/* ============================================================
   D-SLC — DiveSystem MilPro
   Impianto derivato dal sito Commercial Diving, palette blu.
   ============================================================ */

:root{
  --black:#05070a;
  --bg:#080b10;
  --bg2:#0d1219;
  --paper:#0a1a2e;           /* fondo "blueprint" delle sezioni schema */
  --line:rgba(255,255,255,.10);
  --line2:rgba(255,255,255,.06);
  --blue:#0057B8;
  --blue-l:#0069DE;
  --blue-d:#00407f;
  --blue-faint:rgba(0,105,222,.10);
  --gold:#ffcc00;
  --gold-d:#c9a000;
  --white:#fff;
  --txt:rgba(255,255,255,.70);
  --txt2:rgba(255,255,255,.55);
  --muted:rgba(255,255,255,.40);
  --ff:'Inter',system-ui,-apple-system,sans-serif;
  --fm:'JetBrains Mono',ui-monospace,SFMono-Regular,Menlo,monospace;
  --max:1320px;
  --gutter:clamp(1.25rem,5vw,3rem);
  --r:4px;
  --r2:10px;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{
  margin:0;
  font-family:var(--ff);
  background:var(--bg);
  color:var(--txt);
  font-size:16px;
  line-height:1.68;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img,picture,svg{max-width:100%;display:block}
a{color:inherit}
h1,h2,h3,h4{color:var(--white);font-weight:600;line-height:1.14;letter-spacing:-.02em;margin:0}
p{margin:0 0 1.15em}
p:last-child{margin-bottom:0}
strong{color:rgba(255,255,255,.92);font-weight:600}

/* reticolo blueprint di fondo, appena percepibile */
body::before{
  content:'';position:fixed;inset:0;z-index:0;pointer-events:none;
  background-image:linear-gradient(var(--line2) 1px,transparent 1px),
                   linear-gradient(90deg,var(--line2) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(ellipse 120% 80% at 50% 0%,#000 0%,transparent 75%);
  -webkit-mask-image:radial-gradient(ellipse 120% 80% at 50% 0%,#000 0%,transparent 75%);
  opacity:.6;
}
body>*{position:relative;z-index:1}

.container{max-width:var(--max);margin:0 auto;padding:0 var(--gutter)}
.narrow{max-width:820px}

/* ---------- NAV ---------- */
.top-stripe{height:3px;background:linear-gradient(90deg,var(--blue-d),var(--blue-l) 55%,var(--blue-d));position:fixed;top:0;left:0;right:0;z-index:600}
.nav{position:fixed;top:3px;left:0;right:0;z-index:590;transition:background .3s,border-color .3s,backdrop-filter .3s;border-bottom:1px solid transparent}
.nav.scrolled{background:rgba(5,7,10,.86);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom-color:var(--line)}
.nav-inner{max-width:var(--max);margin:0 auto;padding:.7rem var(--gutter);display:flex;align-items:center;justify-content:space-between;gap:1rem}
.nav-logo{display:flex;align-items:center;text-decoration:none}
.nav-logo img{height:26px;width:auto}
.nav-logo-fallback{display:none;flex-direction:column;line-height:1.05}
.nav-logo-m{font-size:.95rem;font-weight:800;color:#fff;letter-spacing:.02em}
.nav-logo-s{font-family:var(--fm);font-size:.55rem;font-weight:500;color:var(--blue-l);letter-spacing:.28em;text-transform:uppercase}
.nav-right{display:flex;align-items:center;gap:.85rem}
.nav-pp{
  font-family:var(--fm);font-size:.66rem;font-weight:700;letter-spacing:.22em;
  text-transform:uppercase;color:var(--gold);white-space:nowrap;
  border:1px solid var(--gold);border-radius:2px;padding:.34rem .7rem;
  background:rgba(255,204,0,.07);
}
@media(max-width:760px){.nav-pp{display:none}}

.btn{display:inline-flex;align-items:center;gap:.5rem;padding:.6rem 1.15rem;border-radius:var(--r);font-size:.78rem;font-weight:600;letter-spacing:.04em;text-decoration:none;border:1.5px solid transparent;cursor:pointer;transition:background .2s,color .2s,border-color .2s,transform .2s}
.btn-gold{background:var(--gold);color:#05070a;border-color:var(--gold)}
.btn-gold:hover{background:#ffd633;border-color:#ffd633;transform:translateY(-1px)}
.btn-line{border-color:rgba(255,255,255,.30);color:#fff}
.btn-line:hover{border-color:var(--blue-l);background:var(--blue-faint)}
.btn-lg{padding:.9rem 1.7rem;font-size:.86rem}
.nav-cta-ic{width:15px;height:15px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;flex:none}
@media(max-width:560px){.nav-cta-txt{display:none}.nav-cta{padding:.6rem .75rem}}

