body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f4f4f4;
}

.background-video {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: -1;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    background-color: white;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
    padding: 0 20px;
}

@media (max-width: 768px) {
    .container {
        padding: 0 10px;
    }

    header {
        flex-direction: column;
        text-align: center;
    }

    nav ul {
        flex-direction: column;
        margin-top: 10px;
    }

    nav ul li {
        margin: 5px 0;
    }

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

header {
    position: relative;
    height: 500px;
    overflow: hidden;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    padding: 20px;
}

.header-video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: -1;
}

header .logo,
header nav {
    position: relative;
    z-index: 1;
}

nav ul {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
    gap: 20px;
}

nav ul li a {
    color: white;
    text-decoration: none;
    font-size: 20px;
}

.logo img {
    height: 150px;
    width: auto;
}

main {
    padding: 20px;
}

.intro {
    text-align: center;
    margin-bottom: 40px;
}

.intro h2 {
    font-size: 2.5em;
    margin-bottom: 10px;
}

.intro p {
    font-size: 1.2em;
    color: #666;
}

.model-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
}

#models h2, #history h2 {
    text-align: center;
    font-size: 2.5em;
}

#history p {
    text-align: center;
}

.model-item {
    cursor: pointer;
    text-align: center;
}

.model-item img {
    width: 100%;
    height: auto;
    border-radius: 15px;
}

#model-description {
    margin-top: 20px;
    padding: 20px;
    background-color: #eee;
    border-radius: 5px;
}

.hidden {
    display: none;
}

footer {
    padding: 20px;
    background-color: #333;
    color: white;
    text-align: center;
}

.social-links a {
    margin: 0 10px;
    color: white;
    text-decoration: none;
}