:root{--bg:#fff;--fg:#14161a;--muted:#5c636e;--border:#dfe3e8;--accent:#1a56db;--danger:#b42318;--surface:#f7f8fa}@media (prefers-color-scheme:dark){:root{--bg:#0f1115;--fg:#e8eaed;--muted:#9aa1ab;--border:#272b33;--accent:#7aa2f7;--danger:#f97066;--surface:#161920}}*{box-sizing:border-box}body{background:var(--bg);color:var(--fg);margin:0;font:16px/1.5 -apple-system,BlinkMacSystemFont,Segoe UI,Helvetica,Arial,sans-serif}.shell{max-width:720px;margin:0 auto;padding:48px 24px}h1{margin:0 0 8px;font-size:24px}.muted{color:var(--muted)}form{gap:16px;margin:24px 0;display:grid}label{gap:6px;font-size:14px;font-weight:500;display:grid}input[type=email],input[type=password],input[type=text]{border:1px solid var(--border);background:var(--bg);color:var(--fg);border-radius:8px;padding:10px 12px;font-size:16px}button{background:var(--accent);color:#fff;cursor:pointer;border:0;border-radius:8px;justify-self:start;padding:10px 16px;font-size:15px;font-weight:600}.error{color:var(--danger);font-size:14px}.notice{color:var(--muted);font-size:14px}.card{border:1px solid var(--border);background:var(--surface);border-radius:12px;padding:16px}.otp{letter-spacing:4px;font-family:ui-monospace,SF Mono,Menlo,monospace;font-size:20px}table{border-collapse:collapse;width:100%;font-size:14px}th,td{text-align:left;border-bottom:1px solid var(--border);padding:8px}