/*=============================================
 * 부천고등학교 총동문회 - 네비게이션 스타일
 * 디자인: 클래식/격조 있는 스타일
 * 색상: 네이비/골드 테마
 *=============================================*/

/* ===== 상단 유틸리티 바 ===== */
.top-utility-bar {
    background-color: var(--color-navy-dark);
    padding: 8px 0;
    font-size: 13px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.top-utility-bar .welcome-text {
    color: var(--color-gray-300);
    font-size: 12px;
}

.top-utility-bar .welcome-text i {
    color: var(--color-gold);
    margin-right: 5px;
}

.top-utility-bar .utility-menu {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    gap: 5px;
}

.top-utility-bar .utility-menu li {
    display: flex;
    align-items: center;
}

.top-utility-bar .utility-menu li:not(:last-child)::after {
    content: '|';
    margin-left: 10px;
    color: var(--color-gray-500);
}

.top-utility-bar .utility-menu a {
    color: var(--color-gray-300);
    text-decoration: none;
    transition: color var(--transition-fast);
    padding: 3px 5px;
}

.top-utility-bar .utility-menu a:hover {
    color: var(--color-gold);
}

/* 관리자 링크 강조 스타일 */
.top-utility-bar .utility-menu a.admin-link {
    color: #ffc107 !important;
    font-weight: 600;
}

.top-utility-bar .utility-menu a.admin-link:hover {
    color: #ffda6a !important;
}

.top-utility-bar .user-name {
    color: var(--color-gold);
    font-weight: 500;
}

/* ===== 메인 네비게이션 바 ===== */
.bhs-navbar {
    background-color: var(--color-navy);
    padding: 0;
    min-height: var(--navbar-height);
    box-shadow: var(--shadow-navbar);
    position: sticky;
    top: 0;
    z-index: var(--z-fixed);
    transition: all var(--transition-normal);
}

/* 스크롤 시 네비게이션 효과 */
.bhs-navbar.navbar-scrolled {
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
}

/* ===== 로고 영역 ===== */
.bhs-navbar .navbar-brand {
    display: flex;
    align-items: center;
    padding: 15px 0;
    text-decoration: none;
}

.bhs-navbar .logo-img {
    height: 55px;
    width: auto;
    margin-right: 15px;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.2));
}

.bhs-navbar .logo-text-wrap {
    display: flex;
    flex-direction: column;
    line-height: 1.2;
}

.bhs-navbar .logo-text-main {
    font-family: var(--font-heading);
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--color-white);
    letter-spacing: -0.5px;
}

.bhs-navbar .logo-text-sub {
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 400;
    color: var(--color-gold);
    letter-spacing: 2px;
}

/* ===== 메인 메뉴 항목 ===== */
.bhs-navbar .navbar-nav {
    gap: 5px;
}

.bhs-navbar .nav-link {
    font-family: var(--font-body);
    font-size: 15px;
    font-weight: 500;
    color: var(--color-white);
    padding: 28px 18px;
    position: relative;
    transition: all var(--transition-normal);
    white-space: nowrap;
}

.bhs-navbar .nav-link:hover,
.bhs-navbar .nav-link:focus {
    color: var(--color-gold);
}

/* 메뉴 하단 골드 라인 효과 */
.bhs-navbar .nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 3px;
    background-color: var(--color-gold);
    transition: all var(--transition-normal);
    transform: translateX(-50%);
}

.bhs-navbar .nav-link:hover::after,
.bhs-navbar .nav-item.show .nav-link::after {
    width: 80%;
}

/* 현재 활성 메뉴 */
.bhs-navbar .nav-item.active .nav-link {
    color: var(--color-gold);
}

.bhs-navbar .nav-item.active .nav-link::after {
    width: 80%;
}

/* 드롭다운 화살표 커스터마이징 */
.bhs-navbar .dropdown-toggle::after {
    border: none;
    content: '\F282';  /* Bootstrap Icons chevron-down */
    font-family: 'bootstrap-icons';
    font-size: 10px;
    margin-left: 6px;
    vertical-align: middle;
    transition: transform var(--transition-fast);
}

