/* Notes to Quiz - light and dark, mobile first. */
:root {
  --bg: #f7f7fb; --panel: #ffffff; --panel-2: #f1f1f8; --line: #e1e1ec; --ink: #191a2e; --ink-2: #4b4d66; --muted: #6b6d85;
  --accent: #4338ca; --accent-ink: #ffffff; --accent-soft: #e8e7fb; --accent-2: #3730a3;
  --good: #15803d; --good-soft: #e3f5ea; --warn: #a15c07; --warn-soft: #fdf1dc; --bad: #b42318; --bad-soft: #fde8e6;
  --mark: #ffe58a; --shadow: 0 1px 2px rgba(20,20,50,.06), 0 6px 20px rgba(20,20,50,.06);
  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color-scheme: light;
}
[data-theme="dark"] {
  --bg: #12131c; --panel: #1b1c28; --panel-2: #232434; --line: #313247; --ink: #ececf6; --ink-2: #c0c1d6; --muted: #9a9cb5;
  --accent: #8b87f5; --accent-ink: #12131c; --accent-soft: #2a2950; --accent-2: #a9a6ff;
  --good: #4ade80; --good-soft: #163522; --warn: #f5b450; --warn-soft: #3a2c12; --bad: #f87171; --bad-soft: #3d1b1b;
  --mark: #6b5a12; --shadow: 0 1px 2px rgba(0,0,0,.3), 0 6px 20px rgba(0,0,0,.25);
  color-scheme: dark;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 16px/1.55 var(--sans); overflow-x: hidden; }
a { color: var(--accent); }
button, input, select, textarea { font: inherit; color: inherit; }
.hidden { display: none !important; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip { position: absolute; left: -999px; top: 8px; background: var(--panel); padding: 8px 12px; border-radius: 8px; z-index: 50; }
.skip:focus { left: 8px; }
.muted { color: var(--muted); }
.small { font-size: 13.5px; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

/* header */
.top { position: sticky; top: 0; z-index: 20; background: color-mix(in srgb, var(--bg) 88%, transparent); backdrop-filter: blur(8px); border-bottom: 1px solid var(--line); }
.top-in { max-width: 1180px; margin: 0 auto; padding: 10px 16px; display: flex; align-items: center; gap: 12px; justify-content: space-between; }
.brand { display: flex; align-items: center; gap: 9px; color: var(--ink); text-decoration: none; font-weight: 750; letter-spacing: -.01em; }
.brand-mark { width: 30px; height: 30px; color: var(--accent); }
.mark-card { fill: var(--accent); }
.top-nav { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; justify-content: flex-end; }
.ghost-link { color: var(--ink-2); text-decoration: none; font-size: 14px; }
.ghost-link:hover { color: var(--accent); }
.credits { font-size: 13.5px; color: var(--ink-2); background: var(--panel-2); border: 1px solid var(--line); padding: 3px 10px; border-radius: 999px; }
.icon-btn { appearance: none; border: 1px solid var(--line); background: var(--panel); width: 34px; height: 34px; border-radius: 9px; display: grid; place-items: center; cursor: pointer; color: var(--ink-2); }
.icon-btn svg { width: 18px; height: 18px; }

/* buttons */
.btn { appearance: none; border: 1px solid var(--accent); background: var(--accent); color: var(--accent-ink); font-weight: 650; padding: 9px 16px; border-radius: 10px; cursor: pointer; text-decoration: none; display: inline-flex; align-items: center; justify-content: center; gap: 6px; }
.btn:hover:not(:disabled) { background: var(--accent-2); border-color: var(--accent-2); }
.btn:disabled { opacity: .5; cursor: not-allowed; }
.btn.ghost { background: transparent; color: var(--accent); }
.btn.ghost:hover:not(:disabled) { background: var(--accent-soft); color: var(--accent); }
.btn.small { padding: 5px 11px; font-size: 14px; border-radius: 8px; }
.btn.wide { width: 100%; padding: 12px 16px; font-size: 16.5px; }
.link-btn { appearance: none; border: 0; background: none; color: var(--accent); cursor: pointer; padding: 2px 0; font-size: 14px; text-decoration: underline; text-underline-offset: 2px; }
.chip { appearance: none; border: 1px solid var(--line); background: var(--panel); color: var(--ink); border-radius: 999px; padding: 5px 12px; font-size: 14px; cursor: pointer; }
.chip:hover { border-color: var(--accent); }
.chip.on { background: var(--accent-soft); border-color: var(--accent); color: var(--accent); font-weight: 650; }
.chip.free { border-color: var(--accent); color: var(--accent); font-weight: 600; }
.chip.free::after { content: " free"; font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: .04em; margin-left: 4px; background: var(--good-soft); color: var(--good); padding: 1px 6px; border-radius: 999px; }