.lang-switch{position:relative}
.lang-summary{display:flex;align-items:center;gap:.35rem;background:none;border:1.5px solid rgba(255,255,255,.22);color:#fff;border-radius:var(--r);padding:.5rem .7rem;font-family:var(--fm);font-size:.68rem;font-weight:500;cursor:pointer;transition:border-color .2s}
.lang-summary:hover{border-color:var(--blue-l)}
.lang-summary svg{width:14px;height:14px;fill:none;stroke:currentColor;stroke-width:1.6}
.lang-menu{position:absolute;top:calc(100% + .4rem);right:0;background:rgba(10,14,20,.97);border:1px solid var(--line);border-radius:var(--r);padding:.3rem;display:none;min-width:74px;backdrop-filter:blur(10px)}
.lang-switch.lang-open .lang-menu{display:block}
.lang-a{display:block;padding:.4rem .6rem;font-family:var(--fm);font-size:.68rem;text-decoration:none;color:var(--txt2);border-radius:3px}
.lang-a:hover,.lang-a.on{background:var(--blue-faint);color:#fff}

/* ---------- SUBNAV ---------- */
.subnav{position:fixed;top:calc(3px + 42px);left:0;right:0;z-index:585;background:rgba(5,7,10,.92);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid var(--line);opacity:0;visibility:hidden;transform:translateY(-8px);transition:opacity .3s,visibility .3s,transform .3s}
.subnav.sn-vis{opacity:1;visibility:visible;transform:none}
.sn-inner{max-width:var(--max);margin:0 auto;padding:0 var(--gutter);display:flex;gap:0;overflow-x:auto;scrollbar-width:none}
.sn-inner::-webkit-scrollbar{display:none}
.sn-a{flex:none;padding:0 1rem;height:44px;display:flex;align-items:center;font-family:var(--fm);font-size:.63rem;font-weight:500;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);text-decoration:none;border-bottom:2px solid transparent;transition:color .2s,border-color .2s}
.sn-a:hover{color:#fff}
.sn-a.sn-on{color:#fff;border-bottom-color:var(--blue-l)}
@media(max-width:1080px){.sn-a{padding:0 .75rem;font-size:.58rem}}

/* ---------- SEZIONI ---------- */
.sec{padding:clamp(4.5rem,9vw,7.5rem) 0;border-top:1px solid var(--line2)}
.sec-alt{background:var(--bg2)}
.sec-paper{background:var(--paper);position:relative;overflow:hidden}
.sec-paper::before{
  content:'';position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(120,180,255,.055) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(120,180,255,.055) 1px,transparent 1px);
  background-size:32px 32px;
}
.sec-paper>*{position:relative}

.eyebrow{display:flex;align-items:center;gap:.7rem;font-family:var(--fm);font-size:.62rem;font-weight:500;letter-spacing:.26em;text-transform:uppercase;color:var(--blue-l);margin:0 0 1.35rem}
.eyebrow::before{content:'';width:26px;height:1px;background:var(--blue-l);flex:none}
.h2{font-size:clamp(1.75rem,3.6vw,2.9rem);font-weight:600;max-width:22ch}
.h2-wide{max-width:30ch}
.lead{font-size:clamp(1rem,1.5vw,1.12rem);color:var(--txt);max-width:68ch;margin-top:1.6rem}
.body-col{max-width:66ch;margin-top:1.8rem}
.body-col p{font-size:1rem}

.sec-head{margin-bottom:clamp(2.5rem,5vw,4rem)}
.sec-head-split{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:clamp(2rem,5vw,4rem);align-items:end}
@media(max-width:900px){.sec-head-split{grid-template-columns:1fr;align-items:start}}

