/* ==========================================================================
   Universal PDF Studio Pro - High-Definition Modern CSS Design System
   ========================================================================== */

:root {
  --gov-navy: #1f2d48;
  --gov-navy-light: #2c3e60;
  --gov-blue: #2563eb;
  --gov-blue-dark: #1d4ed8;
  --gov-blue-light: #eff6ff;
  --gov-orange: #ea580c;
  --gov-green: #15803d;
  --gov-green-light: #f0fdf4;
  --gov-bg: #f8fafc;
  --gov-card-bg: #ffffff;
  --gov-border: #e2e8f0;
  --gov-border-subtle: #f1f5f9;
  --gov-text: #0f172a;
  --gov-text-muted: #64748b;
  --gov-shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.05);
  --gov-shadow: 0 4px 16px -2px rgba(15, 23, 42, 0.08);
  --gov-shadow-lg: 0 12px 32px -4px rgba(15, 23, 42, 0.12);
  --gov-radius: 14px;
  --gov-radius-sm: 8px;
  --gov-radius-pill: 9999px;
  --font-main: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --transition: all 0.18s cubic-bezier(0.16, 1, 0.3, 1);
  
  --bg-surface: #ffffff;
  --bg-surface-subtle: #f8fafc;
  --border-color: #e2e8f0;
  --text-primary: #0f172a;
  --text-secondary: #334155;
  --text-muted: #64748b;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-main);
  background-color: var(--gov-bg);
  color: var(--gov-text);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background-image: 
    radial-gradient(at 0% 0%, rgba(37, 99, 235, 0.04) 0px, transparent 50%),
    radial-gradient(at 100% 0%, rgba(234, 88, 12, 0.03) 0px, transparent 50%);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Top Tricolor Ribbon */
.gov-tricolor-strip {
  height: 4px;
  width: 100%;
  background: linear-gradient(90deg, #ff9933 0%, #ff9933 33.33%, #ffffff 33.33%, #ffffff 66.66%, #138808 66.66%, #138808 100%);
}

/* Header */
.gov-header {
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--gov-border);
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 1px 4px rgba(15, 23, 42, 0.04);
}

.gov-header-inner {
  max-width: 1560px;
  margin: 0 auto;
  padding: 10px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.gov-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: inherit;
}

.gov-emblem {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--gov-navy), var(--gov-blue));
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  color: #ffffff;
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.28);
}

.gov-brand-title {
  font-size: 1.12rem;
  font-weight: 800;
  color: var(--gov-navy);
  display: flex;
  align-items: center;
  gap: 8px;
  letter-spacing: -0.01em;
}

.gov-brand-badge {
  font-size: 0.65rem;
  font-weight: 800;
  padding: 2px 8px;
  border-radius: var(--gov-radius-pill);
  background: #2563eb;
  color: #ffffff;
  text-transform: uppercase;
  letter-spacing: 0.4px;
}

.gov-brand-subtitle {
  font-size: 0.72rem;
  color: var(--gov-text-muted);
  font-weight: 600;
}

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

.gov-header-link {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--gov-text-muted);
  text-decoration: none;
  padding: 6px 12px;
  border-radius: var(--gov-radius-pill);
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.gov-header-link:hover, .gov-header-link.active {
  color: var(--gov-blue);
  background: var(--gov-blue-light);
}

.gov-offline-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.74rem;
  font-weight: 800;
  color: var(--gov-green);
  background: var(--gov-green-light);
  border: 1px solid rgba(21, 128, 61, 0.2);
  padding: 5px 12px;
  border-radius: var(--gov-radius-pill);
}

.gov-pulse-dot {
  width: 7px;
  height: 7px;
  background-color: var(--gov-green);
  border-radius: 50%;
  animation: pulseGreen 2s infinite;
}

@keyframes pulseGreen {
  0% { box-shadow: 0 0 0 0 rgba(21, 128, 61, 0.4); }
  70% { box-shadow: 0 0 0 6px rgba(21, 128, 61, 0); }
  100% { box-shadow: 0 0 0 0 rgba(21, 128, 61, 0); }
}

/* Modern Button System */
.gov-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 7px 15px;
  font-size: 0.8rem;
  font-weight: 700;
  font-family: inherit;
  border-radius: var(--gov-radius-pill, 9999px);
  border: 1.5px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: all 0.18s cubic-bezier(0.16, 1, 0.3, 1);
  white-space: nowrap;
  user-select: none;
  box-sizing: border-box;
}

