/* ============================================
   NIGERIA BETTING AFFILIATE — DESIGN SYSTEM
   Dark theme · Nigerian-inspired · Mobile-first
   ============================================ */

/* ---------- CSS Variables ---------- */
:root {
  --bg-primary: #0d1117;
  --bg-card: #161b22;
  --bg-card-hover: #1c2129;
  --bg-input: #0d1117;
  --accent-green: #00d26a;
  --accent-green-dark: #00b35a;
  --accent-gold: #f5a623;
  --accent-gold-dark: #d4900e;
  --accent-red: #f85149;
  --text-primary: #e6edf3;
  --text-secondary: #8b949e;
  --text-muted: #6e7681;
  --border-color: #30363d;
  --border-light: #21262d;
  --shadow: 0 2px 8px rgba(0,0,0,.3);
  --shadow-lg: 0 8px 24px rgba(0,0,0,.4);
  --radius: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --nav-height: 64px;
  --max-width: 1200px;
  --transition: .2s ease;
  --font-sans: 'Segoe UI', system-ui, -apple-system, sans-serif;
}

/* ---------- Reset & Base ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--nav-height) + 16px); }
body {
  font-family: var(--font-sans);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: var(--accent-green); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--accent-gold); }
ul, ol { padding-left: 1.5em; }
table { border-collapse: collapse; width: 100%; }

/* ---------- Typography ---------- */
h1, h2, h3, h4, h5, h6 { line-height: 1.3; font-weight: 700; color: var(--text-primary); }
h1 { font-size: clamp(1.75rem, 4vw, 2.5rem); margin-bottom: .75rem; }
h2 { font-size: clamp(1.4rem, 3vw, 1.9rem); margin-top: 2.5rem; margin-bottom: 1rem; }
h3 { font-size: clamp(1.15rem, 2.5vw, 1.4rem); margin-top: 2rem; margin-bottom: .75rem; }
p { margin-bottom: 1rem; color: var(--text-secondary); }
strong { color: var(--text-primary); }

/* ---------- Layout ---------- */
.container { max-width: var(--max-width); margin: 0 auto; padding: 0 20px; }
.content-wrapper { max-width: 860px; margin: 0 auto; }
section { padding: 3rem 0; }

/* ---------- Sticky Nav ---------- */
.navbar {
  position: sticky; top: 0; z-index: 1000;
  background: rgba(13,17,23,.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  height: var(--nav-height);
}
.navbar .container {
  display: flex; align-items: center; justify-content: space-between;
  height: 100%;
}
.nav-logo {
  font-size: 1.3rem; font-weight: 800; color: var(--text-primary);
  display: flex; align-items: center; gap: 8px;
}
.nav-logo span { color: var(--accent-green); }
.nav-logo .flag { font-size: 1.1rem; }
.nav-links { display: flex; list-style: none; gap: 4px; padding: 0; }
.nav-links a {
  color: var(--text-secondary); padding: 8px 14px;
  border-radius: var(--radius); font-size: .9rem; font-weight: 500;
  transition: all var(--transition);
}
.nav-links a:hover, .nav-links a.active {
  color: var(--text-primary); background: var(--bg-card);
}

/* Hamburger */
.hamburger { display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: 8px; background: none; border: none; }
.hamburger span { display: block; width: 24px; height: 2px; background: var(--text-primary); border-radius: 2px; transition: var(--transition); }
.mobile-menu {
  display: none; position: fixed; top: var(--nav-height); left: 0; right: 0;
  background: var(--bg-card); border-bottom: 1px solid var(--border-color);
  padding: 16px 20px; z-index: 999;
}
.mobile-menu.active { display: block; }
.mobile-menu a {
  display: block; padding: 12px 16px; color: var(--text-secondary);
  border-radius: var(--radius); font-weight: 500;
}
.mobile-menu a:hover { background: var(--bg-primary); color: var(--text-primary); }

