:root {
  --paper: #eef1f4;
  --panel: #f9fafb;
  --white: #ffffff;
  --ink: #152033;
  --muted: #637083;
  --line: #cbd3dd;
  --line-dark: #9da9b8;
  --blue: #2457d6;
  --blue-dark: #183b93;
  --blue-soft: #dfe8ff;
  --orange: #d76816;
  --orange-soft: #fff0e2;
  --green: #14734b;
  --green-soft: #def3e8;
  --red: #a83535;
  --red-soft: #f9e5e4;
  --mono: "IBM Plex Mono", Consolas, monospace;
  --sans: "IBM Plex Sans", "Segoe UI", sans-serif;
  --max: 1440px;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { background: var(--paper); color: var(--ink); }
body { margin: 0; font: 16px/1.45 var(--sans); }
button, input, select { font: inherit; color: inherit; }
button, select { cursor: pointer; }
button:focus-visible, input:focus-visible, select:focus-visible {
  outline: 3px solid rgba(36, 87, 214, 0.28);
  outline-offset: 2px;
}
.vh {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

.topbar {
  height: 58px;
  border-bottom: 1px solid var(--line);
  background: rgba(249, 250, 251, 0.95);
  display: flex;
  align-items: center;
  padding: 0 max(20px, calc((100vw - var(--max)) / 2));
  gap: 18px;
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(10px);
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  text-decoration: none;
  font-weight: 700;
  letter-spacing: 0.055em;
  font-size: 14px;
}
.brand-mark {
  width: 24px;
  height: 24px;
  border: 2px solid var(--ink);
  padding: 3px;
  display: flex;
  align-items: flex-end;
  gap: 2px;
}
.brand-mark i { display: block; flex: 1; background: var(--blue); }
.brand-mark i:nth-child(1) { height: 40%; }
.brand-mark i:nth-child(2) { height: 95%; }
.brand-mark i:nth-child(3) { height: 65%; }
.data-status { margin: 0 0 0 auto; color: var(--muted); font-size: 13px; }
.method-link { color: var(--blue-dark); font-size: 13px; font-weight: 600; text-underline-offset: 3px; }

main { max-width: var(--max); margin: auto; padding: 0 20px 54px; }
.hero { padding: 58px 0 30px; border-bottom: 1px solid var(--line-dark); }
.hero-kicker, .results-label {
  color: var(--blue);
  font-weight: 600;
  margin: 0 0 9px;
  font-size: 13px;
}
.hero h1 {
  font-size: clamp(38px, 6vw, 76px);
  line-height: 0.98;
  letter-spacing: -0.055em;
  margin: 0;
  max-width: 900px;
  font-weight: 600;
}
.hero-copy {
  max-width: 650px;
  margin: 24px 0 0;
  color: var(--muted);
  font-size: 18px;
}

.mode-switch {
  display: flex;
  width: fit-content;
  border: 1px solid var(--line-dark);
  border-top: 0;
  background: var(--panel);
}
.mode-switch button {
  border: 0;
  border-right: 1px solid var(--line-dark);
  background: transparent;
  padding: 11px 22px;
  font-weight: 500;
}
.mode-switch button:last-child { border-right: 0; }
.mode-switch button[aria-selected="true"] { background: var(--ink); color: white; }

