/* =============================================================
   Sunwin Coolplus - design-9ab7.css
   All custom classes use prefix: gb73-
   Palette: #FF4500 / #0C0C0C / #E5E5E5 / #DEB887 / #FA8072 / #FFB74D
   ============================================================= */

/* ---------- Reset & Base ---------- */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { font-size: 62.5%; -webkit-text-size-adjust: 100%; }
body {
  font-family: "Be Vietnam Pro", "Segoe UI", "Roboto", system-ui, sans-serif;
  background: #0C0C0C;
  color: #E5E5E5;
  line-height: 1.6;
  font-size: 1.5rem;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: #FFB74D; text-decoration: none; transition: color .2s ease; }
a:hover { color: #FF4500; }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
h1, h2, h3, h4 { line-height: 1.3; font-weight: 700; color: #fff; }
h2 { font-size: 2.2rem; }
h3 { font-size: 1.8rem; }
p { margin-bottom: 1.2rem; color: #cfcfcf; }

.gb73-container { width: 100%; max-width: 430px; margin: 0 auto; padding: 0 14px; position: relative; }
@media (min-width: 768px) { .gb73-container { max-width: 960px; padding: 0 24px; } }

/* ---------- Header ---------- */
.gb73-header {
  position: sticky; top: 0; z-index: 1000;
  background: rgba(12,12,12,0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(222,184,135,0.18);
  transition: box-shadow .25s ease, background .25s ease;
}
.gb73-header-scrolled { box-shadow: 0 4px 18px rgba(0,0,0,0.55); background: rgba(12,12,12,0.98); }
.gb73-header-inner { display: flex; align-items: center; justify-content: space-between; height: 60px; }
.gb73-logo { display: flex; align-items: center; gap: 8px; font-size: 1.7rem; font-weight: 800; color: #fff; }
.gb73-logo img { width: 32px; height: 32px; border-radius: 8px; }
.gb73-logo span b { color: #FF4500; }
.gb73-logo small { color: #DEB887; font-size: 1.05rem; font-weight: 600; display: block; margin-top: -3px; }

.gb73-nav-actions { display: flex; align-items: center; gap: 8px; }
.gb73-btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 8px 16px; border-radius: 999px; font-weight: 700; font-size: 1.35rem;
  transition: transform .15s ease, box-shadow .2s ease, background .2s ease;
}
.gb73-btn:active { transform: scale(0.96); }
.gb73-btn-register {
  background: linear-gradient(135deg, #FF4500, #FA8072);
  color: #fff; box-shadow: 0 4px 12px rgba(255,69,0,0.35);
}
.gb73-btn-register:hover { box-shadow: 0 6px 18px rgba(255,69,0,0.55); color: #fff; }
.gb73-btn-login {
  background: transparent; color: #FFB74D; border: 1.5px solid #FFB74D;
}
.gb73-btn-login:hover { background: rgba(255,183,77,0.12); color: #FFB74D; }

.gb73-menu-btn {
  display: none; width: 40px; height: 40px; align-items: center; justify-content: center;
  color: #FFB74D; font-size: 2.2rem;
}
@media (max-width: 767px) { .gb73-menu-btn { display: inline-flex; } .gb73-btn { padding: 7px 13px; font-size: 1.25rem; } }

/* ---------- Desktop nav ---------- */
.gb73-desktop-nav { display: none; }
@media (min-width: 768px) {
  .gb73-desktop-nav { display: flex; gap: 20px; align-items: center; }
  .gb73-desktop-nav a { color: #E5E5E5; font-weight: 600; font-size: 1.35rem; }
  .gb73-desktop-nav a:hover { color: #FFB74D; }
}

/* ---------- Mobile menu ---------- */
.gb73-menu-overlay {
  position: fixed; inset: 0; background: rgba(0,0,0,0.65);
  opacity: 0; pointer-events: none; transition: opacity .25s ease; z-index: 9998;
}
.gb73-menu-overlay.gb73-menu-open { opacity: 1; pointer-events: auto; }
.gb73-mobile-menu {
  position: fixed; top: 0; right: -280px; width: 260px; height: 100vh;
  background: #141414; z-index: 9999; transition: right .3s ease;
  padding: 70px 18px 24px; overflow-y: auto; border-left: 1px solid rgba(222,184,135,0.2);
}
.gb73-mobile-menu.gb73-menu-open { right: 0; }
.gb73-mobile-menu a {
  display: block; padding: 13px 14px; border-radius: 10px; color: #E5E5E5;
  font-weight: 600; margin-bottom: 4px; border: 1px solid transparent;
}
.gb73-mobile-menu a:hover { background: rgba(255,69,0,0.12); color: #FFB74D; border-color: rgba(255,183,77,0.25); }
.gb73-menu-close {
  position: absolute; top: 14px; right: 14px; color: #FFB74D; font-size: 2rem; width: 40px; height: 40px;
}
body.gb73-no-scroll { overflow: hidden; }

