* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    color: #333;
}

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

header {
    text-align: center;
    margin-bottom: 40px;
    color: white;
}

header h1 {
    font-size: 2.5rem;
    margin-bottom: 10px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

header p {
    font-size: 1.2rem;
    opacity: 0.9;
}

.payment-section {
    background: white;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(0,0,0,0.1);
}

.qris-section {
    text-align: center;
    margin-bottom: 0;
    background: white;
    padding: 0;
}

.qris-section h2 {
    margin-bottom: 20px;
    padding: 30px 20px 0;
    font-size: 1.8rem;
    color: #667eea;
}

.qris-container {
    display: block;
    width: 100%;
    background: white;
    padding: 0;
    margin: 0;
}

.qris-image {
    width: 100%;
    max-width: 600px;
    height: 600px;
    object-fit: cover;
    display: block;
    margin: 0 auto;
}

.qris-note {
    margin-top: 15px;
    padding: 0 20px 20px;
    color: #666;
    font-weight: 500;
}

.payment-methods {
    padding: 40px;
}

.payment-methods h2 {
    text-align: center;
    margin-bottom: 30px;
    font-size: 2rem;
    color: #333;
}

.payment-category {
    margin-bottom: 40px;
}

.payment-category h3 {
    font-size: 1.5rem;
    margin-bottom: 20px;
    color: #667eea;
    display: flex;
    align-items: center;
    gap: 10px;
}

.payment-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 15px;
}

.payment-item {
    background: #f8f9fa;
    padding: 20px;
    border-radius: 10px;
    border: 2px solid transparent;
    transition: all 0.3s ease;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.payment-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.1);
    border-color: #667eea;
}

.payment-item i {
    font-size: 2rem;
    color: #667eea;
    margin-bottom: 10px;
}

.payment-item strong {
    font-size: 1.1rem;
    margin-bottom: 5px;
    color: #333;
}

.payment-item span {
    font-family: 'Courier New', monospace;
    font-size: 1.1rem;
    color: #666;
    font-weight: bold;
}

.instructions, .contact {
    margin: 40px;
    padding: 30px;
    background: #f8f9fa;
    border-radius: 15px;
}

.instructions h2, .contact h2 {
    margin-bottom: 20px;
    color: #667eea;
    display: flex;
    align-items: center;
    gap: 10px;
}

.instructions ol {
    padding-left: 20px;
}

.instructions li {
    margin-bottom: 10px;
    font-size: 1.1rem;
}

.contact p {
    font-size: 1.1rem;
    margin-bottom: 15px;
}

.contact-info {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.2rem;
}

.whatsapp-link {
    color: #25D366;
    text-decoration: none;
    font-weight: bold;
    transition: all 0.3s ease;
}

.whatsapp-link:hover {
    color: #128C7E;
    transform: scale(1.05);
}

footer {
    text-align: center;
    margin: 40px;
    color: white;
    opacity: 0.8;
}

.notification {
    position: fixed;
    top: 20px;
    right: 20px;
    background: #4CAF50;
    color: white;
    padding: 15px 25px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.3);
    z-index: 1000;
    animation: slideIn 0.3s ease;
}

@keyframes slideIn {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

@media (max-width: 768px) {
    .container {
        padding: 10px;
    }
    
    header h1 {
        font-size: 2rem;
    }
    
    .payment-methods {
        padding: 20px;
    }
    
    .qris-image {
        width: 100%;
        max-width: 100%;
        height: auto;
    }
    
    .payment-grid {
        grid-template-columns: 1fr;
    }
    
    .instructions, .contact {
        margin: 20px;
    }
}

@media (min-width: 1024px) {
    .qris-image {
        max-width: 500px;
        height: 500px;
    }
}

@media (min-width: 1440px) {
    .qris-image {
        max-width: 600px;
        height: 600px;
    }
}