:root{--ink:#0f172a;--muted:#55607a;--line:#e3e6ef;--brand:#3730a3;--brand-d:#2b2583;--brand-l:#eceafd;--ok:#047857;--err:#b91c1c;--paper:#f7f8fc;--card:#fff;--r:14px;--sh:0 1px 2px rgba(15,23,42,.05),0 8px 24px rgba(15,23,42,.06)}
*{box-sizing:border-box}html{-webkit-text-size-adjust:100%}body{margin:0;font:16px/1.6 system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;color:var(--ink);background:var(--paper)}
a{color:var(--brand)}a:hover{color:var(--ink)}h1,h2,h3{line-height:1.2;letter-spacing:-.015em}h1{font-size:clamp(1.8rem,4vw,2.6rem);margin:.2em 0 .4em}h2{font-size:1.5rem}.h3,h3{font-size:1.15rem}
.skip{position:absolute;left:-999px;top:0;background:#fff;padding:8px 12px;z-index:10}.skip:focus{left:8px}.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}.hp{position:absolute;left:-5000px;width:1px;height:1px;opacity:0}
.wrap{max-width:1120px;margin:0 auto;padding:0 20px}.narrow{max-width:640px}.pad{padding-top:40px;padding-bottom:48px}.center{text-align:center}.muted{color:var(--muted)}.small{font-size:.875rem}.lead{font-size:1.15rem;color:var(--muted)}
header.site{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:5}.hbar{display:flex;align-items:center;gap:16px;min-height:62px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:1.15rem;color:var(--ink);text-decoration:none}.brand svg{width:32px;height:32px}
nav.main{display:flex;gap:2px;margin-left:12px;overflow-x:auto;scrollbar-width:none}nav.main a{padding:8px 10px;border-radius:10px;color:var(--ink);text-decoration:none;font-weight:600;font-size:.95rem;white-space:nowrap}nav.main a:hover,nav.main a[aria-current]{background:var(--brand-l);color:var(--brand)}
.acct{margin-left:auto;display:flex;gap:10px;align-items:center;white-space:nowrap}.acct .link{font-weight:600;text-decoration:none}
@media(max-width:820px){.hbar{flex-wrap:wrap;padding:8px 0;gap:6px}nav.main{order:3;width:100%;margin:0 0 4px}}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;background:var(--brand);color:#fff;border:1px solid var(--brand);border-radius:12px;padding:12px 20px;font:inherit;font-weight:700;text-decoration:none;cursor:pointer;min-height:44px}.btn:hover{background:var(--brand-d);color:#fff}
.btn.ghost{background:#fff;color:var(--brand);border-color:var(--line)}.btn.ghost:hover{border-color:var(--brand)}.btn.small{padding:7px 14px;min-height:36px;font-size:.92rem}.btn.danger{background:#fff;color:var(--err);border-color:#f3c4c4}
input,select,textarea{font:inherit;width:100%;padding:11px 12px;border:1px solid #cfd5e3;border-radius:10px;background:#fff;color:var(--ink);min-height:44px}input[type=checkbox],input[type=radio]{width:auto;min-height:0;padding:0;margin:0 6px 0 0;vertical-align:middle}input[type=file]{border:0;padding:0;min-height:0}input:focus,select:focus,textarea:focus,.btn:focus-visible{outline:3px solid #a5b4fc;outline-offset:1px}
label{display:block;font-weight:600;font-size:.95rem}label input,label select,label textarea,label .prefix{margin-top:6px;font-weight:400}
.prefix{display:flex;align-items:stretch}.prefix span{display:flex;align-items:center;padding:0 10px;background:#f1f3f9;border:1px solid #cfd5e3;border-right:0;border-radius:10px 0 0 10px;color:var(--muted)}.prefix input{border-radius:0 10px 10px 0;margin-top:0}
.stack>*+*{margin-top:14px}.row{display:flex;gap:10px;flex-wrap:wrap;align-items:center}.grid2{display:grid;grid-template-columns:1fr 1fr;gap:14px 18px}.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
@media(max-width:820px){.grid3{grid-template-columns:1fr}}@media(max-width:620px){.grid2{grid-template-columns:1fr}}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:22px;box-shadow:var(--sh)}.card h3{margin-top:0}
.hero{background:linear-gradient(160deg,#eef0ff 0%,#f7f8fc 60%);padding:64px 0 52px;text-align:center}.hero .lead{max-width:680px;margin:0 auto 26px}
.shorten{display:flex;gap:10px;max-width:720px;margin:0 auto;background:#fff;padding:8px;border-radius:16px;box-shadow:var(--sh);border:1px solid var(--line)}.shorten input{border:0;min-height:50px}.shorten .btn{min-width:130px}
@media(max-width:560px){.shorten{flex-direction:column}}
