/* ============================================================
   phdream apk - layout.css
   Author: phdream apk
   Mobile-first responsive stylesheet for phdreamapk.cyou.
   All custom classes use the "s16f-" prefix.
   Palette: #FFD700 gold | #0E1621 ink | #D3D3D3 mist |
            #FFF8DC cream | #FFA500 amber | #FFE135 lemon
   Comments are written in English.
   ============================================================ */

:root {
  --s16f-primary: #FFD700;
  --s16f-primary-2: #FFE135;
  --s16f-amber: #FFA500;
  --s16f-bg: #0E1621;
  --s16f-bg-2: #14202e;
  --s16f-bg-3: #1b2a3d;
  --s16f-text: #FFF8DC;
  --s16f-mist: #D3D3D3;
  --s16f-cream: #FFF8DC;
  --s16f-radius: 1.2rem;
  --s16f-shadow: 0 0.4rem 1.2rem rgba(0, 0, 0, 0.45);
  --s16f-header-h: 5.6rem;
  --s16f-nav-h: 6.2rem;
}

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

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

body {
  font-family: 'Segoe UI', system-ui, -apple-system, 'Helvetica Neue', Arial, sans-serif;
  background: var(--s16f-bg);
  color: var(--s16f-text);
  line-height: 1.5rem;
  font-size: 1.5rem;
  max-width: 430px;
  margin: 0 auto;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: var(--s16f-primary); text-decoration: none; }

/* ---------- Layout primitives ---------- */
.s16f-wrapper { width: 100%; max-width: 430px; margin: 0 auto; padding: 0 1.2rem; }
.s16f-container { width: 100%; padding: 1.6rem 1.2rem; }
.s16f-main { padding-top: var(--s16f-header-h); padding-bottom: var(--s16f-nav-h); }

/* ---------- Header ---------- */
.s16f-header {
  position: fixed; top: 0; left: 50%; transform: translateX(-50%);
  width: 100%; max-width: 430px; height: var(--s16f-header-h);
  background: linear-gradient(90deg, var(--s16f-bg) 0%, var(--s16f-bg-2) 100%);
  border-bottom: 0.2rem solid var(--s16f-primary);
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 1rem; z-index: 1000; box-shadow: var(--s16f-shadow);
}
.s16f-logo { display: flex; align-items: center; gap: 0.7rem; }
.s16f-logo img { width: 3rem; height: 3rem; border-radius: 0.6rem; }
.s16f-logo .s16f-brand { font-size: 1.8rem; font-weight: 800; color: var(--s16f-primary); letter-spacing: 0.03rem; }
.s16f-header-actions { display: flex; align-items: center; gap: 0.6rem; }
.s16f-menu-btn {
  background: transparent; border: 0.1rem solid var(--s16f-primary); color: var(--s16f-primary);
  width: 3.6rem; height: 3.6rem; border-radius: 0.8rem; font-size: 1.8rem; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
}

/* ---------- Buttons ---------- */
.s16f-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem;
  font-weight: 700; border: none; border-radius: 0.8rem; cursor: pointer;
  padding: 0.8rem 1.4rem; font-size: 1.4rem; transition: transform 0.15s ease, box-shadow 0.15s ease;
  min-height: 4.4rem; text-align: center;
}
.s16f-btn:hover { transform: translateY(-0.1rem); }
.s16f-btn-primary { background: linear-gradient(90deg, var(--s16f-primary), var(--s16f-amber)); color: var(--s16f-bg); }
.s16f-btn-secondary { background: transparent; color: var(--s16f-primary); border: 0.15rem solid var(--s16f-primary); }
.s16f-btn-block { width: 100%; }
.s16f-text-link { color: var(--s16f-primary); font-weight: 700; border-bottom: 0.1rem dashed var(--s16f-amber); }

