:root {
  --bg: #fbfbfd;
  --surface: #ffffff;
  --text: #1a1b25;
  --muted: #5a5d70;
  --line: #e4e5ee;
  --accent: #5b3df5;
  --accent-soft: #efebff;
  --max: 960px;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1017;
    --surface: #171923;
    --text: #ecedf5;
    --muted: #a0a3b8;
    --line: #2a2d3c;
    --accent: #9d8bff;
    --accent-soft: #231f3d;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 17px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}
a { color: var(--accent); }
.wrap { max-width: var(--max); margin: 0 auto; padding: 0 20px; }

header.site {
  border-bottom: 1px solid var(--line);
  background: var(--surface);
}
header.site .wrap {
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 12px; padding-top: 16px; padding-bottom: 16px;
}
.brand { font-weight: 700; font-size: 1.1rem; color: var(--text); text-decoration: none; letter-spacing: -0.01em; }
.brand span { color: var(--accent); }
nav a { color: var(--muted); text-decoration: none; margin-left: 20px; font-size: 0.95rem; }
nav a:first-child { margin-left: 0; }
nav a:hover, nav a[aria-current="page"] { color: var(--text); }

.hero { padding: 88px 0 64px; }
.hero h1 { font-size: clamp(2rem, 5vw, 3rem); line-height: 1.15; margin: 0 0 16px; letter-spacing: -0.02em; }
.hero p { font-size: 1.15rem; color: var(--muted); max-width: 640px; margin: 0 0 28px; }
.btn {
  display: inline-block; background: var(--accent); color: #fff; text-decoration: none;
  padding: 12px 22px; border-radius: 8px; font-weight: 600;
}
@media (prefers-color-scheme: dark) { .btn { color: #0f1017; } }

section { padding: 48px 0; border-top: 1px solid var(--line); }
section h2 { font-size: 1.6rem; margin: 0 0 8px; letter-spacing: -0.01em; }
section > .wrap > p.lead { color: var(--muted); margin: 0 0 28px; max-width: 680px; }

.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 20px; }
.card {
  background: var(--surface); border: 1px solid var(--line); border-radius: 12px; padding: 24px;
}
.card h3 { margin: 0 0 8px; font-size: 1.1rem; }
.card p { margin: 0; color: var(--muted); font-size: 0.97rem; }
.card ul { margin: 12px 0 0; padding-left: 18px; color: var(--muted); font-size: 0.95rem; }

ol.steps { padding-left: 20px; max-width: 720px; }
ol.steps li { margin-bottom: 12px; }

.note {
  background: var(--accent-soft); border-radius: 12px; padding: 20px 24px; max-width: 720px;
}

/* Policy pages */
.doc { padding: 56px 0 72px; max-width: 760px; }
.doc h1 { font-size: 2.1rem; margin: 0 0 4px; letter-spacing: -0.02em; }
.doc .updated { color: var(--muted); margin: 0 0 32px; font-size: 0.95rem; }
.doc h2 { font-size: 1.25rem; margin: 36px 0 8px; }

footer.site {
  border-top: 1px solid var(--line); background: var(--surface);
  color: var(--muted); font-size: 0.9rem; padding: 32px 0;
}
footer.site .wrap { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 16px; }
footer.site a { color: var(--muted); margin-right: 16px; }
footer.site a:last-child { margin-right: 0; }