/* =========================================================
   MB COMPANY — Liquid Glass / Matrix (monocromatico)
   ========================================================= */

:root{
  --black:#000;
  --ink-1:#ffffff;
  --ink-2:rgba(255,255,255,.72);
  --ink-3:rgba(255,255,255,.48);
  --ink-4:rgba(255,255,255,.30);

  --line:rgba(255,255,255,.10);
  --line-2:rgba(255,255,255,.18);

  --glass:rgba(255,255,255,.035);
  --glass-hi:rgba(255,255,255,.075);

  --r-lg:26px;
  --r-md:18px;
  --r-sm:12px;

  --wrap:1180px;
  --pad:clamp(20px,5vw,48px);

  --f-display:'Michroma','Eurostile','Arial Narrow',system-ui,sans-serif;
  --f-body:'Inter','SF Pro Text',-apple-system,BlinkMacSystemFont,'Segoe UI',Helvetica,Arial,sans-serif;

  --ease:cubic-bezier(.22,.61,.36,1);
  --ease-out:cubic-bezier(.16,1,.3,1);
}

*,*::before,*::after{box-sizing:border-box}

html{scroll-behavior:smooth;scroll-padding-top:88px;-webkit-text-size-adjust:100%}

body{
  margin:0;
  background:var(--black);
  color:var(--ink-2);
  font-family:var(--f-body);
  font-size:15px;
  font-weight:300;
  line-height:1.7;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  overflow-x:hidden;
}

img,svg,canvas{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button,input,textarea{font:inherit;color:inherit}

::selection{background:#fff;color:#000}

/* scrollbar */
::-webkit-scrollbar{width:10px}
::-webkit-scrollbar-track{background:#000}
::-webkit-scrollbar-thumb{background:rgba(255,255,255,.14);border-radius:20px;border:3px solid #000}
::-webkit-scrollbar-thumb:hover{background:rgba(255,255,255,.28)}

/* ---------- grain / vignette ---------- */
.grain{
  position:fixed;inset:0;z-index:9;pointer-events:none;
  opacity:.55;mix-blend-mode:overlay;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)' opacity='.42'/%3E%3C/svg%3E");
}
.grain::after{
  content:'';position:absolute;inset:0;
  background:radial-gradient(120% 90% at 50% 40%,transparent 45%,rgba(0,0,0,.55) 100%);
  mix-blend-mode:normal;
}

/* =========================================================
   LIQUID GLASS
   ========================================================= */
.glass{
  position:relative;
  border-radius:var(--r-lg);
  background:
    linear-gradient(158deg,rgba(255,255,255,.085) 0%,rgba(255,255,255,.022) 38%,rgba(255,255,255,.012) 62%,rgba(255,255,255,.05) 100%);
  -webkit-backdrop-filter:blur(26px) saturate(150%);
  backdrop-filter:blur(26px) saturate(150%);
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,.16),
    inset 0 -1px 0 rgba(255,255,255,.05),
    inset 0 0 34px rgba(255,255,255,.025),
    0 26px 60px -28px rgba(0,0,0,.95);
  isolation:isolate;
  transition:transform .7s var(--ease-out),box-shadow .7s var(--ease-out),background .7s var(--ease-out);
}
/* gradient hairline border */
.glass::before{
  content:'';position:absolute;inset:0;border-radius:inherit;padding:1px;
  background:linear-gradient(150deg,rgba(255,255,255,.55) 0%,rgba(255,255,255,.10) 28%,rgba(255,255,255,.02) 55%,rgba(255,255,255,.28) 100%);
  -webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);
  -webkit-mask-composite:xor;mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);
  mask-composite:exclude;
  pointer-events:none;z-index:2;
}
/* specular highlight following the pointer */
.glass::after{
  content:'';position:absolute;inset:0;border-radius:inherit;pointer-events:none;z-index:1;
  background:radial-gradient(340px circle at var(--mx,50%) var(--my,0%),rgba(255,255,255,.10),transparent 62%);
  opacity:0;transition:opacity .5s var(--ease);
}
.glass:hover::after{opacity:1}
.glass:hover{
  transform:translateY(-3px);
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,.24),
    inset 0 -1px 0 rgba(255,255,255,.06),
    inset 0 0 40px rgba(255,255,255,.04),
    0 40px 80px -32px rgba(0,0,0,1);
}

/* =========================================================
   TIPOGRAFIA / UTILITY
   ========================================================= */
.wrap{width:100%;max-width:var(--wrap);margin-inline:auto;padding-inline:var(--pad)}

