:root {
  --bg: #f6f4ef;
  --fg: #1d1d1b;
  --muted: #6d6a62;
  --line: #d8d3c5;
  --accent: #b04a2f;
  --accent-fg: #fff;
  --warn-bg: #fff3e6;
  --warn-fg: #8a4500;
  --card: #fff;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--fg);
  background: var(--bg);
  line-height: 1.45;
}

.wrap { max-width: 1100px; margin: 0 auto; padding: 0 24px; }
.muted { color: var(--muted); }
.small { font-size: 0.85rem; }
.fineprint { font-size: 0.8rem; color: var(--muted); margin: 8px 0 0; }

.topbar {
  background: var(--fg);
  color: #f6f4ef;
  padding: 16px 0;
  margin-bottom: 28px;
}
.topbar .brand { font-weight: 700; letter-spacing: .02em; }
.topbar .brand-sub { font-size: .85rem; color: #b9b3a4; }

.layout {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 28px;
  align-items: start;
}
@media (max-width: 800px) {
  .layout { grid-template-columns: 1fr; }
  .summary { position: static; }
}

.step-pane {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 24px;
  min-height: 360px;
}

.stepper {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 18px;
  font-size: .8rem;
}
.stepper .pip {
  border: 1px solid var(--line);
  padding: 4px 10px;
  border-radius: 999px;
  background: #fff;
  color: var(--muted);
}
.stepper .pip.done { background: var(--fg); color: #fff; border-color: var(--fg); }
.stepper .pip.current { border-color: var(--accent); color: var(--accent); font-weight: 600; }

h1 { font-size: 1.4rem; margin: 0 0 4px; }
h2 { font-size: 1rem; margin: 0 0 12px; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); }

.opt {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 12px 14px;
  margin-bottom: 8px;
  background: #fff;
  cursor: pointer;
}
.opt:hover { border-color: var(--accent); }
.opt.selected { border-color: var(--accent); box-shadow: inset 0 0 0 1px var(--accent); }
.opt.disabled { opacity: .5; cursor: not-allowed; }
.opt input { margin-top: 4px; }
.opt .info { flex: 1; }
.opt .name { font-weight: 600; }
.opt .desc { font-size: .85rem; color: var(--muted); margin-top: 2px; }
.opt .price { font-variant-numeric: tabular-nums; font-weight: 600; white-space: nowrap; }
.opt .conflict { font-size: .8rem; color: var(--warn-fg); margin-top: 4px; }

.nav { display: flex; justify-content: space-between; margin-top: 22px; gap: 12px; }
button.btn {
  font: inherit;
  padding: 10px 18px;
  border: 1px solid var(--fg);
  background: #fff;
  color: var(--fg);
  border-radius: 4px;
  cursor: pointer;
}
button.btn.primary { background: var(--accent); color: var(--accent-fg); border-color: var(--accent); }
button.btn[disabled] { opacity: .4; cursor: not-allowed; }

.summary {
  position: sticky;
  top: 16px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 18px;
}
.summary h2 { margin-top: 0; }
.sum-row {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 6px 0;
  border-bottom: 1px dashed var(--line);
  font-size: .9rem;
}
.sum-row:last-of-type { border-bottom: 0; }
.sum-row .cat { color: var(--muted); font-size: .75rem; text-transform: uppercase; }
.sum-row .name { font-weight: 500; }
.sum-row .price { font-variant-numeric: tabular-nums; }
.total-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-top: 14px;
  padding-top: 12px;
  border-top: 2px solid var(--fg);
  font-size: 1.1rem;
}

.alerts {
  background: var(--warn-bg);
  color: var(--warn-fg);
  border: 1px solid #f0c89a;
  border-radius: 4px;
  padding: 10px 14px;
  margin-bottom: 14px;
  font-size: .9rem;
}
.alerts ul { margin: 4px 0 0 16px; padding: 0; }

form.contact label { display: block; font-size: .85rem; color: var(--muted); margin-top: 12px; }
form.contact input, form.contact textarea {
  font: inherit;
  width: 100%;
  padding: 8px 10px;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: #fff;
}
form.contact textarea { min-height: 80px; }

.review-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 8px;
}
.review-table th, .review-table td {
  text-align: left;
  padding: 6px 8px;
  border-bottom: 1px solid var(--line);
  font-size: .9rem;
}
.review-table th { color: var(--muted); font-weight: 500; text-transform: uppercase; font-size: .75rem; }
.review-table td.price { text-align: right; font-variant-numeric: tabular-nums; }

.confirm {
  text-align: center;
  padding: 24px 8px;
}
.confirm .ref { font-size: 1.6rem; font-weight: 700; color: var(--accent); margin: 12px 0; font-variant-numeric: tabular-nums; }

footer.wrap { margin: 40px auto; }