/* ============================================================
   H4RESEARCH — HOME · DEEP STEEL
   Deep-tech / defense · graphite + signal amber
   Cleaner: less HUD/tag clutter, real photos first.
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&family=Inter:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500;600&display=swap');

/* ---------- Tokens ---------- */
:root{
  --bg:#0b0e13;
  --bg-2:#0e1219;
  --surf:#141a24;
  --surf-2:#19212d;

  --ink:#eef2f7;
  --ink-dim:#9aa7b8;
  --ink-faint:#66717f;

  --amber:#f4a73b;         /* signal accent */
  --amber-deep:#df8c1d;
  --amber-soft:rgba(244,167,59,.12);
  --amber-line:rgba(244,167,59,.34);

  --tech:#5fd0cb;          /* cool micro-status only */
  --tech-soft:rgba(95,208,203,.10);

  --line:rgba(255,255,255,.08);
  --line-2:rgba(255,255,255,.15);

  --font-display:'Space Grotesk',system-ui,sans-serif;
  --font-body:'Inter',system-ui,sans-serif;
  --font-mono:'JetBrains Mono',ui-monospace,monospace;

  --shell:1240px;
  --pad:clamp(20px,5vw,64px);
  --radius:14px;
  --ease:cubic-bezier(.22,.61,.36,1);
}

/* ---------- Reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;font-family:var(--font-body);color:var(--ink);background:var(--bg);
  line-height:1.6;overflow-x:hidden;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}
ul{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-family:var(--font-display);font-weight:600;line-height:1.05;letter-spacing:-.02em}
p{margin:0}

/* ---------- Atmosphere (subtle, no neon) ---------- */
body::before{
  content:"";position:fixed;inset:0;z-index:-3;pointer-events:none;
  background:
    radial-gradient(1200px 760px at 82% -10%, rgba(244,167,59,.07), transparent 60%),
    radial-gradient(1000px 820px at 6% 8%, rgba(40,54,74,.35), transparent 62%),
    linear-gradient(180deg,var(--bg),var(--bg-2) 45%,var(--bg));
}
body::after{
  content:"";position:fixed;inset:0;z-index:-2;pointer-events:none;opacity:.4;
  background-image:
    linear-gradient(rgba(255,255,255,.022) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.022) 1px,transparent 1px);
  background-size:72px 72px;
  mask-image:radial-gradient(circle at 50% 24%,#000 0%,transparent 82%);
}
.grain{
  position:fixed;inset:0;z-index:-1;pointer-events:none;opacity:.04;mix-blend-mode:screen;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ---------- Layout helpers ---------- */
.shell{width:100%;max-width:var(--shell);margin-inline:auto;padding-inline:var(--pad)}
.section{position:relative;padding-block:clamp(78px,10vw,140px)}
section[id],#top{scroll-margin-top:84px}

.eyebrow{
  font-family:var(--font-mono);font-size:.72rem;font-weight:500;letter-spacing:.24em;
  text-transform:uppercase;color:var(--amber);display:inline-flex;align-items:center;gap:.7em;margin:0 0 22px;
}
.eyebrow::before{content:"";width:26px;height:1px;background:var(--amber)}
.eyebrow.tech{color:var(--tech)}
.eyebrow.tech::before{background:var(--tech)}
.eyebrow b{color:var(--ink);font-weight:600}

.lead{color:var(--ink-dim);font-size:clamp(1rem,1.35vw,1.16rem);max-width:58ch}
h2.title{font-size:clamp(1.9rem,4.4vw,3.2rem);letter-spacing:-.025em;font-weight:600}
h2.title .hl{color:var(--amber)}

.reveal{opacity:0;transform:translateY(24px);transition:opacity .8s var(--ease),transform .8s var(--ease)}
.reveal.in-view{opacity:1;transform:none}
[data-stagger].in-view > *{animation:rise .7s var(--ease) both}
@keyframes rise{from{opacity:0;transform:translateY(22px)}to{opacity:1;transform:none}}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:.6em;font-family:var(--font-mono);
  font-size:.82rem;letter-spacing:.04em;padding:14px 24px;border-radius:9px;
  transition:transform .35s var(--ease),box-shadow .35s var(--ease),background .35s,border-color .35s;white-space:nowrap;
}
.btn-primary{background:var(--amber);color:#241706;font-weight:600;box-shadow:0 10px 30px -12px rgba(244,167,59,.55)}
.btn-primary:hover{transform:translateY(-2px);background:var(--amber-deep);box-shadow:0 16px 40px -14px rgba(244,167,59,.7)}
.btn-ghost{border:1px solid var(--line-2);color:var(--ink)}
.btn-ghost:hover{border-color:var(--amber);transform:translateY(-2px)}
.tlink{
  display:inline-flex;align-items:center;gap:.5em;font-family:var(--font-mono);font-size:.82rem;
  letter-spacing:.03em;color:var(--ink);border-bottom:1px solid transparent;padding-bottom:2px;transition:.3s;
}
.tlink .ar{transition:transform .3s var(--ease);color:var(--amber)}
.tlink:hover{border-color:var(--amber)}
.tlink:hover .ar{transform:translateX(5px)}

/* status dot (used sparingly) */
.trl{
  font-family:var(--font-mono);font-size:.66rem;letter-spacing:.08em;color:var(--amber);
  border:1px solid var(--amber-line);border-radius:5px;padding:3px 8px;background:var(--amber-soft);white-space:nowrap;
}