@media (max-width: 768px) {
  .nav-links { display: none; }
  .hamburger { display: flex; }
}

/* ---------- Hero ---------- */
.hero {
  padding: 4rem 0 3rem;
  background: linear-gradient(135deg, #0d1117 0%, #111922 50%, #0d1117 100%);
  border-bottom: 1px solid var(--border-light);
  text-align: center;
}
.hero h1 { margin-bottom: .5rem; }
.hero .subtitle { font-size: 1.15rem; color: var(--text-secondary); max-width: 620px; margin: 0 auto 1.5rem; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 6px;
  background: rgba(0,210,106,.1); border: 1px solid rgba(0,210,106,.25);
  color: var(--accent-green); padding: 6px 14px;
  border-radius: 99px; font-size: .85rem; font-weight: 600; margin-bottom: 1.5rem;
}
.hero-stats {
  display: flex; justify-content: center; gap: 2rem; margin-top: 2rem;
  flex-wrap: wrap;
}
.hero-stat { text-align: center; }
.hero-stat .num { font-size: 1.8rem; font-weight: 800; color: var(--accent-green); }
.hero-stat .label { font-size: .8rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: .05em; }

/* ---------- Breadcrumbs ---------- */
.breadcrumbs {
  padding: 14px 0; font-size: .85rem; color: var(--text-muted);
  border-bottom: 1px solid var(--border-light);
}
.breadcrumbs a { color: var(--text-secondary); }
.breadcrumbs a:hover { color: var(--accent-green); }
.breadcrumbs span { margin: 0 6px; }

/* ---------- Table of Contents ---------- */
.toc {
  background: var(--bg-card); border: 1px solid var(--border-color);
  border-radius: var(--radius-lg); padding: 1.5rem; margin: 2rem 0;
}
.toc-title {
  font-size: 1rem; font-weight: 700; margin-bottom: .75rem;
  display: flex; align-items: center; gap: 8px; cursor: pointer;
}
.toc-title::before { content: '📑'; }
.toc ol { padding-left: 1.25em; }
.toc li { padding: 4px 0; }
.toc a { color: var(--text-secondary); font-size: .9rem; }
.toc a:hover { color: var(--accent-green); }

/* ---------- Comparison Table ---------- */
.table-wrapper { overflow-x: auto; margin: 1.5rem 0; border-radius: var(--radius-lg); border: 1px solid var(--border-color); }
.comparison-table { min-width: 700px; }
.comparison-table thead { background: var(--bg-card); }
.comparison-table th {
  padding: 14px 16px; text-align: left; font-size: .8rem;
  text-transform: uppercase; letter-spacing: .04em; color: var(--text-muted);
  border-bottom: 2px solid var(--border-color); white-space: nowrap;
}
.comparison-table td {
  padding: 14px 16px; border-bottom: 1px solid var(--border-light);
  font-size: .95rem; vertical-align: middle;
}
.comparison-table tbody tr { transition: background var(--transition); }
.comparison-table tbody tr:hover { background: var(--bg-card-hover); }
.comparison-table .rank-cell {
  font-weight: 800; font-size: 1.1rem; color: var(--accent-gold);
  text-align: center; width: 50px;
}
.comparison-table .site-name { font-weight: 700; color: var(--text-primary); white-space: nowrap; }

