:root{
  --violet:#4B1CF3; --violet-2:#7B3FF2; --grad:linear-gradient(135deg,#4B1CF3,#7B3FF2);
  --ink:#17122B; --text:#4a4560; --muted:#8a86a0; --border:#ebe9f3; --soft:#f4f2ff; --soft-2:#ece8ff; --bg:#fbfaff;
  --green:#15803d; --green-bg:#e7f8ee; --red:#dc2626; --red-bg:#fdecec; --orange:#c2610a; --orange-bg:#fff3e2;
  --blue:#1d4ed8; --blue-bg:#e8efff; --gray-bg:#f1f0f5;
  --code-bg:#14102a; --code-head:#1d1838; --code-text:#e6e3f5;
  --shadow:0 1px 2px rgba(23,18,43,.04),0 8px 24px rgba(75,28,243,.06);
  --header:64px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:calc(var(--header) + 20px)}
body{margin:0;font-family:var(--font-brand),Poppins,system-ui,sans-serif;font-size:14.5px;line-height:1.7;color:var(--text);background:var(--bg)}
a{color:var(--violet);text-decoration:none} a:hover{text-decoration:underline}
code,.mono{font-family:var(--font-code),"JetBrains Mono",ui-monospace,monospace}
p code,li code,td code,.callout code{font-size:12.5px;background:var(--soft);color:var(--violet);padding:2px 6px;border-radius:6px;white-space:nowrap}
h1,h2,h3,h4{color:var(--ink);line-height:1.3;margin:0}

/* ---------- header ---------- */
.top{position:sticky;top:0;z-index:50;height:var(--header);background:rgba(255,255,255,.92);backdrop-filter:blur(10px);border-bottom:1px solid var(--border);
}
/* header lines up with the page: logo over the sidebar, switcher + key box over the content column */
.top-inner{max-width:1240px;margin:0 auto;height:100%;display:grid;grid-template-columns:260px minmax(0,1fr);align-items:center}
.top-main{padding:0 48px;min-width:0}
.top-main-inner{max-width:860px;display:flex;align-items:center;justify-content:space-between;gap:16px}
.top-left{display:flex;align-items:center;gap:12px;min-width:0;padding:0 16px 0 24px}
.brand{display:flex;align-items:center;gap:8px;font-weight:700;color:var(--ink);font-size:18px;white-space:nowrap}
.brand:hover{text-decoration:none}
.brand .mark{width:30px;height:30px;object-fit:contain;display:block}
.brand .chip{font-size:11px;font-weight:600;background:var(--soft);color:var(--violet);padding:2px 8px;border-radius:999px}
.switcher{display:flex;background:var(--gray-bg);padding:4px;border-radius:12px;gap:2px}
.switcher button{font:inherit;font-size:13.5px;font-weight:600;border:0;background:none;color:var(--muted);padding:7px 16px;border-radius:9px;cursor:pointer;display:flex;align-items:center;gap:7px;white-space:nowrap}
.switcher button.on{background:#fff;color:var(--ink);box-shadow:0 1px 3px rgba(23,18,43,.1)}
.switcher .new{font-size:10px;background:var(--grad);color:#fff;padding:1px 6px;border-radius:999px}
.login{display:inline-flex;align-items:center;gap:7px;height:38px;padding:0 18px;border-radius:10px;background:var(--grad);color:#fff;font-weight:600;font-size:13.5px;white-space:nowrap;box-shadow:0 6px 16px rgba(75,28,243,.25)}
.login:hover{text-decoration:none;filter:brightness(1.08)}
.menu-btn{display:none;border:1px solid var(--border);background:#fff;border-radius:10px;width:38px;height:38px;cursor:pointer;color:var(--ink)}

/* ---------- layout ---------- */
.layout{display:grid;grid-template-columns:260px minmax(0,1fr);max-width:1240px;margin:0 auto}
.side{position:sticky;top:var(--header);height:calc(100vh - var(--header));overflow-y:auto;padding:28px 16px 40px 24px;border-right:1px solid var(--border)}
.side .search{display:flex;align-items:center;gap:8px;border:1px solid var(--border);border-radius:10px;padding:0 10px;height:36px;background:#fff;margin-bottom:20px}
.side .search input{border:0;outline:0;font:inherit;font-size:13px;width:100%;background:none}
.side .search svg{color:var(--muted);flex:none}
.nav-group{margin-bottom:18px}
.nav-group h5{margin:0 0 6px 10px;font-size:10.5px;letter-spacing:.09em;text-transform:uppercase;color:var(--muted);font-weight:600}
.nav-group a{display:flex;align-items:center;gap:8px;padding:6px 10px;border-radius:8px;color:var(--text);font-size:13.5px;font-weight:500}
.nav-group a:hover{background:var(--soft);text-decoration:none}
.nav-group a.active{background:var(--soft-2);color:var(--violet);font-weight:600}
.nav-group a .m{font-family:"JetBrains Mono",monospace;font-size:9.5px;font-weight:600;padding:1px 5px;border-radius:4px;margin-left:auto}
.side .help{margin-top:12px;padding:14px;border-radius:12px;background:var(--soft);font-size:12.5px;overflow-wrap:anywhere}
.side .help b{color:var(--ink);display:block;margin-bottom:2px}

