#squiggle-tools {
  --tools-background: #F2EEEA;
  --tools-ink: #1E1E1E;
  --tools-muted: #55514B;
  --tools-line: #D2CBC0;
  --tools-border: #BDB4A6;
  --tools-surface: #EAE4DB;
  --tools-hover: #E0D8CC;
  --tools-well: #E7E2DA;
  --tools-focus: #49636D;
  --tools-shadow: #1E1E1E18;
  --tools-scrollbar: #B1A99D;
  --tools-swatch-border: #1E1E1E30;
  --tools-preset-ink: #3C5155;
  --tools-preset-border: #879A9C;
  --tools-preset-background: #DFE7E7;
  position: fixed;
  z-index: 100;
  top: 88px;
  right: 24px;
  width: 316px;
  max-width: calc(100vw - 32px);
  max-height: calc(100vh - 112px);
  max-height: calc(100dvh - 112px);
  overflow: auto;
  color: var(--tools-ink);
  background: var(--tools-background);
  border: 1px solid var(--tools-border);
  border-radius: var(--folio-card-radius);
  box-shadow: 0 8px 24px var(--tools-shadow);
  font: 12px/1.4 'Inter', sans-serif;
  color-scheme: inherit;
  overscroll-behavior: contain;
  scrollbar-width: thin;
  scrollbar-color: var(--tools-scrollbar) transparent;
}

html[data-theme=dark] #squiggle-tools {
  --tools-background: var(--folio-paper-base);
  --tools-ink: var(--folio-ink-base);
  --tools-muted: var(--folio-muted-base);
  --tools-line: var(--folio-line-base);
  --tools-border: #625C53;
  --tools-surface: var(--folio-thumb-bg);
  --tools-hover: #4A453E;
  --tools-well: var(--folio-frame);
  --tools-focus: #A8C6CB;
  --tools-shadow: #00000030;
  --tools-scrollbar: #7A7164;
  --tools-swatch-border: #E8E1D730;
  --tools-preset-ink: #D1EFF3;
  --tools-preset-border: #64858C;
  --tools-preset-background: #344143;
}

#squiggle-tools,
#squiggle-tools * { box-sizing: border-box; }
#squiggle-tools[hidden],
#squiggle-tools [hidden] { display: none !important; }

#squiggle-tools > summary {
  position: sticky;
  top: 0;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  background: var(--tools-background);
  list-style: none;
  cursor: pointer;
  font-weight: 500;
  user-select: none;
}

#squiggle-tools summary::-webkit-details-marker { display: none; }
#squiggle-tools[open] > summary { border-bottom: 1px solid var(--tools-line); }
#squiggle-tools .squiggle-tools-chevron { color: var(--tools-muted); font-size: 18px; line-height: 1; }
#squiggle-tools[open] .squiggle-tools-chevron { transform: rotate(180deg); }
#squiggle-tools .squiggle-tools-body { padding: 16px 20px; }
#squiggle-tools .squiggle-tools-summary-meta { display: flex; align-items: center; gap: 10px; }
#squiggle-tools kbd { padding: 1px 5px; color: var(--tools-muted); border: 1px solid var(--tools-border); border-radius: 4px; font: 10px/1.5 'IBM Plex Mono', monospace; }

#squiggle-tools button,
#squiggle-tools select {
  font: inherit;
  color: inherit;
  border: 1px solid var(--tools-border);
  border-radius: 6px;
  background: var(--tools-surface);
}

#squiggle-tools button { cursor: pointer; }
#squiggle-tools button:hover { background: var(--tools-hover); }
#squiggle-tools :is(button, select, input, summary):focus-visible {
  outline: 2px solid var(--tools-focus);
  outline-offset: 3px;
}

#squiggle-tools .squiggle-tools-tabs { display: grid; grid-template-columns: 1fr 1fr; gap: 4px; padding: 4px; margin-bottom: 18px; background: var(--tools-well); border: 1px solid var(--tools-line); border-radius: 8px; }
#squiggle-tools .squiggle-tools-tabs button { min-height: 32px; color: var(--tools-muted); background: transparent; border: 0; }
#squiggle-tools .squiggle-tools-tabs button:hover { color: var(--tools-ink); }
#squiggle-tools .squiggle-tools-tabs button[aria-selected="true"] { color: var(--tools-ink); background: var(--tools-hover); }
#squiggle-tools .type-font-picker { padding-bottom: 18px; margin-bottom: 20px; border-bottom: 1px solid var(--tools-line); }
#squiggle-tools .type-font-picker > label { display: block; margin-bottom: 7px; }
#squiggle-tools #type-font { width: 100%; max-width: none; min-height: 42px; padding: 10px; font-size: 14px; }
#squiggle-tools #type-font-status { min-height: 15px; margin: 7px 0 12px; color: var(--tools-muted); font-size: 10px; }
#squiggle-tools .type-font-navigation { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
#squiggle-tools .type-font-navigation button { display: flex; align-items: center; justify-content: space-between; min-height: 32px; padding: 5px 9px; font-size: 11px; }
#squiggle-tools .type-collection-label { margin: 15px 0 7px; color: var(--tools-muted); font-size: 10px; }
#squiggle-tools .type-font-picks { display: grid; grid-template-columns: repeat(2, 1fr); gap: 8px; }
#squiggle-tools .type-font-picks button { min-height: 30px; padding: 5px 6px; font-size: 11px; }
#squiggle-tools .type-font-picks button[aria-pressed="true"] { color: var(--tools-background); background: var(--tools-ink); border-color: var(--tools-ink); }
#squiggle-tools .type-fit-toggle { display: flex; align-items: center; gap: 7px; width: fit-content; margin: 0 0 13px; color: var(--tools-muted); font-size: 11px; cursor: pointer; }
#squiggle-tools .type-fit-toggle input { width: 13px; height: 13px; margin: 0; accent-color: var(--tools-ink); cursor: pointer; }

