/* TILScout Rater. Layout: a workbench. A true-neutral grey stage holds the patch image, a narrow
   decision rail sits beside it, and a hairline progress ruler runs under the header.
   No web fonts are loaded from other servers (privacy): local fonts are used when installed,
   otherwise the system's own fonts. */
:root{
  --bg:#edf1f0;
  --panel:#ffffff;
  --ink:#15201e;
  --muted:#566563;
  --line:#d2dad8;
  --accent:#0a6a62;
  --accent-ink:#ffffff;
  --accent-soft:#dbeeea;
  --stage:#c6c6c6;           /* no hue at all, so the stain colours read correctly */
  --warn:#8a5000;
  --warn-soft:#fbedd4;
  --ok:#2b7838;
  --ok-soft:#e1f1e3;
  --font-label:"IBM Plex Sans Condensed","Avenir Next Condensed","Roboto Condensed","Arial Narrow",system-ui,sans-serif;
  --font-body:"Atkinson Hyperlegible",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --font-data:"IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --radius:6px;
  color-scheme:light;
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --bg:#101413; --panel:#181d1c; --ink:#e2e9e7; --muted:#92a09d; --line:#2a3230;
    --accent:#4bc2b4; --accent-ink:#04211e; --accent-soft:#11312d;
    --stage:#2b2b2b; --warn:#efb24a; --warn-soft:#382810; --ok:#6bc978; --ok-soft:#14301a;
    color-scheme:dark;
  }
}
:root[data-theme="dark"]{
  --bg:#101413; --panel:#181d1c; --ink:#e2e9e7; --muted:#92a09d; --line:#2a3230;
  --accent:#4bc2b4; --accent-ink:#04211e; --accent-soft:#11312d;
  --stage:#2b2b2b; --warn:#efb24a; --warn-soft:#382810; --ok:#6bc978; --ok-soft:#14301a;
  color-scheme:dark;
}
*,*::before,*::after{box-sizing:border-box}
[hidden]{display:none!important}
html{padding-top:env(safe-area-inset-top,0px);padding-bottom:env(safe-area-inset-bottom,0px)}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--font-body);font-size:15px;line-height:1.45;-webkit-font-smoothing:antialiased}
button,input,textarea{font:inherit;color:inherit}
button{cursor:pointer}
button:disabled{cursor:not-allowed;opacity:.45}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
a{color:var(--accent)}
.mono{font-family:var(--font-data);font-variant-numeric:tabular-nums}
kbd{font-family:var(--font-data);font-size:12px;font-weight:500;line-height:1;display:inline-grid;place-items:center;min-width:22px;height:22px;padding:0 5px;border:1px solid var(--line);border-bottom-width:2px;border-radius:4px;background:var(--bg);color:var(--ink)}

/* header */
.top{position:sticky;top:env(safe-area-inset-top,0px);z-index:10;background:var(--panel);border-bottom:1px solid var(--line)}
.top-inner{max-width:1320px;margin:0 auto;display:flex;flex-wrap:wrap;align-items:center;gap:10px 22px;padding-block:10px;padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px))}
.brand{order:1;display:flex;flex-direction:column;gap:1px;margin-right:auto;min-width:0}
.brand-name{font-family:var(--font-label);font-weight:600;font-size:18px;letter-spacing:.01em}
.brand-sub{font-size:12.5px;color:var(--muted)}
.rater-chip{order:2;display:inline-flex;align-items:center;gap:6px;padding:6px 12px;border:1px solid var(--line);border-radius:999px;background:var(--panel);font-size:13px;color:var(--muted)}
.rater-chip b{font-family:var(--font-data);font-weight:500;color:var(--ink)}
.steps{order:3;flex-basis:100%;display:flex;gap:4px}
.step{flex:1;display:inline-flex;justify-content:center;align-items:baseline;gap:8px;padding:7px 10px;border:1px solid transparent;border-radius:var(--radius);background:none;color:var(--muted);font-family:var(--font-label);font-weight:500;font-size:13px;letter-spacing:.07em;text-transform:uppercase}
.step:hover{color:var(--ink);border-color:var(--line)}
.step.is-active{color:var(--ink);background:var(--accent-soft)}
.step-count{font-family:var(--font-data);font-size:12.5px;letter-spacing:0;text-transform:none;font-variant-numeric:tabular-nums}
.step.is-active .step-count{color:var(--accent)}
@media (min-width:760px){.steps{order:2;flex-basis:auto}.step{flex:none}.rater-chip{order:3}}
.ruler{height:3px;background:var(--line)}
.ruler-fill{height:100%;width:0;background:var(--accent);transition:width .25s ease}

