/* ============================================
   TK66 - Design System & Global Styles
   Target: Bangladesh (bn-BD)
   Architecture: Aggregation + Distribution
   ============================================ */

/* --- CSS Variables / Design Tokens --- */
:root {
  --color-primary: #0d47a1;
  --color-primary-light: #1565c0;
  --color-primary-dark: #082e6a;
  --color-secondary: #f5a623;
  --color-secondary-light: #f5d26e;
  --color-secondary-dark: #c8922a;
  --color-accent: #e53935;
  --color-accent-light: #ff6f00;
  --color-success: #2e7d32;
  --color-bg-deep: #060b18;
  --color-bg-dark: #0a0e17;
  --color-bg-card: #131829;
  --color-bg-surface: #1a2035;
  --color-bg-elevated: #212940;
  --color-border: #1e2a45;
  --color-border-light: #2a3a5c;
  --color-text-primary: #edf0f5;
  --color-text-secondary: #8892a4;
  --color-text-muted: #5a6478;
  --color-gold-gradient: linear-gradient(90deg, #c8922a, #f5d26e, #c8922a);
  --color-accent-gradient: linear-gradient(135deg, #e53935, #ff6f00);
  --color-card-gradient: linear-gradient(180deg, #151c30, #111827);
  --font-stack: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, "Noto Sans Bengali", sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 2rem;
  --font-size-4xl: 2.5rem;
  --font-size-5xl: 3.25rem;
  --spacing-xs: 0.5rem;
  --spacing-sm: 0.75rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;
  --spacing-4xl: 6rem;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.3);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.4);
  --shadow-lg: 0 8px 30px rgba(0,0,0,0.5);
  --shadow-glow: 0 0 20px rgba(13,71,161,0.3);
  --shadow-gold: 0 0 15px rgba(245,166,35,0.2);
  --max-width: 1280px;
  --header-height: 70px;
  --topbar-height: 38px;
  --transition-fast: 0.2s ease;
  --transition-base: 0.3s ease;
}

/* --- Reset & Base --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-stack);
  font-size: var(--font-size-base);
  line-height: 1.7;
  color: var(--color-text-primary);
  background-color: var(--color-bg-dark);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
a { color: var(--color-secondary); text-decoration: none; transition: color var(--transition-fast); }
a:hover { color: var(--color-secondary-light); }
img, svg { max-width: 100%; height: auto; display: block; }
ul, ol { list-style: none; }
h1, h2, h3, h4, h5, h6 { line-height: 1.3; font-weight: 700; color: var(--color-text-primary); }
h1 { font-size: var(--font-size-4xl); }
h2 { font-size: var(--font-size-3xl); }
h3 { font-size: var(--font-size-2xl); }
h4 { font-size: var(--font-size-xl); }
p { margin-bottom: var(--spacing-md); }

/* --- Utility --- */
.container { max-width: var(--max-width); margin: 0 auto; padding: 0 var(--spacing-xl); }
.section-padding { padding: var(--spacing-4xl) 0; }
.section-padding-sm { padding: var(--spacing-3xl) 0; }
.text-center { text-align: center; }
.text-gold { color: var(--color-secondary); }
.text-muted { color: var(--color-text-secondary); }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); border: 0; }

/* --- Section Titles --- */
.section-header { text-align: center; margin-bottom: var(--spacing-3xl); }
.section-header h2 { margin-bottom: var(--spacing-sm); }
.section-header .section-line {
  display: block; width: 60px; height: 3px; margin: var(--spacing-md) auto;
  background: var(--color-gold-gradient); border-radius: 2px;
}
.section-header p { color: var(--color-text-secondary); max-width: 600px; margin: 0 auto; font-size: var(--font-size-lg); }

