/* =============================================
   UniDoc File Intelligence — Dark Theme
   Matching UniDoc Encrypt / Editor / Watermark
   ============================================= */

/* ── Google Fonts ── */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=JetBrains+Mono:wght@400;500;600&display=swap');

/* ── CSS Variables (UniDoc Brand) ── */
:root {
  /* Primary palette */
  --primary: #7C4DFF;
  --primary-light: #B388FF;
  --primary-dark: #5E35B1;
  --secondary: #00E5FF;
  --secondary-dark: #00B8D4;
  --tertiary: #FF4081;
  --accent-purple: #E040FB;
  --accent-amber: #FFB300;
  --accent-cyan: #00BCD4;

  /* Surfaces */
  --surface: #1A1B21;
  --surface-light: #252731;
  --surface-lighter: #2e3040;
  --background: #0D0E12;

  /* Text */
  --text: #FFFFFF;
  --text-secondary: rgba(255,255,255,0.60);
  --text-muted: rgba(255,255,255,0.40);

  /* Borders */
  --border: rgba(255,255,255,0.08);
  --border-light: rgba(255,255,255,0.12);
  --border-hover: rgba(124,77,255,0.35);

  /* Semantic colors */
  --safe-color: #4CAF50;
  --safe-bg: rgba(76,175,80,0.12);
  --caution-color: #FFB300;
  --caution-bg: rgba(255,179,0,0.12);
  --risky-color: #EF5350;
  --risky-bg: rgba(239,83,80,0.12);

  /* Radius */
  --radius: 16px;
  --radius-sm: 10px;
  --radius-lg: 24px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow: 0 8px 32px rgba(0,0,0,0.3);
  --shadow-lg: 0 16px 48px rgba(0,0,0,0.4);
  --shadow-glow: 0 0 40px rgba(124,77,255,0.15);

  /* Transitions */
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ── Reset ── */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }
body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--background);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
  min-height: 100vh;
}
a { text-decoration: none; color: inherit; }
button { cursor: pointer; border: none; background: none; font-family: inherit; color: var(--text); }

.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.hidden { display: none !important; }

/* ── Background Animation ── */
.bg-animation { position: fixed; inset: 0; z-index: -1; overflow: hidden; }
.bg-gradient {
  position: absolute; inset: 0;
  background:
    radial-gradient(ellipse 80% 50% at 50% -20%, rgba(124,77,255,0.15), transparent),
    radial-gradient(ellipse 60% 40% at 80% 80%, rgba(0,229,255,0.08), transparent),
    radial-gradient(ellipse 50% 30% at 10% 60%, rgba(255,64,129,0.06), transparent);
}
.bg-particles { position: absolute; inset: 0; }
.particle {
  position: absolute; width: 2px; height: 2px;
  background: rgba(124,77,255,0.4); border-radius: 50%;
  animation: float linear infinite;
}
@keyframes float {
  0% { transform: translateY(100vh) scale(0); opacity: 0; }
  10% { opacity: 1; } 90% { opacity: 1; }
  100% { transform: translateY(-10vh) scale(1); opacity: 0; }
}

/* ── Navbar ── */
.navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  padding: 14px 0;
  background: rgba(13,14,18,0.8);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}
.nav-container {
  max-width: 1200px; margin: 0 auto; padding: 0 24px;
  display: flex; align-items: center; justify-content: space-between;
}
.nav-logo { display: flex; align-items: center; gap: 10px; font-size: 1.25rem; font-weight: 700; }
.nav-logo-img { width: 32px; height: 32px; border-radius: 8px; }
.logo-text { color: var(--text); }
.logo-accent { color: var(--primary); }
.nav-links { display: flex; gap: 6px; }
.nav-link {
  padding: 8px 16px; border-radius: var(--radius-sm); font-size: 0.9rem;
  font-weight: 500; color: var(--text-secondary); transition: var(--transition);
}
.nav-link:hover, .nav-link.active { color: var(--text); background: rgba(124,77,255,0.1); }
.nav-cta {
  display: flex; align-items: center; gap: 8px; padding: 10px 20px;
  background: var(--primary); border-radius: var(--radius-sm); font-size: 0.85rem;
  font-weight: 600; color: #fff; transition: var(--transition);
}
.nav-cta:hover { background: var(--primary-dark); transform: translateY(-1px); }
.nav-cta .material-icons-round { font-size: 18px; }
.nav-toggle { display: none; color: var(--text); padding: 8px; }
.mobile-menu {
  display: none; position: fixed; top: 62px; left: 0; right: 0;
  background: rgba(13,14,18,0.95); backdrop-filter: blur(20px);
  padding: 16px 24px; border-bottom: 1px solid var(--border); z-index: 99;
  flex-direction: column; gap: 4px;
}
.mobile-menu.open { display: flex; }
.mobile-link {
  padding: 12px 16px; border-radius: var(--radius-sm); font-weight: 500;
  color: var(--text-secondary); transition: var(--transition);
}
.mobile-link:hover { color: var(--text); background: rgba(124,77,255,0.1); }

/* ── Hero Section ── */
.hero { padding: 140px 0 80px; text-align: center; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px; padding: 8px 20px;
  background: rgba(124,77,255,0.12); border: 1px solid rgba(124,77,255,0.25);
  border-radius: 100px; font-size: 0.85rem; font-weight: 600; color: var(--primary-light);
  margin-bottom: 28px;
}
.hero-badge .material-icons-round { font-size: 18px; }
.hero-title {
  font-size: clamp(2.2rem, 5vw, 3.8rem); font-weight: 800; line-height: 1.1;
  letter-spacing: -0.02em; margin-bottom: 20px;
}
.gradient-text {
  background: linear-gradient(135deg, var(--primary), var(--secondary), var(--tertiary));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.hero-subtitle {
  font-size: 1.1rem; color: var(--text-secondary); max-width: 620px;
  margin: 0 auto 36px; line-height: 1.7;
}
.hero-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; margin-bottom: 48px; }
.hero-stats {
  display: inline-flex; align-items: center; gap: 28px; padding: 18px 36px;
  background: rgba(26,27,33,0.6); border: 1px solid var(--border);
  border-radius: var(--radius-lg); backdrop-filter: blur(10px);
}
.stat { text-align: center; }
.stat-value {
  display: block; font-size: 1.4rem; font-weight: 700;
  font-family: 'JetBrains Mono', monospace; color: var(--primary-light);
}
.stat-label { font-size: 0.72rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.1em; font-weight: 500; }
.stat-divider { width: 1px; height: 36px; background: var(--border-light); }

