:root {
  color-scheme: dark;
  --bg: #0c0a1e;
  --panel: rgba(255, 255, 255, 0.07);
  --line: rgba(255, 255, 255, 0.14);
  --text: #ffffff;
  --body: rgba(255, 255, 255, 0.76);
  --muted: rgba(255, 255, 255, 0.54);
  --lime: #c8ff00;
  --cyan: #00e5ff;
  --pink: #ff44cc;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at 12% 0%, rgba(200, 255, 0, 0.18), transparent 30%),
    radial-gradient(circle at 82% 12%, rgba(255, 68, 204, 0.16), transparent 32%),
    var(--bg);
  color: var(--text);
  line-height: 1.65;
}

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

.site-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 18px clamp(18px, 4vw, 44px);
  border-bottom: 1px solid var(--line);
  background: rgba(12, 10, 30, 0.78);
}

.brand {
  color: var(--text);
  font-weight: 800;
  text-decoration: none;
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.nav-links a {
  color: var(--body);
  text-decoration: none;
  font-size: 0.95rem;
}

main {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
}

.hero {
  padding: 64px 0 42px;
  max-width: 860px;
}

.eyebrow {
  color: var(--lime);
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1 {
  margin: 12px 0 18px;
  font-size: clamp(2.3rem, 5vw, 5.2rem);
  line-height: 0.96;
  letter-spacing: 0;
}

h2 {
  margin: 42px 0 14px;
  font-size: clamp(1.55rem, 3vw, 2.2rem);
  line-height: 1.08;
  letter-spacing: 0;
}

h3 {
  margin: 0 0 8px;
  font-size: 1.1rem;
}

p {
  color: var(--body);
  font-size: 1.04rem;
}

.lede {
  font-size: 1.2rem;
  color: rgba(255, 255, 255, 0.84);
  max-width: 760px;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 10px 18px;
  border-radius: 7px;
  border: 1px solid var(--line);
  color: var(--text);
  text-decoration: none;
  font-weight: 750;
}

.button.primary {
  background: var(--lime);
  color: #101018;
  border-color: transparent;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 16px;
  margin: 22px 0;
}

.card {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 18px;
  background: var(--panel);
}

.swatches {
  display: grid;
  grid-template-columns: repeat(5, minmax(34px, 1fr));
  gap: 8px;
  margin: 14px 0 4px;
}

.swatch {
  min-height: 58px;
  border-radius: 7px;
  border: 1px solid rgba(255, 255, 255, 0.22);
}

.note {
  color: var(--muted);
  font-size: 0.94rem;
}

.section {
  padding: 10px 0 42px;
}

.quiet {
  color: var(--muted);
}

footer {
  width: min(1120px, calc(100% - 32px));
  margin: 36px auto 0;
  padding: 28px 0 40px;
  border-top: 1px solid var(--line);
  color: var(--muted);
}

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