/* PUFAnalytics — claymorphism design system */
:root {
  color-scheme: light;
  --font: "Nunito", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  --bg: #e8ebf5;
  --bg-blob-1: #d9d2ff;
  --bg-blob-2: #cdeefe;
  --bg-blob-3: #ffe0ec;
  --clay: #f5f6fc;
  --clay-2: #eceffa;
  --clay-inset: #e4e8f5;
  --ink-1: #1d2033;
  --ink-2: #4c5270;
  --ink-3: #7f86a3;
  --grid: #e1e3ee;
  --axis: #c3c6d8;
  --track: #e2e5f1;
  --accent: #6c5ce7;
  --accent-2: #8f83f3;
  --accent-ink: #ffffff;
  --accent-soft: #e7e3ff;
  --shadow-dark: rgba(122, 132, 178, 0.38);
  --shadow-light: rgba(255, 255, 255, 0.95);
  --inner-dark: rgba(122, 132, 178, 0.22);
  --inner-light: rgba(255, 255, 255, 0.85);
  --clay-shadow: 14px 14px 30px var(--shadow-dark), -10px -10px 26px var(--shadow-light),
    inset 5px 5px 12px var(--inner-light), inset -5px -5px 12px var(--inner-dark);
  --clay-shadow-sm: 7px 7px 16px var(--shadow-dark), -6px -6px 14px var(--shadow-light),
    inset 3px 3px 7px var(--inner-light), inset -3px -3px 7px var(--inner-dark);
  --clay-pressed: inset 6px 6px 12px var(--inner-dark), inset -6px -6px 12px var(--inner-light);
  --radius-lg: 30px;
  --radius: 22px;
  --radius-sm: 14px;
  /* data palette (validated categorical order, light steps) */
  --series-1: #2a78d6; --series-2: #eb6834; --series-3: #1baf7a; --series-4: #eda100;
  --series-5: #e87ba4; --series-6: #008300; --series-7: #6250d6; --series-8: #e34948;
  --seq-lo: #eef4fd; --seq-hi: #0d366b;
  --div-lo: #2a78d6; --div-mid: #f0efec; --div-hi: #e34948;
  --bit0: #e6e9f5; --bit1: #3b3f8f;
  --status-good: #0ca30c; --status-fair: #c98500; --status-poor: #d03b3b; --status-na: #9aa0b8;
  --good-ink: #006300; --fair-ink: #8a5a00; --poor-ink: #a32424;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --bg: #141824; --bg-blob-1: #2a2356; --bg-blob-2: #123246; --bg-blob-3: #3a1c32;
    --clay: #1f2434; --clay-2: #252b3d; --clay-inset: #191d2b;
    --ink-1: #eef0f8; --ink-2: #c3c7da; --ink-3: #8b91ab;
    --grid: #2e3447; --axis: #434a62; --track: #2b3144;
    --accent: #8b7cf6; --accent-2: #a89dfa; --accent-ink: #0f1020; --accent-soft: #2f2a55;
    --shadow-dark: rgba(0, 0, 0, 0.55); --shadow-light: rgba(80, 92, 130, 0.16);
    --inner-dark: rgba(0, 0, 0, 0.35); --inner-light: rgba(255, 255, 255, 0.06);
    --series-1: #3987e5; --series-2: #d95926; --series-3: #199e70; --series-4: #c98500;
    --series-5: #d55181; --series-6: #008300; --series-7: #9085e9; --series-8: #e66767;
    --seq-lo: #1c2333; --seq-hi: #9ec5f4;
    --div-lo: #3987e5; --div-mid: #383835; --div-hi: #e66767;
    --bit0: #262c3f; --bit1: #a89dfa;
    --good-ink: #4cd04c; --fair-ink: #f0b437; --poor-ink: #ff7b7b;
  }
}
:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #141824; --bg-blob-1: #2a2356; --bg-blob-2: #123246; --bg-blob-3: #3a1c32;
  --clay: #1f2434; --clay-2: #252b3d; --clay-inset: #191d2b;
  --ink-1: #eef0f8; --ink-2: #c3c7da; --ink-3: #8b91ab;
  --grid: #2e3447; --axis: #434a62; --track: #2b3144;
  --accent: #8b7cf6; --accent-2: #a89dfa; --accent-ink: #0f1020; --accent-soft: #2f2a55;
  --shadow-dark: rgba(0, 0, 0, 0.55); --shadow-light: rgba(80, 92, 130, 0.16);
  --inner-dark: rgba(0, 0, 0, 0.35); --inner-light: rgba(255, 255, 255, 0.06);
  --series-1: #3987e5; --series-2: #d95926; --series-3: #199e70; --series-4: #c98500;
  --series-5: #d55181; --series-6: #008300; --series-7: #9085e9; --series-8: #e66767;
  --seq-lo: #1c2333; --seq-hi: #9ec5f4;
  --div-lo: #3987e5; --div-mid: #383835; --div-hi: #e66767;
  --bit0: #262c3f; --bit1: #a89dfa;
  --good-ink: #4cd04c; --fair-ink: #f0b437; --poor-ink: #ff7b7b;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; font-family: var(--font); color: var(--ink-1); background: var(--bg);
  font-size: 15px; line-height: 1.55; min-height: 100vh; overflow-x: hidden;
}
body::before {
  content: ""; position: fixed; inset: 0; z-index: -1; pointer-events: none;
  background:
    radial-gradient(38vmax 38vmax at 8% 12%, var(--bg-blob-1), transparent 70%),
    radial-gradient(34vmax 34vmax at 92% 8%, var(--bg-blob-2), transparent 70%),
    radial-gradient(40vmax 40vmax at 70% 100%, var(--bg-blob-3), transparent 70%);
  opacity: 0.75;
}
a { color: var(--accent); }
h1, h2, h3, h4 { margin: 0 0 0.4em; line-height: 1.2; letter-spacing: -0.01em; }
h1 { font-size: clamp(1.7rem, 3.4vw, 2.6rem); font-weight: 900; }
h2 { font-size: 1.25rem; font-weight: 800; }
h3 { font-size: 1.02rem; font-weight: 800; }
p { margin: 0 0 0.8em; }
code, kbd, .mono { font-family: var(--mono); font-size: 0.88em; }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; border-radius: 8px; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip-link { position: absolute; left: -999px; top: 8px; z-index: 100; background: var(--clay); padding: 8px 14px; border-radius: 12px; }
.skip-link:focus { left: 12px; }

