/* Skinapse — presentazione del brand
   Colori: blu logo #91ADCE e ardesia #394E60 dai file del logo; gli altri campionati dalla cartella COLORI (proposta). */
:root{
  --bg:#F8FCFF;          /* bianco opaco — COLORI/0 */
  --ink:#22303B;         /* testo, ardesia profonda */
  --slate:#394E60;       /* studio infinito */
  --blue:#91ADCE;        /* logo */
  --blue-ink:#4F6E93;    /* blu per testi piccoli (contrasto AA) */
  --pearl:#E9EEF2;
  --mist:#DCE6EC;
  --ice:#C9E7EF;         /* COLORI/1 */
  --aqua:#9DD5E0;        /* COLORI/3 */
  --grey:#AFB8C1;        /* COLORI/4 */
  --powder:#BEACA2;      /* COLORI/5 */
  --soft:#5A6B79;        /* testo secondario */
  --serif:"Newsreader", Georgia, "Times New Roman", serif;
  --sans:"Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --m:clamp(20px, 4.4vw, 72px);
  --gap:clamp(96px, 14vw, 220px);
  --ease:cubic-bezier(.2,.7,.2,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--sans);font-size:17px;line-height:1.55;-webkit-font-smoothing:antialiased;overflow-x:hidden}
img,svg,canvas{display:block;max-width:100%}
img{height:auto}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
a{color:inherit}
strong{font-weight:500}
::selection{background:var(--ice)}
:focus-visible{outline:2px solid var(--blue-ink);outline-offset:3px}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.skip{position:absolute;left:-999px;top:8px;z-index:100;background:var(--ink);color:#fff;padding:8px 14px}
.skip:focus{left:8px}

/* ---------- testo ---------- */
.body{font-size:clamp(16px,1.15vw,19px);max-width:36em}
.body--soft{color:var(--soft)}
.body--center{margin-inline:auto;text-align:center}
.body--accent{font-family:var(--serif);font-size:clamp(20px,1.6vw,26px);line-height:1.4;font-style:italic;font-weight:300;color:var(--slate)}
.statement{font-family:var(--serif);font-weight:300;font-size:clamp(24px,2.5vw,38px);line-height:1.3;letter-spacing:-.005em;max-width:24em}
.statement strong{font-weight:400}
.statement--center{text-align:center;margin:var(--gap) auto 0;max-width:22em;padding-inline:var(--m)}
.fig{font-size:13px;letter-spacing:.02em;color:var(--soft);margin-top:12px}
.fig--on{position:absolute;left:var(--m);bottom:22px;margin:0;color:#fff;background:rgba(34,48,59,.32);padding:4px 10px}
.tag{display:inline-block;font-family:var(--sans);font-size:12px;font-weight:500;letter-spacing:.02em;color:var(--blue-ink);background:#EAF1F8;padding:3px 10px;border-radius:999px;vertical-align:middle;white-space:nowrap}
.tag--q{color:var(--soft);background:var(--pearl);white-space:normal}
.sub-title{font-family:var(--sans);font-weight:300;font-size:clamp(28px,3vw,46px);letter-spacing:-.02em;line-height:1.08;text-transform:uppercase}
.sub-title .tag{text-transform:none;letter-spacing:.02em;margin-left:8px}

/* ---------- reveal ---------- */
.js [data-reveal]{opacity:0;transform:translateY(22px);transition:opacity .9s var(--ease),transform .9s var(--ease);transition-delay:var(--d,0ms)}
.js [data-reveal].in{opacity:1;transform:none}

/* ---------- navigazione ---------- */
.nav{position:fixed;inset:0 0 auto 0;z-index:50;display:flex;align-items:center;justify-content:space-between;gap:24px;padding:14px var(--m);background:rgba(248,252,255,.94);transform:translateY(-110%);transition:transform .6s var(--ease)}
.nav:not(.on){visibility:hidden;transition:transform .6s var(--ease),visibility 0s .6s}
.nav.on{transform:none}
.nav__logo img{width:118px;height:auto}
.nav ul{display:flex;gap:clamp(16px,2.4vw,40px)}
.nav a{text-decoration:none;font-size:14px;letter-spacing:.01em;color:var(--slate);padding:6px 0;position:relative}
.nav ul a::after{content:"";position:absolute;left:0;right:0;bottom:2px;height:1px;background:currentColor;transform:scaleX(0);transform-origin:left;transition:transform .4s var(--ease)}
.nav ul a:hover::after,.nav ul a[aria-current="true"]::after{transform:scaleX(1)}
.nav__toggle{display:none;font:inherit;font-size:14px;color:var(--slate);background:none;border:0;padding:8px 0;cursor:pointer}

