:root {
  --color-bg: #0B2530;
  --color-bg-alt: #0E2E3B;
  --color-card: #123746;
  --color-accent: #EAD7A7;
  --color-accent-hover: #F5E7C4;
  --color-secondary: #5CC8D6;
  --color-text: #EDF4F5;
  --color-muted: #8FADB4;
  --color-border: #1B4453;
  --shadow-deep: 0 18px 44px rgba(0, 0, 0, 0.35);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 92px;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

.container {
  width: min(1160px, 100% - 40px);
  margin-inline: auto;
}

h1,
h2,
h3 {
  line-height: 1.15;
  font-weight: 700;
  margin: 0;
}

p {
  margin: 0;
}

a {
  color: var(--color-secondary);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 22px;
  border-radius: 10px;
  border: 1px solid transparent;
  font-size: 15px;
  font-weight: 600;
  font-family: inherit;
  text-decoration: none;
  cursor: pointer;
  transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease, transform 0.2s ease;
}

.btn:active {
  transform: translateY(1px);
}

.btn-accent {
  background: var(--color-accent);
  color: #24333B;
}

.btn-accent:hover {
  background: var(--color-accent-hover);
}

.btn-ghost {
  border-color: var(--color-border);
  color: var(--color-text);
}

.btn-ghost:hover {
  border-color: var(--color-secondary);
  color: var(--color-secondary);
}

.btn-outline {
  border-color: rgba(237, 244, 245, 0.45);
  color: var(--color-text);
}

.btn-outline:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.btn-lg {
  padding: 14px 30px;
  font-size: 16px;
  border-radius: 12px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(11, 37, 48, 0.94);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 30px;
  min-height: 72px;
}

.brand {
  display: inline-flex;
  align-items: center;
  flex-shrink: 0;
}

.brand img {
  border-radius: 10px;
  background: var(--color-card);
}

.main-nav {
  display: flex;
  gap: 24px;
  margin-right: auto;
}

.main-nav a {
  color: var(--color-muted);
  text-decoration: none;
  font-size: 15px;
  transition: color 0.2s ease;
}

.main-nav a:hover {
  color: var(--color-accent);
}

.header-actions {
  display: flex;
  gap: 10px;
  flex-shrink: 0;
}

.hero {
  position: relative;
  display: flex;
  align-items: center;
  min-height: calc(100vh - 72px);
  padding: 96px 0 120px;
  background:
    linear-gradient(115deg, rgba(11, 37, 48, 0.92) 0%, rgba(11, 37, 48, 0.72) 48%, rgba(14, 46, 59, 0.42) 100%),
    url("../img/banners/hero-main.webp") center / cover no-repeat,
    linear-gradient(150deg, #123746, #0B2530);
}

.hero-inner {
  max-width: 660px;
}

.hero-badge {
  display: inline-block;
  padding: 8px 18px;
  border: 1px solid rgba(234, 215, 167, 0.45);
  border-radius: 999px;
  background: rgba(18, 55, 70, 0.65);
  color: var(--color-accent);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.2px;
}

.hero h1 {
  margin: 22px 0 16px;
  font-size: clamp(42px, 6.4vw, 66px);
  letter-spacing: -0.5px;
}

.hero-sub {
  max-width: 560px;
  font-size: 18px;
  color: #C7DADE;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin: 32px 0 36px;
}

.hero-perks {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 28px;
  list-style: none;
  padding: 0;
  margin: 0;
}

.hero-perks li {
  display: flex;
  align-items: center;
  gap: 9px;
  color: var(--color-muted);
  font-size: 14px;
}

.hero-perks svg {
  color: var(--color-secondary);
  flex-shrink: 0;
}

.section {
  padding: 86px 0;
}

.section-alt {
  background: var(--color-bg-alt);
}

h2 {
  font-size: clamp(28px, 3.6vw, 40px);
  letter-spacing: -0.3px;
}

.section-sub {
  margin-top: 12px;
  color: var(--color-muted);
  max-width: 620px;
}

.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 18px;
  margin-bottom: 28px;
}

.slot-nav {
  display: flex;
  gap: 10px;
}

.slot-btn {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  border: 1px solid var(--color-border);
  background: var(--color-card);
  color: var(--color-text);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: border-color 0.2s ease, color 0.2s ease;
}

.slot-btn:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.slot-track {
  display: flex;
  gap: 18px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  padding: 6px 2px 20px;
  scrollbar-width: thin;
  scrollbar-color: var(--color-border) transparent;
}

.slot-card {
  flex: 0 0 258px;
  scroll-snap-align: start;
  display: flex;
  flex-direction: column;
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  overflow: hidden;
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.slot-card:hover {
  border-color: rgba(92, 200, 214, 0.6);
  transform: translateY(-3px);
}

.slot-card img {
  width: 100%;
}

.slot-info {
  padding: 14px 16px 4px;
}

.slot-name {
  margin-bottom: 4px;
  font-weight: 600;
  font-size: 15.5px;
}

.slot-provider {
  color: var(--color-muted);
  font-size: 13px;
}

.btn-play {
  margin: 12px 16px 16px;
  padding: 10px 0;
  border-radius: 10px;
  background: var(--color-secondary);
  color: #082028;
}

.btn-play:hover {
  background: var(--color-accent);
  color: #24333B;
}

.section-tournament {
  padding: 92px 0;
  background:
    linear-gradient(90deg, rgba(11, 37, 48, 0.95) 0%, rgba(11, 37, 48, 0.78) 55%, rgba(11, 37, 48, 0.45) 100%),
    url("../img/banners/tournament-bg.webp") right center / cover no-repeat,
    var(--color-bg-alt);
}

