/* AION — experience. Token dal design system dell'app (web/design-tokens.md). */

@font-face{font-family:'Plex Sans Local';src:url(fonts/IBMPlexSans-Regular.ttf) format('truetype');font-weight:100 500;font-display:swap}
@font-face{font-family:'Plex Sans Local';src:url(fonts/IBMPlexSans-Bold.ttf) format('truetype');font-weight:600 800;font-display:swap}
@font-face{font-family:'Plex Mono Local';src:url(fonts/IBMPlexMono-Regular.ttf) format('truetype');font-weight:100 700;font-display:swap}

:root{
  --void:#09090B;
  --bg:#0E0E11;
  --card:#141519;
  --ink:#F4F4F6;
  --text:#C9CAD1;
  --muted:#8B8C95;
  --meta:#5E5F68;
  --line:#1C1D22;
  --line2:#2A2B31;
  --cu:#DE8F4A;
  --cu-hi:#F7D0A4;
  --cu-lo:#96602C;
  --cu-deep:#6B4522;
  --cyan:#00D4FF;
  --slate:#56697F;
  --sans:'IBM Plex Sans','Plex Sans Local',system-ui,-apple-system,sans-serif;
  --mono:'IBM Plex Mono','Plex Mono Local',ui-monospace,'SF Mono',Menlo,monospace;
  --gut:clamp(20px,5vw,80px);
  --ease:cubic-bezier(.16,1,.3,1);
  /* unità d'altezza: su iOS 1vh = viewport grande; dentro i pin (100svh) serve la piccola */
  --vh:1vh;
  color-scheme:dark;
}
@supports (height:1svh){:root{--vh:1svh}}

*{box-sizing:border-box}
html{background:var(--void);scroll-behavior:auto;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--void);color:var(--ink);font-family:var(--sans);font-weight:300;
  -webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;overflow-x:hidden}
::selection{background:var(--cu);color:#09090B}
a{color:inherit}
p{margin:0}
sub,sup{font-size:.6em}
.cu{color:var(--cu)}
.cuo{color:var(--cu-hi)}
.ink{color:var(--ink)}
.dim{color:var(--muted)}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}
:focus-visible{outline:1px solid var(--cu);outline-offset:4px}

.col{max-width:1320px;margin:0 auto;padding:0 var(--gut)}

/* ---------- type ---------- */
.kicker{font-family:var(--mono);font-size:11px;font-weight:400;letter-spacing:.16em;text-transform:uppercase;color:var(--cu);margin:0 0 26px}
.h2{font-weight:300;font-size:clamp(34px,4.7vw,74px);line-height:1.03;letter-spacing:-.035em;margin:0;color:var(--ink)}
.h3{font-weight:400;font-size:19px;line-height:1.3;letter-spacing:-.01em;margin:0 0 10px;color:var(--ink)}
.lead{font-size:clamp(16px,1.3vw,19px);line-height:1.62;color:var(--text);max-width:44ch;margin-top:26px}
.small{font-size:14px;line-height:1.68;color:var(--muted)}
.small b{font-weight:400}
.src{font-family:var(--mono);font-size:10.5px;color:var(--meta);line-height:1.75;letter-spacing:.02em;max-width:100ch;margin-top:26px}
.cap{font-family:var(--mono);font-size:11px;letter-spacing:.2em;text-transform:uppercase;color:var(--text)}
.cap.dim{color:var(--meta);letter-spacing:.14em;margin-top:10px}
.idx{font-family:var(--mono);font-size:11px;letter-spacing:.12em;color:var(--cu);margin-bottom:18px;text-transform:uppercase}

/* line-mask reveal */
.split .ln{display:block;overflow:hidden;padding-bottom:.08em;margin-bottom:-.08em}
.split .ln>span{display:block;transform:translateY(108%);transition:transform 1.25s var(--ease)}
.split .ln:nth-child(2)>span{transition-delay:.09s}
.split .ln:nth-child(3)>span{transition-delay:.18s}
.split.in .ln>span{transform:none}

.js [data-reveal]:not(.split){opacity:0;transform:translateY(22px);transition:opacity 1.1s ease var(--d,0s),transform 1.3s var(--ease) var(--d,0s)}
.js [data-reveal].in:not(.split){opacity:1;transform:none}

/* ---------- loader ---------- */
#loader{position:fixed;inset:0;z-index:50;background:var(--void);display:none;flex-direction:column;align-items:center;justify-content:center;gap:26px;transition:opacity 1s ease .1s,visibility 0s linear 1.2s}
.js #loader{display:flex}
#loader.gone{opacity:0;visibility:hidden}
.ld-mark{width:92px;fill:var(--cyan);opacity:.9}
.ld-line{width:min(260px,56vw);height:1px;background:var(--line2);position:relative;overflow:hidden}
.ld-line i{position:absolute;inset:0;background:var(--ink);transform-origin:left;transform:scaleX(0)}
.ld-cap{width:min(260px,56vw);display:flex;justify-content:space-between;font-family:var(--mono);font-size:10px;letter-spacing:.18em;color:var(--meta);text-transform:uppercase}

/* ---------- nav ---------- */
.nav{position:fixed;top:0;left:0;right:0;z-index:30;background:linear-gradient(rgba(9,9,11,.92),rgba(9,9,11,.6) 60%,rgba(9,9,11,0));display:flex;align-items:center;justify-content:space-between;padding:24px var(--gut);pointer-events:none}
.nav>*{pointer-events:auto}
.nav-mark{display:block;padding:14px 0;margin:-14px 0}
.nav-mark svg{height:13px;width:auto;display:block;fill:var(--cyan)}
.nav-r{margin-left:auto;display:flex;align-items:center;gap:16px;font-family:var(--mono);font-size:10.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}
.nav-sep{width:28px;height:1px;background:var(--line2)}
#nav-n{color:var(--meta);font-variant-numeric:tabular-nums}
.lang{flex:none;display:flex;align-items:center;gap:1px;margin-left:20px;padding-left:14px;border-left:1px solid var(--line2);font-family:var(--mono);font-size:10.5px;letter-spacing:.14em;color:var(--meta)}
.lang a{color:var(--muted);text-decoration:none;padding:12px 5px;margin:-12px 0;transition:color .3s}
.lang a[aria-current]{color:var(--ink);pointer-events:none;cursor:default}
.lang a:hover{color:var(--cu-hi)}
.lang a:focus-visible{outline-offset:-9px}
.nav-prog{position:absolute;left:0;right:0;top:0;height:1px;background:transparent}
.nav-prog i{position:absolute;inset:0;background:var(--cu);transform-origin:left;transform:scaleX(0)}

.keys{position:fixed;right:var(--gut);bottom:22px;z-index:30;background:rgba(9,9,11,.85);padding:6px 10px;border-radius:4px;font-family:var(--mono);font-size:10px;letter-spacing:.1em;color:var(--meta);text-transform:uppercase;transition:opacity .8s;display:flex;gap:8px;align-items:center}
.keys kbd{font-family:var(--mono);font-size:10px;border:1px solid var(--line2);border-radius:3px;padding:2px 6px;color:var(--muted);margin-left:8px}
.keys.hide{opacity:0}