.label{
  font-size:10px;font-weight:400;letter-spacing:.32em;text-transform:uppercase;
  color:var(--ink-4);margin:0 0 26px;
}
.label--flush{margin-bottom:20px}

.sublabel{
  font-size:10px;font-weight:400;letter-spacing:.32em;text-transform:uppercase;
  color:var(--ink-4);margin:0 0 26px;
}
.sublabel--flush{margin-bottom:20px}

.eyebrow{
  font-family:var(--f-display);font-size:9.5px;letter-spacing:.42em;text-transform:uppercase;
  color:var(--ink-4);margin:0 0 26px;
}

h1,h2,h3{font-family:var(--f-display);font-weight:400;color:var(--ink-1);margin:0;line-height:1.28;letter-spacing:.02em}

/* =========================================================
   BUTTONS
   ========================================================= */
.btn{
  --pad-y:14px;--pad-x:24px;
  position:relative;display:inline-flex;align-items:center;justify-content:center;gap:12px;
  padding:var(--pad-y) var(--pad-x);
  font-size:11px;font-weight:400;letter-spacing:.2em;text-transform:uppercase;
  color:var(--ink-1);border-radius:var(--r-sm);border:0;cursor:pointer;
  white-space:nowrap;overflow:hidden;
  transition:color .4s var(--ease),transform .4s var(--ease-out),box-shadow .5s var(--ease);
}
.btn svg{width:17px;height:17px;transition:transform .5s var(--ease-out)}
.btn:hover svg{transform:translateX(5px)}

.btn--glass{
  background:linear-gradient(160deg,rgba(255,255,255,.10),rgba(255,255,255,.02));
  -webkit-backdrop-filter:blur(18px) saturate(140%);backdrop-filter:blur(18px) saturate(140%);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.22),inset 0 0 0 1px rgba(255,255,255,.10),0 14px 30px -18px rgba(0,0,0,.9);
}
.btn--glass::after{
  content:'';position:absolute;inset:0;
  background:linear-gradient(105deg,transparent 30%,rgba(255,255,255,.30) 48%,transparent 66%);
  transform:translateX(-120%);transition:transform .9s var(--ease-out);
}
.btn--glass:hover::after{transform:translateX(120%)}
.btn--glass:hover{box-shadow:inset 0 1px 0 rgba(255,255,255,.38),inset 0 0 0 1px rgba(255,255,255,.20),0 18px 40px -18px rgba(0,0,0,1)}

.btn--ghost{
  background:transparent;
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.22);
  padding:11px 24px;
}
.btn--ghost:hover{background:rgba(255,255,255,.06);box-shadow:inset 0 0 0 1px rgba(255,255,255,.45)}

.btn--text{padding:14px 4px;color:var(--ink-3)}
.btn--text::before{
  content:'';position:absolute;left:4px;right:4px;bottom:10px;height:1px;background:currentColor;
  transform:scaleX(0);transform-origin:left;transition:transform .6s var(--ease-out);
}
.btn--text:hover{color:var(--ink-1)}
.btn--text:hover::before{transform:scaleX(1)}

.btn--sm{--pad-y:12px;--pad-x:20px;font-size:10px}
.btn--full{width:100%;margin-top:6px}

.btn:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible{
  outline:1px solid rgba(255,255,255,.6);outline-offset:3px;
}

/* =========================================================
   HEADER
   ========================================================= */
.header{
  position:fixed;top:0;left:0;right:0;z-index:50;
  transition:background .5s var(--ease),box-shadow .5s var(--ease),backdrop-filter .5s var(--ease);
}
.header.is-stuck{
  background:rgba(6,6,6,.55);
  -webkit-backdrop-filter:blur(22px) saturate(160%);backdrop-filter:blur(22px) saturate(160%);
  box-shadow:0 1px 0 rgba(255,255,255,.08),0 20px 40px -30px rgba(0,0,0,1);
}
.header__inner{
  max-width:var(--wrap);margin-inline:auto;padding:0 var(--pad);
  height:78px;display:flex;align-items:center;justify-content:space-between;gap:24px;
}

.brand{position:relative;z-index:2;display:inline-flex;gap:.5em;font-family:var(--f-display);font-size:15px;letter-spacing:.16em;color:#fff}
.brand__co{color:rgba(255,255,255,.62);font-weight:400}
.brand--sm{font-size:14px}

