/* Explain: Theme design tokens (colors, fonts) — single source of truth. */
:root {
    --primary-color: #ea580c; /* Mars Orange */
    --primary-hover: #c2410c;
    --secondary-color: #1e293b;
    --accent-color: #ef4444;
    --background-color: #0b0f19; /* Deep space black/blue */
    --surface-color: #1e293b;
    --text-color: #f8fafc;
    --text-muted: #94a3b8;
    --border-color: #334155;
    --font-heading: 'Rajdhani', sans-serif;
    --font-body: 'Inter', sans-serif;
    --chat-panel: #12182a;
    --chat-deep: #0a0e18;
    --chat-elevated: #1a2332;
}