.gov-btn-sm {
  padding: 5px 12px;
  font-size: 0.74rem;
}

.gov-btn-lg {
  padding: 11px 22px;
  font-size: 0.9rem;
  font-weight: 800;
}

.gov-btn-primary {
  background: linear-gradient(135deg, #2563eb, #1d4ed8);
  color: #ffffff;
  border-color: transparent;
  box-shadow: 0 3px 10px rgba(37, 99, 235, 0.28);
}

.gov-btn-primary:hover:not(:disabled) {
  background: linear-gradient(135deg, #1d4ed8, #1e40af);
  box-shadow: 0 5px 16px rgba(37, 99, 235, 0.38);
  transform: translateY(-1px);
}

.gov-btn-primary:active:not(:disabled) {
  transform: translateY(0.5px);
  box-shadow: 0 2px 8px rgba(37, 99, 235, 0.25);
}

.gov-btn-secondary {
  background: #ffffff;
  color: #1e293b;
  border-color: #cbd5e1;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.04);
}

[data-theme="dark"] .gov-btn-secondary {
  background: #131d33;
  color: #f8fafc;
  border-color: #24324f;
}

.gov-btn-secondary:hover:not(:disabled) {
  background: #eff6ff;
  border-color: #93c5fd;
  color: #2563eb;
  transform: translateY(-1px);
  box-shadow: 0 3px 10px rgba(37, 99, 235, 0.12);
}

.gov-btn-success {
  background: linear-gradient(135deg, #16a34a, #15803d);
  color: #ffffff;
  border-color: transparent;
  box-shadow: 0 3px 10px rgba(22, 163, 74, 0.28);
}

.gov-btn-success:hover:not(:disabled) {
  background: linear-gradient(135deg, #15803d, #14532d);
  box-shadow: 0 5px 16px rgba(22, 163, 74, 0.38);
  transform: translateY(-1px);
}

.gov-btn-danger {
  background: #ffffff;
  color: #dc2626;
  border-color: #fee2e2;
}

.gov-btn-danger:hover:not(:disabled) {
  background: #fef2f2;
  border-color: #dc2626;
  color: #b91c1c;
  transform: translateY(-1px);
}

.gov-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none !important;
  box-shadow: none !important;
}

/* 2-Column Main Workspace Layout */
.studio-container {
  max-width: 1600px;
  margin: 0 auto;
  padding: 16px 20px 40px 20px;
  flex: 1;
  width: 100%;
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr);
  gap: 16px;
  align-items: start;
  box-sizing: border-box;
}

@media (max-width: 1024px) {
  .studio-container {
    grid-template-columns: 1fr;
  }
}

/* Left Sidebar: PDF TOOLS & UTILITIES (Matching Screenshot 1) */
.sidebar-tools-panel {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 14px;
  box-shadow: var(--gov-shadow-sm);
  display: flex;
  flex-direction: column;
  gap: 8px;
  position: sticky;
  top: 76px;
  max-height: calc(100vh - 96px);
  overflow-y: auto;
  scrollbar-width: thin;
}

.sidebar-tools-panel::-webkit-scrollbar {
  width: 4px;
}
.sidebar-tools-panel::-webkit-scrollbar-thumb {
  background: #cbd5e1;
  border-radius: 4px;
}

.sidebar-section-title {
  font-size: 0.76rem;
  font-weight: 800;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.6px;
  padding-bottom: 8px;
  margin-bottom: 4px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* Preset Tool Card */
.pdf-tool-item-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 12px;
  border-radius: var(--radius-md);
  background: #ffffff;
  border: 1px solid var(--border-color);
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  color: inherit;
  position: relative;
}

.pdf-tool-item-card:hover {
  border-color: #93c5fd;
  background: #f8fafc;
  transform: translateY(-1.5px);
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.08);
}

.pdf-tool-item-card.active {
  border-color: #2563eb;
  background: rgba(37, 99, 235, 0.04);
  box-shadow: 0 0 0 1.5px #2563eb;
}

.pdf-tool-item-left {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: 1;
  min-width: 0;
}

.pdf-tool-item-icon {
  font-size: 1.35rem;
  width: 38px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #f1f5f9;
  border-radius: 9px;
  flex-shrink: 0;
  transition: var(--transition);
  border: 1px solid rgba(0,0,0,0.04);
}

