:root {
  color-scheme: dark;
  --background: #07111f;
  --surface: #0d1b2d;
  --surface-soft: #11243a;
  --text: #f5f8fc;
  --muted: #a9b8ca;
  --accent: #59d6c4;
  --accent-strong: #2db7a4;
  --border: rgba(255, 255, 255, 0.1);
  --max-width: 1040px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background:
    radial-gradient(circle at 12% 0%, rgba(45, 183, 164, 0.16), transparent 32rem),
    var(--background);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.65;
}

a { color: var(--accent); }
a:hover { color: #8aeadc; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid var(--border);
  background: rgba(7, 17, 31, 0.9);
  backdrop-filter: blur(18px);
}

.nav {
  width: min(calc(100% - 32px), var(--max-width));
  min-height: 68px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  color: var(--text);
  font-weight: 760;
  text-decoration: none;
  letter-spacing: -0.02em;
}

.brand-mark {
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  border-radius: 11px;
  background: linear-gradient(145deg, var(--accent), var(--accent-strong));
  color: #05211d;
  font-size: 20px;
  box-shadow: 0 10px 30px rgba(45, 183, 164, 0.24);
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
  gap: 18px;
}

.nav-links a {
  color: var(--muted);
  font-size: 0.92rem;
  text-decoration: none;
}

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

main {
  width: min(calc(100% - 32px), var(--max-width));
  margin: 0 auto;
}

.hero {
  min-height: 66vh;
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(260px, 0.8fr);
  align-items: center;
  gap: 64px;
  padding: 88px 0 72px;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--accent);
  font-size: 0.8rem;
  font-weight: 760;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

h1, h2, h3 { line-height: 1.2; letter-spacing: -0.025em; }
h1 { margin: 0; font-size: clamp(2.45rem, 7vw, 5rem); }
h2 { margin: 2.5rem 0 0.75rem; font-size: clamp(1.45rem, 4vw, 2rem); }
h3 { margin: 1.5rem 0 0.45rem; font-size: 1.08rem; }

.hero-copy {
  max-width: 680px;
  margin: 24px 0 0;
  color: var(--muted);
  font-size: clamp(1.05rem, 2vw, 1.22rem);
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  padding: 0 20px;
  border: 1px solid var(--border);
  border-radius: 14px;
  color: var(--text);
  background: var(--surface);
  font-weight: 700;
  text-decoration: none;
}

.button.primary { border-color: transparent; background: var(--accent); color: #05211d; }

.hero-card, .card {
  border: 1px solid var(--border);
  border-radius: 24px;
  background: linear-gradient(145deg, rgba(17, 36, 58, 0.96), rgba(10, 24, 41, 0.96));
  box-shadow: 0 28px 70px rgba(0, 0, 0, 0.25);
}

.hero-card { padding: 30px; }
.hero-card p { color: var(--muted); }

.feature-list, .plain-list { padding-left: 1.2rem; }
.feature-list li, .plain-list li { margin: 0.55rem 0; }

.section { padding: 34px 0 72px; }

.grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.card { padding: 24px; }
.card h3 { margin-top: 0; }
.card p { margin-bottom: 0; color: var(--muted); }

.legal {
  max-width: 790px;
  padding: 64px 0 88px;
}

.legal h1 { font-size: clamp(2.2rem, 6vw, 3.8rem); }
.legal p, .legal li { color: #c5d0de; }
.legal strong { color: var(--text); }
.updated { margin: 12px 0 36px; color: var(--muted); }
.notice {
  margin: 28px 0;
  padding: 18px 20px;
  border: 1px solid rgba(89, 214, 196, 0.35);
  border-radius: 16px;
  background: rgba(89, 214, 196, 0.08);
}

.contact-card {
  margin: 30px 0;
  padding: 24px;
  border: 1px solid var(--border);
  border-radius: 20px;
  background: var(--surface);
}

.contact-card h2 { margin-top: 0; }

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

.footer-inner {
  width: min(calc(100% - 32px), var(--max-width));
  margin: 0 auto;
  padding: 30px 0 44px;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 16px;
}

.footer-links { display: flex; flex-wrap: wrap; gap: 16px; }
.footer-links a { color: var(--muted); text-decoration: none; }

@media (max-width: 760px) {
  .nav { align-items: flex-start; padding: 14px 0; }
  .nav-links { gap: 10px 14px; }
  .hero { grid-template-columns: 1fr; gap: 32px; padding-top: 64px; }
  .grid { grid-template-columns: 1fr; }
}

@media (max-width: 520px) {
  .nav { flex-direction: column; gap: 10px; }
  .site-header { position: static; }
  .hero { padding-top: 48px; }
}