body, html {
    margin: 0;
    padding: 0;
    font-family: 'Fira Sans', sans-serif;
    background: linear-gradient(to bottom, #0A2463, #5B0099, #FFC700);
    color: white;
    line-height: 1.6;
    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/cover, linear-gradient(to bottom, #0A2463, #5B0099);
}

header h1 {
    font-size: 3rem;
    font-weight: bold;
    letter-spacing: 2px;
    text-shadow: 0 4px 8px rgba(0, 0, 0, 0.5);
}

section {
    padding: 40px 20px;
    max-width: 1200px;
    margin: 0 auto;
}

h2, h3 {
    font-family: 'Fira Sans', sans-serif;
    font-weight: bold;
    color: #FFC700;
    margin-bottom: 20px;
}

p {
    font-family: 'Roboto', sans-serif;
    line-height: 1.6;
    letter-spacing: 0.5px;
    margin-bottom: 20px;
}

pre {
    background-color: rgba(255, 255, 255, 0.1);
    padding: 15px;
    border-radius: 5px;
    overflow-x: auto;
}

code {
    color: #FFC700;
    font-family: 'Courier New', Courier, monospace;
}

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

.card {
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    padding: 20px;
    transition: transform 0.3s ease-in-out;
    text-align: center;
}

.card:hover {
    transform: scale(1.05);
}

.card img {
    width: 100%;
    height: auto;
    border-radius: 10px;
    margin-bottom: 10px;
}

.button {
    background-color: #FFC700;
    color: #0A2463;
    border: none;
    padding: 10px 20px;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.3s ease, transform 0.3s ease;
    font-size: 1rem;
    margin-top: 20px;
}

.button:hover {
    background-color: #FFD94E;
    transform: scale(1.1);
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: #0A2463;
    padding: 10px 20px;
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
}

.nav-links {
    display: flex;
    gap: 20px;
}

.nav-links a {
    color: white;
    text-decoration: none;
    font-size: 1rem;
    rel="nofollow"
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
        flex-direction: column;
    }

    .navbar .menu-icon {
        display: block;
        cursor: pointer;
    }
}

.video-container {
    position: relative;
    padding-bottom: 56.25%;
    height: 0;
    overflow: hidden;
    margin: 20px 0;
}

.video-container iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}