body {
    margin: 0;
    font-family: 'Segoe UI', sans-serif;
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: #fff;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
}

.container {
    background: rgba(0,0,0,0.6);
    padding: 30px;
    border-radius: 20px;
    box-shadow: 0 8px 32px rgba(0,0,0,0.5);
    backdrop-filter: blur(10px);
    text-align: center;
    width: 90%;
    max-width: 500px;
}

input[type="text"] {
    width: 80%;
    padding: 12px;
    margin: 10px 0;
    border-radius: 10px;
    border: none;
}

button {
    padding: 12px 20px;
    border: none;
    border-radius: 10px;
    background: linear-gradient(to right, #00c6ff, #0072ff);
    color: #fff;
    font-size: 16px;
    cursor: pointer;
}

button:hover {
    opacity: 0.9;
}

.format-buttons {
    margin: 10px 0;
}

.format-buttons label {
    margin: 0 10px;
    cursor: pointer;
}

#progressBar {
    height: 8px;
    width: 0%;
    background: #00ff99;
    border-radius: 4px;
    margin: 10px 0;
    transition: width 0.3s;
}

.card {
    background: rgba(255,255,255,0.1);
    padding: 15px;
    border-radius: 15px;
    margin-top: 15px;
}