:root{
 --bg:#0b0f1a;--bg2:#0f1626;--panel:#131c2e;--panel2:#0e1524;--line:#22304a;
 --fg:#eaf0f8;--muted:#93a3ba;--dim:#6b7c96;
 --ind:#6366f1;--ind2:#8b7cff;--cyan:#5cc8ff;--green:#16a34a;--amber:#fef3c7;--ambertx:#7a5b00;
 --code:#a9c7ff;--radius:16px;--maxw:1160px;
 --hero:linear-gradient(135deg,#1e2a5a 0%,#3b3168 55%,#4a3a86 100%);
}
*{box-sizing:border-box}html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--fg);font:16px/1.65 -apple-system,BlinkMacSystemFont,"Segoe UI",Inter,Roboto,Helvetica,Arial,sans-serif;-webkit-font-smoothing:antialiased}
a{color:var(--cyan);text-decoration:none}a:hover{text-decoration:underline}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 22px}
code,.mono{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,"Roboto Mono",monospace}
.tag{display:inline-block;background:rgba(99,102,241,.13);border:1px solid rgba(99,102,241,.25);color:var(--code);border-radius:6px;padding:1px 7px;font-size:12.5px;font-family:ui-monospace,Menlo,monospace}
/* header */
header{position:sticky;top:0;z-index:30;background:rgba(11,15,26,.82);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:66px}
.brand{display:flex;align-items:center;gap:11px;font-weight:700;color:var(--fg);letter-spacing:.2px}.brand:hover{text-decoration:none}
.brand .mk{width:30px;height:30px;border-radius:8px;background:var(--hero);display:grid;place-items:center;box-shadow:0 4px 14px rgba(75,58,134,.5)}
.brand small{display:block;font-weight:500;font-size:11px;color:var(--dim);letter-spacing:.5px}
.nav .links{display:flex;align-items:center;gap:26px}
.nav .links a{color:var(--muted);font-size:14.5px}.nav .links a:hover{color:var(--fg);text-decoration:none}
.btn{display:inline-flex;align-items:center;gap:8px;padding:10px 18px;border-radius:10px;background:linear-gradient(135deg,var(--ind),var(--ind2));color:#fff;font-weight:600;font-size:14.5px;border:none;cursor:pointer}
.btn:hover{text-decoration:none;filter:brightness(1.09)}
.btn.ghost{background:transparent;border:1px solid var(--line);color:var(--fg)}
.burger{display:none;background:none;border:1px solid var(--line);border-radius:9px;padding:8px 10px;color:var(--fg);cursor:pointer}
/* hero */
.hero{background:var(--hero);position:relative;overflow:hidden;border-bottom:1px solid var(--line)}
.hero:before{content:"";position:absolute;inset:0;background:radial-gradient(900px 400px at 80% -10%,rgba(92,200,255,.18),transparent),radial-gradient(700px 500px at 0% 120%,rgba(139,124,255,.22),transparent)}
.hero .wrap{position:relative;padding:84px 22px 72px}
.pill{display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.09);border:1px solid rgba(255,255,255,.16);border-radius:99px;padding:6px 14px;font-size:12.5px;letter-spacing:.6px;color:#dfe6ff;font-weight:600}
h1{font-size:56px;line-height:1.05;margin:22px 0 18px;letter-spacing:-1.5px;font-weight:800}
.hero p.lead{font-size:20px;line-height:1.55;color:#d7def2;max-width:680px;margin:0 0 30px}
.hero .cta{display:flex;gap:13px;flex-wrap:wrap;margin-bottom:52px}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.stat{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);border-radius:14px;padding:22px 20px}
.stat b{display:block;font-size:34px;font-weight:800;letter-spacing:-1px;background:linear-gradient(120deg,#fff,#c9d4ff);-webkit-background-clip:text;background-clip:text;color:transparent}
.stat span{color:#aab6d6;font-size:13.5px}
/* sections */
