/* ============================================================
   123win club - core base styles
   All custom classes use "uidb-" prefix.
   Palette: #1A1A2E | #5D5D5D | #696969 | #A9A9A9 + gold/red accents
   ============================================================ */

:root {
  --uidb-primary: #1A1A2E;
  --uidb-secondary: #5D5D5D;
  --uidb-muted: #696969;
  --uidb-light: #A9A9A9;
  --uidb-bg: #0f0f1e;
  --uidb-bg2: #1A1A2E;
  --uidb-text: #f4f4f6;
  --uidb-gold: #f5c451;
  --uidb-red: #e63946;
  --uidb-green: #2ec27e;
  --uidb-card: #20203a;
  --uidb-card2: #2a2a4a;
  --uidb-border: rgba(169,169,169,0.18);
  --uidb-radius: 14px;
  --uidb-shadow: 0 6px 18px rgba(0,0,0,0.35);
  --uidb-header-h: 56px;
  --uidb-bottom-h: 60px;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--uidb-bg);
  color: var(--uidb-text);
  font-family: "Be Vietnam Pro", "Segoe UI", system-ui, -apple-system, Arial, sans-serif;
  font-size: 62.5%; /* 1rem = 10px */
  line-height: 1.5rem;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a { color: var(--uidb-gold); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; display: block; }

/* ---------- Layout ---------- */
.uidb-wrapper {
  width: 100%;
  max-width: 430px;
  margin: 0 auto;
  min-height: 100vh;
  position: relative;
  background: linear-gradient(180deg, #0f0f1e 0%, #15152a 60%, #0f0f1e 100%);
}
.uidb-container {
  width: 100%;
  padding: 0 1.4rem;
}
main.uidb-main {
  padding-top: calc(var(--uidb-header-h) + 8px);
  padding-bottom: calc(var(--uidb-bottom-h) + 24px);
}

/* ---------- Header ---------- */
.uidb-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  max-width: 430px;
  margin: 0 auto;
  height: var(--uidb-header-h);
  background: rgba(15,15,30,0.96);
  border-bottom: 1px solid var(--uidb-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 1.2rem;
  z-index: 1000;
  backdrop-filter: blur(8px);
}
.uidb-logo {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  text-decoration: none;
}
.uidb-logo img { width: 30px; height: 30px; border-radius: 8px; }
.uidb-logo .uidb-logo-name {
  font-size: 1.7rem;
  font-weight: 800;
  color: var(--uidb-gold);
  letter-spacing: 0.5px;
}
.uidb-logo .uidb-logo-name span { color: var(--uidb-text); }

.uidb-header-actions {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}
.uidb-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  min-height: 36px;
  padding: 0 1.2rem;
  border-radius: 999px;
  font-size: 1.3rem;
  font-weight: 700;
  border: none;
  cursor: pointer;
  transition: transform 0.15s ease, filter 0.15s ease;
  text-decoration: none;
  white-space: nowrap;
}
.uidb-btn:hover { text-decoration: none; transform: translateY(-1px); filter: brightness(1.08); }
.uidb-btn:active { transform: translateY(0); }
.uidb-btn-login {
  background: transparent;
  color: var(--uidb-text);
  border: 1px solid var(--uidb-border);
}
.uidb-btn-register {
  background: linear-gradient(135deg, #f5c451 0%, #e69b1c 100%);
  color: #1a1a2e;
  box-shadow: 0 4px 12px rgba(245,196,81,0.35);
}
.uidb-icon-btn {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: transparent;
  color: var(--uidb-text);
  border: 1px solid var(--uidb-border);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 1.8rem;
}

/* ---------- Mobile dropdown menu ---------- */
.uidb-mobile-menu {
  position: fixed;
  top: var(--uidb-header-h);
  left: 0;
  right: 0;
  max-width: 430px;
  margin: 0 auto;
  background: var(--uidb-bg2);
  border-bottom: 1px solid var(--uidb-border);
  box-shadow: var(--uidb-shadow);
  padding: 1rem 1.4rem 1.4rem;
  transform: translateY(-130%);
  transition: transform 0.28s ease;
  z-index: 9999;
  max-height: 75vh;
  overflow-y: auto;
}
.uidb-mobile-menu.uidb-menu-open { transform: translateY(0); }
.uidb-mobile-menu h4 {
  margin: 1rem 0 0.6rem;
  font-size: 1.25rem;
  color: var(--uidb-light);
  text-transform: uppercase;
  letter-spacing: 1px;
}
.uidb-mobile-menu a {
  display: block;
  padding: 1rem 0.6rem;
  color: var(--uidb-text);
  border-bottom: 1px solid var(--uidb-border);
  font-size: 1.35rem;
  font-weight: 600;
}
.uidb-mobile-menu a:hover { color: var(--uidb-gold); text-decoration: none; }

