:root {
  --ink: #1d232a;
  --muted: #56606b;
  --line: #d7dbe0;
  --paper: #ffffff;
  --wash: #f4f5f2;
  --accent: #0e6b5c;
  --accent-ink: #ffffff;
  --warn-bg: #fff3d6;
  --warn-ink: #5c3d00;
  --error: #a3282b;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  color: var(--ink);
  background: var(--wash);
}
* { box-sizing: border-box; }
body { margin: 0; line-height: 1.5; background: var(--wash); }
.banner { margin: 0; padding: 10px 16px; background: var(--warn-bg); color: var(--warn-ink); font-weight: 600; text-align: center; }
.site-header, main, .site-footer { max-width: 880px; margin: 0 auto; padding: 0 16px; }
.site-header { padding-top: 16px; }
.brand { font-size: 1.4rem; font-weight: 700; margin: 0; }
.brand a { color: var(--ink); text-decoration: none; }
.brand-sub { display: block; font-size: 0.85rem; font-weight: 400; color: var(--muted); }
main { background: var(--paper); border: 1px solid var(--line); border-radius: 12px; padding: 24px; margin-top: 16px; margin-bottom: 16px; }
h1 { margin-top: 0; font-size: 1.8rem; line-height: 1.2; }
h2 { font-size: 1.2rem; }
a { color: var(--accent); }
.product-list { list-style: none; padding: 0; display: grid; gap: 16px; }
.product-card { border: 1px solid var(--line); border-radius: 10px; padding: 16px; }
.product-card h2 { margin: 0 0 4px; }
.meta, .hint, .step { color: var(--muted); }
.was { text-decoration: line-through; color: var(--muted); }
.price { font-size: 1.15rem; }
.facts { display: grid; grid-template-columns: max-content 1fr; gap: 4px 16px; }
.facts dt { font-weight: 600; }
.facts dd { margin: 0; }
fieldset { border: 1px solid var(--line); border-radius: 10px; margin: 16px 0; padding: 12px 16px 16px; }
legend { font-weight: 700; padding: 0 6px; }
.options { display: flex; flex-wrap: wrap; gap: 8px; }
.option { display: inline-flex; align-items: center; gap: 6px; border: 1px solid var(--line); border-radius: 8px; padding: 6px 10px; }
.option-row { margin: 8px 0; }
.field { display: grid; gap: 4px; margin: 10px 0; }
input[type="text"], input[type="email"], select { font: inherit; padding: 8px 10px; border: 1px solid #9aa3ad; border-radius: 6px; max-width: 420px; width: 100%; }
button { font: inherit; font-weight: 600; padding: 10px 18px; border-radius: 8px; border: 1px solid var(--accent); background: var(--accent); color: var(--accent-ink); cursor: pointer; }
button.secondary { background: var(--paper); color: var(--accent); }
button:disabled { opacity: 0.6; cursor: wait; }
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 16px; }
table { border-collapse: collapse; width: 100%; margin: 12px 0; }
caption { text-align: left; font-weight: 700; padding-bottom: 6px; }
th, td { text-align: left; padding: 8px; border-bottom: 1px solid var(--line); vertical-align: top; }
.summary th { width: 40%; font-weight: 600; }
.summary .total th, .summary .total td { font-size: 1.15rem; font-weight: 700; }
.error-summary { border: 2px solid var(--error); border-radius: 10px; padding: 12px 16px; margin: 16px 0; }
.error-summary h2 { margin-top: 0; color: var(--error); }
.field-error { color: var(--error); font-weight: 600; }
.notice { background: var(--warn-bg); color: var(--warn-ink); border-radius: 10px; padding: 12px 16px; }
#payment-element { margin: 12px 0 16px; max-width: 520px; }
.site-footer { color: var(--muted); font-size: 0.9rem; padding-bottom: 32px; }
@media (max-width: 600px) { main { padding: 16px; border-radius: 0; } }