:root{--bg: #f5f6f8;--bg-elev: #ffffff;--bg-sunken: #eef0f3;--border: #e2e5ea;--border-strong: #cfd4dc;--text: #1a1d24;--text-dim: #5b6470;--text-faint: #8b94a1;--primary: #3b5bdb;--primary-hover: #364fc7;--primary-soft: #e7ecfd;--danger: #e03131;--danger-soft: #fdeaea;--success: #2f9e44;--success-soft: #e6f5ea;--warn: #e8930c;--warn-soft: #fbf0dc;--shadow: 0 1px 2px rgba(16, 24, 40, .06), 0 1px 3px rgba(16, 24, 40, .1);--shadow-lg: 0 10px 30px rgba(16, 24, 40, .18);--radius: 10px;--radius-sm: 7px;--sidebar-w: 232px}@media (prefers-color-scheme: dark){:root{--bg: #14161a;--bg-elev: #1c1f26;--bg-sunken: #22262e;--border: #2c313a;--border-strong: #3a4048;--text: #e8eaed;--text-dim: #a3acb9;--text-faint: #737c88;--primary: #5c7cfa;--primary-hover: #748ffc;--primary-soft: #23304f;--danger: #ff6b6b;--danger-soft: #3a2224;--success: #51cf66;--success-soft: #1e3325;--warn: #ffc078;--warn-soft: #3a2f1c;--shadow: 0 1px 2px rgba(0, 0, 0, .4);--shadow-lg: 0 12px 34px rgba(0, 0, 0, .55)}}*{box-sizing:border-box}html,body,#root{height:100%}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Inter,system-ui,sans-serif;font-size:14px;line-height:1.5;color:var(--text);background:var(--bg);-webkit-font-smoothing:antialiased}a{color:var(--primary);text-decoration:none}a:hover{text-decoration:underline}h1,h2,h3,h4{margin:0;font-weight:650}input,select,textarea,button{font:inherit}.app{display:flex;min-height:100%}.sidebar{width:var(--sidebar-w);flex:0 0 var(--sidebar-w);background:var(--bg-elev);border-right:1px solid var(--border);display:flex;flex-direction:column;position:sticky;top:0;height:100vh}.sidebar .brand{padding:18px 20px 14px;font-weight:750;font-size:15px;letter-spacing:-.01em;display:flex;align-items:center;gap:9px}.sidebar .brand .dot{width:10px;height:10px;border-radius:50%;background:var(--primary)}.nav{padding:6px 10px;display:flex;flex-direction:column;gap:2px}.nav a{display:flex;align-items:center;gap:10px;padding:9px 12px;border-radius:var(--radius-sm);color:var(--text-dim);font-weight:550;text-decoration:none}.nav a:hover{background:var(--bg-sunken);color:var(--text)}.nav a.active{background:var(--primary-soft);color:var(--primary)}.nav a .ico{width:18px;text-align:center;opacity:.9}.nav a .badge-count{margin-left:auto}.sidebar .foot{margin-top:auto;padding:12px;border-top:1px solid var(--border)}.nav-sep{height:1px;background:var(--border);margin:8px 12px}.nav .sub{display:flex;flex-direction:column;gap:2px;margin:1px 0 3px}.nav .sub a{padding:7px 12px 7px 40px;font-size:13.5px;font-weight:500}.nav a.quiz-head{padding-left:26px;font-weight:650;color:var(--text)}.nav a.quiz-head .ico{font-size:12px}.main{flex:1 1 auto;min-width:0;display:flex;flex-direction:column}.topbar{height:56px;flex:0 0 56px;display:flex;align-items:center;gap:14px;padding:0 24px;border-bottom:1px solid var(--border);background:var(--bg-elev);position:sticky;top:0;z-index:5}.topbar h1{font-size:16px}.topbar .spacer{flex:1}.content{padding:24px;max-width:1200px;width:100%;margin:0 auto}.card{background:var(--bg-elev);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow)}.card-pad{padding:18px}.card-head{display:flex;align-items:center;gap:12px;padding:14px 18px;border-bottom:1px solid var(--border)}.card-head h3{font-size:14px}.card-head .spacer{flex:1}.grid{display:grid;gap:16px}.grid.cols-4{grid-template-columns:repeat(4,1fr)}.grid.cols-3{grid-template-columns:repeat(3,1fr)}.grid.cols-2{grid-template-columns:repeat(2,1fr)}@media (max-width: 900px){.grid.cols-4,.grid.cols-3{grid-template-columns:repeat(2,1fr)}}@media (max-width: 620px){.grid.cols-4,.grid.cols-3,.grid.cols-2{grid-template-columns:1fr}}.stat{padding:16px 18px}.stat .label{color:var(--text-dim);font-size:12.5px;font-weight:600;text-transform:uppercase;letter-spacing:.03em}.stat .value{font-size:28px;font-weight:700;margin-top:6px;letter-spacing:-.02em}.stat .sub{color:var(--text-faint);font-size:12.5px;margin-top:2px}.table-wrap{overflow-x:auto}table.tbl{width:100%;border-collapse:collapse;font-size:13.5px}table.tbl th{text-align:left;font-weight:600;color:var(--text-dim);padding:10px 14px;border-bottom:1px solid var(--border);white-space:nowrap;font-size:12.5px;text-transform:uppercase;letter-spacing:.02em}table.tbl td{padding:11px 14px;border-bottom:1px solid var(--border);vertical-align:middle}table.tbl tr:last-child td{border-bottom:none}table.tbl tbody tr:hover{background:var(--bg-sunken)}table.tbl tr.clickable{cursor:pointer}.td-mono{font-family:SF Mono,ui-monospace,Menlo,Consolas,monospace;font-size:12.5px}.td-dim{color:var(--text-dim)}.td-actions{text-align:right;white-space:nowrap}.btn{display:inline-flex;align-items:center;justify-content:center;gap:7px;padding:8px 14px;border-radius:var(--radius-sm);border:1px solid var(--border-strong);background:var(--bg-elev);color:var(--text);font-weight:600;cursor:pointer;white-space:nowrap;transition:background .12s,border-color .12s}.btn:hover{background:var(--bg-sunken)}.btn:disabled{opacity:.5;cursor:not-allowed}.btn.primary{background:var(--primary);border-color:var(--primary);color:#fff}.btn.primary:hover{background:var(--primary-hover)}.btn.danger{color:var(--danger);border-color:var(--border-strong)}.btn.danger:hover{background:var(--danger-soft);border-color:var(--danger)}.btn.sm{padding:5px 10px;font-size:12.5px}.btn.ghost{border-color:transparent;background:transparent}.btn.ghost:hover{background:var(--bg-sunken)}.btn-icon{padding:6px 8px}.badge{display:inline-flex;align-items:center;gap:5px;padding:2px 9px;border-radius:999px;font-size:12px;font-weight:650;line-height:1.7;background:var(--bg-sunken);color:var(--text-dim)}.badge.blue{background:var(--primary-soft);color:var(--primary)}.badge.green{background:var(--success-soft);color:var(--success)}.badge.red{background:var(--danger-soft);color:var(--danger)}.badge.warn{background:var(--warn-soft);color:var(--warn)}.badge.gray{background:var(--bg-sunken);color:var(--text-faint)}.badge .dot{width:7px;height:7px;border-radius:50%;background:currentColor}.field{display:flex;flex-direction:column;gap:6px;margin-bottom:14px}.field label{font-weight:600;font-size:13px;color:var(--text-dim)}.field .hint{font-size:12px;color:var(--text-faint)}.input,.select,.textarea{width:100%;padding:8px 11px;border-radius:var(--radius-sm);border:1px solid var(--border-strong);background:var(--bg);color:var(--text)}.input:focus,.select:focus,.textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-soft)}.textarea{min-height:74px;resize:vertical}.row{display:flex;gap:12px;flex-wrap:wrap}.row>.field{flex:1;min-width:120px}.inline{display:flex;align-items:center;gap:8px}.switch{position:relative;display:inline-block;width:40px;height:22px}.switch