/* Shared Reset & Core Design System */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  /* Typography */
  --font-sans: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', SFMono-Regular, Consolas, monospace;

  /* Transitions */
  --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
}

/* Dark Theme Palette (Default) */
[data-theme="dark"] {
  --bg-primary: #0a0b0d;
  --bg-primary-rgb: 10, 11, 13;
  --bg-secondary: #121316;
  --bg-tertiary: #191a1e;
  --border-color: rgba(255, 255, 255, 0.08);
  --border-color-hover: rgba(255, 255, 255, 0.16);
  --text-primary: #f3f4f6;
  --text-secondary: #8e939e;
  --text-muted: #4e535e;
  
  --accent: #6366f1;
  --accent-hover: #4f46e5;
  --accent-rgb: 99, 102, 241;
  
  --success: #10b981;
  --success-bg: rgba(16, 185, 129, 0.1);
  --error: #ef4444;
  --error-bg: rgba(239, 68, 68, 0.1);
  
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.5);
  --shadow-md: 0 12px 24px rgba(0, 0, 0, 0.6);
  --shadow-lg: 0 20px 40px rgba(0, 0, 0, 0.7);
  
  --scrollbar-thumb: #282a30;
  --scrollbar-track: #0f1013;
}

/* Light Theme Palette */
[data-theme="light"] {
  --bg-primary: #f5f6f8;
  --bg-primary-rgb: 245, 246, 248;
  --bg-secondary: #ffffff;
  --bg-tertiary: #f0f1f4;
  --border-color: rgba(0, 0, 0, 0.07);
  --border-color-hover: rgba(0, 0, 0, 0.14);
  --text-primary: #0f172a;
  --text-secondary: #5e6b7e;
  --text-muted: #94a3b8;
  
  --accent: #4f46e5;
  --accent-hover: #3730a3;
  --accent-rgb: 79, 70, 229;
  
  --success: #059669;
  --success-bg: rgba(5, 150, 105, 0.08);
  --error: #dc2626;
  --error-bg: rgba(220, 38, 38, 0.08);

  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 8px 20px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 16px 36px rgba(0, 0, 0, 0.08);

  --scrollbar-thumb: #cfd4dc;
  --scrollbar-track: #f1f3f5;
}

/* Base Body Elements */
body {
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background-color var(--transition-normal), color var(--transition-normal);
}

/* Global Scrollbar Customization */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}
::-webkit-scrollbar-track {
  background: var(--scrollbar-track);
}
::-webkit-scrollbar-thumb {
  background: var(--scrollbar-thumb);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--accent);
}

/* App Core Container */
.app-container {
  width: 100%;
  max-width: 1200px;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  padding: 76px 24px 0 24px;
  margin: 0 auto;
}

/* Shared Header Navigation */
.app-header {
  position: fixed;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  max-width: 1200px;
  height: 76px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--border-color);
  background-color: rgba(var(--bg-primary-rgb), 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  z-index: 1000;
  padding: 0 24px;
  box-sizing: border-box;
}

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

.logo-icon {
  width: 28px;
  height: 28px;
  color: var(--accent);
  transition: transform var(--transition-normal);
}

.logo-group:hover .logo-icon {
  transform: rotate(12deg) scale(1.05);
}

.logo-text {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 24px;
}

/* Mobile Toggle Button */
.menu-toggle-btn {
  display: none;
  background: transparent;
  border: none;
  cursor: pointer;
  flex-direction: column;
  justify-content: space-between;
  width: 20px;
  height: 14px;
  padding: 0;
  z-index: 1010;
  outline: none;
}

.menu-toggle-btn span {
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--text-primary);
  border-radius: 2px;
  transition: transform var(--transition-normal), opacity var(--transition-normal);
}

/* Hamburg menu animations */
.menu-toggle-btn.active span:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

.menu-toggle-btn.active span:nth-child(2) {
  opacity: 0;
}

.menu-toggle-btn.active span:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

@media (max-width: 768px) {
  .menu-toggle-btn {
    display: flex;
  }

  .nav-links {
    position: fixed;
    top: 76px;
    left: 0;
    right: 0;
    flex-direction: column;
    background-color: rgba(var(--bg-primary-rgb), 0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    padding: 24px;
    gap: 20px;
    transform: translateY(-20px);
    opacity: 0;
    pointer-events: none;
    transition: transform var(--transition-normal), opacity var(--transition-normal);
    z-index: 999;
  }

