/* --- Reset Dasar & Pengaturan Font --- */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html, body {
    height: 100%; /* Memastikan html dan body juga memiliki tinggi penuh */
    font-family: 'Poppins', sans-serif;
    color: #ffffff;
    overflow: hidden; /* Mencegah scrollbar yang tidak perlu */
}

/* --- Container Utama (100vh & Latar Belakang Gradien Animasi) --- */
.main-container {
    height: 100vh; /* Kunci utama: tinggi 100% dari viewport */
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;

    /* Latar belakang gradien */
    background: linear-gradient(-45deg, #0f2027, #203a43, #2c5364, #1c3d52);
    background-size: 400% 400%;
    
    /* Animasi gradien */
    animation: gradientAnimation 15s ease infinite;
}

/* --- Keyframes untuk Animasi Latar Belakang --- */
@keyframes gradientAnimation {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

/* --- Kotak Konten (Efek Kaca / Glassmorphism) --- */
.content-box {
    text-align: center;
    padding: 50px 60px;
    max-width: 700px;
    
    /* Efek Glassmorphism */
    background: rgba(255, 255, 255, 0.1);
    border-radius: 16px;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.2);
    backdrop-filter: blur(7px);
    -webkit-backdrop-filter: blur(7px); /* Untuk support Safari */
    border: 1px solid rgba(255, 255, 255, 0.2);

    /* Animasi saat muncul */
    animation: fadeIn 1.5s ease-out;
}

/* --- Keyframes untuk Animasi Konten Muncul --- */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}


/* --- Styling Teks --- */
.content-box h1 {
    font-size: 2.8rem;
    font-weight: 600;
    margin-bottom: 15px;
    text-shadow: 0 2px 4px rgba(0,0,0,0.2);
}

.content-box p {
    font-size: 1.1rem;
    font-weight: 300;
    line-height: 1.6;
}

.content-box .divider {
    height: 1px;
    width: 100px;
    background-color: rgba(255, 255, 255, 0.5);
    margin: 30px auto;
}

.content-box .stay-tuned {
    font-weight: 600;
    font-size: 1.2rem;
    opacity: 0.8;
}


/* --- Desain Responsif (Untuk Mobile) --- */
@media (max-width: 768px) {
    .content-box {
        padding: 40px 25px;
    }

    .content-box h1 {
        font-size: 2.2rem;
    }

    .content-box p {
        font-size: 1rem;
    }
}