/* ==============================================================
   AIT GROUP — sito pubblico
   Palette e proporzioni derivate dal marchio aziendale.
   ============================================================== */
:root{
  --ink:#1F1E1C;
  --ink-900:#141412;
  --ink-800:#232421;
  --teal:#0E8A92;
  --teal-deep:#065F65;
  --teal-lit:#25AFB8;
  --grey:#5D5956;
  --grey-2:#8A8681;
  --paper:#F2F2F2;
  --paper-lit:#FAFAF9;
  --line:#DBDAD6;
  --line-dark:#33342F;
  --warn:#B4532F;

  --ff-display:"Archivo",system-ui,-apple-system,sans-serif;
  --ff-body:"IBM Plex Sans",system-ui,-apple-system,sans-serif;
  --ff-mono:"IBM Plex Mono",ui-monospace,monospace;

  --shell:min(1240px,100% - 3rem);
  --pad-section:clamp(4rem,8vw,7.5rem);
  --ease:cubic-bezier(.22,.61,.36,1);
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--paper);color:var(--ink);
  font-family:var(--ff-body);font-size:clamp(1rem,.97rem + .18vw,1.075rem);
  line-height:1.65;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
img,svg{display:block;max-width:100%}
a{color:inherit}
button{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--teal);outline-offset:3px}

/* ---------------- tipografia ---------------- */
.display{
  font-family:var(--ff-display);font-variation-settings:"wdth" 112,"wght" 700;
  text-transform:uppercase;letter-spacing:-.005em;line-height:.96;margin:0;text-wrap:balance;
}
.display em{font-style:normal;color:var(--teal-deep)}
.section--dark .display em,.hero--dark .display em{color:var(--teal-lit)}
h1.display{font-size:clamp(2.3rem,5.6vw,4.6rem)}
h2.display{font-size:clamp(1.9rem,4vw,3.2rem)}
h3{font-family:var(--ff-display);font-variation-settings:"wdth" 100,"wght" 620;font-size:1.22rem;line-height:1.22;margin:0;letter-spacing:-.01em}
p{margin:0 0 1.1em}
p:last-child{margin-bottom:0}
.lead{font-size:clamp(1.05rem,1rem + .45vw,1.3rem);line-height:1.5}
.muted{color:var(--grey)}
.section--dark .muted,.hero--dark .muted{color:var(--grey-2)}

.eyebrow{
  font-family:var(--ff-mono);font-size:.72rem;font-weight:500;letter-spacing:.16em;
  text-transform:uppercase;color:var(--grey);margin:0 0 1.3rem;
  display:flex;align-items:center;gap:.7rem;
}
.eyebrow::before{content:"";width:9px;height:16px;flex:none;background:var(--teal);clip-path:polygon(50% 0,100% 100%,0 100%)}
.section--dark .eyebrow,.hero--dark .eyebrow{color:var(--grey-2)}
.section--dark .eyebrow::before,.hero--dark .eyebrow::before{background:var(--teal-lit)}

/* ---------------- struttura ---------------- */
.shell{width:var(--shell);margin-inline:auto}
.section{padding-block:var(--pad-section);position:relative}
.section--tight{padding-block:clamp(3rem,5.5vw,4.5rem)}
/* Fra due sezioni dello stesso colore il doppio margine è troppo:
   senza stacco cromatico basta metà spazio. */
.section:not(.section--dark) + .section:not(.section--dark){padding-top:calc(var(--pad-section) * .5)}
.section--dark + .section--dark{padding-top:calc(var(--pad-section) * .5)}
.section--dark{background:var(--ink-900);color:var(--paper)}
.section-head{max-width:58ch;margin-bottom:clamp(2.2rem,4.5vw,3.6rem)}
.section-head h2{margin-bottom:1.2rem}
.section-head .lead{color:var(--grey);max-width:54ch}
.section--dark .section-head .lead{color:var(--grey-2)}

