/* ============================================================
   Gakuran Codes - layout-f284.css
   All custom classes use the `ui28-` prefix.
   Palette: #0A0A0A | #3CB371 | #98FB98 | #E5E5E5 | #00FA9A
   Mobile-first, max 430px design width.
   ============================================================ */

:root {
  --ui28-bg: #0A0A0A;
  --ui28-bg-soft: #111913;
  --ui28-bg-card: #161f18;
  --ui28-primary: #3CB371;
  --ui28-accent: #00FA9A;
  --ui28-mint: #98FB98;
  --ui28-text: #E5E5E5;
  --ui28-muted: #8fa49a;
  --ui28-border: rgba(60, 179, 113, 0.18);
  --ui28-radius: 14px;
  --ui28-shadow: 0 6px 22px rgba(0, 0, 0, 0.35);
}

* { box-sizing: border-box; }

html {
  font-size: 62.5%; /* 1rem = 10px */
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  background: var(--ui28-bg);
  color: var(--ui28-text);
  line-height: 1.5rem;
  font-size: 1.4rem;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }

a { color: var(--ui28-mint); text-decoration: none; }
a:hover { color: var(--ui28-accent); }

h1, h2, h3, h4 { margin: 0 0 0.6rem; line-height: 1.3; font-weight: 700; }
h1 { font-size: 2.2rem; }
h2 { font-size: 1.9rem; color: var(--ui28-mint); }
h3 { font-size: 1.6rem; color: var(--ui28-accent); }
p  { margin: 0 0 1rem; }

/* ---------- Layout primitives ---------- */
.ui28-container {
  width: 100%;
  max-width: 430px;
  margin: 0 auto;
  padding: 0 1.2rem;
}
.ui28-wrapper { padding: 1.4rem 0; }
.ui28-section { padding: 2.4rem 0; border-top: 1px solid var(--ui28-border); }
.ui28-section-alt { background: var(--ui28-bg-soft); }

/* ---------- Header ---------- */
.ui28-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: rgba(10, 10, 10, 0.96);
  border-bottom: 1px solid var(--ui28-border);
  backdrop-filter: blur(8px);
}
.ui28-header-inner {
  max-width: 430px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.7rem 1rem;
}
.ui28-brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-weight: 800;
  font-size: 1.45rem;
  color: var(--ui28-mint);
}
.ui28-brand img { width: 28px; height: 28px; border-radius: 6px; }
.ui28-brand span small { display: block; font-size: 1rem; color: var(--ui28-muted); font-weight: 400; }

.ui28-header-actions { display: flex; align-items: center; gap: 0.5rem; }
.ui28-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.65rem 1.1rem;
  border-radius: 999px;
  border: none;
  font-size: 1.3rem;
  font-weight: 700;
  cursor: pointer;
  min-height: 38px;
  transition: transform 0.15s, box-shadow 0.15s, background 0.2s;
}
.ui28-btn:hover { transform: translateY(-1px); }
.ui28-btn-primary {
  background: linear-gradient(135deg, var(--ui28-primary), var(--ui28-accent));
  color: #05140c;
  box-shadow: 0 4px 14px rgba(0, 250, 154, 0.25);
}
.ui28-btn-ghost {
  background: transparent;
  color: var(--ui28-text);
  border: 1px solid var(--ui28-primary);
}
.ui28-menu-btn {
  background: transparent;
  color: var(--ui28-mint);
  border: none;
  font-size: 1.8rem;
  cursor: pointer;
  padding: 0.4rem 0.6rem;
}

/* ---------- Mobile dropdown menu ---------- */
.ui28-mobile-menu {
  position: fixed;
  top: 56px; left: 0; right: 0;
  background: var(--ui28-bg-soft);
  border-bottom: 1px solid var(--ui28-border);
  padding: 0.8rem 1.2rem 1.2rem;
  z-index: 9999;
  transform: translateY(-130%);
  transition: transform 0.28s ease;
  max-height: 70vh;
  overflow-y: auto;
}
.ui28-mobile-menu.ui28-menu-open { transform: translateY(0); }
.ui28-mobile-menu a {
  display: block;
  padding: 0.85rem 0.4rem;
  border-bottom: 1px solid rgba(60, 179, 113, 0.12);
  color: var(--ui28-text);
  font-size: 1.4rem;
}
.ui28-mobile-menu a:hover { color: var(--ui28-accent); padding-left: 0.8rem; }

