/*!
 * i8club - theme.css
 * Mobile-first gaming theme for i8club.cyou.
 * All custom classes use the g4bd- prefix per project spec.
 * Root font-size: 62.5% => 1rem = 10px for easy rem math.
 */

:root {
  /* Color tokens (dark background, light text) */
  --g4bd-primary: #2E4057;
  --g4bd-primary-700: #243345;
  --g4bd-primary-900: #18222e;
  --g4bd-bg: #18222e;
  --g4bd-bg-alt: #1f2c3c;
  --g4bd-surface: #243345;
  --g4bd-text: #F8F8FF;
  --g4bd-text-soft: #F0F8FF;
  --g4bd-muted: #A9A9A9;
  --g4bd-line: #4A4A4A;
  --g4bd-line-soft: #D3D3D3;
  --g4bd-accent: #ffcf3f;
  --g4bd-accent-700: #e6b530;
  --g4bd-accent-2: #ff5c8a;
  --g4bd-success: #3fdd9b;
  --g4bd-info: #4aa3ff;
  --g4bd-radius: 12px;
  --g4bd-radius-lg: 18px;
  --g4bd-shadow: 0 6px 22px rgba(0, 0, 0, .35);
  --g4bd-header-h: 64px;
  --g4bd-bottomnav-h: 64px;
}

* { box-sizing: border-box; }
html { font-size: 62.5%; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: "Segoe UI", "Helvetica Neue", Arial, "PingFang SC", sans-serif;
  background: var(--g4bd-bg);
  color: var(--g4bd-text);
  line-height: 1.5rem;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: var(--g4bd-accent); text-decoration: none; }
a:hover { color: var(--g4bd-accent-700); }
h1, h2, h3, h4 { margin: 0 0 1rem; line-height: 1.4; color: var(--g4bd-text); }
p { margin: 0 0 1.2rem; }

/* Layout primitives */
.g4bd-container {
  width: 100%;
  max-width: 430px;
  margin: 0 auto;
  padding: 0 1.2rem;
}
.g4bd-wrapper { min-height: 100vh; display: flex; flex-direction: column; }
.g4bd-main { flex: 1 0 auto; padding-bottom: 80px; }
.g4bd-section { padding: 2.4rem 0; }
.g4bd-section--alt { background: var(--g4bd-bg-alt); }
.g4bd-grid {
  display: grid;
  gap: 1rem;
}
.g4bd-hide-mobile { display: none; }

/* ===== Header ===== */
.g4bd-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--g4bd-header-h);
  background: linear-gradient(180deg, var(--g4bd-primary-900), var(--g4bd-primary-700));
  border-bottom: 1px solid var(--g4bd-line);
  z-index: 1000;
  box-shadow: 0 2px 10px rgba(0, 0, 0, .35);
}
.g4bd-header-inner {
  height: 100%;
  max-width: 430px;
  margin: 0 auto;
  padding: 0 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: .6rem;
}
.g4bd-brand {
  display: flex;
  align-items: center;
  gap: .6rem;
  min-width: 0;
}
.g4bd-brand img { width: 28px; height: 28px; border-radius: 6px; }
.g4bd-brand-text {
  font-size: 1.7rem;
  font-weight: 800;
  letter-spacing: .5px;
  color: var(--g4bd-accent);
  white-space: nowrap;
}
.g4bd-brand-text small { color: var(--g4bd-text-soft); font-weight: 500; font-size: 1rem; }

.g4bd-header-actions { display: flex; align-items: center; gap: .5rem; }
.g4bd-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .4rem;
  min-height: 38px;
  padding: 0 1.1rem;
  border: none;
  border-radius: 999px;
  font-size: 1.3rem;
  font-weight: 700;
  cursor: pointer;
  transition: transform .15s, filter .15s, background .15s;
  text-decoration: none;
  white-space: nowrap;
  font-family: inherit;
}
.g4bd-btn:active { transform: scale(.96); }
.g4bd-btn--login {
  background: transparent;
  color: var(--g4bd-text-soft);
  border: 1px solid var(--g4bd-line-soft);
}
.g4bd-btn--login:hover { background: rgba(255,255,255,.06); color: var(--g4bd-text); }
.g4bd-btn--register {
  background: linear-gradient(90deg, var(--g4bd-accent), var(--g4bd-accent-700));
  color: #2b1d00;
  box-shadow: 0 4px 14px rgba(255, 207, 63, .35);
}
.g4bd-btn--register:hover { filter: brightness(1.05); }
.g4bd-btn--ghost {
  background: transparent;
  color: var(--g4bd-accent);
  border: 1px solid var(--g4bd-accent);
}
.g4bd-btn--ghost:hover { background: rgba(255, 207, 63, .08); }
.g4bd-btn--block { display: flex; width: 100%; }

