/* ==========================================================================
   nustar casino - Core Stylesheet
   Class prefix: s4da-
   Palette: #40E0D0 (teal/primary) | #F0F0F0 (light text) | #2E4057 (dark bg) | #FF5722 (accent)
   Mobile-first, max-width 430px, root font 62.5% (1rem = 10px).
   ========================================================================== */

:root {
  --s4da-primary: #40E0D0;
  --s4da-bg: #2E4057;
  --s4da-bg-deep: #1f2d3f;
  --s4da-bg-soft: #35506b;
  --s4da-text: #F0F0F0;
  --s4da-text-muted: #c7d2dc;
  --s4da-accent: #FF5722;
  --s4da-accent-soft: #ff7a52;
  --s4da-gold: #ffd36b;
  --s4da-border: rgba(64, 224, 208, 0.25);
  --s4da-shadow: 0 4px 18px rgba(0, 0, 0, 0.35);
  --s4da-radius: 14px;
  --s4da-radius-sm: 10px;
  --s4da-header-h: 60px;
  --s4da-bottomnav-h: 62px;
}

/* Reset */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { font-size: 62.5%; -webkit-text-size-adjust: 100%; }
body {
  font-family: "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 1.5rem;
  line-height: 1.5rem;
  color: var(--s4da-text);
  background: var(--s4da-bg);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: var(--s4da-primary); text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }

/* Layout containers */
.s4da-wrapper { width: 100%; max-width: 430px; margin: 0 auto; position: relative; min-height: 100vh; background: var(--s4da-bg); }
.s4da-container { width: 100%; padding: 0 1.4rem; }
.s4da-section { padding: 2.6rem 1.4rem; }
.s4da-section-alt { background: var(--s4da-bg-deep); }

/* Header */
.s4da-header {
  position: fixed; top: 0; left: 50%; transform: translateX(-50%);
  width: 100%; max-width: 430px; height: var(--s4da-header-h);
  background: var(--s4da-bg-deep);
  border-bottom: 1px solid var(--s4da-border);
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 1.2rem; z-index: 1000; box-shadow: var(--s4da-shadow);
}
.s4da-logo { display: flex; align-items: center; gap: 0.7rem; }
.s4da-logo img { width: 30px; height: 30px; border-radius: 6px; }
.s4da-logo-text { font-size: 1.6rem; font-weight: 800; color: var(--s4da-primary); letter-spacing: 0.3px; }
.s4da-header-actions { display: flex; align-items: center; gap: 0.6rem; }
.s4da-btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: 0.4rem; padding: 0.7rem 1.2rem; border-radius: var(--s4da-radius-sm);
  font-size: 1.3rem; font-weight: 700; min-height: 36px; transition: transform 0.15s ease, background 0.2s ease;
}
.s4da-btn:active { transform: scale(0.96); }
.s4da-btn-login { background: transparent; color: var(--s4da-text); border: 1px solid var(--s4da-primary); }
.s4da-btn-login:hover { background: rgba(64,224,208,0.12); }
.s4da-btn-register { background: var(--s4da-accent); color: #fff; }
.s4da-btn-register:hover { background: var(--s4da-accent-soft); }
.s4da-menu-toggle {
  width: 40px; height: 40px; border-radius: 8px; color: var(--s4da-text);
  display: flex; align-items: center; justify-content: center; font-size: 2rem;
}

/* Mobile menu */
.s4da-mobile-menu {
  position: fixed; top: var(--s4da-header-h); right: -100%;
  width: 78%; max-width: 320px; max-height: calc(100vh - var(--s4da-header-h));
  background: var(--s4da-bg-deep); border-left: 1px solid var(--s4da-border);
  padding: 1.6rem 1.2rem; z-index: 9999; overflow-y: auto;
  transition: right 0.28s ease; box-shadow: -6px 0 24px rgba(0,0,0,0.4);
}
.s4da-mobile-menu.s4da-menu-open { right: 0; }
.s4da-menu-title { font-size: 1.5rem; color: var(--s4da-primary); font-weight: 700; margin-bottom: 1rem; padding-bottom: 0.8rem; border-bottom: 1px solid var(--s4da-border); }
.s4da-menu-link {
  display: flex; align-items: center; gap: 0.9rem; padding: 1.1rem 0.6rem;
  color: var(--s4da-text); font-size: 1.35rem; border-radius: 8px; min-height: 44px;
  transition: background 0.18s ease;
}
.s4da-menu-link:hover, .s4da-menu-link:focus { background: rgba(64,224,208,0.12); color: var(--s4da-primary); }
.s4da-menu-link i { font-size: 1.7rem; color: var(--s4da-primary); width: 22px; text-align: center; }
.s4da-menu-backdrop {
  position: fixed; inset: 0; background: rgba(0,0,0,0.55);
  z-index: 9998; opacity: 0; visibility: hidden; transition: opacity 0.25s ease;
}
.s4da-menu-backdrop.s4da-backdrop-show { opacity: 1; visibility: visible; }

