/* =================================================================
   c186.homes - theme-ad8a.css
   Prefix: sad8-
   Palette: #D2691E (chocolate) / #DEB887 (sand) / #1E1E1E (dark) / #5D5D5D (grey)
   Mobile-first gaming portal (Vietnamese)
   ================================================================= */

:root {
  --sad8-primary: #D2691E;
  --sad8-primary-dark: #A0522D;
  --sad8-sand: #DEB887;
  --sad8-bg: #1E1E1E;
  --sad8-bg-2: #262320;
  --sad8-bg-3: #2F2A24;
  --sad8-grey: #5D5D5D;
  --sad8-text: #F5EBDD;
  --sad8-text-dim: #C8B79C;
  --sad8-accent: #F4B41A;
  --sad8-success: #4CAF50;
  --sad8-danger: #E04848;
  --sad8-radius: 14px;
  --sad8-radius-sm: 9px;
  --sad8-shadow: 0 6px 22px rgba(0, 0, 0, 0.45);
  --sad8-header-h: 60px;
  --sad8-nav-h: 62px;
}

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

html {
  font-size: 62.5%;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: "Be Vietnam Pro", "Segoe UI", system-ui, -apple-system, Arial, sans-serif;
  background: var(--sad8-bg);
  color: var(--sad8-text);
  line-height: 1.5rem;
  font-size: 1.5rem;
  max-width: 430px;
  margin: 0 auto;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a { color: var(--sad8-sand); text-decoration: none; }
a:hover { color: var(--sad8-accent); }
img { max-width: 100%; display: block; }

.sad8-container { width: 100%; max-width: 430px; margin: 0 auto; padding: 0 1.2rem; }
.sad8-wrapper { padding: 1rem 1.2rem; }

/* ===================== Header ===================== */
.sad8-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  max-width: 430px;
  margin: 0 auto;
  height: var(--sad8-header-h);
  background: linear-gradient(90deg, #1E1E1E 0%, #2F2A24 100%);
  border-bottom: 2px solid var(--sad8-primary);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 1rem;
  z-index: 1000;
  box-shadow: 0 2px 12px rgba(0,0,0,0.4);
}
.sad8-logo {
  display: flex; align-items: center; gap: 0.6rem;
  color: var(--sad8-text); font-weight: 800; font-size: 1.8rem;
}
.sad8-logo img { width: 32px; height: 32px; border-radius: 8px; }
.sad8-logo .sad8-tag {
  font-size: 1rem; color: var(--sad8-sand); font-weight: 600;
}
.sad8-header-actions { display: flex; align-items: center; gap: 0.5rem; }
.sad8-btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: 0.4rem;
  padding: 0.7rem 1.2rem;
  border-radius: var(--sad8-radius-sm);
  font-weight: 700; font-size: 1.4rem;
  border: none; cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, filter 0.15s ease;
  min-height: 38px;
}
.sad8-btn:active { transform: scale(0.96); }
.sad8-btn-primary {
  background: linear-gradient(135deg, var(--sad8-primary) 0%, var(--sad8-accent) 100%);
  color: #1E1E1E;
  box-shadow: 0 4px 12px rgba(210, 105, 30, 0.45);
}
.sad8-btn-secondary {
  background: transparent;
  color: var(--sad8-sand);
  border: 1.5px solid var(--sad8-sand);
}
.sad8-btn-ghost {
  background: rgba(222, 184, 135, 0.12);
  color: var(--sad8-text);
  border: 1px solid rgba(222, 184, 135, 0.25);
}
.sad8-icon-btn {
  background: transparent; border: none; color: var(--sad8-text);
  font-size: 2.2rem; cursor: pointer; padding: 0.4rem;
  min-width: 40px; min-height: 40px;
  display: inline-flex; align-items: center; justify-content: center;
}

