/* ============================================================
 * c54221.click - design-3541.css
 * Shared stylesheet for c54221 website (Vietnamese mobile-first)
 * All custom classes use the pg35- prefix.
 * Palette: #DEB887 | #F5DEB3 | #2F2F2F | #1B263B | #8B4513
 * Comments in English only.
 * ============================================================ */

:root {
  --pg35-primary: #DEB887;
  --pg35-primary-soft: #F5DEB3;
  --pg35-bg: #1B263B;
  --pg35-bg-deep: #2F2F2F;
  --pg35-accent: #8B4513;
  --pg35-text: #F5DEB3;
  --pg35-text-dim: #d8c6a0;
  --pg35-line: rgba(222, 184, 135, 0.18);
  --pg35-card: rgba(255, 255, 255, 0.04);
  --pg35-shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
  --pg35-radius: 14px;
  --pg35-radius-sm: 10px;
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  font-family: "Segoe UI", "Roboto", "Helvetica Neue", Arial, sans-serif;
  background: radial-gradient(1200px 600px at 50% -10%, #2a3b55 0%, var(--pg35-bg) 45%, var(--pg35-bg-deep) 100%);
  color: var(--pg35-text);
  line-height: 1.5rem;
  font-size: 1.4rem;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

a { color: var(--pg35-primary); text-decoration: none; }
a:hover { color: var(--pg35-primary-soft); text-decoration: underline; }

h1, h2, h3, h4 { color: var(--pg35-primary-soft); margin: 0 0 0.8rem; line-height: 1.7rem; }

/* ---------- Layout ---------- */
.pg35-container {
  width: 100%;
  max-width: 430px;
  margin: 0 auto;
  padding: 0 1.2rem;
}

.pg35-wrapper { padding-top: 5.4rem; padding-bottom: 2rem; }

main.pg35-main { padding-bottom: 8.4rem; }

/* ---------- Header ---------- */
.pg35-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: linear-gradient(180deg, rgba(27,38,59,0.96), rgba(47,47,47,0.92));
  border-bottom: 1px solid var(--pg35-line);
  backdrop-filter: blur(8px);
  transition: box-shadow .25s ease;
}
.pg35-header-scrolled { box-shadow: 0 4px 18px rgba(0,0,0,0.4); }

.pg35-header-inner {
  max-width: 430px;
  margin: 0 auto;
  padding: 0.5rem 1rem;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.pg35-brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 800;
  color: var(--pg35-primary);
  font-size: 1.6rem;
  letter-spacing: 0.3px;
}
.pg35-brand img { width: 2.8rem; height: 2.8rem; border-radius: 6px; }

.pg35-header-actions { margin-left: auto; display: flex; align-items: center; gap: 0.5rem; }

.pg35-menu-btn {
  background: transparent;
  border: 1px solid var(--pg35-line);
  color: var(--pg35-primary);
  width: 3.2rem; height: 3.2rem;
  border-radius: 8px;
  display: inline-flex; align-items: center; justify-content: center;
  cursor: pointer;
}
.pg35-menu-btn:hover { background: rgba(222,184,135,0.12); }

/* ---------- Buttons ---------- */
.pg35-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  border: 0;
  border-radius: 999px;
  padding: 0.7rem 1.4rem;
  font-size: 1.35rem;
  font-weight: 700;
  cursor: pointer;
  min-height: 3.6rem;
  transition: transform .15s ease, box-shadow .15s ease, background .2s ease;
}
.pg35-btn:hover { text-decoration: none; transform: translateY(-1px); }
.pg35-btn:active { transform: scale(0.97); }

.pg35-btn-primary {
  background: linear-gradient(135deg, var(--pg35-primary), var(--pg35-accent));
  color: #2a1a08;
  box-shadow: 0 6px 16px rgba(139,69,19,0.4);
}
.pg35-btn-primary:hover { color: #2a1a08; }

.pg35-btn-outline {
  background: transparent;
  color: var(--pg35-primary-soft);
  border: 1.5px solid var(--pg35-primary);
}
.pg35-btn-outline:hover { background: rgba(222,184,135,0.12); color: var(--pg35-primary-soft); }

