:root{
  --brand:#d0103a; --brand-d:#a50d2e; --brand-l:#fde8ec;
  --bg:#f5f6f8; --card:#fff; --text:#1b1d22; --muted:#6b7280; --line:#e6e8ec;
  --side:#14161b; --side-2:#1d2027; --side-t:#c9ccd3;
  --ok:#14804a; --ok-l:#e3f5ea; --warn:#b45309; --warn-l:#fdf2e1; --err:#c81e1e; --err-l:#fde8e8; --info:#1d4ed8; --info-l:#e6eefc;
  --r:10px; --sh:0 1px 2px rgba(16,24,40,.06),0 1px 3px rgba(16,24,40,.08);
}
*{box-sizing:border-box}
html,body{margin:0;height:100%}
body{font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;font-size:14px;color:var(--text);background:var(--bg);-webkit-font-smoothing:antialiased}
a{color:var(--brand);text-decoration:none} a:hover{text-decoration:underline}
h1,h2,h3{margin:0 0 .5em;line-height:1.25} h1{font-size:22px} h2{font-size:17px} h3{font-size:15px}
.muted{color:var(--muted)} .small{font-size:12px} .mono{font-family:ui-monospace,Menlo,monospace;font-size:12px}
.hidden{display:none!important}

/* layout */
.app{display:grid;grid-template-columns:248px 1fr;min-height:100vh}
.side{background:var(--side);color:var(--side-t);display:flex;flex-direction:column;position:sticky;top:0;height:100vh;overflow-y:auto}
.logo{display:flex;align-items:center;gap:10px;padding:18px 18px 14px;color:#fff;font-weight:700;font-size:15px;letter-spacing:.2px}
.logo .mark{width:30px;height:30px;border-radius:8px;background:var(--brand);display:grid;place-items:center;font-size:16px}
.logo small{display:block;font-weight:500;font-size:11px;color:#8b8f99}
.nav{padding:4px 10px 20px}
.nav .grp{font-size:10.5px;text-transform:uppercase;letter-spacing:.9px;color:#6f7480;margin:16px 10px 6px}
.nav a{display:flex;align-items:center;gap:10px;padding:8px 10px;border-radius:8px;color:var(--side-t);font-size:13.5px}
.nav a:hover{background:var(--side-2);text-decoration:none;color:#fff}
.nav a.on{background:var(--brand);color:#fff}
.nav a .ic{width:18px;text-align:center;opacity:.9}
.side .foot{margin-top:auto;padding:14px 18px;border-top:1px solid #262a33;font-size:12px}
.main{min-width:0;display:flex;flex-direction:column}
.top{display:flex;align-items:center;gap:12px;padding:12px 28px;background:var(--card);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:5}
.top .grow{flex:1}
.content{padding:24px 28px 60px;max-width:1400px;width:100%}
.burger{display:none;background:none;border:0;font-size:22px;cursor:pointer}

/* components */
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--sh);padding:18px;margin-bottom:18px}
.card.flush{padding:0} .card .hd{display:flex;align-items:center;gap:10px;margin-bottom:12px} .card .hd h2{margin:0;flex:1}
.grid{display:grid;gap:16px} .g2{grid-template-columns:repeat(2,minmax(0,1fr))} .g3{grid-template-columns:repeat(3,minmax(0,1fr))} .g4{grid-template-columns:repeat(4,minmax(0,1fr))} .g5{grid-template-columns:repeat(5,minmax(0,1fr))}
.stat{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:16px;box-shadow:var(--sh)}
.stat .l{font-size:12px;color:var(--muted);margin-bottom:6px} .stat .v{font-size:26px;font-weight:700} .stat .s{font-size:12px;color:var(--muted);margin-top:4px}
.btn{display:inline-flex;align-items:center;gap:6px;border:1px solid var(--line);background:#fff;color:var(--text);padding:8px 14px;border-radius:8px;font:inherit;font-weight:500;cursor:pointer;white-space:nowrap}
.btn:hover{background:#f3f4f6;text-decoration:none} .btn:disabled{opacity:.55;cursor:not-allowed}
.btn.p{background:var(--brand);border-color:var(--brand);color:#fff} .btn.p:hover{background:var(--brand-d)}
.btn.sm{padding:5px 10px;font-size:12.5px} .btn.ghost{border-color:transparent;background:transparent} .btn.danger{color:var(--err)}
input,select,textarea{font:inherit;color:inherit;border:1px solid #d5d8de;border-radius:8px;padding:8px 10px;background:#fff;width:100%}
input:focus,select:focus,textarea:focus{outline:2px solid var(--brand-l);border-color:var(--brand)}
textarea{min-height:90px;resize:vertical}
label{display:block;font-size:12.5px;font-weight:600;margin:0 0 5px;color:#374151}
.f{margin-bottom:12px} .row{display:flex;gap:10px;align-items:flex-end;flex-wrap:wrap} .row>.f{flex:1;min-width:160px;margin-bottom:0}
.check{display:flex;align-items:center;gap:8px;font-weight:500} .check input{width:auto}
.tag{display:inline-block;padding:2px 8px;border-radius:999px;font-size:11.5px;font-weight:600;background:#eef0f3;color:#374151;white-space:nowrap}
.tag.ok{background:var(--ok-l);color:var(--ok)} .tag.warn{background:var(--warn-l);color:var(--warn)} .tag.err{background:var(--err-l);color:var(--err)} .tag.info{background:var(--info-l);color:var(--info)} .tag.brand{background:var(--brand-l);color:var(--brand-d)}
.up{color:var(--ok);font-weight:600} .down{color:var(--err);font-weight:600}
.tabs{display:flex;gap:4px;border-bottom:1px solid var(--line);margin-bottom:16px;flex-wrap:wrap}
.tabs button{border:0;background:none;padding:9px 14px;font:inherit;font-weight:500;color:var(--muted);cursor:pointer;border-bottom:2px solid transparent;margin-bottom:-1px}
.tabs button.on{color:var(--brand);border-color:var(--brand)}