main{padding:36px 48px 100px;min-width:0}
.content{max-width:860px}
.panel{display:none} .panel.on{display:block}

/* ---------- hero ---------- */
.hero{position:relative;border-radius:22px;padding:34px 34px 30px;background:var(--grad);color:#fff;overflow:hidden;margin-bottom:28px}
.hero::after{content:"";position:absolute;right:-60px;top:-60px;width:260px;height:260px;border-radius:50%;background:rgba(255,255,255,.08)}
.hero::before{content:"";position:absolute;right:80px;bottom:-90px;width:200px;height:200px;border-radius:50%;background:rgba(255,255,255,.06)}
.hero .eyebrow{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:600;background:rgba(255,255,255,.16);padding:4px 12px;border-radius:999px}
.hero h1{color:#fff;font-size:30px;font-weight:700;margin:14px 0 8px}
.hero p{margin:0;max-width:600px;color:rgba(255,255,255,.85)}
.hero .base{display:inline-flex;align-items:center;gap:10px;margin-top:20px;background:rgba(0,0,0,.22);border-radius:10px;padding:8px 8px 8px 14px;font-family:"JetBrains Mono",monospace;font-size:13px}
.hero .base button{font:inherit;font-family:Poppins;font-size:12px;font-weight:600;border:0;border-radius:7px;background:rgba(255,255,255,.18);color:#fff;padding:4px 10px;cursor:pointer}

.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin:0 0 8px}
.card{background:#fff;border:1px solid var(--border);border-radius:16px;padding:18px;box-shadow:var(--shadow)}
.card .ic{width:36px;height:36px;border-radius:10px;display:grid;place-items:center;margin-bottom:10px}
.card h4{font-size:14.5px;margin-bottom:2px}
.card p{margin:0;font-size:13px;color:var(--muted)}
a.card:hover{text-decoration:none;border-color:#d6cffd}
.ic.v{background:var(--soft);color:var(--violet)} .ic.o{background:var(--orange-bg);color:var(--orange)} .ic.g{background:var(--green-bg);color:var(--green)} .ic.b{background:var(--blue-bg);color:var(--blue)}

/* ---------- sections ---------- */
section.doc{padding-top:44px;margin-top:44px;border-top:1px solid var(--border)}
section.doc:first-of-type{border-top:0;margin-top:0;padding-top:12px}
.sec-head{display:flex;align-items:center;gap:12px;margin-bottom:10px}
.sec-head .ic{width:38px;height:38px;border-radius:11px;display:grid;place-items:center;flex:none}
.sec-head h2{font-size:23px;font-weight:700}
.sec-head .tag{margin-left:auto}
h3{font-size:15.5px;font-weight:600;margin:28px 0 10px}
h3 .n{display:inline-grid;place-items:center;width:24px;height:24px;border-radius:7px;background:var(--grad);color:#fff;font-size:12px;margin-right:8px;vertical-align:1px}
p{margin:0 0 12px}

.endpoint{display:flex;align-items:center;gap:12px;flex-wrap:wrap;background:#fff;border:1px solid var(--border);border-radius:12px;padding:10px 12px;margin:14px 0}
.endpoint .url{font-family:"JetBrains Mono",monospace;font-size:13.5px;color:var(--ink);font-weight:500;word-break:break-all}
.endpoint .url span{color:var(--muted)}
.endpoint .tag{margin-left:auto}
.method{font-family:"JetBrains Mono",monospace;font-size:11px;font-weight:700;padding:3px 8px;border-radius:6px;letter-spacing:.03em;display:inline-block}
.GET{background:var(--green-bg);color:var(--green)} .POST{background:var(--blue-bg);color:var(--blue)} .DELETE{background:var(--red-bg);color:var(--red)}
.tag{font-size:11.5px;font-weight:600;padding:3px 10px;border-radius:999px;background:var(--gray-bg);color:var(--text);white-space:nowrap}
.tag.v{background:var(--soft);color:var(--violet)} .tag.o{background:var(--orange-bg);color:var(--orange)} .tag.g{background:var(--green-bg);color:var(--green)}

