/* Reset dan Pengaturan Dasar */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: Arial, sans-serif;
}

/* Background Warna-Warni Bergerak */
body {
    min-height: 100vh;
    background: linear-gradient(45deg, #ff0066, #00ccff, #66ff66, #ff9900);
    background-size: 400% 400%;
    animation: gradientAnimation 15s ease infinite;
    color: #fff;
    padding: 20px;
}

/* Header */
header {
    padding: 20px;
    background: rgba(0, 0, 0, 0.3);
    text-align: center;
    border-radius: 10px;
}

header h1 {
    font-size: 2.5em;
}

/* Navigasi */
nav {
    margin: 20px 0;
    text-align: center;
    background: rgba(0, 0, 0, 0.2);
    padding: 10px;
    border-radius: 10px;
}

nav a {
    color: #fff;
    text-decoration: none;
    padding: 10px 20px;
    margin: 0 10px;
    border-radius: 5px;
    transition: background-color 0.3s ease;
}

nav a:hover {
    background-color: rgba(255, 255, 255, 0.3);
}

/* Main Content */
main {
    max-width: 900px;
    margin: 0 auto;
    padding: 20px;
    background: rgba(0, 0, 0, 0.3);
    border-radius: 10px;
}

/* Section */
section {
    margin-bottom: 30px;
}

section h2 {
    font-size: 1.8em;
    margin-bottom: 10px;
}

section p i {
    display: block;
    margin-bottom: 10px;
}

section p mark {
    background-color: yellow;
    color: black;
    padding: 0 5px;
    border-radius: 3px;
}

/* Gambar */
img {
    max-width: 100%;
    height: auto;
    border-radius: 10px;
}

/* Footer */
footer {
    padding: 20px;
    background: rgba(0, 0, 0, 0.2);
    text-align: center;
    border-radius: 10px;
    margin-top: 30px;
}

/* Animasi Background */
@keyframes gradientAnimation {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

/* Responsif */
@media (max-width: 600px) {
    header h1 {
        font-size: 2em;
    }

    nav a {
        display: block;
        margin: 10px 0;
    }
}