/* BookVault Catalog Explorer — demo viewer styling (Hametachnet).
   Dark is the default theme; [data-theme="light"] overrides the tokens.
   All dynamic styling is done via JS/CSSOM or SVG geometry attributes so the
   page stays within a strict style-src 'self' Content-Security-Policy. */
:root {
  --bg: #0f1420;
  --bg-2: #0b0f19;
  --panel: #171d2e;
  --panel-2: #1f2740;
  --panel-3: #262f4d;
  --ink: #e8ecf6;
  --ink-2: #c4ccde;
  --muted: #9aa6c2;
  --line: #2b3550;
  --line-2: #394470;
  --accent: #6c8cff;
  --accent-2: #4ad6b4;
  --accent-3: #c88cff;
  --warn: #ffd166;
  --danger: #ff7a85;
  --star: #ffcc57;
  --radius: 14px;
  --radius-sm: 10px;
  --shadow: 0 10px 30px rgba(0,0,0,.35);
  --shadow-sm: 0 4px 14px rgba(0,0,0,.25);
  --grad: linear-gradient(135deg, var(--accent), var(--accent-2));
  --grad-soft: linear-gradient(180deg, var(--panel-2), var(--panel));
  --ease: cubic-bezier(.4,0,.2,1);
}
:root[data-theme="light"] {
  --bg: #eef1f8;
  --bg-2: #e4e8f3;
  --panel: #ffffff;
  --panel-2: #f3f5fb;
  --panel-3: #e9edf7;
  --ink: #141a2b;
  --ink-2: #2d3650;
  --muted: #5c6680;
  --line: #d7deec;
  --line-2: #c2cbe0;
  --accent: #3a5bef;
  --accent-2: #0fae8c;
  --accent-3: #9a4fe0;
  --warn: #b7791f;
  --danger: #d6455a;
  --star: #e0a21a;
  --shadow: 0 10px 30px rgba(31,45,80,.14);
  --shadow-sm: 0 4px 14px rgba(31,45,80,.10);
  color-scheme: light;
}
* { box-sizing: border-box; }
html { color-scheme: dark; }
:root[data-theme="light"] html,
html[data-theme="light"] { color-scheme: light; }
body {
  margin: 0;
  font: 15px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background:
    radial-gradient(1200px 600px at 80% -10%, color-mix(in srgb, var(--accent) 16%, var(--bg)) 0%, var(--bg) 55%) fixed,
    var(--bg);
  color: var(--ink);
  -webkit-font-smoothing: antialiased;
  padding: env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left);
}
a { color: var(--accent); }
.wrap { max-width: 1140px; margin: 0 auto; padding: 24px 20px 96px; }

.release-note { margin: 0 0 6px; font-size: .72rem; color: var(--muted); }
.release-note code { color: var(--accent-2); }

/* ---------- header ---------- */
header.site {
  display: flex; align-items: center; gap: 16px; flex-wrap: wrap;
  margin-bottom: 6px;
}
.logo {
  width: 46px; height: 46px; flex: 0 0 auto;
  border-radius: 12px; background: var(--grad);
  display: grid; place-items: center; box-shadow: var(--shadow-sm);
}
.brand h1 { margin: 0; font-size: 1.4rem; letter-spacing: .2px; line-height: 1.15; }
.brand p { margin: 2px 0 0; color: var(--muted); font-size: .86rem; }
.brand-sub { color: var(--muted); font-weight: 500; }
.header-tools { margin-left: auto; display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.pill {
  align-self: flex-start;
  border: 1px solid var(--line); border-radius: 999px;
  padding: 6px 12px; color: var(--muted); font-size: .76rem;
  background: var(--panel); display: inline-flex; align-items: center; gap: 6px;
}
.pill strong { color: var(--accent-2); }
.pill .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--accent-2); box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent-2) 22%, transparent); }