/* ============ ORIGINE ============ */
.origin{position:relative;padding:0 var(--m) 4vh;background:var(--bg)}
.origin__signal{position:absolute;left:calc(var(--m) * .5);top:0;bottom:0;width:9px;pointer-events:none}
.origin__line{position:absolute;left:4px;top:0;width:1px;height:100%;background:linear-gradient(var(--mist),var(--mist));transform-origin:top;transform:scaleY(var(--p,0));opacity:.9}
.origin__dot{position:absolute;left:0;top:0;width:9px;height:9px;border-radius:50%;background:var(--blue);transform:translateY(calc(var(--py,0) * 1px));box-shadow:0 0 0 6px rgba(145,173,206,.18)}
.o-step{display:grid;grid-template-columns:repeat(12,1fr);column-gap:24px;align-content:center;min-height:78vh;padding-block:9vh}
.o-word{grid-column:1 / -1;font-family:var(--sans);font-weight:300;font-size:clamp(56px,10.5vw,190px);line-height:.9;letter-spacing:-.045em;text-transform:uppercase;color:#8297A9;margin:0 0 5vh -.05em}
.o-note{grid-column:1 / span 2;font-size:13px;color:var(--soft);padding-top:.7em}
.o-lead{font-family:var(--serif);font-weight:300;font-size:clamp(36px,6.4vw,104px);line-height:1.04;letter-spacing:-.024em;grid-column:3 / span 10}
.o-lead strong{font-weight:400}
.o-lead--close{font-size:clamp(28px,3.4vw,52px);line-height:1.16;grid-column:3 / span 10;margin-top:28px}
.o-text{font-family:var(--serif);font-weight:300;font-size:clamp(24px,2.7vw,44px);line-height:1.28;letter-spacing:-.01em}
.o-text strong{font-weight:400}
.o-text--soft{color:var(--soft);margin-top:28px}
.o-step--hero{min-height:100vh;min-height:100svh;padding-block:14vh 10vh;align-content:center}
.o-step--hero .o-note{align-self:start}
.o-scroll{grid-column:3 / span 4;margin-top:9vh;font-size:13px;color:var(--soft);display:flex;align-items:center;gap:12px}
.o-scroll::after{content:"";width:48px;height:1px;background:var(--grey)}
.o-step--r .o-word{text-align:right;margin-right:-.05em}
.o-step--r .o-text{grid-column:5 / span 8}
.o-step--l .o-text{grid-column:1 / span 8}
.o-step--wide .o-word{text-align:right;margin-right:-.05em}
.o-step--wide .o-text{grid-column:3 / span 9}
.o-step--wide .o-text--soft{grid-column:6 / span 7}
.o-step--name{row-gap:0}
.o-step--name > .o-text{grid-column:3 / span 8}
.name-split{grid-column:2 / span 11;display:flex;align-items:center;flex-wrap:wrap;gap:0 clamp(16px,3vw,48px);margin:6vh 0 7vh;font-family:var(--serif);font-weight:300;font-style:italic;font-size:clamp(64px,11vw,190px);line-height:.95;letter-spacing:-.035em;color:var(--slate)}
.name-split__plus{width:clamp(40px,6vw,96px);height:1px;background:var(--grey);position:relative}
.name-split__plus::after{content:"";position:absolute;right:-5px;top:-4px;width:9px;height:9px;border-radius:50%;background:var(--blue)}
.name-def{grid-column:6 / span 7}
.o-step--last{min-height:84vh}
.o-step--last .o-word{text-align:right;margin-right:-.05em}
.o-step--last .o-text{grid-column:3 / span 8}

/* ============ SEGNO ============ */
.sign{position:relative;height:430vh;background:var(--bg)}
.sign__stage{position:sticky;top:0;height:100vh;height:100svh;display:grid;grid-template-rows:1fr auto auto;justify-items:center;align-items:center;padding:12vh var(--m) 7vh;overflow:hidden}
.sign__art{width:min(74vw,940px);align-self:center}
.sign__svg{width:100%;height:auto;overflow:visible}
.sign__steps{display:flex;gap:clamp(12px,2.6vw,40px);flex-wrap:wrap;justify-content:center;font-size:14px;color:#7D8A96;margin-top:2vh}
.sign__steps li{transition:color .4s;position:relative;padding-left:14px}
.sign__steps li::before{content:"";position:absolute;left:0;top:.55em;width:6px;height:6px;border-radius:50%;background:currentColor;opacity:.6}
.sign__steps li.on{color:var(--slate)}
.sign__claim{font-family:var(--serif);font-weight:300;font-size:clamp(24px,2.6vw,40px);letter-spacing:-.01em;color:var(--slate);margin-top:4vh;opacity:0;transform:translateY(14px);transition:opacity .8s var(--ease),transform .8s var(--ease);text-align:center}
.sign__claim.on{opacity:1;transform:none}
.sign__static{display:none}