/* layout */
.wrap { max-width: 1180px; margin: 0 auto; padding: 0 16px 40px; }
.intro { padding: 28px 0 18px; max-width: 820px; }
.intro h1 { font-family: var(--serif); font-size: clamp(30px, 5vw, 44px); line-height: 1.1; margin: 0 0 12px; letter-spacing: -.01em; }
.lede { color: var(--ink-2); font-size: 17px; margin: 0 0 16px; }
.intro-actions { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.grid { display: grid; grid-template-columns: 1fr; gap: 16px; }
@media (min-width: 900px) { .grid { grid-template-columns: 1.35fr 1fr; align-items: start; } }
.panel { background: var(--panel); border: 1px solid var(--line); border-radius: 16px; padding: 16px; box-shadow: var(--shadow); min-width: 0; }
.panel-head { display: flex; align-items: center; justify-content: space-between; gap: 8px; margin-bottom: 10px; }
.panel h2 { font-size: 18px; margin: 0; display: flex; align-items: center; gap: 8px; }
.step { display: inline-grid; place-items: center; width: 24px; height: 24px; border-radius: 50%; background: var(--accent); color: var(--accent-ink); font-size: 13px; }
.field-label { display: block; font-size: 13.5px; font-weight: 650; color: var(--ink-2); margin: 12px 0 5px; }

/* notes input */
.drop { display: flex; flex-direction: column; align-items: center; gap: 2px; border: 2px dashed var(--line); border-radius: 12px; padding: 18px 12px; text-align: center; cursor: pointer; background: var(--panel-2); }
.drop svg { width: 28px; height: 28px; color: var(--accent); }
.drop.over { border-color: var(--accent); background: var(--accent-soft); }
.drop-main { font-weight: 650; }
.drop-sub { font-size: 13px; color: var(--muted); }
textarea, input[type="text"], input[type="number"], select { width: 100%; border: 1px solid var(--line); background: var(--panel); border-radius: 10px; padding: 9px 11px; }
textarea { resize: vertical; min-height: 120px; }
textarea:focus, input:focus, select:focus { border-color: var(--accent); outline: none; box-shadow: 0 0 0 3px var(--accent-soft); }
.busy { font-size: 14px; color: var(--accent); }
.doc-list { list-style: none; padding: 0; margin: 10px 0 0; display: grid; gap: 6px; }
.doc { display: flex; align-items: flex-start; gap: 10px; border: 1px solid var(--line); border-radius: 10px; padding: 8px 10px; }
.doc > div { flex: 1; min-width: 0; }
.doc-kind { font-size: 11px; font-weight: 800; background: var(--accent-soft); color: var(--accent); padding: 2px 6px; border-radius: 6px; margin-top: 2px; }
.doc-name { font-weight: 600; overflow-wrap: anywhere; }
.doc-meta { font-size: 13px; color: var(--muted); }
.doc-warn { font-size: 13px; color: var(--warn); }
.doc-x { appearance: none; border: 0; background: none; color: var(--muted); font-size: 20px; line-height: 1; cursor: pointer; padding: 0 4px; }
.doc-x:hover { color: var(--bad); }
.partbox { margin-top: 6px; }
.preview { margin-top: 10px; border-top: 1px solid var(--line); padding-top: 8px; }
.preview summary, .history summary { cursor: pointer; font-size: 14px; color: var(--ink-2); }
.line-list { list-style: none; margin: 8px 0 0; padding: 0; max-height: 320px; overflow: auto; font-size: 13.5px; border: 1px solid var(--line); border-radius: 10px; }
.line-list li { padding: 3px 10px; border-bottom: 1px solid var(--line); overflow-wrap: anywhere; }
.line-list li:last-child { border-bottom: 0; }
.line-list li.head { font-weight: 700; background: var(--panel-2); }
.line-list li.gap { color: var(--warn); font-style: italic; background: var(--warn-soft); }
.ln { display: inline-block; min-width: 40px; color: var(--muted); font: 12px ui-monospace, SFMono-Regular, Menlo, monospace; }

