body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    margin: 0;
    background: #f9f9f9;
    color: #333;
}

.container {
    max-width: 960px;
    margin: 0 auto;
    padding: 20px;
}

.kerjasama-hero {
    background: url('https://images.unsplash.com/photo-1504384308090-c894fdcc538d?auto=format&fit=crop&w=1470&q=80') no-repeat center center/cover;
    color: white;
    text-align: center;
    padding: 100px 20px;
    position: relative;
}

.kerjasama-hero::before {
    content: "";
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0,0,0,0.5);
    z-index: 0;
}

.kerjasama-hero .container {
    position: relative;
    z-index: 1;
}

.kerjasama-hero h1 {
    font-size: 3rem;
    margin-bottom: 0.5rem;
}

.kerjasama-hero p {
    font-size: 1.2rem;
    margin-bottom: 1.5rem;
}

.btn-primary {
    background-color: #007bff;
    color: white;
    padding: 12px 28px;
    border: none;
    border-radius: 6px;
    font-size: 1.1rem;
    cursor: pointer;
    text-decoration: none;
    display: inline-block;
    transition: background-color 0.3s ease;
}

.btn-primary:hover {
    background-color: #0056b3;
}

.kerjasama-info {
    text-align: center;
    margin-top: 60px;
}

.kerjasama-info h2 {
    margin-bottom: 40px;
    font-size: 2.2rem;
}

.info-cards {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

.card {
    background: white;
    padding: 30px 20px;
    box-shadow: 0 3px 8px rgba(0,0,0,0.1);
    border-radius: 8px;
    flex: 1 1 250px;
    max-width: 300px;
}

.card h3 {
    margin-bottom: 15px;
    font-size: 1.4rem;
    color: #007bff;
}

.card p {
    font-size: 1rem;
    line-height: 1.5;
    color: #555;
}

.form-section {
    background: white;
    margin: 60px 0;
    padding: 40px 30px;
    border-radius: 8px;
    box-shadow: 0 3px 10px rgba(0,0,0,0.1);
}

.form-section h2 {
    text-align: center;
    margin-bottom: 30px;
    font-size: 2rem;
}

form label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
}

form input[type="text"],
form input[type="email"],
form textarea {
    width: 100%;
    padding: 12px 15px;
    margin-bottom: 20px;
    border: 1.5px solid #ccc;
    border-radius: 6px;
    font-size: 1rem;
    resize: vertical;
}

form button {
    width: 100%;
    font-weight: 700;
}
.sponsor-section {
    margin-top: 60px;
    text-align: center;
}

.sponsor-section h2 {
    font-size: 2.2rem;
    margin-bottom: 30px;
}

.sponsor-cards {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 30px;
}

.sponsor-card {
    background: white;
    border-radius: 8px;
    box-shadow: 0 3px 10px rgba(0,0,0,0.1);
    padding: 20px;
    max-width: 160px;
    width: 100%;
    text-align: center;
    transition: transform 0.3s ease;
    cursor: default;
}

.sponsor-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 6px 15px rgba(0,0,0,0.15);
}

.sponsor-card img {
    max-width: 100px;
    height: auto;
    margin-bottom: 12px;
    object-fit: contain;
}

.sponsor-card p {
    font-weight: 600;
    font-size: 1.1rem;
    color: #007bff;
    margin: 0;
}
.full-width-img {
    width: 100vw;           /* Full viewport width */
    height: auto;
    display: block;
    margin-left: calc(-50vw + 50%); /* Remove horizontal margin of container */
    max-width: none;
}