:root {
  color-scheme: dark;
  --bg: #020503;
  --ink: #dfe8df;
  --muted: #8a968b;
  --accent: #a6ff8f;
  --hot: #ff5a4f;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
}

body[data-theme="light"] {
  --bg: #f5f2e9;
  --ink: #1b221b;
  --muted: #6e776d;
  --accent: #006c52;
  --hot: #b6251f;
}

* {
  box-sizing: border-box;
  font-weight: 400;
  letter-spacing: 0;
  min-width: 0;
}

html,
body {
  min-height: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--mono);
  font-size: 13px;
  line-height: 1.28;
}

button,
input,
select,
textarea {
  color: inherit;
  font: inherit;
}

button {
  border: 0;
  background: transparent;
  color: var(--ink);
  cursor: pointer;
  padding: 0;
  text-align: left;
}

button:hover,
button:focus-visible {
  color: var(--accent);
  outline: 0;
}

input[type="text"] {
  width: 100%;
  border: 0;
  background: transparent;
  color: var(--ink);
  outline: 0;
  padding: 0;
}

input[type="text"]:focus {
  color: var(--accent);
}

input[type="text"].is-invalid {
  color: var(--hot);
}

h1,
h2,
h3,
p,
pre {
  margin: 0;
}

h1,
h2,
h3 {
  font-size: 13px;
  line-height: 1.28;
}

.app-shell {
  min-height: 100vh;
  padding: 16px;
}

.ascii-page {
  display: grid;
  gap: 12px;
  align-items: start;
}

.calibration-desk {
  grid-template-columns: max-content minmax(0, 1fr) minmax(28ch, 34ch);
}

.mast {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 460px);
  gap: 14px;
}

.calibration-desk .mast {
  grid-column: 1 / -1;
}

.ascii-title {
  color: var(--accent);
  white-space: pre;
}

.app-kicker,
.ascii-label,
.subtle,
.metric,
.control output {
  color: var(--muted);
}

.subtle {
  max-width: 68ch;
  overflow-wrap: anywhere;
}

.ascii-block {
  min-width: 0;
}

.ascii-heading {
  color: var(--ink);
  white-space: pre;
}

.ascii-rule {
  overflow: hidden;
  color: var(--muted);
  white-space: pre;
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 1ch;
}

.btn,
.ascii-nudge,
.ascii-choice,
.ascii-slider {
  white-space: pre;
}

.btn::before,
.ascii-nudge::before {
  content: "[";
  color: var(--muted);
}

.btn::after,
.ascii-nudge::after {
  content: "]";
  color: var(--muted);
}

.drop-zone.is-dragging,
.drop-zone.is-dragging * {
  color: var(--accent);
}

.controls-panel,
.control-stack {
  display: grid;
  gap: 2px;
}

.controls-panel {
  width: max-content;
  max-width: 100%;
}

.control-group {
  display: grid;
  gap: 2px;
  align-content: start;
}

.ascii-control {
  display: grid;
  gap: 0 1ch;
  align-items: baseline;
}

.range-control {
  grid-template-columns: 13ch max-content auto minmax(6ch, auto);
}

.choice-control {
  grid-template-columns: 13ch auto max-content auto minmax(7ch, auto);
}

.ascii-control.full {
  grid-template-columns: 13ch auto minmax(18ch, 24ch) auto minmax(7ch, auto);
}

.color-control {
  grid-template-columns: 13ch max-content;
}

.color-field {
  display: inline-grid;
  grid-template-columns: 2ch auto 8ch auto;
  gap: 0 0.5ch;
  align-items: center;
}

.color-picker {
  width: 2ch;
  height: 1lh;
  border: 0;
  background: transparent;
  cursor: pointer;
  padding: 0;
}

.color-picker::-webkit-color-swatch-wrapper {
  padding: 0;
}

.color-picker::-webkit-color-swatch {
  border: 1px solid var(--muted);
}

.color-picker::-moz-color-swatch {
  border: 1px solid var(--muted);
}

.color-hex-input {
  width: 8ch;
}

.preset-save {
  grid-template-columns: 13ch auto minmax(14ch, 1fr) auto max-content;
}