/* ── Privacy Badge ── */
.privacy-badge {
  display: inline-flex; align-items: center; gap: 8px;
  margin-top: 16px; padding: 8px 20px;
  background: var(--safe-bg);
  border: 1px solid rgba(76,175,80,0.2);
  border-radius: var(--radius-full);
  font-size: 0.82rem; font-weight: 600; color: var(--safe-color);
}
.privacy-badge .dot {
  width: 7px; height: 7px; background: var(--safe-color);
  border-radius: 50%; animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(1.5); }
}

/* ── Buttons (UniDoc style) ── */
.btn {
  display: inline-flex; align-items: center; gap: 10px; padding: 12px 24px;
  border-radius: var(--radius-sm); font-size: 0.9rem; font-weight: 600;
  transition: var(--transition); white-space: nowrap;
}
.btn .material-icons-round { font-size: 20px; }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(124,77,255,0.3); }
.btn-outline { background: transparent; border: 1px solid var(--border-light); color: var(--text); }
.btn-outline:hover { border-color: var(--primary); background: rgba(124,77,255,0.08); transform: translateY(-2px); }
.btn-lg { padding: 14px 32px; font-size: 1rem; }

/* ── Upload Section ── */
.upload-section { padding: 0 0 80px; }
.section-header { text-align: center; margin-bottom: 40px; }
.section-icon {
  display: inline-flex; padding: 16px; border-radius: var(--radius); margin-bottom: 20px;
}
.section-icon .material-icons-round { font-size: 32px; color: #fff; }
.intel-icon { background: linear-gradient(135deg, var(--primary), var(--accent-cyan)); }
.section-title { font-size: 1.8rem; font-weight: 700; margin-bottom: 10px; }
.section-subtitle { font-size: 1rem; color: var(--text-secondary); max-width: 480px; margin: 0 auto; }

/* Upload Card */
.upload-card {
  max-width: 680px; margin: 0 auto;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 32px;
  box-shadow: var(--shadow);
}

.drop-zone {
  position: relative;
  border: 2px dashed var(--border-light);
  border-radius: var(--radius);
  padding: 52px 24px;
  text-align: center;
  cursor: pointer;
  transition: var(--transition);
}
.drop-zone:hover, .drop-zone.drag-over {
  border-color: var(--primary);
  background: rgba(124,77,255,0.05);
}
.drop-zone.drag-over .drop-icon { transform: scale(1.2); color: var(--primary); }
.drop-icon {
  font-size: 52px; color: var(--text-muted); margin-bottom: 14px;
  transition: var(--transition); display: block;
  pointer-events: none;
}
.drop-zone h3 { font-size: 1.15rem; font-weight: 600; margin-bottom: 6px; pointer-events: none; }
.drop-zone p { color: var(--text-secondary); font-size: 0.9rem; pointer-events: none; }
.drop-hint { display: block; margin-top: 14px; font-size: 0.75rem; color: var(--text-muted); pointer-events: none; }

/* File input - hidden but accessible */
.file-input { 
  position: absolute; 
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.browse-btn {
  display: inline-flex; align-items: center; gap: 8px;
  margin-top: 20px; padding: 12px 28px;
  background: var(--primary); color: #fff;
  border-radius: var(--radius-sm); font-size: 0.92rem; font-weight: 600;
  cursor: pointer; transition: var(--transition);
  box-shadow: 0 4px 16px rgba(124,77,255,0.3);
  border: none; font-family: inherit;
  position: relative;
  z-index: 2;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
}
.browse-btn:hover { background: var(--primary-dark); box-shadow: 0 8px 24px rgba(124,77,255,0.4); transform: translateY(-2px); }
.browse-btn:active { transform: scale(0.98); }

/* ── Tool Link Card ── */
.tool-link-section {
  padding: 24px 0;
}
.tool-link-card {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 24px 28px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  text-decoration: none;
  color: var(--text);
  transition: var(--transition);
  cursor: pointer;
}
.tool-link-card:hover {
  border-color: var(--primary);
  background: var(--surface-light);
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(124,77,255,0.15);
}
.tool-link-icon {
  width: 56px;
  height: 56px;
  background: linear-gradient(135deg, var(--primary), var(--accent-purple));
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.tool-link-icon .material-icons-round {
  font-size: 28px;
  color: #fff;
}
.tool-link-content {
  flex: 1;
}
.tool-link-content h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 4px;
}
.tool-link-content p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin: 0;
}
.tool-link-arrow {
  font-size: 24px;
  color: var(--text-muted);
  transition: var(--transition);
}
.tool-link-card:hover .tool-link-arrow {
  color: var(--primary);
  transform: translateX(4px);
}

/* ── Loading Overlay ── */
.loading-overlay {
  display: none; position: fixed; inset: 0;
  background: rgba(13,14,18,0.88); backdrop-filter: blur(12px);
  z-index: 1000; align-items: center; justify-content: center;
  flex-direction: column; gap: 20px;
}
.loading-overlay.active { display: flex; }
.spinner {
  width: 52px; height: 52px;
  border: 3px solid var(--surface-light);
  border-top-color: var(--primary);
  border-radius: 50%; animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.loading-overlay p { font-size: 1rem; font-weight: 500; color: var(--text-secondary); }

/* ── Results Section ── */
.results-section { display: none; max-width: 1200px; margin: 0 auto; padding-bottom: 60px; }
.results-section.active { display: block; animation: fadeSlideIn 0.5s ease-out; }
@keyframes fadeSlideIn {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ── Batch Tabs ── */
.batch-tabs {
  display: flex; gap: 8px; overflow-x: auto;
  padding: 0 4px 16px; margin-bottom: 8px;
  scrollbar-width: thin;
}
.batch-tabs::-webkit-scrollbar { height: 4px; }
.batch-tabs::-webkit-scrollbar-thumb { background: rgba(124,77,255,0.3); border-radius: 4px; }
.batch-tab {
  flex-shrink: 0; padding: 10px 20px;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-full); font-size: 0.85rem; font-weight: 500;
  color: var(--text-secondary); cursor: pointer; transition: var(--transition);
  white-space: nowrap; max-width: 200px; overflow: hidden; text-overflow: ellipsis;
}
.batch-tab:hover { border-color: var(--border-hover); background: var(--surface-light); }
.batch-tab.active {
  background: var(--primary); color: #fff;
  border-color: transparent; box-shadow: 0 4px 16px rgba(124,77,255,0.3);
}
.new-file-btn {
  flex-shrink: 0; padding: 10px 20px;
  background: transparent; border: 1.5px dashed var(--border-light);
  border-radius: var(--radius-full); font-size: 0.85rem; font-weight: 500;
  color: var(--text-muted); cursor: pointer; transition: var(--transition);
  font-family: inherit;
}
.new-file-btn:hover { border-color: var(--primary); color: var(--primary-light); }

