:root{--bg: #0f172a;--panel: #1e293b;--text: #e2e8f0;--muted: #94a3b8;--accent: #38bdf8;--good: #22c55e;--bad: #f87171;--border: #334155;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);min-height:100vh}.arabic{direction:rtl;font-family:Amiri,Scheherazade New,Traditional Arabic,serif;font-size:2.5rem;line-height:2}button{background:var(--accent);color:#0f172a;border:none;border-radius:8px;padding:10px 18px;font-size:1rem;font-weight:600;cursor:pointer}button:disabled{opacity:.4;cursor:not-allowed}button.secondary{background:var(--panel);color:var(--text);border:1px solid var(--border)}