/* Custom CSS yang tidak bertentangan dengan Bootstrap */
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            padding-top: 100px; /* Memberi ruang untuk navbar fixed */
            background-color: #5F9EA0;
            color: #333;
            line-height: 1.6;
        }

        /* Tingkat pertama navbar - Custom */
        .navbar-tier-1 {
            background-color: #2c3e50;
            color: white;
            padding: 10px 0;
        }

        .navbar-tier-1 .container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .logo {
            display: flex;
            align-items: center;
            font-size: 1.8rem;
            font-weight: 700;
            color: white;
            text-decoration: none;
        }

        .logo-icon {
            margin-right: 10px;
            font-size: 2rem;
            color: #3498db;
        }

        /* Bagian media sosial - Custom */
        .social-media {
            display: flex;
            align-items: center;
            gap: 15px;
        }

        .social-link {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background-color: rgba(255, 255, 255, 0.1);
            color: white;
            text-decoration: none;
            transition: all 0.3s ease;
        }

        .social-link:hover {
            background-color: white;
            transform: translateY(-2px);
        }

        /* Warna khusus untuk setiap media sosial */
        .social-link.instagram:hover {
            color: #e4405f;
            box-shadow: 0 4px 8px rgba(228, 64, 95, 0.3);
        }

        .social-link.youtube:hover {
            color: #ff0000;
            box-shadow: 0 4px 8px rgba(255, 0, 0, 0.3);
        }

        .social-link.linkedin:hover {
            color: #0a66c2;
            box-shadow: 0 4px 8px rgba(10, 102, 194, 0.3);
        }

        /* Tooltip untuk media sosial */
        .social-link .tooltip {
            position: absolute;
            top: 100%;
            left: 50%;
            transform: translateX(-50%);
            background-color: #333;
            color: white;
            padding: 5px 10px;
            border-radius: 4px;
            font-size: 0.8rem;
            white-space: nowrap;
            opacity: 0;
            visibility: hidden;
            transition: opacity 0.3s;
            margin-top: 5px;
            z-index: 1000;
        }

        .social-link:hover .tooltip {
            opacity: 1;
            visibility: visible;
        }

        /* Tingkat kedua navbar - Menggunakan Bootstrap */
        .navbar-tier-2 {
            background-color: #DCDCDC;
            border-bottom: 1px solid #eaeaea;
        }

        /* Custom styling untuk navbar tier 2 */
        .navbar-tier-2 .navbar-nav .nav-link {
            color: #2c3e50;
            font-weight: 600;
            font-size: 1rem;
            padding: 8px 15px;
            transition: color 0.3s;
        }

        .navbar-tier-2 .navbar-nav .nav-link:hover {
            color: #3498db;
        }

        .navbar-tier-2 .navbar-nav .nav-link.active {
            color: #3498db;
        }

        /* Dropdown menu custom */
        .navbar-tier-2 .dropdown-menu {
            border: none;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
            border-radius: 4px;
            padding: 0;
            margin-top: 5px;
        }

        .navbar-tier-2 .dropdown-item {
            padding: 10px 15px;
            border-bottom: 1px solid #f0f0f0;
            color: #555;
            font-weight: 500;
        }

        .navbar-tier-2 .dropdown-item:last-child {
            border-bottom: none;
        }

        .navbar-tier-2 .dropdown-item:hover {
            background-color: #f8f9fa;
            color: #3498db;
        }

        /* Special buttons */
        .special-buttons {
            display: flex;
            align-items: center;
            gap: 15px;
        }

        .special-buttons .nav-link {
            color: #2c3e50;
            font-weight: 600;
            padding: 8px 15px;
            border-radius: 4px;
        }

        .special-buttons .nav-link:hover {
            color: #3498db;
            background-color: #f8f9fa;
        }

        /* Konten halaman untuk demo */
        .content {
            padding: 30px 0;
        }

        .content-section {
            background-color: white;
            padding: 30px;
            margin-bottom: 30px;
            border-radius: 8px;
            box-shadow: 0 3px 10px rgba(0, 0, 0, 0.05);
        }

        /* Responsif */
        @media (max-width: 992px) {
            .social-media {
                gap: 10px;
            }
        }

        @media (max-width: 768px) {
            body {
                padding-top: 160px;
            }

            .navbar-tier-1 .container {
                flex-wrap: wrap;
            }

            .logo {
                order: 1;
                margin-right: 15px;
            }

            .social-media {
                order: 2;
                margin-left: auto;
            }

            /* Mobile menu styling */
            .navbar-tier-2 .navbar-collapse {
                background-color: white;
                padding: 15px;
                border-radius: 8px;
                box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
                margin-top: 10px;
            }

            .navbar-tier-2 .dropdown-menu {
                box-shadow: none;
                border: 1px solid #eaeaea;
                margin-left: 15px;
            }

            /* Special buttons di mobile */
            .special-buttons {
                flex-direction: column;
                width: 100%;
                margin-top: 15px;
                padding-top: 15px;
                border-top: 1px solid #eaeaea;
            }

            .special-buttons .nav-link,
            .special-buttons .btn {
                width: 100%;
                text-align: center;
                margin-bottom: 10px;
            }
        }

        @media (max-width: 480px) {
            .social-link span {
                display: none;
            }
            
            .social-link {
                width: 32px;
                height: 32px;
            }
            
            .logo {
                font-size: 1.5rem;
            }
            
            .logo-icon {
                font-size: 1.7rem;
            }
        }