/* ------------------------------------------------------------------ shell */
.app { display: grid; grid-template-columns: 264px minmax(0, 1fr); min-height: 100vh; }
.sidebar {
  position: sticky; top: 0; height: 100vh; padding: 22px 16px; display: flex; flex-direction: column; gap: 14px;
  overflow-y: auto; z-index: 30;
}
.brand { display: flex; align-items: center; gap: 12px; padding: 6px 10px 12px; text-decoration: none; color: inherit; }
.brand-logo {
  width: 46px; height: 46px; border-radius: 16px; display: grid; place-items: center; flex: none;
  background: linear-gradient(145deg, var(--accent-2), var(--accent)); box-shadow: var(--clay-shadow-sm);
}
.brand-name { font-weight: 900; font-size: 1.15rem; line-height: 1.1; }
.brand-sub { font-size: 0.74rem; color: var(--ink-3); font-weight: 700; letter-spacing: 0.04em; text-transform: uppercase; }
.nav { display: flex; flex-direction: column; gap: 6px; padding: 12px; border-radius: var(--radius-lg); background: var(--clay); box-shadow: var(--clay-shadow); }
.nav a {
  display: flex; align-items: center; gap: 12px; padding: 10px 12px; border-radius: 16px; color: var(--ink-2);
  text-decoration: none; font-weight: 700; transition: background 0.2s, color 0.2s, box-shadow 0.2s, transform 0.15s;
}
.nav a svg { width: 20px; height: 20px; flex: none; }
.nav a:hover { color: var(--ink-1); background: var(--clay-2); }
.nav a[aria-current="page"] { color: var(--accent-ink); background: linear-gradient(145deg, var(--accent-2), var(--accent)); box-shadow: 5px 5px 14px rgba(108, 92, 231, 0.38), inset 2px 2px 5px rgba(255, 255, 255, 0.35), inset -2px -2px 6px rgba(0, 0, 0, 0.12); }
.nav-sep { height: 1px; background: var(--grid); margin: 6px 8px; }
.side-card { padding: 14px 16px; border-radius: var(--radius); background: var(--clay); box-shadow: var(--clay-shadow-sm); font-size: 0.85rem; color: var(--ink-2); }
.side-card b { color: var(--ink-1); }

