/* ---------- tokens ---------- */
:root {
  color-scheme: light dark;

  --paper: #eef2f1;
  --paper-raised: #f9fbfa;
  --surface: #ffffff;
  --ink: #12222b;
  --ink-muted: #55666d;
  --ink-faint: #8b9a9e;
  --line: #d3dcda;
  --line-strong: #b9c6c3;
  --accent: #1856d6;
  --accent-tint: #e4ecfb;
  --good: #1e8a5f;
  --good-tint: #e1f1e9;
  --warn: #c97a1e;
  --warn-tint: #f8ecdb;
  --over: #b23b3b;
  --over-tint: #f6e3e3;

  --font-sans: "IBM Plex Sans", system-ui, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, monospace;

  --dot-grid: radial-gradient(circle, rgba(18, 34, 43, 0.07) 1px, transparent 1px);

  /* Fixed regardless of theme — the compare tray is a floating dark bar in
     both light and dark mode, not a themed surface. */
  --tray-bg: #12222b;
  --tray-fg: #ffffff;

  /* --accent gets brighter in dark mode so it stays legible as text/links
     against a dark page — but that same brightness fails contrast when used
     as a solid fill under white button text. This stays constant instead. */
  --accent-solid: #1856d6;
}

/* Same "spec paper" system, inverted — a dark datasheet rather than a paper one.
   Every component below reads these tokens, so the whole page repaints for free;
   the only non-token overrides are a few native-control affordances. */
@media (prefers-color-scheme: dark) {
  :root {
    --paper: #10161a;
    --paper-raised: #171f24;
    --surface: #1f292e;
    --ink: #e6edee;
    --ink-muted: #93a5a9;
    --ink-faint: #5c6d71;
    --line: #263136;
    --line-strong: #384347;
    --accent: #5b9bff;
    --accent-tint: #142033;
    --good: #34b579;
    --good-tint: #12271d;
    --warn: #e0973c;
    --warn-tint: #2c2013;
    --over: #d9635f;
    --over-tint: #2c1716;

    --dot-grid: radial-gradient(circle, rgba(255, 255, 255, 0.06) 1px, transparent 1px);
  }
}

/* ---------- reset ---------- */
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background-color: var(--paper);
  background-image: var(--dot-grid);
  background-size: 22px 22px;
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.5;
}
h1, h2, h3, p { margin: 0; }
a { color: var(--accent); }
button { font-family: inherit; }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
  * { transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; }
}

/* ---------- page shell ---------- */
.page {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px 96px;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 28px 0 24px;
}
@media (max-width: 480px) {
  .site-header { flex-direction: column; align-items: flex-start; gap: 10px; }
}

.wordmark {
  display: flex;
  align-items: baseline;
  gap: 8px;
  font-weight: 600;
  font-size: 17px;
  letter-spacing: -0.01em;
}
.wordmark__mark { align-self: center; color: var(--accent); }

.byline {
  font-size: 12.5px;
  font-weight: 400;
  color: var(--ink-faint);
  text-decoration: none;
  letter-spacing: 0;
}
.byline:hover { color: var(--accent); }

.site-header__link {
  font-size: 13.5px;
  color: var(--ink-muted);
  text-decoration: none;
  border-bottom: 1px solid var(--line-strong);
}
.site-header__link:hover { color: var(--ink); border-color: var(--ink); }

/* ---------- intro / hero ---------- */
.intro {
  padding: 20px 0 36px;
  max-width: 640px;
}
.intro h1 {
  font-size: 30px;
  line-height: 1.22;
  font-weight: 600;
  letter-spacing: -0.01em;
}
.intro__sub {
  margin-top: 14px;
  color: var(--ink-muted);
  font-size: 16px;
  max-width: 58ch;
}

/* ---------- panels ---------- */
.panel {
  background: var(--paper-raised);
  border: 1px solid var(--line);
  padding: 24px;
  margin-bottom: 20px;
}

