@font-face{font-family:"Plex Sans";src:url(/assets/fonts/plex-sans-400.woff2) format("woff2");font-weight:400;font-display:swap}
@font-face{font-family:"Plex Sans";src:url(/assets/fonts/plex-sans-600.woff2) format("woff2");font-weight:600;font-display:swap}
@font-face{font-family:"Plex Sans";src:url(/assets/fonts/plex-sans-700.woff2) format("woff2");font-weight:700;font-display:swap}
@font-face{font-family:"Plex Mono";src:url(/assets/fonts/plex-mono-400.woff2) format("woff2");font-weight:400;font-display:swap}
:root{--bg:#0b0e14;--bg2:#10141c;--panel:#141a24;--panel2:#19202c;--line:#252e3d;--line2:#2f3a4c;--text:#e6eaf0;--muted:#9aa5b5;--dim:#6f7b8c;
--accent:#38d9a9;--accent2:#7c9cff;--accent-ink:#04140f;--warn:#f0b450;--bad:#f07178;--ok:#38d9a9;--code:#0f141c;--shadow:0 10px 30px -12px rgba(0,0,0,.6);
--radius:12px;--sans:"Plex Sans",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;--mono:"Plex Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;color-scheme:dark}
:root[data-theme=light]{--bg:#f7f8fa;--bg2:#eef1f5;--panel:#fff;--panel2:#f3f5f8;--line:#dfe4ec;--line2:#cbd3de;--text:#141a24;--muted:#4f5b6c;--dim:#738093;
--accent:#0b8f6a;--accent2:#3d5ce0;--accent-ink:#fff;--warn:#a96a00;--bad:#c62f3a;--ok:#0b8f6a;--code:#f2f4f8;--shadow:0 10px 30px -14px rgba(20,30,50,.25);color-scheme:light}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-padding-top:80px}
body{margin:0;background:var(--bg);color:var(--text);font:400 16.5px/1.65 var(--sans);text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased}
a{color:var(--accent);text-decoration-thickness:1px;text-underline-offset:3px}
a:hover{text-decoration-thickness:2px}
img,svg{max-width:100%}
::selection{background:color-mix(in srgb,var(--accent) 35%,transparent)}
:focus-visible{outline:2px solid var(--accent2);outline-offset:2px;border-radius:4px}
.wrap{max-width:1180px;margin:0 auto;padding:0 22px}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.hidden{display:none!important}
.skip{position:absolute;left:-999px;top:8px;background:var(--accent);color:var(--accent-ink);padding:8px 14px;border-radius:8px;z-index:99}
.skip:focus{left:12px}
/* header */
.site-header{position:sticky;top:0;z-index:50;background:color-mix(in srgb,var(--bg) 86%,transparent);backdrop-filter:saturate(1.4) blur(12px);-webkit-backdrop-filter:saturate(1.4) blur(12px);border-bottom:1px solid var(--line)}
.site-header .wrap{display:flex;align-items:center;gap:18px;height:62px}
.brand{display:flex;align-items:center;gap:10px;color:var(--text);text-decoration:none;font-weight:600;font-size:18px;letter-spacing:-.01em;white-space:nowrap}
.brand svg{width:30px;height:30px;flex:none}
.brand b{color:var(--accent);font-weight:700}
.lg-box{stroke:var(--line2);stroke-width:1.5}.lg-line{stroke:var(--muted);stroke-width:1.5;stroke-linejoin:round;stroke-linecap:round}.lg-dot{fill:var(--accent)}.lg-core{fill:var(--accent2)}
.nav{display:flex;gap:4px;margin-left:12px;flex:1}
.nav a{color:var(--muted);text-decoration:none;padding:7px 11px;border-radius:8px;font-size:15px;font-weight:500}
.nav a:hover{color:var(--text);background:var(--panel)}
.nav a[aria-current],.nav a.active{color:var(--text);background:var(--panel2)}
.controls{display:flex;align-items:center;gap:8px;margin-left:auto}
.icon-btn{display:inline-grid;place-items:center;width:36px;height:36px;border-radius:9px;border:1px solid var(--line);background:var(--panel);color:var(--muted);cursor:pointer;padding:0}
.icon-btn:hover{color:var(--text);border-color:var(--line2)}
.icon-btn svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.theme-toggle .i-moon{display:none}
:root[data-theme=light] .theme-toggle .i-sun{display:none}:root[data-theme=light] .theme-toggle .i-moon{display:block}
.lang{display:flex;border:1px solid var(--line);border-radius:9px;overflow:hidden;background:var(--panel);height:36px}
.lang a{display:grid;place-items:center;padding:0 10px;font:600 12.5px/1 var(--mono);color:var(--muted);text-decoration:none;letter-spacing:.04em}
