/* Slow Slow Quick - ivory programme paper, burgundy velvet and gilt by day; a dim ballroom by night. */
:root {
  --bg: #f6efe4; --panel: #fffaf2; --panel2: #f1e6d6; --ink: #2b1c24; --muted: #6e5a62; --line: #e1d2bf;
  --accent: #8a1d3b; --accent-ink: #ffffff; --gold: #9a6a12; --gold-soft: #f3e2bd;
  --wood-a: #d8ad78; --wood-b: #c9965c; --wood-line: #b07d45; --area: rgba(255, 250, 242, .55);
  --t-place: #5b4bc4; --t-move: #b1352f; --t-side: #1f7a6d; --t-turn: #9a5800; --t-pose: #8a1d3b;
  --fit-in: #1e6b3a; --fit-in-bg: #dcefe1; --fit-near: #1d6670; --fit-near-bg: #d8edef; --fit-stretch: #8a5200; --fit-stretch-bg: #f7e6c9; --fit-out: #6e5a62; --fit-out-bg: #ece3da;
  --warn: #9b2c1c; --warn-bg: #fbe3dc; --ok: #1e6b3a; --ok-bg: #dcefe1;
  --shadow: 0 1px 2px rgba(60, 30, 40, .08), 0 6px 18px rgba(60, 30, 40, .06);
  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, "Book Antiqua", Georgia, serif;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
}
:root[data-theme="dark"] {
  --bg: #151017; --panel: #1f1822; --panel2: #2a2030; --ink: #f3e9de; --muted: #b9a7ad; --line: #3b2f40;
  --accent: #e57d97; --accent-ink: #1a0f14; --gold: #e2b458; --gold-soft: #3a2d18;
  --wood-a: #5a3f28; --wood-b: #4d3522; --wood-line: #3a2717; --area: rgba(21, 16, 23, .45);
  --t-place: #a99bff; --t-move: #ff8a7f; --t-side: #5fd1bd; --t-turn: #ffb547; --t-pose: #f08ba5;
  --fit-in: #8fe0a6; --fit-in-bg: #1d3626; --fit-near: #8fd8e0; --fit-near-bg: #19333a; --fit-stretch: #ffc76e; --fit-stretch-bg: #3d2c12; --fit-out: #b9a7ad; --fit-out-bg: #2c2430;
  --warn: #ffab9b; --warn-bg: #3d1d18; --ok: #8fe0a6; --ok-bg: #1d3626;
  --shadow: 0 1px 2px rgba(0, 0, 0, .4), 0 6px 18px rgba(0, 0, 0, .3);
}
* { box-sizing: border-box; }
html, body { margin: 0; }
body { background: var(--bg); color: var(--ink); font: 15px/1.55 var(--sans); }
a { color: var(--accent); }
.hidden { display: none !important; }
.small { font-size: 13px; }
.muted { color: var(--muted); }
.mono { font-family: var(--mono); font-size: 12.5px; }
.none { color: var(--muted); font-style: italic; }
h1, h2, h3 { font-family: var(--serif); line-height: 1.2; }
h3 { font-size: 17px; margin: 18px 0 8px; }

/* --- Header --- */
.bar { position: sticky; top: 0; z-index: 20; display: flex; align-items: center; gap: 10px; padding: 8px 16px; background: var(--panel); border-bottom: 1px solid var(--line); }
.back { text-decoration: none; color: var(--muted); font-size: 14px; white-space: nowrap; }
.brand { display: flex; align-items: center; gap: 8px; min-width: 0; flex: 1; }
.brand strong { font-family: var(--serif); font-size: 18px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.logo { width: 28px; height: 28px; flex: none; }
.lg-tile { fill: var(--accent); } .lg-l { fill: var(--gold-soft); } .lg-r { fill: var(--gold); }
:root[data-theme="dark"] .lg-l { fill: #1a0f14; } :root[data-theme="dark"] .lg-r { fill: #5b2433; }
.session { display: flex; align-items: center; gap: 6px; flex-wrap: nowrap; }
.pill { display: inline-flex; align-items: center; justify-content: center; gap: 4px; border: 1px solid var(--line); background: var(--panel); color: var(--ink); border-radius: 999px; padding: 6px 13px; font: 600 13px/1.2 var(--sans); cursor: pointer; text-decoration: none; white-space: nowrap; }
.pill:hover { border-color: var(--accent); }
.pill.solid { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.pill.solid:hover { filter: brightness(1.08); }
.pill.ghost { background: transparent; cursor: default; }
.pill.tiny { padding: 3px 10px; font-size: 12px; }
.pill.big { padding: 10px 20px; font-size: 15px; }
.pill:disabled { opacity: .5; cursor: not-allowed; }
:focus-visible { outline: 2px solid var(--gold); outline-offset: 2px; }

