:root{--bg:#FFFFFF;--surface:#F5F3EF;--text:#1C1A17;--border:#D9D4CC;--accent:#1C5BD9;--green:#1B7A3D;--yellow:#B7860B;--red:#C0392B;--muted:#7A746B}*{box-sizing:border-box;border-radius:0!important}html,body,#root{margin:0;padding:0;height:100%;background:var(--surface);color:var(--text);font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;font-size:15px}.mono{font-family:ui-monospace,SFMono-Regular,Consolas,Liberation Mono,monospace}button{font-family:inherit;font-size:14px;cursor:pointer;border:1px solid var(--border);background:var(--bg);color:var(--text);padding:8px 12px}button:active{transform:translateY(1px)}button.primary{background:var(--accent);color:#fff;border-color:var(--accent);font-weight:600}button.danger{background:var(--red);color:#fff;border-color:var(--red);font-weight:600}button.green{background:var(--green);color:#fff;border-color:var(--green);font-weight:600}button.yellow{background:var(--yellow);color:#fff;border-color:var(--yellow);font-weight:600}button.ghost{background:var(--bg)}button:disabled{opacity:.4;cursor:not-allowed}input,select{font-family:inherit;font-size:14px;padding:7px 8px;border:1px solid var(--border);background:var(--bg);color:var(--text);width:100%}table{border-collapse:collapse;width:100%;background:var(--bg)}th,td{border:1px solid var(--border);padding:5px 8px;text-align:left;font-size:13px;vertical-align:top}th{background:var(--surface);font-weight:600;position:sticky;top:0}td.num,th.num{text-align:right;font-family:ui-monospace,Consolas,monospace}.tag{display:inline-block;padding:1px 6px;border:1px solid var(--border);font-size:12px}.tag.green{background:#e6f2ea;color:var(--green);border-color:var(--green)}.tag.yellow{background:#fbf1d8;color:var(--yellow);border-color:var(--yellow)}.tag.red{background:#f7e2df;color:var(--red);border-color:var(--red)}.tag.gray{background:var(--surface);color:var(--muted)}a.link{color:var(--accent);text-decoration:none}.row{display:flex;gap:8px;flex-wrap:wrap;align-items:center}.col{display:flex;flex-direction:column;gap:8px}.card{background:var(--bg);border:1px solid var(--border);padding:12px}.muted{color:var(--muted)}.small{font-size:12px}#app{min-height:100vh;display:flex;flex-direction:column}.topbar{display:flex;align-items:center;justify-content:space-between;gap:8px;background:var(--text);color:#fff;padding:10px 14px}.topbar .brand{font-weight:700;letter-spacing:.5px}.topbar .who{font-size:13px;opacity:.85}.topbar button{background:transparent;color:#fff;border-color:#5a554d;padding:6px 10px}.login-wrap{flex:1;display:flex;align-items:center;justify-content:center;padding:20px}.login-card{width:100%;max-width:360px;background:var(--bg);border:1px solid var(--border);padding:22px}.login-card h1{font-size:18px;margin:0 0 4px}.login-card .field{margin-top:14px}.login-card label{font-size:13px;display:block;margin-bottom:5px}.login-err{color:var(--red);font-size:13px;margin-top:12px;min-height:16px}.hint{margin-top:16px;font-size:12px;color:var(--muted);line-height:1.5;border-top:1px solid var(--border);padding-top:10px}.mgr{flex:1;display:flex;min-height:0}.nav{width:210px;background:var(--bg);border-right:1px solid var(--border);flex-shrink:0}.nav a{display:block;padding:11px 14px;border-bottom:1px solid var(--border);color:var(--text);text-decoration:none;font-size:14px;cursor:pointer}.nav a.active{background:var(--accent);color:#fff;font-weight:600}.nav-sep{height:10px;background:var(--surface);border-top:1px solid var(--border);border-bottom:1px solid var(--border)}.content{flex:1;padding:16px;overflow:auto}.content h2{font-size:17px;margin:0 0 12px}.toolbar{display:flex;gap:8px;flex-wrap:wrap;align-items:center;margin-bottom:12px}.table-scroll{overflow:auto;border:1px solid var(--border)}.op{flex:1;display:flex;flex-direction:column;padding:14px;gap:12px;max-width:640px;margin:0 auto;width:100%}.op .pick{display:grid;grid-template-columns:1fr;gap:8px}.op .opt{padding:16px;border:1px solid var(--border);background:var(--bg);text-align:left;font-size:16px;cursor:pointer}.op .opt.sel{border-color:var(--accent);background:#eef3fd}.timer{font-size:46px;text-align:center;padding:14px 0;letter-spacing:2px}.bigbtn{padding:22px;font-size:18px;font-weight:700;width:100%}.op-grid2{display:grid;grid-template-columns:1fr 1fr;gap:10px}.op-grid3{display:grid;grid-template-columns:1fr 1fr 1fr;gap:10px}.crumbs{font-size:13px;color:var(--muted)}.ovl{position:fixed;top:0;right:0;bottom:0;left:0;background:#00000073;display:flex;align-items:center;justify-content:center;padding:16px;z-index:50}.modal{background:var(--bg);border:1px solid var(--border);width:100%;max-width:420px;padding:18px}.modal.wide{max-width:940px;max-height:92vh;overflow:auto}.modal h3{margin:0 0 12px;font-size:16px}.modal .actions{display:flex;gap:8px;justify-content:flex-end;margin-top:16px}.stack{display:flex;flex-direction:column;gap:10px}.banner{padding:8px 14px;font-size:13px;text-align:center}.banner.local{background:#fbf1d8;color:var(--yellow);border-bottom:1px solid var(--yellow)}.banner.cloud{background:#e6f2ea;color:var(--green);border-bottom:1px solid var(--green)}@media (max-width:640px){.nav{width:64px}.nav a{padding:11px 6px;font-size:11px;text-align:center}.op-grid3{grid-template-columns:1fr}}