/* --- Buttons --- */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 10px 28px; border-radius: var(--radius-full); font-weight: 600;
  font-size: var(--font-size-sm); cursor: pointer; border: none;
  transition: all var(--transition-base); text-decoration: none; line-height: 1.4;
  white-space: nowrap;
}
.btn-register {
  background: var(--color-accent-gradient); color: #fff;
  box-shadow: 0 2px 10px rgba(229,57,53,0.3);
}
.btn-register:hover { transform: translateY(-1px); box-shadow: 0 4px 18px rgba(229,57,53,0.4); color: #fff; }
.btn-login {
  background: transparent; color: var(--color-secondary);
  border: 1.5px solid var(--color-secondary);
}
.btn-login:hover { background: rgba(245,166,35,0.1); color: var(--color-secondary-light); }
.btn-primary {
  background: var(--color-accent-gradient); color: #fff;
  padding: 14px 36px; font-size: var(--font-size-base);
  box-shadow: 0 2px 10px rgba(229,57,53,0.3);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 6px 20px rgba(229,57,53,0.4); color: #fff; }
.btn-secondary {
  background: transparent; color: var(--color-secondary);
  border: 2px solid var(--color-secondary); padding: 14px 36px; font-size: var(--font-size-base);
}
.btn-secondary:hover { background: rgba(245,166,35,0.1); color: var(--color-secondary-light); }
.btn-ghost {
  background: rgba(255,255,255,0.05); color: var(--color-text-primary);
  border: 1px solid var(--color-border-light); padding: 12px 28px;
}
.btn-ghost:hover { background: rgba(255,255,255,0.1); }

/* --- Topbar --- */
.topbar {
  background: var(--color-bg-deep);
  border-bottom: 1px solid var(--color-border);
  height: var(--topbar-height); display: flex; align-items: center;
  font-size: var(--font-size-xs); color: var(--color-text-secondary);
}
.topbar .container { display: flex; justify-content: space-between; align-items: center; }
.topbar-left, .topbar-right { display: flex; align-items: center; gap: var(--spacing-lg); }
.topbar a { color: var(--color-text-secondary); }
.topbar a:hover { color: var(--color-secondary); }

/* --- Header --- */
.site-header {
  background: rgba(10,14,23,0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
  position: sticky; top: 0; z-index: 1000;
  height: var(--header-height);
}
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 100%;
}
.header-logo { flex-shrink: 0; }
.header-logo svg, .header-logo img {
  height: 44px; width: auto; max-width: 160px;
}
.header-nav { display: flex; align-items: center; gap: 0; }
.header-nav a {
  color: var(--color-text-primary); font-size: var(--font-size-sm);
  padding: 8px 14px; border-radius: var(--radius-sm);
  transition: all var(--transition-fast); font-weight: 500;
}
.header-nav a:hover, .header-nav a.active {
  color: var(--color-secondary); background: rgba(245,166,35,0.08);
}
.header-actions { display: flex; align-items: center; gap: var(--spacing-sm); flex-shrink: 0; }

/* Mobile menu */
.mobile-toggle {
  display: none; background: none; border: none; cursor: pointer; padding: 8px;
  flex-direction: column; gap: 5px;
}
.mobile-toggle span {
  display: block; width: 24px; height: 2px;
  background: var(--color-text-primary); transition: all var(--transition-base);
  border-radius: 2px;
}
.mobile-nav {
  display: none; position: fixed; top: var(--header-height); left: 0; right: 0;
  background: var(--color-bg-deep); border-bottom: 1px solid var(--color-border);
  padding: var(--spacing-lg); z-index: 999; max-height: calc(100vh - var(--header-height));
  overflow-y: auto;
}
.mobile-nav.active { display: block; }
.mobile-nav a {
  display: block; padding: 12px 16px; color: var(--color-text-primary);
  border-bottom: 1px solid var(--color-border); font-size: var(--font-size-base);
}
.mobile-nav a:hover { color: var(--color-secondary); background: rgba(245,166,35,0.05); }
.mobile-nav .mobile-actions { display: flex; gap: var(--spacing-sm); padding-top: var(--spacing-lg); }
.mobile-nav .mobile-actions .btn { flex: 1; text-align: center; }

