/* viptaka core stylesheet - css/style.css
   Class prefix: uif3-  |  CSS variables: --uif3-*
   Mobile-first (max-width: 430px). Palette: #0A0A0A | #87CEEB | #F0F0F0
   English comments only.
*/
:root {
  --uif3-bg: #0A0A0A;
  --uif3-primary: #87CEEB;
  --uif3-text: #F0F0F0;
  --uif3-muted: #9aa4ad;
  --uif3-card: #161a1f;
  --uif3-card2: #1f252c;
  --uif3-accent: #FFD166;
  --uif3-danger: #ff6b6b;
  --uif3-success: #2ecc71;
  --uif3-border: #2a3138;
  --uif3-radius: 1.2rem;
  --uif3-radius-sm: 0.7rem;
  --uif3-shadow: 0 0.4rem 1.4rem rgba(0, 0, 0, 0.55);
  --uif3-header-h: 5.6rem;
  --uif3-bottom-h: 6.2rem;
}

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

html { font-size: 62.5%; scroll-behavior: smooth; }

body {
  background: var(--uif3-bg);
  color: var(--uif3-text);
  font-family: "Hind Siliguri", "Noto Sans Bengali", "Segoe UI", system-ui, -apple-system, sans-serif;
  font-size: 1.5rem;
  line-height: 1.5rem;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a { color: var(--uif3-primary); text-decoration: none; }
img { max-width: 100%; display: block; }

.uif3-container { width: 100%; max-width: 430px; margin: 0 auto; padding: 0 1.2rem; }
.uif3-wrapper { padding-top: var(--uif3-header-h); padding-bottom: calc(var(--uif3-bottom-h) + 1rem); }

/* ---------- Header ---------- */
.uif3-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  background: linear-gradient(180deg, #0d1014 0%, #0A0A0A 100%);
  border-bottom: 0.1rem solid var(--uif3-border);
  box-shadow: var(--uif3-shadow);
}
.uif3-header-inner {
  max-width: 430px; margin: 0 auto; height: var(--uif3-header-h);
  padding: 0 1.2rem; display: flex; align-items: center; justify-content: space-between; gap: 0.8rem;
}
.uif3-brand { display: flex; align-items: center; gap: 0.7rem; min-width: 0; }
.uif3-brand img { width: 3rem; height: 3rem; border-radius: 0.6rem; }
.uif3-brand-name { font-size: 1.9rem; font-weight: 800; color: var(--uif3-primary); letter-spacing: 0.05rem; white-space: nowrap; }
.uif3-brand-name span { color: var(--uif3-text); }

.uif3-header-actions { display: flex; align-items: center; gap: 0.6rem; }
.uif3-menu-btn {
  background: transparent; border: 0.1rem solid var(--uif3-border); color: var(--uif3-text);
  width: 3.6rem; height: 3.6rem; border-radius: 0.6rem; font-size: 1.6rem; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
}

.uif3-btn {
  border: none; border-radius: 0.8rem; padding: 0.8rem 1.3rem; font-size: 1.35rem; font-weight: 700;
  cursor: pointer; transition: transform 0.15s ease, opacity 0.15s ease; min-height: 4rem;
}
.uif3-btn:active { transform: scale(0.94); }
.uif3-btn-login { background: transparent; color: var(--uif3-text); border: 0.15rem solid var(--uif3-primary); }
.uif3-btn-register {
  background: linear-gradient(90deg, #87CEEB 0%, #5fb8d8 100%);
  color: #0A0A0A; box-shadow: 0 0.4rem 0.9rem rgba(135, 206, 235, 0.4);
}
.uif3-btn-promo { background: linear-gradient(90deg, #FFD166 0%, #f5a623 100%); color: #0A0A0A; font-weight: 800; }

/* ---------- Mobile expandable menu ---------- */
.uif3-mobile-menu {
  max-height: 0; overflow: hidden; transition: max-height 0.3s ease;
  background: #0d1014; border-bottom: 0.1rem solid var(--uif3-border);
}
.uif3-mobile-menu.uif3-open { max-height: 60rem; }
.uif3-mobile-menu-inner { max-width: 430px; margin: 0 auto; padding: 0.6rem 1.2rem 1.2rem; display: grid; grid-template-columns: 1fr 1fr; gap: 0.6rem; }
.uif3-mobile-menu a {
  display: flex; align-items: center; gap: 0.6rem; padding: 1rem 0.9rem;
  background: var(--uif3-card); border-radius: var(--uif3-radius-sm); color: var(--uif3-text); font-size: 1.35rem; font-weight: 600;
  border: 0.1rem solid var(--uif3-border);
}
.uif3-mobile-menu a i, .uif3-mobile-menu a .material-icons-outlined { font-size: 1.8rem; color: var(--uif3-primary); }