.pg35-btn-block { width: 100%; }

/* ---------- Mobile menu ---------- */
.pg35-mobile-menu {
  max-height: 0;
  overflow: hidden;
  background: rgba(27,38,59,0.98);
  border-top: 1px solid var(--pg35-line);
  transition: max-height .35s ease;
}
.pg35-menu-open { max-height: 520px; }
.pg35-mobile-menu ul {
  list-style: none;
  margin: 0; padding: 0.4rem 1rem 0.8rem;
}
.pg35-mobile-menu li a {
  display: block;
  padding: 1rem 0.6rem;
  border-bottom: 1px solid var(--pg35-line);
  color: var(--pg35-text);
  font-weight: 600;
}
.pg35-mobile-menu li a:hover { color: var(--pg35-primary); }

/* ---------- Hero / Carousel ---------- */
.pg35-hero {
  position: relative;
  margin: 1rem 0;
  border-radius: var(--pg35-radius);
  overflow: hidden;
  box-shadow: var(--pg35-shadow);
}
.pg35-slides { position: relative; }
.pg35-slide {
  display: none;
  position: relative;
  cursor: pointer;
}
.pg35-slide img { width: 100%; height: 190px; object-fit: cover; }
.pg35-slide-active { display: block; }
.pg35-slide-cap {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  padding: 1rem 1.2rem;
  background: linear-gradient(0deg, rgba(0,0,0,0.78), transparent);
  color: #fff;
}
.pg35-slide-cap h2 { color: var(--pg35-primary-soft); margin: 0 0 .3rem; font-size: 1.7rem; }
.pg35-slide-cap p { margin: 0; font-size: 1.2rem; color: var(--pg35-text-dim); }

.pg35-dots {
  position: absolute;
  bottom: 8px; left: 0; right: 0;
  text-align: center;
}
.pg35-dot {
  display: inline-block;
  width: 8px; height: 8px;
  margin: 0 3px;
  border-radius: 50%;
  background: rgba(245,222,179,0.5);
  cursor: pointer;
}
.pg35-dot-active { background: var(--pg35-primary); width: 22px; border-radius: 5px; }

/* ---------- Section ---------- */
.pg35-section { margin: 2.2rem 0; }
.pg35-section-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
  gap: 0.6rem;
}
.pg35-section-head h2 {
  font-size: 1.7rem;
  margin: 0;
  border-left: 4px solid var(--pg35-primary);
  padding-left: 0.7rem;
}
.pg35-section-head a { font-size: 1.2rem; font-weight: 600; }

/* ---------- Filter chips ---------- */
.pg35-filter-row {
  display: flex;
  gap: 0.5rem;
  overflow-x: auto;
  padding: 0.4rem 0 1rem;
  -webkit-overflow-scrolling: touch;
}
.pg35-filter-chip {
  flex: 0 0 auto;
  padding: 0.5rem 1rem;
  border-radius: 999px;
  background: var(--pg35-card);
  border: 1px solid var(--pg35-line);
  color: var(--pg35-text-dim);
  font-size: 1.2rem;
  cursor: pointer;
  white-space: nowrap;
}
.pg35-chip-active {
  background: var(--pg35-primary);
  color: #2a1a08;
  border-color: var(--pg35-primary);
  font-weight: 700;
}

/* ---------- Game grid ---------- */
.pg35-cat-block { margin: 1.4rem 0; }
.pg35-cat-title {
  font-size: 1.5rem;
  margin: 0 0 0.8rem;
  color: var(--pg35-primary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.pg35-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.7rem;
}
.pg35-game {
  background: var(--pg35-card);
  border: 1px solid var(--pg35-line);
  border-radius: var(--pg35-radius-sm);
  padding: 0.5rem;
  text-align: center;
  cursor: pointer;
  transition: transform .15s ease, border-color .2s ease;
  display: block;
}
.pg35-game:hover {
  transform: translateY(-2px);
  border-color: var(--pg35-primary);
  text-decoration: none;
}
.pg35-game img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border-radius: 8px;
  margin-bottom: 0.4rem;
}
.pg35-game-name {
  font-size: 1.15rem;
  color: var(--pg35-text);
  font-weight: 600;
  line-height: 1.3rem;
  height: 2.6rem;
  overflow: hidden;
}

/* ---------- Cards ---------- */
.pg35-card {
  background: var(--pg35-card);
  border: 1px solid var(--pg35-line);
  border-radius: var(--pg35-radius);
  padding: 1.3rem;
  margin: 1rem 0;
}
.pg35-card h3 { font-size: 1.5rem; color: var(--pg35-primary-soft); }
.pg35-card p { margin: 0 0 0.6rem; color: var(--pg35-text-dim); }

