@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

:root {
  --bg-primary: #0a0a0f;
  --bg-secondary: #12121a;
  --bg-card: #1a1a2e;
  --bg-card-hover: #222240;
  --accent: #6c63ff;
  --accent-glow: rgba(108, 99, 255, 0.3);
  --accent2: #00d4aa;
  --accent3: #ff6b6b;
  --text-primary: #e8e8f0;
  --text-secondary: #9898b0;
  --text-muted: #6a6a80;
  --border: rgba(255,255,255,0.06);
  --border-active: rgba(108,99,255,0.4);
  --warning: #ffa726;
  --danger: #ef5350;
  --success: #66bb6a;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 8px 32px rgba(0,0,0,0.4);
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', -apple-system, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  min-height: 100vh;
  overflow-x: hidden;
}

/* Scrollbar */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb { background: var(--accent); border-radius: 3px; }

/* ===== SIDEBAR ===== */
.sidebar {
  position: fixed; top: 0; left: 0;
  width: 280px; height: 100vh;
  background: var(--bg-secondary);
  border-right: 1px solid var(--border);
  z-index: 100;
  display: flex; flex-direction: column;
  transition: transform var(--transition);
}

.sidebar-header {
  padding: 24px 20px;
  border-bottom: 1px solid var(--border);
  background: linear-gradient(135deg, rgba(108,99,255,0.1), rgba(0,212,170,0.05));
}

.sidebar-header h1 {
  font-size: 1.3rem; font-weight: 800;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  letter-spacing: -0.5px;
}

.sidebar-header p {
  font-size: 0.75rem; color: var(--text-muted); margin-top: 4px;
}

.sidebar-nav {
  flex: 1; overflow-y: auto; padding: 12px 0;
}

.nav-item {
  display: flex; align-items: center; gap: 12px;
  padding: 12px 20px; cursor: pointer;
  color: var(--text-secondary);
  font-size: 0.88rem; font-weight: 500;
  transition: all var(--transition);
  border-left: 3px solid transparent;
  text-decoration: none;
}

.nav-item:hover {
  background: rgba(108,99,255,0.08);
  color: var(--text-primary);
}

.nav-item.active {
  background: rgba(108,99,255,0.12);
  color: var(--accent);
  border-left-color: var(--accent);
}

.nav-item .icon { font-size: 1.15rem; width: 24px; text-align: center; }

.nav-divider {
  height: 1px; background: var(--border);
  margin: 8px 20px;
}

/* ===== MAIN ===== */
.main {
  margin-left: 280px;
  min-height: 100vh;
}

.topbar {
  position: sticky; top: 0; z-index: 50;
  background: rgba(10,10,15,0.85);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  padding: 16px 32px;
  display: flex; align-items: center; justify-content: space-between;
}

.topbar h2 {
  font-size: 1.1rem; font-weight: 700;
}

.search-box {
  position: relative; width: 320px;
}

.search-box input {
  width: 100%; padding: 10px 16px 10px 40px;
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius-sm); color: var(--text-primary);
  font-size: 0.85rem; font-family: inherit;
  outline: none; transition: border var(--transition);
}

.search-box input:focus { border-color: var(--accent); }

.search-box::before {
  content: '🔍'; position: absolute;
  left: 14px; top: 50%; transform: translateY(-50%);
  font-size: 0.85rem;
}

.content {
  padding: 32px;
  max-width: 960px;
}

/* ===== SECTIONS ===== */
.section {
  display: none;
  animation: fadeIn 0.4s ease;
}

.section.active { display: block; }

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ===== CARDS ===== */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  margin-bottom: 24px;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--accent2));
  opacity: 0; transition: opacity var(--transition);
}

.card:hover {
  border-color: var(--border-active);
  box-shadow: var(--shadow);
}

.card:hover::before { opacity: 1; }

.card h3 {
  font-size: 1.15rem; font-weight: 700;
  margin-bottom: 16px;
  display: flex; align-items: center; gap: 10px;
}

.card h3 .badge {
  font-size: 0.65rem; font-weight: 600;
  padding: 3px 10px; border-radius: 20px;
  background: rgba(108,99,255,0.15);
  color: var(--accent);
  text-transform: uppercase; letter-spacing: 0.5px;
}