/* ============ CAPITOLI ============ */
.chapter{padding-bottom:var(--gap)}
.chap-head{display:grid;grid-template-columns:repeat(12,1fr);column-gap:24px;padding:var(--gap) var(--m) clamp(56px,7vw,110px);align-items:end}
.chap-title{grid-column:1 / span 7;font-weight:300;font-size:clamp(46px,8.2vw,140px);line-height:.92;letter-spacing:-.04em;text-transform:uppercase;color:var(--slate)}
.chap-head .body{grid-column:9 / span 4}
.chap-head__side{grid-column:8 / span 5;display:grid;gap:24px}
.chap-head__side .body{grid-column:auto}
.finish{display:inline-flex;justify-self:start;padding:4px;border-radius:999px;background:var(--mist)}
.finish button{font:inherit;font-size:15px;border:0;border-radius:999px;padding:10px 22px;background:transparent;color:var(--slate);cursor:pointer;transition:background .3s,color .3s}
.finish button[aria-pressed="true"]{background:var(--slate);color:#fff}
.finish button:hover{background:#cfdbe3}
.finish button[aria-pressed="true"]:hover{background:var(--slate)}

/* copertina filosofia */
.cover{position:relative;height:100vh;height:100svh;min-height:560px;overflow:hidden;background:var(--ice)}
.cover__bg{position:absolute;inset:0;width:100%;height:115%;object-fit:cover;transform:translateY(calc(var(--pr,0) * -10%))}
.cover__in{position:relative;height:100%;display:flex;flex-direction:column;justify-content:center;align-items:center;text-align:center;padding:var(--m)}
.cover__title{width:min(78vw,1100px);line-height:0}
.cover__title img{width:100%}
.cover__claim{font-family:var(--serif);font-weight:300;font-size:clamp(22px,2.4vw,36px);color:var(--ink);margin-top:3vh}

/* contatto */
.contact{display:grid;grid-template-columns:repeat(12,1fr);column-gap:24px;padding:var(--gap) var(--m) 0;align-items:center}
.contact__text{grid-column:1 / span 5;display:grid;gap:28px}
.hint{font-size:14px;color:var(--blue-ink);display:flex;gap:10px;align-items:center}
.hint::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--blue);box-shadow:0 0 0 5px rgba(145,173,206,.22);flex:none}
.contact__field{grid-column:6 / span 7;position:relative;aspect-ratio:7/6;background:var(--pearl);overflow:hidden;cursor:crosshair;touch-action:pan-y}
#field{position:absolute;inset:0;width:100%;height:100%}
.field-fallback{position:absolute;inset:0;width:100%;height:100%}
.js .field-fallback{display:none}

/* corona */
.ring-sec{padding:var(--gap) var(--m) 0;background:var(--bg)}
.ring{--R:clamp(150px,23vw,330px);--S:clamp(86px,9.5vw,150px);position:relative;width:calc(var(--R) * 2 + var(--S));aspect-ratio:1;margin:0 auto;max-width:100%}
.ring__wires{position:absolute;inset:0;width:100%;height:100%;overflow:visible}
.ring__core{position:absolute;left:50%;top:50%;width:clamp(110px,14vw,210px);transform:translate(-50%,-50%)}
.ring__item{position:absolute;left:50%;top:50%;width:var(--S);aspect-ratio:4/5;overflow:hidden;background:var(--pearl);
  transform:translate(-50%,-50%) rotate(calc(var(--a) * 36deg - 90deg)) translateX(var(--R)) rotate(calc(var(--a) * -36deg + 90deg))}
.ring__item img{width:100%;height:100%;object-fit:cover}
.ring__item .ph,.ring__item .neuro{height:100%}
.ring__item .ph span{display:none}
.ring__caption{text-align:center;font-family:var(--serif);font-weight:300;font-size:clamp(24px,2.5vw,38px);margin-top:clamp(40px,5vw,80px)}

/* segnaposto fotografici */
.ph{position:relative;display:flex;align-items:flex-end;min-height:220px;background-size:cover;background-position:center;overflow:hidden}
.ph::after{content:"";position:absolute;inset:0;background:radial-gradient(120% 90% at 30% 20%,rgba(255,255,255,.55),rgba(255,255,255,0) 60%)}
.ph span{position:relative;z-index:1;margin:16px;padding:6px 10px;font-size:13px;line-height:1.35;color:var(--slate);background:rgba(248,252,255,.86);max-width:80%}
.ph--c1{background-image:url(img/colore-1.webp)}
.ph--c3{background-image:url(img/colore-4.webp)}
.ph--c4{background-image:url(img/colore-5.webp)}
.ph--tall{aspect-ratio:4/5;min-height:0}

