/**
 * pk7 link - Core Stylesheet (Base File)
 * Palette: #141414 (bg) | #D3D3D3 (text) | #E0FFFF (bright) | #48D1CC (accent)
 * Root font 62.5% so 1rem = 10px. Mobile-first; max-width 430px by default.
 * All custom classes use the "s4b7-" prefix.
 */

:root {
  --s4b7-bg: #141414;
  --s4b7-bg-2: #1c1c1c;
  --s4b7-bg-3: #262626;
  --s4b7-text: #D3D3D3;
  --s4b7-text-dim: #9a9a9a;
  --s4b7-text-bright: #E0FFFF;
  --s4b7-primary: #48D1CC;
  --s4b7-primary-dark: #2fa8a4;
  --s4b7-primary-glow: rgba(72, 209, 204, 0.35);
  --s4b7-gold: #f0c674;
  --s4b7-border: rgba(211, 211, 211, 0.12);
  --s4b7-shadow: 0 0.4rem 1.6rem rgba(0, 0, 0, 0.55);
  --s4b7-radius: 1rem;
  --s4b7-radius-sm: 0.6rem;
  --s4b7-max-w: 430px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 62.5%; -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
  background: radial-gradient(circle at top, #1a1a1a 0%, var(--s4b7-bg) 60%);
  color: var(--s4b7-text);
  font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
  font-size: 1.5rem;
  line-height: 2.25rem;
  letter-spacing: 0.02rem;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  padding-top: 6rem;
}

img { max-width: 100%; display: block; }
a { color: var(--s4b7-primary); text-decoration: none; }

/* ---------- Layout ---------- */
.s4b7-wrapper { width: 100%; max-width: var(--s4b7-max-w); margin: 0 auto; padding: 0 1.2rem; }
.s4b7-section { padding: 2.8rem 0; border-bottom: 0.1rem solid var(--s4b7-border); }
.s4b7-section-title {
  display: flex; align-items: center; gap: 0.8rem;
  font-size: 1.9rem; font-weight: 700;
  color: var(--s4b7-text-bright);
  margin-bottom: 1.2rem; letter-spacing: 0.03rem;
}
.s4b7-section-title i, .s4b7-section-title span.material-icons,
.s4b7-section-title span.material-icons-outlined { color: var(--s4b7-primary); font-size: 2.2rem; }
.s4b7-section-subtitle { font-size: 1.4rem; color: var(--s4b7-text-dim); margin-bottom: 1.6rem; }

/* ---------- Header ---------- */
.s4b7-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  background: linear-gradient(180deg, rgba(20,20,20,0.98) 0%, rgba(20,20,20,0.92) 100%);
  backdrop-filter: blur(8px);
  border-bottom: 0.1rem solid var(--s4b7-border);
}
.s4b7-header-inner {
  max-width: var(--s4b7-max-w); margin: 0 auto;
  padding: 0.8rem 1.2rem;
  display: flex; align-items: center; justify-content: space-between; gap: 0.8rem;
}
.s4b7-logo {
  display: flex; align-items: center; gap: 0.6rem;
  color: var(--s4b7-text-bright); font-weight: 800; font-size: 1.6rem; letter-spacing: 0.02rem;
}
.s4b7-logo img { width: 2.8rem; height: 2.8rem; border-radius: 0.6rem; }
.s4b7-logo span { color: var(--s4b7-primary); }
.s4b7-header-actions { display: flex; align-items: center; gap: 0.6rem; }

/* ---------- Buttons ---------- */
.s4b7-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem;
  min-height: 4rem; padding: 0 1.4rem;
  border-radius: 2rem; border: none;
  font-size: 1.35rem; font-weight: 700; cursor: pointer; font-family: inherit;
  transition: transform 0.15s ease, box-shadow 0.2s ease, background 0.2s;
  text-transform: uppercase; letter-spacing: 0.04rem;
}
.s4b7-btn-primary {
  background: linear-gradient(135deg, var(--s4b7-primary) 0%, var(--s4b7-primary-dark) 100%);
  color: #0a1f1e;
  box-shadow: 0 0.4rem 1.4rem var(--s4b7-primary-glow);
}
.s4b7-btn-primary:hover { transform: translateY(-0.1rem); }
.s4b7-btn-ghost {
  background: transparent; color: var(--s4b7-text-bright);
  border: 0.12rem solid var(--s4b7-primary);
}
.s4b7-btn-sm { min-height: 3.2rem; padding: 0 1rem; font-size: 1.2rem; }
.s4b7-btn-block { display: flex; width: 100%; }
.s4b7-icon-btn {
  display: inline-flex; align-items: center; justify-content: center;
  width: 4rem; height: 4rem;
  background: transparent; border: 0.1rem solid var(--s4b7-border);
  border-radius: 0.8rem; color: var(--s4b7-text-bright);
  font-size: 1.8rem; cursor: pointer;
}

