* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    line-height: 1.6;
    color: #333;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    min-height: 100vh;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
}

header {
    text-align: center;
    margin-bottom: 40px;
    padding: 40px 0;
}

header h1 {
    font-size: 2.5rem;
    color: #2c3e50;
    margin-bottom: 10px;
    font-weight: 700;
}

header p {
    font-size: 1.1rem;
    color: #7f8c8d;
    max-width: 600px;
    margin: 0 auto;
}

.main-content {
    background: white;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    padding: 30px;
    margin-bottom: 40px;
}

.input-section {
    margin-bottom: 30px;
}

.content-section {
    position: relative;
    margin-bottom: 20px;
}

.content-section label {
    display: block;
    font-weight: 600;
    color: #2c3e50;
    margin-bottom: 8px;
    font-size: 1.1rem;
}

#question-input {
    width: 100%;
    padding: 15px;
    border: 2px solid #e1e8ed;
    border-radius: 8px;
    font-size: 16px;
    font-family: inherit;
    resize: vertical;
    transition: border-color 0.3s ease;
    background: #fafbfc;
}

#question-input:focus {
    outline: none;
    border-color: #3498db;
    background: white;
}

.loading-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.9);
    display: none;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    font-weight: 600;
    color: #3498db;
    font-size: 1.1rem;
}

.loading-overlay.active {
    display: flex;
}

.controls {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 25px;
}

.control-group label {
    display: block;
    font-weight: 600;
    color: #2c3e50;
    margin-bottom: 8px;
    font-size: 1.1rem;
}

.control-group select {
    width: 100%;
    padding: 12px;
    border: 2px solid #e1e8ed;
    border-radius: 8px;
    font-size: 16px;
    background: #fafbfc;
    cursor: pointer;
    transition: border-color 0.3s ease;
}

.control-group select:focus {
    outline: none;
    border-color: #3498db;
    background: white;
}

.generate-button {
    width: 100%;
    padding: 15px;
    background: #3498db;
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.generate-button:hover {
    background: #2980b9;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(52, 152, 219, 0.3);
}

.generate-button:disabled {
    background: #bdc3c7;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.result-section {
    margin-top: 30px;
    padding: 25px;
    background: #f8f9fa;
    border-radius: 8px;
    border-left: 4px solid #3498db;
    transition: all 0.3s ease;
}

.result-section.hidden {
    display: none;
}

.result-content {
    font-size: 1rem;
    line-height: 1.8;
    color: #2c3e50;
}

.result-content h1, .result-content h2, .result-content h3 {
    color: #2c3e50;
    margin: 20px 0 10px 0;
}

.result-content p {
    margin-bottom: 15px;
}

.result-content ul, .result-content ol {
    margin: 15px 0;
    padding-left: 30px;
}

.result-content code {
    background: #ecf0f1;
    padding: 2px 6px;
    border-radius: 4px;
    font-family: 'Monaco', 'Menlo', monospace;
}

.result-content pre {
    background: #2c3e50;
    color: white;
    padding: 15px;
    border-radius: 6px;
    overflow-x: auto;
    margin: 15px 0;
}

footer {
    margin-top: 40px;
}

.info-section {
    background: white;
    padding: 30px;
    margin-bottom: 20px;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
}

.info-section h3 {
    color: #2c3e50;
    font-size: 1.4rem;
    margin-bottom: 15px;
    font-weight: 600;
}

.info-section p {
    color: #5a6c7d;
    margin-bottom: 15px;
}

.faq-item {
    margin-bottom: 20px;
}

.faq-item h4 {
    color: #34495e;
    font-size: 1.1rem;
    margin-bottom: 8px;
    font-weight: 600;
}

@media (max-width: 768px) {
    .container {
        padding: 15px;
    }
    
    header h1 {
        font-size: 2rem;
    }
    
    .controls {
        grid-template-columns: 1fr;
    }
    
    .main-content {
        padding: 20px;
    }
}