/* principi */
.principles{padding:var(--gap) var(--m) 0}
.principle{display:grid;grid-template-columns:repeat(12,1fr);column-gap:24px;align-items:end}
.principle + .principle{margin-top:clamp(80px,9vw,150px)}
.principle--a .principle__fig{grid-column:6 / span 7;grid-row:1}
.principle--a .principle__txt{grid-column:1 / span 4;grid-row:1}
.principle--b .principle__fig{grid-column:1 / span 4}
.principle--b .principle__txt{grid-column:6 / span 5}
.principle__fig img{width:100%;aspect-ratio:3/2;object-fit:cover}
.principle__fig img.principle__tall{aspect-ratio:4/5}
.principle__k{font-size:13px;color:var(--soft);margin-bottom:10px}
.principle__t{font-weight:300;font-size:clamp(40px,5.4vw,88px);letter-spacing:-.035em;line-height:.95;text-transform:uppercase;color:var(--slate);margin-bottom:24px}

/* trittico */
.triptych{display:grid;grid-template-columns:repeat(3,1fr);gap:4px;margin-top:var(--gap)}
.tri{position:relative;height:min(92vh,900px);overflow:hidden;background:var(--pearl)}
.tri__img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.tri .ph{align-items:flex-start}
.tri .ph span{margin-top:108px}
.tri__txt{position:absolute;inset:auto 0 0 0;padding:28px clamp(18px,2.2vw,36px) 32px;color:var(--ink);background:rgba(248,252,255,.9)}
.tri__t{font-weight:300;font-size:clamp(28px,3.4vw,54px);letter-spacing:-.02em;text-transform:uppercase;line-height:1;margin-bottom:12px;color:var(--slate)}
.tri__txt p{font-size:16px;max-width:22em}
.after-tri{margin-top:clamp(40px,5vw,72px);padding-inline:var(--m);font-family:var(--serif);font-size:clamp(20px,1.7vw,26px);font-weight:300}

/* dichiarazione */
.fullbleed{position:relative;margin-top:var(--gap);height:100vh;min-height:560px;overflow:hidden;display:flex;align-items:center;background:var(--grey)}
.fullbleed__img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.fullbleed__img{object-position:50% 40%}
.fullbleed .neuro--wide{position:absolute;inset:0;opacity:.55;mix-blend-mode:screen}
.fullbleed__txt{position:relative;margin-left:var(--m);margin-right:var(--m);max-width:17em;font-family:var(--serif);font-weight:300;font-size:clamp(26px,2.9vw,46px);line-height:1.22;letter-spacing:-.01em;color:var(--ink);background:rgba(248,252,255,.88);padding:clamp(22px,3vw,48px)}

/* ritmo */
.rhythm{padding:var(--gap) var(--m) 0;display:grid;gap:clamp(48px,6vw,90px)}
.rhythm__line{display:grid;grid-template-columns:repeat(4,1fr);position:relative}
.rhythm__line::before{content:"";position:absolute;left:0;right:0;top:4px;height:1px;background:var(--grey)}
.rhythm__line li{position:relative;padding-right:24px}
.rhythm__dot{display:block;width:9px;height:9px;border-radius:50%;background:var(--blue);margin-bottom:26px;box-shadow:0 0 0 7px var(--bg)}
.rhythm__line h3{font-weight:300;font-size:clamp(24px,2.4vw,38px);letter-spacing:-.02em;color:var(--slate)}
.rhythm__line p{font-size:15px;color:var(--soft);margin-top:6px}
.rhythm > .body{margin-left:auto;margin-right:8%}

/* ambizione */
.ambition{display:grid;grid-template-columns:repeat(12,1fr);column-gap:24px;padding:var(--gap) var(--m) 0;align-items:center}
.ambition__img{grid-column:1 / span 5}
.ambition__img img{width:100%;aspect-ratio:4/5;object-fit:cover}
.ambition__txt{grid-column:7 / span 6;display:grid;gap:30px}

