* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }

        body {
            background-color: #f0f2f5;
        }

        /* ===================== NAVBAR ===================== */
        .navbar-container {
            width: 100%;
        }

        .navbar {
            background-color: #7c8ab5;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
            overflow: hidden;
            margin-bottom: 0;
        }

        .navbar-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 12px 25px;
            background-color: #7c8ab5;
            border-bottom: 1px solid #e9ecef;
        }

        .faculty-info {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .faculty-name {
            font-size: 18px;
            font-weight: 700;
            color: #fff;
        }

        .institute-logo {
            font-weight: 800;
            font-size: 22px;
            color: #fff;
        }

        /* Main navbar */
        .navbar-main {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 0 25px;
        }

        .nav-menu {
            display: flex;
            list-style: none;
        }

        .nav-item {
            position: relative;
        }

        .nav-link {
            display: block;
            padding: 18px 22px;
            text-decoration: none;
            color: #2d3748;
            font-weight: 600;
            font-size: 15px;
        }

        .nav-link:hover {
            color: #2c5aa0;
            background-color: #f8f9fa;
        }

        .nav-link.active {
            border-bottom: 3px solid #2c5aa0;
            color: #2c5aa0;
        }

        .hamburger-btn {
            display: none;
            background: none;
            border: none;
            font-size: 22px;
            cursor: pointer;
        }




        .massage-box {
            max-width: 420px;
            margin: 20px auto;
            padding: 12px;
            background: #ffe6e6;
            color: #b30000;
            border: 1px solid #ffb3b3;
            border-radius: 8px;
            text-align: center;
            font-size: 15px;
        }

        .massage-box-berhasil {
            max-width: 420px;
            margin: 20px auto;
            padding: 12px;
            background: #ddffd9ff;
            color: #1ac204ff;
            border: 1px solid #bdffb5ff;
            border-radius: 8px;
            text-align: center;
            font-size: 15px;
        }

        .register-container {
            max-width: 420px;
            margin: 40px auto;
            background: white;
             padding: 30px;
            border-radius: 15px;
            box-shadow: 0 8px 20px rgba(0,0,0,0.15);
        }

        .register-container h2 {
            text-align: center;
            margin-bottom: 25px;
            color: #283e51;
        }

        .register-input {
            width: 100%;
            padding: 12px;
            border: 1px solid #ccc;
            border-radius: 10px;
            font-size: 15px;
            outline: none;
            transition: .3s;
            margin-bottom: 18px;
        }

        .register-input:focus {
            border-color: #4b79a1;
            box-shadow: 0 0 5px rgba(75,121,161,0.5);
        }

        .register-btn {
            width: 100%;
            padding: 12px;
            background: #4b79a1;
            border: none;
            color: white;
            font-size: 16px;
            border-radius: 10px;
            cursor: pointer;
            transition: .3s;
        }

        .register-btn:hover {
            background: #35516b;
        }

        .register-note {
            margin-top: 20px;
            background: #f1f5f9;
            border-left: 4px solid #4b79a1;
            padding: 14px 16px;
            border-radius: 10px;
            font-size: 14px;
            color: #2d3748;
            line-height: 1.6;
        }



        /* ===================== FOOTER ===================== */
        .footer {
            background-color: #0d0d0d;
            color: #fff;
            padding: 50px 20px 20px;
            margin-top: 0;
        }

        .footer-container {
            max-width: 1200px;
            margin: auto;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 40px;
        }

        .footer-column {
            width: 30%;
            min-width: 250px;
            line-height: 1.8;
        }

        .footer-title {
            font-size: 20px;
            font-weight: bold;
            margin-bottom: 15px;
        }

        .footer-social {
            display: flex;
            flex-direction: column;
            gap: 10px;
            margin-top: 10px;
        }

        .social-btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 10px 16px;
            background-color: #1a1a1a;
            color: white;
            text-decoration: none;
            border-radius: 6px;
            transition: 0.3s;
            font-size: 15px;
            width: fit-content;
        }

        .social-btn:hover {
            background-color: #333;
        }

        .social-btn.whatsapp {
            background-color: #25D366;
        }

        .social-btn.facebook {
            background-color: #3b5998;
        }

        .social-btn.instagram {
            background-color: #405DE6;
        }

        .footer-bottom {
            background-color: #373334;
            text-align: center;
            padding: 12px;
            margin-top: 40px;
            font-size: 14px;
        }

        @media (max-width: 768px) {
            .footer-container {
                flex-direction: column;
                text-align: center;
            }

            .footer-column {
                width: 100%;
            }

            .social-btn {
                margin: auto;
            }
        }