.pdf-tool-item-card:hover .pdf-tool-item-icon {
  transform: scale(1.08);
}

/* Distinct Tool Color Badges */
.pdf-tool-item-card[data-tool="excel"] .pdf-tool-item-icon { background: #dcfce7; color: #15803d; }
.pdf-tool-item-card[data-tool="previews"] .pdf-tool-item-icon { background: #eff6ff; color: #2563eb; }
.pdf-tool-item-card[data-tool="sign"] .pdf-tool-item-icon { background: #f3e8ff; color: #7c3aed; }
.pdf-tool-item-card[data-tool="compress"] .pdf-tool-item-icon { background: #ffedd5; color: #ea580c; }
.pdf-tool-item-card[data-tool="split"] .pdf-tool-item-icon { background: #fee2e2; color: #dc2626; }
.pdf-tool-item-card[data-tool="merge"] .pdf-tool-item-icon { background: #e0e7ff; color: #4338ca; }
.pdf-tool-item-card[data-tool="watermark"] .pdf-tool-item-icon { background: #ecfeff; color: #0891b2; }
.pdf-tool-item-card[data-tool="security"] .pdf-tool-item-icon { background: #f1f5f9; color: #334155; }
.pdf-tool-item-card[data-tool="word"] .pdf-tool-item-icon { background: #e0f2fe; color: #0284c7; }
.pdf-tool-item-card[data-tool="images"] .pdf-tool-item-icon { background: #fce7f3; color: #db2777; }

.pdf-tool-item-meta {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}

.pdf-tool-item-title-row {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

.pdf-tool-item-title {
  font-size: 0.825rem;
  font-weight: 700;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.pdf-tool-item-badge {
  font-size: 0.62rem;
  font-weight: 800;
  padding: 1px 5px;
  border-radius: 4px;
  background: #16a34a;
  color: #ffffff;
  text-transform: uppercase;
}

.pdf-tool-item-desc {
  font-size: 0.7rem;
  color: var(--text-muted);
  line-height: 1.35;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.pdf-tool-item-open-btn {
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--text-secondary);
  background: #ffffff;
  border: 1px solid var(--border-color);
  padding: 5px 11px;
  border-radius: 6px;
  flex-shrink: 0;
  transition: var(--transition);
  cursor: pointer;
}

.pdf-tool-item-card:hover .pdf-tool-item-open-btn {
  background: #2563eb;
  color: #ffffff;
  border-color: #2563eb;
  box-shadow: 0 2px 6px rgba(37,99,235,0.25);
}

/* Right Main Studio Box (Matching Screenshot 2) */
.pdf-studio-card {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: 0 8px 32px -4px rgba(15, 23, 42, 0.08), 0 0 0 1px rgba(226, 232, 240, 0.8);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  min-height: 640px;
  min-width: 0;
  width: 100%;
  box-sizing: border-box;
  transition: box-shadow 0.25s ease;
}

/* Studio Header */
.pdf-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 18px;
  border-bottom: 1px solid var(--border-color);
  background: linear-gradient(180deg, #ffffff 0%, #fbfcfe 100%);
  flex-shrink: 0;
  gap: 12px;
  flex-wrap: wrap;
}

.pdf-header-doc-badge {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.82rem;
  font-weight: 900;
  letter-spacing: 0.6px;
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.28), inset 0 1px 1px rgba(255, 255, 255, 0.35);
  flex-shrink: 0;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.pdf-meta-pill {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 8px;
  background: #f1f5f9;
  border: 1px solid #e2e8f0;
  border-radius: var(--gov-radius-pill);
  font-size: 0.72rem;
  font-weight: 700;
  color: #475569;
}

.pdf-meta-pill-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 8px;
  background: #f0fdf4;
  border: 1px solid rgba(22, 163, 74, 0.25);
  border-radius: var(--gov-radius-pill);
  font-size: 0.72rem;
  font-weight: 800;
  color: #16a34a;
}

#btnPdfUploadAnother {
  background: #ffffff;
  color: #1e293b;
  border: 1.5px solid #cbd5e1;
  border-radius: var(--gov-radius-pill);
  padding: 6px 14px;
  font-size: 0.78rem;
  font-weight: 700;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.04);
  transition: all 0.18s cubic-bezier(0.16, 1, 0.3, 1);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
}

