:root{
  --ink:#182230;
  --ink2:#202433;
  --green:#36a95d;
  --green2:#2e8f4f;
  --paper:#fafaf7;
  --card:#ffffff;
  --muted:#6c7480;
  --line:#e6e8e3;
  --soft:#f2f4ef;
  --code:#111827;
  --shadow:0 18px 50px rgba(24,34,48,.08);
  --radius:18px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;line-height:1.65}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.container{width:min(1160px,calc(100% - 40px));margin:auto}
.nav{position:sticky;top:0;z-index:20;background:rgba(250,250,247,.92);backdrop-filter:blur(18px);border-bottom:1px solid rgba(230,232,227,.8)}
.navin{height:72px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:flex;align-items:center;gap:11px;font-weight:800;letter-spacing:.02em}
.mark{display:inline-flex;align-items:center;justify-content:center;gap:2px;color:var(--ink);font-weight:900;font-size:30px;line-height:1;letter-spacing:-.09em}
.mark .brace{font-family:Georgia,serif;font-weight:700;transform:scaleY(1.18)}
.mark .m{font-family:Arial Black,Inter,sans-serif;letter-spacing:-.08em}
.brand small{display:block;font-size:11px;color:#5b6470;font-weight:700;letter-spacing:.16em;text-transform:uppercase;margin-top:2px}
.links{display:flex;gap:24px;font-size:14px;color:#46505d;align-items:center}
.links a:hover{color:var(--ink)}
.button{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid var(--ink);border-radius:999px;padding:11px 17px;font-weight:750;font-size:14px;transition:.2s ease;background:var(--ink);color:white}
.button:hover{transform:translateY(-1px);box-shadow:0 8px 24px rgba(24,34,48,.15)}
.button.secondary{background:transparent;color:var(--ink);border-color:#cfd4d8}
.button.green{background:var(--green);border-color:var(--green)}
.hero{padding:94px 0 72px}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:64px;align-items:center}
.kicker{font-size:13px;text-transform:uppercase;letter-spacing:.18em;color:var(--green2);font-weight:800}
h1{font-size:clamp(48px,7vw,86px);line-height:.98;letter-spacing:-.055em;margin:14px 0 18px}
.lede{font-size:21px;max-width:700px;color:#46505d;margin:0 0 28px}
.tagline{font-weight:800;font-size:19px;letter-spacing:.02em;margin-bottom:10px}
.ctas{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}
.code-card{background:var(--code);border-radius:24px;box-shadow:var(--shadow);overflow:hidden;border:1px solid rgba(255,255,255,.06)}
.code-head{display:flex;justify-content:space-between;align-items:center;padding:13px 17px;color:#9ca3af;background:#0d1320;font-size:12px}
.code-card pre,.codebox pre{margin:0;padding:22px 24px;overflow:auto;color:#d9e2ef;font-family:"Cascadia Code",Consolas,monospace;font-size:14px;line-height:1.65}
.code-card .comment,.codebox .comment{color:#7d8ba0}.code-card .key,.codebox .key{color:#9bc2ff}.code-card .value,.codebox .value{color:#b8e986}.code-card .active,.codebox .active{color:#56d17c}
.section{padding:72px 0}
.section.alt{background:#f3f5f0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section h2{font-size:38px;line-height:1.1;letter-spacing:-.035em;margin:0 0 12px}
.section-intro{color:var(--muted);font-size:18px;max-width:760px;margin-bottom:34px}
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:0 4px 18px rgba(24,34,48,.025)}
.card h3{margin:5px 0 8px;font-size:20px}.card p{color:var(--muted);margin:0}.card .num{color:var(--green2);font-size:12px;font-weight:900;letter-spacing:.12em}
.rule-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.rule{background:#fff;border:1px solid var(--line);border-radius:16px;padding:18px 20px}.rule b{display:block;margin-bottom:4px}.rule code{font-family:Consolas,monospace;background:#f0f2ef;padding:2px 6px;border-radius:6px}