/* ---------- Mobile Menu Drawer ---------- */
.s4b7-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;
}
.s4b7-menu-backdrop.s4b7-menu-open { opacity: 1; pointer-events: auto; }
.s4b7-mobile-menu {
  position: fixed; top: 0; right: -85%;
  width: 80%; max-width: 32rem; height: 100vh;
  background: var(--s4b7-bg-2); z-index: 9999;
  padding: 6rem 1.6rem 2rem; overflow-y: auto;
  transition: right 0.3s ease;
  border-left: 0.1rem solid var(--s4b7-border);
}
.s4b7-mobile-menu.s4b7-menu-open { right: 0; }
.s4b7-mobile-menu h3 {
  color: var(--s4b7-text-bright); font-size: 1.3rem;
  margin: 1.6rem 0 0.8rem;
  letter-spacing: 0.1rem; text-transform: uppercase; opacity: 0.7;
}
.s4b7-mobile-menu a {
  display: block; padding: 1rem 0.4rem;
  color: var(--s4b7-text);
  border-bottom: 0.1rem solid var(--s4b7-border);
  font-size: 1.4rem;
}
.s4b7-mobile-menu a:hover { color: var(--s4b7-primary); }
.s4b7-menu-close {
  position: absolute; top: 1.2rem; right: 1.2rem;
  background: transparent; border: none;
  color: var(--s4b7-text-bright); font-size: 2rem; cursor: pointer;
}

/* ---------- Hero / Carousel ---------- */
.s4b7-carousel {
  position: relative; border-radius: var(--s4b7-radius);
  overflow: hidden; margin-bottom: 1.6rem; box-shadow: var(--s4b7-shadow);
}
.s4b7-slide { position: relative; display: none; }
.s4b7-slide.s4b7-slide-active { display: block; }
.s4b7-slide img { width: 100%; aspect-ratio: 16/9; object-fit: cover; }
.s4b7-slide-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(20,20,20,0.1) 30%, rgba(20,20,20,0.85) 100%);
  display: flex; flex-direction: column; justify-content: flex-end; padding: 1.6rem;
}
.s4b7-slide-title { color: var(--s4b7-text-bright); font-size: 2rem; font-weight: 800; margin-bottom: 0.4rem; }
.s4b7-slide-desc { color: var(--s4b7-text); font-size: 1.3rem; margin-bottom: 1rem; }
.s4b7-dots {
  position: absolute; bottom: 1rem; left: 50%; transform: translateX(-50%);
  display: flex; gap: 0.5rem; z-index: 2;
}
.s4b7-dot {
  width: 0.8rem; height: 0.8rem; border-radius: 50%;
  background: rgba(211,211,211,0.4); border: none; cursor: pointer;
}
.s4b7-dot.s4b7-dot-active { background: var(--s4b7-primary); }

/* ---------- Promo / CTA Banner ---------- */
.s4b7-cta-banner {
  background: linear-gradient(135deg, #1c1c1c 0%, #2a2a2a 100%);
  border: 0.1rem solid var(--s4b7-primary);
  border-radius: var(--s4b7-radius);
  padding: 1.6rem; text-align: center; margin-bottom: 1.6rem;
}
.s4b7-cta-banner h2 { color: var(--s4b7-text-bright); font-size: 1.8rem; margin-bottom: 0.5rem; }
.s4b7-cta-banner p { color: var(--s4b7-text-dim); font-size: 1.3rem; margin-bottom: 1.2rem; }

/* ---------- Game Grid ---------- */
.s4b7-game-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0.8rem; }
.s4b7-game-card {
  background: var(--s4b7-bg-3); border-radius: var(--s4b7-radius-sm);
  overflow: hidden; cursor: pointer; position: relative;
  transition: transform 0.15s, box-shadow 0.2s;
  border: 0.1rem solid var(--s4b7-border); display: block;
}
.s4b7-game-card:hover {
  transform: translateY(-0.2rem);
  box-shadow: 0 0.5rem 1.2rem var(--s4b7-primary-glow);
  border-color: var(--s4b7-primary);
}
.s4b7-game-card img { width: 100%; aspect-ratio: 1/1; object-fit: cover; }
.s4b7-game-card-name {
  padding: 0.5rem 0.4rem; font-size: 1.1rem; color: var(--s4b7-text);
  text-align: center; white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}