/* ── Dashboard Grid ── */
.dashboard-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 20px;
}
.dashboard-grid .card.full-width { grid-column: 1 / -1; }

/* ── Card Component ── */
.card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 28px;
  transition: var(--transition); animation: fadeIn 0.45s ease-out both;
  backdrop-filter: blur(10px);
}
.card:hover { border-color: var(--border-hover); box-shadow: var(--shadow); }
.card:nth-child(1) { animation-delay: 0.05s; }
.card:nth-child(2) { animation-delay: 0.1s; }
.card:nth-child(3) { animation-delay: 0.15s; }
.card:nth-child(4) { animation-delay: 0.2s; }
.card:nth-child(5) { animation-delay: 0.25s; }
.card:nth-child(6) { animation-delay: 0.3s; }
.card:nth-child(7) { animation-delay: 0.35s; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: translateY(0); } }

.card-header { display: flex; align-items: center; gap: 10px; margin-bottom: 20px; }
.card-header .card-icon {
  width: 40px; height: 40px; border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  font-size: 18px; flex-shrink: 0;
}
.card-header .card-icon.blue { background: rgba(124,77,255,0.15); }
.card-header .card-icon.green { background: rgba(76,175,80,0.15); }
.card-header .card-icon.amber { background: rgba(255,179,0,0.15); }
.card-header .card-icon.rose { background: rgba(255,64,129,0.15); }
.card-header .card-icon.teal { background: rgba(0,188,212,0.15); }
.card-header .card-icon.purple { background: rgba(224,64,251,0.15); }
.card-title { font-size: 1rem; font-weight: 700; }

/* ── File Summary ── */
.file-summary { display: flex; align-items: flex-start; gap: 24px; }
.file-summary .file-type-icon {
  width: 72px; height: 72px;
  background: linear-gradient(135deg, var(--primary), var(--accent-cyan));
  border-radius: var(--radius); display: flex; align-items: center;
  justify-content: center; font-size: 36px; flex-shrink: 0;
}
.file-summary .file-info { flex: 1; min-width: 0; }
.file-summary .file-name {
  font-size: 1.15rem; font-weight: 700; word-break: break-all; margin-bottom: 4px;
}
.file-summary .file-meta { display: flex; flex-wrap: wrap; gap: 16px; margin-top: 8px; }
.file-summary .meta-item {
  display: flex; align-items: center; gap: 6px;
  font-size: 0.85rem; color: var(--text-muted);
}
.file-summary .meta-item .meta-label { font-weight: 500; color: var(--text-secondary); }
.mismatch-warning {
  display: flex; align-items: center; gap: 8px;
  margin-top: 14px; padding: 10px 16px;
  background: var(--risky-bg); border: 1px solid rgba(239,83,80,0.2);
  border-radius: var(--radius-sm); font-size: 0.85rem;
  color: var(--risky-color); font-weight: 500;
  animation: shakeX 0.5s ease-in-out;
}
@keyframes shakeX {
  0%, 100% { transform: translateX(0); }
  20% { transform: translateX(-4px); }
  40% { transform: translateX(4px); }
  60% { transform: translateX(-2px); }
  80% { transform: translateX(2px); }
}

/* ── Data Rows ── */
.data-rows { display: flex; flex-direction: column; gap: 8px; }
.data-row {
  display: flex; justify-content: space-between; align-items: center;
  padding: 10px 14px; background: var(--surface-light);
  border-radius: var(--radius-sm); font-size: 0.9rem;
  transition: background var(--transition-fast);
}
.data-row:hover { background: var(--surface-lighter); }
.data-row .label { color: var(--text-secondary); font-weight: 500; }
.data-row .value {
  font-weight: 600; display: flex; align-items: center; gap: 6px;
  font-family: 'JetBrains Mono', monospace; font-size: 0.85rem;
}
.status-yes { color: var(--safe-color); }
.status-no { color: var(--text-muted); }
.status-warn { color: var(--caution-color); }
.status-danger { color: var(--risky-color); }

/* ── Trust Score ── */
.trust-score-display { text-align: center; margin-bottom: 20px; }
.score-ring { position: relative; width: 120px; height: 120px; margin: 0 auto 12px; }
.score-ring svg { width: 120px; height: 120px; transform: rotate(-90deg); }
.score-ring .bg-ring { fill: none; stroke: var(--surface-light); stroke-width: 8; }
.score-ring .fg-ring {
  fill: none; stroke-width: 8; stroke-linecap: round;
  transition: stroke-dashoffset 1.2s ease-out, stroke 0.5s;
}
.score-ring .score-text {
  position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%);
  font-size: 1.6rem; font-weight: 800; font-family: 'JetBrains Mono', monospace;
}
.trust-level-badge {
  display: inline-block; padding: 6px 20px;
  border-radius: var(--radius-full); font-size: 0.82rem;
  font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase;
}
.trust-level-badge.safe { background: var(--safe-bg); color: var(--safe-color); border: 1px solid rgba(76,175,80,0.25); }
.trust-level-badge.caution { background: var(--caution-bg); color: var(--caution-color); border: 1px solid rgba(255,179,0,0.25); }
.trust-level-badge.risky { background: var(--risky-bg); color: var(--risky-color); border: 1px solid rgba(239,83,80,0.25); }

.trust-flags { margin-top: 18px; display: flex; flex-direction: column; gap: 8px; }
.trust-flag {
  display: flex; align-items: center; gap: 8px;
  padding: 8px 14px; border-radius: var(--radius-sm);
  font-size: 0.85rem; font-weight: 500;
}
.trust-flag.danger { background: var(--risky-bg); color: var(--risky-color); }
.trust-flag.warning { background: var(--caution-bg); color: var(--caution-color); }
.trust-flag.info { background: rgba(124,77,255,0.1); color: var(--primary-light); }

