/* Kaku — storefront and admin styles. No external assets; system fonts. */

/* Default palette (简约, light). */
:root {
  --bg: #fafafa;
  --bg-soft: #f4f4f5;
  --card: #ffffff;
  --text: #09090b;
  --text-2: #3f3f46;
  --muted: #71717a;
  --line: #e4e4e7;
  --line-2: #d4d4d8;
  --accent: #18181b;
  --accent-hover: #27272a;
  --accent-soft: #f4f4f5;
  --accent-ink: #18181b;
  --accent-text: #ffffff;
  --link: #18181b;
  --ok: #15803d;
  --ok-soft: #f0fdf4;
  --warn: #b45309;
  --warn-soft: #fffbeb;
  --err: #b91c1c;
  --err-soft: #fef2f2;
  --info: #3f3f46;
  --info-soft: #f4f4f5;
  --code: #f4f4f5;
  --price: #09090b;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, .04);
  --shadow: 0 1px 2px rgba(0, 0, 0, .04), 0 2px 8px rgba(0, 0, 0, .04);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, .08);
  --radius: 12px;
  --radius-sm: 8px;
  --sidebar: 232px;
  --font-head: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --blue: #1d4ed8;
  --blue-soft: #eff6ff;
  --ph-fg: 42%; --ph-bg: 93%; --ph-hi: 98%; --ph-sat: 8%;
  --logo-bg: #18181b; --logo-fg: #ffffff; --logo-leg: #a3e635;
  --mono: ui-monospace, SFMono-Regular, "JetBrains Mono", Menlo, Consolas, monospace;
}
/* Theme tokens (palette, dark mode, accent) are written into each page by
   the server (internal/web/theme.go); the values above are the fallback. */

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 15px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--link); text-decoration: none; font-weight: 500; }
a:hover { text-decoration: underline; text-underline-offset: 3px; }
img { max-width: 100%; }
h1 { font-size: 22px; line-height: 1.3; margin: 0 0 16px; letter-spacing: -.01em; }
h2 { font-size: 17px; margin: 24px 0 12px; letter-spacing: -.01em; }
h3 { font-size: 15px; margin: 16px 0 8px; }
p { margin: 0 0 10px; }
.ic { width: 18px; height: 18px; flex: none; stroke: currentColor; fill: none; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; vertical-align: -3px; }
.ic.lg { width: 22px; height: 22px; }
.muted { color: var(--muted); font-size: 13px; }
.wrap { max-width: 1120px; margin: 0 auto; padding: 0 16px; }
.row { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.spacer { flex: 1; }

/* ---------- top bar (storefront) ---------- */
.top {
  position: sticky; top: 0; z-index: 20;
  background: color-mix(in srgb, var(--card) 86%, transparent);
  backdrop-filter: saturate(160%) blur(12px);
  -webkit-backdrop-filter: saturate(160%) blur(12px);
  border-bottom: 1px solid var(--line);
}
.top .row { min-height: 60px; flex-wrap: nowrap; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 700; font-size: 17px; color: var(--text); white-space: nowrap; }
.brand:hover { text-decoration: none; }
.logo {
  width: 32px; height: 32px; border-radius: 9px; display: grid; place-items: center; flex: none; overflow: hidden;
  background: var(--logo-bg); --k-fg: var(--logo-fg); --k-leg: var(--logo-leg);
}
.logo svg { width: 100%; height: 100%; display: block; }
.logo img { width: 100%; height: 100%; object-fit: cover; display: block; }
.logo:has(img) { background: none; }
nav.main { display: flex; gap: 4px; }
nav.main a {
  display: inline-flex; align-items: center; gap: 6px; padding: 7px 12px; border-radius: 9px;
  color: var(--text-2); font-size: 14px; white-space: nowrap;
}
nav.main a:hover { background: var(--bg-soft); text-decoration: none; }
nav.main a.on { background: var(--bg-soft); color: var(--text); }
main.page { padding-top: 24px; padding-bottom: 32px; min-height: calc(100vh - 160px); }
.foot { color: var(--muted); font-size: 13px; padding: 24px 16px 40px; display: flex; gap: 16px; flex-wrap: wrap; border-top: 1px solid var(--line); }