.main { min-width: 0; padding: 18px 28px 60px; }
.topbar {
  position: sticky; top: 12px; z-index: 20; display: flex; align-items: center; gap: 12px; padding: 10px 12px 10px 20px;
  border-radius: var(--radius-lg); background: color-mix(in srgb, var(--clay) 88%, transparent); backdrop-filter: blur(12px);
  box-shadow: var(--clay-shadow-sm); margin-bottom: 26px;
}
.topbar h1 { font-size: 1.15rem; margin: 0; font-weight: 900; flex: 1; min-width: 0; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.topbar .menu-btn { display: none; }
.progress { position: absolute; left: 20px; right: 20px; bottom: 4px; height: 4px; border-radius: 4px; overflow: hidden; opacity: 0; transition: opacity 0.3s; }
.progress.on { opacity: 1; }
.progress span { display: block; height: 100%; width: 0; background: linear-gradient(90deg, var(--accent-2), var(--accent)); border-radius: 4px; transition: width 0.25s; }

/* ------------------------------------------------------------------ clay primitives */
.card { background: var(--clay); border-radius: var(--radius-lg); box-shadow: var(--clay-shadow); padding: 22px 24px; min-width: 0; position: relative; }
.card.flat { box-shadow: var(--clay-shadow-sm); }
.card-head { display: flex; align-items: flex-start; gap: 12px; margin-bottom: 12px; flex-wrap: wrap; }
.card-head h2, .card-head h3 { margin: 0; flex: 1; min-width: 160px; }
.card-sub { color: var(--ink-3); font-size: 0.86rem; margin: 2px 0 0; font-weight: 600; }
.inset { background: var(--clay-inset); border-radius: var(--radius); box-shadow: var(--clay-pressed); padding: 14px 16px; }

.grid { display: grid; gap: 26px; }
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-auto { grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr)); }
.span-2 { grid-column: span 2; }
.span-all { grid-column: 1 / -1; }
.stack { display: flex; flex-direction: column; gap: 14px; }
.row { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; }
.spacer { flex: 1; }
.muted { color: var(--ink-3); }
.small { font-size: 0.85rem; }

.btn {
  appearance: none; border: 0; cursor: pointer; font: inherit; font-weight: 800; color: var(--ink-1);
  display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 10px 18px; min-height: 42px;
  border-radius: 16px; background: var(--clay); box-shadow: var(--clay-shadow-sm); transition: transform 0.12s, box-shadow 0.2s, background 0.2s;
  white-space: nowrap; text-decoration: none;
}
.btn svg { width: 18px; height: 18px; flex: none; }
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(1px) scale(0.98); box-shadow: var(--clay-pressed); }
.btn[disabled] { opacity: 0.55; cursor: not-allowed; transform: none; }
.btn.primary { color: var(--accent-ink); background: linear-gradient(145deg, var(--accent-2), var(--accent)); box-shadow: 7px 7px 18px rgba(108, 92, 231, 0.4), -5px -5px 14px var(--shadow-light), inset 3px 3px 7px rgba(255, 255, 255, 0.35), inset -3px -3px 8px rgba(0, 0, 0, 0.15); }
.btn.small { min-height: 34px; padding: 6px 12px; border-radius: 12px; font-size: 0.84rem; }
.btn.icon { padding: 0; width: 42px; }
.btn.icon.small { width: 34px; }
.btn.ghost { background: transparent; box-shadow: none; color: var(--ink-2); }
.btn.ghost:hover { background: var(--clay-2); }
.btn.danger { color: var(--poor-ink); }
.btn-group { display: inline-flex; gap: 8px; flex-wrap: wrap; }

