/* ============================================================
   AETHERPEDIA — STYLES
   Structure:
   1. CSS Custom Properties (tokens)
   2. Reset & Base
   3. Typography
   4. Utilities
   5. Layout (page wrapper, sidebar, main)
   6. Navigation
   7. Search
   8. Hero
   9. Sections & Cards
   10. Category Grid
   11. Trending & Recent Lists
   12. Article View
   13. Footer
   14. Animations & Transitions
   15. Responsive
   16. Accessibility / Reduced Motion
   ============================================================ */

/* ============================================================
   1. CSS CUSTOM PROPERTIES
   ============================================================ */
:root {
  /* Colors */
  --color-bg:          #0c0e14;
  --color-surface:     #13161f;
  --color-surface-2:   #1a1e2c;
  --color-surface-3:   #222636;
  --color-border:      rgba(255,255,255,0.07);
  --color-border-strong: rgba(255,255,255,0.14);

  --color-accent:      #5eead4;   /* teal-cyan */
  --color-accent-rgb:  94,234,212;
  --color-accent-2:    #a78bfa;   /* violet */
  --color-accent-2-rgb:167,139,250;
  --color-accent-dim:  rgba(94,234,212,0.12);
  --color-accent-2-dim:rgba(167,139,250,0.12);

  --color-text:        #e2e8f0;
  --color-text-secondary: #94a3b8;
  --color-muted:       #4b5563;

  --color-badge-lore:      #3b82f6;
  --color-badge-characters:#8b5cf6;
  --color-badge-factions:  #ef4444;
  --color-badge-magic:     #06b6d4;
  --color-badge-world:     #22c55e;
  --color-badge-history:   #f59e0b;
  --color-badge-artifacts: #ec4899;
  --color-badge-creatures: #f97316;

  /* Spacing */
  --space-1:  4px;
  --space-2:  8px;
  --space-3:  12px;
  --space-4:  16px;
  --space-5:  20px;
  --space-6:  24px;
  --space-8:  32px;
  --space-10: 40px;
  --space-12: 48px;
  --space-16: 64px;

  /* Border radius */
  --radius-sm:  6px;
  --radius-md:  12px;
  --radius-lg:  18px;
  --radius-xl:  24px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm:  0 1px 3px rgba(0,0,0,0.4);
  --shadow-md:  0 4px 16px rgba(0,0,0,0.5);
  --shadow-lg:  0 12px 40px rgba(0,0,0,0.6);
  --shadow-accent: 0 0 24px rgba(94,234,212,0.2);
  --shadow-accent-2: 0 0 24px rgba(167,139,250,0.2);

  /* Typography */
  --font-sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: "SF Mono", "Fira Code", "Cascadia Code", Consolas, monospace;

  /* Transitions */
  --transition-fast:   150ms ease;
  --transition-base:   250ms ease;
  --transition-slow:   400ms ease;

  /* Layout */
  --sidebar-width:     240px;
  --nav-height:        60px;
  --content-max:       1200px;
}

/* ============================================================
   2. RESET & BASE
   ============================================================ */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
}

img {
  display: block;
  max-width: 100%;
  height: auto;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  cursor: pointer;
  border: none;
  background: none;
  font-family: inherit;
  font-size: inherit;
  color: inherit;
}

ul, ol {
  list-style: none;
}

input, button, textarea, select {
  font: inherit;
  color: inherit;
}

/* ============================================================
   3. TYPOGRAPHY
   ============================================================ */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-text);
}

h1 { font-size: clamp(2rem, 5vw, 3.25rem); }
h2 { font-size: clamp(1.25rem, 3vw, 1.75rem); }
h3 { font-size: 1.1rem; }
h4 { font-size: 0.9rem; text-transform: uppercase; letter-spacing: 0.08em; }

p { line-height: 1.7; color: var(--color-text-secondary); }

/* ============================================================
   4. UTILITIES
   ============================================================ */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

.icon-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  color: var(--color-text-secondary);
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.icon-btn:hover,
.icon-btn:focus-visible {
  background-color: var(--color-surface-2);
  color: var(--color-text);
}

