/* ══════════════ AITRE 2026 — scroll-scrub su film unico ══════════════ */

:root{
  --ink:#eef2f7;
  --dim:#9fb0c4;
  --faint:#6b7f96;
  --bg:#05070b;
  --cyan:#57c8ff;
  --amber:#ff9d4d;
  --line:rgba(255,255,255,.14);
  --serif:'Syne','Syne Fallback',Georgia,serif;
  --sans:'DM Sans','DM Sans Fallback',system-ui,-apple-system,'Segoe UI',sans-serif;
  --pad:clamp(20px,4vw,64px);
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:auto}
body{
  background:var(--bg);
  color:var(--ink);
  font-family:var(--sans);
  font-weight:300;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
button,input,textarea,select{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}

/* ── il film ─────────────────────────────────────────────── */
.stage{position:fixed;inset:0;z-index:0;background:#000}
#film{width:100%;height:100%;object-fit:cover;display:block}

.shade{
  position:absolute;inset:0;pointer-events:none;
  background:
    linear-gradient(100deg, rgba(3,5,9,.92) 0%, rgba(3,5,9,.74) 26%, rgba(3,5,9,.22) 52%, rgba(3,5,9,0) 72%),
    linear-gradient(to top, rgba(3,5,9,.75) 0%, rgba(3,5,9,0) 38%);
}
.vignette{
  position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(120% 90% at 50% 45%, transparent 45%, rgba(0,0,0,.55) 100%);
}
.grain{
  position:absolute;inset:0;pointer-events:none;opacity:.05;mix-blend-mode:overlay;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='120' height='120' filter='url(%23n)'/%3E%3C/svg%3E");
}

.spacer{position:relative;z-index:-1;width:1px}

/* ── fermate ─────────────────────────────────────────────── */
.stations{position:fixed;inset:0;z-index:2;pointer-events:none}
.station{
  position:absolute;inset:0;
  display:flex;flex-direction:column;justify-content:center;
  padding:0 var(--pad);
  padding-left:clamp(20px,7vw,120px);
  max-width:min(56rem,64vw);
  opacity:0;visibility:hidden;
  transform:translate3d(0,26px,0);
  will-change:opacity,transform;
}
.station[data-visible]{visibility:visible}
.station > *{pointer-events:auto}

.eyebrow{
  font-family:var(--sans);font-size:.72rem;font-weight:500;
  letter-spacing:.28em;text-transform:uppercase;color:var(--cyan);
  margin-bottom:1.1rem;
}
.narrator{
  font-family:var(--serif);font-style:italic;font-size:clamp(.95rem,1.4vw,1.15rem);
  color:var(--dim);margin-bottom:1rem;
}
h1{
  font-family:var(--serif);font-weight:600;line-height:1.02;
  font-size:clamp(2.6rem,6.4vw,5.4rem);letter-spacing:-.025em;
  display:flex;flex-direction:column;
}
h1 span:last-child{color:var(--dim)}
h2{
  font-family:var(--serif);font-weight:600;line-height:1.06;
  font-size:clamp(2rem,4.4vw,3.6rem);letter-spacing:-.022em;
  margin-bottom:1.4rem;
}
.lead{
  margin-top:1.6rem;max-width:34rem;
  font-size:clamp(1rem,1.5vw,1.2rem);line-height:1.6;color:var(--dim);
}
.body-copy{max-width:32rem;font-size:clamp(.95rem,1.25vw,1.06rem);line-height:1.72;color:var(--dim)}

.cue{margin-top:3rem;display:flex;align-items:center;gap:.9rem;color:var(--faint);
  font-size:.72rem;letter-spacing:.24em;text-transform:uppercase}
.cue i{width:52px;height:1px;background:linear-gradient(90deg,var(--faint),transparent);position:relative}
.cue i::after{content:'';position:absolute;top:-2px;left:0;width:14px;height:5px;
  background:var(--cyan);filter:blur(2px);animation:run 2.4s cubic-bezier(.4,0,.2,1) infinite}
@keyframes run{0%{left:0;opacity:0}25%{opacity:1}100%{left:52px;opacity:0}}