/* ---------- surfaces ---------- */
.card {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 20px; margin-bottom: 16px; box-shadow: var(--shadow-sm);
}
.card > h2:first-child, .card > h3:first-child { margin-top: 0; }
.card-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; margin-bottom: 14px; }
.card-head h2 { margin: 0; }
.notice {
  display: flex; gap: 10px; align-items: flex-start; border: 1px solid var(--line);
  background: var(--bg-soft); color: var(--text-2); padding: 12px 14px; margin-bottom: 16px;
  border-radius: var(--radius-sm); white-space: pre-wrap; font-size: 14px;
}
.flash { display: flex; gap: 10px; align-items: flex-start; padding: 12px 14px; border-radius: var(--radius-sm); margin-bottom: 16px; word-break: break-word; font-size: 14px; }
.flash.ok { background: var(--ok-soft); color: var(--ok); }
.flash.err { background: var(--err-soft); color: var(--err); }
.flash .ic { margin-top: 2px; }

/* ---------- forms ---------- */
form.stack { display: flex; flex-direction: column; gap: 14px; }
form.stack > button:not(.block) { align-self: flex-start; min-width: 96px; }
label { display: flex; flex-direction: column; gap: 6px; font-size: 13px; font-weight: 500; color: var(--text-2); }
label.check { flex-direction: row; align-items: center; gap: 8px; font-weight: 400; }
input, select, textarea {
  font: inherit; font-size: 14px; color: var(--text); background: var(--card);
  border: 1px solid var(--line-2); border-radius: var(--radius-sm); padding: 9px 12px; width: 100%;
  transition: border-color .15s, box-shadow .15s;
}
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--text-2); box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 14%, transparent); }
input:not([type=checkbox]):not([type=radio]):not([type=file]), select { height: 40px; }
input[type=file] { height: 40px; }
input[type=checkbox], input[type=radio] { width: 16px; height: 16px; accent-color: var(--accent); padding: 0; }
textarea { min-height: 120px; font-family: var(--mono); font-size: 13px; resize: vertical; }
button, .btn {
  font: inherit; font-size: 14px; font-weight: 600; cursor: pointer; border: 1px solid transparent;
  border-radius: var(--radius-sm); padding: 9px 16px; display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  background: var(--accent); color: var(--accent-text); transition: filter .15s, transform .05s, background .15s;
  white-space: nowrap; text-decoration: none;
}
button:hover, .btn:hover { background: var(--accent-hover); text-decoration: none; }
button:active, .btn:active { transform: translateY(1px); }
button:disabled { opacity: .5; cursor: not-allowed; }
button.secondary, .btn.secondary { background: var(--card); color: var(--text); border-color: var(--line-2); }
button.secondary:hover, .btn.secondary:hover { background: var(--bg-soft); }
button.danger, .btn.danger { background: var(--err); color: #fff; }
button.danger:hover, .btn.danger:hover { background: var(--err); opacity: .9; }
button.link:hover, button.ghost:hover { background: none; text-decoration: underline; }
button.link { background: none; color: var(--link); padding: 0; border: 0; font-weight: 500; }
button.ghost { background: none; color: var(--muted); border: 0; padding: 6px 8px; }
.btn.lg, button.lg { padding: 12px 20px; font-size: 15px; border-radius: 12px; }
.btn.block, button.block { width: 100%; }
form.inline { display: inline; }
.options { display: flex; flex-wrap: wrap; gap: 10px; }
.option {
  border: 1px solid var(--line-2); border-radius: var(--radius-sm); padding: 10px 14px; cursor: pointer;
  flex-direction: row; align-items: center; gap: 10px; font-weight: 400; color: var(--text); background: var(--card);
  transition: border-color .15s, box-shadow .15s, background .15s;
}
.option:hover { border-color: var(--text-2); }
.option:has(input:checked) { border-color: var(--accent); background: var(--card); box-shadow: 0 0 0 1px var(--accent); }
.option.disabled { opacity: .45; cursor: not-allowed; }
.option.sku { flex: 1 1 200px; align-items: flex-start; }
.option.sku .name { font-weight: 600; }
.qty { display: inline-flex; align-items: center; border: 1px solid var(--line-2); border-radius: var(--radius-sm); overflow: hidden; width: max-content; }
.qty button { background: var(--card); color: var(--text); border: 0; border-radius: 0; padding: 8px 14px; font-size: 16px; }
.qty button:hover { background: var(--bg-soft); }
.qty input { border: 0; border-radius: 0; width: 64px; text-align: center; box-shadow: none !important; }
.swatch { width: 14px; height: 14px; border-radius: 50%; display: inline-block; box-shadow: inset 0 0 0 1px rgba(0, 0, 0, .1); }
.field-label { font-size: 13px; font-weight: 500; color: var(--text-2); margin-bottom: 8px; }

