:root {
  --bg: #111215;
  --panel: #17181c;
  --raise: #1e2025;
  --line: #2b2d33;
  --line-strong: #3a3d45;
  --text: #eeece6;
  --muted: #a8a59d;
  --faint: #8a877f;
  --accent: #ffc65c;
  --accent-ink: #1b1406;
  --good: #8fd6a8;
  --warn: #ffb36b;
  --info: #9cc4ff;
  --ui: "Inter Variable", system-ui, sans-serif;
  --head: "Space Grotesk Variable", "Inter Variable", sans-serif;
  --mono: "JetBrains Mono Variable", ui-monospace, monospace;
  color-scheme: dark;
}

* {
  box-sizing: border-box;
}
html,
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 400 14px/1.45 var(--ui);
  -webkit-font-smoothing: antialiased;
}
button,
input,
select,
textarea {
  font: inherit;
  color: inherit;
}
h1,
h2,
p {
  margin: 0;
}
[hidden] {
  display: none !important;
}
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* --- frame ----------------------------------------------------------------- */
.app {
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
  height: 100vh;
  height: 100dvh;
}
.bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 20px;
  border-bottom: 1px solid var(--line);
  background: var(--panel);
}
.ident {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}
.mark {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  flex: none;
  background:
    radial-gradient(circle at 34% 30%, rgba(255, 255, 255, 0.95) 0 6%, transparent 26%),
    radial-gradient(circle at 50% 50%, #e9c47c 0 40%, #8a6526 72%, #3a2a10 100%);
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.08);
}
h1 {
  font: 600 17px/1.1 var(--head);
  letter-spacing: -0.01em;
}
.sub {
  color: var(--muted);
  font-size: 12.5px;
  margin-top: 2px;
}

/* tabs / segmented radios */
.views,
.code-tabs {
  display: inline-flex;
  padding: 3px;
  gap: 2px;
  border-radius: 10px;
  background: var(--bg);
  border: 1px solid var(--line);
}
.tab {
  position: relative;
}
.tab input,
.seg input,
.env input,
.preset input {
  position: absolute;
  opacity: 0;
  inset: 0;
  margin: 0;
  cursor: pointer;
}
.tab span {
  display: block;
  padding: 7px 14px;
  border-radius: 7px;
  font-weight: 550;
  font-size: 13px;
  color: var(--muted);
  white-space: nowrap;
  transition: background-color 0.18s ease, color 0.18s ease;
}
.tab.small span {
  padding: 5px 11px;
  font-size: 12px;
}
.tab input:checked + span {
  background: var(--raise);
  color: var(--text);
  box-shadow: inset 0 0 0 1px var(--line-strong);
}
.tab input:focus-visible + span,
.seg input:focus-visible + span,
.env input:focus-visible ~ span:last-child,
.preset input:focus-visible ~ .preset-text {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.lab {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 432px;
  min-height: 0;
}