.card p, .card li {
  color: var(--text-secondary);
  font-size: 0.9rem; line-height: 1.8;
}

.card ul, .card ol {
  padding-left: 20px; margin: 12px 0;
}

.card li { margin-bottom: 6px; }

/* ===== ALERTS ===== */
.alert {
  padding: 16px 20px;
  border-radius: var(--radius-sm);
  margin: 16px 0;
  font-size: 0.85rem;
  border-left: 4px solid;
}

.alert-warning {
  background: rgba(255,167,38,0.08);
  border-color: var(--warning);
  color: #ffcc80;
}

.alert-danger {
  background: rgba(239,83,80,0.08);
  border-color: var(--danger);
  color: #ef9a9a;
}

.alert-success {
  background: rgba(102,187,106,0.08);
  border-color: var(--success);
  color: #a5d6a7;
}

.alert-info {
  background: rgba(108,99,255,0.08);
  border-color: var(--accent);
  color: #b3aeff;
}

/* ===== STEPS ===== */
.step {
  display: flex; gap: 16px;
  margin-bottom: 20px;
}

.step-num {
  width: 36px; height: 36px; flex-shrink: 0;
  background: linear-gradient(135deg, var(--accent), #8b5cf6);
  border-radius: 50%; display: flex;
  align-items: center; justify-content: center;
  font-weight: 700; font-size: 0.85rem;
}

.step-content { flex: 1; }
.step-content h4 { font-size: 0.95rem; margin-bottom: 6px; }
.step-content p { color: var(--text-secondary); font-size: 0.88rem; }

/* ===== LINKS ===== */
a.ext-link {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px dashed rgba(108,99,255,0.4);
  transition: all var(--transition);
  word-break: break-all;
}

a.ext-link:hover {
  color: var(--accent2);
  border-bottom-color: var(--accent2);
}

/* ===== MEDIA ===== */
.media-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 16px; margin: 16px 0;
}

.media-item {
  background: var(--bg-secondary);
  border-radius: var(--radius-sm);
  overflow: hidden;
  border: 1px solid var(--border);
  transition: all var(--transition);
}

.media-item:hover {
  border-color: var(--border-active);
  transform: translateY(-2px);
}

.media-item img, .media-item video {
  width: 100%; display: block;
  aspect-ratio: 9/16; object-fit: cover;
}

.media-item .caption {
  padding: 10px 12px;
  font-size: 0.78rem;
  color: var(--text-secondary);
}

.photo-inline {
  max-width: 100%;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  margin: 12px 0;
}

/* ===== TAGS ===== */
.tag {
  display: inline-block;
  padding: 4px 12px; margin: 3px;
  background: rgba(108,99,255,0.1);
  border: 1px solid rgba(108,99,255,0.2);
  border-radius: 20px;
  font-size: 0.75rem; color: var(--accent);
}

/* ===== INFO BOX ===== */
.info-box {
  background: rgba(0,212,170,0.06);
  border: 1px solid rgba(0,212,170,0.15);
  border-radius: var(--radius-sm);
  padding: 16px 20px;
  margin: 16px 0;
}

.info-box h4 {
  color: var(--accent2);
  font-size: 0.9rem; margin-bottom: 8px;
}

/* ===== AUTHOR META ===== */
.meta {
  display: flex; gap: 16px; flex-wrap: wrap;
  margin-bottom: 12px;
  font-size: 0.78rem; color: var(--text-muted);
}

.meta span { display: flex; align-items: center; gap: 4px; }

/* ===== HAMBURGER ===== */
.hamburger {
  display: none; cursor: pointer;
  background: none; border: none;
  color: var(--text-primary); font-size: 1.5rem;
}

/* ===== OVERLAY ===== */
.overlay {
  display: none; position: fixed;
  inset: 0; background: rgba(0,0,0,0.6);
  z-index: 90;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  .sidebar { transform: translateX(-100%); }
  .sidebar.open { transform: translateX(0); }
  .overlay.open { display: block; }
  .main { margin-left: 0; }
  .hamburger { display: block; }
  .content { padding: 20px 16px; }
  .search-box { width: 200px; }
  .topbar { padding: 12px 16px; }
}

