:root {
  --bg: #111113;
  --panel: #1b1b1f;
  --panel-2: #232329;
  --line: #34343c;
  --text: #f1f0ec;
  --muted: #a3a2a8;
  --accent: #ff4f2e;
  --accent-ink: #fff;
  --focus: #ffcf3d;
  --exact: #3ccf7a;
  --close: #9ccf3c;
  --rough: #f2b230;
  --far: #ff6a55;
  --radius: 10px;
  color-scheme: dark;
}
@media (prefers-color-scheme: light) {
  :root {
    --bg: #f4f2ee;
    --panel: #ffffff;
    --panel-2: #f0eee9;
    --line: #dcd8d0;
    --text: #18171a;
    --muted: #64626a;
    --accent: #e5391a;
    --focus: #1f6feb;
    --exact: #198a4a;
    --close: #5f8a12;
    --rough: #a86d00;
    --far: #c23a28;
    color-scheme: light;
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 15px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
.wrap { max-width: 1280px; margin: 0 auto; padding: 0 16px; }
h1, h2 { margin: 0; line-height: 1.2; }
h1 { font-size: clamp(26px, 4vw, 40px); letter-spacing: -0.02em; font-weight: 800; }
h2 { font-size: 17px; font-weight: 700; display: flex; align-items: center; gap: 8px; }
.site-header { padding: 28px 0 18px; }
.tagline { color: var(--muted); margin: 6px 0 0; max-width: 60ch; }
.site-footer { color: var(--muted); font-size: 13px; padding-top: 8px; padding-bottom: 40px; }
.site-footer .credit { color: var(--text); font-size: 14px; margin-bottom: 6px; }
.site-footer a { color: var(--text); font-weight: 600; text-decoration-color: var(--accent); text-underline-offset: 3px; }
.site-footer a:hover { color: var(--accent); }

#faq { margin-top: 16px; }
.faq h2 { margin-bottom: 6px; }
.faq details { border-top: 1px solid var(--line); }
.faq details:last-child { border-bottom: 1px solid var(--line); }
.faq summary { cursor: pointer; padding: 12px 0; font-weight: 600; list-style: none; display: flex; justify-content: space-between; gap: 12px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--muted); font-weight: 400; font-size: 18px; line-height: 1; }
.faq details[open] summary::after { content: "–"; }
.faq details p { margin: 0 0 14px; color: var(--muted); line-height: 1.55; max-width: 72ch; }

.layout {
  display: grid;
  gap: 16px;
  grid-template-columns: 340px minmax(0, 1fr);
  grid-template-areas: "setup preview" "colors colors" "results results";
  align-items: start;
}
.setup { grid-area: setup; }
.preview { grid-area: preview; }
.colors { grid-area: colors; }
.results { grid-area: results; }
@media (min-width: 1100px) {
  .layout { grid-template-columns: 340px minmax(0, 1fr) minmax(0, 1fr); grid-template-areas: "setup preview preview" "colors colors results"; }
  .results { position: sticky; top: 16px; }
}
@media (max-width: 760px) {
  .layout { grid-template-columns: 1fr; grid-template-areas: "setup" "preview" "colors" "results"; }
}

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px;
  min-width: 0;
}
.panel > h2, .panel-head { margin-bottom: 12px; }
.panel-head { display: flex; justify-content: space-between; align-items: center; gap: 8px; flex-wrap: wrap; }
.step {
  display: inline-grid; place-items: center;
  width: 24px; height: 24px; border-radius: 50%;
  background: var(--accent); color: var(--accent-ink); font-size: 13px; font-weight: 800;
}
.hint { color: var(--muted); font-size: 13px; margin: 4px 0 10px; }
.status { min-height: 1.5em; font-size: 13px; color: var(--muted); margin: 8px 0 0; }
.status.error { color: var(--far); }