/* ── Insights ── */
.insights-list { display: flex; flex-direction: column; gap: 12px; }
.insight-card {
  display: flex; gap: 14px; padding: 16px;
  border-radius: var(--radius-sm); background: var(--surface-light);
  border-left: 4px solid var(--border-light); transition: var(--transition);
}
.insight-card:hover { background: var(--surface-lighter); transform: translateX(2px); }
.insight-card.info { border-left-color: var(--primary); }
.insight-card.warning { border-left-color: var(--caution-color); }
.insight-card.danger { border-left-color: var(--risky-color); }
.insight-card.success { border-left-color: var(--safe-color); }
.insight-card .insight-icon { font-size: 1.4rem; flex-shrink: 0; margin-top: 2px; }
.insight-card .insight-content h4 { font-size: 0.92rem; font-weight: 600; margin-bottom: 4px; }
.insight-card .insight-content p { font-size: 0.84rem; color: var(--text-secondary); line-height: 1.5; }

/* ── Actions Grid ── */
.actions-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 10px; }
.action-btn {
  display: flex; align-items: center; gap: 8px;
  padding: 14px 18px; background: var(--surface-light);
  border: 1px solid var(--border); border-radius: var(--radius-sm);
  font-size: 0.85rem; font-weight: 600; color: var(--text-secondary);
  cursor: pointer; transition: var(--transition); font-family: inherit; text-align: left;
}
.action-btn:hover {
  background: rgba(124,77,255,0.08); border-color: var(--primary);
  color: var(--primary-light); transform: translateY(-2px);
}
.action-btn .action-icon { font-size: 1.2rem; }

/* ── Guidance ── */
.guidance-block {
  padding: 16px; background: var(--surface-light);
  border-radius: var(--radius-sm); margin-bottom: 14px;
}
.guidance-block h4 { font-size: 0.9rem; font-weight: 600; margin-bottom: 8px; }
.guidance-block p { font-size: 0.85rem; color: var(--text-secondary); line-height: 1.6; }
.tools-list { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
.tool-tag {
  padding: 5px 14px; background: rgba(124,77,255,0.1);
  border: 1px solid rgba(124,77,255,0.2); border-radius: var(--radius-full);
  font-size: 0.8rem; font-weight: 500; color: var(--primary-light);
}
.fix-suggestion {
  padding: 14px; background: var(--caution-bg);
  border: 1px solid rgba(255,179,0,0.2); border-radius: var(--radius-sm);
  font-size: 0.85rem; color: var(--text-secondary); line-height: 1.6;
}

/* ── Preview ── */
.preview-container {
  display: flex; align-items: center; justify-content: center;
  min-height: 200px; background: var(--surface-light);
  border-radius: var(--radius-sm); overflow: hidden; position: relative;
}
.preview-container img {
  max-width: 100%; max-height: 420px; object-fit: contain;
  border-radius: 6px;
}
.preview-container canvas {
  max-width: 100%; max-height: 420px;
  border-radius: 6px; box-shadow: 0 4px 24px rgba(0,0,0,0.4);
}
.preview-placeholder {
  display: flex; flex-direction: column; align-items: center;
  gap: 10px; padding: 40px; color: var(--text-muted);
}
.preview-placeholder .preview-icon-lg { font-size: 56px; }
.preview-placeholder p { font-size: 0.9rem; font-weight: 500; }

/* ── Features Section ── */
.features-section { padding: 80px 0; }
.features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.feature-card {
  padding: 24px; background: rgba(26,27,33,0.7); border: 1px solid var(--border);
  border-radius: var(--radius); transition: var(--transition); backdrop-filter: blur(10px);
}
.feature-card:hover { border-color: var(--primary); transform: translateY(-4px); box-shadow: 0 12px 40px rgba(0,0,0,0.3); }
.feature-icon {
  display: inline-flex; padding: 12px; border-radius: 14px; margin-bottom: 16px;
  background: color-mix(in srgb, var(--accent) 15%, transparent);
}
.feature-icon .material-icons-round { font-size: 24px; color: var(--accent); }
.feature-card h3 { font-size: 1rem; font-weight: 700; margin-bottom: 6px; }
.feature-card p { font-size: 0.85rem; color: var(--text-secondary); line-height: 1.6; }

/* ── CTA / Promo Section ── */
.promo-section { padding: 60px 0; }
.promo-card {
  max-width: 800px; margin: 0 auto; padding: 48px 40px;
  background: linear-gradient(135deg, rgba(124,77,255,0.12), rgba(0,229,255,0.06));
  border: 1px solid rgba(124,77,255,0.2);
  border-radius: var(--radius-lg); text-align: center;
  backdrop-filter: blur(10px);
}
.promo-card h2 {
  font-size: 1.6rem; font-weight: 800; margin-bottom: 12px;
}
.promo-card .gradient-text-sm {
  background: linear-gradient(135deg, var(--primary-light), var(--secondary));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.promo-card p {
  font-size: 0.95rem; color: var(--text-secondary); max-width: 560px;
  margin: 0 auto 28px; line-height: 1.7;
}
.promo-card .promo-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.promo-features {
  display: flex; gap: 24px; justify-content: center; flex-wrap: wrap;
  margin-top: 28px; padding-top: 24px; border-top: 1px solid var(--border);
}
.promo-feature {
  display: flex; align-items: center; gap: 8px;
  font-size: 0.85rem; color: var(--text-secondary); font-weight: 500;
}
.promo-feature .material-icons-round { font-size: 20px; color: var(--safe-color); }

/* ── Footer ── */
.footer { padding: 40px 0 28px; border-top: 1px solid var(--border); }
.footer-inner { display: flex; justify-content: space-between; align-items: center; margin-bottom: 24px; }
.footer-brand { display: flex; align-items: center; gap: 10px; }
.footer-logo { width: 28px; height: 28px; border-radius: 8px; }
.footer-links { display: flex; gap: 20px; }
.footer-links a { font-size: 0.88rem; color: var(--text-secondary); transition: var(--transition); }
.footer-links a:hover { color: var(--primary); }
.footer-bottom { padding-top: 20px; border-top: 1px solid var(--border); }
.footer-bottom p { font-size: 0.78rem; color: var(--text-muted); text-align: center; }

