:root {
  color-scheme: dark;
  --bg: #050505;
  --panel: #111111;
  --text: #f5f5f7;
  --muted: #a1a1a6;
  --line: #2a2a2e;
  --accent: #a970ff;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Helvetica Neue",
    "Hiragino Sans", "Yu Gothic", sans-serif;
  line-height: 1.75;
}

a {
  color: #d5b8ff;
}

.site-header {
  border-bottom: 1px solid var(--line);
  background: rgba(5, 5, 5, 0.94);
}

.nav {
  max-width: 820px;
  margin: 0 auto;
  padding: 18px 22px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.brand {
  color: var(--text);
  text-decoration: none;
  font-size: 20px;
  font-weight: 800;
  letter-spacing: 0.02em;
}

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

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

.nav-links a:hover,
.site-footer a:hover {
  color: var(--text);
}

main {
  max-width: 820px;
  margin: 0 auto;
  padding: 64px 22px 96px;
}

.hero {
  min-height: 58vh;
  display: grid;
  align-content: center;
}

.eyebrow {
  color: var(--accent);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

h1 {
  margin: 8px 0 18px;
  font-size: clamp(44px, 10vw, 78px);
  line-height: 1.04;
  letter-spacing: -0.04em;
}

h2 {
  margin: 0 0 18px;
  font-size: clamp(26px, 5vw, 36px);
  line-height: 1.3;
}

h3 {
  margin-top: 32px;
  margin-bottom: 8px;
  font-size: 19px;
}

p,
li {
  color: #dedee2;
}

.lead {
  max-width: 620px;
  margin: 0;
  color: var(--muted);
  font-size: 18px;
}

.card {
  margin-top: 36px;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--panel);
}

.button {
  display: inline-block;
  margin-top: 26px;
  padding: 12px 18px;
  border-radius: 10px;
  background: var(--text);
  color: #000;
  font-weight: 700;
  text-decoration: none;
}

.meta {
  color: var(--muted);
  font-size: 14px;
}

.notice {
  margin: 26px 0;
  padding: 16px 18px;
  border-left: 3px solid var(--accent);
  background: var(--panel);
  color: var(--muted);
}

ul {
  padding-left: 1.25em;
}

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

.footer-inner {
  max-width: 820px;
  margin: 0 auto;
  padding: 28px 22px 46px;
  display: flex;
  justify-content: space-between;
  gap: 18px;
  flex-wrap: wrap;
  color: var(--muted);
  font-size: 13px;
}

@media (max-width: 560px) {
  .nav {
    align-items: flex-start;
    flex-direction: column;
  }

  main {
    padding-top: 44px;
  }

  .card {
    padding: 22px;
  }
}