
  background: #FFFFFF;
  border: 1px solid var(--border-mist);
  border-radius: var(--radius-sm);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.canvas-blank-tag,
.canvas-orig-tag {
  color: var(--text-muted);
  font-size: 0.74rem;
}

.canvas-quick-tools {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

.canvas-quick-tools .btn {
  font-size: clamp(0.76rem, 1.1vw, 0.82rem);
  padding: 4px 10px;
  min-height: 32px;
}

.hero-canvas-viewport {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: clamp(20px, 3vw, 36px) clamp(16px, 2.5vw, 28px);
  background-color: #F8FAFD;
  background-image: 
    linear-gradient(to right, rgba(203, 213, 225, 0.45) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(203, 213, 225, 0.45) 1px, transparent 1px);
  background-size: 24px 24px;
  min-height: clamp(340px, 46vh, 520px);
}

.hero-paper-sheet {
  position: relative;
  background-color: #FFFFFF;
  border: 1px solid #D8DFEB;
  border-radius: 6px;
  box-shadow: 0 16px 40px -10px rgba(15, 23, 42, 0.14), 0 2px 6px rgba(15, 23, 42, 0.05);
  width: min(380px, 86vw);
  max-height: min(520px, 58vh);
  aspect-ratio: 1 / 1.414;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  transition: box-shadow var(--transition-fast), border-color var(--transition-fast);
}

.hero-paper-sheet.selected {
  border-color: var(--accent-electric);
  box-shadow: 0 0 0 3px rgba(52, 87, 255, 0.35), 0 20px 48px -8px rgba(52, 87, 255, 0.24);
}

.hero-canvas-holder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.hero-canvas-holder canvas,
.hero-canvas-holder img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
}

.hero-loading-spin {
  font-family: var(--font-mono, monospace);
  font-size: 0.82rem;
  color: var(--text-muted);
}

/* Document Deck Section */
.document-deck-section {
  width: 100%;
  margin-bottom: clamp(16px, 2.5vw, 24px);
}

.deck-section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
  flex-wrap: wrap;
  gap: 8px;
}

.deck-title-group {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.deck-spark-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent-electric);
  box-shadow: 0 0 8px var(--accent-electric);
}

.deck-title {
  font-family: var(--font-heading);
  font-size: clamp(0.85rem, 1.4vw, 0.95rem);
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--text-ink);
  text-transform: uppercase;
}

.deck-count-badge {
  font-family: var(--font-mono, monospace);
  font-size: 0.74rem;
  font-weight: 600;
  padding: 2px 8px;
  background: var(--accent-electric-tint);
  color: var(--accent-electric);
  border-radius: var(--radius-full);
}

.deck-instructions {
  font-size: 0.78rem;
  color: var(--text-muted);
}

/* Thumbnails Grid (Intelligently Fluid Across All Screen Sizes) */
.thumbnails-grid {
  display: grid;
  gap: clamp(12px, 2vw, 20px);
  margin-bottom: clamp(16px, 3vw, 28px);
  max-height: clamp(380px, 60vh, 680px);
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  padding: clamp(14px, 2vw, 22px);
  width: 100%;
  background-color: #F8FAFD;
  background-image: 
    linear-gradient(to right, rgba(203, 213, 225, 0.45) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(203, 213, 225, 0.45) 1px, transparent 1px);
  background-size: 24px 24px;
  border: 1px solid var(--border-mist);
  border-radius: var(--radius-lg);
  box-shadow: inset 0 2px 6px rgba(15, 23, 42, 0.03);
}

/* Breakpoint 0: Extra Small Mobile (<= 340px) -> 1 column spacious touch mode */
@media (max-width: 340px) {
  .thumbnails-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }
}

/* Breakpoint 1: Standard Mobile (341px - 480px) -> Exactly 2-columns with clean spacing */
@media (min-width: 341px) and (max-width: 480px) {
  .thumbnails-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
  }
}

@media (max-width: 480px) {
  .thumb-footer {
    flex-direction: column;
    align-items: stretch;
    gap: 6px;
  }
  .thumb-page-label {
    text-align: center;
    font-size: 0.76rem;
  }
  .thumb-actions {
    justify-content: center;
    gap: 4px;
    width: 100%;
  }
  .thumb-btn-icon {
    flex: 1;
    min-width: 0;
    height: 34px;
    font-size: 13px;
  }
  .kbd-hint {
    display: none;
  }
  .workspace-bar {
    padding: 10px;
    gap: 8px;
  }
}

/* Breakpoint 2: Large Mobile / Small Tablet (481px - 768px) -> 3 columns */
@media (min-width: 481px) and (max-width: 768px) {
  .thumbnails-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
  }
}

/* Breakpoint 3: Tablet Landscape / Small Laptop (769px - 1100px) -> 4 columns */
@media (min-width: 769px) and (max-width: 1100px) {
  .thumbnails-grid {
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
  }
}

/* Breakpoint 4: Standard Laptop / Desktop (1101px - 1599px) -> fluid 180px min */
@media (min-width: 1101px) and (max-width: 1599px) {
  .thumbnails-grid {
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 18px;
  }
}

/* Breakpoint 5: Large Monitor & Ultrawide (1600px+) -> spacious 210px min */
@media (min-width: 1600px) {
  .thumbnails-grid {
    grid-template-columns: repeat(auto-fill, minmax(210px, 1fr));
    gap: 20px;
  }
}

/* Thumbnail Card */
.thumbnail-card {
  background-color: #FFFFFF !important;
  border: 1.5px solid #D8DFEB;
  border-radius: var(--radius-md);
  padding: clamp(10px, 1.5vw, 14px);
  display: flex;
  flex-direction: column;
  align-items: center;
  position: relative;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast), transform var(--transition-smooth);
  box-shadow: 0 4px 12px rgba(15, 23, 42, 0.06), 0 1px 3px rgba(15, 23, 42, 0.04);
  cursor: grab;
  user-select: none;
  touch-action: pan-y;
  width: 100%;
}

.thumbnail-card:hover {
  border-color: var(--accent-electric);
  box-shadow: 0 12px 28px rgba(52, 87, 255, 0.12), 0 3px 8px rgba(15, 23, 42, 0.06);
  transform: translateY(-4px);
}

.thumbnail-card.selected {
  border-color: var(--accent-electric) !important;
  background-color: #FFFFFF !important;
  box-shadow: 0 0 0 2.5px var(--accent-electric), 0 12px 28px rgba(52, 87, 255, 0.22) !important;
}

.thumbnail-card.deleted {
  opacity: 0.35;
  filter: grayscale(1);
  text-decoration: line-through;
  pointer-events: none;
}

.thumbnail-card.dragging {
  opacity: 0.25;
  border-style: dashed;
}

.thumbnail-card.drag-target {
  border-color: var(--spark-coral) !important;
  box-shadow: 0 0 0 3px var(--spark-coral) !important;
  transform: scale(1.02);
}

/* Touch drag ghost element */
.touch-drag-ghost {
  position: fixed !important;
  z-index: 99999 !important;
  pointer-events: none !important;
  opacity: 0.92 !important;
  border-color: var(--accent-electric) !important;
  box-shadow: 0 16px 36px rgba(20, 24, 43, 0.3) !important;
  transform: scale(1.05) rotate(1.5deg) !important;
  margin: 0 !important;
  box-sizing: border-box !important;
}

.card-drag-handle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: clamp(24px, 4vw, 28px);
  height: clamp(24px, 4vw, 28px);
  color: var(--text-subtle);
  cursor: grab;
  border-radius: 4px;
  background-color: rgba(255, 255, 255, 0.92);
  border: 1px solid var(--border-mist);
  touch-action: none;
  transition: all var(--transition-fast);
  padding: 0;
}

.card-drag-handle:hover,
.card-drag-handle:active {
  color: var(--accent-electric);
  border-color: var(--accent-electric);
  background-color: #FFFFFF;
}

/* Card Top Controls */
.card-top-controls {
  position: absolute;
  top: 6px;
  left: 6px;
  right: 6px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  z-index: 5;
  pointer-events: none;
}

.card-top-controls > * {
  pointer-events: auto;
}

.card-select-checkbox {
  width: clamp(18px, 3.5vw, 22px);
  height: clamp(18px, 3.5vw, 22px);
  cursor: pointer;
  accent-color: var(--accent-electric);
}

.card-quick-actions {
  display: flex;
  align-items: center;
  gap: 3px;
}

.thumb-btn-mini {
  width: clamp(28px, 4.5vw, 34px);
  height: clamp(28px, 4.5vw, 34px);
  border-radius: 4px;
  background-color: rgba(255, 255, 255, 0.94);
  border: 1px solid var(--border-mist);
  color: var(--text-ink);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
  transition: all var(--transition-fast);
  padding: 0;
  font-size: clamp(11px, 2vw, 13px);
  touch-action: manipulation;
}

.thumb-btn-mini:hover {
  background-color: #FFFFFF;
  color: var(--accent-electric);
  border-color: var(--accent-electric);
  transform: scale(1.06);
}

.thumb-canvas-wrap {
  width: 100%;
  aspect-ratio: 1 / 1.35;
  background-color: #FFFFFF;
  border: 1px solid #E2E8F0;
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  position: relative;
  margin-top: 24px;
  margin-bottom: 8px;
  box-shadow: inset 0 0 0 1px rgba(0, 0, 0, 0.02);
}

.thumb-canvas-wrap canvas,
.thumb-canvas-wrap img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  transition: transform var(--transition-smooth);
}

.thumb-footer {
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 6px;
  min-width: 0;
  margin-top: 4px;
}

.thumb-page-label {
  font-family: var(--font-mono, 'JetBrains Mono', 'Fira Code', monospace);
  font-size: clamp(0.74rem, 1.2vw, 0.8rem);
  font-weight: 600;
  letter-spacing: 0.03em;
  color: var(--text-ink);
  text-align: center;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  min-width: 0;
}

.thumb-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 3px;
  width: 100%;
  flex-wrap: wrap;
  padding: 4px 0 2px;
}

.thumb-btn-icon {
  flex: 0 0 26px;
  width: 26px;
  height: 26px;
  padding: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 4px;
  border: 1px solid var(--border-mist);
  background-color: #FFFFFF;
  color: var(--text-muted);
  cursor: pointer;
  transition: all var(--transition-fast);
  font-size: 11px;
  touch-action: manipulation;
}

.thumb-btn-icon:hover {
  color: var(--accent-electric);
  border-color: var(--accent-electric);
  background-color: var(--accent-electric-tint);
}

.thumb-btn-icon.delete:hover {
  color: var(--danger-crimson);
  border-color: var(--danger-crimson);
  background-color: #FEE2E2;
}

.thumb-btn-icon svg {
  width: 14px;
  height: 14px;
}

.rotation-badge {
  position: absolute;
  top: 6px;
  right: 6px;
  background-color: rgba(20, 24, 43, 0.8);
  color: #FFFFFF;
  font-size: 0.72rem;
  font-weight: 600;
  padding: 2px 6px;
  border-radius: var(--radius-full);
}

/* Touch Device Target Enlargement (@media pointer: coarse) */
@media (pointer: coarse) {
  .thumb-btn-mini {
    width: 36px;
    height: 36px;
    font-size: 14px;
  }
  .thumb-btn-icon {
    width: 36px;
    height: 36px;
    font-size: 14px;
  }
  .card-select-checkbox {
    width: 22px;
    height: 22px;
  }
}

/* Paper Stacks & File List (Merge Tool) */
.paper-stack-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 24px;
  width: 100%;
}

.paper-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background-color: #FFFFFF;
  border: 1px solid var(--border-mist);
  border-radius: var(--radius-md);
  padding: clamp(10px, 2vw, 14px) clamp(12px, 2.5vw, 18px);
  transition: all var(--transition-fast);
  box-shadow: var(--shadow-sm);
  cursor: grab;
  position: relative;
  gap: 10px;
  touch-action: pan-y;
}

.paper-item.dragging {
  opacity: 0.3;
  border-style: dashed;
}

.paper-item.dragover {
  border-color: var(--spark-coral) !important;
  box-shadow: 0 0 0 2px var(--spark-coral) !important;
  transform: scale(1.01);
}

.paper-item-touch-ghost {
  position: fixed !important;
  z-index: 99999 !important;
  pointer-events: none !important;
  opacity: 0.94 !important;
  box-shadow: 0 16px 36px rgba(20, 24, 43, 0.28) !important;
  border-color: var(--accent-electric) !important;
  transform: scale(1.02);
  margin: 0 !important;
  box-sizing: border-box !important;
}

.paper-item-left {
  display: flex;
  align-items: center;
  gap: clamp(8px, 1.8vw, 14px);
  min-width: 0;
  flex: 1;
}

.drag-handle {
  color: var(--text-subtle);
  cursor: grab;
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.drag-handle svg {
  width: 18px;
  height: 18px;
}

.paper-sheet-icon {
  width: 32px;
  height: 40px;
  background-color: #FFFFFF;
  border: 1.5px solid var(--border-subtle);
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-electric);
  box-shadow: 2px 2px 0 var(--border-mist);
  position: relative;
  flex-shrink: 0;
}