/* ---------------- pulsanti ---------------- */
.btn{
  --btn-bg:var(--ink);--btn-fg:var(--paper);
  display:inline-flex;align-items:center;gap:.65rem;
  background:var(--btn-bg);color:var(--btn-fg);
  padding:.95rem 1.5rem;border:1px solid var(--btn-bg);border-radius:0;
  font-family:var(--ff-mono);font-size:.8rem;font-weight:500;letter-spacing:.09em;
  text-transform:uppercase;text-decoration:none;cursor:pointer;
  transition:background .25s var(--ease),color .25s var(--ease),border-color .25s var(--ease),transform .25s var(--ease);
}
.btn:hover{--btn-bg:var(--teal-deep);transform:translateY(-2px)}
.btn__arrow{transition:transform .25s var(--ease)}
.btn:hover .btn__arrow{transform:translateX(4px)}
.btn--ghost{--btn-bg:transparent;--btn-fg:var(--ink);border-color:var(--ink)}
.btn--ghost:hover{--btn-bg:var(--ink);--btn-fg:var(--paper)}
.section--dark .btn--ghost,.hero--dark .btn--ghost{--btn-fg:var(--paper);border-color:#4A4B45}
.section--dark .btn--ghost:hover,.hero--dark .btn--ghost:hover{--btn-bg:var(--paper);--btn-fg:var(--ink);border-color:var(--paper)}
.btn--teal{--btn-bg:var(--teal-deep);border-color:var(--teal-deep)}
.btn--teal:hover{--btn-bg:var(--teal);border-color:var(--teal)}
.btn--sm{padding:.65rem 1.05rem;font-size:.72rem}

/* ---------------- intestazione ---------------- */
.header{
  position:sticky;top:0;z-index:60;background:rgba(242,242,242,.88);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid transparent;transition:border-color .3s var(--ease);
}
.header.is-stuck{border-bottom-color:var(--line)}
.header__inner{display:flex;align-items:center;gap:2rem;height:clamp(64px,7vw,82px)}
.brand{display:flex;align-items:center;text-decoration:none;flex:none}
.brand svg{width:clamp(118px,13vw,156px);height:auto}
.nav{margin-left:auto;display:flex;align-items:center;gap:clamp(1rem,2.2vw,2rem)}
.nav a{
  font-family:var(--ff-mono);font-size:.78rem;letter-spacing:.07em;text-transform:uppercase;
  text-decoration:none;color:var(--ink);position:relative;padding-block:.4rem;white-space:nowrap;
}
.nav a::after{content:"";position:absolute;left:0;bottom:0;width:100%;height:2px;background:var(--teal);transform:scaleX(0);transform-origin:left;transition:transform .3s var(--ease)}
.nav a:hover::after,.nav a:focus-visible::after,.nav a[aria-current="page"]::after{transform:scaleX(1)}
.nav .btn{padding:.72rem 1.15rem;color:var(--btn-fg)}
.nav .btn::after{display:none}
.burger{display:none;margin-left:auto;background:none;border:1px solid var(--line);width:46px;height:46px;align-items:center;justify-content:center;cursor:pointer}
.burger span{display:block;width:20px;height:1.5px;background:var(--ink);position:relative;transition:background .2s}
.burger span::before,.burger span::after{content:"";position:absolute;left:0;width:20px;height:1.5px;background:var(--ink);transition:transform .3s var(--ease),top .3s var(--ease)}
.burger span::before{top:-6px}.burger span::after{top:6px}
.burger[aria-expanded="true"] span{background:transparent}
.burger[aria-expanded="true"] span::before{top:0;transform:rotate(45deg)}
.burger[aria-expanded="true"] span::after{top:0;transform:rotate(-45deg)}

.skip{position:absolute;left:-9999px;top:0;background:var(--ink);color:var(--paper);padding:.8rem 1.2rem;z-index:100}
.skip:focus{left:1rem;top:1rem}