/* ============================================================
   HEADER
   ============================================================ */
.site-header{position:fixed;top:0;left:0;right:0;z-index:100;transition:.4s var(--ease);border-bottom:1px solid transparent}
.site-header.scrolled{background:rgba(11,14,19,.82);backdrop-filter:blur(16px);border-bottom-color:var(--line)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:72px;gap:24px}
.brand-logo img{height:30px;width:auto}
.main-nav{display:flex;align-items:center;gap:30px}
.main-nav a{font-family:var(--font-mono);font-size:.8rem;letter-spacing:.02em;color:var(--ink-dim);transition:.25s;position:relative}
.main-nav a:hover{color:var(--ink)}
.main-nav a::after{content:"";position:absolute;left:0;bottom:-6px;width:0;height:1px;background:var(--amber);transition:width .3s var(--ease)}
.main-nav a:hover::after{width:100%}
.header-tools{display:flex;align-items:center;gap:16px}
.lang-switch{display:flex;font-family:var(--font-mono);font-size:.76rem;border:1px solid var(--line);border-radius:8px;overflow:hidden}
.lang-switch button{padding:6px 12px;color:var(--ink-faint);transition:.25s;letter-spacing:.04em}
.lang-switch button.active{background:var(--amber);color:#241706;font-weight:600}
.nav-cta{display:inline-flex;align-items:center;gap:.5em;font-family:var(--font-mono);font-size:.78rem;padding:9px 18px;border:1px solid var(--line-2);border-radius:8px;transition:.3s}
.nav-cta:hover{border-color:var(--amber);background:var(--amber-soft)}
.menu-toggle{display:none;flex-direction:column;gap:5px;padding:8px}
.menu-toggle span{width:24px;height:2px;background:var(--ink);transition:.3s}

/* ============================================================
   HERO — real photo, minimal chrome
   ============================================================ */
.hero{position:relative;min-height:100svh;display:flex;align-items:flex-end;
  padding-top:clamp(104px,14vh,160px);padding-bottom:clamp(52px,7vw,96px);overflow:hidden}
.hero-media{position:absolute;inset:0;z-index:-1}
.hero-media img{width:100%;height:100%;object-fit:cover;object-position:center 62%;filter:brightness(.8) contrast(1.08) saturate(1.02)}
.hero-media::after{
  content:"";position:absolute;inset:0;
  background:
    linear-gradient(90deg,rgba(9,12,17,.9),rgba(9,12,17,.4) 56%,rgba(9,12,17,.06) 86%),
    linear-gradient(180deg,rgba(9,12,17,.28) 0%,transparent 34%,rgba(9,12,17,.68) 84%,var(--bg) 100%);
}
/* two discreet instrument brackets only */
.hud-corner{position:absolute;width:30px;height:30px;border:1px solid rgba(255,255,255,.22);z-index:2;pointer-events:none}
.hud-corner.tl{top:96px;left:22px;border-right:none;border-bottom:none}
.hud-corner.br{bottom:22px;right:22px;border-left:none;border-top:none}

.hero-inner{position:relative;width:100%;max-width:var(--shell);margin-inline:auto;padding-inline:var(--pad)}
.hero h1{font-size:clamp(2.5rem,6.4vw,5.2rem);font-weight:700;letter-spacing:-.03em;line-height:.98;max-width:17ch}
.hero h1 .hl{color:var(--amber)}
.hero-sub{margin-top:24px;max-width:58ch;color:var(--ink-dim);font-size:clamp(1rem,1.45vw,1.2rem)}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}
/* clean credential line — plain text, no pills */
.hero-cred{display:flex;flex-wrap:wrap;align-items:center;gap:10px 20px;margin-top:38px;padding-top:24px;border-top:1px solid var(--line);
  font-family:var(--font-mono);font-size:.74rem;letter-spacing:.04em;color:var(--ink-dim)}
.hero-cred .sep{color:var(--ink-faint)}
.hero-cred .dot{width:6px;height:6px;border-radius:50%;background:var(--tech);box-shadow:0 0 9px var(--tech);flex:none}
.scroll-cue{position:absolute;left:50%;bottom:22px;transform:translateX(-50%);z-index:2;font-family:var(--font-mono);
  font-size:.62rem;letter-spacing:.22em;color:var(--ink-faint);display:flex;flex-direction:column;align-items:center;gap:9px;text-transform:uppercase}
.scroll-cue i{width:1px;height:34px;background:linear-gradient(var(--amber),transparent);animation:cue 2s ease-in-out infinite}
@keyframes cue{0%,100%{transform:scaleY(.4);opacity:.4}50%{transform:scaleY(1);opacity:1}}

.progress{position:fixed;top:0;left:0;height:2px;width:0;background:linear-gradient(90deg,var(--amber),var(--tech));z-index:200}

/* ============================================================
   INTRO / CHI SIAMO + STATS
   ============================================================ */
.intro-grid{display:grid;grid-template-columns:1fr 1.05fr;gap:clamp(32px,6vw,88px);align-items:end}
.intro-copy .lead{margin-top:20px}
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:0;margin-top:64px;border-top:1px solid var(--line)}
.stat{padding:28px 22px 4px 0;border-right:1px solid var(--line)}
.stat:last-child{border-right:none}
.stat b{font-family:var(--font-display);font-size:clamp(2rem,3.4vw,2.8rem);font-weight:600;color:#fff;display:block;letter-spacing:-.02em}
.stat b .u{color:var(--amber);font-size:.55em}
.stat span{font-family:var(--font-mono);font-size:.72rem;letter-spacing:.03em;color:var(--ink-dim);display:block;margin-top:8px}
.stat small{color:var(--ink-faint);font-size:.74rem;display:block;margin-top:4px}