/* ---------- HERO ---------- */
.hero{position:relative;min-height:min(92vh,860px);display:flex;align-items:flex-end;padding-top:7rem;padding-bottom:clamp(3rem,7vw,5.5rem);overflow:hidden;border-top:0}
.hero-bg{position:absolute;inset:0;z-index:0}
.hero-bg .ph,.hero-bg img,.hero-bg .fig-wrap,.hero-bg picture{width:100%;height:100%;object-fit:cover;aspect-ratio:auto!important;display:block}
/* Velo scuro sull'immagine di apertura. Serve a due cose in conflitto: rendere
   leggibile il testo a sinistra e lasciare vedere l'immagine a destra.
   Alleggerito il 2026-08-25: il valore centrale da .80 a .30. La partenza a
   sinistra resta alta, altrimenti titolo e paragrafi diventano illeggibili. */
.hero-bg::after{content:'';position:absolute;inset:0;background:linear-gradient(90deg,rgba(5,7,10,.90) 0%,rgba(5,7,10,.30) 42%,rgba(5,7,10,.10) 100%),linear-gradient(0deg,rgba(5,7,10,.75),transparent 45%)}
.hero-in{position:relative;z-index:2;max-width:var(--max);margin:0 auto;padding:0 var(--gutter);width:100%}
.hero-eyebrow{display:inline-flex;align-items:center;gap:.6rem;font-family:var(--fm);font-size:.62rem;font-weight:500;letter-spacing:.26em;text-transform:uppercase;color:var(--white);border:1px solid var(--line);background:rgba(255,255,255,.04);padding:.42rem .8rem;border-radius:99px;margin-bottom:1.8rem}
.hero-dot{width:6px;height:6px;border-radius:50%;background:var(--gold);flex:none;box-shadow:0 0 8px rgba(255,204,0,.7)}
.hero h1{font-size:clamp(3.2rem,10vw,7rem);font-weight:700;letter-spacing:-.045em;line-height:.92}
.hero-sub{font-size:clamp(1.05rem,2.4vw,1.6rem);font-weight:300;color:rgba(255,255,255,.88);letter-spacing:-.01em;line-height:1.28;margin:.9rem 0 0;max-width:24ch}
.hero-p{max-width:56ch;margin-top:1.8rem;font-size:1.02rem;color:var(--txt)}
.hero-cta{display:flex;flex-wrap:wrap;gap:.75rem;margin-top:2.4rem}

/* ---------- BARRA DATI ---------- */
.qs{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:rgba(0,87,184,.055)}
.qs-grid{display:grid;grid-template-columns:repeat(4,1fr)}
.qs-i{padding:clamp(1.6rem,3vw,2.4rem) clamp(1rem,2vw,1.8rem);border-left:1px solid var(--line2)}
.qs-i:first-child{border-left:0}
.qs-v{font-family:var(--fm);font-size:clamp(1.9rem,4.2vw,2.9rem);font-weight:700;color:#fff;line-height:1;letter-spacing:-.02em}
.qs-l{margin-top:.7rem;font-size:.8rem;color:var(--txt2);line-height:1.45;max-width:24ch}
@media(max-width:820px){.qs-grid{grid-template-columns:repeat(2,1fr)}.qs-i:nth-child(3){border-left:0}.qs-i:nth-child(n+3){border-top:1px solid var(--line2)}}
@media(max-width:420px){.qs-grid{grid-template-columns:1fr}.qs-i{border-left:0}.qs-i+.qs-i{border-top:1px solid var(--line2)}}

/* ---------- SEGNAPOSTO IMMAGINI ---------- */
.ph{width:100%;background:
    repeating-linear-gradient(45deg,rgba(0,105,222,.05) 0 10px,transparent 10px 20px),
    var(--bg2);
  border:1px solid rgba(0,105,222,.28);border-radius:var(--r);
  display:flex;align-items:center;justify-content:center;text-align:center;padding:1.2rem;position:relative}
.ph::before,.ph::after{content:'';position:absolute;width:12px;height:12px;border:1px solid var(--blue-l);opacity:.7}
.ph::before{top:8px;left:8px;border-right:0;border-bottom:0}
.ph::after{bottom:8px;right:8px;border-left:0;border-top:0}
.ph-in{display:flex;flex-direction:column;gap:.45rem;max-width:44ch}
.ph-code{font-family:var(--fm);font-size:.78rem;font-weight:700;letter-spacing:.2em;color:var(--blue-l)}
.ph-alt{font-size:.82rem;color:var(--txt2);line-height:1.5}
.ph-note{font-size:.74rem;color:var(--muted)}
.ph-fmt{font-family:var(--fm);font-size:.62rem;letter-spacing:.18em;color:var(--muted)}

.fig{border:1px solid var(--line);border-radius:var(--r);overflow:hidden;background:var(--bg2)}
.fig-img{width:100%;height:auto}
.fig-cap{padding:.85rem 1.1rem;border-top:1px solid var(--line2);font-family:var(--fm);font-size:.64rem;letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}

/* ---------- GRIGLIE E SCHEDE ---------- */
.grid{display:grid;gap:1px;background:var(--line2);border:1px solid var(--line2)}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
@media(max-width:980px){.grid-3,.grid-4{grid-template-columns:repeat(2,1fr)}}
@media(max-width:680px){.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}}