/* ---------- scenes ---------- */
.scene{position:relative;height:var(--h)}
.pin{position:sticky;top:0;height:100vh;height:100svh;overflow:hidden}
.pin>canvas{position:absolute;inset:0;width:100%;height:100%;display:block}
.pin-center{display:flex;align-items:center}
.js .step{opacity:0}
.step{will-change:opacity,transform}
.step:focus-within{opacity:1!important;pointer-events:auto!important}
.ov{position:absolute;z-index:3}
.ov-tl{left:var(--gut);top:calc(17 * var(--vh));max-width:min(580px,40vw)}
.pin .h2{font-size:clamp(34px,4.1vw,64px)}
.hero-sub .lead.c{margin:0 auto;max-width:70ch;text-align:center;line-height:1.7}
/* nucleo, tappa "un centro": mentre c'è il testo il velo a sinistra si rinforza (il disco attraversa tutto lo schermo) */
@media (max-width:900px){
#core .scrim::before{content:'';position:absolute;inset:0;background:linear-gradient(100deg,rgba(9,9,11,.9) 0%,rgba(9,9,11,.8) 36%,rgba(9,9,11,0) 56%);opacity:0;transition:opacity .8s}
#core.mid-on .scrim::before{opacity:1}
}
/* desktop: stesso velo, ma stretto (si spegne al 46% della larghezza), così il disco resta pieno a destra */
@media (min-width:901px){
#core .scrim::before{content:'';position:absolute;inset:0;background:linear-gradient(100deg,rgba(9,9,11,.9) 0%,rgba(9,9,11,.78) 32%,rgba(9,9,11,0) 46%);opacity:0;transition:opacity .8s}
#core.mid-on .scrim::before,#core.stmt-on .scrim::before{opacity:1}
}
/* testo sopra le particelle del nucleo: un alone scuro attorno ai glifi, invisibile sul fondo pieno */
#core .ov .lead,#core .eqline{text-shadow:0 0 3px var(--void),0 0 10px var(--void),0 0 18px rgba(9,9,11,.8)}
.scrim{position:absolute;inset:0;z-index:2;pointer-events:none;background:linear-gradient(100deg,rgba(9,9,11,.92) 0%,rgba(9,9,11,.6) 30%,rgba(9,9,11,0) 58%)}

.scroll-hint{position:absolute;left:50%;bottom:44px;transform:translateX(-50%);display:flex;flex-direction:column;align-items:center;gap:12px;font-family:var(--mono);font-size:10px;letter-spacing:.24em;text-transform:uppercase;color:var(--meta);z-index:3}
.scroll-hint i{width:1px;height:46px;background:linear-gradient(var(--line2),var(--line2)) no-repeat;position:relative;overflow:hidden}
.scroll-hint i::after{content:'';position:absolute;left:0;top:0;width:1px;height:16px;background:var(--cu);animation:drip 2.2s cubic-bezier(.6,0,.3,1) infinite}
@keyframes drip{0%{transform:translateY(-16px)}100%{transform:translateY(46px)}}

/* hero */
.hero-sub{position:absolute;left:0;right:0;padding:0 var(--gut);text-align:center;z-index:3}
.readout{position:absolute;left:0;right:0;bottom:24px;display:flex;justify-content:center;gap:34px;flex-wrap:wrap;padding:0 24px;font-family:var(--mono);font-size:10.5px;letter-spacing:.06em;color:var(--meta);font-variant-numeric:tabular-nums;z-index:3}
.readout b{color:var(--text);font-weight:400}
.readout .t b{color:var(--cu)}

/* chapter dividers */
.chapter{min-height:92vh;display:flex;align-items:center;position:relative}
.chapter .col{width:100%;position:relative}
.ch-n{display:block;font-family:var(--sans);font-weight:200;font-size:clamp(160px,30vw,460px);line-height:.8;letter-spacing:-.06em;color:transparent;-webkit-text-stroke:1px var(--line2)}
.ch-t{font-weight:300;font-size:clamp(30px,3.6vw,56px);letter-spacing:-.03em;margin:-.9em 0 0 .08em;position:relative}
.chapter::after{content:'';position:absolute;left:var(--gut);right:var(--gut);bottom:0;height:1px;background:var(--line)}

/* sections */
.sec{padding:22vh 0 16vh;position:relative}
.sec-tight{padding:10vh 0 14vh}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:clamp(30px,6vw,110px)}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(24px,4vw,64px);margin-top:70px}
.grid3.rows .cell{border-top:1px solid var(--line);padding-top:26px}
.num{font-family:var(--sans);font-weight:200;font-size:clamp(40px,4vw,64px);letter-spacing:-.04em;line-height:1;margin-bottom:18px;font-variant-numeric:tabular-nums}
.num sup{font-size:.45em;color:var(--cu);vertical-align:.9em;margin-left:2px}
.lbl{font-family:var(--mono);font-size:10.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--text);margin-bottom:12px}

.axis-wrap{margin-top:70px;width:100%}
.axis-wrap svg{width:100%;height:auto;display:block;overflow:visible}
.ax-t{font-family:var(--mono);font-size:11px;fill:var(--meta);letter-spacing:.04em}
.ax-l{stroke:var(--line2);stroke-width:1}
.ax-g{stroke:var(--line);stroke-width:1}
.seg{stroke:var(--ink);stroke-width:1.5;fill:none}
.seg.muted{stroke:var(--muted)}
.seg.cu{stroke:var(--cu);stroke-width:3}
.seg.fade{stroke-dasharray:2 5}
.seg-n{font-family:var(--sans);font-size:15px;fill:var(--ink);font-weight:400}
.seg-s{font-family:var(--mono);font-size:11px;fill:var(--muted);letter-spacing:.03em}
.seg-v{font-family:var(--mono);font-size:12px;fill:var(--text)}
.seg-cu{fill:var(--cu-hi)}
.dot{fill:var(--ink)}
.dot.cu{fill:var(--cu)}
.thr{stroke:var(--cu);stroke-width:1;stroke-dasharray:3 5;opacity:.6}
.gap{fill:rgba(222,143,74,.05);stroke:var(--cu);stroke-dasharray:3 5;stroke-width:1;opacity:.8}
.gap-t{font-family:var(--mono);font-size:11px;fill:var(--cu);letter-spacing:.14em;text-transform:uppercase}
.lane-t{font-family:var(--mono);font-size:10.5px;fill:var(--muted);letter-spacing:.14em;text-transform:uppercase}

/* svg anim */
.draw{stroke-dasharray:1;stroke-dashoffset:1;transition:stroke-dashoffset 1.8s cubic-bezier(.6,0,.2,1) var(--d,0s)}
.in .draw,.draw.in{stroke-dashoffset:0}
.pop{opacity:0;transition:opacity 1s ease var(--d,0s)}
.in .pop{opacity:1}
.ring{fill:none;stroke:var(--cu);stroke-width:1;transform-box:fill-box;transform-origin:center;opacity:0}
.in .ring{animation:ring 2.6s ease-out var(--d,0s) infinite}
@keyframes ring{0%{opacity:.8;transform:scale(1)}100%{opacity:0;transform:scale(5)}}

/* statement scrub */
.scrub{font-weight:300;font-size:clamp(28px,3.7vw,58px);line-height:1.18;letter-spacing:-.03em;max-width:1240px}
.scrub .w{color:var(--ink);opacity:.14;transition:opacity .35s linear}
.scrub .w.on{opacity:1}
.scrub .w.hl.on{color:var(--cu-hi)}