/* ============ IDENTITÀ ============ */
.plate{position:relative;display:flex;align-items:center;justify-content:center;min-height:min(86vh,820px);padding:var(--m)}
.plate--pearl{background:var(--pearl)}
.plate--blue{background:var(--blue)}
.plate--slate{background:var(--slate)}
.plate .fig{position:absolute;left:var(--m);bottom:22px;margin:0}
.plate--pearl .fig{color:var(--soft)}
.plate__logo{width:min(70vw,980px)}
.plate__logo--s{width:min(34vw,520px)}
.plate__na{width:min(26vw,380px);filter:brightness(1.12)}
.plate-row{display:grid;grid-template-columns:1fr 1fr;gap:4px;margin-top:4px}
.plate-row .plate{min-height:min(70vh,640px)}

.build{padding:var(--gap) var(--m) 0}
.build__head{display:grid;grid-template-columns:repeat(12,1fr);column-gap:24px;margin-bottom:clamp(40px,5vw,72px);align-items:end}
.build__head .sub-title{grid-column:1 / span 6}
.build__head .body{grid-column:8 / span 5}
.build__grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.card{background:#fff;padding:clamp(14px,1.6vw,26px);display:flex;flex-direction:column;gap:14px}
.card svg{width:100%;aspect-ratio:1;background:var(--bg)}
.card figcaption{font-size:14px;color:var(--slate)}
.detail-curve{margin-top:16px;background:#fff;padding:clamp(14px,2vw,32px)}
.detail-curve svg{width:100%;aspect-ratio:16/7;background:var(--bg)}

.palette{display:grid;grid-template-columns:repeat(12,1fr);column-gap:24px;padding:var(--gap) var(--m) 0;align-items:center}
.palette__wheel{grid-column:1 / span 6}
.palette__list{grid-column:8 / span 5;display:grid;gap:24px}
.swatches{display:grid;gap:2px}
.swatches li{display:grid;grid-template-columns:44px 1fr auto;gap:16px;align-items:center;padding:10px 0}
.swatches i{width:44px;height:44px;border-radius:50%;display:block;box-shadow:inset 0 0 0 1px rgba(57,78,96,.08)}
.swatches b{font-weight:500;font-size:15px;display:block}
.swatches small{font-size:13px;color:var(--soft);font-variant-numeric:tabular-nums}

.type{display:grid;grid-template-columns:1fr 1fr;gap:4px;margin-top:var(--gap)}
.type__spec{background:var(--pearl);padding:clamp(28px,4vw,64px) var(--m);display:grid;gap:14px;align-content:start}
.type__big{font-size:clamp(120px,16vw,260px);line-height:.9;letter-spacing:-.04em;color:var(--slate)}
.type__big--sans{font-family:var(--sans);font-weight:300}
.type__big--serif{font-family:var(--serif);font-weight:300;font-style:italic}
.type__name{font-weight:400;font-size:26px;letter-spacing:-.01em}
.type__note{font-size:15px;color:var(--soft);max-width:30em}
.type__sample{font-size:clamp(22px,2.2vw,34px);color:var(--ink);margin-top:10px}
.type__sample--sans{font-weight:300;letter-spacing:-.01em}
.type__sample--serif{font-family:var(--serif);font-weight:300}

.photo-lang{padding:var(--gap) var(--m) 0}
.photo-lang__head{display:grid;grid-template-columns:repeat(12,1fr);column-gap:24px;margin-bottom:clamp(40px,5vw,72px);align-items:end}
.photo-lang__head .sub-title{grid-column:1 / span 6}
.photo-lang__head .body{grid-column:8 / span 5}
.photo-grid{display:grid;grid-template-columns:1.25fr 1fr 1fr 1.25fr;gap:4px;align-items:start}
.photo-grid .ph,.photo-grid img{aspect-ratio:3/4;width:100%;min-height:0;object-fit:cover}
.photo-grid figure:nth-child(2),.photo-grid figure:nth-child(3){margin-top:12vh}

.graphics{padding:var(--gap) var(--m) 0}
.graphics__head{display:grid;grid-template-columns:repeat(12,1fr);column-gap:24px;margin-bottom:clamp(40px,5vw,72px);align-items:end}
.graphics__head .sub-title{grid-column:1 / span 5}
.graphics__head .body{grid-column:7 / span 6}
.graphics__plates{display:grid;grid-template-columns:repeat(3,1fr);gap:4px}
.nplate .neuro,.label-card{aspect-ratio:3/4;background:var(--pearl);width:100%}
.label-card{position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;background:#DCE5EB;padding:24px;text-align:center}
.dotring{position:absolute;left:50%;top:42%;width:62%;transform:translate(-50%,-50%)}
.label-card__na{width:30%;position:relative;margin-top:-14%}
.label-card__name{font-weight:300;font-size:clamp(20px,2vw,30px);text-transform:uppercase;letter-spacing:.02em;color:var(--slate);margin-top:28%}
.label-card__meta{display:flex;gap:18px;font-size:13px;color:var(--soft);margin-top:10px}