/* ---------- Review Card ---------- */
.review-card {
  background: var(--bg-card); border: 1px solid var(--border-color);
  border-radius: var(--radius-lg); padding: 1.75rem;
  margin-bottom: 1.5rem; transition: all var(--transition);
  position: relative;
}
.review-card:hover { border-color: var(--accent-green); box-shadow: var(--shadow); }
.review-card.featured {
  border-color: var(--accent-gold);
  background: linear-gradient(135deg, var(--bg-card) 0%, rgba(245,166,35,.04) 100%);
}
.review-card.featured::before {
  content: '🏆 Editor\'s Choice';
  position: absolute; top: -12px; left: 20px;
  background: var(--accent-gold); color: #000;
  padding: 2px 12px; border-radius: 99px;
  font-size: .75rem; font-weight: 700;
}
.review-card-header {
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 1rem; margin-bottom: 1rem;
}
.review-card-title { font-size: 1.25rem; font-weight: 800; }
.review-card-rank {
  background: var(--bg-primary); border: 1px solid var(--border-color);
  width: 40px; height: 40px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-weight: 800; color: var(--accent-gold); font-size: 1.1rem;
}
.review-card-body { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
@media (max-width: 600px) { .review-card-body { grid-template-columns: 1fr; } }
.review-card-info p { margin-bottom: .5rem; font-size: .9rem; }
.review-card-info .label { color: var(--text-muted); font-size: .8rem; }
.review-card-footer {
  display: flex; align-items: center; justify-content: space-between;
  margin-top: 1.25rem; padding-top: 1.25rem;
  border-top: 1px solid var(--border-light); flex-wrap: wrap; gap: .75rem;
}

/* ---------- Star Rating ---------- */
.stars { display: inline-flex; gap: 2px; color: var(--accent-gold); font-size: 1rem; }
.stars .empty { color: var(--text-muted); }
.rating-num { font-weight: 700; font-size: 1.1rem; color: var(--accent-gold); margin-left: 6px; }

/* ---------- Pros / Cons ---------- */
.pros-cons { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; margin: 1.5rem 0; }
@media (max-width: 600px) { .pros-cons { grid-template-columns: 1fr; } }
.pros, .cons {
  background: var(--bg-card); border-radius: var(--radius);
  padding: 1.25rem; border: 1px solid var(--border-color);
}
.pros h4, .cons h4 { font-size: .9rem; text-transform: uppercase; letter-spacing: .04em; margin-bottom: .75rem; }
.pros h4 { color: var(--accent-green); }
.pros h4::before { content: '✅ '; }
.cons h4 { color: var(--accent-red); }
.cons h4::before { content: '❌ '; }
.pros li, .cons li { font-size: .9rem; padding: 3px 0; color: var(--text-secondary); list-style: none; padding-left: 0; }
.pros ul, .cons ul { padding-left: 0; }
.pros li::before { content: '+ '; color: var(--accent-green); font-weight: 700; }
.cons li::before { content: '− '; color: var(--accent-red); font-weight: 700; }

/* ---------- CTA Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 24px; border-radius: var(--radius);
  font-weight: 700; font-size: .95rem; cursor: pointer;
  transition: all var(--transition); border: none; text-decoration: none;
}
.btn-primary {
  background: linear-gradient(135deg, var(--accent-green) 0%, var(--accent-green-dark) 100%);
  color: #000; box-shadow: 0 2px 8px rgba(0,210,106,.25);
}
.btn-primary:hover {
  transform: translateY(-1px); color: #000;
  box-shadow: 0 4px 16px rgba(0,210,106,.35);
}
.btn-secondary {
  background: transparent; border: 1px solid var(--border-color);
  color: var(--text-primary);
}
.btn-secondary:hover { border-color: var(--accent-green); color: var(--accent-green); }
.btn-gold {
  background: linear-gradient(135deg, var(--accent-gold) 0%, var(--accent-gold-dark) 100%);
  color: #000;
}
.btn-gold:hover { transform: translateY(-1px); color: #000; box-shadow: 0 4px 16px rgba(245,166,35,.3); }
.btn-sm { padding: 8px 16px; font-size: .85rem; }
.btn-lg { padding: 14px 32px; font-size: 1.05rem; }

/* ---------- Trust Badge ---------- */
.trust-badges {
  display: flex; flex-wrap: wrap; gap: 1rem; justify-content: center;
  margin: 2rem 0;
}
.trust-badge {
  display: flex; align-items: center; gap: 8px;
  background: var(--bg-card); border: 1px solid var(--border-color);
  padding: 10px 18px; border-radius: var(--radius); font-size: .85rem;
  color: var(--text-secondary);
}
.trust-badge .icon { font-size: 1.2rem; }