/* ---------- code / secrets ---------- */
code, .secret { font-family: var(--mono); background: var(--code); padding: 2px 6px; border-radius: 6px; word-break: break-all; font-size: .92em; }
.secret-row { display: flex; gap: 8px; align-items: center; margin: 8px 0; flex-wrap: wrap; }
.secret-row .secret { flex: 1; min-width: 0; padding: 10px 12px; border: 1px dashed var(--line-2); font-size: 14px; }
pre { background: var(--code); padding: 12px; border-radius: var(--radius-sm); overflow-x: auto; font-size: 13px; white-space: pre-wrap; word-break: break-all; font-family: var(--mono); }

/* ---------- tables ---------- */
.table-wrap { overflow-x: auto; }
.card.table-wrap { padding: 6px 0; }
.card.table-wrap > h2 { padding: 10px 20px 0; }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { text-align: left; padding: 11px 14px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { color: var(--muted); font-weight: 500; font-size: 12px; text-transform: uppercase; letter-spacing: .04em; white-space: nowrap; background: var(--bg-soft); }
.card.table-wrap th:first-child, .card.table-wrap td:first-child { padding-left: 20px; }
.card.table-wrap th:last-child, .card.table-wrap td:last-child { padding-right: 20px; }
tr:last-child td { border-bottom: 0; }
td a { text-decoration: underline; text-decoration-color: var(--line-2); text-underline-offset: 3px; }
td a:hover { text-decoration-color: currentColor; }
tbody tr:hover td, table tr:hover td { background: color-mix(in srgb, var(--bg-soft) 60%, transparent); }
.badge {
  display: inline-flex; align-items: center; gap: 5px; padding: 2px 9px; border-radius: 999px; font-size: 12px; font-weight: 500;
  background: var(--bg-soft); color: var(--text-2); white-space: nowrap;
}
.badge::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: currentColor; opacity: .8; }
.badge.plain::before { display: none; }
.badge.pending { background: var(--warn-soft); color: var(--warn); }
.badge.paid, .badge.reserved, .badge.issued, .badge.replied { background: var(--blue-soft); color: var(--blue); }
.badge.delivered, .badge.available, .badge.activated, .badge.on { background: var(--ok-soft); color: var(--ok); }
.badge.failed, .badge.refunded, .badge.revoked, .badge.void { background: var(--err-soft); color: var(--err); }
.badge.expired, .badge.sold, .badge.closed { background: var(--bg-soft); color: var(--muted); }

/* ---------- stats ---------- */
.stats { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 14px; margin-bottom: 8px; }
.stat {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px 18px;
  box-shadow: var(--shadow-sm); display: flex; flex-direction: column; gap: 2px; position: relative;
}
.stat b { display: block; font-size: 24px; letter-spacing: -.02em; line-height: 1.3; }
.stat .stat-ic {
  position: absolute; right: 14px; top: 14px; width: 34px; height: 34px; border-radius: 10px;
  display: grid; place-items: center; background: var(--bg-soft); color: var(--text-2);
}
.stat.warn .stat-ic { background: var(--warn-soft); color: var(--warn); }
.stat.err .stat-ic { background: var(--err-soft); color: var(--err); }
.stat.ok .stat-ic { background: var(--ok-soft); color: var(--ok); }
.pager { display: flex; gap: 16px; justify-content: center; align-items: center; padding: 12px; font-size: 14px; }
.filters { display: flex; gap: 8px; flex-wrap: wrap; align-items: end; margin-bottom: 14px; }
.filters input, .filters select { width: auto; }
.two { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.fields { display: grid; grid-template-columns: repeat(auto-fill, minmax(210px, 1fr)); gap: 14px 16px; align-items: end; }
.fields .wide { grid-column: span 2; }
.fields > label.check, .fields > button, .filters > label.check { min-height: 40px; }
.fields > button { justify-self: start; }
.checks { display: flex; flex-wrap: wrap; gap: 10px 22px; }
.hint { font-weight: 400; color: var(--muted); }
.section { padding-top: 18px; margin-top: 4px; border-top: 1px solid var(--line); }
.section:first-of-type { border-top: 0; padding-top: 0; margin-top: 0; }
.section h3 { margin: 0 0 4px; font-size: 15px; }
.section > p.muted { margin: 0 0 12px; font-size: 13px; }
.form-foot { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; padding-top: 4px; }
.form-foot .muted { font-size: 13px; }
input[type=file] { padding: 6px; color: var(--muted); cursor: pointer; }
input[type=file]::file-selector-button {
  font: inherit; font-size: 13px; font-weight: 600; margin-right: 12px; padding: 6px 12px; cursor: pointer;
  border: 1px solid var(--line-2); border-radius: 8px; background: var(--bg-soft); color: var(--text);
}
input[type=file]::file-selector-button:hover { background: var(--line); }
.danger-zone { border-color: color-mix(in srgb, var(--err) 30%, var(--line)); display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.danger-zone h3 { margin: 0 0 2px; font-size: 15px; }
.danger-zone p { margin: 0; font-size: 13px; }
td.nowrap, td code { white-space: nowrap; word-break: normal; }
table.mid td { vertical-align: middle; }
.actions { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.seg { display: inline-flex; padding: 3px; gap: 2px; background: var(--bg-soft); border: 1px solid var(--line); border-radius: 10px; }
.seg a { padding: 5px 12px; border-radius: 7px; font-size: 13px; color: var(--text-2); text-decoration: none; }
.seg a:hover { color: var(--text); text-decoration: none; }
.seg a.on { background: var(--card); color: var(--text); font-weight: 600; box-shadow: var(--shadow-sm); }
.md { color: var(--text-2); }
.md p { margin: 0 0 10px; }
.md ul { padding-left: 20px; margin: 0 0 10px; }
.md h3, .md h4, .md h5 { color: var(--text); }
details summary { cursor: pointer; color: var(--text-2); font-size: 14px; font-weight: 500; }
.qr { width: 200px; height: 200px; background: #fff; padding: 10px; border-radius: 12px; border: 1px solid var(--line); }

