:root {
  --bg: #fafaf9; --surface: #ffffff; --text: #1c1917; --muted: #78716c; --border: #e7e5e4;
  --accent: #0f766e; --accent-ink: #ffffff; --danger: #b91c1c; --sale: #dc2626; --radius: 14px;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #0c0a09; --surface: #1c1917; --text: #f5f5f4; --muted: #a8a29e; --border: #292524; --accent: #14b8a6; --accent-ink: #042f2e; }
}
* { box-sizing: border-box; }
html, body { margin: 0; }
body { font-family: "Assistant", system-ui, -apple-system, "Segoe UI", Arial, sans-serif; background: var(--bg); color: var(--text); line-height: 1.55; font-size: 16px; }
a { color: inherit; }
img { max-width: 100%; display: block; }
.wrap { max-width: 1120px; margin: 0 auto; padding: 0 16px; }
header.site { background: var(--surface); border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 10; }
header.site .wrap { display: flex; align-items: center; justify-content: space-between; height: 64px; gap: 16px; }
.logo { font-weight: 800; font-size: 22px; text-decoration: none; letter-spacing: -.5px; }
.nav { display: flex; gap: 18px; align-items: center; }
.nav a { text-decoration: none; color: var(--muted); }
.nav a:hover { color: var(--text); }
.cart-link { position: relative; font-weight: 600; color: var(--text) !important; }
.badge { background: var(--accent); color: var(--accent-ink); border-radius: 999px; font-size: 12px; padding: 1px 7px; margin-inline-start: 4px; }
main { min-height: 60vh; padding: 28px 0 56px; }
h1 { font-size: 28px; margin: 0 0 18px; line-height: 1.2; }
.hero { padding: 28px 0 8px; }
.hero p { color: var(--muted); margin: 0 0 12px; }
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 18px; }
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; text-decoration: none; display: flex; flex-direction: column; transition: transform .15s; }
.card:hover { transform: translateY(-2px); }
.card img { aspect-ratio: 1; object-fit: cover; width: 100%; background: var(--border); }
.card .info { padding: 12px 14px 16px; display: flex; flex-direction: column; gap: 6px; }
.card .title { font-size: 15px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.price { font-weight: 700; font-size: 18px; }
.compare { color: var(--muted); text-decoration: line-through; font-weight: 400; font-size: 14px; margin-inline-start: 8px; }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; background: var(--accent); color: var(--accent-ink); border: 0; border-radius: 10px; padding: 12px 22px; font: inherit; font-weight: 700; cursor: pointer; text-decoration: none; }
.btn:disabled { opacity: .5; cursor: not-allowed; }
.btn.secondary { background: transparent; color: var(--text); border: 1px solid var(--border); }
.btn.small { padding: 6px 12px; font-size: 14px; }
.btn.danger { background: var(--danger); color: #fff; }
.product { display: grid; grid-template-columns: 1fr 1fr; gap: 36px; }
.gallery .main { aspect-ratio: 1; object-fit: contain; width: 100%; background: var(--surface); border-radius: var(--radius); border: 1px solid var(--border); }
.thumbs { display: flex; gap: 8px; margin-top: 10px; overflow-x: auto; }
.thumbs img { width: 64px; height: 64px; object-fit: cover; border-radius: 8px; border: 2px solid transparent; cursor: pointer; flex: none; }
.thumbs img.on { border-color: var(--accent); }
.opt-group { margin: 16px 0; }
.opt-group .label { font-weight: 600; margin-bottom: 8px; }
.opts { display: flex; flex-wrap: wrap; gap: 8px; }
.opt { border: 1px solid var(--border); background: var(--surface); color: var(--text); border-radius: 8px; padding: 7px 12px; cursor: pointer; font: inherit; display: flex; align-items: center; gap: 6px; }
.opt img { width: 28px; height: 28px; object-fit: cover; border-radius: 4px; }
.opt.on { border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent); }
.opt:disabled { opacity: .35; text-decoration: line-through; cursor: not-allowed; }
.qty { display: inline-flex; align-items: center; border: 1px solid var(--border); border-radius: 10px; overflow: hidden; }
.qty button { background: var(--surface); color: var(--text); border: 0; width: 36px; height: 40px; font-size: 18px; cursor: pointer; }
.qty input { width: 44px; text-align: center; border: 0; height: 40px; background: var(--surface); color: var(--text); font: inherit; }
.perks { list-style: none; padding: 0; margin: 20px 0; color: var(--muted); display: grid; gap: 6px; }
.description { margin-top: 40px; overflow-wrap: anywhere; }
.description img { margin: 8px auto; height: auto; }
.panel { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 20px; }
.cart-layout { display: grid; grid-template-columns: 1.3fr 1fr; gap: 24px; align-items: start; }
.line { display: grid; grid-template-columns: 72px 1fr auto; gap: 14px; align-items: center; padding: 12px 0; border-bottom: 1px solid var(--border); }
.line img { width: 72px; height: 72px; object-fit: cover; border-radius: 8px; }
.line .meta { color: var(--muted); font-size: 14px; }
.link-btn { background: none; border: 0; color: var(--muted); cursor: pointer; font: inherit; text-decoration: underline; padding: 0; font-size: 14px; }
.totals div { display: flex; justify-content: space-between; padding: 4px 0; }
.totals .grand { font-size: 20px; font-weight: 800; border-top: 1px solid var(--border); margin-top: 8px; padding-top: 10px; }
form.fields { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
form.fields .full { grid-column: 1 / -1; }
label { display: grid; gap: 4px; font-size: 14px; color: var(--muted); }
input, select, textarea { font: inherit; color: var(--text); background: var(--bg); border: 1px solid var(--border); border-radius: 8px; padding: 10px 12px; width: 100%; }
textarea { min-height: 90px; }
input:focus, select:focus, textarea:focus { outline: 2px solid var(--accent); outline-offset: -1px; }
.error { color: var(--danger); margin: 10px 0; }
.notice { background: color-mix(in srgb, var(--accent) 12%, transparent); border-radius: 10px; padding: 12px 14px; margin: 12px 0; }
.muted { color: var(--muted); }
.steps { display: flex; gap: 8px; flex-wrap: wrap; margin: 16px 0; }
.step { padding: 6px 12px; border-radius: 999px; background: var(--border); color: var(--muted); font-size: 14px; }
.step.on { background: var(--accent); color: var(--accent-ink); }
.prose { max-width: 760px; }
.prose h2 { margin-top: 28px; }
footer.site { border-top: 1px solid var(--border); padding: 28px 0; color: var(--muted); font-size: 14px; }
footer.site .wrap { display: flex; flex-wrap: wrap; gap: 16px 24px; justify-content: space-between; }
footer.site nav { display: flex; flex-wrap: wrap; gap: 16px; }
.empty { text-align: center; padding: 60px 0; color: var(--muted); }
@media (max-width: 800px) {
  .product, .cart-layout { grid-template-columns: 1fr; gap: 20px; }
  form.fields { grid-template-columns: 1fr; }
  .nav .hide-sm { display: none; }
  h1 { font-size: 24px; }
  .grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
}
.card .price { display: flex; flex-wrap: wrap; align-items: baseline; gap: 0 8px; }
.card .compare { margin: 0; }