/*
* PC Header CSS ==============================================================================================
*/

        /* 기본 스타일 초기화 */
        * { margin: 0; padding: 0; box-sizing: border-box; }
        body { font-family: 'Malgun Gothic', sans-serif; background-color: #f5f6f9; color: #333; }
        a { text-shadow: none; text-decoration: none; color: inherit; }

        /* 1. 최상단 회사 배너 영역 */
        .company-banner {
            width: 100%;
            height: 120px;
            background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%); /* 비즈니스 블루 그라데이션 */
            color: white;
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 0 50px;
        }
        .logo-text { font-size: 28px; font-weight: bold; letter-spacing: -1px; }
        .user-info { font-size: 14px; background: rgba(255,255,255,0.1); padding: 8px 15px; border-radius: 20px; }
        .user-info strong { color: #f1c40f; }

        /* 2. 네비게이션 메뉴 영역 */
        .nav-menu {
            width: 100%;
            background-color: #ffffff;
            box-shadow: 0 4px 6px rgba(0,0,0,0.05);
            border-bottom: 1px solid #e1e4e8;
            position: sticky;
            top: 0;
            z-index: 100;
        }
        .nav-container {
            max-width: 1200px;
            margin: 0 auto;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .menu-list { display: flex; list-style: none; }
        .menu-item a {
            display: block;
            padding: 20px 30px;
            font-size: 16px;
            font-weight: 600;
            color: #4a5568;
            transition: all 0.2s ease;
        }
        .menu-item a:hover { color: #2a5298; background-color: #f8fafc; border-bottom: 3px solid #2a5298; padding-bottom: 17px; }
        
        /* 로그아웃 버튼 스타일 */
        .btn-logout { background-color: #e53e3e; color: white !important; padding: 8px 16px; border-radius: 4px; font-size: 14px; margin-right: 20px; }
        .btn-logout:hover { background-color: #c53030; }

        /* 3. 본문 콘텐츠 영역 */
        .main-content { max-width: 1200px; margin: 40px auto; padding: 0 20px; }
        .content-card { background: white; padding: 40px; border-radius: 8px; box-shadow: 0 4px 12px rgba(0,0,0,0.05); min-height: 400px; }
        .content-card h2 { margin-bottom: 20px; color: #1a202c; }

/*
* MOBILE Header CSS ==============================================================================================
*/

                /* 1. 상단 헤더 영역 (회사 로고 + 햄버거 버튼) */
        .mobile-header {
            width: 100%;
            height: 60px;
            background-color: #1e3c72;
            color: white;
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 0 20px;
            position: sticky;
            top: 0;
            z-index: 90;
        }
        .logo-text_mobile { font-size: 18px; font-weight: bold; }
        
        /* 햄버거 버튼 디자인 */
        .hamburger-btn {
            font-size: 24px;
            background: none;
            border: none;
            color: white;
            cursor: pointer;
            padding: 5px;
        }

        /* 2. 슬라이드 메뉴 (기본 상태: 오른쪽 화면 밖에 숨김) */
        .side-menu {
            position: fixed;
            top: 0;
            right: -280px; /* 메뉴 너비만큼 오른쪽으로 숨김 */
            width: 280px;
            height: 100%;
            background-color: #ffffff;
            box-shadow: -4px 0 10px rgba(0,0,0,0.1);
            z-index: 100;
            transition: right 0.3s ease; /* 부드러운 슬라이드 애니메이션 */
            padding: 20px;
        }
        /* 활성화 상태 (JS로 클래스 추가 예정) */
        .side-menu.active { right: 0; }

        /* 메뉴 내부 헤더 (닫기 버튼) */
        .menu-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 30px;
            padding-bottom: 15px;
            border-bottom: 1px solid #e2e8f0;
        }
        .user-welcome { font-size: 14px; font-weight: bold; color: #4a5568; }
        .close-btn { font-size: 24px; background: none; border: none; color: #718096; cursor: pointer; }

        /* 메뉴 목록 */
        .menu-list_mobile { list-style: none; }
        .menu-item_mobile a {
            display: block;
            padding: 15px 10px;
            font-size: 16px;
            font-weight: 600;
            color: #2d3748;
            border-bottom: 1px solid #edf2f7;
        }
        .menu-item_mobile a:active { background-color: #f7fafc; color: #1e3c72; }

        /* 로그아웃 버튼 */
        .btn-logout_mobile {
            display: block;
            width: 100%;
            text-align: center;
            background-color: #e53e3e;
            color: white !important;
            padding: 12px 0;
            border-radius: 6px;
            font-size: 15px;
            margin-top: 30px;
            font-weight: bold;
        }

        /* 3. 메뉴가 열렸을 때 뒷배경 어둡게 처리 (딤 스크린) */
        .overlay {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-color: rgba(0,0,0,0.4);
            z-index: 95;
            display: none;
        }
        .overlay.active { display: block; }

        /* 4. 본문 영역 */
        .main-content_mobile { padding: 20px; }
        .content-card_mobile { background: white; padding: 25px; border-radius: 8px; box-shadow: 0 2px 5px rgba(0,0,0,0.05); }
        .content-card_mobile h2 { font-size: 20px; margin-bottom: 10px; color: #1a202c; }
        .content-card_mobile p { font-size: 14px; color: #718096; line-height: 1.5; }