:root {
  --bg: #F8F9FC;
  --card: #FFFFFF;
  --accent: #6C3BFF;
  --accent-light: #EDE9FE;
  --accent-glow: rgba(108, 59, 255, 0.06);
  --secondary: #2ED3B7;
  --text: #1A1A2E;
  --text-dim: rgba(0, 0, 0, 0.6);
  --text-muted: #6B7280;
  --border: #E8E8F0;
  --border-subtle: rgba(0, 0, 0, 0.06);
  --success: #10b981;
  --danger: #DC2626;
  --warning: #f59e0b;
  --info: #3b82f6;
  --gradient: linear-gradient(135deg, rgba(108,59,255,0.04), rgba(46,211,183,0.04));
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg); color: var(--text); line-height: 1.7;
  -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale;
}

/* Gate */
#gate {
  position: fixed; inset: 0; z-index: 9999; background: var(--bg);
  display: flex; align-items: center; justify-content: center;
  transition: opacity 0.5s ease, visibility 0.5s ease;
}
#gate.hidden { opacity: 0; visibility: hidden; pointer-events: none; }
.gate-card {
  background: var(--card); border: 1px solid var(--border); border-radius: 16px;
  padding: 48px 40px; max-width: 420px; width: 90%; text-align: center;
  box-shadow: 0 4px 24px rgba(0,0,0,0.06);
}
.gate-logo { font-size: 13px; letter-spacing: 4px; text-transform: uppercase; color: var(--accent); margin-bottom: 32px; font-weight: 600; }
.gate-title { font-size: 22px; font-weight: 600; color: var(--text); margin-bottom: 8px; }
.gate-subtitle { font-size: 14px; color: var(--text-muted); margin-bottom: 32px; }
.gate-input {
  width: 100%; padding: 14px 18px; background: var(--bg); border: 1px solid var(--border);
  border-radius: 8px; color: var(--text); font-size: 15px; font-family: inherit; outline: none;
  transition: border-color 0.2s;
}
.gate-input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-glow); }
.gate-input::placeholder { color: var(--text-muted); }
.gate-btn {
  width: 100%; padding: 14px; margin-top: 16px;
  background: var(--accent); color: #fff; border: none; border-radius: 8px;
  font-size: 15px; font-weight: 600; font-family: inherit; cursor: pointer;
  transition: transform 0.15s, box-shadow 0.15s;
}
.gate-btn:hover { transform: translateY(-1px); box-shadow: 0 4px 16px rgba(108,59,255,0.25); }
.gate-error { color: var(--danger); font-size: 13px; margin-top: 12px; min-height: 20px; }
.gate-nda { font-size: 11px; color: var(--text-muted); margin-top: 24px; line-height: 1.5; }

/* Content */
#content { display: none; max-width: 960px; margin: 0 auto; padding: 48px 32px 96px; }
#content.visible { display: block; }

/* Page Nav */
.page-nav {
  display: flex; gap: 4px; padding: 6px; margin-bottom: 40px;
  background: var(--card); border: 1px solid var(--border); border-radius: 12px;
  box-shadow: 0 1px 3px rgba(0,0,0,0.03);
}
.page-nav a {
  flex: 1; padding: 10px 16px; border-radius: 8px; text-decoration: none;
  font-size: 13px; font-weight: 600; letter-spacing: 0.3px; color: var(--text-muted);
  text-align: center; transition: background 0.15s, color 0.15s;
}
.page-nav a:hover { color: var(--text); background: var(--accent-glow); }
.page-nav a.active { color: #fff; background: var(--accent); box-shadow: 0 2px 8px rgba(108,59,255,0.25); }

/* Header */
.doc-header { border-bottom: 1px solid var(--border); padding-bottom: 40px; margin-bottom: 48px; }
.doc-header-top { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 32px; }
.brand { font-size: 12px; letter-spacing: 3px; text-transform: uppercase; color: var(--accent); font-weight: 600; }
.classification {
  display: inline-flex; align-items: center; gap: 6px; padding: 6px 14px;
  border: 1px solid rgba(220,38,38,0.2); border-radius: 6px; background: rgba(220,38,38,0.04);
  font-size: 11px; letter-spacing: 1px; text-transform: uppercase; color: var(--danger); font-weight: 600;
}
.doc-title {
  font-size: 36px; font-weight: 700; line-height: 1.2; margin-bottom: 8px;
  background: linear-gradient(135deg, var(--text), var(--accent));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.doc-subtitle { font-size: 18px; color: var(--text-muted); font-weight: 400; margin-bottom: 24px; }
.doc-meta { display: flex; gap: 32px; flex-wrap: wrap; }
.doc-meta-item { font-size: 13px; }
.doc-meta-label { color: var(--text-muted); margin-right: 6px; }
.doc-meta-value { color: var(--text-dim); }