.icon-btn {
  display: inline-grid; place-items: center; min-width: 40px; min-height: 40px;
  border-radius: 10px; border: 1px solid var(--line); background: var(--panel);
  color: var(--ink); cursor: pointer; transition: transform .12s var(--ease), border-color .12s var(--ease), background .12s var(--ease);
}
.icon-btn:hover { border-color: var(--accent); transform: translateY(-1px); }
.icon-btn:active { transform: translateY(0); }
.icon-btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.icon-btn svg { display: block; }
.icon-btn .moon { display: none; }
:root[data-theme="light"] .icon-btn .sun { display: none; }
:root[data-theme="light"] .icon-btn .moon { display: block; }

.build-note {
  margin: 12px 0 0; font-size: .82rem; color: var(--muted);
  border: 1px dashed var(--line); border-radius: 10px; padding: 9px 13px;
}
.build-note a { color: var(--accent); }

/* ---------- KPI stats ---------- */
.stats {
  display: grid; grid-template-columns: repeat(5, 1fr); gap: 14px;
  margin: 20px 0;
}
.stat {
  position: relative; overflow: hidden;
  background: var(--grad-soft);
  border: 1px solid var(--line); border-radius: var(--radius);
  padding: 14px 16px; box-shadow: var(--shadow-sm);
  transition: transform .14s var(--ease), border-color .14s var(--ease), box-shadow .14s var(--ease);
}
.stat:hover { transform: translateY(-2px); border-color: var(--line-2); box-shadow: var(--shadow); }
.stat::after {
  content: ""; position: absolute; inset: 0 0 auto auto; width: 70px; height: 70px;
  background: radial-gradient(circle at 70% 20%, color-mix(in srgb, var(--accent) 40%, transparent), transparent 70%);
  opacity: .5; pointer-events: none;
}
.stat .k { color: var(--muted); font-size: .72rem; text-transform: uppercase; letter-spacing: .08em; display: flex; align-items: center; gap: 6px; }
.stat .k svg { opacity: .9; color: var(--accent-2); }
.stat .v { font-size: 1.55rem; font-weight: 700; margin-top: 6px; font-variant-numeric: tabular-nums; }
.stat .v small { font-size: .9rem; color: var(--muted); font-weight: 500; }

/* ---------- panels / charts ---------- */
.section-title { display: flex; align-items: center; gap: 10px; margin: 26px 0 12px; }
.section-title h2 { margin: 0; font-size: 1.02rem; }
.section-title .hint { color: var(--muted); font-size: .78rem; margin-left: auto; }

.charts {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px;
}
.chart-card {
  background: var(--panel); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 14px 16px 10px; box-shadow: var(--shadow-sm);
  min-width: 0;
}
.chart-card h3 { margin: 0 0 2px; font-size: .9rem; display: flex; align-items: center; gap: 8px; }
.chart-card h3 svg { flex: 0 0 auto; color: var(--accent); }
.chart-card .sub { margin: 0 0 8px; color: var(--muted); font-size: .74rem; }
.chart-card [role="img"] svg { width: 100%; height: auto; display: block; overflow: visible; }
.chart-bar { transition: width .5s var(--ease), height .5s var(--ease), y .5s var(--ease); }
.fill-accent { fill: var(--accent); }
.fill-accent-2 { fill: var(--accent-2); }
.fill-accent-3 { fill: var(--accent-3); }
.fill-star { fill: var(--star); }
.fill-track { fill: color-mix(in srgb, var(--line) 70%, transparent); }
.bar-hot { fill: var(--accent); cursor: default; }
.chart-bar:hover { opacity: .82; }
.chart-tip text { fill: var(--ink); font-size: 10px; }
.chart-label { fill: var(--muted); font-size: 10px; }
.chart-value { fill: var(--ink-2); font-size: 10px; font-variant-numeric: tabular-nums; }
.axis-line { stroke: var(--line); stroke-width: 1; }
.bin-control { display: flex; align-items: center; gap: 10px; margin: 2px 0 8px; }
.bin-control label { font-size: .74rem; color: var(--muted); }
.bin-control output { font-size: .74rem; color: var(--accent-2); font-variant-numeric: tabular-nums; min-width: 1.4em; }

