:root {
  color-scheme: dark;
  --bg: #0c0f14;
  --panel: #131a22;
  --panel-2: #10161d;
  --text: #e7edf5;
  --muted: #a7b4c5;
  --accent: #ffbf3f;
  --accent-2: #2dc4ff;
  --border: #1e2a36;
  --success: #32d583;
}

* {
  box-sizing: border-box;
}

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

a {
  color: var(--accent-2);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

header {
  background: #0b1118;
  border-bottom: 1px solid var(--border);
}

.nav {
  max-width: 1100px;
  margin: 0 auto;
  padding: 18px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  font-weight: 700;
  letter-spacing: 0.5px;
  font-size: 20px;
  color: var(--text);
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 14px;
}

.nav-links a {
  color: var(--muted);
}

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

.hero {
  max-width: 1100px;
  margin: 0 auto;
  padding: 60px 24px 40px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 32px;
  align-items: center;
}

.hero-card {
  background: var(--panel);
  border: 1px solid var(--border);
  padding: 28px;
  border-radius: 16px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.35);
}

.hero h1 {
  margin: 0 0 12px;
  font-size: 34px;
}

.hero p {
  margin: 0 0 16px;
  color: var(--muted);
}

.button-group {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.button {
  padding: 12px 18px;
  border-radius: 10px;
  font-weight: 600;
  border: 1px solid transparent;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.button.primary {
  background: var(--accent);
  color: #111;
}

.button.secondary {
  background: transparent;
  border-color: var(--accent-2);
  color: var(--accent-2);
}

.section {
  max-width: 1100px;
  margin: 0 auto;
  padding: 40px 24px;
}

.section h2 {
  margin: 0 0 12px;
  font-size: 26px;
}

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

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 18px;
}

.card {
  background: var(--panel-2);
  border: 1px solid var(--border);
  padding: 20px;
  border-radius: 14px;
}

.card h3 {
  margin-top: 0;
}

.badge {
  display: inline-block;
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(45, 196, 255, 0.15);
  color: var(--accent-2);
  font-size: 12px;
  font-weight: 600;
}

.inline-list {
  padding-left: 18px;
  margin: 12px 0 0;
}

footer {
  border-top: 1px solid var(--border);
  background: #0b1118;
  padding: 32px 24px;
  color: var(--muted);
}

.footer-grid {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
}

.footer-grid a {
  color: var(--muted);
  display: block;
  margin-bottom: 8px;
}

.notice {
  background: rgba(50, 213, 131, 0.12);
  border: 1px solid rgba(50, 213, 131, 0.35);
  padding: 12px 16px;
  border-radius: 12px;
  color: #d8ffe9;
  font-size: 14px;
}

.table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 12px;
}

.table th,
.table td {
  border: 1px solid var(--border);
  padding: 12px;
  text-align: left;
  font-size: 14px;
}

.table th {
  background: #0e1721;
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}

.tag {
  background: rgba(255, 191, 63, 0.12);
  border: 1px solid rgba(255, 191, 63, 0.35);
  color: #ffd07a;
  padding: 6px 10px;
  border-radius: 999px;
  font-size: 12px;
}

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

.hero img,
.section img {
  width: 100%;
  border-radius: 16px;
  border: 1px solid var(--border);
}

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

@media (max-width: 720px) {
  .nav {
    flex-direction: column;
    align-items: flex-start;
  }
}