body {
    margin: 0;
    font-family: 'Poppins', sans-serif;
    background: linear-gradient(135deg, #000046, #1cb5e0);
    color: #fff;
    overflow-x: hidden;
}

header {
    position: relative;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
    background: url('https://images.gptkong.com/demo/sample1.png') no-repeat center center/cover, linear-gradient(rgba(0, 0, 70, 0.8), rgba(28, 181, 224, 0.8));
}

header h1 {
    font-family: 'Orbitron', sans-serif;
    font-size: 4rem;
    text-shadow: 0 0 20px #9b59b6, 0 0 40px #9b59b6;
}

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

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

.card {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    padding: 20px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.2);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 20px rgba(155, 89, 182, 0.5);
}

.card img {
    width: 100%;
    border-radius: 10px;
}

code {
    background: #1a1a1a;
    color: #9b59b6;
    padding: 10px;
    border-radius: 5px;
    display: block;
    white-space: pre-wrap;
    word-break: break-all;
}

button {
    background: linear-gradient(135deg, #9b59b6, #3498db);
    border: none;
    color: #fff;
    padding: 10px 20px;
    border-radius: 5px;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

button:hover {
    transform: scale(1.05);
}

button::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 0;
    height: 0;
    background: rgba(155, 89, 182, 0.5);
    border-radius: 50%;
    transition: width 0.5s ease, height 0.5s ease;
}

button:hover::after {
    width: 200%;
    height: 200%;
}

@media (max-width: 768px) {
    header h1 {
        font-size: 2.5rem;
    }

    .grid {
        grid-template-columns: 1fr;
    }
}