.g4bd-menu-toggle {
  width: 40px; height: 40px;
  background: transparent;
  border: 1px solid var(--g4bd-line);
  border-radius: 10px;
  color: var(--g4bd-text-soft);
  font-size: 1.6rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

/* Mobile dropdown menu */
.g4bd-mobile-menu {
  position: fixed;
  top: var(--g4bd-header-h);
  left: 0; right: 0;
  background: var(--g4bd-primary-900);
  border-bottom: 1px solid var(--g4bd-line);
  max-height: 0;
  overflow: hidden;
  transition: max-height .28s ease;
  z-index: 9999;
}
.g4bd-mobile-menu.g4bd-is-open { max-height: 80vh; overflow-y: auto; }
.g4bd-mobile-menu-inner { max-width: 430px; margin: 0 auto; padding: .8rem 1rem 1.2rem; }
.g4bd-mobile-menu a {
  display: flex;
  align-items: center;
  gap: .8rem;
  padding: .9rem .6rem;
  color: var(--g4bd-text-soft);
  font-size: 1.35rem;
  border-bottom: 1px dashed rgba(211, 211, 211, .15);
}
.g4bd-mobile-menu a:last-child { border-bottom: none; }
.g4bd-mobile-menu a i { color: var(--g4bd-accent); width: 22px; text-align: center; }

/* ===== Hero / Carousel ===== */
.g4bd-hero { padding-top: calc(var(--g4bd-header-h) + 1rem); }
.g4bd-carousel {
  position: relative;
  border-radius: var(--g4bd-radius-lg);
  overflow: hidden;
  box-shadow: var(--g4bd-shadow);
}
.g4bd-carousel-viewport { overflow: hidden; }
.g4bd-carousel-track {
  display: flex;
  transition: transform .45s ease;
  will-change: transform;
}
.g4bd-carousel-slide {
  flex: 0 0 100%;
  position: relative;
  cursor: pointer;
}
.g4bd-carousel-slide img {
  width: 100%;
  height: 180px;
  object-fit: cover;
}
.g4bd-carousel-cap {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  padding: 1rem 1.2rem;
  background: linear-gradient(0deg, rgba(0,0,0,.78), transparent);
  color: var(--g4bd-text);
}
.g4bd-carousel-cap strong { color: var(--g4bd-accent); font-size: 1.5rem; display: block; }
.g4bd-carousel-cap span { font-size: 1.15rem; color: var(--g4bd-text-soft); }
.g4bd-carousel-dots {
  position: absolute;
  bottom: 8px; left: 0; right: 0;
  display: flex;
  justify-content: center;
  gap: .5rem;
}
.g4bd-carousel-dots button {
  width: 8px; height: 8px;
  border-radius: 50%;
  border: none;
  background: rgba(255,255,255,.45);
  cursor: pointer;
  padding: 0;
}
.g4bd-carousel-dots button.g4bd-active { background: var(--g4bd-accent); width: 22px; border-radius: 6px; }
.g4bd-carousel-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 36px; height: 36px;
  border-radius: 50%;
  border: none;
  background: rgba(0,0,0,.45);
  color: #fff;
  font-size: 1.4rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}
.g4bd-carousel-arrow--prev { left: 8px; }
.g4bd-carousel-arrow--next { right: 8px; }

/* ===== Section heading ===== */
.g4bd-section-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.4rem;
}
.g4bd-section-head h2 { font-size: 1.9rem; margin: 0; }
.g4bd-section-head h2 .material-icons { color: var(--g4bd-accent); vertical-align: middle; font-size: 2rem; }
.g4bd-section-head .g4bd-link-more { font-size: 1.2rem; color: var(--g4bd-accent); font-weight: 700; }