.neuro{position:relative;overflow:hidden}
.neuro svg{position:absolute;inset:0;width:100%;height:100%}

.apps{padding:var(--gap) var(--m) 0}
.apps__t{margin-bottom:clamp(40px,5vw,72px)}
.wall{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(12px,1.6vw,26px);padding:clamp(28px,4vw,72px);background:#C3CDD6}
.poster{position:relative;aspect-ratio:2/3;overflow:hidden;display:flex;flex-direction:column;justify-content:flex-end;padding:clamp(16px,2vw,30px);box-shadow:0 30px 60px -40px rgba(30,45,60,.45)}
.poster--a{background:var(--bg)}
.poster--a .neuro{position:absolute;inset:0}
.poster--a .poster__logo{position:relative;width:78%}
.poster--a .poster__claim{position:relative;font-family:var(--serif);font-weight:300;font-size:clamp(14px,1.3vw,20px);margin-top:14px;color:var(--slate)}
.poster--b{background:var(--blue)}
.poster--b .poster__img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.9;mix-blend-mode:multiply}
.poster--b .poster__logo{position:relative;width:70%}
.poster--c{background:var(--slate);justify-content:space-between;align-items:center;text-align:center}
.poster--c .poster__na{width:48%;margin-top:22%;filter:brightness(1.12)}
.poster--c .poster__claim{font-family:var(--serif);font-weight:300;font-style:italic;color:#fff;font-size:clamp(16px,1.6vw,24px)}
.poster--c .poster__logo{width:46%;filter:brightness(1.15)}
.social{display:grid;grid-template-columns:repeat(4,1fr);gap:4px;margin-top:clamp(56px,7vw,110px)}
.post{position:relative;aspect-ratio:4/5;overflow:hidden;background:var(--pearl)}
.post img{width:100%;height:100%;object-fit:cover}
.post--2{background:var(--slate);display:flex;flex-direction:column;justify-content:space-between;padding:clamp(16px,2vw,28px)}
.post--2 p{font-family:var(--serif);font-weight:300;color:#fff;font-size:clamp(20px,2vw,30px);line-height:1.2}
.post--2 img{width:46%;height:auto;filter:brightness(1.15)}
.post--3 p{position:absolute;left:0;right:0;bottom:0;padding:clamp(16px,2vw,28px);font-weight:300;font-size:clamp(20px,2vw,30px);line-height:1.1;text-transform:uppercase;color:var(--slate);background:rgba(248,252,255,.86)}
.post--4 .neuro{position:absolute;inset:0;background:var(--blue)}
.post__na{position:absolute;left:50%;top:50%;width:46%!important;height:auto!important;transform:translate(-50%,-50%);filter:brightness(1.35) saturate(.6)}

/* ============ PACKAGING ============ */
.chapter--pack{background:var(--pearl)}
.pack-hero img{width:100%;height:auto}
.pack-hero .fig{padding-inline:var(--m)}
.pack-pair{display:grid;grid-template-columns:1fr 1fr;gap:4px;margin-top:4px}
.pack-pair img,.pack-second img{width:100%;aspect-ratio:4/5;object-fit:cover}
.pack-pair .fig,.pack-second figure .fig,.pack-detail .fig{padding-inline:clamp(12px,1.4vw,22px)}
.pack-detail{display:grid;grid-template-columns:2fr 1fr;gap:4px;margin-top:var(--gap);padding-inline:var(--m);align-items:end}
.pack-detail img{width:100%;object-fit:cover}
.pack-detail__wide img{aspect-ratio:3/2}
.pack-detail__sq img{aspect-ratio:4/5}
.pack-second{display:grid;grid-template-columns:1.1fr 1fr 1fr 1fr;gap:4px;margin-top:var(--gap);padding-inline:var(--m);align-items:end}
.pack-second__txt{display:grid;gap:22px;padding-right:clamp(12px,2vw,36px);align-self:center}