#btnPdfUploadAnother:hover {
  background: #eff6ff;
  border-color: #2563eb;
  color: #2563eb;
  box-shadow: 0 3px 10px rgba(37, 99, 235, 0.15);
  transform: translateY(-1px);
}

/* Studio Navigation Bar (Clean Responsive Strip) */
.pdf-modal-nav {
  display: flex;
  align-items: center;
  gap: 6px 8px;
  padding: 10px 16px;
  background: #f8fafc;
  border-bottom: 1px solid var(--border-color);
  flex-shrink: 0;
  flex-wrap: wrap;
  box-sizing: border-box;
  width: 100%;
}

.pdf-tab-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 6px 12px;
  border-radius: var(--gov-radius-pill);
  font-size: 0.78rem;
  font-weight: 600;
  border: 1px solid #e2e8f0;
  background: #ffffff;
  color: #334155;
  cursor: pointer;
  white-space: nowrap;
  height: 32px;
  line-height: 1;
  transition: all 0.18s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.03);
  outline: none;
  font-family: inherit;
  user-select: none;
}

.pdf-tab-btn:hover {
  border-color: #93c5fd;
  color: #2563eb;
  background: #eff6ff;
  transform: translateY(-1px);
  box-shadow: 0 2px 6px rgba(37, 99, 235, 0.08);
}

.pdf-tab-btn.active {
  background: linear-gradient(135deg, #2563eb, #1d4ed8) !important;
  color: #ffffff !important;
  border-color: #2563eb !important;
  box-shadow: 0 3px 12px rgba(37, 99, 235, 0.32) !important;
  font-weight: 700;
  transform: translateY(0);
}

.pdf-tab-badge {
  background: rgba(255, 255, 255, 0.25);
  color: #ffffff;
  padding: 1px 6px;
  border-radius: 9999px;
  font-size: 0.68rem;
  font-weight: 800;
}

.pdf-tab-btn:not(.active) .pdf-tab-badge {
  background: #e2e8f0;
  color: #475569;
}

/* Studio Body */
.pdf-modal-body {
  flex: 1;
  padding: 18px 20px;
  background: #ffffff;
  min-width: 0;
  max-width: 100%;
  box-sizing: border-box;
  overflow-x: hidden;
}

.pdf-tab-content {
  display: none;
  min-width: 0;
  max-width: 100%;
  box-sizing: border-box;
}

.pdf-tab-content.active {
  display: block;
  animation: fadeInTab 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes fadeInTab {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Responsive Sub-Toolbar */
.pdf-subtoolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 12px;
  padding: 8px 12px;
  background: var(--bg-surface-subtle);
  border-radius: 8px;
  border: 1px solid var(--border-color);
  box-sizing: border-box;
  width: 100%;
}

.pdf-subtoolbar-left,
.pdf-subtoolbar-right {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

/* Thumbnail Cards Grid (Matching Screenshot 2) */
.pdf-thumbnails-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(210px, 1fr));
  gap: 14px;
}

.pdf-thumbnail-card {
  background: #ffffff;
  border: 1.5px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 10px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  position: relative;
  transition: var(--transition);
  box-shadow: 0 1px 3px rgba(0,0,0,0.04);
}

.pdf-thumbnail-card:hover {
  border-color: #2563eb;
  box-shadow: 0 6px 18px rgba(37, 99, 235, 0.12);
  transform: translateY(-2px);
}

.pdf-thumbnail-card.selected {
  border-color: #2563eb;
  background: rgba(37, 99, 235, 0.02);
  box-shadow: 0 0 0 1px #2563eb;
}

.pdf-thumb-preview-wrap {
  width: 100%;
  height: 180px;
  background: #f8fafc;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  cursor: pointer;
  border: 1px solid var(--border-color);
  padding: 6px;
  box-sizing: border-box;
}

.pdf-thumb-preview-wrap canvas {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  box-shadow: 0 3px 10px rgba(0,0,0,0.08);
  border-radius: 2px;
  background: #ffffff;
  border: 1px solid rgba(0,0,0,0.05);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  font-family: inherit;
  font-size: 0.8rem;
  font-weight: 700;
  padding: 7px 14px;
  border-radius: 7px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, #2563eb, #1d4ed8);
  color: #ffffff;
  box-shadow: 0 2px 8px rgba(37, 99, 235, 0.25);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #1d4ed8, #1e40af);
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.35);
  transform: translateY(-1px);
}