/* --- viewport -------------------------------------------------------------- */
.viewport {
  position: relative;
  min-height: 0;
  overflow: hidden;
  background: #2a2b2f;
}
canvas.view {
  display: block;
  width: 100%;
  height: 100%;
  touch-action: none;
  cursor: grab;
}
canvas.view:active {
  cursor: grabbing;
}
canvas.view:focus-visible {
  outline-offset: -3px;
}
.fallback {
  position: absolute;
  inset: 0;
  display: grid;
  place-content: center;
  gap: 8px;
  max-width: 420px;
  margin: auto;
  padding: 24px;
  text-align: center;
  color: var(--muted);
}
.fallback-title {
  font: 600 18px var(--head);
  color: var(--text);
}
.hud {
  position: absolute;
  left: 16px;
  right: 16px;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  pointer-events: none;
}
.hud > * {
  pointer-events: auto;
}
.hud-top {
  top: 16px;
}
.hud-bottom {
  bottom: 16px;
  align-items: center;
  flex-wrap: wrap;
}
.readout,
.envs,
.light,
.spin,
.view-caption,
.sample-note {
  background: rgba(17, 18, 21, 0.78);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.08);
}
.readout {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 14px 9px 10px;
  border-radius: 12px;
  max-width: min(560px, 100%);
}
.chip-swatch {
  width: 26px;
  height: 26px;
  border-radius: 7px;
  flex: none;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.18);
}
.readout-name {
  font: 600 15px/1.2 var(--head);
}
.readout-values {
  font: 500 12px/1.4 var(--mono);
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}
.view-caption {
  padding: 7px 11px;
  border-radius: 9px;
  font-size: 12px;
  color: var(--muted);
  max-width: 360px;
}
.envs {
  display: flex;
  flex-wrap: wrap;
  gap: 2px;
  padding: 3px;
  border-radius: 11px;
}
.env {
  position: relative;
  display: flex;
  align-items: center;
}
.env span:last-child {
  display: flex;
  align-items: center;
  padding: 6px 10px 6px 28px;
  border-radius: 8px;
  font-size: 12.5px;
  font-weight: 550;
  color: var(--muted);
  white-space: nowrap;
}
.env input:checked ~ span:last-child {
  background: rgba(255, 255, 255, 0.1);
  color: var(--text);
}
.env-dot {
  position: absolute;
  left: 9px;
  width: 13px;
  height: 13px;
  border-radius: 50%;
  pointer-events: none;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.25);
}
.env-softbox {
  background: linear-gradient(180deg, #fffaf2 0 30%, #3a3c41 60%);
}
.env-overcast {
  background: linear-gradient(180deg, #c3cdd8, #e9ebee 55%, #6c6862 56%);
}
.env-golden {
  background: linear-gradient(180deg, #3e6696, #f2b27a 55%, #3a2c24 56%);
}
.env-neon {
  background: linear-gradient(90deg, #3fe0d0 0 22%, #14161d 23% 77%, #ff5f9e 78%);
}
.light {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 6px 12px;
  border-radius: 11px;
  font-size: 12.5px;
  color: var(--muted);
  white-space: nowrap;
}
.light input {
  width: 128px;
}
.light-value {
  font: 500 12px var(--mono);
  min-width: 38px;
  text-align: right;
  color: var(--text);
  font-variant-numeric: tabular-nums;
}
.spin {
  padding: 8px 13px;
  border-radius: 11px;
  font-size: 12.5px;
  font-weight: 550;
  cursor: pointer;
  margin-left: auto;
}
.spin:hover {
  background: rgba(40, 42, 48, 0.9);
}
.sample-note {
  position: absolute;
  right: 16px;
  bottom: 66px;
  padding: 4px 9px;
  border-radius: 7px;
  font-size: 11.5px;
  color: var(--muted);
}

/* --- panel ----------------------------------------------------------------- */
.panel {
  border-left: 1px solid var(--line);
  background: var(--panel);
  overflow-y: auto;
  overscroll-behavior: contain;
  min-height: 0;
}
.block {
  padding: 18px 20px 20px;
  border-bottom: 1px solid var(--line);
}
.block-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 12px;
}
h2 {
  font: 600 12px/1.2 var(--head);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text);
}
.ext {
  font: 500 10.5px var(--mono);
  color: var(--faint);
  padding: 2px 7px;
  border-radius: 6px;
  border: 1px solid var(--line);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  min-width: 0;
}
.ext.on {
  color: var(--accent);
  border-color: rgba(255, 198, 92, 0.38);
  background: rgba(255, 198, 92, 0.07);
}
button.link {
  background: none;
  border: 0;
  padding: 2px 0;
  color: var(--muted);
  font-size: 12px;
  text-decoration: underline;
  text-underline-offset: 3px;
  cursor: pointer;
}
button.link:hover {
  color: var(--text);
}

.presets {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
}
.preset {
  position: relative;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: var(--bg);
  min-width: 0;
  transition: border-color 0.18s ease, background-color 0.18s ease;
}
.preset:hover {
  border-color: var(--line-strong);
}
.preset:has(input:checked) {
  border-color: rgba(255, 198, 92, 0.7);
  background: rgba(255, 198, 92, 0.06);
}
.ball {
  --c: #888;
  --hi: rgba(255, 255, 255, 0.4);
  --spread: 30%;
  width: 28px;
  height: 28px;
  flex: none;
  border-radius: 50%;
  background:
    radial-gradient(circle at 34% 28%, var(--hi) 0, transparent var(--spread)),
    radial-gradient(circle at 50% 60%, var(--c) 30%, color-mix(in srgb, var(--c) 45%, #000) 100%);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.1);
}
.ball.glass {
  background:
    radial-gradient(circle at 34% 28%, rgba(255, 255, 255, 0.85) 0, transparent 22%),
    radial-gradient(circle at 50% 55%, color-mix(in srgb, var(--c) 30%, transparent) 40%, color-mix(in srgb, var(--c) 70%, #284) 100%);
}
.preset-text {
  display: grid;
  min-width: 0;
  border-radius: 4px;
}
.preset strong {
  font-size: 13px;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.preset small {
  font-size: 11.5px;
  color: var(--muted);
}

