/* Toggle (Switch) Component */


/* Component-specific custom properties */
.c-toggle {
  /* Base properties */
  --c-toggle-font-family: var(--ds-font-family-sans);
  --c-toggle-font-weight: var(--ds-font-weight-normal);
  --c-toggle-line-height: var(--ds-line-height-s);
  --c-toggle-transition: all var(--ds-duration-fast) var(--ds-ease-out);
  
  /* Size-specific properties (default to medium) */
  --c-toggle-track-width: 2.75rem; /* 44px */
  --c-toggle-track-height: 1.5rem; /* 24px */
  --c-toggle-thumb-size: 1.25rem; /* 20px */
  --c-toggle-font-size: var(--ds-font-size-m);
  --c-toggle-gap: var(--ds-space-s);
  --c-toggle-border-radius: var(--ds-radius-pill);
  --c-toggle-border-width: 1px;
  
  /* Colors */
  --c-toggle-track-background: var(--ds-color-border);
  --c-toggle-track-background-checked: var(--ds-color-accent);
  --c-toggle-track-border-color: var(--ds-color-border);
  --c-toggle-track-border-color-checked: var(--ds-color-accent);
  --c-toggle-thumb-background: var(--ds-color-surface);
  --c-toggle-thumb-shadow: var(--ds-shadow-s);
  --c-toggle-text-color: var(--ds-color-text);
  
  /* Hover state */
  --c-toggle-track-background-hover: var(--ds-color-border-hover);
  --c-toggle-track-background-checked-hover: color-mix(in srgb, var(--ds-color-accent) 90%, black);
  --c-toggle-thumb-shadow-hover: var(--ds-shadow-m);
  
  /* Focus state */
  --c-toggle-track-border-color-focus: var(--ds-color-accent);
  --c-toggle-focus-ring: 0 0 0 2px var(--ds-color-accent-weak);
  
  /* Disabled state */
  --c-toggle-track-background-disabled: var(--ds-color-surface-lowered);
  --c-toggle-track-border-color-disabled: var(--ds-color-border);
  --c-toggle-thumb-background-disabled: var(--ds-color-surface-lowered);
  --c-toggle-text-color-disabled: var(--ds-color-text-weakest);
  --c-toggle-thumb-shadow-disabled: none;
  
  /* Invalid state */
  --c-toggle-track-border-color-invalid: var(--ds-color-status-danger);
  --c-toggle-focus-ring-invalid: 0 0 0 2px var(--ds-color-status-danger-weak);
  
  /* Helper text */
  --c-toggle-hint-color: var(--ds-color-text-weak);
  --c-toggle-hint-font-size: var(--ds-font-size-s);
  --c-toggle-error-color: var(--ds-color-text-danger);
  --c-toggle-error-font-size: var(--ds-font-size-s);
}

/* Base toggle container */
.c-toggle {
  display: flex;
  flex-direction: column;
  gap: var(--ds-space-xs);
  font-family: var(--c-toggle-font-family);
}

/* Toggle control container */
.c-toggle__control-container {
  display: flex;
  align-items: center;
  gap: var(--c-toggle-gap);
  cursor: pointer;
  position: relative;
}

/* Hidden native checkbox */
.c-toggle__control {
  /* Hide native checkbox but keep it accessible */
  position: absolute;
  opacity: 0;
  width: var(--c-toggle-track-width);
  height: var(--c-toggle-track-height);
  margin: 0;
  cursor: pointer;
  z-index: 1;
}

/* Toggle track (background) */
.c-toggle__track {
  position: relative;
  display: flex;
  align-items: center;
  width: var(--c-toggle-track-width);
  height: var(--c-toggle-track-height);
  min-width: var(--c-toggle-track-width);
  min-height: var(--c-toggle-track-height);
  
  background-color: var(--c-toggle-track-background);
  border: var(--c-toggle-border-width) solid var(--c-toggle-track-border-color);
  border-radius: var(--c-toggle-border-radius);
  
  transition: var(--c-toggle-transition);
}

/* Toggle thumb (slider) */
.c-toggle__thumb {
  position: absolute;
  top: 50%;
  left: 2px;
  transform: translateY(-50%);
  
  width: var(--c-toggle-thumb-size);
  height: var(--c-toggle-thumb-size);
  
  background-color: var(--c-toggle-thumb-background);
  border-radius: 50%;
  box-shadow: var(--c-toggle-thumb-shadow);
  
  transition: var(--c-toggle-transition);
}

/* Toggle label */
.c-toggle__label {
  flex: 1;
  font-size: var(--c-toggle-font-size);
  font-weight: var(--c-toggle-font-weight);
  line-height: var(--c-toggle-line-height);
  color: var(--c-toggle-text-color);
  cursor: pointer;
  user-select: none;
}