/* ---------- Hero / Slider ---------- */
.uidb-hero {
  position: relative;
  border-radius: var(--uidb-radius);
  overflow: hidden;
  margin: 1rem 0;
  box-shadow: var(--uidb-shadow);
  height: 190px;
}
.uidb-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 0.8s ease;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 1.4rem;
  background-size: cover;
  background-position: center;
}
.uidb-slide.uidb-slide-active { opacity: 1; }
.uidb-slide::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(0deg, rgba(15,15,30,0.85) 0%, rgba(15,15,30,0.15) 60%);
}
.uidb-slide-content { position: relative; z-index: 2; }
.uidb-slide-title {
  font-size: 1.9rem;
  font-weight: 800;
  margin: 0 0 0.3rem;
  color: #fff;
}
.uidb-slide-sub {
  font-size: 1.25rem;
  color: var(--uidb-light);
  margin: 0 0 0.8rem;
}
.uidb-hero-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--uidb-red);
  color: #fff;
  padding: 0.7rem 1.4rem;
  border-radius: 999px;
  font-size: 1.3rem;
  font-weight: 700;
}
.uidb-hero-cta:hover { text-decoration: none; filter: brightness(1.1); }

/* ---------- Section ---------- */
.uidb-section {
  margin: 2rem 0;
}
.uidb-section-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
}
.uidb-section-title {
  font-size: 1.7rem;
  font-weight: 800;
  color: #fff;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}
.uidb-section-title i { color: var(--uidb-gold); font-size: 2rem; }
.uidb-section-more {
  font-size: 1.2rem;
  color: var(--uidb-gold);
  font-weight: 700;
}

/* ---------- Filter tabs ---------- */
.uidb-filter-bar {
  display: flex;
  gap: 0.6rem;
  overflow-x: auto;
  padding: 0.4rem 0 1rem;
  -webkit-overflow-scrolling: touch;
}
.uidb-filter-bar::-webkit-scrollbar { display: none; }
.uidb-filter-tab {
  flex: 0 0 auto;
  padding: 0.6rem 1.2rem;
  border-radius: 999px;
  background: var(--uidb-card);
  color: var(--uidb-light);
  font-size: 1.2rem;
  font-weight: 700;
  border: 1px solid var(--uidb-border);
  cursor: pointer;
  white-space: nowrap;
}
.uidb-filter-tab.uidb-filter-active {
  background: linear-gradient(135deg, #f5c451, #e69b1c);
  color: #1a1a2e;
  border-color: transparent;
}

/* ---------- Game grid ---------- */
.uidb-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.8rem;
}
.uidb-card {
  background: var(--uidb-card);
  border: 1px solid var(--uidb-border);
  border-radius: 12px;
  overflow: hidden;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
  cursor: pointer;
}
.uidb-card:hover { transform: translateY(-2px); box-shadow: var(--uidb-shadow); }
.uidb-card-img {
  position: relative;
  aspect-ratio: 1 / 1;
  background: #000;
}
.uidb-card-img img { width: 100%; height: 100%; object-fit: cover; }
.uidb-card-hot {
  position: absolute;
  top: 4px;
  left: 4px;
  background: var(--uidb-red);
  color: #fff;
  font-size: 0.95rem;
  font-weight: 800;
  padding: 0.15rem 0.5rem;
  border-radius: 6px;
}
.uidb-card-name {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--uidb-text);
  padding: 0.5rem 0.4rem;
  text-align: center;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ---------- Promo banner row ---------- */
.uidb-promo-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.8rem;
  margin: 1.4rem 0;
}
.uidb-promo-box {
  border-radius: 12px;
  padding: 1.2rem;
  text-align: center;
  color: #fff;
  position: relative;
  overflow: hidden;
}
.uidb-promo-box.gold { background: linear-gradient(135deg, #b8860b, #f5c451); color: #1a1a2e; }
.uidb-promo-box.red { background: linear-gradient(135deg, #b00020, #e63946); }
.uidb-promo-box h3 { margin: 0 0 0.4rem; font-size: 1.45rem; font-weight: 800; }
.uidb-promo-box p { margin: 0; font-size: 1.15rem; opacity: 0.9; }