/* ===== Game grid ===== */
.g4bd-game-block { margin-bottom: 2.4rem; }
.g4bd-game-block-title {
  font-size: 1.7rem;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: .6rem;
}
.g4bd-game-block-title .material-icons { color: var(--g4bd-accent); font-size: 2.1rem; }
.g4bd-game-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: .8rem;
}
.g4bd-game-card {
  display: block;
  background: var(--g4bd-surface);
  border: 1px solid var(--g4bd-line);
  border-radius: var(--g4bd-radius);
  overflow: hidden;
  cursor: pointer;
  transition: transform .15s, box-shadow .15s, border-color .15s;
  text-align: center;
  text-decoration: none;
  color: var(--g4bd-text);
}
.g4bd-game-card:hover, .g4bd-game-card:active {
  transform: translateY(-2px);
  border-color: var(--g4bd-accent);
  box-shadow: 0 6px 16px rgba(0,0,0,.3);
}
.g4bd-game-card img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  background: #0e1620;
}
.g4bd-game-card-name {
  font-size: 1.1rem;
  padding: .4rem .3rem .5rem;
  color: var(--g4bd-text-soft);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ===== Cards / panels ===== */
.g4bd-card {
  background: var(--g4bd-surface);
  border: 1px solid var(--g4bd-line);
  border-radius: var(--g4bd-radius-lg);
  padding: 1.4rem;
  box-shadow: var(--g4bd-shadow);
  margin-bottom: 1.4rem;
}
.g4bd-card h3 { color: var(--g4bd-accent); font-size: 1.6rem; }
.g4bd-card p { color: var(--g4bd-text-soft); font-size: 1.25rem; }
.g4bd-grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.g4bd-grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: .8rem; }

.g4bd-feature-item {
  background: var(--g4bd-bg-alt);
  border: 1px solid var(--g4bd-line);
  border-radius: var(--g4bd-radius);
  padding: 1rem;
  text-align: center;
}
.g4bd-feature-item .material-icons,
.g4bd-feature-item i { color: var(--g4bd-accent); font-size: 2.4rem; }
.g4bd-feature-item h4 { font-size: 1.3rem; margin: .4rem 0 .2rem; color: var(--g4bd-text); }
.g4bd-feature-item p { font-size: 1.1rem; color: var(--g4bd-muted); margin: 0; }

/* RTP compact table */
.g4bd-rtp-table { width: 100%; border-collapse: collapse; font-size: 1.2rem; }
.g4bd-rtp-table th, .g4bd-rtp-table td {
  padding: .7rem .6rem;
  border-bottom: 1px solid var(--g4bd-line);
  text-align: left;
  color: var(--g4bd-text-soft);
}
.g4bd-rtp-table th { color: var(--g4bd-accent); font-size: 1.15rem; }
.g4bd-rtp-table td .g4bd-pct { font-weight: 700; color: var(--g4bd-success); }
.g4bd-rtp-bar {
  height: 6px;
  border-radius: 4px;
  background: var(--g4bd-line);
  overflow: hidden;
  margin-top: .3rem;
}
.g4bd-rtp-bar span { display: block; height: 100%; background: linear-gradient(90deg, var(--g4bd-accent), var(--g4bd-success)); }

/* VIP / club tiers */
.g4bd-tier {
  display: flex;
  align-items: center;
  gap: .9rem;
  padding: .9rem;
  border-radius: var(--g4bd-radius);
  background: var(--g4bd-bg-alt);
  border: 1px solid var(--g4bd-line);
  margin-bottom: .8rem;
}
.g4bd-tier .g4bd-tier-badge {
  width: 42px; height: 42px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--g4bd-accent), var(--g4bd-accent-2));
  color: #2b1d00;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  flex-shrink: 0;
}
.g4bd-tier h4 { margin: 0; font-size: 1.3rem; color: var(--g4bd-text); }
.g4bd-tier p { margin: 0; font-size: 1.1rem; color: var(--g4bd-muted); }

/* Promotions */
.g4bd-promo {
  display: flex;
  gap: 1rem;
  padding: 1rem;
  border-radius: var(--g4bd-radius);
  background: linear-gradient(135deg, var(--g4bd-surface), var(--g4bd-bg-alt));
  border: 1px solid var(--g4bd-line);
  margin-bottom: 1rem;
  align-items: center;
}
.g4bd-promo .g4bd-promo-icon {
  width: 52px; height: 52px;
  flex-shrink: 0;
  border-radius: 12px;
  background: rgba(255, 207, 63, .15);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--g4bd-accent);
  font-size: 1.8rem;
}
.g4bd-promo h4 { margin: 0 0 .2rem; font-size: 1.3rem; color: var(--g4bd-text); }
.g4bd-promo p { margin: 0; font-size: 1.1rem; color: var(--g4bd-muted); }