/* ===================== Mobile Menu ===================== */
.sad8-menu-backdrop {
  position: fixed; inset: 0; background: rgba(0,0,0,0.6);
  z-index: 9998; opacity: 0; pointer-events: none;
  transition: opacity 0.25s ease;
}
.sad8-backdrop-show { opacity: 1; pointer-events: auto; }
.sad8-mobile-menu {
  position: fixed; top: 0; right: -85%;
  width: 80%; max-width: 340px; height: 100vh;
  background: var(--sad8-bg-2);
  z-index: 9999;
  padding: 2rem 1.5rem;
  transition: right 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  overflow-y: auto;
  border-left: 2px solid var(--sad8-primary);
}
.sad8-menu-open { right: 0; }
.sad8-menu-close {
  position: absolute; top: 1rem; right: 1rem;
  background: transparent; border: none; color: var(--sad8-text);
  font-size: 2.4rem; cursor: pointer;
}
.sad8-menu-title {
  font-size: 1.7rem; color: var(--sad8-primary); font-weight: 800;
  margin-bottom: 1.5rem; padding-bottom: 1rem;
  border-bottom: 1px solid rgba(222,184,135,0.2);
}
.sad8-mobile-menu ul { list-style: none; }
.sad8-mobile-menu li { margin-bottom: 0.4rem; }
.sad8-mobile-menu a {
  display: flex; align-items: center; gap: 0.8rem;
  padding: 1rem 0.8rem;
  color: var(--sad8-text); font-weight: 600;
  border-radius: var(--sad8-radius-sm);
  transition: background 0.15s ease;
}
.sad8-mobile-menu a:hover, .sad8-mobile-menu a:active {
  background: rgba(210,105,30,0.18); color: var(--sad8-sand);
}
.sad8-mobile-menu a i { color: var(--sad8-primary); width: 22px; text-align: center; }

/* ===================== Main ===================== */
.sad8-main { padding-top: calc(var(--sad8-header-h) + 8px); }
@media (max-width: 768px) {
  .sad8-main { padding-bottom: calc(var(--sad8-nav-h) + 16px); }
}

/* ===================== Hero ===================== */
.sad8-hero {
  position: relative; overflow: hidden;
  border-radius: var(--sad8-radius);
  margin: 1rem 1.2rem;
  aspect-ratio: 16/9;
  box-shadow: var(--sad8-shadow);
}
.sad8-slide {
  position: absolute; inset: 0; opacity: 0;
  transition: opacity 0.8s ease;
  cursor: pointer;
}
.sad8-slide img { width: 100%; height: 100%; object-fit: cover; }
.sad8-slide-active { opacity: 1; }
.sad8-slide-overlay {
  position: absolute; left: 0; right: 0; bottom: 0;
  padding: 1.2rem;
  background: linear-gradient(0deg, rgba(30,30,30,0.92) 0%, rgba(30,30,30,0) 100%);
}
.sad8-slide-title {
  font-size: 1.7rem; font-weight: 800; color: #fff;
  margin-bottom: 0.3rem;
}
.sad8-slide-desc { font-size: 1.25rem; color: var(--sad8-sand); }
.sad8-dots {
  position: absolute; bottom: 0.6rem; right: 1rem;
  display: flex; gap: 0.4rem;
}
.sad8-dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: rgba(255,255,255,0.4); cursor: pointer;
  transition: background 0.2s, transform 0.2s;
}
.sad8-dot-active { background: var(--sad8-accent); transform: scale(1.3); }

/* ===================== Section ===================== */
.sad8-section { padding: 1.5rem 1.2rem; }
.sad8-section-head {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 1rem;
}
.sad8-section-title {
  font-size: 1.85rem; font-weight: 800; color: var(--sad8-text);
  display: flex; align-items: center; gap: 0.6rem;
}
.sad8-section-title::before {
  content: ""; width: 5px; height: 1.8rem;
  background: linear-gradient(180deg, var(--sad8-primary), var(--sad8-accent));
  border-radius: 3px;
}
.sad8-section-link {
  font-size: 1.25rem; color: var(--sad8-sand); font-weight: 600;
}

/* ===================== Game grid ===================== */
.sad8-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.8rem;
}
.sad8-game-card {
  background: var(--sad8-bg-2);
  border-radius: var(--sad8-radius-sm);
  overflow: hidden;
  cursor: pointer;
  position: relative;
  border: 1px solid rgba(222,184,135,0.12);
  transition: transform 0.15s ease, box-shadow 0.15s ease, border-color 0.15s;
}
.sad8-game-card:hover, .sad8-game-card:active {
  transform: translateY(-3px);
  border-color: var(--sad8-primary);
  box-shadow: 0 8px 20px rgba(210,105,30,0.3);
}
.sad8-game-img {
  width: 100%; aspect-ratio: 1; object-fit: cover;
  background: #000;
}
.sad8-game-name {
  padding: 0.5rem 0.4rem;
  font-size: 1.15rem; font-weight: 600;
  color: var(--sad8-text);
  text-align: center;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.sad8-game-badge {
  position: absolute; top: 4px; left: 4px;
  background: var(--sad8-danger); color: #fff;
  font-size: 0.95rem; font-weight: 700;
  padding: 0.1rem 0.5rem; border-radius: 6px;
}
.sad8-game-badge.sad8-hot { background: var(--sad8-accent); color: #1E1E1E; }
.sad8-game-badge.sad8-new { background: var(--sad8-success); }

