#main-navbar {
    --primary-gradient-start: #2c3e50;
    --primary-gradient-end: #3498db;
    --text-light: #f8f9fa;
    --text-light-hover: #ffffff;
    --text-dark: #212529;
    --hover-bg: rgba(248, 249, 250, 0.15);
    --active-bg: rgba(248, 249, 250, 0.25);
    --shadow-light: 0 4px 20px rgba(0, 0, 0, 0.15);
    --status-running: #28a745;
    --status-error: #dc3545;
    --status-normal: #6c757d;

    /* 네비게이션 폰트 변수 */
    --nav-font-size: 1.05rem;
    --nav-font-weight: 500;
    --nav-line-height: 1.2;
    --nav-padding: 0.5rem 0.7rem;
    --nav-border-radius: 8px;
    --nav-transition: all 0.3s ease;
}

body {
    font-family: 'Segoe UI', '맑은 고딕', 'Apple SD 산돌고딕 Neo', sans-serif;
    background-color: #f8f9fa;
}

/* 내비게이션 바 기본 스타일 */
#main-navbar {
    background: linear-gradient(135deg, var(--primary-gradient-start) 0%, var(--primary-gradient-end) 100%);
    box-shadow: var(--shadow-light);
    padding: 0.75rem 0.8rem;
    min-height: 70px;
    display: flex;
    align-items: center;
}

#main-navbar .navbar-brand {
    color: var(--text-light) !important;
    font-size: 1.8rem;
    font-weight: 700;
    letter-spacing: -0.5px;
    transition: color 0.3s ease;
}

#main-navbar .navbar-brand:hover {
    color: white !important;
}

/* 공통 네비게이션 링크 스타일 */
#main-navbar .nav-link-base {
    color: #E0E0E0 !important;
    font-size: var(--nav-font-size) !important;
    font-weight: var(--nav-font-weight) !important;
    line-height: var(--nav-line-height) !important;
    padding: var(--nav-padding) !important;
    border-radius: var(--nav-border-radius);
    transition: var(--nav-transition);
    display: flex;
    align-items: center;
    gap: 0.4rem;
    height: 100%;
    text-decoration: none !important;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 150px;
}

/* 실제 적용 (CSS는 @extend를 지원하지 않으므로 직접 적용) */
#main-navbar .navbar-nav .nav-item .nav-link,
#main-navbar .nav-link,
#main-navbar .fee-main-link,
#main-navbar .system-main-link {
    color: #E0E0E0 !important;
    font-size: var(--nav-font-size) !important;
    font-weight: var(--nav-font-weight) !important;
    line-height: var(--nav-line-height) !important;
    padding: var(--nav-padding) !important;
    border-radius: var(--nav-border-radius);
    transition: var(--nav-transition);
    display: flex;
    align-items: center;
    gap: 0.4rem;
    height: 100%;
    text-decoration: none !important;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 150px;
}

/* 호버 상태 공통 */
#main-navbar .nav-link:hover,
#main-navbar .fee-main-link:hover,
#main-navbar .system-main-link:hover,
#main-navbar .nav-item.dropdown .nav-link:hover {
    background-color: var(--hover-bg);
    color: var(--text-light-hover) !important;
    transform: translateY(-2px);
    font-size: var(--nav-font-size) !important;
    text-decoration: none !important;
}

/* 활성 상태 공통 */
#main-navbar .nav-link.active,
#main-navbar .nav-item.dropdown .nav-link.active {
    background-color: var(--active-bg);
    color: var(--text-light-hover) !important;
    font-weight: 600 !important;
    font-size: var(--nav-font-size) !important;
}

#main-navbar .nav-link:active {
    font-size: var(--nav-font-size) !important;
    transform: translateY(0);
}

/* nav-item 간격 */
#main-navbar .nav-item {
    margin: 0 0.02rem;
    white-space: nowrap;
}

/* 수임료 관리 분할 드롭다운 스타일 */
#main-navbar .split-dropdown-nav-item.nav-item {
    display: flex;
    align-items: center;
    padding: 0 !important;
    border-radius: var(--nav-border-radius);
    transition: var(--nav-transition);
}

#main-navbar .split-dropdown-nav-item.nav-item:hover {
    background-color: var(--hover-bg);
    transform: translateY(-2px);
}

#main-navbar .split-dropdown-nav-item.nav-item.active {
    background-color: var(--active-bg);
}

#main-navbar .split-dropdown-nav-item.nav-item>a.nav-link {
    background: transparent !important;
    transform: none !important;
    box-shadow: none !important;
    height: 100%;
    padding-top: var(--nav-padding);
    padding-bottom: var(--nav-padding);
}

#main-navbar .split-dropdown-nav-item.nav-item.active>a.nav-link {
    color: var(--text-light-hover) !important;
    font-weight: 600 !important;
}

#main-navbar .split-dropdown-nav-item.nav-item>a.nav-link:not(.dropdown-toggle) {
    padding-left: var(--nav-padding);
    padding-right: 0.1rem !important;
    /* 오른쪽 패딩 줄임 */
}

