:root {
  color-scheme: dark;
  --bg: #0b0d10;
  --panel: #11151a;
  --panel-2: #161b22;
  --text: #f4f6f8;
  --muted: #929aa5;
  --line: #2a313a;
  --accent: #d7ff55;
  --danger: #ff7c7c;
}
* { box-sizing: border-box; }
body { margin: 0; font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; background: var(--bg); color: var(--text); }
button, input, select, textarea { font: inherit; }
button { cursor: pointer; }
.shell { width: min(1180px, calc(100% - 28px)); margin: 0 auto; padding: 34px 0 70px; }
.hero { display:flex; justify-content:space-between; align-items:flex-start; gap:30px; margin-bottom:28px; }
.eyebrow { font-size:12px; font-weight:800; letter-spacing:.15em; color:var(--accent); }
h1 { font-size:clamp(38px, 6vw, 72px); line-height:.95; margin:10px 0 14px; letter-spacing:-.055em; }
h2 { margin:0 0 12px; font-size:18px; }
p { color:var(--muted); }
.status { border:1px solid var(--line); padding:9px 12px; border-radius:999px; white-space:nowrap; color:#c8d0d8; }
.status span { display:inline-block; width:8px; height:8px; border-radius:50%; background:var(--accent); margin-right:7px; }
.tabs { display:flex; gap:8px; border-bottom:1px solid var(--line); margin-bottom:20px; }
.tab { background:transparent; color:var(--muted); border:0; padding:12px 14px; border-bottom:2px solid transparent; }
.tab.active { color:var(--text); border-bottom-color:var(--accent); }
.panel { display:none; }
.panel.active { display:block; }
.editor-grid { display:grid; grid-template-columns:minmax(0, 1.7fr) minmax(260px, .7fr); gap:16px; }
.card { background:var(--panel); border:1px solid var(--line); border-radius:16px; padding:18px; }
.editor-card label { display:block; font-size:13px; font-weight:700; margin-bottom:10px; color:#cbd2da; }
textarea { width:100%; min-height:300px; resize:vertical; background:#090b0e; color:#edf2f6; border:1px solid var(--line); border-radius:12px; padding:16px; line-height:1.8; outline:none; }
textarea:focus, input:focus, select:focus { border-color:#66717f; }
.button-row { display:flex; gap:10px; margin-top:12px; }
.primary, .secondary { border-radius:10px; padding:10px 15px; font-weight:750; border:1px solid transparent; }
.primary { background:var(--accent); color:#0a0b0c; }
.secondary { background:#1a2027; color:#e7ebef; border-color:var(--line); }
.small { padding:7px 10px; font-size:12px; }
.controls-card label { display:block; color:#cbd2da; margin:16px 0 8px; font-size:13px; }
.controls-card output { float:right; color:var(--accent); font-weight:800; }
input[type="range"] { width:100%; accent-color:var(--accent); }
.hint { font-size:12px; line-height:1.5; margin-top:16px; }
.results { margin-top:16px; display:grid; gap:16px; }
.metrics { display:grid; grid-template-columns:repeat(6, minmax(0, 1fr)); gap:10px; }
.metric { padding:15px; background:var(--panel); border:1px solid var(--line); border-radius:14px; }
.metric .value { display:block; font-size:26px; font-weight:850; letter-spacing:-.04em; }
.metric .label { display:block; color:var(--muted); font-size:11px; margin-top:5px; text-transform:uppercase; letter-spacing:.08em; }
.section-head { display:flex; align-items:flex-start; justify-content:space-between; gap:18px; }
.section-head p { margin:4px 0 0; font-size:12px; }
.rhyme-map { margin-top:18px; display:grid; gap:9px; }
.rhyme-line { display:grid; grid-template-columns:38px 1fr 58px; align-items:baseline; gap:10px; padding:9px 10px; border-radius:10px; background:#0d1116; }
.line-no, .line-coverage { color:#697380; font-size:11px; }
.line-coverage { text-align:right; }
.line-text { font-size:17px; line-height:1.8; }
.rhyme-seg { border-radius:5px; padding:1px 2px; transition:opacity .15s, filter .15s; background:hsla(var(--h), 80%, 55%, .22); border-bottom:2px solid hsl(var(--h), 75%, 58%); }
.rhyme-seg.multi { box-shadow: inset 0 -4px 0 hsla(calc(var(--h) + 80), 80%, 60%, .3); }
.rhyme-map.family-filter .rhyme-seg:not(.selected-family) { opacity:.18; filter:saturate(.25); }
.two-col { display:grid; grid-template-columns:1.4fr .8fr; gap:16px; }
.families { display:grid; grid-template-columns:repeat(2, minmax(0, 1fr)); gap:8px; max-height:520px; overflow:auto; }
.family { border:1px solid var(--line); background:#0d1116; color:inherit; text-align:left; padding:11px; border-radius:10px; }
.family:hover { border-color:#596575; }
.family .top { display:flex; justify-content:space-between; gap:10px; align-items:center; }
.family-id { font-weight:850; }
.family-dot { width:9px; height:9px; border-radius:50%; display:inline-block; margin-right:7px; background:hsl(var(--h), 75%, 58%); }
.family-words { margin-top:6px; color:#aeb6c0; font-size:12px; line-height:1.45; }
