:root {
  --bg: #fbf8f4;
  --surface: #ffffff;
  --ink: #241d16;
  --muted: #7d7167;
  --line: #e7ded3;
  --accent: #b4571f;
  --accent-ink: #ffffff;
  --danger: #a8321f;
  --ok: #2f6b45;
  --radius: 10px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.55 ui-sans-serif, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

main {
  max-width: 960px;
  margin: 0 auto;
  padding: 32px 20px 64px;
}

a { color: var(--accent); }
h1 { font-size: 1.9rem; margin: 0 0 16px; letter-spacing: -0.01em; }
h2 { font-size: 1.15rem; margin: 24px 0 8px; }
h3 { font-size: 1rem; margin: 4px 0; }

/* header ------------------------------------------------------------------ */

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 20px;
  background: var(--surface);
  border-bottom: 1px solid var(--line);
}
.brand {
  font-weight: 700;
  font-size: 1.15rem;
  text-decoration: none;
  color: var(--ink);
}
.brand-mark { margin-right: 4px; }
.site-header nav {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 0.94rem;
}
.site-header nav a { text-decoration: none; color: var(--ink); }
.site-header nav a:hover { color: var(--accent); }
.who { color: var(--muted); }
.badge {
  display: inline-block;
  min-width: 20px;
  padding: 0 6px;
  border-radius: 999px;
  background: var(--accent);
  color: var(--accent-ink);
  font-size: 0.78rem;
  text-align: center;
}

/* hero + chips ------------------------------------------------------------ */

.hero { margin-bottom: 24px; }
.hero h1 { font-size: 2.2rem; margin-bottom: 6px; }
.hero p { color: var(--muted); margin: 0; }

.chips { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 24px; }
.chip {
  padding: 6px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface);
  text-decoration: none;
  color: var(--ink);
  font-size: 0.88rem;
}
.chip:hover { border-color: var(--accent); }
.chip-active { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }

/* product grid ------------------------------------------------------------ */

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(215px, 1fr));
  gap: 16px;
}
.card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}
.card-body { display: block; padding: 16px; text-decoration: none; color: inherit; }
.card-body:hover h3 { color: var(--accent); }
.card-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  border-top: 1px solid var(--line);
}
.brand { margin: 0; font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--muted); }
.meta { color: var(--muted); font-size: 0.87rem; margin: 4px 0 0; }
.price { font-weight: 700; }
.price.large { font-size: 1.6rem; }
.soldout { color: var(--muted); font-size: 0.87rem; }

/* product detail ---------------------------------------------------------- */

.crumb { margin: 0 0 16px; }
.detail { display: grid; grid-template-columns: 1fr 260px; gap: 32px; align-items: start; }
.detail-buy {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px;
}
.detail-buy .price { display: block; margin: 0 0 4px; }
.stock { color: var(--muted); font-size: 0.9rem; margin: 0 0 16px; }
.description { max-width: 60ch; }

/* forms ------------------------------------------------------------------- */

.narrow { max-width: 420px; margin: 0 auto; }
.center { text-align: center; }
.stack { display: flex; flex-direction: column; gap: 14px; }
.row { display: flex; gap: 14px; }
.row label { flex: 1; }
label { display: block; font-size: 0.9rem; color: var(--muted); }
input {
  display: block;
  width: 100%;
  margin-top: 4px;
  padding: 9px 11px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  color: var(--ink);
  font: inherit;
}
input:focus { outline: 2px solid var(--accent); outline-offset: 1px; border-color: transparent; }
.hint { color: var(--muted); font-size: 0.85rem; margin: 0; }
.swap { margin-top: 20px; color: var(--muted); font-size: 0.9rem; }
form.inline { display: inline; }
.qty input { width: 68px; display: inline-block; margin-right: 4px; }

.button {
  display: inline-block;
  padding: 10px 16px;
  border: 1px solid var(--accent);
  border-radius: 8px;
  background: var(--accent);
  color: var(--accent-ink);
  font: inherit;
  font-weight: 600;
  text-decoration: none;
  text-align: center;
  cursor: pointer;
}
.button:hover { filter: brightness(1.07); }
.button.small { padding: 5px 11px; font-size: 0.87rem; }
.linklike {
  border: 0;
  background: none;
  padding: 0;
  color: var(--accent);
  font: inherit;
  cursor: pointer;
  text-decoration: underline;
}
.linklike.danger { color: var(--danger); }

/* alerts ------------------------------------------------------------------ */

.alert { padding: 10px 14px; border-radius: 8px; margin: 0 0 18px; font-size: 0.92rem; }
.alert-error { background: #fbe9e6; color: var(--danger); border: 1px solid #f0c8c1; }
.alert-info { background: #eaf3ed; color: var(--ok); border: 1px solid #c9e2d3; }

/* cart, checkout, orders -------------------------------------------------- */

table.cart {
  width: 100%;
  border-collapse: collapse;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}
table.cart th, table.cart td { padding: 12px 14px; text-align: left; border-bottom: 1px solid var(--line); }
table.cart th { font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--muted); }
table.cart tr:last-child td { border-bottom: 0; }
.muted { color: var(--muted); font-size: 0.85rem; }

.totals { margin: 20px 0 0; margin-left: auto; max-width: 280px; }
.totals div { display: flex; justify-content: space-between; padding: 5px 0; }
.totals dt, .totals dd { margin: 0; }
.totals dt { color: var(--muted); }
.totals .grand { border-top: 1px solid var(--line); margin-top: 6px; padding-top: 10px; font-weight: 700; }
.totals .grand dt { color: var(--ink); }

.actions { display: flex; align-items: center; justify-content: flex-end; gap: 16px; margin-top: 24px; }

.checkout { display: grid; grid-template-columns: 1fr 300px; gap: 32px; align-items: start; }
.summary {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px;
}
.summary h2 { margin-top: 0; }
.summary ul { list-style: none; padding: 0; margin: 0; font-size: 0.92rem; }
.summary li { display: flex; justify-content: space-between; gap: 12px; padding: 5px 0; }
.summary .totals { max-width: none; }

.confirm h1 { color: var(--ok); }
.address p { color: var(--muted); }

ul.orders { list-style: none; padding: 0; margin: 0; }
ul.orders li {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 14px 16px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  margin-bottom: 10px;
}
ul.orders li strong { margin-left: auto; }

.empty { color: var(--muted); }

/* footer ------------------------------------------------------------------ */

.site-footer {
  border-top: 1px solid var(--line);
  padding: 20px;
  text-align: center;
  color: var(--muted);
  font-size: 0.85rem;
}

@media (max-width: 720px) {
  .detail, .checkout { grid-template-columns: 1fr; }
}