/* --- Hero --- */
main { max-width: 1060px; margin: 0 auto; padding: 0 16px 40px; }
.hero { padding: 26px 0 8px; }
.kicker { display: inline-block; margin: 0 0 12px; padding: 6px 12px; border-left: 3px solid var(--gold); background: var(--gold-soft); font-size: 13px; border-radius: 0 8px 8px 0; }
h1 { font-size: 40px; margin: 6px 0 10px; letter-spacing: .3px; }
.h1b { display: block; font-size: 20px; font-style: italic; color: var(--accent); margin-top: 6px; font-weight: 500; }
.lede { max-width: 720px; margin: 0 0 14px; }
.samples { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.chip { border: 1px solid var(--line); background: var(--panel); color: var(--ink); border-radius: 999px; padding: 5px 12px; font: 13px var(--sans); cursor: pointer; }
.chip:hover { border-color: var(--accent); }
.chip.on { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }

/* --- Panels and forms --- */
.panel { background: var(--panel); border: 1px solid var(--line); border-radius: 14px; padding: 16px 18px; margin: 16px 0; box-shadow: var(--shadow); }
.ph { display: flex; align-items: center; gap: 10px; font-size: 21px; margin: 0 0 12px; }
.step-no { display: inline-grid; place-items: center; width: 28px; height: 28px; border-radius: 50%; background: var(--accent); color: var(--accent-ink); font: 700 14px var(--sans); flex: none; }
.two { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.grid3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px 16px; }
.span2 { grid-column: span 2; } .span3 { grid-column: span 3; }
.lbl { display: block; font-size: 12.5px; font-weight: 600; color: var(--muted); margin: 8px 0 4px; }
input, select, textarea { width: 100%; font: 15px var(--sans); color: var(--ink); background: var(--bg); border: 1px solid var(--line); border-radius: 9px; padding: 8px 10px; }
textarea { resize: vertical; }
input:focus, select:focus, textarea:focus { outline: 2px solid var(--gold); outline-offset: 0; }
.note { background: var(--gold-soft); border-radius: 8px; padding: 6px 10px; }
.tapcol { display: flex; flex-direction: column; gap: 6px; }
.tap { width: 100%; min-height: 96px; border-radius: 16px; border: 2px dashed var(--accent); background: var(--panel2); color: var(--accent); font: 700 22px var(--serif); cursor: pointer; touch-action: manipulation; user-select: none; }
.tap.hit { animation: thump .18s ease-out; }
@keyframes thump { 0% { transform: scale(.97); background: var(--gold-soft); } 100% { transform: scale(1); } }
.trio { display: grid; grid-template-columns: 1fr 1.2fr 1fr; gap: 10px; }
#playBtn { align-self: flex-start; margin-top: 6px; }
.pickrow { display: flex; align-items: center; gap: 10px; margin-top: 10px; }
.pickrow .lbl { margin: 0; } .pickrow select { max-width: 320px; }