/* ============ RITUALE ============ */
.chain{display:grid;grid-template-columns:repeat(5,1fr);padding:0 var(--m);position:relative;counter-reset:c}
.chain::before{content:"";position:absolute;left:var(--m);right:var(--m);top:22px;height:1px;background:var(--grey)}
.chain li{position:relative;padding-right:16px}
.chain__n{display:block;width:45px;height:45px;border-radius:50%;background:var(--bg);box-shadow:inset 0 0 0 1px var(--grey);margin-bottom:26px;position:relative}
.chain__n::after{content:"";position:absolute;inset:16px;border-radius:50%;background:var(--blue)}
.chain h3{font-weight:300;font-size:clamp(22px,2.3vw,36px);letter-spacing:-.02em;line-height:1.08;color:var(--slate)}
.future{display:grid;grid-template-columns:repeat(12,1fr);column-gap:24px;padding:var(--gap) var(--m) 0;align-items:center}
.future__phone{grid-column:1 / span 5;display:flex;flex-direction:column;align-items:center}
.future__list{grid-column:7 / span 6;display:grid;gap:22px}
.phone{width:min(300px,70vw);aspect-ratio:9/19;border-radius:44px;background:#1F2B35;padding:12px;box-shadow:0 50px 80px -50px rgba(30,45,60,.6)}
.phone__screen{height:100%;border-radius:34px;background:var(--bg);overflow:hidden;display:flex;flex-direction:column;align-items:center;padding:34px 22px 22px;gap:12px}
.phone__logo{width:96px}
.phone__img{width:100%;aspect-ratio:1;object-fit:cover;border-radius:4px;margin-top:6px}
.phone__t{font-family:var(--serif);font-size:24px;font-weight:300;margin-top:4px}
.phone__s{font-size:12px;color:var(--soft)}
.phone__btn{display:block;width:100%;text-align:center;font-size:13px;padding:11px;border-radius:999px;background:var(--slate);color:#fff}
.phone__btn--g{background:var(--pearl);color:var(--slate)}
.dev{display:grid}
.dev li{display:flex;justify-content:space-between;align-items:center;gap:18px;padding:18px 0;border-top:1px solid var(--mist)}
.dev li:last-child{border-bottom:1px solid var(--mist)}
.dev h4{font-weight:400;font-size:clamp(17px,1.4vw,21px)}

/* ============ SUONO ============ */
.chapter--sound{background:var(--slate);color:#F2F6F9;padding-bottom:0}
.sound{position:relative;display:grid;grid-template-columns:repeat(12,1fr);column-gap:24px;padding:var(--gap) var(--m);align-items:center;overflow:hidden}
.sound__wave{position:absolute;left:0;right:0;top:0;height:240px;opacity:.5;pointer-events:none}
.sound__wave svg{width:100%;height:100%}
.sound__txt{grid-column:1 / span 6;display:grid;gap:24px;position:relative}
.sound__kicker{font-size:14px;color:#BFD0E2}
.sound__title{font-family:var(--serif);font-weight:300;font-size:clamp(44px,5.6vw,92px);line-height:1;letter-spacing:-.03em}
.sound .body{color:#DCE5EC}
.btn{justify-self:start;display:inline-flex;align-items:center;gap:12px;margin-top:10px;padding:16px 28px;border-radius:999px;background:#F8FCFF;color:var(--slate);text-decoration:none;font-weight:500;font-size:16px;transition:transform .3s var(--ease),background .3s}
.btn::after{content:"";width:22px;height:1px;background:currentColor;transition:width .3s var(--ease)}
.btn:hover{background:var(--ice);transform:translateY(-2px)}
.btn:hover::after{width:34px}
.sound__player{grid-column:8 / span 5;position:relative;display:grid;gap:22px}
.sound__player iframe{border:0;border-radius:12px;background:#2E4152}
.sound__qr{display:flex;align-items:center;gap:20px;font-size:15px;color:#DCE5EC}
.sound__qr img{background:#F8FCFF;padding:12px;width:120px;height:120px}

/* ============ CHIUSURA ============ */
.closing{min-height:100vh;min-height:100svh;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:var(--m);background:var(--bg);text-align:center}
.closing__logo{width:min(76vw,1000px)}
.closing__claim{font-family:var(--serif);font-weight:300;font-size:clamp(24px,2.6vw,40px);color:var(--slate);margin-top:6vh}
.credits{background:var(--bg);padding:0 var(--m) 48px}
.credits__in{display:grid;grid-template-columns:auto auto 1fr;gap:clamp(24px,5vw,90px);align-items:end;padding-top:32px;border-top:1px solid var(--mist);font-size:14px;color:var(--soft)}
.credits strong{color:var(--ink);font-weight:500}
.credits__ikone{display:flex;align-items:center;gap:16px}
.ikone-mark{width:46px;height:42px;background:var(--slate);-webkit-mask:url(img/ikone.png) center/contain no-repeat;mask:url(img/ikone.png) center/contain no-repeat;flex:none}
.credits__note{justify-self:end;max-width:28em;text-align:right;font-size:13px}