.domains-nav{display:flex;flex-wrap:wrap;gap:10px;margin-top:44px;padding-top:32px;border-top:1px solid var(--line)}
.domains-nav a{display:inline-flex;align-items:center;gap:11px;font-family:var(--font-mono);font-size:.82rem;letter-spacing:.02em;
  color:var(--ink);border:1px solid var(--line);border-radius:8px;padding:12px 18px;transition:transform .3s var(--ease),border-color .3s,background .3s}
.domains-nav a:hover{border-color:var(--amber);background:var(--amber-soft);transform:translateY(-2px)}
.domains-nav a b{color:var(--amber);font-family:var(--font-display);font-weight:600;font-size:1.05em}

/* ============================================================
   DOMAIN FEATURE (Terra / Aria / Spazio)
   ============================================================ */
.domain-feature{display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(32px,6vw,72px);align-items:center}
.domain-feature.reverse .df-media{order:2}
.df-media{position:relative;border:1px solid var(--line);border-radius:16px;overflow:hidden;background:#0a0d12}
.df-media img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3;transition:transform .8s var(--ease)}
.df-media.contain img{object-fit:contain;padding:8%}
.df-media:hover img{transform:scale(1.04)}
.df-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(9,12,17,.3),transparent 40%);pointer-events:none}
.df-num{position:absolute;top:14px;left:20px;z-index:2;font-family:var(--font-display);font-weight:700;font-size:2.2rem;
  color:rgba(255,255,255,.9);line-height:1;text-shadow:0 2px 20px rgba(0,0,0,.6)}
.df-tech{display:flex;flex-direction:column;gap:9px;margin-top:28px}
.tech-pill{display:flex;align-items:center;justify-content:space-between;gap:12px;border:1px solid var(--line);border-radius:10px;
  padding:15px 18px;font-family:var(--font-mono);font-size:.84rem;letter-spacing:.01em;color:var(--ink);
  background:rgba(255,255,255,.015);transition:transform .3s var(--ease),border-color .3s,background .3s}
.tech-pill:hover{border-color:var(--amber);background:var(--amber-soft);transform:translateX(5px)}
.tech-pill .ar{color:var(--amber);transition:transform .3s var(--ease)}
.tech-pill:hover .ar{transform:translateX(4px)}

/* ============================================================
   MARITIME ECOSYSTEM (water column)
   ============================================================ */
.maritime{background:
  radial-gradient(1000px 620px at 82% 0%,rgba(95,208,203,.05),transparent 60%),
  linear-gradient(180deg,transparent,rgba(14,18,25,.5) 30%,transparent)}
.eco-head{display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:end;margin-bottom:56px}

.eco-column{position:relative;margin-top:16px}
.depth-scale{position:absolute;left:-8px;top:0;bottom:0;width:60px;display:none;flex-direction:column;justify-content:space-between;
  font-family:var(--font-mono);font-size:.62rem;letter-spacing:.08em;color:var(--ink-faint)}
.depth-scale span{position:relative;padding-left:14px}
.depth-scale span::before{content:"";position:absolute;left:0;top:50%;width:8px;height:1px;background:var(--line-2)}

.spine{position:relative;display:flex;flex-direction:column;gap:0}
.spine::before{content:"";position:absolute;left:50%;top:0;bottom:0;width:2px;transform:translateX(-50%);
  background:linear-gradient(180deg,var(--tech),rgba(95,208,203,.15) 55%,var(--amber));opacity:.4}
.spine .pulse{position:absolute;left:50%;top:0;width:7px;height:7px;border-radius:50%;transform:translateX(-50%);
  background:var(--tech);box-shadow:0 0 12px var(--tech);animation:down 4.5s linear infinite}
.spine .pulse:nth-child(2){animation-delay:1.5s;background:var(--amber);box-shadow:0 0 12px var(--amber)}
.spine .pulse:nth-child(3){animation-delay:3s}
@keyframes down{0%{top:-2%;opacity:0}8%{opacity:1}92%{opacity:1}100%{top:102%;opacity:0}}

.eco-level{position:relative;display:grid;grid-template-columns:1fr 88px 1fr;align-items:center;padding-block:20px;z-index:2}
.eco-band{position:absolute;left:50%;transform:translateX(-50%);z-index:3;font-family:var(--font-mono);font-size:.6rem;
  letter-spacing:.14em;text-transform:uppercase;color:var(--ink-faint);background:var(--bg);padding:6px 10px}
.eco-level:has(.node-flagship) .eco-band{display:none}
.node{position:relative;background:linear-gradient(160deg,var(--surf),rgba(10,13,18,.9));border:1px solid var(--line);
  border-radius:var(--radius);padding:22px;transition:transform .4s var(--ease),border-color .4s,box-shadow .4s}
.node:hover{transform:translateY(-4px);border-color:var(--line-2);box-shadow:0 20px 48px -24px rgba(0,0,0,.7)}
.node .nkicker{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:10px}
.node .ntag{font-family:var(--font-mono);font-size:.66rem;letter-spacing:.12em;text-transform:uppercase;color:var(--tech)}
.node h3{font-size:1.3rem;letter-spacing:-.01em;margin-bottom:8px}
.node p{color:var(--ink-dim);font-size:.9rem;line-height:1.5}
.node.left{grid-column:1;text-align:right}
.node.left .nkicker{flex-direction:row-reverse}
.node.right{grid-column:3}
.node .connector{position:absolute;top:50%;width:44px;height:1px;background:linear-gradient(90deg,var(--tech),transparent);opacity:.5}
.node.left .connector{right:-44px;background:linear-gradient(270deg,var(--tech),transparent)}
.node.right .connector{left:-44px}