/* formula overlay */
.formula{position:absolute;right:var(--gut);bottom:calc(9 * var(--vh));text-align:right;z-index:3}
.f-eq{font-family:var(--mono);font-size:clamp(15px,1.4vw,20px);color:var(--text);letter-spacing:.02em}
.f-eq em{font-style:normal;color:var(--cu)}
.f-cap{font-family:var(--mono);font-size:10px;letter-spacing:.14em;text-transform:uppercase;color:var(--meta);margin-top:10px}
.eqline{font-family:var(--mono);font-size:12px;color:var(--meta);margin-top:28px;letter-spacing:.02em}

/* speed */
.speed{margin-top:80px}
.stat .big{font-family:var(--sans);font-weight:200;font-size:clamp(90px,10vw,170px);line-height:.9;letter-spacing:-.05em;margin:34px 0 22px;font-variant-numeric:tabular-nums}
.stat .small{max-width:40ch}
.dots{display:grid;grid-template-columns:repeat(20,1fr);gap:6px;max-width:420px}
.dots i{aspect-ratio:1;border-radius:50%;border:1px solid var(--line2);transform:scale(.3);opacity:0;transition:transform .6s var(--ease),opacity .6s,background .6s,border-color .6s}
.in .dots i{transform:none;opacity:1}
.dots i.a{background:var(--cu);border-color:var(--cu)}
.dots i.b{border-color:var(--cu-hi)}
.dte{max-width:560px;position:relative}
.dte svg{width:100%;height:auto;display:block;overflow:visible}
.dte .g{stroke:var(--line);stroke-width:1}
.dte .gl{font-family:var(--mono);font-size:10px;fill:var(--meta)}
.dte .yl{font-family:var(--mono);font-size:10px;fill:var(--meta)}
.dte .line{fill:none;stroke:var(--cu);stroke-width:1.8;stroke-linejoin:round;stroke-linecap:round}
.dte .area{fill:rgba(222,143,74,.07)}
.dte .pt{fill:var(--void);stroke:var(--text);stroke-width:1.2;opacity:0;transition:opacity .4s}
.dte .pt.on{opacity:1}
.dte .head{fill:var(--cu-hi)}
.dte .v{font-family:var(--mono);font-size:11px;fill:var(--text);opacity:0;transition:opacity .5s}
.dte .v.on{opacity:1}
.dte .v.hi{fill:var(--cu-hi)}
.dte .note{font-family:var(--mono);font-size:9.5px;fill:var(--meta);letter-spacing:.04em}
.dte .mk{stroke:var(--meta);stroke-width:1;stroke-dasharray:2 3}
.vizbox{height:clamp(170px,17vw,236px);display:flex;align-items:flex-end}
.vizbox>*{width:100%}
@media (min-width:901px){.grid2.speed .stat:first-child .vizbox{padding-bottom:32px}}
.dte .cap{font-family:var(--mono);font-size:10px;fill:var(--meta);letter-spacing:.06em}
.statement{font-weight:300;font-size:clamp(24px,2.6vw,40px);line-height:1.25;letter-spacing:-.025em;max-width:30ch;margin-top:120px}
.big-st{font-size:clamp(40px,5.6vw,92px);line-height:1.02;letter-spacing:-.04em;max-width:none;margin-top:130px}

/* nucleo, frase finale ("una suite"): più larga del testo standard, il disco resta a destra (app.js) */
.ov-stmt{max-width:min(700px,46vw)}

/* le aree (#views): lista compatta di dieci voci, solo l'area attiva mostra la sua riga */
.ov-views{top:calc(14 * var(--vh));max-width:min(430px,88vw)}
.ov-views .h2{font-size:clamp(30px,3.2vw,50px);margin-bottom:28px}
.vlist{list-style:none;margin:0;padding:0;border-bottom:1px solid var(--line)}
.vlist li{display:grid;grid-template-columns:36px 1fr;gap:8px;padding:9px 0 8px;border-top:1px solid var(--line);cursor:default;-webkit-tap-highlight-color:transparent}
@media (hover:hover){.vlist li,.vlist .a-i{cursor:pointer}.vlist li:not(.on):hover h3{color:var(--text)}}
.a-i{font-family:var(--mono);font-size:10.5px;color:var(--meta);padding-top:4px;letter-spacing:.08em;transition:color .4s}
.vlist h3{font-weight:300;font-size:clamp(16px,1.3vw,19px);line-height:1.25;letter-spacing:-.01em;margin:0;color:var(--muted);transition:color .4s}
.vlist p{font-size:13px;line-height:1.55;color:var(--muted);max-width:46ch;overflow:hidden;opacity:0;max-height:0;margin-top:0;transition:max-height .7s var(--ease),opacity .5s,margin .6s var(--ease)}
.vlist li.on h3{color:var(--ink)}
.vlist li.on .a-i{color:var(--cu)}
.vlist li.on p{opacity:1;margin-top:5px;max-height:6em}
@media (min-width:901px) and (max-height:820px){
  .ov-views{top:calc(12 * var(--vh))}
  .ov-views .h2{margin-bottom:18px}
  .vlist li{padding:6px 0 5px}
  .vlist h3{font-size:16px}
}
/* schermi stretti o bassi: indice orizzontale 01–10, sotto il titolo e la riga dell'area attiva
   (tutte le descrizioni nella stessa cella: l'altezza non cambia, il grafico sotto resta fermo) */
@media screen and (max-width:900px),screen and (max-height:600px){
  .js .ov-views{width:min(430px,88vw)}
  .js .vlist{display:grid;grid-template-columns:repeat(var(--vn,10),minmax(0,1fr));border-bottom:0}
  .js .vlist li{display:contents}
  .js .vlist .a-i{grid-row:1;padding:15px 0 14px;text-align:center;border-top:1px solid var(--line);border-bottom:1px solid var(--line);cursor:pointer;transition:color .4s,box-shadow .4s}
  .js .vlist li.on .a-i{color:var(--cu);box-shadow:inset 0 -1px 0 var(--cu)}
  .js .vlist li>div{grid-row:2;grid-column:1/-1;padding-top:12px;opacity:0;visibility:hidden;transition:opacity .35s,visibility 0s linear .35s}
  .js .vlist li.on>div{opacity:1;visibility:visible;transition:opacity .35s}
  .js .vlist h3{font-size:18px;color:var(--ink)}
  .js .vlist p,.js .vlist li.on p{max-height:none;opacity:1;margin-top:4px;max-width:none;transition:none}
}
.sim-note{position:absolute;right:var(--gut);bottom:26px;font-family:var(--mono);font-size:10px;letter-spacing:.12em;text-transform:uppercase;color:var(--meta);z-index:3}