.icon-btn:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

/* Badge */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 10px;
  border-radius: var(--radius-full);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.badge--lore       { background: rgba(59,130,246,0.15);  color:#93c5fd; }
.badge--characters { background: rgba(139,92,246,0.15); color:#c4b5fd; }
.badge--factions   { background: rgba(239,68,68,0.15);  color:#fca5a5; }
.badge--magic      { background: rgba(6,182,212,0.15);  color:#67e8f9; }
.badge--world      { background: rgba(34,197,94,0.15);  color:#86efac; }
.badge--history    { background: rgba(245,158,11,0.15); color:#fcd34d; }
.badge--artifacts  { background: rgba(236,72,153,0.15); color:#f9a8d4; }
.badge--creatures  { background: rgba(249,115,22,0.15); color:#fdba74; }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 10px 22px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 600;
  transition: all var(--transition-base);
  cursor: pointer;
  border: none;
}

.btn--primary {
  background: var(--color-accent);
  color: #0c0e14;
}

.btn--primary:hover,
.btn--primary:focus-visible {
  box-shadow: 0 0 0 3px rgba(var(--color-accent-rgb), 0.35), 0 4px 16px rgba(var(--color-accent-rgb), 0.3);
  transform: translateY(-1px);
}

.btn--ghost {
  background: transparent;
  color: var(--color-text-secondary);
  border: 1px solid var(--color-border-strong);
}

.btn--ghost:hover,
.btn--ghost:focus-visible {
  background: var(--color-surface-2);
  color: var(--color-text);
  border-color: var(--color-border-strong);
}

.btn:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

/* Avatar */
.avatar {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-2));
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 700;
  color: #0c0e14;
}

/* Back button */
.back-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 13px;
  color: var(--color-text-secondary);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-6);
  transition: color var(--transition-fast), background-color var(--transition-fast);
}

.back-btn:hover,
.back-btn:focus-visible {
  color: var(--color-text);
  background: var(--color-surface-2);
}

.back-btn:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

/* ============================================================
   5. LAYOUT
   ============================================================ */
.page-wrapper {
  display: flex;
  max-width: var(--content-max);
  margin: 0 auto;
  padding: var(--space-6) var(--space-6) var(--space-16);
  gap: var(--space-8);
  padding-top: calc(var(--nav-height) + var(--space-6));
  min-height: calc(100vh - 60px);
}

/* Views */
.view {
  opacity: 0;
  animation: fadeInUp 0.5s ease forwards;
}

.view[hidden] {
  display: none;
}

.view.is-active {
  display: block;
}

/* Two column layout */
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-6);
}

/* ============================================================
   6. NAVIGATION
   ============================================================ */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--nav-height);
  background: rgba(12, 14, 20, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--color-border);
}

.nav-inner {
  display: flex;
  align-items: center;
  max-width: var(--content-max);
  height: 100%;
  margin: 0 auto;
  padding: 0 var(--space-6);
  gap: var(--space-8);
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-shrink: 0;
  transition: opacity var(--transition-fast);
}

.nav-logo:hover { opacity: 0.8; }

.nav-logo__text {
  font-size: 16px;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--color-text);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  flex: 1;
}

.nav-link {
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text-secondary);
  transition: color var(--transition-fast), background-color var(--transition-fast);
  white-space: nowrap;
}

.nav-link:hover,
.nav-link:focus-visible {
  color: var(--color-text);
  background: var(--color-surface-2);
}

.nav-link.is-active {
  color: var(--color-accent);
}

.nav-link:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-left: auto;
}

.hamburger {
  display: none;
}

/* Mobile menu */
.mobile-menu {
  position: fixed;
  top: var(--nav-height);
  right: 0;
  bottom: 0;
  width: 260px;
  background: var(--color-surface);
  border-left: 1px solid var(--color-border);
  z-index: 99;
  padding: var(--space-6);
  transform: translateX(100%);
  transition: transform var(--transition-slow);
}

.mobile-menu.is-open {
  transform: translateX(0);
}

.mobile-nav-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.mobile-nav-link {
  display: block;
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text-secondary);
  transition: color var(--transition-fast), background-color var(--transition-fast);
}

.mobile-nav-link:hover,
.mobile-nav-link.is-active {
  color: var(--color-text);
  background: var(--color-surface-2);
}

.mobile-nav-link.is-active { color: var(--color-accent); }

.mobile-menu-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 98;
  top: var(--nav-height);
}

.mobile-menu-overlay.is-open {
  display: block;
}

/* ============================================================
   7. SEARCH
   ============================================================ */
.search-overlay {
  position: fixed;
  top: var(--nav-height);
  left: 0;
  right: 0;
  z-index: 90;
  background: rgba(12,14,20,0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-4) var(--space-6);
  transform: translateY(-100%);
  opacity: 0;
  transition: transform var(--transition-slow), opacity var(--transition-slow);
  pointer-events: none;
}