.panel__title {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 4px;
}
.panel__tick {
  width: 8px;
  height: 8px;
  background: var(--accent);
  flex: none;
}
.panel__hint {
  color: var(--ink-muted);
  font-size: 13.5px;
  margin: 8px 0 16px;
}

/* ---------- form fields ---------- */
.field-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px 20px;
  margin-top: 18px;
}
@media (max-width: 640px) {
  .field-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 420px) {
  .field-grid { grid-template-columns: 1fr; }
}

.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.field__label {
  font-size: 12.5px;
  color: var(--ink-muted);
  font-weight: 500;
}
.field__label em { font-style: normal; color: var(--ink-faint); }

.field__input {
  border: 1px solid var(--line-strong);
  background: var(--surface);
  color: var(--ink);
  padding: 9px 10px;
  font-size: 14.5px;
  font-family: var(--font-sans);
  width: 100%;
}
.field__input--mono { font-family: var(--font-mono); }
.field__input:focus { border-color: var(--accent); }
.field[data-disabled="true"] { opacity: 0.45; }
.field[data-disabled="true"] .field__input { pointer-events: none; }

.npu-note {
  margin-top: 16px;
  font-size: 13px;
  color: var(--ink-faint);
  border-top: 1px solid var(--line);
  padding-top: 14px;
}

/* ---------- sort & filter layout ---------- */
.layout {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 32px;
  align-items: start;
  margin-top: 8px;
}
@media (max-width: 760px) {
  .layout { grid-template-columns: 1fr; }
}

.filter-pane {
  background: var(--paper-raised);
  border: 1px solid var(--line);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 20px;
  position: sticky;
  top: 20px;
  max-height: calc(100vh - 40px);
  overflow-y: auto;
}
.filter-pane__mobile-header { display: none; }

/* On mobile, the sidebar becomes a bottom sheet opened from a fixed corner
   button instead of a block stacked above the results — the results are
   what people came for; filters are a tool they reach for, not read past. */
@media (max-width: 760px) {
  .filter-pane {
    position: fixed;
    inset: auto 0 0 0;
    top: auto;
    max-height: 80vh;
    border: none;
    border-top: 1px solid var(--line-strong);
    box-shadow: 0 -12px 28px rgba(0, 0, 0, 0.28);
    z-index: 70;
    transform: translateY(100%);
    transition: transform 0.22s ease;
    padding: 16px 20px 24px;
  }
  .filter-pane.is-open { transform: translateY(0); }

  .filter-pane__mobile-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 15px;
    font-weight: 600;
    padding-bottom: 4px;
  }
  .filter-pane__done {
    background: none;
    border: 1px solid var(--line-strong);
    color: var(--ink-muted);
    font-size: 13px;
    padding: 6px 14px;
    cursor: pointer;
  }
  .filter-pane__done:hover { border-color: var(--accent); color: var(--accent); }
}

.filter-sheet-backdrop {
  display: none;
}
.filter-sheet-backdrop[hidden] { display: none; }
@media (max-width: 760px) {
  .filter-sheet-backdrop:not([hidden]) {
    display: block;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.4);
    z-index: 65;
  }
}

.mobile-filter-fab {
  display: none;
}
@media (max-width: 760px) {
  .mobile-filter-fab {
    display: flex;
    align-items: center;
    gap: 7px;
    position: fixed;
    right: 20px;
    bottom: 20px;
    z-index: 55;
    background: var(--tray-bg);
    color: var(--tray-fg);
    border: none;
    font-family: var(--font-sans);
    font-size: 14px;
    font-weight: 500;
    padding: 12px 18px;
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.3);
    cursor: pointer;
    transition: bottom 0.2s ease;
  }
  .mobile-filter-fab.is-above-tray { bottom: 84px; }
}
.mobile-filter-fab__badge {
  background: var(--accent);
  color: #fff;
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1;
  padding: 3px 6px;
}

