/**
 * 67bd Design Stylesheet
 * All classes use gb18- prefix for namespace isolation
 * Color palette: #BF360C | #0D1117 | #66CDAA | #C71585
 * Mobile-first responsive design
 */

/* === CSS Variables === */
:root {
  --gb18-primary: #BF360C;
  --gb18-bg: #0D1117;
  --gb18-accent: #66CDAA;
  --gb18-highlight: #C71585;
  --gb18-text: #E8E8E8;
  --gb18-text-muted: #9CA3AF;
  --gb18-card-bg: #161B22;
  --gb18-card-border: #21262D;
  --gb18-radius: 10px;
  --gb18-radius-sm: 6px;
  --gb18-header-h: 56px;
  --gb18-bnav-h: 60px;
  --gb18-shadow: 0 4px 14px rgba(0,0,0,0.35);
  --gb18-transition: all 0.3s ease;
}

/* === Reset & Base === */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 62.5%; scroll-behavior: smooth; }
body {
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  background: var(--gb18-bg);
  color: var(--gb18-text);
  line-height: 1.5rem;
  font-size: 1.4rem;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
a { text-decoration: none; color: inherit; }
img { max-width: 100%; height: auto; display: block; }
ul, ol { list-style: none; }

/* === Header === */
.gb18-header {
  position: fixed; top: 0; left: 0; right: 0;
  height: var(--gb18-header-h);
  background: linear-gradient(135deg, #0D1117 0%, #1A1F2B 100%);
  border-bottom: 2px solid var(--gb18-primary);
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 1.2rem;
  z-index: 1000;
}
.gb18-header-left {
  display: flex; align-items: center; gap: 0.8rem;
}
.gb18-header-logo {
  width: 30px; height: 30px; border-radius: 6px;
}
.gb18-header-brand {
  font-size: 1.8rem; font-weight: 800;
  background: linear-gradient(90deg, var(--gb18-primary), var(--gb18-highlight));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}
.gb18-header-right {
  display: flex; align-items: center; gap: 0.6rem;
}
.gb18-header-btn {
  padding: 0.5rem 1.2rem; border-radius: var(--gb18-radius-sm);
  font-size: 1.2rem; font-weight: 700; cursor: pointer;
  border: none; transition: var(--gb18-transition);
  text-transform: uppercase;
}
.gb18-btn-register {
  background: linear-gradient(135deg, var(--gb18-primary), #E65100);
  color: #fff;
}
.gb18-btn-register:hover { transform: scale(1.05); box-shadow: 0 2px 10px rgba(191,54,12,0.5); }
.gb18-btn-login {
  background: transparent; color: var(--gb18-accent);
  border: 1.5px solid var(--gb18-accent);
}
.gb18-btn-login:hover { background: rgba(102,205,170,0.1); }
.gb18-hamburger {
  background: none; border: none; color: var(--gb18-text);
  font-size: 2.2rem; cursor: pointer; padding: 0.4rem;
  display: flex; align-items: center;
}

/* === Mobile Menu === */
.gb18-menu-overlay {
  position: fixed; inset: 0; background: rgba(0,0,0,0.6);
  z-index: 9998; opacity: 0; visibility: hidden;
  transition: var(--gb18-transition);
}
.gb18-overlay-active { opacity: 1; visibility: visible; }
.gb18-mobile-menu {
  position: fixed; top: 0; right: -280px; width: 280px; height: 100%;
  background: #12161E; z-index: 9999;
  transition: right 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  padding: 2rem 1.5rem; overflow-y: auto;
}
.gb18-menu-active { right: 0; }
.gb18-menu-close {
  position: absolute; top: 1rem; right: 1.2rem;
  background: none; border: none; color: var(--gb18-text-muted);
  font-size: 2rem; cursor: pointer;
}
.gb18-menu-title {
  font-size: 1.6rem; font-weight: 700; margin-bottom: 2rem;
  color: var(--gb18-primary); padding-bottom: 1rem;
  border-bottom: 1px solid var(--gb18-card-border);
}
.gb18-menu-link {
  display: flex; align-items: center; gap: 1rem;
  padding: 1rem 0; color: var(--gb18-text); font-size: 1.4rem;
  border-bottom: 1px solid var(--gb18-card-border);
  transition: var(--gb18-transition);
}
.gb18-menu-link:hover { color: var(--gb18-accent); padding-left: 0.5rem; }
.gb18-menu-link i, .gb18-menu-link .material-icons { font-size: 2rem; width: 2.4rem; text-align: center; }