  .app-header.menu-open .nav-links {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .nav-link.active::after {
    display: none; /* Hide active indicator line on mobile view drawer */
  }
}

.nav-link {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  text-decoration: none;
  padding: 6px 4px;
  position: relative;
  transition: color var(--transition-fast);
}

.nav-link:hover {
  color: var(--text-primary);
}

.nav-link.active {
  color: var(--accent);
  font-weight: 600;
}

.nav-link.active::after {
  content: "";
  position: absolute;
  bottom: -28px;
  left: 0;
  right: 0;
  height: 2px;
  background-color: var(--accent);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

/* Local & Secure Shield Badge */
.trust-badge {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
  box-shadow: var(--shadow-sm);
}

.shield-icon {
  width: 14px;
  height: 14px;
  color: var(--accent);
  filter: drop-shadow(0 0 2px rgba(var(--accent-rgb), 0.3));
}

/* Theme Toggle Button */
.theme-toggle-btn {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  width: 38px;
  height: 38px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background-color var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast);
  box-shadow: var(--shadow-sm);
}

.theme-toggle-btn:hover {
  background-color: var(--bg-tertiary);
  border-color: var(--border-color-hover);
  transform: translateY(-1px);
}

.theme-toggle-btn .icon {
  width: 18px;
  height: 18px;
}

[data-theme="dark"] .sun-icon {
  display: none;
}
[data-theme="light"] .moon-icon {
  display: none;
}

/* Button UI Components */
.btn {
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 600;
  padding: 10px 20px;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  text-decoration: none;
  transition: background-color var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast), transform var(--transition-fast);
}

.btn-icon {
  width: 16px;
  height: 16px;
}

.btn-primary {
  background-color: var(--accent);
  color: #ffffff;
}

.btn-primary:hover {
  background-color: var(--accent-hover);
}

.btn-primary:active {
  transform: translateY(1px);
}

.btn-secondary {
  background-color: var(--bg-secondary);
  border-color: var(--border-color);
  color: var(--text-primary);
}

.btn-secondary:hover:not(:disabled) {
  background-color: var(--bg-tertiary);
  border-color: var(--border-color-hover);
}

.btn-secondary:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

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

.btn-ghost:hover {
  background-color: var(--bg-secondary);
  color: var(--text-primary);
}

/* ==========================================================================
   ADSENSE ALIGNED AD SLOTS STYLING (.ad-slot)
   ========================================================================== */
.ad-slot {
  display: none !important; /* HIDE AD PLACEHOLDERS TILL LAUNCH. Change to 'flex' to show ads. */
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background-color: var(--bg-secondary);
  border: 1px dashed var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-muted);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  position: relative;
  overflow: hidden;
  margin: 32px auto;
}

.ad-slot::before {
  content: "Advertisement";
  margin-bottom: 8px;
  font-family: var(--font-sans);
}

/* Common Ad Sizes */
.ad-leaderboard {
  max-width: 728px;
  width: 100%;
  height: 90px;
}

.ad-rectangle {
  width: 300px;
  height: 250px;
}

/* Workspace Specific Ad Placement spacing to avoid overlap clicks */
.workspace-ad-sidebar {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin: 20px 0 0 0;
  width: 100%;
}

@media (max-width: 960px) {
  .workspace-ad-sidebar {
    display: none; /* Hide rectangle side ads on mobile to ensure clean screen layout */
  }
}

/* ==========================================================================
   LANDING PAGE STYLING (index.html)
   ========================================================================== */

.hero-section {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  min-height: calc(100vh - 76px);
  max-width: 800px;
  margin: 0 auto;
  padding: 40px 0 80px 0;
  box-sizing: border-box;
  position: relative;
}

.hero-section h1 {
  font-size: 44px;
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: 20px;
}

.hero-section .subtitle {
  font-size: 18px;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 32px;
}

/* Scroll Indicator at the bottom of the hero */
.scroll-indicator {
  position: absolute;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  color: var(--text-muted);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  pointer-events: none;
}

.scroll-arrow {
  width: 18px;
  height: 18px;
  color: var(--accent);
  animation: bounce 2s infinite;
}

@keyframes bounce {
  0%, 20%, 50%, 80%, 100% {
    transform: translateY(0);
  }
  40% {
    transform: translateY(-6px);
  }
  60% {
    transform: translateY(-3px);
  }
}

/* Educational content section layout */
.editorial-section {
  margin-bottom: 60px;
  line-height: 1.6;
}