/* bars (sales statistics) */
.bars { display: flex; flex-direction: column; gap: 6px; margin-top: 12px; }
.bar-row { display: grid; grid-template-columns: 56px 1fr minmax(130px, auto); gap: 10px; align-items: center; font-size: 13px; }
.bar-label { color: var(--muted); font-variant-numeric: tabular-nums; }
.bar-track { background: var(--bg-soft); border-radius: 6px; height: 16px; overflow: hidden; }
.bar-fill { display: block; height: 100%; background: var(--accent); border-radius: 6px; min-width: 2px; }
.bar-value { color: var(--muted); white-space: nowrap; font-variant-numeric: tabular-nums; }

/* ---------- storefront: home ---------- */
.hero {
  position: relative; overflow: hidden; border-radius: var(--radius); padding: 36px 28px; margin-bottom: 20px;
  background-color: var(--card); border: 1px solid var(--line);
  background-image: radial-gradient(var(--line) 1px, transparent 1px);
  background-size: 18px 18px; background-position: -9px -9px;
}
.hero > * { position: relative; }
.hero::before {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(90deg, var(--card) 30%, color-mix(in srgb, var(--card) 40%, transparent));
}
.hero h1 { font-size: 30px; letter-spacing: -.03em; margin-bottom: 6px; }
.hero p { color: var(--muted); margin: 0; max-width: 560px; }
.hero .search {
  margin-top: 20px; display: flex; flex-direction: row; align-items: center; gap: 8px; max-width: 440px;
  background: var(--card); border: 1px solid var(--line-2); border-radius: var(--radius-sm); padding: 0 12px; color: var(--muted);
  box-shadow: var(--shadow-sm);
}
.hero .search:focus-within { border-color: var(--text-2); box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 12%, transparent); }
.hero .search input { background: transparent; border: 0; padding: 11px 0; box-shadow: none; }
.chips { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 8px; }
.chip {
  padding: 6px 14px; border-radius: 999px; background: var(--card); border: 1px solid var(--line);
  color: var(--text-2); font-size: 13px; font-weight: 500;
}
.chip:hover { border-color: var(--text-2); color: var(--text); text-decoration: none; }
.section-title { display: flex; align-items: center; gap: 10px; margin: 28px 0 14px; font-size: 18px; }
.section-title .count { color: var(--muted); font-size: 13px; font-weight: 400; }
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: 16px; }
.product-card {
  display: flex; flex-direction: column; color: var(--text); background: var(--card);
  border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden;
  box-shadow: var(--shadow-sm); transition: transform .18s, box-shadow .18s, border-color .18s;
}
.product-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg); border-color: var(--line-2); text-decoration: none; }
.cover { aspect-ratio: 16 / 9; width: 100%; object-fit: cover; display: block; background: var(--bg-soft); }
.cover.ph {
  display: grid; place-items: center; font-size: 30px; font-weight: 700; letter-spacing: -.02em;
  color: hsl(var(--ph-h, var(--h, 240)) var(--ph-sat) var(--ph-fg));
  background:
    radial-gradient(circle at 30% 20%, hsl(var(--ph-h, var(--h, 240)) var(--ph-sat) var(--ph-hi)), transparent 60%),
    hsl(var(--ph-h, var(--h, 240)) var(--ph-sat) var(--ph-bg));
}
.product-card .body { padding: 14px 16px 16px; display: flex; flex-direction: column; gap: 8px; flex: 1; }
.product-card .title { font-weight: 600; font-size: 15px; line-height: 1.4; }
.product-card .meta { display: flex; align-items: center; justify-content: space-between; gap: 8px; margin-top: auto; }
.price { color: var(--price); font-weight: 700; font-variant-numeric: tabular-nums; }
.price.big { font-size: 26px; letter-spacing: -.02em; }
.price small { font-size: 12px; font-weight: 500; color: var(--muted); }
.stock { font-size: 12px; color: var(--muted); }
.stock.out { color: var(--err); }
.empty { text-align: center; padding: 48px 16px; color: var(--muted); }
.empty .ic { width: 40px; height: 40px; margin-bottom: 8px; opacity: .6; }

