* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: 'Segoe UI', Tahoma, Arial, sans-serif; background: #f4f5f7; color: #1a1d24; line-height: 1.6; font-size: 14px; }
a { text-decoration: none; color: inherit; }
img { max-width: 100%; height: auto; display: block; }

/* Header */
.top-bar { background: #0a0e1a; color: #cdd3dc; font-size: 12px; padding: 6px 0; border-bottom: 1px solid #1d2230; }
.top-bar-inner { max-width: 1400px; margin: 0 auto; padding: 0 16px; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 8px; }
.top-bar a { color: #cdd3dc; }
.top-bar .top-links span { margin-right: 12px; opacity: .85; }

header.site-header { background: #ffffff; border-bottom: 1px solid #e5e7eb; position: sticky; top: 0; z-index: 999; box-shadow: 0 1px 4px rgba(0,0,0,.04); }
.header-inner { max-width: 1400px; margin: 0 auto; padding: 10px 16px; display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.logo { font-size: 28px; font-weight: 900; color: #d4001a; letter-spacing: -1px; text-transform: lowercase; padding: 4px 10px; border: 2px solid #d4001a; border-radius: 6px; background: linear-gradient(180deg, #fff 0%, #fff4f5 100%); }

nav.main-nav ul { list-style: none; display: flex; gap: 4px; flex-wrap: wrap; }
nav.main-nav a { display: block; padding: 10px 16px; color: #2c3340; font-weight: 600; border-radius: 4px; transition: all .2s; font-size: 14px; }
nav.main-nav a:hover { background: #f1f3f6; color: #d4001a; }
nav.main-nav a.active { color: #d4001a; background: #fff4f5; }

.header-cta { display: flex; gap: 8px; align-items: center; }
.btn { display: inline-block; padding: 9px 20px; font-weight: 700; border-radius: 4px; font-size: 13px; cursor: pointer; transition: all .2s; border: none; text-align: center; }
.btn-login { background: #ffffff; color: #d4001a; border: 1.5px solid #d4001a; }
.btn-login:hover { background: #fff4f5; }
.btn-register { background: #d4001a; color: #fff; }
.btn-register:hover { background: #b40016; }

/* Hero */
.hero { background: linear-gradient(135deg, #0a0e1a 0%, #1a2138 60%, #2a1338 100%); color: #fff; padding: 50px 16px; position: relative; overflow: hidden; }
.hero-inner { max-width: 1200px; margin: 0 auto; display: grid; grid-template-columns: 1.1fr 1fr; gap: 40px; align-items: center; }
.hero h1 { font-size: 38px; line-height: 1.2; margin-bottom: 18px; font-weight: 800; }
.hero h1 span { color: #ffb800; }
.hero p.lead { font-size: 16px; color: #d8dde6; margin-bottom: 24px; }
.hero-cta { display: flex; gap: 12px; flex-wrap: wrap; }
.hero-cta .btn-register { padding: 12px 28px; font-size: 15px; }
.hero-stats { display: flex; gap: 24px; margin-top: 28px; flex-wrap: wrap; }
.hero-stat { background: rgba(255,255,255,.06); padding: 10px 14px; border-radius: 6px; border-left: 3px solid #ffb800; }
.hero-stat strong { display: block; color: #ffb800; font-size: 18px; }
.hero-stat span { font-size: 12px; opacity: .85; }
.hero-image { text-align: center; }
.hero-image img { display: inline-block; max-height: 360px; border-radius: 12px; box-shadow: 0 12px 40px rgba(0,0,0,.4); }

/* Section common */
section.block { padding: 50px 16px; }
.container { max-width: 1200px; margin: 0 auto; }
.section-title { font-size: 24px; font-weight: 800; color: #1a1d24; margin-bottom: 8px; }
.section-sub { color: #5a6271; font-size: 14px; margin-bottom: 28px; max-width: 720px; }

/* Sports table style (mô phỏng giao diện cá cược) */
.sports-section { background: #fff; }
.sport-tabs { display: flex; gap: 4px; border-bottom: 2px solid #e5e7eb; margin-bottom: 16px; overflow-x: auto; }
.sport-tab { padding: 12px 18px; font-size: 13px; font-weight: 700; color: #5a6271; cursor: pointer; white-space: nowrap; border-bottom: 3px solid transparent; }
.sport-tab.active { color: #d4001a; border-bottom-color: #d4001a; }

.match-list { background: #ffffff; border: 1px solid #e5e7eb; border-radius: 6px; overflow: hidden; }
.match-row { display: grid; grid-template-columns: 1fr auto auto auto; gap: 8px; padding: 12px 14px; border-bottom: 1px solid #eef0f3; align-items: center; font-size: 13px; }
.match-row:last-child { border-bottom: none; }
.match-row:hover { background: #fafbfc; }
.match-teams { font-weight: 600; color: #1a1d24; }
.match-teams small { display: block; color: #8a909b; font-weight: 400; font-size: 11px; margin-top: 2px; }
.odd-btn { background: #eef0f3; padding: 8px 14px; border-radius: 4px; font-weight: 700; color: #1a1d24; min-width: 60px; text-align: center; font-size: 13px; cursor: pointer; transition: all .2s; }
.odd-btn:hover { background: #d4001a; color: #fff; }
.odd-btn small { display: block; font-weight: 400; font-size: 10px; color: #8a909b; margin-bottom: 2px; }
.odd-btn:hover small { color: #ffd7dc; }

