/* Dark Mode CSS */
body.dark-mode {
    --bg-main: #111111;
    --bg-card: #1e1e1e;
    --bg-sidebar: #0a0a0a;
    --bg-hover: #262626;
    --bg-input: #1e1e1e;

    --text-primary: #e5e5e5;
    --text-secondary: #aaaaaa;
    --text-muted: #666666;

    --border: #2c2c2c;
    --border-focus: #555555;
    --border-light: #222222;

    --shadow-sm: 0 1px 3px rgba(0,0,0,0.3);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.4);
    --shadow-lg: 0 8px 24px rgba(0,0,0,0.5);
}

body.dark-mode a { color: inherit; }
body.dark-mode .doc-viewer-box iframe { background: #262626; }