.node-flagship{grid-column:1 / -1;display:grid;grid-template-columns:1.15fr .85fr;gap:0;overflow:hidden;padding:0;
  border-color:var(--amber-line);background:linear-gradient(150deg,var(--surf-2),rgba(10,13,18,.92));
  box-shadow:0 0 60px -32px rgba(244,167,59,.5);text-align:left}
.node-flagship:hover{transform:none;border-color:var(--amber)}
.flagship-body{padding:32px 34px}
.flagship-body .ntag{color:var(--amber)}
.flagship-body h3{font-size:clamp(1.6rem,2.6vw,2.1rem);margin:8px 0 12px}
.flagship-body p{font-size:.97rem}
.flagship-specs{display:flex;flex-wrap:wrap;gap:9px;margin-top:20px}
.spec{font-family:var(--font-mono);font-size:.7rem;letter-spacing:.02em;color:var(--ink-dim);
  border:1px solid var(--line);border-radius:6px;padding:6px 10px;background:rgba(255,255,255,.015)}
.spec b{color:#fff;font-weight:600}
.flagship-media{position:relative;min-height:260px}
.flagship-media img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.flagship-media::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(10,13,18,.9),transparent 42%)}
.flagship-media .badge{position:absolute;bottom:16px;right:16px;z-index:2}

.opex{margin-top:20px;display:flex;align-items:center;gap:22px;flex-wrap:wrap;
  border:1px solid var(--line);border-left:2px solid var(--amber);border-radius:12px;padding:20px 24px;
  background:linear-gradient(90deg,var(--amber-soft),transparent 60%)}
.opex .mark{font-family:var(--font-display);font-weight:700;font-size:1.4rem;color:#fff;letter-spacing:-.02em;white-space:nowrap}
.opex .mark span{color:var(--amber)}
.opex p{color:var(--ink-dim);font-size:.94rem;flex:1;min-width:240px}

/* ============================================================
   AEGIDA — clean panel (no photo)
   ============================================================ */
.aegida{position:relative;overflow:hidden;background:linear-gradient(180deg,transparent,rgba(14,18,25,.55),transparent)}
.aegida-lattice{position:absolute;inset:0;z-index:-1;opacity:.5;pointer-events:none;
  -webkit-mask-image:radial-gradient(circle at 70% 40%,#000,transparent 72%);mask-image:radial-gradient(circle at 70% 40%,#000,transparent 72%)}
.aegida-grid{display:grid;grid-template-columns:.95fr 1.05fr;gap:clamp(36px,6vw,80px);align-items:center}
.aegida-copy .lead{margin-top:20px}
.aegida-specrow{display:flex;gap:26px;flex-wrap:wrap;margin-top:28px}
.aegida-specrow div b{font-family:var(--font-display);font-size:1.65rem;color:#fff;display:block;font-weight:600}
.aegida-specrow div span{font-family:var(--font-mono);font-size:.68rem;letter-spacing:.05em;color:var(--ink-faint)}
.layers{display:flex;flex-direction:column;gap:12px}
.layer{display:grid;grid-template-columns:52px 1fr;gap:18px;align-items:center;
  border:1px solid var(--line);border-radius:12px;padding:20px 22px;background:linear-gradient(120deg,var(--surf),rgba(10,13,18,.6));
  transition:transform .4s var(--ease),border-color .4s;position:relative;overflow:hidden}
.layer:hover{transform:translateX(5px);border-color:var(--amber)}
.layer .lcode{font-family:var(--font-display);font-weight:700;font-size:1.5rem;color:var(--amber);opacity:.85}
.layer h4{font-family:var(--font-display);font-size:1.04rem;font-weight:600;margin-bottom:4px}
.layer p{color:var(--ink-dim);font-size:.83rem;font-family:var(--font-mono);letter-spacing:.01em}

/* ============================================================
   COMPANY / FILIERA
   ============================================================ */
.company-grid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(36px,6vw,80px);align-items:start}
.big-text{font-family:var(--font-display);font-weight:500;font-size:clamp(1.3rem,2.3vw,1.85rem);line-height:1.3;letter-spacing:-.01em;color:var(--ink)}
.big-text b{color:var(--amber);font-weight:600}
.process{display:flex;align-items:center;flex-wrap:wrap;gap:12px;margin-top:32px}
.process span{font-family:var(--font-mono);font-size:.78rem;letter-spacing:.03em;color:var(--ink);border:1px solid var(--line-2);border-radius:8px;padding:9px 16px}
.process i{width:22px;height:1px;background:var(--amber);flex:none}
.disciplines{display:flex;flex-wrap:wrap;gap:8px;margin-top:32px}
.disciplines span{font-family:var(--font-mono);font-size:.72rem;color:var(--ink-dim);border:1px solid var(--line);border-radius:7px;padding:8px 12px;background:rgba(255,255,255,.015)}
.disciplines span::before{content:"▸ ";color:var(--tech)}

