:root{--bg:#070b1a;--card:#101733;--line:#232c55;--tx:#e8ecff;--mut:#9aa5d1;--ac:#7c4dff;--ac2:#00e5ff;--ok:#00e676}
*{box-sizing:border-box}html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--tx);font:16px/1.6 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif}
a{color:var(--ac2);text-decoration:none}a:hover{text-decoration:underline}
.wrap{max-width:1120px;margin:0 auto;padding:0 18px}
header.top{border-bottom:1px solid var(--line);position:sticky;top:0;background:rgba(7,11,26,.92);backdrop-filter:blur(8px);z-index:5}
header.top .wrap{display:flex;align-items:center;gap:18px;height:58px}
.logo{font-weight:800;font-size:19px;color:var(--tx);letter-spacing:-.02em}.logo b{color:var(--ac2)}
nav{display:flex;gap:16px;margin-left:auto;font-size:14px;align-items:center}nav a{color:var(--mut)}
.lang{border:1px solid var(--line);padding:3px 9px;border-radius:99px}
h1{font-size:clamp(28px,5vw,44px);line-height:1.12;letter-spacing:-.03em;margin:38px 0 12px}
h1 em{font-style:normal;background:linear-gradient(90deg,var(--ac2),var(--ac));-webkit-background-clip:text;background-clip:text;color:transparent}
h2{font-size:20px;margin:0 0 12px}h3{font-size:17px;margin:22px 0 6px}
.lead{color:var(--mut);font-size:18px;max-width:720px;margin:0 0 26px}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:16px;margin:24px 0 40px}
.gcard{display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);border-radius:16px;overflow:hidden;color:var(--tx)}
.gcard:hover{border-color:var(--ac);text-decoration:none}
.gcard .demo{background:#f8fafc;color:#0f172a;padding:16px;min-height:120px;display:flex;align-items:center}.gcard .demo>*{width:100%}
.gcard .meta{padding:14px 16px}.gcard .meta strong{display:block;font-size:16px}.gcard .meta span{color:var(--mut);font-size:14px}
#app{display:grid;grid-template-columns:340px 1fr;gap:16px;margin:22px 0 36px;align-items:start}
.out{display:grid;gap:16px;min-width:0}
.panel{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:16px;min-width:0}
.form label{display:block;margin-bottom:10px;font-size:13px;color:var(--mut)}
.form label span{display:block;margin-bottom:3px}
input,select{width:100%;background:#0a1026;color:var(--tx);border:1px solid var(--line);border-radius:9px;padding:8px 10px;font:inherit;font-size:14px}
input[type=color]{padding:2px;height:36px}
input:focus,select:focus{outline:2px solid var(--ac);border-color:transparent}
button{background:linear-gradient(90deg,var(--ac),#536dfe);color:#fff;border:0;border-radius:9px;padding:9px 16px;font:inherit;font-weight:700;font-size:14px;cursor:pointer}
button.ghost{background:none;border:1px solid var(--line);color:var(--mut);font-weight:500;width:100%}
.row{display:flex;justify-content:space-between;align-items:center;margin-bottom:10px}.row h2{margin:0}
iframe{width:100%;height:300px;border:0;border-radius:10px;background:#f8fafc}
pre{margin:0;background:#050816;border:1px solid var(--line);border-radius:10px;padding:14px;overflow:auto;max-height:440px}
code{font:13px/1.55 ui-monospace,Consolas,monospace;color:#c9d4ff;white-space:pre}
.prose{max-width:760px;margin-bottom:48px}.prose p,.prose li{color:#c5cdf0}.prose code{background:#0a1026;padding:1px 6px;border-radius:5px;white-space:normal}
.cta{background:linear-gradient(120deg,#1b1454,#0b2a4a);border:1px solid var(--ac);border-radius:16px;padding:20px;margin:26px 0;display:flex;gap:16px;align-items:center;justify-content:space-between;flex-wrap:wrap}
.cta a{background:var(--ok);color:#04130b;font-weight:800;padding:10px 18px;border-radius:10px}
.ad{margin:22px 0;min-height:90px}
footer{border-top:1px solid var(--line);color:var(--mut);font-size:14px;padding:24px 0 40px}footer a{color:var(--mut);margin-right:14px}
@media(max-width:820px){#app{grid-template-columns:1fr}nav a.hide{display:none}}