:root{
  --bg:#0d1626; --surface:#131f35; --surface-2:#1a2842; --line:#26365a;
  --text:#e2e2e9; --muted:#9aa4b8; --amber:#ffb95c; --amber-ink:#2a1800; --orange:#ff6b35;
  --radius:20px; --max:1080px;
  --sans: system-ui,-apple-system,"Segoe UI",Roboto,"Noto Sans",Ubuntu,Cantarell,sans-serif;
  --mono: ui-monospace,"JetBrains Mono","Ubuntu Mono","DejaVu Sans Mono",monospace;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font:16px/1.6 var(--sans);-webkit-font-smoothing:antialiased}
a{color:var(--amber);text-decoration:none}
a:hover{text-decoration:underline}
.wrap{max-width:var(--max);margin:0 auto;padding:0 20px}
/* header */
header{position:sticky;top:0;z-index:5;background:rgba(13,22,38,.85);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;gap:24px;height:64px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;letter-spacing:.12em;color:var(--text)}
.brand:hover{text-decoration:none}
.brand svg{width:30px;height:30px}
.nav .links{margin-left:auto;display:flex;gap:22px;font-size:15px}
.nav .links a{color:var(--muted)}
.nav .links a:hover{color:var(--text);text-decoration:none}
@media (max-width:640px){.nav .links a:not(.gh):not(.lang){display:none}}
/* hero */
.hero{position:relative;overflow:hidden;padding:88px 0 72px}
.hero::before{content:"";position:absolute;inset:0;opacity:.06;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' width='58' height='58'%3E%3Cpath d='M12 2.5 19.5 5.3V11c0 4.8-3.1 8.9-7.5 10.2C7.6 19.9 4.5 15.8 4.5 11V5.3z' fill='%23ffb95c' transform='translate(6 6) scale(.5)'/%3E%3C/svg%3E");
  background-size:58px 58px;mask-image:linear-gradient(to bottom,#000 40%,transparent)}
.hero .wrap{position:relative;display:grid;grid-template-columns:1.25fr .75fr;gap:48px;align-items:center}
@media (max-width:860px){.hero .wrap{grid-template-columns:1fr}.hero .mark{display:none}}
.eyebrow{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border:1px solid var(--line);border-radius:999px;color:var(--muted);font-size:14px;background:var(--surface)}
.eyebrow b{color:var(--amber);font-weight:600}
h1{font-size:clamp(40px,6vw,64px);line-height:1.05;margin:22px 0 18px;letter-spacing:-.01em}
.acro span{color:var(--amber)}
.lead{font-size:clamp(18px,2.2vw,21px);color:var(--muted);max-width:36em;margin:0 0 30px}
.lead strong{color:var(--text);font-weight:600}
.cta{display:flex;flex-wrap:wrap;gap:12px}
.btn{display:inline-flex;align-items:center;gap:10px;height:48px;padding:0 22px;border-radius:999px;font-weight:600;font-size:16px}
.btn:hover{text-decoration:none}
.btn svg{width:20px;height:20px}
.btn.primary{background:var(--amber);color:var(--amber-ink)}
.btn.primary:hover{filter:brightness(1.07)}
.btn.ghost{border:1px solid var(--line);color:var(--text);background:var(--surface)}
.btn.ghost:hover{background:var(--surface-2)}
.meta{margin-top:18px;color:var(--muted);font-size:14px}
.mark svg{width:100%;max-width:320px;display:block;margin:0 auto;filter:drop-shadow(0 30px 60px rgba(255,185,92,.18))}
/* sections */
section{padding:72px 0;border-top:1px solid var(--line);scroll-margin-top:64px}
h2{font-size:clamp(28px,3.4vw,36px);margin:0 0 10px;letter-spacing:-.01em}
.sub{color:var(--muted);margin:0 0 36px;max-width:42em}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
@media (max-width:900px){.grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:600px){.grid{grid-template-columns:1fr}}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:24px}
.card .ic{width:44px;height:44px;border-radius:12px;display:grid;place-items:center;background:rgba(255,185,92,.12);margin-bottom:16px}
.card .ic svg{width:24px;height:24px;stroke:var(--amber);fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.card h3{margin:0 0 6px;font-size:18px}
