:root{
  --text:#1f2937;--muted:#6b7280;--border:#e5e7eb;--soft:#f6f7f9;
  --blue:#0848a8;--blue-hover:#063a88;--orange:#f85810;
  --ok:#0f7a4a;--ok-bg:#ecfdf3;--bad:#b42318;--bad-bg:#fef3f2;
  --font:system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,"Liberation Mono",monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:#fff;color:var(--text);font:16px/1.65 var(--font);min-height:100vh;display:flex;flex-direction:column}
a{color:var(--blue)}a:hover{color:var(--orange)}
h1,h2,h3{line-height:1.25;color:#111827;margin:0 0 .5em}
h1{font-size:clamp(1.7rem,2.2vw + 1.2rem,2.4rem);letter-spacing:-.02em;font-weight:700}
h2{font-size:1.3rem;margin-top:2em}h3{font-size:1.05rem}
p{margin:0 0 1em}
code{font-family:var(--mono);font-size:.9em;background:var(--soft);padding:.1em .35em;border-radius:5px}
pre{font-family:var(--mono)}
.sr-only,.skip:not(:focus){position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.skip:focus{position:fixed;top:8px;left:8px;z-index:50;background:#fff;padding:8px 12px;border:2px solid var(--blue);border-radius:8px}
:focus-visible{outline:3px solid var(--orange);outline-offset:2px}
[hidden]{display:none!important}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}

/* page shell: logo column on the left, content on the right */
.shell{flex:1;width:100%;max-width:1120px;margin:0 auto;padding:56px 28px 32px;display:grid;grid-template-columns:240px minmax(0,1fr);gap:56px;align-items:start}
.side{position:sticky;top:40px}
.logo{display:block;width:210px;max-width:100%}
.logo img{display:block;width:100%;height:auto}
.powered{margin:10px 0 0 6px;font-size:.88rem;color:var(--muted)}
.powered a{color:var(--blue);font-weight:600;text-decoration:none}.powered a:hover{color:var(--orange);text-decoration:underline}
.main{min-width:0;max-width:760px}
@media (max-width:820px){
  .shell{grid-template-columns:1fr;gap:20px;padding:24px 18px 16px}
  .side{position:static;display:flex;align-items:center;gap:14px}
  .logo{width:84px}.powered{margin:0;font-size:.9rem}
}