/* ===== HERO ===== */
.hero {
  text-align: center;
  padding: 48px 20px;
  background: linear-gradient(135deg, rgba(108,99,255,0.08), rgba(0,212,170,0.04));
  border-radius: var(--radius);
  border: 1px solid var(--border);
  margin-bottom: 32px;
}

.hero h2 {
  font-size: 2rem; font-weight: 800;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  margin-bottom: 12px;
}

.hero p { color: var(--text-secondary); max-width: 600px; margin: 0 auto; }

.stats-row {
  display: flex; justify-content: center; gap: 32px;
  margin-top: 24px; flex-wrap: wrap;
}

.stat {
  text-align: center;
}

.stat .num {
  font-size: 1.8rem; font-weight: 800; color: var(--accent);
}

.stat .label {
  font-size: 0.75rem; color: var(--text-muted); text-transform: uppercase;
  letter-spacing: 1px;
}

/* Quick-nav cards */
.quick-nav {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 16px; margin-top: 32px;
}

.quick-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px 20px;
  cursor: pointer;
  transition: all var(--transition);
  text-align: center;
}

.quick-card:hover {
  border-color: var(--border-active);
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}

.quick-card .qicon { font-size: 2rem; margin-bottom: 12px; }
.quick-card h4 { font-size: 0.95rem; margin-bottom: 6px; }
.quick-card p { font-size: 0.78rem; color: var(--text-muted); }

/* Code-like blocks */
.code-block {
  background: rgba(0,0,0,0.3);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 16px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.82rem;
  color: var(--accent2);
  margin: 12px 0;
  overflow-x: auto;
}

/* Timeline */
.timeline-item {
  border-left: 2px solid var(--border);
  padding: 0 0 24px 24px;
  position: relative;
  margin-left: 8px;
}

.timeline-item::before {
  content: '';
  position: absolute; left: -5px; top: 4px;
  width: 8px; height: 8px;
  background: var(--accent);
  border-radius: 50%;
}

.timeline-item .tdate {
  font-size: 0.75rem; color: var(--text-muted);
  margin-bottom: 6px;
}

/* Contradictions highlight */
.contradiction {
  background: rgba(239,83,80,0.06);
  border: 1px solid rgba(239,83,80,0.2);
  border-radius: var(--radius-sm);
  padding: 16px 20px;
  margin: 16px 0;
}

.contradiction h4 {
  color: var(--danger); font-size: 0.9rem;
  margin-bottom: 8px;
  display: flex; align-items: center; gap: 8px;
}

/* Data tables */
.data-table {
  width: 100%; border-collapse: collapse;
  margin: 16px 0; font-size: 0.85rem;
}
.data-table th, .data-table td {
  padding: 10px 14px;
  border: 1px solid var(--border);
  text-align: left;
}
.data-table th {
  background: rgba(108,99,255,0.1);
  color: var(--accent);
  font-weight: 600;
}
.data-table td { color: var(--text-secondary); }
.data-table tr:hover td { background: rgba(108,99,255,0.04); }

/* Text summary */
.text-summary {
  background: rgba(0,212,170,0.06);
  border-left: 3px solid var(--accent2);
  padding: 12px 16px;
  margin: 12px 0;
  font-size: 0.85rem;
  color: var(--text-secondary);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

/* Media blocks */
.media-block {
  margin: 16px 0;
  position: relative;
}
.media-caption {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-top: 6px;
  font-style: italic;
}
.dur {
  display: inline-block;
  font-size: 0.72rem;
  color: var(--text-muted);
  margin-top: 4px;
}

/* Code inline */
code {
  background: rgba(108,99,255,0.12);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.82rem;
  color: var(--accent);
  font-family: 'JetBrains Mono', monospace;
}

/* Card text improvements */
.card h4 { margin: 18px 0 10px; font-size: 1rem; }
.card h5 { margin: 14px 0 8px; font-size: 0.92rem; color: var(--accent2); }