/* =========================================
   1. 기본 설정 & 초기화
   ========================================= */
.site-header {
    background: #fff;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    position: relative;
    z-index: 1000;
    width: 100%;
    height: 70px; /* 헤더 높이 고정 */
}

.header-inner {
    max-width: 1200px;
    margin: 0 auto;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 20px;
}

/* 로고 스타일 */
.logo a {
    font-family: 'Noto Sans KR', sans-serif;
    font-size: 24px;
    font-weight: 800;
    color: #2c3e50;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 8px;
}

.logo i {
    color: #2ecc71; /* 축구공 아이콘 색상 */
}

/* =========================================
   2. 데스크톱 메뉴 (1000px 이상)
   ========================================= */
.desktop-navigation {
    display: block;
    height: 100%;
}

.desktop-menu {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    height: 100%;
    align-items: center;
}

.desktop-menu > li {
    position: relative;
    height: 100%;
    display: flex;
    align-items: center;
}

.desktop-menu > li > a {
    display: block;
    padding: 0 20px;
    font-size: 16px;
    font-weight: 600;
    color: #333;
    text-decoration: none;
    transition: color 0.3s;
}

.desktop-menu > li:hover > a {
    color: #2ecc71;
}

/* 데스크톱 서브메뉴 */
.desktop-menu ul {
    position: absolute;
    top: 70px; /* 헤더 높이만큼 아래로 */
    left: 0;
    background: #fff;
    min-width: 200px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    list-style: none;
    padding: 10px 0;
    margin: 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all 0.3s ease;
    border-radius: 0 0 8px 8px;
}

.desktop-menu li:hover > ul {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.desktop-menu ul li a {
    display: block;
    padding: 12px 20px;
    font-size: 14px;
    color: #555;
    text-decoration: none;
    transition: all 0.2s;
}

.desktop-menu ul li a:hover {
    background: #f8f9fa;
    color: #2ecc71;
    padding-left: 25px;
}

/* =========================================
   3. 모바일 레이아웃 (1000px 이하)
   ========================================= */
.mobile-menu-trigger {
    display: none; /* PC에서는 숨김 */
}

.mobile-menu-overlay {
    display: none; /* PC에서는 숨김 */
}

@media (max-width: 1000px) {
    /* 데스크톱 메뉴 숨김 */
    .desktop-navigation {
        display: none;
    }

    /* 햄버거 버튼 표시 */
    .mobile-menu-trigger {
        display: flex;
        flex-direction: column;
        justify-content: space-between;
        width: 30px;
        height: 20px;
        cursor: pointer;
        z-index: 1001; /* 오버레이보다 낮지만 헤더보단 높음 */
    }

    .mobile-menu-trigger span {
        display: block;
        width: 100%;
        height: 3px;
        background: #333;
        border-radius: 3px;
        transition: all 0.3s;
    }

    /* --------------------------------------
       모바일 메뉴 오버레이 (Side Drawer)
       -------------------------------------- */
    .mobile-menu-overlay {
        display: block;
        position: fixed;
        top: 0;
        right: 0;
        width: 300px; /* 너비 */
        height: 100vh;
        background: #fff;
        z-index: 2000;
        box-shadow: -5px 0 15px rgba(0,0,0,0.1);
        transform: translateX(100%); /* 화면 밖으로 이동 */
        transition: transform 0.3s cubic-bezier(0.77, 0.2, 0.05, 1.0);
        overflow-y: auto;
    }

    /* 메뉴 열렸을 때 */
    .mobile-menu-overlay.active {
        transform: translateX(0); /* 화면 안으로 이동 */
    }

    /* 배경 딤드 처리 (가상요소로) */
    .mobile-background-dim {
        position: fixed;
        top: 0;
        left: 0;
        width: 100vw;
        height: 100vh;
        background: rgba(0,0,0,0.5);
        z-index: 1500;
        display: none;
    }
    .mobile-background-dim.active {
        display: block;
    }

    /* 모바일 메뉴 헤더 (타이틀 + 닫기버튼) */
    .mobile-menu-header {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 20px;
        border-bottom: 1px solid #eee;
        background: #f8f9fa;
    }

    .mobile-menu-title {
        font-size: 18px;
        font-weight: 800;
        color: #333;
    }

    .mobile-menu-close {
        background: none;
        border: none;
        font-size: 28px;
        cursor: pointer;
        color: #555;
        line-height: 1;
    }

    /* 모바일 메뉴 컨텐츠 (클래스 의존성 제거) */
    .mobile-menu-content {
        padding: 20px 0;
    }

    /* 모든 하위 UL 초기화 */
    .mobile-menu-content ul {
        list-style: none;
        padding: 0;
        margin: 0;
        width: 100%;
    }

    /* 1차 메뉴 아이템 */
    .mobile-menu-content > ul > li {
        border-bottom: 1px solid #f1f1f1;
        position: relative; /* 중요: 토글 버튼 위치 기준 */
        display: block;
    }

    .mobile-menu-content > ul > li > a {
        display: block;
        padding: 15px 50px 15px 20px; /* 오른쪽 여백 확보 (버튼 공간) */
        font-size: 16px;
        color: #333;
        text-decoration: none;
        font-weight: 500;
        width: 100%;
        box-sizing: border-box;
    }
    
    .mobile-menu-content > ul > li.active > a {
        color: #2ecc71;
    }

    /* 2차(서브) 메뉴 */
    .mobile-menu-content ul ul {
        display: none; /* 기본 숨김 */
        background: #fafafa;
        border-top: 1px solid #eee;
    }
    
    .mobile-menu-content ul ul.open {
        display: block !important; /* JS로 토글 시 강제 표시 */
    }

    .mobile-menu-content ul ul li {
        position: relative;
        width: 100%;
    }

    .mobile-menu-content ul ul li a {
        padding: 12px 20px 12px 40px; /* 들여쓰기 */
        font-size: 14px;
        color: #666;
    }

    .mobile-menu-content ul ul li a:hover {
        background: #eee;
    }

    /* 서브메뉴 토글 버튼 (화살표/플러스) */
    .mobile-submenu-toggle {
        position: absolute;
        top: 0;
        right: 0;
        width: 50px;
        height: 50px; /* 링크 높이와 동일 */
        display: flex;
        align-items: center;
        justify-content: center;
        cursor: pointer;
        border-left: 1px solid #eee;
        color: #888;
        font-size: 12px;
        background: transparent;
        transition: background 0.2s;
    }
    
    .mobile-submenu-toggle:hover {
        background: #f1f1f1;
        color: #333;
    }

    .mobile-submenu-toggle i {
        transition: transform 0.3s;
    }

    .mobile-submenu-toggle.open i {
        transform: rotate(180deg);
    }
}