/* ========================================
   FORM COMPONENTS
   ======================================== */

/* Form group */
.form-group {
  margin-bottom: var(--spacing-4);
}

/* Form label */
.form-label {
  display: block;
  margin-bottom: var(--spacing-2);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-primary);
  font-size: var(--font-size-sm);
}

/* Required indicator */
.form-label .required {
  color: var(--color-error);
  margin-left: var(--spacing-1);
}

/* Form input */
.form-input,
.form-textarea,
.form-select {
  display: block;
  width: 100%;
  padding: var(--spacing-2) var(--spacing-3);
  font-size: var(--font-size-base);
  line-height: var(--line-height-normal);
  color: var(--color-text-primary);
  background-color: var(--color-background-primary);
  border: var(--border-width-thin) solid var(--color-border-medium);
  border-radius: var(--border-radius-md);
  transition: border-color var(--transition-duration-fast) var(--transition-timing-out),
              box-shadow var(--transition-duration-fast) var(--transition-timing-out);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-100);
}

.form-input:disabled,
.form-textarea:disabled,
.form-select:disabled {
  background-color: var(--color-background-tertiary);
  cursor: not-allowed;
  opacity: 0.7;
}

/* Textarea specific */
.form-textarea {
  min-height: 100px;
  resize: vertical;
}

/* Select specific */
.form-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%234b5563' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--spacing-3) center;
  background-size: 16px;
  padding-right: var(--spacing-8);
}

/* Form input sizes */
.form-input-sm,
.form-select-sm {
  padding: var(--spacing-1) var(--spacing-2);
  font-size: var(--font-size-sm);
  border-radius: var(--border-radius-sm);
}

.form-input-lg,
.form-select-lg {
  padding: var(--spacing-3) var(--spacing-4);
  font-size: var(--font-size-lg);
  border-radius: var(--border-radius-lg);
}

/* Form help text */
.form-help {
  display: block;
  margin-top: var(--spacing-1);
  font-size: var(--font-size-sm);
  color: var(--color-text-tertiary);
}

/* Form error */
.form-error {
  display: block;
  margin-top: var(--spacing-1);
  font-size: var(--font-size-sm);
  color: var(--color-error);
}

.form-input.error,
.form-textarea.error,
.form-select.error {
  border-color: var(--color-error);
}

.form-input.error:focus,
.form-textarea.error:focus,
.form-select.error:focus {
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1);
}

/* Form success */
.form-input.success,
.form-textarea.success,
.form-select.success {
  border-color: var(--color-success);
}

/* Checkbox and radio */
.form-check {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-2);
  margin-bottom: var(--spacing-2);
}

.form-check-input {
  width: 1.2em;
  height: 1.2em;
  margin-top: 0.15em;
  accent-color: var(--color-primary);
  cursor: pointer;
  flex-shrink: 0;
}

.form-check-label {
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
  cursor: pointer;
  line-height: var(--line-height-normal);
}

/* Checkbox group */
.checkbox-group,
.radio-group {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-2);
}

/* Inline checkbox/radio */
.form-check-inline {
  display: inline-flex;
  align-items: center;
  margin-right: var(--spacing-4);
}

/* Form row (grid layout) */
.form-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-4);
}

/* Form actions */
.form-actions {
  display: flex;
  gap: var(--spacing-3);
  margin-top: var(--spacing-6);
  align-items: center;
  flex-wrap: wrap;
}

/* Inline form */
.form-inline {
  display: flex;
  gap: var(--spacing-2);
  align-items: center;
  flex-wrap: wrap;
}

.form-inline .form-group {
  margin-bottom: 0;
  flex: 1 1 auto;
}

/* Search form */
.form-search {
  position: relative;
}

.form-search .form-input {
  padding-right: var(--spacing-10);
}

.form-search button {
  position: absolute;
  right: var(--spacing-2);
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: var(--color-text-tertiary);
  cursor: pointer;
  padding: var(--spacing-1);
  display: flex;
  align-items: center;
  justify-content: center;
}

.form-search button:hover {
  color: var(--color-primary);
}

/* File input */
.form-file {
  display: flex;
  align-items: center;
  gap: var(--spacing-3);
  padding: var(--spacing-2);
  border: var(--border-width-thin) dashed var(--color-border-medium);
  border-radius: var(--border-radius-md);
  background-color: var(--color-background-secondary);
}

.form-file-input {
  display: none;
}

.form-file-label {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-2);
  padding: var(--spacing-1) var(--spacing-3);
  background-color: var(--color-primary);
  color: white;
  border-radius: var(--border-radius-md);
  cursor: pointer;
  font-size: var(--font-size-sm);
  transition: background-color var(--transition-duration-fast) var(--transition-timing-out);
}

.form-file-label:hover {
  background-color: var(--color-primary-dark);
}

.form-file-name {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

/* Toggle switch */
.form-switch {
  display: flex;
  align-items: center;
  gap: var(--spacing-2);
  cursor: pointer;
}

.form-switch input {
  display: none;
}

.switch-slider {
  width: 44px;
  height: 24px;
  background-color: var(--color-border-dark);
  border-radius: var(--border-radius-full);
  position: relative;
  transition: background-color var(--transition-duration-fast) var(--transition-timing-out);
}

.switch-slider::before {
  content: '';
  position: absolute;
  width: 20px;
  height: 20px;
  background-color: white;
  border-radius: 50%;
  top: 2px;
  left: 2px;
  transition: transform var(--transition-duration-fast) var(--transition-timing-out);
}

.form-switch input:checked + .switch-slider {
  background-color: var(--color-primary);
}

.form-switch input:checked + .switch-slider::before {
  transform: translateX(20px);
}

/* Responsive forms */
@media (max-width: 640px) {
  .form-inline {
    flex-direction: column;
    align-items: stretch;
  }
  
  .form-actions {
    flex-direction: column;
  }
  
  .form-actions .btn {
    width: 100%;
    justify-content: center;
  }
  
  .form-row {
    grid-template-columns: 1fr;
  }
}