/* garch */
.grid-garch .h2{font-size:clamp(34px,3.5vw,58px)}
.grid-garch{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:clamp(30px,5vw,90px);align-items:start}
.garch-eq{font-family:var(--mono);font-size:clamp(17px,1.6vw,23px);color:var(--ink);margin-top:44px;padding:22px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.garch-eq em{font-style:normal;color:var(--cu)}
.ctrls{margin-top:30px;display:grid;gap:22px}
.ctrls label{display:grid;grid-template-columns:1fr auto;align-items:baseline;row-gap:10px;font-family:var(--mono);font-size:13px;color:var(--ink)}
.ctrls label small{font-size:10px;letter-spacing:.12em;text-transform:uppercase;color:var(--meta);margin-left:10px}
.ctrls output{font-variant-numeric:tabular-nums;color:var(--cu)}
.ctrls input{grid-column:1/-1}
input[type=range]{-webkit-appearance:none;appearance:none;width:100%;height:20px;background:transparent;margin:0;cursor:pointer}
input[type=range]:focus{outline:none}
input[type=range]::-webkit-slider-runnable-track{height:1px;background:var(--line2)}
input[type=range]::-moz-range-track{height:1px;background:var(--line2)}
input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:15px;height:15px;border-radius:50%;background:var(--void);border:1px solid var(--cu);margin-top:-7px;transition:transform .2s}
input[type=range]::-moz-range-thumb{width:13px;height:13px;border-radius:50%;background:var(--void);border:1px solid var(--cu)}
input[type=range]:hover::-webkit-slider-thumb{transform:scale(1.25)}
input[type=range]:focus-visible::-webkit-slider-thumb{box-shadow:0 0 0 2px var(--void),0 0 0 4px var(--cu)}
.garch-ro{margin-top:30px;display:grid;grid-template-columns:1fr 1fr;gap:18px 24px}
.garch-ro div{border-top:1px solid var(--line);padding-top:12px}
.garch-ro b{display:block;font-family:var(--mono);font-weight:400;font-size:20px;color:var(--ink);font-variant-numeric:tabular-nums}
.garch-ro span{font-family:var(--mono);font-size:10px;letter-spacing:.12em;text-transform:uppercase;color:var(--meta)}
.btn{margin-top:30px;background:none;border:1px solid var(--line2);color:var(--text);font-family:var(--mono);font-size:11px;letter-spacing:.12em;text-transform:uppercase;padding:11px 18px;border-radius:6px;cursor:pointer;transition:border-color .3s,color .3s}
.btn:hover{border-color:var(--cu);color:var(--ink)}
.btn:focus-visible{outline:2px solid var(--cu);outline-offset:2px}
.garch-plot{position:relative;padding-top:10px}
.garch-plot canvas{width:100%;height:clamp(340px,52vh,520px);display:block}
.g-leg{display:flex;gap:24px;flex-wrap:wrap;margin-top:14px;font-family:var(--mono);font-size:10px;letter-spacing:.08em;color:var(--meta)}
.g-leg i{display:inline-block;width:14px;height:1px;vertical-align:middle;margin-right:8px}
.lg-r{background:var(--muted)}.lg-s{background:var(--cu)}.lg-x{background:var(--cu-hi);height:5px!important;width:5px!important;border-radius:50%}

/* cycle */
.cycle{margin-top:10px}
.cyc-svg{width:100%;height:auto;display:block;overflow:visible}
.cyc-svg path{stroke:var(--line2);stroke-width:1}
.cyc-dot{fill:var(--cu-hi)}
.cyc-n{fill:var(--void);stroke:var(--ink);stroke-width:1}
.cyc-n.cu{stroke:var(--cu);fill:var(--cu)}
.cyc-cols{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(24px,4vw,64px);margin-top:14px}
.cyc-cols>div{padding-right:10px}
.cyc-cols>div:nth-child(2){text-align:center}
.cyc-cols>div:nth-child(2) .small{margin:0 auto;max-width:36ch}
.cyc-cols>div:nth-child(3){text-align:right}
.cyc-cols>div:nth-child(3) .small{margin-left:auto;max-width:36ch}

/* simboli greci: niente maiuscolo (α+β → Α+Β, π → Π) sotto text-transform:uppercase */
.nc{text-transform:none;font-style:normal}

/* fifty */
.grid-fifty{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:clamp(30px,6vw,110px);align-items:end}
.giant{font-weight:200;font-size:clamp(170px,22vw,340px);line-height:.78;letter-spacing:-.07em;font-variant-numeric:tabular-nums;margin-left:-.05em}
.giant .plus{color:var(--cu);font-size:.5em;vertical-align:.8em;margin-left:.04em}
.cells{display:grid;grid-template-columns:repeat(13,1fr);gap:9px;margin-bottom:50px;max-width:430px}
.cells i{aspect-ratio:1;border:1px solid var(--line2);border-radius:2px;transition:background .5s,border-color .5s}
.cells i.on{background:rgba(222,143,74,.16);border-color:rgba(222,143,74,.7)}
.cells i.on2{background:var(--cu);border-color:var(--cu)}
.facts{display:grid;grid-template-columns:1fr 1fr;gap:26px 34px}
.facts>div{border-top:1px solid var(--line);padding-top:16px}
.facts b{display:block;font-weight:200;font-size:38px;letter-spacing:-.03em;margin-bottom:8px;font-variant-numeric:tabular-nums}
.facts span{font-size:13.5px;line-height:1.6;color:var(--muted)}

/* plans */
.plans{display:grid;grid-template-columns:repeat(4,1fr);margin-top:70px;border-top:1px solid var(--line)}
.plan{padding:30px 26px 34px 0;border-right:1px solid var(--line);position:relative;transition:background .4s}
.plan+.plan{padding-left:26px}
.plan:last-child{border-right:0}
.plan::before{content:'';position:absolute;left:0;right:0;top:-1px;height:1px;background:var(--cu);transform:scaleX(0);transform-origin:left;transition:transform .7s var(--ease)}
.plan:hover::before,.plan.hi::before{transform:none}
.p-n{font-family:var(--mono);font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--text)}
.plan.hi .p-n{color:var(--cu)}
.p-v{font-weight:200;font-size:clamp(52px,5vw,84px);letter-spacing:-.05em;line-height:1;margin:34px 0 30px;font-variant-numeric:tabular-nums}
.p-v .cur{font-size:.42em;vertical-align:.95em;color:var(--muted);margin-right:4px;letter-spacing:0}
.p-v small{font-family:var(--mono);font-size:11px;letter-spacing:.08em;color:var(--meta);margin-left:8px}
.p-c{font-size:15px;line-height:1.5;color:var(--ink);min-height:3em}
.p-w{font-size:13px;line-height:1.5;color:var(--muted);margin-top:14px}