.lang a:hover{color:var(--text)}
.lang a[aria-current]{background:var(--accent);color:var(--accent-ink)}
.nav-toggle{display:none;height:36px;padding:0 12px;border-radius:9px;border:1px solid var(--line);background:var(--panel);color:var(--text);font:500 14px var(--sans);cursor:pointer}
@media (max-width:940px){
 .nav-toggle{display:inline-block}
 .nav{display:none;position:absolute;top:62px;left:0;right:0;flex-direction:column;background:var(--bg);border-bottom:1px solid var(--line);padding:10px 16px 16px;margin:0;box-shadow:var(--shadow)}
 .nav.open{display:flex}
 .nav a{padding:11px 12px;font-size:16px}
}
@media (max-width:420px){.brand span{font-size:16px}.site-header .wrap{gap:10px}.controls{gap:6px}.icon-btn{width:34px}.lang a{padding:0 8px}}
/* hero */
.hero{position:relative;padding:84px 0 64px;overflow:hidden;border-bottom:1px solid var(--line)}
.hero::before{content:"";position:absolute;inset:0;background:radial-gradient(700px 360px at 85% 10%,color-mix(in srgb,var(--accent2) 18%,transparent),transparent 70%),radial-gradient(600px 340px at 10% 90%,color-mix(in srgb,var(--accent) 14%,transparent),transparent 70%);pointer-events:none}
.hero::after{content:"";position:absolute;inset:0;background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);background-size:44px 44px;opacity:.35;mask-image:radial-gradient(ellipse at center,#000 30%,transparent 75%);-webkit-mask-image:radial-gradient(ellipse at center,#000 30%,transparent 75%);pointer-events:none}
.hero .wrap{position:relative;z-index:1;display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center}
.hero h1{font-size:clamp(34px,5vw,56px);line-height:1.08;letter-spacing:-.025em;margin:.2em 0 .35em;font-weight:700}
.hero h1 em{font-style:normal;background:linear-gradient(90deg,var(--accent),var(--accent2));-webkit-background-clip:text;background-clip:text;color:transparent}
.hero p.lead{font-size:19px;color:var(--muted);max-width:620px}
.cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.btn{display:inline-flex;align-items:center;gap:8px;padding:11px 18px;border-radius:10px;font-weight:600;font-size:15.5px;text-decoration:none;border:1px solid var(--line2);color:var(--text);background:var(--panel);cursor:pointer;font-family:var(--sans)}
.btn:hover{border-color:var(--accent)}
.btn.primary{background:var(--accent);color:var(--accent-ink);border-color:var(--accent)}
.btn.primary:hover{filter:brightness(1.08)}
.btn.sm{padding:7px 12px;font-size:14px;border-radius:8px}
.stats{display:flex;gap:28px;margin-top:34px;flex-wrap:wrap}
.stats div{font-size:14px;color:var(--muted)}.stats b{display:block;font-size:26px;color:var(--text);font-weight:700;letter-spacing:-.02em}
.term{background:var(--code);border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow);overflow:hidden;font:13.5px/1.7 var(--mono)}
.term-bar{display:flex;gap:7px;padding:11px 14px;border-bottom:1px solid var(--line);background:var(--panel)}
.term-bar i{width:11px;height:11px;border-radius:50%;background:var(--line2)}
.term-bar span{margin-left:8px;color:var(--dim);font-size:12px}
.term pre{margin:0;padding:16px 18px;overflow:auto;color:var(--text);background:none;border:0}
.t-c{color:var(--dim)}.t-k{color:var(--accent2)}.t-s{color:var(--accent)}.t-n{color:var(--warn)}
@media (max-width:900px){.hero{padding:52px 0 44px}.hero .wrap{grid-template-columns:1fr;gap:32px}}
/* sections */
.section{padding:64px 0;border-bottom:1px solid var(--line)}
.section.alt{background:var(--bg2)}
.section-head{display:flex;justify-content:space-between;align-items:end;gap:20px;margin-bottom:26px;flex-wrap:wrap}
.section-head h2{font-size:clamp(24px,3vw,32px);letter-spacing:-.02em;margin:0;line-height:1.2}
.section-head p{margin:.4em 0 0;color:var(--muted);max-width:640px}
.eyebrow{font:600 12.5px/1 var(--mono);letter-spacing:.12em;text-transform:uppercase;color:var(--accent);margin:0 0 10px}