/* --- Hero / Banner --- */
.hero-banner {
  position: relative; overflow: hidden;
  background: var(--color-bg-deep);
}
.hero-banner img, .hero-banner svg {
  width: 100%; height: auto; display: block;
  max-height: 560px; object-fit: cover;
}

/* --- Shortcut Grid --- */
.shortcut-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: var(--spacing-md);
}
.shortcut-card {
  background: var(--color-card-gradient);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--spacing-xl) var(--spacing-md);
  text-align: center;
  transition: all var(--transition-base);
  position: relative; overflow: hidden;
}
.shortcut-card::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: var(--color-gold-gradient); opacity: 0;
  transition: opacity var(--transition-base);
}
.shortcut-card:hover { transform: translateY(-4px); border-color: var(--color-border-light); box-shadow: var(--shadow-lg); }
.shortcut-card:hover::before { opacity: 1; }
.shortcut-card .card-icon {
  width: 48px; height: 48px; margin: 0 auto var(--spacing-md);
  background: rgba(13,71,161,0.2); border-radius: var(--radius-md);
  display: flex; align-items: center; justify-content: center;
}
.shortcut-card .card-icon svg { width: 24px; height: 24px; }
.shortcut-card h3 { font-size: var(--font-size-base); margin-bottom: var(--spacing-xs); }
.shortcut-card p { font-size: var(--font-size-sm); color: var(--color-text-secondary); margin: 0; }

/* --- Content Feed Cards --- */
.feed-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-xl);
}
.feed-card {
  background: var(--color-card-gradient);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden; transition: all var(--transition-base);
}
.feed-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); border-color: var(--color-border-light); }
.feed-card .card-img {
  height: 200px; background: var(--color-bg-elevated);
  display: flex; align-items: center; justify-content: center;
  overflow: hidden;
}
.feed-card .card-img svg { width: 100%; height: 100%; object-fit: cover; }
.feed-card .card-body { padding: var(--spacing-xl); }
.feed-card .card-body h3 { font-size: var(--font-size-lg); margin-bottom: var(--spacing-sm); }
.feed-card .card-body p { color: var(--color-text-secondary); font-size: var(--font-size-sm); }
.feed-card .card-body .card-link {
  display: inline-block; margin-top: var(--spacing-md);
  color: var(--color-secondary); font-weight: 600; font-size: var(--font-size-sm);
}

/* --- Feature Blocks --- */
.feature-row {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: var(--spacing-3xl); align-items: center;
  margin-bottom: var(--spacing-3xl);
}
.feature-row.reverse { direction: rtl; }
.feature-row.reverse > * { direction: ltr; }
.feature-visual {
  background: var(--color-card-gradient);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-3xl); text-align: center;
  min-height: 300px; display: flex; align-items: center; justify-content: center;
}
.feature-content h3 { font-size: var(--font-size-2xl); margin-bottom: var(--spacing-lg); }
.feature-content p { color: var(--color-text-secondary); margin-bottom: var(--spacing-md); }
.feature-content .feature-list { margin: var(--spacing-lg) 0; }
.feature-content .feature-list li {
  padding: var(--spacing-sm) 0; color: var(--color-text-secondary);
  border-bottom: 1px solid var(--color-border);
  padding-left: var(--spacing-lg); position: relative;
}
.feature-content .feature-list li::before {
  content: ''; position: absolute; left: 0; top: 50%;
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--color-secondary); transform: translateY(-50%);
}

/* --- Long Content / SEO Text --- */
.seo-content { background: var(--color-bg-deep); }
.seo-content .content-wrapper {
  max-width: 900px; margin: 0 auto;
}
.seo-content h2 { font-size: var(--font-size-2xl); margin: var(--spacing-2xl) 0 var(--spacing-lg); color: var(--color-secondary); }
.seo-content h3 { font-size: var(--font-size-xl); margin: var(--spacing-xl) 0 var(--spacing-md); }
.seo-content p { color: var(--color-text-secondary); line-height: 1.85; margin-bottom: var(--spacing-lg); }
.seo-content ul { margin: var(--spacing-md) 0 var(--spacing-xl) var(--spacing-xl); }
.seo-content ul li {
  color: var(--color-text-secondary); padding: var(--spacing-xs) 0;
  position: relative; padding-left: var(--spacing-lg);
}
.seo-content ul li::before {
  content: ''; position: absolute; left: 0; top: 12px;
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--color-secondary);
}

