* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
body {
    font-family: Arial, sans-serif;
    background: #f4f4f4;
}
header {
    background: url('../images/header.jpg') no-repeat center center;
    background-size: cover;
    height: 250px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: white;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.7);
    text-align: center;
    padding: 20px;
    box-sizing: border-box;
}
header img {
    max-width: 100%;
    height: auto;
}
header h1 {
    font-size: 2.5rem;
    margin: 0;
    font-weight: bold;
}
nav {
    background: #003366;
}
nav ul.menu {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    padding: 0 20px;
    margin: 0;
}
nav ul.menu > li {
    position: relative;
    padding: 10px 20px;
    transition: background 0.3s ease;
}
nav ul.menu > li > a {
    color: #fff;
    text-decoration: none;
    font-weight: bold;
    transition: color 0.3s ease;
}

/* ===== EFEK HOVER PADA MENU UTAMA (BIRU MUDA) ===== */
nav ul.menu > li:hover {
    background: #B0D4F1; /* warna biru muda */
}
nav ul.menu > li:hover > a {
    color: #003366; /* teks menjadi biru tua agar kontras */
}
/* ===== AKHIR EFEK HOVER ===== */

nav ul.menu li:hover > .submenu {
    display: block;
}
nav ul.submenu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    background: #003366;
    list-style: none;
    padding: 10px 0;
    min-width: 150px;
    z-index: 1000;
}
nav ul.submenu li {
    padding: 5px 20px;
    transition: background 0.3s ease;
}
nav ul.submenu li a {
    color: #fff;
    text-decoration: none;
    transition: color 0.3s ease;
}

/* ===== EFEK HOVER PADA SUBMENU (BIRU MUDA) ===== */
nav ul.submenu li:hover {
    background: #B0D4F1;
}
nav ul.submenu li:hover a {
    color: #003366;
}
/* ===== AKHIR EFEK HOVER ===== */

.container {
    display: flex;
    flex-wrap: wrap;
    max-width: 1200px;
    margin: 20px auto;
    padding: 0 15px;
}
.left {
    flex: 0 0 30%;
    background: #fff;
    padding: 15px;
    margin-right: 20px;
    border-radius: 5px;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
}
.left h3 {
    border-bottom: 2px solid #003366;
    padding-bottom: 10px;
    margin-bottom: 10px;
    color: #003366;
}
.left ul {
    list-style: none;
}
.left ul li {
    margin-bottom: 8px;
}
.left ul li a {
    color: #003366;
    text-decoration: none;
}
.left ul li a:hover {
    text-decoration: underline;
}
.right {
    flex: 1;
    background: #fff;
    padding: 15px;
    border-radius: 5px;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
    min-height: 400px;
}
.right h2 {
    color: #003366;
    border-bottom: 2px solid #eee;
    padding-bottom: 10px;
    margin-bottom: 15px;
}
.content-body img, .content-body video {
    max-width: 100%;
    height: auto;
}
@media (max-width: 768px) {
    .left {
        flex: 0 0 100%;
        margin-right: 0;
        margin-bottom: 20px;
    }
    .right {
        flex: 0 0 100%;
    }
}