/* ---------- storefront: product ---------- */
.product-layout {
  display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(320px, 1fr); gap: 20px; align-items: start;
  grid-template-areas: "info panel" "desc panel"; grid-template-rows: auto 1fr;
}
.product-layout > .card { margin-bottom: 0; }
.product-layout .info { grid-area: info; }
.product-layout .desc { grid-area: desc; align-self: start; }
.product-layout .info .cover { border-radius: var(--radius-sm); margin-bottom: 16px; }
.info-text h1 { margin: 0 0 6px; }
.info-price { font-size: 20px; }
.desc-title { font-size: 15px; margin: 0 0 10px; }
.order-panel { grid-area: panel; position: sticky; top: 80px; }
.buy-bar { display: flex; flex-direction: column; gap: 12px; }
.total-line { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; padding: 14px 0 4px; border-top: 1px dashed var(--line-2); }
.crumbs { font-size: 13px; color: var(--muted); margin-bottom: 14px; display: flex; gap: 6px; align-items: center; }
.crumbs a { color: var(--muted); }

/* ---------- storefront: pay / order ---------- */
.narrow { max-width: 640px; margin: 0 auto; }
.steps { display: flex; align-items: center; gap: 0; margin: 4px 0 22px; }
.step { display: flex; align-items: center; gap: 8px; color: var(--muted); font-size: 13px; white-space: nowrap; }
.step .dot { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; background: var(--bg-soft); border: 1px solid var(--line-2); font-size: 12px; font-weight: 700; }
.step.done { color: var(--text); }
.step.done .dot { background: var(--accent); border-color: var(--accent); color: var(--accent-text); }
.step.now { color: var(--text); font-weight: 600; }
.step.now .dot { background: var(--card); border: 2px solid var(--accent); color: var(--accent-ink); box-shadow: 0 0 0 4px color-mix(in srgb, var(--accent) 12%, transparent); }
.step-line { flex: 1; height: 2px; background: var(--line); margin: 0 10px; min-width: 16px; }
.step-line.done { background: var(--accent); }
.status-hero { text-align: center; padding: 8px 0 4px; }
.status-hero .icon { width: 56px; height: 56px; border-radius: 50%; display: grid; place-items: center; margin: 0 auto 10px; background: var(--bg-soft); color: var(--text-2); }
.status-hero .icon .ic { width: 28px; height: 28px; }
.status-hero.ok .icon { background: var(--ok-soft); color: var(--ok); }
.status-hero.warn .icon { background: var(--warn-soft); color: var(--warn); }
.status-hero.err .icon { background: var(--err-soft); color: var(--err); }
.status-hero h1 { margin-bottom: 4px; }
.kv { display: grid; grid-template-columns: auto 1fr; gap: 8px 16px; font-size: 14px; margin: 14px 0; }
.kv dt { color: var(--muted); }
.kv dd { margin: 0; text-align: right; word-break: break-all; }
.countdown { font-variant-numeric: tabular-nums; font-weight: 600; color: var(--warn); }
.pay-box { text-align: center; padding: 6px 0; }
.amount-tag { display: inline-flex; align-items: baseline; gap: 8px; padding: 10px 18px; border-radius: var(--radius-sm); background: var(--bg-soft); }
.auth-card { max-width: 400px; margin: 48px auto; }
.auth-card .brand { justify-content: center; margin-bottom: 18px; font-size: 19px; }