/* ============================================================
   CONTACT + FOOTER
   ============================================================ */
.contact{text-align:center;padding-block:clamp(90px,12vw,160px);position:relative}
.contact h2{font-size:clamp(2rem,4.8vw,3.5rem);max-width:20ch;margin:0 auto 32px}
.contact .lead{margin:0 auto 34px;text-align:center}
.site-footer{border-top:1px solid var(--line);padding-block:44px}
.footer-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap}
.footer-inner img{height:26px;opacity:.9}
.footer-inner p{font-family:var(--font-mono);font-size:.72rem;color:var(--ink-faint);letter-spacing:.02em}
.footer-links{display:flex;gap:22px}
.footer-links a{font-family:var(--font-mono);font-size:.74rem;color:var(--ink-dim);transition:.25s}
.footer-links a:hover{color:var(--amber)}
.footer-legal{margin-top:22px;padding-top:20px;border-top:1px solid var(--line);font-family:var(--font-mono);font-size:.68rem;letter-spacing:.02em;color:var(--ink-faint);line-height:1.7}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media(min-width:1100px){
  .depth-scale{display:flex}
  .eco-column{padding-left:64px}
}
@media(max-width:900px){
  .main-nav,.nav-cta{display:none}
  .menu-toggle{display:flex}
  .site-header.open .main-nav{display:flex;position:absolute;top:72px;left:0;right:0;flex-direction:column;gap:0;
    background:rgba(11,14,19,.97);backdrop-filter:blur(16px);border-top:1px solid var(--line);padding:8px 0}
  .site-header.open .main-nav a{padding:16px var(--pad);border-bottom:1px solid var(--line)}
  .intro-grid,.eco-head,.aegida-grid,.company-grid{grid-template-columns:1fr}
  .domain-feature{grid-template-columns:1fr;gap:26px}
  .domain-feature.reverse .df-media{order:0}
  .stats{grid-template-columns:1fr 1fr}
  .stat{border-right:none;border-bottom:1px solid var(--line);padding:24px 0 20px}
  .node-flagship{grid-template-columns:1fr}
  .flagship-media{min-height:220px;order:-1}
  .flagship-media::after{background:linear-gradient(0deg,rgba(10,13,18,.9),transparent 50%)}
}
@media(max-width:640px){
  .eco-column{padding-left:22px}
  .spine::before{left:8px}.spine .pulse{left:8px}
  .eco-level{grid-template-columns:1fr;padding-left:26px}
  .eco-band{left:8px;transform:none;writing-mode:vertical-rl;padding:0}
  .node.left,.node.right{grid-column:1;text-align:left}
  .node.left .nkicker{flex-direction:row}
  .node .connector{display:none}
  .stats{grid-template-columns:1fr}
  .hero h1{font-size:clamp(2.2rem,9vw,3rem)}
}
@media(prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
  .reveal{opacity:1;transform:none}
}

/* ============================================================
   SHARED (chips / index-tag) — used by sub-pages & hub
   ============================================================ */
.chip{display:inline-flex;align-items:center;gap:.55em;font-family:var(--font-mono);font-size:.72rem;
  letter-spacing:.04em;color:var(--ink-dim);padding:7px 13px;border:1px solid var(--line);border-radius:100px;background:rgba(255,255,255,.02)}
.chip .dot{width:6px;height:6px;border-radius:50%;background:var(--tech);box-shadow:0 0 10px var(--tech)}
.hero-chips{display:flex;flex-wrap:wrap;gap:12px}
.index-tag{font-family:var(--font-mono);font-size:.7rem;letter-spacing:.2em;color:var(--ink-faint)}
.eyebrow.brand{color:var(--amber)}
.eyebrow.brand::before{background:var(--amber)}
.title .hl{color:var(--amber)}

/* ============================================================
   TECHNOLOGY SUB-PAGES
   ============================================================ */
.subhero{position:relative;min-height:82svh;display:flex;align-items:flex-end;overflow:hidden;
  padding-top:clamp(120px,16vh,180px);padding-bottom:clamp(44px,6vw,80px)}
.subhero-media{position:absolute;inset:0;z-index:-1}
.subhero-media img,.subhero-media video{width:100%;height:100%;object-fit:cover;object-position:center;filter:brightness(.74) contrast(1.06)}
.subhero-media::after{content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(9,12,17,.5),rgba(9,12,17,.22) 35%,rgba(9,12,17,.82) 82%,var(--bg)),
  linear-gradient(90deg,rgba(9,12,17,.88),transparent 62%)}
.subhero .shell{position:relative;width:100%}
.tech-cat{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin-bottom:22px}
.tech-cat .eyebrow{margin:0}
.subhero h1{font-size:clamp(2.4rem,6vw,4.6rem);font-weight:700;letter-spacing:-.03em;line-height:.98;max-width:15ch}
.subhero h1 .hl{color:var(--amber)}
.subhero .tech-lead{margin-top:24px;max-width:60ch;color:var(--ink-dim);font-size:clamp(1rem,1.5vw,1.2rem)}
.subhero .hero-chips{margin-top:34px}