/* Payment chips */
.g4bd-pay-chip {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .4rem;
  padding: .8rem .4rem;
  border-radius: var(--g4bd-radius);
  background: var(--g4bd-bg-alt);
  border: 1px solid var(--g4bd-line);
  font-size: 1.05rem;
  color: var(--g4bd-text-soft);
}
.g4bd-pay-chip i, .g4bd-pay-chip .material-icons { color: var(--g4bd-accent); font-size: 1.9rem; }

/* Testimonials */
.g4bd-testi {
  padding: 1rem;
  border-radius: var(--g4bd-radius);
  background: var(--g4bd-bg-alt);
  border-left: 3px solid var(--g4bd-accent);
  margin-bottom: 1rem;
}
.g4bd-testi p { font-size: 1.2rem; color: var(--g4bd-text-soft); margin: 0 0 .5rem; font-style: italic; }
.g4bd-testi .g4bd-testi-author { font-size: 1.1rem; color: var(--g4bd-accent); font-weight: 700; }

/* Winners */
.g4bd-winner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: .7rem .9rem;
  border-radius: 10px;
  background: var(--g4bd-bg-alt);
  border: 1px solid var(--g4bd-line);
  margin-bottom: .6rem;
  font-size: 1.15rem;
}
.g4bd-winner strong { color: var(--g4bd-success); }
.g4bd-winner span { color: var(--g4bd-muted); }

/* App download CTA */
.g4bd-app-cta {
  background: linear-gradient(135deg, var(--g4bd-primary-700), var(--g4bd-primary-900));
  border: 1px solid var(--g4bd-accent);
  border-radius: var(--g4bd-radius-lg);
  padding: 1.6rem;
  text-align: center;
  margin-bottom: 1.4rem;
}
.g4bd-app-cta h3 { color: var(--g4bd-accent); font-size: 1.7rem; }
.g4bd-app-cta p { color: var(--g4bd-text-soft); font-size: 1.2rem; }
.g4bd-app-cta .g4bd-btn { margin-top: .6rem; }

/* FAQ accordion */
.g4bd-accordion {
  border: 1px solid var(--g4bd-line);
  border-radius: var(--g4bd-radius);
  overflow: hidden;
  margin-bottom: .7rem;
  background: var(--g4bd-surface);
}
.g4bd-accordion-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 1.2rem;
  cursor: pointer;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--g4bd-text);
  background: var(--g4bd-bg-alt);
}
.g4bd-accordion-head i { color: var(--g4bd-accent); transition: transform .2s; }
.g4bd-accordion-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height .3s ease;
  padding: 0 1.2rem;
  color: var(--g4bd-text-soft);
  font-size: 1.15rem;
}
.g4bd-accordion.g4bd-is-open .g4bd-accordion-body { max-height: 320px; padding: 1rem 1.2rem; }
.g4bd-accordion.g4bd-is-open .g4bd-accordion-head i { transform: rotate(45deg); }

/* Play now CTA banner */
.g4bd-cta-banner {
  background: linear-gradient(90deg, var(--g4bd-accent), var(--g4bd-accent-2));
  color: #2b1d00;
  border-radius: var(--g4bd-radius-lg);
  padding: 1.6rem 1.2rem;
  text-align: center;
  margin: 1.4rem 0;
}
.g4bd-cta-banner h3 { color: #2b1d00; font-size: 1.7rem; }
.g4bd-cta-banner p { color: #3a2a00; font-size: 1.15rem; }
.g4bd-cta-banner .g4bd-btn {
  background: #2b1d00;
  color: var(--g4bd-accent);
  margin-top: .6rem;
}

/* Inline affiliate text link */
.g4bd-aff-link { color: var(--g4bd-accent); font-weight: 700; cursor: pointer; text-decoration: underline; }
.g4bd-aff-link:hover { color: var(--g4bd-accent-2); }

/* Back to top */
.g4bd-back-top {
  position: fixed;
  right: 14px;
  bottom: calc(var(--g4bd-bottomnav-h) + 14px);
  width: 44px; height: 44px;
  border-radius: 50%;
  background: var(--g4bd-accent);
  color: #2b1d00;
  border: none;
  font-size: 1.6rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: opacity .2s, transform .2s, visibility .2s;
  z-index: 900;
}
.g4bd-back-top.g4bd-is-visible { opacity: 1; visibility: visible; transform: translateY(0); }