/* ── Toast ── */
.toast {
  position: fixed; bottom: 24px; right: 24px;
  padding: 14px 24px; background: var(--surface);
  border: 1px solid var(--border); color: var(--text);
  border-radius: var(--radius-sm); font-size: 0.88rem; font-weight: 500;
  box-shadow: var(--shadow-lg); z-index: 2000;
  animation: toastIn 0.4s ease-out; display: flex; align-items: center; gap: 8px;
}
.toast.fade-out { animation: toastOut 0.3s ease-in forwards; }
@keyframes toastIn { from { opacity: 0; transform: translateY(16px); } to { opacity: 1; transform: translateY(0); } }
@keyframes toastOut { from { opacity: 1; transform: translateY(0); } to { opacity: 0; transform: translateY(16px); } }

/* ── Scrollbar ── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(124,77,255,0.3); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: rgba(124,77,255,0.5); }
::selection { background: rgba(124,77,255,0.3); color: #fff; }

/* ── Responsive ── */
@media (max-width: 1024px) {
  .features-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .dashboard-grid { grid-template-columns: 1fr; }
  .nav-links, .nav-cta { display: none; }
  .nav-toggle { display: flex; }
  .hero { padding: 120px 0 60px; }
  .hero-title { font-size: 2rem; }
  .hero-stats { gap: 16px; padding: 16px 20px; flex-wrap: wrap; }
  .hero-actions { flex-direction: column; align-items: center; }
  .features-grid { grid-template-columns: 1fr; }
  .file-summary { flex-direction: column; align-items: center; text-align: center; }
  .file-summary .file-meta { justify-content: center; }
  .actions-grid { grid-template-columns: 1fr 1fr; }
  .card { padding: 20px; }
  .upload-card { padding: 20px; }
  .footer-inner { flex-direction: column; gap: 20px; text-align: center; }
  .footer-links { flex-wrap: wrap; justify-content: center; }
  .promo-card { padding: 32px 24px; }
}
@media (max-width: 480px) {
  .container { padding: 0 16px; }
  .hero-title { font-size: 1.6rem; }
  .actions-grid { grid-template-columns: 1fr; }
  .hero-stats { flex-direction: column; gap: 12px; }
  .stat-divider { width: 40px; height: 1px; }
  .promo-features { flex-direction: column; gap: 12px; }
}

/* =============================================
   NEW INTELLIGENCE LAYER STYLES
   ============================================= */

/* ── Confidence Section ── */
.confidence-section {
  margin-top: 16px;
  padding: 14px;
  background: var(--surface-light);
  border-radius: var(--radius-sm);
}

.confidence-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
}

.confidence-label {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.confidence-badge {
  padding: 4px 12px;
  border-radius: var(--radius-full);
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.confidence-bar-container {
  width: 100%;
  height: 8px;
  background: var(--surface-lighter);
  border-radius: 4px;
  overflow: hidden;
}

.confidence-bar {
  height: 100%;
  border-radius: 4px;
  transition: width 1s cubic-bezier(0.4, 0, 0.2, 1);
}

.confidence-details {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 8px;
}

.confidence-value {
  font-size: 0.9rem;
  font-family: 'JetBrains Mono', monospace;
}

.confidence-method {
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* ── Corruption Card ── */
.corruption-issues {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.corruption-issue {
  display: flex;
  gap: 12px;
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  background: var(--surface-light);
}

.corruption-issue.critical {
  background: var(--risky-bg);
  border-left: 3px solid var(--risky-color);
}

.corruption-issue.warning {
  background: var(--caution-bg);
  border-left: 3px solid var(--caution-color);
}

.corruption-issue .issue-icon {
  font-size: 1.3rem;
  flex-shrink: 0;
}

.corruption-issue .issue-content strong {
  display: block;
  font-size: 0.88rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.corruption-issue .issue-content p {
  font-size: 0.82rem;
  color: var(--text-secondary);
  line-height: 1.5;
  margin: 0;
}

.corruption-badge {
  margin-left: auto;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.corruption-badge.critical {
  background: var(--risky-bg);
  color: var(--risky-color);
  border: 1px solid rgba(239,83,80,0.25);
}

.corruption-badge.warning {
  background: var(--caution-bg);
  color: var(--caution-color);
  border: 1px solid rgba(255,179,0,0.25);
}

/* ── Trust Score Breakdown ── */
.trust-explanation {
  font-size: 0.85rem;
  color: var(--text-secondary);
  text-align: center;
  margin-bottom: 16px;
  line-height: 1.5;
}

.trust-breakdown {
  margin-top: 18px;
  border-top: 1px solid var(--border);
  padding-top: 14px;
}

.trust-breakdown summary {
  cursor: pointer;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--primary-light);
  display: flex;
  align-items: center;
  gap: 8px;
}

.trust-breakdown summary:hover {
  color: var(--primary);
}

.trust-breakdown summary::marker {
  color: var(--primary);
}

.breakdown-list {
  margin-top: 12px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.breakdown-item {
  display: grid;
  grid-template-columns: 1fr auto;
  grid-template-rows: auto auto;
  gap: 4px 12px;
  padding: 10px 12px;
  background: var(--surface-light);
  border-radius: var(--radius-sm);
  font-size: 0.82rem;
}

.breakdown-item .breakdown-label {
  font-weight: 600;
  color: var(--text);
}

.breakdown-item .breakdown-points {
  font-family: 'JetBrains Mono', monospace;
  font-weight: 700;
  text-align: right;
}

.breakdown-item.penalty .breakdown-points {
  color: var(--risky-color);
}

.breakdown-item.bonus .breakdown-points {
  color: var(--safe-color);
}

.breakdown-item .breakdown-reason {
  grid-column: 1 / -1;
  font-size: 0.78rem;
  color: var(--text-muted);
  line-height: 1.4;
}

/* ── Enhanced Batch Tabs ── */
.batch-tabs {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding: 0 4px 16px;
  margin-bottom: 8px;
  scrollbar-width: thin;
  align-items: center;
}

.batch-tab {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
  padding: 10px 18px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
  max-width: 200px;
  position: relative;
}

.batch-tab .tab-icon {
  font-size: 1rem;
}

.batch-tab .tab-name {
  overflow: hidden;
  text-overflow: ellipsis;
}

.batch-tab .tab-warning {
  position: absolute;
  top: -4px;
  right: -4px;
  width: 18px;
  height: 18px;
  background: var(--risky-color);
  color: #fff;
  border-radius: 50%;
  font-size: 0.7rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: pulse 2s infinite;
}

.batch-tab.has-issues {
  border-color: rgba(255,179,0,0.4);
}

.batch-tab.has-issues.active {
  border-color: transparent;
}

.batch-nav-btn {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 50%;
  color: var(--text-secondary);
  cursor: pointer;
  transition: var(--transition);
}