/* ---------- Info / Feature Cards ---------- */
.s4b7-card {
  background: var(--s4b7-bg-2);
  border: 0.1rem solid var(--s4b7-border);
  border-radius: var(--s4b7-radius-sm);
  padding: 1.4rem; margin-bottom: 1rem;
}
.s4b7-card h3 {
  color: var(--s4b7-text-bright); font-size: 1.5rem; margin-bottom: 0.6rem;
  display: flex; align-items: center; gap: 0.6rem;
}
.s4b7-card h3 i, .s4b7-card h3 span.material-icons,
.s4b7-card h3 span.material-icons-outlined { color: var(--s4b7-primary); font-size: 1.8rem; }
.s4b7-card p { color: var(--s4b7-text); font-size: 1.35rem; line-height: 1.6; }
.s4b7-feature-grid { display: grid; grid-template-columns: 1fr; gap: 1rem; }

/* ---------- Step List ---------- */
.s4b7-step-list { display: flex; flex-direction: column; gap: 0.8rem; list-style: none; }
.s4b7-step {
  display: flex; gap: 1rem; align-items: flex-start;
  background: var(--s4b7-bg-2); padding: 1rem;
  border-radius: var(--s4b7-radius-sm); border-left: 0.3rem solid var(--s4b7-primary);
}
.s4b7-step-num {
  flex-shrink: 0; width: 2.6rem; height: 2.6rem; border-radius: 50%;
  background: var(--s4b7-primary); color: #0a1f1e; font-weight: 800;
  display: flex; align-items: center; justify-content: center; font-size: 1.3rem;
}

/* ---------- RTP Table ---------- */
.s4b7-rtp-table {
  width: 100%; border-collapse: collapse;
  background: var(--s4b7-bg-2);
  border-radius: var(--s4b7-radius-sm);
  overflow: hidden; font-size: 1.3rem;
}
.s4b7-rtp-table th, .s4b7-rtp-table td {
  padding: 0.9rem 0.8rem; text-align: left;
  border-bottom: 0.1rem solid var(--s4b7-border);
}
.s4b7-rtp-table th {
  background: var(--s4b7-bg-3); color: var(--s4b7-text-bright);
  font-weight: 700; font-size: 1.2rem;
  text-transform: uppercase; letter-spacing: 0.05rem;
}
.s4b7-rtp-bar {
  display: inline-block; height: 0.8rem;
  background: linear-gradient(90deg, var(--s4b7-primary-dark), var(--s4b7-primary));
  border-radius: 0.4rem; vertical-align: middle;
}

/* ---------- FAQ ---------- */
.s4b7-faq-item {
  background: var(--s4b7-bg-2);
  border: 0.1rem solid var(--s4b7-border);
  border-radius: var(--s4b7-radius-sm);
  margin-bottom: 0.8rem; overflow: hidden;
}
.s4b7-faq-q {
  display: flex; justify-content: space-between; align-items: center;
  padding: 1.2rem; cursor: pointer;
  color: var(--s4b7-text-bright); font-weight: 600; font-size: 1.4rem;
}
.s4b7-faq-a {
  max-height: 0; overflow: hidden;
  transition: max-height 0.25s ease, padding 0.25s ease;
  padding: 0 1.2rem; color: var(--s4b7-text); font-size: 1.3rem;
}
.s4b7-faq-item.s4b7-faq-open .s4b7-faq-a { max-height: 30rem; padding: 0 1.2rem 1.2rem; }

/* ---------- Testimonials ---------- */
.s4b7-testimonial-grid { display: grid; grid-template-columns: 1fr; gap: 1rem; }
.s4b7-testimonial {
  background: var(--s4b7-bg-2); padding: 1.2rem;
  border-radius: var(--s4b7-radius-sm); border-left: 0.3rem solid var(--s4b7-gold);
}
.s4b7-testimonial-stars { color: var(--s4b7-gold); margin-bottom: 0.4rem; font-size: 1.2rem; }
.s4b7-testimonial p { color: var(--s4b7-text); font-size: 1.3rem; margin-bottom: 0.6rem; }
.s4b7-testimonial-author { color: var(--s4b7-primary); font-size: 1.2rem; font-weight: 600; }

/* ---------- Winners Strip ---------- */
.s4b7-winners { background: var(--s4b7-bg-2); border-radius: var(--s4b7-radius-sm); padding: 0.8rem; }
.s4b7-winner-row {
  display: flex; justify-content: space-between; align-items: center;
  padding: 0.6rem 0; border-bottom: 0.1rem dashed var(--s4b7-border); font-size: 1.3rem;
}
.s4b7-winner-row:last-child { border-bottom: none; }
.s4b7-winner-amount { color: var(--s4b7-gold); font-weight: 700; }

/* ---------- Payment Methods ---------- */
.s4b7-pay-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0.6rem; }
.s4b7-pay-item {
  background: var(--s4b7-bg-2); border: 0.1rem solid var(--s4b7-border);
  border-radius: var(--s4b7-radius-sm);
  padding: 0.8rem; text-align: center;
  font-size: 1.15rem; color: var(--s4b7-text);
}
.s4b7-pay-item i { font-size: 2rem; color: var(--s4b7-primary); display: block; margin-bottom: 0.3rem; }

