/* News Category Classifier -- light/dark aware, no external assets. */

:root {
  --bg: #f7f7f5;
  --surface: #ffffff;
  --surface-2: #f0f0ed;
  --border: #e2e2dd;
  --text: #1c1c1a;
  --muted: #6b6b64;
  --accent: #b5501f;
  --accent-fg: #ffffff;
  --focus: #b5501f;

  --sports: #2f7a4d;
  --politics: #8a4bb8;
  --business: #b5501f;
  --technology: #2563a8;

  --radius: 10px;
  --shadow: 0 1px 2px rgba(0, 0, 0, .05), 0 4px 16px rgba(0, 0, 0, .04);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #16161a;
    --surface: #1e1e23;
    --surface-2: #26262c;
    --border: #33333b;
    --text: #ececf0;
    --muted: #9a9aa5;
    --accent: #e07850;
    --accent-fg: #1a1a1e;
    --focus: #e07850;

    --sports: #5cc184;
    --politics: #b98ee0;
    --business: #e07850;
    --technology: #6aa8e8;
    --shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 4px 16px rgba(0, 0, 0, .25);
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.55 ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto,
        "Helvetica Neue", Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}

.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

.app {
  max-width: 46rem;
  margin: 0 auto;
  padding: 3rem 1.25rem 4rem;
}

/* --- masthead --- */

.masthead { margin-bottom: 1.75rem; }

.masthead h1 {
  margin: 0;
  font-size: 1.7rem;
  font-weight: 640;
  letter-spacing: -.02em;
}

.tagline {
  margin: .35rem 0 0;
  color: var(--muted);
  font-size: .95rem;
}

.status {
  margin: .9rem 0 0;
  padding: .6rem .8rem;
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: 6px;
  background: var(--surface);
  color: var(--muted);
  font-size: .875rem;
}

/* --- composer --- */

.composer {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1rem;
}

.samples {
  display: flex;
  flex-wrap: wrap;
  gap: .4rem;
  margin-bottom: .85rem;
}

.chip {
  border: 1px solid var(--border);
  background: var(--surface-2);
  color: var(--muted);
  border-radius: 999px;
  padding: .28rem .7rem;
  font-size: .8rem;
  font-family: inherit;
  cursor: pointer;
  transition: color .12s, border-color .12s;
}

.chip:hover { color: var(--text); border-color: var(--muted); }

textarea {
  width: 100%;
  resize: vertical;
  min-height: 9rem;
  padding: .8rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg);
  color: var(--text);
  font: inherit;
  line-height: 1.6;
}

textarea:focus-visible,
.chip:focus-visible,
.btn:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 2px;
}

.composer-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-top: .75rem;
}

.counter { color: var(--muted); font-size: .8rem; font-variant-numeric: tabular-nums; }

.actions { display: flex; gap: .5rem; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  border-radius: 7px;
  padding: .5rem .95rem;
  font: inherit;
  font-size: .9rem;
  font-weight: 520;
  cursor: pointer;
  border: 1px solid transparent;
  transition: opacity .12s;
}

.btn.primary { background: var(--accent); color: var(--accent-fg); }
.btn.ghost { background: transparent; color: var(--muted); border-color: var(--border); }
.btn:hover:not(:disabled) { opacity: .88; }
.btn:disabled { opacity: .5; cursor: not-allowed; }

kbd {
  font: inherit;
  font-size: .74rem;
  opacity: .7;
  border: 1px solid currentColor;
  border-radius: 4px;
  padding: 0 .28rem;
}

/* --- result --- */

.result { margin-top: 1.25rem; }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 4px solid var(--cat, var(--accent));
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.1rem 1.25rem;
}

.card.error { border-left-color: #c0392b; }

.verdict {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.category {
  margin: 0;
  font-size: 1.5rem;
  font-weight: 660;
  letter-spacing: -.015em;
  color: var(--cat, var(--text));
}