.nav{display:flex;align-items:center;gap:34px}
.nav__link{
  position:relative;font-size:10.5px;letter-spacing:.22em;text-transform:uppercase;color:var(--ink-3);
  padding:6px 0;transition:color .4s var(--ease);
}
.nav__link::after{
  content:'';position:absolute;left:0;right:0;bottom:0;height:1px;background:#fff;
  transform:scaleX(0);transform-origin:right;transition:transform .5s var(--ease-out);
}
.nav__link:hover,.nav__link.is-active{color:#fff}
.nav__link:hover::after,.nav__link.is-active::after{transform:scaleX(1);transform-origin:left}
.nav__link--btn{
  font-family:inherit;background:none;border:0;cursor:pointer;margin-left:6px;
}

.burger{
  position:relative;z-index:2;
  display:none;width:44px;height:44px;background:none;border:0;cursor:pointer;
  align-items:center;justify-content:center;flex-direction:column;gap:6px;margin-right:-10px;
}
.burger span{display:block;width:22px;height:1px;background:#fff;transition:transform .45s var(--ease-out),opacity .3s}
.burger[aria-expanded="true"] span:nth-child(1){transform:translateY(3.5px) rotate(45deg)}
.burger[aria-expanded="true"] span:nth-child(2){transform:translateY(-3.5px) rotate(-45deg)}

/* =========================================================
   SECTION DOTS
   ========================================================= */
.dots{
  position:fixed;right:22px;top:50%;transform:translateY(-50%);z-index:40;
  display:flex;flex-direction:column;gap:14px;
}
.dots__i{display:grid;place-items:center;width:16px;height:16px;position:relative}
.dots__i span{
  width:5px;height:5px;border-radius:50%;background:rgba(255,255,255,.28);
  transition:transform .5s var(--ease-out),background .4s var(--ease),box-shadow .4s var(--ease);
}
.dots__i:hover span{background:rgba(255,255,255,.6)}
.dots__i.is-active span{background:#fff;transform:scale(1.55);box-shadow:0 0 12px rgba(255,255,255,.7)}
.dots__i::after{
  content:attr(data-label);position:absolute;right:22px;top:50%;transform:translateY(-50%) translateX(6px);
  font-size:9px;letter-spacing:.2em;text-transform:uppercase;color:rgba(255,255,255,.6);
  white-space:nowrap;opacity:0;pointer-events:none;transition:opacity .4s var(--ease),transform .4s var(--ease-out);
}
.dots__i:hover::after{opacity:1;transform:translateY(-50%) translateX(0)}

/* =========================================================
   HERO
   ========================================================= */
.hero{
  position:relative;min-height:100svh;display:flex;align-items:center;
  padding:120px 0 90px;overflow:hidden;
}
.hero__rain{
  position:absolute;inset:0;width:100%;height:100%;z-index:0;
  -webkit-mask-image:radial-gradient(115% 95% at 62% 45%,#000 18%,rgba(0,0,0,.55) 52%,transparent 82%);
  mask-image:radial-gradient(115% 95% at 62% 45%,#000 18%,rgba(0,0,0,.55) 52%,transparent 82%);
  opacity:.85;
}
.hero__fade{
  position:absolute;inset:0;z-index:1;pointer-events:none;
  background:
    linear-gradient(to right,#000 18%,rgba(0,0,0,.90) 33%,rgba(0,0,0,.30) 52%,transparent 70%),
    linear-gradient(to bottom,rgba(0,0,0,.82),rgba(0,0,0,.15) 16%,transparent 30%,transparent 72%,#000 100%);
}
.hero__content{position:relative;z-index:3;width:100%;max-width:var(--wrap);margin-inline:auto;padding-inline:var(--pad)}

.hero__title{
  font-size:clamp(27px,4.15vw,52px);
  line-height:1.24;letter-spacing:.005em;margin:0 0 30px;
}
.hero__title span{display:block}
.hero__sub{max-width:44ch;font-size:clamp(14px,1.15vw,16px);color:var(--ink-2);margin:0 0 42px}
.hero__actions{display:flex;align-items:center;gap:26px;flex-wrap:wrap}

.hero__scroll{
  position:absolute;left:var(--pad);bottom:40px;z-index:3;
  display:flex;align-items:center;gap:12px;
  font-size:9px;letter-spacing:.34em;text-transform:uppercase;color:var(--ink-4);
}
.hero__scroll span{
  width:34px;height:1px;background:linear-gradient(to right,rgba(255,255,255,.7),transparent);
  animation:scrollLine 2.6s var(--ease) infinite;
}
@keyframes scrollLine{0%{transform:scaleX(.2);opacity:.2}45%{transform:scaleX(1);opacity:1}100%{transform:scaleX(.2);opacity:.2}}