.btn-secondary {
  background: #ffffff;
  color: var(--text-secondary);
  border-color: var(--border-color);
}

.btn-secondary:hover {
  background: var(--bg-surface-subtle);
  border-color: #cbd5e1;
  color: var(--text-primary);
}

.btn-sm {
  padding: 5px 10px;
  font-size: 0.74rem;
  border-radius: 6px;
}

/* Gov Buttons Design System */
.gov-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 7px 14px;
  font-size: 0.78rem;
  font-weight: 700;
  font-family: inherit;
  border-radius: var(--gov-radius-pill, 9999px);
  border: 1.5px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: all 0.18s cubic-bezier(0.16, 1, 0.3, 1);
  white-space: nowrap;
  user-select: none;
  box-sizing: border-box;
}

.gov-btn-sm {
  padding: 6px 13px;
  font-size: 0.76rem;
}

.gov-btn-lg {
  padding: 10px 20px;
  font-size: 0.88rem;
}

.gov-btn-primary {
  background: linear-gradient(135deg, #2563eb, #1d4ed8);
  color: #ffffff;
  border-color: transparent;
  box-shadow: 0 2px 8px rgba(37, 99, 235, 0.28);
}

.gov-btn-primary:hover:not(:disabled) {
  background: linear-gradient(135deg, #1d4ed8, #1e40af);
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.38);
  transform: translateY(-1px);
}

.gov-btn-secondary {
  background: #ffffff;
  color: #1e293b;
  border-color: #cbd5e1;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.04);
}

[data-theme="dark"] .gov-btn-secondary {
  background: #131d33;
  color: #f8fafc;
  border-color: #24324f;
}

.gov-btn-secondary:hover:not(:disabled) {
  background: #eff6ff;
  border-color: #93c5fd;
  color: #2563eb;
  transform: translateY(-1px);
  box-shadow: 0 3px 10px rgba(37, 99, 235, 0.12);
}

.gov-btn-success, .gov-btn-green {
  background: linear-gradient(135deg, #16a34a, #15803d);
  color: #ffffff;
  border-color: transparent;
  box-shadow: 0 2px 8px rgba(22, 163, 74, 0.28);
}

.gov-btn-success:hover:not(:disabled), .gov-btn-green:hover:not(:disabled) {
  background: linear-gradient(135deg, #15803d, #14532d);
  box-shadow: 0 4px 14px rgba(22, 163, 74, 0.38);
  transform: translateY(-1px);
}

.gov-btn-danger {
  background: linear-gradient(135deg, #dc2626, #b91c1c);
  color: #ffffff;
  border-color: transparent;
  box-shadow: 0 2px 8px rgba(220, 38, 38, 0.28);
}

.gov-btn-danger:hover:not(:disabled) {
  background: linear-gradient(135deg, #b91c1c, #991b1b);
  box-shadow: 0 4px 14px rgba(220, 38, 38, 0.38);
  transform: translateY(-1px);
}

.gov-btn-orange {
  background: linear-gradient(135deg, #f97316, #ea580c);
  color: #ffffff;
  border-color: transparent;
  box-shadow: 0 2px 8px rgba(249, 115, 22, 0.28);
}

.gov-btn-orange:hover:not(:disabled) {
  background: linear-gradient(135deg, #ea580c, #c2410c);
  box-shadow: 0 4px 14px rgba(249, 115, 22, 0.38);
  transform: translateY(-1px);
}

.gov-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none !important;
  box-shadow: none !important;
}

/* Data Table */
.pdf-data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.78rem;
}

.pdf-data-table th, .pdf-data-table td {
  border: 1px solid var(--border-color);
  padding: 7px 12px;
  text-align: left;
  white-space: nowrap;
}

.pdf-data-table th {
  background: var(--bg-surface-subtle);
  font-weight: 800;
  color: var(--text-primary);
  position: sticky;
  top: 0;
  z-index: 2;
  text-transform: uppercase;
  letter-spacing: 0.3px;
}

.pdf-data-table tr:nth-child(even) td {
  background: rgba(0,0,0,0.015);
}

.pdf-data-table tr:hover td {
  background: rgba(37, 99, 235, 0.04);
}

/* Interactive Draggable / Resizable Overlay Box with 8 Handles */
.pdf-sign-box {
  position: absolute;
  cursor: move;
  user-select: none;
  box-sizing: border-box;
  touch-action: none;
  z-index: 25;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.pdf-sign-box:hover {
  box-shadow: 0 0 0 2px rgba(37, 99, 235, 0.35), 0 4px 12px rgba(0,0,0,0.12);
}