/* make panel */
.counts { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.count { border: 1px solid var(--line); border-radius: 12px; padding: 8px 10px; display: flex; flex-direction: column; gap: 6px; }
.count-name { font-size: 13.5px; font-weight: 650; color: var(--ink-2); }
.stepper { display: flex; align-items: center; gap: 4px; }
.stepper input { text-align: center; padding: 6px 4px; -moz-appearance: textfield; }
.stepper input::-webkit-outer-spin-button, .stepper input::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
.step-btn { appearance: none; border: 1px solid var(--line); background: var(--panel-2); width: 36px; height: 36px; border-radius: 9px; cursor: pointer; font-size: 18px; flex: none; }
.step-btn:hover { border-color: var(--accent); color: var(--accent); }
.seg { display: inline-flex; border: 1px solid var(--line); border-radius: 10px; overflow: hidden; width: 100%; }
.seg-btn { appearance: none; flex: 1; border: 0; background: var(--panel); padding: 8px 6px; cursor: pointer; font-size: 14px; color: var(--ink-2); }
.seg-btn + .seg-btn { border-left: 1px solid var(--line); }
.seg-btn.on { background: var(--accent-soft); color: var(--accent); font-weight: 700; }
.meter { color: var(--ink-2); min-height: 1.4em; margin: 14px 0 8px; }
.gate { font-size: 14px; background: var(--accent-soft); color: var(--ink); border-radius: 10px; padding: 8px 10px; margin: 8px 0 0; }
.gate.warn { background: var(--warn-soft); }
.history { margin-top: 16px; border-top: 1px solid var(--line); padding-top: 10px; }
.count-pill, .tab-pill { font-size: 12px; background: var(--accent); color: var(--accent-ink); border-radius: 999px; padding: 0 7px; margin-left: 4px; }
.tab-pill:empty, .count-pill:empty { display: none; }
.hist-list { list-style: none; padding: 0; margin: 8px 0 0; display: grid; gap: 6px; }
.hist { display: flex; align-items: center; gap: 6px; }
.hist-open { appearance: none; flex: 1; min-width: 0; text-align: left; border: 1px solid var(--line); background: var(--panel); border-radius: 10px; padding: 7px 10px; cursor: pointer; display: flex; flex-direction: column; }
.hist-open:hover { border-color: var(--accent); }
.hist-title { font-weight: 600; overflow-wrap: anywhere; }
.hist-sub { font-size: 12.5px; color: var(--muted); }