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:16px}
.card{position:relative;display:block;padding:20px 20px 22px;border:1px solid var(--line);border-radius:var(--radius);background:var(--panel);color:var(--text);text-decoration:none;transition:border-color .15s,transform .15s}
.card:hover{border-color:var(--accent);transform:translateY(-2px)}
.card h3{margin:.45em 0 .35em;font-size:17.5px;line-height:1.3;padding-right:20px}
.card p{margin:0;color:var(--muted);font-size:14.8px;line-height:1.55}
.card-tag{font:500 11.5px/1 var(--mono);text-transform:uppercase;letter-spacing:.08em;color:var(--accent2)}
.card-go{position:absolute;right:18px;top:18px;color:var(--dim)}
.card:hover .card-go{color:var(--accent)}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.grid2{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
@media (max-width:860px){.grid3,.grid2{grid-template-columns:1fr}}
.feature{padding:22px;border:1px solid var(--line);border-radius:var(--radius);background:var(--panel)}
.feature h3{margin:.2em 0 .4em;font-size:17px}.feature p{margin:0;color:var(--muted);font-size:15px}
.feature .num{font:600 13px var(--mono);color:var(--accent)}
.principles{counter-reset:p;list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.principles li{padding:16px 18px 16px 56px;position:relative;border:1px solid var(--line);border-radius:10px;background:var(--panel);color:var(--muted);font-size:15px}
.principles li b{color:var(--text);display:block}
.principles li::before{counter-increment:p;content:counter(p,decimal-leading-zero);position:absolute;left:18px;top:16px;font:600 14px var(--mono);color:var(--accent)}
@media (max-width:760px){.principles{grid-template-columns:1fr}}
/* page */
.page-head{padding:40px 0 30px;border-bottom:1px solid var(--line);background:linear-gradient(180deg,var(--bg2),var(--bg))}
.page-head h1{font-size:clamp(30px,4vw,44px);line-height:1.12;letter-spacing:-.022em;margin:.15em 0 .3em}
.page-head .lead{font-size:18.5px;color:var(--muted);max-width:780px;margin:0}
.crumbs{display:flex;flex-wrap:wrap;gap:8px;font-size:13.5px;color:var(--dim);margin-bottom:18px}
.crumbs a{color:var(--muted);text-decoration:none}.crumbs a:hover{color:var(--accent)}
.meta-line{display:flex;gap:16px;flex-wrap:wrap;margin:16px 0 0;font:13px var(--mono);color:var(--dim)}
.meta-line span+span::before{content:"/";margin-right:16px;color:var(--line2)}
.layout{display:grid;grid-template-columns:minmax(0,1fr) 250px;gap:56px;padding-top:36px;padding-bottom:72px}
.layout.full{grid-template-columns:minmax(0,1fr)}
.toc{position:sticky;top:86px;align-self:start;font-size:14px;border-left:1px solid var(--line);padding-left:18px}
.toc b{display:block;font:600 12px var(--mono);text-transform:uppercase;letter-spacing:.1em;color:var(--dim);margin-bottom:10px}
.toc ol{list-style:none;margin:0;padding:0}.toc li{margin:0 0 8px}
.toc a{color:var(--muted);text-decoration:none}.toc a:hover,.toc a.on{color:var(--accent)}
@media (max-width:1000px){.layout{grid-template-columns:minmax(0,1fr);gap:0}.toc{display:none}}
.prose{max-width:760px}
.prose h2{font-size:26px;letter-spacing:-.015em;line-height:1.25;margin:2em 0 .6em;padding-top:.2em}
.prose h2:first-child{margin-top:0}
.prose h3{font-size:19px;margin:1.7em 0 .5em;line-height:1.3}
.prose p,.prose li{color:color-mix(in srgb,var(--text) 88%,var(--muted))}
.prose li{margin:.3em 0}
.prose ul,.prose ol{padding-left:1.3em}
.prose strong{color:var(--text)}
.prose hr{border:0;border-top:1px solid var(--line);margin:2.4em 0}
.prose blockquote{margin:1.5em 0;padding:4px 18px;border-left:3px solid var(--accent2);color:var(--muted)}
code{font:0.88em var(--mono);background:var(--panel2);border:1px solid var(--line);padding:.1em .38em;border-radius:5px}
pre{background:var(--code);border:1px solid var(--line);border-radius:10px;padding:16px 18px;overflow:auto;font:13.6px/1.6 var(--mono);position:relative}
pre code{background:none;border:0;padding:0;font-size:inherit}