/* table */
.tbl-wrap{overflow:auto;max-height:70vh}
table{border-collapse:collapse;width:100%}
th,td{padding:9px 12px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}
th{font-size:12px;font-weight:600;color:var(--muted);background:#fafbfc;position:sticky;top:0;cursor:pointer;user-select:none;white-space:nowrap;z-index:1}
th.num,td.num{text-align:right}
tr:hover td{background:#fafbfc}
.tbl-tools{display:flex;gap:8px;align-items:center;padding:12px 14px;border-bottom:1px solid var(--line);flex-wrap:wrap}
.tbl-tools input{max-width:260px}
.url{max-width:420px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;display:inline-block;vertical-align:bottom}

/* score ring */
.ring{--v:0;--c:var(--ok);width:92px;height:92px;border-radius:50%;background:conic-gradient(var(--c) calc(var(--v)*1%),#eceef1 0);display:grid;place-items:center}
.ring>div{width:72px;height:72px;border-radius:50%;background:#fff;display:grid;place-items:center;font-size:24px;font-weight:700}
.bar{height:8px;border-radius:9px;background:#eceef1;overflow:hidden} .bar>i{display:block;height:100%;background:var(--brand)}

.checklist .it{display:flex;gap:10px;padding:9px 0;border-bottom:1px solid var(--line)} .checklist .it:last-child{border:0}
.checklist .ic{width:22px;height:22px;border-radius:50%;display:grid;place-items:center;font-size:12px;flex:none;font-weight:700}
.checklist .ic.y{background:var(--ok-l);color:var(--ok)} .checklist .ic.n{background:var(--err-l);color:var(--err)}

.empty{text-align:center;padding:40px 20px;color:var(--muted)}
.empty .big{font-size:36px;margin-bottom:8px}
.spin{width:16px;height:16px;border:2px solid currentColor;border-right-color:transparent;border-radius:50%;display:inline-block;animation:sp .7s linear infinite;vertical-align:-3px}
@keyframes sp{to{transform:rotate(360deg)}}
.loading{padding:40px;text-align:center;color:var(--muted)}

.toast{position:fixed;bottom:20px;right:20px;z-index:100;display:flex;flex-direction:column;gap:8px}
.toast div{background:#1b1d22;color:#fff;padding:11px 16px;border-radius:8px;box-shadow:0 8px 24px rgba(0,0,0,.2);max-width:380px;font-size:13.5px}
.toast div.err{background:var(--err)}
.modal-bg{position:fixed;inset:0;background:rgba(15,17,21,.5);z-index:50;display:grid;place-items:center;padding:20px}
.modal{background:#fff;border-radius:12px;width:min(720px,100%);max-height:88vh;overflow:auto;padding:22px;box-shadow:0 20px 60px rgba(0,0,0,.3)}
.modal .x{float:right;border:0;background:none;font-size:22px;cursor:pointer;color:var(--muted)}

.serp{font-family:arial,sans-serif;max-width:600px;padding:14px;border:1px solid var(--line);border-radius:10px;background:#fff}
.serp .u{font-size:12px;color:#202124} .serp .t{color:#1a0dab;font-size:20px;line-height:1.3;margin:4px 0} .serp .d{color:#4d5156;font-size:14px;line-height:1.58}
pre.code{background:#0f1115;color:#e5e7eb;padding:14px;border-radius:8px;overflow:auto;font-size:12px;max-height:420px;white-space:pre-wrap}
.answer{white-space:pre-wrap;line-height:1.6;background:#fafbfc;border:1px solid var(--line);border-radius:8px;padding:14px;max-height:400px;overflow:auto}
mark{background:#fff3a3;padding:0 2px;border-radius:3px}

.auth{min-height:100vh;display:grid;place-items:center;background:linear-gradient(135deg,#14161b 0%,#2a0d15 100%);padding:20px}
.auth .box{background:#fff;border-radius:14px;padding:32px;width:min(400px,100%);box-shadow:0 20px 60px rgba(0,0,0,.35)}
.auth .logo{color:var(--text);padding:0 0 18px}

@media (max-width:1100px){.g4,.g5{grid-template-columns:repeat(2,minmax(0,1fr))} .g3{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:820px){
  .app{grid-template-columns:1fr} .side{position:fixed;left:-260px;width:248px;z-index:40;transition:left .2s} .side.open{left:0}
  .burger{display:block} .content{padding:16px} .top{padding:10px 16px}
  .g2,.g3{grid-template-columns:1fr} .g4,.g5{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media print{.side,.top,.btn,.tbl-tools{display:none!important} .app{display:block} .card{box-shadow:none;break-inside:avoid}}