:root {
  --bg: #fbfaf8;
  --surface: #ffffff;
  --text: #1f1d1a;
  --muted: #6b665e;
  --line: #e4e0d8;
  --accent: #7a3e1d;
  --accent-text: #ffffff;
  --danger: #b3261e;
  --danger-bg: #fdecea;
  --ok-bg: #e9f5ec;
  --radius: 10px;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #161412;
    --surface: #201d1a;
    --text: #f1ede6;
    --muted: #a39c91;
    --line: #36312b;
    --accent: #d9905f;
    --accent-text: #1a1512;
    --danger: #ff8a80;
    --danger-bg: #3a1c19;
    --ok-bg: #1c3023;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
a { color: var(--accent); }
h1 { font-size: 1.75rem; line-height: 1.2; margin: 0 0 0.5rem; text-wrap: balance; }
h2 { font-size: 1.1rem; margin: 0 0 0.75rem; }
.muted { color: var(--muted); }
.small { font-size: 0.85rem; }
.lede { color: var(--muted); margin: 0 0 1.5rem; }

.site-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem;
  max-width: 1040px;
  margin: 0 auto;
  border-bottom: 1px solid var(--line);
}
.brand { font-weight: 700; font-size: 1.1rem; color: var(--text); text-decoration: none; }
.cart-link { text-decoration: none; font-weight: 600; }
.cart-count {
  display: inline-block;
  min-width: 1.5em;
  padding: 0 0.4em;
  border-radius: 999px;
  background: var(--accent);
  color: var(--accent-text);
  text-align: center;
  font-size: 0.8rem;
  font-variant-numeric: tabular-nums;
}

main { max-width: 1040px; margin: 0 auto; padding: 1.5rem 1rem 3rem; }
main.narrow { max-width: 640px; }

.products {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 1rem;
}
.product {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1rem;
}
.product h2 { margin: 0; }
.product p { margin: 0; color: var(--muted); font-size: 0.9rem; flex: 1; }
.product .price { font-weight: 700; color: var(--text); font-variant-numeric: tabular-nums; flex: none; }

.button {
  display: inline-block;
  border: 0;
  border-radius: var(--radius);
  background: var(--accent);
  color: var(--accent-text);
  font: inherit;
  font-weight: 600;
  padding: 0.7rem 1.1rem;
  cursor: pointer;
  text-decoration: none;
  text-align: center;
}
.button:hover { filter: brightness(1.08); }
.button:focus-visible, input:focus-visible, select:focus-visible, a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
.button[disabled] { opacity: 0.6; cursor: progress; }
.button.secondary { background: transparent; color: var(--accent); border: 1px solid var(--line); }
.button.plain { background: none; color: var(--muted); padding: 0.25rem 0.5rem; font-weight: 400; text-decoration: underline; }

.lines { list-style: none; margin: 0 0 1rem; padding: 0; border-top: 1px solid var(--line); }
.lines li {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--line);
}
.lines .name { flex: 1; min-width: 0; }
.lines .amount { font-variant-numeric: tabular-nums; white-space: nowrap; }
.qty { display: inline-flex; align-items: center; border: 1px solid var(--line); border-radius: var(--radius); }
.qty button { border: 0; background: none; color: var(--text); font: inherit; width: 2.2rem; height: 2.2rem; cursor: pointer; }
.qty span { min-width: 1.5rem; text-align: center; font-variant-numeric: tabular-nums; }
.total { display: flex; justify-content: space-between; font-weight: 700; font-size: 1.1rem; margin: 1rem 0; font-variant-numeric: tabular-nums; }

.checkout { display: grid; gap: 2rem; grid-template-columns: minmax(0, 1fr); }
@media (min-width: 860px) {
  .checkout { grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr); align-items: start; }
}
.summary { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 1rem; }
fieldset { border: 0; padding: 0; margin: 0 0 1.5rem; min-width: 0; }
legend { font-weight: 700; padding: 0; margin-bottom: 0.5rem; }
label { display: block; font-size: 0.9rem; font-weight: 600; margin-bottom: 0.75rem; }
.optional { font-weight: 400; color: var(--muted); }
input, select {
  display: block;
  width: 100%;
  margin-top: 0.25rem;
  padding: 0.6rem 0.7rem;
  font: inherit;
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
}
input[aria-invalid="true"], select[aria-invalid="true"] { border-color: var(--danger); }
label small { display: block; min-height: 1.1em; color: var(--danger); font-weight: 400; }
.row { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0.75rem; }
.row.three { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.notice { background: var(--danger-bg); color: var(--danger); border-radius: var(--radius); padding: 0.75rem 1rem; }
.notice.info { background: var(--ok-bg); color: var(--text); }
.receipt { background: var(--ok-bg); border-radius: var(--radius); padding: 1.25rem; margin-bottom: 1.5rem; }