body{--color-bg: #f8fafc;--color-surface: #ffffff;--color-border: #d1d5db;--color-text: #111827;--color-muted: #6b7280;--color-accent: #0ea5e9;--color-overlay: rgba(0, 0, 0, .35);font-family:Helvetica,Arial,sans-serif;background:var(--color-bg);color:var(--color-text)}body.theme-dark{--color-bg: #0f172a;--color-surface: #111827;--color-border: #334155;--color-text: #e2e8f0;--color-muted: #94a3b8;--color-accent: #38bdf8;--color-overlay: rgba(0, 0, 0, .6)}body.accessibility-on{--color-bg: #000000;--color-surface: #000000;--color-border: #ffffff;--color-text: #ffffff;--color-muted: #ffffff;--color-accent: #00ffff;--color-overlay: rgba(0, 0, 0, .7)}button,input,select,textarea{background:var(--color-surface);color:var(--color-text);border:1px solid var(--color-border)}a{color:var(--color-accent)}:focus-visible{outline:2px solid var(--color-accent);outline-offset:2px}