:root {
  color-scheme: dark;
  --bg: #07101d;
  --bg-soft: #0b1728;
  --panel: #101d31;
  --line: rgba(255, 255, 255, 0.12);
  --text: #f8fbff;
  --muted: #b7c2d4;
  --blue: #1689ff;
  --blue-dark: #0768d8;
  --gold: #f3c86a;
  --max: 1060px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Helvetica Neue", "Yu Gothic", YuGothic, sans-serif;
  line-height: 1.8;
}

a {
  color: inherit;
}

.shell {
  width: min(calc(100% - 40px), var(--max));
  margin-inline: auto;
}

.narrow {
  max-width: 820px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid var(--line);
  background: rgba(7, 16, 29, 0.94);
  backdrop-filter: blur(18px);
}

.nav,
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 68px;
  gap: 20px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  font-size: 18px;
  font-weight: 800;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border-radius: 50%;
  background: var(--gold);
  color: #172033;
}

nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 16px;
}

nav a,
footer a {
  color: var(--muted);
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
}

nav a:hover,
footer a:hover,
nav a[aria-current="page"] {
  color: var(--text);
}

.hero {
  min-height: 520px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-block: 76px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--gold);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.14em;
}

h1,
h2,
h3 {
  margin-top: 0;
  line-height: 1.28;
}

h1 {
  margin-bottom: 20px;
  font-size: clamp(42px, 8vw, 76px);
}

h2 {
  margin-bottom: 24px;
  font-size: clamp(28px, 5vw, 42px);
}

h3 {
  margin-bottom: 8px;
  font-size: 20px;
}

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

.hero-copy {
  max-width: 640px;
  margin: 0;
  font-size: 18px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}

.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  padding: 0 20px;
  border: 1px solid var(--line);
  border-radius: 6px;
  font-weight: 800;
  text-decoration: none;
}

.primary {
  border-color: var(--blue);
  background: var(--blue);
  color: white;
}

.primary:hover {
  background: var(--blue-dark);
}

.secondary:hover {
  border-color: var(--gold);
}

.section {
  padding-block: 84px;
}

.band {
  border-block: 1px solid var(--line);
  background: var(--bg-soft);
}

.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.steps article {
  min-height: 220px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}

.step-number {
  display: block;
  margin-bottom: 34px;
  color: var(--gold);
  font-size: 13px;
  font-weight: 800;
}

.feature-layout {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 36px;
}

.compact-list {
  margin: 0;
  padding: 22px 22px 22px 44px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  color: var(--muted);
}

details {
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
}

summary {
  color: var(--text);
  cursor: pointer;
  font-weight: 800;
}

details p {
  margin-bottom: 0;
}

.contact {
  text-align: center;
}

.contact-link,
.text-link {
  color: #66b8ff;
  font-weight: 800;
  text-decoration: underline;
  text-underline-offset: 4px;
}

.policy {
  max-width: 820px;
  padding-block: 76px 96px;
}

.policy h1 {
  font-size: clamp(38px, 7vw, 58px);
}

.policy h2 {
  margin-top: 56px;
  margin-bottom: 10px;
  font-size: 26px;
}

.policy h3 {
  margin-top: 28px;
  margin-bottom: 6px;
  font-size: 18px;
}

.updated {
  margin-bottom: 40px;
  font-size: 14px;
}

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

.footer-inner {
  min-height: 76px;
  color: var(--muted);
  font-size: 13px;
}

@media (max-width: 720px) {
  .nav {
    align-items: flex-start;
    flex-direction: column;
    padding-block: 14px;
  }

  .hero {
    min-height: 460px;
  }

  .steps,
  .feature-layout {
    grid-template-columns: 1fr;
  }

  .section {
    padding-block: 64px;
  }
}