input{opacity:0;width:0;height:0}.switch .track{position:absolute;top:0;right:0;bottom:0;left:0;border-radius:999px;background:var(--border-strong);cursor:pointer;transition:background .15s}.switch .track:before{content:"";position:absolute;height:16px;width:16px;left:3px;top:3px;border-radius:50%;background:#fff;transition:transform .15s}.switch input:checked+.track{background:var(--success)}.switch input:checked+.track:before{transform:translate(18px)}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#0a0c1080;display:flex;align-items:flex-start;justify-content:center;padding:60px 16px;z-index:50;overflow-y:auto}.modal{background:var(--bg-elev);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow-lg);width:100%;max-width:520px}.modal.wide{max-width:700px}.modal-head{display:flex;align-items:center;padding:16px 20px;border-bottom:1px solid var(--border)}.modal-head h3{font-size:15px}.modal-head .spacer{flex:1}.modal-body{padding:20px}.modal-foot{display:flex;justify-content:flex-end;gap:10px;padding:14px 20px;border-top:1px solid var(--border)}.toasts{position:fixed;bottom:20px;right:20px;display:flex;flex-direction:column;gap:10px;z-index:100}.toast{background:var(--bg-elev);border:1px solid var(--border);border-left:3px solid var(--primary);border-radius:var(--radius-sm);box-shadow:var(--shadow-lg);padding:12px 16px;min-width:260px;max-width:380px;display:flex;gap:10px;align-items:flex-start}.toast.error{border-left-color:var(--danger)}.toast.success{border-left-color:var(--success)}.toast .msg{flex:1;font-size:13px}.toast .ttl{font-weight:650}.muted{color:var(--text-dim)}.faint{color:var(--text-faint)}.mono{font-family:SF Mono,ui-monospace,Menlo,Consolas,monospace}.empty{text-align:center;color:var(--text-faint);padding:40px 20px}.spinner{width:18px;height:18px;border:2px solid var(--border-strong);border-top-color:var(--primary);border-radius:50%;animation:spin .7s linear infinite;display:inline-block}.spinner.lg{width:30px;height:30px;border-width:3px}@keyframes spin{to{transform:rotate(360deg)}}.center-screen{display:flex;align-items:center;justify-content:center;min-height:100vh}.page-head{display:flex;align-items:center;gap:12px;margin-bottom:18px}.page-head h2{font-size:20px;letter-spacing:-.01em}.page-head .spacer{flex:1}.crumbs{font-size:13px;color:var(--text-dim);margin-bottom:4px}.crumbs a{color:var(--text-dim)}.stack{display:flex;flex-direction:column;gap:16px}.tabs{display:flex;gap:4px;border-bottom:1px solid var(--border);margin-bottom:18px}.tabs button{padding:9px 14px;border:none;background:none;cursor:pointer;color:var(--text-dim);font-weight:600;border-bottom:2px solid transparent;margin-bottom:-1px}.tabs button:hover{color:var(--text)}.tabs button.active{color:var(--primary);border-bottom-color:var(--primary)}.chip-row{display:flex;gap:8px;flex-wrap:wrap;align-items:center}.kv{display:grid;grid-template-columns:max-content 1fr;gap:6px 16px;font-size:13px}.kv dt{color:var(--text-dim)}.kv dd{margin:0}.truncate{max-width:320px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.login-card{width:100%;max-width:380px;padding:28px}.login-card h2{font-size:18px;margin-bottom:4px}.login-card p{color:var(--text-dim);margin:0 0 20px;font-size:13px}