.search-overlay.is-open {
  transform: translateY(0);
  opacity: 1;
  pointer-events: all;
}

.search-container {
  max-width: 640px;
  margin: 0 auto;
}

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

.search-icon {
  position: absolute;
  left: 14px;
  color: var(--color-muted);
  pointer-events: none;
  flex-shrink: 0;
}

.search-input {
  width: 100%;
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 12px 44px 12px 44px;
  font-size: 15px;
  color: var(--color-text);
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
  outline: none;
  appearance: none;
}

.search-input::placeholder { color: var(--color-muted); }

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

/* Remove native search clear */
.search-input::-webkit-search-cancel-button { display: none; }

.search-close {
  position: absolute;
  right: 8px;
}

.search-results {
  margin-top: var(--space-3);
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  max-height: 340px;
  overflow-y: auto;
}

.search-results:empty { display: none; }

.search-result-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: 10px 14px;
  cursor: pointer;
  transition: background-color var(--transition-fast);
  border-bottom: 1px solid var(--color-border);
}

.search-result-item:last-child { border-bottom: none; }

.search-result-item:hover,
.search-result-item:focus {
  background: var(--color-surface-3);
}

.search-result-item:focus { outline: none; }

.search-result-thumb {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  object-fit: cover;
  flex-shrink: 0;
  background: var(--color-surface-3);
}

.search-result-info { flex: 1; min-width: 0; }

.search-result-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.search-result-meta {
  font-size: 12px;
  color: var(--color-text-secondary);
  margin-top: 2px;
}

.search-empty {
  padding: 16px;
  text-align: center;
  font-size: 14px;
  color: var(--color-muted);
}

/* Hero search (within hero) */
.hero-search {
  position: relative;
  max-width: 560px;
  margin: var(--space-8) auto 0;
}

.hero-search .search-input {
  background: rgba(255,255,255,0.06);
  border-color: rgba(255,255,255,0.12);
  padding: 14px 44px;
  font-size: 15px;
}

.hero-search .search-input:focus {
  background: var(--color-surface-2);
}

.hero-search .search-results,
.hero-search .search-empty {
  position: absolute;
  left: 0;
  right: 0;
  top: calc(100% + 8px);
  z-index: 10;
}

/* ============================================================
   8. SIDEBAR
   ============================================================ */
.sidebar {
  width: var(--sidebar-width);
  flex-shrink: 0;
  position: sticky;
  top: calc(var(--nav-height) + var(--space-6));
  max-height: calc(100vh - var(--nav-height) - var(--space-12));
  overflow-y: auto;
  overflow-x: hidden;
  scrollbar-width: thin;
  scrollbar-color: var(--color-border) transparent;
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

.sidebar::-webkit-scrollbar { width: 4px; }
.sidebar::-webkit-scrollbar-track { background: transparent; }
.sidebar::-webkit-scrollbar-thumb { background: var(--color-border); border-radius: 2px; }

.sidebar-section { }

.sidebar-heading {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-muted);
  margin-bottom: var(--space-3);
  padding-bottom: var(--space-2);
  border-bottom: 1px solid var(--color-border);
}

.sidebar-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.sidebar-link {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: 7px 10px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  color: var(--color-text-secondary);
  transition: color var(--transition-fast), background-color var(--transition-fast);
}

.sidebar-link:hover,
.sidebar-link:focus-visible {
  color: var(--color-text);
  background: var(--color-surface-2);
}

.sidebar-link:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.sidebar-link svg { flex-shrink: 0; opacity: 0.6; }

.sidebar-category-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}

.sidebar-activity {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.activity-item {
  font-size: 12px;
}

.activity-item-title {
  color: var(--color-text);
  font-weight: 500;
  display: block;
  margin-bottom: 2px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.activity-item-meta {
  color: var(--color-muted);
  font-size: 11px;
}

/* Stats */
.stats-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3);
}

.stat-item {
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: var(--space-3);
  text-align: center;
}

.stat-label {
  font-size: 10px;
  color: var(--color-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  display: block;
  margin-bottom: var(--space-1);
}

.stat-value {
  font-size: 20px;
  font-weight: 800;
  color: var(--color-accent);
}

/* ============================================================
   9. MAIN CONTENT + SECTIONS + CARDS
   ============================================================ */
.main-content {
  flex: 1;
  min-width: 0;
}