/* ===================== Category highlight ===================== */
.sad8-cat-row {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 0.8rem;
}
.sad8-cat-card {
  position: relative;
  border-radius: var(--sad8-radius);
  padding: 1.2rem;
  min-height: 100px;
  display: flex; flex-direction: column; justify-content: space-between;
  cursor: pointer;
  overflow: hidden;
  border: 1px solid rgba(222,184,135,0.2);
}
.sad8-cat-card.sad8-cat-slot { background: linear-gradient(135deg, #4A1F0E 0%, #D2691E 130%); }
.sad8-cat-card.sad8-cat-card-c { background: linear-gradient(135deg, #2A2418 0%, #8B6914 130%); }
.sad8-cat-card.sad8-cat-live { background: linear-gradient(135deg, #2E0F0F 0%, #8B2020 130%); }
.sad8-cat-card.sad8-cat-hot { background: linear-gradient(135deg, #3A1A04 0%, #B8651B 130%); }
.sad8-cat-card.sad8-cat-fish { background: linear-gradient(135deg, #0E2A3A 0%, #1F6F8B 130%); }
.sad8-cat-card .sad8-cat-icon { font-size: 2.4rem; color: #fff; }
.sad8-cat-card .sad8-cat-name { font-size: 1.5rem; font-weight: 800; color: #fff; margin-top: 0.4rem; }
.sad8-cat-card .sad8-cat-count { font-size: 1.1rem; color: rgba(255,255,255,0.85); }

/* ===================== Cards ===================== */
.sad8-card {
  background: var(--sad8-bg-2);
  border-radius: var(--sad8-radius);
  padding: 1.4rem;
  margin-bottom: 1rem;
  border: 1px solid rgba(222,184,135,0.12);
}
.sad8-card-title {
  font-size: 1.55rem; font-weight: 800; color: var(--sad8-sand);
  margin-bottom: 0.6rem;
}
.sad8-card p { color: var(--sad8-text-dim); font-size: 1.3rem; margin-bottom: 0.6rem; }
.sad8-card p strong, .sad8-card p b { color: var(--sad8-accent); font-weight: 700; }

/* Steps list */
.sad8-steps { list-style: none; counter-reset: step; }
.sad8-steps li {
  position: relative;
  padding: 0.8rem 0 0.8rem 3.4rem;
  counter-increment: step;
  border-bottom: 1px dashed rgba(222,184,135,0.18);
  font-size: 1.3rem; color: var(--sad8-text-dim);
}
.sad8-steps li:last-child { border-bottom: none; }
.sad8-steps li::before {
  content: counter(step);
  position: absolute; left: 0; top: 0.7rem;
  width: 2.6rem; height: 2.6rem;
  background: linear-gradient(135deg, var(--sad8-primary), var(--sad8-accent));
  color: #1E1E1E; font-weight: 800;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.3rem;
}

/* ===================== Stats ===================== */
.sad8-stats {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 0.8rem;
}
.sad8-stat {
  background: var(--sad8-bg-2);
  border-radius: var(--sad8-radius-sm);
  padding: 1rem; text-align: center;
  border: 1px solid rgba(222,184,135,0.15);
}
.sad8-stat-num {
  font-size: 2.2rem; font-weight: 800;
  color: var(--sad8-accent); display: block;
}
.sad8-stat-label { font-size: 1.15rem; color: var(--sad8-text-dim); }