.field { display: flex; flex-direction: column; gap: 6px; min-width: 0; }
.field > span, .field > label { font-size: 0.8rem; font-weight: 800; color: var(--ink-2); letter-spacing: 0.02em; }
.field small { color: var(--ink-3); font-size: 0.76rem; }
input[type="text"], input[type="number"], input[type="search"], select, textarea {
  font: inherit; color: var(--ink-1); background: var(--clay-inset); border: 0; border-radius: 14px; padding: 10px 14px;
  box-shadow: var(--clay-pressed); min-height: 42px; width: 100%; min-width: 0;
}
textarea { font-family: var(--mono); font-size: 0.82rem; min-height: 140px; resize: vertical; line-height: 1.45; }
select { appearance: none; padding-right: 36px; background-image: linear-gradient(45deg, transparent 50%, var(--ink-3) 50%), linear-gradient(135deg, var(--ink-3) 50%, transparent 50%); background-position: calc(100% - 20px) 52%, calc(100% - 14px) 52%; background-size: 6px 6px; background-repeat: no-repeat; }
input:focus, select:focus, textarea:focus { outline: 3px solid color-mix(in srgb, var(--accent) 55%, transparent); outline-offset: 1px; }
input[type="range"] { width: 100%; accent-color: var(--accent); }
.form-grid { display: grid; gap: 14px; grid-template-columns: repeat(auto-fill, minmax(min(100%, 150px), 1fr)); }

.seg { display: inline-flex; padding: 5px; border-radius: 16px; background: var(--clay-inset); box-shadow: var(--clay-pressed); gap: 4px; flex-wrap: wrap; }
.seg button { border: 0; background: transparent; font: inherit; font-weight: 800; font-size: 0.84rem; color: var(--ink-2); padding: 7px 14px; border-radius: 12px; cursor: pointer; }
.seg button[aria-pressed="true"] { background: var(--clay); color: var(--ink-1); box-shadow: var(--clay-shadow-sm); }

.chip { display: inline-flex; align-items: center; gap: 6px; padding: 4px 11px; border-radius: 999px; font-size: 0.78rem; font-weight: 800; background: var(--clay-2); color: var(--ink-2); box-shadow: inset 2px 2px 4px var(--inner-light), inset -2px -2px 4px var(--inner-dark); }
.chip.accent { background: var(--accent-soft); color: var(--accent); }
.badge { display: inline-flex; align-items: center; gap: 5px; font-size: 0.76rem; font-weight: 900; padding: 3px 10px 3px 7px; border-radius: 999px; letter-spacing: 0.02em; }
.badge svg { width: 14px; height: 14px; }
.badge.good { color: var(--good-ink); background: color-mix(in srgb, var(--status-good) 16%, transparent); }
.badge.fair { color: var(--fair-ink); background: color-mix(in srgb, var(--status-fair) 18%, transparent); }
.badge.poor { color: var(--poor-ink); background: color-mix(in srgb, var(--status-poor) 16%, transparent); }
.badge.na { color: var(--ink-3); background: var(--clay-2); }

/* ------------------------------------------------------------------ hero & kpis */
.hero { display: grid; grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr); gap: 28px; align-items: center; padding: 34px; }
.hero p.lead { font-size: 1.08rem; color: var(--ink-2); max-width: 60ch; }
.hero-art { display: grid; place-items: center; }
.hero-art svg { width: 100%; max-width: 360px; height: auto; filter: drop-shadow(14px 18px 22px var(--shadow-dark)); }
.feature-list { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 220px), 1fr)); gap: 18px; }
.feature { padding: 18px; border-radius: var(--radius); background: var(--clay); box-shadow: var(--clay-shadow-sm); }
.feature .ico { width: 44px; height: 44px; border-radius: 15px; display: grid; place-items: center; margin-bottom: 10px; box-shadow: var(--clay-shadow-sm); }
.feature .ico svg { width: 22px; height: 22px; }
.feature p { color: var(--ink-2); font-size: 0.9rem; margin: 0; }

.kpis { display: grid; gap: 22px; grid-template-columns: repeat(auto-fill, minmax(min(100%, 290px), 1fr)); }
.kpi { display: flex; gap: 14px; align-items: center; padding: 18px 18px; border-radius: var(--radius-lg); background: var(--clay); box-shadow: var(--clay-shadow); min-width: 0; }
.kpi .kpi-body { min-width: 0; flex: 1; }
.kpi .kpi-label { font-size: 0.8rem; font-weight: 800; color: var(--ink-2); display: flex; gap: 6px; align-items: center; }
.kpi .kpi-value { font-size: 1.65rem; font-weight: 900; line-height: 1.15; letter-spacing: -0.02em; }
.kpi .kpi-value small { font-size: 0.9rem; font-weight: 800; color: var(--ink-3); margin-left: 2px; }
.kpi .kpi-foot { font-size: 0.76rem; color: var(--ink-3); font-weight: 700; margin-top: 2px; }
.gauge { flex: none; }
.tile { padding: 14px 16px; border-radius: var(--radius); background: var(--clay-inset); box-shadow: var(--clay-pressed); min-width: 0; }
.tile .t-label { font-size: 0.76rem; font-weight: 800; color: var(--ink-3); text-transform: uppercase; letter-spacing: 0.05em; }
.tile .t-value { font-size: 1.35rem; font-weight: 900; font-variant-numeric: tabular-nums; overflow-wrap: anywhere; }
.tiles { display: grid; gap: 14px; grid-template-columns: repeat(auto-fill, minmax(min(100%, 150px), 1fr)); }