.batch-nav-btn:hover {
  background: var(--primary);
  border-color: transparent;
  color: #fff;
}

.batch-counter {
  flex-shrink: 0;
  padding: 6px 14px;
  background: rgba(124,77,255,0.1);
  border-radius: var(--radius-full);
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--primary-light);
  font-family: 'JetBrains Mono', monospace;
}

.new-file-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;
  padding: 10px 18px;
  background: transparent;
  border: 1.5px dashed var(--border-light);
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-muted);
  cursor: pointer;
  transition: var(--transition);
  font-family: inherit;
}

/* ── Action Card Enhancements ── */
.action-count {
  margin-left: auto;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-muted);
  background: var(--surface-light);
  padding: 4px 10px;
  border-radius: var(--radius-full);
}

/* ── Preview Enhancements ── */
.preview-controls {
  margin-left: auto;
  display: flex;
  gap: 8px;
}

.preview-control-btn {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--surface-light);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  cursor: pointer;
  transition: var(--transition);
}

.preview-control-btn:hover {
  background: var(--primary);
  border-color: transparent;
  color: #fff;
}

.preview-image-wrapper {
  padding: 16px;
}

.pdf-preview-wrapper {
  padding: 16px;
  text-align: center;
}

.pdf-preview-canvas {
  max-width: 100%;
  max-height: 420px;
  border-radius: 6px;
  box-shadow: 0 4px 24px rgba(0,0,0,0.4);
}

.pdf-page-info {
  margin-top: 12px;
  font-size: 0.82rem;
  color: var(--text-muted);
}

.video-preview-wrapper,
.audio-preview-wrapper {
  padding: 20px;
  text-align: center;
  width: 100%;
}

.audio-preview-wrapper .audio-icon {
  font-size: 48px;
  margin-bottom: 8px;
}

/* ── ZIP Tree View ── */
.zip-preview-wrapper {
  width: 100%;
  padding: 16px;
}

.zip-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  background: var(--surface-lighter);
  border-radius: var(--radius-sm);
  margin-bottom: 12px;
  font-size: 0.85rem;
}

.zip-stats {
  font-weight: 600;
  color: var(--text);
}

.zip-size-total {
  color: var(--text-muted);
  font-size: 0.8rem;
}

.zip-tree {
  max-height: 300px;
  overflow-y: auto;
  padding: 8px;
  background: var(--surface-lighter);
  border-radius: var(--radius-sm);
}

.zip-entry {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  font-size: 0.82rem;
  border-bottom: 1px solid var(--border);
  transition: background var(--transition-fast);
}

.zip-entry:last-child {
  border-bottom: none;
}

.zip-entry:hover {
  background: var(--surface-light);
}

.zip-entry .zip-icon {
  font-size: 1rem;
}

.zip-entry .zip-name {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: var(--text);
  font-family: 'JetBrains Mono', monospace;
}

.zip-entry.dir .zip-name {
  color: var(--primary-light);
  font-weight: 600;
}

.zip-entry .zip-size {
  color: var(--text-muted);
  font-size: 0.75rem;
}

.zip-more {
  padding: 12px;
  text-align: center;
  font-size: 0.82rem;
  color: var(--text-muted);
  font-style: italic;
}

/* ── Text Preview ── */
.text-preview-wrapper {
  width: 100%;
  padding: 16px;
}

.text-preview-content {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.82rem;
  color: var(--text-secondary);
  white-space: pre-wrap;
  word-break: break-all;
  max-height: 300px;
  overflow: auto;
  line-height: 1.6;
  margin: 0;
  padding: 16px;
  background: var(--surface-lighter);
  border-radius: var(--radius-sm);
}

/* ── Keyboard Hint ── */
.keyboard-hint {
  position: fixed;
  bottom: 24px;
  left: 24px;
  padding: 10px 16px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 0.78rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 8px;
  z-index: 100;
}

.keyboard-hint kbd {
  padding: 2px 8px;
  background: var(--surface-lighter);
  border: 1px solid var(--border);
  border-radius: 4px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.72rem;
}

/* =============================================
   ENHANCED INTELLIGENCE STYLES V2
   ============================================= */

/* ── Intelligence Status Badge ── */
.intelligence-status {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-left: auto;
}

.intelligence-status .status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  animation: pulse 2s infinite;
}

.intelligence-status.verified {
  background: var(--safe-bg);
  color: var(--safe-color);
  border: 1px solid rgba(76,175,80,0.3);
}

.intelligence-status.verified .status-dot {
  background: var(--safe-color);
}

.intelligence-status.detected {
  background: rgba(124,77,255,0.1);
  color: var(--primary-light);
  border: 1px solid rgba(124,77,255,0.3);
}

.intelligence-status.detected .status-dot {
  background: var(--primary);
}

.intelligence-status.suspicious {
  background: var(--risky-bg);
  color: var(--risky-color);
  border: 1px solid rgba(239,83,80,0.3);
  animation: alertPulse 1.5s infinite;
}

.intelligence-status.suspicious .status-dot {
  background: var(--risky-color);
}

@keyframes alertPulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.7; }
}

/* ── BIG Mismatch Alert ── */
.mismatch-alert {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 20px;
  margin-bottom: 20px;
  background: linear-gradient(135deg, rgba(239,83,80,0.15), rgba(255,64,129,0.1));
  border: 2px solid var(--risky-color);
  border-radius: var(--radius);
  animation: shakeAttention 0.6s ease-in-out;
}

@keyframes shakeAttention {
  0%, 100% { transform: translateX(0); }
  10% { transform: translateX(-8px); }
  20% { transform: translateX(8px); }
  30% { transform: translateX(-6px); }
  40% { transform: translateX(6px); }
  50% { transform: translateX(-4px); }
  60% { transform: translateX(4px); }
  70% { transform: translateX(-2px); }
  80% { transform: translateX(2px); }
}

.mismatch-alert-icon {
  font-size: 2.5rem;
  flex-shrink: 0;
  animation: bounce 1s infinite;
}

@keyframes bounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-5px); }
}

.mismatch-alert-title {
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--risky-color);
  margin-bottom: 6px;
  letter-spacing: 0.02em;
}

.mismatch-alert-text {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ── Intelligence Output Grid ── */
.intel-output-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin-bottom: 16px;
  padding: 16px;
  background: var(--surface-light);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
}