.editorial-section h2 {
  font-size: 26px;
  font-weight: 700;
  margin-bottom: 16px;
  letter-spacing: -0.01em;
}

.editorial-section p {
  color: var(--text-secondary);
  font-size: 15px;
  margin-bottom: 20px;
}

.editorial-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  margin-bottom: 60px;
}

@media (max-width: 768px) {
  .editorial-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
}

/* Educational Tables Styling */
.table-container {
  overflow-x: auto;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  background-color: var(--bg-secondary);
  margin: 24px 0 40px 0;
  box-shadow: var(--shadow-sm);
}

table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 14px;
}

th {
  background-color: var(--bg-tertiary);
  color: var(--text-primary);
  font-weight: 600;
  padding: 12px 18px;
  border-bottom: 1px solid var(--border-color);
}

td {
  padding: 14px 18px;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-secondary);
}

tr:last-child td {
  border-bottom: none;
}

tr:hover td {
  background-color: rgba(255, 255, 255, 0.01);
}

/* FAQ Accordion Styling */
.faq-container {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin: 32px 0 60px 0;
}

details.faq-item {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color var(--transition-fast);
}

details.faq-item:hover {
  border-color: var(--border-color-hover);
}

summary.faq-question {
  padding: 16px 20px;
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
  cursor: pointer;
  outline: none;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

summary.faq-question::-webkit-details-marker {
  display: none;
}

summary.faq-question::after {
  content: "+";
  font-size: 18px;
  font-weight: 400;
  color: var(--accent);
  transition: transform var(--transition-fast);
}

details.faq-item[open] summary.faq-question::after {
  content: "\2212"; /* Unicode Minus character */
}

.faq-answer {
  padding: 0 20px 20px 20px;
  font-size: 14px;
  line-height: 1.6;
  color: var(--text-secondary);
  border-top: 1px dashed var(--border-color);
  padding-top: 16px;
}

/* ==========================================================================
   CONVERTER WORKSPACE (app.html)
   ========================================================================== */

.workspace-grid {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 28px;
  align-items: start;
  flex: 1;
  margin-bottom: 48px;
}

@media (max-width: 960px) {
  .workspace-grid {
    grid-template-columns: 1fr;
  }
}

.settings-card {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-md);
  position: sticky;
  top: 24px;
}

.settings-card h2 {
  font-size: 16px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-secondary);
  margin-bottom: 20px;
}

.settings-group {
  margin-bottom: 20px;
}

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

.label {
  display: block;
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 8px;
  color: var(--text-primary);
}

.select-wrapper {
  position: relative;
}

.select-wrapper::after {
  content: "";
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  width: 0;
  height: 0;
  border-left: 5px solid transparent;
  border-right: 5px solid transparent;
  border-top: 5px solid var(--text-secondary);
  pointer-events: none;
}

select {
  width: 100%;
  appearance: none;
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  padding: 10px 16px;
  font-size: 14px;
  font-weight: 500;
  border-radius: var(--radius-md);
  outline: none;
  cursor: pointer;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(var(--accent-rgb), 0.15);
}

.label-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
}

.value-badge {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  padding: 2px 6px;
  border-radius: 4px;
  color: var(--accent);
}

input[type="range"] {
  width: 100%;
  appearance: none;
  background: var(--bg-primary);
  height: 6px;
  border-radius: 3px;
  outline: none;
  margin: 10px 0;
}

input[type="range"]::-webkit-slider-thumb {
  appearance: none;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--accent);
  cursor: pointer;
  transition: transform var(--transition-fast), background-color var(--transition-fast);
  box-shadow: 0 0 4px rgba(0, 0, 0, 0.25);
}

input[type="range"]::-webkit-slider-thumb:hover {
  transform: scale(1.2);
  background: var(--accent-hover);
}

.help-text {
  display: block;
  font-size: 12px;
  color: var(--text-secondary);
  margin-top: 6px;
  line-height: 1.4;
}

.divider {
  border: 0;
  height: 1px;
  background-color: var(--border-color);
  margin: 20px 0;
}

.toggle-wrapper {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.toggle-label {
  margin-bottom: 0;
}

.switch {
  position: relative;
  display: inline-block;
  width: 44px;
  height: 24px;
}

.switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  transition: .25s;
  border-radius: 24px;
}