.pdf-sign-handle {
  position: absolute;
  width: 12px;
  height: 12px;
  background: #ffffff;
  border: 2px solid #2563eb;
  border-radius: 50%;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.25);
  box-sizing: border-box;
  z-index: 35;
  pointer-events: auto;
  transition: transform 0.1s ease, background 0.1s ease;
}

.pdf-sign-handle:hover {
  transform: scale(1.3);
  background: #2563eb;
  border-color: #ffffff;
}

.pdf-sign-handle.h-nw { top: -6px; left: -6px; cursor: nwse-resize; }
.pdf-sign-handle.h-ne { top: -6px; right: -6px; cursor: nesw-resize; }
.pdf-sign-handle.h-se { bottom: -6px; right: -6px; cursor: nwse-resize; }
.pdf-sign-handle.h-sw { bottom: -6px; left: -6px; cursor: nesw-resize; }
.pdf-sign-handle.h-n  { top: -6px; left: calc(50% - 6px); cursor: ns-resize; }
.pdf-sign-handle.h-s  { bottom: -6px; left: calc(50% - 6px); cursor: ns-resize; }
.pdf-sign-handle.h-w  { left: -6px; top: calc(50% - 6px); cursor: ew-resize; }
.pdf-sign-handle.h-e  { right: -6px; top: calc(50% - 6px); cursor: ew-resize; }

/* Modern Controls Card & Form Elements */
.pdf-sign-controls-card {
  display: flex;
  flex-direction: column;
  gap: 14px;
  background: #ffffff;
  padding: 18px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: 0 4px 16px rgba(15, 23, 42, 0.04);
}

.pdf-sign-card-title {
  font-size: 0.9rem;
  font-weight: 800;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 8px;
}

.pdf-mode-pill-group {
  display: flex;
  background: var(--bg-surface-subtle);
  padding: 3px;
  border-radius: 8px;
  border: 1px solid var(--border-color);
  gap: 3px;
}

.pdf-mode-pill-group .btn {
  flex: 1;
  font-size: 0.76rem;
  font-weight: 600;
  padding: 6px 8px;
  border-radius: 6px;
  border: 1px solid transparent;
  cursor: pointer;
}

.pdf-field-group {
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.pdf-field-label {
  font-size: 0.72rem;
  font-weight: 800;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.pdf-select-field, .pdf-text-field {
  width: 100%;
  padding: 8px 12px;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text-primary);
  background: #ffffff;
  border: 1.5px solid var(--border-color);
  border-radius: 8px;
  outline: none;
  box-sizing: border-box;
  transition: var(--transition);
  font-family: inherit;
}

.pdf-select-field:focus, .pdf-text-field:focus {
  border-color: #2563eb;
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.14);
}

.pdf-presets-grid, .preset-chips-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.pdf-preset-chip-btn {
  padding: 9px 8px;
  font-size: 0.75rem;
  font-weight: 700;
  border: 1.5px solid var(--border-color);
  background: var(--bg-surface-subtle);
  color: var(--text-secondary);
  border-radius: 8px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  text-align: center;
  font-family: inherit;
}

.pdf-preset-chip-btn:hover {
  background: #eff6ff;
  border-color: #93c5fd;
  color: #2563eb;
}

.preset-chip-btn {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 8px 10px;
  border-radius: var(--radius-sm);
  border: 1.5px solid var(--border-color);
  background: #ffffff;
  color: var(--text-primary);
  cursor: pointer;
  transition: var(--transition);
  text-align: left;
  box-shadow: 0 1px 2px rgba(0,0,0,0.03);
  font-family: inherit;
}

.preset-chip-btn:hover {
  border-color: #93c5fd;
  background: #eff6ff;
  transform: translateY(-1px);
}

.preset-chip-btn.active {
  background: linear-gradient(135deg, #1e3a8a, #2563eb) !important;
  color: #ffffff !important;
  border-color: #1e3a8a !important;
  box-shadow: 0 3px 10px rgba(37, 99, 235, 0.3) !important;
}

.preset-chip-btn b {
  font-size: 0.78rem;
  font-weight: 800;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 4px;
}