.fields {
  display: grid;
  gap: 10px;
}
.field {
  display: grid;
  grid-template-columns: 118px minmax(0, 1fr) 46px;
  align-items: center;
  gap: 10px;
}
.field label {
  font-size: 13px;
  color: var(--muted);
}
.field.color {
  grid-template-columns: 118px minmax(0, 1fr);
}
.field output {
  font: 500 12px var(--mono);
  text-align: right;
  font-variant-numeric: tabular-nums;
}
.name-field {
  margin-top: 12px;
  grid-template-columns: 118px minmax(0, 1fr);
}
.name-field input,
.hex,
select,
textarea {
  width: 100%;
  min-width: 0;
  padding: 7px 10px;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: var(--bg);
}
.name-field input:hover,
.hex:hover,
select:hover,
textarea:hover {
  border-color: var(--line-strong);
}
.hex {
  font: 500 12.5px var(--mono);
  text-transform: lowercase;
}
.hex[aria-invalid="true"] {
  border-color: var(--warn);
}
.color-pair {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 8px;
}
input[type="color"] {
  width: 40px;
  height: 32px;
  padding: 3px;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: var(--bg);
  cursor: pointer;
}
input[type="color"]::-webkit-color-swatch-wrapper {
  padding: 0;
}
input[type="color"]::-webkit-color-swatch {
  border: 0;
  border-radius: 5px;
}

/* range */
input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 22px;
  background: transparent;
  cursor: pointer;
  margin: 0;
}
input[type="range"]::-webkit-slider-runnable-track {
  height: 4px;
  border-radius: 2px;
  background: var(--line-strong);
}
input[type="range"]::-moz-range-track {
  height: 4px;
  border-radius: 2px;
  background: var(--line-strong);
}
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 16px;
  height: 16px;
  margin-top: -6px;
  border-radius: 50%;
  background: var(--text);
  border: 3px solid var(--panel);
  box-shadow: 0 0 0 1px var(--line-strong);
}
input[type="range"]::-moz-range-thumb {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--text);
  border: 3px solid var(--panel);
}
input[type="range"]:focus-visible {
  outline-offset: 0;
}

.patterns {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 12px;
}
.seg {
  position: relative;
}
.seg span {
  display: block;
  padding: 5px 10px;
  border-radius: 7px;
  border: 1px solid var(--line);
  font-size: 12.5px;
  color: var(--muted);
}
.seg input:checked + span {
  border-color: rgba(255, 198, 92, 0.7);
  color: var(--text);
  background: rgba(255, 198, 92, 0.08);
}
.no-detail .fields[data-group="detail"] {
  opacity: 0.45;
}

.notes {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
}
.note {
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr);
  gap: 10px;
  font-size: 13px;
  color: var(--text);
}
.note-tag {
  font: 600 10.5px/1.9 var(--mono);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  text-align: center;
  border-radius: 5px;
  align-self: start;
}
.note.warn .note-tag {
  color: var(--warn);
  background: rgba(255, 179, 107, 0.12);
}
.note.info .note-tag {
  color: var(--info);
  background: rgba(156, 196, 255, 0.12);
}
.note.ok .note-tag {
  color: var(--good);
  background: rgba(143, 214, 168, 0.12);
}

.compare-row {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 8px;
  align-items: center;
}
.compare-row label {
  color: var(--muted);
  font-size: 13px;
}
button.ghost,
.exports button,
.file span {
  padding: 7px 12px;
  border-radius: 8px;
  border: 1px solid var(--line-strong);
  background: var(--raise);
  font-size: 12.5px;
  font-weight: 550;
  cursor: pointer;
  white-space: nowrap;
}
button.ghost:hover,
.exports button:hover,
.file:hover span {
  border-color: var(--faint);
}
.exports button.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-ink);
}
.exports button.primary:hover {
  background: #ffd27e;
}
.table-wrap {
  overflow-x: auto;
  margin-top: 12px;
}
table.diff {
  width: 100%;
  border-collapse: collapse;
  font-size: 12.5px;
}
.diff caption {
  text-align: left;
  color: var(--muted);
  font-size: 12px;
  padding-bottom: 6px;
}
.diff th,
.diff td {
  padding: 6px 8px;
  border-top: 1px solid var(--line);
  text-align: left;
  font-variant-numeric: tabular-nums;
}
.diff thead th {
  color: var(--faint);
  font-weight: 550;
  font-size: 11.5px;
  border-top: 0;
}
.diff tbody th {
  font-weight: 500;
  color: var(--muted);
}
.diff td {
  font-family: var(--mono);
  font-size: 12px;
}
.diff td.same {
  font-family: var(--ui);
  color: var(--muted);
}
.sw {
  display: inline-block;
  width: 10px;
  height: 10px;
  border-radius: 3px;
  margin-right: 6px;
  vertical-align: -1px;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.25);
}