.pg35-card-row {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}
.pg35-card-row .pg35-ico {
  flex: 0 0 auto;
  width: 4rem; height: 4rem;
  border-radius: 10px;
  background: rgba(222,184,135,0.12);
  display: inline-flex;
  align-items: center; justify-content: center;
  color: var(--pg35-primary);
  font-size: 2rem;
}

/* ---------- Features / list ---------- */
.pg35-feature-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.7rem;
}
.pg35-feature {
  background: var(--pg35-card);
  border: 1px solid var(--pg35-line);
  border-radius: var(--pg35-radius-sm);
  padding: 1rem;
  text-align: center;
}
.pg35-feature .pg35-ico {
  font-size: 2.2rem;
  color: var(--pg35-primary);
  margin-bottom: 0.4rem;
}
.pg35-feature h4 { font-size: 1.3rem; margin: 0 0 0.3rem; }
.pg35-feature p { font-size: 1.15rem; margin: 0; color: var(--pg35-text-dim); }

/* ---------- Steps ---------- */
.pg35-step {
  display: flex;
  gap: 0.9rem;
  align-items: flex-start;
  margin: 0.8rem 0;
}
.pg35-step-num {
  flex: 0 0 auto;
  width: 2.8rem; height: 2.8rem;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--pg35-primary), var(--pg35-accent));
  color: #2a1a08;
  font-weight: 800;
  display: inline-flex;
  align-items: center; justify-content: center;
}

/* ---------- Winners ---------- */
.pg35-winners {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.6rem;
}
.pg35-winner {
  background: var(--pg35-card);
  border: 1px solid var(--pg35-line);
  border-radius: var(--pg35-radius-sm);
  padding: 0.7rem;
  font-size: 1.15rem;
}
.pg35-winner b { color: var(--pg35-primary); }

/* ---------- Testimonials ---------- */
.pg35-quote {
  border-left: 3px solid var(--pg35-primary);
  padding: 0.6rem 0.9rem;
  margin: 0.7rem 0;
  background: var(--pg35-card);
  border-radius: 0 8px 8px 0;
}
.pg35-quote p { margin: 0 0 0.3rem; font-style: italic; color: var(--pg35-text); }
.pg35-quote span { color: var(--pg35-primary); font-size: 1.15rem; font-weight: 600; }

/* ---------- Payment ---------- */
.pg35-pay-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.pg35-pay {
  flex: 1 1 30%;
  background: var(--pg35-card);
  border: 1px solid var(--pg35-line);
  border-radius: 8px;
  padding: 0.7rem;
  text-align: center;
  font-size: 1.15rem;
  color: var(--pg35-text-dim);
}
.pg35-pay i { font-size: 1.6rem; color: var(--pg35-primary); display: block; margin-bottom: 0.3rem; }

/* ---------- RTP table ---------- */
.pg35-rtp-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 1.2rem;
}
.pg35-rtp-table th, .pg35-rtp-table td {
  padding: 0.6rem 0.4rem;
  border-bottom: 1px solid var(--pg35-line);
  text-align: left;
}
.pg35-rtp-table th { color: var(--pg35-primary); font-size: 1.15rem; }
.pg35-rtp-bar {
  height: 6px;
  background: rgba(255,255,255,0.08);
  border-radius: 4px;
  overflow: hidden;
}
.pg35-rtp-bar span {
  display: block;
  height: 100%;
  background: linear-gradient(90deg, var(--pg35-primary), var(--pg35-accent));
}

/* ---------- FAQ ---------- */
.pg35-faq { margin: 0.7rem 0; }
.pg35-faq h3 { font-size: 1.35rem; color: var(--pg35-primary); margin-bottom: 0.3rem; }
.pg35-faq p { margin: 0 0 0.8rem; color: var(--pg35-text-dim); }

/* ---------- CTA banner ---------- */
.pg35-cta {
  background: linear-gradient(135deg, var(--pg35-accent), var(--pg35-bg));
  border: 1px solid var(--pg35-primary);
  border-radius: var(--pg35-radius);
  padding: 1.6rem;
  text-align: center;
  margin: 1.6rem 0;
  box-shadow: var(--pg35-shadow);
}
.pg35-cta h3 { color: var(--pg35-primary-soft); font-size: 1.7rem; margin-bottom: 0.4rem; }
.pg35-cta p { color: var(--pg35-text-dim); margin: 0 0 1rem; }