.backbar{position:relative;z-index:3;border-bottom:1px solid var(--line)}
.backbar .shell{display:flex;align-items:center;gap:16px;height:52px}
.backbar a{font-family:var(--font-mono);font-size:.76rem;letter-spacing:.03em;color:var(--ink-dim);display:inline-flex;align-items:center;gap:.5em;transition:.25s}
.backbar a:hover{color:var(--amber)}
.backbar .sep{color:var(--ink-faint);font-size:.7rem}
.backbar .cur{font-family:var(--font-mono);font-size:.76rem;color:var(--ink-faint)}

.tech-overview{display:grid;grid-template-columns:.9fr 1.1fr;gap:clamp(32px,6vw,80px);align-items:start}
.tech-overview .big-text{font-size:clamp(1.2rem,2.1vw,1.6rem)}

.section-head{max-width:var(--shell)}
.section-head .index-tag{display:block;margin-bottom:18px}
.section-head .lead{margin-top:22px}

.spec-table{width:100%;border-collapse:collapse;margin-top:44px;border-top:1px solid var(--line)}
.spec-table tr{border-bottom:1px solid var(--line);transition:background .3s}
.spec-table tr:hover{background:var(--tech-soft)}
.spec-table th{font-family:var(--font-mono);font-size:.74rem;letter-spacing:.05em;color:var(--tech);text-transform:uppercase;
  text-align:left;font-weight:500;padding:18px 24px 18px 0;vertical-align:top;width:34%}
.spec-table td{padding:18px 0;color:var(--ink);font-size:.96rem;vertical-align:top}

.kh-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;margin-top:52px;background:var(--line);border:1px solid var(--line);border-radius:16px;overflow:hidden}
.kh-card{background:var(--surf);padding:28px 24px;transition:background .4s}
.kh-card:hover{background:var(--surf-2)}
.kh-card .khn{font-family:var(--font-mono);font-size:.68rem;letter-spacing:.12em;text-transform:uppercase;color:var(--amber);display:block;margin-bottom:16px}
.kh-card ul{display:flex;flex-direction:column;gap:11px}
.kh-card li{color:var(--ink-dim);font-size:.86rem;line-height:1.4;padding-left:16px;position:relative}
.kh-card li::before{content:"";position:absolute;left:0;top:8px;width:6px;height:6px;border:1px solid var(--tech);transform:rotate(45deg)}

.applic{display:flex;flex-wrap:wrap;gap:12px;margin-top:44px}
.applic span{font-family:var(--font-body);font-size:.9rem;color:var(--ink);border:1px solid var(--line);border-radius:100px;
  padding:11px 20px;background:rgba(255,255,255,.015);transition:.3s}
.applic span:hover{border-color:var(--amber);background:var(--amber-soft)}

.video-feature{margin-top:48px;position:relative;border:1px solid var(--line);border-radius:18px;overflow:hidden;background:#000}
.video-feature video{width:100%;display:block;aspect-ratio:16/9;object-fit:cover;background:#000}
.video-feature img{width:100%;display:block}
.video-cap{display:flex;align-items:center;gap:10px;margin-top:16px;font-family:var(--font-mono);font-size:.72rem;color:var(--ink-faint);letter-spacing:.03em}
.video-cap::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--amber);box-shadow:0 0 10px var(--amber)}

.gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:44px}
.gallery figure{margin:0;border:1px solid var(--line);border-radius:14px;overflow:hidden;position:relative}
.gallery img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3;transition:transform .8s var(--ease)}
.gallery figure:hover img{transform:scale(1.06)}
.gallery figcaption{position:absolute;left:0;right:0;bottom:0;padding:14px 16px;font-family:var(--font-mono);font-size:.66rem;
  letter-spacing:.03em;color:var(--ink);background:linear-gradient(transparent,rgba(9,12,17,.9))}

.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:52px}
.related-card{position:relative;display:block;border:1px solid var(--line);border-radius:14px;padding:26px 24px;transition:transform .4s var(--ease),border-color .4s;background:rgba(255,255,255,.015)}
.related-card:hover{transform:translateY(-5px);border-color:var(--amber)}
.related-card .rc-cat{font-family:var(--font-mono);font-size:.66rem;letter-spacing:.12em;text-transform:uppercase;color:var(--tech)}
.related-card .hub-top{display:flex;justify-content:space-between;align-items:center;gap:10px}
.node-link{position:absolute;inset:0;z-index:6;border-radius:inherit}
.related-card h3{font-size:1.2rem;margin:12px 0 8px}
.related-card p{color:var(--ink-dim);font-size:.85rem}
.related-card .rc-go{margin-top:16px;font-family:var(--font-mono);font-size:.74rem;color:var(--amber);display:inline-flex;gap:.5em}

@media(max-width:900px){
  .tech-overview{grid-template-columns:1fr}
  .kh-grid{grid-template-columns:1fr 1fr}
  .gallery,.related-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:640px){
  .kh-grid,.gallery,.related-grid{grid-template-columns:1fr}
  .spec-table th{width:42%;padding-right:14px}
}

/* ============================================================
   HOME RESTRUCTURE 2026-08 — overrides & new sections
   ============================================================ */
/* header un po' piu' grande e leggibile */
.header-inner{height:88px}
.brand-logo img{height:44px}
.main-nav{gap:32px}
.main-nav a{font-size:.92rem;letter-spacing:.01em}
.nav-cta{font-size:.86rem;padding:11px 20px}
.lang-switch{font-size:.82rem}
.lang-switch button{padding:8px 14px}
section[id],#top{scroll-margin-top:96px}
.eyebrow{font-size:.82rem;font-weight:600;letter-spacing:.18em}