/* ---------- Bonus Card ---------- */
.bonus-card {
  background: var(--bg-card); border: 1px solid var(--border-color);
  border-radius: var(--radius-lg); padding: 1.25rem; text-align: center;
  transition: all var(--transition);
}
.bonus-card:hover { border-color: var(--accent-gold); box-shadow: var(--shadow); }
.bonus-card .amount { font-size: 1.5rem; font-weight: 800; color: var(--accent-gold); }
.bonus-card .site { font-weight: 700; margin: .5rem 0 .25rem; }
.bonus-card .desc { font-size: .85rem; color: var(--text-muted); margin-bottom: 1rem; }

/* Bonus Grid */
.bonus-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 1rem; margin: 1.5rem 0; }

/* ---------- FAQ ---------- */
.faq { margin: 2rem 0; }
.faq-item {
  border: 1px solid var(--border-color); border-radius: var(--radius);
  margin-bottom: .5rem; overflow: hidden;
}
.faq-question {
  width: 100%; background: var(--bg-card); border: none; color: var(--text-primary);
  padding: 16px 20px; font-size: 1rem; font-weight: 600;
  text-align: left; cursor: pointer; display: flex;
  justify-content: space-between; align-items: center;
  transition: background var(--transition);
}
.faq-question:hover { background: var(--bg-card-hover); }
.faq-question::after { content: '+'; font-size: 1.3rem; color: var(--accent-green); transition: transform var(--transition); }
.faq-item.active .faq-question::after { content: '−'; }
.faq-answer {
  max-height: 0; overflow: hidden; transition: max-height .3s ease;
  padding: 0 20px; color: var(--text-secondary); font-size: .95rem;
}
.faq-item.active .faq-answer { max-height: 500px; padding: 0 20px 16px; }

/* ---------- Info Box / Callout ---------- */
.info-box {
  background: rgba(0,210,106,.06); border: 1px solid rgba(0,210,106,.2);
  border-left: 4px solid var(--accent-green); border-radius: var(--radius);
  padding: 1.25rem; margin: 1.5rem 0;
}
.info-box.warning {
  background: rgba(245,166,35,.06); border-color: rgba(245,166,35,.2);
  border-left-color: var(--accent-gold);
}
.info-box.danger {
  background: rgba(248,81,73,.06); border-color: rgba(248,81,73,.2);
  border-left-color: var(--accent-red);
}
.info-box p { margin-bottom: 0; }

/* ---------- Feature Grid ---------- */
.feature-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 1.25rem; margin: 2rem 0; }
.feature-card {
  background: var(--bg-card); border: 1px solid var(--border-color);
  border-radius: var(--radius-lg); padding: 1.5rem; text-align: center;
  transition: all var(--transition);
}
.feature-card:hover { border-color: var(--accent-green); transform: translateY(-2px); }
.feature-card .icon { font-size: 2rem; margin-bottom: .75rem; }
.feature-card h3 { font-size: 1.05rem; margin-bottom: .5rem; margin-top: 0; }
.feature-card p { font-size: .9rem; margin-bottom: 0; }

/* ---------- Footer ---------- */
.footer {
  background: var(--bg-card); border-top: 1px solid var(--border-color);
  padding: 3rem 0 2rem; margin-top: 3rem;
}
.footer-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem; margin-bottom: 2rem;
}
.footer-col h4 { font-size: .9rem; text-transform: uppercase; letter-spacing: .04em; color: var(--text-primary); margin-bottom: 1rem; }
.footer-col ul { list-style: none; padding: 0; }
.footer-col li { padding: 4px 0; }
.footer-col a { color: var(--text-secondary); font-size: .9rem; }
.footer-col a:hover { color: var(--accent-green); }
.footer-bottom {
  border-top: 1px solid var(--border-color); padding-top: 1.5rem;
  text-align: center; color: var(--text-muted); font-size: .8rem;
}
.footer-bottom p { color: var(--text-muted); }
.responsible-gambling {
  background: rgba(248,81,73,.06); border: 1px solid rgba(248,81,73,.15);
  border-radius: var(--radius); padding: 1rem; margin-top: 1rem;
  font-size: .8rem; color: var(--text-muted);
}