.arch{display:flex;align-items:center;justify-content:center;gap:14px;flex-wrap:wrap;margin:28px 0}.arch span{background:white;border:1px solid var(--line);padding:14px 18px;border-radius:14px;font-weight:750}.arch i{font-style:normal;color:var(--green);font-weight:900}
.matrix{width:100%;border-collapse:separate;border-spacing:0;background:white;border:1px solid var(--line);border-radius:16px;overflow:hidden}.matrix th,.matrix td{padding:14px 16px;border-bottom:1px solid var(--line);text-align:left}.matrix th{font-size:12px;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);background:#f7f8f5}.matrix tr:last-child td{border-bottom:0}.status{display:inline-flex;align-items:center;gap:7px;font-size:13px;font-weight:750}.dot{width:8px;height:8px;border-radius:50%;background:var(--green)}
.download-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.download{display:flex;align-items:center;justify-content:space-between;gap:18px;background:white;border:1px solid var(--line);padding:18px;border-radius:14px}.download strong{display:block}.download small{color:var(--muted)}
.page-hero{padding:60px 0 36px}.page-hero h1{font-size:58px}.breadcrumb{color:var(--muted);font-size:13px;margin-bottom:10px}
.prose{max-width:860px}.prose h2{font-size:31px;margin:42px 0 12px;letter-spacing:-.025em}.prose h3{margin:28px 0 8px}.prose p,.prose li{color:#46505d}.prose code{font-family:Consolas,monospace;background:#eef1ed;padding:2px 6px;border-radius:5px}.prose pre{background:#111827;color:#d9e2ef;border-radius:16px;padding:20px;overflow:auto;font-family:Consolas,monospace;font-size:14px;line-height:1.55}.callout{border-left:4px solid var(--green);background:#f2f7f2;border-radius:0 14px 14px 0;padding:16px 18px;margin:20px 0}.callout strong{display:block;margin-bottom:4px}
.playgrid{display:grid;grid-template-columns:1fr 1fr;gap:18px}.editor,.output{background:white;border:1px solid var(--line);border-radius:18px;overflow:hidden}.panehead{display:flex;align-items:center;justify-content:space-between;padding:12px 14px;background:#f5f6f3;border-bottom:1px solid var(--line);font-size:13px;font-weight:800}.editor textarea{width:100%;min-height:520px;border:0;outline:0;resize:vertical;padding:18px;background:#111827;color:#d9e2ef;font-family:Consolas,monospace;font-size:14px;line-height:1.55}.output pre{min-height:520px;margin:0;padding:18px;background:#fff;color:#243040;overflow:auto;font-family:Consolas,monospace;font-size:13px}.toolbar{display:flex;gap:10px;flex-wrap:wrap;margin:0 0 16px}.msg{margin-top:12px;padding:10px 13px;border-radius:10px;font-size:13px;background:#edf7ef;color:#22633c;display:none}.msg.err{background:#fff0f0;color:#9b2f2f}
.tabs{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:14px}.tabbtn{border:1px solid var(--line);background:white;border-radius:999px;padding:8px 12px;font-weight:750;cursor:pointer}.tabbtn.active{background:var(--ink);color:white;border-color:var(--ink)}.tabpane{display:none}.tabpane.active{display:block}
.studio-card{display:grid;grid-template-columns:1fr 1.1fr;gap:28px;align-items:center;background:#172233;border-radius:26px;padding:34px;color:white}.studio-card p{color:#c0cad5}.studio-mark{display:inline-flex;align-items:flex-end;font-size:54px;font-weight:950;letter-spacing:-.09em}.studio-mark .green-dot{width:13px;height:13px;border-radius:50%;background:var(--green);margin:0 0 3px -13px}
.footer{border-top:1px solid var(--line);padding:34px 0 50px;color:#59626f;font-size:13px}.footgrid{display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap}
.mobile{display:none}
@media(max-width:880px){.links{display:none}.mobile{display:inline-flex}.hero-grid,.studio-card,.playgrid{grid-template-columns:1fr}.cards,.download-grid,.rule-grid{grid-template-columns:1fr}.hero{padding-top:54px}.page-hero h1{font-size:46px}.hero-grid{gap:34px}.container{width:min(100% - 28px,1160px)}}