.bhs-navbar .nav-item.show .dropdown-toggle::after {
    transform: rotate(180deg);
}

/* ===== 드롭다운 메뉴 ===== */
.bhs-navbar .dropdown-menu {
    background-color: var(--color-white);
    border: none;
    border-radius: 0 0 var(--radius-sm) var(--radius-sm);
    box-shadow: var(--shadow-dropdown);
    padding: 15px 0;
    min-width: 240px;
    margin-top: 0;
    border-top: 3px solid var(--color-gold);
    animation: fadeInDown 0.3s ease;
}

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

/* ===== 드롭다운 아이템 ===== */
.bhs-navbar .dropdown-item {
    font-family: var(--font-body);
    font-size: 14px;
    color: var(--color-gray-700);
    padding: 12px 25px;
    position: relative;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
}

.bhs-navbar .dropdown-item i {
    width: 24px;
    color: var(--color-navy);
    margin-right: 10px;
    font-size: 15px;
    transition: color var(--transition-fast);
}

.bhs-navbar .dropdown-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    width: 0;
    height: 100%;
    background-color: var(--color-gold);
    transition: width var(--transition-fast);
}

.bhs-navbar .dropdown-item:hover,
.bhs-navbar .dropdown-item:focus {
    background-color: var(--color-gold-pale);
    color: var(--color-navy);
    padding-left: 30px;
}

.bhs-navbar .dropdown-item:hover::before {
    width: 4px;
}

.bhs-navbar .dropdown-item:hover i {
    color: var(--color-gold-dark);
}

.bhs-navbar .dropdown-item:active {
    background-color: var(--color-gold-light);
}

/* 마지막 메뉴 드롭다운 오른쪽 정렬 */
.bhs-navbar .dropdown-menu-end {
    right: 0;
    left: auto;
}

/* ===== 골드 버튼 ===== */
.btn-gold {
    background: linear-gradient(135deg, var(--color-gold) 0%, var(--color-gold-dark) 100%);
    color: var(--color-navy-dark);
    border: none;
    font-weight: 600;
    font-size: 14px;
    padding: 10px 20px;
    border-radius: var(--radius-sm);
    transition: all var(--transition-normal);
    display: inline-flex;
    align-items: center;
    gap: 6px;
    text-decoration: none;
}

.btn-gold:hover {
    background: linear-gradient(135deg, var(--color-gold-dark) 0%, var(--color-gold) 100%);
    color: var(--color-white);
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(201, 162, 39, 0.4);
}

.btn-gold:focus {
    box-shadow: 0 0 0 3px rgba(201, 162, 39, 0.3);
    outline: none;
}

.btn-gold:active {
    transform: translateY(0);
}

/* 네이비 버튼 (아웃라인) */
.btn-navy-outline {
    background: transparent;
    color: var(--color-gold);
    border: 2px solid var(--color-gold);
    font-weight: 600;
    font-size: 14px;
    padding: 8px 18px;
    border-radius: var(--radius-sm);
    transition: all var(--transition-normal);
    display: inline-flex;
    align-items: center;
    gap: 6px;
    text-decoration: none;
}

.btn-navy-outline:hover {
    background: var(--color-gold);
    color: var(--color-navy-dark);
}

/* ===== 햄버거 메뉴 아이콘 ===== */
.bhs-navbar .navbar-toggler {
    border: 2px solid var(--color-gold);
    padding: 8px 12px;
    transition: all var(--transition-fast);
}

.bhs-navbar .navbar-toggler:hover {
    background-color: rgba(201, 162, 39, 0.1);
}

.bhs-navbar .navbar-toggler:focus {
    box-shadow: 0 0 0 3px rgba(201, 162, 39, 0.3);
    outline: none;
}

.bhs-navbar .navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='%23c9a227' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
    width: 24px;
    height: 24px;
}