.chips{display:flex;flex-wrap:wrap;gap:.6rem;margin-top:2rem}
.chips button{
  border:1px solid var(--line);border-radius:999px;padding:.55rem 1.15rem;
  font-size:.82rem;color:var(--dim);letter-spacing:.02em;
  background:rgba(10,16,26,.5);backdrop-filter:blur(10px);
  transition:border-color .25s,color .25s,transform .25s,background .25s;
}
.chips button:hover{border-color:var(--cyan);color:var(--ink);transform:translateY(-2px);
  background:rgba(20,40,60,.6)}

.telemetry{display:flex;gap:2.4rem;margin-top:2.2rem;flex-wrap:wrap}
.telemetry dt{font-size:.66rem;letter-spacing:.22em;text-transform:uppercase;color:var(--faint);margin-bottom:.4rem}
.telemetry dd{font-family:var(--serif);font-size:1.5rem;font-weight:500;color:var(--ink)}

/* ── contatto ────────────────────────────────────────────── */
.station--contact{max-width:min(78rem,90vw)}
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(2rem,5vw,5rem);align-items:center}
.form{display:flex;flex-direction:column;gap:.9rem}
.field{position:relative}
.field input,.field textarea{
  width:100%;background:rgba(6,11,18,.93);border:1px solid var(--line);border-radius:10px;
  padding:1.35rem .95rem .55rem;color:var(--ink);font-size:.95rem;resize:vertical;
  backdrop-filter:blur(12px);transition:border-color .25s,background .25s;
}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--cyan);background:rgba(10,19,30,.96)}
.field label{
  position:absolute;left:.95rem;top:1rem;color:var(--faint);font-size:.95rem;
  pointer-events:none;transition:all .18s ease;
}
.field input:focus + label,.field input:not(:placeholder-shown) + label,
.field textarea:focus + label,.field textarea:not(:placeholder-shown) + label{
  top:.42rem;font-size:.64rem;letter-spacing:.16em;text-transform:uppercase;color:var(--cyan);
}
.submit{
  margin-top:.5rem;display:inline-flex;align-items:center;justify-content:space-between;gap:1rem;
  border:1px solid var(--cyan);border-radius:999px;padding:.9rem 1.6rem;color:var(--ink);
  font-size:.9rem;letter-spacing:.03em;transition:background .25s,transform .25s;
}
.submit:hover{background:rgba(87,200,255,.14);transform:translateY(-2px)}
.form-status{font-size:.8rem;color:var(--cyan);min-height:1.2em}
.restart{
  margin-top:2rem;border:1px solid var(--line);border-radius:999px;padding:.7rem 1.3rem;
  font-size:.8rem;color:var(--dim);letter-spacing:.06em;transition:border-color .25s,color .25s;
}
.restart:hover{border-color:var(--cyan);color:var(--ink)}

/* ── interfaccia ─────────────────────────────────────────── */
.topbar{
  position:fixed;top:0;left:0;right:0;z-index:6;
  display:flex;align-items:center;gap:1.4rem;
  padding:clamp(14px,2.2vw,26px) var(--pad);
}
/* marchio e stato — ripresi dal sito precedente */
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--ink);
  font-family:var(--serif);font-weight:600;letter-spacing:.27em;font-size:14px;line-height:1}
.brand__glyph{
  display:grid;place-items:center;width:33px;height:33px;border-radius:50%;
  border:1px solid rgba(152,217,255,.45);font-size:8px;letter-spacing:.05em;color:var(--ink);
  box-shadow:inset 0 0 14px rgba(61,164,255,.25), 0 0 22px rgba(61,164,255,.14);
}
.status{display:flex;align-items:center;gap:8px;color:var(--faint);
  font-size:8px;letter-spacing:.16em;text-transform:uppercase}
.status i{width:5px;height:5px;border-radius:50%;background:#71ffbe;
  box-shadow:0 0 9px #71ffbe;animation:pulse 2s ease-in-out infinite}
@keyframes pulse{0%,100%{opacity:.35}50%{opacity:1}}