.score-ring { position: relative; width: 150px; height: 150px; flex: none; }
.score-ring .num { position: absolute; inset: 0; display: grid; place-items: center; text-align: center; font-weight: 900; font-size: 2.2rem; line-height: 1; }
.score-ring .num small { display: block; font-size: 0.72rem; color: var(--ink-3); font-weight: 800; letter-spacing: 0.06em; text-transform: uppercase; margin-top: 4px; }

/* ------------------------------------------------------------------ charts */
.chart { width: 100%; min-height: 120px; position: relative; }
.chart svg { display: block; max-width: 100%; height: auto; border-radius: 12px; }
.chart-tools { display: flex; gap: 6px; flex-wrap: wrap; }
.chart3d-tools { display: flex; gap: 4px; flex-wrap: wrap; margin-bottom: 6px; }
.chart3d-tools .btn { min-height: 30px; padding: 4px 10px; font-size: 0.8rem; }
.chart-table { max-height: 320px; overflow: auto; margin-top: 12px; }
.chart-tip {
  position: fixed; left: 0; top: 0; z-index: 1000; pointer-events: none; opacity: 0; transition: opacity 0.12s;
  background: var(--clay); color: var(--ink-1); border-radius: 14px; padding: 9px 12px; font-size: 0.8rem; min-width: 140px;
  box-shadow: 8px 8px 22px var(--shadow-dark), inset 2px 2px 5px var(--inner-light); border: 1px solid var(--grid);
}
.tip-head { font-weight: 800; color: var(--ink-2); margin-bottom: 4px; }
.tip-row { display: flex; align-items: center; gap: 7px; }
.tip-row b { margin-left: auto; padding-left: 12px; font-variant-numeric: tabular-nums; }
.tip-key { width: 10px; height: 10px; border-radius: 3px; flex: none; }

/* ------------------------------------------------------------------ tables */
.table-wrap { overflow-x: auto; border-radius: var(--radius-sm); }
.data-table { width: 100%; border-collapse: separate; border-spacing: 0; font-size: 0.86rem; }
.data-table th { text-align: left; font-size: 0.74rem; text-transform: uppercase; letter-spacing: 0.05em; color: var(--ink-3); font-weight: 900; padding: 8px 10px; position: sticky; top: 0; background: var(--clay); }
.data-table td { padding: 9px 10px; border-top: 1px solid var(--grid); font-variant-numeric: tabular-nums; vertical-align: middle; }
.data-table tr:hover td { background: color-mix(in srgb, var(--accent-soft) 45%, transparent); }
.data-table td.num, .data-table th.num { text-align: right; }
.pbar { height: 8px; border-radius: 6px; background: var(--track); min-width: 70px; overflow: hidden; }
.pbar span { display: block; height: 100%; border-radius: 6px; }

/* ------------------------------------------------------------------ data */
.dropzone { border-radius: var(--radius); padding: 26px; text-align: center; background: var(--clay-inset); box-shadow: var(--clay-pressed); border: 2px dashed var(--axis); cursor: pointer; transition: border-color 0.2s, background 0.2s; }
.dropzone.drag { border-color: var(--accent); background: var(--accent-soft); }
.dropzone svg { width: 40px; height: 40px; color: var(--accent); }
.ds-list { display: flex; flex-direction: column; gap: 12px; }
.ds-item { display: flex; align-items: center; gap: 12px; padding: 12px 14px; border-radius: 18px; background: var(--clay); box-shadow: var(--clay-shadow-sm); flex-wrap: wrap; }
.ds-item.active { outline: 3px solid color-mix(in srgb, var(--accent) 60%, transparent); }
.ds-item .ds-name { font-weight: 800; overflow-wrap: anywhere; }
.ds-item .ds-info { flex: 1; min-width: 160px; }
.cond-row { display: grid; grid-template-columns: minmax(0, 1fr) 110px 42px; gap: 8px; align-items: center; }
.bitstr { font-family: var(--mono); font-size: 0.78rem; overflow-wrap: anywhere; letter-spacing: 0.04em; color: var(--ink-2); }

