[data-fui-comp="ui-segmented"] {
  position: relative;
  display: inline-grid;
  grid-auto-flow: column;
  grid-auto-columns: 1fr;
  padding: 4px;
  gap: 0;
  border-radius: var(--radii-md, 8px);
  background: var(--color-muted, #f1f1f3);
  border: 1px solid var(--color-border, #e5e7eb);
  font-size: 0.9rem;
  vertical-align: middle;
  isolation: isolate;
}
[data-fui-comp="ui-segmented"][data-count="2"] { min-inline-size: 16rem; }
[data-fui-comp="ui-segmented"][data-count="3"] { min-inline-size: 22rem; }
[data-fui-comp="ui-segmented"][data-count="4"] { min-inline-size: 26rem; }
[data-fui-comp="ui-segmented"][data-count="5"] { min-inline-size: 30rem; }
[data-fui-comp="ui-segmented"][data-count="6"] { min-inline-size: 34rem; }

[data-fui-comp="ui-segmented"] .ui-segmented__option {
  position: relative;
  z-index: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: var(--spacing-touch-target, 40px);
  padding: 0 var(--spacing-md, 12px);
  border-radius: calc(var(--radii-md, 8px) - 4px);
  cursor: pointer;
  color: var(--color-text-muted, #6b7280);
  transition: color var(--duration-fast, 150ms) var(--easing-standard, ease);
  user-select: none;
  text-align: center;
  white-space: nowrap;
  margin: 0;
}
[data-fui-comp="ui-segmented"] .ui-segmented__option:hover {
  color: var(--color-text, #111);
}
[data-fui-comp="ui-segmented"] .ui-segmented__input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
  inline-size: 0;
  block-size: 0;
  margin: 0;
}
[data-fui-comp="ui-segmented"] .ui-segmented__option:has(.ui-segmented__input:checked) {
  color: var(--color-text, #111);
  font-weight: 600;
}
[data-fui-comp="ui-segmented"] .ui-segmented__option:has(.ui-segmented__input:focus-visible) {
  outline: 2px solid var(--color-primary, #4F46E5);
  outline-offset: 2px;
}
[data-fui-comp="ui-segmented"] .ui-segmented__option:has(.ui-segmented__input:disabled) {
  cursor: not-allowed;
  opacity: 0.45;
}

/* Sliding pill indicator. Sized to one column width via the data-count
   attribute on the wrapper; translated by (position × 100%) which is
   exact because every column is exactly 1fr wide. */
[data-fui-comp="ui-segmented"] .ui-segmented__indicator {
  position: absolute;
  z-index: 0;
  top: 4px;
  bottom: 4px;
  left: 4px;
  inline-size: calc((100% - 8px) / 2);
  border-radius: calc(var(--radii-md, 8px) - 4px);
  background: var(--color-surface, #fff);
  box-shadow: 0 1px 2px rgba(0,0,0,0.08),
              0 0 0 1px rgba(0,0,0,0.05);
  transition: transform var(--duration-medium, 200ms) var(--easing-standard, cubic-bezier(0.4, 0, 0.2, 1));
  pointer-events: none;
}
[data-fui-comp="ui-segmented"][data-count="2"] .ui-segmented__indicator { inline-size: calc((100% - 8px) / 2); }
[data-fui-comp="ui-segmented"][data-count="3"] .ui-segmented__indicator { inline-size: calc((100% - 8px) / 3); }
[data-fui-comp="ui-segmented"][data-count="4"] .ui-segmented__indicator { inline-size: calc((100% - 8px) / 4); }
[data-fui-comp="ui-segmented"][data-count="5"] .ui-segmented__indicator { inline-size: calc((100% - 8px) / 5); }
[data-fui-comp="ui-segmented"][data-count="6"] .ui-segmented__indicator { inline-size: calc((100% - 8px) / 6); }

[data-fui-comp="ui-segmented"]:has(.ui-segmented__option[data-position="0"] .ui-segmented__input:checked) .ui-segmented__indicator { transform: translateX(0); }
[data-fui-comp="ui-segmented"]:has(.ui-segmented__option[data-position="1"] .ui-segmented__input:checked) .ui-segmented__indicator { transform: translateX(100%); }
[data-fui-comp="ui-segmented"]:has(.ui-segmented__option[data-position="2"] .ui-segmented__input:checked) .ui-segmented__indicator { transform: translateX(200%); }
[data-fui-comp="ui-segmented"]:has(.ui-segmented__option[data-position="3"] .ui-segmented__input:checked) .ui-segmented__indicator { transform: translateX(300%); }
[data-fui-comp="ui-segmented"]:has(.ui-segmented__option[data-position="4"] .ui-segmented__input:checked) .ui-segmented__indicator { transform: translateX(400%); }
[data-fui-comp="ui-segmented"]:has(.ui-segmented__option[data-position="5"] .ui-segmented__input:checked) .ui-segmented__indicator { transform: translateX(500%); }

@media (prefers-reduced-motion: reduce) {
  [data-fui-comp="ui-segmented"] .ui-segmented__indicator { transition: none; }
}