:root {
  color-scheme: light dark;
  --bg: light-dark(#f5f7f4, #0c110e);
  --surface: light-dark(#ffffff, #151b17);
  --surface-2: light-dark(#edf2ed, #1d2620);
  --text: light-dark(#152019, #eef6f0);
  --muted: light-dark(#5d6d63, #a4b4a9);
  --line: light-dark(#d5ded7, #344139);
  --green: light-dark(#087c4c, #67dda2);
  --green-soft: light-dark(#e1f4e9, #173a2a);
  --blue: light-dark(#216e9c, #7bcaf0);
  --blue-soft: light-dark(#e4f1f8, #173444);
  --amber: light-dark(#8f5700, #ffc467);
  --amber-soft: light-dark(#fff0d6, #3b2d16);
  --red: light-dark(#9e3635, #ff9b92);
  --red-soft: light-dark(#fae7e5, #3d2321);
  --shadow: light-dark(rgba(27, 55, 36, .09), rgba(0, 0, 0, .28));
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
body { background: var(--bg); color: var(--text); margin: 0; min-width: 300px; }
button, input, select, textarea { font: inherit; }
button, input, select, textarea, summary { outline-offset: 3px; }
button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible, summary:focus-visible, .table-scroll:focus-visible { outline: 3px solid var(--blue); }
.skip-link { background: var(--text); color: var(--surface); left: 1rem; padding: .7rem 1rem; position: fixed; top: -4rem; z-index: 20; }
.skip-link:focus { top: 1rem; }

.site-header, main, footer { margin-inline: auto; max-width: 1540px; width: calc(100% - 36px); }
.site-header { align-items: flex-end; display: flex; gap: 24px; justify-content: space-between; padding: 34px 0 22px; }
.site-header > div:first-child { max-width: 850px; }
h1, h2, h3, p { margin-top: 0; }
h1 { font-size: clamp(1.65rem, 4vw, 2.75rem); letter-spacing: -.035em; line-height: 1.05; margin-bottom: 12px; }
h2 { font-size: 1.08rem; margin-bottom: 6px; }
h3 { font-size: .95rem; margin-bottom: 8px; }
.eyebrow, .section-label { color: var(--green); font-size: .72rem; font-weight: 750; letter-spacing: .12em; margin-bottom: 7px; text-transform: uppercase; }
.lede { color: var(--muted); font-size: 1rem; line-height: 1.55; margin-bottom: 0; }
.freshness { align-items: center; background: var(--surface); border: 1px solid var(--line); border-radius: 999px; display: flex; flex: 0 0 auto; font-size: .78rem; gap: 8px; padding: 9px 12px; }
.signal { background: var(--green); border-radius: 50%; height: 8px; width: 8px; }

.decision-bar { align-items: center; background: var(--surface); border: 1px solid var(--line); border-radius: 16px; box-shadow: 0 12px 36px var(--shadow); display: flex; gap: 22px; justify-content: space-between; margin-bottom: 14px; padding: 18px; }
.decision-bar p:last-child { color: var(--muted); margin-bottom: 0; }
.window-control { border: 0; display: flex; flex: 0 0 auto; gap: 6px; margin: 0; padding: 0; }
.window-control legend { color: var(--muted); font-size: .72rem; margin-bottom: 7px; }
.window-control label { background: var(--surface-2); border: 1px solid var(--line); border-radius: 8px; cursor: pointer; font-size: .8rem; padding: 8px 10px; }
.window-control label:has(input:checked) { background: var(--green-soft); border-color: var(--green); color: var(--green); }
.window-control input { accent-color: var(--green); }

.hardware-estimator { align-items: end; display: grid; gap: 10px 18px; grid-template-columns: minmax(260px, .9fr) minmax(380px, 1.1fr); }
.hardware-copy p:last-child { color: var(--muted); font-size: .8rem; line-height: 1.45; margin-bottom: 0; }
.hardware-controls { align-items: end; display: grid; gap: 10px; grid-template-columns: minmax(210px, 1fr) minmax(120px, .45fr) minmax(165px, .55fr); }