/* ---------- controls / toolbar ---------- */
.controls {
  display: flex; gap: 10px; flex-wrap: wrap; align-items: center;
  background: var(--panel); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 12px; margin-bottom: 12px;
  position: sticky; top: 0; z-index: 30;
  backdrop-filter: blur(6px);
}
.search { position: relative; flex: 1 1 240px; min-width: 180px; }
.search svg { position: absolute; left: 12px; top: 50%; transform: translateY(-50%); opacity: .6; pointer-events: none; }
.search input {
  width: 100%; padding: 11px 12px 11px 38px;
  background: var(--bg); border: 1px solid var(--line); border-radius: 10px;
  color: var(--ink); font-size: .95rem;
}
input, select, button { font-family: inherit; }
.search input:focus, select:focus, input:focus { border-color: var(--accent); outline: 2px solid color-mix(in srgb, var(--accent) 35%, transparent); outline-offset: 0; }
select {
  padding: 11px 12px; background: var(--bg); color: var(--ink);
  border: 1px solid var(--line); border-radius: 10px; font-size: .92rem; min-width: 150px;
}
.count { color: var(--muted); font-size: .85rem; margin-left: auto; white-space: nowrap; }

.btn {
  display: inline-flex; align-items: center; gap: 7px; justify-content: center;
  min-height: 40px; padding: 9px 14px; border-radius: 10px;
  border: 1px solid var(--line); background: var(--panel-2); color: var(--ink);
  font-size: .88rem; cursor: pointer; text-decoration: none;
  transition: transform .12s var(--ease), border-color .12s var(--ease), background .12s var(--ease);
}
.btn:hover { border-color: var(--accent); transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.btn svg { flex: 0 0 auto; }
.btn.primary { background: var(--grad); border-color: transparent; color: #0b1020; font-weight: 600; }
:root[data-theme="light"] .btn.primary { color: #fff; }
.btn.ghost { background: transparent; }
.btn[aria-pressed="true"] { border-color: var(--accent); background: color-mix(in srgb, var(--accent) 18%, var(--panel-2)); }

.filter-panel {
  display: flex; gap: 14px 20px; flex-wrap: wrap; align-items: flex-end;
  background: var(--panel); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 14px 16px; margin-bottom: 12px;
}
.field { display: flex; flex-direction: column; gap: 6px; min-width: 0; }
.field > label, .field .flabel { font-size: .74rem; color: var(--muted); text-transform: uppercase; letter-spacing: .06em; display: flex; justify-content: space-between; gap: 10px; }
.field .flabel b { color: var(--accent-2); font-weight: 600; font-variant-numeric: tabular-nums; }
/* Two independent, fully-reachable range sliders (min + max). */
.range-stack { display: grid; grid-template-columns: auto 1fr; align-items: center; gap: 6px 10px; flex: 1 1 220px; min-width: 190px; }
.range-stack label { font-size: .72rem; color: var(--muted); }
.range-stack input[type="range"] {
  width: 100%; margin: 0; height: 26px; background: none; -webkit-appearance: none; appearance: none; cursor: pointer;
}
.range-stack input[type="range"]::-webkit-slider-runnable-track { height: 5px; border-radius: 999px; background: var(--line); }
.range-stack input[type="range"]::-moz-range-track { height: 5px; border-radius: 999px; background: var(--line); }
.range-stack input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none; appearance: none; width: 18px; height: 18px; margin-top: -7px; border-radius: 50%;
  background: var(--accent); border: 2px solid var(--panel); box-shadow: var(--shadow-sm);
}
.range-stack input[type="range"]::-moz-range-thumb {
  width: 18px; height: 18px; border-radius: 50%; background: var(--accent); border: 2px solid var(--panel);
}
.range-stack input[type="range"]:focus-visible { outline: 2px solid var(--accent); outline-offset: 4px; border-radius: 4px; }
.rating-filter { display: flex; gap: 4px; align-items: center; }
.rating-filter button {
  min-width: 34px; min-height: 34px; border-radius: 8px; border: 1px solid var(--line);
  background: var(--panel-2); color: var(--muted); cursor: pointer; font-size: .9rem;
}
.rating-filter button[aria-pressed="true"] { color: var(--star); border-color: var(--star); background: color-mix(in srgb, var(--star) 14%, var(--panel-2)); }
.rating-filter button:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.chips { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 12px; min-height: 0; }
.chip {
  display: inline-flex; align-items: center; gap: 7px; font-size: .78rem;
  background: color-mix(in srgb, var(--accent) 14%, var(--panel)); color: var(--ink);
  border: 1px solid color-mix(in srgb, var(--accent) 35%, var(--line)); border-radius: 999px; padding: 4px 6px 4px 12px;
}
.chip button { border: 0; background: color-mix(in srgb, var(--accent) 25%, transparent); color: var(--ink); width: 20px; height: 20px; border-radius: 50%; cursor: pointer; display: grid; place-items: center; line-height: 1; }
.chip button:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }

/* column visibility menu */
.menu-wrap { position: relative; }
.menu {
  position: absolute; right: 0; top: calc(100% + 6px); z-index: 50;
  background: var(--panel); border: 1px solid var(--line-2); border-radius: 12px;
  box-shadow: var(--shadow); padding: 8px; min-width: 190px;
}
.menu[hidden] { display: none; }
@media (max-width: 760px) { .menu { left: 0; right: auto; max-width: calc(100vw - 28px); } }
.menu .mtitle { font-size: .72rem; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); padding: 4px 8px; }
.menu label { display: flex; align-items: center; gap: 9px; padding: 7px 8px; border-radius: 8px; font-size: .88rem; cursor: pointer; }
.menu label:hover { background: var(--panel-2); }
.menu input[type="checkbox"] { width: 16px; height: 16px; accent-color: var(--accent); }

/* saved filters */
.saved { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.saved input { padding: 9px 11px; background: var(--bg); border: 1px solid var(--line); border-radius: 10px; color: var(--ink); font-size: .88rem; min-width: 130px; min-height: 40px; }
.saved select { min-width: 150px; min-height: 40px; }

/* ---------- table ---------- */
.view-area { position: relative; }
.table-card {
  background: var(--panel); border: 1px solid var(--line);
  border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-sm);
}
.table-card[hidden] { display: none; }
.table-scroll { overflow-x: auto; }
.table-scroll:focus-visible { outline: 2px solid var(--accent); outline-offset: -3px; }
table { width: 100%; border-collapse: collapse; }
thead th {
  position: sticky; top: 0; background: var(--panel-2); color: var(--ink);
  text-align: left; font-size: .76rem; text-transform: uppercase; letter-spacing: .06em;
  padding: 0; border-bottom: 1px solid var(--line);
  cursor: pointer; user-select: none; white-space: nowrap;
}
thead button { font: inherit; text-transform: inherit; letter-spacing: inherit; text-align: inherit; color: inherit; background: none; border: 0; display: block; width: 100%; height: 100%; margin: 0; padding: 12px 14px; cursor: pointer; }
thead button:focus-visible { outline: 2px solid var(--accent); outline-offset: -3px; }
thead th .arrow { opacity: .4; font-size: .7rem; }
thead th[aria-sort="ascending"] .arrow,
thead th[aria-sort="descending"] .arrow { opacity: 1; color: var(--accent); }
thead th[aria-sort="ascending"] .down,
thead th[aria-sort="descending"] .up { display: none; }
thead th.num, td.num { text-align: right; }
tbody td { padding: 11px 14px; border-bottom: 1px solid color-mix(in srgb, var(--line) 55%, transparent); vertical-align: middle; }
tbody tr { cursor: pointer; transition: background .1s var(--ease); }
tbody tr:hover { background: color-mix(in srgb, var(--accent) 7%, transparent); }
tbody tr:last-child td { border-bottom: none; }
.book { display: flex; align-items: center; gap: 11px; }
.cover { flex: 0 0 auto; }
.title { font-weight: 600; }
.title a { color: var(--ink); text-decoration: none; }
.title a:hover { color: var(--accent); text-decoration: underline; }
.cat {
  display: inline-block; font-size: .78rem; color: var(--accent-2);
  background: color-mix(in srgb, var(--accent-2) 12%, transparent); border: 1px solid color-mix(in srgb, var(--accent-2) 28%, transparent);
  padding: 2px 9px; border-radius: 999px; white-space: nowrap;
}
.price { font-variant-numeric: tabular-nums; font-weight: 600; }
.stars { color: var(--star); letter-spacing: 1px; white-space: nowrap; }
.stars .off { color: color-mix(in srgb, var(--star) 24%, var(--line)); }
.stock { font-variant-numeric: tabular-nums; }
.stock.out { color: var(--danger); }
.empty { padding: 44px 20px; text-align: center; color: var(--muted); }
.empty[hidden] { display: none; }
.empty svg { opacity: .5; margin-bottom: 8px; }
.empty .reset-empty { margin-top: 12px; }

