body {
    margin: 0;
    font-family: Arial, sans-serif;
    background-color: #000;
    color: #fff;
}

.video-background {
    position: relative;
    width: 100%;
    height: 100vh;
    overflow: hidden;
}

video {
    position: absolute;
    top: 50%;
    left: 50%;
    min-width: 100%;
    min-height: 100%;
    transform: translate(-50%, -50%);
}

.registration-form {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: rgba(0, 0, 0, 0.7);
    padding: 20px 30px;
    border-radius: 8px;
    text-align: center;
}

.registration-form input {
    display: block;
    width: 100%;
    padding: 10px;
    margin: 10px 0;
    border: none;
    border-radius: 5px;
}

.registration-form button {
    background: #007bff;
    color: #fff;
    border: none;
    padding: 10px 20px;
    border-radius: 5px;
    cursor: pointer;
}

.registration-form button:hover {
    background: #0056b3;
}

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

.video-item {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    overflow: hidden;
}

.video-item video {
    width: 100%;
    height: auto;
}