.card{background:var(--bg);padding:clamp(1.5rem,2.6vw,2.1rem);transition:background .3s,transform .3s;position:relative}
.sec-alt .card{background:var(--bg2)}
.card:hover{background:var(--bg2)}
.sec-alt .card:hover{background:#111823}
.card-n{font-family:var(--fm);font-size:.68rem;font-weight:700;letter-spacing:.2em;color:var(--blue-l);display:block;margin-bottom:.9rem}
.card-h{font-size:1.06rem;font-weight:600;color:#fff;margin:0 0 .7rem;letter-spacing:-.01em}
.card-p{font-size:.9rem;color:var(--txt2);line-height:1.62;margin:0}
.card-limit{margin-top:1.1rem;padding-top:1rem;border-top:1px solid var(--line2)}
.card-limit-l{font-family:var(--fm);font-size:.6rem;font-weight:700;letter-spacing:.2em;text-transform:uppercase;color:var(--gold);display:block;margin-bottom:.5rem}
.card-limit-p{font-size:.88rem;color:var(--txt2);line-height:1.6;margin:0}

/* schede con angoli "tecnici" */
.card-tick::before{content:'';position:absolute;top:0;left:0;width:14px;height:14px;border-top:1px solid var(--blue-l);border-left:1px solid var(--blue-l);opacity:0;transition:opacity .3s}
.card-tick:hover::before{opacity:.8}

/* ---------- BLOCCHI NUMERATI (principio di funzionamento) ---------- */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(1.6rem,3vw,2.6rem);margin-top:clamp(2.5rem,5vw,3.5rem)}
@media(max-width:900px){.steps{grid-template-columns:1fr}}
.step{border-top:2px solid var(--blue);padding-top:1.4rem}
.step-n{font-family:var(--fm);font-size:.72rem;font-weight:700;letter-spacing:.2em;color:var(--blue-l)}
.step-h{font-size:1.08rem;font-weight:600;color:#fff;margin:.6rem 0 .8rem}
.step-p{font-size:.92rem;color:var(--txt2);line-height:1.65;margin:0}

/* ---------- CONFIGURAZIONI ---------- */
.cfg{display:grid;grid-template-columns:repeat(2,1fr);gap:clamp(1.2rem,2.5vw,2rem);margin-top:clamp(2.5rem,5vw,3.5rem)}
@media(max-width:860px){.cfg{grid-template-columns:1fr}}
.cfg-c{border:1px solid var(--line);border-radius:var(--r);padding:clamp(1.6rem,3vw,2.3rem);background:rgba(255,255,255,.015);display:flex;flex-direction:column;gap:1rem}
.cfg-tag{font-family:var(--fm);font-size:.6rem;font-weight:700;letter-spacing:.2em;text-transform:uppercase;color:var(--blue-l)}
.cfg-h{font-size:1.22rem;font-weight:600;color:#fff;letter-spacing:-.01em}
.cfg-p{font-size:.93rem;color:var(--txt2);line-height:1.65;margin:0}

/* ---------- TIMELINE MISSIONE ---------- */
.tl{display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin-top:clamp(2.5rem,5vw,3.5rem);counter-reset:tl}
@media(max-width:860px){.tl{grid-template-columns:1fr}}
.tl-i{padding:2rem 1.6rem 0 0;position:relative}
.tl-i::before{content:'';position:absolute;top:0;left:0;right:0;height:1px;background:var(--line)}
.tl-i::after{content:'';position:absolute;top:-4px;left:0;width:9px;height:9px;border-radius:50%;background:var(--blue-l);box-shadow:0 0 0 4px var(--bg)}
.sec-alt .tl-i::after{box-shadow:0 0 0 4px var(--bg2)}
.tl-n{font-family:var(--fm);font-size:.68rem;font-weight:700;letter-spacing:.2em;color:var(--blue-l)}
.tl-h{font-size:1rem;font-weight:600;color:#fff;margin:.5rem 0 .6rem}
.tl-p{font-size:.88rem;color:var(--txt2);line-height:1.6;margin:0}

/* ---------- BLOCCO TESTO + IMMAGINE ---------- */
.split{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:clamp(2rem,5vw,4.5rem);align-items:center}
.split-rev>*:first-child{order:2}
@media(max-width:900px){.split{grid-template-columns:1fr}.split-rev>*:first-child{order:0}}