.hardware-estimator .form-feedback, .hardware-estimator .hardware-details, .hardware-help { grid-column: 1 / -1; }
.hardware-estimator .form-feedback:empty, .hardware-details:not([open]) p { display: none; }
.hardware-help { color: var(--muted); font-size: .72rem; margin: -2px 0 0; }
.hardware-details { background: transparent; border-top: 1px solid var(--line); border-radius: 0; padding: 10px 0 0; }

.alert { border-left: 4px solid; margin: 14px 0; padding: 12px 14px; }
.alert.warning { background: var(--amber-soft); border-color: var(--amber); }
.delayed-alert span { display: block; margin-top: 4px; }
.alert.error { background: var(--red-soft); border-color: var(--red); color: var(--red); }
.summary-grid { display: grid; gap: 12px; grid-template-columns: repeat(3, minmax(0, 1fr)); margin-top: 14px; }
.summary-card, .panel { background: var(--surface); border: 1px solid var(--line); border-radius: 14px; box-shadow: 0 8px 28px var(--shadow); }
.summary-card { min-width: 0; padding: 15px; }
.summary-card strong { display: block; font-size: 1.28rem; font-variant-numeric: tabular-nums; margin: 5px 0 4px; }
.summary-card small { color: var(--muted); line-height: 1.4; }
.summary-label { color: var(--muted); font-size: .76rem; margin: 10px 0 0; }
.panel { margin-bottom: 14px; padding: 18px; }
.live-runtime { overflow: hidden; }
.live-runtime-heading { align-items: flex-start; display: flex; gap: 18px; justify-content: space-between; margin-bottom: 14px; }
.live-runtime-heading > div:first-child { min-width: 0; }
.live-status-wrap { align-items: flex-end; display: flex; flex-direction: column; gap: 6px; text-align: right; }
.live-status-wrap small { color: var(--muted); font-size: .7rem; }
.live-stage { border: 1px solid var(--line); border-radius: 999px; display: inline-block; font-size: .7rem; font-weight: 780; padding: 6px 9px; }
.live-stage.decoding { background: var(--green-soft); border-color: var(--green); color: var(--green); }
.live-stage.compute-active { background: var(--green-soft); border-color: var(--green); color: var(--green); }
.live-stage.work-active { background: var(--amber-soft); border-color: var(--amber); color: var(--amber); }
.live-stage.prefill-or-waiting { background: var(--amber-soft); border-color: var(--amber); color: var(--amber); }
.live-stage.idle { background: var(--blue-soft); border-color: var(--blue); color: var(--blue); }
.live-stage.unavailable { background: var(--surface-2); color: var(--muted); }
.live-metric-grid { display: grid; gap: 10px; grid-template-columns: repeat(3, minmax(0, 1fr)); }
.live-metric { background: var(--surface-2); border: 1px solid var(--line); border-radius: 10px; min-width: 0; padding: 13px; }
.live-metric.primary-metric { background: var(--green-soft); border-color: var(--green); }
.live-metric > span, .live-runtime-facts span { color: var(--muted); display: block; font-size: .7rem; line-height: 1.35; }
.live-metric > strong { display: block; font-size: clamp(1.05rem, 2vw, 1.45rem); font-variant-numeric: tabular-nums; margin: 7px 0 5px; overflow-wrap: anywhere; }
.live-metric > small, .live-runtime-facts small { color: var(--muted); display: block; font-size: .66rem; line-height: 1.4; }
.live-runtime-detail { display: grid; gap: 10px; grid-template-columns: minmax(0, 1.6fr) minmax(280px, .8fr); margin-top: 10px; }
.live-chart-card, .live-runtime-facts { background: var(--surface-2); border: 1px solid var(--line); border-radius: 10px; min-width: 0; padding: 13px; }