.filter-group {
  padding-top: 18px;
  border-top: 1px solid var(--line);
}
.filter-group:first-child {
  padding-top: 0;
  border-top: none;
}
.filter-group__title {
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  user-select: none;
  margin-bottom: 4px;
}
.filter-group[open] > .filter-group__title {
  margin-bottom: 10px;
}
.filter-group__title::marker {
  color: var(--ink-faint);
  font-size: 11px;
}
.filter-group__title:hover { color: var(--accent); }

.filter-group__body {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.filter-radio,
.filter-check {
  display: flex;
  align-items: center;
  gap: 9px;
  font-size: 13.5px;
  color: var(--ink-muted);
  padding: 5px 0;
  cursor: pointer;
}
.filter-check-hint {
  color: var(--ink-faint);
  font-size: 12px;
  line-height: 1.4;
  margin: 0 0 8px 23px;
}
.filter-radio:hover,
.filter-check:hover { color: var(--ink); }
.filter-radio input,
.filter-check input {
  width: 14px;
  height: 14px;
  flex: none;
  accent-color: var(--accent);
}

.reset-filters {
  align-self: flex-start;
  background: none;
  border: none;
  padding: 0;
  font-size: 13px;
  color: var(--ink-faint);
  text-decoration: underline;
  text-underline-offset: 2px;
  cursor: pointer;
}
.reset-filters:hover { color: var(--accent); }

/* ---------- results ---------- */
.results { margin-top: 0; min-width: 0; }
.results__header { margin-bottom: 14px; }
.results__count {
  font-size: 15px;
  font-weight: 600;
}

.results-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.model-row {
  display: flex;
  border: 1px solid var(--line);
  background: var(--paper-raised);
}
.model-row__accent { width: 4px; flex: none; }
.model-row--good .model-row__accent { background: var(--good); }
.model-row--tight .model-row__accent { background: var(--warn); }

.model-row__body {
  padding: 18px 20px;
  flex: 1;
  min-width: 0;
}

.model-row__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}
.model-row__head h3 {
  font-size: 16.5px;
  font-weight: 600;
}
.model-row__head .params {
  font-family: var(--font-mono);
  font-weight: 400;
  color: var(--ink-muted);
  font-size: 14px;
  margin-left: 6px;
}

.model-row__meta {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}

.tags { display: flex; gap: 6px; flex-wrap: wrap; }
.tag {
  font-size: 11.5px;
  color: var(--ink-muted);
  border: 1px solid var(--line);
  padding: 2px 8px;
}

.compare-toggle {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 12px;
  color: var(--ink-faint);
  white-space: nowrap;
  cursor: pointer;
}
.compare-toggle input {
  width: 13px;
  height: 13px;
  accent-color: var(--accent);
}
.compare-toggle:hover { color: var(--ink); }
.compare-toggle input:disabled { cursor: not-allowed; }
.compare-toggle:has(input:disabled) { opacity: 0.4; }

.model-row__blurb {
  margin-top: 8px;
  color: var(--ink-muted);
  font-size: 14px;
  max-width: 62ch;
}

.model-row__spec {
  margin-top: 12px;
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--ink);
}
.model-row__spec .spec-label {
  font-family: var(--font-sans);
  color: var(--ink-faint);
  margin-right: 5px;
}

.bench-table {
  margin-top: 10px;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.bench-pill {
  display: inline-flex;
  align-items: baseline;
  gap: 4px;
  border: 1px solid var(--line-strong);
  background: var(--surface);
  padding: 3px 9px;
  font-size: 12px;
  color: var(--ink-muted);
}
.bench-pill b {
  font-family: var(--font-mono);
  font-weight: 500;
  color: var(--ink);
}
.bench-pill__note {
  font-family: var(--font-mono);
  font-weight: 400;
  color: var(--ink-faint);
}
.bench-pill--match {
  border-color: var(--accent);
  color: var(--accent);
}
.bench-pill--match b { color: var(--accent); }
.bench-pill__flag {
  color: var(--warn);
  cursor: help;
}