/* --- FAQ Accordion --- */
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  margin-bottom: var(--spacing-md);
  background: var(--color-bg-card);
  overflow: hidden;
}
.faq-question {
  display: flex; justify-content: space-between; align-items: center;
  padding: var(--spacing-lg) var(--spacing-xl);
  cursor: pointer; font-weight: 600; font-size: var(--font-size-lg);
  color: var(--color-text-primary);
  transition: color var(--transition-fast);
}
.faq-question:hover { color: var(--color-secondary); }
.faq-question .faq-toggle {
  width: 24px; height: 24px; flex-shrink: 0;
  position: relative; margin-left: var(--spacing-md);
}
.faq-question .faq-toggle::before, .faq-question .faq-toggle::after {
  content: ''; position: absolute; background: var(--color-text-secondary);
  transition: transform var(--transition-base);
}
.faq-question .faq-toggle::before {
  width: 14px; height: 2px; top: 50%; left: 50%; transform: translate(-50%, -50%);
}
.faq-question .faq-toggle::after {
  width: 2px; height: 14px; top: 50%; left: 50%; transform: translate(-50%, -50%);
}
.faq-item.active .faq-question .faq-toggle::after { transform: translate(-50%, -50%) rotate(90deg); }
.faq-answer {
  max-height: 0; overflow: hidden;
  transition: max-height 0.4s ease, padding 0.3s ease;
}
.faq-item.active .faq-answer { max-height: 500px; }
.faq-answer-inner {
  padding: 0 var(--spacing-xl) var(--spacing-xl);
  color: var(--color-text-secondary); line-height: 1.8;
}
.faq-answer-inner a { color: var(--color-secondary); }

/* --- CTA Block --- */
.cta-block {
  background: linear-gradient(135deg, var(--color-primary-dark), var(--color-primary));
  border-radius: var(--radius-xl);
  padding: var(--spacing-4xl) var(--spacing-3xl);
  text-align: center; position: relative; overflow: hidden;
}
.cta-block::before {
  content: ''; position: absolute; top: -50%; right: -20%;
  width: 500px; height: 500px; border-radius: 50%;
  background: rgba(245,166,35,0.08);
}
.cta-block h2 { font-size: var(--font-size-3xl); margin-bottom: var(--spacing-md); position: relative; }
.cta-block p { color: rgba(255,255,255,0.8); margin-bottom: var(--spacing-xl); position: relative; max-width: 600px; margin-left: auto; margin-right: auto; }
.cta-block .cta-actions { display: flex; justify-content: center; gap: var(--spacing-md); position: relative; flex-wrap: wrap; }

/* --- News List --- */
.news-list { display: flex; flex-direction: column; gap: var(--spacing-xl); }
.news-item {
  display: grid; grid-template-columns: 280px 1fr;
  gap: var(--spacing-xl); background: var(--color-bg-card);
  border: 1px solid var(--color-border); border-radius: var(--radius-lg);
  overflow: hidden; transition: all var(--transition-base);
}
.news-item:hover { border-color: var(--color-border-light); box-shadow: var(--shadow-md); }
.news-item .news-thumb {
  background: var(--color-bg-elevated);
  display: flex; align-items: center; justify-content: center;
  min-height: 200px;
}
.news-item .news-body { padding: var(--spacing-xl); }
.news-item .news-meta { font-size: var(--font-size-xs); color: var(--color-text-muted); margin-bottom: var(--spacing-sm); }
.news-item .news-body h3 { font-size: var(--font-size-xl); margin-bottom: var(--spacing-sm); }
.news-item .news-body h3 a { color: var(--color-text-primary); }
.news-item .news-body h3 a:hover { color: var(--color-secondary); }
.news-item .news-body p { color: var(--color-text-secondary); font-size: var(--font-size-sm); }
.news-item .news-body .read-more { color: var(--color-secondary); font-weight: 600; font-size: var(--font-size-sm); display: inline-block; margin-top: var(--spacing-sm); }