.field { display: flex; flex-direction: column; gap: 4px; font-size: 13px; color: var(--muted); margin-bottom: 12px; }
.field output { color: var(--text); font-weight: 700; margin-left: 4px; }
.field-row { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 8px; }
.field-row .field { margin-bottom: 0; }
input[type="number"], select {
  width: 100%;
  font: inherit; color: var(--text);
  background: var(--panel-2);
  border: 1px solid var(--line);
  border-radius: 7px;
  padding: 7px 8px;
  min-width: 0;
}
input[type="range"] { width: 100%; accent-color: var(--accent); }
:focus-visible { outline: 2px solid var(--focus); outline-offset: 2px; }

.drop {
  display: grid; place-items: center; text-align: center;
  min-height: 120px; padding: 12px; margin-bottom: 14px;
  border: 2px dashed var(--line); border-radius: var(--radius);
  background: var(--panel-2); cursor: pointer; color: var(--muted);
  background-size: cover; background-position: center;
  transition: border-color .15s;
}
.drop:hover, .drop.over { border-color: var(--accent); }
.drop strong { color: var(--text); }
.drop.has-image .drop-text { background: color-mix(in srgb, var(--bg) 80%, transparent); padding: 6px 10px; border-radius: 6px; }

.btn {
  font: inherit; font-weight: 600; cursor: pointer;
  color: var(--text); background: var(--panel-2);
  border: 1px solid var(--line); border-radius: 8px; padding: 8px 14px;
}
.btn:hover:not(:disabled) { border-color: var(--muted); }
.btn:disabled { opacity: .45; cursor: not-allowed; }
.btn.primary { width: 100%; background: var(--accent); color: var(--accent-ink); border-color: var(--accent); padding: 11px; }

.seg { display: inline-flex; border: 1px solid var(--line); border-radius: 8px; overflow: hidden; }
.seg button { font: inherit; font-size: 13px; padding: 6px 10px; border: 0; background: transparent; color: var(--muted); cursor: pointer; }
.seg button[aria-selected="true"] { background: var(--panel-2); color: var(--text); font-weight: 600; }

.canvas-box {
  position: relative; display: grid; place-items: center;
  background: repeating-conic-gradient(var(--panel-2) 0 25%, var(--panel) 0 50%) 0 0 / 20px 20px;
  border-radius: 8px; min-height: 260px; overflow: hidden;
}
#canvas { display: block; max-width: 100%; max-height: 62vh; width: auto; height: auto; image-rendering: auto; }
#canvas.picking { cursor: crosshair; }
.canvas-empty { position: absolute; color: var(--muted); margin: 0; }

.rows { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; grid-template-columns: repeat(auto-fill, minmax(min(100%, 380px), 1fr)); }
.row {
  display: grid; grid-template-columns: auto minmax(0, 1fr) auto; gap: 10px; align-items: start;
  background: var(--panel-2); border: 1px solid var(--line); border-radius: 9px; padding: 10px;
}
.row.active { border-color: var(--focus); }
.row.base { border-style: dashed; }
.sw-pair { display: flex; align-items: center; gap: 4px; }
.sw { width: 44px; height: 44px; border-radius: 7px; border: 1px solid rgba(128,128,128,.5); display: block; }
.sw.orig { cursor: pointer; position: relative; overflow: hidden; }
.sw.orig input { position: absolute; inset: 0; width: 100%; height: 100%; opacity: 0; cursor: pointer; }
.arrow { color: var(--muted); }
.row-top { display: flex; gap: 8px; align-items: baseline; flex-wrap: wrap; margin-bottom: 6px; }
.share { font-weight: 800; font-variant-numeric: tabular-nums; }
.paint-name { font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; max-width: 100%; }
.quality { font-size: 12px; font-weight: 700; padding: 1px 7px; border-radius: 99px; border: 1px solid currentColor; }
.q-exact { color: var(--exact); } .q-close { color: var(--close); } .q-rough { color: var(--rough); } .q-far { color: var(--far); }
.row-controls { display: grid; grid-template-columns: minmax(0, 2fr) minmax(0, 3fr); gap: 6px; }
.row-controls select { font-size: 13px; padding: 5px 6px; }
.base-toggle { display: flex; gap: 6px; align-items: center; font-size: 13px; color: var(--muted); margin-top: 6px; cursor: pointer; }
.row-actions { display: flex; flex-direction: column; gap: 4px; }
.icon {
  width: 32px; height: 32px; display: grid; place-items: center;
  font-size: 16px; line-height: 1; cursor: pointer;
  color: var(--text); background: var(--panel); border: 1px solid var(--line); border-radius: 7px;
}
.icon:hover { border-color: var(--muted); }
.icon[aria-pressed="true"] { border-color: var(--focus); color: var(--focus); }
.icon.del:hover { color: var(--far); border-color: var(--far); }