.live-chart-card { position: relative; }
.live-card-heading { align-items: flex-start; display: flex; gap: 12px; justify-content: space-between; }
.live-card-heading h3 { margin-bottom: 3px; }
.live-card-heading p { color: var(--muted); font-size: .68rem; margin-bottom: 0; }
.live-card-heading > span { color: var(--muted); flex: 0 0 auto; font-size: .68rem; font-variant-numeric: tabular-nums; }
.live-rate-chart { cursor: crosshair; display: block; height: 150px; margin-top: 9px; overflow: visible; touch-action: none; width: 100%; }
.chart-baseline { stroke: var(--line); stroke-width: 1; }
.chart-line { fill: none; pointer-events: none; stroke: var(--green); stroke-linecap: round; stroke-linejoin: round; stroke-width: 4; vector-effect: non-scaling-stroke; }
.chart-guide { pointer-events: none; stroke: var(--muted); stroke-dasharray: 4 4; stroke-width: 1; vector-effect: non-scaling-stroke; }
.chart-point { fill: var(--surface); pointer-events: none; stroke: var(--green); stroke-width: 4; vector-effect: non-scaling-stroke; }
.chart-hit-area { fill: transparent; pointer-events: all; }
.live-chart-tooltip { background: var(--text); border-radius: 7px; color: var(--surface); min-width: 108px; padding: 7px 9px; pointer-events: none; position: absolute; text-align: left; transform: translate(-50%, calc(-100% - 10px)); z-index: 3; }
.live-chart-tooltip::after { border: 5px solid transparent; border-top-color: var(--text); content: ""; left: 50%; position: absolute; top: 100%; transform: translateX(-50%); }
.live-chart-tooltip span { display: block; font-size: .62rem; opacity: .78; }
.live-chart-tooltip strong { display: block; font-size: .75rem; font-variant-numeric: tabular-nums; margin-top: 2px; white-space: nowrap; }
.chart-selection-output { clip: rect(0 0 0 0); clip-path: inset(50%); height: 1px; margin: 0; overflow: hidden; position: absolute; white-space: nowrap; width: 1px; }
.live-runtime-facts { display: grid; gap: 12px; }
.live-runtime-facts > div { border-bottom: 1px solid var(--line); padding-bottom: 10px; }
.live-runtime-facts > div:last-child { border-bottom: 0; padding-bottom: 0; }
.live-runtime-facts strong { display: block; font-size: .82rem; margin-top: 4px; overflow-wrap: anywhere; }
.live-model-list { display: flex; flex-wrap: wrap; gap: 5px; margin-top: 6px; }
.model-pill { background: var(--surface); border: 1px solid var(--line); border-radius: 999px; color: var(--text); display: inline-block; font-size: .64rem; overflow-wrap: anywhere; padding: 5px 7px; }
.live-limit-note strong { color: var(--amber); }
.panel-heading { align-items: flex-start; display: flex; gap: 18px; justify-content: space-between; margin-bottom: 14px; }
.panel-heading > div { min-width: 0; }
.heading-help { color: var(--muted); font-size: .8rem; line-height: 1.45; margin: 0; }
.ranking-summary { background: var(--green-soft); border: 1px solid var(--green); border-radius: 10px; margin-bottom: 12px; padding: 14px; }
.ranking-summary h3 { font-size: 1.08rem; margin-bottom: 5px; }
.ranking-summary p { color: var(--muted); font-size: .8rem; line-height: 1.5; margin: 0; }
.ranking-summary .portfolio-memory { border-top: 1px solid color-mix(in srgb, var(--green) 35%, transparent); margin-top: 8px; padding-top: 8px; }
.hardware-ranking-list { display: grid; gap: 8px; list-style: none; margin: 0; padding: 0; }
.ranking-item { align-items: center; background: var(--surface-2); border: 1px solid var(--line); border-radius: 10px; display: grid; gap: 12px; grid-template-columns: auto minmax(230px, 1.25fr) minmax(170px, .8fr) minmax(110px, .5fr) auto; padding: 12px; }