/* ---------- ARCHITETTURA ---------- */
.arch{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line2);border:1px solid var(--line2);margin-top:clamp(2.5rem,5vw,3.5rem)}
@media(max-width:900px){.arch{grid-template-columns:1fr}}
.arch-c{background:var(--bg);padding:clamp(1.5rem,2.6vw,2.1rem)}
.sec-alt .arch-c{background:var(--bg2)}
.arch-ref{font-family:var(--fm);font-size:.62rem;font-weight:700;letter-spacing:.2em;color:var(--muted)}
.arch-h{font-size:1.06rem;font-weight:600;color:#fff;margin:.5rem 0 1rem}
.arch-l{list-style:none;margin:0;padding:0}
.arch-l li{position:relative;padding-left:1.1rem;font-size:.88rem;color:var(--txt2);line-height:1.55;margin-bottom:.6rem}
.arch-l li::before{content:'';position:absolute;left:0;top:.62em;width:5px;height:1px;background:var(--blue-l)}

/* ---------- TUTELA ---------- */
.pp-box{border:1px solid var(--line);border-left:3px solid var(--gold);border-radius:var(--r);padding:clamp(1.6rem,3vw,2.4rem);background:rgba(255,204,0,.03);max-width:70ch}
.pp-badge{font-family:var(--fm);font-size:.68rem;font-weight:700;letter-spacing:.28em;text-transform:uppercase;color:var(--gold);display:block;margin-bottom:1rem}
.pp-t{font-size:1.1rem;color:#fff;font-weight:500;line-height:1.5;margin:0 0 .9rem}
.pp-p{font-size:.92rem;color:var(--txt2);margin:0}

/* ---------- CONTATTO ---------- */
.cta-box{text-align:center;padding:clamp(3rem,6vw,5rem) 0}
.cta-mail{display:inline-flex;align-items:center;gap:.6rem;font-family:var(--fm);font-size:clamp(1rem,2.4vw,1.5rem);font-weight:500;color:#fff;text-decoration:none;border-bottom:1px solid var(--blue-l);padding-bottom:.3rem;margin-top:2rem;transition:color .2s,border-color .2s}
.cta-mail:hover{color:var(--gold);border-color:var(--gold)}

/* ---------- FOOTER ---------- */
.footer{background:var(--black);border-top:1px solid var(--line);padding:clamp(3rem,5vw,4rem) 0 2rem}
.footer-in{display:flex;justify-content:space-between;gap:2rem;flex-wrap:wrap}
.footer-logo img{height:30px;width:auto;margin-bottom:1.2rem}
.footer-meta{font-size:.78rem;color:var(--muted);margin:0 0 .4rem;line-height:1.6}
.footer-pp{font-family:var(--fm);font-size:.66rem;letter-spacing:.16em;text-transform:uppercase;color:var(--blue-l);margin-top:1rem}
.footer-langs{display:flex;gap:.5rem;align-items:flex-start}
.footer-langs a{font-family:var(--fm);font-size:.7rem;color:var(--muted);text-decoration:none;padding:.3rem .55rem;border:1px solid var(--line);border-radius:3px}
.footer-langs a.on,.footer-langs a:hover{color:#fff;border-color:var(--blue-l)}
.footer-copy{margin-top:2.5rem;padding-top:1.5rem;border-top:1px solid var(--line2);display:flex;justify-content:space-between;gap:1rem;flex-wrap:wrap;font-size:.74rem;color:var(--muted)}
.footer-copy a{text-decoration:none;color:var(--txt2)}
.footer-copy a:hover{color:var(--gold)}

/* ---------- UTILITY ---------- */
.mt-l{margin-top:clamp(2.5rem,5vw,3.5rem)}
.note{font-size:.86rem;color:var(--muted);border-left:2px solid var(--line);padding-left:1rem;margin-top:2rem;max-width:60ch}

/* ---------- CORREZIONI DI LAYOUT ---------- */
/* Lo stato dell'arte ha 5 schede su griglia da 3: l'ultima occupa le due celle
   rimaste, altrimenti resta un buco visibile in fondo alla seconda riga. */
@media(min-width:981px){
  .grid-3 > .card:nth-child(4):nth-last-child(2){grid-column:span 1}
  .grid-3 > .card:nth-child(5):last-child{grid-column:span 2}
}

/* Nota a lato del titolo di sezione */
.aside-note{border-left:2px solid var(--blue);padding-left:1.4rem;font-size:.95rem;color:var(--txt2);line-height:1.7}
.aside-note p{margin:0}

/* Le tre immagini dell'architettura devono avere la stessa altezza */
.arch-imgs .fig-img{aspect-ratio:4/3;object-fit:cover;width:100%}