/* ===================== Testimonial ===================== */
.sad8-testimonials { display: grid; gap: 0.8rem; }
.sad8-testimonial {
  background: var(--sad8-bg-2);
  border-left: 3px solid var(--sad8-primary);
  padding: 1rem 1.2rem;
  border-radius: 0 var(--sad8-radius-sm) var(--sad8-radius-sm) 0;
}
.sad8-testimonial p { font-style: italic; color: var(--sad8-text); font-size: 1.3rem; margin-bottom: 0.4rem; }
.sad8-testimonial .sad8-author { font-size: 1.15rem; color: var(--sad8-sand); font-weight: 600; }
.sad8-stars { color: var(--sad8-accent); font-size: 1.2rem; margin-bottom: 0.3rem; }

/* ===================== Payment ===================== */
.sad8-pay-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 0.6rem;
}
.sad8-pay-item {
  background: var(--sad8-bg-2);
  border-radius: var(--sad8-radius-sm);
  padding: 0.8rem 0.4rem;
  text-align: center;
  border: 1px solid rgba(222,184,135,0.15);
}
.sad8-pay-item i { font-size: 2.2rem; color: var(--sad8-sand); display: block; }
.sad8-pay-item span { font-size: 1.05rem; color: var(--sad8-text-dim); display: block; margin-top: 0.3rem; }

/* ===================== Winners ===================== */
.sad8-winner-list { display: grid; gap: 0.5rem; }
.sad8-winner {
  display: grid; grid-template-columns: 32px 1fr auto;
  align-items: center; gap: 0.8rem;
  padding: 0.7rem 0.9rem;
  background: var(--sad8-bg-2);
  border-radius: var(--sad8-radius-sm);
  border: 1px solid rgba(222,184,135,0.12);
}
.sad8-winner-avatar {
  width: 32px; height: 32px; border-radius: 50%;
  background: linear-gradient(135deg, var(--sad8-primary), var(--sad8-accent));
  color: #1E1E1E; font-weight: 800;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.3rem;
}
.sad8-winner-name { font-size: 1.25rem; color: var(--sad8-text); font-weight: 600; }
.sad8-winner-game { font-size: 1.05rem; color: var(--sad8-text-dim); }
.sad8-winner-amount { color: var(--sad8-success); font-weight: 800; font-size: 1.35rem; }

/* ===================== FAQ ===================== */
.sad8-faq-item {
  background: var(--sad8-bg-2);
  border-radius: var(--sad8-radius-sm);
  margin-bottom: 0.6rem;
  border: 1px solid rgba(222,184,135,0.12);
  overflow: hidden;
}
.sad8-faq-q {
  padding: 1rem 1.2rem;
  font-weight: 700; color: var(--sad8-text);
  font-size: 1.35rem; cursor: pointer;
  display: flex; justify-content: space-between; align-items: center;
}
.sad8-faq-a {
  padding: 0 1.2rem 1rem;
  color: var(--sad8-text-dim); font-size: 1.25rem;
}

/* ===================== App CTA ===================== */
.sad8-app-cta {
  background: radial-gradient(circle at top right, #4A1F0E 0%, var(--sad8-bg-2) 70%);
  border-radius: var(--sad8-radius);
  padding: 1.5rem; text-align: center;
  border: 1px solid rgba(210,105,30,0.3);
}
.sad8-app-cta h3 { font-size: 1.7rem; color: var(--sad8-accent); margin-bottom: 0.5rem; }
.sad8-app-cta p { color: var(--sad8-text-dim); font-size: 1.25rem; margin-bottom: 1rem; }
.sad8-app-buttons { display: flex; gap: 0.6rem; justify-content: center; flex-wrap: wrap; }

/* ===================== Promo banner inline ===================== */
.sad8-promo-link {
  color: var(--sad8-accent);
  font-weight: 700;
  text-decoration: underline;
  cursor: pointer;
}
.sad8-promo-link:hover { color: var(--sad8-primary); }