.coverage-bar { height:10px; background:#090b0e; border-radius:999px; overflow:hidden; margin:10px 0 12px; }
.coverage-bar > div { height:100%; background:var(--accent); }
.unknown { color:#ffbd82; font-size:13px; line-height:1.55; word-break:break-word; }
.schemes { display:flex; gap:8px; flex-wrap:wrap; }
.scheme { padding:8px 10px; background:#0d1116; border:1px solid var(--line); border-radius:8px; font-weight:800; letter-spacing:.12em; }
.subheading { margin-top:24px; }
.inline-form { display:grid; grid-template-columns:minmax(160px, 1fr) auto auto; gap:10px; }
.inline-form input, .inline-form select { background:#090b0e; color:var(--text); border:1px solid var(--line); border-radius:10px; padding:11px 12px; }
.table-wrap { overflow:auto; margin-top:18px; }
table { width:100%; border-collapse:collapse; min-width:720px; }
th, td { padding:10px 9px; text-align:left; border-bottom:1px solid var(--line); font-size:13px; }
th { color:#838d99; font-size:11px; text-transform:uppercase; letter-spacing:.07em; }
.score { font-variant-numeric:tabular-nums; font-weight:750; }
.error { color:#ffd0d0; background:#3a1717; border:1px solid #743333; padding:12px 14px; border-radius:10px; margin-top:14px; }
.loading { color:#c5cdd6; margin:15px 0; }
.hidden { display:none !important; }
@media (max-width:900px) {
  .editor-grid, .two-col { grid-template-columns:1fr; }
  .metrics { grid-template-columns:repeat(3, 1fr); }
  .families { grid-template-columns:1fr; }
}
@media (max-width:620px) {
  .hero { display:block; }
  .status { display:inline-block; margin-top:8px; }
  .metrics { grid-template-columns:repeat(2, 1fr); }
  .inline-form { grid-template-columns:1fr; }
  .rhyme-line { grid-template-columns:26px 1fr; }
  .line-coverage { display:none; }
}

/* v0.8 */
.ai-box { margin-bottom:18px; }
.ai-box summary { cursor:pointer; font-weight:800; color:#e9eef3; }
.ai-grid { display:grid; grid-template-columns:repeat(4,minmax(0,1fr)); gap:10px; margin-top:14px; }
.ai-grid label, .field { display:grid; gap:7px; color:#cbd2da; font-size:13px; }
.ai-grid input, .ai-grid select, .field input, .field select { background:#090b0e; color:var(--text); border:1px solid var(--line); border-radius:10px; padding:11px 12px; width:100%; }
.dimmed { opacity:.45; }
.source-summary { color:#8d98a4; font-size:12px; margin:8px 0 12px; }
.inferred { color:#d8e6b0; font-size:13px; line-height:1.7; margin:8px 0; }
.unknown.good { color:#9fd89f; }
.source-pill { display:inline-block; padding:1px 6px; border:1px solid #405044; border-radius:999px; font-size:10px; text-transform:uppercase; letter-spacing:.05em; color:#bfe49f; }
.result-note { margin-top:14px; color:#aab4bf; font-size:12px; }
.writer-grid, .challenge-grid { display:grid; grid-template-columns:minmax(0,1fr) minmax(0,1fr); gap:16px; }
.form-grid { display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:12px; margin:14px 0; }
.small-area { min-height:120px; }
.output-card { min-height:520px; }
.lyrics-output { white-space:pre-wrap; font-family:inherit; font-size:16px; line-height:1.75; background:#090b0e; border:1px solid var(--line); border-radius:12px; padding:16px; min-height:340px; margin-top:14px; }
.muted-output { color:#74808c; }
.tag { color:#b7c38e; background:#1d2415; border:1px solid #374326; border-radius:999px; padding:5px 9px; font-size:11px; }
.mini-metrics, .challenge-scores { display:grid; grid-template-columns:repeat(4,minmax(0,1fr)); gap:8px; margin-top:12px; }
.challenge-scores { grid-template-columns:repeat(3,minmax(0,1fr)); }
.challenge-line { margin:18px 0; padding:18px; background:#090b0e; border-left:3px solid var(--accent); font-size:22px; line-height:1.55; border-radius:8px; color:#f3f6f8; }
.check { display:flex; align-items:center; gap:8px; color:#aeb7c1; font-size:13px; margin:12px 0; }
.feedback-box { margin-top:12px; padding:14px; background:#0d1116; border:1px solid var(--line); border-radius:12px; }
.feedback-box h3 { margin:0 0 8px; font-size:14px; }
.feedback-box p, .feedback-box li { color:#abb5bf; font-size:13px; line-height:1.55; }
.feedback-line { color:#d8e0e7; line-height:1.6; font-size:14px; }
.score-row { display:flex; gap:14px; flex-wrap:wrap; margin:8px 0; }
.score-row span { background:#151b22; border:1px solid var(--line); border-radius:8px; padding:8px 10px; font-size:12px; }
.warning { color:#ffbd82 !important; }
@media (max-width:900px) {
  .ai-grid { grid-template-columns:repeat(2,minmax(0,1fr)); }
  .writer-grid, .challenge-grid { grid-template-columns:1fr; }
}
@media (max-width:620px) {
  .ai-grid, .form-grid { grid-template-columns:1fr; }
  .mini-metrics, .challenge-scores { grid-template-columns:repeat(2,minmax(0,1fr)); }
}