:root { --bg:#0b1220; --el:#121a2a; --text:#e8eefc; --muted:#a9b6d3; --primary:#7aa2ff; --accent:#4be0c6; --shadow:0 10px 30px rgba(0,0,0,.35) }
@media (prefers-color-scheme: light){:root{--bg:#f6f8ff;--el:#fff;--text:#0f172a;--muted:#475569;--primary:#355cff;--accent:#0ea5a2;--shadow:0 8px 24px rgba(2,6,23,.08)}}
*{box-sizing:border-box}html,body{height:100%;scroll-behavior:smooth}body{margin:0;background:radial-gradient(1200px 600px at 85% -10%, rgba(122,162,255,.12), transparent 60%),radial-gradient(1000px 600px at 10% 10%, rgba(75,224,198,.12), transparent 65%),var(--bg);color:var(--text);font:16px/1.55 system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,Cantarell,Noto Sans,Helvetica,Arial,"Apple Color Emoji","Segoe UI Emoji";letter-spacing:.2px}
a{color:var(--primary)}a:hover{text-decoration:underline}.container{width:min(1120px,92vw);margin:0 auto}.nav{position:sticky;top:0;z-index:50;backdrop-filter:blur(10px);background:color-mix(in oklab,var(--bg) 85%,transparent);border-bottom:1px solid color-mix(in oklab,var(--text) 10%,transparent)}.nav-inner{display:flex;align-items:center;justify-content:space-between;padding:14px 0}.brand{display:flex;align-items:center;gap:10px;font-weight:700;color:var(--text)}.brand .logo{width:28px;height:28px;border-radius:8px;display:grid;place-items:center;background:linear-gradient(135deg,var(--primary),var(--accent));box-shadow:var(--shadow)}.brand-name{font-weight:800;letter-spacing:.3px}.nav a.btn{display:inline-flex;align-items:center;gap:8px;padding:9px 14px;border-radius:12px;background:var(--el);border:1px solid color-mix(in oklab,var(--text) 10%,transparent);text-decoration:none}.nav .toggles{display:flex;gap:8px}.chip{display:inline-flex;align-items:center;gap:8px;padding:6px 10px;background:color-mix(in oklab,var(--el) 94%,transparent);border:1px solid color-mix(in oklab,var(--text) 12%,transparent);border-radius:999px;font-size:13px;color:var(--muted)}.hero{padding:56px 0 24px}.hero h1{font-size:clamp(32px,4vw,50px);line-height:1.12;margin:10px 0 8px}.hero p.lead{font-size:clamp(16px,2.2vw,21px);color:var(--muted);max-width:68ch}.grid{display:grid;gap:18px;grid-template-columns:repeat(auto-fit,minmax(260px,1fr))}.card{background:var(--el);border:1px solid color-mix(in oklab,var(--text) 12%,transparent);border-radius:18px;padding:18px;box-shadow:var(--shadow)}.card h3{margin:6px 0 6px;font-size:18px}.card p{margin:6px 0 0;color:var(--muted)}.icons{font-size:20px}.section{padding:32px 0}.section h2{margin:0 0 14px;font-size:26px}.list{display:grid;gap:10px;margin:0;padding:0 0 0 16px}.kbd{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,"Liberation Mono",monospace;font-size:92%;background:color-mix(in oklab,var(--el) 90%,transparent);padding:2px 6px;border-radius:6px;border:1px solid color-mix(in oklab,var(--text) 14%,transparent)}.cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:14px}.button{display:inline-flex;align-items:center;gap:10px;padding:12px 16px;border-radius:14px;border:1px solid color-mix(in oklab,var(--text) 12%,transparent);background:linear-gradient(180deg,color-mix(in oklab,var(--el) 94%,transparent),color-mix(in oklab,var(--el) 98%,transparent));text-decoration:none;font-weight:600;color:var(--text)}.button.primary{background:linear-gradient(180deg,color-mix(in oklab,var(--primary) 24%,var(--el)),var(--el));border-color:color-mix(in oklab,var(--primary) 40%,transparent)}.muted{color:var(--muted)}footer{border-top:1px dashed color-mix(in oklab,var(--text) 14%,transparent);padding:24px 0;color:var(--muted)}.lang-switch{display:inline-flex;gap:6px;padding:6px;border-radius:12px;background:var(--el);border:1px solid color-mix(in oklab,var(--text) 12%,transparent)}.lang-switch button{padding:6px 10px;border-radius:8px;border:none;background:transparent;color:var(--text);font-weight:600;cursor:pointer}.lang-switch button.active{background:color-mix(in oklab,var(--text) 12%,transparent)}.only-en[data-lang="bg"],.only-bg[data-lang="en"]{display:none}.mono{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,"Liberation Mono",monospace}.note{font-size:14px;color:var(--muted)}.two-col{display:grid;gap:18px;grid-template-columns:1.1fr .9fr}@media (max-width:900px){.two-col{grid-template-columns:1fr}}.toggles{display:flex;gap:12px;align-items:center}
.lang-switch{display:flex;gap:6px;background:var(--el);padding:4px;border-radius:10px;border:1px solid color-mix(in oklab,var(--text) 12%,transparent)}
.lang-switch button{cursor:pointer;background:transparent;border:0;padding:6px 10px;border-radius:8px;color:var(--text);font-weight:600}
.lang-switch button.active{background:color-mix(in oklab,var(--primary) 25%, var(--el));}
html[data-lang="en"] .only-bg{display:none !important;}
html[data-lang="bg"] .only-en{display:none !important;}