.paper-item-details {
  min-width: 0;
  flex: 1;
}

.paper-item-name {
  font-weight: 600;
  color: var(--text-ink);
  font-size: clamp(0.85rem, 1.3vw, 0.94rem);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: clamp(140px, 45vw, 540px);
}

.paper-item-meta {
  font-size: 0.78rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 2px;
}

.paper-item-actions {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-shrink: 0;
}

/* Form Controls & Tool Options */
.tool-options-panel {
  background-color: #F8F9FD;
  border: 1px solid var(--border-mist);
  border-radius: var(--radius-md);
  padding: clamp(14px, 2.5vw, 20px);
  margin-bottom: 20px;
  width: 100%;
}

.option-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 16px;
}

.option-group:last-child {
  margin-bottom: 0;
}

.option-label {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-ink);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 4px;
}

.option-help {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-weight: normal;
}

.radio-pill-group {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.radio-pill-label {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 8px 16px;
  min-height: 40px;
  background-color: #FFFFFF;
  border: 1.5px solid var(--border-mist);
  border-radius: var(--radius-full);
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text-ink);
  cursor: pointer;
  transition: all var(--transition-fast);
  touch-action: manipulation;
}

.radio-pill-label:hover {
  border-color: var(--accent-electric);
}

.radio-pill-label.active,
.radio-pill-label:has(input:checked) {
  border-color: var(--accent-electric);
  background-color: var(--accent-electric-tint);
  color: var(--accent-electric);
  font-weight: 600;
}

.radio-pill-label span {
  background: transparent !important;
  color: inherit;
  display: inline-block;
}

.radio-pill-label input {
  display: none;
}

.text-input {
  width: 100%;
  padding: 10px 14px;
  min-height: 44px;
  border: 1.5px solid var(--border-mist);
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-size: 0.92rem;
  background-color: #FFFFFF;
  color: var(--text-ink);
  transition: border-color var(--transition-fast);
}

.text-input:focus {
  border-color: var(--accent-electric);
  outline: none;
}

.compress-notice-box {
  background: #EFF6FF;
  border: 1px solid #BFDBFE;
  border-radius: var(--radius-md);
  padding: 14px 18px;
  margin-bottom: 24px;
  font-size: 0.88rem;
  color: #1E40AF;
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.rotate-controls-bar {
  background: #F8F9FD;
  border: 1px solid var(--border-mist);
  border-radius: var(--radius-md);
  padding: 14px 18px;
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

/* Compression Stats */
.compression-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 12px;
  margin-bottom: 20px;
  width: 100%;
}

.stat-box {
  background-color: #FFFFFF;
  border: 1px solid var(--border-mist);
  border-radius: var(--radius-md);
  padding: 14px;
  text-align: center;
}

.stat-label {
  font-size: 0.78rem;
  color: var(--text-muted);
  font-weight: 500;
}

.stat-value {
  font-family: var(--font-heading);
  font-size: clamp(1.2rem, 3vw, 1.55rem);
  font-weight: 700;
  color: var(--text-ink);
  margin-top: 4px;
}

/* Action Toolbar (Responsive & Sticky Bottom on Mobile) */
.action-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 18px;
  border-top: 1px solid var(--border-mist);
  flex-wrap: wrap;
  gap: 12px;
  width: 100%;
}

.action-info {
  font-size: clamp(0.82rem, 1.3vw, 0.88rem);
  color: var(--text-muted);
  flex: 1;
  min-width: 180px;
}

.action-buttons {
  display: flex;
  align-items: center;
  gap: 10px;
}

/* Mobile Sticky Action Bar (< 768px) */
@media (max-width: 768px) {
  .action-toolbar {
    position: sticky;
    bottom: 0;
    left: 0;
    right: 0;
    width: auto !important;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-top: 1px solid var(--border-mist);
    padding: 12px clamp(14px, 3.5vw, 24px);
    padding-bottom: max(12px, var(--safe-bottom));
    box-shadow: 0 -4px 20px rgba(20, 24, 43, 0.08);
    z-index: 45;
    flex-direction: column-reverse;
    align-items: stretch;
    margin-left: calc(-1 * clamp(16px, 3.5vw, 28px));
    margin-right: calc(-1 * clamp(16px, 3.5vw, 28px));
    margin-bottom: calc(-1 * clamp(16px, 3.5vw, 28px));
    border-bottom-left-radius: var(--radius-lg);
    border-bottom-right-radius: var(--radius-lg);
  }

  .action-buttons {
    width: 100%;
  }

  .action-buttons .btn {
    width: 100%;
    min-height: 48px;
    font-size: 0.96rem;
  }

  .action-info {
    text-align: center;
    font-size: 0.8rem;
  }
}

/* Loading & Processing Overlay */
.processing-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background-color: rgba(20, 24, 43, 0.65);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 120;
  align-items: center;
  justify-content: center;
  padding: clamp(12px, 3vw, 24px);
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}

.processing-overlay.active {
  display: flex;
}

.processing-card {
  background-color: #FFFFFF;
  border-radius: var(--radius-lg);
  padding: clamp(26px, 5vw, 38px) clamp(20px, 4vw, 32px);
  width: 100%;
  max-width: min(440px, 94vw);
  margin: auto;
  text-align: center;
  box-shadow: 0 20px 60px rgba(20, 24, 43, 0.22);
  border: 1px solid var(--border-mist);
  position: relative;
  overflow: hidden;
  max-height: calc(100dvh - 32px);
}

.processing-paper-stack {
  position: relative;
  width: 68px;
  height: 80px;
  margin: 0 auto clamp(12px, 2.5vw, 18px);
}

.processing-sheet {
  position: absolute;
  inset: 0;
  background: #FFFFFF;
  border: 1.5px solid var(--border-subtle);
  border-radius: 6px;
  box-shadow: 0 2px 6px rgba(20, 24, 43, 0.06);
}

.processing-sheet.sheet-3 {
  transform: rotate(-5deg) translateY(4px);
  background: #F1F4FA;
}

.processing-sheet.sheet-2 {
  transform: rotate(3deg) translateY(2px);
  background: #F8FAFD;
}

.processing-sheet.sheet-1 {
  transform: rotate(0deg);
  overflow: hidden;
  position: relative;
}

.processing-scan-beam {
  position: absolute;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, transparent, #3457FF, #00F0FF, #3457FF, transparent);
  box-shadow: 0 0 8px #00F0FF, 0 0 14px rgba(52, 87, 255, 0.8);
  animation: scan-vertical 1.6s ease-in-out infinite alternate;
}

@keyframes scan-vertical {
  0% { top: 4px; opacity: 0.35; }
  50% { opacity: 1; }
  100% { top: calc(100% - 6px); opacity: 0.35; }
}

.processing-card .processing-icon-zap {
  position: absolute;
  bottom: -6px;
  right: -6px;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--spark-coral) 0%, #FF8566 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #FFFFFF;
  box-shadow: 0 0 14px rgba(255, 91, 61, 0.6);
  z-index: 5;
  animation: pulse-glow 1.6s infinite alternate;
}

.processing-card .processing-icon-zap svg {
  width: 14px;
  height: 14px;
}

@keyframes pulse-glow {
  0% { transform: scale(0.95); box-shadow: 0 0 10px rgba(255, 91, 61, 0.35); }
  100% { transform: scale(1.08); box-shadow: 0 0 20px rgba(255, 91, 61, 0.7); }
}

.processing-title {
  font-family: var(--font-heading);
  font-size: clamp(1.2rem, 2.5vw, 1.35rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text-ink);
  margin-bottom: 6px;
}

.processing-status {
  font-size: clamp(0.84rem, 1.3vw, 0.9rem);
  color: var(--text-muted);
  margin-bottom: 12px;
}

/* 5-Stage Stepper in Processing Overlay */
.processing-stages-strip {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 5px;
  margin: 10px 0 16px;
  flex-wrap: wrap;
}

.proc-stage {
  font-family: var(--font-mono, monospace);
  font-size: 0.7rem;
  font-weight: 600;
  padding: 3px 8px;
  border-radius: var(--radius-full);
  background: #EEF2F7;
  color: var(--text-subtle);
  transition: all var(--transition-fast);
}

.proc-stage.active {
  background: var(--accent-electric-tint);
  color: var(--accent-electric);
  box-shadow: 0 0 0 1px rgba(52, 87, 255, 0.25);
}

.progress-track {
  width: 100%;
  height: 8px;
  background-color: #ECEEF5;
  border-radius: var(--radius-full);
  overflow: hidden;
  position: relative;
}

.progress-bar {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--accent-electric) 0%, var(--spark-coral) 100%);
  border-radius: var(--radius-full);
  transition: width 240ms ease;
  position: relative;
  overflow: hidden;
}

.progress-bar::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.45), transparent);
  animation: progress-shimmer 1.4s infinite;
}

@keyframes progress-shimmer {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(100%); }
}

/* ==========================================================================
   THE CELEBRATION MODAL (Works Perfectly on Mobile Landscape & Short Viewports)
   ========================================================================== */
.celebration-modal {
  display: none;
  position: fixed;
  inset: 0;
  background-color: rgba(20, 24, 43, 0.65);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  z-index: 130;
  align-items: center;
  justify-content: center;
  padding: clamp(12px, 3vw, 24px);
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}

.celebration-modal.active {
  display: flex;
}

.celebration-card {
  background-color: #FFFFFF;
  border-radius: 20px;
  padding: clamp(24px, 5vw, 40px) clamp(18px, 4vw, 36px);
  width: 100%;
  max-width: min(480px, 94vw);
  margin: auto;
  text-align: center;
  box-shadow: 0 20px 60px rgba(20, 24, 43, 0.22);
  position: relative;
  overflow-y: auto;
  max-height: calc(100dvh - 32px);
  animation: card-spring 480ms cubic-bezier(0.175, 0.885, 0.32, 1.275) forwards;
}

@keyframes card-spring {
  0% { opacity: 0; transform: scale(0.84) translateY(20px); }
  100% { opacity: 1; transform: scale(1) translateY(0); }
}

.spark-burst-stage {
  position: relative;
  width: clamp(68px, 12vw, 88px);
  height: clamp(68px, 12vw, 88px);
  margin: 0 auto clamp(14px, 2.5vw, 24px);
}

.spark-ripple {
  position: absolute;
  inset: -12px;
  border-radius: 50%;
  border: 2px solid var(--accent-electric);
  opacity: 0;
  animation: ripple-blast 700ms ease-out 120ms forwards;
}

.spark-ripple-2 {
  position: absolute;
  inset: -24px;
  border-radius: 50%;
  border: 2px solid var(--mint-success);
  opacity: 0;
  animation: ripple-blast 750ms ease-out 220ms forwards;
}

@keyframes ripple-blast {
  0% { transform: scale(0.6); opacity: 0.9; }
  100% { transform: scale(1.4); opacity: 0; }
}

.spark-badge {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--mint-success) 0%, #10B981 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #FFFFFF;
  box-shadow: 0 8px 28px rgba(31, 209, 161, 0.45);
  position: relative;
  z-index: 2;
  animation: badge-stamp 500ms cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
}

@keyframes badge-stamp {
  0% { transform: scale(0) rotate(-45deg); }
  70% { transform: scale(1.15) rotate(5deg); }
  100% { transform: scale(1) rotate(0deg); }
}

.spark-badge svg {
  width: clamp(32px, 6vw, 44px);
  height: clamp(32px, 6vw, 44px);
}

.celebration-badge-kicker {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono, monospace);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--accent-electric);
  margin-bottom: 8px;
}

.celebration-title {
  font-family: var(--font-heading);
  font-size: clamp(1.3rem, 3.2vw, 1.6rem);
  font-weight: 700;
  color: var(--text-ink);
  letter-spacing: -0.01em;
  margin-bottom: 6px;
}

.celebration-subtitle {
  color: var(--text-muted);
  font-size: clamp(0.85rem, 1.3vw, 0.94rem);
  margin-bottom: clamp(16px, 2.5vw, 24px);
}

.celebration-result-box {
  background-color: #F8F9FD;
  border: 1px solid var(--border-mist);
  border-radius: var(--radius-md);
  padding: 12px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: clamp(16px, 2.5vw, 24px);
  text-align: left;
  gap: 10px;
}

.result-file-info {
  min-width: 0;
  flex: 1;
}

.result-filename {
  font-weight: 600;
  color: var(--text-ink);
  font-size: clamp(0.84rem, 1.3vw, 0.92rem);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 240px;
}

.result-filesize-row {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-top: 3px;
  flex-wrap: wrap;
}

.result-filesize-label {
  font-size: 0.76rem;
  color: var(--text-muted);
}

.result-filesize {
  font-size: 0.78rem;
  color: var(--text-muted);
  font-weight: 600;
}

.result-savings-pill {
  font-family: var(--font-mono, monospace);
  font-size: 0.72rem;
  font-weight: 700;
  padding: 2px 6px;
  border-radius: 4px;
  background: var(--mint-success-tint);
  color: #0E7356;
}