/* ============ RESPONSIVE ============ */
@media (max-width:1000px){
  .chap-head__side{grid-column:1 / -1;margin-top:20px}
  .chap-head .body,.build__head .body,.photo-lang__head .body,.graphics__head .body{grid-column:1 / -1;margin-top:20px}
  .chap-title,.build__head .sub-title,.photo-lang__head .sub-title,.graphics__head .sub-title{grid-column:1 / -1}
  .build__grid{grid-template-columns:1fr 1fr}
  .pack-second{grid-template-columns:1fr 1fr}
  .pack-second__txt{grid-column:1 / -1;padding:0 0 32px}
}
@media (max-width:760px){
  body{font-size:16px}
  .nav ul{display:none;position:absolute;top:100%;left:0;right:0;flex-direction:column;gap:0;background:var(--bg);padding:8px var(--m) 18px}
  .nav ul.open{display:flex}
  .nav ul a{display:block;padding:12px 0;font-size:16px}
  .nav__toggle{display:block}
  .origin__signal{display:none}
  .o-step{grid-template-columns:1fr;min-height:auto;padding-block:12vh}
  .o-step > *, .o-step--name > .o-text{grid-column:1 / -1 !important}
  .o-note{margin-bottom:14px;padding:0}
  .o-step--hero{min-height:100svh;padding-block:14vh 10vh}
  .o-scroll{margin-top:6vh}
  .name-split{margin:5vh 0}
  .name-def{grid-column:1 / -1}
  .sign__steps{font-size:12px;gap:8px 14px}
  .sign__steps li:not(.on){display:none}
  .contact,.ambition,.palette,.future,.sound,.principle{grid-template-columns:1fr;row-gap:36px}
  .contact > *,.ambition > *,.palette > *,.future > *,.sound > *,.principle > *{grid-column:1 / -1 !important;grid-row:auto !important}
  .contact__field{aspect-ratio:1}
  .ring{--R:min(36vw,170px);--S:min(19vw,92px)}
  .triptych{grid-template-columns:1fr}
  .tri{height:78vh}
  .rhythm__line{grid-template-columns:1fr 1fr;row-gap:44px}
  .rhythm__line::before{display:none}
  .rhythm > .body{margin:0}
  .plate{min-height:62vh}
  .plate__logo{width:84vw}
  .plate-row,.type{grid-template-columns:1fr}
  .plate__logo--s{width:66vw}
  .plate__na{width:52vw}
  .build__grid{grid-template-columns:1fr 1fr;gap:8px}
  .card{padding:10px}
  .card figcaption{font-size:13px}
  .photo-grid{grid-template-columns:1fr 1fr}
  .photo-grid figure:nth-child(2),.photo-grid figure:nth-child(3){margin-top:0}
  .graphics__plates{grid-template-columns:1fr 1fr}
  .nplate--label{grid-column:1 / -1}
  .nplate--label .label-card{aspect-ratio:4/3}
  .wall{grid-template-columns:1fr 1fr;padding:16px}
  .poster--c{display:none}
  .social{grid-template-columns:1fr 1fr}
  .pack-pair,.pack-detail{grid-template-columns:1fr}
  .pack-detail{padding:0}
  .pack-second{grid-template-columns:1fr;padding-inline:var(--m)}
  .chain{grid-template-columns:1fr;row-gap:28px}
  .chain::before{left:calc(var(--m) + 22px);right:auto;top:0;bottom:0;width:1px;height:auto}
  .chain li{display:flex;align-items:center;gap:22px}
  .chain__n{margin:0;flex:none}
  .dev li{flex-direction:column;align-items:flex-start;gap:8px}
  .credits__in{grid-template-columns:1fr}
  .credits__note{justify-self:start;text-align:left}
}

/* ---------- movimento ridotto ---------- */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .js [data-reveal]{opacity:1;transform:none;transition:none}
  .cover__bg{transform:none}
  .sign{height:auto}
  .sign__stage{display:none}
  .sign__static{display:grid}
  .nav{transition:none}
}
.sign.static{height:auto}
.sign.static .sign__stage{display:none}
.sign.static .sign__static{display:grid}
.sign__static{grid-template-columns:repeat(4,1fr);gap:16px;padding:var(--gap) var(--m);align-items:center}
.sign__static figure{display:grid;gap:10px;text-align:center;font-size:13px;color:var(--soft)}
.sign__static .sign__final{grid-column:1 / -1;margin-top:6vh}
.sign__static .sign__final img{width:min(80vw,900px);margin:0 auto}
.sign__static .sign__final p{font-family:var(--serif);font-weight:300;font-size:clamp(24px,2.6vw,40px);color:var(--slate);margin-top:3vh}
@media (max-width:760px){.sign__static{grid-template-columns:1fr 1fr}}
html:not(.js) .sign{height:auto}
html:not(.js) .sign__stage{display:none}
html:not(.js) .sign__static{display:grid}