/* ------------------------------------------------------------------ docs */
.prose { max-width: 78ch; }
.prose h3 { margin-top: 1.4em; }
.prose pre, pre.code { background: var(--clay-inset); box-shadow: var(--clay-pressed); padding: 14px 16px; border-radius: 16px; overflow-x: auto; font-family: var(--mono); font-size: 0.8rem; line-height: 1.5; color: var(--ink-1); white-space: pre; }
.formula { padding: 10px 14px; margin: 8px 0 12px; border-radius: 14px; background: var(--clay-inset); box-shadow: var(--clay-pressed); overflow-x: auto; }
.def-grid { display: grid; gap: 20px; grid-template-columns: repeat(auto-fit, minmax(min(100%, 340px), 1fr)); }
.ref-list li { margin-bottom: 0.5em; color: var(--ink-2); }
details.acc { border-radius: var(--radius); background: var(--clay); box-shadow: var(--clay-shadow-sm); padding: 4px 18px; }
details.acc summary { cursor: pointer; font-weight: 800; padding: 12px 0; }

/* ------------------------------------------------------------------ toast & misc */
.toasts { position: fixed; right: 18px; bottom: 18px; z-index: 2000; display: flex; flex-direction: column; gap: 10px; max-width: min(380px, calc(100vw - 36px)); }
.toast { padding: 12px 16px; border-radius: 18px; background: var(--clay); box-shadow: var(--clay-shadow); font-weight: 700; display: flex; gap: 10px; align-items: flex-start; animation: pop 0.25s ease-out; }
.toast.error { color: var(--poor-ink); }
.toast.success .dot { background: var(--status-good); }
.toast .dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); margin-top: 7px; flex: none; }
.toast.error .dot { background: var(--status-poor); }
@keyframes pop { from { transform: translateY(10px) scale(0.96); opacity: 0; } to { transform: none; opacity: 1; } }
.view { animation: fade 0.3s ease-out; }
@keyframes fade { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }
.empty { text-align: center; padding: 40px 20px; }
.empty svg { width: 80px; height: 80px; color: var(--accent); margin-bottom: 8px; }
.footer { margin-top: 40px; text-align: center; color: var(--ink-3); font-size: 0.82rem; }
.overlay { display: none; }
.kbd-hint { font-size: 0.75rem; color: var(--ink-3); }

/* ------------------------------------------------------------------ responsive */
@media (max-width: 1180px) { .grid-3 { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 1024px) {
  .app { grid-template-columns: minmax(0, 1fr); }
  .sidebar { position: fixed; left: 0; top: 0; bottom: 0; width: 284px; transform: translateX(-110%); transition: transform 0.28s ease; background: var(--bg); box-shadow: 10px 0 40px var(--shadow-dark); }
  .sidebar.open { transform: none; }
  .overlay.open { display: block; position: fixed; inset: 0; z-index: 25; background: rgba(10, 12, 25, 0.35); }
  .topbar .menu-btn { display: inline-flex; }
  .main { padding: 12px 16px 50px; }
  .hero { grid-template-columns: minmax(0, 1fr); padding: 24px; }
  .hero-art { display: none; }
}
@media (max-width: 760px) {
  .grid-2, .grid-3 { grid-template-columns: minmax(0, 1fr); }
  .span-2 { grid-column: auto; }
  .card { padding: 18px 16px; border-radius: 24px; }
  .grid { gap: 20px; }
  .topbar { padding: 8px 8px 8px 12px; gap: 8px; top: 8px; }
  .topbar .hide-sm { display: none; }
  .kpi .kpi-value { font-size: 1.4rem; }
  .cond-row { grid-template-columns: minmax(0, 1fr) 90px 42px; }
}
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { animation: none !important; transition: none !important; } }
@media print {
  body::before, .sidebar, .topbar, .chart-tools, .no-print, .toasts { display: none !important; }
  .app { display: block; }
  .main { padding: 0; }
  .card { box-shadow: none; border: 1px solid #ccc; break-inside: avoid; }
}

/* Docs deep links (#/docs/<section>) land below the sticky top bar. */
.prose-wrap { scroll-margin-top: 104px; }