/* ===== Footer ===== */
.g4bd-footer {
  background: var(--g4bd-primary-900);
  border-top: 1px solid var(--g4bd-line);
  padding: 2rem 0 1.4rem;
  color: var(--g4bd-text-soft);
}
.g4bd-footer-brand { font-size: 1.5rem; color: var(--g4bd-accent); font-weight: 800; margin-bottom: .4rem; }
.g4bd-footer-desc { font-size: 1.1rem; color: var(--g4bd-muted); margin-bottom: 1rem; line-height: 1.5; }
.g4bd-footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: .6rem .9rem;
  margin-bottom: 1rem;
}
.g4bd-footer-links a {
  font-size: 1.1rem;
  color: var(--g4bd-text-soft);
  padding: .35rem .6rem;
  border: 1px solid var(--g4bd-line);
  border-radius: 8px;
}
.g4bd-footer-links a:hover { border-color: var(--g4bd-accent); color: var(--g4bd-accent); }
.g4bd-footer-copy { font-size: 1rem; color: var(--g4bd-muted); border-top: 1px dashed var(--g4bd-line); padding-top: 1rem; }

/* ===== Mobile bottom nav ===== */
.g4bd-bottomnav {
  position: fixed;
  left: 0; right: 0; bottom: 0;
  height: var(--g4bd-bottomnav-h);
  background: linear-gradient(180deg, var(--g4bd-primary-700), var(--g4bd-primary-900));
  border-top: 1px solid var(--g4bd-line);
  display: flex;
  justify-content: space-around;
  align-items: stretch;
  z-index: 1000;
  box-shadow: 0 -2px 12px rgba(0,0,0,.4);
}
.g4bd-bottomnav a {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  color: var(--g4bd-text-soft);
  text-decoration: none;
  font-size: 1rem;
  min-width: 60px;
  min-height: 60px;
  position: relative;
  transition: color .15s;
}
.g4bd-bottomnav a i,
.g4bd-bottomnav a .material-icons {
  font-size: 24px;
  color: var(--g4bd-muted);
  transition: color .15s, transform .15s;
}
.g4bd-bottomnav a span { font-size: 1rem; }
.g4bd-bottomnav a:active i,
.g4bd-bottomnav a:active .material-icons { transform: scale(1.12); }
.g4bd-bottomnav a:hover i,
.g4bd-bottomnav a:hover .material-icons { color: var(--g4bd-accent); }
.g4bd-bottomnav a.g4bd-active i,
.g4bd-bottomnav a.g4bd-active .material-icons { color: var(--g4bd-accent); }
.g4bd-bottomnav a.g4bd-active { color: var(--g4bd-accent); }
.g4bd-bottomnav a.g4bd-active::before {
  content: "";
  position: absolute;
  top: 0; left: 50%;
  transform: translateX(-50%);
  width: 30px; height: 3px;
  background: var(--g4bd-accent);
  border-radius: 0 0 4px 4px;
}
.g4bd-bottomnav .g4bd-badge {
  position: absolute;
  top: 6px; right: 18px;
  min-width: 16px; height: 16px;
  padding: 0 4px;
  border-radius: 8px;
  background: var(--g4bd-accent-2);
  color: #fff;
  font-size: .9rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ===== Desktop: hide bottom nav, widen layout ===== */
@media (min-width: 769px) {
  .g4bd-bottomnav { display: none; }
  .g4bd-main { padding-bottom: 0; }
  .g4bd-container { max-width: 760px; }
  .g4bd-mobile-menu { display: none; }
  .g4bd-menu-toggle { display: none; }
  .g4bd-hide-mobile { display: block; }
  .g4bd-header-inner { max-width: 760px; }
  .g4bd-carousel-slide img { height: 320px; }
  .g4bd-game-grid { grid-template-columns: repeat(6, 1fr); }
  .g4bd-grid-2 { grid-template-columns: repeat(4, 1fr); }
  .g4bd-grid-3 { grid-template-columns: repeat(6, 1fr); }
}

@media (min-width: 431px) and (max-width: 768px) {
  .g4bd-container { max-width: 430px; }
  .g4bd-header-inner { max-width: 430px; }
}

/* Utility */
.g4bd-text-center { text-align: center; }
.g4bd-mt-1 { margin-top: .6rem; }
.g4bd-mt-2 { margin-top: 1.2rem; }
.g4bd-mb-0 { margin-bottom: 0; }
.g4bd-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;
}