/* --- Article Detail --- */
.article-header { padding: var(--spacing-3xl) 0 var(--spacing-xl); overflow: hidden; }
.article-header .breadcrumb { margin-bottom: var(--spacing-xl); overflow: hidden; text-overflow: ellipsis; }
.article-header h1 { font-size: var(--font-size-4xl); margin-bottom: var(--spacing-md); overflow-wrap: break-word; word-wrap: break-word; word-break: break-all; }
.article-header .article-meta { color: var(--color-text-muted); font-size: var(--font-size-sm); }
.article-content { max-width: 800px; overflow-wrap: break-word; word-wrap: break-word; word-break: break-all; overflow: hidden; }
.article-content p { color: var(--color-text-secondary); line-height: 1.9; margin-bottom: var(--spacing-lg); }
.article-content h2 { font-size: var(--font-size-2xl); margin: var(--spacing-2xl) 0 var(--spacing-lg); color: var(--color-secondary); }
.article-content h3 { font-size: var(--font-size-xl); margin: var(--spacing-xl) 0 var(--spacing-md); }
.article-sidebar {
  position: sticky; top: calc(var(--header-height) + 20px);
}
.article-layout {
  display: grid; grid-template-columns: 1fr 320px;
  gap: var(--spacing-3xl);
}
.sidebar-block {
  background: var(--color-bg-card); border: 1px solid var(--color-border);
  border-radius: var(--radius-md); padding: var(--spacing-xl); margin-bottom: var(--spacing-xl);
}
.sidebar-block h4 { font-size: var(--font-size-lg); margin-bottom: var(--spacing-md); color: var(--color-secondary); }
.sidebar-block ul li { padding: var(--spacing-sm) 0; border-bottom: 1px solid var(--color-border); }
.sidebar-block ul li:last-child { border: none; }
.sidebar-block ul li a { color: var(--color-text-secondary); font-size: var(--font-size-sm); }
.sidebar-block ul li a:hover { color: var(--color-secondary); }

/* --- Breadcrumb --- */
.breadcrumb {
  display: flex; align-items: center; gap: var(--spacing-sm);
  font-size: var(--font-size-sm); color: var(--color-text-muted);
  flex-wrap: wrap;
}
.breadcrumb a { color: var(--color-text-secondary); }
.breadcrumb a:hover { color: var(--color-secondary); }
.breadcrumb .sep { color: var(--color-text-muted); }

/* --- Page Hero (inner pages) --- */
.page-hero {
  background: linear-gradient(180deg, var(--color-bg-deep), var(--color-bg-dark));
  padding: var(--spacing-3xl) 0 var(--spacing-2xl);
  border-bottom: 1px solid var(--color-border);
}
.page-hero .breadcrumb { margin-bottom: var(--spacing-lg); }
.page-hero h1 { margin-bottom: var(--spacing-md); }
.page-hero .lead { color: var(--color-text-secondary); font-size: var(--font-size-lg); max-width: 700px; }

/* --- Category Grid (for live/slots/sports) --- */
.category-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--spacing-xl);
}
.category-card {
  background: var(--color-card-gradient);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  transition: all var(--transition-base);
}
.category-card:hover { border-color: var(--color-secondary); box-shadow: var(--shadow-gold); transform: translateY(-2px); }
.category-card h3 { font-size: var(--font-size-lg); margin-bottom: var(--spacing-sm); }
.category-card p { color: var(--color-text-secondary); font-size: var(--font-size-sm); margin-bottom: var(--spacing-md); }