/* main */
main{max-width:1320px;margin:0 auto;padding-block:18px 40px;padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px))}
.view-a{display:grid;grid-template-columns:minmax(0,1fr) 360px;gap:20px 28px;align-items:start}
@media (max-width:900px){.view-a{grid-template-columns:minmax(0,1fr)}}
.stage-col{min-width:0;display:flex;flex-direction:column;gap:10px}
.stage-head{display:flex;align-items:center;flex-wrap:wrap;gap:6px 14px}
.patch-pos{font-family:var(--font-label);font-weight:600;font-size:14px;letter-spacing:.08em;text-transform:uppercase}
.flag-badge{font-family:var(--font-label);font-weight:600;font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--warn);background:var(--warn-soft);padding:3px 8px;border-radius:4px}
.stage{position:relative;background:var(--stage);padding:14px;display:flex;justify-content:center}
#patch-canvas{display:block;max-width:100%}
.stage-msg{position:absolute;inset:14px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;color:var(--ink);font-weight:700;text-align:center;padding:16px}
.stage-msg span{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:8px 14px}
.stage-tools{display:flex;flex-wrap:wrap;align-items:center;gap:8px 10px}
.tool{display:inline-flex;align-items:center;gap:8px;padding:6px 10px 6px 7px;border:1px solid var(--line);border-radius:var(--radius);background:var(--panel);font-size:14px}
.tool:hover{border-color:var(--muted)}
.tool[aria-pressed="true"]{border-color:var(--accent);color:var(--accent)}
.tool[aria-pressed="true"] kbd{border-color:var(--accent);color:var(--accent)}
.scale-note{margin-left:auto;font-size:12.5px;color:var(--muted)}
@media (pointer:coarse){.tool kbd,.flag kbd{display:none}.tool{padding:8px 12px}}

/* decision rail */
.rail{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:18px;display:flex;flex-direction:column;gap:14px;min-width:0}
.question{margin:0;font-weight:700;font-size:16px;text-wrap:balance}
.choices{display:flex;flex-direction:column;gap:8px}
.choice{display:grid;grid-template-columns:auto minmax(0,1fr);align-items:center;gap:12px;width:100%;min-height:62px;padding:11px 14px 11px 12px;text-align:left;background:var(--panel);border:1.5px solid var(--line);border-radius:var(--radius);transition:background-color .12s,border-color .12s}
.choice:hover:not(:disabled){border-color:var(--muted)}
.choice kbd{width:30px;height:30px;font-size:15px}
.choice[aria-pressed="true"]{background:var(--accent-soft);border-color:var(--accent)}
.choice[aria-pressed="true"] kbd{background:var(--accent);border-color:var(--accent);color:var(--accent-ink)}
.choice-name{display:block;font-weight:700;font-size:16px}
.choice-def{display:block;font-size:13.5px;color:var(--muted)}
.flag{display:flex;align-items:center;gap:10px;width:100%;padding:9px 12px;text-align:left;background:none;border:1.5px dashed var(--line);border-radius:var(--radius);color:var(--muted)}
.flag:hover{border-color:var(--muted)}
.flag[aria-pressed="true"]{border-style:solid;border-color:var(--warn);background:var(--warn-soft);color:var(--warn);font-weight:700}
.flag[aria-pressed="true"] kbd{border-color:var(--warn);color:var(--warn)}
.nav{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:9px 14px;border:1px solid var(--line);border-radius:var(--radius);background:var(--panel);font-weight:700;text-decoration:none;color:var(--ink)}
.btn:hover:not(:disabled){border-color:var(--muted)}
.btn.primary{background:var(--accent);border-color:var(--accent);color:var(--accent-ink)}
.nav-hint{margin:0;font-size:13.5px;color:var(--warn)}
.done{background:var(--ok-soft);border:1px solid var(--ok);border-radius:var(--radius);padding:12px;display:flex;flex-direction:column;gap:8px;align-items:flex-start}
.done p{margin:0;color:var(--ok);font-weight:700}
.saved-line{margin:0;font-size:12.5px;color:var(--muted)}
.saved-line.is-warn{color:var(--warn);font-weight:700}
.howto{border-top:1px solid var(--line);padding-top:12px}
.howto summary{cursor:pointer;font-family:var(--font-label);font-weight:600;font-size:13px;letter-spacing:.08em;text-transform:uppercase}
.howto ol{margin:10px 0 0;padding-left:20px;display:flex;flex-direction:column;gap:6px;font-size:14px}
.keys{font-size:12.5px;color:var(--muted);margin:10px 0 0}