/* --- Tempo ruler --- */
.ruler { display: flex; flex-direction: column; gap: 3px; }
.rl-row { display: grid; grid-template-columns: 150px 1fr 150px; align-items: center; gap: 10px; width: 100%; padding: 5px 8px; border: 1px solid transparent; border-radius: 9px; background: none; color: var(--ink); font: 14px var(--sans); text-align: left; cursor: pointer; }
button.rl-row:hover { background: var(--panel2); }
.rl-row.on { border-color: var(--accent); background: var(--panel2); }
.rl-head { cursor: default; padding-top: 0; padding-bottom: 0; }
.rl-meter { color: var(--muted); font-size: 12px; }
.rl-track-wrap { position: relative; min-width: 0; }
.rl-axis { position: relative; height: 16px; }
.rl-tick { position: absolute; transform: translateX(-50%); font: 11px var(--mono); color: var(--muted); }
.rl-track { position: relative; height: 14px; border-radius: 7px; background: var(--panel2); border: 1px solid var(--line); overflow: hidden; }
.rl-band { position: absolute; top: 0; bottom: 0; background: var(--gold-soft); }
.rl-range { position: absolute; top: 2px; bottom: 2px; border-radius: 5px; background: var(--gold); }
.rl-needle { position: absolute; top: -1px; bottom: -1px; width: 3px; margin-left: -1.5px; background: var(--accent); border-radius: 2px; }
.rl-ghost { position: absolute; top: 0; bottom: 0; width: 0; margin-left: -1px; border-left: 2px dotted var(--accent); opacity: .55; }
.fit-tag { justify-self: start; font: 600 12px var(--sans); padding: 2px 9px; border-radius: 999px; white-space: nowrap; }
.fit-tag.fit-in { color: var(--fit-in); background: var(--fit-in-bg); }
.fit-tag.fit-near { color: var(--fit-near); background: var(--fit-near-bg); }
.fit-tag.fit-stretch { color: var(--fit-stretch); background: var(--fit-stretch-bg); }
.fit-tag.fit-out { color: var(--fit-out); background: var(--fit-out-bg); }

/* --- Verdict badges --- */
.verdict-row { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; margin-bottom: 4px; }
.badge { display: inline-block; padding: 4px 12px; border-radius: 999px; font: 700 13px var(--sans); background: var(--panel2); color: var(--ink); white-space: nowrap; }
.badge.v-fits { background: var(--ok-bg); color: var(--ok); }
.badge.v-simplify { background: var(--fit-stretch-bg); color: var(--fit-stretch); }
.badge.v-switch { background: var(--warn-bg); color: var(--warn); }