/* Section */
.section {
  margin-bottom: var(--space-12);
}

.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-6);
  gap: var(--space-4);
  flex-wrap: wrap;
}

.section-title {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 1.2rem;
  font-weight: 700;
}

/* Tabs */
.tab-bar {
  display: flex;
  gap: var(--space-1);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 3px;
}

.tab {
  padding: 6px 14px;
  border-radius: calc(var(--radius-sm) - 2px);
  font-size: 13px;
  font-weight: 500;
  color: var(--color-text-secondary);
  transition: color var(--transition-fast), background-color var(--transition-fast);
  white-space: nowrap;
}

.tab:hover { color: var(--color-text); }

.tab.is-active {
  background: var(--color-surface-2);
  color: var(--color-text);
}

.tab:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.tab-panels { }

.tab-panel {
  animation: fadeIn 0.25s ease forwards;
}

.tab-panel[hidden] { display: none; }

/* Cards grid */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: var(--space-5);
}

/* Article card */
.article-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  cursor: pointer;
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
  display: flex;
  flex-direction: column;
}

.article-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-border-strong);
}

.article-card:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.card-thumb {
  aspect-ratio: 16/9;
  overflow: hidden;
  background: var(--color-surface-2);
  position: relative;
}

.card-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.article-card:hover .card-thumb img {
  transform: scale(1.04);
}

.card-body {
  padding: var(--space-4);
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
}

.card-date {
  font-size: 11px;
  color: var(--color-muted);
}

.card-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.3;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.card-excerpt {
  font-size: 13px;
  color: var(--color-text-secondary);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  flex: 1;
}

.card-footer {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-top: var(--space-3);
  padding-top: var(--space-3);
  border-top: 1px solid var(--color-border);
}

.card-author {
  font-size: 12px;
  color: var(--color-muted);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.card-author .avatar {
  width: 22px;
  height: 22px;
  font-size: 9px;
}

/* ============================================================
   10. CATEGORY GRID
   ============================================================ */
.category-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: var(--space-4);
}

.category-tile {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  cursor: pointer;
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base), background-color var(--transition-base);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  position: relative;
  overflow: hidden;
}

.category-tile::before {
  content: '';
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity var(--transition-base);
  background: var(--tile-glow, transparent);
}

.category-tile:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.category-tile:hover::before { opacity: 1; }

.category-tile:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.category-tile__icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--tile-icon-bg, var(--color-surface-2));
}

.category-tile__icon svg { width: 20px; height: 20px; }

.category-tile__name {
  font-size: 14px;
  font-weight: 700;
  color: var(--color-text);
}

.category-tile__count {
  font-size: 12px;
  color: var(--color-muted);
  margin-top: auto;
}

/* ============================================================
   11. TRENDING & RECENT LISTS
   ============================================================ */
.trending-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.trending-item {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-3) var(--space-4);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: background-color var(--transition-fast), border-color var(--transition-fast), transform var(--transition-base);
}

.trending-item:hover {
  background: var(--color-surface-2);
  border-color: var(--color-border-strong);
  transform: translateX(4px);
}

.trending-item:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.trending-rank {
  font-size: 22px;
  font-weight: 900;
  color: var(--color-surface-3);
  min-width: 32px;
  text-align: right;
  font-variant-numeric: tabular-nums;
}

.trending-item:nth-child(1) .trending-rank { color: var(--color-accent); }
.trending-item:nth-child(2) .trending-rank { color: var(--color-accent-2); }
.trending-item:nth-child(3) .trending-rank { color: #f59e0b; }

.trending-info { flex: 1; min-width: 0; }

.trending-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text);
  display: block;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-bottom: 3px;
}

.trending-meta {
  font-size: 12px;
  color: var(--color-muted);
}

.trending-thumb {
  width: 48px;
  height: 36px;
  border-radius: var(--radius-sm);
  object-fit: cover;
  flex-shrink: 0;
  background: var(--color-surface-3);
}

/* Recent list */
.recent-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.recent-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: background-color var(--transition-fast), border-color var(--transition-fast);
}

.recent-item:hover {
  background: var(--color-surface-2);
  border-color: var(--color-border-strong);
}

.recent-item:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.recent-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-accent);
  flex-shrink: 0;
  margin-top: 5px;
}

.recent-info { flex: 1; min-width: 0; }

.recent-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-text);
  display: block;
  margin-bottom: 3px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.recent-meta {
  font-size: 11px;
  color: var(--color-muted);
}