/* Hero / Carousel */
.s4da-hero { margin-top: var(--s4da-header-h); position: relative; }
.s4da-carousel { position: relative; width: 100%; overflow: hidden; }
.s4da-carousel-track { position: relative; width: 100%; }
.s4da-carousel-slide {
  position: absolute; inset: 0; opacity: 0; transition: opacity 0.6s ease;
  display: block; cursor: pointer;
}
.s4da-carousel-slide.s4da-slide-active { opacity: 1; position: relative; }
.s4da-carousel-slide img { width: 100%; height: auto; aspect-ratio: 16/9; object-fit: cover; }
.s4da-carousel-dots { position: absolute; bottom: 8px; left: 50%; transform: translateX(-50%); display: flex; gap: 6px; z-index: 5; }
.s4da-carousel-dot { width: 8px; height: 8px; border-radius: 50%; background: rgba(240,240,240,0.5); cursor: pointer; transition: background 0.2s ease; }
.s4da-carousel-dot.s4da-dot-active { background: var(--s4da-accent); width: 22px; border-radius: 4px; }

/* Headings & section title */
.s4da-h1 {
  font-size: 2.2rem; line-height: 1.45; font-weight: 800; color: var(--s4da-text);
  padding: 1.6rem 1.4rem 0.4rem; text-align: center;
}
.s4da-h1 span { color: var(--s4da-primary); }
.s4da-section-title { font-size: 1.9rem; font-weight: 800; color: var(--s4da-text); margin-bottom: 1.2rem; padding-left: 0.8rem; border-left: 4px solid var(--s4da-accent); }
.s4da-section-title em { color: var(--s4da-primary); font-style: normal; }
.s4da-subtitle { font-size: 1.35rem; color: var(--s4da-text-muted); margin-bottom: 1.4rem; line-height: 1.6rem; }
.s4da-text p { font-size: 1.35rem; line-height: 1.7rem; color: var(--s4da-text-muted); margin-bottom: 1rem; }
.s4da-text strong { color: var(--s4da-primary); }
.s4da-text a { color: var(--s4da-accent); font-weight: 600; text-decoration: underline; }

/* Game grid */
.s4da-game-group { margin-bottom: 2rem; }
.s4da-game-group-head { display: flex; align-items: center; gap: 0.6rem; margin-bottom: 1rem; }
.s4da-game-group-head i { color: var(--s4da-accent); font-size: 1.8rem; }
.s4da-game-group-head h3 { font-size: 1.55rem; color: var(--s4da-primary); font-weight: 700; }
.s4da-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0.8rem; }
.s4da-card {
  background: var(--s4da-bg-soft); border-radius: var(--s4da-radius-sm);
  padding: 0.5rem; text-align: center; cursor: pointer;
  transition: transform 0.16s ease, box-shadow 0.2s ease; overflow: hidden;
}
.s4da-card:hover, .s4da-card:active { transform: translateY(-3px); box-shadow: var(--s4da-shadow); }
.s4da-card-img { width: 100%; aspect-ratio: 1/1; object-fit: cover; border-radius: 8px; }
.s4da-card-name { font-size: 1.05rem; color: var(--s4da-text); margin-top: 0.4rem; line-height: 1.3rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

/* Feature / info cards */
.s4da-feature-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1rem; }
.s4da-feature-card { background: var(--s4da-bg-soft); border: 1px solid var(--s4da-border); border-radius: var(--s4da-radius); padding: 1.4rem 1.1rem; text-align: center; }
.s4da-feature-card .s4da-icon { font-size: 2.6rem; color: var(--s4da-primary); margin-bottom: 0.6rem; display: block; }
.s4da-feature-card h4 { font-size: 1.4rem; color: var(--s4da-text); margin-bottom: 0.4rem; font-weight: 700; }
.s4da-feature-card p { font-size: 1.2rem; color: var(--s4da-text-muted); line-height: 1.5rem; }

