/* CSS Reset Sederhana */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Poppins', sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f4f4f4;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

/* Header */
header {
    background: #2c3e50;
    color: #fff;
    padding: 20px 0;
    text-align: center;
}

header h1 {
    font-size: 2.5em;
    margin-bottom: 10px;
    color: #ecf0f1;
}

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

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

header nav ul li a {
    color: #fff;
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s ease;
}

header nav ul li a:hover {
    color: #3498db;
}

/* Hero Section */
#hero {
    background: url("https://lh3.googleusercontent.com/u0DU-l9AiiVkoqAQ4Y1v_ozAb1b9zhw7HLE9Tr_t61tSJfXhbk8V21SLASyoDqtmXbgjJaQEtlx9NXSPfauVzHxmlTy9l-iI4Vdp") no-repeat center center/cover;
    /* Ganti dengan gambar latar belakang yang lebih menarik */
    color: #fff;
    text-align: center;
    padding: 100px 20px;
    position: relative;
}

#hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.6);
    /* Overlay gelap */
}

#hero * {
    position: relative;
    z-index: 1;
}

#hero h2 {
    font-size: 3em;
    margin-bottom: 20px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.7);
}

#hero p {
    font-size: 1.2em;
    margin-bottom: 30px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.button {
    display: inline-block;
    background: #e74c3c;
    color: #fff;
    padding: 15px 30px;
    text-decoration: none;
    border-radius: 5px;
    font-size: 1.1em;
    font-weight: 700;
    transition: background 0.3s ease, transform 0.3s ease;
}

.button:hover {
    background: #c0392b;
    transform: translateY(-3px);
}

/* Main Content Sections */
main {
    padding: 40px 0;
}

section {
    background: #fff;
    padding: 40px;
    margin-bottom: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

section h2 {
    font-size: 2em;
    color: #2c3e50;
    margin-bottom: 20px;
    border-bottom: 2px solid #3498db;
    padding-bottom: 10px;
}

/* Keunggulan Section */
#keunggulan ul {
    list-style: none;
    padding: 0;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

#keunggulan ul li {
    background: #ecf0f1;
    padding: 20px;
    border-left: 5px solid #3498db;
    border-radius: 5px;
    font-size: 1.1em;
}

#keunggulan ul li b {
    color: #e74c3c;
}

/* Kursus Section */
.kursus-item {
    display: flex;
    align-items: center;
    margin-bottom: 30px;
    gap: 20px;
    border: 1px solid #ddd;
    border-radius: 8px;
    padding: 20px;
    transition: transform 0.3s ease;
}

.kursus-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.15);
}

.kursus-item img {
    max-width: 150px;
    height: auto;
    border-radius: 5px;
    object-fit: cover;
}

.kursus-item-content h3 {
    color: #2c3e50;
    margin-bottom: 10px;
    font-size: 1.5em;
}

.kursus-item-content p {
    margin-bottom: 10px;
}

.kursus-item-content .price {
    font-weight: 700;
    color: #27ae60;
    font-size: 1.3em;
}

/* Testimoni Section */
.testimonial-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}

.testimonial-card {
    background: #f9f9f9;
    padding: 25px;
    border-radius: 8px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.05);
    font-style: italic;
    text-align: center;
}

.testimonial-card p {
    margin-bottom: 15px;
}

.testimonial-card .author {
    font-weight: 600;
    color: #e74c3c;
}

/* Call to Action Section */
#cta {
    text-align: center;
    background: #3498db;
    color: #fff;
    padding: 50px 20px;
    border-radius: 8px;
    margin-top: 40px;
}

#cta h2 {
    color: #fff;
    margin-bottom: 20px;
    border-bottom: none;
}

/* Footer */
footer {
    background: #2c3e50;
    color: #fff;
    text-align: center;
    padding: 30px 0;
    margin-top: 40px;
}

footer p {
    margin-bottom: 10px;
}

footer .social-links a {
    color: #fff;
    font-size: 1.5em;
    margin: 0 10px;
    transition: color 0.3s ease;
}

footer .social-links a:hover {
    color: #3498db;
}

/* Responsive Design */
@media (max-width: 768px) {
    header h1 {
        font-size: 2em;
    }

    header nav ul li {
        display: block;
        margin: 10px 0;
    }

    #hero h2 {
        font-size: 2.2em;
    }

    .kursus-item {
        flex-direction: column;
        text-align: center;
    }

    .kursus-item img {
        margin-bottom: 15px;
    }
}