/* Thock or Clack - an oat desk mat by day, a charcoal one by night, cream keycaps with a coral accent key.
 * Light and dark share one set of tokens. */
:root {
  --bg: #f1ece3; --panel: #fffdf8; --ink: #1d1b22; --muted: #5a5664; --line: #e0d8ca; --accent: #c23b4e; --accent-ink: #ffffff; --chip: #ebe3d4;
  --step: #2e4057; --step-ink: #ffffff; --field: #faf6ef;
  --case-plastic: #3a3f4b; --case-aluminium: #c4c8cf; --case-wood: #a8774a; --case-unknown: #7c818c;
  --well-plastic: #2a2e37; --well-aluminium: #9aa0a9; --well-wood: #7d5532; --well-unknown: #5d626c;
  --cap-skirt: #e2dccf; --cap-top: #f8f4ec; --mod-skirt: #b7b2c3; --mod-top: #d3cfdc; --acc-skirt: #b5384a; --acc-top: #df5a6c; --cap-line: rgba(0,0,0,.18); --shine: rgba(255,255,255,.75);
  --pg-a: #3b2a5e; --pg-b: #f6c851; --seg: #e6dfd2; --seg-on: #2e4057; --seg-over: #c23b4e; --zone: rgba(194,59,78,.16);
  --t-mod-bg: #cdeee9; --t-mod: #0f4d46; --t-swap-bg: #fbe6b8; --t-swap: #664400; --t-rebuild-bg: #f9d3d8; --t-rebuild: #7a1525; --t-keep-bg: #d8efd9; --t-keep: #1f5a26;
  --warn: #8f3d0c; --bad: #a3141b; --ok: #1f5a26; --info: #2d4a8f;
}
:root[data-theme="dark"] {
  --bg: #121317; --panel: #1b1d23; --ink: #ecebf0; --muted: #aba9b6; --line: #31343d; --accent: #ff8a7a; --accent-ink: #2a0b07; --chip: #262932;
  --step: #9fb8d9; --step-ink: #121317; --field: #15171c;
  --case-plastic: #4a505e; --case-aluminium: #a9aeb7; --case-wood: #93653d; --case-unknown: #6c717c;
  --well-plastic: #23262e; --well-aluminium: #7f858f; --well-wood: #64431f; --well-unknown: #4a4e57;
  --cap-skirt: #bdb7ab; --cap-top: #dcd7cd; --mod-skirt: #8e899b; --mod-top: #aaa5b6; --acc-skirt: #b5384a; --acc-top: #e46a7a; --cap-line: rgba(0,0,0,.35); --shine: rgba(255,255,255,.6);
  --pg-a: #5a4590; --pg-b: #f6c851; --seg: #2b2e37; --seg-on: #9fb8d9; --seg-over: #ff8a7a; --zone: rgba(255,138,122,.2);
  --t-mod-bg: #17423d; --t-mod: #bff0e8; --t-swap-bg: #4a3a12; --t-swap: #ffe3a3; --t-rebuild-bg: #4d1c25; --t-rebuild: #ffd0d7; --t-keep-bg: #1f3d22; --t-keep: #c4ecc8;
  --warn: #ffbe94; --bad: #ff9a9a; --ok: #b5e8bb; --info: #c3d2ff;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 16px/1.55 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; overflow-x: hidden; }
a { color: var(--accent); }
.hidden { display: none !important; }
.visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.small { font-size: .875rem; } .muted { color: var(--muted); } .mono { font-family: ui-monospace, Menlo, Consolas, monospace; }
.bar { display: flex; align-items: center; gap: 10px; padding: 10px 20px; border-bottom: 1px solid var(--line); background: var(--panel); flex-wrap: wrap; }
.back { text-decoration: none; color: var(--muted); font-size: .9rem; white-space: nowrap; }
.brand { display: flex; align-items: center; gap: 8px; font-size: 1.05rem; margin-right: auto; white-space: nowrap; }
.brand strong { font-weight: 800; letter-spacing: -.01em; }
.logo { width: 30px; height: 30px; flex: none; }
.lg-skirt { fill: var(--acc-skirt); } .lg-top { fill: var(--acc-top); } .lg-dish { fill: none; stroke: var(--shine); stroke-width: 1.6; stroke-linecap: round; }
.session { display: flex; gap: 6px; align-items: center; flex-wrap: wrap; }
.pill { font: inherit; font-size: .875rem; border: 1.5px solid var(--line); background: var(--panel); color: var(--ink); border-radius: 999px; padding: 5px 14px; cursor: pointer; text-decoration: none; display: inline-block; line-height: 1.3; }
.pill:hover:not(:disabled) { border-color: var(--accent); }
.pill.solid { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); font-weight: 700; }
.pill.solid:hover:not(:disabled) { color: var(--accent-ink); filter: brightness(1.07); }
.pill.ghost { cursor: default; background: transparent; }
.pill.tiny { padding: 3px 11px; font-size: .8rem; }
.pill.big { padding: 10px 24px; font-size: 1rem; }