.result-verified-tag {
  background: var(--mint-success-tint);
  color: #0E7356;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  font-size: 0.76rem;
  font-weight: 700;
  white-space: nowrap;
}

.celebration-actions {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.celebration-actions .btn {
  width: 100%;
  min-height: 48px;
}

/* Mobile Landscape Height Adaptation (< 520px height) */
@media (max-height: 520px) {
  .spark-burst-stage {
    width: 48px;
    height: 48px;
    margin-bottom: 10px;
  }
  .celebration-card, .processing-card {
    padding: 18px 20px;
  }
  .celebration-subtitle {
    margin-bottom: 12px;
  }
  .celebration-result-box {
    margin-bottom: 12px;
    padding: 8px 12px;
  }
}

/* Toast Notifications */
.toast-container {
  position: fixed;
  bottom: max(16px, var(--safe-bottom));
  right: max(16px, var(--safe-right));
  left: max(16px, var(--safe-left));
  max-width: 380px;
  margin-left: auto;
  z-index: 200;
  display: flex;
  flex-direction: column;
  gap: 8px;
  pointer-events: none;
}

.toast {
  pointer-events: auto;
  background-color: var(--text-ink);
  color: #FFFFFF;
  padding: 11px 16px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  font-size: clamp(0.82rem, 1.3vw, 0.88rem);
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 10px;
  animation: toast-in 240ms cubic-bezier(0.16, 1, 0.3, 1) forwards;
  transition: all var(--transition-fast);
}

.toast.toast-error {
  background-color: #DC2626;
}

.toast.toast-success {
  background-color: #059669;
}

.toast.toast-warning {
  background-color: #D97706;
}

.toast.toast-out {
  opacity: 0;
  transform: translateY(8px);
}

@keyframes toast-in {
  0% { opacity: 0; transform: translateY(12px) scale(0.95); }
  100% { opacity: 1; transform: translateY(0) scale(1); }
}

/* Site Footer */
.site-footer {
  border-top: 1px solid var(--border-mist);
  background-color: var(--bg-surface);
  padding: clamp(20px, 3.5vw, 32px) 0;
  margin-top: auto;
  padding-bottom: max(clamp(20px, 3.5vw, 32px), var(--safe-bottom));
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  color: var(--text-muted);
  font-size: clamp(0.8rem, 1.2vw, 0.86rem);
}

.footer-links {
  display: flex;
  align-items: center;
  gap: 14px;
}

/* ==========================================================================
   PDF EDITOR 2.0 ENHANCEMENT STYLES
   ========================================================================== */

/* Editor Modal Overlays */
.editor-modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(20, 24, 43, 0.75);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 150;
  align-items: center;
  justify-content: center;
  padding: clamp(10px, 3vw, 24px);
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}

.editor-modal-overlay.active {
  display: flex;
}

/* Editor Dialog Cards */
.editor-dialog-card {
  background: #FFFFFF;
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: min(640px, 96vw);
  box-shadow: 0 20px 60px rgba(20, 24, 43, 0.28);
  padding: clamp(16px, 3.5vw, 24px);
  max-height: calc(100dvh - 32px);
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin: auto;
  animation: card-spring 260ms cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.dialog-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border-mist);
  padding-bottom: 12px;
  gap: 10px;
}

.dialog-title-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}

.dialog-icon {
  width: 38px;
  height: 38px;
  border-radius: 8px;
  background: var(--accent-electric-tint);
  color: var(--accent-electric);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.15rem;
  flex-shrink: 0;
}

.dialog-title {
  font-family: var(--font-heading);
  font-size: clamp(1.1rem, 2.5vw, 1.25rem);
  font-weight: 700;
  color: var(--text-ink);
}

.dialog-subtitle {
  font-size: clamp(0.78rem, 1.5vw, 0.84rem);
  color: var(--text-muted);
}

.btn-dialog-close {
  background: transparent;
  border: none;
  font-size: 1.25rem;
  cursor: pointer;
  color: var(--text-muted);
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.btn-dialog-close:hover {
  background: #ECEEF5;
  color: var(--text-ink);
}

.dialog-footer {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 10px;
  padding-top: 14px;
  border-top: 1px solid var(--border-mist);
}

/* Fullscreen Preview Lightbox */
.preview-lightbox-shell {
  width: 100%;
  height: 100%;
  max-width: min(1200px, 98vw);
  max-height: min(92vh, 92dvh);
  background: #14182B;
  border-radius: var(--radius-lg);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.5);
  position: relative;
}

.preview-lightbox-header {
  background: rgba(20, 24, 43, 0.95);
  padding: 10px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  color: #FFFFFF;
  flex-wrap: wrap;
  gap: 8px;
  z-index: 10;
}

.preview-meta-info {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.88rem;
  font-weight: 600;
}

.preview-zoom-badge {
  background: rgba(255, 255, 255, 0.15);
  padding: 2px 8px;
  border-radius: var(--radius-full);
  font-size: 0.78rem;
  color: #FFFFFF;
}

.preview-header-actions {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

.preview-header-actions .btn-secondary {
  background: rgba(255, 255, 255, 0.12);
  color: #FFFFFF;
  border-color: rgba(255, 255, 255, 0.2);
}

.preview-header-actions .btn-secondary:hover {
  background: rgba(255, 255, 255, 0.22);
}

.preview-header-actions .btn-ghost {
  color: rgba(255, 255, 255, 0.8);
}

.preview-lightbox-viewport {
  flex: 1;
  overflow: auto;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  background: #0E1120;
  padding: 20px;
  -webkit-overflow-scrolling: touch;
}

.preview-canvas-container {
  margin: auto;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--transition-fast);
}

.preview-canvas-container canvas {
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.6);
  border-radius: 4px;
  background: #FFFFFF;
  display: block;
  max-width: 100%;
  height: auto;
}

.preview-nav-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(20, 24, 43, 0.85);
  color: #FFFFFF;
  border: 1px solid rgba(255, 255, 255, 0.2);
  font-size: 16px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
  z-index: 10;
}

.preview-nav-btn:hover:not(:disabled) {
  background: var(--accent-electric);
  border-color: var(--accent-electric);
  transform: translateY(-50%) scale(1.08);
}

.preview-nav-btn:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

.preview-nav-btn.prev {
  left: 14px;
}

.preview-nav-btn.next {
  right: 14px;
}

/* Crop Component */
.crop-presets-bar, .crop-scope-bar {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

.crop-bar-label {
  font-size: 0.84rem;
  font-weight: 600;
  color: var(--text-ink);
  margin-right: 4px;
}

.crop-presets-bar .btn.active {
  background: var(--accent-electric);
  color: #FFFFFF;
  border-color: var(--accent-electric);
}

.crop-stage-wrapper {
  width: 100%;
  height: 380px;
  max-height: 45vh;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #1C2033;
  border-radius: var(--radius-md);
  position: relative;
  touch-action: none;
}

.crop-canvas-holder {
  position: relative;
  display: inline-block;
  margin: auto;
  line-height: 0;
  user-select: none;
}

.crop-canvas-holder canvas {
  display: block;
  max-height: 360px;
  max-width: 100%;
  object-fit: contain;
  border-radius: 2px;
}

.crop-box {
  position: absolute;
  border: 2px solid var(--spark-coral);
  box-shadow: 0 0 0 9999px rgba(0, 0, 0, 0.58);
  cursor: move;
  touch-action: none;
  box-sizing: border-box;
}

.crop-grid-lines {
  position: absolute;
  inset: 0;
  background: 
    linear-gradient(to right, rgba(255, 91, 61, 0.25) 1px, transparent 1px) 0 0 / 33.33% 100%,
    linear-gradient(to bottom, rgba(255, 91, 61, 0.25) 1px, transparent 1px) 0 0 / 100% 33.33%;
  pointer-events: none;
}

.crop-handle {
  position: absolute;
  width: 14px;
  height: 14px;
  background: var(--spark-coral);
  border: 2px solid #FFFFFF;
  border-radius: 50%;
  box-sizing: border-box;
  touch-action: none;
  z-index: 5;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.3);
}

.crop-handle.nw { top: -7px; left: -7px; cursor: nwse-resize; }
.crop-handle.n  { top: -7px; left: calc(50% - 7px); cursor: ns-resize; }
.crop-handle.ne { top: -7px; right: -7px; cursor: nesw-resize; }
.crop-handle.e  { top: calc(50% - 7px); right: -7px; cursor: ew-resize; }
.crop-handle.se { bottom: -7px; right: -7px; cursor: nwse-resize; }
.crop-handle.s  { bottom: -7px; left: calc(50% - 7px); cursor: ns-resize; }
.crop-handle.sw { bottom: -7px; left: -7px; cursor: nesw-resize; }
.crop-handle.w  { top: calc(50% - 7px); left: -7px; cursor: ew-resize; }

/* Workspace Text Search Panel */
.workspace-search-panel {
  background: #FFFFFF;
  border: 1.5px solid var(--accent-electric);
  border-radius: var(--radius-md);
  padding: 8px 14px;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  flex-wrap: wrap;
  box-shadow: 0 4px 16px rgba(52, 87, 255, 0.12);
  animation: toast-in 200ms ease;
}

.search-input-wrap {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: 1;
  min-width: 180px;
}

.search-input-wrap svg {
  color: var(--accent-electric);
  flex-shrink: 0;
}

.search-query-input {
  border: none;
  outline: none;
  font-size: 0.9rem;
  width: 100%;
  font-family: var(--font-body);
  background: transparent;
  color: var(--text-ink);
}

.search-clear-btn {
  background: transparent;
  border: none;
  cursor: pointer;
  color: var(--text-muted);
  font-size: 0.9rem;
  padding: 2px 6px;
}

.search-nav-controls {
  display: flex;
  align-items: center;
  gap: 6px;
}

.search-status-badge {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-muted);
  padding: 3px 10px;
  background: #ECEEF5;
  border-radius: var(--radius-full);
  white-space: nowrap;
}

.scanned-notice-box {
  width: 100%;
  background: #FFFBEB;
  border: 1px solid #FDE68A;
  color: #92400E;
  padding: 8px 12px;
  border-radius: 6px;
  font-size: 0.82rem;
  margin-top: 4px;
}

.search-matched-page {
  border-color: var(--spark-coral) !important;
  box-shadow: 0 0 0 3px var(--spark-coral) !important;
  animation: pulse-glow 1s ease 2;
}

/* Contextual Action Bar */
.contextual-action-bar {
  display: none;
  align-items: center;
  justify-content: space-between;
  background: linear-gradient(135deg, #14182B 0%, #1E2542 100%);
  color: #FFFFFF;
  border-radius: var(--radius-md);
  padding: 10px 16px;
  margin-bottom: 16px;
  gap: 10px;
  flex-wrap: wrap;
  box-shadow: 0 8px 24px rgba(20, 24, 43, 0.22);
}

.contextual-action-bar.active {
  display: flex;
}

.contextual-selection-info {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  font-size: 0.88rem;
  color: #60A5FA;
}

.contextual-buttons-group {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

@media (max-width: 768px) {
  .contextual-action-bar.active {
    position: sticky;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 46;
    width: auto !important;
    margin-left: calc(-1 * clamp(16px, 3.5vw, 28px));
    margin-right: calc(-1 * clamp(16px, 3.5vw, 28px));
    margin-bottom: calc(-1 * clamp(16px, 3.5vw, 28px));
    border-radius: 0;
    border-bottom-left-radius: var(--radius-lg);
    border-bottom-right-radius: var(--radius-lg);
    padding: 10px 14px;
    padding-bottom: max(12px, var(--safe-bottom));
    flex-direction: column;
    align-items: stretch;
    gap: 8px;
  }

  .contextual-action-bar.active .contextual-buttons-group {
    display: flex;
    align-items: center;
    gap: 6px;
    overflow-x: auto;
    flex-wrap: nowrap;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    padding-bottom: 2px;
    width: 100%;
  }

  .contextual-action-bar.active .contextual-buttons-group::-webkit-scrollbar {
    display: none;
  }

  .contextual-action-bar.active .contextual-buttons-group .btn {
    flex-shrink: 0;
    white-space: nowrap;
    min-height: 40px;
  }
}

/* Thumbnail Card Context Menu Popover */
.thumb-menu-trigger {
  letter-spacing: -1px;
  font-size: 14px;
}

.thumb-context-menu {
  position: absolute;
  top: 38px;
  right: 6px;
  background: #FFFFFF;
  border: 1px solid var(--border-mist);
  border-radius: var(--radius-md);
  box-shadow: 0 10px 30px rgba(20, 24, 43, 0.18);
  z-index: 70;
  min-width: 180px;
  display: flex;
  flex-direction: column;
  padding: 4px 0;
  animation: toast-in 140ms ease;
}

.thumb-menu-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text-ink);
  border: none;
  background: transparent;
  width: 100%;
  text-align: left;
  cursor: pointer;
  transition: background var(--transition-fast);
}