/* close */
.cl-cv{z-index:1}
.cl-front{z-index:3;pointer-events:none}
/* il marchio sta al centro della fascia libera fra titolo e contatti, e si dimensiona anche in altezza */
#close{--hfs:clamp(28px,3.2vw,50px);--gt:calc(11 * var(--vh) + 2.15 * var(--hfs));--gb:calc(91 * var(--vh) - 116px);--gap:calc(var(--gb) - var(--gt));--mid:calc((var(--gt) + var(--gb)) / 2)}
.horizon{position:absolute;left:0;right:0;top:var(--mid);height:1px;background:var(--ink);transform:scaleX(0);transform-origin:center;z-index:2}
.eq{position:absolute;left:50%;top:var(--mid);width:max(180px,min(54vw,600px,calc(var(--gap) * 1.45)));height:auto;transform:translate(-50%,-51.45%);overflow:visible;z-index:2;shape-rendering:geometricPrecision}
.eq-fill{fill:var(--ink);opacity:0}
.eq path.st{fill:none;stroke:var(--ink);stroke-dasharray:1;stroke-dashoffset:1}
.close-top{position:absolute;left:0;right:0;top:calc(11 * var(--vh));padding:0 var(--gut);text-align:center;z-index:4}
.close-top .h2{font-size:var(--hfs)}
.close-bot{position:absolute;left:0;right:0;bottom:calc(9 * var(--vh));text-align:center;z-index:4;display:flex;flex-direction:column;align-items:center;gap:18px}
.close-aion{height:26px;width:auto;fill:var(--cyan);shape-rendering:geometricPrecision}
.powered{display:flex;align-items:center;gap:14px;font-family:var(--mono);font-size:10px;letter-spacing:.2em;text-transform:uppercase;color:var(--meta)}
.eq-word{height:11.7px;width:auto;fill:var(--text);overflow:visible}
.contact{font-family:var(--mono);font-size:12px;letter-spacing:.06em;color:var(--muted);display:flex;gap:12px;flex-wrap:wrap;justify-content:center}
.contact a{color:var(--ink);text-decoration:none;border-bottom:1px solid var(--cu);padding:12px 0 3px;margin-top:-12px}
.contact a:hover{color:var(--cu-hi)}

/* no-webgl fallback (anche dopo la perdita del contesto) */
.nogl #core-cv{display:none}
.nogl .pin{background:radial-gradient(ellipse 34% 5% at 70% 58%,rgba(222,143,74,.10),rgba(222,143,74,0) 70%),radial-gradient(circle at 70% 56%,rgba(9,9,11,0) 0,rgba(9,9,11,0) 11vmin,rgba(247,208,164,.22) 11.3vmin,rgba(222,143,74,.06) 13vmin,rgba(9,9,11,0) 20vmin)}

/* footer */
.foot{position:relative;z-index:1;background:var(--void);border-top:1px solid var(--line);padding:32px 0 40px;font-family:var(--mono);font-size:10.5px;line-height:1.7;letter-spacing:.06em;color:var(--muted)}
.foot-in{display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px 24px}
.foot a{color:var(--text);text-decoration:none;border-bottom:1px solid var(--line2)}
.foot a:hover{color:var(--ink);border-color:var(--cu)}
.foot-n{flex-basis:100%;max-width:92ch;color:#7A7B84}

/* ---------- responsive ---------- */
@media (max-width:900px){
  .grid2,.grid3,.grid-garch,.grid-fifty{grid-template-columns:1fr}
  .plans{grid-template-columns:1fr 1fr}
  .plan:nth-child(2){border-right:0}
  .plan:nth-child(3){padding-left:0}
  .cyc-cols{grid-template-columns:1fr}
  .cyc-cols>div,.cyc-cols>div:nth-child(2),.cyc-cols>div:nth-child(3){text-align:left}
  .cyc-cols .small{margin:0!important}
  .keys{display:none}
  .ov-tl{top:calc(12 * var(--vh));max-width:88vw}
  .scrim{background:linear-gradient(180deg,rgba(9,9,11,.94) 0%,rgba(9,9,11,.7) 45%,rgba(9,9,11,.2) 100%)}
  .formula{left:var(--gut);text-align:left}
  .facts{grid-template-columns:1fr}
  .readout{gap:6px 14px;font-size:9.5px}
  .vizbox{height:auto}
}
@media (prefers-reduced-motion:reduce){
  .split .ln>span,[data-reveal]:not(.split){transition:none}
  .scroll-hint i::after{animation:none}
  .draw,.pop,.dots i,.cells i,.dte .pt,.dte .v,.vlist p,.vlist li>div,.vlist .a-i{transition:none}
  .in .ring{animation:none}
}
@media (max-width:600px){
  .dte .gl,.dte .yl{font-size:16px}
  .dte .v{font-size:18px}
  .dte .note{display:none}
  .close-bot{padding:0 var(--gut)}
  .contact{flex-direction:column;gap:8px}
  .contact>span{display:none}
  .eq{width:max(180px,min(82vw,calc(var(--gap) * 1.45)))}
}
@media (max-width:600px){
  .nav-r{min-width:0;padding-left:14px}
  #nav-ch{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;min-width:0}
  #nav-n,.nav-sep{flex:none}
  .nav-r{gap:10px;font-size:9.5px;letter-spacing:.08em}
  .nav-sep{width:14px}
}
@media (max-width:380px){.nav-r{gap:8px;letter-spacing:.04em}.nav-sep{width:10px}}
@media (max-width:600px){
  /* il contatore delle tappe serve alla presentazione da tastiera: sul telefono lascia spazio al capitolo e alla lingua */
  #nav-n,.nav-sep{display:none}
  .lang{margin-left:10px;padding-left:10px;font-size:9.5px;letter-spacing:.08em}
  .foot-in{flex-direction:column}
}
@media (max-width:480px){
  .plans{grid-template-columns:1fr}
  .plan,.plan+.plan,.plan:nth-child(3){padding:22px 0 24px;border-right:0}
  .plan+.plan{border-top:1px solid var(--line)}
  .p-v{margin:18px 0 16px}
}
@media (max-height:460px){.close-bot{gap:10px}}

/* ---------- produzione: telefono, tocco, landscape ---------- */
@media (max-width:900px){
  /* titoli su più righe: a capo bilanciati, niente parole orfane */
  .split .ln>span,.close-top .h2{text-wrap:balance}
  /* la nav copre il contenuto che scorre sotto */
  .nav{padding:16px var(--gut);background:linear-gradient(rgba(9,9,11,.97) 0,rgba(9,9,11,.9) 70%,rgba(9,9,11,0))}
  /* le aree: il grafico si mette sotto l'indice (app.js) */
  .ov-views .h2{margin-bottom:16px}
  .hero-sub .cap{text-wrap:balance}
  /* nucleo, frase finale: il velo si rinforza nella fascia del testo, il buco nero resta sotto */
  #core .scrim::after{content:'';position:absolute;inset:0;background:linear-gradient(180deg,rgba(9,9,11,.94) 0%,rgba(9,9,11,.86) 58%,rgba(9,9,11,.15) 82%,rgba(9,9,11,0) 100%);opacity:0;transition:opacity .8s}
  #core.stmt-on .scrim::after{opacity:1}
}
@media (max-width:900px) and (orientation:portrait){#core .scrim::before{display:none}}
@media (max-width:600px){
  .cycle .cyc-svg{display:none}
  .readout{font-size:10.5px}
  .readout,.src{color:var(--muted)}
}
@media (max-width:420px){
  .f-cap{letter-spacing:.06em}
  .hero-sub .cap{letter-spacing:.12em}
  .hero-sub .cap.dim{letter-spacing:.03em}
}
@media (max-width:380px){
  .nav-r{font-size:9px;letter-spacing:.02em}
  .lang{margin-left:6px;padding-left:6px}
  .lang a{padding:12px 3px}
}
/* tocco: niente scorciatoie da tastiera, cursori e pulsanti più grandi */
@media (hover:none),(pointer:coarse){.keys{display:none}}
@media (pointer:coarse){
  input[type=range]{height:44px}
  input[type=range]::-webkit-slider-thumb{width:26px;height:26px;margin-top:-12.5px}
  input[type=range]::-moz-range-thumb{width:24px;height:24px}
  .ctrls{gap:14px}
  .btn{padding:14px 20px}
}
input[type=range]:focus-visible::-moz-range-thumb{box-shadow:0 0 0 2px var(--void),0 0 0 4px var(--cu)}
/* telefono in orizzontale: testo compatto a sinistra, grafici a destra (app.js usa lo stesso criterio) */
@media (orientation:landscape) and (max-height:500px){
  .nav{padding:12px var(--gut)}
  .ov-tl,.ov-views{top:52px;max-width:calc(44vw - var(--gut) - 14px)}
  .js .ov-views{width:calc(44vw - var(--gut) - 14px)}
  .pin .h2,.ov-views .h2{font-size:24px}
  .pin .lead{font-size:13.5px;line-height:1.5;margin-top:12px}
  .pin .kicker{margin-bottom:10px}
  .ov-views .h2{margin-bottom:10px}
  .js .vlist .a-i{padding:11px 0 10px}
  .js .vlist li>div{padding-top:8px}
  .js .vlist h3{font-size:15px}
  .js .vlist p{font-size:12px;line-height:1.45}
  .eqline,.scroll-hint,.readout{display:none}
  .scrim{background:linear-gradient(100deg,rgba(9,9,11,.92) 0%,rgba(9,9,11,.6) 30%,rgba(9,9,11,0) 58%)}
  #core .scrim::after{content:'';display:block;position:absolute;inset:0;background:linear-gradient(90deg,rgba(9,9,11,.94) 0%,rgba(9,9,11,.85) 42%,rgba(9,9,11,0) 60%);opacity:0;transition:opacity .8s}
  #core.stmt-on .scrim::after{opacity:1}
  .formula{left:auto;right:var(--gut);text-align:right}
  .close-top{top:56px}
}