.preset-chip-btn.active b {
  color: #ffffff;
}

.preset-chip-btn small {
  font-size: 0.68rem;
  color: var(--text-muted);
  line-height: 1.2;
}

.preset-chip-btn.active small {
  color: rgba(255, 255, 255, 0.85);
}
  transform: translateY(-1px);
}

.pdf-preset-chip-btn.active {
  background: linear-gradient(135deg, #2563eb, #1d4ed8) !important;
  color: #ffffff !important;
  border-color: #2563eb !important;
  box-shadow: 0 3px 10px rgba(37, 99, 235, 0.3) !important;
  font-weight: 800;
}

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

.pdf-color-swatch-box {
  width: 34px;
  height: 34px;
  border: 2px solid #ffffff;
  box-shadow: 0 0 0 1.5px var(--border-color);
  border-radius: 7px;
  cursor: pointer;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.pdf-color-swatch-box input[type="color"] {
  width: 48px;
  height: 48px;
  border: none;
  padding: 0;
  margin: -8px;
  cursor: pointer;
  background: transparent;
}

.pdf-quick-colors {
  display: flex;
  gap: 6px;
  flex: 1;
}

.pdf-color-pill-btn {
  flex: 1;
  padding: 6px 8px;
  font-size: 0.72rem;
  font-weight: 700;
  border: 1.5px solid var(--border-color);
  border-radius: 6px;
  background: #ffffff;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 5px;
  transition: var(--transition);
}

.pdf-color-pill-btn:hover {
  border-color: #2563eb;
  background: #f8fafc;
}

.pdf-color-pill-btn .color-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

.pdf-dimensions-card {
  background: var(--bg-surface-subtle);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 10px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.pdf-dimensions-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.pdf-dimensions-title {
  font-size: 0.74rem;
  font-weight: 800;
  color: var(--text-primary);
}

.pdf-dimensions-badge {
  font-size: 0.7rem;
  font-weight: 800;
  color: #2563eb;
  background: rgba(37, 99, 235, 0.08);
  border: 1px solid rgba(37, 99, 235, 0.2);
  padding: 2px 7px;
  border-radius: 10px;
  font-family: monospace;
}

.pdf-dimensions-inputs-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
}

.pdf-dimension-input-group {
  display: flex;
  align-items: center;
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  overflow: hidden;
}

.pdf-dim-affix {
  padding: 4px 6px;
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--text-muted);
  background: var(--bg-surface-subtle);
  border-right: 1px solid var(--border-color);
}

.pdf-dim-suffix {
  padding: 4px 6px;
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--text-muted);
  background: var(--bg-surface-subtle);
  border-left: 1px solid var(--border-color);
}

.pdf-dim-number-input {
  flex: 1;
  width: 100%;
  border: none;
  outline: none;
  padding: 5px 6px;
  font-size: 0.78rem;
  font-weight: 600;
  font-family: inherit;
}

.pdf-size-presets-wrap {
  display: flex;
  gap: 4px;
  margin-top: 2px;
}

.pdf-size-preset-pill {
  flex: 1;
  padding: 4px 6px;
  font-size: 0.68rem;
  font-weight: 600;
  border: 1px solid var(--border-color);
  border-radius: 5px;
  background: #ffffff;
  color: var(--text-secondary);
  cursor: pointer;
  transition: var(--transition);
}

.pdf-size-preset-pill:hover {
  border-color: #2563eb;
  color: #2563eb;
}

.pdf-action-btn-primary {
  width: 100%;
  padding: 12px 18px;
  font-size: 0.88rem;
  font-weight: 800;
  background: linear-gradient(135deg, #2563eb, #1d4ed8);
  color: #ffffff;
  border: none;
  border-radius: 9px;
  cursor: pointer;
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.28);
  font-family: inherit;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.pdf-action-btn-primary:hover {
  background: linear-gradient(135deg, #1d4ed8, #1e40af);
  box-shadow: 0 6px 18px rgba(37, 99, 235, 0.38);
  transform: translateY(-1.5px);
}

.pdf-action-btn-primary:active {
  transform: translateY(0.5px);
  box-shadow: 0 2px 8px rgba(37, 99, 235, 0.25);
}

