/* Header Navigation Styles */
.nav {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.user-greeting {
  display: flex;
  align-items: center;
  margin-right: 12px;
  color: #64748b;
  font-weight: 500;
}

.user-name {
  font-size: 0.875rem;
  font-weight: 600;
  color: #475569;
}

/* Dark Theme */
[data-theme="dark"] .user-greeting {
  color: #d1d5db;
}

[data-theme="dark"] .user-name {
  color: #f3f4f6;
}

/* Base Button Style */
.nav-btn {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 6px 10px;
  border: none;
  border-radius: 6px;
  font-size: 0.8rem;
  font-weight: 500;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
  white-space: nowrap;
}

.nav-btn:focus {
  outline: none;
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.5);
}

.btn-icon {
  width: 14px;
  height: 14px;
  stroke-width: 2;
  transition: transform 0.2s ease;
}

.nav-btn:hover .btn-icon {
  transform: scale(1.1);
}

/* Login Button */
.login-btn {
  background: rgba(71, 85, 105, 0.8);
  color: #e2e8f0;
  border: 1px solid rgba(71, 85, 105, 0.3);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.login-btn:hover {
  background: rgba(71, 85, 105, 0.9);
  border-color: rgba(71, 85, 105, 0.5);
  color: #f1f5f9;
  box-shadow: 0 2px 6px rgba(71, 85, 105, 0.2);
  transform: translateY(-1px);
}

.login-btn:active {
  transform: translateY(0);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

/* Register Button */
.register-btn {
  background: rgba(100, 116, 139, 0.8);
  color: #e2e8f0;
  border: 1px solid rgba(100, 116, 139, 0.3);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.register-btn:hover {
  background: rgba(100, 116, 139, 0.9);
  border-color: rgba(100, 116, 139, 0.5);
  color: #f1f5f9;
  box-shadow: 0 2px 6px rgba(100, 116, 139, 0.2);
  transform: translateY(-1px);
}

.register-btn:active {
  transform: translateY(0);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

/* Profile Button */
.profile-btn {
  background: rgba(51, 65, 85, 0.8);
  color: #e2e8f0;
  border: 1px solid rgba(51, 65, 85, 0.3);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.profile-btn:hover {
  background: rgba(51, 65, 85, 0.9);
  border-color: rgba(51, 65, 85, 0.5);
  color: #f1f5f9;
  box-shadow: 0 2px 6px rgba(51, 65, 85, 0.2);
  transform: translateY(-1px);
}

/* Logout Button */
.logout-btn {
  background: rgba(71, 85, 105, 0.8);
  color: #e2e8f0;
  border: 1px solid rgba(71, 85, 105, 0.3);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.logout-btn:hover {
  background: rgba(71, 85, 105, 0.9);
  border-color: rgba(71, 85, 105, 0.5);
  color: #fecaca;
  box-shadow: 0 2px 6px rgba(71, 85, 105, 0.2);
  transform: translateY(-1px);
}

/* Community Dropdown */
.dropdown {
  position: relative;
  display: inline-block;
}

.community-btn {
  background: rgba(55, 65, 81, 0.8);
  color: #e2e8f0;
  border: 1px solid rgba(55, 65, 81, 0.3);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
  position: relative;
}

.community-btn:hover {
  background: rgba(55, 65, 81, 0.9);
  border-color: rgba(55, 65, 81, 0.5);
  color: #f1f5f9;
  box-shadow: 0 2px 6px rgba(55, 65, 81, 0.2);
  transform: translateY(-1px);
}

.dropdown-arrow {
  width: 12px;
  height: 12px;
  transition: transform 0.2s ease;
}

.dropdown:hover .dropdown-arrow {
  transform: rotate(180deg);
}

/* 커뮤니티 버튼과 메뉴 사이 연결 영역 */
.community-btn::after {
  content: '';
  position: absolute;
  top: 100%;
  left: -5px;
  right: -5px;
  height: 8px;
  background: transparent;
  z-index: 999;
}

/* 커뮤니티 드롭다운 안정성 개선 */
.dropdown-content {
  display: none;
  position: absolute;
  background: white;
  min-width: 180px;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
  z-index: 1000;
  border-radius: 12px;
  top: calc(100% + 4px);
  left: 0;
  border: 1px solid rgba(0, 0, 0, 0.1);
  overflow: hidden;
}

/* 호버 시 표시 및 안정성 확보 */
.dropdown:hover .dropdown-content,
.dropdown:focus-within .dropdown-content {
  display: block;
  animation: slideDown 0.2s ease-out;
}