.pill:disabled { opacity: .5; cursor: not-allowed; }
main { max-width: 1080px; margin: 0 auto; padding: 18px 20px 40px; }
.hero { padding: 10px 0 6px; }
.kicker { font-size: .86rem; color: var(--muted); border-left: 4px solid var(--accent); padding: 4px 0 4px 12px; margin: 6px 0 14px; max-width: 780px; }
h1 { font-size: clamp(1.9rem, 5vw, 2.9rem); line-height: 1.08; margin: 0 0 10px; letter-spacing: -.02em; overflow-wrap: anywhere; }
.h1b { display: block; font-size: clamp(1rem, 2.6vw, 1.25rem); font-weight: 500; color: var(--muted); letter-spacing: 0; margin-top: 6px; }
.lede { max-width: 780px; margin: 0 0 12px; }
.samples { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.chip { font: inherit; font-size: .85rem; border: 1.5px solid var(--line); background: var(--chip); color: var(--ink); border-radius: 8px; padding: 4px 12px; cursor: pointer; box-shadow: 0 2px 0 var(--line); }
.chip.on { border-color: var(--accent); background: var(--panel); font-weight: 700; }
.two-col { display: grid; grid-template-columns: 1.2fr 1fr; gap: 16px; margin-top: 16px; }
.panel { background: var(--panel); border: 1px solid var(--line); border-radius: 18px; padding: 16px 18px; margin-top: 16px; min-width: 0; }
.two-col .panel { margin-top: 0; }
.ph { display: flex; align-items: center; gap: 10px; font-size: 1.15rem; margin: 0 0 10px; }
.step-no { display: inline-grid; place-items: center; width: 28px; height: 28px; border-radius: 7px; background: var(--step); color: var(--step-ink); font-size: .85rem; flex: none; font-weight: 800; box-shadow: 0 2px 0 rgba(0,0,0,.25); }
.lbl { display: block; font-size: .85rem; font-weight: 600; margin: 10px 0 6px; }
textarea, input[type="text"], select { width: 100%; font: inherit; font-size: .92rem; border: 1.5px solid var(--line); border-radius: 10px; padding: 8px 10px; background: var(--field); color: var(--ink); }
textarea { resize: vertical; }
.parts { display: grid; grid-template-columns: 1fr 1fr; gap: 8px 12px; }
.part { display: flex; flex-direction: column; gap: 3px; min-width: 0; }
.part-l { font-size: .8rem; font-weight: 700; color: var(--muted); text-transform: uppercase; letter-spacing: .04em; }
.rooms { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.room { display: flex; gap: 8px; align-items: flex-start; border: 1.5px solid var(--line); border-radius: 12px; padding: 8px 10px; cursor: pointer; background: var(--field); }
.room:has(input:checked) { border-color: var(--accent); }
.room b, .room .small { display: block; line-height: 1.3; }
.room input { margin-top: 3px; accent-color: var(--accent); }
.note { background: var(--chip); border-radius: 10px; padding: 7px 10px; margin: 8px 0 0; }
.viewrow { display: flex; gap: 6px; align-items: center; flex-wrap: wrap; margin-bottom: 10px; }
.seg { display: inline-flex; cursor: pointer; }
.seg input { position: absolute; opacity: 0; width: 1px; height: 1px; }
.seg span { border: 1.5px solid var(--line); border-radius: 8px; padding: 4px 12px; font-size: .85rem; background: var(--field); }
.seg input:checked + span { background: var(--step); border-color: var(--step); color: var(--step-ink); font-weight: 700; }
.seg input:focus-visible + span { outline: 2px solid var(--accent); outline-offset: 2px; }
.seg input:disabled + span { opacity: .45; cursor: not-allowed; }
.board-box { background: linear-gradient(180deg, var(--chip), var(--bg)); border-radius: 14px; padding: 14px; overflow: hidden; }
.board-box svg { display: block; width: 100%; height: auto; max-height: 300px; }
.kb-case { fill: var(--case-unknown); } .kb-well { fill: var(--well-unknown); }
.kb-plastic .kb-case { fill: var(--case-plastic); } .kb-plastic .kb-well { fill: var(--well-plastic); }
.kb-aluminium .kb-case { fill: var(--case-aluminium); } .kb-aluminium .kb-well { fill: var(--well-aluminium); }