/* === Main Content === */
.gb18-main {
  margin-top: var(--gb18-header-h);
  padding-bottom: 2rem;
  min-height: 60vh;
}

/* === Carousel === */
.gb18-carousel {
  position: relative; width: 100%; overflow: hidden;
  border-radius: 0 0 var(--gb18-radius) var(--gb18-radius);
}
.gb18-slides-wrapper { position: relative; }
.gb18-slide {
  display: none; cursor: pointer; width: 100%;
}
.gb18-slide-active { display: block; animation: gb18-fadeIn 0.6s ease; }
.gb18-slide img { width: 100%; height: auto; min-height: 180px; object-fit: cover; }
.gb18-slide-dots {
  position: absolute; bottom: 10px; left: 50%; transform: translateX(-50%);
  display: flex; gap: 8px;
}
.gb18-slide-dot {
  width: 10px; height: 10px; border-radius: 50%;
  background: rgba(255,255,255,0.4); cursor: pointer;
  transition: var(--gb18-transition); border: none;
}
.gb18-dot-active { background: var(--gb18-primary); transform: scale(1.3); }

@keyframes gb18-fadeIn {
  from { opacity: 0; } to { opacity: 1; }
}

/* === Section Titles === */
.gb18-section-title {
  font-size: 1.8rem; font-weight: 800; margin: 2rem 1.2rem 1rem;
  padding-left: 1rem;
  border-left: 4px solid var(--gb18-primary);
  color: #fff;
}
.gb18-section-title span {
  color: var(--gb18-accent);
}

/* === Game Grid === */
.gb18-game-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.8rem;
  padding: 0.8rem 1.2rem;
}
.gb18-game-item {
  text-align: center; cursor: pointer;
  transition: var(--gb18-transition);
  border-radius: var(--gb18-radius-sm);
  padding: 0.5rem 0.3rem;
  background: var(--gb18-card-bg);
  border: 1px solid var(--gb18-card-border);
}
.gb18-game-item:hover {
  transform: translateY(-3px);
  box-shadow: 0 4px 12px rgba(191,54,12,0.3);
  border-color: var(--gb18-primary);
}
.gb18-game-icon {
  width: 100%; aspect-ratio: 1; border-radius: var(--gb18-radius-sm);
  object-fit: cover; margin-bottom: 0.4rem;
}
.gb18-game-name {
  font-size: 1.1rem; color: var(--gb18-text-muted);
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
  line-height: 1.3rem;
}

/* === Category Label === */
.gb18-cat-label {
  font-size: 1.4rem; font-weight: 700; margin: 1.5rem 1.2rem 0.8rem;
  padding: 0.6rem 1.2rem; border-radius: var(--gb18-radius-sm);
  display: inline-block;
}
.gb18-cat-fishing { background: rgba(102,205,170,0.15); color: var(--gb18-accent); border-left: 3px solid var(--gb18-accent); }
.gb18-cat-slot { background: rgba(191,54,12,0.15); color: var(--gb18-primary); border-left: 3px solid var(--gb18-primary); }
.gb18-cat-poker { background: rgba(199,21,133,0.15); color: var(--gb18-highlight); border-left: 3px solid var(--gb18-highlight); }
.gb18-casino-label { background: rgba(255,193,7,0.15); color: #FFC107; border-left: 3px solid #FFC107; }
.gb18-cat-hot { background: rgba(255,87,34,0.15); color: #FF5722; border-left: 3px solid #FF5722; }

/* === Promo Buttons & Links === */
.gb18-promo-btn {
  display: inline-block;
  background: linear-gradient(135deg, var(--gb18-primary), #E65100);
  color: #fff; padding: 1rem 2.5rem; border-radius: 50px;
  font-size: 1.6rem; font-weight: 700; cursor: pointer;
  border: none; transition: var(--gb18-transition);
  text-align: center;
  box-shadow: 0 4px 15px rgba(191,54,12,0.4);
}
.gb18-promo-btn:hover { transform: scale(1.05); box-shadow: 0 6px 20px rgba(191,54,12,0.6); }
.gb18-promo-link {
  color: var(--gb18-accent); font-weight: 700;
  border-bottom: 1px dashed var(--gb18-accent);
  cursor: pointer; transition: var(--gb18-transition);
}
.gb18-promo-link:hover { color: #fff; border-bottom-color: #fff; }