.timing { color: var(--muted); font-size: .8rem; font-variant-numeric: tabular-nums; }

.meter {
  margin-top: .85rem;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: .6rem;
  font-size: .8rem;
  color: var(--muted);
}

.track {
  height: 7px;
  border-radius: 999px;
  background: var(--surface-2);
  overflow: hidden;
}

.fill {
  height: 100%;
  border-radius: 999px;
  background: var(--cat, var(--accent));
  width: 0;
  transition: width .45s cubic-bezier(.2, .8, .3, 1);
}

.rationale {
  margin: .9rem 0 0;
  padding-top: .9rem;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: .92rem;
}

.rationale strong { color: var(--text); font-weight: 560; }

/* --- history --- */

.history { margin-top: 2rem; }

.history h2 {
  margin: 0 0 .6rem;
  font-size: .78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .07em;
  color: var(--muted);
}

.history ul { list-style: none; margin: 0; padding: 0; }

.history li {
  display: flex;
  align-items: baseline;
  gap: .75rem;
  padding: .5rem 0;
  border-top: 1px solid var(--border);
  font-size: .875rem;
}

.tag {
  flex: none;
  width: 5.75rem;
  font-weight: 580;
  font-size: .8rem;
  color: var(--cat, var(--text));
}

.snippet {
  color: var(--muted);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.conf { flex: none; margin-left: auto; color: var(--muted); font-variant-numeric: tabular-nums; font-size: .8rem; }

/* --- footer --- */

.footer {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 2.5rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: .8rem;
}

.footer a { color: var(--muted); }

/* --- loading --- */

.spinner {
  width: .85rem;
  height: .85rem;
  border: 2px solid currentColor;
  border-right-color: transparent;
  border-radius: 50%;
  animation: spin .7s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

@media (prefers-reduced-motion: reduce) {
  .spinner { animation-duration: 2s; }
  .fill { transition: none; }
}

/* ---------------------------------------------------------------
   Consistency Lab (/eval)
   --------------------------------------------------------------- */

.app.wide { max-width: 64rem; }

.crumbs { margin: 0 0 .6rem; font-size: .85rem; }
.crumbs a { color: var(--muted); text-decoration: none; }
.crumbs a:hover { color: var(--text); }

.controls {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1rem;
}

.control-row {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
  align-items: flex-start;
}

.control-row.footer-row {
  align-items: center;
  justify-content: space-between;
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
}

.field { display: flex; flex-direction: column; gap: .35rem; }
.field.grow { flex: 1; min-width: 18rem; }

.field > label {
  font-size: .78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--muted);
}

.field input[type="number"] {
  width: 5rem;
  padding: .45rem .6rem;
  border: 1px solid var(--border);
  border-radius: 7px;
  background: var(--bg);
  color: var(--text);
  font: inherit;
}

.hint { font-size: .76rem; color: var(--muted); }

.config-picker { display: flex; flex-direction: column; gap: .3rem; }

.config-option {
  display: flex;
  align-items: flex-start;
  gap: .55rem;
  padding: .4rem .55rem;
  border: 1px solid var(--border);
  border-radius: 7px;
  background: var(--bg);
  cursor: pointer;
}

.config-option:hover { border-color: var(--muted); }
.config-option input { margin-top: .25rem; accent-color: var(--accent); }
.config-option > span { display: flex; flex-direction: column; gap: .1rem; }
.config-option .name {
  display: block;
  font-size: .88rem;
  font-weight: 540;
  text-transform: none;
  letter-spacing: normal;
  color: var(--text);
}
.config-option .desc {
  display: block;
  font-size: .78rem;
  font-weight: 400;
  text-transform: none;
  letter-spacing: normal;
  color: var(--muted);
}

.progress { display: flex; align-items: center; gap: .75rem; margin-top: .9rem; font-size: .8rem; color: var(--muted); }
.progress-track { flex: 1; height: 5px; border-radius: 999px; background: var(--surface-2); overflow: hidden; }
.progress-fill { height: 100%; width: 0; background: var(--accent); border-radius: 999px; transition: width .25s linear; }