.thumb-menu-item:hover {
  background: var(--accent-electric-tint);
  color: var(--accent-electric);
}

.thumb-menu-item.danger:hover {
  background: #FEE2E2;
  color: var(--danger-crimson);
}

.thumb-menu-separator {
  height: 1px;
  background-color: var(--border-mist);
  margin: 3px 0;
}

/* ==========================================================================
   PDF WATERMARK EDITOR STYLES
   ========================================================================== */

.watermark-dialog {
  max-width: min(840px, 96vw);
}

.watermark-editor-layout {
  display: grid;
  grid-template-columns: 1fr 1.25fr;
  gap: 20px;
  align-items: start;
}

.watermark-preview-section {
  background: #121626;
  border-radius: var(--radius-md);
  padding: 12px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.watermark-preview-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  gap: 8px;
  padding-bottom: 6px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  color: #FFFFFF;
}

.watermark-page-indicator {
  font-size: 0.82rem;
  font-weight: 600;
  color: #94A3B8;
}

.watermark-stage-wrapper {
  width: 100%;
  height: 310px;
  max-height: 38vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  position: relative;
  background: #0B0E19;
  border-radius: 4px;
}

#watermark-preview-canvas {
  display: block;
  max-height: 290px;
  max-width: 100%;
  object-fit: contain;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.6);
  border-radius: 3px;
  background: #FFFFFF;
}

.watermark-preview-hint {
  font-size: 0.74rem;
  color: #94A3B8;
  text-align: center;
  margin-top: 4px;
  line-height: 1.3;
}

.watermark-controls-panel {
  display: flex;
  flex-direction: column;
  gap: 14px;
  max-height: 520px;
  overflow-y: auto;
  padding-right: 4px;
}

.watermark-two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.watermark-text-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 6px;
}

.text-chip {
  background: #F1F3F9;
  border: 1px solid var(--border-mist);
  color: var(--text-ink);
  font-size: 0.74rem;
  font-weight: 600;
  padding: 3px 8px;
  border-radius: 4px;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.text-chip:hover {
  background: var(--accent-electric-tint);
  color: var(--accent-electric);
  border-color: var(--accent-electric);
}

.label-with-val {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 6px;
}

.slider-val-badge {
  background: #ECEEF5;
  color: var(--accent-electric);
  font-size: 0.78rem;
  font-weight: 700;
  padding: 2px 7px;
  border-radius: var(--radius-full);
}

.slider-input {
  width: 100%;
  accent-color: var(--accent-electric);
  height: 6px;
  border-radius: 3px;
  cursor: pointer;
}

.font-select {
  font-family: inherit;
  font-size: 0.88rem;
  cursor: pointer;
}

.watermark-color-row {
  display: flex;
  align-items: center;
  gap: 8px;
}

#watermark-color-picker {
  width: 32px;
  height: 32px;
  border: 1px solid var(--border-mist);
  border-radius: 6px;
  cursor: pointer;
  padding: 0;
  background: transparent;
  flex-shrink: 0;
}

.watermark-swatches {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

.color-swatch {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  border: 2px solid transparent;
  cursor: pointer;
  transition: transform var(--transition-fast);
  flex-shrink: 0;
  padding: 0;
}

.color-swatch:hover {
  transform: scale(1.15);
}

.color-swatch.active {
  border-color: #FFFFFF;
  outline: 2px solid var(--accent-electric);
  transform: scale(1.1);
}

.watermark-pos-container {
  display: flex;
  gap: 12px;
  align-items: center;
  flex-wrap: wrap;
}

.watermark-grid-3x3 {
  display: grid;
  grid-template-columns: repeat(3, 34px);
  grid-template-rows: repeat(3, 34px);
  gap: 4px;
  background: #ECEEF5;
  padding: 4px;
  border-radius: 6px;
}

.pos-grid-btn {
  border: 1px solid var(--border-mist);
  background: #FFFFFF;
  border-radius: 4px;
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--text-muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
  padding: 0;
}

.pos-grid-btn:hover {
  background: #F1F3F9;
  color: var(--text-ink);
}

.pos-grid-btn.active {
  background: var(--accent-electric);
  color: #FFFFFF;
  border-color: var(--accent-electric);
  box-shadow: 0 0 8px rgba(0, 240, 255, 0.4);
}

.watermark-align-controls {
  display: flex;
  flex-direction: column;
  gap: 8px;
  flex: 1;
  min-width: 140px;
}

.align-subgroup {
  display: flex;
  align-items: center;
  gap: 6px;
  justify-content: space-between;
}

.align-sublabel {
  font-size: 0.76rem;
  font-weight: 600;
  color: var(--text-muted);
  min-width: 65px;
}

.btn-group-pill {
  display: flex;
  gap: 2px;
  background: #ECEEF5;
  padding: 2px;
  border-radius: var(--radius-sm);
}

.btn-group-pill .btn {
  min-height: 28px;
  padding: 2px 8px;
  font-size: 0.74rem;
  border-radius: 4px;
  border: none;
  background: transparent;
  color: var(--text-muted);
}

.btn-group-pill .btn.active {
  background: #FFFFFF;
  color: var(--text-ink);
  font-weight: 600;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.watermark-rotation-presets {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 8px;
}

.rot-chip {
  background: #F1F3F9;
  border: 1px solid var(--border-mist);
  font-size: 0.76rem;
  font-weight: 600;
  color: var(--text-ink);
  padding: 3px 8px;
  border-radius: 4px;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.rot-chip:hover {
  background: var(--accent-electric-tint);
  color: var(--accent-electric);
  border-color: var(--accent-electric);
}

.rot-chip.active {
  background: var(--accent-electric);
  color: #FFFFFF;
  border-color: var(--accent-electric);
}

.thumb-watermark-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
  overflow: hidden;
  z-index: 3;
}

.thumb-watermark-text {
  font-size: 13px;
  font-weight: 700;
  white-space: nowrap;
  letter-spacing: 1px;
  text-transform: uppercase;
  user-select: none;
}

@media (max-width: 768px) {
  .watermark-dialog {
    max-height: calc(100dvh - 16px);
    padding: 14px;
    gap: 12px;
  }

  .watermark-editor-layout {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .watermark-preview-section {
    padding: 8px;
    gap: 6px;
  }

  .watermark-stage-wrapper {
    height: 180px;
    max-height: 25vh;
  }

  #watermark-preview-canvas {
    max-height: 170px;
  }

  .watermark-controls-panel {
    max-height: none;
    overflow-y: visible;
  }

  .watermark-two-col {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .watermark-pos-container {
    flex-direction: column;
    align-items: flex-start;
  }

  .pos-grid-btn {
    min-width: 36px;
    min-height: 36px;
  }
}

/* ==========================================================================
   FEATURE: PROFESSIONAL PDF PAGE NUMBER DESIGNER
   ========================================================================== */

.pagenum-dialog {
  max-width: min(840px, 96vw);
}

.pagenum-editor-layout {
  display: grid;
  grid-template-columns: 1fr 1.25fr;
  gap: 20px;
  align-items: start;
}

.pagenum-preview-section {
  background: #121626;
  border-radius: var(--radius-md);
  padding: 12px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.pagenum-preview-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  gap: 8px;
  padding-bottom: 6px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  color: #FFFFFF;
}

.pagenum-page-indicator {
  font-size: 0.82rem;
  font-weight: 600;
  color: #94A3B8;
}

.pagenum-stage-wrapper {
  width: 100%;
  height: 310px;
  max-height: 38vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  position: relative;
  background: #0B0E19;
  border-radius: 4px;
}

#pagenum-preview-canvas {
  display: block;
  max-height: 290px;
  max-width: 100%;
  object-fit: contain;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.6);
  border-radius: 3px;
  background: #FFFFFF;
}

.pagenum-preview-hint {
  font-size: 0.74rem;
  color: #94A3B8;
  text-align: center;
  margin-top: 4px;
  line-height: 1.3;
}

.pagenum-controls-panel {
  display: flex;
  flex-direction: column;
  gap: 14px;
  max-height: 520px;
  overflow-y: auto;
  padding-right: 4px;
}

.pagenum-two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.pagenum-toggle-group {
  background: #F8F9FD;
  border: 1px solid var(--border-mist);
  border-radius: var(--radius-md);
  padding: 10px 14px;
  margin-bottom: 2px;
}

.pagenum-switch-label {
  display: flex;
  align-items: center;
  gap: 12px;
  cursor: pointer;
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--text-ink);
  user-select: none;
}

.pagenum-switch-label input[type="checkbox"] {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.pagenum-toggle-slider {
  position: relative;
  width: 44px;
  height: 24px;
  background-color: #CBD5E1;
  border-radius: 24px;
  transition: background-color var(--transition-fast);
  flex-shrink: 0;
}

.pagenum-toggle-slider::before {
  content: "";
  position: absolute;
  height: 18px;
  width: 18px;
  left: 3px;
  bottom: 3px;
  background-color: white;
  border-radius: 50%;
  transition: transform var(--transition-fast);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
}

.pagenum-switch-label input:checked + .pagenum-toggle-slider {
  background-color: var(--accent-electric, #00F0FF);
}

.pagenum-switch-label input:checked + .pagenum-toggle-slider::before {
  transform: translateX(20px);
}

.pagenum-formats-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 6px;
}

.format-chip {
  background: #F1F3F9;
  border: 1px solid var(--border-mist);
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-ink);
  padding: 7px 10px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  text-align: center;
  transition: all var(--transition-fast);
}

.format-chip:hover {
  background: var(--accent-electric-tint);
  color: var(--accent-electric);
  border-color: var(--accent-electric);
}

.format-chip.active {
  background: var(--accent-electric, #00F0FF);
  color: #FFFFFF;
  border-color: var(--accent-electric, #00F0FF);
  box-shadow: 0 0 8px rgba(0, 240, 255, 0.35);
}

.pagenum-pos-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 6px;
}

.pagenum-pos-btn {
  min-height: 38px;
  font-size: 0.76rem;
  font-weight: 600;
  padding: 6px 4px;
  border-radius: var(--radius-sm);
}

.thumb-badge-pagenum {
  background: var(--accent-electric, #00F0FF);
  color: #000000;
  font-weight: 700;
}

.thumb-pagenum-overlay {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 3;
  padding: 6px 8px;
  display: flex;
  overflow: hidden;
}

.thumb-pagenum-overlay.thumb-pn-top-left { justify-content: flex-start; align-items: flex-start; }
.thumb-pagenum-overlay.thumb-pn-top-center { justify-content: center; align-items: flex-start; }
.thumb-pagenum-overlay.thumb-pn-top-right { justify-content: flex-end; align-items: flex-start; }
.thumb-pagenum-overlay.thumb-pn-bottom-left { justify-content: flex-start; align-items: flex-end; }
.thumb-pagenum-overlay.thumb-pn-bottom-center { justify-content: center; align-items: flex-end; }
.thumb-pagenum-overlay.thumb-pn-bottom-right { justify-content: flex-end; align-items: flex-end; }

.thumb-pagenum-text {
  font-size: 10px;
  font-weight: 600;
  white-space: nowrap;
  background: rgba(255, 255, 255, 0.90);
  padding: 1px 5px;
  border-radius: 2px;
  line-height: 1.2;
  box-shadow: 0 1px 3px rgba(0,0,0,0.15);
  border: 1px solid rgba(0, 0, 0, 0.1);
  color: #111827;
}

@media (max-width: 768px) {
  .pagenum-dialog {
    max-height: calc(100dvh - 16px);
    padding: 14px;
    gap: 12px;
  }

  .pagenum-editor-layout {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .pagenum-preview-section {
    padding: 8px;
    gap: 6px;
  }

  .pagenum-stage-wrapper {
    height: 180px;
    min-height: 160px;
    max-height: 25vh;
  }

  #pagenum-preview-canvas {
    max-height: 160px;
  }

  .pagenum-controls-panel {
    max-height: none;
    overflow-y: visible;
  }

  .pagenum-two-col {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .pagenum-formats-grid {
    grid-template-columns: 1fr 1fr;
  }

  .pagenum-pos-btn {
    min-height: 42px;
    font-size: 0.74rem;
  }
}

/* ==========================================================================
   FEATURE 10: PROFESSIONAL PDF HEADER & FOOTER EDITOR
   ========================================================================== */

.hf-dialog {
  max-width: 920px;
  width: 95vw;
}

.hf-editor-layout {
  display: grid;
  grid-template-columns: 1fr 1.15fr;
  gap: 20px;
  align-items: start;
}

.hf-preview-section {
  display: flex;
  flex-direction: column;
  gap: 10px;
  background: #0F172A;
  border-radius: var(--radius-md);
  padding: 12px;
  border: 1px solid #334155;
}

.hf-preview-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.hf-page-indicator {
  color: #F8FAFC;
  font-size: 0.82rem;
  font-weight: 600;
}

.hf-stage-wrapper {
  min-height: 280px;
  max-height: 380px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #0B0F19;
  border-radius: var(--radius-sm);
  overflow: hidden;
  padding: 12px;
}

