:root {
  --bg: #f6f4ef; --surface: #ffffff; --ink: #1f2a33; --muted: #5b6670; --line: #e3e0d8;
  --accent: #1f6f6b; --accent-ink: #ffffff; --accent-soft: #e3efed; --error: #9b2c2c; --error-soft: #fbeaea; --ok-soft: #e6f2ea;
  --art: #efece5; --radius: 12px;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #15191c; --surface: #1e2428; --ink: #eef1f3; --muted: #a2adb5; --line: #2d353b;
    --accent: #4fb3ac; --accent-ink: #0d1b1a; --accent-soft: #1d3331; --error: #f08f8f; --error-soft: #3a2222; --ok-soft: #1f3326;
    --art: #e9e6df;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 16px/1.55 system-ui, -apple-system, "Segoe UI", sans-serif; }
a { color: var(--accent); }
img { max-width: 100%; }
h1, h2, h3 { line-height: 1.2; }
.muted { color: var(--muted); }
.hint { color: var(--muted); font-size: .9rem; }
small { font-size: .82em; color: var(--muted); font-weight: 400; }
[hidden] { display: none !important; }

/* header / footer */
.site-header { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 8px 20px; padding: 14px 16px; border-bottom: 1px solid var(--line); background: var(--surface); }
.brand { font-weight: 700; font-size: 1.15rem; color: var(--ink); text-decoration: none; letter-spacing: .01em; }
.brand span { font-weight: 400; color: var(--muted); }
.site-header nav { display: flex; flex-wrap: wrap; gap: 4px 18px; align-items: center; }
.site-header nav a { color: var(--ink); text-decoration: none; font-weight: 500; }
.site-header nav a:hover { color: var(--accent); }
.badge { display: inline-block; min-width: 1.4em; padding: 0 .4em; border-radius: 999px; background: var(--accent); color: var(--accent-ink); font-size: .8rem; text-align: center; }
.wrap { max-width: 1120px; margin: 0 auto; padding: 20px 16px 48px; }
.site-footer { border-top: 1px solid var(--line); padding: 20px 16px; color: var(--muted); font-size: .88rem; text-align: center; }
.site-footer p { margin: 4px 0; }

/* buttons, forms */
.btn { display: inline-flex; align-items: center; justify-content: center; min-height: 44px; padding: 10px 20px; border-radius: 999px; border: 1px solid var(--accent);
       background: var(--accent); color: var(--accent-ink); font: inherit; font-weight: 600; text-decoration: none; cursor: pointer; }
.btn.secondary { background: transparent; color: var(--accent); }
.btn.block { display: flex; width: 100%; margin-top: 10px; }
button.link { background: none; border: 0; padding: 0; color: var(--accent); font: inherit; cursor: pointer; text-decoration: underline; }
form.inline { display: inline; }
label { display: block; margin: 0 0 12px; font-size: .94rem; }
input:not([type=radio]):not([type=checkbox]), select, textarea {
  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; min-height: 42px; }
input[type=radio], input[type=checkbox] { accent-color: var(--accent); width: 18px; height: 18px; vertical-align: -3px; margin: 0 6px 0 0; }
fieldset { border: 1px solid var(--line); border-radius: var(--radius); padding: 12px 16px 6px; margin: 0 0 16px; background: var(--surface); min-width: 0; }
legend { font-weight: 650; padding: 0 6px; }
.choice { display: block; margin: 6px 0 10px; cursor: pointer; }
.row { display: flex; flex-wrap: wrap; gap: 0 14px; }
.row > label { flex: 1 1 160px; }
.flash { padding: 10px 14px; border-radius: 8px; margin: 0 0 16px; }
.flash p { margin: 4px 0; }
.flash-error { background: var(--error-soft); color: var(--error); }
.flash-ok { background: var(--ok-soft); }
.tag { display: inline-block; font-size: .78rem; padding: 2px 8px; border-radius: 999px; background: var(--accent-soft); color: var(--ink); font-weight: 600; }

/* home / catalogue */
.hero { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: clamp(20px, 5vw, 48px); margin-bottom: 28px; }
.hero h1 { font-size: clamp(1.7rem, 4.5vw, 2.6rem); margin: 0 0 12px; max-width: 18em; }
.hero p { max-width: 38em; color: var(--muted); margin: 0 0 18px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 10px; }
.page-title { font-size: clamp(1.5rem, 4vw, 2rem); margin: 0 0 18px; }
.section-title { font-size: 1.25rem; margin: 0 0 14px; }
.grid { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 16px; }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; display: flex; flex-direction: column; }
.card-link { display: grid; gap: 2px; padding: 0 14px 12px; color: var(--ink); text-decoration: none; flex: 1; }
.card-img { margin: 0 -14px 10px; aspect-ratio: 4 / 3; background: var(--art); display: grid; place-items: center; padding: 18px; }
.card-img img { width: 100%; height: 100%; object-fit: contain; }
.card-img.is-photo { padding: 0; }
.card-img.is-photo img { object-fit: cover; }
.card-name { font-weight: 650; }
.card-meta { color: var(--muted); font-size: .9rem; }
.card-price { font-weight: 600; margin-top: 4px; }
.card-try { display: block; border-top: 1px solid var(--line); padding: 10px 14px; text-decoration: none; font-weight: 600; font-size: .92rem; }