section{padding:76px 0;border-top:1px solid var(--line)}
.eyebrow{color:var(--ind2);font-weight:700;font-size:13px;letter-spacing:1.4px;text-transform:uppercase;margin:0 0 12px}
h2{font-size:36px;line-height:1.12;margin:0 0 14px;letter-spacing:-.7px;font-weight:800}
.sub{color:var(--muted);font-size:18px;max-width:760px;margin:0 0 44px}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.grid2{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:24px}
.card:hover{border-color:rgba(99,102,241,.5)}
.card .ic{width:42px;height:42px;border-radius:11px;background:linear-gradient(135deg,rgba(99,102,241,.22),rgba(139,124,255,.22));display:grid;place-items:center;font-size:21px;margin-bottom:14px}
.card h3{margin:0 0 8px;font-size:18px}
.card p{margin:0 0 12px;color:var(--muted);font-size:14.8px}
.card .meta{font-family:ui-monospace,Menlo,monospace;font-size:12.5px;color:var(--dim)}
/* corpora */
.corp{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.corp .c{background:var(--panel);border:1px solid var(--line);border-radius:13px;padding:18px 20px}
.corp .c.hl{background:linear-gradient(135deg,rgba(254,243,199,.14),rgba(254,243,199,.05));border-color:rgba(254,211,77,.4)}
.corp .c h4{margin:0;font-size:16px;display:flex;align-items:center;gap:7px}
.corp .c .src{color:var(--dim);font-size:12.5px;margin:2px 0 12px}
.corp .c .num{font-size:26px;font-weight:800;color:var(--cyan);letter-spacing:-.5px}
.corp .c.hl .num{color:#f2c94c}
.corp .c .num.dash{color:var(--line)}
.corp .c .lbl{margin-top:10px;display:inline-block;background:rgba(99,102,241,.12);border-radius:6px;padding:3px 10px;font-size:12px;color:var(--code)}
.corp .c.hl .lbl{background:rgba(254,211,77,.18);color:#c99700}
/* timeline */
.tl{position:relative;padding-left:0}
.step{display:grid;grid-template-columns:44px 1fr;gap:20px;padding:0 0 30px;position:relative}
.step:not(:last-child):after{content:"";position:absolute;left:21px;top:46px;bottom:-4px;width:2px;background:var(--line)}
.step .n{width:44px;height:44px;border-radius:12px;background:linear-gradient(135deg,var(--ind),var(--ind2));display:grid;place-items:center;font-weight:800;color:#fff;font-size:18px;z-index:1}
.step h3{margin:8px 0 8px;font-size:19px}
.step p{margin:0;color:var(--muted);font-size:15px}
/* table */
.tblwrap{overflow-x:auto;border:1px solid var(--line);border-radius:14px}
table{border-collapse:collapse;width:100%;min-width:760px;font-size:14px}
th,td{text-align:left;padding:13px 15px;border-bottom:1px solid var(--line);vertical-align:top}
thead th{background:var(--panel2);font-size:13px;color:var(--muted);font-weight:700}
th.kf,td.kf{background:rgba(99,102,241,.10)}
thead th.kf{color:#c9d0ff}
td .y{color:#4ade80}td .n{color:#f87171}td .p{color:var(--muted)}
tbody td:first-child{font-weight:600}
/* callout */
.callout{background:linear-gradient(135deg,rgba(254,243,199,.14),rgba(254,243,199,.05));border:1px solid rgba(254,211,77,.35);border-radius:16px;padding:26px 28px;margin-top:36px}
.callout .eyebrow{color:#e0a800}
.callout p{margin:0;color:#e7ddc2;font-size:15.5px}
.callout b{color:#fff}
/* stack list */
.stack{display:flex;flex-direction:column;gap:14px}
.stk{display:grid;grid-template-columns:48px 1fr;gap:16px;background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:20px 22px}
.stk .ic{width:46px;height:46px;border-radius:11px;background:linear-gradient(135deg,rgba(99,102,241,.2),rgba(139,124,255,.2));display:grid;place-items:center;font-size:22px}