/* tables */
.tbl{border:1px solid var(--border);border-radius:14px;overflow:auto;background:#fff;margin:12px 0 16px}
table{width:100%;border-collapse:collapse;font-size:13.5px}
th{text-align:left;font-size:10.5px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);font-weight:600;padding:11px 14px;background:#faf9fd;border-bottom:1px solid var(--border);white-space:nowrap}
td{padding:11px 14px;border-bottom:1px solid var(--border);vertical-align:top}
tr:last-child td{border-bottom:0}
td:first-child{white-space:nowrap}
td .req{font-size:10.5px;font-weight:600;color:var(--red);margin-left:6px}
td .opt{font-size:10.5px;font-weight:600;color:var(--muted);margin-left:6px}
td .type{font-family:"JetBrains Mono",monospace;font-size:12px;color:var(--muted)}
.pill{display:inline-block;font-size:11.5px;font-weight:600;padding:2px 9px;border-radius:999px;font-family:"JetBrains Mono",monospace}
.p-valid{background:var(--green-bg);color:var(--green)} .p-catch{background:var(--orange-bg);color:var(--orange)} .p-risky{background:#fff7d6;color:#9a6b00}
.p-bad{background:var(--red-bg);color:var(--red)} .p-unk{background:var(--gray-bg);color:var(--text)}

/* callouts */
.callout{display:flex;gap:12px;padding:14px 16px;border-radius:14px;background:var(--soft);border:1px solid var(--soft-2);margin:16px 0;font-size:13.5px}
.callout svg{flex:none;margin-top:2px;color:var(--violet)}
.callout b{color:var(--ink)}
.callout.warn{background:#fff8ec;border-color:#fde7c4} .callout.warn svg{color:var(--orange)}
.callout.ok{background:var(--green-bg);border-color:#c8efd8} .callout.ok svg{color:var(--green)}

/* code */
.code{background:var(--code-bg);border-radius:14px;overflow:hidden;margin:12px 0 18px;box-shadow:0 10px 30px rgba(20,16,42,.12)}
.code-head{display:flex;align-items:center;gap:4px;background:var(--code-head);padding:6px 8px 6px 14px;min-height:42px}
.code-head .title{font-size:12px;font-weight:600;color:#a9a3c9;margin-right:10px}
.code-head .tabs{display:flex;gap:2px;overflow-x:auto}
.code-head .tabs button{font:inherit;font-size:12px;font-weight:500;border:0;background:none;color:#8d87ad;padding:5px 11px;border-radius:7px;cursor:pointer;white-space:nowrap}
.code-head .tabs button.on{background:rgba(255,255,255,.1);color:#fff}
.code-head .copy{margin-left:auto;font:inherit;font-size:12px;font-weight:600;border:0;background:rgba(255,255,255,.08);color:#d9d5ee;padding:5px 11px;border-radius:7px;cursor:pointer;display:flex;align-items:center;gap:6px;flex:none}
.code-head .copy:hover{background:rgba(255,255,255,.16)}
.code-head .copy.done{background:#16a34a;color:#fff}
.code pre{margin:0;padding:16px 18px;overflow-x:auto;font-family:"JetBrains Mono",monospace;font-size:12.8px;line-height:1.75;color:var(--code-text);tab-size:2}
.code pre[hidden]{display:none}
.t-k{color:#c4b5fd} .t-s{color:#86efac} .t-n{color:#fdba74} .t-c{color:#6f6a8f;font-style:italic} .t-key{color:#93c5fd} .t-b{color:#f9a8d4} .t-api{background:rgba(196,181,253,.18);border-radius:4px;color:#e9d5ff}
.status-line{display:inline-flex;align-items:center;gap:6px;font-size:11.5px;font-weight:600;color:#86efac}
.status-line::before{content:"";width:7px;height:7px;border-radius:50%;background:#22c55e}

/* steps */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin:14px 0 6px}
.steps.three{grid-template-columns:repeat(3,1fr)}
.step{position:relative;background:#fff;border:1px solid var(--border);border-radius:14px;padding:16px;box-shadow:var(--shadow)}
.step .num{width:26px;height:26px;border-radius:8px;background:var(--grad);color:#fff;font-size:12.5px;font-weight:700;display:grid;place-items:center;margin-bottom:10px}
.step h4{font-size:13.5px;margin-bottom:4px}
.step p{font-size:12.5px;color:var(--muted);margin:0}
.step code{font-size:11px}