/* ---------- Hero / Carousel ---------- */
.uif3-hero { margin: 1.2rem 0; }
.uif3-carousel { position: relative; border-radius: var(--uif3-radius); overflow: hidden; box-shadow: var(--uif3-shadow); }
.uif3-slide {
  position: relative; display: none; cursor: pointer;
}
.uif3-slide.uif3-active { display: block; }
.uif3-slide img { width: 100%; height: 18rem; object-fit: cover; }
.uif3-slide-caption {
  position: absolute; left: 1rem; bottom: 1rem; right: 1rem;
  background: rgba(10, 10, 10, 0.6); padding: 0.7rem 1rem; border-radius: 0.7rem; font-size: 1.3rem; font-weight: 700; color: var(--uif3-primary);
}
.uif3-dots { position: absolute; bottom: 0.8rem; right: 1rem; display: flex; gap: 0.4rem; }
.uif3-dot { width: 0.8rem; height: 0.8rem; border-radius: 50%; background: rgba(240, 240, 240, 0.4); cursor: pointer; border: none; }
.uif3-dot.uif3-active { background: var(--uif3-primary); }

/* ---------- Section / Heading ---------- */
.uif3-section { margin: 1.8rem 0; }
.uif3-section-title {
  font-size: 1.9rem; font-weight: 800; margin-bottom: 1rem; padding-left: 0.9rem;
  border-left: 0.4rem solid var(--uif3-primary); color: var(--uif3-text);
}
.uif3-section-title em { color: var(--uif3-primary); font-style: normal; }
.uif3-section-intro { color: var(--uif3-muted); font-size: 1.35rem; margin-bottom: 1rem; line-height: 2.3rem; }

.uif3-h1 {
  font-size: 2.1rem; font-weight: 800; line-height: 2.8rem; margin: 1rem 0;
  background: linear-gradient(90deg, #87CEEB, #F0F0F0); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}

/* ---------- Category tabs (static labels) ---------- */
.uif3-cat-label {
  display: inline-block; font-size: 1.4rem; font-weight: 700; color: var(--uif3-primary);
  margin: 1.4rem 0 0.8rem; padding: 0.3rem 0.9rem; background: rgba(135, 206, 235, 0.12); border-radius: 1rem;
}

/* ---------- Game grid ---------- */
.uif3-game-search {
  width: 100%; padding: 0.9rem 1.1rem; border-radius: 0.8rem; border: 0.1rem solid var(--uif3-border);
  background: var(--uif3-card); color: var(--uif3-text); font-size: 1.35rem; margin-bottom: 1rem;
}
.uif3-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0.8rem; }
.uif3-game-item {
  background: var(--uif3-card); border: 0.1rem solid var(--uif3-border); border-radius: var(--uif3-radius-sm);
  padding: 0.6rem; text-align: center; cursor: pointer; transition: transform 0.15s ease, border-color 0.15s ease;
  display: flex; flex-direction: column; align-items: center; gap: 0.4rem; min-height: 4rem;
}
.uif3-game-item:hover, .uif3-game-item:active { transform: translateY(-0.2rem); border-color: var(--uif3-primary); }
.uif3-game-item img { width: 5.6rem; height: 5.6rem; border-radius: 0.6rem; object-fit: cover; }
.uif3-game-item span { font-size: 1.15rem; color: var(--uif3-text); line-height: 1.6rem; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }

/* ---------- Cards ---------- */
.uif3-card { background: var(--uif3-card); border: 0.1rem solid var(--uif3-border); border-radius: var(--uif3-radius); padding: 1.4rem; margin-bottom: 1rem; }
.uif3-card h3 { font-size: 1.55rem; color: var(--uif3-primary); margin-bottom: 0.6rem; }
.uif3-card p { color: var(--uif3-text); font-size: 1.3rem; line-height: 2.2rem; }
.uif3-card ul { list-style: none; padding: 0; }
.uif3-card ul li { padding: 0.5rem 0 0.5rem 1.8rem; position: relative; font-size: 1.3rem; line-height: 2.1rem; color: var(--uif3-text); }
.uif3-card ul li::before { content: "▸"; position: absolute; left: 0.3rem; color: var(--uif3-primary); }

/* ---------- RTP / data bars ---------- */
.uif3-rtp-row { display: flex; align-items: center; justify-content: space-between; padding: 0.6rem 0; border-bottom: 0.1rem solid var(--uif3-border); font-size: 1.3rem; }
.uif3-rtp-row:last-child { border-bottom: none; }
.uif3-rtp-bar { flex: 1; height: 0.7rem; background: #232a31; border-radius: 0.4rem; margin: 0 0.8rem; overflow: hidden; }
.uif3-rtp-bar i { display: block; height: 100%; background: linear-gradient(90deg, #87CEEB, #FFD166); }
.uif3-rtp-val { color: var(--uif3-accent); font-weight: 700; min-width: 4.5rem; text-align: right; }

/* ---------- Testimonials ---------- */
.uif3-testi { background: var(--uif3-card2); border-radius: var(--uif3-radius-sm); padding: 1rem; margin-bottom: 0.8rem; }
.uif3-testi-name { font-weight: 700; color: var(--uif3-primary); font-size: 1.3rem; }
.uif3-testi-stars { color: var(--uif3-accent); font-size: 1.2rem; }
.uif3-testi p { font-size: 1.25rem; line-height: 2rem; color: var(--uif3-text); margin-top: 0.4rem; }