/* ---------- Mobile slide menu ---------- */
.s16f-menu-overlay {
  position: fixed; inset: 0; background: rgba(0, 0, 0, 0.6);
  opacity: 0; visibility: hidden; transition: opacity 0.25s ease; z-index: 9999;
}
.s16f-overlay-active { opacity: 1; visibility: visible; }
.s16f-mobile-menu {
  position: fixed; top: 0; right: -85%; width: 80%; max-width: 340px; height: 100%;
  background: var(--s16f-bg-2); z-index: 9999; transition: right 0.3s ease;
  padding: 1.6rem; overflow-y: auto; border-left: 0.2rem solid var(--s16f-primary);
}
.s16f-menu-open { right: 0; }
.s16f-menu-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 1.6rem; }
.s16f-menu-head .s16f-brand { font-size: 1.8rem; font-weight: 800; color: var(--s16f-primary); }
.s16f-menu-close { background: transparent; border: none; color: var(--s16f-mist); font-size: 2.4rem; cursor: pointer; }
.s16f-menu-list { list-style: none; }
.s16f-menu-list li { border-bottom: 0.1rem solid rgba(211, 211, 211, 0.15); }
.s16f-menu-list a {
  display: block; padding: 1.3rem 0.6rem; color: var(--s16f-text); font-weight: 600; font-size: 1.5rem;
}
.s16f-menu-list a:hover { color: var(--s16f-primary); }
.s16f-menu-cta { margin-top: 1.6rem; display: flex; flex-direction: column; gap: 0.9rem; }

/* ---------- Carousel ---------- */
.s16f-carousel {
  position: relative; width: 100%; height: 18rem; border-radius: var(--s16f-radius);
  overflow: hidden; box-shadow: var(--s16f-shadow); margin: 1.2rem 0;
}
.s16f-carousel-slide {
  position: absolute; inset: 0; opacity: 0; transition: opacity 0.5s ease;
}
.s16f-slide-active { opacity: 1; }
.s16f-carousel-slide img { width: 100%; height: 100%; object-fit: cover; }
.s16f-carousel-cap {
  position: absolute; left: 0; bottom: 0; width: 100%; padding: 1.2rem;
  background: linear-gradient(transparent, rgba(14, 22, 33, 0.85));
  color: var(--s16f-cream); font-weight: 700; font-size: 1.5rem;
}
.s16f-carousel-arrow {
  position: absolute; top: 50%; transform: translateY(-50%);
  background: rgba(14, 22, 33, 0.55); color: var(--s16f-primary); border: none;
  width: 3.4rem; height: 3.4rem; border-radius: 50%; font-size: 1.6rem; cursor: pointer; z-index: 2;
}
.s16f-carousel-arrow.s16f-prev { left: 0.8rem; }
.s16f-carousel-arrow.s16f-next { right: 0.8rem; }
.s16f-carousel-dots { position: absolute; bottom: 0.8rem; right: 1rem; display: flex; gap: 0.5rem; z-index: 2; }
.s16f-carousel-dot { width: 0.8rem; height: 0.8rem; border-radius: 50%; background: rgba(255, 248, 220, 0.5); cursor: pointer; }
.s16f-dot-active { background: var(--s16f-primary); }

/* ---------- Section / heading ---------- */
.s16f-section { margin: 2rem 0; }
.s16f-section-title {
  font-size: 2rem; font-weight: 800; color: var(--s16f-primary); margin-bottom: 1rem;
  border-left: 0.4rem solid var(--s16f-amber); padding-left: 0.8rem;
}
.s16f-h1 {
  font-size: 2.4rem; font-weight: 900; color: var(--s16f-primary); line-height: 1.2;
  margin: 1.4rem 0; text-shadow: 0 0.2rem 0.6rem rgba(255, 215, 0, 0.25);
}
.s16f-subtitle { color: var(--s16f-mist); font-size: 1.5rem; margin-bottom: 1.2rem; }

/* ---------- Filter chips ---------- */
.s16f-filters { display: flex; gap: 0.7rem; overflow-x: auto; padding: 0.4rem 0 1rem; }
.s16f-filter-chip {
  flex: 0 0 auto; padding: 0.7rem 1.2rem; border-radius: 2rem; background: var(--s16f-bg-3);
  color: var(--s16f-mist); font-size: 1.3rem; font-weight: 600; border: 0.1rem solid transparent; cursor: pointer;
}
.s16f-chip-active { background: linear-gradient(90deg, var(--s16f-primary), var(--s16f-amber)); color: var(--s16f-bg); }