/* ---------- LIQUID GLASS LENS ---------- */
.lens{
  position:absolute;z-index:2;
  top:50%;right:clamp(-90px,4vw,90px);
  width:clamp(330px,38vw,530px);aspect-ratio:1;border-radius:50%;
  transform:translate3d(0,-50%,0);
  animation:lensFloat 13s ease-in-out infinite;
  will-change:transform;
}
.lens__canvas{
  position:absolute;inset:0;width:100%;height:100%;border-radius:50%;
  -webkit-mask-image:radial-gradient(circle at 50% 50%,#000 80%,rgba(0,0,0,.72) 93%,transparent 100%);
  mask-image:radial-gradient(circle at 50% 50%,#000 80%,rgba(0,0,0,.72) 93%,transparent 100%);
  opacity:.95;
}
/* refraction body + specular */
.lens__spec{
  position:absolute;inset:0;border-radius:50%;pointer-events:none;
  background:
    radial-gradient(120% 120% at 30% 20%,rgba(255,255,255,.22) 0%,rgba(255,255,255,.05) 26%,transparent 52%),
    radial-gradient(90% 90% at 74% 82%,rgba(255,255,255,.10),transparent 46%),
    radial-gradient(circle at 50% 50%,transparent 52%,rgba(0,0,0,.45) 88%);
  box-shadow:
    inset 8px 10px 30px rgba(255,255,255,.14),
    inset -14px -18px 46px rgba(0,0,0,.7),
    inset 0 0 70px rgba(255,255,255,.05);
  mix-blend-mode:screen;
}
.lens__rim{
  position:absolute;inset:0;border-radius:50%;pointer-events:none;
  box-shadow:
    inset 0 0 0 1px rgba(255,255,255,.16),
    0 0 0 1px rgba(255,255,255,.06),
    0 60px 140px -40px rgba(0,0,0,1);
}
.lens__rim::after{
  content:'';position:absolute;inset:-1px;border-radius:50%;padding:1px;
  background:conic-gradient(from 210deg,rgba(255,255,255,.65),rgba(255,255,255,0) 28%,rgba(255,255,255,0) 62%,rgba(255,255,255,.42) 84%,rgba(255,255,255,.65));
  -webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);
  -webkit-mask-composite:xor;mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);
  mask-composite:exclude;
  animation:spin 26s linear infinite;
}
.lens__ring{
  position:absolute;border-radius:50%;pointer-events:none;
  border:1px solid rgba(255,255,255,.07);
}
.lens__ring--a{inset:-9%;animation:spin 44s linear infinite;border-style:solid;
  -webkit-mask-image:conic-gradient(from 0deg,#000 0deg 90deg,transparent 90deg 180deg,#000 180deg 250deg,transparent 250deg 360deg);
  mask-image:conic-gradient(from 0deg,#000 0deg 90deg,transparent 90deg 180deg,#000 180deg 250deg,transparent 250deg 360deg);}
.lens__ring--b{inset:-19%;border-color:rgba(255,255,255,.045);animation:spin 70s linear reverse infinite;
  -webkit-mask-image:conic-gradient(from 40deg,#000 0deg 40deg,transparent 40deg 140deg,#000 140deg 200deg,transparent 200deg 360deg);
  mask-image:conic-gradient(from 40deg,#000 0deg 40deg,transparent 40deg 140deg,#000 140deg 200deg,transparent 200deg 360deg);}

@keyframes spin{to{transform:rotate(360deg)}}
@keyframes lensFloat{
  0%,100%{transform:translate3d(0,-50%,0) scale(1)}
  50%{transform:translate3d(0,calc(-50% - 16px),0) scale(1.015)}
}

/* floating glass shards */
.shard{
  position:absolute;z-index:2;border-radius:20px;pointer-events:none;
  background:linear-gradient(150deg,rgba(255,255,255,.09),rgba(255,255,255,.015));
  -webkit-backdrop-filter:blur(14px) saturate(140%);backdrop-filter:blur(14px) saturate(140%);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.25),inset 0 0 0 1px rgba(255,255,255,.08),0 30px 60px -30px rgba(0,0,0,.9);
}
.shard--1{width:132px;height:86px;top:22%;right:34%;transform:rotate(-13deg);animation:float1 15s ease-in-out infinite}
.shard--2{width:92px;height:92px;bottom:19%;right:9%;border-radius:24px;transform:rotate(9deg);animation:float2 19s ease-in-out infinite}
@keyframes float1{0%,100%{transform:translateY(0) rotate(-13deg)}50%{transform:translateY(-26px) rotate(-8deg)}}
@keyframes float2{0%,100%{transform:translateY(0) rotate(9deg)}50%{transform:translateY(22px) rotate(4deg)}}

