.summarizer-pro-container {
    max-width: 800px;
    margin: 20px auto;
    padding: 20px;
    background: #f9f9f9;
    border-radius: 8px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}
.summarizer-pro-label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: #333;
}
.summarizer-pro-textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 16px;
    line-height: 1.5;
    resize: vertical;
    box-sizing: border-box;
}
.summarizer-pro-textarea:focus {
    outline: none;
    border-color: #007cba;
    box-shadow: 0 0 0 1px #007cba;
}
.summarizer-pro-button {
    margin-top: 15px;
    padding: 10px 20px;
    background: #007cba;
    color: white;
    border: none;
    border-radius: 4px;
    font-size: 16px;
    cursor: pointer;
}
.summarizer-pro-button:hover { background: #005a87; }
.summarizer-pro-button:disabled { background: #ccc; cursor: not-allowed; }
.summarizer-pro-loading {
    margin-top: 15px;
    display: flex;
    align-items: center;
    gap: 10px;
    color: #555;
}
.summarizer-pro-loading .spinner {
    width: 20px;
    height: 20px;
    border: 3px solid rgba(0,0,0,0.1);
    border-radius: 50%;
    border-top-color: #007cba;
    animation: spin 1s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.summarizer-pro-result {
    margin-top: 25px;
    padding-top: 20px;
    border-top: 1px solid #ddd;
}
.summarizer-pro-result h3 { margin: 0 0 10px; font-size: 18px; color: #333; }
.summarizer-pro-output {
    padding: 15px;
    background: #fff;
    border-left: 4px solid #007cba;
    border-radius: 4px;
    font-size: 16px;
    line-height: 1.6;
    color: #333;
}
.summarizer-pro-error {
    margin-top: 15px;
    padding: 12px;
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
    border-radius: 4px;
}
@media (max-width: 600px) {
    .summarizer-pro-container { margin: 10px; padding: 15px; }
    .summarizer-pro-textarea { font-size: 14px; }
    .summarizer-pro-button { width: 100%; }
}