.tournament-inner {
  max-width: 640px;
}

.tournament-prize {
  margin-top: 18px;
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--color-secondary);
}

.tournament-fund {
  margin: 6px 0 16px;
  font-size: clamp(34px, 4vw, 48px);
  font-weight: 700;
  color: var(--color-accent);
  letter-spacing: -0.5px;
}

.tournament-text {
  max-width: 560px;
  color: #C7DADE;
}

.countdown {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin: 30px 0 32px;
}

.count-box {
  min-width: 96px;
  padding: 16px 12px 14px;
  text-align: center;
  background: rgba(18, 55, 70, 0.8);
  border: 1px solid var(--color-border);
  border-radius: 14px;
}

.count-num {
  display: block;
  font-size: 34px;
  font-weight: 700;
  color: var(--color-accent);
  font-variant-numeric: tabular-nums;
}

.count-label {
  display: block;
  margin-top: 2px;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 1.6px;
  color: var(--color-muted);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  margin-top: 30px;
}

.feature-card {
  padding: 24px 20px;
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: 16px;
}

.feature-icon {
  width: 52px;
  height: 52px;
  margin-bottom: 16px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(92, 200, 214, 0.12);
  color: var(--color-secondary);
}

.feature-title {
  margin-bottom: 8px;
  font-size: 17px;
  font-weight: 600;
}

.feature-text {
  color: var(--color-muted);
  font-size: 14.5px;
}

.vip-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin-top: 32px;
}

.vip-card {
  padding: 26px 24px 18px;
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: 18px;
}

.vip-card-hot {
  border-color: rgba(234, 215, 167, 0.55);
  background: linear-gradient(180deg, #16404F, #123746);
  box-shadow: var(--shadow-deep);
}

.vip-tier {
  margin-bottom: 4px;
  font-size: 21px;
  font-weight: 700;
  color: var(--color-accent);
}

.vip-note {
  margin-bottom: 14px;
  font-size: 12.5px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1.4px;
  color: var(--color-secondary);
}

.vip-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.vip-list li {
  position: relative;
  padding: 10px 0 10px 27px;
  border-top: 1px solid var(--color-border);
  color: #C7DADE;
  font-size: 14.5px;
}

.vip-list svg {
  position: absolute;
  left: 0;
  top: 14px;
  color: var(--color-secondary);
}

.about-text h2 {
  margin-bottom: 18px;
}

.about-text h3 {
  margin: 36px 0 10px;
  font-size: 21px;
}

.about-text p {
  color: #C7DADE;
}

.about-text > p:first-of-type {
  max-width: 860px;
}

.about-text ul {
  margin: 14px 0 18px;
  padding-left: 22px;
}

.about-text li {
  margin: 6px 0;
  color: #C7DADE;
}

.faq-list {
  display: grid;
  gap: 12px;
  margin-top: 30px;
}

.faq-item {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: 14px;
  padding: 0 22px;
}

.faq-item summary {
  position: relative;
  padding: 19px 44px 19px 0;
  font-weight: 600;
  font-size: 16.5px;
  cursor: pointer;
  list-style: none;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  content: "+";
  position: absolute;
  right: 4px;
  top: 50%;
  font-size: 26px;
  font-weight: 400;
  line-height: 1;
  color: var(--color-secondary);
  transform: translateY(-50%);
  transition: transform 0.2s ease;
}

.faq-item[open] summary::after {
  transform: translateY(-50%) rotate(45deg);
}

.faq-item p {
  max-width: 780px;
  margin-bottom: 20px;
  color: #C7DADE;
}

.site-footer {
  padding: 46px 0 36px;
  background: #081B24;
  border-top: 1px solid var(--color-border);
}

.footer-inner {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 26px 34px;
}

.footer-brand img {
  border-radius: 9px;
  background: var(--color-card);
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 20px;
  margin-right: auto;
}

.footer-nav a {
  color: var(--color-muted);
  text-decoration: none;
  font-size: 14px;
}

.footer-nav a:hover {
  color: var(--color-accent);
}

.footer-meta {
  display: flex;
  flex-direction: column;
  gap: 7px;
  font-size: 13.5px;
  color: var(--color-muted);
}

.footer-mail {
  color: var(--color-secondary);
}

@media (max-width: 980px) {
  .feature-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .vip-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .vip-grid .vip-card:last-child {
    grid-column: 1 / -1;
  }

  .main-nav {
    display: none;
  }

  .header-inner {
    gap: 16px;
  }

  .header-actions {
    margin-left: auto;
  }

  .hero {
    min-height: auto;
    padding: 84px 0 96px;
  }
}

@media (max-width: 640px) {
  .section {
    padding: 64px 0;
  }

  .hero {
    padding: 64px 0 72px;
  }

  .hero-cta .btn {
    width: 100%;
  }

  .feature-grid {
    grid-template-columns: 1fr;
  }

  .vip-grid {
    grid-template-columns: 1fr;
  }

  .vip-grid .vip-card:last-child {
    grid-column: auto;
  }

  .slot-card {
    flex-basis: 224px;
  }

  .count-box {
    min-width: 74px;
    flex: 1;
  }

  .count-num {
    font-size: 27px;
  }

  .header-actions .btn-ghost {
    display: none;
  }

  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
  }
}