/* ============================================================
   12. HERO
   ============================================================ */
.hero {
  position: relative;
  text-align: center;
  padding: var(--space-16) var(--space-6) var(--space-12);
  margin-bottom: var(--space-12);
  border-radius: var(--radius-xl);
  overflow: hidden;
  isolation: isolate;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: -1;
  background-image: url('assets/hero-bg.jpg');
  background-size: cover;
  background-position: center top;
  background-repeat: no-repeat;
}

.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(12, 14, 20, 0.5) 0%,
    rgba(12, 14, 20, 0.3) 40%,
    rgba(12, 14, 20, 0.85) 80%,
    var(--color-bg) 100%
  );
}

.hero-content {
  position: relative;
  z-index: 1;
}

.hero-eyebrow {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-4);
  padding: 4px 14px;
  border: 1px solid rgba(var(--color-accent-rgb), 0.3);
  border-radius: var(--radius-full);
  background: rgba(var(--color-accent-rgb), 0.08);
}

.hero-title {
  font-size: clamp(2.2rem, 5vw, 3.5rem);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -0.03em;
  color: var(--color-text);
  margin-bottom: var(--space-4);
}

.hero-title--accent {
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1rem;
  color: var(--color-text-secondary);
  max-width: 520px;
  margin: 0 auto var(--space-6);
  line-height: 1.6;
}

.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  flex-wrap: wrap;
}

/* ============================================================
   13. ARTICLE VIEW
   ============================================================ */
.article-layout {
  display: grid;
  grid-template-columns: 1fr 260px;
  gap: var(--space-8);
  align-items: start;
}

.article-main {
  min-width: 0;
}

.article-header {
  margin-bottom: var(--space-6);
}

.article-meta-top {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}

.article-date {
  font-size: 12px;
  color: var(--color-muted);
}

.article-title {
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 900;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-4);
  line-height: 1.15;
}

.article-excerpt {
  font-size: 1rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin-bottom: var(--space-5);
  border-left: 3px solid var(--color-accent);
  padding-left: var(--space-4);
}

.article-author {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: 13px;
  color: var(--color-text-secondary);
}

.article-hero-img {
  margin-bottom: var(--space-8);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
}

.article-hero-img img {
  width: 100%;
  aspect-ratio: 16/7;
  object-fit: cover;
}

/* Prose styles */
.prose {
  color: var(--color-text-secondary);
  font-size: 15px;
  line-height: 1.8;
}

.prose h2 {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--color-text);
  margin: var(--space-8) 0 var(--space-4);
  padding-bottom: var(--space-3);
  border-bottom: 1px solid var(--color-border);
}

.prose h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-text);
  margin: var(--space-6) 0 var(--space-3);
}

.prose p {
  margin-bottom: var(--space-4);
}

.prose ul, .prose ol {
  margin: var(--space-4) 0;
  padding-left: var(--space-6);
}

.prose ul { list-style: disc; }
.prose ol { list-style: decimal; }

.prose li {
  margin-bottom: var(--space-2);
  color: var(--color-text-secondary);
}

.prose strong {
  color: var(--color-text);
  font-weight: 600;
}

.prose em {
  color: var(--color-accent);
  font-style: normal;
  font-weight: 500;
}

.prose blockquote {
  background: var(--color-surface-2);
  border-left: 3px solid var(--color-accent-2);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: var(--space-4) var(--space-5);
  margin: var(--space-6) 0;
  font-style: italic;
  color: var(--color-text);
}

.prose code {
  font-family: var(--font-mono);
  font-size: 13px;
  background: var(--color-surface-3);
  color: var(--color-accent);
  padding: 2px 6px;
  border-radius: 4px;
}

/* Article footer */
.article-footer {
  margin-top: var(--space-8);
  padding-top: var(--space-6);
  border-top: 1px solid var(--color-border);
}

.article-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.article-tag {
  padding: 4px 12px;
  border-radius: var(--radius-full);
  font-size: 12px;
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  color: var(--color-text-secondary);
  transition: border-color var(--transition-fast), color var(--transition-fast);
  cursor: pointer;
}

.article-tag:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.related-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.related-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-2);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background-color var(--transition-fast);
}

.related-item:hover {
  background: var(--color-surface-2);
}

.related-item:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.related-thumb {
  width: 44px;
  height: 36px;
  border-radius: var(--radius-sm);
  object-fit: cover;
  flex-shrink: 0;
  background: var(--color-surface-3);
}

