body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    line-height: 1.6;
}

header {
    background: #333;
    color: #fff;
    padding: 10px 0;
    text-align: center;
    position: fixed; /* Fixed position */
    width: 100%; /* Full width */
    top: 0; /* Stick to the top */
    z-index: 1000; 
}

header h1 {
    margin-top: 0;
}

nav ul {
    list-style: none;
    padding: 0;
}

nav ul li {
    display: inline;
    margin: 0 15px;
}

nav a {
    color: #fff;
    text-decoration: none;
}

nav a:hover {
    text-decoration: underline;
}

main {
    padding: 20px;
    margin-left: 50px;  /* Add left margin */
    margin-right: 50px; /* Add right margin */
    margin-top: 10px; /* Add top margin to prevent overlap with fixed header */
}


.marquee-container {
    margin-top: 70px; /* Jarak di bawah header */
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: #ffcc00; /* Warna kuning terang seperti iklan */
    padding: 10px 0;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1); /* Tambahkan efek bayangan */
    z-index: 999;
}

.marquee-card {
    border: 2px solid #333; /* Bingkai hitam */
    border-radius: 10px;
    padding: 15px;
    background-color: #fff; /* Warna latar belakang putih */
    animation: glow 1s infinite alternate; /* Efek menyala */
    margin-top: 120px;
}

.marquee-card marquee {
    font-size: 24px; /* Ukuran teks besar */
    font-weight: bold;
    color: #ff0000; /* Warna teks merah menyala */
    text-shadow: 2px 2px 10px rgba(255, 0, 0, 0.8); /* Efek cahaya */
}

@keyframes glow {
    from {
        box-shadow: 0 0 10px #ff0000;
    }
    to {
        box-shadow: 0 0 20px #ff4500; /* Warna oranye terang */
    }
}

/* Responsive design */
@media (max-width: 768px) {
    main {
        margin-left: 20px;  /* Reduced left margin */
        margin-right: 20px; /* Reduced right margin */
        margin-top: 5px; /* Adjust top margin for mobile devices */
    }

    .card {
        width: 100%;  /* Full width on small screens */
        margin: 5px 0; /* Reduce margin between cards */
    }
}

/* Ajakan di Text */
.call-to-action {
    font-size: 18px;
    font-weight: bold;
    color: #ff5722;
    margin-top: 15px;
    text-align: center;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.2);
    animation: pulse 2s infinite;
}

/* Animasi untuk Ajakan */
@keyframes pulse {
    0% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
    100% {
        transform: scale(1);
    }
}

/* Reverse Layout untuk Card Gambar Kanan */
.about-card.reverse {
    flex-direction: row-reverse;
}

/* Responsif */
@media (max-width: 768px) {
    .about-card {
        flex-direction: column;
    }

    .about-img {
        width: 100%;
    }

    .call-to-action {
        font-size: 16px;
    }
}