@media (max-width: 480px) {
  .row { grid-template-columns: minmax(0, 1fr) auto; }
  .sw-pair { grid-column: 1; }
  .row-main { grid-column: 1 / -1; grid-row: 2; }
  .row-actions { grid-column: 2; grid-row: 1; flex-direction: row; }
  .row-controls { grid-template-columns: 1fr; }
  .totals b { font-size: 18px; }
}

.settings { margin-bottom: 14px; border: 1px solid var(--line); border-radius: 8px; padding: 8px 12px; }
.settings summary { cursor: pointer; font-weight: 600; font-size: 14px; }
.settings-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: 0 10px; margin-top: 10px; }

.list { width: 100%; border-collapse: collapse; font-size: 14px; }
.list th { text-align: left; font-size: 12px; color: var(--muted); font-weight: 600; padding: 6px 4px; border-bottom: 1px solid var(--line); }
.list td { padding: 7px 4px; border-bottom: 1px solid var(--line); vertical-align: middle; }
.list td.num, .list th.num { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
.list .sw { width: 22px; height: 22px; border-radius: 4px; display: inline-block; vertical-align: middle; }
.list .sub { display: block; color: var(--muted); font-size: 12px; }
.list-title { font-size: 14px; margin: 14px 0 4px; }
.totals { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; margin: 14px 0 4px; }
.total { background: var(--panel-2); border-radius: 8px; padding: 10px; }
.total b { display: block; font-size: 22px; font-variant-numeric: tabular-nums; }
.total span { color: var(--muted); font-size: 12px; }
.export { display: flex; gap: 6px; flex-wrap: wrap; margin-top: 12px; }
.export .check { flex-basis: 100%; display: flex; gap: 6px; align-items: center; font-size: 14px; color: var(--muted); cursor: pointer; margin-bottom: 2px; }
.totals.two { grid-template-columns: repeat(2, 1fr); }

button.sw.match { cursor: pointer; padding: 0; }
button.sw.match:hover { outline: 2px solid var(--muted); outline-offset: 1px; }
.paint-btn {
  display: flex; align-items: center; gap: 6px; min-width: 0; width: 100%;
  font: inherit; font-size: 13px; color: var(--text); text-align: left; cursor: pointer;
  background: var(--panel-2); border: 1px solid var(--line); border-radius: 7px; padding: 4px 6px;
}
.paint-btn:hover { border-color: var(--muted); }
.paint-btn .sw { width: 18px; height: 18px; border-radius: 4px; flex: none; }
.pb-name { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.pb-caret { color: var(--muted); }