.fit-gauge {
  margin-top: 12px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.fit-gauge__track {
  height: 6px;
  flex: 1;
  max-width: 260px;
  background: var(--line);
  position: relative;
}
.fit-gauge__fill {
  position: absolute;
  inset: 0 auto 0 0;
  background: var(--good);
}
.model-row--tight .fit-gauge__fill { background: var(--warn); }
.fit-gauge__label {
  font-size: 12.5px;
  color: var(--ink-muted);
  font-family: var(--font-mono);
}

.runtime-row {
  margin-top: 16px;
  border-top: 1px solid var(--line);
  padding-top: 14px;
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}
.runtime-label {
  font-size: 12.5px;
  color: var(--ink-faint);
}
.pill {
  font-size: 12px;
  font-family: var(--font-mono);
  border: 1px solid var(--line-strong);
  background: var(--surface);
  padding: 3px 9px;
}

.links-row {
  margin-top: 10px;
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
}
.links-row a {
  font-size: 13px;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 5px;
}
.links-row a:hover { text-decoration: underline; }
.links-row svg { flex: none; }

.install-row {
  margin-top: 10px;
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}
.install-cmd {
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--ink);
  background: var(--paper);
  border: 1px solid var(--line);
  padding: 4px 9px;
}
.copy-btn {
  font-family: var(--font-sans);
  font-size: 12px;
  color: var(--ink-muted);
  background: var(--surface);
  border: 1px solid var(--line-strong);
  padding: 4px 10px;
  cursor: pointer;
}
.copy-btn:hover { border-color: var(--accent); color: var(--accent); }
.copy-btn.is-copied { border-color: var(--good); color: var(--good); }

/* ---------- empty state ---------- */
.empty-state {
  border: 1px dashed var(--line-strong);
  padding: 28px 24px;
  color: var(--ink-muted);
  font-size: 14.5px;
  max-width: 60ch;
}
.empty-state strong { color: var(--ink); }

/* ---------- excluded / won't fit ---------- */
.excluded {
  margin-top: 20px;
  border-top: 1px solid var(--line);
  padding-top: 14px;
}
.excluded summary {
  cursor: pointer;
  font-size: 13.5px;
  color: var(--ink-muted);
  font-weight: 500;
}
.excluded-list {
  margin-top: 12px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.excluded-row {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  font-size: 13px;
  color: var(--ink-faint);
  padding: 8px 0;
  border-bottom: 1px solid var(--line);
}
.excluded-row .name { color: var(--ink-muted); }
.excluded-row .need { font-family: var(--font-mono); }

/* ---------- footnote ---------- */
.footnote {
  margin-top: 56px;
  padding-top: 24px;
  border-top: 1px solid var(--line-strong);
}
.footnote__prose {
  max-width: 66ch;
}
.footnote__title {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 12px;
}
.footnote p {
  color: var(--ink-muted);
  font-size: 14px;
  margin-bottom: 12px;
}

.site-footer {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px 40px;
  color: var(--ink-faint);
  font-size: 12.5px;
}

/* ---------- compare tray ---------- */
.compare-tray[hidden] { display: none; }
.compare-tray {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 40;
  background: var(--tray-bg);
  color: var(--tray-fg);
  /* --tray-bg is fixed near-black — in light mode that alone reads as a
     floating bar, but on a dark page the two are close enough in value to
     blur together. A shadow (not a background-dependent border) keeps the
     edge visible regardless of what's directly behind it. */
  box-shadow: 0 -8px 20px rgba(0, 0, 0, 0.35);
  padding: 14px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}
.compare-tray__items {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.compare-chip {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 12.5px;
  background: rgba(255, 255, 255, 0.1);
  padding: 4px 6px 4px 10px;
  white-space: nowrap;
}
.compare-chip button {
  background: none;
  border: none;
  color: rgba(255, 255, 255, 0.6);
  font-size: 14px;
  line-height: 1;
  cursor: pointer;
  padding: 2px;
}
.compare-chip button:hover { color: #fff; }
.compare-tray__actions {
  display: flex;
  align-items: center;
  gap: 16px;
  flex: none;
}
.compare-tray__clear {
  background: none;
  border: none;
  color: rgba(255, 255, 255, 0.6);
  font-size: 13px;
  text-decoration: underline;
  cursor: pointer;
  padding: 0;
}
.compare-tray__clear:hover { color: #fff; }
.compare-tray__open {
  background: var(--accent-solid);
  color: #fff;
  border: none;
  font-size: 13.5px;
  font-weight: 500;
  padding: 9px 18px;
  cursor: pointer;
}
.compare-tray__open:disabled {
  background: rgba(255, 255, 255, 0.15);
  color: rgba(255, 255, 255, 0.5);
  cursor: not-allowed;
}