/* tool */
.lead{font-size:1.08rem;color:var(--muted);max-width:42rem;margin-bottom:1.6em}
.tabs{display:flex;gap:6px;border-bottom:1px solid var(--border);margin-bottom:22px}
.tabs button{font:inherit;font-weight:600;color:var(--muted);background:none;border:0;border-bottom:3px solid transparent;margin-bottom:-1px;padding:10px 18px;cursor:pointer;border-radius:8px 8px 0 0}
.tabs button:hover{color:var(--text);background:var(--soft)}
.tabs button[aria-selected=true]{color:#111827;border-bottom-color:var(--orange)}
.tool.js .panel-title{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
.panel-title{font-size:1.1rem;margin:1.6em 0 .6em}
.panel:first-of-type .panel-title{margin-top:0}
.row{display:flex;gap:10px}
input[type=text],input[type=password],input[type=email],input[type=search],select,textarea{width:100%;font:inherit;color:var(--text);background:#fff;border:1px solid #cfd4dc;border-radius:12px;padding:12px 14px;min-height:50px}
input::placeholder,textarea::placeholder{color:#8a93a1}
input:focus,select:focus,textarea:focus{border-color:var(--blue);outline:3px solid rgba(8,72,168,.18);outline-offset:0}
textarea{resize:vertical;min-height:220px;line-height:1.5}.mono{font-family:var(--mono);font-size:.92rem}
label{display:block;font-weight:600;font-size:.92rem;margin:1em 0 .3em}label small{font-weight:400;color:var(--muted)}
label.check{display:flex;gap:10px;align-items:flex-start;font-weight:500;margin:0;font-size:1rem}
label.check input{width:18px;height:18px;margin:.3em 0 0;accent-color:var(--blue)}
.btn{display:inline-flex;align-items:center;justify-content:center;font:inherit;font-weight:600;padding:12px 24px;min-height:50px;border-radius:12px;border:1px solid transparent;cursor:pointer;text-decoration:none;white-space:nowrap}
.btn.primary{background:var(--blue);color:#fff}.btn.primary:hover{background:var(--blue-hover);color:#fff}
.btn.ghost{background:#fff;color:var(--text);border-color:#cfd4dc}.btn.ghost:hover{border-color:var(--blue);color:var(--blue)}
.btn.small{min-height:36px;padding:6px 14px;font-size:.88rem;border-radius:9px}
.btn[disabled]{opacity:.6;cursor:progress}
.linklike{background:none;border:0;padding:0;font:inherit;font-size:.85rem;color:var(--blue);cursor:pointer;text-decoration:underline}
#paste-form .btn{margin-top:18px}
.grid3{display:grid;grid-template-columns:1fr 1fr 1fr;gap:0 16px}
@media (max-width:700px){.grid3{grid-template-columns:1fr}.row{flex-direction:column}.row .btn{width:100%}}
.hint{font-size:.85rem;color:var(--muted);margin:.4em 0 0}
.private{margin-top:18px;padding:14px 16px;border:1px solid var(--border);border-radius:12px;background:var(--soft)}
.private-pw{margin-top:8px}
@supports selector(:has(*)){.private-pw{display:none}.private:has(input[type=checkbox]:checked) .private-pw{display:block}}
.error{color:var(--bad);font-weight:500;margin:.7em 0 0}
.notice{padding:12px 16px;border-radius:12px;margin:0 0 1em;border:1px solid}
.notice ul{margin:0;padding-left:1.2em}
.notice.ok{background:var(--ok-bg);color:var(--ok);border-color:#a6e3c2}.notice.bad{background:var(--bad-bg);color:var(--bad);border-color:#f4c7c3}

/* results list */
.links{margin-top:30px}
.links h3 small{font-weight:400;color:var(--muted);font-size:.8rem;margin-left:6px}
.results{list-style:none;margin:0;padding:0}
.item{display:grid;grid-template-columns:minmax(0,1fr) auto auto;gap:4px 12px;align-items:center;padding:14px 0;border-top:1px solid var(--border)}
.item:last-child{border-bottom:1px solid var(--border)}
.item.fresh{animation:flash 1.6s ease-out}
@keyframes flash{from{background:#fff4ec}to{background:transparent}}
.orig{grid-column:1/-1;color:var(--muted);font-size:.85rem;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.short{font-weight:700;font-size:1.1rem;overflow-wrap:anywhere}
.item .btn{justify-self:end}
.qrbox{grid-column:1/-1;display:flex;align-items:center;gap:16px;padding:10px 0 4px}
.qrimg{width:150px;height:150px;border:1px solid var(--border);border-radius:8px;padding:6px;background:#fff}.qrimg svg{display:block;width:100%;height:100%}
@media (prefers-reduced-motion:reduce){.item.fresh{animation:none}}

/* content pages */
.wrap{max-width:none;margin:0;padding:0}.narrow{max-width:none}.page{padding:0}.prose h2{margin-top:1.8em}
.meta{color:var(--muted);font-size:.92rem}
.steps{padding-left:1.3em}.steps li{margin-bottom:.6em;padding-left:.3em}
details{border:1px solid var(--border);border-radius:12px;margin-bottom:10px}
summary{cursor:pointer;padding:13px 16px;font-weight:600}details p{padding:0 16px;margin:0 0 1em}
.center{text-align:center}.big-code{font-size:3.5rem;margin:0;color:var(--muted)}
.form label{margin-top:1.1em}.form .btn{margin-top:1.3em}
.codeblock{position:relative;margin:.8em 0 1.2em}
.codeblock pre{margin:0;padding:14px 16px;background:#0f172a;color:#e2e8f0;border-radius:12px;overflow-x:auto;font-size:.86rem;line-height:1.6}
.codeblock .cmt{color:#94a3b8}
.table-scroll{overflow-x:auto;border:1px solid var(--border);border-radius:12px;margin:1em 0}
table{width:100%;border-collapse:collapse;font-size:.92rem}
th,td{text-align:left;padding:9px 12px;border-bottom:1px solid var(--border);vertical-align:top}tbody tr:last-child td{border-bottom:0}th{background:var(--soft)}

