body {

    margin: 0;

    background: #0c0c12;

    color: white;

    font-family: Arial, sans-serif;

    display: flex;

    justify-content: center;

    align-items: center;

    min-height: 100vh;
}

.container {

    width: 90%;

    max-width: 900px;

    text-align: center;
}

h1 {

    margin-bottom: 20px;

    letter-spacing: 3px;
}

video {

    width: 100%;

    border-radius: 20px;

    border: 4px solid #222;
}

button {

    margin-top: 20px;

    padding: 16px 32px;

    border: none;

    border-radius: 14px;

    background: #4f46e5;

    color: white;

    font-size: 18px;

    cursor: pointer;
}

button:hover {

    opacity: 0.9;
}

#resultImage {

    margin-top: 30px;

    width: 100%;

    border-radius: 20px;
}

#downloadBtn {

    display: inline-block;

    margin-top: 20px;

    padding: 14px 28px;

    background: #16a34a;

    color: white;

    text-decoration: none;

    border-radius: 12px;
}

.hidden {

    display: none;
}

.spinner {

    width: 60px;

    height: 60px;

    border: 6px solid #333;

    border-top: 6px solid white;

    border-radius: 50%;

    animation: spin 1s linear infinite;

    margin: 30px auto;
}

@keyframes spin {

    100% {

        transform: rotate(360deg);

    }
}