.slider:before {
  position: absolute;
  content: "";
  height: 16px;
  width: 16px;
  left: 3px;
  bottom: 3px;
  background-color: var(--text-secondary);
  transition: .25s;
  border-radius: 50%;
}

input:checked + .slider {
  background-color: var(--accent);
  border-color: var(--accent);
}

input:checked + .slider:before {
  transform: translateX(20px);
  background-color: #ffffff;
}

.collapsible {
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  transition: max-height var(--transition-normal) ease-out, opacity var(--transition-normal) ease-out, margin-top var(--transition-normal);
}

.collapsible.expanded {
  max-height: 300px;
  opacity: 1;
  margin-top: 16px;
}

.resize-controls-container {
  display: flex;
  flex-direction: column;
  gap: 12px;
  background-color: var(--bg-primary);
  padding: 12px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
}

.tabs {
  display: flex;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 2px;
}

.tab-btn {
  flex: 1;
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-family: var(--font-sans);
  font-size: 12px;
  font-weight: 500;
  padding: 6px 0;
  border-radius: 4px;
  cursor: pointer;
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.tab-btn.active {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  box-shadow: var(--shadow-sm);
}

.resize-subgroup {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.input-wrapper {
  display: flex;
  position: relative;
  align-items: center;
}

input[type="number"] {
  width: 100%;
  font-family: var(--font-sans);
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  padding: 8px 36px 8px 12px;
  font-size: 14px;
  font-weight: 500;
  border-radius: var(--radius-sm);
  outline: none;
}

input[type="number"]:focus {
  border-color: var(--accent);
}

.input-suffix {
  position: absolute;
  right: 12px;
  font-size: 13px;
  color: var(--text-secondary);
  font-weight: 500;
  pointer-events: none;
}

.hidden {
  display: none !important;
}

.workbench {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.drop-zone {
  background-color: var(--bg-secondary);
  border: 2px dashed var(--border-color);
  border-radius: var(--radius-lg);
  padding: 56px 24px;
  text-align: center;
  cursor: pointer;
  transition: border-color var(--transition-normal), background-color var(--transition-normal), box-shadow var(--transition-normal);
  box-shadow: var(--shadow-sm);
  position: relative;
}

.drop-zone:hover, .drop-zone.dragover {
  border-color: var(--accent);
  background-color: rgba(var(--accent-rgb), 0.02);
  box-shadow: 0 0 0 4px rgba(var(--accent-rgb), 0.1);
}

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

.drop-zone-content {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.upload-icon-container {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  color: var(--text-secondary);
  transition: transform var(--transition-normal), color var(--transition-normal);
}

.drop-zone:hover .upload-icon-container, .drop-zone.dragover .upload-icon-container {
  transform: translateY(-4px);
  color: var(--accent);
  border-color: rgba(var(--accent-rgb), 0.3);
}

.upload-icon {
  width: 24px;
  height: 24px;
}

.drop-title {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 6px;
}

.browse-link {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.drop-subtitle {
  font-size: 13px;
  color: var(--text-secondary);
}

.action-bar {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  box-shadow: var(--shadow-sm);
  animation: slideIn var(--transition-normal) forwards;
}

@media (max-width: 768px) {
  .action-bar {
    flex-direction: column;
    align-items: stretch;
  }
}

.action-bar-info {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

#queueProgressText {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
}

.progress-container {
  width: 100%;
  height: 6px;
  background-color: var(--bg-primary);
  border-radius: 3px;
  overflow: hidden;
}

.progress-bar-fill {
  height: 100%;
  background: var(--accent);
  width: 0%;
  border-radius: 3px;
  transition: width var(--transition-fast) ease-out;
}

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

@media (max-width: 480px) {
  .action-buttons {
    flex-direction: column;
  }
  .action-buttons button {
    width: 100%;
  }
}

.files-container {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  animation: slideIn var(--transition-normal) forwards;
}

.files-header {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.2fr 1.2fr;
  padding: 12px 20px;
  background-color: var(--bg-tertiary);
  border-bottom: 1px solid var(--border-color);
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-secondary);
}

.files-list {
  max-height: 480px;
  overflow-y: auto;
}

.file-row {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.2fr 1.2fr;
  align-items: center;
  padding: 14px 20px;
  border-bottom: 1px solid var(--border-color);
  transition: background-color var(--transition-fast);
}

.file-row:last-child {
  border-bottom: none;
}

.file-row:hover {
  background-color: rgba(255, 255, 255, 0.01);
}

.col-file {
  display: flex;
  align-items: center;
  gap: 12px;
  overflow: hidden;
}

