body {
    margin: 0;
    font-family: 'Roboto', sans-serif;
    background: linear-gradient(135deg, #0f0c29, #302b63, #24243e);
    color: #fff;
    line-height: 1.6;
    overflow-x: hidden;
}
header {
    position: relative;
    height: 100vh;
    background: url('https://images.gptkong.com/demo/sample1.png') no-repeat center center/cover;
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
    color: #fff;
    overflow: hidden;
}
header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 200%;
    height: 100%;
    background: rgba(0, 255, 127, 0.1);
    animation: particles 10s infinite linear;
}
@keyframes particles {
    0% { transform: translateX(-50%); }
    100% { transform: translateX(50%); }
}
header h1 {
    font-family: 'Montserrat', sans-serif;
    font-size: 4rem;
    font-weight: bold;
    text-shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
    z-index: 1;
}
nav {
    position: absolute;
    top: 20px;
    right: 20px;
    display: flex;
    gap: 20px;
    z-index: 2;
}
nav a {
    color: #fff;
    text-decoration: none;
    font-size: 1.2rem;
    transition: color 0.3s ease;
}
nav a:hover {
    color: #34C759;
}
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}
.module {
    background: linear-gradient(135deg, #1E1E1E, #2A2A2A);
    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;
}
.module:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 12px rgba(0, 0, 0, 0.3);
}
.module img {
    max-width: 100%;
    border-radius: 8px;
    margin-bottom: 10px;
}
.module h3 {
    font-size: 1.5rem;
    color: #34C759;
    margin-bottom: 10px;
}
.module p {
    font-size: 1rem;
    color: #ccc;
}
code {
    display: block;
    background: #121212;
    color: #34C759;
    padding: 10px;
    border-radius: 5px;
    overflow-x: auto;
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
    white-space: pre-wrap;
    word-break: break-all;
}
button {
    background: #34C759;
    color: #fff;
    border: none;
    padding: 10px 20px;
    border-radius: 5px;
    cursor: pointer;
    transition: all 0.3s ease;
}
button:hover {
    background: #2E7D32;
    transform: scale(1.1);
}
table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
}
table th, table td {
    border: 1px solid #444;
    padding: 10px;
    text-align: center;
    background: #222;
    color: #fff;
}
table th {
    background: #34C759;
    color: #000;
}
footer {
    text-align: center;
    padding: 20px;
    background: #121212;
    color: #ccc;
    font-size: 0.9rem;
}
@media (max-width: 768px) {
    header h1 {
        font-size: 2.5rem;
    }
    nav a {
        font-size: 1rem;
    }
    .container {
        grid-template-columns: 1fr;
    }
}