/* --- summary --- */

.summary, .matrix-wrap { margin-top: 1.75rem; }

.summary h2, .matrix-wrap h2 {
  margin: 0 0 .7rem;
  font-size: .78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .07em;
  color: var(--muted);
}

.compare { border-collapse: collapse; width: 100%; font-size: .85rem; }

.compare th, .compare td {
  border: 1px solid var(--border);
  padding: .55rem .7rem;
  text-align: left;
  vertical-align: middle;
}

.compare thead th {
  background: var(--surface-2);
  font-weight: 600;
  font-size: .78rem;
}

.compare th.mid, .compare td.mid { text-align: center; width: 7rem; }

.compare td.mid { color: var(--muted); font-variant-numeric: tabular-nums; }

.compare .name { display: block; font-weight: 600; }
.compare .desc { display: block; margin-top: .1rem; font-size: .76rem; color: var(--muted); }

.compare td.metric { min-width: 11rem; }

.compare .bar { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: .55rem; }
.compare .track { height: 7px; border-radius: 999px; background: var(--surface-2); overflow: hidden; }
.compare .fill { height: 100%; width: 0; border-radius: 999px; background: var(--accent); transition: width .4s cubic-bezier(.2,.8,.3,1); }
.compare .fill.acc { background: var(--sports); }
.compare .num { font-variant-numeric: tabular-nums; font-weight: 600; min-width: 2.6rem; text-align: right; }
.compare .of { display: block; margin-top: .25rem; font-size: .72rem; color: var(--muted); }
.compare .awaiting { color: var(--muted); font-style: italic; }

/* --- matrix --- */

.scroll-x { overflow-x: auto; }

.matrix { border-collapse: collapse; width: 100%; font-size: .82rem; }

.matrix th, .matrix td {
  border: 1px solid var(--border);
  padding: .5rem .6rem;
  text-align: left;
  vertical-align: top;
}

.matrix thead th {
  background: var(--surface-2);
  font-weight: 600;
  font-size: .78rem;
  position: sticky;
  top: 0;
}

.matrix .case-col { min-width: 20rem; max-width: 26rem; }
.matrix .case-text { color: var(--text); }
.matrix .case-meta { display: block; margin-top: .3rem; color: var(--muted); font-size: .74rem; }
.matrix .expected { font-weight: 600; }

.cell { text-align: center; min-width: 8rem; }
.cell.ok { background: color-mix(in srgb, var(--sports) 14%, transparent); }
.cell.bad { background: color-mix(in srgb, #c0392b 16%, transparent); }
.cell.wavered {
  background-image: repeating-linear-gradient(
    45deg, transparent, transparent 5px,
    color-mix(in srgb, var(--text) 9%, transparent) 5px,
    color-mix(in srgb, var(--text) 9%, transparent) 10px);
}
.cell .label { display: block; font-weight: 600; }
.cell .agree { display: block; margin-top: .15rem; font-size: .74rem; color: var(--muted); font-variant-numeric: tabular-nums; }
.cell.pending { color: var(--muted); }

.legend { margin-top: .7rem; font-size: .78rem; color: var(--muted); }

.swatch {
  display: inline-block;
  width: .7rem; height: .7rem;
  border-radius: 3px;
  border: 1px solid var(--border);
  vertical-align: -1px;
}
.swatch.ok { background: color-mix(in srgb, var(--sports) 45%, transparent); }
.swatch.bad { background: color-mix(in srgb, #c0392b 45%, transparent); }

/* --- inline prompt comparison (classifier page) --- */

.compare-opts {
  margin-top: .75rem;
  border-top: 1px solid var(--border);
  padding-top: .7rem;
  font-size: .84rem;
}

.compare-opts summary {
  cursor: pointer;
  color: var(--muted);
  font-size: .8rem;
  font-weight: 540;
}