.workspace {
  display: grid;
  grid-template-columns: minmax(280px, 350px) minmax(0, 1fr);
  align-items: start;
  gap: 0;
  margin-top: 28px;
  border: 1px solid var(--line-dark);
  background: var(--panel);
  min-height: 720px;
}
.setup-panel {
  padding: 24px;
  border-right: 1px solid var(--line-dark);
  position: sticky;
  top: 78px;
}
.panel-heading, .budget-head, .results-head, .card-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
}
.panel-heading { margin-bottom: 22px; }
.panel-heading h2, .results-head h2 { margin: 0; font-size: 22px; letter-spacing: -0.025em; }
.text-button {
  border: 0;
  background: transparent;
  color: var(--blue-dark);
  font-size: 13px;
  text-decoration: underline;
  text-underline-offset: 3px;
  padding: 3px;
}
.field { display: flex; flex-direction: column; gap: 6px; min-width: 0; }
.field > span, .explore-filters > label > span, .size-filter > span {
  color: var(--muted);
  font-size: 12px;
  font-weight: 500;
}
.field select, .explore-filters select, .search input {
  width: 100%;
  background: var(--white);
  border: 1px solid var(--line-dark);
  border-radius: 0;
  padding: 10px 34px 10px 11px;
}
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 12px; }
.choice-group { border: 0; padding: 0; margin: 25px 0 0; }
.choice-group legend { font-weight: 600; font-size: 14px; margin-bottom: 10px; }
.choice-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 7px; }
.choice-grid button {
  text-align: left;
  border: 1px solid var(--line);
  background: var(--white);
  min-height: 68px;
  padding: 10px;
}
.choice-grid button:first-child { grid-column: 1 / -1; }
.choice-grid button[aria-pressed="true"] {
  border-color: var(--blue);
  box-shadow: inset 4px 0 0 var(--blue);
  background: #f5f8ff;
}
.choice-grid b, .choice-grid span { display: block; }
.choice-grid b { font-size: 14px; }
.choice-grid span { color: var(--muted); font-size: 11px; margin-top: 2px; }
.choice-group.compact { margin-top: 20px; }
.segmented { display: grid; grid-template-columns: repeat(3, 1fr); }
.segmented button {
  border: 1px solid var(--line-dark);
  border-right: 0;
  background: var(--white);
  padding: 8px 5px;
  font-size: 12px;
}
.segmented button:last-child { border-right: 1px solid var(--line-dark); }
.segmented button[aria-pressed="true"] { background: var(--blue-soft); color: var(--blue-dark); font-weight: 600; }
.check-row {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  border-top: 1px solid var(--line);
  margin-top: 22px;
  padding-top: 17px;
  cursor: pointer;
}
.check-row input { margin-top: 3px; accent-color: var(--blue); }
.check-row b, .check-row small { display: block; }
.check-row b { font-size: 13px; }
.check-row small { color: var(--muted); font-size: 11px; margin-top: 2px; }
.budget { margin-top: 22px; padding: 14px; background: #e7ebf0; border-left: 3px solid var(--ink); }
.budget h3 { margin: 0; font-size: 13px; }
.budget strong { font: 500 13px var(--mono); }
.budget-track { height: 8px; background: #c6cdd6; margin: 10px 0 8px; overflow: hidden; }
.budget-track i { display: block; height: 100%; width: 0; background: var(--blue); transition: width 250ms ease; }
.budget p { margin: 0; color: var(--muted); font-size: 11px; }

.results-panel { min-width: 0; padding: 26px; }
.results-panel[aria-busy="true"] { opacity: 0.72; }
.results-head { align-items: flex-end; }
.results-label { margin-bottom: 4px; }
.search { width: min(360px, 48%); }
.notice {
  margin: 18px 0;
  border-left: 3px solid var(--blue);
  background: var(--blue-soft);
  padding: 10px 13px;
  color: #30415f;
  font-size: 12px;
}
.notice.warning { border-color: var(--orange); background: var(--orange-soft); color: #673913; }
.catalog-toolbar { margin: 0 0 18px; }
.explore-filters {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 8px;
}
.explore-filters > label, .size-filter { display: flex; flex-direction: column; gap: 5px; }
.explore-filters select, #size-toggle {
  padding: 8px 28px 8px 9px;
  font-size: 13px;
}
.size-filter { position: relative; min-width: 0; }
#size-toggle {
  width: 100%;
  display: flex;
  align-items: center;
  text-align: left;
  background: var(--white);
  border: 1px solid var(--line-dark);
  background-image: linear-gradient(45deg, transparent 50%, var(--ink) 50%),
    linear-gradient(135deg, var(--ink) 50%, transparent 50%);
  background-position: calc(100% - 16px) calc(50% - 2px), calc(100% - 11px) calc(50% - 2px);
  background-size: 5px 5px, 5px 5px;
  background-repeat: no-repeat;
}
#size-toggle strong {
  font-weight: 500;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
#size-toggle[aria-expanded="true"] { border-color: var(--ink); }
.size-menu {
  position: absolute;
  z-index: 12;
  left: 0;
  right: 0;
  top: calc(100% - 1px);
  width: 100%;
  box-sizing: border-box;
  background: var(--white);
  border: 1px solid var(--ink);
  max-height: min(360px, 70vh);
  overflow: auto;
}
.size-option {
  display: flex;
  flex-direction: row;
  align-items: flex-start;
  gap: 8px;
  padding: 6px 9px;
  cursor: pointer;
  font-size: 12px;
  line-height: 1.25;
}
.size-option:hover { background: #f5f8ff; }
.size-option input {
  flex: 0 0 auto;
  margin: 1px 0 0;
  accent-color: var(--blue);
  width: 14px;
  height: 14px;
}
.size-option span {
  display: flex;
  flex-direction: column;
  gap: 1px;
  min-width: 0;
  color: var(--ink);
  font-weight: 500;
}
.size-option small {
  color: var(--muted);
  font-size: 11px;
  font-weight: 400;
  margin-left: 0;
}