#squiggle-tools .squiggle-tools-preview {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 4px;
  padding: 4px;
  background: var(--tools-well);
  border: 1px solid var(--tools-line);
  border-radius: 8px;
  margin-bottom: 18px;
}

#squiggle-tools .squiggle-tools-preview button { min-height: 30px; border: 0; background: transparent; color: var(--tools-muted); }
#squiggle-tools .squiggle-tools-preview button:hover { color: var(--tools-ink); }
#squiggle-tools .squiggle-tools-preview button[aria-pressed="true"] { color: var(--tools-background); background: var(--tools-ink); }
#squiggle-tools fieldset { margin: 0 0 18px; padding: 0; border: 0; min-width: 0; }
#squiggle-tools legend { width: 100%; margin-bottom: 12px; padding: 0; color: var(--tools-muted); font-size: 10px; font-weight: 500; letter-spacing: .07em; text-transform: uppercase; }
#squiggle-tools .squiggle-tools-range { display: grid; grid-template-columns: 1fr auto; gap: 4px 10px; margin-bottom: 10px; }
#squiggle-tools .squiggle-tools-range:last-child { margin-bottom: 0; }
#squiggle-tools output { font: 10px/1.7 'IBM Plex Mono', monospace; color: var(--tools-muted); font-variant-numeric: tabular-nums; }
#squiggle-tools input[type="range"] { grid-column: 1 / -1; width: 100%; height: 18px; margin: 0; accent-color: var(--tools-ink); cursor: pointer; }
#squiggle-tools .squiggle-tools-select { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin: 0 0 14px; }
#squiggle-tools select { max-width: 168px; padding: 6px 8px; font-size: 11px; }
#squiggle-tools .squiggle-tools-actions { display: grid; grid-template-columns: 1fr auto; gap: 8px; padding-top: 12px; border-top: 1px solid var(--tools-line); }
#squiggle-tools .squiggle-tools-actions button { min-height: 32px; padding: 5px 12px; }
#squiggle-tools #signal-replay { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
#squiggle-tools #signal-reset { color: var(--tools-muted); background: transparent; }
#squiggle-tools #signal-pulse { width: 100%; min-height: 32px; padding: 5px 12px; }
#squiggle-tools #signal-pulse + .squiggle-tools-note { margin: 0 0 10px; }
#squiggle-tools .type-tools-actions { grid-template-columns: 1fr; }
#squiggle-tools #type-reset { color: var(--tools-muted); background: transparent; }
#squiggle-tools .squiggle-tools-note { color: var(--tools-muted); font-size: 10px; margin: 10px 0 0; }

#squiggle-tools #signal-panel .squiggle-tools-preview { margin-bottom: 9px; }
#squiggle-tools .signal-intro { margin: 0 0 12px; color: var(--tools-muted); font-size: 11px; }
#squiggle-tools .signal-style-picker { margin-top: 15px; }
#squiggle-tools #spectrum-palette-preview { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 5px; margin: -3px 0 13px; }
#squiggle-tools [data-spectrum-swatch] { display: block; height: 16px; border: 1px solid var(--tools-swatch-border); border-radius: 4px; }
#squiggle-tools #spectrum-palette-description { grid-column: 1 / -1; margin: 0; color: var(--tools-muted); font-size: 10px; line-height: 1.4; }
#squiggle-tools .signal-presets { display: grid; grid-template-columns: repeat(3, 1fr); gap: 6px; margin-bottom: 20px; }
#squiggle-tools .signal-presets button { min-height: 28px; padding: 4px 5px; font-size: 11px; }
#squiggle-tools .signal-presets button[aria-pressed="true"] { color: var(--tools-preset-ink); border-color: var(--tools-preset-border); background: var(--tools-preset-background); }
#squiggle-tools .signal-group { margin: 0 0 16px; border-top: 1px solid var(--tools-line); }
#squiggle-tools .signal-group > summary { display: flex; align-items: center; justify-content: space-between; padding: 12px 0; color: var(--tools-muted); list-style: none; cursor: pointer; user-select: none; font-size: 10px; font-weight: 500; letter-spacing: .07em; text-transform: uppercase; }
#squiggle-tools .signal-group > summary span[aria-hidden] { color: var(--tools-muted); font-size: 15px; line-height: 1; }
#squiggle-tools .signal-group[open] > summary span[aria-hidden] { transform: rotate(180deg); }
#squiggle-tools .signal-group:not([open]) { margin-bottom: 0; }
#squiggle-tools .signal-group .squiggle-tools-select:last-child { margin-bottom: 0; }

@media (max-width: 570px) {
  #squiggle-tools { top: auto; right: 16px; bottom: 16px; max-height: 55vh; max-height: 55dvh; }
}