/* Reset Margin dan Padding */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* Body dengan Background Warna-warni yang Bergerak */
body {
    font-family: Arial, sans-serif;
    background: linear-gradient(135deg, #ff0000, #0000ff, #00ff00, #ff0000);
    background-size: 400% 400%;
    animation: GradientAnimation 15s ease infinite;
    color: #333;
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

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

/* Header Styling */
header {
    background-color: rgba(255, 255, 255, 0.8);
    padding: 20px;
    text-align: center;
    border-bottom: 2px solid #ddd;
}

header h1 {
    margin-bottom: 10px;
    font-size: 2em;
}

header nav a {
    text-decoration: none;
    color: #333;
    margin: 0 10px;
    font-weight: bold;
    transition: color 0.3s ease;
}

header nav a:hover {
    color: #ff0000; /* Merah saat hover */
}

/* Main Content Styling */
main {
    flex: 1;
    padding: 20px;
    max-width: 800px;
    margin: 20px auto;
    background-color: rgba(255, 255, 255, 0.9);
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

section {
    margin-bottom: 30px;
}

section h2 {
    margin-bottom: 10px;
    color: #ff0000; /* Merah untuk judul section */
}

section p {
    margin-bottom: 10px;
}

section a {
    color: #0000ff; /* Biru untuk link */
    text-decoration: none;
    transition: color 0.3s ease;
}

section a:hover {
    text-decoration: underline;
    color: #00ff00; /* Hijau saat hover */
}

/* Warna Teks Bagian "HTML Warna" */
.warna-biru {
    color: blue;
}

.warna-merah {
    color: red;
}

.warna-hitam {
    color: black;
}

/* Footer Styling */
footer {
    text-align: center;
    padding: 15px;
    background-color: rgba(255, 255, 255, 0.8);
    border-top: 2px solid #ddd;
    font-size: 0.9em;
}

/* Responsivitas */
@media (max-width: 600px) {
    header, main, footer {
        padding: 15px;
    }

    header nav a {
        display: block;
        margin: 5px 0;
    }

    footer {
        position: static;
    }
}