/* =========================================================
   SECTIONS
   ========================================================= */
.section{position:relative;padding:clamp(72px,9vw,124px) 0;border-top:1px solid var(--line)}
.section--about{overflow:hidden;padding-bottom:clamp(64px,7vw,104px)}

.about__lead{
  position:relative;z-index:2;max-width:52ch;margin:0 0 clamp(46px,5vw,70px);
  font-size:clamp(15px,1.35vw,18px);line-height:1.65;color:var(--ink-2);
}
.about__sep{
  position:relative;z-index:2;height:1px;margin:clamp(56px,6vw,86px) 0 clamp(44px,4.5vw,64px);
  background:linear-gradient(to right,rgba(255,255,255,.16),rgba(255,255,255,.02) 60%,transparent);
}

.grid{display:grid;gap:22px}
.grid--2{grid-template-columns:repeat(2,1fr)}
.grid--4{grid-template-columns:repeat(4,1fr)}

/* ---------- product cards ---------- */
.card{position:relative}
.card--product{min-height:270px;display:flex;align-items:center;overflow:hidden}
.card__viz{
  position:absolute;right:-4%;top:50%;transform:translateY(-50%);
  width:62%;height:110%;z-index:0;opacity:.92;pointer-events:none;
  -webkit-mask-image:radial-gradient(75% 75% at 55% 50%,#000 35%,transparent 78%);
  mask-image:radial-gradient(75% 75% at 55% 50%,#000 35%,transparent 78%);
  transition:opacity .6s var(--ease),transform .9s var(--ease-out);
}
.card--product:hover .card__viz{opacity:1;transform:translateY(-50%) scale(1.04)}
.card__body{position:relative;z-index:3;padding:clamp(28px,3.4vw,44px);max-width:60%}
.card__title{font-size:clamp(19px,1.85vw,25px);letter-spacing:.16em;text-transform:uppercase;margin-bottom:14px}
.card__claim{font-size:13px;color:var(--ink-1);margin:0 0 20px;letter-spacing:.02em}
.card__text{font-size:13px;color:var(--ink-3);margin:0 0 26px;max-width:34ch}
.card--product .card__text{margin-bottom:30px}

/* ---------- feature cards ---------- */
.card--feature{padding:30px 26px 32px}
.card--feature .card__text{margin:0}
.card__h{
  font-size:13px;letter-spacing:.16em;text-transform:uppercase;margin:0 0 14px;line-height:1.55;
}
.ico{
  position:relative;z-index:3;display:grid;place-items:center;width:44px;height:44px;margin-bottom:22px;
  border-radius:13px;color:#fff;
  background:linear-gradient(160deg,rgba(255,255,255,.12),rgba(255,255,255,.02));
  box-shadow:inset 0 1px 0 rgba(255,255,255,.28),inset 0 0 0 1px rgba(255,255,255,.09);
}
.ico svg{width:21px;height:21px}
.ico--sm{width:34px;height:34px;border-radius:10px;margin:0}
.ico--sm svg{width:16px;height:16px}

/* =========================================================
   CONTATTI
   ========================================================= */
.about__viz{
  position:absolute;inset:0;width:100%;height:100%;z-index:0;pointer-events:none;opacity:.8;
  -webkit-mask-image:radial-gradient(70% 60% at 50% 78%,#000 12%,transparent 76%);
  mask-image:radial-gradient(70% 60% at 50% 78%,#000 12%,transparent 76%);
}
.contact{position:relative;z-index:2;display:grid;grid-template-columns:1fr .82fr;gap:clamp(32px,6vw,84px);align-items:start}
.contact__title{
  font-size:clamp(17px,1.65vw,23px);line-height:1.5;letter-spacing:.03em;margin:0 0 38px;max-width:19ch;
}
.contact__list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:16px}
.contact__list li{display:flex;align-items:center;gap:14px;font-size:13.5px;color:var(--ink-2)}
.contact__list a{transition:color .35s var(--ease)}
.contact__list a:hover{color:#fff}

.contact__chat{margin:30px 0 0;font-size:13px;color:var(--ink-3)}
.link{
  position:relative;font:inherit;color:#fff;background:none;border:0;padding:0 0 2px;cursor:pointer;
  border-bottom:1px solid rgba(255,255,255,.35);transition:border-color .35s var(--ease);
}
.link:hover{border-color:#fff}

.contact__card{padding:clamp(28px,3vw,38px)}
.contact__cardTitle{
  position:relative;z-index:3;font-size:clamp(15px,1.35vw,19px);letter-spacing:.14em;
  text-transform:uppercase;margin:0 0 16px;
}
.contact__cardText{position:relative;z-index:3;font-size:13px;color:var(--ink-3);margin:0 0 28px}
.contact__cardNote{
  position:relative;z-index:3;margin:16px 0 0;text-align:center;
  font-size:9.5px;letter-spacing:.22em;text-transform:uppercase;color:var(--ink-4);
}
.contact__card .btn{position:relative;z-index:3}