/* ---------- senza JavaScript (o se app.js non parte): pagina statica leggibile ---------- */
html:not(.js) .scene{height:auto}
html:not(.js) .pin{position:relative;height:auto;overflow:visible;padding:16vh 0 8vh}
html:not(.js) .pin>canvas,html:not(.js) .cl-cv,html:not(.js) .horizon,html:not(.js) .eq,html:not(.js) .scrim,
html:not(.js) .scroll-hint,html:not(.js) .readout,html:not(.js) .keys,html:not(.js) .nav-prog,html:not(.js) #nav-n,html:not(.js) .nav-sep{display:none}
html:not(.js) .ov,html:not(.js) .hero-sub,html:not(.js) .formula,html:not(.js) .close-top,html:not(.js) .close-bot,html:not(.js) .sim-note{position:relative;inset:auto;max-width:none;margin:0 var(--gut) 6vh;padding:0;text-align:left;align-items:flex-start}
html:not(.js) .hero-sub .lead.c{margin:0;text-align:left}
html:not(.js) .vlist p{max-height:none;opacity:1;margin-top:8px}
html:not(.js) .split .ln>span{transform:none}
html:not(.js) .step{opacity:1!important;transform:none!important}
html:not(.js) #hero .hero-sub:not(#hero-sub),html:not(.js) .vizbox,html:not(.js) .axis-wrap{display:none}

/* ---------- stampa / PDF ---------- */
@media print{
  html,body{background:var(--void)!important;-webkit-print-color-adjust:exact;print-color-adjust:exact}
  .nav,.keys,#loader,canvas,.cl-cv,.horizon,.eq,.scrim,.scroll-hint,.readout,.cyc-svg{display:none!important}
  .scene{height:auto!important}
  .pin{position:relative!important;height:auto!important;overflow:visible!important;padding:6vh 0 2vh}
  .ov,.hero-sub,.formula,.close-top,.close-bot,.sim-note{position:relative!important;inset:auto!important;top:auto!important;bottom:auto!important;max-width:none!important;margin:0 var(--gut) 5vh;padding:0;text-align:left;align-items:flex-start}
  .hero-sub .lead.c{margin:0;text-align:left}
  .step,[data-reveal]{opacity:1!important;transform:none!important}
  .split .ln>span{transform:none!important}
  .vlist p{max-height:none!important;opacity:1!important;margin-top:8px}
  .sec{padding:6vh 0}
  .chapter{min-height:0;padding:6vh 0}
  .ch-n{font-size:120px}
  .cell,.plan,.risk,.stat,.axis-wrap{break-inside:avoid}
  .draw,.dte .line{stroke-dashoffset:0!important}
  .pop,.dte .pt,.dte .v,.scrub .w,.dots i{opacity:1!important;transform:none!important}
}

.num .ccy{font-family:var(--mono);font-size:.3em;letter-spacing:.08em;color:var(--muted);vertical-align:.95em;margin-right:.35em;font-weight:400}
.p-v .cur{font-family:var(--mono);letter-spacing:.06em}

/* enfasi nel titolo ("normal") e didascalia tecnica dell'apertura */
.h2 em.em{font-style:italic;font-weight:300;color:var(--cu-hi);letter-spacing:-.02em}
.fig-cap{font-family:var(--mono);font-size:10.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--meta);text-align:center;margin:0 auto;padding:0 var(--gut)}
.fig-cap .js-hero-n{color:var(--muted)}

/* ================= AI · Aion Brain (#ai) e reinforcement learning (#ai-rl), animazioni in ai.js ================= */
.ai-ov .lead{max-width:40ch}
.ai-steps{list-style:none;margin:34px 0 0;padding:0;max-width:430px;border-bottom:1px solid var(--line)}
.ai-steps li{display:grid;grid-template-columns:40px 1fr;align-items:baseline;padding:11px 0 10px;border-top:1px solid var(--line);font-size:15px;line-height:1.4;color:var(--muted);transition:color .5s}
.ai-steps li span{font-family:var(--mono);font-size:10.5px;letter-spacing:.08em;color:var(--meta);transition:color .5s}
.ai-steps li.done{color:var(--text)}
.ai-steps li.on{color:var(--ink)}
.ai-steps li.on span{color:var(--cu)}
.ai-end .h2{font-size:clamp(34px,3.9vw,60px)}
.ai-end .src{margin-top:34px;max-width:46ch;color:var(--muted);font-size:11px}
/* il palco dell'animazione: a destra del testo (desktop), sotto il testo sui telefoni (top da ai.js) */
.ai-stage{position:absolute;z-index:3;left:max(48vw,calc(100vw - var(--gut) - 900px));right:var(--gut);top:calc(17 * var(--vh));bottom:calc(8 * var(--vh));display:flex;flex-direction:column;pointer-events:none;font-family:var(--sans)}
.ai-stage canvas{display:block;width:100%}
.ai-stage .ts{display:none}
.ai-stage.is-compact .tl{display:none}
.ai-stage.is-compact .ts{display:inline}
.br-tile figcaption,.rl-p header{flex:none;display:flex;justify-content:space-between;align-items:baseline;gap:10px;font-family:var(--mono);font-size:10px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);white-space:nowrap}
.br-tile figcaption .t,.rl-p header .t{overflow:hidden;text-overflow:ellipsis;min-width:0}
.br-tile figcaption .r,.rl-p header .r{flex:none;color:var(--text);font-variant-numeric:tabular-nums}
.br-tile figcaption .r b,.rl-p header .r b{font-weight:400;color:var(--cu-hi)}
@keyframes aiblink{0%,50%{opacity:1}50.01%,100%{opacity:0}}
@keyframes aipulse{0%,100%{opacity:1}50%{opacity:.25}}