#hf-preview-canvas {
  max-height: 350px;
  max-width: 100%;
  object-fit: contain;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.5);
  background: #FFFFFF;
}

.hf-preview-hint {
  font-size: 0.74rem;
  color: #94A3B8;
  text-align: center;
  line-height: 1.3;
}

.hf-controls-panel {
  display: flex;
  flex-direction: column;
  gap: 12px;
  max-height: 72vh;
  overflow-y: auto;
  padding-right: 4px;
}

.hf-tabs {
  display: flex;
  gap: 4px;
  background: #ECEEF5;
  padding: 4px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-mist);
}

.hf-tab-btn {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  border: none;
  background: transparent;
  color: var(--text-muted);
  font-weight: 600;
  font-size: 0.84rem;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.hf-tab-btn:hover {
  color: var(--text-ink);
  background: rgba(255, 255, 255, 0.5);
}

.hf-tab-btn.active {
  background: #FFFFFF;
  color: var(--text-ink);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
}

.hf-tab-badge {
  font-size: 0.68rem;
  font-weight: 700;
  padding: 1px 5px;
  border-radius: var(--radius-full);
  background: #CBD5E1;
  color: #475569;
}

.hf-tab-badge.active {
  background: #10B981;
  color: #FFFFFF;
}

.hf-tab-panel {
  display: none;
  flex-direction: column;
  gap: 12px;
}

.hf-tab-panel.active {
  display: flex;
}

.hf-toggle-group {
  margin-bottom: 2px;
}

.hf-switch-label {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  user-select: none;
  font-weight: 600;
  font-size: 0.88rem;
  color: var(--text-ink);
}

.hf-switch-label input {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.hf-toggle-slider {
  position: relative;
  display: inline-block;
  width: 44px;
  height: 24px;
  background-color: #CBD5E1;
  border-radius: 24px;
  transition: background-color var(--transition-fast);
  flex-shrink: 0;
}

.hf-toggle-slider::before {
  position: absolute;
  content: "";
  height: 18px;
  width: 18px;
  left: 3px;
  bottom: 3px;
  background-color: white;
  border-radius: 50%;
  transition: transform var(--transition-fast);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
}

.hf-switch-label input:checked + .hf-toggle-slider {
  background-color: var(--accent-electric, #00F0FF);
}

.hf-switch-label input:checked + .hf-toggle-slider::before {
  transform: translateX(20px);
}

.hf-placeholder-chips-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
  margin-top: 6px;
}

.hf-chips-label {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--text-muted);
}

.hf-helper-chip {
  background: #F1F3F9;
  border: 1px solid var(--border-mist);
  color: var(--text-ink);
  font-size: 0.72rem;
  font-weight: 600;
  font-family: monospace;
  padding: 2px 7px;
  border-radius: 4px;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.hf-helper-chip:hover {
  background: var(--accent-electric-tint, rgba(0, 240, 255, 0.1));
  color: var(--accent-electric, #00F0FF);
  border-color: var(--accent-electric, #00F0FF);
}

.hf-align-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 6px;
}

.hf-align-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  min-height: 38px;
  border: 1px solid var(--border-mist);
  background: #FFFFFF;
  border-radius: var(--radius-sm);
  color: var(--text-ink);
  font-size: 0.78rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.hf-align-btn:hover {
  background: var(--accent-electric-tint, rgba(0, 240, 255, 0.1));
  border-color: var(--accent-electric, #00F0FF);
}

.hf-align-btn.active {
  background: var(--accent-electric, #00F0FF);
  color: #000000;
  border-color: var(--accent-electric, #00F0FF);
  box-shadow: 0 0 8px rgba(0, 240, 255, 0.35);
}

.hf-two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.hf-notice-box {
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  background: #FEF2F2;
  border: 1px solid #FCA5A5;
  color: #B91C1C;
  font-size: 0.8rem;
  font-weight: 500;
  line-height: 1.4;
}

.thumb-badge-headerfooter {
  background: #6366F1;
  color: #FFFFFF;
  font-weight: 600;
}

.thumb-hf-overlay {
  position: absolute;
  left: 0;
  right: 0;
  pointer-events: none;
  z-index: 3;
  padding: 4px 8px;
  display: flex;
  overflow: hidden;
}

.thumb-hf-overlay.top {
  top: 0;
}

.thumb-hf-overlay.bottom {
  bottom: 0;
}

.thumb-hf-overlay.align-left { justify-content: flex-start; }
.thumb-hf-overlay.align-center { justify-content: center; }
.thumb-hf-overlay.align-right { justify-content: flex-end; }

.thumb-hf-text {
  font-size: 9px;
  font-weight: 600;
  white-space: nowrap;
  background: rgba(255, 255, 255, 0.90);
  padding: 1px 4px;
  border-radius: 2px;
  line-height: 1.1;
  box-shadow: 0 1px 2px rgba(0,0,0,0.15);
  border: 1px solid rgba(0, 0, 0, 0.1);
  color: #1E293B;
  max-width: 90%;
  overflow: hidden;
  text-overflow: ellipsis;
}

@media (max-width: 768px) {
  .hf-dialog {
    max-height: calc(100dvh - 16px);
    padding: 14px;
    gap: 12px;
  }

  .hf-editor-layout {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .hf-preview-section {
    padding: 8px;
    gap: 6px;
  }

  .hf-stage-wrapper {
    height: 180px;
    min-height: 160px;
    max-height: 25vh;
  }

  #hf-preview-canvas {
    max-height: 160px;
  }

  .hf-controls-panel {
    max-height: none;
    overflow-y: visible;
  }

  .hf-two-col {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .hf-align-btn {
    min-height: 42px;
    font-size: 0.76rem;
  }
}

/* ==========================================================================
   FEATURE 11: PROFESSIONAL PDF METADATA EDITOR
   ========================================================================== */

.meta-dialog {
  max-width: 920px;
  width: 95vw;
  max-height: calc(100dvh - 40px);
  display: flex;
  flex-direction: column;
  background: var(--surface-card, #FFFFFF);
  border-radius: var(--radius-lg, 12px);
  box-shadow: var(--shadow-xl);
  overflow: hidden;
  padding: 20px 24px;
  gap: 16px;
}

.meta-header-badges {
  margin-left: auto;
  margin-right: 12px;
  display: flex;
  align-items: center;
}

.meta-status-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 9999px;
  font-size: 0.78rem;
  font-weight: 600;
  transition: all var(--transition-fast);
}

.meta-status-pill.unchanged {
  background: rgba(100, 116, 139, 0.12);
  color: #64748B;
  border: 1px solid rgba(100, 116, 139, 0.25);
}

.meta-status-pill.changed {
  background: rgba(245, 158, 11, 0.15);
  color: #D97706;
  border: 1px solid rgba(245, 158, 11, 0.35);
}

.meta-status-pill.saved {
  background: rgba(16, 185, 129, 0.15);
  color: #059669;
  border: 1px solid rgba(16, 185, 129, 0.35);
}

.meta-editor-layout {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 20px;
  min-height: 0;
  flex: 1;
  overflow: hidden;
}

/* Left Column: Inspect Section */
.meta-inspect-section {
  display: flex;
  flex-direction: column;
  gap: 12px;
  background: var(--surface-ground, #F8FAFC);
  border: 1px solid var(--border-mist, #E2E8F0);
  border-radius: var(--radius-md, 8px);
  padding: 16px;
  overflow-y: auto;
}

.meta-inspect-header {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.meta-section-heading {
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-ink, #0F172A);
}

.meta-file-name {
  font-size: 0.78rem;
  color: var(--text-muted, #64748B);
  word-break: break-all;
  font-family: monospace;
}

.meta-inspect-card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  background: #FFFFFF;
  border: 1px solid var(--border-mist, #E2E8F0);
  border-radius: var(--radius-sm, 6px);
  padding: 12px;
}

.meta-inspect-row {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding-bottom: 6px;
  border-bottom: 1px dashed var(--border-mist, #E2E8F0);
}

.meta-inspect-row:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.meta-inspect-label {
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--text-muted, #64748B);
  letter-spacing: 0.03em;
}

.meta-inspect-value {
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text-ink, #0F172A);
  word-break: break-word;
  white-space: pre-wrap;
}

.meta-inspect-value.empty-val {
  color: #94A3B8;
  font-style: italic;
}

.meta-dates-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  font-size: 0.72rem;
}

.meta-inspect-sublabel {
  font-weight: 600;
  color: var(--text-muted, #64748B);
  margin-right: 4px;
}

.meta-inspect-subval {
  color: var(--text-ink, #0F172A);
}

.meta-safety-notice {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  padding: 10px 12px;
  background: rgba(0, 240, 255, 0.06);
  border: 1px solid rgba(0, 240, 255, 0.25);
  border-radius: var(--radius-sm, 6px);
  color: #0369A1;
  font-size: 0.76rem;
  line-height: 1.4;
  margin-top: auto;
}

.meta-safety-notice svg {
  flex-shrink: 0;
  margin-top: 1px;
}

/* Right Column: Editable Panel */
.meta-controls-panel {
  display: flex;
  flex-direction: column;
  gap: 12px;
  overflow-y: auto;
  padding-right: 4px;
}

.meta-two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.meta-char-count {
  font-size: 0.72rem;
  color: var(--text-muted, #64748B);
  font-weight: 500;
}

.meta-keywords-preview {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  margin-top: 4px;
}

.meta-keyword-chip {
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  background: var(--surface-ground, #F1F5F9);
  border: 1px solid var(--border-mist, #CBD5E1);
  border-radius: 9999px;
  font-size: 0.72rem;
  color: var(--text-ink, #334155);
  font-weight: 500;
}

/* Inline Confirmation Dialog for Clear All */
.meta-confirm-box {
  background: #FFFBEB;
  border: 1px solid #FCD34D;
  border-radius: var(--radius-md, 8px);
  padding: 12px 14px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  animation: fadeIn 0.15s ease-out;
}

.meta-confirm-content {
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.meta-confirm-icon {
  font-size: 1.2rem;
  flex-shrink: 0;
}

.meta-confirm-text strong {
  font-size: 0.85rem;
  color: #92400E;
  display: block;
  margin-bottom: 2px;
}

.meta-confirm-text p {
  font-size: 0.78rem;
  color: #B45309;
  line-height: 1.35;
  margin: 0;
}

.meta-confirm-actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
}

/* Responsive Rules for Mobile/Tablet */
@media (max-width: 768px) {
  .meta-dialog {
    max-height: calc(100dvh - 16px);
    padding: 14px;
    gap: 12px;
  }

  .meta-editor-layout {
    grid-template-columns: 1fr;
    gap: 14px;
    overflow-y: auto;
  }

  .meta-inspect-section {
    max-height: 200px;
  }

  .meta-two-col {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .meta-header-badges {
    margin-right: 6px;
  }
}

@media (max-width: 480px) {
  .meta-dialog .dialog-footer {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    justify-content: stretch;
  }

  .meta-dialog .dialog-footer button {
    flex: 1 1 calc(50% - 4px);
    font-size: 0.80rem;
    padding: 8px 6px;
    white-space: nowrap;
    text-align: center;
    justify-content: center;
  }

  .meta-dialog #btn-meta-revert {
    order: 1;
    margin-right: 0 !important;
  }

  .meta-dialog #btn-meta-clear-all {
    order: 2;
    margin-right: 0 !important;
  }

  .meta-dialog #btn-meta-cancel {
    order: 3;
  }

  .meta-dialog #btn-meta-save {
    order: 4;
  }
}

/* ==========================================================================
   FEATURE 12: PROFESSIONAL PDF DRAW & ANNOTATION EDITOR
   ========================================================================== */

.annotate-dialog {
  width: 96vw;
  max-width: 1400px;
  height: 94vh;
  max-height: calc(100dvh - 24px);
  display: flex;
  flex-direction: column;
  background: var(--surface-card, #FFFFFF);
  border-radius: var(--radius-lg, 12px);
  box-shadow: var(--shadow-xl);
  overflow: hidden;
  padding: 0;
}

.annotate-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 16px;
  background: var(--surface-ground, #F8FAFC);
  border-bottom: 1px solid var(--border-mist, #E2E8F0);
  gap: 12px;
  flex-wrap: wrap;
}

.annotate-topbar-left {
  display: flex;
  align-items: center;
  gap: 10px;
}

.annotate-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-ink, #0F172A);
  margin: 0;
  line-height: 1.2;
}

.annotate-file-badge {
  font-size: 0.76rem;
  color: var(--text-muted, #64748B);
}

.annotate-topbar-center {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.annotate-page-nav,
.annotate-zoom-controls,
.annotate-history-controls {
  display: flex;
  align-items: center;
  gap: 4px;
  background: var(--surface-card, #FFFFFF);
  padding: 3px 6px;
  border-radius: var(--radius-md, 8px);
  border: 1px solid var(--border-mist, #E2E8F0);
}

.annotate-page-indicator,
.annotate-zoom-badge {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-ink, #0F172A);
  padding: 0 6px;
  min-width: 50px;
  text-align: center;
}