.contact__form{padding:clamp(26px,3vw,36px)}
.field{margin-bottom:12px;position:relative;z-index:3}
.field input,.field textarea{
  width:100%;padding:14px 16px;border-radius:var(--r-sm);
  background:rgba(255,255,255,.03);
  border:1px solid rgba(255,255,255,.10);
  font-size:13px;font-weight:300;color:#fff;
  transition:border-color .4s var(--ease),background .4s var(--ease),box-shadow .4s var(--ease);
  resize:none;
}
.field input::placeholder,.field textarea::placeholder{color:rgba(255,255,255,.34)}
.field input:focus,.field textarea:focus{
  outline:none;background:rgba(255,255,255,.055);
  border-color:rgba(255,255,255,.40);
  box-shadow:0 0 0 3px rgba(255,255,255,.05);
}
.field.is-error input,.field.is-error textarea{border-color:rgba(255,255,255,.75)}
.contact__form .btn{position:relative;z-index:3}
.form__note{
  min-height:18px;margin:14px 0 0;font-size:11px;letter-spacing:.12em;text-transform:uppercase;
  color:var(--ink-3);position:relative;z-index:3;
}

/* =========================================================
   ASSISTENZA — chat
   ========================================================= */
.chat{position:fixed;inset:0;z-index:80}
.chat[hidden]{display:none}

.chat__scrim{
  position:absolute;inset:0;background:rgba(0,0,0,.74);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
  opacity:0;transition:opacity .5s var(--ease);
}
.chat.is-open .chat__scrim{opacity:1}

.chat__panel{
  position:absolute;top:22px;right:22px;bottom:22px;
  width:min(430px,calc(100vw - 44px));
  display:flex;flex-direction:column;overflow:hidden;
  border-radius:var(--r-lg);
  /* base scura sotto il vetro: la pagina non traspare nel testo */
  background:
    linear-gradient(158deg,rgba(255,255,255,.075) 0%,rgba(255,255,255,.02) 42%,rgba(255,255,255,.045) 100%),
    rgba(7,7,7,.94);
  -webkit-backdrop-filter:blur(30px) saturate(150%);backdrop-filter:blur(30px) saturate(150%);
  opacity:0;transform:translateX(26px) scale(.985);
  transition:opacity .55s var(--ease-out),transform .55s var(--ease-out);
}
.chat.is-open .chat__panel{opacity:1;transform:none}
.chat__panel:hover{transform:none}          /* neutralizza l'hover di .glass */

.chat__rain{
  position:absolute;inset:0;width:100%;height:100%;z-index:0;pointer-events:none;opacity:.22;
  -webkit-mask-image:linear-gradient(to bottom,#000,rgba(0,0,0,.35) 55%,transparent);
  mask-image:linear-gradient(to bottom,#000,rgba(0,0,0,.35) 55%,transparent);
}

.chat__head{
  position:relative;z-index:3;display:flex;align-items:flex-start;justify-content:space-between;gap:16px;
  padding:22px 22px 18px;border-bottom:1px solid rgba(255,255,255,.09);
}
.chat__who{display:flex;align-items:center;gap:13px;min-width:0}
.chat__title{
  margin:0;font-family:var(--f-display);font-size:12px;letter-spacing:.2em;text-transform:uppercase;color:#fff;
}

/* monogramma dell'assistente */
.chat__ava,.ava{
  display:grid;place-items:center;flex:none;border-radius:50%;color:#fff;
  font-family:var(--f-display);letter-spacing:0;
  background:linear-gradient(150deg,rgba(255,255,255,.22),rgba(255,255,255,.04));
  box-shadow:inset 0 1px 0 rgba(255,255,255,.4),inset 0 0 0 1px rgba(255,255,255,.14);
}
.chat__ava{width:38px;height:38px;font-size:13px}
.chat__ava[hidden]{display:none}
.ava{display:inline-grid;width:17px;height:17px;font-size:7.5px;margin-right:8px;vertical-align:-4px}
.chat__status{
  margin:8px 0 0;display:flex;align-items:center;gap:8px;
  font-size:10px;letter-spacing:.16em;text-transform:uppercase;color:var(--ink-4);
}
.chat__status i{
  width:5px;height:5px;border-radius:50%;background:#fff;
  box-shadow:0 0 10px rgba(255,255,255,.9);animation:pulse 2.4s var(--ease) infinite;
}
@keyframes pulse{0%,100%{opacity:.35;transform:scale(.8)}50%{opacity:1;transform:scale(1)}}