.kb-wood .kb-case { fill: var(--case-wood); } .kb-wood .kb-well { fill: var(--well-wood); }
.key .k-skirt { fill: var(--cap-skirt); stroke: var(--cap-line); stroke-width: .6; } .key .k-top { fill: var(--cap-top); }
.key.k-mod .k-skirt { fill: var(--mod-skirt); } .key.k-mod .k-top { fill: var(--mod-top); }
.key.k-acc .k-skirt { fill: var(--acc-skirt); } .key.k-acc .k-top { fill: var(--acc-top); }
.k-shine { fill: var(--shine); }
.cap-pbt .k-top { opacity: .96; }
.reading { display: flex; gap: 4px 14px; align-items: baseline; flex-wrap: wrap; margin: 12px 0 4px; }
.reading b { font-size: clamp(1.3rem, 4vw, 1.8rem); letter-spacing: -.01em; line-height: 1.15; }
.strip-box svg { display: block; width: 100%; height: auto; max-width: 100%; }
.pg-a { stop-color: var(--pg-a); } .pg-b { stop-color: var(--pg-b); }
.st-lab { font: 700 14px system-ui, sans-serif; fill: var(--ink); }
.st-end { font: 13px system-ui, sans-serif; fill: var(--muted); }
.st-zone { fill: var(--zone); }
.st-seg { fill: var(--seg); } .st-seg.on { fill: var(--seg-on); } .st-seg.on.over { fill: var(--seg-over); }
.st-limit { stroke: var(--accent); stroke-width: 2; stroke-dasharray: 4 3; }
.st-mark.m-now { fill: var(--panel); stroke: var(--ink); stroke-width: 2; } .st-mark.m-after { fill: var(--accent); stroke: var(--accent); stroke-width: 1; }
.st-mk { font: 700 13px system-ui, sans-serif; fill: var(--ink); } .st-mk.m-after { fill: var(--accent); }
.key-line { display: flex; flex-wrap: wrap; gap: 6px 14px; margin: 8px 0 0; }
.kl { display: inline-flex; align-items: center; gap: 6px; }
.key-line .key { display: inline-block; width: 14px; height: 12px; }
.key-line .kx-now, .key-line .kx-after { width: 0; height: 0; border-left: 7px solid transparent; border-right: 7px solid transparent; }
.key-line .kx-now { border-top: 12px solid var(--ink); }
.key-line .kx-after { border-bottom: 12px solid var(--accent); }
.kx-zone { background: var(--zone); border-radius: 3px; width: 22px !important; }
.hear { display: flex; gap: 8px; align-items: center; margin-top: 12px; flex-wrap: wrap; }
.hear input { flex: 1 1 220px; font-family: ui-monospace, Menlo, Consolas, monospace; }
.hear .pill.on { background: var(--step); color: var(--step-ink); border-color: var(--step); }
.exports, .cardrow, .runrow { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; margin-top: 12px; }
.gate { background: var(--chip); border-radius: 10px; padding: 8px 10px; }
.steps { list-style: none; padding: 0; margin: 8px 0; }
.step { padding: 3px 0; color: var(--muted); } .step.active { color: var(--ink); font-weight: 600; } .step.done { color: var(--ok); }
.step-ic { display: inline-block; width: 1.2em; font-family: ui-monospace, monospace; }
.raw { white-space: pre-wrap; overflow-wrap: anywhere; font-size: .8rem; background: var(--bg); padding: 10px; border-radius: 10px; max-height: 360px; overflow: auto; }
.result h2 { margin: 2px 0 8px; font-size: 1.4rem; overflow-wrap: anywhere; }
.result h3 { font-size: 1rem; margin: 16px 0 6px; }
.res-kick { margin: 0; color: var(--muted); text-transform: uppercase; letter-spacing: .08em; font-weight: 700; font-size: .75rem; }
.verdict-row { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.verdict-row p { margin: 0; flex: 1 1 220px; }
.badge { display: inline-block; font-size: .8rem; font-weight: 800; border-radius: 6px; padding: 3px 12px; background: var(--chip); color: var(--ink); white-space: nowrap; letter-spacing: .02em; }
.badge.v-keep { background: var(--t-keep-bg); color: var(--t-keep); } .badge.v-tune { background: var(--t-mod-bg); color: var(--t-mod); }
.badge.v-swap { background: var(--t-swap-bg); color: var(--t-swap); } .badge.v-rebuild { background: var(--t-rebuild-bg); color: var(--t-rebuild); }