/* ---------- Game grid ---------- */
.s16f-game-section { margin-bottom: 2rem; }
.s16f-game-cat-title { font-size: 1.7rem; font-weight: 800; color: var(--s16f-primary-2); margin: 1.2rem 0 0.8rem; }
.s16f-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0.8rem; }
.s16f-game-card {
  background: var(--s16f-bg-2); border-radius: 1rem; overflow: hidden; cursor: pointer;
  border: 0.1rem solid rgba(255, 215, 0, 0.18); transition: transform 0.15s ease, border-color 0.15s ease;
}
.s16f-game-card:hover { transform: translateY(-0.2rem); border-color: var(--s16f-primary); }
.s16f-game-card img { width: 100%; aspect-ratio: 1 / 1; object-fit: cover; }
.s16f-game-name { padding: 0.5rem; font-size: 1.1rem; color: var(--s16f-cream); text-align: center; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

/* ---------- Cards / panels ---------- */
.s16f-card {
  background: var(--s16f-bg-2); border-radius: var(--s16f-radius); padding: 1.4rem;
  margin-bottom: 1.2rem; box-shadow: var(--s16f-shadow); border: 0.1rem solid rgba(255, 215, 0, 0.12);
}
.s16f-card-title { font-size: 1.7rem; font-weight: 800; color: var(--s16f-primary); margin-bottom: 0.8rem; }
.s16f-card p { color: var(--s16f-mist); margin-bottom: 0.8rem; }
.s16f-card ul { margin-left: 1.6rem; color: var(--s16f-mist); }
.s16f-card li { margin-bottom: 0.4rem; }

/* ---------- Points / stats ---------- */
.s16f-points { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0.8rem; }
.s16f-point-box { background: var(--s16f-bg-3); border-radius: 1rem; padding: 1rem; text-align: center; }
.s16f-point-num { font-size: 2.2rem; font-weight: 900; color: var(--s16f-primary); }
.s16f-point-label { font-size: 1.2rem; color: var(--s16f-mist); }

/* ---------- Winners / testimonials ---------- */
.s16f-winners { display: grid; gap: 0.6rem; }
.s16f-winner-row {
  display: flex; align-items: center; justify-content: space-between;
  background: var(--s16f-bg-3); border-radius: 0.8rem; padding: 0.9rem 1.2rem;
}
.s16f-winner-name { color: var(--s16f-cream); font-weight: 700; }
.s16f-winner-amount { color: var(--s16f-primary); font-weight: 800; }

.s16f-testimonial { background: var(--s16f-bg-3); border-radius: 1rem; padding: 1.2rem; margin-bottom: 0.8rem; }
.s16f-testimonial-stars { color: var(--s16f-primary); margin-bottom: 0.4rem; }
.s16f-testimonial-text { color: var(--s16f-mist); font-size: 1.4rem; }
.s16f-testimonial-author { color: var(--s16f-primary-2); font-weight: 700; margin-top: 0.4rem; }

/* ---------- Payment methods ---------- */
.s16f-payments { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0.6rem; }
.s16f-payment-box { background: var(--s16f-bg-3); border-radius: 0.8rem; padding: 0.8rem; text-align: center; }
.s16f-payment-box .s16f-pay-icon { font-size: 2rem; color: var(--s16f-primary); }
.s16f-payment-box .s16f-pay-name { font-size: 1.1rem; color: var(--s16f-mist); margin-top: 0.3rem; }

/* ---------- CTA strip ---------- */
.s16f-cta {
  background: linear-gradient(90deg, var(--s16f-primary), var(--s16f-amber));
  border-radius: var(--s16f-radius); padding: 1.6rem; text-align: center; margin: 1.6rem 0;
}
.s16f-cta h3 { color: var(--s16f-bg); font-size: 1.9rem; font-weight: 900; margin-bottom: 0.5rem; }
.s16f-cta p { color: var(--s16f-bg); margin-bottom: 1rem; font-weight: 600; }
.s16f-cta .s16f-btn { background: var(--s16f-bg); color: var(--s16f-primary); }

/* ---------- App download CTA ---------- */
.s16f-app-cta { display: flex; align-items: center; gap: 1rem; background: var(--s16f-bg-2); border-radius: var(--s16f-radius); padding: 1.2rem; }
.s16f-app-cta .s16f-app-icon { font-size: 3.6rem; color: var(--s16f-primary); }
.s16f-app-cta .s16f-app-text { flex: 1; }
.s16f-app-cta .s16f-app-text h4 { color: var(--s16f-primary); font-size: 1.6rem; margin-bottom: 0.2rem; }
.s16f-app-cta .s16f-app-text p { color: var(--s16f-mist); font-size: 1.3rem; }