/* Aion Brain */
.br-prompt{flex:none;border:1px solid var(--line2);border-radius:10px;padding:12px 16px 14px;background:var(--bg);transition:border-color .6s}
.br-prompt.typing{border-color:#3A3B42}
.br-ph{display:flex;justify-content:space-between;align-items:center;font-family:var(--mono);font-size:10px;letter-spacing:.16em;text-transform:uppercase;color:var(--cu);margin-bottom:8px}
.br-send{font-size:11px;letter-spacing:0;color:var(--meta);border:1px solid var(--line2);border-radius:4px;padding:0 7px;line-height:17px;transition:color .4s,border-color .4s}
.br-prompt.sent .br-send{color:var(--cu);border-color:rgba(222,143,74,.55)}
.br-q{font-size:clamp(15px,1.2vw,18px);line-height:1.45;color:var(--ink);font-weight:300;margin:0}
.br-ghost{visibility:hidden}
.br-caret{position:relative;display:inline-block;width:0;height:1.15em;vertical-align:-.22em}
.br-caret::after{content:'';position:absolute;left:1px;top:0;bottom:0;width:1.5px;background:var(--cu);animation:aiblink 1.05s infinite}
.br-prompt.sent .br-caret{display:none}
.br-map{flex:none;height:46px;margin:10px 0 4px}
.br-trace{flex:none;display:flex;align-items:center;gap:10px;font-family:var(--mono);font-size:10px;letter-spacing:.14em;text-transform:uppercase;color:var(--meta);padding:0 0 10px;white-space:nowrap;overflow:hidden;opacity:0}
.br-dot{flex:none;width:6px;height:6px;border-radius:50%;background:var(--cu);animation:aipulse 1.3s ease-in-out infinite}
.br-trace.done .br-dot{animation:none}
.br-tt{color:var(--text)}
.br-trace.done .br-tt{color:var(--cu)}
.br-ts{overflow:hidden;text-overflow:ellipsis;min-width:0}
.br-body{position:relative;flex:1;min-height:0;display:flex;flex-direction:column}
.br-rows{position:absolute;left:0;right:0;top:0;list-style:none;margin:0;padding:0;z-index:2}
.br-rows li{position:relative;display:grid;grid-template-columns:16px minmax(0,130px) minmax(0,1fr) auto;align-items:baseline;gap:4px 10px;padding:11px 0;border-top:1px solid var(--line);font-size:14px;line-height:1.35;color:var(--muted);opacity:0}
.br-rows li:last-child{border-bottom:1px solid var(--line)}
.br-rows .st{width:7px;height:7px;border-radius:50%;border:1px solid var(--meta);align-self:center;box-sizing:border-box}
.br-rows li.act .st{border-color:var(--cu);animation:aipulse .9s ease-in-out infinite}
.br-rows li.done .st{background:var(--cu);border-color:var(--cu)}
.br-rows b{font-weight:400;color:var(--ink)}
.br-rows span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.br-rows em{font-style:normal;font-family:var(--mono);font-size:10.5px;color:var(--meta);opacity:0;transition:opacity .4s}
.br-rows li.done em{opacity:1}
.br-rows .bar{position:absolute;left:0;right:0;bottom:-1px;height:1px;background:var(--cu);transform-origin:left;transform:scaleX(0);transition:opacity .6s}
.br-rows li.done .bar{opacity:.35}
.br-out{flex:1;min-height:0;display:flex;flex-direction:column}
.br-ans{flex:none;font-size:15px;line-height:1.6;color:var(--text);margin:0 0 14px;max-width:72ch}
.br-ans .w{opacity:0;transition:opacity .35s}
.br-ans .w.on{opacity:1}
.br-grid{flex:1;min-height:0;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);grid-template-rows:minmax(0,1fr) minmax(0,1fr);gap:10px}
.br-slot{border:1px dashed var(--line2);border-radius:8px;opacity:0}
.br-tile{position:relative;z-index:1;margin:0;min-height:0;min-width:0;display:flex;flex-direction:column;border:1px solid var(--line);border-radius:8px;padding:10px 12px 8px;background:var(--bg);opacity:0;visibility:hidden}
.br-tile canvas{flex:1;min-height:0;margin-top:8px}
.br-foot{flex:none;display:flex;justify-content:space-between;gap:6px 20px;flex-wrap:wrap;margin-top:12px;font-family:var(--mono);font-size:10.5px;letter-spacing:.04em;color:var(--muted);opacity:0}
.br-foot .ok i{display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--cu);margin-right:8px;vertical-align:1px}
.br-foot .nx{color:var(--text)}
.br-stage.is-compact .br-prompt{padding:9px 12px 10px;border-radius:8px}
.br-stage.is-compact .br-ph{margin-bottom:4px}
.br-stage.is-compact .br-q{font-size:14.5px;line-height:1.4}
.br-stage.is-compact .br-map{height:42px;margin:6px 0 2px}
.br-stage.is-compact .br-trace{padding-bottom:6px}
.br-stage.is-compact .br-rows li{grid-template-columns:14px minmax(0,1fr) auto;padding:8px 0;font-size:13.5px}
.br-stage.is-compact .br-rows span{grid-column:2/-1;grid-row:2;font-size:12.5px}
.br-stage.is-compact .br-ans{font-size:13.5px;line-height:1.5;margin-bottom:10px}
.br-stage.is-compact .br-grid{gap:8px}
.br-stage.is-compact .br-tile{padding:7px 9px 6px;border-radius:6px}
.br-stage.is-compact .br-tile canvas{margin-top:5px}
.br-stage.is-compact .br-foot{margin-top:8px}
.br-stage.is-short .br-foot .nx{display:none}
.br-stage.tiles-short .br-tile .tl{display:none}
.br-stage.tiles-short .br-tile .ts{display:inline}
.br-stage.q-off .br-prompt,.br-stage.q-off .br-map,.br-stage.q-off .br-trace{display:none}
.br-stage.is-narrow .br-tile figcaption{flex-direction:column;align-items:flex-start;gap:2px}
.br-stage.is-narrow .br-tile figcaption .t{max-width:100%}
.br-stage.is-narrow .br-foot{flex-direction:column;gap:4px}
.br-stage.is-narrow .br-rows li{padding:6px 0}
.br-stage.is-narrow .br-map{height:38px;margin:4px 0 0}
.br-stage.is-narrow .br-foot .fx{display:none}