.annotate-topbar-right {
  display: flex;
  align-items: center;
  gap: 8px;
}

.annotate-toolbar {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 16px;
  background: var(--surface-card, #FFFFFF);
  border-bottom: 1px solid var(--border-mist, #E2E8F0);
  flex-wrap: wrap;
  overflow-x: auto;
}

.annotate-tools-group {
  display: flex;
  align-items: center;
  gap: 4px;
}

.annotate-tool-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  border-radius: var(--radius-md, 8px);
  border: 1px solid var(--border-mist, #E2E8F0);
  background: var(--surface-ground, #F8FAFC);
  color: var(--text-body, #334155);
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
  min-height: 36px;
}

.annotate-tool-btn:hover {
  background: #EFF6FF;
  border-color: #3B82F6;
  color: #1D4ED8;
}

.annotate-tool-btn.active {
  background: var(--accent-spark, #FF5B3D);
  border-color: var(--accent-spark, #FF5B3D);
  color: #FFFFFF;
  box-shadow: 0 2px 8px rgba(255, 91, 61, 0.25);
}

.annotate-props-divider {
  width: 1px;
  height: 24px;
  background: var(--border-mist, #E2E8F0);
  margin: 0 4px;
}

.annotate-props-group {
  display: flex;
  align-items: center;
  gap: 6px;
}

.annotate-prop-label {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-muted, #64748B);
}

.annotate-color-row {
  display: flex;
  align-items: center;
  gap: 4px;
}

.annotate-swatches {
  display: flex;
  align-items: center;
  gap: 4px;
}

.annotate-color-dot {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  border: 2px solid #FFFFFF;
  box-shadow: 0 0 0 1px #CBD5E1;
  cursor: pointer;
  padding: 0;
  transition: transform var(--transition-fast);
}

.annotate-color-dot:hover {
  transform: scale(1.18);
}

.annotate-color-dot.active {
  box-shadow: 0 0 0 2.5px var(--accent-spark, #FF5B3D);
  transform: scale(1.15);
}

.annotate-width-pills {
  display: flex;
  align-items: center;
  gap: 2px;
  background: var(--surface-ground, #F8FAFC);
  padding: 2px;
  border-radius: var(--radius-sm, 6px);
  border: 1px solid var(--border-mist, #E2E8F0);
}

.annotate-width-btn {
  padding: 3px 7px;
  border: none;
  background: transparent;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-body, #334155);
  border-radius: 4px;
  cursor: pointer;
}

.annotate-width-btn.active {
  background: var(--text-ink, #0F172A);
  color: #FFFFFF;
}

.annotate-selection-actions {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-left: auto;
  background: #FEF3C7;
  padding: 3px 8px;
  border-radius: var(--radius-sm, 6px);
  border: 1px solid #FCD34D;
}

.annotate-selection-info {
  font-size: 0.76rem;
  font-weight: 600;
  color: #92400E;
}

.annotate-viewport {
  flex: 1;
  overflow: auto;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #0F172A;
  padding: 20px;
  min-height: 0;
  position: relative;
}

.annotate-canvas-stack {
  position: relative;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.4);
  border-radius: 4px;
  background: #FFFFFF;
  overflow: hidden;
  line-height: 0;
  user-select: none;
  -webkit-user-select: none;
}

#annotate-pdf-canvas {
  display: block;
  max-width: none;
}

#annotate-draw-canvas {
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  touch-action: none;
  cursor: crosshair;
}

#annotate-selection-outline {
  position: absolute;
  border: 2px dashed #00F0FF;
  pointer-events: none;
  box-shadow: 0 0 0 1px rgba(0, 240, 255, 0.3);
  border-radius: 2px;
}

.ann-handle {
  position: absolute;
  width: 10px;
  height: 10px;
  background: #00F0FF;
  border: 1.5px solid #FFFFFF;
  border-radius: 50%;
  box-shadow: 0 0 6px rgba(0, 240, 255, 0.8);
  pointer-events: auto;
  z-index: 10;
}

.ann-handle-nw { top: -5px; left: -5px; cursor: nwse-resize; }
.ann-handle-n  { top: -5px; left: calc(50% - 5px); cursor: ns-resize; }
.ann-handle-ne { top: -5px; right: -5px; cursor: nesw-resize; }
.ann-handle-e  { top: calc(50% - 5px); right: -5px; cursor: ew-resize; }
.ann-handle-se { bottom: -5px; right: -5px; cursor: nwse-resize; }
.ann-handle-s  { bottom: -5px; left: calc(50% - 5px); cursor: ns-resize; }
.ann-handle-sw { bottom: -5px; left: -5px; cursor: nesw-resize; }
.ann-handle-w  { top: calc(50% - 5px); left: -5px; cursor: ew-resize; }

.ann-handle-rot-line {
  position: absolute;
  top: -18px;
  left: 50%;
  width: 1.5px;
  height: 18px;
  background: #00F0FF;
  transform: translateX(-50%);
  pointer-events: none;
}

.ann-handle-rot {
  position: absolute;
  top: -28px;
  left: 50%;
  transform: translateX(-50%);
  width: 20px;
  height: 20px;
  background: #FF9E00;
  color: #000000;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: bold;
  cursor: grab;
  pointer-events: auto;
  box-shadow: 0 0 6px rgba(255, 158, 0, 0.8);
  user-select: none;
}

.ann-handle-rot:active {
  cursor: grabbing;
}

/* Smart Alignment Guides */
.ann-smart-guide {
  position: absolute;
  pointer-events: none;
  z-index: 15;
  display: none;
}

.ann-smart-guide-v {
  width: 1px;
  top: 0;
  bottom: 0;
  background: #FF5B3D;
  box-shadow: 0 0 4px rgba(255, 91, 61, 0.8);
}

.ann-smart-guide-h {
  height: 1px;
  left: 0;
  right: 0;
  background: #FF5B3D;
  box-shadow: 0 0 4px rgba(255, 91, 61, 0.8);
}

/* Elements Library Popover */
.annotate-elements-dropdown-wrap {
  position: relative;
  display: inline-block;
}

.annotate-elements-popover {
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  z-index: 50;
  background: #FFFFFF;
  border: 1px solid var(--border-mist, #E2E8F0);
  border-radius: 8px;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
  padding: 10px;
  min-width: 230px;
}

.elements-popover-section {
  margin-bottom: 8px;
}

.elements-popover-section:last-child {
  margin-bottom: 0;
}

.elements-popover-title {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted, #64748B);
  margin-bottom: 6px;
}

.elements-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 6px;
}

.element-chip {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  padding: 6px 4px;
  background: #F8FAFC;
  border: 1px solid #E2E8F0;
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.72rem;
  font-weight: 500;
  color: #1E293B;
  transition: all 0.15s ease;
}

.element-chip:hover {
  background: #EEF2F6;
  border-color: #3457FF;
  color: #3457FF;
  transform: translateY(-1px);
}

/* Floating Canva-Style Text Editor */
#annotate-text-editor-wrap {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(4px);
  padding: 6px 8px;
  border-radius: 6px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.22);
  border: 1.5px dashed #3457FF;
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 140px;
}

#annotate-text-input {
  width: 100%;
  min-height: 36px;
  font-family: inherit;
  font-size: 1rem;
  padding: 4px;
  border: none;
  outline: none;
  background: transparent;
  resize: both;
  line-height: 1.3;
}

.annotate-text-controls {
  display: flex;
  justify-content: flex-end;
  gap: 6px;
}

.thumb-annotate-overlay {
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.thumb-badge-annotate {
  background: #8B5CF6 !important;
  color: #FFFFFF !important;
}

/* Responsive annotations styles */
@media (max-width: 768px) {
  .annotate-dialog {
    width: 100vw;
    height: 100dvh;
    max-height: 100dvh;
    border-radius: 0;
  }

  .annotate-topbar {
    padding: 8px 12px;
    gap: 8px;
  }

  .annotate-topbar-center {
    order: 3;
    width: 100%;
    justify-content: space-between;
  }

  .annotate-toolbar {
    padding: 6px 12px;
    gap: 6px;
    -webkit-overflow-scrolling: touch;
  }

  .annotate-tool-btn {
    padding: 6px 8px;
    font-size: 0.78rem;
    min-height: 44px; /* Touch target minimum */
  }

  .annotate-viewport {
    padding: 8px;
  }
}

@media (max-width: 480px) {
  .annotate-topbar-left .annotate-title {
    font-size: 0.92rem;
  }

  .annotate-tool-btn span {
    display: none;
  }

  .annotate-tool-btn {
    padding: 8px 10px;
  }

  .annotate-props-divider {
    display: none;
  }

  .annotate-props-group {
    font-size: 0.75rem;
  }
}

/* ==========================================================================
   10. PROFESSIONAL PDF SIGNATURE TOOL STYLES
   ========================================================================== */
.signature-dialog {
  max-width: 760px;
  width: 95%;
  background: #111827;
  border: 1px solid rgba(255, 91, 61, 0.3);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.6), 0 0 30px rgba(255, 91, 61, 0.15);
  border-radius: 14px;
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  color: var(--text-ink, #F3F4F6);
  max-height: 90vh;
  overflow-y: auto;
}

.sig-disclaimer-box {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  background: rgba(59, 130, 246, 0.08);
  border: 1px solid rgba(59, 130, 246, 0.25);
  border-radius: 6px;
  font-size: 0.8rem;
  color: #93C5FD;
}

.sig-disclaimer-box svg {
  flex-shrink: 0;
  color: #60A5FA;
}

.sig-target-row {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.88rem;
  color: #E2E8F0;
}

.sig-target-label {
  font-weight: 600;
  white-space: nowrap;
}

.sig-target-select {
  padding: 4px 10px;
  border-radius: 6px;
  background: #1F2937;
  color: #FFFFFF;
  border: 1px solid #374151;
  font-size: 0.88rem;
  max-width: 140px;
}

.sig-target-badge {
  font-size: 0.75rem;
  padding: 2px 8px;
  border-radius: 12px;
  background: rgba(0, 240, 255, 0.12);
  color: #00F0FF;
  border: 1px solid rgba(0, 240, 255, 0.3);
}

.sig-tabs {
  display: flex;
  gap: 8px;
  border-bottom: 1px solid #374151;
  padding-bottom: 2px;
}

.sig-tab {
  padding: 10px 18px;
  font-size: 0.92rem;
  font-weight: 600;
  color: #94A3B8;
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  cursor: pointer;
  border-radius: 6px 6px 0 0;
  transition: all 0.15s ease;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.sig-tab:hover {
  color: #F3F4F6;
  background: rgba(255, 255, 255, 0.04);
}

.sig-tab.active {
  color: #FF5B3D;
  border-bottom-color: #FF5B3D;
  background: rgba(255, 91, 61, 0.08);
}

.sig-tab-body {
  display: flex;
  flex-direction: column;
  min-height: 290px;
}

.sig-panel {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

/* Draw Pad */
.sig-pad-wrapper {
  position: relative;
  background: #FFFFFF;
  border-radius: 8px;
  border: 1.5px solid #CBD5E1;
  overflow: hidden;
  box-shadow: inset 0 2px 6px rgba(0, 0, 0, 0.08);
}

#sig-draw-canvas {
  display: block;
  width: 100%;
  height: 200px;
  cursor: crosshair;
  touch-action: none;
}

.sig-baseline-guide {
  position: absolute;
  bottom: 36px;
  left: 30px;
  right: 30px;
  border-bottom: 1.5px dashed #94A3B8;
  pointer-events: none;
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
}

.sig-baseline-x {
  font-size: 16px;
  font-weight: bold;
  color: #64748B;
  transform: translateY(4px);
}

.sig-baseline-hint {
  font-size: 11px;
  color: #94A3B8;
  text-transform: uppercase;
  letter-spacing: 0.6px;
}

/* Controls bar */
.sig-controls-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
  justify-content: space-between;
  background: #1F2937;
  padding: 8px 12px;
  border-radius: 8px;
  border: 1px solid #374151;
}

.sig-ctrl-group {
  display: flex;
  align-items: center;
  gap: 8px;
}

.sig-ctrl-label {
  font-size: 0.82rem;
  font-weight: 600;
  color: #94A3B8;
}

.sig-color-dots {
  display: flex;
  align-items: center;
  gap: 6px;
}

.sig-color-dot,
.sig-type-color-dot {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  border: 2px solid #374151;
  cursor: pointer;
  padding: 0;
  transition: transform 0.15s ease, border-color 0.15s ease;
}

.sig-color-dot.active,
.sig-type-color-dot.active {
  border-color: #00F0FF;
  transform: scale(1.15);
  box-shadow: 0 0 6px rgba(0, 240, 255, 0.6);
}

.sig-custom-color-input {
  width: 22px;
  height: 22px;
  padding: 0;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  background: none;
}