/* result */
.result { margin-top: 16px; }
.deck-head { display: flex; justify-content: space-between; gap: 12px; align-items: flex-start; flex-wrap: wrap; }
.kicker { margin: 0; font-size: 12.5px; text-transform: uppercase; letter-spacing: .06em; color: var(--accent); font-weight: 700; }
.deck-head h2 { font-family: var(--serif); font-size: clamp(22px, 3.5vw, 30px); margin: 2px 0 4px; line-height: 1.15; display: block; }
.deck-meta { color: var(--muted); margin: 0; }
.notes-box { background: var(--warn-soft); border-radius: 12px; padding: 8px 12px; margin: 12px 0 0; font-size: 14px; }
.notes-box p { margin: 4px 0; }
.progress { border: 1px solid var(--line); border-radius: 12px; padding: 12px 14px; margin: 12px 0; background: var(--panel-2); }
.progress-top { display: flex; justify-content: space-between; font-weight: 650; }
.clock { font-variant-numeric: tabular-nums; color: var(--muted); }
.stages { list-style: none; padding: 0; margin: 8px 0 0; display: grid; gap: 4px; font-size: 14px; }
.stage { color: var(--muted); padding-left: 22px; position: relative; }
.stage::before { content: ""; position: absolute; left: 4px; top: 6px; width: 10px; height: 10px; border-radius: 50%; border: 2px solid var(--line); }
.stage.on { color: var(--ink); font-weight: 650; }
.stage.on::before { border-color: var(--accent); background: var(--accent-soft); animation: pulse 1.2s infinite; }
.stage.done { color: var(--ink-2); }
.stage.done::before { background: var(--good); border-color: var(--good); }
@keyframes pulse { 50% { transform: scale(1.3); } }
@media (prefers-reduced-motion: reduce) { .stage.on::before { animation: none; } }
#tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--line); margin: 16px 0 14px; overflow-x: auto; }
#tabs .tab { appearance: none; border: 0; border-bottom: 3px solid transparent; background: none; padding: 9px 12px; cursor: pointer; font-weight: 650; color: var(--ink-2); white-space: nowrap; }
#tabs .tab.on { color: var(--accent); border-bottom-color: var(--accent); }

/* practice */
.qbar { display: flex; justify-content: space-between; font-size: 14px; color: var(--ink-2); font-weight: 600; }
.qbar-track { height: 6px; background: var(--panel-2); border-radius: 99px; margin: 6px 0 14px; overflow: hidden; }
.qbar-fill { height: 100%; background: var(--accent); width: 0; transition: width .25s; }
.qcard, .flash { max-width: 760px; }
.q-head { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.kind { font-size: 11.5px; font-weight: 800; text-transform: uppercase; letter-spacing: .04em; padding: 2px 8px; border-radius: 6px; background: var(--accent-soft); color: var(--accent); }
.kind.card { background: var(--good-soft); color: var(--good); }
.kind.cloze { background: var(--warn-soft); color: var(--warn); }
.topic { font-size: 13px; color: var(--muted); }
.q-text { font-size: 19px; font-weight: 600; margin: 10px 0 14px; line-height: 1.4; }
.choices { display: grid; gap: 8px; }
.choice { appearance: none; text-align: left; display: flex; gap: 10px; align-items: flex-start; border: 1.5px solid var(--line); background: var(--panel); border-radius: 12px; padding: 11px 12px; cursor: pointer; }
.choice:hover:not(:disabled) { border-color: var(--accent); background: var(--accent-soft); }
.choice:disabled { cursor: default; }
.choice.right { border-color: var(--good); background: var(--good-soft); }
.choice.wrong { border-color: var(--bad); background: var(--bad-soft); }
.letter { flex: none; width: 24px; height: 24px; display: grid; place-items: center; border-radius: 6px; background: var(--panel-2); font-weight: 700; font-size: 13px; }
.typed { display: flex; gap: 8px; flex-wrap: wrap; }
.typed input { flex: 1 1 220px; }
.feedback { border-radius: 12px; padding: 12px 14px; margin-top: 14px; border: 1px solid var(--line); background: var(--panel-2); }
.feedback.right { border-color: var(--good); background: var(--good-soft); }
.feedback.wrong { border-color: var(--bad); background: var(--bad-soft); }
.feedback.close { border-color: var(--warn); background: var(--warn-soft); }
.fb-title { margin: 0 0 4px; font-weight: 800; }
.feedback.right .fb-title { color: var(--good); }
.feedback.wrong .fb-title { color: var(--bad); }
.feedback.close .fb-title { color: var(--warn); }
.fb-answer { margin: 4px 0; }
.fb-row { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; margin: 6px 0; }
.why { color: var(--ink-2); margin: 6px 0; }
.source { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; font-size: 13.5px; margin: 8px 0 4px; }
.src-btn { appearance: none; border: 1px solid var(--accent); color: var(--accent); background: var(--panel); border-radius: 999px; padding: 2px 10px; cursor: pointer; font-weight: 650; font-size: 13px; }
.badge { font-size: 12px; border-radius: 999px; padding: 1px 8px; background: var(--panel-2); color: var(--muted); }
.badge.exact { background: var(--good-soft); color: var(--good); }
.badge.close { background: var(--warn-soft); color: var(--warn); }
.badge.missing, .badge.no_quote { background: var(--bad-soft); color: var(--bad); }
.quote { color: var(--ink-2); font-style: italic; flex-basis: 100%; }
.next { margin-top: 10px; }
.score-big { font-family: var(--serif); font-size: 56px; font-weight: 700; margin: 0; color: var(--accent); }
.topic-bars { list-style: none; padding: 0; margin: 14px 0; display: grid; gap: 6px; }
.topic-bars li { display: grid; grid-template-columns: minmax(90px, 200px) 1fr auto; gap: 8px; align-items: center; font-size: 14px; }
.tb-name { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.tb-bar { height: 8px; background: var(--panel-2); border-radius: 99px; overflow: hidden; }
.tb-fill { display: block; height: 100%; background: var(--accent); }
.tb-n { color: var(--muted); font-variant-numeric: tabular-nums; }
.end-actions { display: flex; gap: 8px; flex-wrap: wrap; }