.c-toggle__label-text {
  display: block;
}

.c-toggle__required {
  color: var(--ds-color-status-danger);
  font-weight: var(--ds-font-weight-normal);
  margin-left: var(--ds-space-xs);
}

/* Hint text */
.c-toggle__hint {
  font-size: var(--c-toggle-hint-font-size);
  color: var(--c-toggle-hint-color);
  line-height: var(--c-toggle-line-height);
  margin-left: calc(var(--c-toggle-track-width) + var(--c-toggle-gap));
}

/* Error text */
.c-toggle__error {
  font-size: var(--c-toggle-error-font-size);
  color: var(--c-toggle-error-color);
  line-height: var(--c-toggle-line-height);
  font-weight: var(--ds-font-weight-medium);
  margin-left: calc(var(--c-toggle-track-width) + var(--c-toggle-gap));
}

/* ========================================
   TOGGLE STATES
   ======================================== */

/* Hover state */
.c-toggle__control-container:hover:not(.c-toggle__control-container--disabled) .c-toggle__track {
  background-color: var(--c-toggle-track-background-hover);
  box-shadow: var(--c-toggle-thumb-shadow-hover);
}

.c-toggle__control-container:hover:not(.c-toggle__control-container--disabled) .c-toggle__thumb {
  box-shadow: var(--c-toggle-thumb-shadow-hover);
}

/* Focus state */
.c-toggle__control:focus-visible + .c-toggle__track {
  border-color: var(--c-toggle-track-border-color-focus);
  box-shadow: var(--c-toggle-focus-ring);
}

/* Checked state */
.c-toggle__control:checked + .c-toggle__track {
  background-color: var(--c-toggle-track-background-checked);
  border-color: var(--c-toggle-track-border-color-checked);
}

.c-toggle__control:checked + .c-toggle__track .c-toggle__thumb {
  left: calc(100% - var(--c-toggle-thumb-size) - 2px);
}

.c-toggle__control:checked + .c-toggle__track:hover {
  background-color: var(--c-toggle-track-background-checked-hover);
}

/* Disabled state */
.c-toggle--disabled .c-toggle__control-container,
.c-toggle__control-container--disabled {
  cursor: not-allowed;
  pointer-events: none;
}

.c-toggle--disabled .c-toggle__track,
.c-toggle__control:disabled + .c-toggle__track {
  background-color: var(--c-toggle-track-background-disabled);
  border-color: var(--c-toggle-track-border-color-disabled);
}

.c-toggle--disabled .c-toggle__thumb,
.c-toggle__control:disabled + .c-toggle__track .c-toggle__thumb {
  background-color: var(--c-toggle-thumb-background-disabled);
  box-shadow: var(--c-toggle-thumb-shadow-disabled);
}

.c-toggle--disabled .c-toggle__label,
.c-toggle__control:disabled ~ .c-toggle__label {
  color: var(--c-toggle-text-color-disabled);
  cursor: not-allowed;
}

/* Invalid state */
.c-toggle--invalid .c-toggle__track {
  border-color: var(--c-toggle-track-border-color-invalid);
}

.c-toggle--invalid .c-toggle__control:focus-visible + .c-toggle__track {
  box-shadow: var(--c-toggle-focus-ring-invalid);
}

/* ========================================
   TOGGLE SIZES
   ======================================== */

/* Small size */
.c-toggle--size-s {
  --c-toggle-track-width: 2.25rem; /* 36px */
  --c-toggle-track-height: 1.25rem; /* 20px */
  --c-toggle-thumb-size: 1rem; /* 16px */
  --c-toggle-font-size: var(--ds-font-size-s);
  --c-toggle-gap: var(--ds-space-xs);
}

/* Medium size (default) */
.c-toggle--size-m {
  --c-toggle-track-width: 2.75rem; /* 44px */
  --c-toggle-track-height: 1.5rem; /* 24px */
  --c-toggle-thumb-size: 1.25rem; /* 20px */
  --c-toggle-font-size: var(--ds-font-size-m);
  --c-toggle-gap: var(--ds-space-s);
}

/* Large size */
.c-toggle--size-l {
  --c-toggle-track-width: 3.25rem; /* 52px */
  --c-toggle-track-height: 1.75rem; /* 28px */
  --c-toggle-thumb-size: 1.5rem; /* 24px */
  --c-toggle-font-size: var(--ds-font-size-l);
  --c-toggle-gap: var(--ds-space-s);
}

/* ========================================
   TOGGLE MODIFIERS
   ======================================== */

/* Hide label */
.c-toggle--hide-label .c-toggle__label {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.c-toggle--hide-label .c-toggle__hint,
.c-toggle--hide-label .c-toggle__error {
  margin-left: 0;
}