/* fix "100%": lo span .u ereditava display:block */
.stat b .u{display:inline}
.stat b{white-space:nowrap}

/* HERO istituzionale — overlay leggero, Italia + tecnologie ben visibili */
.inst-hero .hero-media img{filter:brightness(.95) contrast(1.04) saturate(1.04)}
.inst-hero .hero-media::after{background:
  linear-gradient(90deg,rgba(9,12,17,.8),rgba(9,12,17,.32) 46%,rgba(9,12,17,0) 72%),
  linear-gradient(180deg,rgba(9,12,17,.26) 0%,transparent 34%,rgba(9,12,17,.5) 84%,var(--bg) 100%)}

/* seconda hero — "Robotica autonoma", piu' corta */
.ops-hero{min-height:78svh;padding-top:clamp(40px,6vw,72px)}
.ops-hero .hero-media::after{background:
  linear-gradient(90deg,rgba(9,12,17,.9),rgba(9,12,17,.42) 56%,rgba(9,12,17,.08) 86%),
  linear-gradient(180deg,var(--bg),transparent 22%,transparent 70%,var(--bg) 100%)}

/* contrasto tra domini: sfondo acqua reale scurito + toni alternati */
.maritime{position:relative;isolation:isolate}
.maritime::before{content:"";position:absolute;inset:0;z-index:-1;
  background:url("../images/underwater-atmos.webp") center/cover no-repeat;opacity:.18;
  -webkit-mask-image:linear-gradient(180deg,transparent,#000 12%,#000 80%,transparent);
  mask-image:linear-gradient(180deg,transparent,#000 12%,#000 80%,transparent)}
#terra{background:linear-gradient(180deg,transparent,rgba(22,29,40,.4),transparent)}
#spazio{background:linear-gradient(180deg,transparent,rgba(22,29,40,.4),transparent)}

/* Aria — contesto attorno all'ala fissa (contain + cielo) */
#aria .df-media{background:radial-gradient(125% 130% at 68% 22%,#26384c,#0b1016 72%)}
#aria .df-media img{object-fit:contain;padding:7% 9%}
#aria .df-media::after{background:linear-gradient(180deg,rgba(9,12,17,.15),transparent 45%)}

/* PROGETTI IN CORSO */
.projects-grid{display:flex;flex-wrap:wrap;gap:18px;margin-top:52px}
.project-card{flex:1 1 300px;max-width:560px;border:1px solid var(--line);border-radius:16px;padding:26px 24px;
  background:linear-gradient(160deg,var(--surf),rgba(10,13,18,.85));transition:transform .4s var(--ease),border-color .4s}
.project-card:hover{transform:translateY(-4px);border-color:var(--amber)}
.project-card.is-featured{border-color:var(--amber-line);box-shadow:0 0 50px -30px rgba(244,167,59,.6);
  background:linear-gradient(160deg,var(--surf-2),rgba(10,13,18,.9))}
.project-card.is-placeholder{border-style:dashed;background:rgba(255,255,255,.015)}
.pc-top{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:14px}
.pc-tag{font-family:var(--font-mono);font-size:.64rem;letter-spacing:.1em;text-transform:uppercase;color:var(--tech)}
.project-card.is-featured .pc-tag{color:var(--amber)}
.pc-date{font-family:var(--font-mono);font-size:.66rem;letter-spacing:.08em;color:var(--ink-faint);white-space:nowrap}
.project-card.is-featured .pc-date{color:#fff;font-weight:600}
.project-card h3{font-size:1.28rem;margin-bottom:10px;letter-spacing:-.01em}
.project-card p{color:var(--ink-dim);font-size:.92rem;line-height:1.5}
.project-card.is-placeholder h3,.project-card.is-placeholder p{color:var(--ink-faint)}

/* ---- NAV DROPDOWNS (piu' curate) ---- */
.nav-item{position:relative;display:flex;align-items:center}
.nav-top{cursor:pointer}
.caret{width:0;height:0;border-left:4px solid transparent;border-right:4px solid transparent;border-top:5px solid currentColor;opacity:.6;transition:transform .25s var(--ease);margin-left:.25em}
.nav-item:hover .caret,.nav-item:focus-within .caret,.nav-item.open .caret{transform:rotate(180deg);opacity:1}
.nav-menu{position:absolute;top:100%;left:50%;transform:translateX(-50%) translateY(12px);margin-top:8px;
  background:linear-gradient(180deg,rgba(17,22,31,.99),rgba(11,14,19,.99));backdrop-filter:blur(20px);
  border:1px solid var(--line-2);border-radius:16px;padding:12px;
  box-shadow:0 30px 70px -26px rgba(0,0,0,.9),inset 0 1px 0 rgba(255,255,255,.03);
  z-index:130;display:flex;flex-direction:column;gap:3px;min-width:250px;
  opacity:0;visibility:hidden;pointer-events:none;transition:opacity .22s var(--ease),transform .22s var(--ease)}
.nav-item:hover .nav-menu,.nav-item:focus-within .nav-menu,.nav-item.open .nav-menu{opacity:1;visibility:visible;pointer-events:auto;transform:translateX(-50%) translateY(0)}
.nav-menu a{display:flex;align-items:baseline;gap:12px;padding:12px 14px;border-radius:10px;font-family:var(--font-mono);
  font-size:.9rem;letter-spacing:.01em;color:var(--ink-dim);white-space:nowrap;transition:background .2s,color .2s}
.nav-menu a::after{display:none}
.nav-menu a:hover{background:var(--amber-soft);color:var(--ink)}
.nav-menu a b{color:var(--amber);font-family:var(--font-display);font-weight:700;font-size:1.02em;min-width:1.7em}
.nav-menu.mega{flex-direction:row;gap:22px;padding:20px;min-width:auto}
.nav-group{display:flex;flex-direction:column;gap:2px;min-width:214px}
.nav-group-h{font-family:var(--font-mono);font-size:.66rem;letter-spacing:.16em;text-transform:uppercase;color:var(--tech);padding:4px 14px 10px;border-bottom:1px solid var(--line);margin-bottom:6px}
.nav-menu a.nav-all{color:var(--amber);margin-top:8px;border-top:1px solid var(--line);border-radius:0 0 8px 8px}