/* review */
.card-face { border: 1px solid var(--line); border-radius: 16px; padding: 18px; background: var(--panel); min-height: 180px; box-shadow: var(--shadow); }
.card-face .front { font-size: 20px; font-weight: 600; white-space: pre-line; margin: 12px 0; }
.card-face .back { font-size: 18px; border-top: 1px dashed var(--line); padding-top: 12px; margin: 12px 0 6px; color: var(--accent); font-weight: 650; }
.rate-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; margin-top: 12px; }
.rate-row .wide { grid-column: 1 / -1; }
.rate { appearance: none; border: 1px solid var(--line); background: var(--panel); border-radius: 10px; padding: 8px 4px; cursor: pointer; display: flex; flex-direction: column; align-items: center; font-size: 14px; }
.rate span { font-size: 12px; color: var(--muted); }
.rate.r0 strong { color: var(--bad); } .rate.r1 strong { color: var(--warn); } .rate.r2 strong { color: var(--good); } .rate.r3 strong { color: var(--accent); }
.rate:hover { border-color: var(--accent); }
.flash-done { font-size: 18px; font-weight: 650; }

/* key */
.key-filter { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 10px; }
.key-list { padding-left: 22px; margin: 0; display: grid; gap: 12px; }
.key-item { border-bottom: 1px solid var(--line); padding-bottom: 12px; }
.key-item .q-text { font-size: 16.5px; margin: 6px 0; }
.key-choices { margin: 4px 0; padding-left: 20px; list-style: upper-alpha; }
.key-choices li.right { color: var(--good); font-weight: 700; }
.coverage h3 { font-size: 16px; margin: 18px 0 6px; }
.cov-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 4px; font-size: 14px; }
.cov-list li { display: flex; justify-content: space-between; gap: 8px; border-bottom: 1px dotted var(--line); }
.cov-list li.none { color: var(--bad); }
.cov-n { color: var(--muted); white-space: nowrap; }

/* export */
.export-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 10px; }
.export { appearance: none; text-align: left; border: 1px solid var(--line); background: var(--panel); border-radius: 12px; padding: 12px; cursor: pointer; display: flex; flex-direction: column; gap: 4px; }
.export span { font-size: 13.5px; color: var(--muted); }
.export:hover { border-color: var(--accent); }

/* source viewer */
.viewer { position: fixed; z-index: 40; right: 0; top: 0; bottom: 0; width: min(520px, 100%); background: var(--panel); border-left: 1px solid var(--line); box-shadow: -10px 0 30px rgba(0,0,0,.15); padding: 16px; overflow: auto; }
.viewer-head { display: flex; justify-content: space-between; gap: 10px; }
.viewer h3 { margin: 2px 0; font-size: 17px; overflow-wrap: anywhere; }
.match-note { border-radius: 10px; padding: 6px 10px; background: var(--panel-2); }
.match-note.exact { background: var(--good-soft); }
.match-note.close { background: var(--warn-soft); }
.match-note.missing, .match-note.no_quote { background: var(--bad-soft); }
.viewer-body { list-style: none; padding: 0; margin: 10px 0; display: grid; gap: 4px; }
.viewer-body li { padding: 6px 8px; border-radius: 8px; overflow-wrap: anywhere; }
.viewer-body li.cited { background: var(--accent-soft); }
.viewer-body li.ctx { color: var(--muted); }
mark { background: var(--mark); color: inherit; border-radius: 3px; padding: 0 2px; }
.scrim { position: fixed; inset: 0; background: rgba(10,10,30,.35); z-index: 35; }