/* ---------- SCHEMI VETTORIALI (inc/diagrams.php) ---------- */
.dg{width:100%;height:auto;display:block;overflow:hidden}
.dg-acc{stroke:var(--blue-l);stroke-width:1.6;fill:none;stroke-linecap:round}
.dg-acc-f{fill:var(--blue-l)}
.dg-auv{fill:rgba(0,105,222,.18);stroke:var(--blue-l);stroke-width:1.6}
.dg-rule{stroke:var(--line);stroke-width:1}
.dg-rule-v{stroke:var(--line);stroke-width:1}
.dg-water{stroke:rgba(255,255,255,.45);stroke-width:1.4}
.dg-sea{fill:rgba(0,87,184,.10)}
.dg-plane{fill:rgba(0,87,184,.10);stroke:rgba(255,255,255,.28);stroke-width:1}
.dg-poly{fill:rgba(0,105,222,.14);stroke:var(--blue-l);stroke-width:1.6}
.dg-poly-bad{fill:rgba(255,204,0,.10);stroke:var(--gold)}
.dg-tri{stroke:var(--blue-l);stroke-width:1.4;fill:none;stroke-dasharray:5 5}
.dg-sat-l{stroke:rgba(255,255,255,.22);stroke-width:1;fill:none;stroke-dasharray:3 6}
.dg-dash{stroke:rgba(255,255,255,.30);stroke-width:1;fill:none;stroke-dasharray:4 5}
.dg-ok{stroke:var(--blue-l);stroke-width:1.6;fill:none;stroke-dasharray:6 5;stroke-linecap:round}
.dg-ko{stroke:rgba(255,255,255,.30);stroke-width:1.6;fill:none;stroke-dasharray:6 5}
.dg-cut line{stroke:var(--gold);stroke-width:2.2;stroke-linecap:round}
.dg-err{fill:rgba(0,105,222,.20);stroke:var(--blue-l);stroke-width:1.2;stroke-dasharray:4 4}
.dg-err-bad{fill:rgba(255,204,0,.16);stroke:var(--gold)}
.dg-veh{fill:#fff}
.dg-gold-l{stroke:var(--gold);stroke-width:1.4;fill:none}
.dg-gold-f{fill:var(--gold)}
.dg-t{font-family:var(--fm);font-size:12px;fill:var(--txt2);letter-spacing:.06em}
.dg-tb{font-family:var(--fm);font-size:12px;font-weight:700;fill:#fff;letter-spacing:.2em;text-transform:uppercase}
.dg-t-acc{fill:var(--blue-l)}
.dg-t-gold{fill:var(--gold)}
.dg-t-ok{fill:var(--txt2)}
.dg-t-ko{fill:rgba(255,255,255,.45)}
.dg-sub{font-size:9px}

.dg-box{border:1px solid var(--line);border-radius:var(--r);background:rgba(255,255,255,.015);padding:clamp(1.2rem,2.5vw,2rem)}
.dg-cap{margin-top:1rem;padding-top:.9rem;border-top:1px solid var(--line2);font-family:var(--fm);font-size:.62rem;letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}
@media(max-width:680px){.dg-t,.dg-tb{font-size:14px}}

.dg-ground{stroke:rgba(255,255,255,.20);stroke-width:1;stroke-dasharray:3 4}
.dg-mid{text-anchor:middle}
.dg-end{text-anchor:end}
.dg-notes{display:grid;grid-template-columns:repeat(2,1fr);gap:1rem 1.6rem;margin-top:1.4rem}
@media(max-width:680px){.dg-notes{grid-template-columns:1fr}}
.dg-note{font-size:.84rem;color:var(--txt2);line-height:1.6;margin:0}
.dg-note-k{display:block;font-family:var(--fm);font-size:.6rem;font-weight:700;letter-spacing:.18em;text-transform:uppercase;color:var(--blue-l);margin-bottom:.3rem}

/* Segnaposto usato come sfondo dell'apertura: va tenuto piu' spento, altrimenti
   il suo testo si legge attraverso il paragrafo dell'hero. Sparisce da solo
   quando arriva il render R-01. */
.hero-bg .ph{border:0;opacity:.5}
.hero-bg .ph-in{opacity:.45}
.hero-bg .ph::before,.hero-bg .ph::after{display:none}

/* ---------- DICITURA SUI RENDER ---------- */
/* I mezzi non esistono ancora. Ogni render lo dichiara, sempre, anche a schermo
   intero nel lightbox. Non togliere: e' cio' che impedisce di leggere l'immagine
   come la documentazione di una prova in mare gia' avvenuta. */
.fig-wrap{position:relative;display:block}
.fig-badge{
  position:absolute;left:.7rem;bottom:.7rem;z-index:2;
  font-family:var(--fm);font-size:.56rem;font-weight:500;letter-spacing:.2em;
  text-transform:uppercase;color:rgba(255,255,255,.82);
  background:rgba(5,7,10,.62);backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);
  border:1px solid rgba(255,255,255,.20);border-radius:2px;
  padding:.3rem .55rem;pointer-events:none;
}
.hero-bg .fig-badge{left:auto;right:1.2rem;bottom:1.2rem}
@media(max-width:560px){.fig-badge{font-size:.5rem;letter-spacing:.14em;left:.5rem;bottom:.5rem}}

