body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: #f4f7f6;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
}

.container {
    background-color: #fff;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    width: 100%;
    max-width: 500px;
    text-align: center;
}

h1 {
    color: #333;
}

p {
    color: #666;
    margin-bottom: 20px;
}

#youtube-url {
    width: 100%;
    padding: 12px;
    border: 1px solid #ccc;
    border-radius: 4px;
    box-sizing: border-box;
    margin-bottom: 15px;
}

button {
    width: 100%;
    padding: 12px;
    background-color: #d9230f;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 16px;
    font-weight: bold;
}

button:hover {
    background-color: #b81e0c;
}

#result p {
    margin-top: 20px;
    padding: 10px;
    border-radius: 4px;
}

.loading {
    background-color: #eef6ff;
    color: #3e8ed0;
}

.success {
    background-color: #e9f7ef;
    color: #4CAF50;
}

.error {
    background-color: #fbe9e7;
    color: #ff5252;
}

.download-btn {
    display: inline-block;
    margin-top: 10px;
    padding: 12px 25px;
    background-color: #28a745;
    color: white;
    text-decoration: none;
    border-radius: 4px;
    font-weight: bold;
}

.download-btn:hover {
    background-color: #218838;
}