:root{--bg:#fbfbf9;--fg:#1d1f21;--muted:#5d6166;--line:#dcdcd6;
--card:#fff;--accent:#1f5fbf;--accent-fg:#fff;--ok:#1d7a3e;--warn:#9a6200;
--err:#b3261e;--info:#3b5b8c;--code-bg:#1e2227;--code-fg:#e6e6e6;
--chip:#eef0f3;color-scheme:light}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){--bg:#131518;--fg:#e8e8e6;
--muted:#a0a4aa;--line:#2e3238;--card:#1b1e22;--accent:#6ea4ff;
--accent-fg:#0d1420;--ok:#5cc985;--warn:#e5ad4c;--err:#ff7a70;
--info:#93b4e6;--code-bg:#0c0e10;--chip:#262a30;color-scheme:dark}}
:root[data-theme="dark"]{--bg:#131518;--fg:#e8e8e6;
--muted:#a0a4aa;--line:#2e3238;--card:#1b1e22;--accent:#6ea4ff;
--accent-fg:#0d1420;--ok:#5cc985;--warn:#e5ad4c;--err:#ff7a70;
--info:#93b4e6;--code-bg:#0c0e10;--chip:#262a30;color-scheme:dark}
button.theme{background:none;border:1px solid var(--line);color:var(--fg);
border-radius:8px;min-width:44px;min-height:44px;font-size:1.1rem;
cursor:pointer;line-height:1}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--fg);font:16px/1.55
system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;min-height:100vh;
display:flex;flex-direction:column}
main{flex:1;width:100%;max-width:1100px;margin:0 auto;padding:16px}
a{color:var(--accent)}
header.site,footer.site{width:100%;max-width:1100px;margin:0 auto;
padding:12px 16px;display:flex;flex-wrap:wrap;gap:8px 18px;
align-items:center}
header.site .logo{font-weight:700;font-size:1.15rem;text-decoration:none;
color:var(--fg);margin-right:auto}
header.site nav{display:flex;flex-wrap:wrap;gap:4px 14px}
header.site nav a,footer.site a{text-decoration:none;padding:10px 0;
display:inline-block;min-height:44px}
footer.site{border-top:1px solid var(--line);color:var(--muted);
font-size:.9rem}
h1{font-size:1.75rem;line-height:1.25;margin:.4em 0 .5em}
h2{font-size:1.3rem;margin:1.6em 0 .6em}
h3{font-size:1.05rem;margin:1.2em 0 .4em}

.lede{font-size:1.1rem;color:var(--muted)}
.card{background:var(--card);border:1px solid var(--line);border-radius:10px;
padding:16px;margin:16px 0}
code{background:var(--chip);padding:1px 5px;border-radius:4px;
font-size:.92em;overflow-wrap:anywhere}
pre{background:var(--code-bg);color:var(--code-fg);padding:12px;
border-radius:8px;overflow:auto;font-size:.85rem;max-width:100%}
pre code{background:none;padding:0;color:inherit;overflow-wrap:normal}
.codewrap{position:relative}
.copy{position:absolute;top:6px;right:6px;min-width:44px;min-height:44px;
border:1px solid #555;background:#2b3036;color:#fff;border-radius:6px;
cursor:pointer;font-size:.8rem}
form.check{display:flex;flex-direction:column;gap:12px}
.modes{display:flex;flex-wrap:wrap;gap:8px;border:0;padding:0;margin:0}
.modes label{display:inline-flex;align-items:center;gap:6px;
min-height:44px;padding:0 12px;border:1px solid var(--line);
border-radius:8px;cursor:pointer;background:var(--card)}
.modes input{margin:0}
.modes label:has(input:checked){border-color:var(--accent);
outline:2px solid var(--accent)}
input[type=text],input[type=email],input[type=url],textarea{width:100%;
font:inherit;padding:12px;border:1px solid var(--line);border-radius:8px;
background:var(--card);color:var(--fg)}
textarea{min-height:180px;font-family:ui-monospace,Menlo,monospace;
font-size:.85rem}
button.primary{font:inherit;font-weight:600;min-height:48px;padding:0 20px;
border:0;border-radius:8px;background:var(--accent);color:var(--accent-fg);
cursor:pointer}
.field label{display:block;font-weight:600;margin-bottom:4px}
.hint{color:var(--muted);font-size:.9rem;margin:4px 0 0}
.paste-only{display:none}
form.check:has(input[value=paste]:checked) .paste-only{display:block}
form.check:has(input[value=paste]:checked) .email-field{display:none}
.ts-wrap{width:100%}
.cf-turnstile{display:inline-block}
@media (max-width:640px){.cf-turnstile{zoom:.8}