.result-list { display: flex; flex-direction: column; border-top: 1px solid var(--line-dark); }
.model-card {
  display: grid;
  grid-template-columns: minmax(230px, 1.4fr) minmax(330px, 1fr);
  gap: 20px;
  padding: 18px 4px 16px;
  border-bottom: 1px solid var(--line);
  cursor: pointer;
}
.model-card:hover { background: linear-gradient(90deg, transparent, rgba(36, 87, 214, 0.035), transparent); }
.model-card:focus-visible { outline: 2px solid var(--blue); outline-offset: -2px; }
.rank {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  width: 28px;
  height: 28px;
  background: var(--ink);
  color: white;
  font: 500 12px var(--mono);
  flex: none;
}
.model-title { min-width: 0; flex: 1; }
.model-title h3 { margin: 0; font-size: 18px; overflow-wrap: anywhere; }
.model-title p { margin: 3px 0 0; color: var(--muted); font-size: 12px; }
.source-icons { display: flex; align-items: center; gap: 6px; flex: none; }
.source-icon {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 24px;
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--ink);
  flex: none;
}
.source-icon:hover { border-color: var(--blue); background: var(--blue-soft); color: var(--blue-dark); }
.source-emoji { font-size: 14px; line-height: 1; }
.source-badge {
  position: absolute;
  bottom: -4px;
  right: -4px;
  width: 12px;
  height: 12px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--white);
  border: 1px solid var(--white);
}
.source-badge svg { display: block; }
.fit-badge, .confidence, .signal {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  font-size: 11px;
  font-weight: 600;
  padding: 3px 7px;
}
.fit-badge.full { background: var(--green-soft); color: var(--green); }
.fit-badge.partial { background: var(--orange-soft); color: var(--orange); }
.fit-badge.none, .fit-badge.context { background: var(--red-soft); color: var(--red); }
.why { margin: 8px 0 0 42px; color: #3f4b5e; font-size: 13px; max-width: 66ch; }
.library-desc {
  margin: 8px 0 0 42px;
  color: var(--ink);
  font-size: 13px;
  font-weight: 400;
  line-height: 1.4;
  max-width: 70ch;
}
.signals { display: flex; flex-wrap: wrap; gap: 5px; margin: 8px 0 0 42px; }
.signal { border: 1px solid var(--line); color: var(--muted); background: var(--white); font-weight: 500; }
.metrics { display: grid; grid-template-columns: repeat(2, 1fr); border: 1px solid var(--line); }
.metric { padding: 10px 12px; min-height: 62px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.metric:nth-child(2n) { border-right: 0; }
.metric:nth-last-child(-n+2) { border-bottom: 0; }
.metric span, .metric small { display: block; color: var(--muted); font-size: 10px; }
.metric strong { display: block; font: 500 15px var(--mono); margin: 2px 0; }
.headroom { height: 4px; background: #dce1e7; margin-top: 6px; }
.headroom i { display: block; height: 100%; background: var(--green); }
.card-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 12px;
}
.run-command {
  display: flex;
  flex: 1;
  min-width: 0;
  border: 1px solid var(--line-dark);
  background: #edf0f4;
}
.run-command code { padding: 7px 9px; font: 12px var(--mono); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.run-command button {
  border: 0;
  border-left: 1px solid var(--line-dark);
  background: var(--white);
  padding: 6px 12px;
  font-size: 11px;
  font-weight: 600;
  flex: none;
}
.library-readme {
  grid-column: 1 / -1;
  margin: 4px 0 0;
  padding: 4px 0 0;
  border-top: 1px solid var(--line);
  font-size: 13px;
  line-height: 1.5;
  color: var(--ink);
}
details.library-readme summary {
  cursor: pointer;
  font-weight: 600;
  font-size: 12px;
  color: var(--muted);
}
details.library-readme[open] summary { margin-bottom: 4px; }
.library-readme > *:first-child { margin-top: 12px; }
.library-readme h1, .library-readme h2, .library-readme h3, .library-readme h4 {
  margin: 1em 0 0.35em;
  letter-spacing: -0.02em;
  font-weight: 600;
  line-height: 1.25;
}
.library-readme h1 { font-size: 18px; }
.library-readme h2 { font-size: 16px; }
.library-readme h3, .library-readme h4 { font-size: 14px; }
.library-readme p { margin: 0 0 0.7em; }
.library-readme ul, .library-readme ol { margin: 0 0 0.7em; padding-left: 1.25em; }
.library-readme li { margin: 0.15em 0; }
.library-readme blockquote {
  margin: 0 0 0.7em;
  padding: 0 0 0 12px;
  border-left: 3px solid var(--line-dark);
  color: var(--muted);
}
.library-readme hr { border: 0; border-top: 1px solid var(--line); margin: 0.8em 0; }
.library-readme img { display: block; max-width: min(100%, 360px); height: auto; margin: 8px 0 12px; }
.library-readme a { color: var(--blue-dark); }
.library-readme code {
  font: 12px var(--mono);
  background: #eef1f5;
  padding: 1px 5px;
}
.library-readme pre {
  margin: 0 0 0.8em;
  padding: 10px 12px;
  background: #eef1f5;
  overflow: auto;
  white-space: pre-wrap;
}
.library-readme pre code { padding: 0; background: transparent; }
.library-readme table {
  width: 100%;
  border-collapse: collapse;
  font-size: 12px;
  margin: 0 0 0.8em;
}
.library-readme th, .library-readme td {
  border: 1px solid var(--line);
  padding: 5px 7px;
  text-align: left;
  vertical-align: top;
  overflow-wrap: anywhere;
}
.library-readme th { background: #eef1f5; font-weight: 600; }
.library-link { margin: 12px 0 0; font-size: 12px; }
.library-link a { color: var(--blue-dark); }
.confidence { background: #e7ebf0; color: var(--muted); flex: none; white-space: nowrap; }
.load-more {
  display: block;
  margin: 20px auto 0;
  border: 1px solid var(--ink);
  background: var(--white);
  padding: 10px 22px;
  font-weight: 600;
}
.result-count { text-align: center; color: var(--muted); font-size: 12px; }
.empty { text-align: center; padding: 68px 20px; border-top: 1px solid var(--line-dark); }
.empty h3 { margin: 0; }
.empty p { color: var(--muted); }

