:root {
  color-scheme: light dark;
  --bg: #0b1020;
  --panel: #111831;
  --panel-soft: #17203f;
  --text: #e6ecff;
  --muted: #b8c2e3;
  --line: #2a3768;
  --brand: #6ea8fe;
  --brand-strong: #8ec5ff;
  --success: #8ddf97;
  --max: 1120px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Inter, Segoe UI, Arial, sans-serif;
  background: linear-gradient(180deg, #09101e 0%, #101936 100%);
  color: var(--text);
  line-height: 1.6;
}

a {
  color: var(--brand-strong);
}

a:hover {
  color: #cbe2ff;
}

header,
main,
footer {
  width: min(calc(100% - 2rem), var(--max));
  margin: 0 auto;
}

.site-header {
  padding: 1rem 0 0;
}

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

.brand {
  font-size: 1.25rem;
  font-weight: 700;
  text-decoration: none;
  color: var(--text);
}

.nav-links {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.nav-links a {
  text-decoration: none;
  color: var(--muted);
}

.hero,
.card,
.notice,
.legal {
  background: rgba(17, 24, 49, 0.92);
  border: 1px solid var(--line);
  border-radius: 18px;
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.22);
}

.hero {
  padding: 3rem;
  margin: 2rem 0;
}

.hero h1,
.page-title {
  margin-top: 0;
  line-height: 1.15;
}

.hero p {
  max-width: 70ch;
  color: var(--muted);
}

.actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-top: 1.5rem;
}

.button {
  display: inline-block;
  padding: 0.85rem 1.2rem;
  border-radius: 999px;
  text-decoration: none;
  border: 1px solid var(--brand);
  color: var(--text);
  background: linear-gradient(180deg, #2452c5 0%, #1a3d92 100%);
}

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

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1rem;
  margin: 2rem 0;
}

.card,
.notice,
.legal {
  padding: 1.25rem;
}

.card h2,
.card h3,
.notice h2,
.legal h2 {
  margin-top: 0;
}

.list {
  padding-left: 1.15rem;
}

.badge {
  display: inline-block;
  margin-bottom: 0.75rem;
  padding: 0.35rem 0.7rem;
  border-radius: 999px;
  background: rgba(110, 168, 254, 0.12);
  color: var(--brand-strong);
  border: 1px solid rgba(110, 168, 254, 0.35);
}

.notice {
  margin: 2rem 0;
}

.footer {
  padding: 2rem 0 3rem;
  color: var(--muted);
}

.meta {
  color: var(--muted);
  font-size: 0.95rem;
}

code {
  padding: 0.15rem 0.35rem;
  border-radius: 0.35rem;
  background: rgba(255, 255, 255, 0.08);
}

@media (max-width: 720px) {
  .hero {
    padding: 1.5rem;
  }

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