/* 메뉴 상단 투명 연결 영역 */
.dropdown-content::before {
  content: '';
  position: absolute;
  top: -8px;
  left: -5px;
  right: -5px;
  height: 12px;
  background: transparent;
}

/* 드롭다운 전체 영역 호버 확장 */
.dropdown:hover::after {
  content: '';
  position: absolute;
  top: 0;
  right: -10px;
  bottom: -10px;
  left: -10px;
  z-index: 998;
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.dropdown-item {
  display: flex;
  align-items: center;
  gap: 8px;
  color: #374151 !important;
  padding: 12px 16px;
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 500;
  border-bottom: 1px solid #f3f4f6;
  transition: all 0.15s ease;
}

.dropdown-item:last-child {
  border-bottom: none;
}

.dropdown-item:hover {
  background: rgba(248, 250, 252, 0.8);
  color: #1f2937 !important;
}

.item-icon {
  width: 14px;
  height: 14px;
  stroke-width: 2;
}

/* Theme Toggle Button */
.theme-btn {
  background: rgba(55, 65, 81, 0.8);
  color: #e2e8f0;
  border: 1px solid rgba(55, 65, 81, 0.3);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
  padding: 6px;
  border-radius: 50%;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.theme-btn:hover {
  background: rgba(55, 65, 81, 0.9);
  border-color: rgba(55, 65, 81, 0.5);
  color: #f1f5f9;
  box-shadow: 0 2px 6px rgba(55, 65, 81, 0.2);
  transform: translateY(-1px) rotate(15deg);
}

.theme-btn .btn-icon {
  width: 16px;
  height: 16px;
}

.sun-icon {
  display: none;
}

.moon-icon {
  display: block;
}

/* 관리자 드롭다운 (안정성 개선 버전) */
.admin-dropdown {
  position: relative;
  display: inline-block;
  margin-left: 8px;
  padding-left: 8px;
  border-left: 1px solid rgba(255, 255, 255, 0.2);
}

.admin-toggle-btn {
  background: rgba(55, 65, 81, 0.8);
  color: #e2e8f0;
  border: 1px solid rgba(55, 65, 81, 0.3);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
  border-radius: 6px;
  padding: 6px 10px;
  font-size: 0.8rem;
  font-weight: 500;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
}

.admin-toggle-btn:hover {
  background: rgba(55, 65, 81, 0.9);
  border-color: rgba(55, 65, 81, 0.5);
  color: #f1f5f9;
  box-shadow: 0 2px 6px rgba(55, 65, 81, 0.2);
  transform: translateY(-1px);
}

/* 버튼과 메뉴 사이 연결 영역 */
.admin-toggle-btn::after {
  content: '';
  position: absolute;
  top: 100%;
  left: -5px;
  right: -5px;
  height: 8px;
  background: transparent;
  z-index: 999;
}

.admin-dropdown-content {
  display: none;
  position: absolute;
  background: white;
  min-width: 160px;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
  z-index: 1000;
  border-radius: 12px;
  top: calc(100% + 4px);
  right: 0;
  border: 1px solid rgba(0, 0, 0, 0.1);
  overflow: hidden;
}

/* 메뉴 상단 투명 연결 영역 */
.admin-dropdown-content::before {
  content: '';
  position: absolute;
  top: -8px;
  left: -5px;
  right: -5px;
  height: 12px;
  background: transparent;
}

/* 호버 시 표시 및 안정성 확보 */
.admin-dropdown:hover .admin-dropdown-content,
.admin-dropdown:focus-within .admin-dropdown-content {
  display: block;
  animation: slideDown 0.2s ease-out;
}

/* 드롭다운 전체 영역 호버 확장 */
.admin-dropdown:hover::after {
  content: '';
  position: absolute;
  top: 0;
  right: -10px;
  bottom: -10px;
  left: -10px;
  z-index: 998;
}

.admin-dropdown-item {
  display: flex;
  align-items: center;
  gap: 8px;
  color: #374151 !important;
  padding: 12px 16px;
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 500;
  border-bottom: 1px solid #f3f4f6;
  transition: all 0.15s ease;
}

.admin-dropdown-item:last-child {
  border-bottom: none;
}

.admin-dropdown-item:hover {
  background: rgba(248, 250, 252, 0.8);
  color: #1f2937 !important;
}