.topbar__tools{margin-left:auto;display:flex;align-items:center;gap:26px}

/* musica — le quattro barrette del sito precedente */
.sound-toggle{display:flex;align-items:center;gap:2px;height:22px;color:var(--dim)}
.sound-toggle span{width:1px;height:5px;background:var(--faint);transition:height .2s,background .2s}
.sound-toggle span:nth-child(2){height:11px}
.sound-toggle span:nth-child(3){height:8px}
.sound-toggle:hover span{background:var(--dim)}
.sound-toggle[aria-pressed="true"] span{background:var(--cyan);animation:equalize .7s alternate infinite}
.sound-toggle[aria-pressed="true"] span:nth-child(2){animation-delay:-.3s}
.sound-toggle[aria-pressed="true"] span:nth-child(3){animation-delay:-.55s}
.sound-toggle[aria-pressed="true"] span:nth-child(4){animation-delay:-.15s}
@keyframes equalize{from{height:3px}to{height:15px}}

/* indice */
.menu-toggle{display:flex;align-items:center;gap:12px;color:var(--dim);
  text-transform:uppercase;letter-spacing:.18em;font-size:9px;transition:color .25s}
.menu-toggle:hover,.menu-toggle[aria-expanded="true"]{color:var(--ink)}
.menu-toggle i{display:block;width:28px;height:1px;background:currentColor;position:relative;
  transition:width .3s}
.menu-toggle i::after{content:"";position:absolute;width:18px;height:1px;right:0;top:6px;
  background:currentColor;transition:width .3s}
.menu-toggle[aria-expanded="true"] i::after{width:28px}

.tool{
  display:flex;align-items:center;height:28px;padding:0 .7rem;
  border:1px solid var(--line);border-radius:8px;background:rgba(10,16,26,.55);
  backdrop-filter:blur(10px);transition:border-color .25s;
}
.tool:hover{border-color:var(--cyan)}
.tool--text{font-size:.62rem;letter-spacing:.18em;text-transform:uppercase;color:var(--dim)}

/* ── pannello indice ─────────────────────────────────────── */
.menu{
  position:fixed;z-index:28;top:76px;right:clamp(18px,2.5vw,42px);
  width:min(420px,calc(100vw - 36px));max-height:calc(100svh - 96px);overflow:auto;
  background:rgba(3,8,15,.84);border:1px solid rgba(151,214,255,.14);
  border-radius:18px;backdrop-filter:blur(24px) saturate(1.15);
  box-shadow:0 24px 80px rgba(0,0,0,.42), inset 0 1px rgba(255,255,255,.035);
  padding:34px 38px 38px;opacity:0;visibility:hidden;
  transform:translateY(-9px) scale(.985);transform-origin:top right;
  transition:opacity .3s,visibility .3s,transform .35s cubic-bezier(.2,.75,.2,1);
}
.menu.is-open{opacity:1;visibility:visible;transform:none}
.menu__grid{width:100%;display:grid}
.menu__grid .eyebrow{margin-bottom:14px}
.menu__grid > a{
  display:flex;gap:18px;padding:10px 0;border-bottom:1px solid var(--line);
  text-decoration:none;color:var(--ink);
  font-family:var(--serif);font-weight:500;font-size:clamp(17px,1.65vw,24px);line-height:1.15;
  letter-spacing:-.02em;transition:color .2s,padding .2s;
}
.menu__grid > a:hover{color:var(--cyan);padding-left:7px}
.menu__grid > a span{font-family:var(--sans);font-weight:400;font-size:9px;
  letter-spacing:.15em;color:var(--faint);padding-top:10px}

