/* ============================================
   Form Component
   ============================================ */

.form {
  width: 100%;
}

/* ===== Form Group ===== */

.form-group {
  margin-bottom: var(--spacing-lg);
}

.form-group:last-child {
  margin-bottom: 0;
}

/* ===== Form Label ===== */

.form-label {
  display: block;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-xs);
}

.required {
  color: var(--color-error);
}

/* ===== Form Input ===== */

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: var(--spacing-md);
  font-size: var(--font-size-base);
  font-family: var(--font-primary);
  color: var(--color-text-primary);
  background-color: var(--color-background);
  border: 2px solid var(--color-border);
  border-radius: var(--border-radius-md);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--color-text-tertiary);
}

/* Textarea */
.form-textarea {
  resize: vertical;
  min-height: 120px;
}

/* Select */
.form-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%236b7280' d='M10.293 3.293L6 7.586 1.707 3.293A1 1 0 00.293 4.707l5 5a1 1 0 001.414 0l5-5a1 1 0 10-1.414-1.414z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--spacing-md) center;
  padding-right: var(--spacing-3xl);
  cursor: pointer;
}

/* ===== Form States ===== */

/* Error State */
.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);
}

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

.form-input--success:focus,
.form-textarea--success:focus,
.form-select--success:focus {
  box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.1);
}

/* Disabled State */
.form-input:disabled,
.form-textarea:disabled,
.form-select:disabled {
  background-color: var(--color-surface);
  color: var(--color-text-tertiary);
  cursor: not-allowed;
  opacity: 0.6;
}

/* ===== Form Error Message ===== */

.form-error {
  display: block;
  font-size: var(--font-size-sm);
  color: var(--color-error);
  margin-top: var(--spacing-xs);
  min-height: 20px;
}

.form-error:empty {
  display: none;
}

/* ===== Form Success Message ===== */

.form-success {
  display: block;
  font-size: var(--font-size-sm);
  color: var(--color-success);
  margin-top: var(--spacing-xs);
}

/* ===== Form Help Text ===== */

.form-help {
  display: block;
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  margin-top: var(--spacing-xs);
}

/* ===== Form Message (overall form feedback) ===== */

.form-message {
  padding: var(--spacing-md);
  border-radius: var(--border-radius-md);
  margin-top: var(--spacing-lg);
  font-size: var(--font-size-sm);
  display: none;
}

.form-message:not(:empty) {
  display: block;
}

.form-message--success {
  background-color: rgba(16, 185, 129, 0.1);
  color: var(--color-success);
  border: 1px solid var(--color-success);
}

.form-message--error {
  background-color: rgba(239, 68, 68, 0.1);
  color: var(--color-error);
  border: 1px solid var(--color-error);
}

.form-message--info {
  background-color: rgba(59, 130, 246, 0.1);
  color: var(--color-info);
  border: 1px solid var(--color-info);
}

/* ===== Form Actions ===== */

.form-actions {
  display: flex;
  gap: var(--spacing-md);
  margin-top: var(--spacing-xl);
}

/* ===== Checkbox and Radio ===== */

.form-checkbox,
.form-radio {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-sm);
  cursor: pointer;
  margin-bottom: var(--spacing-sm);
}

.form-checkbox input[type="checkbox"],
.form-radio input[type="radio"] {
  width: 18px;
  height: 18px;
  margin-top: 2px;
  cursor: pointer;
  accent-color: var(--color-primary);
}

.form-checkbox label,
.form-radio label {
  cursor: pointer;
  color: var(--color-text-primary);
  font-weight: var(--font-weight-normal);
  margin-bottom: 0;
}

/* ===== Input Group (with icon or addon) ===== */

.form-input-group {
  position: relative;
  display: flex;
  align-items: center;
}

.form-input-group__icon {
  position: absolute;
  left: var(--spacing-md);
  width: 20px;
  height: 20px;
  color: var(--color-text-secondary);
  pointer-events: none;
}

.form-input-group__icon--left + .form-input {
  padding-left: calc(var(--spacing-md) * 2 + 20px);
}

.form-input-group__icon--right {
  left: auto;
  right: var(--spacing-md);
}

.form-input-group__icon--right ~ .form-input {
  padding-right: calc(var(--spacing-md) * 2 + 20px);
}

/* ===== Form Row (inline fields) ===== */

.form-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-lg);
}

@media (min-width: 768px) {
  .form-row--2 {
    grid-template-columns: repeat(2, 1fr);
  }

  .form-row--3 {
    grid-template-columns: repeat(3, 1fr);
  }
}