/* UDAP Chatbot Customizer Styles (Solid Colors Only) */
#udap-chatbot-customizer {
    display: grid;
    grid-template-columns: 350px 1fr;
    gap: 30px;
    background: #f9f9f9;
    padding: 20px;
    border-radius: 8px;
    border: 1px solid #ddd;
}

/* --- Controls Panel (Left Side) --- */
.udap-customizer-controls h3, .udap-customizer-controls h4 {
    margin-top: 0;
    margin-bottom: 15px;
    border-bottom: 1px solid #e0e0e0;
    padding-bottom: 10px;
}
.udap-control-group {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
}
.udap-control-group label {
    font-weight: 500;
    color: #333;
}
.udap-control-group input[type="color"] {
    width: 50px;
    height: 35px;
    border: 1px solid #ccc;
    border-radius: 4px;
    cursor: pointer;
    padding: 2px;
}
.udap-control-group.radio-group {
    justify-content: flex-start;
    gap: 20px;
}

/* Background Choices */
.udap-bg-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(80px, 1fr));
    gap: 10px;
    margin-bottom: 20px;
}
.udap-bg-item {
    width: 80px;
    height: 60px;
    border: 3px solid transparent;
    border-radius: 6px;
    cursor: pointer;
    background-color: #e0e0e0;
    background-size: cover;
    background-position: center;
    transition: border-color 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    color: #555;
}
.udap-bg-item.active {
    border-color: #0073aa;
}
.udap-bg-item.upload-btn {
    font-size: 30px;
    background-color: #e9e9e9;
}

/* Action Buttons */
.udap-customizer-actions {
    margin-top: 20px;
    display: flex;
    gap: 10px;
}
#udap-skin-feedback {
    margin-top: 15px;
    padding: 10px;
    border-radius: 4px;
    display: none;
}
#udap-skin-feedback.success { background-color: #d4edda; color: #155724; }
#udap-skin-feedback.error { background-color: #f8d7da; color: #721c24; }
#udap-skin-feedback.saving { background-color: #e2e3e5; color: #383d41; }

/* --- Preview Pane (Right Side) --- */
.udap-customizer-preview {
    background: #fff;
    border-radius: 12px;
    border: 1px solid var(--border-color, #e0e0e0);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    height: 600px;
}
.udap-preview-window {
    flex-grow: 1;
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    background-size: cover;
    background-position: center;
    background-color: var(--chat-bg-color, #fff);
}
.udap-preview-bubble {
    padding: 10px 15px;
    border-radius: 18px;
    max-width: 75%;
    line-height: 1.5;
    border: 2px solid transparent;
}
.udap-preview-bubble.ai {
    align-self: flex-start;
    background-color: var(--ai-bubble-bg, #f1f3f5);
    color: var(--ai-bubble-text, #2c3e50);
    border-color: var(--ai-bubble-border-color, #e2e8f0);
    border-bottom-left-radius: 4px;
}
.udap-preview-bubble.user {
    align-self: flex-end;
    background-color: var(--user-bubble-bg, #007bff);
    color: var(--user-bubble-text, #ffffff);
    border-color: var(--user-bubble-border-color, #0056b3);
    border-bottom-right-radius: 4px;
}
.udap-preview-form {
    padding: 15px;
    background-color: #fff;
    border-top: 1px solid var(--border-color, #e0e0e0);
}
.udap-preview-input {
    width: 100%;
    border: 1px solid var(--border-color, #e0e0e0);
    padding: 10px;
    border-radius: 20px;
    background-color: var(--udap-input-bg, #ffffff);
    color: var(--udap-input-text, #2c3e50);
    box-sizing: border-box;
}

@media (max-width: 900px) {
    #udap-chatbot-customizer {
        grid-template-columns: 1fr;
    }
}