/* mcp extras */
.flow{display:flex;align-items:stretch;gap:0;margin:16px 0 8px;flex-wrap:wrap}
.flow .node{flex:1;min-width:150px;background:#fff;border:1px solid var(--border);border-radius:14px;padding:14px;text-align:center;box-shadow:var(--shadow)}
.flow .node .ic{margin:0 auto 8px;width:38px;height:38px;border-radius:11px;display:grid;place-items:center}
.flow .node b{display:block;color:var(--ink);font-size:13.5px}
.flow .node small{color:var(--muted);font-size:12px}
.flow .arrow{display:grid;place-items:center;padding:0 8px;color:#b9b2e6;font-size:11px;text-align:center;line-height:1.3}
.flow .arrow svg{display:block;margin:0 auto 2px}
.kv{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;margin:14px 0}
.kv div{background:#fff;border:1px solid var(--border);border-radius:12px;padding:12px 14px}
.kv b{display:block;font-size:10.5px;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);font-weight:600}
.kv span{color:var(--ink);font-size:13.5px;font-weight:500}
.tool{background:#fff;border:1px solid var(--border);border-radius:16px;padding:20px;margin:16px 0;box-shadow:var(--shadow)}
.tool-head{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:6px}
.tool-head h4{font-family:"JetBrains Mono",monospace;font-size:15px;color:var(--violet)}
.tool-head .tag{margin-left:auto}
.tool .tbl{box-shadow:none}
.tool .code{margin-bottom:0}
.prompts{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:14px 0}
.prompt{background:#fff;border:1px solid var(--border);border-radius:14px;padding:16px;box-shadow:var(--shadow)}
.prompt q{display:block;color:var(--ink);font-weight:500;font-size:13.5px;margin-bottom:10px}
.prompt q::before,.prompt q::after{content:""}
.prompt .uses{font-size:11.5px;color:var(--muted)}
.prompt .uses code{font-size:11px}
ul.clean{padding:0;margin:12px 0;list-style:none}
ul.clean li{position:relative;padding:0 0 10px 28px}
ul.clean li::before{content:"";position:absolute;left:0;top:4px;width:18px;height:18px;border-radius:6px;background:var(--soft) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%234B1CF3' stroke-width='3'%3E%3Cpath d='M5 12l5 5L20 7'/%3E%3C/svg%3E") center/11px no-repeat}
ul.clean b{color:var(--ink)}

.toast{position:fixed;bottom:24px;left:50%;transform:translate(-50%,20px);background:var(--ink);color:#fff;padding:10px 16px;border-radius:10px;font-size:13px;opacity:0;transition:.25s;pointer-events:none;z-index:99}
.toast.show{opacity:1;transform:translate(-50%,0)}
.scrim{display:none}

/* ---------- responsive ---------- */
@media (max-width:1100px){ main{padding:32px 28px 80px} .top-main{padding:0 28px} }
@media (max-width:900px){
  .layout{grid-template-columns:1fr}
  .side{position:fixed;left:0;top:var(--header);width:280px;background:#fff;z-index:40;transform:translateX(-100%);transition:transform .2s;border-right:1px solid var(--border)}
  body.nav-open .side{transform:none}
  body.nav-open .scrim{display:block;position:fixed;inset:var(--header) 0 0 0;background:rgba(23,18,43,.3);z-index:30}
  .menu-btn{display:grid;place-items:center}
  .top-inner{grid-template-columns:auto minmax(0,1fr)}
  .top-left{padding:0 0 0 20px}
  .steps{grid-template-columns:1fr 1fr}
}
@media (max-width:640px){
  .top-left{padding:0 0 0 16px;gap:10px}
  .top-main{padding:0 16px 0 12px}
  .login{padding:0 11px;flex:none} .login span{display:none}
  .switcher button svg{display:none}
  .top-main-inner{gap:8px}
  .brand .chip,.brand .word{display:none}
  .switcher button{padding:7px 10px;font-size:12.5px}
  .switcher .new{display:none}
  main{padding:24px 16px 80px}
  .hero{padding:26px 22px}
  .hero h1{font-size:24px}
  .hero .base{font-size:11.5px;max-width:100%}
  .cards,.steps,.steps.three,.prompts,.kv{grid-template-columns:1fr}
  .flow{flex-direction:column}
  .flow .arrow svg{transform:rotate(90deg)}
}