/* --- Stats Row --- */
.stats-row {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-xl);
}
.stat-item {
  text-align: center; padding: var(--spacing-xl);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}
.stat-item .stat-number { font-size: var(--font-size-3xl); font-weight: 800; color: var(--color-secondary); }
.stat-item .stat-label { color: var(--color-text-secondary); font-size: var(--font-size-sm); margin-top: var(--spacing-xs); }

/* --- Steps --- */
.steps-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--spacing-xl); counter-reset: step;
}
.step-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-2xl) var(--spacing-xl);
  position: relative; counter-increment: step;
}
.step-card::before {
  content: counter(step);
  position: absolute; top: -16px; left: var(--spacing-xl);
  width: 32px; height: 32px; border-radius: 50%;
  background: var(--color-accent-gradient);
  color: #fff; font-weight: 700; font-size: var(--font-size-sm);
  display: flex; align-items: center; justify-content: center;
}
.step-card h3 { font-size: var(--font-size-lg); margin-bottom: var(--spacing-sm); }
.step-card p { color: var(--color-text-secondary); font-size: var(--font-size-sm); margin: 0; }

/* --- Bonus Table --- */
.bonus-table {
  width: 100%; border-collapse: separate; border-spacing: 0;
  background: var(--color-bg-card); border-radius: var(--radius-md);
  overflow: hidden; border: 1px solid var(--color-border);
}
.bonus-table th {
  background: var(--color-bg-elevated);
  padding: var(--spacing-md) var(--spacing-lg);
  text-align: left; font-weight: 600; font-size: var(--font-size-sm);
  color: var(--color-secondary); border-bottom: 1px solid var(--color-border);
}
.bonus-table td {
  padding: var(--spacing-md) var(--spacing-lg);
  border-bottom: 1px solid var(--color-border);
  color: var(--color-text-secondary); font-size: var(--font-size-sm);
}
.bonus-table tr:last-child td { border-bottom: none; }

/* --- Policy / About Content --- */
.policy-content, .about-content {
  max-width: 860px; margin: 0 auto;
}
.policy-content h2, .about-content h2 {
  font-size: var(--font-size-2xl); color: var(--color-secondary);
  margin: var(--spacing-2xl) 0 var(--spacing-lg);
  padding-bottom: var(--spacing-sm); border-bottom: 1px solid var(--color-border);
}
.policy-content h3, .about-content h3 {
  font-size: var(--font-size-xl); margin: var(--spacing-xl) 0 var(--spacing-md);
}
.policy-content p, .about-content p {
  color: var(--color-text-secondary); line-height: 1.85;
}
.about-content .timeline {
  margin: var(--spacing-2xl) 0;
  border-left: 2px solid var(--color-border-light);
  padding-left: var(--spacing-xl);
}
.about-content .timeline-item {
  position: relative; margin-bottom: var(--spacing-2xl);
  padding-left: var(--spacing-md);
}
.about-content .timeline-item::before {
  content: '';
  position: absolute; left: calc(-1 * var(--spacing-xl) - 5px); top: 6px;
  width: 10px; height: 10px; border-radius: 50%;
  background: var(--color-secondary);
}
.about-content .timeline-item .year {
  font-weight: 700; color: var(--color-secondary);
  font-size: var(--font-size-lg); margin-bottom: var(--spacing-xs);
}

/* --- Related Links Block --- */
.related-links {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--spacing-xl);
  margin: var(--spacing-2xl) 0;
}
.related-links h4 { color: var(--color-secondary); margin-bottom: var(--spacing-md); }
.related-links-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-sm);
}
.related-links-grid a {
  display: block; padding: var(--spacing-sm) var(--spacing-md);
  background: var(--color-bg-surface);
  border-radius: var(--radius-sm);
  color: var(--color-text-secondary); font-size: var(--font-size-sm);
  transition: all var(--transition-fast);
}
.related-links-grid a:hover { color: var(--color-secondary); background: var(--color-bg-elevated); }