/* ---------- Footer ---------- */
.s4b7-footer {
  background: var(--s4b7-bg-2);
  padding: 2.4rem 0 9rem;
  border-top: 0.1rem solid var(--s4b7-border);
  margin-top: 2rem;
}
.s4b7-footer-brand { color: var(--s4b7-text-bright); font-weight: 800; font-size: 1.6rem; margin-bottom: 0.6rem; }
.s4b7-footer-brand span { color: var(--s4b7-primary); }
.s4b7-footer-desc { color: var(--s4b7-text-dim); font-size: 1.25rem; line-height: 1.6; margin-bottom: 1.2rem; }
.s4b7-footer-promos {
  display: grid; grid-template-columns: repeat(2, 1fr);
  gap: 0.6rem; margin-bottom: 1.6rem;
}
.s4b7-footer-promos .s4b7-btn { min-height: 3.4rem; font-size: 1.15rem; }
.s4b7-footer-links {
  display: flex; flex-wrap: wrap;
  gap: 0.6rem 1rem; font-size: 1.2rem; margin-bottom: 1.2rem;
}
.s4b7-footer-links a { color: var(--s4b7-text-dim); }
.s4b7-footer-links a:hover { color: var(--s4b7-primary); }
.s4b7-footer-copy {
  text-align: center; color: var(--s4b7-text-dim);
  font-size: 1.15rem; padding-top: 1rem;
  border-top: 0.1rem solid var(--s4b7-border); line-height: 1.6;
}

/* ---------- Bottom Nav (mobile only) ---------- */
.s4b7-bottom-nav {
  position: fixed; bottom: 0; left: 0; right: 0;
  height: 6.2rem;
  background: linear-gradient(180deg, var(--s4b7-bg-3) 0%, var(--s4b7-bg) 100%);
  border-top: 0.15rem solid var(--s4b7-primary);
  display: flex; justify-content: space-around; align-items: stretch;
  z-index: 1000; padding-bottom: env(safe-area-inset-bottom, 0);
}
.s4b7-bottom-nav-btn {
  flex: 1; min-width: 6rem; min-height: 6rem;
  background: transparent; border: none; color: var(--s4b7-text-dim);
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 0.2rem; cursor: pointer; font-size: 1.05rem; font-family: inherit;
  transition: color 0.2s, transform 0.15s; position: relative; text-decoration: none;
}
.s4b7-bottom-nav-btn i, .s4b7-bottom-nav-btn span.material-icons,
.s4b7-bottom-nav-btn ion-icon {
  font-size: 2.2rem; transition: transform 0.2s;
}
.s4b7-bottom-nav-btn:hover, .s4b7-bottom-nav-btn-active { color: var(--s4b7-primary); }
.s4b7-bottom-nav-btn-active::before {
  content: ''; position: absolute; top: 0; left: 50%; transform: translateX(-50%);
  width: 2.4rem; height: 0.25rem;
  background: var(--s4b7-primary); border-radius: 0 0 0.4rem 0.4rem;
}
.s4b7-bottom-nav-btn:active i { transform: scale(0.88); }

/* ---------- Utilities ---------- */
.s4b7-text-primary { color: var(--s4b7-primary); }
.s4b7-text-bright { color: var(--s4b7-text-bright); }
.s4b7-text-gold { color: var(--s4b7-gold); }
.s4b7-text-center { text-align: center; }
.s4b7-mt-1 { margin-top: 0.6rem; }
.s4b7-mt-2 { margin-top: 1.2rem; }
.s4b7-mb-2 { margin-bottom: 1.2rem; }
.s4b7-p-content { font-size: 1.35rem; line-height: 1.7; color: var(--s4b7-text); }
.s4b7-p-content strong { color: var(--s4b7-text-bright); }

/* Mobile bottom padding for content above fixed nav */
main { padding-bottom: 8rem; }

/* ---------- Responsive: desktop ---------- */
@media (min-width: 769px) {
  .s4b7-bottom-nav { display: none; }
  body { padding-top: 0; }
  main { padding-bottom: 2rem; }
  .s4b7-wrapper { max-width: 760px; }
  .s4b7-game-grid { grid-template-columns: repeat(6, 1fr); }
  .s4b7-pay-grid { grid-template-columns: repeat(6, 1fr); }
  .s4b7-feature-grid { grid-template-columns: repeat(2, 1fr); }
  .s4b7-testimonial-grid { grid-template-columns: repeat(2, 1fr); }
  .s4b7-footer-promos { grid-template-columns: repeat(4, 1fr); }
}