/* paste view */
.paste-title{margin-bottom:.15em;word-break:break-word}
.paste-actions{display:flex;flex-wrap:wrap;gap:8px;margin:14px 0}
.paste-actions .btn{min-height:38px;padding:6px 16px;font-size:.9rem;border-radius:9px}
.code-wrap{display:flex;border:1px solid var(--border);border-radius:12px;background:#fff;overflow:hidden}
.code-wrap pre{margin:0;font:13.5px/1.55 var(--mono);padding:14px 0}
.gutter{padding:14px 12px!important;text-align:right;color:#8a93a1;background:var(--soft);user-select:none;border-right:1px solid var(--border)}
.code{flex:1;min-width:0;overflow-x:auto;padding:14px 16px!important;tab-size:4}
.code code{background:none;padding:0;font-size:inherit;display:block}
.hljs{background:transparent!important}

/* footer */
.foot{border-top:1px solid var(--border);padding:20px 18px 28px;text-align:center}
.foot nav{display:flex;flex-wrap:wrap;gap:6px 22px;justify-content:center}
.foot a{color:var(--muted);font-size:.9rem;text-decoration:none}.foot a:hover{color:var(--blue);text-decoration:underline}

/* admin (same shell, full-width content) */
body.admin .shell{max-width:1280px;grid-template-columns:1fr;gap:12px;padding-top:24px}
body.admin .side{position:static;display:flex;align-items:center;gap:12px}body.admin .logo{width:64px}body.admin .main{max-width:none}
.admin-nav{display:flex;flex-wrap:wrap;gap:6px;padding:6px 0 10px;align-items:center}
.admin-nav a{padding:8px 14px;border-radius:9px;text-decoration:none;color:var(--text);font-weight:500}
.admin-nav a[aria-current]{background:var(--blue);color:#fff}
.right{margin-left:auto}.inline{display:inline}
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:12px;margin:16px 0}
.card{border:1px solid var(--border);border-radius:12px;padding:14px 16px;color:var(--muted);font-size:.9rem}
.card span{display:block;font-size:1.7rem;font-weight:700;color:var(--text)}.card.warn{border-color:var(--bad)}
.chart{width:100%;height:150px;border:1px solid var(--border);border-radius:12px}
.bar-hum{fill:var(--blue)}.bar-bot{fill:var(--blue);opacity:.3}
.axis{display:flex;justify-content:space-between;font-size:.8rem;color:var(--muted);margin:4px 0 0}
.num{text-align:right}.url{max-width:340px;overflow-wrap:anywhere}
.tag{font-size:.78rem;padding:2px 8px;border-radius:99px;font-weight:600}.tag.ok{background:var(--ok-bg);color:var(--ok)}.tag.bad{background:var(--bad-bg);color:var(--bad)}
.searchbar{display:flex;gap:8px;margin:12px 0}.searchbar input{max-width:360px}.searchbar select{width:auto}
.pager{display:flex;align-items:center;gap:14px;margin:16px 0}.filters{display:flex;gap:8px;flex-wrap:wrap}.btn.active{border-color:var(--blue)}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:0 20px}@media (max-width:760px){.grid2{grid-template-columns:1fr}}
.tables h2{margin-top:1.2em}

@media print{.side,.foot,.paste-actions{display:none}.shell{display:block;padding:0}}