/* Casino grid */
.casino-section { background: #f4f5f7; }
.casino-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(170px, 1fr)); gap: 14px; }
.game-card { background: #fff; border-radius: 8px; overflow: hidden; box-shadow: 0 1px 3px rgba(0,0,0,.06); transition: all .25s; cursor: pointer; }
.game-card:hover { transform: translateY(-3px); box-shadow: 0 6px 18px rgba(0,0,0,.12); }
.game-card img { width: 100%; aspect-ratio: 1/1; object-fit: cover; }
.game-info { padding: 10px; }
.game-info h4 { font-size: 13px; font-weight: 700; color: #1a1d24; margin-bottom: 4px; }
.game-info p { font-size: 11px; color: #8a909b; }

/* Promo banner */
.promo-section { background: #fff; }
.promo-grid { display: grid; grid-template-columns: 1.4fr 1fr; gap: 20px; align-items: center; background: linear-gradient(135deg, #d4001a 0%, #8b0014 100%); border-radius: 12px; padding: 30px; color: #fff; overflow: hidden; }
.promo-text h2 { font-size: 28px; margin-bottom: 10px; }
.promo-text p { font-size: 14px; opacity: .92; margin-bottom: 16px; }
.promo-text .btn { background: #ffb800; color: #1a1d24; padding: 12px 26px; font-size: 14px; }
.promo-image img { max-height: 240px; border-radius: 8px; margin-left: auto; }

/* Features */
.features-section { background: #f4f5f7; }
.features-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 18px; }
.feature-card { background: #fff; padding: 22px; border-radius: 8px; border-top: 3px solid #d4001a; }
.feature-card h3 { font-size: 16px; margin-bottom: 8px; color: #1a1d24; }
.feature-card p { font-size: 13px; color: #5a6271; }

/* Content article */
.content-section { background: #fff; padding: 50px 16px; }
.content-section .container { max-width: 1000px; }
.content-section h2 { font-size: 22px; margin: 28px 0 12px; color: #1a1d24; }
.content-section h3 { font-size: 17px; margin: 20px 0 8px; color: #2c3340; }
.content-section h4 { font-size: 15px; margin: 14px 0 6px; color: #2c3340; }
.content-section p { color: #3d4452; margin-bottom: 12px; font-size: 14px; }
.content-section ul { margin: 8px 0 14px 22px; color: #3d4452; font-size: 14px; }
.content-section ul li { margin-bottom: 6px; }

.testimonial { background: #fffaf0; border-left: 4px solid #ffb800; padding: 16px 18px; margin: 20px 0; border-radius: 0 6px 6px 0; font-style: italic; color: #4a3a10; }

/* FAQ */
.faq-section { background: #f4f5f7; }
.faq-item { background: #fff; border-radius: 6px; padding: 16px 20px; margin-bottom: 10px; border: 1px solid #e5e7eb; }
.faq-item h4 { font-size: 15px; color: #1a1d24; margin-bottom: 8px; }
.faq-item p { color: #5a6271; font-size: 13.5px; }

/* Payment partners */
.partners-section { background: #fff; padding: 30px 16px; border-top: 1px solid #e5e7eb; }
.partners-bar { display: flex; gap: 18px; align-items: center; justify-content: center; flex-wrap: wrap; opacity: .85; }
.partners-bar img { max-height: 56px; width: auto; filter: grayscale(20%); }

/* Footer */
footer.site-footer { background: #0a0e1a; color: #b8bcc7; padding: 40px 16px 20px; }
.footer-inner { max-width: 1400px; margin: 0 auto; display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 30px; }
.footer-col h5 { color: #fff; font-size: 14px; margin-bottom: 14px; font-weight: 700; }
.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 8px; }
.footer-col a { color: #b8bcc7; font-size: 13px; }
.footer-col a:hover { color: #ffb800; }
.footer-col p { font-size: 13px; line-height: 1.7; }
.footer-bottom { max-width: 1400px; margin: 30px auto 0; padding-top: 18px; border-top: 1px solid #1d2230; text-align: center; font-size: 12px; color: #6c727f; }
.footer-bottom strong { color: #ffb800; }

/* Responsive */
@media (max-width: 900px) {
  .hero-inner { grid-template-columns: 1fr; gap: 24px; text-align: center; }
  .hero h1 { font-size: 28px; }
  .hero-cta, .hero-stats { justify-content: center; }
  .promo-grid { grid-template-columns: 1fr; text-align: center; }
  .promo-image img { margin: 0 auto; }
  .footer-inner { grid-template-columns: 1fr 1fr; }
  .header-inner { padding: 8px 12px; }
  nav.main-nav { order: 3; width: 100%; }
  nav.main-nav ul { justify-content: center; }
  nav.main-nav a { padding: 8px 10px; font-size: 13px; }
}
@media (max-width: 560px) {
  .hero { padding: 30px 14px; }
  .hero h1 { font-size: 24px; }
  .section-title { font-size: 20px; }
  .footer-inner { grid-template-columns: 1fr; }
  .match-row { grid-template-columns: 1fr 1fr; gap: 6px; }
  .odd-btn { min-width: auto; padding: 6px 10px; font-size: 12px; }
  .header-cta .btn { padding: 7px 12px; font-size: 12px; }
  .logo { font-size: 22px; }
}