/* super3d.it — archivio modelli. Stile HUD ripreso dal sito esistente:
   fondo #080101 con alone rosso scuro, verde terminale #00ff41, Space Grotesk + Share Tech Mono. */
@font-face{font-family:"Space Grotesk";src:url("../fonts/space-grotesk-latin-400-normal.woff2") format("woff2");font-weight:400;font-display:swap}
@font-face{font-family:"Space Grotesk";src:url("../fonts/space-grotesk-latin-700-normal.woff2") format("woff2");font-weight:700;font-display:swap}
@font-face{font-family:"Share Tech Mono";src:url("../fonts/share-tech-mono-latin-400-normal.woff2") format("woff2");font-weight:400;font-display:swap}

:root{
  --bg-void:#080101; --bg-glow:#1a0505;
  --primary:#00ff41; --primary-dim:rgba(0,255,65,.18); --primary-faint:rgba(0,255,65,.06);
  --alert:#ff3333;
  --text-pure:#ffffff; --text:#d4d4d4; --text-muted:#888888; --line:rgba(255,255,255,.09);
  --panel:rgba(255,255,255,.025);
  --font-heading:"Space Grotesk", "Segoe UI", Arial, sans-serif;
  --font-mono:"Share Tech Mono", ui-monospace, "Cascadia Mono", Consolas, monospace;
  --gutter:max(20px, env(safe-area-inset-left, 0px));
  color-scheme:dark;
}
*{box-sizing:border-box}
[hidden]{display:none!important}
html{scroll-behavior:smooth}
body{margin:0;min-height:100vh;color:var(--text);font:16px/1.6 var(--font-heading);
  background:radial-gradient(circle at 30% 20%, var(--bg-glow) 0%, var(--bg-void) 70%) fixed, var(--bg-void);
  -webkit-font-smoothing:antialiased}
body::before{ /* griglia */
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;
  background-image:linear-gradient(var(--primary-faint) 1px, transparent 1px),linear-gradient(90deg, var(--primary-faint) 1px, transparent 1px);
  background-size:64px 64px;mask-image:radial-gradient(circle at 50% 30%, #000 0%, transparent 75%)}
body::after{ /* scanline */
  content:"";position:fixed;inset:0;pointer-events:none;z-index:50;
  background:repeating-linear-gradient(0deg, rgba(0,0,0,.18) 0 1px, transparent 1px 3px);mix-blend-mode:multiply}
a{color:var(--primary);text-decoration:none}
a:hover{text-decoration:underline}
:focus-visible{outline:1px solid var(--primary);outline-offset:3px}
img{max-width:100%;display:block}
main,header,footer{position:relative;z-index:1}
.wrap{max-width:1240px;margin:0 auto;padding-left:var(--gutter);padding-right:max(20px, env(safe-area-inset-right, 0px))}
.mono{font-family:var(--font-mono)}

/* ---------- barra superiore ---------- */
.topbar{position:sticky;top:0;z-index:40;background:linear-gradient(var(--bg-void), rgba(8,1,1,.86));
  border-bottom:1px solid var(--line);backdrop-filter:blur(6px)}
.topbar .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-block:14px}
.logo{font-family:var(--font-mono);color:var(--text-pure);letter-spacing:.32em;font-size:18px;text-shadow:0 0 12px rgba(255,255,255,.25)}
.logo:hover{text-decoration:none}
.nav{display:flex;align-items:center;gap:18px;font-family:var(--font-mono);font-size:13px;letter-spacing:.08em}
.nav a{color:var(--text-muted)}
.nav a:hover,.nav a[aria-current]{color:var(--primary);text-decoration:none}
.status{font-family:var(--font-mono);font-size:11px;letter-spacing:.12em;color:var(--primary);text-align:right;line-height:1.5}
.status small{display:block;color:var(--text-muted)}
@media (max-width:860px){.protocol{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:560px){.protocol{grid-template-columns:minmax(0,1fr)}}
@media (max-width:760px){.status{display:none}.nav{gap:12px;font-size:12px}}
@media (max-width:560px){.topbar .wrap{flex-wrap:wrap;row-gap:8px}.nav{width:100%;justify-content:space-between;font-size:11.5px}}