/* Su schermo stretto NON si serve il 21:9 rimpicciolito: di quel formato resterebbe
   visibile solo una striscia centrale, e per giunta ingrandita. Si serve invece
   `dslc_hero_1080.jpg`, che e' un RITAGLIO VERTICALE 1:2 preso al 72% della larghezza
   dell originale, cioe' dove sta il soggetto. E art direction, non semplice resize:
   se rigeneri l apertura, rigenera anche quel ritaglio. */
@media(max-width:767px){
  .hero-bg img{object-position:center}
}
.dg-shore{fill:rgba(255,255,255,.10);stroke:rgba(255,255,255,.28);stroke-width:1}
.dg-arrow{stroke:var(--gold);stroke-width:1.6;fill:none}
.dg-arrow-h{fill:var(--gold)}

/* Cornice sottile intorno ai render. Serve alle immagini scure: R-09 (formazione in
   bassa luce) sta in una sezione blu e senza bordo si confondeva col fondo, lasciando
   un buco con la sola dicitura a galleggiare. Nell'apertura il bordo non ci va: li'
   l'immagine e' a tutta pagina. */
.fig-wrap{border:1px solid var(--line);border-radius:var(--r);overflow:hidden;background:var(--bg2)}
.hero-bg .fig-wrap{border:0;border-radius:0;background:none}


/* ---------- PATENT PENDING (sezione tutela) ----------
   Richiesta di Giacomo il 2026-08-25: solo la dicitura, grande e centrata.
   Tolti titolare, inventore, tipo di deposito e nazione: erano troppi dati per
   una pagina pubblica, e ogni dato in piu' e' un dato che un domani va mantenuto. */
.pp-wrap{text-align:center;padding:clamp(1rem,3vw,2rem) 0}
.pp-mark{
  font-family:var(--fm);font-weight:700;
  font-size:clamp(2rem,7vw,4.6rem);line-height:1;letter-spacing:.06em;
  text-transform:uppercase;color:var(--gold);
  padding:clamp(1.2rem,3vw,2rem) clamp(1.4rem,4vw,3rem);
  border:2px solid var(--gold);border-radius:var(--r);
  background:rgba(255,204,0,.05);
  display:inline-block;
}
.pp-t{margin:1.6rem auto 0;max-width:44ch;font-size:1rem;color:var(--txt2)}

/* ---------- ASSETTO SEMISOMMERSO (sezione propria) ---------- */
.ss-k{display:grid;grid-template-columns:repeat(2,1fr);gap:1.4rem;margin-top:2.2rem}
@media(max-width:560px){.ss-k{grid-template-columns:1fr}}
.ss-k-i{border-top:2px solid var(--blue);padding-top:1rem}
.ss-k-t{font-size:.95rem;font-weight:600;color:#fff;margin:0 0 .45rem}
.ss-k-p{font-size:.88rem;color:var(--txt2);line-height:1.6;margin:0}

/* Su telefono la barra alta non tiene logo + Patent Pending + lingua + contatto.
   Giacomo vuole Patent Pending visibile: sacrifico il selettore lingua, che nel
   pie' di pagina c'e' comunque. */
@media(max-width:760px){
  .nav-pp{display:inline-block;font-size:.58rem;letter-spacing:.16em;padding:.3rem .5rem}
  .nav .lang-switch{display:none}
}
@media(max-width:400px){
  .nav-pp{font-size:.52rem;letter-spacing:.1em;padding:.28rem .4rem}
}

/* Cerchio tratteggiato intorno al veicolo che resta in zona (SVG-05, riquadro 04). */
.dg-stay{fill:none;stroke:var(--gold);stroke-width:1.2;stroke-dasharray:3 5;opacity:.75}

/* ---------- PROJECT CASSIOPEA (2026-09-28) ----------
   Il nome segue il pannello di fiera: «Project» piccolo e oro sopra,
   «Cassiopea» grande. */
.hero-kicker{display:block;font-family:var(--fm);font-size:clamp(.78rem,1.5vw,1rem);font-weight:700;letter-spacing:.34em;text-transform:uppercase;color:var(--gold);line-height:1;margin:0 0 .9rem .08em}

