/* 모바일 메뉴 오버레이 */
#mobile-menu[hidden] { display: none; }

#mobile-menu {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.4);
  -webkit-backdrop-filter: blur(2px);
  backdrop-filter: blur(2px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 220ms ease;
  z-index: 20000;
}

#mobile-menu.active {
  opacity: 1;
  pointer-events: auto;
}

/* 모바일 메뉴 패널 */
.mobile-menu .mobile-nav {
  position: absolute;
  right: 0;
  top: 0;
  bottom: 0;
  width: min(88vw, 420px);
  background: var(--bg-primary);
  box-shadow: var(--shadow-lg);
  transform: translateX(100%);
  transition: transform 260ms ease;
  display: flex;
  flex-direction: column;
  padding: 20px;
  padding-bottom: calc(20px + env(safe-area-inset-bottom));
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  will-change: transform;
}

.mobile-menu.active .mobile-nav {
  transform: translateX(0);
}

/* 헤더 영역 */
.mobile-menu .mobile-nav-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}

.mobile-menu .mobile-brand {
  display: flex;
  align-items: center;
}

.mobile-menu .mobile-brand .brand-icon {
  width: 32px;
  height: 32px;
}

.mobile-menu .mobile-close {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: none;
  background: none;
  border-radius: 50%;
  cursor: pointer;
  color: var(--text-primary);
  transition: background-color 0.2s ease;
}

.mobile-menu .mobile-close:hover {
  background: var(--bg-tertiary);
}

.mobile-menu .mobile-close i {
  font-size: 20px;
}

/* 히어로 영역 */
.mobile-menu .mobile-nav-hero {
  margin-bottom: 20px;
}

.mobile-menu .hero-title {
  font-size: 22px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 8px;
  letter-spacing: -0.02em;
  line-height: 1.3;
}

.mobile-menu .hero-sub {
  font-size: 15px;
  color: var(--text-secondary);
  letter-spacing: -0.01em;
  line-height: 1.5;
}

/* 로그인/회원가입 버튼 */
.mobile-menu .mobile-nav-actions {
  display: flex;
  gap: 8px;
  margin-bottom: 24px;
}

.mobile-menu .mobile-nav-actions .btn {
  flex: 1;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  font-weight: 600;
  border-radius: 8px;
  text-decoration: none;
  transition: all 0.2s ease;
}

.mobile-menu .mobile-nav-actions .btn-primary {
  background: var(--primary);
  color: #fff;
  border: 1px solid var(--primary);
}

.mobile-menu .mobile-nav-actions .btn-primary:hover {
  background: var(--primary-60);
  border-color: var(--primary-60);
}

.mobile-menu .mobile-nav-actions .btn-outline {
  background: #fff;
  color: var(--text-primary);
  border: 1px solid var(--border-light);
}

.mobile-menu .mobile-nav-actions .btn-outline:hover {
  background: var(--bg-tertiary);
}

/* 메뉴 리스트 */
.mobile-menu .mobile-nav-list {
  display: flex;
  flex-direction: column;
  margin-bottom: auto;
  padding: 12px 0;
}

.mobile-menu .mobile-nav-list .nav-item {
  display: flex;
  align-items: center;
  padding: 16px 4px;
  text-decoration: none;
  color: var(--text-primary);
  border-bottom: 1px solid var(--border-light);
  transition: background-color 0.2s ease;
}

.mobile-menu .mobile-nav-list .nav-item:hover {
  background: var(--primary-10);
}

.mobile-menu .mobile-nav-list .nav-item i:first-child {
  width: 24px;
  height: 24px;
  margin-right: 12px;
  font-size: 20px;
  color: var(--primary);
}

.mobile-menu .mobile-nav-list .nav-item span {
  flex: 1;
  font-size: 16px;
  font-weight: 500;
}

.mobile-menu .mobile-nav-list .nav-item i:last-child {
  font-size: 16px;
  color: var(--text-secondary);
  margin-left: 8px;
}

/* CTA 버튼 */
.mobile-menu .mobile-cta {
  margin: 24px 0;
}

.mobile-menu .mobile-cta .cta-button {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 52px;
  background: var(--primary);
  color: #fff;
  font-size: 16px;
  font-weight: 600;
  border-radius: 8px;
  text-decoration: none;
  transition: all 0.2s ease;
}

.mobile-menu .mobile-cta .cta-button:hover {
  background: var(--primary-60);
  transform: translateY(-1px);
}

.mobile-menu .mobile-cta .cta-button:active {
  transform: translateY(0);
}

/* 푸터 링크 */
.mobile-menu .mobile-nav-footer {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  padding-top: 16px;
  border-top: 1px solid var(--border-light);
}

.mobile-menu .mobile-nav-footer .footer-link {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 14px;
  transition: color 0.2s ease;
}

.mobile-menu .mobile-nav-footer .footer-link:hover {
  color: var(--text-primary);
}

.mobile-menu .mobile-nav-footer .footer-link i {
  font-size: 16px;
}

/* 기본 타이포 마진 초기화 */
.mobile-menu h1, 
.mobile-menu h2, 
.mobile-menu h3, 
.mobile-menu p { 
  margin: 0; 
}

/* 데스크탑에서 모바일 오버레이 비활성화 */
@media (min-width: 768px) {
  #mobile-menu { display: none; }
}

/* 모션 감소 환경 대응 */
@media (prefers-reduced-motion: reduce) {
  #mobile-menu, 
  #mobile-menu .mobile-nav,
  .mobile-menu .mobile-nav-actions .btn,
  .mobile-menu .mobile-cta .cta-button {
    transition: none;
  }
}