.ranking-item-first, .ranking-item-selected { background: var(--green-soft); border-color: var(--green); }
.ranking-position { align-items: center; background: var(--surface); border: 1px solid var(--line); border-radius: 50%; display: flex; font-size: .82rem; font-weight: 800; height: 30px; justify-content: center; width: 30px; }
.ranking-model, .ranking-metric { min-width: 0; }
.ranking-model > strong, .ranking-metric > strong { display: block; font-size: .86rem; margin-top: 3px; overflow-wrap: anywhere; }
.ranking-model > small, .ranking-model > span, .ranking-metric > span { color: var(--muted); display: block; font-size: .68rem; line-height: 1.4; overflow-wrap: anywhere; }
.ranking-model .ranking-label { color: var(--green); font-weight: 750; }
.ranking-decision-copy, .ranking-memory-copy, .ranking-evidence-copy { font-size: .7rem; line-height: 1.45; margin: 6px 0 0; }
.ranking-decision-copy { color: var(--text); font-weight: 650; }
.ranking-memory-copy, .ranking-evidence-copy { color: var(--muted); }
.ranking-confidence { justify-self: end; }
.ranking-confidence > span { color: var(--muted); display: block; font-size: .68rem; line-height: 1.4; margin-bottom: 4px; }
.ranking-order-details { border: 1px solid var(--line); margin-top: 10px; padding: 10px 12px; }
.evidence-key { display: flex; flex-wrap: wrap; gap: 6px; justify-content: flex-end; }
.evidence { border: 1px solid transparent; border-radius: 999px; display: inline-block; font-size: .66rem; font-weight: 700; letter-spacing: .025em; padding: 4px 7px; white-space: nowrap; }
.evidence.api { background: var(--green-soft); color: var(--green); }
.evidence.derived { background: var(--blue-soft); color: var(--blue); }
.evidence.assumption { background: var(--amber-soft); color: var(--amber); }
.evidence.unavailable { background: var(--surface-2); border-color: var(--line); color: var(--muted); }

.table-scroll { overflow-x: auto; }
table { border-collapse: collapse; font-size: .77rem; width: 100%; }
th { color: var(--muted); font-size: .66rem; letter-spacing: .045em; line-height: 1.35; padding: 9px; text-align: left; text-transform: uppercase; vertical-align: bottom; }
td { border-top: 1px solid var(--line); max-width: 240px; padding: 11px 9px; vertical-align: top; }
tbody tr:hover { background: var(--surface-2); }
.model-name { color: var(--text); font-weight: 720; }
.model-meta { color: var(--muted); display: block; font-size: .68rem; margin-top: 4px; overflow-wrap: anywhere; }
.number { font-variant-numeric: tabular-nums; white-space: nowrap; }
.status { border-radius: 999px; display: inline-block; font-size: .68rem; font-weight: 750; line-height: 1.25; padding: 5px 8px; }
.status.best { background: var(--green-soft); color: var(--green); }
.status.no-clear { background: var(--blue-soft); color: var(--blue); }
.status.observation, .status.insufficient { background: var(--amber-soft); color: var(--amber); }
.status.required, .status.unavailable { background: var(--surface-2); border: 1px solid var(--line); color: var(--muted); }
.loading-cell { color: var(--muted); padding: 28px; text-align: center; }
.supporting-copy { border-top: 1px solid var(--line); color: var(--muted); font-size: .75rem; line-height: 1.5; margin: 14px 0 0; padding-top: 12px; }
.audit-model-picker { background: var(--green-soft); border: 1px solid var(--green); border-radius: 10px; margin-bottom: 12px; padding: 12px; }