.method-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border: 1px solid var(--line-dark);
  border-top: 0;
  background: #e4e8ed;
}
.method-strip div { padding: 17px; border-right: 1px solid var(--line-dark); }
.method-strip div:last-child { border-right: 0; }
.method-strip strong, .method-strip span { display: block; }
.method-strip strong { font-size: 12px; margin-bottom: 4px; }
.method-strip span { color: var(--muted); font-size: 11px; }
footer {
  border-top: 1px solid var(--line-dark);
  max-width: var(--max);
  margin: auto;
  padding: 22px 20px 42px;
  display: flex;
  justify-content: space-between;
  gap: 30px;
  color: var(--muted);
  font-size: 11px;
}
footer p { margin: 0; max-width: 70ch; }
noscript { display: block; padding: 20px; background: var(--red-soft); color: var(--red); }

@media (max-width: 1040px) {
  .workspace { grid-template-columns: 300px minmax(0, 1fr); }
  .model-card { grid-template-columns: 1fr; }
  .explore-filters { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 760px) {
  .data-status { display: none; }
  .hero { padding-top: 38px; }
  .hero h1 { font-size: clamp(38px, 12vw, 58px); }
  .workspace { display: block; border-left: 0; border-right: 0; }
  .setup-panel { position: static; border-right: 0; border-bottom: 1px solid var(--line-dark); }
  .results-panel { padding: 22px 16px; }
  .results-head { display: block; }
  .search { width: 100%; margin-top: 14px; }
  .method-strip { grid-template-columns: 1fr 1fr; }
  .method-strip div:nth-child(2) { border-right: 0; }
  .method-strip div:nth-child(-n+2) { border-bottom: 1px solid var(--line-dark); }
  footer { display: block; }
  footer p + p { margin-top: 10px; }
}
@media (max-width: 480px) {
  main { padding-left: 12px; padding-right: 12px; }
  .topbar { padding: 0 12px; }
  .method-link { font-size: 11px; }
  .choice-grid { grid-template-columns: 1fr; }
  .choice-grid button:first-child { grid-column: auto; }
  .field-row, .explore-filters { grid-template-columns: 1fr; }
  .card-heading { align-items: flex-start; }
  .model-card { gap: 16px; }
  .why, .signals, .library-desc { margin-left: 0; }
  .confidence { margin-left: 0; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition: none !important; }
}

