.input-section {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.input-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.input-label {
    font-size: 1rem;
    font-weight: 600;
    color: #333;
}

.text-input {
    width: 100%;
    min-height: 200px;
    padding: 1rem;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    font-size: 1rem;
    line-height: 1.5;
    resize: vertical;
    transition: border-color 0.3s ease;
}

.text-input:focus {
    border-color: #007bff;
    outline: none;
}

.controls {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: 1.5rem;
}

.control-group {
    flex: 1;
    min-width: 200px;
}

.select-control {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    font-size: 1rem;
    background-color: white;
    cursor: pointer;
}

.summarize-btn {
    padding: 1rem 2rem;
    background-color: #007bff;
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.summarize-btn:hover {
    background-color: #0056b3;
}

.summarize-btn:disabled {
    background-color: #ccc;
    cursor: not-allowed;
}

.result-section {
    margin-top: 2rem;
    padding: 1.5rem;
    background-color: #f8f9fa;
    border-radius: 8px;
    display: none;
}

.result-section.active {
    display: block;
}

.word-count {
    font-size: 0.9rem;
    color: #666;
    margin-top: 0.5rem;
}

.loading {
    display: none;
    text-align: center;
    padding: 2rem;
}

.loading.active {
    display: block;
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 4px solid #f3f3f3;
    border-top: 4px solid #007bff;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.error-message {
    color: #dc3545;
    font-size: 0.9rem;
    margin-top: 0.5rem;
    display: none;
}

.error-message.active {
    display: block;
}