/* ===================== Footer ===================== */
.sad8-footer {
  background: var(--sad8-bg-2);
  border-top: 2px solid var(--sad8-primary);
  padding: 2rem 1.2rem 1rem;
  margin-top: 1.5rem;
}
.sad8-footer-brand {
  font-size: 1.8rem; font-weight: 800; color: var(--sad8-primary);
  margin-bottom: 0.6rem;
}
.sad8-footer-desc { color: var(--sad8-text-dim); font-size: 1.2rem; margin-bottom: 1rem; line-height: 1.6; }
.sad8-footer-cols {
  display: grid; grid-template-columns: 1fr 1fr; gap: 1rem;
  margin-bottom: 1rem;
}
.sad8-footer-col h4 {
  font-size: 1.3rem; color: var(--sad8-sand); margin-bottom: 0.6rem; font-weight: 700;
}
.sad8-footer-col ul { list-style: none; }
.sad8-footer-col li { margin-bottom: 0.4rem; }
.sad8-footer-col a { font-size: 1.15rem; color: var(--sad8-text-dim); }
.sad8-footer-promo {
  display: flex; flex-wrap: wrap; gap: 0.5rem; margin: 1rem 0;
}
.sad8-footer-promo button {
  flex: 1 1 45%;
  min-height: 38px;
}
.sad8-footer-bottom {
  text-align: center; padding-top: 1rem;
  border-top: 1px solid rgba(222,184,135,0.15);
  font-size: 1.1rem; color: var(--sad8-grey);
}

/* ===================== Mobile bottom nav ===================== */
.sad8-bottom-nav {
  position: fixed;
  bottom: 0; left: 0; right: 0;
  max-width: 430px; margin: 0 auto;
  height: var(--sad8-nav-h);
  background: linear-gradient(180deg, #2F2A24 0%, #1E1E1E 100%);
  border-top: 2px solid var(--sad8-primary);
  display: flex; justify-content: space-around; align-items: center;
  z-index: 1000;
  box-shadow: 0 -4px 18px rgba(0,0,0,0.5);
}
.sad8-nav-btn {
  flex: 1;
  background: transparent; border: none;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 2px;
  color: var(--sad8-text-dim);
  font-size: 1rem; font-weight: 600;
  height: 100%;
  min-width: 60px;
  padding: 0.4rem 0.2rem;
  cursor: pointer;
  position: relative;
  transition: color 0.2s ease, transform 0.2s ease;
}
.sad8-nav-btn .material-icons,
.sad8-nav-btn ion-icon,
.sad8-nav-btn i {
  font-size: 24px;
}
.sad8-nav-btn ion-icon { font-size: 26px; }
.sad8-nav-btn:active { transform: scale(0.92); }
.sad8-nav-btn.sad8-active {
  color: var(--sad8-accent);
}
.sad8-nav-btn.sad8-active::before {
  content: ""; position: absolute; top: 0;
  width: 30px; height: 3px;
  background: var(--sad8-accent);
  border-radius: 0 0 4px 4px;
}
.sad8-nav-btn.sad8-promo-btn {
  color: var(--sad8-sand);
}
.sad8-nav-btn.sad8-promo-btn i,
.sad8-nav-btn.sad8-promo-btn .material-icons {
  color: var(--sad8-primary);
}
.sad8-nav-btn.sad8-nav-badge::after {
  content: ""; position: absolute; top: 6px; right: 18px;
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--sad8-danger);
  border: 1.5px solid var(--sad8-bg);
}

/* ===================== Desktop ===================== */
@media (min-width: 769px) {
  body { max-width: 430px; border-left: 1px solid #000; border-right: 1px solid #000; }
  .sad8-bottom-nav { display: none; }
  .sad8-main { padding-bottom: 2rem; }
}

/* ===================== Utilities ===================== */
.sad8-text-center { text-align: center; }
.sad8-mt-1 { margin-top: 0.6rem; }
.sad8-mt-2 { margin-top: 1.2rem; }
.sad8-mb-1 { margin-bottom: 0.6rem; }
.sad8-mb-2 { margin-bottom: 1.2rem; }
.sad8-row { display: flex; align-items: center; gap: 0.6rem; }
.sad8-divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(222,184,135,0.4), transparent);
  margin: 1.2rem 0;
}
.sad8-chip {
  display: inline-block;
  padding: 0.3rem 0.8rem;
  border-radius: 999px;
  background: rgba(210,105,30,0.18);
  color: var(--sad8-sand);
  font-size: 1.1rem; font-weight: 600;
  margin: 0.2rem 0.3rem 0.2rem 0;
}
.sad8-back-top {
  position: fixed; right: 1rem; bottom: calc(var(--sad8-nav-h) + 12px);
  width: 42px; height: 42px; border-radius: 50%;
  background: var(--sad8-primary); color: #fff;
  border: none; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  z-index: 900; font-size: 1.8rem;
  box-shadow: 0 4px 12px rgba(0,0,0,0.4);
}