.formmsg{min-height:1.4em;margin:.6em 0}.err{color:var(--err);min-height:1.2em;margin:0}.ok{color:var(--ok)}
.result{display:flex;gap:10px;align-items:center;justify-content:center;flex-wrap:wrap;margin-top:8px}.mono{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}.big{font-size:1.2rem;font-weight:700}.break{word-break:break-all}
.band{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.ticks{list-style:none;padding:0;margin:0}.ticks li{padding:4px 0 4px 26px;position:relative}.ticks li:before{content:"";position:absolute;left:4px;top:12px;width:10px;height:6px;border-left:2px solid var(--ok);border-bottom:2px solid var(--ok);transform:rotate(-45deg)}
.plan .price{font-size:1.2rem;font-weight:800;color:var(--brand)}
.prose h2{margin-top:1.6em}.prose pre,pre{background:#0f172a;color:#e2e8f0;padding:14px;border-radius:10px;overflow:auto;font-size:.88rem}code{background:#eef0f7;padding:1px 5px;border-radius:5px;font-size:.9em}pre code{background:none}
footer.site{background:#fff;border-top:1px solid var(--line);margin-top:24px;padding:32px 0 18px}.fgrid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:20px}.fgrid h3{font-size:.95rem;margin:.2em 0 .6em}.fgrid a:not(.brand){display:block;padding:3px 0;text-decoration:none;color:var(--muted)}.fgrid a:hover{color:var(--brand)}.legal{margin-top:18px;font-size:.85rem}
@media(max-width:720px){.fgrid{grid-template-columns:1fr 1fr}}
main.wide .wrap{max-width:1200px}.dhead{display:flex;justify-content:space-between;align-items:center;gap:10px;flex-wrap:wrap}.tabs{display:flex;gap:6px;margin:10px 0 18px;border-bottom:1px solid var(--line);overflow-x:auto}.tabs button{background:none;border:0;border-bottom:3px solid transparent;padding:10px 14px;font:inherit;font-weight:700;color:var(--muted);cursor:pointer}.tabs button[aria-selected=true]{color:var(--brand);border-color:var(--brand)}
details summary{cursor:pointer;font-weight:600;color:var(--brand);margin:6px 0 12px}.search{margin:22px 0 10px}.search input{max-width:420px}
.list .item{background:#fff;border:1px solid var(--line);border-radius:12px;padding:14px 16px;margin-bottom:10px;display:grid;grid-template-columns:1fr auto;gap:8px 16px;align-items:center}
.item .s{font-weight:700;word-break:break-all}.item .d{color:var(--muted);font-size:.9rem;word-break:break-all}.item .meta{font-size:.82rem;color:var(--muted)}.item .acts{display:flex;gap:6px;flex-wrap:wrap;justify-content:flex-end}.item .n{font-weight:800;font-size:1.1rem;text-align:right}
.chip{display:inline-block;background:var(--brand-l);color:var(--brand);border-radius:99px;padding:0 8px;font-size:.78rem;margin-right:4px;font-weight:600}
@media(max-width:700px){.list .item{grid-template-columns:1fr}.item .acts{justify-content:flex-start}}
dialog{border:0;border-radius:16px;padding:0;max-width:760px;width:calc(100% - 24px);box-shadow:0 20px 60px rgba(0,0,0,.25)}dialog::backdrop{background:rgba(15,23,42,.45)}.mhead{display:flex;justify-content:space-between;align-items:center;padding:14px 18px;border-bottom:1px solid var(--line)}.mhead h2{margin:0;font-size:1.1rem;word-break:break-all}#mbody{padding:18px;max-height:75vh;overflow:auto}
.bars .b{display:grid;grid-template-columns:140px 1fr 48px;gap:8px;align-items:center;font-size:.9rem;margin:4px 0}.bars .t{height:10px;background:#eef0f7;border-radius:6px;overflow:hidden}.bars .f{height:100%;background:var(--brand)}.bars .k{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.kpis{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:12px}.kpi{background:var(--brand-l);border-radius:12px;padding:10px 14px}.kpi b{display:block;font-size:1.4rem}
.spark{display:flex;align-items:flex-end;gap:2px;height:80px;margin:8px 0 16px;border-bottom:1px solid var(--line)}.spark i{flex:1;background:#818cf8;min-height:2px;border-radius:2px 2px 0 0}
.qrout{display:flex;flex-direction:column;align-items:center;gap:10px;margin-top:16px}.qrout canvas{max-width:260px;height:auto;border:1px solid var(--line);border-radius:8px}
table{border-collapse:collapse;width:100%;font-size:.88rem}td,th{border-bottom:1px solid var(--line);padding:6px;text-align:left;vertical-align:top;word-break:break-word}