.sig-width-pills {
  display: flex;
  gap: 4px;
}

.sig-width-btn {
  padding: 4px 8px;
  font-size: 0.78rem;
  border-radius: 4px;
  background: #374151;
  border: 1px solid #4B5563;
  color: #E2E8F0;
  cursor: pointer;
  min-height: 32px;
}

.sig-width-btn.active {
  background: #FF5B3D;
  border-color: #FF5B3D;
  color: #FFFFFF;
}

.sig-ctrl-actions {
  display: flex;
  gap: 6px;
}

/* Type Signature Panel */
.sig-type-input-row {
  display: flex;
  align-items: center;
  gap: 10px;
}

#sig-type-input {
  flex: 1;
  font-size: 1.05rem;
  padding: 8px 12px;
  background: #1F2937;
  color: #FFFFFF;
  border: 1px solid #374151;
  border-radius: 6px;
}

.sig-fonts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
  gap: 8px;
}

.sig-font-card {
  background: #1F2937;
  border: 1.5px solid #374151;
  border-radius: 8px;
  padding: 8px 10px;
  text-align: left;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  gap: 4px;
  transition: all 0.15s ease;
}

.sig-font-card:hover {
  border-color: rgba(255, 91, 61, 0.4);
  background: rgba(255, 91, 61, 0.05);
}

.sig-font-card.active {
  border-color: #FF5B3D;
  background: rgba(255, 91, 61, 0.12);
  box-shadow: 0 0 8px rgba(255, 91, 61, 0.3);
}

.sig-font-name {
  font-size: 0.72rem;
  color: #94A3B8;
  font-weight: 600;
}

.sig-font-sample {
  font-size: 1.35rem;
  color: #FFFFFF;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.sig-preview-box {
  background: repeating-conic-gradient(#1E293B 0% 25%, #0F172A 0% 50%) 50% / 16px 16px;
  border-radius: 8px;
  border: 1px solid #374151;
  overflow: hidden;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 10px;
}

#sig-type-canvas,
#sig-upload-canvas {
  max-width: 100%;
  height: auto;
  display: block;
}

/* Upload Signature Panel */
.sig-upload-dropzone {
  border: 2px dashed #4B5563;
  border-radius: 8px;
  padding: 24px;
  text-align: center;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: #94A3B8;
  transition: all 0.2s ease;
  background: #1F2937;
}

.sig-upload-dropzone:hover,
.sig-upload-dropzone.dragover {
  border-color: #FF5B3D;
  background: rgba(255, 91, 61, 0.06);
  color: #FFFFFF;
}

.sig-upload-prompt {
  font-size: 0.95rem;
  color: #E2E8F0;
}

.sig-browse-link {
  color: #FF5B3D;
  text-decoration: underline;
  cursor: pointer;
}

.sig-upload-hint {
  font-size: 0.78rem;
  color: #64748B;
}

.sig-upload-options {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 0.85rem;
  color: #CBD5E1;
}

.sig-checkbox-label {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
}

.sig-checkbox-label input[type="checkbox"] {
  width: 16px;
  height: 16px;
  accent-color: #FF5B3D;
  cursor: pointer;
}

.sig-bg-hint {
  font-size: 0.78rem;
  color: #94A3B8;
}

.sig-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 10px;
  border-top: 1px solid #374151;
}

.sig-footer-actions {
  display: flex;
  gap: 10px;
}

.sig-footer .btn {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

@media (max-width: 768px) {
  .signature-dialog {
    width: 98%;
    padding: 14px;
    max-height: 95vh;
  }

  .sig-tabs {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }

  .sig-tab {
    padding: 10px 14px;
    font-size: 0.85rem;
    white-space: nowrap;
    min-height: 44px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  #sig-draw-canvas {
    height: 160px;
  }

  .sig-controls-bar {
    gap: 8px;
    padding: 6px 8px;
  }

  .sig-fonts-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 480px) {
  .signature-dialog {
    width: 100%;
    border-radius: 0;
    padding: 10px;
  }

  .sig-fonts-grid {
    grid-template-columns: 1fr;
  }

  .sig-footer {
    flex-direction: column-reverse;
    gap: 8px;
  }

  .sig-footer-actions {
    width: 100%;
    justify-content: space-between;
  }

  .sig-footer-actions .btn {
    flex: 1;
    min-height: 44px;
  }

  #btn-sig-clear-all {
    width: 100%;
    min-height: 44px;
  }
}

/* ==========================================================================
   11. BATCH PDF PROCESSING & ZIP DOWNLOAD STYLES
   ========================================================================== */
.batch-stage {
  max-width: 1100px;
  width: 100%;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: 8px 0;
  transition: all 0.2s ease;
}

.batch-stage.drag-active {
  outline: 2px dashed var(--accent-electric, #00F0FF);
  outline-offset: 4px;
  border-radius: 14px;
}

.batch-header-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

.batch-title-group {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.batch-stage-title {
  font-family: var(--font-heading, 'Space Grotesk'), sans-serif;
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text-ink, #F3F4F6);
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0;
}

.batch-stage-title svg {
  color: var(--accent-electric, #00F0FF);
}

.batch-stage-badge {
  font-size: 0.8rem;
  padding: 3px 10px;
  background: rgba(0, 240, 255, 0.12);
  color: #00F0FF;
  border: 1px solid rgba(0, 240, 255, 0.3);
  border-radius: 12px;
  font-weight: 600;
}

.batch-header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

/* Summary metric strip */
.batch-summary-strip {
  display: flex;
  align-items: center;
  gap: 16px;
  background: #14182B;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 12px;
  padding: 12px 20px;
  flex-wrap: wrap;
}

.batch-summary-stat {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.batch-stat-val {
  font-family: var(--font-heading, 'Space Grotesk'), sans-serif;
  font-size: 1.25rem;
  font-weight: 700;
  color: #FFFFFF;
  line-height: 1.2;
}

.batch-stat-label {
  font-size: 0.72rem;
  color: #94A3B8;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-weight: 600;
}

.stat-complete .batch-stat-val {
  color: #10B981;
}

.stat-failed .batch-stat-val {
  color: #EF4444;
}

.stat-cancelled .batch-stat-val {
  color: #F59E0B;
}

.stat-size .batch-stat-val {
  color: #00F0FF;
}

.batch-summary-divider {
  width: 1px;
  height: 28px;
  background: rgba(255, 255, 255, 0.1);
}

/* Controls Card & Operation Pills */
.batch-controls-card {
  background: #14182B;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 12px;
  padding: 16px 20px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.batch-op-header {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.batch-section-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: #E2E8F0;
}

.batch-op-desc {
  font-size: 0.8rem;
  color: #94A3B8;
}

.batch-op-pills {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.batch-op-pill {
  padding: 8px 14px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  color: #94A3B8;
  font-weight: 600;
  font-size: 0.86rem;
  cursor: pointer;
  transition: all 0.15s ease;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.batch-op-pill:hover {
  background: rgba(255, 255, 255, 0.08);
  color: #FFFFFF;
}

.batch-op-pill.active {
  background: rgba(0, 240, 255, 0.12);
  border-color: #00F0FF;
  color: #00F0FF;
  box-shadow: 0 0 12px rgba(0, 240, 255, 0.25);
}

.batch-op-options {
  background: #0F1322;
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 8px;
  padding: 12px 16px;
}

.batch-sub-row {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.batch-sub-label {
  font-size: 0.82rem;
  color: #94A3B8;
  font-weight: 600;
}

.batch-sub-pills {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.batch-sub-pill {
  padding: 6px 12px;
  font-size: 0.8rem;
  border-radius: 6px;
  background: #1F2937;
  border: 1px solid #374151;
  color: #CBD5E1;
  cursor: pointer;
  min-height: 40px;
  display: inline-flex;
  align-items: center;
  transition: all 0.15s ease;
}

.batch-sub-pill:hover {
  background: #374151;
  color: #FFFFFF;
}

.batch-sub-pill.active {
  background: #FF5B3D;
  border-color: #FF5B3D;
  color: #FFFFFF;
  box-shadow: 0 0 8px rgba(255, 91, 61, 0.3);
}

.batch-sub-info {
  font-size: 0.8rem;
  color: #64748B;
  font-style: italic;
}

.batch-text-input {
  padding: 7px 12px;
  border-radius: 6px;
  background: #1F2937;
  color: #FFFFFF;
  border: 1px solid #374151;
  font-size: 0.85rem;
  min-width: 180px;
  max-width: 260px;
}

.batch-wm-colors {
  display: flex;
  gap: 6px;
  align-items: center;
}

.batch-color-dot {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  border: 2px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease;
}

.batch-color-dot:hover {
  transform: scale(1.15);
}

.batch-color-dot.active {
  border-color: #FFFFFF;
  outline: 2px solid #00F0FF;
}

/* Actions Bar */
.batch-actions-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  background: #14182B;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 12px;
  padding: 14px 20px;
}

.batch-actions-left {
  display: flex;
  gap: 10px;
  align-items: center;
}

.batch-actions-right {
  display: flex;
  gap: 10px;
  align-items: center;
}

.btn-processing-active {
  border-color: rgba(0, 240, 255, 0.4);
  color: #00F0FF;
}

.spinner-inline {
  width: 14px;
  height: 14px;
  border: 2px solid rgba(0, 240, 255, 0.3);
  border-top-color: #00F0FF;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  display: inline-block;
}

.spinner-mini {
  width: 10px;
  height: 10px;
  border: 2px solid rgba(0, 240, 255, 0.3);
  border-top-color: #00F0FF;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  display: inline-block;
  margin-right: 2px;
}

/* Queue Section */
.batch-queue-section {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.batch-queue-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 4px;
}

.batch-queue-title {
  font-family: var(--font-heading, 'Space Grotesk'), sans-serif;
  font-size: 1.05rem;
  font-weight: 700;
  color: #E2E8F0;
}

.batch-queue-quick-actions {
  display: flex;
  gap: 14px;
}

.batch-link-btn {
  background: none;
  border: none;
  color: #00F0FF;
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  text-decoration: underline;
  padding: 4px;
  transition: opacity 0.15s ease;
}

.batch-link-btn:hover {
  opacity: 0.8;
}

.batch-empty-queue {
  background: #14182B;
  border: 1px dashed rgba(255, 255, 255, 0.12);
  border-radius: 12px;
  padding: 40px 20px;
  text-align: center;
  color: #64748B;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}

.batch-queue-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

/* Batch Item Card */
.batch-card {
  background: #14182B;
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-radius: 10px;
  padding: 12px 18px;
  display: grid;
  grid-template-columns: minmax(200px, 1.8fr) minmax(180px, 2fr) auto;
  align-items: center;
  gap: 16px;
  transition: all 0.2s ease;
}

.batch-card:hover {
  border-color: rgba(255, 255, 255, 0.16);
  background: #171C33;
}

.batch-card.status-complete {
  border-left: 3px solid #10B981;
}

.batch-card.status-processing {
  border-left: 3px solid #00F0FF;
  box-shadow: 0 0 14px rgba(0, 240, 255, 0.1);
}

.batch-card.status-failed {
  border-left: 3px solid #EF4444;
}

.batch-card.status-cancelled {
  border-left: 3px solid #64748B;
}

.batch-card-left {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.batch-file-icon {
  width: 38px;
  height: 44px;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 0.72rem;
  letter-spacing: 0.5px;
  flex-shrink: 0;
}

.batch-file-icon.icon-pdf {
  background: rgba(255, 91, 61, 0.15);
  color: #FF5B3D;
  border: 1px solid rgba(255, 91, 61, 0.3);
}

.batch-file-icon.icon-img {
  background: rgba(0, 240, 255, 0.15);
  color: #00F0FF;
  border: 1px solid rgba(0, 240, 255, 0.3);
}

.batch-file-meta {
  display: flex;
  flex-direction: column;
  min-width: 0;
  gap: 2px;
}

.batch-file-name {
  font-weight: 600;
  font-size: 0.88rem;
  color: #F3F4F6;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.batch-file-info {
  font-size: 0.76rem;
  color: #94A3B8;
}

.batch-op-tag {
  color: #00F0FF;
  font-weight: 600;
}

/* Card Center / Progress */
.batch-card-center {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 0;
}

.batch-status-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.batch-status-badge {
  font-size: 0.74rem;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 6px;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  white-space: nowrap;
}

.badge-queued {
  background: rgba(148, 163, 184, 0.12);
  color: #94A3B8;
}

.badge-processing {
  background: rgba(0, 240, 255, 0.15);
  color: #00F0FF;
}

.badge-complete {
  background: rgba(16, 185, 129, 0.15);
  color: #10B981;
}

.badge-failed {
  background: rgba(239, 68, 68, 0.15);
  color: #EF4444;
}

.badge-cancelled {
  background: rgba(100, 116, 139, 0.15);
  color: #64748B;
}

.batch-progress-text {
  font-size: 0.74rem;
  color: #94A3B8;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.batch-progress-bar-wrap {
  height: 6px;
  background: #1F2937;
  border-radius: 3px;
  overflow: hidden;
}

.batch-progress-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, #00F0FF, #3457FF);
  border-radius: 3px;
  transition: width 0.25s ease;
}