/* ---------------- hero ---------------- */
.hero{position:relative;padding-top:clamp(2.6rem,6vw,5rem);overflow:hidden}
.hero--dark{background:var(--ink-900);color:var(--paper);padding-bottom:clamp(2.5rem,5vw,4rem)}
.hero__grid{display:grid;grid-template-columns:minmax(0,1.55fr) minmax(0,.85fr);gap:clamp(2rem,5vw,4.5rem);align-items:end}
.hero--simple .hero__grid{grid-template-columns:minmax(0,1fr);align-items:start}
.hero h1{margin-bottom:1.5rem}
.hero__lead{max-width:50ch;color:var(--grey)}
.hero--dark .hero__lead{color:var(--grey-2)}
.hero__actions{display:flex;flex-wrap:wrap;gap:.85rem;margin-top:2rem}
.hero__side{border-left:1px solid var(--line);padding-left:clamp(1.2rem,2.4vw,2rem);padding-bottom:.4rem}
.hero__side dl{margin:0;display:grid;gap:1.3rem}
.hero__side dt{font-family:var(--ff-mono);font-size:.68rem;letter-spacing:.14em;text-transform:uppercase;color:var(--grey);margin-bottom:.25rem}
.hero__side dd{margin:0;font-family:var(--ff-display);font-variation-settings:"wdth" 100,"wght" 600;font-size:1rem;line-height:1.3}

/* briciole di pane */
.crumbs{font-family:var(--ff-mono);font-size:.72rem;letter-spacing:.08em;text-transform:uppercase;color:var(--grey);margin:0 0 1.6rem;display:flex;flex-wrap:wrap;gap:.5rem}
.crumbs a{text-decoration:none;color:var(--grey)}
.crumbs a:hover{color:var(--teal-deep)}
.crumbs span[aria-hidden]{opacity:.5}

/* campo di guglie — elemento firma */
.needlefield__wrap{position:relative}
.needlefield__wrap::after{content:"";position:absolute;left:0;right:0;bottom:0;height:1px;background:var(--ink);opacity:.9}
.needlefield{width:100%;height:clamp(110px,16vw,196px);margin-top:clamp(2.2rem,4.5vw,3.6rem);display:block}
.needlefield polygon{fill:var(--ink);transform-origin:50% 100%;transform-box:fill-box;transform:scaleY(.04);opacity:0}
.needlefield polygon.n-teal{fill:var(--teal)}
.is-ready .needlefield polygon{animation:needle-rise .95s var(--ease) forwards}
@keyframes needle-rise{0%{transform:scaleY(.04);opacity:0}60%{opacity:1}100%{transform:scaleY(1);opacity:1}}
.hero--dark .needlefield polygon{fill:var(--paper)}
.hero--dark .needlefield polygon.n-teal{fill:var(--teal-lit)}
.hero--dark .needlefield__wrap::after{background:var(--line-dark);opacity:1}

/* riga di guglie decorativa, versione compatta */
.needlerule{display:flex;align-items:flex-end;gap:4px;height:22px;margin-bottom:1.4rem}
.needlerule i{display:block;width:8px;background:var(--ink);clip-path:polygon(50% 0,100% 100%,0 100%)}
.needlerule i.t{background:var(--teal)}

/* ---------------- blocco: servizi ---------------- */
.services{display:grid;grid-template-columns:repeat(6,1fr);gap:1px;background:var(--line);border:1px solid var(--line)}
.svc{grid-column:span 2;background:var(--paper-lit);padding:clamp(1.7rem,2.8vw,2.5rem);display:flex;flex-direction:column;gap:.95rem;text-decoration:none;color:inherit;transition:background .3s var(--ease)}
.services--wide .svc:nth-child(4),.services--wide .svc:nth-child(5){grid-column:span 3}
.svc:hover{background:#fff}
.svc__mark{display:flex;align-items:flex-end;gap:3px;height:26px}
.svc__mark i{display:block;width:7px;background:var(--ink);clip-path:polygon(50% 0,100% 100%,0 100%);transition:height .35s var(--ease)}
.svc__mark i.t{background:var(--teal)}
.svc:hover .svc__mark i:nth-child(2){height:100%!important}
.svc p{color:var(--grey);font-size:.97rem}
.svc__tags{margin:auto 0 0;padding:.55rem 0 0;list-style:none;display:flex;flex-wrap:wrap;gap:.4rem}
.svc__tags li{font-family:var(--ff-mono);font-size:.7rem;letter-spacing:.05em;text-transform:uppercase;color:var(--grey);border:1px solid var(--line);padding:.3rem .55rem}
.svc__more{font-family:var(--ff-mono);font-size:.73rem;letter-spacing:.09em;text-transform:uppercase;color:var(--teal-deep);display:flex;align-items:center;gap:.45rem}
.svc:hover .svc__more span{transform:translateX(4px)}
.svc__more span{transition:transform .25s var(--ease)}