/* ---------- Hero carousel ---------- */
.ui28-hero {
  position: relative;
  margin-top: 56px;
  overflow: hidden;
  border-radius: 0 0 18px 18px;
}
.ui28-hero-slide {
  display: none;
  position: relative;
}
.ui28-hero-slide.ui28-slide-active { display: block; }
.ui28-hero-slide img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}
.ui28-hero-caption {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  padding: 1rem 1.2rem 1.4rem;
  background: linear-gradient(to top, rgba(10,10,10,0.92), transparent);
  color: var(--ui28-text);
}
.ui28-hero-caption h2 { color: var(--ui28-mint); margin-bottom: 0.3rem; }
.ui28-hero-dots {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.6rem 0;
  background: var(--ui28-bg-soft);
}
.ui28-hero-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: rgba(152, 251, 152, 0.35);
  cursor: pointer;
}
.ui28-hero-dot.ui28-dot-active { background: var(--ui28-accent); }

/* ---------- Hero CTA banner ---------- */
.ui28-hero-cta {
  background: linear-gradient(135deg, rgba(60,179,113,0.18), rgba(0,250,154,0.12));
  border: 1px solid var(--ui28-border);
  border-radius: var(--ui28-radius);
  padding: 1.4rem;
  text-align: center;
  margin: 1.2rem 0;
}
.ui28-hero-cta p { color: var(--ui28-mint); margin-bottom: 0.8rem; }

/* ---------- Game grid ---------- */
.ui28-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.7rem;
}
.ui28-card {
  background: var(--ui28-bg-card);
  border-radius: 12px;
  border: 1px solid var(--ui28-border);
  padding: 0.5rem;
  text-align: center;
  cursor: pointer;
  transition: transform 0.15s, border-color 0.2s;
  overflow: hidden;
}
.ui28-card:hover { transform: translateY(-2px); border-color: var(--ui28-primary); }
.ui28-card img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border-radius: 10px;
  margin-bottom: 0.4rem;
}
.ui28-card-name {
  font-size: 1.1rem;
  color: var(--ui28-text);
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.ui28-card-tag {
  display: inline-block;
  font-size: 0.9rem;
  padding: 0.1rem 0.5rem;
  border-radius: 6px;
  background: rgba(0, 250, 154, 0.12);
  color: var(--ui28-accent);
  margin-top: 0.3rem;
}

.ui28-grid-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin: 1.6rem 0 0.8rem;
}
.ui28-grid-title h2 { margin: 0; }
.ui28-grid-title .ui28-more { font-size: 1.2rem; color: var(--ui28-accent); }

/* ---------- Featured / promotions ---------- */
.ui28-feature-card {
  display: flex;
  gap: 1rem;
  background: var(--ui28-bg-card);
  border: 1px solid var(--ui28-border);
  border-radius: var(--ui28-radius);
  padding: 1rem;
  margin-bottom: 0.9rem;
  align-items: center;
}
.ui28-feature-icon {
  width: 48px; height: 48px;
  flex-shrink: 0;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--ui28-primary), var(--ui28-accent));
  display: flex; align-items: center; justify-content: center;
  color: #05140c; font-size: 1.6rem;
}
.ui28-feature-card h3 { margin: 0 0 0.3rem; }
.ui28-feature-card p { margin: 0; font-size: 1.25rem; color: var(--ui28-muted); }

/* ---------- RTP / stats compact ---------- */
.ui28-stats-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.7rem;
}
.ui28-stat {
  background: var(--ui28-bg-card);
  border: 1px solid var(--ui28-border);
  border-radius: 10px;
  padding: 0.9rem;
  text-align: center;
}
.ui28-stat-num { font-size: 1.9rem; color: var(--ui28-accent); font-weight: 800; }
.ui28-stat-label { font-size: 1.1rem; color: var(--ui28-muted); }

/* ---------- Testimonials ---------- */
.ui28-testimonial {
  background: var(--ui28-bg-card);
  border-left: 3px solid var(--ui28-primary);
  padding: 0.9rem 1rem;
  border-radius: 8px;
  margin-bottom: 0.7rem;
}
.ui28-testimonial p { margin: 0 0 0.4rem; font-size: 1.25rem; }
.ui28-testimonial .ui28-author { color: var(--ui28-accent); font-size: 1.1rem; }

/* ---------- Payment methods ---------- */
.ui28-pay-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}
.ui28-pay-chip {
  background: var(--ui28-bg-card);
  border: 1px solid var(--ui28-border);
  border-radius: 999px;
  padding: 0.5rem 1rem;
  font-size: 1.15rem;
  color: var(--ui28-text);
}

/* ---------- Winners ---------- */
.ui28-winner {
  display: flex;
  justify-content: space-between;
  padding: 0.55rem 0.8rem;
  border-bottom: 1px dashed rgba(60,179,113,0.18);
  font-size: 1.2rem;
}
.ui28-winner span:last-child { color: var(--ui28-accent); font-weight: 700; }