.chat__close{
  display:grid;place-items:center;width:34px;height:34px;flex:none;
  border-radius:10px;border:0;cursor:pointer;color:#fff;
  background:rgba(255,255,255,.05);
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.10);
  transition:background .35s var(--ease),box-shadow .35s var(--ease);
}
.chat__close svg{width:16px;height:16px}
.chat__close:hover{background:rgba(255,255,255,.12);box-shadow:inset 0 0 0 1px rgba(255,255,255,.28)}

.chat__log{
  position:relative;z-index:3;flex:1;overflow-y:auto;overscroll-behavior:contain;
  padding:22px;display:flex;flex-direction:column;gap:14px;
}
.chat__log::-webkit-scrollbar{width:6px}
.chat__log::-webkit-scrollbar-track{background:transparent}
.chat__log::-webkit-scrollbar-thumb{background:rgba(255,255,255,.16);border-radius:20px}

.msg{max-width:88%;display:flex;flex-direction:column;gap:6px}
.msg__meta{
  font-size:9px;letter-spacing:.22em;text-transform:uppercase;color:var(--ink-4);
}
.msg__body{
  padding:12px 15px;border-radius:14px;font-size:13px;line-height:1.65;
  white-space:pre-wrap;word-break:break-word;
}
.msg--bot .msg__body{
  font-family:'SFMono-Regular',ui-monospace,Menlo,Consolas,monospace;
  font-size:12.5px;letter-spacing:.01em;color:#fff;
  background:rgba(255,255,255,.045);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.14),inset 0 0 0 1px rgba(255,255,255,.08);
  border-top-left-radius:4px;
}
.msg--sys{max-width:100%}
.msg--sys .msg__body{
  padding:0;background:none;box-shadow:none;
  font-family:'SFMono-Regular',ui-monospace,Menlo,Consolas,monospace;
  font-size:10px;letter-spacing:.18em;text-transform:uppercase;color:var(--ink-4);
}

.msg--me{align-self:flex-end;align-items:flex-end}
.msg--me .msg__body{
  color:#000;background:linear-gradient(160deg,#fff,rgba(255,255,255,.86));
  border-top-right-radius:4px;
}
.msg__caret{
  display:inline-block;width:7px;height:13px;margin-left:2px;vertical-align:-2px;
  background:#fff;animation:caret 1s steps(2) infinite;
}
@keyframes caret{0%,100%{opacity:1}50%{opacity:0}}

.typing{display:flex;gap:5px;padding:14px 15px}
.typing i{
  width:5px;height:5px;border-radius:50%;background:rgba(255,255,255,.7);
  animation:typing 1.1s var(--ease) infinite;
}
.typing i:nth-child(2){animation-delay:.15s}
.typing i:nth-child(3){animation-delay:.3s}
@keyframes typing{0%,100%{opacity:.25;transform:translateY(0)}50%{opacity:1;transform:translateY(-3px)}}

.chat__chips{
  position:relative;z-index:3;display:flex;flex-wrap:wrap;gap:8px;
  padding:0 22px 16px;
}
.chip{
  font:inherit;font-size:11px;letter-spacing:.06em;color:var(--ink-2);
  padding:8px 13px;border-radius:20px;border:0;cursor:pointer;
  background:rgba(255,255,255,.04);
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.12);
  transition:color .3s var(--ease),background .3s var(--ease),box-shadow .3s var(--ease);
}
.chip:hover{color:#fff;background:rgba(255,255,255,.1);box-shadow:inset 0 0 0 1px rgba(255,255,255,.3)}