.copy-btn{position:absolute;top:8px;right:8px;font:500 12px var(--sans);padding:4px 9px;border-radius:6px;border:1px solid var(--line2);background:var(--panel);color:var(--muted);cursor:pointer;opacity:0;transition:opacity .15s}
pre:hover .copy-btn,.copy-btn:focus{opacity:1}
@media (hover:none){.copy-btn{opacity:1}}
table{border-collapse:collapse;width:100%;margin:1.4em 0;font-size:15px;display:block;overflow-x:auto}
th,td{text-align:left;padding:10px 12px;border-bottom:1px solid var(--line);vertical-align:top}
th{font-weight:600;color:var(--text);background:var(--panel2);white-space:nowrap}
.callout{border:1px solid var(--line);border-left:3px solid var(--accent);background:var(--panel);border-radius:10px;padding:14px 18px;margin:1.6em 0}
.callout.warn{border-left-color:var(--warn)}.callout.bad{border-left-color:var(--bad)}
.callout p{margin:.3em 0}.callout>b:first-child{display:block;font-size:14px;letter-spacing:.02em;margin-bottom:2px;color:var(--text)}
dl dt{font-weight:600;margin-top:1.1em;color:var(--text)}dl dd{margin:.2em 0 0;color:var(--muted)}
.pager{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:56px}
.pager a{display:block;padding:14px 16px;border:1px solid var(--line);border-radius:10px;text-decoration:none;color:var(--text);background:var(--panel)}
.pager a:hover{border-color:var(--accent)}
.pager small{display:block;color:var(--dim);font-size:12.5px;text-transform:uppercase;letter-spacing:.08em;margin-bottom:2px}
.pager .next{text-align:right;grid-column:2}
.cols{columns:2;column-gap:40px}@media (max-width:700px){.cols{columns:1}}
.wide{min-width:0}
/* directory */
.filters{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin-bottom:14px}
.filters input[type=search]{flex:1;min-width:220px}
.count{font:13px var(--mono);color:var(--dim)}
.chip{padding:6px 12px;border-radius:999px;border:1px solid var(--line);background:var(--panel);color:var(--muted);font:500 13.5px var(--sans);cursor:pointer}
.chip[aria-pressed=true]{background:var(--accent);border-color:var(--accent);color:var(--accent-ink)}
.dir-cat h2{font-size:21px;margin:1.8em 0 .7em}
.dir-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:14px}
.entry{padding:16px 18px;border:1px solid var(--line);border-radius:10px;background:var(--panel)}
.entry h3{margin:0;font-size:16.5px}.entry h3 a{text-decoration:none;color:var(--text)}.entry h3 a:hover{color:var(--accent)}
.entry .host{font:12.5px var(--mono);color:var(--dim)}
.entry p{margin:.5em 0 .7em;color:var(--muted);font-size:14.6px;line-height:1.55}
.tags{display:flex;flex-wrap:wrap;gap:6px}
.tag{font:11.5px var(--mono);padding:2px 8px;border-radius:999px;background:var(--panel2);border:1px solid var(--line);color:var(--muted)}
.status{padding:14px;border:1px dashed var(--line2);border-radius:10px;color:var(--muted)}
/* forms + tools */
input,select,textarea{font:15px var(--sans);color:var(--text);background:var(--panel);border:1px solid var(--line2);border-radius:9px;padding:9px 12px;width:100%}
textarea{font:13.5px/1.55 var(--mono);min-height:150px;resize:vertical}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px color-mix(in srgb,var(--accent) 22%,transparent)}
input[type=checkbox],input[type=radio]{width:auto;accent-color:var(--accent)}
input[type=color]{padding:3px;height:40px}
label{display:block;font-size:14px;font-weight:600;margin:0 0 6px;color:var(--text)}
.hint{font-size:13.5px;color:var(--dim);margin:6px 0 0}
.tool-ui{border:1px solid var(--line);border-radius:14px;background:var(--panel);padding:22px;margin:0 0 30px}
.tool-ui h2{margin-top:0}
.row{display:grid;gap:14px;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));margin-bottom:14px}
.row.two{grid-template-columns:1fr 1fr}@media (max-width:760px){.row.two{grid-template-columns:1fr}}
.field{margin-bottom:14px}
.actions{display:flex;gap:10px;flex-wrap:wrap;margin:6px 0 14px}
