:root {
  color-scheme: light;
  --ink: #152238;
  --muted: #52627a;
  --accent: #3457d5;
  --surface: #fff;
  --line: #dbe3ef;
  --preview: #fff2c7;
  --preview-ink: #5f4500;
}

* { box-sizing: border-box; }
body { margin: 0; font: 16px/1.6 system-ui, -apple-system, sans-serif; color: var(--ink); background: #f5f7fb; }
a { color: var(--accent); }
.shell { width: min(1080px, calc(100% - 32px)); margin: auto; }
.preview-banner { padding: 10px 16px; text-align: center; color: var(--preview-ink); background: var(--preview); border-bottom: 1px solid #e4c66b; font-weight: 800; }
.hero { padding: 72px 0 64px; background: linear-gradient(135deg, #eaf0ff, #fff 65%); border-bottom: 1px solid var(--line); }
.eyebrow { color: var(--accent); font-size: .78rem; font-weight: 800; letter-spacing: .12em; }
h1 { max-width: 780px; margin: 12px 0 20px; font-size: clamp(2.2rem, 6vw, 4.7rem); line-height: 1.04; letter-spacing: -.04em; }
h2 { margin: 0 0 12px; font-size: clamp(1.5rem, 3vw, 2.3rem); }
h3 { margin-top: 0; }
.lead { max-width: 720px; color: var(--muted); font-size: 1.18rem; }
.section { padding: 56px 0; border-bottom: 1px solid var(--line); }
.grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; }
.card, .order, details { padding: 24px; background: var(--surface); border: 1px solid var(--line); border-radius: 16px; }
.price { margin: 8px 0; font-size: 2rem; font-weight: 800; }
.steps { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 18px; padding-left: 20px; }
.button { display: inline-block; padding: 12px 18px; border: 0; border-radius: 10px; background: var(--accent); color: #fff; font: inherit; font-weight: 700; text-decoration: none; cursor: pointer; }
.form { display: grid; gap: 16px; max-width: 760px; }
label { display: grid; gap: 6px; font-weight: 700; }
input, select { width: 100%; padding: 11px 12px; border: 1px solid #b8c5d8; border-radius: 8px; background: #fff; font: inherit; }
.two { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.check { display: flex; align-items: flex-start; font-weight: 500; }
.check input { width: auto; margin: 5px 8px 0 0; }
.muted { color: var(--muted); }
.notice { padding: 14px 16px; border-left: 4px solid #d99e00; background: var(--preview); color: var(--preview-ink); }
details { margin: 10px 0; }
summary { font-weight: 700; cursor: pointer; }
.footer { display: grid; gap: 10px; padding: 32px 0; }
.footer nav { display: flex; flex-wrap: wrap; gap: 18px; }
@media (max-width: 720px) { .hero { padding: 48px 0; } .grid, .steps, .two { grid-template-columns: 1fr; } .card, .order { padding: 18px; } }