#main-navbar .split-dropdown-nav-item.nav-item>a.dropdown-toggle {
    padding-left: 0.1rem !important;
    /* 왼쪽 패딩 줄임 */
    padding-right: var(--nav-padding);
}


#main-navbar .navbar-nav {
    gap: 0.02rem;
}

/* 버튼 공통 스타일 */
#main-navbar .btn-login,
#main-navbar .btn-signup {
    font-weight: 600;
    padding: 0.5rem 1.2rem;
    border-radius: 25px;
    transition: all 0.3s ease;
    margin-left: 0.5rem;
}

#main-navbar .btn-login {
    background-color: rgba(255, 255, 255, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.3);
    color: white !important;
}

#main-navbar .btn-login:hover {
    background-color: rgba(255, 255, 255, 0.3);
    border-color: white;
}

#main-navbar .btn-signup,
#main-navbar .btn-search {
    background-color: white;
    color: var(--primary-gradient-end) !important;
    border: 1px solid white;
}

#main-navbar .btn-signup:hover,
#main-navbar .btn-search:hover {
    background-color: #e2e6ea;
    color: var(--primary-gradient-start) !important;
}

/* 드롭다운 공통 스타일 */
#main-navbar .dropdown-menu {
    background-color: #ffffff;
    border: none;
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.2);
    border-radius: 8px;
    padding: 0.5rem 0;
    animation: fadeIn 0.3s ease-out;
    overflow-y: auto;
    max-height: 80vh;
    margin-top: 0.5rem;
    z-index: 100081 !important;
    /* 다른 요소 위에 표시되도록 z-index 추가 (기존 1050) */
}

#main-navbar .dropdown-menu.show,
#main-navbar .system-dropdown.show {
    display: block;
}

#main-navbar .dropdown-item {
    color: var(--text-dark) !important;
    font-size: var(--dropdown-font-size) !important;
    padding: 0.6rem 1.2rem;
    transition: background-color 0.2s ease, color 0.2s ease;
    display: flex;
    align-items: center;
    gap: 0.6rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 200px;
}

#main-navbar .dropdown-item:hover,
#main-navbar .dropdown-item:active {
    background-color: #e9ecef;
    color: var(--primary-gradient-end) !important;
}

#main-navbar .dropdown-divider {
    margin: 0.5rem 0;
    border-top: 1px solid #e0e0e0;
}

/* 드롭다운 토글 버튼 공통 */
#main-navbar .fee-dropdown-toggle,
#main-navbar .system-dropdown-toggle {
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    border-radius: 4px;
}

#main-navbar .fee-dropdown-toggle:hover,
#main-navbar .system-dropdown-toggle:hover {
    background-color: rgba(255, 255, 255, 0.2);
    transform: scale(1.1);
}

/* 시스템 드롭다운 특별 설정 */
#main-navbar .system-dropdown {
    min-width: 220px;
    right: 0;
    left: auto;
    z-index: 9999;
}

#main-navbar .system-main-link {
    cursor: pointer;
}

/* 파이썬 상태 표시기 */
#main-navbar #pythonStatus {
    font-size: 0.85rem;
    white-space: nowrap;
    border-radius: 20px;
    padding: 0.4rem 0.9rem;
    color: white;
    font-weight: 500;
    box-shadow: 0 2px 5px rgba(139, 137, 137, 0.2);
    margin-right: 1rem;
    transition: background-color 0.3s ease;
}

#main-navbar .status-running {
    background-color: var(--status-running);
}

#main-navbar .status-error {
    background-color: var(--status-error);
}

#main-navbar .status-normal {
    background-color: var(--status-normal);
}

/* 검색 바 */
#main-navbar .form-control-search {
    border-radius: 25px;
    border: 1px solid rgba(255, 255, 255, 0.4);
    background-color: rgba(255, 255, 255, 0.1);
    color: white;
    transition: all 0.3s ease;
}

#main-navbar .form-control-search::placeholder {
    color: rgba(255, 255, 255, 0.7);
}

#main-navbar .form-control-search:focus {
    background-color: rgba(255, 255, 255, 0.2);
    border-color: white;
    box-shadow: 0 0 0 0.25rem rgba(255, 255, 255, 0.25);
    color: white;
}

#main-navbar .btn-search {
    border: none;
    border-radius: 25px;
    margin-left: 0px;
    z-index: 10;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* 유틸리티 컨테이너 */
#main-navbar .navbar-utilities {
    display: flex;
    align-items: center;
    gap: 1rem;
}

/* 드롭다운 애니메이션 */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 모바일 반응형 */
@media (max-width: 768px) {
    #main-navbar .navbar-utilities {
        flex-direction: column;
        gap: 0.5rem;
        width: 100%;
    }

    #main-navbar #pythonStatus {
        font-size: 0.75rem;
        padding: 0.3rem 0.7rem;
        margin-right: 0;
        text-align: center;
    }

    #main-navbar .form-control-search {
        width: 100%;
        margin-top: 0.5rem;
    }
}