.out{background:var(--code);border:1px solid var(--line);border-radius:10px;padding:14px 16px;font:13.5px/1.6 var(--mono);white-space:pre-wrap;word-break:break-word;min-height:48px;margin:0;color:var(--text)}
.out.big{font:600 17px/1.5 var(--mono)}
.msg{font-size:14.5px;margin:8px 0;min-height:1.4em}.msg.ok{color:var(--ok)}.msg.bad{color:var(--bad)}.msg.warn{color:var(--warn)}
.check{display:flex;align-items:center;gap:8px;font-weight:500;margin:0}
.split{display:grid;grid-template-columns:1fr 1fr;gap:22px}@media (max-width:900px){.split{grid-template-columns:1fr}}
.kv{display:grid;grid-template-columns:1fr 1fr auto;gap:8px;margin-bottom:8px}
.kv button{padding:0 12px}
.list-out{list-style:none;padding:0;margin:0;font:13.5px/1.7 var(--mono)}
.list-out li{padding:6px 10px;border-bottom:1px solid var(--line)}
.find{border:1px solid var(--line);border-radius:10px;padding:12px 14px;margin:10px 0;background:var(--panel2)}
.find b{display:block}.find code{word-break:break-all}
.sev{font:600 11px var(--mono);padding:2px 7px;border-radius:999px;margin-left:8px;text-transform:uppercase}
.sev.high{background:color-mix(in srgb,var(--bad) 20%,transparent);color:var(--bad)}.sev.med{background:color-mix(in srgb,var(--warn) 20%,transparent);color:var(--warn)}
mark{background:color-mix(in srgb,var(--warn) 35%,transparent);color:var(--text);border-radius:3px;padding:0 1px}
.tree{font:13px/1.65 var(--mono)}.tree .p{color:var(--accent2)}.tree .v{color:var(--muted)}
/* discord preview */
.dc{background:#313338;color:#dbdee1;border-radius:10px;padding:16px;font:15px/1.4 "gg sans","Noto Sans",var(--sans)}
.dc-msg{display:flex;gap:14px}.dc-av{width:40px;height:40px;border-radius:50%;background:#5865f2;flex:none;object-fit:cover}
.dc-name{font-weight:600;color:#f2f3f5}.dc-name small{font-size:11px;background:#5865f2;color:#fff;border-radius:3px;padding:1px 4px;margin-left:6px;vertical-align:2px}
.dc-content{margin:2px 0 6px;white-space:pre-wrap;word-break:break-word}
.dc-embed{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:8px 16px;max-width:520px;background:#2b2d31;border-left:4px solid #5865f2;border-radius:4px;padding:10px 16px 14px 12px;margin-top:4px}
.dc-embed>*{grid-column:1}.dc-thumb{grid-column:2;grid-row:1/span 4;width:80px;height:80px;object-fit:cover;border-radius:4px}
.dc-author{display:flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:#f2f3f5}.dc-author img{width:24px;height:24px;border-radius:50%}
.dc-title{font-weight:600;color:#00a8fc;font-size:16px}.dc-title.plain{color:#f2f3f5}
.dc-desc{font-size:14px;white-space:pre-wrap;word-break:break-word}
.dc-fields{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px}
.dc-field{grid-column:span 3}.dc-field.inl{grid-column:span 1}
.dc-field b{display:block;font-size:14px;color:#f2f3f5}.dc-field span{font-size:14px;white-space:pre-wrap}
.dc-img{max-width:100%;border-radius:4px;margin-top:4px}
.dc-foot{display:flex;align-items:center;gap:8px;font-size:12px;color:#b5bac1}.dc-foot img{width:20px;height:20px;border-radius:50%}
/* search */
.results{list-style:none;padding:0;margin:20px 0 0}
.results li{padding:16px 0;border-bottom:1px solid var(--line)}
.results a{font-size:18px;font-weight:600;text-decoration:none}
.results p{margin:.3em 0 0;color:var(--muted);font-size:15px}
.results small{font:12px var(--mono);color:var(--dim);text-transform:uppercase;letter-spacing:.06em}
/* footer */
.site-footer{border-top:1px solid var(--line);background:var(--bg2);padding:52px 0 26px;font-size:14.5px;color:var(--muted)}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px}
.foot-about p{margin-top:14px;max-width:340px}
.site-footer h2{font:600 12.5px var(--mono);text-transform:uppercase;letter-spacing:.12em;color:var(--text);margin:6px 0 14px}
.site-footer ul{list-style:none;margin:0;padding:0}.site-footer li{margin:0 0 8px}
.site-footer a{color:var(--muted);text-decoration:none}.site-footer a:hover{color:var(--accent)}
