/* Blue and white gradient background with subtle fade */
        body {
            /* light semi-transparent white overlay so teks tetap gelap di atas gambar */
            background: linear-gradient(rgba(255,255,255,0.6), rgba(255,255,255,0.9)), url("../img/background.jpeg") center/cover no-repeat fixed;
            color: #0d1b2a;
            font-family: 'Nunito Sans', Arial, sans-serif;
            min-height: 100vh;
            margin: 0;
            padding: 0;
            overflow-x: hidden;
        }

        .navbar,
        .bg-body-tertiary {
            font-weight: bold;
            background-color: transparent !important;
            box-shadow: none !important;
        }

        .container {
            font-weight: bolder;
            text-align: center;
            padding-top: 3rem;
            padding-bottom: 3rem;
            background: transparent; /* hilangkan box */
            border-radius: 0;         /* hapus rounded corners */
            box-shadow: none;         /* hapus shadow */
            margin: 3rem auto 3rem;
            backdrop-filter: none;    /* opsional: matikan blur */
            transition: none;
        }

        .logo {
            width: 140px;
            margin-bottom: 20px;
            filter: drop-shadow(0 2px 6px rgba(0, 0, 0, 0.1));
        }

        .fst-italic {
            font-family: 'Merriweather', serif;
            font-size: 1.2rem;
            color: #1a2e4add;
        }

        h1 {
            font-family: 'Merriweather', serif;
            font-weight: 700;
            color: #0d1b2a;
            margin-bottom: 1.5rem;
            text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.05);
        }

        h6 {
            margin-top: 2.8rem;
            margin-bottom: 1rem;
            font-weight: 700;
            color: #007bff;
            font-family: 'Nunito Sans', sans-serif;
        }

        .btn-custom {
            margin: 10px;
            padding: 14px 28px;
            font-size: 1rem;
            border: none;
            border-radius: 14px;
            transition: transform 0.3s ease-in-out, background-color 0.3s ease;
            display: flex;
            align-items: center;
            gap: 12px;
            font-weight: 700;
            box-shadow: 0 5px 15px rgba(0, 123, 255, 0.3);
            color: #ffffff;
            background-color: #007bff;
            text-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
        }

        .btn-primary.btn-custom {
            background-color: #0056b3;
            box-shadow: 0 6px 18px rgba(0, 86, 179, 0.5);
            color: white;
        }

        .btn-primary.btn-custom:hover {
            background-color: #003d80;
        }

        .btn-success.btn-custom {
            background-color: #198754;
            box-shadow: 0 6px 18px rgba(25, 135, 84, 0.5);
        }

        .btn-success.btn-custom:hover {
            background-color: #135e3e;
        }

        .btn-warning.btn-custom {
            background-color: #ffc107;
            box-shadow: 0 6px 18px rgba(255, 193, 7, 0.5);
            color: #0d1b2a;
            text-shadow: none;
        }

        .btn-warning.btn-custom:hover {
            background-color: #cc9a06;
            color: #fff;
            text-shadow: 0 1px 2px rgba(0, 0, 0, 0.25);
        }

        .btn-danger.btn-custom {
            background-color: #dc3545;
            box-shadow: 0 6px 18px rgba(220, 53, 69, 0.5);
        }

        .btn-danger.btn-custom:hover {
            background-color: #931f28;
        }

        .btn-light.btn-custom {
            background-color: #e9ecef;
            color: #0d1b2a;
            box-shadow: 0 6px 18px rgba(233, 236, 239, 0.7);
            text-shadow: none;
        }

        .btn-light.btn-custom:hover {
            background-color: #ced4da;
            color: #0d1b2a;
            text-shadow: none;
        }

        .btn-info.btn-custom {
            background-color: #0dcaf0;
            box-shadow: 0 6px 18px rgba(13, 202, 240, 0.5);
        }

        .btn-info.btn-custom:hover {
            background-color: #0a8ccf;
        }

        .btn-custom:hover {
            transform: scale(1.1);
        }

        .btn-custom img {
            width: 30px;
            height: 30px;
            border-radius: 50%;
            object-fit: contain;
            filter: drop-shadow(0 1px 1px rgba(0, 0, 0, 0.1));
        }

        p.fst-italic.fw-bolder {
            font-family: 'Merriweather', serif;
            font-size: 1.3rem;
            color: #1a2e4acc;
            margin-top: 0;
            margin-bottom: 0.4rem;
        }

        /* Responsive adjustments */
        @media (max-width: 576px) {
            .container {
                margin: 1.5rem 1rem 2rem;
                padding: 1.5rem;
                width: 90vw;
            }

            h1 {
                font-size: 1.6rem;
            }

            p.fst-italic.fw-bolder {
                font-size: 1.1rem;
            }

            .btn-custom {
                width: 100%;
                justify-content: center;
            }
        }