/* ---------- elementi HUD ---------- */
.tag{display:inline-block;font-family:var(--font-mono);font-size:12px;letter-spacing:.2em;color:var(--text-muted);
  border:1px solid var(--line);padding:4px 12px}
.tag b{color:var(--primary);font-weight:400}
.btn{display:inline-flex;align-items:center;gap:10px;font:14px var(--font-mono);letter-spacing:.1em;color:var(--primary);
  border:1px solid var(--primary);background:var(--primary-faint);padding:10px 16px;cursor:pointer;
  transition:background .15s, box-shadow .15s;text-transform:uppercase}
.btn:hover{background:var(--primary-dim);box-shadow:0 0 18px var(--primary-dim);text-decoration:none}
.btn.ghost{color:var(--text);border-color:var(--line);background:transparent}
.btn.ghost:hover{border-color:var(--primary);color:var(--primary)}
.btn .sz{color:var(--text-muted);font-size:12px}
.readout{position:fixed;left:var(--gutter);bottom:calc(14px + env(safe-area-inset-bottom, 0px));z-index:30;
  font:11px/1.6 var(--font-mono);letter-spacing:.12em;color:var(--text-muted);pointer-events:none}
.readout b{color:var(--primary);font-weight:400}
@media (max-width:1499px){.readout{display:none}}

/* ---------- glitch ---------- */
.glitch{position:relative;display:inline-block}
.glitch::before,.glitch::after{content:attr(data-text);position:absolute;inset:0;overflow:hidden;pointer-events:none;opacity:0}
.glitch::before{color:var(--alert);transform:translate(2px,0);clip-path:inset(0 0 60% 0);animation:g1 3.2s infinite steps(1)}
.glitch::after{color:var(--primary);transform:translate(-2px,0);clip-path:inset(55% 0 0 0);animation:g2 2.7s infinite steps(1)}
@keyframes g1{0%,88%,100%{opacity:0}89%{opacity:.8;clip-path:inset(10% 0 70% 0)}93%{opacity:.8;clip-path:inset(60% 0 15% 0)}}
@keyframes g2{0%,91%,100%{opacity:0}92%{opacity:.8;clip-path:inset(40% 0 35% 0)}96%{opacity:.8;clip-path:inset(75% 0 5% 0)}}
.blink{animation:blink 1.1s steps(1) infinite}
@keyframes blink{50%{opacity:0}}

/* ---------- hero ---------- */
.hero{padding-block:clamp(40px,8vw,96px) 40px}
.hero .wrap{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,1fr);gap:32px;align-items:center}
@media (max-width:900px){.hero .wrap{grid-template-columns:minmax(0,1fr)}}
.hero h1{font-size:clamp(46px,9vw,108px);line-height:.92;letter-spacing:-.03em;margin:22px 0 18px;color:var(--text-pure);font-weight:700}
.hero .sub{font-family:var(--font-mono);color:var(--primary);letter-spacing:.14em;font-size:clamp(14px,1.8vw,18px);margin:0 0 18px;text-transform:uppercase}
.hero p.lead{max-width:56ch;color:var(--text);font-size:17px;margin:0 0 28px}
.hero .ctas{display:flex;flex-wrap:wrap;gap:12px}
.stage{position:relative;aspect-ratio:1/1;max-width:100%;border:1px solid var(--line);
  background:radial-gradient(circle at 50% 45%, rgba(0,255,65,.07), transparent 65%)}
.stage canvas{width:100%;height:100%;display:block;touch-action:none;cursor:grab}
.stage .corner{position:absolute;width:14px;height:14px;border-color:var(--primary);border-style:solid;pointer-events:none}
.stage .tl{top:-1px;left:-1px;border-width:1px 0 0 1px}.stage .tr{top:-1px;right:-1px;border-width:1px 1px 0 0}
.stage .bl{bottom:-1px;left:-1px;border-width:0 0 1px 1px}.stage .br{bottom:-1px;right:-1px;border-width:0 1px 1px 0}
.stage .hud{position:absolute;left:12px;top:10px;font:11px/1.6 var(--font-mono);letter-spacing:.12em;color:var(--text-muted);pointer-events:none}
.stage .hud b{color:var(--primary);font-weight:400}
.stage .loading{position:absolute;inset:0;display:grid;place-items:center;font:13px var(--font-mono);letter-spacing:.14em;color:var(--primary);pointer-events:none}
.stage .poster{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;padding:6%;transition:opacity .4s}