/* column hide toggles (set on .view-area) */
.view-area.hide-category td:nth-child(2), .view-area.hide-category th:nth-child(2),
.view-area.hide-price td:nth-child(3), .view-area.hide-price th:nth-child(3),
.view-area.hide-rating td:nth-child(4), .view-area.hide-rating th:nth-child(4),
.view-area.hide-stock td:nth-child(5), .view-area.hide-stock th:nth-child(5) { display: none; }

/* ---------- grid view ---------- */
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 14px; }
.grid[hidden] { display: none; }
.bookcard {
  background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 14px; box-shadow: var(--shadow-sm); cursor: pointer; display: flex; flex-direction: column; gap: 10px;
  transition: transform .14s var(--ease), border-color .14s var(--ease), box-shadow .14s var(--ease);
}
.bookcard:hover { transform: translateY(-3px); border-color: var(--line-2); box-shadow: var(--shadow); }
.bookcard:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.bookcard .bc-top { display: flex; gap: 12px; align-items: flex-start; }
.bookcard .bc-title { font-weight: 600; font-size: .95rem; line-height: 1.25; }
.bookcard .bc-meta { display: flex; justify-content: space-between; align-items: center; margin-top: auto; }
.bookcard .bc-price { font-weight: 700; font-variant-numeric: tabular-nums; }
.pager { display: flex; align-items: center; justify-content: center; gap: 12px; margin-top: 16px; }
.pager[hidden] { display: none; }
.pager .pinfo { color: var(--muted); font-size: .85rem; font-variant-numeric: tabular-nums; }

/* ---------- skeleton loading ---------- */
.skeleton { position: relative; overflow: hidden; background: var(--panel-2); border-radius: 8px; }
.skeleton::after { content: ""; position: absolute; inset: 0; transform: translateX(-100%); background: linear-gradient(90deg, transparent, color-mix(in srgb, var(--ink) 10%, transparent), transparent); animation: shimmer 1.2s infinite; }
@keyframes shimmer { 100% { transform: translateX(100%); } }
.sk-row { height: 44px; margin: 8px 0; }

/* ---------- drawer / dialog ---------- */
.scrim { position: fixed; inset: 0; background: rgba(5,8,16,.55); z-index: 80; opacity: 0; transition: opacity .2s var(--ease); }
.scrim[hidden] { display: none; }
.scrim.show { opacity: 1; }
.drawer {
  position: fixed; top: 0; right: 0; bottom: 0; z-index: 90;
  width: min(440px, 92vw); background: var(--panel); border-left: 1px solid var(--line-2);
  box-shadow: -20px 0 50px rgba(0,0,0,.4); transform: translateX(100%);
  transition: transform .26s var(--ease); display: flex; flex-direction: column;
  padding-bottom: env(safe-area-inset-bottom); padding-top: env(safe-area-inset-top);
}
.drawer[hidden] { display: none; }
.drawer.show { transform: translateX(0); }
.drawer .dhead { display: flex; align-items: center; gap: 12px; padding: 16px 18px; border-bottom: 1px solid var(--line); }
.drawer .dhead h2 { margin: 0; font-size: 1.05rem; flex: 1 1 auto; }
.drawer .dbody { padding: 16px 18px; overflow-y: auto; }
.drawer .drow { display: flex; justify-content: space-between; gap: 14px; padding: 9px 0; border-bottom: 1px solid color-mix(in srgb, var(--line) 55%, transparent); font-size: .92rem; }
.drawer .drow .dk { color: var(--muted); }
.drawer .drow .dv { text-align: right; font-variant-numeric: tabular-nums; }
.drawer .ddesc { margin-top: 12px; color: var(--ink-2); font-size: .9rem; line-height: 1.6; }
.drawer .dcover { display: flex; justify-content: center; margin: 4px 0 10px; }
.drawer .dactions { margin-top: 14px; display: flex; gap: 10px; flex-wrap: wrap; }