/* ---------------- blocco: specifiche ---------------- */
.refurb__grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.05fr);gap:clamp(2.4rem,5.5vw,5rem);align-items:start}
.spec{border-top:1px solid var(--line)}
.section--dark .spec{border-top-color:var(--line-dark)}
.spec__row{display:grid;grid-template-columns:clamp(5.5rem,12vw,8.5rem) 1fr;gap:clamp(1rem,3vw,2.2rem);padding:1.3rem 0;border-bottom:1px solid var(--line);align-items:baseline}
.section--dark .spec__row{border-bottom-color:var(--line-dark)}
.spec__k{font-family:var(--ff-mono);font-size:.72rem;letter-spacing:.12em;color:var(--teal-deep);white-space:nowrap}
.section--dark .spec__k{color:var(--teal-lit)}
.spec__v strong{display:block;font-family:var(--ff-display);font-variation-settings:"wdth" 100,"wght" 600;font-size:1.03rem;font-weight:400;margin-bottom:.2rem}
.spec__v span{color:var(--grey);font-size:.94rem}
.section--dark .spec__v span{color:var(--grey-2)}
.note{margin-top:1.9rem;border-left:2px solid var(--teal);padding:.2rem 0 .2rem 1.1rem;color:var(--grey);font-size:.95rem}
.section--dark .note{border-left-color:var(--teal-lit);color:var(--grey-2)}

/* ---------------- blocco: passi ---------------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border-block:1px solid var(--line)}
.step{background:var(--paper);padding:clamp(1.6rem,2.8vw,2.3rem) clamp(1.2rem,2vw,1.7rem);position:relative;transition:background .3s var(--ease)}
.step:hover{background:var(--paper-lit)}
.step__n{font-family:var(--ff-mono);font-size:.72rem;letter-spacing:.14em;color:var(--teal-deep);display:block;margin-bottom:2.2rem}
.step h3{margin-bottom:.55rem}
.step p{color:var(--grey);font-size:.94rem}
.step::before{content:"";position:absolute;top:0;left:0;height:2px;width:0;background:var(--teal);transition:width .5s var(--ease)}
.step:hover::before{width:100%}

/* ---------------- blocco: colonne ---------------- */
.cols{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:clamp(1.6rem,3vw,2.6rem)}
.cols__item{border-top:2px solid var(--ink);padding-top:1.05rem}
.section--dark .cols__item{border-top-color:var(--teal-lit)}
.cols__item h3{margin-bottom:.5rem}
.cols__item p{color:var(--grey);font-size:.95rem}
.section--dark .cols__item p{color:var(--grey-2)}

/* ---------------- blocco: dati ---------------- */
.stock{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:var(--line);border:1px solid var(--line);margin-top:2rem}
.section--dark .stock{background:var(--line-dark);border-color:var(--line-dark)}
.stock div{background:var(--paper-lit);padding:1.05rem 1.15rem}
.section--dark .stock div{background:var(--ink-900)}
.stock dt{font-family:var(--ff-mono);font-size:.68rem;letter-spacing:.12em;text-transform:uppercase;color:var(--grey);margin-bottom:.3rem}
.section--dark .stock dt{color:var(--grey-2)}
.stock dd{margin:0;font-family:var(--ff-display);font-variation-settings:"wdth" 100,"wght" 600;font-size:.97rem}