.audit-model-picker label { color: var(--text); font-size: .82rem; font-weight: 750; }
.audit-model-picker select { background: var(--surface); }
.audit-model-picker p { color: var(--muted); font-size: .75rem; line-height: 1.45; margin: 8px 0 0; }
.selected-model-summary { background: var(--surface-2); border: 1px solid var(--line); border-radius: 12px; display: grid; gap: 14px; grid-template-columns: minmax(240px, .75fr) minmax(420px, 1.25fr); margin-bottom: 12px; padding: 16px; }
.result-intro { align-self: center; }
.result-intro h3 { font-size: 1.2rem; margin-bottom: 7px; }
.result-intro p:last-child { color: var(--muted); font-size: .8rem; line-height: 1.5; margin-bottom: 0; }
.simple-results { display: grid; gap: 10px; grid-template-columns: repeat(2, minmax(0, 1fr)); }
.simple-results article { background: var(--surface); border: 1px solid var(--line); border-radius: 9px; min-width: 0; padding: 13px; }
.simple-results span { color: var(--muted); display: block; font-size: .72rem; line-height: 1.35; }
.simple-results strong { display: block; font-size: 1.15rem; margin: 6px 0; overflow-wrap: anywhere; }
.simple-results small { color: var(--muted); display: block; font-size: .7rem; line-height: 1.45; }
.comparison-disclosure { border: 1px solid var(--line); margin-top: 10px; padding: 12px 14px; }
.comparison-disclosure > summary { font-size: .9rem; }
.disclosure-copy { color: var(--muted); font-size: .76rem; line-height: 1.5; }
.comparison-disclosure[open] > summary { margin-bottom: 12px; }
.comparison-disclosure .table-scroll { margin-top: 12px; }

.detail-layout { display: grid; gap: 10px; grid-template-columns: 1fr; }
.advanced-panel > summary { font-size: .9rem; }
.advanced-panel[open] > summary { border-bottom: 1px solid var(--line); margin-bottom: 16px; padding-bottom: 12px; }
.detail-panel { margin-top: 4px; }
.profile-panel { margin-top: 16px; }
.detail-content { display: grid; gap: 10px; }
.audit-section { background: var(--surface-2); border-radius: 10px; padding: 12px; }
.audit-section p:last-child, .audit-section ul:last-child { margin-bottom: 0; }
.audit-grid { display: grid; gap: 8px; grid-template-columns: repeat(3, minmax(0, 1fr)); }
.audit-item { background: var(--surface); border: 1px solid var(--line); border-radius: 8px; padding: 9px; }
.audit-item span { color: var(--muted); display: block; font-size: .68rem; margin-bottom: 4px; }
.audit-item strong { font-size: .82rem; overflow-wrap: anywhere; }
.formula { background: var(--surface); border: 1px solid var(--line); border-radius: 8px; display: block; font-size: .76rem; overflow-x: auto; padding: 10px; white-space: pre-wrap; }
.muted { color: var(--muted); font-size: .8rem; line-height: 1.45; }
.input-grid { display: grid; gap: 10px; grid-template-columns: 1fr 1fr; }
label { color: var(--muted); display: block; font-size: .75rem; }
input, select, textarea { background: var(--surface-2); border: 1px solid var(--line); border-radius: 8px; color: var(--text); margin-top: 5px; padding: 9px; width: 100%; }
textarea { resize: vertical; }
.form-actions { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
button.primary, button.secondary { border: 1px solid; border-radius: 8px; cursor: pointer; padding: 9px 11px; }
button.primary { background: var(--green); border-color: var(--green); color: white; }
button.secondary { background: transparent; border-color: var(--line); color: var(--text); }
.form-feedback { color: var(--green); font-size: .76rem; margin: 10px 0 0; min-height: 1.1em; }

.method-panel > summary, .data-details > summary { font-size: .9rem; }