#chart {
  width: min(960px, calc(100vw - 24px)); max-height: calc(100vh - 24px);
  padding: 0; border: 1px solid var(--line); border-radius: 12px;
  background: var(--panel); color: var(--text);
  display: none; flex-direction: column;
}
#chart[open] { display: flex; }
#chart::backdrop { background: rgba(0, 0, 0, .6); }
.chart-head { display: flex; justify-content: space-between; align-items: center; padding: 14px 16px 0; }
.chart-compare { display: flex; align-items: center; gap: 8px; padding: 10px 16px; font-size: 14px; flex-wrap: wrap; }
.chart-compare .sw { width: 32px; height: 32px; }
#chartCurName { font-weight: 600; }
.chart-tools { display: flex; gap: 8px; padding: 0 16px 12px; flex-wrap: wrap; border-bottom: 1px solid var(--line); }
.chart-tools input {
  flex: 1 1 200px; font: inherit; color: var(--text);
  background: var(--panel-2); border: 1px solid var(--line); border-radius: 7px; padding: 7px 8px;
}
.chart-grid {
  overflow-y: auto; padding: 12px 16px 16px;
  display: grid; gap: 8px; grid-template-columns: repeat(auto-fill, minmax(118px, 1fr));
  grid-auto-rows: max-content; align-content: start; flex: 1 1 auto; min-height: 0;
}
.chart-head, .chart-compare, .chart-tools { flex: none; }
.card {
  display: flex; flex-direction: column; text-align: left; cursor: pointer; padding: 0; overflow: hidden;
  font: inherit; color: var(--text); background: var(--panel-2);
  border: 1px solid var(--line); border-radius: 8px;
}
.card:hover { border-color: var(--muted); }
.card.selected { border-color: var(--focus); box-shadow: 0 0 0 2px var(--focus); }
.card-sw { display: block; flex: none; height: 64px; border-bottom: 1px solid rgba(128,128,128,.35); }
.card-name { padding: 6px 8px 0; font-size: 13px; font-weight: 600; line-height: 1.25; overflow-wrap: anywhere; }
.card-meta { display: flex; justify-content: space-between; gap: 4px; padding: 2px 8px 7px; font-size: 11px; color: var(--muted); }
.card-meta span:last-child { font-weight: 700; }

#feedback { margin-top: 16px; }
.feedback { max-width: 760px; }
.field-row.two { grid-template-columns: 1fr 1fr; margin-bottom: 12px; }
@media (max-width: 560px) { .field-row.two { grid-template-columns: 1fr; } }
textarea {
  width: 100%; font: inherit; color: var(--text); resize: vertical;
  background: var(--panel-2); border: 1px solid var(--line); border-radius: 7px; padding: 8px;
}
input[type="email"] {
  width: 100%; font: inherit; color: var(--text);
  background: var(--panel-2); border: 1px solid var(--line); border-radius: 7px; padding: 7px 8px;
}
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; opacity: 0; }
.feedback-actions { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.feedback-actions .btn.primary { width: auto; padding: 10px 28px; }
.feedback-actions .status { margin: 0; }
.status.ok { color: var(--exact); }

.print-summary { display: none; }

@media print {
  @page { margin: 14mm; }
  .print-summary { display: grid; grid-template-columns: 1fr 1fr 1.1fr; gap: 12px; align-items: start; margin: 4px 0 10px; break-inside: avoid; }
  .print-summary figure { margin: 0; }
  .print-summary canvas { width: 100%; height: auto; display: block; border: 1px solid #ccc; border-radius: 6px; }
  .print-summary figcaption { font-size: 11px; color: #555; margin-top: 4px; }
  .ps-meta { font-size: 12px; line-height: 1.45; display: grid; grid-template-columns: auto 1fr; gap: 5px 10px; }
  .list td { padding: 4px; }
  /* wide color bars: the swatch is what people match against in the shop */
  .list td:first-child { width: 26mm; }
  .list .sw { width: 24mm; height: 7.5mm; border-radius: 3px; display: block; }
  .list td:nth-child(2), .list th:nth-child(2) { padding-left: 4mm; }
  .totals { margin: 6px 0 2px; }
  .total { padding: 7px 10px; }
  .total b { font-size: 18px; }
  .results h2 .step { display: none; }
  .site-header { padding: 0 0 6px; }
  .site-header h1 { font-size: 24px; }
  .total { border: 1px solid #ddd; }
  .list tr { break-inside: avoid; }
  #feedback, #faq, #chart, .site-footer { display: none !important; }
  :root { --bg: #fff; --panel: #fff; --panel-2: #f3f3f3; --line: #ccc; --text: #000; --muted: #444; color-scheme: light; }
  .setup, .preview, .colors, .settings, .export, .site-footer .no-print { display: none !important; }
  .layout { display: block; }
  .panel { border: 0; padding: 0; }
  .site-header .tagline { display: none; }
  .list .sw { -webkit-print-color-adjust: exact; print-color-adjust: exact; }
}