:root {
  --bg: #f7f6f3;
  --panel: #ffffff;
  --fg: #1d1d1f;
  --dim: #5f6368;
  --line: #e2e0da;
  --accent: #e8590c;
  --accent-fg: #ffffff;
  --code: #efede7;
  --bad: #c92a2a;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #141416;
    --panel: #1d1d20;
    --fg: #ececec;
    --dim: #a0a0a8;
    --line: #2e2e33;
    --accent: #ff8a3d;
    --accent-fg: #141416;
    --code: #2a2a2f;
    --bad: #ff6b6b;
    color-scheme: dark;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font:
    16px/1.55 system-ui,
    -apple-system,
    'Segoe UI',
    sans-serif;
}

.wrap {
  max-width: 760px;
  margin: 0 auto;
  padding: 0 16px;
}

a {
  color: var(--accent);
}

header {
  padding: 40px 0 24px;
}

h1 {
  margin: 0;
  font-size: 2.2rem;
  letter-spacing: -0.02em;
}

.lede {
  margin: 8px 0 0;
  font-size: 1.1rem;
  color: var(--dim);
}

.release {
  display: inline-block;
  margin: 16px 0 0;
  padding: 4px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 0.9rem;
  color: var(--dim);
}

.video {
  margin: 20px 0 0;
  aspect-ratio: 16 / 9;
}

.video iframe {
  width: 100%;
  height: 100%;
  border: 0;
  border-radius: 8px;
}

.panel,
.notes {
  margin: 20px 0;
  padding: 4px 24px 16px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--panel);
}

.what {
  margin-top: 20px;
}

h2 {
  margin: 24px 0 8px;
  font-size: 1.1rem;
}

.steps {
  padding-left: 0;
  list-style: none;
  counter-reset: step;
}

.steps > li {
  position: relative;
  margin: 0 0 16px;
  padding-left: 40px;
  counter-increment: step;
}

.steps > li::before {
  content: counter(step);
  position: absolute;
  left: 0;
  top: 0;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--accent);
  color: var(--accent-fg);
  font-weight: 700;
  font-size: 0.9rem;
  line-height: 28px;
  text-align: center;
}

.actions {
  margin: 10px 0 4px;
}

.button {
  display: inline-block;
  padding: 10px 18px;
  border: 0;
  border-radius: 8px;
  background: var(--accent);
  color: var(--accent-fg);
  font: inherit;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
}

.button.secondary {
  background: none;
  color: var(--accent);
  box-shadow: inset 0 0 0 2px var(--accent);
}

.button[aria-disabled='true'],
.button:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.note {
  color: var(--dim);
  font-size: 0.9rem;
}

.note.bad {
  color: var(--bad);
}

pre {
  overflow-x: auto;
  padding: 12px;
  border-radius: 8px;
  background: var(--code);
}

pre code {
  padding: 0;
}

code {
  padding: 1px 5px;
  border-radius: 4px;
  background: var(--code);
  font-size: 0.9em;
}

table {
  margin: 8px 0;
  border-collapse: collapse;
}

th,
td {
  padding: 4px 16px 4px 0;
  border-bottom: 1px solid var(--line);
  text-align: left;
}

.case {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: flex-start;
}

.case-view {
  position: sticky;
  top: 8px;
  flex: 1 1 300px;
  max-width: 420px;
}

.case-view img,
.case-view canvas {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1;
  object-fit: contain;
  touch-action: none;
  cursor: grab;
}

.case-view img[hidden],
.case-view canvas[hidden] {
  display: none;
}

.case > div:not(.case-view) {
  flex: 1 1 280px;
}

.case .actions .button {
  margin: 0 6px 6px 0;
}

footer {
  padding: 8px 16px 40px;
  color: var(--dim);
  font-size: 0.9rem;
}

/* tabs */
.tabs {
  display: flex;
  gap: 4px;
  border-bottom: 1px solid var(--line);
}

.tabs a {
  padding: 8px 14px;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  color: var(--dim);
  font-weight: 600;
  text-decoration: none;
}