.pdf-action-btn-secondary {
  width: 100%;
  padding: 8px 14px;
  font-size: 0.8rem;
  font-weight: 700;
  background: #ffffff;
  color: var(--text-secondary);
  border: 1.5px solid var(--border-color);
  border-radius: 8px;
  cursor: pointer;
  font-family: inherit;
  transition: var(--transition);
}

.pdf-action-btn-secondary:hover {
  background: var(--bg-surface-subtle);
  border-color: #cbd5e1;
  color: var(--text-primary);
}

/* Page Reel Component (Compress Tab - Matching Screenshot) */
.pdf-compress-pages-reel {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 10px;
  background: var(--bg-surface-subtle);
  border: 1.5px solid var(--border-color);
  border-radius: 10px;
  max-height: 180px;
  overflow-y: auto;
  scrollbar-width: thin;
}

.pdf-compress-page-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 14px;
  background: #ffffff;
  border: 1.5px solid var(--border-color);
  border-radius: 8px;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--text-primary);
  cursor: pointer;
  transition: var(--transition);
  box-shadow: 0 1px 3px rgba(0,0,0,0.03);
  user-select: none;
}

.pdf-compress-page-pill:hover {
  border-color: #93c5fd;
  transform: translateY(-1.5px);
  box-shadow: 0 4px 10px rgba(37, 99, 235, 0.1);
}

.pdf-compress-page-pill.selected {
  border-color: #2563eb;
  background: #f0f7ff;
  box-shadow: 0 0 0 1px #2563eb;
}

.pdf-compress-rotate-btn {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 0.88rem;
  color: #2563eb;
  padding: 0 2px;
  transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  display: flex;
  align-items: center;
}

.pdf-compress-rotate-btn:hover {
  transform: rotate(90deg) scale(1.2);
}

/* Live Dual Comparison Stage */
.pdf-comparison-stage {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 16px;
  box-shadow: 0 2px 10px rgba(15, 23, 42, 0.02);
}

.pdf-comparison-viewport {
  height: 220px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: #f8fafc;
  border: 1.5px solid var(--border-color);
  border-radius: 10px;
  padding: 10px;
  position: relative;
}

.pdf-comparison-viewport canvas {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  background: #ffffff;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.08);
  border-radius: 3px;
}

/* Welcome Dropzone (When No PDF is loaded) */
.studio-welcome-dropzone {
  border: 2px dashed #93c5fd;
  background: linear-gradient(135deg, #f8fafc 0%, #eff6ff 100%);
  border-radius: var(--radius-lg);
  padding: 60px 24px;
  text-align: center;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  transition: var(--transition);
  min-height: 480px;
}

.studio-welcome-dropzone:hover {
  border-color: #2563eb;
  background: #eff6ff;
  transform: translateY(-2px);
}

.studio-welcome-icon {
  width: 72px;
  height: 72px;
  background: #ffffff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.4rem;
  color: #2563eb;
  box-shadow: 0 6px 18px rgba(37, 99, 235, 0.15);
}

.studio-welcome-title {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--text-primary);
}

.studio-welcome-sub {
  font-size: 0.84rem;
  color: var(--text-muted);
  max-width: 480px;
  line-height: 1.5;
}

.studio-quick-chips {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: center;
  margin-top: 8px;
}

.studio-quick-chip {
  padding: 6px 12px;
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--gov-radius-pill);
  font-size: 0.76rem;
  font-weight: 700;
  color: var(--text-secondary);
  box-shadow: var(--gov-shadow-sm);
}

/* Toast Notification */
.gov-toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: #1f2d48;
  color: #ffffff;
  padding: 12px 20px;
  border-radius: var(--gov-radius-pill);
  font-size: 0.85rem;
  font-weight: 700;
  box-shadow: var(--gov-shadow-lg);
  z-index: 99999;
  opacity: 0;
  transform: translateY(20px);
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  pointer-events: none;
}

.gov-toast.show {
  opacity: 1;
  transform: translateY(0);
}

/* Official Footer */
.gov-footer {
  background: #ffffff;
  border-top: 1px solid var(--gov-border);
  padding: 18px 24px;
  margin-top: auto;
}

.gov-footer-inner {
  max-width: 1560px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.gov-footer-links {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.gov-footer-link {
  font-size: 0.8rem;
  color: var(--gov-text-muted);
  text-decoration: none;
  font-weight: 600;
  transition: var(--transition);
}

.gov-footer-link:hover {
  color: var(--gov-blue);
}