.chat__form{
  position:relative;z-index:3;display:flex;align-items:center;gap:10px;
  padding:16px 18px;border-top:1px solid rgba(255,255,255,.09);
  background:rgba(255,255,255,.02);
}
.chat__prompt{
  font-family:'SFMono-Regular',ui-monospace,Menlo,Consolas,monospace;
  font-size:14px;color:rgba(255,255,255,.55);
}
.chat__input{
  flex:1;min-width:0;background:none;border:0;outline:none;
  font-family:'SFMono-Regular',ui-monospace,Menlo,Consolas,monospace;
  font-size:13px;color:#fff;padding:6px 0;
}
.chat__input::placeholder{color:rgba(255,255,255,.3)}
/* il fuoco si legge sull'intera riga di input, non con un riquadro sul campo */
.chat__input:focus-visible{outline:none}
.chat__form:focus-within{background:rgba(255,255,255,.05);box-shadow:inset 0 1px 0 rgba(255,255,255,.14)}
.chat__form.is-busy{opacity:.5}
.chat__form.is-busy .chat__send{pointer-events:none}
.chat__input:disabled{cursor:default}
.chat__form:focus-within .chat__prompt{color:#fff}
.chat__send{
  display:grid;place-items:center;width:36px;height:36px;flex:none;
  border-radius:10px;border:0;cursor:pointer;color:#fff;
  background:linear-gradient(160deg,rgba(255,255,255,.14),rgba(255,255,255,.03));
  box-shadow:inset 0 1px 0 rgba(255,255,255,.26),inset 0 0 0 1px rgba(255,255,255,.10);
  transition:box-shadow .35s var(--ease),transform .35s var(--ease-out);
}
.chat__send svg{width:17px;height:17px}
.chat__send:hover{box-shadow:inset 0 1px 0 rgba(255,255,255,.4),inset 0 0 0 1px rgba(255,255,255,.26);transform:translateX(2px)}

@media (max-width:620px){
  .chat__panel{top:0;right:0;bottom:0;width:100%;border-radius:0}
  .chat__head{padding:18px 18px 16px}
  .chat__log{padding:18px}
  .chat__chips{padding:0 18px 14px}
}

/* =========================================================
   FOOTER
   ========================================================= */
.footer{border-top:1px solid var(--line);padding:44px 0 40px}
.footer__inner{display:flex;align-items:flex-end;justify-content:space-between;gap:26px;flex-wrap:wrap}
.footer__copy{margin:14px 0 0;font-size:11.5px;color:var(--ink-4);letter-spacing:.04em}
.footer__nav{display:flex;gap:30px}
.footer__nav a{font-size:10px;letter-spacing:.2em;text-transform:uppercase;color:var(--ink-4);transition:color .35s var(--ease)}
.footer__nav a:hover{color:#fff}

/* =========================================================
   REVEAL
   ========================================================= */
.reveal{opacity:0;transform:translateY(26px);transition:opacity 1s var(--ease-out),transform 1s var(--ease-out)}
.reveal.is-in{opacity:1;transform:none}

/* =========================================================
   RESPONSIVE
   ========================================================= */
@media (max-width:1080px){
  .grid--4{grid-template-columns:repeat(2,1fr)}
  .lens{right:-14%;opacity:.85}
  .shard--1{right:44%}
}

@media (max-width:900px){
  .dots{display:none}
  .contact{grid-template-columns:1fr}
  .card__body{max-width:70%}
}

@media (max-width:820px){
  .burger{display:flex}
  .nav{
    position:fixed;inset:0 0 auto;top:0;padding:104px var(--pad) 42px;
    flex-direction:column;align-items:flex-start;gap:6px;
    background:rgba(4,4,4,.82);
    -webkit-backdrop-filter:blur(26px) saturate(150%);backdrop-filter:blur(26px) saturate(150%);
    box-shadow:0 1px 0 rgba(255,255,255,.08);
    transform:translateY(-102%);transition:transform .65s var(--ease-out);
  }
  .nav.is-open{transform:none}
  .nav__link{font-size:14px;letter-spacing:.2em;padding:14px 0;width:100%}
  .nav__link--btn{margin:0;text-align:left}

  .hero{min-height:auto;padding:132px 0 72px}
  .hero__rain{-webkit-mask-image:radial-gradient(130% 80% at 60% 35%,#000 10%,transparent 78%);mask-image:radial-gradient(130% 80% at 60% 35%,#000 10%,transparent 78%);opacity:.6}
  .hero__fade{background:linear-gradient(to bottom,rgba(0,0,0,.7),rgba(0,0,0,.35) 40%,#000 100%)}
  .lens{top:16%;right:-44%;width:320px;opacity:.45}
  .shard--1{top:9%;right:6%;width:88px;height:58px}
  .shard--2{display:none}
  .hero__scroll{display:none}

  .grid--2{grid-template-columns:1fr}
  .card--product{min-height:auto}
  .card__viz{width:78%;opacity:.4;right:-14%}
  .card__body{max-width:100%}
  .footer__inner{flex-direction:column;align-items:flex-start}
}

@media (max-width:560px){
  .grid--4{grid-template-columns:1fr}
}

@media (max-width:520px){
  .hero__sub br{display:none}
  .hero__actions{gap:14px}
  .btn{--pad-x:20px}
  .footer__nav{flex-wrap:wrap;gap:16px 22px}
}

/* =========================================================
   MOTION / TOUCH
   ========================================================= */
@media (hover:none){
  .glass:hover{transform:none}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}
  .reveal{opacity:1;transform:none}
}