/* ---------- sezioni ---------- */
section.block{padding-block:56px;border-top:1px solid var(--line)}
.block h2{font-size:clamp(28px,4vw,42px);letter-spacing:-.02em;color:var(--text-pure);margin:14px 0 10px;line-height:1.05;text-wrap:balance}
.block .intro{max-width:64ch;color:var(--text-muted);margin:0 0 30px}

/* catalogo */
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,420px),1fr));gap:24px}
.card{position:relative;display:grid;grid-template-rows:auto 1fr;border:1px solid var(--line);background:var(--panel);transition:border-color .2s, box-shadow .2s}
.card:hover{border-color:rgba(0,255,65,.45);box-shadow:0 0 28px rgba(0,255,65,.08)}
.card .shot{aspect-ratio:4/3;background:radial-gradient(circle at 50% 55%, rgba(0,255,65,.08), transparent 65%);display:grid;place-items:center;overflow:hidden}
.card .shot img{height:100%;width:100%;object-fit:contain;padding:4%;transition:transform .5s}
.card:hover .shot img{transform:scale(1.04)}
.card .body{padding:20px 22px 22px;display:grid;gap:12px;align-content:start;min-width:0}
.card .code{font:12px var(--font-mono);letter-spacing:.2em;color:var(--primary)}
.card h3{margin:0;font-size:30px;color:var(--text-pure);letter-spacing:-.01em}
.card p{margin:0;color:var(--text-muted)}
.card .row{display:flex;flex-wrap:wrap;gap:10px;margin-top:6px}
.card a.cover{position:absolute;inset:0;z-index:1}
.card .row a{position:relative;z-index:2}
.kv{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1px;background:var(--line);border:1px solid var(--line)}
.kv div{background:var(--bg-void);padding:8px 10px;min-width:0}
.kv small{display:block;font:10.5px var(--font-mono);letter-spacing:.16em;color:var(--text-muted);text-transform:uppercase}
.kv span{font-size:14px;color:var(--text-pure);font-variant-numeric:tabular-nums}
@media (max-width:480px){.kv{grid-template-columns:repeat(2,minmax(0,1fr))}}

/* protocollo */
.protocol{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1px;background:var(--line);border:1px solid var(--line)}
.protocol div{background:var(--bg-void);padding:20px}
.protocol h4{margin:0 0 6px;font:13px var(--font-mono);letter-spacing:.16em;color:var(--primary);text-transform:uppercase}
.protocol p{margin:0;color:var(--text);font-size:15px}

