/* ================================================
   MASSGEBUNG Foundation Checkboxes & Toggles
   Tawny Furnace Design System
   ================================================ */

/* ===== Checkbox Container ===== */
.checkbox {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  cursor: pointer;
  user-select: none;
}

.checkbox:has(.checkbox-input:disabled) {
  opacity: 0.5;
  cursor: not-allowed;
}

/* ===== Hidden Native Input ===== */
.checkbox-input {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
  appearance: none;
  -webkit-appearance: none;
}

/* ===== Custom Checkbox Box ===== */
.checkbox-box {
  position: relative;
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  border: 2px solid var(--border-default);
  border-radius: var(--radius-sm);
  background-color: var(--bg-secondary);
  transition: all var(--transition-fast);
}

.checkbox:hover .checkbox-box {
  border-color: var(--text-secondary);
}

.checkbox-input:focus-visible + .checkbox-box {
  box-shadow: var(--shadow-focus);
  border-color: var(--orange-primary);
}

/* ===== Checked State ===== */
.checkbox-input:checked + .checkbox-box {
  background-color: var(--orange-primary);
  border-color: var(--orange-primary);
}

.checkbox-input:checked + .checkbox-box::after {
  content: '';
  position: absolute;
  left: 5px;
  top: 2px;
  width: 6px;
  height: 10px;
  border: solid var(--text-primary);
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}

/* ===== Checkbox Label ===== */
.checkbox-label {
  font-size: var(--font-size-sm);
  color: var(--text-primary);
  line-height: 1.4;
  padding-top: 1px;
}

.checkbox-label a {
  color: var(--orange-primary);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition-fast);
}

.checkbox-label a:hover {
  border-bottom-color: var(--orange-primary);
}

/* ===== DSGVO Checkbox Variant ===== */
.checkbox-dsgvo .checkbox-label {
  font-size: var(--font-size-xs);
  color: var(--text-secondary);
}

.checkbox-dsgvo .checkbox-label a {
  color: var(--orange-primary);
  font-weight: var(--font-weight-medium);
}

/* ===== Error State ===== */
.checkbox--error .checkbox-box {
  border-color: var(--error);
  background-color: var(--error-bg);
}

.checkbox--error .checkbox-label {
  color: var(--error);
}

.checkbox--error .checkbox-input:checked + .checkbox-box {
  background-color: var(--error);
  border-color: var(--error);
}

/* ===== Disabled State ===== */
.checkbox-input:disabled + .checkbox-box {
  opacity: 0.5;
  cursor: not-allowed;
}

/* ===== Checkbox Group ===== */
.checkbox-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.checkbox-group-label {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--text-primary);
  margin-bottom: var(--space-xs);
}

/* ===== Toggle Switch ===== */
.toggle {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  cursor: pointer;
  user-select: none;
}

.toggle:has(.toggle-input:disabled) {
  opacity: 0.5;
  cursor: not-allowed;
}

/* ===== Hidden Toggle Input ===== */
.toggle-input {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

/* ===== Toggle Switch Track ===== */
.toggle-switch {
  position: relative;
  width: 40px;
  height: 22px;
  background-color: var(--bg-elevated);
  border: 2px solid var(--border-default);
  border-radius: var(--radius-full);
  transition: all var(--transition-fast);
  flex-shrink: 0;
}

.toggle:hover .toggle-switch {
  border-color: var(--text-secondary);
}

.toggle-input:focus-visible + .toggle-switch {
  box-shadow: var(--shadow-focus);
  border-color: var(--orange-primary);
}

/* ===== Toggle Switch Handle ===== */
.toggle-switch::before {
  content: '';
  position: absolute;
  top: 2px;
  left: 2px;
  width: 14px;
  height: 14px;
  background-color: var(--text-primary);
  border-radius: 50%;
  transition: all var(--transition-fast);
}

/* ===== Toggle Checked State ===== */
.toggle-input:checked + .toggle-switch {
  background-color: var(--orange-primary);
  border-color: var(--orange-primary);
}

.toggle-input:checked + .toggle-switch::before {
  transform: translateX(18px);
}

/* ===== Toggle Label ===== */
.toggle-label {
  font-size: var(--font-size-sm);
  color: var(--text-primary);
}

/* ===== Toggle with Text on Switch ===== */
.toggle-switch--labeled {
  width: 60px;
  padding: 0 var(--space-xs);
}

.toggle-switch--labeled::after {
  content: 'OFF';
  position: absolute;
  right: var(--space-xs);
  font-size: 9px;
  font-weight: var(--font-weight-bold);
  color: var(--text-tertiary);
  transition: opacity var(--transition-fast);
}

.toggle-input:checked + .toggle-switch--labeled::after {
  content: 'ON';
  left: var(--space-xs);
  right: auto;
  color: var(--text-primary);
}

/* ===== Radio Button (Similar to Checkbox) ===== */
.radio {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  cursor: pointer;
  user-select: none;
}

.radio-input {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.radio-box {
  position: relative;
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  border: 2px solid var(--border-default);
  border-radius: 50%;
  background-color: var(--bg-secondary);
  transition: all var(--transition-fast);
}

.radio:hover .radio-box {
  border-color: var(--text-secondary);
}

.radio-input:focus-visible + .radio-box {
  box-shadow: var(--shadow-focus);
  border-color: var(--orange-primary);
}

.radio-input:checked + .radio-box {
  border-color: var(--orange-primary);
}

.radio-input:checked + .radio-box::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background-color: var(--orange-primary);
}

.radio-label {
  font-size: var(--font-size-sm);
  color: var(--text-primary);
  line-height: 1.4;
  padding-top: 1px;
}

/* ===== Radio Group ===== */
.radio-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.radio-group-label {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--text-primary);
  margin-bottom: var(--space-xs);
}