:root {
  color-scheme: dark;
  --bg: #05070d;
  --panel: rgba(13, 18, 30, 0.86);
  --panel-border: rgba(255, 255, 255, 0.12);
  --text: #f4f6fb;
  --muted: #aab3c5;
  --accent: #2dd4bf;
  --hot: #f59e0b;
}

* {
  box-sizing: border-box;
}

html,
body {
  width: 100%;
  height: 100%;
  margin: 0;
  overflow: hidden;
  background: var(--bg);
  color: var(--text);
  font-family:
    Inter,
    ui-sans-serif,
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;
}

canvas {
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100vh;
  background: #02040a;
  cursor: crosshair;
}

.toolbar {
  position: fixed;
  top: 16px;
  left: 16px;
  display: grid;
  gap: 9px;
  width: min(294px, calc(100vw - 32px));
  padding: 10px;
  border: 1px solid var(--panel-border);
  border-radius: 8px;
  background: var(--panel);
  backdrop-filter: blur(16px);
  box-shadow: 0 18px 60px rgba(0, 0, 0, 0.38);
}

.brand {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
}

h1 {
  margin: 0;
  font-size: 18px;
  font-weight: 760;
  letter-spacing: 0;
}

.readout {
  margin-left: auto;
  color: var(--muted);
  font-size: 12px;
  white-space: nowrap;
}

button,
select {
  min-height: 36px;
  border: 1px solid rgba(255, 255, 255, 0.13);
  border-radius: 7px;
  background: rgba(255, 255, 255, 0.08);
  color: var(--text);
  font: inherit;
  font-size: 13px;
}

button:disabled {
  cursor: progress;
  opacity: 0.72;
}

option {
  background: #101827;
  color: var(--text);
}

button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  cursor: pointer;
}

button:hover,
select:hover {
  border-color: rgba(255, 255, 255, 0.28);
}

button:focus-visible,
select:focus-visible,
input:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

button.primary {
  background: color-mix(in srgb, var(--accent) 32%, rgba(255, 255, 255, 0.08));
}

button.hot {
  background: color-mix(in srgb, var(--hot) 30%, rgba(255, 255, 255, 0.08));
}

.icon-button {
  width: 30px;
  min-height: 30px;
  padding: 0;
  font-size: 18px;
  line-height: 1;
}

.quick-actions,
.zoom-actions,
.controls {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
}

.controls {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.toolbar.collapsed {
  width: min(230px, calc(100vw - 32px));
}

.toolbar.collapsed .controls,
.toolbar.collapsed .quick-actions,
.toolbar.collapsed .zoom-actions {
  display: none;
}

.toolbar.collapsed .readout {
  display: none;
}

.toolbar.collapsed .icon-button {
  margin-left: auto;
}

label {
  display: grid;
  grid-template-columns: 1fr auto auto;
  align-items: center;
  gap: 5px 6px;
  color: var(--muted);
  font-size: 12px;
}

label > select,
label > input,
label > .wide-row {
  grid-column: 1 / -1;
}

.value {
  color: var(--text);
  font-variant-numeric: tabular-nums;
  text-align: right;
}

.reset-slider {
  min-height: 20px;
  width: 22px;
  padding: 0;
  font-size: 14px;
  line-height: 1;
  border-radius: 4px;
  color: var(--muted);
}

.reset-slider:hover {
  color: var(--text);
}

input[type="range"] {
  width: 100%;
  accent-color: var(--accent);
}

.wide {
  grid-column: 1 / -1;
}

.meter {
  position: fixed;
  right: 16px;
  bottom: 16px;
  max-width: min(460px, calc(100vw - 32px));
  padding: 10px 12px;
  border: 1px solid var(--panel-border);
  border-radius: 8px;
  background: rgba(8, 12, 20, 0.74);
  color: var(--muted);
  font-size: 12px;
  backdrop-filter: blur(12px);
}

.selection {
  position: fixed;
  display: none;
  border: 1px solid rgba(45, 212, 191, 0.95);
  background: rgba(45, 212, 191, 0.12);
  box-shadow:
    0 0 0 1px rgba(2, 6, 23, 0.72),
    0 0 30px rgba(45, 212, 191, 0.24);
  pointer-events: none;
}

@media (max-width: 620px) {
  .toolbar {
    top: 10px;
    left: 10px;
    width: calc(100vw - 20px);
    max-height: min(46vh, 310px);
    overflow: auto;
  }

  .brand {
    position: sticky;
    top: 0;
    z-index: 1;
    padding-bottom: 2px;
    background: rgba(13, 18, 30, 0.92);
  }

  .quick-actions,
  .zoom-actions {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .controls {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .wide {
    grid-column: span 3;
  }

  button,
  select {
    min-width: 0;
    min-height: 32px;
    font-size: 12px;
  }

  label {
    grid-column: span 1;
    gap: 3px;
  }

  .meter {
    left: 10px;
    right: 10px;
    bottom: 10px;
  }

  .toolbar.collapsed {
    width: min(176px, calc(100vw - 20px));
    max-height: none;
    overflow: visible;
  }
}