/* ===== Quick Buttons 영역 ===== */
.quick-buttons {
    gap: 10px;
}

/* ===== Skip Navigation (접근성) ===== */
.skip-nav {
    position: absolute;
    top: -100%;
    left: 50%;
    transform: translateX(-50%);
    background: var(--color-gold);
    color: var(--color-navy-dark);
    padding: 10px 20px;
    text-decoration: none;
    font-weight: 600;
    z-index: 9999;
    transition: top var(--transition-fast);
}

.skip-nav:focus {
    top: 10px;
}

/* ===== 모바일 반응형 (992px 미만) ===== */
@media (max-width: 991.98px) {
    /* 상단 유틸리티 바 숨김 */
    .top-utility-bar {
        display: none;
    }

    /* 네비게이션 바 */
    .bhs-navbar {
        padding: 10px 0;
    }

    /* 로고 크기 축소 */
    .bhs-navbar .logo-img {
        height: 40px;
    }

    .bhs-navbar .logo-text-main {
        font-size: 1.1rem;
    }

    .bhs-navbar .logo-text-sub {
        font-size: 0.85rem;
    }

    /* 모바일 메뉴 영역 */
    .bhs-navbar .navbar-collapse {
        background-color: var(--color-navy);
        margin: 15px -12px -12px;
        padding: 0;
        border-top: 1px solid rgba(255, 255, 255, 0.1);
        max-height: calc(100vh - 80px);
        overflow-y: auto;
    }

    .bhs-navbar .navbar-nav {
        padding: 10px 0;
        gap: 0;
    }

    /* 모바일 메뉴 항목 */
    .bhs-navbar .nav-item {
        border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    }

    .bhs-navbar .nav-link {
        padding: 15px 20px;
        display: flex;
        justify-content: space-between;
        align-items: center;
    }

    /* 모바일에서 하단 골드 라인 제거 */
    .bhs-navbar .nav-link::after {
        display: none;
    }

    /* 드롭다운 화살표 재설정 (모바일용) */
    .bhs-navbar .dropdown-toggle::after {
        content: '\F282';  /* chevron-down */
        font-family: 'bootstrap-icons';
        font-size: 14px;
        margin-left: auto;
        transition: transform var(--transition-fast);
    }

    .bhs-navbar .nav-item.show .dropdown-toggle::after {
        transform: rotate(180deg);
    }

    /* 모바일 드롭다운 메뉴 */
    .bhs-navbar .dropdown-menu {
        position: static !important;
        transform: none !important;
        background-color: rgba(0, 0, 0, 0.2);
        border: none;
        border-radius: 0;
        box-shadow: none;
        border-top: none;
        padding: 0;
        margin: 0;
        animation: none;
        display: none;
    }

    /* 서브메뉴 열림 상태 */
    .bhs-navbar .dropdown-menu.show {
        display: block;
    }

    /* 모바일 드롭다운 아이템 */
    .bhs-navbar .dropdown-item {
        color: var(--color-gray-300);
        padding: 12px 20px 12px 40px;
        border-bottom: 1px solid rgba(255, 255, 255, 0.03);
    }

    .bhs-navbar .dropdown-item i {
        color: var(--color-gold);
        margin-right: 12px;
    }

    .bhs-navbar .dropdown-item::before {
        display: none;
    }

    .bhs-navbar .dropdown-item:hover,
    .bhs-navbar .dropdown-item:focus {
        background-color: rgba(201, 162, 39, 0.1);
        color: var(--color-gold);
        padding-left: 45px;
    }

    .bhs-navbar .dropdown-item:hover i {
        color: var(--color-gold);
    }

    /* 모바일 동문가입 버튼 */
    .bhs-navbar .navbar-collapse .btn-gold {
        margin: 15px 20px;
        display: flex;
        justify-content: center;
    }
}

/* ===== 초소형 모바일 (576px 미만) ===== */
@media (max-width: 575.98px) {
    .bhs-navbar .logo-img {
        height: 35px;
        margin-right: 10px;
    }