/* Sections */
.section { margin-bottom: 56px; }
.section-number { font-size: 12px; letter-spacing: 2px; text-transform: uppercase; color: var(--accent); font-weight: 600; margin-bottom: 8px; }
.section h2 { font-size: 26px; font-weight: 700; color: var(--text); margin-bottom: 20px; line-height: 1.3; }
.section h3 { font-size: 18px; font-weight: 600; color: var(--text); margin-bottom: 12px; margin-top: 32px; }
.section p { color: var(--text-dim); margin-bottom: 16px; font-size: 15px; }
.section ul { margin: 12px 0 16px 20px; color: var(--text-dim); font-size: 15px; }
.section ul li { margin-bottom: 6px; line-height: 1.6; }
.section ul li strong { color: var(--text); }

/* Pitch Box */
.pitch-box {
  background: var(--gradient); border: 1px solid var(--border);
  border-left: 3px solid var(--accent); border-radius: 12px;
  padding: 28px 32px; margin-bottom: 24px;
}
.pitch-box p { font-size: 16px; color: var(--text); line-height: 1.8; }
.pitch-box strong { color: var(--accent); }

/* Speaker Notes */
.speaker-note {
  background: var(--accent-glow); border: 1px solid rgba(108,59,255,0.1); border-radius: 8px;
  padding: 16px 20px; margin: 16px 0; font-size: 13px; color: var(--text-dim); line-height: 1.6;
}
.speaker-note::before { content: 'NOTE'; display: block; font-size: 10px; letter-spacing: 1.5px; color: var(--accent); font-weight: 700; margin-bottom: 6px; }
.speaker-note strong { color: var(--text); }

/* Tables */
.table-wrapper { overflow-x: auto; margin: 20px 0; border-radius: 10px; border: 1px solid var(--border); background: var(--card); }
table { width: 100%; border-collapse: collapse; font-size: 14px; font-family: 'JetBrains Mono', 'SF Mono', monospace; }
thead { background: var(--gradient); }
th { padding: 12px 16px; text-align: left; font-weight: 600; font-size: 11px; letter-spacing: 0.5px; text-transform: uppercase; color: var(--accent); border-bottom: 1px solid var(--border); white-space: nowrap; font-family: 'Inter', sans-serif; }
td { padding: 11px 16px; border-bottom: 1px solid var(--border-subtle); color: var(--text-dim); font-size: 13px; }
tr:last-child td { border-bottom: none; }
tbody tr:hover { background: rgba(108,59,255,0.02); }
td strong { color: var(--text); font-weight: 600; font-family: 'Inter', sans-serif; }
.val-accent { color: var(--accent); font-weight: 600; }
.val-success { color: var(--success); font-weight: 600; }
.val-danger { color: var(--danger); font-weight: 600; }
.total-row td { font-weight: 700; color: var(--accent); border-top: 1px solid var(--border); background: var(--accent-glow); }

/* Stats Grid */
.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 16px; margin: 24px 0; }
.stat-card { background: var(--card); border: 1px solid var(--border); border-radius: 10px; padding: 20px; text-align: center; box-shadow: 0 1px 3px rgba(0,0,0,0.03); }
.stat-value { font-size: 28px; font-weight: 700; color: var(--accent); line-height: 1.2; font-family: 'JetBrains Mono', monospace; }
.stat-label { font-size: 12px; color: var(--text-muted); margin-top: 6px; text-transform: uppercase; letter-spacing: 0.5px; }

/* Model Category */
.model-category { margin-top: 32px; }
.model-category-header { display: flex; align-items: center; gap: 10px; margin-bottom: 16px; }
.model-category-badge { display: inline-flex; align-items: center; justify-content: center; width: 28px; height: 28px; background: var(--accent-glow); border: 1px solid rgba(108,59,255,0.15); border-radius: 6px; font-size: 13px; font-weight: 700; color: var(--accent); font-family: 'JetBrains Mono', monospace; }
.model-category-title { font-size: 16px; font-weight: 600; color: var(--text); }