button.primary{width:100%}}
.banner{border-radius:8px;padding:12px 14px;margin:12px 0;
border:1px solid var(--line);background:var(--card)}
.banner.err{border-color:var(--err)}.banner.warn{border-color:var(--warn)}
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(120px,1fr));
gap:10px;margin:12px 0}
.stat{background:var(--card);border:1px solid var(--line);border-radius:10px;
padding:12px}
.stat b{display:block;font-size:1.6rem;line-height:1.1}
.stat span{color:var(--muted);font-size:.85rem}
.sev{display:inline-block;font-size:.75rem;font-weight:700;padding:2px 8px;
border-radius:99px;text-transform:uppercase;letter-spacing:.03em;
background:var(--chip)}
.sev.error{color:var(--err)}.sev.warning{color:var(--warn)}
.sev.info{color:var(--info)}
.tabs{display:flex;gap:6px;overflow-x:auto;padding:4px 0;
position:sticky;top:0;background:var(--bg);z-index:3;
border-bottom:1px solid var(--line)}
.tabs a{white-space:nowrap;padding:10px 12px;min-height:44px;
text-decoration:none;border-radius:6px}
.tabs a:hover{background:var(--chip)}
.scroll{overflow:auto;max-width:100%;border:1px solid var(--line);
border-radius:8px;max-height:75vh}
table{border-collapse:collapse;width:100%;font-size:.9rem}
th,td{padding:8px 10px;border-bottom:1px solid var(--line);text-align:left;
vertical-align:top}
tr:last-of-type td{border-bottom:0}
table.matrix th,table.matrix td{white-space:nowrap;text-align:center}
table.matrix thead th{position:sticky;top:0;background:var(--card);z-index:2}
table.matrix th.url{position:sticky;left:0;background:var(--card);z-index:1;
text-align:left;max-width:280px;overflow:hidden;text-overflow:ellipsis}
table.matrix thead th.url{z-index:3}
.cell{display:inline-block;min-width:44px;min-height:32px;line-height:32px;
border-radius:6px;font-weight:700;text-decoration:none}
.c-ok,.c-self{color:var(--ok)}.c-missing,.c-non200,.c-redirect,
.c-noindex,.c-canonical,.c-no-return{color:var(--err)}
.c-unchecked{color:var(--muted)}
.mlist{display:none}
.legend{display:flex;flex-wrap:wrap;gap:6px 14px;font-size:.85rem;
color:var(--muted);margin:8px 0}
ul.issues{list-style:none;padding:0;margin:0}
ul.issues li{border-bottom:1px solid var(--line);padding:12px 0;
max-width:none}
ul.issues li:last-of-type{border-bottom:0}
ul.issues ul.items{list-style:disc;margin:4px 0 0;padding-left:20px}
ul.issues ul.items li{border:0;padding:2px 0;overflow-wrap:anywhere}
.url{overflow-wrap:anywhere}
.badges{display:flex;flex-wrap:wrap;gap:6px;margin-top:6px}
.badge{font-size:.8rem;padding:2px 8px;border-radius:6px;background:var(--chip)}
details{border:1px solid var(--line);border-radius:8px;padding:0 12px;
margin:8px 0;background:var(--card)}
details summary{cursor:pointer;min-height:44px;display:flex;
align-items:center;gap:8px;overflow-wrap:anywhere}
.progress{height:10px;background:var(--chip);border-radius:99px;
overflow:hidden}
.progress i{display:block;height:100%;background:var(--accent);width:0;
transition:width .4s}
.cols{display:grid;gap:16px;grid-template-columns:repeat(auto-fit,
minmax(260px,1fr))}
.filters{display:flex;flex-wrap:wrap;gap:6px;margin:8px 0}
.filters button{min-height:44px;padding:0 14px;border:1px solid var(--line);
border-radius:8px;background:var(--card);color:var(--fg);font:inherit;
cursor:pointer}
.filters button[aria-pressed=true]{border-color:var(--accent);
outline:2px solid var(--accent)}
@media (max-width:640px){
h1{font-size:1.45rem}
.mtable{display:none}.mlist{display:block}
table.stack thead{display:none}
table.stack,table.stack tbody,table.stack tr,table.stack td{display:block;
width:100%}
table.stack tr{border-bottom:1px solid var(--line);padding:8px 0}
table.stack td{border:0;padding:3px 10px}
table.stack td[data-label]::before{content:attr(data-label) ": ";
font-weight:600;color:var(--muted)}}