/* Hide required indicator */
.c-toggle--hide-required .c-toggle__required {
  display: none;
}

/* Reverse layout (label first, then toggle) */
.c-toggle--reverse .c-toggle__control-container {
  flex-direction: row-reverse;
}

.c-toggle--reverse .c-toggle__hint,
.c-toggle--reverse .c-toggle__error {
  margin-left: 0;
  margin-right: calc(var(--c-toggle-track-width) + var(--c-toggle-gap));
}

/* Inline layout */
.c-toggle--inline {
  flex-direction: row;
  align-items: center;
  gap: var(--c-toggle-gap);
}

.c-toggle--inline .c-toggle__hint,
.c-toggle--inline .c-toggle__error {
  margin-left: 0;
}

/* ========================================
   RESPONSIVE BEHAVIOR
   ======================================== */

/* Mobile adjustments */
@media (max-width: 480px) {
  .c-toggle {
    --c-toggle-track-width: 3rem; /* 48px - larger touch target */
    --c-toggle-track-height: 1.75rem; /* 28px */
    --c-toggle-thumb-size: 1.5rem; /* 24px */
    --c-toggle-gap: var(--ds-space-s);
  }
  
  .c-toggle--size-s {
    --c-toggle-track-width: 2.5rem; /* 40px */
    --c-toggle-track-height: 1.5rem; /* 24px */
    --c-toggle-thumb-size: 1.25rem; /* 20px */
  }
  
  .c-toggle--size-l {
    --c-toggle-track-width: 3.5rem; /* 56px */
    --c-toggle-track-height: 2rem; /* 32px */
    --c-toggle-thumb-size: 1.75rem; /* 28px */
  }
}

/* ========================================
   ACCESSIBILITY & INTERACTION STATES
   ======================================== */

/* High contrast mode support */
@media (prefers-contrast: high) {
  .c-toggle__track {
    border-width: 2px;
  }
  
  .c-toggle__control:focus-visible + .c-toggle__track {
    box-shadow: 0 0 0 3px var(--ds-color-accent);
  }
  
  .c-toggle--invalid .c-toggle__control:focus-visible + .c-toggle__track {
    box-shadow: 0 0 0 3px var(--ds-color-status-danger);
  }
  
  .c-toggle__thumb {
    border: 1px solid var(--ds-color-border);
  }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
  .c-toggle__track,
  .c-toggle__thumb {
    transition: none;
  }
}

/* Print styles */
@media print {
  .c-toggle__track {
    background: white !important;
    border: 2px solid black !important;
    box-shadow: none !important;
  }
  
  .c-toggle__control:checked + .c-toggle__track {
    background: black !important;
  }
  
  .c-toggle__thumb {
    background: white !important;
    border: 1px solid black !important;
    box-shadow: none !important;
  }
  
  .c-toggle__control:checked + .c-toggle__track .c-toggle__thumb {
    background: white !important;
  }
}

/* ========================================
   UTILITY CLASSES
   ======================================== */

/* Screen reader only text */
.c-toggle .u-sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Loading state */
.c-toggle--loading .c-toggle__track::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 0.75rem;
  height: 0.75rem;
  border: 2px solid var(--ds-color-border);
  border-top-color: var(--ds-color-accent);
  border-radius: 50%;
  animation: c-toggle-spin 1s linear infinite;
}

.c-toggle--loading .c-toggle__thumb {
  opacity: 0;
}

@keyframes c-toggle-spin {
  to {
    transform: translate(-50%, -50%) rotate(360deg);
  }
}

/* ========================================
   TOGGLE VARIANTS
   ======================================== */

/* Success variant */
.c-toggle--success {
  --c-toggle-track-background-checked: var(--ds-color-status-success);
  --c-toggle-track-border-color-checked: var(--ds-color-status-success);
  --c-toggle-track-background-checked-hover: color-mix(in srgb, var(--ds-color-status-success) 90%, black);
}

/* Warning variant */
.c-toggle--warning {
  --c-toggle-track-background-checked: var(--ds-color-status-warning);
  --c-toggle-track-border-color-checked: var(--ds-color-status-warning);
  --c-toggle-track-background-checked-hover: color-mix(in srgb, var(--ds-color-status-warning) 90%, black);
}

/* Danger variant */
.c-toggle--danger {
  --c-toggle-track-background-checked: var(--ds-color-status-danger);
  --c-toggle-track-border-color-checked: var(--ds-color-status-danger);
  --c-toggle-track-background-checked-hover: color-mix(in srgb, var(--ds-color-status-danger) 90%, black);
}