.foot-bottom{display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;border-top:1px solid var(--line);margin-top:40px;padding-top:20px;font-size:13px;color:var(--dim)}
@media (max-width:860px){.foot-grid{grid-template-columns:1fr 1fr}.foot-about{grid-column:1/-1}}
@media (prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}
@media print{.site-header,.site-footer,.toc,.copy-btn{display:none}body{background:#fff;color:#000}}
.prose ul.checklist{list-style:none;padding-left:0}
.prose li.todo{position:relative;padding-left:30px;margin:.5em 0}
.prose li.todo::before{content:"";position:absolute;left:0;top:.28em;width:16px;height:16px;border:1.5px solid var(--accent);border-radius:4px}
.dc code{background:#1e1f22;border-color:#3f4147;color:#dbdee1}.dc a{color:#00a8fc}
/* v2 interactivity */
@view-transition{navigation:auto}
::view-transition-old(root),::view-transition-new(root){animation-duration:.18s}
.read-bar{position:fixed;top:0;left:0;right:0;height:3px;z-index:60;pointer-events:none}
.read-bar span{display:block;height:100%;background:linear-gradient(90deg,var(--accent),var(--accent2));transform-origin:0 50%;transform:scaleX(0)}
.persist-bar{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;font-size:13.5px;color:var(--dim);margin:0 0 14px;padding:8px 12px;border:1px dashed var(--line2);border-radius:10px}
.chip span{font:11px var(--mono);opacity:.7;margin-left:2px}
.card,.btn,.chip,.entry,.icon-btn{transition:border-color .15s,transform .15s,background-color .15s,color .15s}
.card.done{border-color:color-mix(in srgb,var(--accent) 55%,var(--line))}
.card.done .card-go{color:var(--accent)}.card.done .card-go::before{content:"done ";font:600 11px var(--mono);text-transform:uppercase;letter-spacing:.06em}
.progress-box{margin:0 0 26px}.progress{height:8px;border-radius:99px;background:var(--panel2);border:1px solid var(--line);overflow:hidden}
.progress span{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--accent),var(--accent2));transition:width .5s}
.quiz{margin-top:48px;padding:22px;border:1px solid var(--line);border-radius:14px;background:var(--panel)}
.quiz h2{margin-top:0!important}
.q{border:0;padding:0;margin:0 0 18px}.q legend{font-weight:600;margin-bottom:8px;color:var(--text)}
.opt{display:flex;gap:10px;align-items:center;font-weight:400;padding:8px 12px;border:1px solid var(--line);border-radius:9px;margin:6px 0;cursor:pointer;background:var(--bg)}
.opt:hover{border-color:var(--line2)}.opt input{margin:0}
.q.good .opt:has(input:checked){border-color:var(--ok);background:color-mix(in srgb,var(--ok) 12%,transparent)}
.q.wrong .opt:has(input:checked){border-color:var(--bad);background:color-mix(in srgb,var(--bad) 12%,transparent)}
.q-x{font-size:14.5px;color:var(--muted);margin:6px 0 0}
kbd{font:12px var(--mono);padding:1px 6px;border:1px solid var(--line2);border-bottom-width:2px;border-radius:5px;background:var(--panel2)}
/* hero canvas + demo bot */
.hero canvas.net{position:absolute;inset:0;width:100%;height:100%;z-index:0;opacity:.75;pointer-events:none}
.demo{background:var(--panel);border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow);overflow:hidden;display:flex;flex-direction:column;height:460px}
.demo-head{display:flex;align-items:center;gap:10px;padding:12px 16px;border-bottom:1px solid var(--line);background:var(--panel2)}
.demo-head .av{width:34px;height:34px;border-radius:50%;background:linear-gradient(135deg,var(--accent),var(--accent2));display:grid;place-items:center;color:#fff;font:700 13px var(--mono)}
.demo-head b{display:block;font-size:15px}.demo-head small{color:var(--dim);font-size:12.5px}
.demo-log{flex:1;overflow-y:auto;padding:16px;display:flex;flex-direction:column;gap:8px;scroll-behavior:smooth}
.bub{max-width:85%;padding:9px 13px;border-radius:14px;font-size:14.5px;line-height:1.45;white-space:pre-wrap;animation:pop .22s ease-out}
.bub.bot{background:var(--panel2);border:1px solid var(--line);border-bottom-left-radius:4px;align-self:flex-start}