/* how + footer */
.how { margin-top: 28px; }
.how h2 { font-size: 20px; }
.steps { padding-left: 20px; display: grid; gap: 8px; color: var(--ink-2); max-width: 860px; }
.foot { border-top: 1px solid var(--line); padding: 18px 16px 30px; text-align: center; color: var(--muted); font-size: 14px; }
.foot p { margin: 4px 0; }

/* toasts */
.toasts { position: fixed; bottom: 16px; left: 50%; transform: translateX(-50%); z-index: 60; display: grid; gap: 8px; width: min(520px, calc(100% - 32px)); }
.toast { background: var(--ink); color: var(--bg); border-radius: 10px; padding: 10px 14px; font-size: 14px; box-shadow: var(--shadow); transition: opacity .4s; }
.toast.err { background: var(--bad); color: #fff; }
.toast a { color: inherit; font-weight: 700; margin-left: 8px; }
.toast.gone { opacity: 0; }

/* docs pages */
.docpage { max-width: 880px; margin: 0 auto; padding: 24px 16px 40px; }
.docpage h1 { font-family: var(--serif); font-size: clamp(26px, 4vw, 34px); line-height: 1.15; margin: 8px 0 12px; }
.docpage h2 { font-size: 19px; margin: 28px 0 8px; }
.docpage h3 { font-size: 16px; margin: 18px 0 6px; }
.docpage code { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: .88em; background: var(--panel-2); padding: 1px 5px; border-radius: 5px; }
.docpage pre { background: var(--panel-2); border: 1px solid var(--line); border-radius: 10px; padding: 12px 14px; overflow: auto; font: 13px/1.5 ui-monospace, SFMono-Regular, Menlo, monospace; margin: 0; }
.docpage pre code { background: none; padding: 0; }
.docpage table { border-collapse: collapse; width: 100%; font-size: 14px; margin: 8px 0; display: block; overflow-x: auto; }
.docpage th, .docpage td { border-bottom: 1px solid var(--line); text-align: left; padding: 6px 8px; vertical-align: top; }
.statebox { background: var(--panel); border: 1px solid var(--line); border-radius: 12px; padding: 12px 14px; }
.statebox p { margin: 4px 0 0; }
.tokenbox { background: var(--panel-2); border: 1px solid var(--line); border-radius: 10px; padding: 10px 12px; font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 13px; overflow-wrap: anywhere; }
.tokenrow { display: flex; gap: 8px; flex-wrap: wrap; margin: 10px 0; }
.mono { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; }
.codegroup { margin: 10px 0 16px; }
.codegroup .tabs { display: flex; gap: 4px; flex-wrap: wrap; }
.codegroup .tab { appearance: none; border: 1px solid var(--line); border-bottom: 0; background: var(--panel); color: var(--ink-2); padding: 5px 10px; border-radius: 8px 8px 0 0; cursor: pointer; font-size: 12.5px; }
.codegroup .tab.active, .codegroup .tab[aria-selected="true"] { background: var(--panel-2); color: var(--ink); font-weight: 700; }
.codegroup pre { border-top-left-radius: 0; }

@media (max-width: 560px) {
  .hide-sm { display: none; }
  .intro { padding-top: 18px; }
  .lede { font-size: 16px; }
  .counts { grid-template-columns: 1fr 1fr; gap: 6px; }
  .q-text { font-size: 17.5px; }
  .rate-row { grid-template-columns: repeat(2, 1fr); }
  .topic-bars li { grid-template-columns: 90px 1fr auto; }
  .top-in { padding: 8px 12px; }
}