body {
    font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
    background: #0f172a;
    color: white;
    text-align: center;
    padding: 40px;
}

h1 {
    font-size: 36px;
    margin-bottom: 20px;
}

input {
    padding: 12px;
    margin: 10px;
    font-size: 16px;
    border-radius: 8px;
    border: none;
}

button {
    padding: 12px 22px;
    font-size: 16px;
    border-radius: 10px;
    border: none;
    background: #2563eb;
    color: white;
    cursor: pointer;
    transition: 0.2s;
}

button:hover {
    background: #1d4ed8;
}

video {
    width: 420px;
    max-width: 95%;
    margin: 15px;
    border-radius: 14px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.4);
}

#progressBarContainer {
    width: 80%;
    margin: 20px auto;
    background: #1e293b;
    border-radius: 12px;
}

#progressBar {
    height: 20px;
    width: 0%;
    background: #22c55e;
    border-radius: 12px;
}