/* --- The floor --- */
.floor-wrap { display: grid; grid-template-columns: 1.6fr 1fr; gap: 16px; align-items: start; margin-top: 8px; }
.floor-host svg, .feet-host svg { display: block; width: 100%; height: auto; }
.pq-a { fill: var(--wood-a); } .pq-b { fill: var(--wood-b); } .pq-line { stroke: var(--wood-line); stroke-width: .8; fill: none; }
.pq-floor { stroke: var(--wood-line); stroke-width: 2; }
.fl-area { fill: var(--area); stroke: var(--gold); stroke-width: 1.5; stroke-dasharray: 5 4; }
.fl-cap { font: 11px var(--sans); fill: var(--ink); opacity: .8; }
.fl-empty { font: 14px var(--sans); fill: var(--ink); }
.lod-head { fill: var(--ink); opacity: .7; }
.seg { fill: none; stroke-width: 6; stroke-linecap: round; stroke-linejoin: round; opacity: .85; }
.seg.sel { stroke-width: 9; opacity: 1; }
.seg.tr-in_place, .stop-dot.tr-in_place { stroke: var(--t-place); }
.seg.tr-forward, .seg.tr-back, .stop-dot.tr-forward, .stop-dot.tr-back { stroke: var(--t-move); }
.seg.tr-side, .stop-dot.tr-side { stroke: var(--t-side); }
.seg.tr-turn, .seg.tr-spin, .stop-dot.tr-turn, .stop-dot.tr-spin { stroke: var(--t-turn); }
.seg.tr-pose, .stop-dot.tr-pose { stroke: var(--t-pose); }
.seg.tr-none, .stop-dot.tr-none { stroke: var(--muted); }
.stop { cursor: pointer; }
.stop-dot { fill: var(--panel); stroke-width: 3; }
.stop.sel .stop-dot { fill: var(--gold-soft); stroke-width: 4; }
.stop-no { font: 700 12px var(--sans); fill: var(--ink); pointer-events: none; }
.ft-board { fill: var(--panel2); stroke: var(--line); }
.ft-L .ft-sole, .ft-L .ft-heel { fill: var(--accent); }
.ft-R .ft-sole, .ft-R .ft-heel { fill: var(--gold); }
.ft-no { font: 700 10px var(--sans); fill: var(--accent-ink); }
.ft-no.ft-no-s { font-size: 6.5px; letter-spacing: -.2px; }
:root[data-theme="dark"] .ft-R .ft-no { fill: #1a0f14; }
.ft-dir { stroke: var(--muted); stroke-width: 2; stroke-dasharray: 4 4; fill: none; }
.ft-orbit { fill: none; stroke: var(--muted); stroke-width: 1.5; stroke-dasharray: 3 5; }
.ft-cap { font: 11px var(--sans); fill: var(--muted); }
.lever { display: flex; align-items: center; justify-content: space-between; gap: 8px; margin-top: 8px; }
.ribbon { display: flex; gap: 4px; margin: 14px 0 8px; }
.rb-cell { flex: 1; min-width: 0; text-align: center; padding: 6px 2px; border-radius: 8px; background: var(--panel2); border: 1px solid var(--line); }
.rb-cell b { display: block; font: 700 18px var(--serif); }
.rb-cell.down b { color: var(--accent); }
.rb-step { display: block; font: 11px var(--mono); color: var(--muted); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; min-height: 14px; }
.rb-cell.now { background: var(--accent); border-color: var(--accent); }
.rb-cell.now b, .rb-cell.now .rb-step { color: var(--accent-ink); }
.block-card { border: 1px solid var(--line); border-radius: 10px; padding: 10px 12px; background: var(--bg); }
.bc-head, .bhead { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; }
.bc-no, .bno { font: 700 13px var(--mono); color: var(--accent); }
.bc-cue, .bcue { margin: 6px 0; }
.trav-tag { font: 600 11.5px var(--sans); padding: 2px 9px; border-radius: 999px; color: #fff; background: var(--muted); white-space: nowrap; }
.trav-tag.tr-in_place { background: var(--t-place); } .trav-tag.tr-forward, .trav-tag.tr-back { background: var(--t-move); } .trav-tag.tr-side { background: var(--t-side); }
.trav-tag.tr-turn, .trav-tag.tr-spin { background: var(--t-turn); } .trav-tag.tr-pose { background: var(--t-pose); }
:root[data-theme="dark"] .trav-tag { color: #160f18; }
.legend { list-style: none; display: flex; flex-wrap: wrap; gap: 6px 16px; padding: 0; margin: 10px 0 4px; font-size: 13px; }
.legend li { display: flex; align-items: center; gap: 6px; }
.key { width: 18px; height: 6px; border-radius: 3px; display: inline-block; }
.key.tr-in_place { background: var(--t-place); } .key.tr-forward { background: var(--t-move); } .key.tr-side { background: var(--t-side); } .key.tr-turn { background: var(--t-turn); } .key.tr-pose { background: var(--t-pose); }