    .bhs-navbar .logo-text-main {
        font-size: 1rem;
    }

    .bhs-navbar .logo-text-sub {
        font-size: 0.75rem;
        letter-spacing: 1px;
    }

    .bhs-navbar .navbar-toggler {
        padding: 6px 10px;
    }

    .bhs-navbar .navbar-toggler-icon {
        width: 20px;
        height: 20px;
    }
}

/* ===== 2단계 서브메뉴 (데스크탑) ===== */
@media (min-width: 992px) {
    /* 서브메뉴 컨테이너 */
    .bhs-navbar .dropdown-submenu {
        position: relative;
    }

    /* 서브메뉴 토글 아이템 */
    .bhs-navbar .dropdown-toggle-sub {
        display: flex;
        justify-content: space-between;
        align-items: center;
    }

    /* 서브메뉴 화살표 */
    .bhs-navbar .submenu-arrow {
        margin-left: auto;
        font-size: 10px;
        transition: transform var(--transition-fast);
    }

    /* 2단계 드롭다운 메뉴 */
    .bhs-navbar .dropdown-submenu-menu {
        position: absolute;
        left: 100%;
        top: 0;
        min-width: 220px;
        display: none;
        opacity: 0;
        visibility: hidden;
        transform: translateX(10px);
        transition: all 0.2s ease;
        border-radius: var(--radius-sm);
        margin-left: 0;
        border-top: 3px solid var(--color-gold);
    }

    /* 호버 시 2단계 메뉴 표시 */
    .bhs-navbar .dropdown-submenu:hover > .dropdown-submenu-menu {
        display: block;
        opacity: 1;
        visibility: visible;
        transform: translateX(0);
    }

    /* 호버 시 화살표 애니메이션 */
    .bhs-navbar .dropdown-submenu:hover > .dropdown-toggle-sub .submenu-arrow {
        transform: translateX(3px);
    }

    /* 서브메뉴 부모 아이템 호버 스타일 */
    .bhs-navbar .dropdown-submenu:hover > .dropdown-toggle-sub {
        background-color: var(--color-gold-pale);
        color: var(--color-navy);
        padding-left: 30px;
    }

    .bhs-navbar .dropdown-submenu:hover > .dropdown-toggle-sub::before {
        width: 4px;
    }

    .bhs-navbar .dropdown-submenu:hover > .dropdown-toggle-sub i:first-child {
        color: var(--color-gold-dark);
    }
}

/* ===== 2단계 서브메뉴 (모바일) ===== */
@media (max-width: 991.98px) {
    /* 모바일에서 서브메뉴 화살표 */
    .bhs-navbar .submenu-arrow {
        display: inline-block;
        margin-left: auto;
        font-size: 12px;
        transition: transform var(--transition-fast);
    }

    /* 모바일에서 2단계 메뉴 기본 숨김 */
    .bhs-navbar .dropdown-submenu-menu {
        display: none;
        background-color: rgba(0, 0, 0, 0.3);
        margin: 0;
        padding: 0;
        border: none;
        border-radius: 0;
        box-shadow: none;
    }

    /* 모바일에서 2단계 메뉴 열림 */
    .bhs-navbar .dropdown-submenu.open > .dropdown-submenu-menu {
        display: block;
    }

    /* 모바일에서 화살표 회전 */
    .bhs-navbar .dropdown-submenu.open > .dropdown-toggle-sub .submenu-arrow {
        transform: rotate(90deg);
    }

    /* 모바일 2단계 아이템 스타일 */
    .bhs-navbar .dropdown-submenu-menu .dropdown-item {
        padding-left: 60px;
        font-size: 13px;
    }

    .bhs-navbar .dropdown-submenu-menu .dropdown-item:hover {
        padding-left: 65px;
    }

    /* 구분선 스타일 */
    .bhs-navbar .dropdown-divider {
        border-color: rgba(255, 255, 255, 0.1);
        margin: 5px 0;
    }
}