/* ---------------- blocco: settori ---------------- */
.sectors{display:flex;flex-wrap:wrap;gap:.6rem}
.sectors span{font-family:var(--ff-mono);font-size:.76rem;letter-spacing:.06em;text-transform:uppercase;border:1px solid var(--line);padding:.55rem .9rem;color:var(--grey)}
.section--dark .sectors span{border-color:var(--line-dark);color:var(--grey-2)}

/* ---------------- blocco: testo ---------------- */
.prose{max-width:70ch}
.prose h2{font-family:var(--ff-display);font-variation-settings:"wdth" 105,"wght" 650;font-size:clamp(1.4rem,2.4vw,1.9rem);text-transform:uppercase;letter-spacing:-.005em;line-height:1.1;margin:2.4rem 0 1rem}
.prose h2:first-child{margin-top:0}
.prose h3{margin:1.9rem 0 .7rem}
.prose ul,.prose ol{padding-left:1.15rem;margin:0 0 1.2rem}
.prose li{margin-bottom:.5rem}
.prose li::marker{color:var(--teal-deep)}
.prose a{color:var(--teal-deep);text-underline-offset:3px}
.prose blockquote{margin:1.5rem 0;border-left:2px solid var(--teal);padding-left:1.1rem;color:var(--grey)}
.prose code{font-family:var(--ff-mono);font-size:.9em;background:#E7E6E2;padding:.1em .35em}
.prose hr{border:0;border-top:1px solid var(--line);margin:2.2rem 0}
.section--dark .prose code{background:var(--ink-800)}

/* ---------------- blocco: faq ---------------- */
.faq{border-top:1px solid var(--line);max-width:80ch}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{cursor:pointer;list-style:none;padding:1.35rem 2.5rem 1.35rem 0;position:relative;font-family:var(--ff-display);font-variation-settings:"wdth" 100,"wght" 600;font-size:1.06rem}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"";position:absolute;right:.4rem;top:50%;width:11px;height:11px;border-right:1.5px solid var(--teal-deep);border-bottom:1.5px solid var(--teal-deep);transform:translateY(-70%) rotate(45deg);transition:transform .3s var(--ease)}
.faq details[open] summary::after{transform:translateY(-30%) rotate(-135deg)}
.faq__answer{padding:0 0 1.5rem;color:var(--grey);max-width:72ch}
.section--dark .faq{border-top-color:var(--line-dark)}
.section--dark .faq details{border-bottom-color:var(--line-dark)}
.section--dark .faq__answer{color:var(--grey-2)}

/* ---------------- blocco: cta ---------------- */
.cta__box{display:grid;grid-template-columns:minmax(0,1.3fr) auto;gap:clamp(1.5rem,4vw,3rem);align-items:end}
.cta__box h2{margin-bottom:1rem}

/* ---------------- catalogo ---------------- */
.catalog__bar{display:flex;flex-wrap:wrap;gap:1rem;align-items:center;justify-content:space-between;margin-bottom:2rem;padding-bottom:1.4rem;border-bottom:1px solid var(--line)}
.filters{display:flex;flex-wrap:wrap;gap:.5rem}
.filters a{font-family:var(--ff-mono);font-size:.73rem;letter-spacing:.06em;text-transform:uppercase;text-decoration:none;border:1px solid var(--line);padding:.5rem .85rem;color:var(--grey);transition:all .25s var(--ease)}
.filters a:hover{border-color:var(--ink);color:var(--ink)}
.filters a.is-active{background:var(--ink);border-color:var(--ink);color:var(--paper)}
.searchbox{display:flex;gap:0}
.searchbox input{border:1px solid var(--line);background:#fff;padding:.6rem .8rem;font-family:var(--ff-body);font-size:.9rem;min-width:190px;border-radius:0}
.searchbox input:focus{outline:none;border-color:var(--teal)}
.searchbox button{border:1px solid var(--ink);border-left:0;background:var(--ink);color:var(--paper);padding:.6rem 1rem;font-family:var(--ff-mono);font-size:.72rem;letter-spacing:.08em;text-transform:uppercase;cursor:pointer}