/* ---------- admin shell ---------- */
body.admin { background: var(--bg); }
.shell { display: grid; grid-template-columns: var(--sidebar) minmax(0, 1fr); min-height: 100vh; background: linear-gradient(to right, var(--card) calc(var(--sidebar) - 1px), var(--line) calc(var(--sidebar) - 1px), var(--line) var(--sidebar), transparent var(--sidebar)); }
.sidebar {
  position: sticky; top: 0; height: 100vh; overflow-y: auto; background: var(--card);
  border-right: 1px solid var(--line); padding: 16px 12px; display: flex; flex-direction: column; gap: 4px;
}
.sidebar .brand { padding: 4px 8px 14px; font-size: 16px; }
.nav-group { font-size: 11px; font-weight: 600; letter-spacing: .08em; color: var(--muted); padding: 14px 10px 6px; text-transform: uppercase; }
.nav-link {
  display: flex; align-items: center; gap: 10px; padding: 8px 10px; border-radius: 9px;
  color: var(--text-2); font-size: 14px; font-weight: 500;
}
.nav-link:hover { background: var(--bg-soft); text-decoration: none; }
.nav-link.on { background: var(--bg-soft); color: var(--text); font-weight: 600; box-shadow: inset 2px 0 0 var(--accent); }
.nav-link .ic { width: 17px; height: 17px; }
.sidebar .bottom { margin-top: auto; padding-top: 12px; border-top: 1px solid var(--line); }
.sidebar .bottom button { width: 100%; justify-content: flex-start; gap: 10px; background: none; color: var(--muted); border: 0; padding: 8px 10px; font-weight: 500; }
.sidebar .bottom button:hover { background: var(--bg-soft); color: var(--err); filter: none; }
.content { padding: 28px 32px 48px; max-width: 1240px; width: 100%; }
.page-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; margin-bottom: 18px; }
.page-head h1 { margin: 0; }
.admin .content > h1:first-child, .admin .content > .flash + h1 { margin-bottom: 18px; }

.mbar, .scrim { display: none; }

@media (max-width: 900px) {
  .product-layout { grid-template-columns: minmax(0, 1fr); grid-template-areas: "info" "panel" "desc"; grid-template-rows: auto; gap: 14px; }
  .order-panel { position: static; }
  .table-wrap table { min-width: 620px; }

  /* admin: top bar + slide-out menu */
  .shell { display: block; background: none; }
  .mbar {
    display: flex; align-items: center; gap: 6px; position: sticky; top: 0; z-index: 30; height: 56px;
    padding: 0 8px; padding-top: env(safe-area-inset-top); box-sizing: content-box;
    background: color-mix(in srgb, var(--card) 92%, transparent); backdrop-filter: saturate(160%) blur(12px);
    -webkit-backdrop-filter: saturate(160%) blur(12px); border-bottom: 1px solid var(--line);
  }
  .mbar-btn { width: 40px; height: 40px; display: grid; place-items: center; border-radius: 10px; color: var(--text); cursor: pointer; flex: none; }
  .mbar-btn:hover, .mbar-btn:active { background: var(--bg-soft); text-decoration: none; }
  .mbar-btn .ic { width: 20px; height: 20px; }
  .mbar-title { flex: 1; min-width: 0; display: flex; align-items: center; gap: 10px; color: var(--text); font-weight: 600; font-size: 16px; }
  .mbar-title:hover { text-decoration: none; }
  .mbar-title .logo { width: 26px; height: 26px; border-radius: 7px; }
  .mbar-title span:not(.logo) { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
  .sidebar {
    position: fixed; z-index: 50; top: 0; bottom: 0; left: 0; width: min(280px, 84vw); height: auto;
    padding: calc(16px + env(safe-area-inset-top)) 12px calc(16px + env(safe-area-inset-bottom));
    transform: translateX(-100%); transition: transform .22s ease; box-shadow: none; overscroll-behavior: contain;
  }
  .scrim { display: block; position: fixed; inset: 0; z-index: 40; background: rgba(0, 0, 0, .4); opacity: 0; pointer-events: none; transition: opacity .22s; }
  .nav-toggle:checked ~ .sidebar { transform: none; box-shadow: var(--shadow-lg); }
  .nav-toggle:checked ~ .scrim { opacity: 1; pointer-events: auto; }
  .nav-link { padding: 10px 10px; }
  .content { padding: 18px 16px calc(40px + env(safe-area-inset-bottom)); }
  .admin .content > .page-head h1, .admin .content > h1:first-child { font-size: 20px; }
}
@media (max-width: 640px) {
  /* 16px stops iOS Safari from zooming into a focused field */
  input:not([type=checkbox]):not([type=radio]), select, textarea { font-size: 16px; }
  .two { grid-template-columns: 1fr; }
  .wrap { padding-left: 14px; padding-right: 14px; }