/* ---------- compare overlay ---------- */
.compare-overlay[hidden] { display: none; }
.compare-overlay {
  position: fixed;
  inset: 0;
  z-index: 50;
  background: rgba(18, 34, 43, 0.55);
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 40px 24px;
  overflow-y: auto;
}
.compare-panel {
  background: var(--paper-raised);
  border: 1px solid var(--line-strong);
  max-width: 1100px;
  width: 100%;
}
.compare-panel__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  border-bottom: 1px solid var(--line);
}
.compare-panel__header h2 {
  font-size: 17px;
  font-weight: 600;
}
.compare-panel__close {
  background: none;
  border: 1px solid var(--line-strong);
  color: var(--ink-muted);
  font-size: 13px;
  padding: 6px 14px;
  cursor: pointer;
}
.compare-panel__close:hover { border-color: var(--accent); color: var(--accent); }
.compare-panel__body {
  padding: 8px 24px 24px;
  overflow-x: auto;
}

.compare-table {
  border-collapse: collapse;
  width: 100%;
  min-width: 560px;
}
.compare-table th,
.compare-table td {
  text-align: left;
  vertical-align: top;
  padding: 12px 16px 12px 0;
  border-bottom: 1px solid var(--line);
  font-size: 13.5px;
  min-width: 180px;
}
.compare-table th[scope="row"] {
  color: var(--ink-faint);
  font-weight: 500;
  font-size: 12.5px;
  white-space: nowrap;
  min-width: auto;
  padding-right: 20px;
}
.compare-table thead th {
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
  border-bottom: 1px solid var(--line-strong);
}
.compare-table thead th .params {
  font-family: var(--font-mono);
  font-weight: 400;
  color: var(--ink-muted);
  font-size: 13px;
  margin-left: 5px;
}
.compare-table .compare-sub {
  font-family: var(--font-mono);
  color: var(--ink-muted);
  font-size: 12.5px;
  margin-top: 2px;
}
.compare-table .compare-bench {
  display: block;
  font-size: 12.5px;
  margin-top: 3px;
}
.compare-table .compare-bench:first-child { margin-top: 0; }
.compare-table .compare-links {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.compare-table .compare-status--good { color: var(--good); }
.compare-table .compare-status--tight { color: var(--warn); }
.compare-table .compare-status--over { color: var(--over); }

/* ---------- mobile density ---------- */
@media (max-width: 560px) {
  /* The gauge track and its label were sharing one flex row — on a phone the
     label text alone is nearly as wide as the card, so the track (flex:1)
     got squeezed down to a sliver and the bar effectively disappeared.
     Stack them instead so the bar always renders at full, readable width. */
  .fit-gauge {
    flex-direction: column;
    align-items: stretch;
    gap: 6px;
  }
  .fit-gauge__track {
    /* flex:1 sets flex-basis:0%, which targets the main axis — once the
       container switches to column, that's height, so flex:1 would silently
       collapse the bar's explicit height:6px to zero. Drop it now that the
       track no longer needs to share horizontal space with the label. */
    flex: none;
    max-width: none;
  }

  .panel { padding: 18px; }
  .model-row__body { padding: 16px; }
  .model-row__spec { gap: 8px 14px; }
  .runtime-row, .links-row, .install-row { gap: 7px; }
  .bench-table { gap: 5px; }

  .compare-toggle { font-size: 11.5px; }
}