.tray { list-style: none; display: flex; flex-wrap: wrap; gap: 10px; padding: 12px; margin: 0 0 10px; background: var(--chip); border-radius: 14px; }
.cap { position: relative; width: 92px; min-height: 80px; border-radius: 10px; padding: 9px 8px 8px; display: flex; flex-direction: column; justify-content: flex-end; gap: 2px;
  box-shadow: inset 0 -7px 0 rgba(0,0,0,.14), 0 3px 0 rgba(0,0,0,.18); }
.cap i { position: absolute; top: 6px; left: 8px; font-style: normal; font-size: .72rem; font-weight: 800; opacity: .8; }
.cap b { font-size: .9rem; letter-spacing: .06em; line-height: 1.1; }
.cap span { font-size: .72rem; line-height: 1.2; overflow-wrap: anywhere; padding-bottom: 6px; }
.cap.t-mod { background: var(--t-mod-bg); color: var(--t-mod); } .cap.t-swap { background: var(--t-swap-bg); color: var(--t-swap); }
.cap.t-rebuild { background: var(--t-rebuild-bg); color: var(--t-rebuild); } .cap.cap-keep, .cap.t-none { background: var(--t-keep-bg); color: var(--t-keep); }
.changes { margin: 0; padding-left: 20px; } .changes li { margin: 6px 0; }
.changes .from { color: var(--muted); }
.eff { display: inline-block; font-size: .72rem; font-weight: 800; text-transform: uppercase; letter-spacing: .05em; border-radius: 5px; padding: 1px 7px; background: var(--chip); color: var(--ink); margin-left: 4px; }
.pair { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin: 12px 0; }
.slip { border: 1px solid var(--line); border-radius: 14px; padding: 10px 12px; background: var(--bg); }
.slip h4 { margin: 0 0 4px; font-size: .9rem; } .slip p { margin: 0; }
.none { color: var(--muted); font-style: italic; }
.recon { margin: 0; padding-left: 18px; } .recon li { margin: 3px 0; } .recon li.warn { color: var(--warn); } .recon li.bad { color: var(--bad); font-weight: 600; } .recon li.info { color: var(--info); } .recon li.none { color: var(--muted); }
.saved { list-style: none; padding: 0; margin: 8px 0 0; }
.hrow { display: flex; gap: 10px; align-items: center; padding: 8px 0; border-bottom: 1px solid var(--line); }
.hrow.none { color: var(--muted); font-style: italic; }
.hdot { width: 16px; height: 14px; border-radius: 4px; flex: none; background: var(--chip); box-shadow: inset 0 -3px 0 rgba(0,0,0,.18); }
.hdot.v-keep { background: var(--t-keep-bg); } .hdot.v-tune { background: var(--t-mod-bg); } .hdot.v-swap { background: var(--t-swap-bg); } .hdot.v-rebuild { background: var(--t-rebuild-bg); }
.hinfo { flex: 1 1 auto; min-width: 0; display: flex; flex-direction: column; } .hinfo b { overflow-wrap: anywhere; }
.hbtns { display: flex; gap: 6px; }
.foot { max-width: 1080px; margin: 0 auto; padding: 10px 20px 40px; color: var(--muted); font-size: .85rem; }
.toasts { position: fixed; right: 16px; bottom: 16px; display: flex; flex-direction: column; gap: 8px; z-index: 20; max-width: min(380px, calc(100vw - 32px)); }
.toast { background: var(--ink); color: var(--panel); padding: 10px 14px; border-radius: 12px; font-size: .88rem; transition: opacity .5s; box-shadow: 0 4px 14px rgba(0,0,0,.2); }
.toast.err { background: var(--bad); color: var(--panel); }
.toast a { color: inherit; font-weight: 700; }
.toast.gone { opacity: 0; }
@media (max-width: 860px) { .two-col, .pair { grid-template-columns: 1fr; } }
@media (max-width: 600px) {
  main { padding: 12px 16px 32px; } .bar { padding: 8px 16px; gap: 6px; } .back-t { display: none; }
  .brand { font-size: .98rem; } .panel { padding: 14px; border-radius: 14px; }
  .parts, .rooms { grid-template-columns: 1fr 1fr; } .board-box { padding: 8px; }
  .cap { width: calc(33.3% - 7px); }
  .verdict-row { align-items: flex-start; } .verdict-row p { flex-basis: 100%; }
  .hrow { flex-wrap: wrap; }
}
@media (max-width: 380px) { .parts, .rooms { grid-template-columns: 1fr; } }
@media print { .bar, .samples, .askbox, .histbox, .exports, .toasts, .foot, .hear { display: none !important; } .panel { break-inside: avoid; } }