/* ---------- FAQ ---------- */
.ui28-faq-item {
  background: var(--ui28-bg-card);
  border: 1px solid var(--ui28-border);
  border-radius: 10px;
  padding: 0.9rem 1rem;
  margin-bottom: 0.7rem;
}
.ui28-faq-item h4 { color: var(--ui28-mint); margin-bottom: 0.4rem; font-size: 1.3rem; }
.ui28-faq-item p { margin: 0; font-size: 1.2rem; color: var(--ui28-muted); }

/* ---------- SEO long text ---------- */
.ui28-seo-text { color: var(--ui28-muted); font-size: 1.25rem; }
.ui28-seo-text h2, .ui28-seo-text h3 { margin-top: 1.4rem; }
.ui28-seo-text strong { color: var(--ui28-mint); }

/* ---------- App download CTA ---------- */
.ui28-app-cta {
  background: linear-gradient(135deg, rgba(60,179,113,0.22), rgba(0,250,154,0.12));
  border: 1px solid var(--ui28-primary);
  border-radius: var(--ui28-radius);
  padding: 1.4rem;
  text-align: center;
}
.ui28-app-cta h3 { margin-bottom: 0.4rem; }
.ui28-app-row { display: flex; gap: 0.6rem; justify-content: center; margin-top: 0.9rem; flex-wrap: wrap; }

/* ---------- Footer ---------- */
.ui28-footer {
  background: var(--ui28-bg-soft);
  border-top: 1px solid var(--ui28-border);
  padding: 2rem 1.2rem 6rem;
  margin-top: 2rem;
}
.ui28-footer-brand { color: var(--ui28-muted); font-size: 1.2rem; margin-bottom: 1rem; }
.ui28-footer-links {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.6rem 1rem;
  margin: 1rem 0;
}
.ui28-footer-links a { color: var(--ui28-text); font-size: 1.2rem; }
.ui28-footer-promo {
  display: flex; flex-wrap: wrap; gap: 0.5rem; margin: 0.8rem 0 1rem;
}
.ui28-footer-copy { color: var(--ui28-muted); font-size: 1.1rem; }

/* ---------- Mobile bottom navigation ---------- */
.ui28-bottom-nav {
  position: fixed;
  bottom: 0; left: 0; right: 0;
  height: 62px;
  background: rgba(10, 10, 10, 0.98);
  border-top: 1px solid var(--ui28-primary);
  display: flex;
  justify-content: space-around;
  align-items: center;
  z-index: 1000;
  padding-bottom: env(safe-area-inset-bottom, 0);
}
.ui28-bottom-nav a {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-width: 60px;
  min-height: 60px;
  color: var(--ui28-text);
  font-size: 1rem;
  gap: 0.2rem;
  transition: color 0.2s, transform 0.15s;
}
.ui28-bottom-nav a:hover { color: var(--ui28-accent); transform: translateY(-1px); }
.ui28-bottom-nav a.active { color: var(--ui28-accent); }
.ui28-bottom-nav a .material-icons,
.ui28-bottom-nav a .fas,
.ui28-bottom-nav a .far,
.ui28-bottom-nav a ion-icon,
.ui28-bottom-nav a .bi { font-size: 22px; }
.ui28-bottom-nav a span.label { font-size: 1rem; line-height: 1; }

/* ---------- Back to top ---------- */
.ui28-back-top {
  position: fixed;
  right: 14px; bottom: 76px;
  width: 42px; height: 42px;
  border-radius: 50%;
  background: var(--ui28-primary);
  color: #05140c;
  display: flex; align-items: center; justify-content: center;
  opacity: 0; pointer-events: none;
  transition: opacity 0.25s;
  z-index: 999;
  border: none; cursor: pointer; font-size: 1.6rem;
}
.ui28-back-top.ui28-back-top-show { opacity: 1; pointer-events: auto; }

/* ---------- Section anchor offset ---------- */
[id] { scroll-margin-top: 70px; }

/* ---------- Mobile bottom padding for fixed nav ---------- */
@media (max-width: 768px) {
  main, .ui28-main { padding-bottom: 84px; }
}

/* ---------- Desktop: hide bottom nav, widen container ---------- */
@media (min-width: 769px) {
  .ui28-bottom-nav { display: none; }
  .ui28-container { max-width: 960px; }
  .ui28-grid { grid-template-columns: repeat(6, 1fr); }
  .ui28-stats-grid { grid-template-columns: repeat(4, 1fr); }
  .ui28-footer { padding-bottom: 2rem; }
  .ui28-hero-slide img { height: 320px; }
}

@media (max-width: 360px) {
  .ui28-grid { grid-template-columns: repeat(2, 1fr); }
}