/* ---------- Winners ---------- */
.uif3-winner { display: flex; align-items: center; justify-content: space-between; padding: 0.7rem 0.9rem; background: var(--uif3-card); border-radius: var(--uif3-radius-sm); margin-bottom: 0.5rem; }
.uif3-winner span:first-child { color: var(--uif3-text); font-size: 1.25rem; }
.uif3-winner span:last-child { color: var(--uif3-success); font-weight: 800; font-size: 1.3rem; }

/* ---------- Payment ---------- */
.uif3-pay-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0.6rem; }
.uif3-pay { background: var(--uif3-card); border: 0.1rem solid var(--uif3-border); border-radius: 0.6rem; padding: 0.8rem 0.4rem; text-align: center; font-size: 1.05rem; color: var(--uif3-muted); }
.uif3-pay i { font-size: 1.8rem; color: var(--uif3-primary); display: block; margin-bottom: 0.3rem; }

/* ---------- CTA banner ---------- */
.uif3-cta {
  background: linear-gradient(120deg, #10212b 0%, #0A0A0A 100%);
  border: 0.1rem solid var(--uif3-primary); border-radius: var(--uif3-radius);
  padding: 1.6rem; text-align: center; margin: 1.4rem 0;
}
.uif3-cta h3 { color: var(--uif3-primary); font-size: 1.7rem; margin-bottom: 0.6rem; }
.uif3-cta p { color: var(--uif3-text); font-size: 1.3rem; margin-bottom: 1rem; }
.uif3-cta .uif3-btn { display: inline-block; padding: 1.1rem 2.4rem; font-size: 1.5rem; }

.uif3-text-link { color: var(--uif3-primary); font-weight: 700; text-decoration: underline; }

/* ---------- Footer ---------- */
.uif3-footer { background: #0d1014; border-top: 0.1rem solid var(--uif3-border); padding: 2rem 0 1.4rem; margin-top: 1.6rem; }
.uif3-footer p { color: var(--uif3-muted); font-size: 1.2rem; line-height: 2rem; margin-bottom: 1rem; }
.uif3-footer-links { display: grid; grid-template-columns: 1fr 1fr; gap: 0.6rem; margin-bottom: 1rem; }
.uif3-footer-links a { background: var(--uif3-card); border: 0.1rem solid var(--uif3-border); border-radius: 0.6rem; padding: 0.7rem 0.8rem; font-size: 1.15rem; color: var(--uif3-text); text-align: center; }
.uif3-footer-promos { display: flex; flex-wrap: wrap; gap: 0.5rem; margin: 0.8rem 0; }
.uif3-footer-promos button { flex: 1 1 40%; }
.uif3-copy { color: var(--uif3-muted); font-size: 1.1rem; text-align: center; padding-top: 1rem; border-top: 0.1rem solid var(--uif3-border); }

/* ---------- Mobile bottom nav ---------- */
.uif3-bottom-nav {
  position: fixed; bottom: 0; left: 0; right: 0; z-index: 1000;
  height: var(--uif3-bottom-h); background: #0d1014; border-top: 0.15rem solid var(--uif3-primary);
  display: flex; justify-content: space-around; align-items: stretch; box-shadow: 0 -0.4rem 1rem rgba(0, 0, 0, 0.5);
}
.uif3-bottom-nav a, .uif3-bottom-nav button {
  flex: 1; background: transparent; border: none; color: var(--uif3-muted);
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 0.2rem;
  min-width: 60px; min-height: 60px; cursor: pointer; padding: 0.4rem 0; transition: color 0.18s ease, transform 0.18s ease;
}
.uif3-bottom-nav a i, .uif3-bottom-nav a .material-icons-outlined, .uif3-bottom-nav button i,
.uif3-bottom-nav button .material-icons-outlined { font-size: 2.4rem; line-height: 1; }
.uif3-bottom-nav a span, .uif3-bottom-nav button span { font-size: 1.05rem; line-height: 1.4rem; }
.uif3-bottom-nav a:active, .uif3-bottom-nav button:active { transform: scale(0.9); color: var(--uif3-primary); }
.uif3-bottom-nav .uif3-active { color: var(--uif3-primary); }
.uif3-bottom-nav .uif3-active span { font-weight: 700; }
.uif3-bottom-nav .uif3-badge { position: relative; }
.uif3-bottom-nav .uif3-badge::after {
  content: "1"; position: absolute; top: 0.2rem; right: 1.4rem; background: var(--uif3-danger); color: #fff;
  font-size: 0.9rem; font-weight: 700; border-radius: 50%; width: 1.6rem; height: 1.6rem; display: flex; align-items: center; justify-content: center;
}

/* ---------- Desktop ---------- */
@media (min-width: 769px) {
  .uif3-bottom-nav { display: none; }
  .uif3-header-inner, .uif3-mobile-menu-inner, .uif3-container { max-width: 760px; }
}
@media (max-width: 768px) {
  .uif3-wrapper { padding-bottom: calc(var(--uif3-bottom-h) + 1.5rem); }
  main { padding-bottom: 80px; }
}
.uif3-desktop-only { display: none; }
@media (min-width: 769px) { .uif3-desktop-only { display: block; } }