/* ---------- Hero ---------- */
.gb73-hero {
  position: relative; margin-top: 10px; border-radius: 18px; overflow: hidden;
  box-shadow: 0 10px 30px rgba(0,0,0,0.5);
}
.gb73-hero-track { position: relative; width: 100%; height: 220px; }
@media (min-width: 768px) { .gb73-hero-track { height: 340px; } }
.gb73-hero-slide {
  position: absolute; inset: 0; opacity: 0; transition: opacity .6s ease;
  display: flex; flex-direction: column; justify-content: flex-end;
  padding: 18px; color: #fff;
  background-size: cover; background-position: center;
}
.gb73-hero-slide::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(12,12,12,0.92) 0%, rgba(12,12,12,0.35) 55%, transparent 100%);
}
.gb73-hero-slide > * { position: relative; z-index: 2; }
.gb73-slide-active { opacity: 1; z-index: 2; }
.gb73-hero-slide h1, .gb73-hero-slide h2 { color: #fff; text-shadow: 0 2px 12px rgba(0,0,0,0.7); }
.gb73-hero-slide h1 { font-size: 2.4rem; }
.gb73-hero-slide p { color: #FFB74D; font-weight: 600; margin: 4px 0 10px; }
@media (min-width: 768px) { .gb73-hero-slide h1 { font-size: 3.6rem; } }

.gb73-hero-cta { display: inline-flex; align-items: center; gap: 6px; padding: 10px 22px; background: linear-gradient(135deg, #FF4500, #FA8072); color: #fff; border-radius: 999px; font-weight: 800; width: fit-content; box-shadow: 0 5px 14px rgba(255,69,0,0.5); }
.gb73-hero-cta:hover { color: #fff; transform: translateY(-1px); }
.gb73-hero-prev, .gb73-hero-next {
  position: absolute; top: 50%; transform: translateY(-50%); z-index: 5;
  width: 38px; height: 38px; border-radius: 50%; background: rgba(0,0,0,0.45);
  color: #fff; font-size: 1.8rem; display: flex; align-items: center; justify-content: center;
}
.gb73-hero-prev { left: 8px; } .gb73-hero-next { right: 8px; }
.gb73-hero-dots { position: absolute; bottom: 8px; left: 50%; transform: translateX(-50%); display: flex; gap: 6px; z-index: 5; }
.gb73-hero-dot { width: 8px; height: 8px; border-radius: 50%; background: rgba(255,255,255,0.4); transition: all .2s ease; }
.gb73-dot-active { background: #FF4500; width: 22px; border-radius: 4px; }

/* ---------- Section ---------- */
.gb73-section { padding: 28px 0; }
.gb73-section-title { display: flex; align-items: center; gap: 10px; margin-bottom: 14px; }
.gb73-section-title h2 { font-size: 2.1rem; color: #fff; }
.gb73-section-title .gb73-icon { color: #FF4500; font-size: 2.2rem; }
.gb73-section-title small { color: #DEB887; font-weight: 600; font-size: 1.2rem; margin-left: auto; }
.gb73-divider { height: 3px; width: 60px; background: linear-gradient(90deg, #FF4500, #FFB74D); border-radius: 2px; margin-bottom: 16px; }

/* ---------- Feature strip ---------- */
.gb73-features { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; }
@media (min-width: 768px) { .gb73-features { grid-template-columns: repeat(4, 1fr); } }
.gb73-feature {
  background: linear-gradient(160deg, #1a1a1a, #141414);
  border: 1px solid rgba(222,184,135,0.18); border-radius: 14px; padding: 14px; text-align: center;
}
.gb73-feature i { font-size: 2.4rem; color: #FF4500; margin-bottom: 6px; }
.gb73-feature b { display: block; color: #fff; font-size: 1.35rem; }
.gb73-feature span { color: #9a9a9a; font-size: 1.15rem; }