/* --- Blog --- */
.blog-index-head { padding: 48px 0 24px; border-bottom: 1px solid var(--line-dark); }
.blog-index-head h1 { font-size: clamp(32px, 5vw, 56px); letter-spacing: -0.04em; margin: 0; font-weight: 600; }
.blog-list { list-style: none; margin: 32px 0; padding: 0; display: flex; flex-direction: column; gap: 24px; }
.blog-list li { border-bottom: 1px solid var(--line); padding-bottom: 24px; }
.blog-list a { color: var(--ink); text-decoration: none; font-size: 22px; font-weight: 600; }
.blog-list a:hover { color: var(--blue-dark); }
.blog-list-meta { color: var(--muted); font-size: 13px; margin: 6px 0 8px; }
.blog-list-desc { color: var(--muted); font-size: 14px; max-width: 70ch; margin: 0; }
.blog-empty { color: var(--muted); padding: 32px 0; }

.blog-post { max-width: 720px; }
.blog-post-head { padding: 40px 0 20px; border-bottom: 1px solid var(--line-dark); }
.blog-post-head h1 { font-size: clamp(30px, 5vw, 48px); letter-spacing: -0.04em; margin: 0; font-weight: 600; }
.blog-post-meta { color: var(--muted); font-size: 13px; margin: 12px 0 0; }
.blog-post-body { padding: 32px 0; font-size: 16px; line-height: 1.6; }
.blog-post-body p { margin: 0 0 16px; }
.blog-post-body a { color: var(--blue-dark); }
.blog-post-body h2 { font-size: 24px; margin: 32px 0 12px; }
.blog-post-body h3 { font-size: 19px; margin: 28px 0 10px; }
.blog-post-body code { font-family: var(--mono); background: var(--panel); padding: 2px 5px; border-radius: 3px; font-size: 14px; }
.blog-post-body pre { background: var(--panel); border: 1px solid var(--line); padding: 14px 16px; border-radius: 6px; overflow-x: auto; }
.blog-post-body pre code { background: none; padding: 0; }

/* --- Comments --- */
.comments { border-top: 1px solid var(--line-dark); padding: 32px 0 48px; }
.comments h2 { font-size: 20px; margin: 0 0 18px; }
.comment-list { list-style: none; margin: 0 0 24px; padding: 0; display: flex; flex-direction: column; gap: 16px; }
.comment { border: 1px solid var(--line); border-radius: 8px; padding: 14px 16px; background: var(--panel); }
.comment-meta { font-size: 12px; color: var(--muted); margin: 0 0 6px; font-weight: 600; }
.comment-body { font-size: 14px; margin: 0; white-space: pre-wrap; }
.comment-reply { margin-left: 28px; margin-top: 12px; }
.comment-empty { color: var(--muted); font-size: 14px; margin: 0 0 24px; }
.comment-form { display: flex; flex-direction: column; gap: 10px; max-width: 520px; }
.comment-form input, .comment-form textarea {
  font: inherit;
  padding: 9px 11px;
  border: 1px solid var(--line-dark);
  border-radius: 6px;
  background: var(--white);
  color: var(--ink);
}
.comment-form textarea { min-height: 90px; resize: vertical; }
.comment-form button {
  align-self: flex-start;
  background: var(--blue);
  color: var(--white);
  border: none;
  padding: 9px 18px;
  border-radius: 6px;
  font-weight: 600;
  font-size: 14px;
}
.comment-form button:hover { background: var(--blue-dark); }
.comment-form button:disabled { opacity: 0.6; cursor: default; }
.comment-status { font-size: 13px; color: var(--muted); min-height: 18px; }
.comment-status[data-state="error"] { color: var(--red); }
.comment-status[data-state="success"] { color: var(--green); }