/* ---------- Achievements ---------- */
.pg35-stat-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.6rem;
  text-align: center;
}
.pg35-stat b { display: block; font-size: 1.8rem; color: var(--pg35-primary); }
.pg35-stat span { font-size: 1.1rem; color: var(--pg35-text-dim); }

/* ---------- SEO prose ---------- */
.pg35-prose p { color: var(--pg35-text-dim); margin: 0 0 0.8rem; }
.pg35-prose strong { color: var(--pg35-primary-soft); }

/* ---------- Footer ---------- */
.pg35-footer {
  background: rgba(27,38,59,0.95);
  border-top: 1px solid var(--pg35-line);
  padding: 2rem 0 1rem;
  margin-top: 2rem;
}
.pg35-footer p { color: var(--pg35-text-dim); font-size: 1.2rem; }
.pg35-footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
  margin: 1rem 0;
}
.pg35-footer-links a {
  font-size: 1.2rem;
  color: var(--pg35-text);
  border: 1px solid var(--pg35-line);
  padding: 0.3rem 0.7rem;
  border-radius: 6px;
}
.pg35-footer-links a:hover { color: var(--pg35-primary); border-color: var(--pg35-primary); }
.pg35-footer-copy { font-size: 1.1rem; color: var(--pg35-text-dim); border-top: 1px solid var(--pg35-line); padding-top: 1rem; margin-top: 1rem; }

/* ---------- Mobile bottom nav ---------- */
.pg35-bottom-nav {
  position: fixed;
  bottom: 0; left: 0; right: 0;
  height: 6rem;
  background: linear-gradient(180deg, rgba(27,38,59,0.98), rgba(47,47,47,0.98));
  border-top: 1px solid var(--pg35-primary);
  display: flex;
  justify-content: space-around;
  align-items: center;
  z-index: 1000;
  box-shadow: 0 -4px 18px rgba(0,0,0,0.35);
}
.pg35-bottom-nav a {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  color: var(--pg35-text-dim);
  font-size: 1.05rem;
  min-width: 60px;
  min-height: 56px;
  text-decoration: none;
  transition: color .2s ease, transform .15s ease;
}
.pg35-bottom-nav a:hover { color: var(--pg35-primary); text-decoration: none; transform: translateY(-1px); }
.pg35-bottom-nav a:active { transform: scale(0.92); }
.pg35-bottom-nav a i { font-size: 2.2rem; }
.pg35-bottom-nav .pg35-nav-current { color: var(--pg35-primary); }
.pg35-bottom-nav .pg35-nav-current i { color: var(--pg35-primary-soft); }
.pg35-nav-promo {
  position: relative;
}
.pg35-nav-promo::after {
  content: "HOT";
  position: absolute;
  top: 4px; right: 14px;
  background: var(--pg35-accent);
  color: #fff;
  font-size: 0.85rem;
  font-weight: 800;
  padding: 0 4px;
  border-radius: 4px;
  line-height: 1.4;
}

/* ---------- Back to top ---------- */
.pg35-top-btn {
  position: fixed;
  right: 14px;
  bottom: 7rem;
  width: 3.8rem; height: 3.8rem;
  border-radius: 50%;
  background: var(--pg35-primary);
  color: #2a1a08;
  display: inline-flex;
  align-items: center; justify-content: center;
  font-size: 1.8rem;
  border: none;
  cursor: pointer;
  z-index: 999;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: opacity .25s, transform .25s, visibility .25s;
  box-shadow: var(--pg35-shadow);
}
.pg35-top-show { opacity: 1; visibility: visible; transform: translateY(0); }

/* ---------- Desktop rules ---------- */
@media (min-width: 769px) {
  .pg35-bottom-nav { display: none; }
  .pg35-container { max-width: 760px; }
  main.pg35-main { padding-bottom: 2rem; }
  .pg35-grid { grid-template-columns: repeat(5, 1fr); }
  .pg35-feature-grid { grid-template-columns: repeat(4, 1fr); }
  .pg35-winners { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 768px) {
  main.pg35-main { padding-bottom: 8.4rem; }
}

/* ---------- Utilities ---------- */
.pg35-text-center { text-align: center; }
.pg35-mt-1 { margin-top: 0.6rem; }
.pg35-mt-2 { margin-top: 1.2rem; }
.pg35-mb-1 { margin-bottom: 0.6rem; }
.pg35-hidden { display: none !important; }
.pg35-link-strong { color: var(--pg35-primary); font-weight: 700; }
.pg35-link-strong:hover { color: var(--pg35-primary-soft); }