body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

#chatMessages {
    background-color: #f8f9fa;
    height: calc(100vh - 150px);
}

.message {
    max-width: 80%;
    margin-bottom: 15px;
    padding: 10px 15px;
    border-radius: 18px;
    position: relative;
}

.user-message {
    background-color: #5aff44;
    color: rgb(5, 5, 5);
    margin-left: auto;
    border-bottom-right-radius: 5px;
}

.ai-message {
    background-color: #e9ecef;
    margin-right: auto;
    border-bottom-left-radius: 5px;
}

#chatHistory .list-group-item {
    border: none;
    border-radius: 0;
    border-bottom: 1px solid #dee2e6;
    cursor: pointer;
}

#chatHistory .list-group-item:hover {
    background-color: #f1f1f1;
}

#chatHistory .list-group-item.active {
    background-color: #e9ecef;
    color: #495057;
    border-left: 3px solid #007bff;
}

.timestamp {
    font-size: 0.75rem;
    color: #6c757d;
    margin-top: 5px;
    display: block;
}

table {
    font-size: 0.875rem;
}

.ai-message table {
    background-color: white;
}

/* Loading overlay styles */
#loadingOverlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: white;
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
}
#mainContent {
    display: none;
}

/* Loading indicator */
#loadingIndicator {
    color: #666;
}

.spinner-border {
    width: 1rem;
    height: 1rem;
    border-width: 0.15em;
}