.preset-name-input {
  width: 100%;
}

.preset-list {
  display: grid;
  gap: 1px;
  max-width: 100%;
}

.preset-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 0 1ch;
  align-items: baseline;
}

.preset-name {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.preset-tag {
  color: var(--muted);
  white-space: pre;
}

.ascii-stepper {
  display: inline-grid;
  grid-template-columns: auto auto auto;
  gap: 0;
  min-width: 0;
  white-space: pre;
}

.ascii-slider {
  color: var(--ink);
  text-align: left;
  cursor: ew-resize;
  touch-action: none;
  user-select: none;
}

.ascii-choice {
  min-width: 18ch;
  text-align: left;
}

.ascii-slider,
.ascii-choice {
  max-width: 100%;
  overflow: hidden;
}

.ascii-stepper .ascii-nudge,
.ascii-stepper .ascii-slider {
  display: block;
}

.ascii-stepper .ascii-slider {
  min-width: 0;
}

.ascii-text-input {
  min-width: 0;
}

.check-row {
  display: inline-block;
  color: var(--ink);
}

.output-panel {
  min-height: 0;
  min-width: 0;
  max-width: 100%;
}

.output-stage {
  overflow-x: auto;
  overflow-y: visible;
  max-width: 100%;
  min-height: 260px;
  padding: 1lh 0;
}

.ascii-output {
  min-width: max-content;
  color: var(--ink);
  font-family: var(--mono);
  font-size: var(--ascii-font-size, 8px);
  font-variant-ligatures: none;
  letter-spacing: var(--ascii-letter-spacing, 0px);
  line-height: var(--ascii-line-height, 1);
  text-rendering: geometricPrecision;
  white-space: pre;
}

.metrics {
  display: flex;
  flex-wrap: wrap;
  gap: 1ch;
}

.metric::before {
  content: "[";
}

.metric::after {
  content: "]";
}

.state-panel,
.source-panel {
  min-height: 0;
}

.state-dump {
  overflow: auto;
  max-height: 72vh;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 12px;
  line-height: 1.34;
  white-space: pre-wrap;
}

.source-text {
  color: var(--muted);
  white-space: pre-wrap;
}

.mini-map {
  display: grid;
  gap: 2px;
  color: var(--muted);
  white-space: pre;
}

@media (max-width: 1260px) {
  .calibration-desk {
    grid-template-columns: max-content minmax(0, 1fr);
  }

  .mast {
    grid-template-columns: minmax(0, 1fr);
  }

  .output-panel {
    order: 2;
  }

  .controls-panel {
    order: 1;
  }

  .source-panel,
  .state-panel {
    order: 3;
  }

  .calibration-desk .state-panel {
    grid-column: 1 / -1;
  }
}

@media (max-width: 760px) {
  .calibration-desk {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (max-width: 720px) {
  body {
    font-size: 12px;
  }

  .app-shell {
    padding: 10px 10px 5lh;
  }

  .button-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2px 1ch;
  }

  .range-control {
    grid-template-columns: auto max-content auto minmax(5ch, auto);
    gap: 0 1ch;
  }

  .choice-control {
    grid-template-columns: auto auto max-content auto minmax(5ch, auto);
    gap: 0 1ch;
  }

  .ascii-control.full {
    grid-template-columns: auto auto minmax(16ch, 1fr) auto minmax(5ch, auto);
  }

  .preset-save {
    grid-template-columns: auto auto minmax(16ch, 1fr) auto max-content;
  }

  .color-control {
    grid-template-columns: auto max-content;
  }

  .ascii-control > .ascii-label,
  .ascii-control > label {
    grid-column: 1 / -1;
  }

  .range-control > .ascii-label {
    grid-column: 1 / -1;
  }

  .ascii-control > output {
    min-width: 5ch;
  }

  .ascii-stepper {
    grid-template-columns: auto auto auto;
  }

  .ascii-choice {
    min-width: 0;
  }

}