/* ---------- Category tabs ---------- */
.gb73-tabs { display: flex; gap: 8px; overflow-x: auto; padding-bottom: 8px; margin-bottom: 16px; scrollbar-width: none; }
.gb73-tabs::-webkit-scrollbar { display: none; }
.gb73-tab {
  flex: 0 0 auto; padding: 8px 16px; border-radius: 999px; background: #1c1c1c;
  color: #E5E5E5; font-weight: 700; font-size: 1.25rem; border: 1px solid rgba(222,184,135,0.2); white-space: nowrap;
}
.gb73-tab-active { background: linear-gradient(135deg, #FF4500, #FA8072); color: #fff; border-color: transparent; }

/* ---------- Game grid ---------- */
.gb73-game-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-bottom: 22px; }
@media (min-width: 768px) { .gb73-game-grid { grid-template-columns: repeat(5, 1fr); gap: 14px; } }
.gb73-grid-hide { display: none; }
.gb73-game-card {
  position: relative; border-radius: 12px; overflow: hidden; background: #181818;
  border: 1px solid rgba(222,184,135,0.15); transition: transform .2s ease, box-shadow .2s ease; cursor: pointer;
}
.gb73-game-card:hover { transform: translateY(-3px); box-shadow: 0 8px 22px rgba(255,69,0,0.28); border-color: rgba(255,69,0,0.5); }
.gb73-game-card img { width: 100%; aspect-ratio: 1/1; object-fit: cover; }
.gb73-game-card .gb73-game-name {
  position: absolute; bottom: 0; left: 0; right: 0; padding: 8px 6px;
  background: linear-gradient(to top, rgba(0,0,0,0.88), transparent);
  color: #fff; font-size: 1.15rem; font-weight: 700; text-align: center;
}
.gb73-game-card .gb73-game-overlay {
  position: absolute; inset: 0; background: rgba(255,69,0,0.78); opacity: 0; display: flex; align-items: center; justify-content: center;
  transition: opacity .2s ease;
}
.gb73-game-card:hover .gb73-game-overlay { opacity: 1; }
.gb73-game-overlay i { color: #fff; font-size: 2.4rem; }
.gb73-cat-tag {
  display: inline-block; padding: 3px 10px; border-radius: 999px; background: rgba(255,69,0,0.18);
  color: #FFB74D; font-size: 1.1rem; font-weight: 700; margin-bottom: 8px;
}

/* ---------- Featured ---------- */
.gb73-featured { display: grid; grid-template-columns: 1fr; gap: 12px; }
@media (min-width: 768px) { .gb73-featured { grid-template-columns: repeat(3, 1fr); } }
.gb73-feature-card {
  background: linear-gradient(160deg, #1a1a1a, #0f0f0f); border-radius: 16px; overflow: hidden;
  border: 1px solid rgba(222,184,135,0.2);
}
.gb73-feature-card img { width: 100%; height: 170px; object-fit: cover; }
.gb73-feature-card .gb73-fc-body { padding: 14px; }
.gb73-feature-card h3 { color: #fff; margin-bottom: 6px; }
.gb73-feature-card p { color: #b5b5b5; font-size: 1.3rem; margin-bottom: 10px; }
.gb73-feature-card a.gb73-read { color: #FFB74D; font-weight: 700; font-size: 1.25rem; }

/* ---------- Promo banner ---------- */
.gb73-promo-banner {
  background: linear-gradient(120deg, #FF4500 0%, #FA8072 50%, #FFB74D 100%);
  border-radius: 16px; padding: 20px; text-align: center; color: #fff; margin: 12px 0;
  box-shadow: 0 10px 26px rgba(255,69,0,0.35);
}
.gb73-promo-banner h3 { color: #fff; font-size: 2rem; margin-bottom: 6px; }
.gb73-promo-banner p { color: #fff; opacity: 0.95; margin-bottom: 12px; }
.gb73-promo-banner a {
  display: inline-block; background: #0C0C0C; color: #FFB74D; padding: 10px 24px;
  border-radius: 999px; font-weight: 800;
}
.gb73-promo-banner a:hover { color: #FF4500; }

/* ---------- SEO content ---------- */
.gb73-seo-content { background: #131313; border-radius: 16px; padding: 20px; border: 1px solid rgba(222,184,135,0.15); }
.gb73-seo-content h2 { color: #FFB74D; margin: 16px 0 8px; font-size: 1.9rem; }
.gb73-seo-content h2:first-child { margin-top: 0; }
.gb73-seo-content h3 { color: #fff; margin: 12px 0 6px; font-size: 1.6rem; }
.gb73-seo-content p, .gb73-seo-content li { color: #c5c5c5; font-size: 1.4rem; }
.gb73-seo-content ul { padding-left: 18px; margin-bottom: 12px; list-style: disc; }
.gb73-seo-content li { margin-bottom: 6px; }
.gb73-seo-content strong { color: #fff; }