/* reinforcement learning */
.rl-stage{display:grid;grid-template-columns:minmax(0,1.08fr) minmax(0,.92fr);grid-template-rows:auto minmax(0,1fr) auto;grid-template-areas:"log log" "prof cur" "slot slot";gap:10px}
.rl-p{min-height:0;min-width:0;display:flex;flex-direction:column;border:1px solid var(--line);border-radius:8px;padding:10px 12px 8px;background:var(--bg)}
.rl-p canvas{flex:1;min-height:0;margin-top:8px}
.rl-log{grid-area:log}
.rl-log canvas{flex:none;height:clamp(120px,21vh,230px)}
.rl-prof{grid-area:prof}
.rl-cur{grid-area:cur}
.rl-slot{grid-area:slot;position:relative;min-height:120px;border:1px dashed var(--line2);border-radius:8px;display:grid;align-items:center;justify-items:center}
.rl-slot>*{grid-area:1/1}
.rl-ph{margin:0;padding:0 16px;font-family:var(--mono);font-size:10.5px;letter-spacing:.08em;text-transform:uppercase;color:var(--meta);display:flex;align-items:center;gap:10px;text-align:center}
.rl-ph i{flex:none;width:6px;height:6px;border-radius:50%;border:1px solid var(--cu);animation:aipulse 1.3s ease-in-out infinite}
.rl-ph.ready{color:var(--muted)}
.rl-ph.ready i{background:var(--cu)}
.rl-card{position:relative;align-self:stretch;justify-self:stretch;margin:-1px;border:1px solid rgba(222,143,74,.45);border-radius:8px;background:#0F0F12;padding:13px 16px 12px;display:flex;flex-direction:column;justify-content:space-between;gap:10px;opacity:0;visibility:hidden}
.rl-ch{display:flex;align-items:baseline;gap:10px;font-family:var(--mono);font-size:10px;letter-spacing:.12em;text-transform:uppercase;color:var(--meta);white-space:nowrap}
.rl-ch .k{color:var(--cu)}
.rl-ch .m{overflow:hidden;text-overflow:ellipsis;min-width:0}
.rl-ch .s{margin-left:auto;color:var(--text)}
.rl-ch .s b{font-weight:400;color:var(--cu-hi)}
.rl-ct{margin:0;display:flex;align-items:baseline;gap:4px 14px;flex-wrap:wrap}
.rl-ct b{font-weight:400;font-size:19px;letter-spacing:-.01em;color:var(--ink)}
.rl-ct span{font-size:13.5px;color:var(--muted)}
.rl-cg{margin:0;display:grid;grid-template-columns:minmax(0,1.3fr) minmax(0,1fr) minmax(0,1fr) minmax(0,1.2fr);gap:8px 14px;border-top:1px solid var(--line);padding-top:10px}
.rl-cg dt{font-family:var(--mono);font-size:9.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--meta);margin-bottom:3px}
.rl-cg dd{margin:0;font-size:13px;line-height:1.35;color:var(--text)}
.rl-cf{display:flex;align-items:center;gap:10px}
.rl-b{pointer-events:auto;flex:none;font-family:var(--mono);font-size:10.5px;letter-spacing:.12em;text-transform:uppercase;padding:8px 16px;border-radius:6px;border:1px solid var(--line2);background:none;color:var(--text);cursor:pointer;transition:border-color .3s,color .3s,background .3s}
.rl-b.acc{border-color:rgba(222,143,74,.6);color:var(--cu-hi)}
.rl-b:hover{border-color:var(--cu);color:var(--ink)}
.rl-b.acc.on{background:var(--cu);border-color:var(--cu);color:#09090B}
.rl-b.rej.on{background:var(--line2);border-color:var(--muted);color:var(--ink)}
.rl-b:focus-visible{outline:2px solid var(--cu);outline-offset:2px}
.rl-note{margin-left:auto;min-width:0;display:flex;align-items:center;gap:8px;font-family:var(--mono);font-size:10px;line-height:1.5;letter-spacing:.04em;color:var(--muted);text-align:right}
.rl-note i{flex:none;width:6px;height:6px;border-radius:50%;background:var(--cu);animation:aipulse 1.3s ease-in-out infinite}
.rl-note.set i{animation:none}
.rl-stage.is-compact{grid-template-rows:auto minmax(0,1fr);grid-template-areas:"log log" "prof cur"}
.rl-stage.is-compact .rl-slot{position:absolute;left:0;right:0;top:0;min-height:0;border:0;display:block}
.rl-stage.is-compact .rl-ph{display:none}
.rl-stage.is-compact .rl-card{margin:0;gap:9px;padding:11px 12px 11px;box-shadow:0 0 0 6px var(--void)}
.rl-stage.is-compact .rl-cg{grid-template-columns:repeat(2,minmax(0,1fr))}
.rl-stage.is-compact .rl-ct b{font-size:17px}
.rl-stage.is-compact .rl-cf{flex-wrap:wrap}
.rl-stage.is-compact .rl-note{margin-left:0;flex-basis:100%;text-align:left}
.rl-stage.is-compact .rl-ch .m{display:none}
.rl-stage.is-short{grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);grid-template-areas:"log cur" "prof prof"}
.rl-stage.is-short .rl-log canvas,.rl-stage.is-short .rl-cur canvas{flex:none;height:96px}
.rl-stage.is-short .rl-p{padding:7px 10px 5px}
.rl-stage.is-narrow{grid-template-columns:minmax(0,1fr);grid-template-rows:auto auto minmax(0,1fr);grid-template-areas:"log" "cur" "prof"}
.rl-stage.is-narrow .rl-log canvas{height:116px}
.rl-stage.is-narrow .rl-cur canvas{flex:none;height:92px}
.rl-stage.is-narrow .rl-p{padding:8px 10px 6px;border-radius:6px}

@media (max-width:900px){
  .ai-stage{left:var(--gut);right:var(--gut);top:56%;bottom:18px}
  .ai-steps{display:none}
  .ai-end .src{margin-top:18px}
}
@media (orientation:landscape) and (max-height:500px){
  .ai-stage{left:46vw;right:var(--gut);top:52px;bottom:12px}
  .ai-steps{display:none}
  .ai-end .src{margin-top:14px}
}
@media (prefers-reduced-motion:reduce){
  .br-caret::after,.br-dot,.br-rows li.act .st,.rl-ph i,.rl-note i{animation:none}
  .br-ans .w,.br-rows em,.br-rows .bar,.ai-steps li,.ai-steps li span{transition:none}
}
@media (max-width:900px){
  .ai-scene .sim-note{left:var(--gut);bottom:8px;font-size:9px;text-align:right;z-index:4;background:var(--void);padding:3px 0}
  .ai-scene .ai-stage{bottom:30px}
}
@media (orientation:landscape) and (max-height:500px){
  .ai-scene .sim-note{bottom:4px}
  .ai-scene .ai-stage{bottom:22px}
  .br-tile figcaption{flex-direction:column;align-items:flex-start;gap:2px}
  .br-tile figcaption .t{max-width:100%}
}
@media print{.ai-stage{display:none!important}}
/* ================= fine AI ================= */

/* che cosa offre AION: tre colonne di servizi */
.svc-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(24px,4vw,64px);margin-top:70px}
.svc-h{font-family:var(--mono);font-size:10.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--cu);padding-bottom:14px;border-bottom:1px solid var(--line2)}
ul.svc{list-style:none;margin:0;padding:0}
ul.svc li{border-bottom:1px solid var(--line);padding:16px 0}
ul.svc h4{font-weight:400;font-size:15.5px;line-height:1.35;letter-spacing:-.01em;margin:0 0 6px;color:var(--ink)}
ul.svc p{font-size:13.5px;line-height:1.6;color:var(--muted);margin:0}
@media (max-width:900px){.svc-grid{grid-template-columns:1fr;gap:34px;margin-top:44px}}