.grid-products{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:1px;background:var(--line);border:1px solid var(--line)}
.card{background:var(--paper-lit);padding:clamp(1.4rem,2.4vw,1.9rem);display:flex;flex-direction:column;gap:.8rem;text-decoration:none;color:inherit;transition:background .3s var(--ease)}
.card:hover{background:#fff}
.card__top{display:flex;align-items:center;justify-content:space-between;gap:1rem}
.card__cat{font-family:var(--ff-mono);font-size:.68rem;letter-spacing:.12em;text-transform:uppercase;color:var(--grey)}
/* Riquadro della foto. Il colore e il modo di adattare l'immagine arrivano
   dalle impostazioni del pannello (variabili definite nell'intestazione). */
.card__img{
  position:relative;aspect-ratio:4/3;overflow:hidden;
  background:var(--foto-sfondo,#fff);
  display:flex;align-items:center;justify-content:center;
  border:1px solid var(--line);
}
.card__img--empty{background:linear-gradient(180deg,#F4F3F1,#E9E8E4);border-style:dashed}
.card__foto{
  position:absolute;inset:0;
  background-position:center;background-repeat:no-repeat;
  background-size:var(--foto-adatta,contain);
  opacity:0;transition:opacity .45s var(--ease);
}
.card__foto.is-in{opacity:1}

/* Pallini di avanzamento, visibili solo mentre le foto si alternano. */
.card__punti{position:absolute;left:0;right:0;bottom:.5rem;display:flex;gap:4px;justify-content:center;opacity:0;transition:opacity .3s var(--ease)}
.card__img--scorre:hover .card__punti,.card:focus-visible .card__punti{opacity:1}
.card__punti i{display:block;width:14px;height:2px;background:var(--ink);opacity:.22;transition:opacity .3s var(--ease)}
.card__punti i.is-in{opacity:.85}
.card h3{font-size:1.05rem;line-height:1.25}
.card p{color:var(--grey);font-size:.92rem;margin:0}
.card__foot{margin-top:auto;padding-top:.9rem;border-top:1px solid var(--line);display:flex;align-items:baseline;justify-content:space-between;gap:1rem}
.price{font-family:var(--ff-display);font-variation-settings:"wdth" 100,"wght" 700;font-size:1.35rem}
.price small{font-family:var(--ff-mono);font-size:.62rem;letter-spacing:.1em;text-transform:uppercase;color:var(--grey);display:block;font-weight:400}
.badge{font-family:var(--ff-mono);font-size:.66rem;letter-spacing:.1em;text-transform:uppercase;padding:.25rem .5rem;border:1px solid currentColor}
.badge--ok{color:var(--teal-deep)}
.badge--low{color:var(--warn)}
.badge--out{color:var(--grey)}
.empty{border:1px dashed var(--line);padding:clamp(2rem,5vw,3.5rem);text-align:center;color:var(--grey)}

/* scheda prodotto */
.product__grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:clamp(2rem,5vw,4rem);align-items:start}
.product__media{
  background-color:var(--foto-sfondo,#fff);
  aspect-ratio:4/3;
  background-size:var(--foto-adatta,contain);
  background-position:center;background-repeat:no-repeat;
  border:1px solid var(--line);
  transition:background-image .3s var(--ease);
}
/* Miniature sotto la foto grande. */
.product__miniature{display:flex;gap:.5rem;margin-top:.6rem;flex-wrap:wrap}
.miniatura{
  width:72px;height:56px;flex:none;cursor:pointer;padding:0;
  border:1px solid var(--line);background-color:var(--foto-sfondo,#fff);
  background-size:contain;background-position:center;background-repeat:no-repeat;
  opacity:.65;transition:opacity .25s var(--ease),border-color .25s var(--ease);
}
.miniatura:hover{opacity:1}
.miniatura.is-in{opacity:1;border-color:var(--teal);border-width:2px}
.product__meta{display:flex;flex-wrap:wrap;gap:.5rem;margin-bottom:1.4rem}
.spectable{width:100%;border-collapse:collapse;margin-top:1.6rem}
.spectable th,.spectable td{text-align:left;padding:.85rem 0;border-bottom:1px solid var(--line);vertical-align:top;font-size:.96rem}
.spectable th{font-family:var(--ff-mono);font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;color:var(--grey);font-weight:500;width:38%;padding-right:1rem}
.buybox{border:1px solid var(--line);background:var(--paper-lit);padding:clamp(1.3rem,2.5vw,1.8rem);margin-top:1.8rem}
.buybox .price{font-size:2rem;margin-bottom:.4rem}