/* pagina modello */
.crumbs{font:12px var(--font-mono);letter-spacing:.14em;color:var(--text-muted);padding-top:26px}
.crumbs a{color:var(--text-muted)}
.mhead{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,1fr);gap:32px;padding-block:26px 48px;align-items:start}
@media (max-width:960px){.mhead{grid-template-columns:minmax(0,1fr)}}
.mhead h1{font-size:clamp(44px,7vw,84px);line-height:.95;margin:14px 0 8px;color:var(--text-pure);letter-spacing:-.03em}
.mhead .tagline{font-family:var(--font-mono);color:var(--primary);letter-spacing:.08em;margin:0 0 18px}
.mhead .intro{color:var(--text);margin:0 0 22px;max-width:60ch}
.controls{display:flex;flex-wrap:wrap;gap:10px 18px;align-items:center;margin-top:12px;font:13px var(--font-mono);letter-spacing:.06em;color:var(--text-muted)}
.controls label{display:flex;align-items:center;gap:8px;cursor:pointer}
input[type=range]{accent-color:var(--primary);width:150px}
input[type=checkbox]{accent-color:var(--primary)}
.dl{display:grid;gap:10px;margin-top:22px}
.dl .btn{justify-content:space-between}
.dl .btn.main{padding:16px 18px;font-size:15px}
.two{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,420px),1fr));gap:40px}
.tbl{overflow-x:auto;border:1px solid var(--line)}
table{border-collapse:collapse;width:100%;font-size:14px}
th,td{text-align:left;padding:9px 12px;border-bottom:1px solid var(--line);vertical-align:top}
tr:last-child td{border-bottom:0}
th{font:11px var(--font-mono);letter-spacing:.16em;color:var(--primary);text-transform:uppercase;font-weight:400;background:var(--primary-faint)}
td.m{font-family:var(--font-mono);white-space:nowrap;font-variant-numeric:tabular-nums}
td.q{font-family:var(--font-mono);color:var(--primary)}
ol.steps{list-style:none;margin:0;padding:0;display:grid;gap:0;counter-reset:s;border:1px solid var(--line)}
ol.steps li{counter-increment:s;display:grid;grid-template-columns:52px minmax(0,1fr);border-bottom:1px solid var(--line)}
ol.steps li:last-child{border-bottom:0}
ol.steps li::before{content:counter(s, decimal-leading-zero);font:13px var(--font-mono);color:var(--primary);padding:12px 0 12px 14px;border-right:1px solid var(--line)}
ol.steps li span{padding:12px 14px}
ul.bom{margin:0;padding:0;list-style:none;border:1px solid var(--line)}
ul.bom li{padding:9px 12px;border-bottom:1px solid var(--line);display:grid;grid-template-columns:40px minmax(0,1fr);gap:6px}
ul.bom li:last-child{border-bottom:0}
ul.bom li b{font:13px var(--font-mono);color:var(--text-muted);font-weight:400}
.gallery{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,240px),1fr));gap:14px}
.gallery button{all:unset;cursor:zoom-in;border:1px solid var(--line);background:radial-gradient(circle at 50% 55%, rgba(0,255,65,.06), transparent 70%);display:grid;gap:0}
.gallery button:hover,.gallery button:focus-visible{border-color:var(--primary)}
.gallery img{aspect-ratio:1/1;object-fit:contain;width:100%;padding:8px}
.gallery.ambient{grid-template-columns:repeat(auto-fit,minmax(min(100%,360px),1fr))}
.gallery.ambient img{aspect-ratio:4/3;object-fit:cover;padding:0}
.gallery span{font:11px var(--font-mono);letter-spacing:.14em;color:var(--text-muted);padding:8px 12px;border-top:1px solid var(--line);text-transform:uppercase}
dialog.lb{border:1px solid var(--primary);background:var(--bg-void);padding:0;max-width:min(92vw,1100px);color:var(--text)}
dialog.lb::backdrop{background:rgba(0,0,0,.85)}
dialog.lb img{max-height:82vh;width:auto;margin:auto}
dialog.lb form{display:flex;justify-content:space-between;align-items:center;padding:8px 12px;border-bottom:1px solid var(--line);font:12px var(--font-mono);letter-spacing:.12em}
.alert{border:1px solid rgba(255,51,51,.5);background:rgba(255,51,51,.06);padding:16px 18px;color:var(--text)}
.alert b{font:12px var(--font-mono);letter-spacing:.16em;color:var(--alert);font-weight:400;display:block;margin-bottom:6px}
.note{border-left:2px solid var(--primary);background:var(--primary-faint);padding:12px 16px;margin-top:18px}
.prose{max-width:70ch}
.prose h2{font-size:24px;margin-top:36px}
.prose p,.prose li{color:var(--text)}

/* footer */
footer{border-top:1px solid var(--line);margin-top:40px}
footer .wrap{display:flex;flex-wrap:wrap;justify-content:space-between;gap:16px;padding-block:28px calc(60px + env(safe-area-inset-bottom, 0px));font:12px/1.8 var(--font-mono);letter-spacing:.1em;color:var(--text-muted)}
footer a{color:var(--text-muted)}
footer a:hover{color:var(--primary)}

@media (prefers-reduced-motion: reduce){
  .glitch::before,.glitch::after{animation:none;opacity:0}
  .blink{animation:none}
  html{scroll-behavior:auto}
  .card .shot img{transition:none}
}