:root {
  color-scheme: dark;
  --background: #0c0d0f;
  --surface: #15181b;
  --surface-strong: #1d2125;
  --border: #2a3035;
  --text: #f5f7f8;
  --muted: #9aa2aa;
  --brand: #00e599;
  --warning: #ffcc66;
  font-family: "Manrope", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }

html { background: var(--background); scroll-behavior: smooth; }

body {
  margin: 0;
  background:
    radial-gradient(circle at 10% -10%, rgba(0, 229, 153, 0.16), transparent 30rem),
    var(--background);
  color: var(--text);
  line-height: 1.65;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(12, 13, 15, 0.9);
  backdrop-filter: blur(18px);
}

.header-inner,
.page,
.footer-inner {
  width: min(100% - 2rem, 960px);
  margin-inline: auto;
}

.header-inner {
  min-height: 4rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  color: var(--text);
  font-weight: 800;
  letter-spacing: -0.03em;
  text-decoration: none;
}

.nav { display: flex; flex-wrap: wrap; gap: 0.85rem; }
.nav a { color: var(--muted); font-size: 0.82rem; font-weight: 700; text-decoration: none; }
.nav a[aria-current="page"] { color: var(--brand); }

.page { padding-block: 4rem 5rem; }

.eyebrow {
  margin: 0 0 0.75rem;
  color: var(--brand);
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

h1, h2, h3 { line-height: 1.15; letter-spacing: -0.025em; }
h1 { max-width: 780px; margin: 0; font-size: clamp(2.35rem, 7vw, 4.8rem); }
h2 { margin: 3rem 0 1rem; font-size: clamp(1.55rem, 4vw, 2.2rem); }
h3 { margin: 1.8rem 0 0.5rem; font-size: 1.05rem; }
p, li { color: var(--muted); }
strong { color: var(--text); }

.lede { max-width: 760px; margin-top: 1.25rem; font-size: 1.08rem; }

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1rem;
  margin-top: 1.5rem;
}

.card {
  border: 1px solid var(--border);
  border-radius: 1.25rem;
  background: linear-gradient(145deg, var(--surface-strong), var(--surface));
  padding: 1.25rem;
}

.card h3 { margin-top: 0; }
.card p:last-child { margin-bottom: 0; }

.toc {
  margin-top: 2rem;
  border: 1px solid var(--border);
  border-radius: 1.25rem;
  background: var(--surface);
  padding: 1.25rem;
}

.toc ol { columns: 2; padding-left: 1.25rem; }
.toc a { color: var(--text); text-decoration-color: rgba(0, 229, 153, 0.45); }

.legal-section { scroll-margin-top: 5rem; }
.legal-section ul { padding-left: 1.25rem; }
.legal-section li + li { margin-top: 0.55rem; }

.site-footer { border-top: 1px solid var(--border); background: #090a0b; }
.footer-inner { padding-block: 2rem; display: flex; flex-wrap: wrap; justify-content: space-between; gap: 1rem; }
.footer-inner p { margin: 0; font-size: 0.82rem; }
.footer-links { display: flex; flex-wrap: wrap; gap: 1rem; }

@media (max-width: 640px) {
  .header-inner { align-items: flex-start; flex-direction: column; padding-block: 0.9rem; }
  .page { padding-top: 2.5rem; }
  .toc ol { columns: 1; }
}