.tabs a.on {
  border-color: var(--accent);
  color: var(--fg);
}

body[data-tab='map'] .video {
  display: none;
}

/* the MIDI map */
#map input,
#map select,
#map textarea {
  min-width: 0;
  padding: 5px 7px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--bg);
  color: var(--fg);
  font: inherit;
  font-size: 0.9rem;
}

#map button:not(.button) {
  padding: 4px 9px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--panel);
  color: var(--fg);
  font: inherit;
  font-size: 0.85rem;
  cursor: pointer;
}

#map button:not(.button):hover {
  border-color: var(--accent);
}

#map .bad {
  color: var(--bad);
}

#learn-new.on,
.rule.learning [data-do='learn'] {
  animation: listen 1s ease-in-out infinite alternate;
}

@keyframes listen {
  to {
    opacity: 0.5;
  }
}

.devices {
  margin: 8px 0;
  padding: 0;
  list-style: none;
}

.devices li {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 10px;
  align-items: center;
  padding: 8px 0;
  border-bottom: 1px solid var(--line);
}

.devices li.gone .full,
.devices li.gone .short {
  opacity: 0.6;
}

.light {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--line);
  transition: background 0.15s;
}

.light.on {
  background: var(--accent);
  transition: none;
}

.devices .short {
  width: 9em;
  font-family: ui-monospace, monospace;
}

.devices .full {
  flex: 1 1 160px;
  color: var(--dim);
  font-size: 0.85rem;
}

.devices .tools,
.rule .tools {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
}

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  width: 100%;
  padding-left: 20px;
}

.chips small {
  color: var(--dim);
}

.dev-add {
  display: flex;
  gap: 8px;
  margin: 8px 0;
}

.dev-add input {
  flex: 1;
}

.rule {
  margin: 8px 0;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.rule.learning {
  border-color: var(--accent);
}

.rule-top {
  display: flex;
  gap: 8px;
  align-items: flex-start;
}

.rule .comment {
  flex: 1;
  border-color: transparent !important;
  background: none !important;
  color: var(--dim) !important;
  font-style: italic;
  resize: vertical;
}

.rule .comment:focus {
  border-color: var(--line) !important;
}

.note-item {
  border-style: dashed;
}

.side {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 10px;
  align-items: flex-end;
  margin-top: 6px;
}

.arrow {
  padding-bottom: 6px;
  color: var(--accent);
}

.f {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.f > span {
  color: var(--dim);
  font-size: 0.75rem;
}

.f.range,
.f.vel {
  flex-direction: row;
  flex-wrap: wrap;
  align-items: center;
  gap: 2px 4px;
}

.f.range > span,
.f.vel > span {
  width: 100%;
}

.f em {
  color: var(--dim);
  font-style: normal;
}

.f.name input {
  width: 10em;
}

.f .n {
  width: 4.5em;
}

.said {
  margin: 8px 0 0;
  color: var(--dim);
  font-size: 0.85rem;
}

.map-text {
  max-height: 420px;
  font-size: 0.85rem;
}

/* the battery case maker */
.maker-presets {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 10px 0;
}

.maker-presets button {
  padding: 6px 10px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--bg);
  color: var(--fg);
  font: inherit;
  font-size: 0.85rem;
  cursor: pointer;
}

.maker-presets button.on {
  border-color: var(--accent);
  background: var(--accent);
  color: var(--accent-fg);
}

.maker-size {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 8px;
  align-items: flex-end;
  margin: 8px 0;
}

.maker-size label {
  display: flex;
  flex-direction: column;
  color: var(--dim);
  font-size: 0.8rem;
}

.maker-size input {
  width: 5.5em;
  padding: 5px 7px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--bg);
  color: var(--fg);
  font: inherit;
}

.maker-size input:disabled,
.maker-switch:has(input:disabled) {
  opacity: 0.4;
}

.maker-switch {
  display: block;
  margin: 6px 0;
  font-size: 0.9rem;
}

@media (max-width: 640px) {
  .case-view {
    position: static;
  }
}