/* Responsive Design */
@media (max-width: 1200px) {
    .left-panel {
        width: min(420px, 45vw);
        min-width: 300px;
    }
    
    .header {
        padding: 20px 20px 16px;
    }
    
    .header h1 {
        font-size: 26px;
        margin-bottom: 6px;
    }
    
    .header p {
        font-size: 13px;
    }
    
    .input-section {
        padding: 20px 18px;
        gap: 18px;
    }
}

@media (max-width: 1024px) {
    .container {
        flex-direction: column;
    }
    
    .left-panel {
        width: 100%;
        height: 50vh;
        min-width: unset;
        max-width: unset;
    }
    
    .right-panel {
        height: 50vh;
    }
    
    .header {
        padding: 18px 16px 14px;
    }
    
    .header h1 {
        font-size: 24px;
        margin-bottom: 6px;
    }
    
    .header p {
        font-size: 13px;
    }
    
    .input-section {
        padding: 18px 16px;
        gap: 16px;
    }
}

@media (max-width: 768px) {
    .left-panel {
        height: 60vh;
    }
    
    .right-panel {
        height: 40vh;
    }
    
    .header {
        padding: 16px 14px 12px;
    }
    
    .header h1 {
        font-size: 22px;
        margin-bottom: 5px;
    }
    
    .header p {
        font-size: 12px;
    }
    
    .input-section {
        padding: 16px 14px;
        gap: 14px;
    }
    
    #questionInput {
        min-height: 100px;
        padding: 14px;
    }
}

@media (max-width: 600px) {
    .header {
        padding: 14px 12px 10px;
    }
    
    .header h1 {
        font-size: 20px;
        margin-bottom: 4px;
    }
    
    .header p {
        font-size: 11px;
    }
    
    .input-section {
        padding: 14px 12px;
        gap: 12px;
    }
    
    .button-group {
        flex-direction: column;
        gap: 12px;
    }
    
    .btn {
        padding: 14px 20px;
        font-size: 14px;
    }
}