/**
 * Fixperts - CSS 유틸리티 클래스
 * 자주 사용되는 스타일 패턴을 재사용 가능한 클래스로 정의
 */

/* ==================== 레이아웃 ==================== */
.flex {
  display: flex;
}

.flex-center {
  display: flex;
  align-items: center;
  justify-content: center;
}

.flex-between {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.flex-col {
  flex-direction: column;
}

.flex-wrap {
  flex-wrap: wrap;
}

/* ==================== 간격 ==================== */
.gap-xs {
  gap: var(--spacing-xs);
}

.gap-sm {
  gap: var(--spacing-sm);
}

.gap-md {
  gap: var(--spacing-md);
}

.gap-lg {
  gap: var(--spacing-lg);
}

/* ==================== 버튼 기본 스타일 ==================== */
.btn-base {
  border: var(--border-standard);
  border-radius: var(--border-radius-sm);
  cursor: pointer;
  transition: var(--transition-base);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-normal);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.btn-sm {
  padding: var(--padding-btn-sm);
  font-size: var(--font-size-xs);
}

.btn-md {
  padding: var(--padding-btn-md);
  font-size: var(--font-size-sm);
}

.btn-lg {
  padding: var(--padding-btn-lg);
  font-size: var(--font-size-sm);
}

/* ==================== 버튼 색상 ==================== */
.btn-primary {
  background: var(--color-secondary);
  color: var(--color-text-light);
  border-color: var(--color-secondary);
}

.btn-primary:hover:not(:disabled) {
  background: var(--color-secondary-hover);
  border-color: var(--color-secondary-hover);
}

.btn-primary:focus-visible {
  outline: 2px solid var(--color-secondary);
  outline-offset: 2px;
}

.btn-secondary {
  background: var(--color-bg-primary);
  color: var(--color-text-secondary);
  border-color: var(--color-border-light);
}

.btn-secondary:hover:not(:disabled) {
  background: var(--color-bg-gray-50);
  border-color: var(--color-border-hover);
  color: var(--color-text-primary);
}

.btn-secondary:focus-visible {
  outline: 2px solid var(--color-border-hover);
  outline-offset: 2px;
}

.btn-accent {
  background: var(--color-accent);
  color: var(--color-text-light);
  border-color: var(--color-accent);
}

.btn-accent:hover:not(:disabled) {
  background: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
}

.btn-accent:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.btn-error {
  background: var(--color-bg-primary);
  color: var(--color-text-secondary);
  border-color: var(--color-border-light);
}

.btn-error:hover:not(:disabled) {
  background: var(--color-bg-red-light);
  color: var(--color-error);
  border-color: var(--color-error);
}

.btn-error:focus-visible {
  outline: 2px solid var(--color-error);
  outline-offset: 2px;
}

.btn-disabled,
.btn-base:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

/* ==================== 호버 효과 ==================== */
.hover-lift {
  transition: all var(--transition-base);
}

.hover-lift:hover:not(:disabled) {
  transform: translateY(-1px);
}

.hover-shadow:hover:not(:disabled) {
  box-shadow: var(--shadow-md);
}

/* ==================== 네비게이션 화살표 버튼 ==================== */
.nav-arrow-btn {
  width: 48px;
  height: 48px;
  background: transparent;
  border: none;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-base);
}

.nav-arrow-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.nav-arrow-btn:focus-visible {
  outline: 2px solid var(--color-secondary);
  outline-offset: 2px;
  border-radius: var(--border-radius-sm);
}

.nav-arrow-btn-icon {
  width: 25px;
  height: 25px;
  border-left: 5px solid var(--color-text-primary);
  border-bottom: 5px solid var(--color-text-primary);
  border-radius: 0 0 0 3px;
  display: block;
  transition: border-color var(--transition-base);
}

.nav-arrow-btn--prev .nav-arrow-btn-icon {
  transform: rotate(45deg);
  margin-right: -2px;
}

.nav-arrow-btn--next .nav-arrow-btn-icon {
  transform: rotate(-135deg);
  margin-left: -2px;
}

.nav-arrow-btn:hover:not(:disabled) .nav-arrow-btn-icon {
  border-color: var(--color-secondary);
}

/* ==================== 카드 스타일 ==================== */
.card {
  background: var(--color-bg-primary);
  border: var(--border-standard);
  border-radius: var(--border-radius-md);
}

.card-hover {
  transition: all var(--transition-base);
}

.card-hover:hover {
  border-color: var(--color-border-focus);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.card-hover:focus-within {
  border-color: var(--color-border-focus);
  box-shadow: var(--shadow-md);
}

/* ==================== 모달 공통 스타일 ==================== */
.modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: var(--z-index-modal);
}

.modal.active {
  display: block;
}

.modal__overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(2px);
}

.modal__content {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: var(--color-bg-primary);
  border-radius: var(--border-radius-md);
  width: 90%;
  max-width: 500px;
  box-shadow: var(--shadow-xl);
}

.modal__header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--padding-modal-header);
  border-bottom: var(--border-standard);
}

.modal__header h3 {
  margin: 0;
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--color-text-dark);
}

.modal__close {
  background: none;
  border: none;
  font-size: 24px;
  color: var(--color-text-secondary);
  cursor: pointer;
  padding: 0;
  width: 30px;
  height: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--border-radius-sm);
  transition: var(--transition-base);
}

.modal__close:hover {
  background: var(--color-bg-tertiary);
  color: var(--color-text-primary);
}

.modal__close:focus-visible {
  outline: 2px solid var(--color-secondary);
  outline-offset: 2px;
}

.modal__body {
  padding: var(--padding-modal-body);
}

.modal__footer {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  padding: var(--padding-modal-footer);
  border-top: var(--border-standard);
  background: var(--color-bg-gray-50);
  border-radius: 0 0 var(--border-radius-md) var(--border-radius-md);
}

/* ==================== 폼 스타일 ==================== */
.form-field {
  margin-bottom: 20px;
}

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

.form-field label {
  display: block;
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-sm);
}

.form-input {
  width: 100%;
  padding: 10px 12px;
  border: var(--border-standard);
  border-radius: var(--border-radius-sm);
  font-size: var(--font-size-sm);
  font-family: inherit;
  transition: var(--transition-base);
}

.form-input:focus,
.form-input select:focus {
  outline: none;
  border-color: var(--color-border-focus);
  box-shadow: 0 0 0 3px rgba(249, 151, 29, 0.1);
}

.form-input select {
  cursor: pointer;
  background: var(--color-bg-primary);
}

.form-textarea {
  resize: vertical;
  min-height: 100px;
}

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

/* ==================== 텍스트 유틸리티 ==================== */
.text-center {
  text-align: center;
}

.text-right {
  text-align: right;
}

.text-primary {
  color: var(--color-text-primary);
}

.text-secondary {
  color: var(--color-text-secondary);
}

.text-tertiary {
  color: var(--color-text-tertiary);
}

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

/* ==================== 반응형 모바일 ==================== */
@media (max-width: 768px) {
  .modal__content {
    width: 95%;
  }

  .modal__body {
    padding: 16px;
  }

  .modal__header,
  .modal__footer {
    padding: 16px;
  }
}