.rail{position:fixed;right:var(--pad);top:50%;transform:translateY(-50%);z-index:6}
.rail ol{list-style:none;display:flex;flex-direction:column;gap:.2rem;align-items:flex-end}
.rail button{
  display:grid;grid-template-columns:auto 2.2ch 34px;align-items:center;gap:.7rem;padding:.42rem 0;
  color:var(--faint);font-size:.6rem;letter-spacing:.2em;transition:color .3s;
}
.rail button > span{justify-self:end;font-variant-numeric:tabular-nums}
.rail button:hover{color:var(--ink)}
.rail em{font-style:normal;opacity:0;transform:translateX(6px);
  transition:opacity .3s,transform .3s;font-size:.64rem;letter-spacing:.14em;
  text-transform:uppercase;order:-1;justify-self:end;white-space:nowrap}
.rail button:hover em,.rail li[data-on] em{opacity:1;transform:none}
.rail i{width:16px;height:1px;background:currentColor;opacity:.4;justify-self:end;
  transition:width .3s,opacity .3s}
.rail li[data-on] button{color:#b9e9ff}
.rail li[data-on] i{width:34px;opacity:1;box-shadow:0 0 8px var(--cyan)}

.progress{position:fixed;left:0;top:0;height:2px;width:100%;z-index:7;background:rgba(255,255,255,.07)}
.progress i{display:block;height:100%;width:0;
  background:linear-gradient(90deg,var(--cyan),var(--amber));box-shadow:0 0 12px rgba(87,200,255,.6)}

/* ── regia ───────────────────────────────────────────────── */
.panel{
  position:fixed;left:var(--pad);bottom:var(--pad);z-index:8;width:min(330px,84vw);
  padding:1.2rem 1.25rem 1.1rem;border:1px solid var(--line);border-radius:14px;
  background:rgba(6,10,17,.9);backdrop-filter:blur(20px);
  opacity:0;transform:translateY(12px);pointer-events:none;transition:opacity .3s,transform .3s;
}
.panel[data-open]{opacity:1;transform:none;pointer-events:auto}
.panel h3{font-family:var(--serif);font-size:.95rem;font-weight:600;margin-bottom:.25rem}
.panel__hint{font-size:.7rem;color:var(--faint);line-height:1.5;margin-bottom:1rem}
.ctl{display:block;margin-bottom:.95rem}
.ctl > span{display:flex;justify-content:space-between;font-size:.72rem;color:var(--dim);margin-bottom:.35rem}
.ctl b{color:var(--cyan);font-weight:500;font-variant-numeric:tabular-nums}
.ctl small{display:block;font-size:.62rem;color:var(--faint);line-height:1.45;margin-top:.3rem}
.ctl input[type=range]{width:100%;accent-color:var(--cyan)}
.ctl--row{display:flex;align-items:center;justify-content:space-between;gap:.8rem}
.ctl--row > span{margin:0;font-size:.72rem;color:var(--dim)}
.panel select{background:rgba(12,18,28,.9);border:1px solid var(--line);
  border-radius:7px;padding:.32rem .5rem;font-size:.74rem}
.readout{display:grid;grid-template-columns:1fr 1fr;gap:.5rem .8rem;
  margin-top:.9rem;padding-top:.9rem;border-top:1px solid var(--line)}
.readout div{display:flex;flex-direction:column;gap:.15rem}
.readout em{font-style:normal;font-size:.58rem;letter-spacing:.16em;
  text-transform:uppercase;color:var(--faint)}
.readout b{font-size:.82rem;font-weight:400;font-variant-numeric:tabular-nums;color:var(--ink)}

