/* style.css */
:root {
  --border: rgba(0, 0, 0, .12);
  --muted: rgba(0, 0, 0, .65);
  --bg: #f6f7f9;
  --card: #f5f5f5;
  --margin: 12px;
}

* {
  box-sizing: border-box;
}

html {
  font-size: 12pt;
}

body {
  margin: 0;
  font-family: "Atkinson Hyperlegible Next", system-ui, sans-serif;
  line-height: 1.5;
  background: var(--bg);
  color: #111;
}

.app {
  max-width: 1100px;
  margin: 0 auto;
  padding: 18px;
}

.header h1 {
  margin-top: calc(var(--margin) / 2);
  margin-bottom: calc(var(--margin) / 2);
  font-size: 20pt;
}

.sub {
  margin-top: calc(var(--margin) / 2);
  margin-bottom: calc(var(--margin) / 2);
  color: var(--muted);
}

.controls {
  margin-top: var(--margin);
  margin-bottom: var(--margin);
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  padding: 12px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
}

.control {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 170px;
  /* font-weight: 700; */
}

.control.grow {
  flex: 1;
  min-width: 260px;
  /* font-weight: 700; */
}

label {
  font-size: 12pt;
  color: var(--muted);
}

.rangeRow {
  display: flex;
  align-items: center;
  gap: 10px;
}

input[type="range"] {
  width: 100%;
}

input[type="color"] {
  height: 38px;
  padding: 2px 6px;
  width: 70px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: #fff;
}

.legend {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.chip {
  font-size: 12pt;
  padding: 4px 10px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: rgba(0, 0, 0, .04);
}

.stage {
  margin-top: var(--margin);
  margin-bottom: var(--margin);
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 14px;
}

.canvasWrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  /* horizontal centering */
  justify-content: center;
  /* vertical centering */
}

#wheel {
  width: 300pt;
  height: 300pt;
  touch-action: none;
}

/* .hint {
  margin: var(--margin);
  font-size: 12pt;
  color: var(--muted);
} */

.panel {
  padding: 12px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.swatches {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.swatchCard {
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 10px;
}

.swatchLabel {
  font-size: 12pt;
  color: var(--muted);
  margin-top: var(--margin);
  margin-bottom: var(--margin);
}

.swatch {
  height: 52px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: #fff;
}

.readout {
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 10px;
}

.row {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  padding: 6px 0;
}

.k {
  color: var(--muted);
  font-size: 12pt;
  font-weight: 700;
}

.v {
  font-size: 12pt;
}

.badge {
  padding: 3px 8px;
  border-radius: 999px;
  border: 1px solid var(--border);
  align-self: flex-start;
}

.mono {
  font-family: "Atkinson Hyperlegible Mono", ui-monospace, monospace;
  font-size: 14px;
}

.math summary {
  cursor: pointer;
  color: var(--muted);
  font-size: 12pt;
}

.mathBody {
  margin-top: var(--margin);
  margin-bottom: var(--margin);
  font-size: 12pt;
  line-height: 1.45;
  color: #333;
}

.footer {
  margin-top: var(--margin);
  margin-bottom: var(--margin);
    color: var(--muted);
  font-size: 12pt;
}

@media (max-width: 960px) {
  .stage {
    grid-template-columns: 1fr;
  }
}

.preview {
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 10px;
  margin-top: var(--margin);
  margin-bottom: var(--margin);
}

.previewLabel {
  font-size: 12pt;
  color: var(--muted);
  margin-top: var(--margin);
  margin-bottom: var(--margin);
}

.previewBox {
  border-radius: 10px;
  padding: 12px;
}

.pv {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.pvBadges {
  display: inline-flex;
  gap: 6px;
  flex-shrink: 0;
}

.pvBadge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 6px;
  border-radius: 999px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
  font-size: 12px;
  line-height: 1;
  border: 1px solid rgba(0, 0, 0, 0.15);
  background: rgba(255, 255, 255, 0.6);
}

.pvBadge.pass {
  border-color: rgba(0, 140, 0, 0.35);
  background: rgba(0, 200, 0, 0.12);
}

.pvBadge.fail {
  border-color: rgba(140, 0, 0, 0.35);
  background: rgba(200, 0, 0, 0.12);
}


.pv-light {
  font-weight: 300;
}

.pv-normal {
  font-weight: 400;
}

.pv-bold {
  font-weight: 700;
}

.pv-italic {
  font-style: italic;
}

.pv-20 {
  font-size: 20pt;
}

.pv-18 {
  font-size: 18pt;
}

.pv-14 {
  font-size: 14pt;
}

.previewGrid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.previewSans {
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
}

.previewSerif {
  font-family: "Times New Roman", Times, serif;
}

/* .k.help {
  text-decoration: underline dotted;
  text-underline-offset: 2px;
  cursor: help;
} */

.k.help {
  text-decoration: underline dotted;
  text-underline-offset: 2px;
  cursor: help;
  display: flex;
  align-items: left;
  gap: 18px;
  /* cursor: pointer; */
  user-select: none;
  font-size: medium;
}

.k.help input {
  transform: translateY(-3px);
}

.bgRow {
  display: flex;
  gap: 10px;
  align-items: center;
}

#confirmBg {
  height: 38px;
  padding: 0 12px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: #fff;
  cursor: pointer;
}

#confirmBg:active {
  transform: translateY(1px);
}

.bgMeta {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  color: var(--muted);
  font-size: 12pt;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}