/* Flow */
.flow { display: flex; flex-direction: column; gap: 0; margin: 24px 0; padding: 24px; background: var(--card); border: 1px solid var(--border); border-radius: 10px; box-shadow: 0 1px 3px rgba(0,0,0,0.03); }
.flow-step { display: flex; align-items: center; gap: 16px; padding: 10px 0; }
.flow-icon { width: 36px; height: 36px; border-radius: 8px; background: var(--accent-glow); border: 1px solid rgba(108,59,255,0.15); display: flex; align-items: center; justify-content: center; font-size: 14px; flex-shrink: 0; color: var(--accent); font-weight: 700; font-family: 'JetBrains Mono', monospace; }
.flow-text { font-size: 14px; color: var(--text-dim); }
.flow-text strong { color: var(--text); }
.flow-arrow { width: 36px; text-align: center; color: var(--text-muted); font-size: 12px; }

/* Comparison */
.vs-row td:nth-child(2) { color: var(--text-muted); }
.vs-row td:nth-child(3) { color: var(--accent); font-weight: 600; }

/* Bounds */
.bounds-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 12px; margin: 16px 0; }
.bound-card { background: var(--card); border: 1px solid var(--border); border-radius: 8px; padding: 16px; text-align: center; box-shadow: 0 1px 3px rgba(0,0,0,0.03); }
.bound-value { font-size: 20px; font-weight: 700; color: var(--danger); font-family: 'JetBrains Mono', monospace; }
.bound-label { font-size: 11px; color: var(--text-muted); margin-top: 4px; }

/* Diagram wrapper */
.diagram-wrapper {
  background: var(--card); border: 1px solid var(--border); border-radius: 12px;
  padding: 24px; margin: 24px 0; box-shadow: 0 1px 3px rgba(0,0,0,0.03);
  overflow-x: auto;
}
.diagram-wrapper svg { display: block; width: 100%; height: auto; max-width: 900px; margin: 0 auto; }
.diagram-legend {
  display: flex; gap: 24px; flex-wrap: wrap; justify-content: center;
  margin-top: 16px; padding-top: 16px; border-top: 1px solid var(--border-subtle);
  font-size: 12px; color: var(--text-muted);
}
.diagram-legend span { display: inline-flex; align-items: center; gap: 8px; }
.diagram-legend i { display: inline-block; width: 16px; height: 2px; background: var(--accent); }
.diagram-legend i.dashed { background: transparent; border-top: 2px dashed var(--secondary); height: 0; }

/* Security-page specific: pill grid for compliance/standards */
.pill-grid { display: flex; flex-wrap: wrap; gap: 8px; margin: 16px 0 24px; }
.pill {
  display: inline-flex; align-items: center; padding: 6px 14px;
  background: var(--accent-glow); border: 1px solid rgba(108,59,255,0.15);
  border-radius: 999px; font-size: 12px; font-weight: 600; color: var(--accent);
  letter-spacing: 0.3px; font-family: 'JetBrains Mono', monospace;
}

/* References */
.references { list-style: none; counter-reset: ref; }
.references li { counter-increment: ref; padding: 8px 0; border-bottom: 1px solid var(--border-subtle); font-size: 13px; color: var(--text-dim); line-height: 1.5; }
.references li::before { content: counter(ref) "."; color: var(--accent); font-weight: 600; margin-right: 8px; font-size: 12px; }

/* Footer */
.doc-footer { margin-top: 64px; padding-top: 32px; border-top: 1px solid var(--border); text-align: center; }
.doc-footer p { font-size: 12px; color: var(--text-muted); line-height: 1.6; }

@media (max-width: 640px) {
  #content { padding: 24px 16px 64px; }
  .doc-title { font-size: 26px; }
  .doc-header-top { flex-direction: column; gap: 16px; }
  .doc-meta { gap: 16px; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .bounds-grid { grid-template-columns: repeat(2, 1fr); }
  table { font-size: 12px; }
  th, td { padding: 8px 10px; }
  .page-nav { flex-direction: column; gap: 2px; }
}
@media print {
  #gate { display: none !important; }
  #content { display: block !important; }
  .page-nav { display: none !important; }
}