/* ── dialogo nodi ────────────────────────────────────────── */
.node-dialog{
  /* margin:auto centra il dialogo: il reset *{margin:0} in cima al foglio
     cancella quello del browser, e senza lo ributta in alto a sinistra. */
  margin:auto;
  border:1px solid var(--line);border-radius:16px;padding:2rem;max-width:30rem;
  background:rgba(6,10,17,.94);backdrop-filter:blur(24px);color:var(--ink);
}
.node-dialog::backdrop{background:rgba(2,4,8,.72);backdrop-filter:blur(4px)}
.node-dialog h3{font-family:var(--serif);font-size:1.5rem;font-weight:600;margin-bottom:.8rem}
.node-dialog__body{color:var(--dim);line-height:1.7;font-size:.95rem}
.node-dialog__close{position:absolute;top:1rem;right:1.1rem;font-size:1.4rem;color:var(--faint)}
.node-dialog__close:hover{color:var(--ink)}
.node-dialog__sig{display:flex;align-items:center;gap:.5rem;margin-top:1.6rem;
  font-size:.6rem;letter-spacing:.2em;text-transform:uppercase;color:var(--faint)}
.node-dialog__sig i{width:5px;height:5px;border-radius:50%;background:var(--cyan);
  box-shadow:0 0 8px var(--cyan)}

/* ── boot ────────────────────────────────────────────────── */
.boot{
  position:fixed;inset:0;z-index:20;background:var(--bg);
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:1.2rem;
  transition:opacity .7s ease,visibility .7s;
}
.boot[data-done]{opacity:0;visibility:hidden}
.boot__mark{display:flex;gap:6px}
.boot__mark span{width:7px;height:7px;border-radius:50%;background:var(--cyan);opacity:.3;
  animation:blink 1.3s ease-in-out infinite}
.boot__mark span:nth-child(2){animation-delay:.16s}
.boot__mark span:nth-child(3){animation-delay:.32s}
@keyframes blink{0%,100%{opacity:.22;transform:scale(.85)}50%{opacity:1;transform:scale(1)}}
.boot p{font-family:var(--serif);font-size:1rem;letter-spacing:.16em;color:var(--dim)}
.boot__track{width:min(260px,60vw);height:1px;background:rgba(255,255,255,.12)}
.boot__track i{display:block;height:100%;width:0;background:var(--cyan);transition:width .3s}
.boot__value{font-size:.66rem;letter-spacing:.3em;color:var(--faint);font-variant-numeric:tabular-nums}


/* -- barra footer ----------------------------------------- */
.sitefoot{
  position:fixed;left:0;right:0;bottom:0;z-index:6;pointer-events:none;
  display:flex;align-items:center;justify-content:space-between;gap:.8rem 1.4rem;flex-wrap:wrap;
  padding:.75rem var(--pad) calc(.75rem + env(safe-area-inset-bottom,0px));
  font-size:.64rem;letter-spacing:.14em;text-transform:uppercase;color:var(--faint);
  background:linear-gradient(to top,rgba(3,5,9,.88),rgba(3,5,9,0));
}
.sitefoot > *{pointer-events:auto}
.sitefoot__links{display:flex;align-items:center;gap:.7rem;flex-wrap:wrap}
.sitefoot__links button,.sitefoot__links a{
  color:var(--faint);font-size:.64rem;letter-spacing:.14em;text-transform:uppercase;
  text-decoration:none;transition:color .25s;
}
.sitefoot__links button:hover,.sitefoot__links a:hover{color:var(--ink)}
.sitefoot__sep{opacity:.35;pointer-events:none}

/* -- pannelli legali -------------------------------------- */
.legal-dialog{
  margin:auto;                      /* vedi la nota su .node-dialog */
  border:1px solid var(--line);border-radius:16px;padding:0;
  width:min(46rem,92vw);max-height:min(84svh,880px);
  background:rgba(6,10,17,.97);backdrop-filter:blur(24px);color:var(--ink);overflow:hidden;
}
.legal-dialog[open]{display:flex;flex-direction:column}
.legal-dialog::backdrop{background:rgba(2,4,8,.78);backdrop-filter:blur(4px)}
.legal-dialog__head{
  display:flex;align-items:flex-start;justify-content:space-between;gap:1rem;
  padding:1.5rem 1.7rem 1.1rem;border-bottom:1px solid var(--line);flex:0 0 auto;
}
.legal-dialog__head .eyebrow{margin-bottom:.5rem}
.legal-dialog__head h3{font-family:var(--serif);font-size:1.3rem;font-weight:600;line-height:1.2}
.legal-dialog__close{font-size:1.5rem;line-height:1;color:var(--faint);padding:0 .2rem}
.legal-dialog__close:hover{color:var(--ink)}
.legal-dialog__body{padding:1.3rem 1.7rem 1.9rem;overflow:auto;flex:1 1 auto}
.legal-dialog__body h4{font-family:var(--serif);font-size:.95rem;font-weight:600;
  margin:1.5rem 0 .45rem;color:var(--ink)}
.legal-dialog__body h4:first-of-type{margin-top:0}
.legal-dialog__body p{font-size:.88rem;line-height:1.72;color:var(--dim)}
.legal-dialog__body a{color:var(--cyan)}
.legal-dialog__body strong{color:var(--ink);font-weight:500}
.legal-updated{font-size:.62rem;letter-spacing:.18em;text-transform:uppercase;
  color:var(--faint);margin-bottom:1.3rem}
.legal-co{margin-top:1.8rem;padding-top:1rem;border-top:1px solid var(--line);
  font-size:.72rem;letter-spacing:.06em;color:var(--faint)}