.compare-opts summary:hover { color: var(--text); }

.opts-body {
  display: flex;
  align-items: center;
  gap: .6rem;
  flex-wrap: wrap;
  margin: .7rem 0 .5rem;
}

.opts-body label { font-size: .82rem; color: var(--muted); }

.opts-body input[type="number"] {
  width: 4.5rem;
  padding: .35rem .5rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg);
  color: var(--text);
  font: inherit;
  font-size: .85rem;
}

.compare-opts .hint { display: block; font-size: .78rem; color: var(--muted); line-height: 1.5; }
.compare-opts a { color: var(--muted); }

.card.comparison .category { font-size: 1.15rem; }

.verdict-note {
  margin: .55rem 0 1rem;
  color: var(--muted);
  font-size: .87rem;
}

.compare.inline { margin-top: .2rem; font-size: .84rem; }
.compare.inline td.label-cell { white-space: nowrap; }

.cat-chip {
  display: inline-block;
  padding: .18rem .55rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: .8rem;
  color: var(--cat, var(--text));
  border: 1px solid var(--cat, var(--border));
  background: color-mix(in srgb, var(--cat, var(--accent)) 12%, transparent);
}

.cat-chip.differs { box-shadow: 0 0 0 2px color-mix(in srgb, var(--cat) 25%, transparent); }

.compare.inline td.metric { min-width: 5.5rem; font-variant-numeric: tabular-nums; }
.compare.inline td.metric.wavered { background: color-mix(in srgb, var(--text) 6%, transparent); }
.compare.inline td.metric .num { font-weight: 600; }

/* zero-shot / few-shot tags -- make the compared axis unmissable */

.compare.inline th.tag-col, .compare.inline td.tag-col { width: 6.5rem; }

.shot-tag {
  display: inline-block;
  padding: .15rem .5rem;
  border-radius: 5px;
  font-size: .7rem;
  font-weight: 700;
  letter-spacing: .04em;
  text-transform: uppercase;
  border: 1px solid var(--border);
  color: var(--muted);
}

.shot-tag.few {
  color: var(--accent);
  border-color: color-mix(in srgb, var(--accent) 45%, transparent);
  background: color-mix(in srgb, var(--accent) 10%, transparent);
}

.inline-check {
  display: inline-flex;
  align-items: center;
  gap: .35rem;
  font-size: .82rem;
  color: var(--muted);
  cursor: pointer;
}

.inline-check input { accent-color: var(--accent); }

.effect-extra {
  margin: .8rem 0 0;
  padding-top: .7rem;
  border-top: 1px solid var(--border);
  font-size: .8rem;
  color: var(--muted);
}

/* provenance banner for the evaluation set */

.case-set {
  margin: .9rem 0 0;
  padding: .65rem .8rem;
  border: 1px solid var(--border);
  border-left: 3px solid var(--muted);
  border-radius: 6px;
  background: var(--surface);
  color: var(--muted);
  font-size: .82rem;
  line-height: 1.5;
}

.case-set strong { color: var(--text); font-weight: 600; }
.case-set.synthetic { border-left-color: var(--business); }
.case-set.broken { border-left-color: #c0392b; }

/* "Why this label" column in the inline comparison */

.compare.inline tr.why-row td.why {
  border-top: 0;
  padding: .1rem .7rem .7rem;
  color: var(--muted);
  font-size: .82rem;
  line-height: 1.5;
  white-space: normal;
}

.compare.inline .why-label {
  font-weight: 600;
  color: var(--text);
}

.compare.inline .why-label.alt { color: var(--business); }

.compare.inline .why-dissent {
  display: block;
  margin-top: .45rem;
  padding-top: .45rem;
  border-top: 1px dashed var(--border);
}

/* Keep each configuration visually joined to its reason row. */
.compare.inline tbody tr:not(.why-row) td { border-bottom: 0; }