:root {
  --ink: #1e1b3a;
  --muted: #5b5876;
  --line: #e6e3f3;
  --bg: #ffffff;
  --soft: #f6f4fd;
  --brand-a: #4338ca;
  --brand-b: #7c3aed;
  --sun: #fcd34d;
  --radius: 18px;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
  font-size: 17px;
}
a { color: var(--brand-b); }
img { max-width: 100%; display: block; }
.wrap { max-width: 1040px; margin: 0 auto; padding: 0 20px; }

/* Header */
.top { position: sticky; top: 0; z-index: 10; background: rgba(255,255,255,.92); backdrop-filter: blur(8px); border-bottom: 1px solid var(--line); }
.top .wrap { display: flex; align-items: center; justify-content: space-between; height: 64px; gap: 16px; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--ink); font-family: "Poppins", sans-serif; font-weight: 600; font-size: 17px; white-space: nowrap; }
.brand img { width: 34px; height: 34px; border-radius: 9px; }
.nav { display: flex; gap: 18px; font-size: 15px; }
.nav a { color: var(--muted); text-decoration: none; }
.nav a:hover { color: var(--ink); }
@media (max-width: 560px) { .nav .hide-sm { display: none; } .brand span { display: none; } }

/* Hero */
.hero { background: linear-gradient(135deg, var(--brand-a), var(--brand-b)); color: #fff; padding: 88px 0 96px; }
.hero h1 { font-family: "Poppins", sans-serif; font-weight: 700; font-size: clamp(34px, 6vw, 56px); line-height: 1.1; margin: 0 0 18px; letter-spacing: -0.02em; max-width: 14em; }
.hero p { font-size: clamp(17px, 2.3vw, 20px); max-width: 38em; margin: 0 0 30px; color: rgba(255,255,255,.9); }
.eyebrow { font-family: "IBM Plex Mono", monospace; font-weight: 600; letter-spacing: .12em; text-transform: uppercase; font-size: 13px; color: var(--sun); margin: 0 0 14px; }
.btn { display: inline-block; padding: 14px 22px; border-radius: 12px; font-weight: 600; text-decoration: none; }
.btn-light { background: #fff; color: var(--brand-a); }
.btn-ghost { color: #fff; border: 1px solid rgba(255,255,255,.5); margin-left: 8px; }
@media (max-width: 420px) { .btn-ghost { margin: 10px 0 0; } }

/* Sections */
section { padding: 72px 0; }
section.alt { background: var(--soft); }
h2 { font-family: "Poppins", sans-serif; font-size: clamp(26px, 4vw, 34px); line-height: 1.2; margin: 0 0 12px; letter-spacing: -0.01em; }
.lead { color: var(--muted); max-width: 40em; margin: 0 0 36px; }
.grid { display: grid; gap: 18px; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }
.card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; }
.card h3 { font-family: "Poppins", sans-serif; font-size: 18px; margin: 0 0 6px; }
.card p { margin: 0; color: var(--muted); font-size: 16px; }
.step { font-family: "IBM Plex Mono", monospace; font-weight: 600; color: var(--brand-b); font-size: 14px; margin-bottom: 8px; }
.platforms { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 8px; }
.pill { border: 1px solid var(--line); background: #fff; border-radius: 999px; padding: 6px 14px; font-size: 15px; }
.split { display: grid; gap: 28px; grid-template-columns: 1fr 1fr; align-items: start; }
@media (max-width: 760px) { .split { grid-template-columns: 1fr; } }
ul.checks { list-style: none; padding: 0; margin: 0; }
ul.checks li { padding-left: 28px; position: relative; margin: 0 0 10px; }
ul.checks li::before { content: "✓"; position: absolute; left: 0; color: var(--brand-b); font-weight: 700; }

/* Legal documents */
.doc { padding: 56px 0 80px; }
.doc .wrap { max-width: 760px; }
.doc h1 { font-family: "Poppins", sans-serif; font-size: clamp(30px, 5vw, 42px); line-height: 1.15; margin: 0 0 8px; }
.doc .updated { color: var(--muted); margin: 0 0 32px; font-size: 15px; }
.doc h2 { font-size: 22px; margin: 40px 0 10px; scroll-margin-top: 80px; }
.doc h3 { font-size: 17px; margin: 22px 0 6px; }
.doc p, .doc li { color: #34314f; }
.doc ul { padding-left: 22px; }
.doc li { margin: 0 0 6px; }
.toc { background: var(--soft); border-radius: var(--radius); padding: 18px 22px; margin: 0 0 8px; }
.toc ol { margin: 0; padding-left: 20px; columns: 2; column-gap: 28px; }
@media (max-width: 560px) { .toc ol { columns: 1; } }
.toc a { text-decoration: none; }
.note { border-left: 4px solid var(--brand-b); background: var(--soft); padding: 12px 16px; border-radius: 0 12px 12px 0; }

/* Footer */
footer { border-top: 1px solid var(--line); padding: 28px 0 40px; color: var(--muted); font-size: 15px; }
footer .wrap { display: flex; flex-wrap: wrap; gap: 12px 24px; justify-content: space-between; }
footer nav { display: flex; gap: 18px; flex-wrap: wrap; }
footer a { color: var(--muted); }