/* --- Footer --- */
.site-footer {
  background: var(--color-bg-deep);
  border-top: 1px solid var(--color-border);
  padding: var(--spacing-4xl) 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr 1.5fr;
  gap: var(--spacing-2xl);
  padding-bottom: var(--spacing-3xl);
  border-bottom: 1px solid var(--color-border);
}
.footer-brand p { color: var(--color-text-secondary); font-size: var(--font-size-sm); line-height: 1.7; margin-top: var(--spacing-md); }
.footer-col h4 {
  font-size: var(--font-size-sm); text-transform: uppercase;
  letter-spacing: 1px; color: var(--color-secondary);
  margin-bottom: var(--spacing-lg);
}
.footer-col ul li { margin-bottom: var(--spacing-sm); }
.footer-col ul li a {
  color: var(--color-text-secondary); font-size: var(--font-size-sm);
  transition: color var(--transition-fast);
}
.footer-col ul li a:hover { color: var(--color-secondary); }
.footer-contact p {
  color: var(--color-text-secondary); font-size: var(--font-size-sm);
  margin-bottom: var(--spacing-sm);
}
.footer-contact strong { color: var(--color-text-primary); }
.footer-bottom {
  padding: var(--spacing-xl) 0;
  display: flex; justify-content: space-between; align-items: center;
  color: var(--color-text-muted); font-size: var(--font-size-xs);
  flex-wrap: wrap; gap: var(--spacing-md);
}
.footer-bottom-links { display: flex; gap: var(--spacing-lg); }
.footer-bottom-links a { color: var(--color-text-muted); font-size: var(--font-size-xs); }
.footer-bottom-links a:hover { color: var(--color-secondary); }

/* --- 404 Page --- */
.error-page {
  min-height: 60vh; display: flex; align-items: center;
  justify-content: center; text-align: center;
}
.error-page h1 { font-size: 8rem; color: var(--color-secondary); line-height: 1; }
.error-page h2 { font-size: var(--font-size-2xl); margin: var(--spacing-md) 0; }
.error-page p { color: var(--color-text-secondary); margin-bottom: var(--spacing-xl); }
.error-links { display: flex; gap: var(--spacing-md); justify-content: center; flex-wrap: wrap; }

/* --- Responsive --- */
@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
  .feed-grid { grid-template-columns: repeat(2, 1fr); }
  .shortcut-grid { grid-template-columns: repeat(3, 1fr); }
  .feature-row { grid-template-columns: 1fr; }
  .feature-row.reverse { direction: ltr; }
  .stats-row { grid-template-columns: repeat(2, 1fr); }
  .article-layout { grid-template-columns: 1fr; }
  .article-sidebar { position: static; }
}

@media (max-width: 768px) {
  :root { --header-height: 60px; }
  h1 { font-size: var(--font-size-3xl); }
  h2 { font-size: var(--font-size-2xl); }

  .topbar { display: none; }
  .header-nav { display: none; }
  .mobile-toggle { display: flex; }

  .header-logo svg, .header-logo img { height: 36px; }
  .header-actions .btn { padding: 8px 16px; font-size: var(--font-size-xs); }

  .hero-banner img, .hero-banner svg { max-height: 300px; }

  .shortcut-grid { grid-template-columns: repeat(2, 1fr); }
  .feed-grid { grid-template-columns: 1fr; }
  .news-item { grid-template-columns: 1fr; }
  .news-item .news-thumb { min-height: 160px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .stats-row { grid-template-columns: 1fr 1fr; }
  .steps-grid { grid-template-columns: 1fr; }
  .cta-block { padding: var(--spacing-2xl) var(--spacing-xl); }

  .section-padding { padding: var(--spacing-2xl) 0; }
  .section-padding-sm { padding: var(--spacing-xl) 0; }
}

@media (max-width: 480px) {
  .shortcut-grid { grid-template-columns: repeat(2, 1fr); gap: var(--spacing-sm); }
  .footer-grid { grid-template-columns: 1fr; }
  .cta-block .cta-actions { flex-direction: column; align-items: center; }
  .header-actions { gap: 6px; }
  .header-actions .btn { padding: 6px 12px; }
}