.bub.me{background:var(--accent);color:var(--accent-ink);border-bottom-right-radius:4px;align-self:flex-end}
.bub code{font-size:12.5px}
.bub.typing{color:var(--dim)}.bub.typing i{display:inline-block;width:6px;height:6px;margin:0 2px;border-radius:50%;background:currentColor;animation:blink 1s infinite}
.bub.typing i:nth-child(2){animation-delay:.15s}.bub.typing i:nth-child(3){animation-delay:.3s}
.demo-keys{display:flex;flex-wrap:wrap;gap:6px;padding:0 16px 10px}
.demo-keys button{font:500 13px var(--sans);padding:6px 11px;border-radius:8px;border:1px solid var(--accent);background:transparent;color:var(--accent);cursor:pointer}
.demo-keys button:hover{background:color-mix(in srgb,var(--accent) 14%,transparent)}
.demo-in{display:flex;gap:8px;padding:10px 12px;border-top:1px solid var(--line)}
.demo-in input{flex:1}
@keyframes pop{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}
@keyframes blink{0%,100%{opacity:.25}50%{opacity:1}}
@media (prefers-reduced-motion:reduce){.bub{animation:none}.bub.typing i{animation:none}::view-transition-old(root),::view-transition-new(root){animation:none}}
/* tool previews */
.tg{background:#0e1621;color:#f5f5f5;border-radius:12px;padding:14px;font:14.5px/1.4 var(--sans)}
:root[data-theme=light] .tg{background:#dfe8ee;color:#000}
.tg-msg{background:#182533;border-radius:12px 12px 12px 4px;padding:9px 12px;max-width:100%;white-space:pre-wrap}
:root[data-theme=light] .tg-msg{background:#fff}
.tg-kb{display:flex;flex-direction:column;gap:4px;margin-top:4px}.tg-row{display:flex;gap:4px}
.tg-btn{flex:1;min-width:0;text-align:center;padding:8px 6px;border-radius:8px;background:rgba(255,255,255,.12);font-size:13.5px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
:root[data-theme=light] .tg-btn{background:rgba(0,0,0,.18);color:#fff}
.tg-reply{margin-top:10px;padding:6px;background:#17212b;border-radius:10px}.tg-reply .tg-btn{background:#2b5278}
:root[data-theme=light] .tg-reply{background:#f1f1f1}
.grid-ed .row-ed{display:flex;gap:8px;align-items:flex-start;margin-bottom:10px;padding:10px;border:1px solid var(--line);border-radius:10px;flex-wrap:wrap}
.btn-ed{display:grid;grid-template-columns:1fr 1fr 110px;gap:6px;flex:1 1 320px;padding:8px;border:1px dashed var(--line2);border-radius:8px}
.btn-ed .full{grid-column:1/-1;display:flex;gap:6px;justify-content:flex-end}
.slack{background:#fff;color:#1d1c1d;border-radius:10px;padding:16px;font:15px/1.46 Lato,"Helvetica Neue",var(--sans);border:1px solid #ddd}
.slack .s-head{display:flex;gap:8px;align-items:baseline}.slack .s-head b{font-weight:900}.slack .s-head small{color:#616061;font-size:12px}
.slack .s-app{font-size:10px;background:#e8e8e8;color:#616061;padding:1px 3px;border-radius:2px;font-weight:700}
.sb{margin:8px 0}.sb h4{margin:0;font-size:18px;font-weight:900}.sb hr{border:0;border-top:1px solid #ddd}
.sb-ctx{font-size:13px;color:#616061}.sb-sec{display:flex;gap:12px;justify-content:space-between}.sb-sec img{width:72px;height:72px;border-radius:4px;object-fit:cover}
.sb-fields{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-top:6px}
.sb-act{display:flex;gap:8px;flex-wrap:wrap}.sb-btn{border:1px solid #bbb;border-radius:4px;padding:4px 12px;font-weight:700;font-size:14px;background:#fff}
.sb-btn.primary{background:#007a5a;color:#fff;border-color:#007a5a}.sb-btn.danger{background:#e01e5a;color:#fff;border-color:#e01e5a}
.sb-in label{font-weight:700;font-size:15px;color:#1d1c1d}.sb-in div{border:1px solid #bbb;border-radius:4px;padding:8px;color:#888}
.slack code{background:#f6f6f6;border:1px solid #ddd;color:#e01e5a}
.slack a{color:#1264a3}
.block-item{display:flex;gap:8px;align-items:center;padding:8px 10px;border:1px solid var(--line);border-radius:9px;margin-bottom:8px;background:var(--bg)}
.block-item b{font:600 12px var(--mono);color:var(--accent2);min-width:70px}.block-item span{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:14px;color:var(--muted)}
.block-item button{padding:3px 8px;font-size:12px}