/* ── mobile ──────────────────────────────────────────────── */
@media (max-width:820px){
  /* la barra in alto e quella in basso sono fisse: il testo della fermata vive
     nello spazio fra le due, altrimenti la 05 finiva sotto il logo. */
  .station{max-width:100%;padding-right:var(--pad);
    justify-content:center;
    padding-top:calc(var(--pad) + 52px);
    padding-bottom:calc(var(--pad) + 44px)}

  .eyebrow{font-size:.6rem;letter-spacing:.2em;margin-bottom:.75rem}
  .narrator{font-size:.92rem;margin-bottom:.7rem}
  h1{font-size:clamp(1.85rem,8.4vw,2.7rem)}
  h2{font-size:clamp(1.45rem,6.6vw,2.2rem);margin-bottom:1rem}
  .lead{margin-top:1.1rem;font-size:1rem;line-height:1.55;max-width:none}
  .body-copy{font-size:.92rem;line-height:1.66;max-width:none}
  .cue{margin-top:1.8rem;font-size:.6rem;letter-spacing:.18em}
  .cue i{width:38px}
  .chips{margin-top:1.3rem;gap:.45rem}
  .chips button{padding:.45rem .9rem;font-size:.78rem}
  .telemetry{gap:1rem 1.6rem;margin-top:1.5rem}
  .telemetry dt{font-size:.6rem;letter-spacing:.18em;margin-bottom:.25rem}
  .telemetry dd{font-size:1.15rem}

  .contact-grid{grid-template-columns:1fr;gap:1.2rem}
  .station--contact .narrator{display:none}
  .station--contact h2{font-size:clamp(1.3rem,5.8vw,1.85rem);margin-bottom:.4rem}
  .form{gap:.6rem}
  .field input,.field textarea{padding:1.15rem .85rem .45rem;font-size:.9rem}
  .field label{top:.9rem;font-size:.9rem}
  .submit{margin-top:.2rem;padding:.75rem 1.3rem;font-size:.85rem}

  .rail{display:none}
  /* sul telefono il testo sta al centro dello schermo, dove il filmato e' piu'
     luminoso: la velatura sale piu' in alto, altrimenti le righe si perdono. */
  .shade{background:
    linear-gradient(to top, rgba(3,5,9,.95) 0%, rgba(3,5,9,.8) 46%, rgba(3,5,9,.5) 76%, rgba(3,5,9,.28) 100%);}
  .panel{width:calc(100vw - 2*var(--pad))}

  .sitefoot{justify-content:center;text-align:center;gap:.3rem;font-size:.58rem;
    padding:.55rem var(--pad) calc(.55rem + env(safe-area-inset-bottom,0px))}
  .sitefoot__links{justify-content:center;gap:.55rem}
  .sitefoot__links button,.sitefoot__links a{font-size:.58rem}
  .legal-dialog__head{padding:1.2rem 1.2rem .9rem}
  .legal-dialog__body{padding:1.1rem 1.2rem 1.5rem}
}