.stk h4{margin:0 0 5px;font-size:16.5px}.stk p{margin:0;color:var(--muted);font-size:14.5px}
/* arch */
.arch{background:var(--panel2);border:1px solid var(--line);border-radius:16px;padding:26px;overflow-x:auto}
.arch pre{margin:0;color:#bcd0ee;font-size:13px;line-height:1.7}
.flow{display:flex;flex-wrap:wrap;gap:10px;align-items:center;justify-content:center;font-size:13.5px}
.node{background:var(--panel);border:1px solid var(--line);border-radius:9px;padding:8px 13px;font-family:ui-monospace,Menlo,monospace;font-size:12.5px;color:#cfe0f7}
.node.q{background:var(--ind);border-color:var(--ind);color:#fff}
.node.o{background:#16a34a;border-color:#16a34a;color:#fff}
.node.f{background:var(--amber);border-color:#f2c94c;color:#7a5b00}
.arr{color:var(--dim)}
/* connect */
.connect{background:var(--hero);border-radius:20px;padding:52px 40px;text-align:center;position:relative;overflow:hidden}
.connect:before{content:"";position:absolute;inset:0;background:radial-gradient(600px 300px at 50% -20%,rgba(92,200,255,.2),transparent)}
.connect .wrapc{position:relative}
.connect h2{color:#fff}.connect p{color:#d7def2;max-width:620px;margin:0 auto 26px}
.deeplink{background:rgba(0,0,0,.28);border:1px solid rgba(255,255,255,.16);border-radius:12px;padding:15px 18px;font-family:ui-monospace,Menlo,monospace;font-size:12.5px;color:#bcd0ee;word-break:break-all;text-align:left;max-width:760px;margin:0 auto 16px}
.epline{color:#c3ccea;font-size:13.5px}.epline .ep{background:rgba(0,0,0,.28);border-radius:6px;padding:3px 9px;font-family:ui-monospace,Menlo,monospace;color:#9fd0ff}
/* footer */
footer{border-top:1px solid var(--line);padding:40px 0;color:var(--muted);font-size:14px;margin-top:20px}
.foot{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:16px}
.foot .fl{display:flex;align-items:center;gap:12px}
.foot .dot{width:11px;height:11px;border-radius:3px;background:var(--hero);cursor:default;opacity:.85;border:none;padding:0;display:inline-block;-webkit-appearance:none;appearance:none}.foot .dot:focus{outline:none}
.foot nav a{color:var(--muted);margin-left:18px}.foot .ver{color:var(--dim);font-size:12.5px;user-select:none}
/* doc pages */
.doc{max-width:820px;padding:64px 22px}.doc h1{font-size:40px;margin:0 0 10px}.doc h2{font-size:24px;margin:34px 0 10px}
.doc p,.doc li{color:var(--muted)}.doc pre{background:var(--panel2);border:1px solid var(--line);border-radius:12px;padding:16px;overflow:auto;color:#bcd0ee;font-size:13px}
@media(max-width:900px){
 .nav .links{display:none}.burger{display:inline-block}
 .stats,.grid3,.corp{grid-template-columns:1fr}.grid2{grid-template-columns:1fr}
 h1{font-size:38px}h2{font-size:28px}.hero .wrap{padding:60px 22px 52px}
 .nav .links.open{display:flex;position:absolute;top:66px;left:0;right:0;flex-direction:column;background:var(--bg2);border-bottom:1px solid var(--line);padding:14px 22px;gap:14px}
}

/* language switcher */
.langsw{display:flex;align-items:center;gap:2px;margin-left:10px;padding:3px;border:1px solid var(--line);border-radius:9px;background:rgba(255,255,255,.03)}
.langsw button{background:none;border:none;color:var(--muted);font-size:12.5px;font-weight:700;letter-spacing:.3px;padding:5px 9px;border-radius:7px;cursor:pointer}
.langsw button:hover{color:var(--fg)}
.langsw button.active{background:linear-gradient(135deg,var(--ind),var(--ind2));color:#fff}
@media(max-width:900px){.langsw{margin:12px 0 0}}