/* ---------- SEO content ---------- */
.uidb-seo {
  background: var(--uidb-card);
  border: 1px solid var(--uidb-border);
  border-radius: var(--uidb-radius);
  padding: 1.6rem 1.4rem;
  margin: 1.6rem 0;
  font-size: 1.35rem;
  line-height: 1.7rem;
  color: var(--uidb-light);
}
.uidb-seo h2 {
  font-size: 1.7rem;
  color: #fff;
  margin: 1.4rem 0 0.6rem;
}
.uidb-seo h2:first-child { margin-top: 0; }
.uidb-seo h3 {
  font-size: 1.45rem;
  color: var(--uidb-gold);
  margin: 1.2rem 0 0.4rem;
}
.uidb-seo p { margin: 0.5rem 0; }
.uidb-seo ul { padding-left: 1.6rem; margin: 0.6rem 0; }
.uidb-seo li { margin: 0.3rem 0; }
.uidb-seo a { font-weight: 700; }
.uidb-seo strong { color: var(--uidb-gold); font-weight: 700; }

/* Inline promo link styling */
.uidb-promo-link {
  color: var(--uidb-gold);
  font-weight: 800;
  text-decoration: underline;
}

/* ---------- FAQ ---------- */
.uidb-faq-item {
  border-bottom: 1px solid var(--uidb-border);
  padding: 1rem 0;
}
.uidb-faq-item h3 {
  font-size: 1.35rem;
  color: var(--uidb-gold);
  margin: 0 0 0.4rem;
}
.uidb-faq-item p { margin: 0; font-size: 1.25rem; color: var(--uidb-light); }

/* ---------- Footer ---------- */
.uidb-footer {
  background: #0a0a18;
  border-top: 1px solid var(--uidb-border);
  padding: 2.2rem 1.4rem;
  margin-top: 2rem;
}
.uidb-footer h4 {
  font-size: 1.3rem;
  color: var(--uidb-gold);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin: 1.4rem 0 0.6rem;
}
.uidb-footer a {
  display: block;
  color: var(--uidb-light);
  font-size: 1.2rem;
  padding: 0.35rem 0;
}
.uidb-footer a:hover { color: var(--uidb-gold); }
.uidb-footer p {
  color: var(--uidb-muted);
  font-size: 1.15rem;
  margin: 0.4rem 0;
}
.uidb-footer-bottom {
  margin-top: 1.6rem;
  padding-top: 1rem;
  border-top: 1px solid var(--uidb-border);
  text-align: center;
  font-size: 1.1rem;
  color: var(--uidb-muted);
}

/* ---------- Mobile bottom navigation ---------- */
.uidb-bottom-nav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  max-width: 430px;
  margin: 0 auto;
  height: var(--uidb-bottom-h);
  background: linear-gradient(180deg, #1A1A2E 0%, #0f0f1e 100%);
  border-top: 1px solid var(--uidb-border);
  display: flex;
  justify-content: space-around;
  align-items: stretch;
  z-index: 1000;
  box-shadow: 0 -4px 18px rgba(0,0,0,0.45);
}
.uidb-bottom-btn {
  flex: 1;
  min-width: 60px;
  min-height: 60px;
  background: transparent;
  border: none;
  color: var(--uidb-light);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.2rem;
  cursor: pointer;
  text-decoration: none;
  font-size: 1rem;
  font-weight: 600;
  transition: color 0.15s ease, transform 0.15s ease;
}
.uidb-bottom-btn i, .uidb-bottom-btn .material-icons-outlined,
.uidb-bottom-btn .ion-icon { font-size: 22px; }
.uidb-bottom-btn:hover { text-decoration: none; color: var(--uidb-gold); }
.uidb-bottom-btn.uidb-bottom-active { color: var(--uidb-gold); }
.uidb-bottom-btn.uidb-bottom-promo {
  color: #fff;
  position: relative;
}
.uidb-bottom-btn.uidb-bottom-promo i {
  background: linear-gradient(135deg, #f5c451, #e69b1c);
  color: #1a1a2e;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  box-shadow: 0 4px 10px rgba(245,196,81,0.4);
}

/* ---------- Desktop ---------- */
@media (min-width: 769px) {
  .uidb-bottom-nav { display: none; }
  main.uidb-main { padding-bottom: 40px; }
  .uidb-wrapper { max-width: 900px; }
  .uidb-header { max-width: 900px; }
  .uidb-mobile-menu { max-width: 900px; }
  .uidb-grid { grid-template-columns: repeat(6, 1fr); }
}

@media (max-width: 768px) {
  .uidb-grid { grid-template-columns: repeat(3, 1fr); }
}