  /* storefront */
  .grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
  .product-card .body { padding: 10px 12px 12px; gap: 4px; }
  .product-card .title { font-size: 14px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
  .product-card .muted { font-size: 12px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
  .product-card .meta { flex-direction: column; align-items: flex-start; gap: 4px; }
  .product-card .cover { aspect-ratio: 4 / 3; }
  .product-card .cover.ph { font-size: 24px; }
  .product-layout .info { display: grid; grid-template-columns: 88px minmax(0, 1fr); gap: 14px; align-items: center; }
  .product-layout .info .cover { margin: 0; aspect-ratio: 1; border-radius: var(--radius-sm); font-size: 28px; }
  .info-text h1 { font-size: 18px; }
  .info-price { font-size: 17px; }
  .buy-bar {
    position: sticky; bottom: 0; z-index: 5; margin: 0 -16px -16px; padding: 12px 16px calc(12px + env(safe-area-inset-bottom));
    background: var(--card); border-top: 1px solid var(--line); border-radius: 0 0 var(--radius) var(--radius);
    flex-direction: row; align-items: center; gap: 12px;
  }
  .buy-bar .total-line { flex-direction: column; align-items: flex-start; gap: 0; padding: 0; border: 0; margin: 0; min-width: 0; }
  .buy-bar .total-line .muted { font-size: 12px; }
  .buy-bar .price.big { font-size: 20px; }
  .buy-bar button { flex: 1; width: auto; }
  .order-panel + p, .order-panel form > p.muted:last-child { font-size: 12px; }

  /* admin: two stats per row, tables as cards */
  .stats { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
  .stat { padding: 12px 14px; }
  .stat b { font-size: 19px; }
  .stat .stat-ic { width: 28px; height: 28px; right: 10px; top: 10px; border-radius: 8px; }
  .stat .stat-ic .ic { width: 15px; height: 15px; }
  .stat > .muted { font-size: 12px; padding-right: 30px; }
  table.rt, table.rt tbody, table.rt tr, table.rt td { display: block; width: 100%; }
  table.rt { min-width: 0 !important; }
  table.rt tr:has(> th) { display: none; }
  table.rt tr { padding: 12px 16px; border-bottom: 1px solid var(--line); }
  table.rt tr:last-child { border-bottom: 0; }
  table.rt td { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; padding: 3px 0 !important; border: 0; text-align: right; min-width: 0; overflow-wrap: anywhere; }
  table.rt td::before { content: attr(data-label); color: var(--muted); font-size: 13px; text-align: left; flex: none; }
  table.rt td[data-label=""]::before { display: none; }
  table.rt td[data-label=""] { justify-content: flex-end; }
  table.rt td:first-child { justify-content: flex-start; text-align: left; font-weight: 600; padding-bottom: 6px !important; }
  table.rt td:first-child::before { display: none; }
  table.rt td[colspan] { justify-content: center; text-align: center; font-weight: 400; }
  table.rt tr:hover td { background: none; }
  table.rt .cv { min-width: 0; }
  table.rt td.blank { display: none; }
  .page-head .seg { max-width: 100%; overflow-x: auto; scrollbar-width: none; }
  .seg a { white-space: nowrap; }
  .theme-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
  .theme-mock { height: 96px; padding: 8px; }
  table.rt td:first-child .cv { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; }
  table.rt td:first-child br { display: none; }
  .filters > input:not([type=checkbox]), .filters > label:has(input:not([type=checkbox])) { flex: 1 1 100%; }
  .filters > input:not([type=checkbox]) { width: 100%; }
  .filters > select, .filters > label:has(select) { flex: 1 1 0; min-width: 0; }
  .filters > label > select { width: 100%; }
  .card.table-wrap:has(table.rt) { overflow: visible; }
  .fields .wide { grid-column: auto; }
  th, td { padding: 9px 10px; }
  h1 { font-size: 20px; }
  .hero { padding: 24px 18px; border-radius: 16px; }
  .hero h1 { font-size: 23px; }
  nav.main { gap: 2px; }
  nav.main a { padding: 7px 7px; gap: 4px; font-size: 13px; }
  .top .brand span:not(.logo) { max-width: 40vw; overflow: hidden; text-overflow: ellipsis; }
  .top .brand { min-width: 0; flex-shrink: 1; }
  nav.main { flex-shrink: 0; }
  nav.main a.admin-entry span { display: none; }
  .bar-row { grid-template-columns: 44px 1fr; }
  .bar-value { display: none; }
  .card { padding: 16px; }
  .card.table-wrap { padding: 4px 0; }
  .steps .step span.label { display: none; }
}