/* ---------- FAQ ---------- */
.gb73-faq-item { background: #181818; border: 1px solid rgba(222,184,135,0.18); border-radius: 12px; margin-bottom: 10px; overflow: hidden; }
.gb73-faq-q { width: 100%; text-align: left; padding: 14px 16px; font-weight: 700; color: #fff; font-size: 1.4rem; display: flex; justify-content: space-between; align-items: center; gap: 10px; }
.gb73-faq-q i { color: #FF4500; transition: transform .25s ease; }
.gb73-faq-item.gb73-faq-open .gb73-faq-q i { transform: rotate(45deg); }
.gb73-faq-a { max-height: 0; overflow: hidden; transition: max-height .3s ease, padding .3s ease; padding: 0 16px; }
.gb73-faq-item.gb73-faq-open .gb73-faq-a { max-height: 500px; padding: 0 16px 14px; }

/* ---------- Footer ---------- */
.gb73-footer { background: #0a0a0a; border-top: 1px solid rgba(222,184,135,0.2); padding: 24px 0 90px; margin-top: 20px; }
.gb73-footer-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
@media (min-width: 768px) { .gb73-footer-grid { grid-template-columns: repeat(4, 1fr); } }
.gb73-footer h4 { color: #FFB74D; font-size: 1.4rem; margin-bottom: 10px; }
.gb73-footer a { display: block; color: #9a9a9a; padding: 4px 0; font-size: 1.25rem; }
.gb73-footer a:hover { color: #FF4500; }
.gb73-footer-bottom { text-align: center; padding-top: 18px; margin-top: 18px; border-top: 1px solid rgba(255,255,255,0.06); color: #777; font-size: 1.15rem; }

/* ---------- Bottom nav ---------- */
.gb73-bottom-nav {
  position: fixed; bottom: 0; left: 0; right: 0; height: 62px; z-index: 1000;
  background: rgba(10,10,10,0.97); backdrop-filter: blur(10px);
  border-top: 1px solid rgba(222,184,135,0.25);
  display: flex; justify-content: space-around; align-items: center; padding: 0 4px;
}
.gb73-bottom-nav a {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  min-width: 60px; min-height: 60px; color: #9a9a9a; font-size: 1.05rem; gap: 2px; transition: color .2s ease;
}
.gb73-bottom-nav a i { font-size: 2.2rem; }
.gb73-bottom-nav a:hover, .gb73-bottom-nav a.gb73-nav-active { color: #FF4500; }
.gb73-bottom-nav a.gb73-nav-promo { color: #FFB74D; }
.gb73-bottom-nav a.gb73-nav-promo:hover { color: #FF4500; }
@media (min-width: 769px) { .gb73-bottom-nav { display: none; } }
@media (max-width: 768px) { .gb73-footer { padding-bottom: 80px; } body { padding-bottom: 0; } main.gb73-main { padding-bottom: 80px; } }

/* ---------- To-top ---------- */
.gb73-to-top {
  position: fixed; right: 14px; bottom: 76px; width: 42px; height: 42px; border-radius: 50%;
  background: linear-gradient(135deg, #FF4500, #FFB74D); color: #fff; z-index: 999;
  display: flex; align-items: center; justify-content: center; font-size: 1.8rem;
  opacity: 0; pointer-events: none; transition: opacity .25s ease, transform .2s ease;
  box-shadow: 0 6px 16px rgba(255,69,0,0.45);
}
.gb73-to-top.gb73-to-top-show { opacity: 1; pointer-events: auto; }

/* ---------- Marquee ---------- */
.gb73-marquee {
  background: linear-gradient(90deg, #FF4500, #FFB74D); color: #fff; padding: 7px 0;
  font-weight: 700; font-size: 1.25rem; overflow: hidden; white-space: nowrap;
}
.gb73-marquee span { display: inline-block; padding-left: 100%; animation: gb73marq 22s linear infinite; }
@keyframes gb73marq { to { transform: translateX(-100%); } }

/* ---------- Trust badges ---------- */
.gb73-trust { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 8px; }
.gb73-trust span { background: rgba(222,184,135,0.12); color: #DEB887; padding: 5px 11px; border-radius: 8px; font-size: 1.15rem; font-weight: 600; border: 1px solid rgba(222,184,135,0.25); }