/* ========================================
   Form Styles
   ======================================== */

/* ========================================
   Form Layout
   ======================================== */

.form {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

.form-row {
  display: grid;
  gap: var(--space-5);
}

@media (min-width: 640px) {
  .form-row {
    grid-template-columns: repeat(2, 1fr);
  }
}

.form-group {
  display: flex;
  flex-direction: column;
}

/* ========================================
   Labels
   ======================================== */

.form-label {
  display: block;
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  color: var(--color-gray-700);
  margin-bottom: var(--space-2);
}

.form-label-required::after {
  content: ' *';
  color: var(--color-error);
}

/* ========================================
   Inputs
   ======================================== */

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  font-family: var(--font-primary);
  font-size: var(--text-base);
  color: var(--color-gray-800);
  background-color: var(--color-white);
  border: 2px solid var(--color-gray-200);
  border-radius: var(--radius-lg);
  transition: all var(--transition-fast);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--color-gray-400);
}

.form-input:hover,
.form-textarea:hover,
.form-select:hover {
  border-color: var(--color-gray-300);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(65, 22, 41, 0.1);
}

/* Input Sizes */
.form-input-sm {
  padding: var(--space-2) var(--space-3);
  font-size: var(--text-sm);
}

.form-input-lg {
  padding: var(--space-4) var(--space-5);
  font-size: var(--text-lg);
}

/* Textarea */
.form-textarea {
  min-height: 150px;
  resize: vertical;
  line-height: var(--leading-relaxed);
}

/* Select */
.form-select {
  cursor: pointer;
  -webkit-appearance: none;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%23757575' 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(--space-3) center;
  background-size: 20px;
  padding-right: var(--space-10);
}

/* ========================================
   Validation States
   ======================================== */

/* Error State */
.form-input.error,
.form-textarea.error,
.form-select.error {
  border-color: var(--color-error);
  background-color: rgba(239, 68, 68, 0.02);
}

.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);
  background-color: rgba(34, 197, 94, 0.02);
}

.form-input.success:focus,
.form-textarea.success:focus,
.form-select.success:focus {
  box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.1);
}

/* Error Message */
.form-error {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  font-size: var(--text-sm);
  color: var(--color-error);
  margin-top: var(--space-2);
}

.form-error-icon {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

/* Help Text */
.form-help {
  font-size: var(--text-sm);
  color: var(--color-gray-500);
  margin-top: var(--space-2);
}

/* ========================================
   Checkbox & Radio
   ======================================== */

.form-check {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  cursor: pointer;
}

.form-check-input {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  margin-top: 2px;
  cursor: pointer;
  accent-color: var(--color-primary);
}

.form-check-label {
  font-size: var(--text-sm);
  color: var(--color-gray-700);
  line-height: var(--leading-relaxed);
}

.form-check-label a {
  color: var(--color-primary);
  text-decoration: underline;
}

.form-check-label a:hover {
  color: var(--color-primary-light);
}

/* Custom Checkbox */
.custom-checkbox {
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  cursor: pointer;
}

.custom-checkbox input {
  position: absolute;
  opacity: 0;
  cursor: pointer;
  height: 0;
  width: 0;
}

.custom-checkbox-mark {
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  background-color: var(--color-white);
  border: 2px solid var(--color-gray-300);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
}

.custom-checkbox:hover input ~ .custom-checkbox-mark {
  border-color: var(--color-primary);
}

.custom-checkbox input:checked ~ .custom-checkbox-mark {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
}

.custom-checkbox-mark::after {
  content: '';
  display: none;
  width: 6px;
  height: 10px;
  border: solid var(--color-white);
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}

.custom-checkbox input:checked ~ .custom-checkbox-mark::after {
  display: block;
}

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

.form-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  margin-top: var(--space-2);
}

.form-actions .btn {
  flex: 1;
  min-width: 150px;
}

@media (min-width: 640px) {
  .form-actions .btn {
    flex: 0 0 auto;
  }
}

/* ========================================
   Input with Icon
   ======================================== */

.input-group {
  position: relative;
}

.input-group .form-input {
  padding-left: var(--space-12);
}

.input-group-icon {
  position: absolute;
  left: var(--space-4);
  top: 50%;
  transform: translateY(-50%);
  width: 20px;
  height: 20px;
  color: var(--color-gray-400);
  pointer-events: none;
}

.input-group .form-input:focus ~ .input-group-icon {
  color: var(--color-primary);
}

/* Input with Button */
.input-button-group {
  display: flex;
  gap: var(--space-2);
}

.input-button-group .form-input {
  flex: 1;
}

/* ========================================
   File Input
   ======================================== */

.form-file {
  position: relative;
}

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

.form-file-label {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  padding: var(--space-6);
  font-size: var(--text-sm);
  color: var(--color-gray-600);
  background-color: var(--color-gray-50);
  border: 2px dashed var(--color-gray-300);
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.form-file-label:hover {
  border-color: var(--color-primary);
  background-color: rgba(65, 22, 41, 0.02);
}

.form-file-input:focus ~ .form-file-label {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(65, 22, 41, 0.1);
}

.form-file-icon {
  width: 24px;
  height: 24px;
  color: var(--color-gray-400);
}

/* ========================================
   Floating Label
   ======================================== */

.floating-label {
  position: relative;
}

.floating-label .form-input,
.floating-label .form-textarea {
  padding-top: var(--space-5);
}

.floating-label .form-label {
  position: absolute;
  left: var(--space-4);
  top: 50%;
  transform: translateY(-50%);
  font-size: var(--text-base);
  font-weight: var(--font-normal);
  color: var(--color-gray-400);
  pointer-events: none;
  transition: all var(--transition-fast);
  margin: 0;
}

.floating-label .form-textarea ~ .form-label {
  top: var(--space-4);
  transform: none;
}

.floating-label .form-input:focus ~ .form-label,
.floating-label .form-input:not(:placeholder-shown) ~ .form-label,
.floating-label .form-textarea:focus ~ .form-label,
.floating-label .form-textarea:not(:placeholder-shown) ~ .form-label {
  top: var(--space-2);
  font-size: var(--text-xs);
  color: var(--color-primary);
}

/* ========================================
   Character Counter
   ======================================== */

.form-counter {
  font-size: var(--text-xs);
  color: var(--color-gray-500);
  text-align: right;
  margin-top: var(--space-1);
}

.form-counter.warning {
  color: var(--color-warning);
}

.form-counter.error {
  color: var(--color-error);
}