/* --- Global Styles & Variables --- */
:root {
    --bg-color: #f4f7f9;
    --text-color: #333;
    --primary-color: #007bff;
    --primary-text-color: #fff;
    --card-bg-color: #fff;
    --border-color: #ddd;
    --shadow-color: rgba(0, 0, 0, 0.05);
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

body {
    font-family: var(--font-family);
    margin: 0;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
}

/* --- Header & Footer --- */
header, footer {
    text-align: center;
    padding: 1rem 2rem;
}

header {
    border-bottom: 1px solid var(--border-color);
    background-color: var(--card-bg-color);
}

header h1 {
    margin: 0;
    color: var(--primary-color);
}

header p {
    margin: 0.25rem 0 0;
    color: #666;
}

footer {
    margin-top: 2rem;
    font-size: 0.9rem;
    color: #888;
}

/* --- Main Layout --- */
.container {
    display: flex;
    flex-wrap: wrap; /* Allow items to wrap to the next line on small screens */
    gap: 1.5rem;
    padding: 1.5rem;
    max-width: 1400px;
    margin: 0 auto;
}

/* --- Workspace Styles --- */
.workspace {
    flex: 1; /* Each workspace takes up equal space */
    min-width: 300px; /* Prevent workspaces from getting too narrow */
    background-color: var(--card-bg-color);
    border-radius: 8px;
    padding: 1.5rem;
    box-shadow: 0 4px 12px var(--shadow-color);
    display: flex;
    flex-direction: column;
}

.workspace h2 {
    margin-top: 0;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.75rem;
}

/* --- UI Element Styles --- */
textarea, select {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-family: 'Menlo', 'Consolas', monospace;
    font-size: 0.95rem;
    box-sizing: border-box; /* Ensures padding doesn't affect width */
    resize: vertical; /* Allow vertical resizing only */
}

textarea {
    flex-grow: 1; /* Make textareas fill available vertical space */
}

button {
    display: block;
    width: 100%;
    padding: 0.8rem 1rem;
    margin-top: 1rem;
    background-color: var(--primary-color);
    color: var(--primary-text-color);
    border: none;
    border-radius: 4px;
    font-size: 1rem;
    font-weight: bold;
    cursor: pointer;
    transition: background-color 0.2s ease;
}

button:hover {
    background-color: #0056b3;
}

#copy-script-button {
    background-color: #28a745; /* Green for copy button */
}

#copy-script-button:hover {
    background-color: #218838;
}

.generator-controls {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

#visual-tree-container {
    flex-grow: 1;
    border: 1px dashed var(--border-color);
    border-radius: 4px;
    padding: 1rem;
    overflow-y: auto;
    background-color: #fafafa;
}

#visual-tree-container i {
    color: #888;
}

/* --- Responsive Design --- */
@media (max-width: 900px) {
    .container {
        flex-direction: column;
    }
}