/* product */
.crumbs { font-size: .9rem; color: var(--muted); margin-bottom: 14px; }
.product { display: grid; gap: 28px; }
@media (min-width: 880px) { .product { grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr); align-items: start; } .product-media { position: sticky; top: 16px; } }
.product-hero { background: var(--art); border-radius: var(--radius); aspect-ratio: 4 / 3; display: grid; place-items: center; padding: 8%; }
.product-hero img { width: 100%; height: 100%; object-fit: contain; }
.product-hero.is-photo { padding: 0; overflow: hidden; }
.product-hero.is-photo img { object-fit: cover; }
.thumbs { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; margin-top: 8px; }
.thumbs img { border-radius: 8px; aspect-ratio: 1; object-fit: cover; }
.try-btn { margin-top: 12px; width: 100%; }
.product-info h1 { margin: 0 0 4px; font-size: clamp(1.5rem, 4vw, 2rem); }
.price { font-size: 1.35rem; font-weight: 650; margin: 10px 0; }
.sizes { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; margin: 16px 0 6px; }
.sizes div { background: var(--surface); border: 1px solid var(--line); border-radius: 8px; padding: 8px; text-align: center; }
.sizes dt { font-size: .76rem; color: var(--muted); }
.sizes dd { margin: 0; font-weight: 650; }
@media (max-width: 420px) { .sizes { grid-template-columns: repeat(2, 1fr); } }
.buy { margin-top: 18px; }
.qty input { max-width: 90px; }
.rx-table-wrap { overflow-x: auto; }
.rx-table { width: 100%; border-collapse: collapse; font-size: .9rem; margin: 6px 0 12px; }
.rx-table th, .rx-table td { padding: 4px; text-align: left; }
.rx-table select, .rx-table input { min-width: 74px; padding: 7px 6px; }
.rx-total { font-size: 1.1rem; }
.rx-summary { margin: 6px 0 4px; font-size: .88rem; display: grid; gap: 1px; }
.rx-summary div { display: flex; gap: 8px; }
.rx-summary dt { color: var(--muted); min-width: 8.5em; }
.rx-summary dd { margin: 0; }

/* cart / checkout */
.cart, .checkout { display: grid; gap: 24px; }
@media (min-width: 880px) { .cart, .checkout { grid-template-columns: minmax(0, 1.6fr) minmax(280px, 1fr); align-items: start; } }
.cart-lines { list-style: none; margin: 0; padding: 0; display: grid; gap: 12px; }
.cart-line { display: grid; grid-template-columns: 90px 1fr auto; gap: 12px; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 12px; }
.cart-img { background: var(--art); border-radius: 8px; display: grid; place-items: center; padding: 6px; aspect-ratio: 4 / 3; }
.cart-body a { color: var(--ink); text-decoration: none; }
.cart-body input { max-width: 80px; display: inline-block; }
.cart-price { font-weight: 600; }
@media (max-width: 520px) { .cart-line { grid-template-columns: 70px 1fr; } .cart-price { grid-column: 2; } }
.summary { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px; position: sticky; top: 16px; }
.summary > div { display: flex; justify-content: space-between; gap: 10px; margin: 6px 0; }
.summary .total { font-weight: 700; font-size: 1.1rem; border-top: 1px solid var(--line); padding-top: 10px; margin-top: 10px; }
.summary hr { border: 0; border-top: 1px solid var(--line); }
.summary.wide { position: static; max-width: 640px; }
.confirm { background: var(--accent-soft); padding: 12px 14px; border-radius: var(--radius); }
.callout { background: var(--accent-soft); border-radius: var(--radius); padding: 14px 18px; margin: 18px 0; max-width: 640px; }
.callout h2 { font-size: 1.1rem; margin: 0 0 6px; }
.prose { max-width: 680px; }

/* coming soon */
body.soon { min-height: 100vh; display: grid; place-items: center; text-align: center; padding: 24px; }
body.soon main { max-width: 34em; }
body.soon h1 { font-size: clamp(1.6rem, 5vw, 2.4rem); }
body.soon p { color: var(--muted); }

/* admin */
.admin .site-header nav { gap: 4px 16px; }
.admin-login { max-width: 360px; margin: 40px auto; }
.tabs { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 14px; }
.tabs a { padding: 6px 12px; border-radius: 999px; border: 1px solid var(--line); text-decoration: none; color: var(--ink); font-size: .88rem; background: var(--surface); }
.tabs a[aria-current] { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }
.table-wrap { overflow-x: auto; }
.admin-table { width: 100%; border-collapse: collapse; background: var(--surface); border-radius: var(--radius); overflow: hidden; font-size: .92rem; }
.admin-table th, .admin-table td { padding: 10px 12px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: middle; }
.admin-table .num { text-align: right; white-space: nowrap; }
.admin-thumb { width: 84px; height: 34px; object-fit: contain; background: var(--art); border-radius: 6px; }
.admin-art { max-width: 320px; background: var(--art); border-radius: 8px; padding: 10px; }
.admin-grid { display: grid; gap: 24px; }
@media (min-width: 880px) { .admin-grid { grid-template-columns: minmax(0, 1.6fr) minmax(280px, 1fr); align-items: start; } }
.admin-item { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 12px 16px; margin-bottom: 12px; }
.admin-item h3 { margin: 0 0 6px; font-size: 1rem; }
.admin-form { max-width: 860px; }
.photo-grid { display: flex; flex-wrap: wrap; gap: 10px; }
.photo-pick img { width: 110px; height: 80px; object-fit: cover; border-radius: 6px; display: block; }
.calib { margin: 10px 0 14px; }
.calib-canvas { width: 100%; max-width: 700px; border-radius: 8px; cursor: crosshair; display: block; }
.btn.small { min-height: 36px; padding: 4px 12px; font-size: .88rem; }