.wa{background:#0b141a;border-radius:12px;padding:16px;font:14.5px/1.4 var(--sans);color:#e9edef;min-height:120px}
:root[data-theme=light] .wa{background:#efeae2;color:#111b21}
.wa-b{background:#202c33;border-radius:8px 8px 8px 2px;padding:8px 10px;max-width:92%;white-space:pre-wrap}
:root[data-theme=light] .wa-b{background:#fff}
.wa-h{font-weight:700;margin-bottom:4px}.wa-f{font-size:12.5px;color:#8696a0;margin-top:6px}
.wa-btns{display:flex;flex-direction:column;gap:2px;margin-top:4px;max-width:92%}
.wa-btns div{background:#202c33;color:#53bdeb;text-align:center;padding:8px;border-radius:6px;font-weight:500}
:root[data-theme=light] .wa-btns div{background:#fff;color:#027eb5}
.flow-wrap{position:relative;height:520px;border:1px solid var(--line);border-radius:12px;overflow:hidden;background-color:var(--bg);background-image:radial-gradient(var(--line) 1px,transparent 1px);background-size:20px 20px;touch-action:none}
.flow-wrap svg{position:absolute;inset:0;width:100%;height:100%;pointer-events:none}
.flow-wrap svg path{fill:none;stroke:var(--accent2);stroke-width:2}
.node{position:absolute;width:190px;background:var(--panel);border:1px solid var(--line2);border-radius:10px;box-shadow:var(--shadow);font-size:13px;user-select:none}
.node.sel{border-color:var(--accent);box-shadow:0 0 0 3px color-mix(in srgb,var(--accent) 25%,transparent)}
.node header{padding:6px 10px;border-bottom:1px solid var(--line);font:600 11px var(--mono);text-transform:uppercase;letter-spacing:.06em;color:var(--accent2);cursor:grab;display:flex;justify-content:space-between}
.node .nb{padding:8px 10px;max-height:72px;overflow:hidden;color:var(--text)}
.node .port{position:absolute;right:-7px;top:50%;width:14px;height:14px;margin-top:-7px;border-radius:50%;background:var(--accent);border:2px solid var(--panel);cursor:crosshair}
.node .inport{position:absolute;left:-6px;top:50%;width:12px;height:12px;margin-top:-6px;border-radius:50%;background:var(--line2)}
.node.t-start header{color:var(--accent)}.node.t-ai header{color:var(--warn)}.node.t-end header{color:var(--bad)}
canvas.chart{width:100%;height:280px;display:block;border:1px solid var(--line);border-radius:10px;background:var(--code)}
.status-list{display:grid;gap:8px}
.st{display:grid;grid-template-columns:64px 1fr;gap:4px 14px;padding:12px 14px;border:1px solid var(--line);border-radius:10px;background:var(--panel)}
.st b{font:700 18px var(--mono)}.st h3{margin:0;font-size:15.5px}.st p{grid-column:2;margin:0;color:var(--muted);font-size:14px}
.st.c2 b{color:var(--ok)}.st.c3 b{color:var(--accent2)}.st.c4 b{color:var(--warn)}.st.c5 b{color:var(--bad)}.st.c1 b{color:var(--dim)}
.st .bot{grid-column:2;font-size:13.5px;color:var(--text);margin:2px 0 0}
.verdict{font:700 22px var(--mono);margin:8px 0}.verdict.ok{color:var(--ok)}.verdict.bad{color:var(--bad)}
.kvt{width:100%;font-size:14px}.kvt td{padding:6px 10px;border-bottom:1px solid var(--line)}.kvt td:first-child{color:var(--dim);white-space:nowrap;width:1%}
.kvt code{word-break:break-all}
.dcc-bar{background:#383a40;border-radius:8px;padding:12px 14px;color:#dbdee1;font:15px var(--sans)}
.dcc-slash{font-weight:600;color:#fff}.dcc-opt{display:inline-block;background:#2b2d31;border-radius:4px;padding:1px 8px;margin:2px;font-size:13.5px;color:#b5bac1}.dcc-opt.req{color:#fff;border:1px solid #5865f2}
.flow-wrap{overflow:auto!important}
.flow-canvas{position:relative;width:1240px;height:600px;touch-action:none}
.flow-wrap svg text{fill:var(--muted);font:12px var(--mono);stroke:var(--bg);stroke-width:4px;paint-order:stroke}
.sim-log{display:flex;flex-direction:column;gap:8px;max-height:320px;overflow-y:auto;padding:12px;border:1px solid var(--line);border-radius:10px;background:var(--bg);min-height:80px}
.flow-grid{display:grid;grid-template-columns:1fr 320px;gap:20px}@media (max-width:980px){.flow-grid{grid-template-columns:1fr}}
.split>*,.flow-grid>*,.row>*{min-width:0}