/* === Content Cards === */
.gb18-card {
  background: var(--gb18-card-bg);
  border: 1px solid var(--gb18-card-border);
  border-radius: var(--gb18-radius);
  padding: 1.5rem;
  margin: 1rem 1.2rem;
}
.gb18-card-title {
  font-size: 1.5rem; font-weight: 700; margin-bottom: 0.8rem;
  color: #fff;
}
.gb18-card-text {
  font-size: 1.3rem; line-height: 2rem; color: var(--gb18-text-muted);
}
.gb18-card-text p { margin-bottom: 0.8rem; }

/* === Info Section === */
.gb18-info-block {
  padding: 1.5rem 1.2rem;
}
.gb18-info-block h2 {
  font-size: 1.7rem; font-weight: 700; margin-bottom: 1rem;
  color: #fff;
}
.gb18-info-block h3 {
  font-size: 1.5rem; font-weight: 600; margin: 1rem 0 0.5rem;
  color: var(--gb18-accent);
}
.gb18-info-block p {
  font-size: 1.3rem; line-height: 2.1rem; color: var(--gb18-text-muted);
  margin-bottom: 0.8rem;
}

/* === Winners Table === */
.gb18-winners {
  margin: 1rem 1.2rem; border-radius: var(--gb18-radius); overflow: hidden;
  background: var(--gb18-card-bg); border: 1px solid var(--gb18-card-border);
}
.gb18-winners-header {
  background: linear-gradient(135deg, var(--gb18-primary), #E65100);
  padding: 0.8rem 1rem; font-size: 1.3rem; font-weight: 700; color: #fff;
}
.gb18-winner-row {
  display: flex; justify-content: space-between; align-items: center;
  padding: 0.7rem 1rem; border-bottom: 1px solid var(--gb18-card-border);
  font-size: 1.2rem;
}
.gb18-winner-row:last-child { border-bottom: none; }
.gb18-winner-name { color: var(--gb18-accent); font-weight: 600; }
.gb18-winner-game { color: var(--gb18-text-muted); }
.gb18-winner-amount { color: #FFD700; font-weight: 700; }

/* === Testimonials === */
.gb18-testimonial {
  background: var(--gb18-card-bg); border: 1px solid var(--gb18-card-border);
  border-radius: var(--gb18-radius); padding: 1.2rem;
  margin: 0.8rem 1.2rem;
}
.gb18-testimonial-text {
  font-size: 1.2rem; color: var(--gb18-text-muted); line-height: 1.8rem;
  font-style: italic; margin-bottom: 0.8rem;
}
.gb18-testimonial-author {
  font-size: 1.1rem; color: var(--gb18-accent); font-weight: 600;
}

/* === Payment Methods === */
.gb18-payment-grid {
  display: flex; flex-wrap: wrap; gap: 0.8rem;
  padding: 1rem 1.2rem; justify-content: center;
}
.gb18-payment-item {
  background: var(--gb18-card-bg); border: 1px solid var(--gb18-card-border);
  border-radius: var(--gb18-radius-sm); padding: 0.6rem 1.2rem;
  font-size: 1.2rem; color: var(--gb18-text-muted);
  display: flex; align-items: center; gap: 0.5rem;
}

/* === Footer === */
.gb18-footer {
  background: linear-gradient(180deg, #0D1117, #070A0F);
  border-top: 2px solid var(--gb18-primary);
  padding: 2rem 1.2rem 1.5rem;
}
.gb18-footer-brand {
  font-size: 1.6rem; font-weight: 800; margin-bottom: 0.8rem;
  color: var(--gb18-primary);
}
.gb18-footer-desc {
  font-size: 1.2rem; color: var(--gb18-text-muted); line-height: 1.8rem;
  margin-bottom: 1.2rem;
}
.gb18-footer-links {
  display: flex; flex-wrap: wrap; gap: 0.6rem;
  margin-bottom: 1.2rem;
}
.gb18-footer-link {
  background: var(--gb18-card-bg); border: 1px solid var(--gb18-card-border);
  border-radius: var(--gb18-radius-sm); padding: 0.5rem 1rem;
  font-size: 1.1rem; color: var(--gb18-text-muted);
  transition: var(--gb18-transition);
}
.gb18-footer-link:hover { color: var(--gb18-accent); border-color: var(--gb18-accent); }
.gb18-footer-copy {
  font-size: 1.1rem; color: var(--gb18-text-muted); text-align: center;
  padding-top: 1rem; border-top: 1px solid var(--gb18-card-border);
}