/* I cinque punti chiave, gli stessi del pannello. Cinque colonne su schermo
   largo; su tablet due, con il quinto a tutta riga per non lasciare un buco. */
.kp{display:grid;grid-template-columns:repeat(5,1fr);gap:clamp(1.4rem,2.4vw,2.2rem)}
.kp-i{border-top:2px solid var(--blue);padding-top:1.4rem}
.kp-n{font-family:var(--fm);font-size:.72rem;font-weight:700;letter-spacing:.2em;color:var(--blue-l)}
.kp-h{font-size:1.08rem;font-weight:600;color:#fff;margin:.6rem 0 .7rem;line-height:1.25}
.kp-p{font-size:.92rem;color:var(--txt2);line-height:1.62;margin:0}
@media(max-width:1100px){.kp{grid-template-columns:repeat(2,1fr)}.kp-i:last-child{grid-column:1/-1}}
@media(max-width:620px){.kp{grid-template-columns:1fr}}

/* Soglie di riconfigurazione: non piu' sezione propria, ma coda della geometria */
.so-in{max-width:70ch;margin-bottom:clamp(1.4rem,3vw,2rem)}
.so-h{font-size:1.2rem;font-weight:600;color:#fff;margin:0 0 .8rem}
.so-lead{font-size:.95rem}
.hero-sub{max-width:31ch}

/* ---------- SFUMATURA BLU E LINEA DI LUCE (2026-10-02) ----------
   Riprese dal blocco Project Cassiopea del sito MilPro (inc/blocco_cassiopea.php),
   su richiesta di Giacomo: la sfumatura si usa largamente, l'animazione con cautela.
   Quindi: sfumatura sul nome, sui titoli di sezione e sui filetti; la linea di luce
   che scorre dall'alto in basso SOLO sull'immagine di apertura, mai altrove. */

/* nome: dal bianco al blu chiaro, con alone. Stessa ricetta del sito MilPro */
.hero-name{display:block;background:linear-gradient(90deg,#fff 30%,#7fb6ff);-webkit-background-clip:text;background-clip:text;color:transparent;filter:drop-shadow(0 0 22px rgba(0,105,222,.55))}

/* titoli di sezione: la stessa sfumatura, alone appena accennato. inline-block perche'
   la sfumatura segua la riga di testo e non tutta la larghezza della colonna */
.h2{display:inline-block;background:linear-gradient(90deg,#fff 40%,#9cc6ff);-webkit-background-clip:text;background-clip:text;color:transparent;filter:drop-shadow(0 0 14px rgba(0,105,222,.28))}
.sec-head .h2,.split .h2{display:block;width:fit-content}

/* filetti dei punti chiave, dei passaggi e delle fasi: blu acceso con bagliore verso l'alto */
.kp-i,.step{border-top-color:#2f86ff;box-shadow:0 -6px 14px -10px rgba(47,134,255,.9)}
.tl-i::before{background:linear-gradient(90deg,#2f86ff,rgba(47,134,255,.15));box-shadow:0 0 10px rgba(47,134,255,.5)}
.tl-i::after{background:#4d9bff;box-shadow:0 0 0 4px var(--bg),0 0 12px 2px rgba(77,155,255,.7)}
.sec-alt .tl-i::after{box-shadow:0 0 0 4px var(--bg2),0 0 12px 2px rgba(77,155,255,.7)}

/* linea di luce sull'apertura. Passa sopra immagine e velo scuro ma sotto il testo
   (.hero-in sta a z-index 2), come sul sito MilPro. 5,5 s, stesso ritmo. Spenta per chi
   ha chiesto al sistema di ridurre le animazioni, e in stampa. */
.hero-scan{position:absolute;left:0;right:0;top:0;height:2px;z-index:1;pointer-events:none;background:linear-gradient(90deg,transparent,rgba(77,155,255,.9) 45%,rgba(160,205,255,1) 50%,rgba(77,155,255,.9) 55%,transparent);box-shadow:0 0 18px 4px rgba(0,105,222,.45);animation:hero-scan 5.5s linear infinite}
/* cautela: la linea non passa dietro il testo. A sinistra, dove ci sono titolo e
   paragrafi, sfuma a zero; resta piena solo sulla parte dell'immagine. */
.hero-scan{-webkit-mask-image:linear-gradient(90deg,transparent 0%,transparent 38%,#000 62%);mask-image:linear-gradient(90deg,transparent 0%,transparent 38%,#000 62%)}
/* sul telefono il testo copre tutta l'immagine: la linea passerebbe dietro le righe */
@media(max-width:767px){.hero-scan{display:none}}
@keyframes hero-scan{0%{top:0;opacity:0}8%{opacity:1}92%{opacity:1}100%{top:100%;opacity:0}}
@media(prefers-reduced-motion:reduce){.hero-scan{animation:none;display:none}}
@media print{.hero-scan{display:none}}