.exports {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
  margin-bottom: 14px;
}
.code-tabs {
  margin-bottom: 8px;
}
pre.code {
  margin: 0;
  max-height: 280px;
  overflow: auto;
  padding: 12px 14px;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: #0d0e10;
  font: 400 11.5px/1.55 var(--mono);
  color: #d6d3cb;
  tab-size: 2;
}
.tk {
  color: #9cc4ff;
}
.ts {
  color: #b9e4a8;
}
.tn {
  color: #ffc98a;
}
.tw {
  color: #e8a6ff;
}
.tc {
  color: #8f8c84;
}
.import {
  margin-top: 14px;
}
.import summary {
  cursor: pointer;
  font-size: 13px;
  font-weight: 550;
  color: var(--text);
  padding: 4px 0;
}
.import .hint {
  color: var(--muted);
  font-size: 12.5px;
  margin: 6px 0 10px;
}
.import-row {
  margin-bottom: 8px;
}
.file {
  position: relative;
  display: inline-block;
}
.file input {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
  width: 100%;
}
.file:has(input:focus-visible) span {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
textarea {
  font: 400 12px/1.5 var(--mono);
  resize: vertical;
  margin-bottom: 8px;
}
.import-result {
  margin-top: 10px;
  font-size: 12.5px;
}
.import-result .bad {
  color: var(--warn);
}
.import-result .good {
  color: var(--good);
}
.import-result ul {
  margin: 6px 0 0;
  padding-left: 18px;
  color: var(--muted);
}
.status {
  margin-top: 12px;
  font-size: 12.5px;
  color: var(--good);
  min-height: 1em;
}
.small {
  margin-top: 6px;
  font-size: 12px;
  color: var(--faint);
}

/* capture: nothing animates, nothing focused */
.capture * {
  transition: none !important;
}

/* --- narrow screens ------------------------------------------------------------ */
@media (max-width: 1100px) {
  .lab {
    grid-template-columns: minmax(0, 1fr) 380px;
  }
  .light input {
    width: 96px;
  }
}
@media (max-width: 860px) {
  .app {
    display: block;
    height: auto;
  }
  .bar {
    flex-direction: column;
    align-items: stretch;
    padding: 12px 16px;
    gap: 12px;
  }
  .views {
    display: flex;
  }
  .views .tab {
    flex: 1;
  }
  .views .tab span {
    text-align: center;
    padding: 7px 6px;
  }
  .lab {
    display: block;
  }
  .viewport {
    display: flex;
    flex-direction: column;
  }
  canvas.view {
    height: 46vh;
    min-height: 320px;
  }
  .hud {
    left: 12px;
    right: 12px;
  }
  .hud-top {
    top: 12px;
  }
  .view-caption {
    display: none;
  }
  .readout {
    padding: 7px 11px 7px 8px;
  }
  .hud-bottom {
    position: static;
    padding: 10px 12px 12px;
    background: var(--panel);
    border-top: 1px solid var(--line);
    gap: 8px;
  }
  .envs {
    display: grid;
    grid-template-columns: 1fr 1fr;
    width: 100%;
  }
  .light {
    flex: 1;
  }
  .light input {
    width: auto;
    flex: 1;
    min-width: 0;
  }
  .sample-note {
    position: absolute;
    bottom: auto;
    top: calc(max(46vh, 320px) - 34px);
    right: 12px;
  }
  .panel {
    border-left: 0;
    overflow: visible;
  }
  .block {
    padding: 16px;
  }
}
@media (max-width: 420px) {
  .presets {
    grid-template-columns: 1fr;
  }
  .field,
  .field.color,
  .name-field {
    grid-template-columns: 100px minmax(0, 1fr) 42px;
  }
  .field.color,
  .name-field {
    grid-template-columns: 100px minmax(0, 1fr);
  }
  .compare-row {
    grid-template-columns: auto minmax(0, 1fr);
  }
  .compare-row .pin {
    grid-column: 1 / -1;
  }
  .light {
    flex-basis: 100%;
  }
  .spin {
    flex: 1;
    margin-left: 0;
  }
}