.intel-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.intel-icon {
  font-size: 1.2rem;
}

.intel-label {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.intel-value {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 6px;
}

.intel-value .intel-status {
  font-size: 0.72rem;
  font-weight: 600;
  opacity: 0.8;
}

.intel-value.verified {
  color: var(--safe-color);
}

.intel-value.suspicious {
  color: var(--risky-color);
}

.intel-value.mismatch {
  color: var(--caution-color);
  text-decoration: line-through;
  opacity: 0.7;
}

/* ── Signature Display ── */
.signature-display {
  padding: 16px;
  background: var(--surface-light);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  margin-bottom: 16px;
}

.signature-header {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
}

.signature-icon {
  font-size: 1.1rem;
}

.signature-title {
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--text);
}

.signature-content {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.signature-row {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.85rem;
}

.sig-label {
  font-weight: 600;
  color: var(--text-secondary);
  min-width: 80px;
}

.sig-value {
  color: var(--text);
}

.sig-value.ascii {
  font-family: 'JetBrains Mono', monospace;
  font-weight: 700;
  color: var(--primary-light);
  padding: 2px 8px;
  background: rgba(124,77,255,0.1);
  border-radius: 4px;
}

.sig-value.hex {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.8rem;
  color: var(--text-muted);
  letter-spacing: 0.05em;
}

.sig-status {
  margin-left: auto;
  padding: 3px 10px;
  border-radius: var(--radius-full);
  font-size: 0.72rem;
  font-weight: 700;
}

.sig-status.valid {
  background: var(--safe-bg);
  color: var(--safe-color);
}

.sig-status.invalid {
  background: var(--risky-bg);
  color: var(--risky-color);
}

/* ── Score Factors Checklist ── */
.score-factors {
  margin: 16px 0;
  padding: 14px;
  background: var(--surface-light);
  border-radius: var(--radius-sm);
}

.factors-title {
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 10px;
}

.factors-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.factor-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.85rem;
  padding: 6px 10px;
  border-radius: 6px;
  transition: background var(--transition-fast);
}

.factor-item:hover {
  background: var(--surface-lighter);
}

.factor-icon {
  font-size: 1rem;
  width: 20px;
  text-align: center;
}

.factor-item.positive {
  color: var(--safe-color);
}

.factor-item.positive .factor-icon {
  color: var(--safe-color);
}

.factor-item.negative {
  color: var(--risky-color);
}

.factor-item.negative .factor-icon {
  color: var(--risky-color);
}

.factor-item.warning {
  color: var(--caution-color);
}

.factor-item.warning .factor-icon {
  color: var(--caution-color);
}

.factor-item.info {
  color: var(--text-secondary);
}

/* ── Enhanced Insights ── */
.insights-container {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.insights-summary {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 18px;
  border-radius: var(--radius-sm);
  font-weight: 600;
}

.insights-summary.safe {
  background: var(--safe-bg);
  border: 1px solid rgba(76,175,80,0.25);
  color: var(--safe-color);
}

.insights-summary.warning {
  background: var(--caution-bg);
  border: 1px solid rgba(255,179,0,0.25);
  color: var(--caution-color);
}

.insights-summary.critical {
  background: var(--risky-bg);
  border: 1px solid rgba(239,83,80,0.25);
  color: var(--risky-color);
  animation: alertPulse 1.5s infinite;
}

.summary-icon {
  font-size: 1.4rem;
}

.summary-text {
  flex: 1;
  font-size: 0.9rem;
}

.summary-count {
  font-size: 0.75rem;
  padding: 4px 10px;
  background: rgba(255,255,255,0.1);
  border-radius: var(--radius-full);
  opacity: 0.8;
}

.insight-badge {
  padding: 3px 10px;
  border-radius: var(--radius-full);
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-left: auto;
  flex-shrink: 0;
}

.insight-badge.danger {
  background: var(--risky-bg);
  color: var(--risky-color);
}

.insight-badge.warning {
  background: var(--caution-bg);
  color: var(--caution-color);
}

.insight-badge.info {
  background: rgba(124,77,255,0.1);
  color: var(--primary-light);
}

.insight-badge.success {
  background: var(--safe-bg);
  color: var(--safe-color);
}

.insights-meta {
  display: flex;
  gap: 8px;
  margin-left: auto;
}

.insight-stat {
  padding: 4px 10px;
  border-radius: var(--radius-full);
  font-size: 0.7rem;
  font-weight: 600;
}

.insight-stat.danger {
  background: var(--risky-bg);
  color: var(--risky-color);
}

.insight-stat.warning {
  background: var(--caution-bg);
  color: var(--caution-color);
}

.insight-stat.success {
  background: var(--safe-bg);
  color: var(--safe-color);
}

.insight-card {
  animation: slideInLeft 0.4s ease-out both;
}

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-20px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* ── Enhanced Actions ── */
.actions-container {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.action-category {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.category-label {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding-left: 4px;
}

.action-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 14px 12px;
  text-align: center;
}

.action-btn .action-label {
  font-size: 0.78rem;
  line-height: 1.3;
}

.action-btn .action-icon {
  font-size: 1.4rem;
}

/* ── Card enhancements ── */
.intelligence-card {
  border: 2px solid transparent;
  background: linear-gradient(var(--surface), var(--surface)) padding-box,
              linear-gradient(135deg, var(--primary), var(--accent-cyan)) border-box;
}

.security-card,
.insights-card,
.actions-card {
  overflow: hidden;
}

/* ── Loading enhancement ── */
.loading-overlay {
  background: rgba(13,14,18,0.95);
}

.loading-overlay.active {
  animation: fadeInFast 0.15s ease-out;
}

@keyframes fadeInFast {
  from { opacity: 0; }
  to { opacity: 1; }
}

/* ── Responsive adjustments ── */
@media (max-width: 768px) {
  .intel-output-grid {
    grid-template-columns: 1fr;
  }
  
  .mismatch-alert {
    flex-direction: column;
    text-align: center;
  }
  
  .insights-meta {
    display: none;
  }
  
  .signature-row {
    flex-wrap: wrap;
  }
  
  .sig-status {
    margin-left: 0;
    margin-top: 4px;
  }
}

/* =============================================
   FILE ASSISTANT MODE STYLES
   ============================================= */

/* ── Key Finding Card (MOST IMPORTANT) ── */
.key-finding-card {
  margin-bottom: 8px;
}