/* sheets: cores, finish, admin, notices */
.sheet{max-width:880px;margin:0 auto;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:20px 22px 24px;display:flex;flex-direction:column;gap:14px}
.sheet.narrow{max-width:560px}
.sheet.wide{max-width:1100px}
.sheet h1,.sheet h2{margin:0;font-family:var(--font-label);font-weight:600;font-size:21px;letter-spacing:.01em;text-wrap:balance}
.sheet h3{margin:6px 0 0;font-family:var(--font-label);font-weight:600;font-size:13.5px;letter-spacing:.08em;text-transform:uppercase}
.sheet p{margin:0;max-width:65ch}
.lede{color:var(--muted)}
.cores{list-style:none;margin:0;padding:0}
.core-row{display:grid;grid-template-columns:2rem minmax(0,1fr) auto auto;align-items:center;gap:8px 18px;padding:12px 0;border-top:1px solid var(--line)}
.core-n{color:var(--muted);font-size:13px}
.core-row.is-done .core-n{color:var(--ok);font-weight:500}
.core-where{display:flex;flex-direction:column;min-width:0}
.core-id{font-weight:500;font-size:15px}
.core-loc{font-size:13.5px;color:var(--muted)}
.core-input{display:flex;align-items:center;gap:6px}
.core-input input{width:4.4rem;padding:7px 8px;text-align:right;font-family:var(--font-data);font-size:17px;font-weight:500;font-variant-numeric:tabular-nums;background:var(--bg);border:1px solid var(--line);border-radius:var(--radius)}
.core-input input[aria-invalid="true"]{border-color:var(--warn);border-width:2px}
.core-input input:disabled{opacity:.4}
.pct{color:var(--muted)}
.stepper{width:34px;height:34px;display:grid;place-items:center;border:1px solid var(--line);border-radius:var(--radius);background:var(--panel);font-size:18px;line-height:1}
.stepper:hover{border-color:var(--muted)}
.core-na{display:flex;align-items:center;gap:6px;font-size:14px;color:var(--muted);white-space:nowrap}
.core-err{grid-column:2/-1;margin:0;font-size:13px;color:var(--warn)}
input[type=number]{-moz-appearance:textfield;appearance:textfield}
input[type=number]::-webkit-inner-spin-button,input[type=number]::-webkit-outer-spin-button{-webkit-appearance:none;margin:0}
@media (max-width:600px){.core-row{grid-template-columns:2rem minmax(0,1fr)}.core-input,.core-na{grid-column:2}}
.summary{display:flex;flex-direction:column;border-top:1px solid var(--line)}
.sum-row{display:flex;justify-content:space-between;align-items:center;gap:6px 14px;flex-wrap:wrap;padding:10px 0;border-bottom:1px solid var(--line)}
.sum-title{font-family:var(--font-label);font-weight:600;font-size:12.5px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.sum-main{font-size:16px;font-weight:700}
.sum-note{font-size:13.5px;color:var(--muted)}
.pill{font-family:var(--font-label);font-weight:600;font-size:12px;letter-spacing:.06em;text-transform:uppercase;padding:4px 9px;border-radius:999px;white-space:nowrap}
.pill.ok{background:var(--ok-soft);color:var(--ok)}
.pill.todo{background:var(--warn-soft);color:var(--warn)}
.pill.off{background:var(--bg);color:var(--muted)}
.missing{display:flex;flex-direction:column;gap:8px}
.missing-line{display:flex;flex-wrap:wrap;gap:6px;align-items:center;font-size:13.5px}
.jump{padding:3px 8px;border:1px solid var(--line);border-radius:4px;background:var(--panel);font-family:var(--font-data);font-size:12.5px}
.jump:hover{border-color:var(--accent);color:var(--accent)}
.thanks{background:var(--ok-soft);border:1px solid var(--ok);border-radius:var(--radius);padding:14px 16px;display:flex;flex-direction:column;gap:4px}
.thanks strong{color:var(--ok)}

/* admin */
.admin-actions{display:flex;flex-wrap:wrap;gap:8px}
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius)}
table.progress{border-collapse:collapse;width:100%;min-width:720px;font-size:14px}
.progress th,.progress td{padding:9px 12px;border-bottom:1px solid var(--line);text-align:left;vertical-align:middle}
.progress th{font-family:var(--font-label);font-weight:600;font-size:12px;letter-spacing:.07em;text-transform:uppercase;color:var(--muted);background:var(--bg)}
.progress tr:last-child td{border-bottom:0}
.progress td.num{font-family:var(--font-data);font-variant-numeric:tabular-nums;white-space:nowrap}
.bar{display:block;width:120px;height:6px;border-radius:3px;background:var(--line);overflow:hidden;margin-top:4px}
.bar i{display:block;height:100%;background:var(--accent)}
.empty{padding:18px;color:var(--muted)}
.cmd{display:block;font-family:var(--font-data);font-size:13px;background:var(--bg);border:1px solid var(--line);border-radius:var(--radius);padding:8px 10px;overflow-x:auto;white-space:pre}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}