.method-panel[open] > summary, .data-details[open] > summary { border-bottom: 1px solid var(--line); margin-bottom: 14px; padding-bottom: 12px; }
.method-copy { max-width: 820px; }
.method-copy p { color: var(--muted); font-size: .8rem; line-height: 1.5; }
.method-grid { display: grid; gap: 10px; grid-template-columns: repeat(2, minmax(0, 1fr)); }
details { background: var(--surface-2); border-radius: 10px; padding: 11px; }
summary { cursor: pointer; font-size: .82rem; font-weight: 730; }
details p, details li { color: var(--muted); font-size: .76rem; line-height: 1.5; }
details p { margin: 10px 0 0; }
details ul { margin-bottom: 0; padding-left: 18px; }
code { overflow-wrap: anywhere; }
footer { color: var(--muted); font-size: .74rem; line-height: 1.5; padding: 8px 0 34px; }
footer strong { color: var(--text); }

@media (max-width: 1000px) {
  .live-metric-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .live-runtime-detail { grid-template-columns: 1fr; }
  .hardware-estimator { grid-template-columns: 1fr; }
  .hardware-controls { grid-template-columns: minmax(210px, 1fr) minmax(130px, .55fr) auto; }
  .detail-layout { grid-template-columns: 1fr; }
  .summary-grid { grid-template-columns: 1fr; }
  .selected-model-summary { grid-template-columns: 1fr; }
  .ranking-item { grid-template-columns: auto minmax(220px, 1fr) minmax(170px, .8fr); }
  .ranking-confidence { justify-self: start; }
}

@media (max-width: 720px) {
  .site-header, .decision-bar, .panel-heading, .live-runtime-heading { align-items: flex-start; flex-direction: column; }
  .live-status-wrap { align-items: flex-start; text-align: left; }
  .freshness { white-space: normal; }
  .window-control { flex-wrap: wrap; }
  .evidence-key { justify-content: flex-start; }
  .hardware-controls { grid-template-columns: 1fr; }
  .method-grid, .audit-grid { grid-template-columns: 1fr; }
  .simple-results { grid-template-columns: 1fr; }
  .ranking-item { align-items: start; grid-template-columns: auto minmax(0, 1fr); }
  .ranking-metric, .ranking-confidence { grid-column: 2; }
  .table-scroll { overflow: visible; }
  table { table-layout: fixed; width: 100%; }
  table, thead, tbody, tr, th, td { display: block; max-width: 100%; min-width: 0; }
  thead { clip: rect(0 0 0 0); clip-path: inset(50%); height: 1px; overflow: hidden; position: absolute; white-space: nowrap; width: 1px; }
  thead tr, thead th { height: 1px; max-width: 1px; overflow: hidden; white-space: nowrap; width: 1px; }
  tbody { display: grid; gap: 12px; }
  tbody tr { border: 1px solid var(--line); border-radius: 10px; padding: 10px; width: 100%; }
  td { align-items: baseline; border: 0; display: grid; gap: 12px; grid-template-columns: minmax(125px, .8fr) minmax(0, 1.2fr); max-width: none; padding: 7px 2px; }
  td, td > *, .model-name, .model-meta { max-width: 100%; min-width: 0; overflow-wrap: anywhere; white-space: normal; }
  td.number { white-space: normal; }
  td::before { color: var(--muted); content: attr(data-label); font-size: .66rem; font-weight: 750; letter-spacing: .04em; text-transform: uppercase; }
  td.loading-cell { display: block; }
  td.loading-cell::before { content: none; }
}

@media (max-width: 480px) {
  .site-header, main, footer { width: calc(100% - 22px); }
  .site-header { padding-top: 22px; }
  .decision-bar, .panel { padding: 14px; }
  .live-metric-grid { grid-template-columns: 1fr; }
  .input-grid { grid-template-columns: 1fr; }
  td { grid-template-columns: 1fr; gap: 3px; }
}