.key-finding {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  padding: 24px;
  border-radius: var(--radius);
  animation: slideInDown 0.5s ease-out;
}

@keyframes slideInDown {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.key-finding.finding-danger {
  background: linear-gradient(135deg, rgba(239,83,80,0.2), rgba(255,64,129,0.1));
  border: 2px solid var(--risky-color);
}

.key-finding.finding-warning {
  background: linear-gradient(135deg, rgba(255,179,0,0.15), rgba(255,152,0,0.1));
  border: 2px solid var(--caution-color);
}

.key-finding.finding-info {
  background: linear-gradient(135deg, rgba(124,77,255,0.15), rgba(0,229,255,0.1));
  border: 2px solid var(--primary);
}

.key-finding.finding-success {
  background: linear-gradient(135deg, rgba(76,175,80,0.15), rgba(0,229,255,0.1));
  border: 2px solid var(--safe-color);
}

.finding-icon {
  font-size: 2.8rem;
  flex-shrink: 0;
  animation: pulse 2s infinite;
}

.finding-content {
  flex: 1;
}

.finding-title {
  font-size: 1.25rem;
  font-weight: 800;
  margin-bottom: 8px;
  line-height: 1.3;
}

.finding-danger .finding-title {
  color: var(--risky-color);
}

.finding-warning .finding-title {
  color: var(--caution-color);
}

.finding-info .finding-title {
  color: var(--primary-light);
}

.finding-success .finding-title {
  color: var(--safe-color);
}

.finding-message {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 12px;
}

.finding-message strong {
  color: var(--text);
  font-weight: 700;
}

.finding-action {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text);
  padding: 10px 16px;
  background: rgba(255,255,255,0.05);
  border-radius: var(--radius-sm);
  border-left: 3px solid currentColor;
}

.finding-danger .finding-action {
  border-color: var(--risky-color);
}

.finding-warning .finding-action {
  border-color: var(--caution-color);
}

.finding-info .finding-action {
  border-color: var(--primary);
}

.finding-success .finding-action {
  border-color: var(--safe-color);
}

.action-arrow {
  font-weight: 700;
  opacity: 0.7;
}

/* ── Smart Summary Card ── */
.smart-summary-card {
  margin-bottom: 8px;
}

.smart-summary {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px;
  background: var(--surface-light);
  border-radius: var(--radius-sm);
}

.summary-file-icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  font-size: 1.8rem;
  flex-shrink: 0;
}

.summary-text-wrapper {
  flex: 1;
  min-width: 0;
}

.summary-filename {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 6px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.summary-sentence {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.summary-sentence strong {
  color: var(--text);
  font-weight: 700;
}

.summary-safe {
  color: var(--safe-color);
  font-weight: 600;
}

.summary-caution {
  color: var(--caution-color);
  font-weight: 600;
}

.summary-risky {
  color: var(--risky-color);
  font-weight: 600;
}

/* ── Recommendation Card ── */
.recommendation-card {
  margin-bottom: 8px;
}

.recommendations-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.recommendation-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 16px;
  background: var(--surface-light);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  transition: var(--transition);
}

.recommendation-item:hover {
  background: var(--surface-lighter);
  border-color: var(--primary);
}

.recommendation-item.primary {
  background: linear-gradient(135deg, rgba(124,77,255,0.1), rgba(0,229,255,0.05));
  border: 2px solid var(--primary);
}

.rec-icon {
  font-size: 1.6rem;
  flex-shrink: 0;
}

.rec-content {
  flex: 1;
}

.rec-action {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 4px;
}

.rec-detail {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.rec-badge {
  padding: 4px 12px;
  background: var(--primary);
  color: #fff;
  border-radius: var(--radius-full);
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  flex-shrink: 0;
  align-self: center;
}

/* ── Risk Message ── */
.risk-message {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 18px;
  border-radius: var(--radius-sm);
  margin-bottom: 16px;
  font-weight: 600;
  font-size: 0.95rem;
}

.risk-message.safe {
  background: var(--safe-bg);
  color: var(--safe-color);
  border: 1px solid rgba(76,175,80,0.3);
}

.risk-message.caution {
  background: var(--caution-bg);
  color: var(--caution-color);
  border: 1px solid rgba(255,179,0,0.3);
}

.risk-message.risky {
  background: var(--risky-bg);
  color: var(--risky-color);
  border: 1px solid rgba(239,83,80,0.3);
  animation: alertPulse 2s infinite;
}

.risk-icon {
  font-size: 1.3rem;
}

.risk-text {
  flex: 1;
}

/* ── Technical Details Card (Collapsible) ── */
.technical-card {
  margin-top: 8px;
}

.technical-section {
  margin-bottom: 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.technical-section summary {
  padding: 14px 16px;
  background: var(--surface-light);
  cursor: pointer;
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--text);
  transition: background var(--transition-fast);
  list-style: none;
  display: flex;
  align-items: center;
  gap: 8px;
}

.technical-section summary::-webkit-details-marker {
  display: none;
}

.technical-section summary::after {
  content: '▶';
  margin-left: auto;
  font-size: 0.7rem;
  color: var(--text-muted);
  transition: transform var(--transition-fast);
}

.technical-section[open] summary::after {
  transform: rotate(90deg);
}

.technical-section summary:hover {
  background: var(--surface-lighter);
}

.technical-section .data-rows {
  padding: 12px 16px;
  background: var(--surface);
}

.technical-section .guidance-content {
  padding: 16px;
}

.technical-section .guidance-content p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 12px;
}

.collapse-hint {
  margin-left: auto;
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--text-muted);
  background: var(--surface-light);
  padding: 4px 10px;
  border-radius: var(--radius-full);
}

/* ── Insight Message Enhancement ── */
.insight-card .insight-content p {
  line-height: 1.6;
}

.insight-card .insight-content p strong {
  font-weight: 700;
  color: var(--text);
}

/* ── Responsive for Assistant Mode ── */
@media (max-width: 768px) {
  .key-finding {
    flex-direction: column;
    text-align: center;
    padding: 20px;
  }
  
  .finding-icon {
    font-size: 2.2rem;
  }
  
  .finding-title {
    font-size: 1.1rem;
  }
  
  .finding-action {
    justify-content: center;
  }
  
  .smart-summary {
    flex-direction: column;
    text-align: center;
  }
  
  .summary-filename {
    white-space: normal;
  }
  
  .recommendation-item {
    flex-direction: column;
  }
  
  .rec-badge {
    align-self: flex-start;
  }
}