.thumb-preview {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-sm);
  object-fit: cover;
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  flex-shrink: 0;
}

.file-meta {
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.file-name {
  font-size: 14px;
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  color: var(--text-primary);
}

.file-type-badge {
  font-size: 10px;
  text-transform: uppercase;
  font-family: var(--font-mono);
  color: var(--text-secondary);
  margin-top: 2px;
}

.col-size, .col-new-size {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--text-secondary);
}

.col-new-size {
  font-weight: 500;
}

.savings-label {
  display: block;
  font-size: 11px;
  color: var(--success);
  font-weight: 600;
  margin-top: 2px;
}

.savings-loss {
  color: var(--text-secondary);
}

.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 12px;
  width: fit-content;
}

.status-ready {
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
}

.status-converting {
  background-color: rgba(99, 102, 241, 0.1);
  border: 1px solid rgba(99, 102, 241, 0.2);
  color: var(--accent);
}

.status-done {
  background-color: var(--success-bg);
  border: 1px solid rgba(16, 185, 129, 0.2);
  color: var(--success);
}

.status-error {
  background-color: var(--error-bg);
  border: 1px solid rgba(239, 68, 68, 0.2);
  color: var(--error);
}

.col-actions {
  display: flex;
  gap: 8px;
}

.action-icon-btn {
  background: transparent;
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.action-icon-btn:hover:not(:disabled) {
  border-color: var(--border-color-hover);
  color: var(--text-primary);
  background-color: var(--bg-primary);
}

.action-icon-btn.download-btn {
  color: var(--success);
  border-color: rgba(16, 185, 129, 0.2);
}

.action-icon-btn.download-btn:hover {
  background-color: var(--success-bg);
  border-color: var(--success);
}

.action-icon-btn.delete-btn {
  color: var(--error);
  border-color: rgba(239, 68, 68, 0.2);
}

.action-icon-btn.delete-btn:hover {
  background-color: var(--error-bg);
  border-color: var(--error);
}

.action-icon-btn:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

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

/* ==========================================================================
   LEGAL PAGES (privacy.html & terms.html)
   ========================================================================== */

.legal-content {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow-md);
  margin-bottom: 60px;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.legal-content h1 {
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 12px;
}

.legal-content .last-updated {
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 32px;
  display: block;
}

.legal-body {
  font-size: 15px;
  line-height: 1.7;
  color: var(--text-secondary);
}

.legal-body h2 {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-primary);
  margin: 28px 0 12px 0;
}

.legal-body h2:first-of-type {
  margin-top: 0;
}

.legal-body p {
  margin-bottom: 16px;
}

.legal-body ul {
  margin-bottom: 16px;
  padding-left: 20px;
}

.legal-body li {
  margin-bottom: 8px;
}

.badge-trust-large {
  display: flex;
  align-items: center;
  gap: 10px;
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  padding: 12px 18px;
  border-radius: var(--radius-md);
  color: var(--success);
  font-weight: 600;
  margin-bottom: 28px;
  width: fit-content;
}

.badge-trust-large svg {
  width: 20px;
  height: 20px;
}

/* ==========================================================================
   SHARED UTILS
   ========================================================================== */

.spinner {
  width: 14px;
  height: 14px;
  border: 2px solid rgba(var(--accent-rgb), 0.25);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateY(6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.app-footer {
  margin-top: auto;
  border-top: 1px solid var(--border-color);
  padding: 24px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
  color: var(--text-secondary);
}

@media (max-width: 640px) {
  .app-footer {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }
}

.footer-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

.footer-link {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer-link:hover {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.footer-separator {
  color: var(--text-muted);
}

@media (max-width: 768px) {
  .files-header {
    display: none;
  }
  .file-row {
    grid-template-columns: 1fr;
    gap: 10px;
    padding: 16px;
  }
  .col-size, .col-new-size {
    display: flex;
    justify-content: space-between;
  }
  .col-size::before {
    content: "Original:";
    font-weight: 600;
    color: var(--text-secondary);
  }
  .col-new-size::before {
    content: "Output:";
    font-weight: 600;
    color: var(--text-secondary);
  }
  .col-status {
    display: flex;
    justify-content: space-between;
    align-items: center;
  }
  .col-status::before {
    content: "Status:";
    font-weight: 600;
    color: var(--text-secondary);
  }
  .col-actions {
    justify-content: flex-end;
    margin-top: 4px;
  }
}