:root {
  --bg: #0b1220;
  --panel: #121b2d;
  --panel-2: #17243b;
  --text: #e9f0ff;
  --muted: #9bb1d3;
  --accent: #5fc7ff;
  --accent-2: #44e0b2;
  --line: #263754;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: radial-gradient(1400px 600px at 50% -200px, #22365a 0%, var(--bg) 55%);
  color: var(--text);
  line-height: 1.55;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.container { width: min(1100px, 92%); margin: 0 auto; }

.site-header {
  border-bottom: 1px solid var(--line);
  background: rgba(11, 18, 32, 0.85);
  backdrop-filter: blur(8px);
  position: sticky;
  top: 0;
  z-index: 20;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.9rem 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-weight: 700;
  color: #fff;
}

.brand-logo {
  width: 28px;
  height: 28px;
  border-radius: 8px;
  display: block;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  flex-wrap: wrap;
}

.nav-links a {
  color: var(--text);
  opacity: 0.92;
  font-weight: 600;
}

.nav-links a.active { color: var(--accent-2); }

.hero { padding: 2rem 0 1.2rem; }
.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 1rem;
  align-items: start;
}

.section { padding: 0.5rem 0 1.3rem; }

.card {
  border: 1px solid var(--line);
  background: linear-gradient(180deg, var(--panel), var(--panel-2));
  border-radius: 14px;
  padding: 1rem;
}

.kicker {
  display: inline-block;
  margin-bottom: 0.45rem;
  padding: 0.2rem 0.55rem;
  border: 1px solid rgba(68, 224, 178, 0.45);
  border-radius: 999px;
  color: #c7f7e9;
  font-size: 0.8rem;
  font-weight: 700;
}

.btn-row {
  display: flex;
  gap: 0.7rem;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  padding: 0.5rem 0.9rem;
  border-radius: 10px;
  border: 1px solid var(--line);
  font-weight: 700;
  color: #fff;
  text-decoration: none;
}

.btn-primary {
  background: linear-gradient(135deg, #30a9ff, #3be0b6);
  border-color: transparent;
  color: #081423;
}

.btn-secondary { background: #1c2a42; }

.btn-icon { gap: 0.45rem; }
.btn-icon svg { flex: 0 0 auto; }

.muted { color: var(--muted); }

.play-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 0.4rem;
}

.play-title,
.play-title-large {
  margin: 0;
  font-weight: 700;
  color: #dbe8ff;
}

.play-title-large { font-size: 1.2rem; }

.play-shell {
  border: 1px solid var(--line);
  border-radius: 14px;
  overflow: hidden;
  background: #0c1424;
}

.game-iframe {
  width: 100%;
  min-height: 72vh;
  border: 0;
  display: block;
  background: #0c1424;
}

.notice {
  margin-top: 0.8rem;
  padding: 0.75rem;
  border: 1px dashed #38527d;
  border-radius: 10px;
  color: var(--muted);
  font-size: 0.95rem;
}

.chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-top: 0.85rem;
}

.chip {
  display: inline-block;
  padding: 0.16rem 0.6rem;
  border-radius: 999px;
  border: 1px solid #33507f;
  background: rgba(95, 199, 255, 0.08);
  color: #d9ebff;
  font-size: 0.85rem;
}

.news-list {
  margin: 0 0 0.9rem;
  padding-left: 1.15rem;
}

.news-list li { margin-bottom: 0.4rem; }

.settings-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-bottom: 0.6rem;
}

.settings-head h2 {
  margin: 0;
}

.table-wrap {
  overflow-x: auto;
  border: 1px solid #2f456d;
  border-radius: 10px;
  background: rgba(16, 30, 52, 0.56);
}

.settings-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 560px;
}

.settings-table th,
.settings-table td {
  padding: 0.62rem 0.75rem;
  text-align: left;
  border-bottom: 1px solid #2b4168;
}

.settings-table th {
  font-weight: 800;
  color: #dcedff;
  background: rgba(62, 89, 138, 0.22);
}

.settings-table td {
  color: #d4e5ff;
}

.settings-table tbody tr:last-child td {
  border-bottom: 0;
}

.faq-stack {
  display: grid;
  gap: 0.65rem;
}

.faq-stack details {
  border: 1px solid #2f456d;
  border-radius: 10px;
  background: rgba(19, 35, 60, 0.45);
  padding: 0.6rem 0.75rem;
}

.faq-stack summary {
  cursor: pointer;
  font-weight: 700;
}

.faq-stack p { margin: 0.45rem 0 0; color: var(--muted); }

.cards-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.guide-card h2 {
  margin-top: 0;
  font-size: 1.15rem;
}

.text-link { font-weight: 700; }

.stack {
  display: grid;
  gap: 1rem;
}

.prose h1,
.prose h2,
.prose h3 {
  margin-top: 0;
}

.prose ul { margin-top: 0.4rem; }

.social-row {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-wrap: wrap;
}

.social-link {
  width: 38px;
  height: 38px;
  border: 1px solid var(--line);
  border-radius: 10px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  background: #1a2740;
}

.social-link:hover {
  background: #213555;
  text-decoration: none;
}

.footer {
  margin-top: 1rem;
  border-top: 1px solid var(--line);
}

.footer-inner {
  padding: 1.2rem 0 1.8rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

@media (max-width: 1024px) {
  .cards-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; }
  .nav { flex-direction: column; align-items: flex-start; }
  .game-iframe { min-height: 63vh; }
}

@media (max-width: 640px) {
  .cards-grid { grid-template-columns: 1fr; }
  .btn { width: 100%; }
  .btn-row .btn { justify-content: center; }
  .play-toolbar { align-items: flex-start; flex-direction: column; }
}