/* Promo / CTA banner */
.s4da-cta { background: linear-gradient(135deg, var(--s4da-accent), var(--s4da-accent-soft)); border-radius: var(--s4da-radius); padding: 1.8rem 1.2rem; text-align: center; color: #fff; margin: 1.6rem 0; box-shadow: var(--s4da-shadow); }
.s4da-cta h3 { font-size: 1.8rem; margin-bottom: 0.5rem; }
.s4da-cta p { font-size: 1.3rem; margin-bottom: 1rem; opacity: 0.95; }
.s4da-cta-btn { display: inline-flex; align-items: center; gap: 0.5rem; background: #fff; color: var(--s4da-accent); padding: 1rem 2rem; border-radius: 30px; font-size: 1.4rem; font-weight: 800; min-height: 44px; }
.s4da-cta-btn:active { transform: scale(0.96); }

/* Promo link inline (bold text link) */
.s4da-promo-link { color: var(--s4da-accent); font-weight: 800; text-decoration: underline; cursor: pointer; }
.s4da-promo-link:hover { color: var(--s4da-accent-soft); }

/* Steps list */
.s4da-steps { counter-reset: step; padding-left: 0; list-style: none; }
.s4da-steps li { position: relative; padding: 0.8rem 0 0.8rem 3.4rem; font-size: 1.3rem; color: var(--s4da-text-muted); line-height: 1.6rem; border-bottom: 1px dashed var(--s4da-border); }
.s4da-steps li::before { counter-increment: step; content: counter(step); position: absolute; left: 0; top: 0.7rem; width: 26px; height: 26px; background: var(--s4da-primary); color: var(--s4da-bg-deep); border-radius: 50%; font-size: 1.3rem; font-weight: 800; display: flex; align-items: center; justify-content: center; }

/* RTP compact table */
.s4da-rtp-table { width: 100%; border-collapse: collapse; background: var(--s4da-bg-soft); border-radius: var(--s4da-radius-sm); overflow: hidden; }
.s4da-rtp-table th, .s4da-rtp-table td { padding: 0.9rem 1rem; font-size: 1.25rem; text-align: left; border-bottom: 1px solid var(--s4da-border); }
.s4da-rtp-table th { background: var(--s4da-bg-deep); color: var(--s4da-primary); font-weight: 700; }
.s4da-rtp-table td:last-child { color: var(--s4da-accent); font-weight: 700; }

/* Testimonials */
.s4da-testimonial { background: var(--s4da-bg-soft); border-radius: var(--s4da-radius); padding: 1.2rem; margin-bottom: 1rem; border-left: 3px solid var(--s4da-primary); }
.s4da-testimonial p { font-size: 1.3rem; color: var(--s4da-text); line-height: 1.6rem; margin-bottom: 0.6rem; }
.s4da-testimonial cite { font-size: 1.15rem; color: var(--s4da-text-muted); font-style: normal; }
.s4da-stars { color: var(--s4da-gold); font-size: 1.3rem; letter-spacing: 2px; margin-bottom: 0.3rem; }

/* Winners */
.s4da-winner { display: flex; align-items: center; gap: 0.8rem; padding: 0.8rem; background: var(--s4da-bg-soft); border-radius: var(--s4da-radius-sm); margin-bottom: 0.6rem; }
.s4da-winner .s4da-winner-icon { width: 36px; height: 36px; border-radius: 50%; background: var(--s4da-accent); color: #fff; display: flex; align-items: center; justify-content: center; font-size: 1.6rem; flex-shrink: 0; }
.s4da-winner .s4da-winner-name { font-size: 1.25rem; color: var(--s4da-text); font-weight: 600; }
.s4da-winner .s4da-winner-amount { font-size: 1.3rem; color: var(--s4da-gold); font-weight: 800; margin-left: auto; }

/* Payment methods */
.s4da-pay-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0.7rem; }
.s4da-pay-item { background: var(--s4da-bg-soft); border: 1px solid var(--s4da-border); border-radius: 8px; padding: 1rem 0.5rem; text-align: center; }
.s4da-pay-item .s4da-icon { font-size: 2rem; color: var(--s4da-primary); display: block; margin-bottom: 0.3rem; }
.s4da-pay-item span { font-size: 1.1rem; color: var(--s4da-text-muted); }