.card p{margin:0;color:var(--muted);font-size:15px}
/* flow */
.flow{display:grid;grid-template-columns:1fr auto 1fr auto 1fr;gap:12px;align-items:stretch}
@media (max-width:860px){.flow{grid-template-columns:1fr}.flow .arrow{transform:rotate(90deg);justify-self:center}}
.step{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:22px}
.step .tag{font:600 12px/1 var(--sans);letter-spacing:.14em;text-transform:uppercase;color:var(--amber)}
.step h3{margin:10px 0 6px;font-size:18px}
.step p{margin:0;color:var(--muted);font-size:15px}
.step code{font:14px var(--mono);color:var(--text)}
.arrow{display:grid;place-items:center;color:var(--muted)}
.arrow svg{width:28px;height:28px;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.note{margin-top:20px;color:var(--muted);font-size:15px}
/* install */
.install{display:grid;grid-template-columns:1fr 1fr;gap:16px}
@media (max-width:860px){.install{grid-template-columns:1fr}}
pre{margin:12px 0 0;background:#0a1120;border:1px solid var(--line);border-radius:14px;padding:16px 18px;overflow-x:auto;font:14px/1.7 var(--mono);color:var(--text)}
pre .c{color:#6f7a90}
.grid>*,.install>*,.flow>*,.hero .wrap>*{min-width:0}
body{overflow-x:clip}
h2{line-height:1.2}
@media (max-width:600px){
  .hero{padding:52px 0 44px} section{padding:52px 0}
  .card,.step{padding:18px} pre{font-size:12.5px;padding:14px}
  .sub{margin-bottom:26px}
}
/* screenshots */
.shot{margin:0}
.shot img{display:block;width:100%;height:auto;border-radius:14px;border:1px solid var(--line);background:var(--surface)}
.shot figcaption{color:var(--muted);font-size:14px;margin-top:10px}
.shot.main{margin-bottom:22px}
.shots{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
@media (max-width:860px){.shots{grid-template-columns:1fr}}
/* principles */
.pills{display:flex;flex-wrap:wrap;gap:10px}
.pill{padding:10px 16px;border-radius:999px;background:var(--surface);border:1px solid var(--line);font-size:15px}
.pill b{color:var(--amber)}
blockquote{margin:36px 0 0;padding:0 0 0 18px;border-left:3px solid var(--amber);color:var(--muted);font-size:18px;font-style:italic;max-width:40em}
footer{border-top:1px solid var(--line);padding:32px 0 48px;color:var(--muted);font-size:14px}
footer .wrap{display:flex;flex-wrap:wrap;gap:16px 28px;align-items:center}
footer .brand{font-size:14px}
footer .brand svg{width:22px;height:22px}
footer nav{display:flex;gap:20px;margin-left:auto}
footer nav a{color:var(--muted)}
.shot.arch{margin:0 0 28px}
.shot.arch img{border-radius:20px}
/* lightbox */
a.zoom{display:block;cursor:zoom-in}
a.zoom img{transition:transform .15s ease, box-shadow .15s ease}
a.zoom:hover img{transform:translateY(-2px);box-shadow:0 12px 32px rgba(0,0,0,.45)}
#lb{padding:0;border:0;background:transparent;max-width:96vw;max-height:94vh;overflow:visible}
#lb::backdrop{background:rgba(5,9,18,.88);backdrop-filter:blur(3px)}
#lb img{display:block;max-width:96vw;max-height:90vh;width:auto;height:auto;border-radius:12px;border:1px solid var(--line);cursor:zoom-out}
.lb-close{position:absolute;top:-14px;right:-14px;width:40px;height:40px;border-radius:50%;border:1px solid var(--line);background:var(--surface-2);color:var(--text);font-size:24px;line-height:1;cursor:pointer}
@media (max-width:600px){.lb-close{top:8px;right:8px}}
/* selettore lingua */
.nav .links a.lang{border:1px solid var(--line);border-radius:999px;padding:2px 12px;font-size:13px;font-weight:600;letter-spacing:.08em;color:var(--text)}
.nav .links a.lang:hover{border-color:var(--amber);color:var(--amber)}
.shot.evidence{margin-top:28px;max-width:860px}