:root {
  --bg: #0d1730;
  --bg-alt: #132242;
  --panel: rgba(18, 33, 66, 0.9);
  --panel-strong: rgba(22, 40, 80, 0.96);
  --border: rgba(170, 212, 255, 0.18);
  --text: #f6f8ff;
  --muted: #b8cae6;
  --link: #a7d5ff;
  --link-strong: #d6edff;
  --accent: #77c2ff;
  --shadow: 0 24px 60px rgba(4, 10, 24, 0.34);
}

* {
  box-sizing: border-box;
}

html {
  color-scheme: dark;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.6;
  color: var(--text);
  background:
    radial-gradient(circle at top, rgba(119, 194, 255, 0.16), transparent 34%),
    linear-gradient(180deg, #13264d 0%, var(--bg) 48%, #091120 100%);
}

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

a:hover,
 a:focus-visible {
  color: var(--link-strong);
}

.site-shell {
  width: min(1080px, calc(100% - 32px));
  margin: 0 auto;
  padding: 32px 0 56px;
}

.page-shell {
  width: min(860px, calc(100% - 32px));
  margin: 0 auto;
  padding: 28px 0 56px;
}

.hero,
.card,
.legal,
.notice {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 22px;
  box-shadow: var(--shadow);
}

.hero {
  padding: 40px;
}

.brand-mark {
  display: inline-block;
  margin-bottom: 14px;
  padding: 6px 12px;
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--link-strong);
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  margin-top: 0;
  line-height: 1.2;
}

h1 {
  margin-bottom: 12px;
  font-size: clamp(2.4rem, 5vw, 4rem);
}

h2 {
  margin-bottom: 10px;
  font-size: clamp(1.45rem, 3vw, 2rem);
}

p {
  margin: 0 0 1rem;
}

.lead {
  max-width: 720px;
  color: var(--muted);
  font-size: 1.08rem;
}

.grid {
  display: grid;
  gap: 22px;
  margin-top: 26px;
}

@media (min-width: 800px) {
  .grid.two-up {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.card {
  padding: 26px;
}

.kicker {
  margin-bottom: 12px;
  color: var(--accent);
  font-size: 0.86rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.link-list {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  padding: 0;
  margin: 18px 0 0;
  list-style: none;
}

.link-list a,
.button-link {
  display: inline-block;
  padding: 10px 14px;
  border: 1px solid rgba(167, 213, 255, 0.28);
  border-radius: 12px;
  background: rgba(167, 213, 255, 0.08);
  color: var(--link-strong);
  text-decoration: none;
}

.link-list a:hover,
.link-list a:focus-visible,
.button-link:hover,
.button-link:focus-visible {
  background: rgba(167, 213, 255, 0.16);
}

.back-link {
  display: inline-flex;
  margin-bottom: 18px;
  color: var(--link);
  text-decoration: none;
}

.legal,
.notice {
  padding: 28px;
}

.legal section + section {
  margin-top: 28px;
  padding-top: 28px;
  border-top: 1px solid rgba(170, 212, 255, 0.12);
}

.legal ul {
  margin: 12px 0 0 20px;
}

.legal li + li {
  margin-top: 8px;
}

.meta {
  margin-bottom: 22px;
  color: var(--muted);
}

.footer-note {
  margin-top: 18px;
  color: var(--muted);
  font-size: 0.95rem;
}