.yt-tb-container {
    max-width: 600px;
    margin: 0 auto;
    padding: 20px;
    background: #f9f9f9;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
}

.yt-tb-container h2 {
    text-align: center;
    color: #ff0000;
    margin-bottom: 20px;
    font-weight: 600;
}

.yt-tb-form {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
}

.yt-tb-input {
    flex: 1;
    padding: 12px 15px;
    border: 2px solid #ddd;
    border-radius: 5px;
    font-size: 14px;
    transition: border-color 0.3s ease;
}

.yt-tb-input:focus {
    outline: none;
    border-color: #ff0000;
}

.yt-tb-button {
    padding: 12px 20px;
    background: #ff0000;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 600;
    transition: background 0.3s ease;
}

.yt-tb-button:hover {
    background: #cc0000;
}

.yt-tb-button:disabled {
    background: #ccc;
    cursor: not-allowed;
}

.yt-tb-result {
    margin-top: 20px;
}

.yt-tb-loading {
    text-align: center;
    padding: 20px;
    color: #666;
    font-style: italic;
}

.yt-tb-error {
    background: #ffe6e6;
    color: #d8000c;
    padding: 15px;
    border-radius: 5px;
    border-left: 4px solid #d8000c;
    margin-bottom: 15px;
}

.yt-tb-thumbnail-container {
    text-align: center;
    background: white;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 1px 5px rgba(0, 0, 0, 0.1);
}

.yt-tb-thumbnail-container h3 {
    margin-bottom: 15px;
    color: #333;
    font-weight: 600;
}

.yt-tb-thumbnail {
    max-width: 100%;
    height: auto;
    border-radius: 5px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
    margin-bottom: 15px;
}

.yt-tb-download-container {
    margin-top: 15px;
}

.yt-tb-download-button {
    display: inline-block;
    padding: 12px 25px;
    background: #28a745;
    color: white;
    text-decoration: none;
    border-radius: 5px;
    font-weight: 600;
    transition: background 0.3s ease;
}

.yt-tb-download-button:hover {
    background: #218838;
    color: white;
    text-decoration: none;
}

/* Responsive design */
@media (max-width: 768px) {
    .yt-tb-form {
        flex-direction: column;
    }
    
    .yt-tb-button {
        width: 100%;
    }
    
    .yt-tb-container {
        margin: 10px;
        padding: 15px;
    }
}