/* --- Run, progress, result --- */
.runrow { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; margin-top: 8px; }
.gate { background: var(--gold-soft); border-radius: 9px; padding: 8px 12px; margin: 10px 0 0; }
.gate a { margin-left: 4px; }
.steps { list-style: none; padding: 0; margin: 6px 0; }
.step { padding: 3px 0; color: var(--muted); }
.step.done { color: var(--ok); } .step.active { color: var(--ink); font-weight: 600; }
.step-ic { display: inline-block; width: 16px; font-family: var(--mono); }
.raw { white-space: pre-wrap; word-break: break-word; font: 12px var(--mono); background: var(--bg); padding: 10px; border-radius: 8px; max-height: 360px; overflow: auto; }
.res-head { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; }
.res-head h2 { margin: 0; font-size: 24px; overflow-wrap: anywhere; }
.feel { font: italic 17px/1.5 var(--serif); margin: 12px 0 4px; }
.blocks { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
.brow { border: 1px solid var(--line); border-left: 5px solid var(--muted); border-radius: 10px; padding: 10px 12px; background: var(--bg); }
.brow.tr-in_place { border-left-color: var(--t-place); } .brow.tr-forward, .brow.tr-back { border-left-color: var(--t-move); } .brow.tr-side { border-left-color: var(--t-side); }
.brow.tr-turn, .brow.tr-spin { border-left-color: var(--t-turn); } .brow.tr-pose { border-left-color: var(--t-pose); }
.bfig { font-family: var(--serif); font-size: 16px; }
.bwhen { margin-left: auto; color: var(--muted); }
.plain { padding-left: 20px; margin: 0; } .plain li { margin: 4px 0; }
.recon { list-style: none; padding: 0; margin: 0; }
.recon li { padding: 6px 10px; border-radius: 8px; margin: 4px 0; font-size: 13.5px; }
.recon li.warn { background: var(--warn-bg); color: var(--warn); }
.recon li.info { background: var(--panel2); }
.recon li.none { background: var(--ok-bg); color: var(--ok); font-style: normal; }
.exports, .cardrow { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }

/* --- Saved routines --- */
.saved { list-style: none; padding: 0; margin: 12px 0 0; }
.hrow { display: flex; align-items: center; gap: 12px; padding: 8px 0; border-top: 1px solid var(--line); }
.hinfo { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.hinfo b { overflow-wrap: anywhere; }
.hbtns { display: flex; gap: 6px; }
.mini { width: 30px; height: 30px; flex: none; }
.mini-bg { fill: var(--panel2); stroke: var(--line); }
.mini .ft-sole, .mini .ft-heel { transform: scale(.55); }

/* --- Footer, toasts --- */
.foot { max-width: 1060px; margin: 0 auto; padding: 10px 16px 40px; color: var(--muted); font-size: 13px; }
.toasts { position: fixed; right: 16px; bottom: 16px; display: flex; flex-direction: column; gap: 8px; z-index: 50; max-width: min(380px, calc(100vw - 32px)); }
.toast { padding: 10px 14px; border-radius: 10px; background: var(--ink); color: var(--bg); font-size: 14px; box-shadow: var(--shadow); transition: opacity .5s; }
.toast.err { background: var(--warn); color: #fff; }
:root[data-theme="dark"] .toast.err { color: #1a0f14; }
.toast a { color: inherit; font-weight: 700; }
.toast.gone { opacity: 0; }

/* --- Phones --- */
@media (max-width: 760px) {
  .two, .floor-wrap { grid-template-columns: 1fr; }
  .grid3 { grid-template-columns: 1fr 1fr; }
  .span2, .span3 { grid-column: span 2; }
  .rl-row { grid-template-columns: 96px 1fr; gap: 6px 8px; }
  .rl-row .rl-fit { grid-column: 2; }
  .rl-head .rl-fit { display: none; }
  .rl-name b { font-size: 13px; }
  .feet-host { max-width: 300px; margin: 0 auto; width: 100%; }
}
@media (max-width: 480px) {
  h1 { font-size: 32px; } .h1b { font-size: 17px; }
  .back-t { display: none; }
  .brand strong { font-size: 16px; }
  .session { gap: 4px; } .pill { padding: 6px 10px; }
  .trio { grid-template-columns: 1fr 1fr; } .trio > div:nth-child(2) { grid-column: span 2; order: 3; }
  .panel { padding: 14px 12px; }
  .rb-cell b { font-size: 15px; }
}

@media print {
  body { background: #fff; color: #000; }
  .bar, .hero, .musicbox, .dancebox, .whobox, .askbox, .histbox, .aboutbox, .foot, .progress, .exports, .lever, .toasts, #how, #rawResult { display: none !important; }
  .panel { box-shadow: none; border-color: #999; break-inside: avoid; }
  .result .blocks li { break-inside: avoid; }
}