/* upgrade page */
.version-row { display: flex; align-items: center; gap: 28px; flex-wrap: wrap; }
.version-row > div { display: flex; flex-direction: column; gap: 2px; }
.version-row b { font-size: 26px; letter-spacing: -.02em; font-family: var(--mono); }
.version-row .arrow { transform: rotate(180deg); color: var(--muted); width: 20px; height: 20px; }
.ok-line { display: flex; align-items: center; gap: 8px; color: var(--ok); margin: 0; font-weight: 500; }
.upgrading { display: flex; gap: 14px; align-items: flex-start; }
.upgrading p { margin: 4px 0 0; font-size: 13px; }
.spinner { width: 20px; height: 20px; border-radius: 50%; border: 2px solid var(--line-2); border-top-color: var(--accent); animation: spin .8s linear infinite; flex: none; margin-top: 2px; }
@keyframes spin { to { transform: rotate(360deg); } }
.flash.info { background: var(--bg-soft); color: var(--text); border: 1px solid var(--line); }
.update-banner { text-decoration: none; align-items: center; }
.update-banner:hover { text-decoration: none; border-color: var(--line-2); }

/* sign-in with external accounts */
.divider { display: flex; align-items: center; gap: 12px; color: var(--muted); font-size: 13px; margin: 18px 0 14px; }
.divider::before, .divider::after { content: ""; flex: 1; height: 1px; background: var(--line); }
.btn.sso { gap: 10px; }
.ic.sso-ic { width: 18px; height: 18px; }
.sso-list { display: flex; flex-direction: column; gap: 10px; }

/* headings follow the theme's heading font */
h1, h2, h3, .brand, .hero h1, .price.big { font-family: var(--font-head); }

/* theme picker (settings) */
.theme-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(168px, 1fr)); gap: 12px; }
.theme-card { display: flex; flex-direction: column; gap: 8px; cursor: pointer; font-weight: 400; color: var(--text); position: relative; }
.theme-card input { position: absolute; opacity: 0; pointer-events: none; }
.theme-mock {
  display: flex; flex-direction: column; gap: 7px; padding: 10px; height: 112px; border-radius: 12px;
  background: var(--m-bg); border: 1px solid var(--line-2); transition: box-shadow .15s, border-color .15s;
}
.theme-card:hover .theme-mock { border-color: var(--text-2); }
.theme-card input:checked + .theme-mock { border-color: var(--accent); box-shadow: 0 0 0 2px var(--accent); }
.theme-card input:focus-visible + .theme-mock { outline: 2px solid var(--accent); outline-offset: 3px; }
.m-top { display: flex; align-items: center; gap: 6px; }
.m-logo { width: 16px; height: 16px; border-radius: 5px; background: var(--m-logo); --k-fg: var(--m-logo-fg); --k-leg: var(--m-leg); display: block; }
.m-logo svg { width: 100%; height: 100%; display: block; }
.m-title { font: 700 11px/1 var(--m-head); color: var(--m-text); }
.m-cards { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; flex: 1; }
.m-card { background: var(--m-card); border: 1px solid var(--m-line); border-radius: calc(var(--m-r) * .5); padding: 5px; display: flex; flex-direction: column; gap: 4px; }
.m-card i { flex: 1; border-radius: calc(var(--m-r) * .3); background: var(--m-line); }
.m-card b { height: 4px; width: 60%; border-radius: 2px; background: var(--m-muted); opacity: .6; }
.m-btn { align-self: flex-start; font-size: 10px; font-weight: 600; line-height: 1; padding: 5px 9px; border-radius: calc(var(--m-r) * .5); background: var(--m-accent); color: var(--m-at); }
.theme-name { display: flex; flex-direction: column; line-height: 1.35; }
.theme-name b { font-size: 14px; }
.theme-name .muted { font-size: 12px; }
.swatch.auto { background: conic-gradient(#18181b 0 25%, #4f46e5 0 50%, #059669 0 75%, #e11d48 0); }

@media (max-width: 379px) {
  nav.main a span { display: none; }
  nav.main a { padding: 8px 9px; }
}
@media (max-width: 359px) {
  .grid { grid-template-columns: minmax(0, 1fr); }
}

/* inline row actions (admin accounts) */
.row-actions { display: inline-block; text-align: left; }
.row-actions > summary { list-style: none; color: var(--link); font-weight: 500; font-size: 14px; }
.row-actions > summary::-webkit-details-marker { display: none; }
.row-actions[open] > summary { margin-bottom: 10px; }
.row-actions-body { display: flex; flex-direction: column; gap: 16px; min-width: 240px; padding: 12px; border: 1px solid var(--line); border-radius: var(--radius-sm); background: var(--bg-soft); }
.row-actions-body form.stack { gap: 10px; }
.cover-field { display: flex; gap: 16px; align-items: flex-end; }
.cover-thumb { width: 96px; height: 72px; object-fit: cover; border-radius: var(--radius-sm); border: 1px solid var(--line); flex: none; }
@media (max-width: 640px) { .cover-field { flex-direction: column; align-items: stretch; } }