/* Card Right / Actions */
.batch-card-right {
  display: flex;
  align-items: center;
  gap: 8px;
  justify-content: flex-end;
}

.batch-card-right .btn {
  min-height: 38px;
}

/* Mobile & Tablet Responsiveness for Batch */
@media (max-width: 768px) {
  .batch-card {
    grid-template-columns: 1fr;
    gap: 12px;
    padding: 14px;
  }

  .batch-card-right {
    justify-content: flex-start;
  }

  .batch-card-right .btn {
    width: 100%;
    min-height: 44px;
  }

  .batch-summary-strip {
    gap: 10px;
    padding: 12px 14px;
  }

  .batch-summary-divider {
    display: none;
  }

  .batch-summary-stat {
    flex: 1 1 45%;
  }

  .batch-actions-bar {
    flex-direction: column;
    align-items: stretch;
  }

  .batch-actions-left,
  .batch-actions-right {
    width: 100%;
  }

  .batch-actions-left .btn,
  .batch-actions-right .btn {
    width: 100%;
    min-height: 44px;
  }
}

@media (max-width: 480px) {
  .batch-op-pill {
    flex: 1 1 100%;
  }

  .batch-header-bar {
    flex-direction: column;
    align-items: flex-start;
  }

  .batch-header-actions {
    width: 100%;
  }

  .batch-header-actions .btn {
    flex: 1;
    min-height: 44px;
  }
}

/* ==========================================================================
   PDF INSPECTOR & DOCUMENT INFORMATION PANEL STYLES
   ========================================================================== */

.inspector-dialog {
  max-width: min(940px, 96vw);
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  animation: none !important;
  transform: none !important;
}

.inspect-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.inspect-header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

#inspector-modal button,
#inspector-modal .btn,
#inspector-modal .inspect-filter-btn {
  min-height: 36px !important;
  box-sizing: border-box;
}

#inspector-modal .btn-dialog-close {
  min-width: 36px !important;
  min-height: 36px !important;
  flex-shrink: 0 !important;
}

.inspect-dialog-body {
  overflow-y: auto;
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 20px;
  flex: 1;
}

.inspect-loading-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 48px 24px;
  gap: 14px;
  color: var(--text-muted);
  font-size: 0.95rem;
  font-weight: 500;
}

.inspect-loading-spinner {
  width: 36px;
  height: 36px;
  border: 3px solid var(--border-mist);
  border-top-color: var(--accent-electric);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

.inspect-content-wrap {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

/* Health Banner */
.inspect-health-banner {
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.05) 0%, rgba(14, 115, 86, 0.07) 100%);
  border: 1px solid rgba(14, 115, 86, 0.22);
  border-radius: var(--radius-md);
  padding: 14px 18px;
}

.inspect-health-badge {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 6px;
  flex-wrap: wrap;
}

.health-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #10B981;
  box-shadow: 0 0 8px rgba(16, 185, 129, 0.6);
  display: inline-block;
  flex-shrink: 0;
}

.health-pill {
  background: var(--bg-surface);
  border: 1px solid var(--border-mist);
  padding: 2px 8px;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent-electric);
}

.inspect-health-desc {
  font-size: 0.88rem;
  color: var(--text-ink);
  line-height: 1.5;
  margin: 0;
}

/* Stats Grid */
.inspect-stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(132px, 1fr));
  gap: 12px;
}

.inspect-stat-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-mist);
  border-radius: var(--radius-md);
  padding: 12px 14px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.inspect-stat-card:hover {
  border-color: var(--accent-electric-tint);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.inspect-stat-icon {
  font-size: 1.25rem;
  margin-bottom: 2px;
}

.inspect-stat-data {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.inspect-stat-value {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-ink);
  line-height: 1.2;
  word-break: break-word;
}

.inspect-stat-label {
  font-size: 0.74rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--text-muted);
}

.inspect-stat-sub {
  font-size: 0.75rem;
  color: var(--text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Details 2-Column Grid */
.inspect-details-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 16px;
}

.inspect-panel-box {
  background: var(--bg-surface);
  border: 1px solid var(--border-mist);
  border-radius: var(--radius-md);
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.inspect-panel-title-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
}

.inspect-panel-title {
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--text-ink);
  margin: 0;
  display: flex;
  align-items: center;
  gap: 8px;
}

.inspect-kv-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.inspect-kv-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
  font-size: 0.83rem;
  padding-bottom: 4px;
  border-bottom: 1px solid rgba(0, 0, 0, 0.04);
}

.inspect-key {
  font-weight: 500;
  color: var(--text-muted);
  flex-shrink: 0;
}

.inspect-val {
  font-weight: 600;
  color: var(--text-ink);
  text-align: right;
  word-break: break-all;
}

.inspect-val.text-success {
  color: #0E7356;
}

/* Metadata Grid */
.inspect-meta-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 10px;
}

.inspect-meta-item {
  background: var(--paper-warm);
  border: 1px solid var(--border-mist);
  border-radius: var(--radius-sm);
  padding: 8px 12px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.inspect-meta-item .inspect-val {
  text-align: left;
  font-size: 0.82rem;
  word-break: break-word;
}

/* Page Breakdown */
.inspect-pages-section {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.inspect-pages-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.inspect-panel-sub {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin: 2px 0 0 0;
}

.inspect-filters-bar {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

#inspector-modal .btn {
  min-height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.inspect-filter-btn {
  background: var(--bg-surface);
  border: 1px solid var(--border-mist);
  padding: 6px 14px;
  min-height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-full);
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-muted);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.inspect-filter-btn:hover {
  border-color: var(--accent-electric);
  color: var(--accent-electric);
}

.inspect-filter-btn.active {
  background: var(--accent-electric);
  border-color: var(--accent-electric);
  color: #FFFFFF;
}

.inspect-pages-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-height: 400px;
  overflow-y: auto;
  padding-right: 4px;
}

.inspect-page-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-mist);
  border-radius: var(--radius-md);
  padding: 12px 16px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 14px;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.inspect-page-card:hover {
  border-color: var(--accent-electric-tint);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

.page-card-left {
  display: flex;
  align-items: center;
  gap: 14px;
  flex: 1;
  min-width: 0;
}

.page-num-badge {
  min-width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: var(--accent-electric-tint);
  color: var(--accent-electric);
  font-weight: 700;
  font-size: 0.88rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.page-details-col {
  display: flex;
  flex-direction: column;
  gap: 3px;
  min-width: 0;
}

.page-details-row-1 {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.page-size-pill {
  background: var(--paper-warm);
  border: 1px solid var(--border-mist);
  border-radius: var(--radius-full);
  padding: 2px 8px;
  font-size: 0.74rem;
  font-weight: 600;
  color: var(--text-ink);
}

.page-orient-pill {
  font-size: 0.74rem;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: var(--radius-full);
}

.page-orient-pill.portrait {
  background: rgba(37, 99, 235, 0.08);
  color: var(--accent-electric);
}

.page-orient-pill.landscape {
  background: rgba(245, 158, 11, 0.1);
  color: #D97706;
}

.page-details-row-2 {
  font-size: 0.78rem;
  color: var(--text-muted);
}

.page-details-row-3 {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.76rem;
  color: var(--text-muted);
  margin-top: 2px;
  flex-wrap: wrap;
}

.page-mod-badge {
  background: rgba(14, 115, 86, 0.1);
  color: #0E7356;
  padding: 1px 6px;
  border-radius: 4px;
  font-weight: 600;
  font-size: 0.72rem;
}

.page-card-right {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

/* Footer */
.inspect-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  padding: 14px 20px;
  border-top: 1px solid var(--border-mist);
}

.inspect-footer-privacy {
  font-size: 0.78rem;
  color: var(--text-muted);
}

.inspect-footer-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

@media (max-width: 768px) {
  .inspect-header {
    flex-direction: column;
    align-items: flex-start;
  }
  .inspect-header-actions {
    width: 100%;
    justify-content: space-between;
  }
  .inspect-stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .inspect-details-grid {
    grid-template-columns: 1fr;
  }
  .inspect-page-card {
    flex-direction: column;
    align-items: flex-start;
  }
  .page-card-right {
    width: 100%;
  }
  .page-card-right .btn {
    width: 100%;
    min-height: 42px;
  }
  .inspect-footer {
    flex-direction: column;
    align-items: stretch;
  }
  .inspect-footer-actions {
    width: 100%;
  }
  .inspect-footer-actions .btn {
    flex: 1;
    min-height: 42px;
  }
}

@media (max-width: 480px) {
  .inspect-stats-grid {
    grid-template-columns: 1fr;
  }
  .inspect-meta-grid {
    grid-template-columns: 1fr;
  }
}


/* PDF Canvases Retain True White Paper */
.thumb-canvas-wrap canvas,
.preview-canvas-container canvas,
.crop-canvas-holder canvas,
#preview-canvas,
#crop-preview-canvas,
#watermark-preview-canvas,
#pagenum-preview-canvas,
#hf-preview-canvas,
#annotate-pdf-canvas,
.page-thumbnail canvas,
.meta-thumb-holder canvas,
.pdf-page-canvas {
  background-color: #FFFFFF !important;
  color: initial;
}

/* ==========================================================================
   Studio Command Palette Modal (Ctrl+K)
   ========================================================================== */
.command-palette-overlay {
  position: fixed;
  inset: 0;
  background: rgba(20, 24, 43, 0.65);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 10000;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding-top: clamp(60px, 14vh, 120px);
  padding-left: 16px;
  padding-right: 16px;
  animation: fadeIn 140ms ease-out;
}

.command-palette-dialog {
  background: #FFFFFF;
  border: 1px solid var(--border-mist);
  border-radius: var(--radius-lg);
  box-shadow: 0 20px 60px rgba(20, 24, 43, 0.24);
  width: 100%;
  max-width: 620px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.command-palette-search {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border-mist);
  background: #FAFBFD;
}

.command-palette-search svg {
  color: var(--accent-electric);
  flex-shrink: 0;
}

.command-palette-search input {
  flex: 1;
  border: none;
  background: transparent;
  font-family: var(--font-body);
  font-size: 1.05rem;
  color: var(--text-ink);
  outline: none;
}

.cmd-esc-badge {
  background: #F1F4FA;
  border: 1px solid #D2D8E6;
  border-radius: 4px;
  padding: 2px 7px;
  font-size: 0.74rem;
  font-family: ui-monospace, 'SF Mono', Menlo, Monaco, Consolas, monospace;
  color: var(--text-muted);
  cursor: pointer;
}

.command-palette-list {
  max-height: 380px;
  overflow-y: auto;
  padding: 8px;
}

.cmd-palette-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background-color var(--transition-fast);
}

.cmd-palette-item:hover,
.cmd-palette-item.active {
  background-color: #EEF2FF;
}

.cmd-palette-item-left {
  display: flex;
  align-items: center;
  gap: 12px;
}

.cmd-palette-item-icon {
  font-size: 1.2rem;
}

.cmd-palette-item-title {
  font-weight: 600;
  font-size: 0.92rem;
  color: var(--text-ink);
}

.cmd-palette-item-desc {
  font-size: 0.78rem;
  color: var(--text-muted);
}

.cmd-palette-item-cat {
  font-size: 0.7rem;
  font-family: ui-monospace, 'SF Mono', Menlo, Monaco, Consolas, monospace;
  background: #F1F4FA;
  border: 1px solid var(--border-mist);
  padding: 2px 6px;
  border-radius: 4px;
  color: var(--text-secondary);
  text-transform: uppercase;
}

.command-palette-footer {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 10px 18px;
  background: #F8F9FC;
  border-top: 1px solid var(--border-mist);
  font-size: 0.76rem;
  color: var(--text-subtle);
}

.command-palette-footer kbd {
  background: #FFFFFF;
  border: 1px solid #CBD5E1;
  border-radius: 3px;
  padding: 1px 5px;
  font-family: ui-monospace, 'SF Mono', Menlo, Monaco, Consolas, monospace;
  color: var(--text-secondary);
}

/* Responsive Rules for Document Canvas Studio */
@media (max-width: 768px) {
  .document-canvas-stage {
    margin-bottom: 18px;
    border-radius: var(--radius-lg);
  }
  .hero-canvas-viewport {
    padding: 16px 12px;
    min-height: 320px;
  }
  .hero-paper-sheet {
    width: 100%;
    max-width: 360px;
  }
  .canvas-stage-header {
    flex-direction: column;
    align-items: stretch;
    gap: 8px;
    padding: 10px 14px;
  }
  .canvas-page-nav {
    justify-content: center;
  }
  .canvas-quick-tools {
    justify-content: center;
    gap: 4px;
  }
  .deck-section-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
  }
}

@media (max-width: 480px) {
  .hero-canvas-viewport {
    padding: 12px 8px;
    min-height: 270px;
  }
  .hero-paper-sheet {
    max-width: 290px;
  }
  .canvas-quick-tools .btn {
    padding: 3px 7px;
    font-size: 0.74rem;
  }
}

/* Respect prefers-reduced-motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}