/* App download CTA */
.s4da-app-cta { display: flex; align-items: center; gap: 1rem; background: var(--s4da-bg-soft); border: 1px solid var(--s4da-border); border-radius: var(--s4da-radius); padding: 1.4rem; }
.s4da-app-cta .s4da-app-icon { font-size: 3rem; color: var(--s4da-primary); flex-shrink: 0; }
.s4da-app-cta h4 { font-size: 1.5rem; color: var(--s4da-text); margin-bottom: 0.3rem; }
.s4da-app-cta p { font-size: 1.2rem; color: var(--s4da-text-muted); margin-bottom: 0.7rem; line-height: 1.5rem; }
.s4da-app-btns { display: flex; gap: 0.6rem; flex-wrap: wrap; }
.s4da-app-btn { background: var(--s4da-primary); color: var(--s4da-bg-deep); padding: 0.7rem 1.2rem; border-radius: 8px; font-size: 1.2rem; font-weight: 700; min-height: 40px; display: inline-flex; align-items: center; gap: 0.4rem; }
.s4da-app-btn:active { transform: scale(0.96); }

/* Footer */
.s4da-footer { background: var(--s4da-bg-deep); padding: 2.4rem 1.4rem; border-top: 1px solid var(--s4da-border); }
.s4da-footer-brand { font-size: 1.3rem; color: var(--s4da-text-muted); line-height: 1.6rem; margin-bottom: 1.4rem; }
.s4da-footer-brand strong { color: var(--s4da-primary); }
.s4da-footer-promos { display: flex; flex-wrap: wrap; gap: 0.6rem; margin-bottom: 1.4rem; }
.s4da-footer-promos a { background: var(--s4da-accent); color: #fff; padding: 0.6rem 1rem; border-radius: 20px; font-size: 1.15rem; font-weight: 600; }
.s4da-footer-links { display: flex; flex-wrap: wrap; gap: 0.6rem 1.2rem; margin-bottom: 1.2rem; }
.s4da-footer-links a { font-size: 1.15rem; color: var(--s4da-text-muted); text-decoration: underline; }
.s4da-footer-links a:hover { color: var(--s4da-primary); }
.s4da-footer-copy { font-size: 1.1rem; color: var(--s4da-text-muted); border-top: 1px solid var(--s4da-border); padding-top: 1.2rem; }

/* Mobile bottom nav */
.s4da-bottomnav {
  position: fixed; bottom: 0; left: 50%; transform: translateX(-50%);
  width: 100%; max-width: 430px; height: var(--s4da-bottomnav-h);
  background: var(--s4da-bg-deep); border-top: 1px solid var(--s4da-border);
  display: flex; justify-content: space-around; align-items: center;
  z-index: 1000; box-shadow: 0 -4px 16px rgba(0,0,0,0.3);
}
.s4da-bottomnav-btn {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 2px; min-width: 60px; min-height: 60px; color: var(--s4da-text-muted);
  font-size: 1.05rem; flex: 1; transition: color 0.2s ease, transform 0.15s ease;
}
.s4da-bottomnav-btn i { font-size: 2.2rem; }
.s4da-bottomnav-btn:active { transform: scale(0.92); }
.s4da-bottomnav-btn:hover, .s4da-bottomnav-btn.s4da-bottomnav-active { color: var(--s4da-accent); }
.s4da-bottomnav-btn.s4da-bottomnav-active i { color: var(--s4da-accent); }
.s4da-bottomnav-badge {
  position: absolute; top: 6px; right: 18px; min-width: 16px; height: 16px;
  background: var(--s4da-accent); color: #fff; border-radius: 50%; font-size: 0.95rem;
  display: flex; align-items: center; justify-content: center; padding: 0 4px; font-weight: 700;
}

/* Desktop: hide bottom nav, add top padding handled per element */
@media (min-width: 769px) {
  .s4da-bottomnav { display: none; }
}
@media (max-width: 768px) {
  main { padding-bottom: calc(var(--s4da-bottomnav-h) + 16px); }
}

/* Utility */
.s4da-hidden { display: none !important; }
.s4da-tag { display: inline-block; padding: 0.2rem 0.7rem; background: rgba(64,224,208,0.18); color: var(--s4da-primary); border-radius: 12px; font-size: 1.05rem; font-weight: 600; margin-right: 0.4rem; }
.s4da-list { list-style: none; padding: 0; }
.s4da-list li { padding: 0.5rem 0 0.5rem 1.8rem; position: relative; font-size: 1.3rem; color: var(--s4da-text-muted); line-height: 1.6rem; }
.s4da-list li::before { content: "▶"; position: absolute; left: 0; color: var(--s4da-accent); font-size: 0.9rem; top: 0.6rem; }