/* 기존 admin-section 숨김 */
.admin-section {
  display: none;
}

/* Dark Mode */
[data-theme="dark"] .dropdown-content {
  background: #1f2937;
  border-color: #374151;
}

[data-theme="dark"] .dropdown-item {
  color: #e5e7eb !important;
  border-color: #374151;
}

[data-theme="dark"] .dropdown-item:hover {
  background: rgba(55, 65, 81, 0.8);
  color: #f9fafb !important;
}

[data-theme="dark"] .admin-dropdown-content {
  background: #1f2937;
  border-color: #374151;
}

[data-theme="dark"] .admin-dropdown-item {
  color: #e5e7eb !important;
  border-color: #374151;
}

[data-theme="dark"] .admin-dropdown-item:hover {
  background: rgba(55, 65, 81, 0.8);
  color: #f9fafb !important;
}

[data-theme="dark"] .sun-icon {
  display: block;
}

[data-theme="dark"] .moon-icon {
  display: none;
}

[data-theme="dark"] .user-greeting {
  color: #d1d5db;
}

[data-theme="dark"] .user-name {
  color: #f3f4f6;
}

/* 다크모드에서 버튼 색상 조정 */
[data-theme="dark"] .login-btn {
  background: rgba(75, 85, 99, 0.7);
  border-color: rgba(75, 85, 99, 0.4);
  color: #d1d5db;
}

[data-theme="dark"] .login-btn:hover {
  color: #f3f4f6;
}

[data-theme="dark"] .register-btn {
  background: rgba(107, 114, 128, 0.7);
  border-color: rgba(107, 114, 128, 0.4);
  color: #d1d5db;
}

[data-theme="dark"] .register-btn:hover {
  color: #f3f4f6;
}

[data-theme="dark"] .profile-btn {
  background: rgba(55, 65, 81, 0.7);
  border-color: rgba(55, 65, 81, 0.4);
  color: #d1d5db;
}

[data-theme="dark"] .profile-btn:hover {
  color: #f3f4f6;
}

[data-theme="dark"] .logout-btn {
  background: rgba(75, 85, 99, 0.7);
  border-color: rgba(75, 85, 99, 0.4);
  color: #d1d5db;
}

[data-theme="dark"] .logout-btn:hover {
  color: #fca5a5;
}

[data-theme="dark"] .community-btn {
  background: rgba(75, 85, 99, 0.7);
  border-color: rgba(75, 85, 99, 0.4);
  color: #d1d5db;
}

[data-theme="dark"] .community-btn:hover {
  color: #f3f4f6;
}

[data-theme="dark"] .admin-toggle-btn {
  background: rgba(75, 85, 99, 0.7);
  border-color: rgba(75, 85, 99, 0.4);
  color: #d1d5db;
}

[data-theme="dark"] .admin-toggle-btn:hover {
  color: #f3f4f6;
}

[data-theme="dark"] .theme-btn {
  background: rgba(75, 85, 99, 0.7);
  border-color: rgba(75, 85, 99, 0.4);
  color: #d1d5db;
}

[data-theme="dark"] .theme-btn:hover {
  color: #f3f4f6;
}

/* Responsive Design */
@media (max-width: 768px) {
  .nav {
    gap: 3px;
  }

  .nav-btn {
    padding: 4px 6px;
    font-size: 0.7rem;
  }

  .nav-btn span {
    display: none;
  }

  .nav-btn .btn-icon {
    width: 16px;
    height: 16px;
  }

  .user-greeting {
    display: none;
  }

  .dropdown-content {
    min-width: 160px;
    right: 0;
    left: auto;
  }

  .admin-dropdown {
    margin-left: 4px;
    padding-left: 4px;
  }

  .admin-toggle-btn {
    padding: 4px 6px;
    font-size: 0.7rem;
  }

  .admin-toggle-btn span {
    display: none;
  }

  .admin-dropdown-content {
    min-width: 140px;
  }
}

@media (max-width: 480px) {
  .nav {
    gap: 2px;
  }

  .nav-btn {
    padding: 3px 5px;
  }

  .theme-btn {
    width: 28px;
    height: 28px;
    padding: 4px;
  }

  .theme-btn .btn-icon {
    width: 14px;
    height: 14px;
  }

  .admin-toggle-btn {
    padding: 3px 5px;
  }
}

/* Animation for button press */
.nav-btn:active {
  transform: scale(0.95);
}

/* Gradient animation on hover */
.nav-btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left 0.5s ease;
}

.nav-btn:hover::before {
  left: 100%;
}