/* === Bottom Navigation === */
.gb18-bottom-nav {
  position: fixed; bottom: 0; left: 0; right: 0;
  height: var(--gb18-bnav-h);
  background: linear-gradient(180deg, #1A1F2B, #0D1117);
  border-top: 2px solid var(--gb18-primary);
  display: flex; justify-content: space-around; align-items: center;
  z-index: 1000;
  padding: 0 0.3rem;
}
.gb18-bnav-btn {
  display: flex; flex-direction: column; align-items: center;
  justify-content: center;
  min-width: 58px; min-height: 52px;
  background: none; border: none;
  color: var(--gb18-text-muted);
  cursor: pointer; transition: var(--gb18-transition);
  padding: 0.3rem;
  border-radius: var(--gb18-radius-sm);
}
.gb18-bnav-btn i,
.gb18-bnav-btn .material-icons,
.gb18-bnav-btn ion-icon {
  font-size: 2.2rem; margin-bottom: 0.2rem;
}
.gb18-bnav-btn span {
  font-size: 1rem; line-height: 1.2rem;
}
.gb18-bnav-btn:hover,
.gb18-bnav-active {
  color: var(--gb18-primary);
  transform: scale(1.1);
}
.gb18-bnav-active {
  background: rgba(191,54,12,0.1);
}

/* === CTA Banner === */
.gb18-cta-banner {
  background: linear-gradient(135deg, var(--gb18-primary), var(--gb18-highlight));
  margin: 1.5rem 1.2rem; border-radius: var(--gb18-radius);
  padding: 2rem 1.5rem; text-align: center;
}
.gb18-cta-banner h3 {
  font-size: 1.8rem; font-weight: 800; color: #fff; margin-bottom: 0.8rem;
}
.gb18-cta-banner p {
  font-size: 1.3rem; color: rgba(255,255,255,0.85); margin-bottom: 1.2rem;
}

/* === FAQ Accordion === */
.gb18-faq-item {
  background: var(--gb18-card-bg); border: 1px solid var(--gb18-card-border);
  border-radius: var(--gb18-radius-sm); margin: 0.6rem 1.2rem;
  overflow: hidden;
}
.gb18-faq-q {
  padding: 1rem 1.2rem; font-size: 1.3rem; font-weight: 600;
  color: #fff; cursor: pointer;
  display: flex; justify-content: space-between; align-items: center;
}
.gb18-faq-a {
  padding: 0 1.2rem 1rem; font-size: 1.2rem; color: var(--gb18-text-muted);
  line-height: 1.8rem; display: none;
}
.gb18-faq-item.open .gb18-faq-a { display: block; }
.gb18-faq-icon { font-size: 1.6rem; color: var(--gb18-primary); }

/* === App Download Section === */
.gb18-app-section {
  background: linear-gradient(135deg, rgba(191,54,12,0.15), rgba(199,21,133,0.1));
  border: 1px solid var(--gb18-primary);
  border-radius: var(--gb18-radius); padding: 1.5rem;
  margin: 1rem 1.2rem; text-align: center;
}
.gb18-app-section h3 { font-size: 1.6rem; font-weight: 700; color: #fff; margin-bottom: 0.5rem; }
.gb18-app-section p { font-size: 1.2rem; color: var(--gb18-text-muted); margin-bottom: 1rem; }
.gb18-app-badges { display: flex; gap: 0.8rem; justify-content: center; flex-wrap: wrap; }

/* === Responsive === */
@media (max-width: 768px) {
  .gb18-main { padding-bottom: calc(var(--gb18-bnav-h) + 1.5rem); }
}
@media (min-width: 769px) {
  .gb18-bottom-nav { display: none; }
  .gb18-main { max-width: 430px; margin-left: auto; margin-right: auto; margin-top: var(--gb18-header-h); }
  .gb18-header { max-width: 430px; left: 50%; transform: translateX(-50%); }
  .gb18-mobile-menu { max-width: 300px; }
}
@media (max-width: 360px) {
  .gb18-game-grid { grid-template-columns: repeat(3, 1fr); gap: 0.5rem; }
  .gb18-header-brand { font-size: 1.5rem; }
}

/* === Utilities === */
.gb18-text-center { text-align: center; }
.gb18-text-primary { color: var(--gb18-primary); }
.gb18-text-accent { color: var(--gb18-accent); }
.gb18-text-highlight { color: var(--gb18-highlight); }
.gb18-mt-1 { margin-top: 1rem; }
.gb18-mb-1 { margin-bottom: 1rem; }
.gb18-py-1 { padding: 1rem 0; }
.gb18-hidden { display: none; }
.gb18-container { max-width: 430px; margin: 0 auto; }