/* ---------- Footer ---------- */
.s16f-footer { background: var(--s16f-bg-2); padding: 2.4rem 1.2rem 9rem; border-top: 0.2rem solid var(--s16f-primary); }
.s16f-footer-brand { color: var(--s16f-mist); font-size: 1.4rem; margin-bottom: 1.2rem; }
.s16f-footer-links { display: flex; flex-wrap: wrap; gap: 0.8rem; margin-bottom: 1.2rem; }
.s16f-footer-links a { color: var(--s16f-primary); font-size: 1.3rem; font-weight: 600; }
.s16f-footer-promos { display: flex; flex-wrap: wrap; gap: 0.8rem; margin-bottom: 1.2rem; }
.s16f-footer-promos .s16f-btn { padding: 0.6rem 1rem; font-size: 1.3rem; min-height: 3.6rem; }
.s16f-footer-copy { color: var(--s16f-mist); font-size: 1.2rem; border-top: 0.1rem solid rgba(211, 211, 211, 0.15); padding-top: 1rem; }

/* ---------- Mobile bottom navigation ---------- */
.s16f-bottom-nav {
  position: fixed; bottom: 0; left: 50%; transform: translateX(-50%);
  width: 100%; max-width: 430px; height: var(--s16f-nav-h);
  background: linear-gradient(180deg, var(--s16f-bg-2), var(--s16f-bg));
  border-top: 0.2rem solid var(--s16f-primary);
  display: flex; justify-content: space-around; align-items: center;
  z-index: 1000; box-shadow: 0 -0.3rem 1rem rgba(0, 0, 0, 0.4);
}
.s16f-nav-btn {
  flex: 1; min-width: 60px; min-height: 60px; background: transparent; border: none;
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 0.2rem;
  color: var(--s16f-mist); cursor: pointer; transition: transform 0.15s ease, color 0.15s ease;
}
.s16f-nav-btn:active { transform: scale(0.92); }
.s16f-nav-btn .s16f-nav-icon { font-size: 2.4rem; }
.s16f-nav-btn .s16f-nav-label { font-size: 1.1rem; font-weight: 600; }
.s16f-nav-btn.s16f-nav-active { color: var(--s16f-primary); }
.s16f-nav-btn.s16f-nav-active .s16f-nav-icon { color: var(--s16f-primary-2); }
.s16f-nav-btn:hover { color: var(--s16f-primary); }
.s16f-nav-badge {
  position: absolute; top: 0.4rem; right: 1.4rem; background: var(--s16f-amber); color: var(--s16f-bg);
  font-size: 0.9rem; font-weight: 800; min-width: 1.6rem; height: 1.6rem; border-radius: 0.8rem; padding: 0 0.3rem;
  display: flex; align-items: center; justify-content: center;
}

/* ---------- Back to top ---------- */
.s16f-back-top {
  position: fixed; right: 1.2rem; bottom: calc(var(--s16f-nav-h) + 1rem); z-index: 900;
  width: 4rem; height: 4rem; border-radius: 50%; background: var(--s16f-primary); color: var(--s16f-bg);
  border: none; font-size: 1.8rem; cursor: pointer; box-shadow: var(--s16f-shadow); display: none;
}
@media (max-width: 768px) { .s16f-back-top { display: block; } }

/* ---------- Desktop: hide bottom nav, widen layout ---------- */
@media (min-width: 769px) {
  body { max-width: 960px; font-size: 1.6rem; }
  .s16f-wrapper, .s16f-header, .s16f-bottom-nav, .s16f-footer { max-width: 960px; }
  .s16f-grid { grid-template-columns: repeat(6, 1fr); }
  .s16f-points { grid-template-columns: repeat(5, 1fr); }
  .s16f-payments { grid-template-columns: repeat(8, 1fr); }
  .s16f-bottom-nav { display: none; }
  .s16f-main { padding-bottom: 2rem; }
  .s16f-footer { padding-bottom: 2.4rem; }
}

/* ---------- Mobile: ensure content clears the fixed bottom nav ---------- */
@media (max-width: 768px) {
  .s16f-main { padding-bottom: 8rem; }
}