@media(max-width:900px){
  .site-header.open .main-nav{top:88px}
  .nav-item{width:100%;flex-direction:column;align-items:stretch}
  .nav-top{display:flex;width:100%;justify-content:space-between;align-items:center}
  .nav-menu,.nav-menu.mega{position:static;transform:none;opacity:1;visibility:visible;pointer-events:auto;
    background:transparent;border:none;box-shadow:none;backdrop-filter:none;border-radius:0;flex-direction:column;
    min-width:0;width:100%;padding:0;margin:0;gap:0;max-height:0;overflow:hidden;transition:max-height .3s var(--ease)}
  .nav-item.open .nav-menu,.nav-item.open .nav-menu.mega{max-height:1600px;transform:none;left:0}
  .nav-group{min-width:0;width:100%}
  .nav-group-h{padding:14px var(--pad) 4px calc(var(--pad) + 18px)}
  .projects-grid{grid-template-columns:1fr}
}

/* ---- separazione domini con color-wash + evidenza Progetti ---- */
#terra{background:radial-gradient(1100px 720px at 14% 4%,rgba(198,132,56,.12),transparent 60%),linear-gradient(180deg,rgba(24,18,11,.55),transparent 32%,rgba(24,18,11,.45))}
#aria{background:radial-gradient(1100px 720px at 82% 2%,rgba(86,152,208,.13),transparent 60%),linear-gradient(180deg,rgba(11,17,26,.5),transparent 34%,rgba(11,17,26,.42))}
#spazio{background:radial-gradient(1100px 820px at 24% 0%,rgba(122,98,214,.14),transparent 62%),linear-gradient(180deg,rgba(15,12,25,.6),transparent 34%,rgba(15,12,25,.48))}
#cyber{background:radial-gradient(1100px 760px at 78% 6%,rgba(58,198,150,.11),transparent 60%),linear-gradient(180deg,rgba(10,21,17,.5),transparent 34%,rgba(10,21,17,.42))}

.main-nav a.nav-progetti{color:var(--amber);font-weight:600}
.main-nav a.nav-progetti::after{background:var(--amber)}
.main-nav a.nav-progetti::before{content:"";display:inline-block;width:6px;height:6px;border-radius:50%;
  background:var(--amber);box-shadow:0 0 8px var(--amber);margin-right:.5em;vertical-align:middle;animation:ppulse 2.4s ease-in-out infinite}
@keyframes ppulse{0%,100%{opacity:.55;transform:scale(.82)}50%{opacity:1;transform:scale(1.12)}}

/* ---- mobile menu: scrollabile + gerarchia piu' chiara ---- */
@media(max-width:900px){
  .site-header.open .main-nav{max-height:calc(100dvh - 88px);overflow-y:auto;overscroll-behavior:contain;-webkit-overflow-scrolling:touch}
  .site-header.open .main-nav > a,.site-header.open .nav-top{font-size:1.02rem}
  .site-header.open .main-nav .nav-menu a{padding-left:calc(var(--pad) + 24px);font-size:.94rem}
  .site-header.open .main-nav .nav-menu a b{color:var(--amber);margin-right:.1em}
  .site-header.open .main-nav .nav-group-h{color:var(--amber);font-size:.68rem;letter-spacing:.2em;
    border-top:1px solid var(--line);border-bottom:none;margin-top:6px;padding:16px var(--pad) 8px calc(var(--pad) + 22px)}
  .site-header.open .nav-item.open > .nav-top{background:rgba(255,255,255,.04)}
  .site-header.open .nav-item.open > .nav-top .caret{border-top-color:var(--amber)}
}

/* ---- sfondi fotografici per dominio (stesso effetto di Acqua) ---- */
#terra,#aria,#spazio{position:relative;isolation:isolate}
#terra::before,#aria::before,#spazio::before{content:"";position:absolute;inset:0;z-index:-1;
  background-position:center;background-size:cover;background-repeat:no-repeat;
  -webkit-mask-image:linear-gradient(180deg,transparent,#000 12%,#000 80%,transparent);
          mask-image:linear-gradient(180deg,transparent,#000 12%,#000 80%,transparent)}
#terra::before{background-image:url("../images/bg-terra.jpg");opacity:.16;filter:saturate(.85) brightness(.9)}
#aria::before{background-image:url("../images/bg-aria.jpg");opacity:.16;filter:saturate(.6) brightness(.82)}
#spazio::before{background-image:url("../images/starfield.svg");opacity:.6}

/* Aria: nuova foto a tutto riquadro (foto reale, non ritaglio) */
#aria .df-media{background:#0a0d12}
#aria .df-media img{object-fit:cover;padding:0}