@media (min-width: 769px) {
    .input-area {
        position: fixed !important;
        bottom: 0 !important;
        left: 260px !important;
        right: 0 !important;
        width: auto !important;
        max-width: none !important;
        margin: 0 !important;
        padding: 12px 40px !important;
        z-index: 100 !important;
    }
    
    .input-area textarea {
        flex: 1 !important;
        width: 100% !important;
        max-width: none !important;
    }
    
    .input-area button {
        flex-shrink: 0 !important;
    }
    
    .header,
    .chat-container,
    .messages {
        padding-left: 40px !important;
        padding-right: 40px !important;
    }
}

@media (max-width: 768px) {
    .input-area {
        position: fixed !important;
        bottom: 0 !important;
        left: 0 !important;
        right: 0 !important;
        width: 100% !important;
        padding: 10px 12px !important;
        z-index: 100 !important;
    }
    
    .input-area textarea {
        font-size: 14px !important;
    }
}