/* provenance / pipeline log */
.prov-list { display: grid; gap: 10px; }
.prov-step { display: flex; gap: 12px; align-items: flex-start; }
.prov-step .pdot { flex: 0 0 auto; width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; background: color-mix(in srgb, var(--accent-2) 16%, var(--panel-2)); color: var(--accent-2); border: 1px solid color-mix(in srgb, var(--accent-2) 30%, transparent); }
.prov-step .pmain { flex: 1 1 auto; }
.prov-step .pname { font-weight: 600; font-size: .9rem; }
.prov-step .pmeta { color: var(--muted); font-size: .78rem; margin-top: 2px; }
.prov-step .pmeta code { color: var(--accent-2); }

/* ---------- toasts ---------- */
.toasts { position: fixed; left: 50%; bottom: calc(18px + env(safe-area-inset-bottom)); transform: translateX(-50%); z-index: 120; display: flex; flex-direction: column; gap: 8px; align-items: center; width: max-content; max-width: 92vw; pointer-events: none; }
.toast {
  background: var(--panel); border: 1px solid var(--line-2); border-radius: 10px;
  box-shadow: var(--shadow); padding: 10px 14px; font-size: .88rem; color: var(--ink);
  display: flex; align-items: center; gap: 9px; opacity: 0; transform: translateY(10px);
  transition: opacity .2s var(--ease), transform .2s var(--ease);
}
.toast.show { opacity: 1; transform: translateY(0); }
.toast svg { color: var(--accent-2); flex: 0 0 auto; }

/* ---------- footer ---------- */
footer.site {
  margin-top: 30px; text-align: center; color: var(--muted); font-size: .84rem;
}
footer.site .demo {
  display: inline-block; margin-bottom: 8px; padding: 4px 12px;
  border: 1px dashed var(--line); border-radius: 999px; color: var(--accent-2);
}
footer.site a { color: var(--accent); }
.source-link { display: inline-block; margin: 2px 0; }

/* ---------- responsive ---------- */
.m-only { display: none; }
@media (max-width: 860px) {
  .charts { grid-template-columns: 1fr; }
}
@media (max-width: 760px) {
  .wrap { padding: 18px 14px 110px; }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .m-only { display: block; }
  .controls { position: static; }
  .controls input, .controls select, .m-only { min-height: 44px; }
  .count { width: 100%; margin: 2px 0 0; }
  .header-tools { width: 100%; }
  .pill { font-size: .72rem; }
  footer.site a { display: inline-block; padding: 8px 6px; }
  .drawer { width: 100vw; }
}
@media (max-width: 420px) {
  .brand h1 { font-size: 1.2rem; }
}

/* sticky mobile action bar */
.mobilebar {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 60;
  display: none; gap: 8px; padding: 8px 12px calc(8px + env(safe-area-inset-bottom));
  background: color-mix(in srgb, var(--panel) 92%, transparent); border-top: 1px solid var(--line);
  backdrop-filter: blur(8px);
}
.mobilebar .btn { flex: 1 1 0; }
@media (max-width: 760px) { .mobilebar { display: flex; } }

.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0); border: 0;
}
.skip {
  position: absolute; left: -9999px; top: 0;
  background: var(--accent); color: #0b1020; padding: 8px 14px; border-radius: 8px; z-index: 200;
}
.skip:focus { left: 12px; top: 12px; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; scroll-behavior: auto !important; }
}