/* ──────────────────────────────────────────────
   Color picker — DevTools-inspired, design-system
   - Trigger: rounded-square swatch anywhere in the UI
   - Popover: SV square + hue slider + RGB inputs
   ────────────────────────────────────────────── */

/* ── Trigger (the "pastille" shown in forms) ───── */

.color-picker-trigger {
  --swatch: #ffffff;
  background: var(--swatch);
  background-clip: padding-box;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  cursor: pointer;
  display: inline-block;
  flex-shrink: 0;
  height: var(--control-h-md);
  padding: 0;
  transition: border-color var(--transition-fast), transform var(--transition-fast);
  width: var(--control-h-md);
}

.color-picker-trigger:hover {
  border-color: var(--border-strong);
}

.color-picker-trigger:focus-visible {
  outline: var(--focus-outline);
  outline-offset: var(--focus-offset);
}

/* ── Popover shell ─────────────────────────────── */

.color-picker {
  background: var(--bg-panel);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  display: flex;
  flex-direction: column;
  font-family: var(--font-sans);
  gap: var(--space-md);
  opacity: 0;
  padding: var(--space-md);
  pointer-events: auto;
  transform: translateY(-4px);
  transition: opacity var(--transition-base), transform var(--transition-base);
  width: 18rem;
  z-index: var(--z-popover);
}

.color-picker--open {
  opacity: 1;
  transform: translateY(0);
}

/* ── Saturation / Value square ─────────────────── */

.color-picker__sv {
  --hue: #ff0000;
  aspect-ratio: 16 / 10;
  background: var(--hue);
  border-radius: var(--radius-sm);
  cursor: crosshair;
  overflow: hidden;
  position: relative;
  touch-action: none;
  width: 100%;
}

.color-picker__sv-sat {
  background: linear-gradient(to right, #fff, transparent);
  inset: 0;
  position: absolute;
}

.color-picker__sv-val {
  background: linear-gradient(to top, #000, transparent);
  inset: 0;
  position: absolute;
}

.color-picker__sv-thumb {
  --thumb-color: #fff;
  background: var(--thumb-color);
  border: 2px solid #fff;
  border-radius: 50%;
  height: var(--icon-sm);
  left: 0;
  pointer-events: none;
  position: absolute;
  top: 0;
  transform: translate(-50%, -50%);
  width: var(--icon-sm);
}

/* ── Mid row: eyedropper + swatch + hue slider ─── */

.color-picker__mid {
  align-items: center;
  display: flex;
  gap: var(--space-sm);
}

.color-picker__eyedropper {
  align-items: center;
  background: transparent;
  border: 0;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  cursor: pointer;
  display: inline-flex;
  flex-shrink: 0;
  height: 1.75rem;
  justify-content: center;
  padding: 0;
  transition: background-color var(--transition-fast), color var(--transition-fast);
  width: 1.75rem;
}

.color-picker__eyedropper:hover:not(:disabled) {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.color-picker__eyedropper:disabled {
  cursor: not-allowed;
  opacity: 0.4;
}

.color-picker__swatch {
  --swatch: #fff;
  background: var(--swatch);
  border: 1px solid var(--border-subtle);
  border-radius: 50%;
  flex-shrink: 0;
  height: 1.5rem;
  width: 1.5rem;
}

.color-picker__hue {
  background: linear-gradient(
    to right,
    #f00 0%, #ff0 17%, #0f0 33%, #0ff 50%,
    #00f 67%, #f0f 83%, #f00 100%
  );
  border-radius: var(--radius-pill);
  cursor: pointer;
  flex: 1;
  height: 0.75rem;
  position: relative;
  touch-action: none;
}

.color-picker__hue-thumb {
  background: #fff;
  border: 2px solid var(--neutral-900);
  border-radius: 50%;
  height: 0.75rem;
  left: 0;
  pointer-events: none;
  position: absolute;
  top: 50%;
  transform: translate(-50%, -50%);
  width: 0.75rem;
}

/* ── Numeric inputs row ────────────────────────── */

.color-picker__inputs {
  align-items: flex-start;
  display: grid;
  gap: var(--space-xs);
  grid-template-columns: 1fr 1fr 1fr auto;
}

.color-picker__input {
  display: flex;
  flex-direction: column;
  gap: var(--space-3xs);
  text-align: center;
}

.color-picker__input input {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  font-variant-numeric: tabular-nums;
  padding: var(--space-2xs) var(--space-xs);
  text-align: center;
  width: 100%;
}

.color-picker__input input:focus {
  border-color: var(--vibrance-hover);
  outline: none;
}

.color-picker__input span {
  color: var(--text-muted);
  font-size: var(--text-2xs);
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.color-picker__mode-toggle {
  align-items: center;
  align-self: stretch;
  background: transparent;
  border: 0;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  cursor: pointer;
  display: inline-flex;
  justify-content: center;
  margin-top: 0;
  padding: 0 var(--space-2xs);
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.color-picker__mode-toggle:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}