.related-info { min-width: 0; }

.related-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-text);
  display: block;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.related-category {
  font-size: 11px;
  color: var(--color-muted);
  display: block;
  margin-top: 2px;
}

.article-sidebar .sidebar-section {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  margin-bottom: var(--space-4);
}

.article-sidebar {
  position: sticky;
  top: calc(var(--nav-height) + var(--space-6));
}

/* ============================================================
   14. FOOTER
   ============================================================ */
.site-footer {
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  margin-top: var(--space-16);
}

.footer-inner {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: var(--space-12) var(--space-6) var(--space-8);
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: var(--space-12);
  align-items: start;
}

.footer-brand {
  max-width: 260px;
}

.footer-tagline {
  font-size: 13px;
  color: var(--color-muted);
  margin-top: var(--space-3);
  line-height: 1.5;
}

.footer-nav {
  display: flex;
  gap: var(--space-12);
}

.footer-nav-heading {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-muted);
  margin-bottom: var(--space-4);
}

.footer-nav-col ul {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer-link {
  font-size: 13px;
  color: var(--color-text-secondary);
  transition: color var(--transition-fast);
}

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

.footer-social {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  color: var(--color-text-secondary);
  transition: background-color var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-base);
}

.social-link:hover {
  background: var(--color-surface-3);
  color: var(--color-text);
  border-color: var(--color-border-strong);
  box-shadow: 0 0 12px rgba(var(--color-accent-rgb), 0.2);
}

.footer-bottom {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: var(--space-5) var(--space-6);
  border-top: 1px solid var(--color-border);
  font-size: 12px;
  color: var(--color-muted);
}

/* ============================================================
   15. ANIMATIONS & TRANSITIONS
   ============================================================ */
@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideInRight {
  from { transform: translateX(100%); }
  to   { transform: translateX(0); }
}

/* Scroll reveal */
.reveal-section {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}

.reveal-section.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Loading skeleton */
.skeleton {
  background: linear-gradient(90deg, var(--color-surface-2) 25%, var(--color-surface-3) 50%, var(--color-surface-2) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--radius-sm);
}

@keyframes shimmer {
  0%   { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* ============================================================
   16. RESPONSIVE
   ============================================================ */

/* Large desktop */
@media (min-width: 1280px) {
  .cards-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* Laptop / narrow desktop */
@media (max-width: 1100px) {
  .footer-inner {
    grid-template-columns: 1fr 1fr;
    row-gap: var(--space-8);
  }

  .footer-social {
    flex-direction: row;
    grid-column: 1 / -1;
  }
}

/* Tablet */
@media (max-width: 900px) {
  .sidebar {
    display: none;
  }

  .page-wrapper {
    padding-left: var(--space-4);
    padding-right: var(--space-4);
  }

  .two-col {
    grid-template-columns: 1fr;
  }

  .article-layout {
    grid-template-columns: 1fr;
  }

  .article-sidebar {
    position: static;
  }

  .cards-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .category-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* Mobile */
@media (max-width: 640px) {
  :root {
    --nav-height: 54px;
  }

  .nav-links {
    display: none;
  }

  .hamburger {
    display: flex;
  }

  .page-wrapper {
    padding: calc(var(--nav-height) + var(--space-4)) var(--space-4) var(--space-12);
  }

  .hero {
    padding: var(--space-10) var(--space-4) var(--space-8);
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-8);
  }

  .hero-title {
    font-size: 2rem;
  }

  .hero-subtitle {
    font-size: 0.9rem;
  }

  .cards-grid {
    grid-template-columns: 1fr;
  }

  .category-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .section-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .tab-bar {
    overflow-x: auto;
    scrollbar-width: none;
    max-width: 100%;
  }

  .tab-bar::-webkit-scrollbar { display: none; }

  .footer-inner {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }

  .footer-nav {
    flex-direction: column;
    gap: var(--space-6);
  }

  .footer-social {
    flex-direction: row;
  }

  .article-title {
    font-size: 1.5rem;
  }

  .two-col {
    grid-template-columns: 1fr;
  }
}

/* Small mobile */
@media (max-width: 400px) {
  .category-grid {
    grid-template-columns: 1fr 1fr;
  }

  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .hero-actions .btn {
    justify-content: center;
  }
}

/* ============================================================
   17. ACCESSIBILITY — REDUCED MOTION
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  .reveal-section {
    opacity: 1;
    transform: none;
  }

  .view {
    opacity: 1;
    animation: none;
  }
}

/* Focus ring globally */
:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}