/* ---------- Utilities ---------- */
.text-green { color: var(--accent-green); }
.text-gold { color: var(--accent-gold); }
.text-red { color: var(--accent-red); }
.text-muted { color: var(--text-muted); }
.text-center { text-align: center; }
.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: .5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.gap-1 { gap: .5rem; }
.gap-2 { gap: 1rem; }

/* Reading Time */
.reading-time { color: var(--text-muted); font-size: .85rem; margin-bottom: 1rem; }
.reading-time::before { content: '⏱ '; }

/* Tag / Badge */
.tag {
  display: inline-block; padding: 3px 10px; border-radius: 99px;
  font-size: .75rem; font-weight: 600;
}
.tag-green { background: rgba(0,210,106,.12); color: var(--accent-green); }
.tag-gold { background: rgba(245,166,35,.12); color: var(--accent-gold); }
.tag-red { background: rgba(248,81,73,.12); color: var(--accent-red); }

/* Updated date */
.updated-date { color: var(--text-muted); font-size: .85rem; margin-bottom: 1.5rem; }
.updated-date::before { content: '🔄 '; }

/* ---------- Step list ---------- */
.step-list { counter-reset: step; list-style: none; padding: 0; }
.step-list li {
  counter-increment: step; padding: 1rem 1rem 1rem 3.5rem;
  position: relative; background: var(--bg-card);
  border: 1px solid var(--border-color); border-radius: var(--radius);
  margin-bottom: .75rem;
}
.step-list li::before {
  content: counter(step);
  position: absolute; left: 1rem; top: 1rem;
  background: var(--accent-green); color: #000;
  width: 28px; height: 28px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-weight: 800; font-size: .85rem;
}

/* ---------- Payment Method Tags ---------- */
.payment-tags { display: flex; flex-wrap: wrap; gap: 6px; }
.payment-tag {
  background: var(--bg-primary); border: 1px solid var(--border-color);
  padding: 4px 10px; border-radius: 99px; font-size: .78rem; color: var(--text-secondary);
}

/* ---------- App Download Card ---------- */
.app-card {
  background: var(--bg-card); border: 1px solid var(--border-color);
  border-radius: var(--radius-lg); padding: 1.5rem;
  display: flex; gap: 1.5rem; align-items: center;
  margin-bottom: 1rem; transition: all var(--transition);
}
.app-card:hover { border-color: var(--accent-green); }
.app-card-icon { font-size: 2.5rem; flex-shrink: 0; }
.app-card-info { flex: 1; }
.app-card-info h3 { margin-top: 0; margin-bottom: .25rem; font-size: 1.1rem; }
.app-card-info p { font-size: .9rem; margin-bottom: .5rem; }
.app-card-actions { display: flex; gap: .5rem; flex-wrap: wrap; }

@media (max-width: 500px) {
  .app-card { flex-direction: column; text-align: center; }
  .app-card-actions { justify-content: center; }
}

/* ---------- Responsive Helpers ---------- */
@media (max-width: 768px) {
  section { padding: 2rem 0; }
  .hero { padding: 2.5rem 0 2rem; }
  .hero-stats { gap: 1.5rem; }
  .review-card { padding: 1.25rem; }
  h2 { margin-top: 2rem; }
}

/* ---------- Print ---------- */
@media print {
  .navbar, .hamburger, .mobile-menu, .btn, .footer { display: none; }
  body { background: #fff; color: #000; }
  a { color: #000; }
}