/* ---------------- modulo contatti ---------------- */
.contact__grid{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:clamp(2.4rem,5.5vw,5rem)}
.contact__info a{color:inherit;text-decoration:none;border-bottom:1px solid var(--line);transition:border-color .25s,color .25s}
.section--dark .contact__info a{border-bottom-color:#45463F}
.contact__info a:hover{color:var(--teal-lit);border-color:var(--teal-lit)}
.info-row{padding:1.15rem 0;border-bottom:1px solid var(--line-dark)}
.info-row:first-of-type{border-top:1px solid var(--line-dark)}
.info-row dt{font-family:var(--ff-mono);font-size:.68rem;letter-spacing:.14em;text-transform:uppercase;color:var(--grey-2);margin-bottom:.3rem}
.info-row dd{margin:0;font-size:1.02rem}

/* ---------------- campi dei moduli ----------------
   Questi stili erano scritti per il modulo dei contatti, che sta su fondo
   scuro: testo bianco e bordo scuro. Quando è nato il calcolatore, che sta su
   fondo chiaro, i valori digitati sono diventati bianchi su bianco — cioè
   invisibili.
   Il colore ora segue lo sfondo su cui il campo si trova davvero: scuro
   com'è il resto del testo sulle pagine chiare, chiaro dentro le sezioni
   scure. Vale per qualsiasi modulo, anche quelli che verranno. */
.field{margin-bottom:1.05rem}
.field label{display:block;font-family:var(--ff-mono);font-size:.7rem;letter-spacing:.12em;text-transform:uppercase;color:var(--grey);margin-bottom:.45rem}
.field input,.field select,.field textarea{
  width:100%;background-color:#fff;border:1px solid var(--line);color:var(--ink);
  padding:.85rem .95rem;font-family:var(--ff-body);font-size:1rem;border-radius:0;
  transition:border-color .25s var(--ease),background .25s var(--ease);
}
.field small{display:block;color:var(--grey);font-size:.82rem;margin-top:.35rem;line-height:1.45}
.field input::placeholder,.field textarea::placeholder{color:var(--grey-2)}
.field textarea{min-height:130px;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--teal);background-color:#fff;
  box-shadow:0 0 0 3px rgba(14,138,146,.14)}
.field select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--grey) 50%),linear-gradient(135deg,var(--grey) 50%,transparent 50%);background-position:calc(100% - 18px) 50%,calc(100% - 12px) 50%;background-size:6px 6px;background-repeat:no-repeat}

/* Dentro una sezione scura si torna al contrasto opposto. */
.section--dark .field label{color:var(--grey-2)}
.section--dark .field input,.section--dark .field select,.section--dark .field textarea{
  background-color:transparent;border-color:var(--line-dark);color:var(--paper)}
.section--dark .field small{color:var(--grey-2)}
.section--dark .field input:focus,.section--dark .field select:focus,.section--dark .field textarea:focus{
  border-color:var(--teal-lit);background-color:rgba(37,175,184,.06);box-shadow:none}
.section--dark .field select{background-image:linear-gradient(45deg,transparent 50%,var(--grey-2) 50%),linear-gradient(135deg,var(--grey-2) 50%,transparent 50%)}
.section--dark .field select option{background:var(--ink-900);color:var(--paper)}
.field--error input,.field--error select,.field--error textarea{border-color:#E8836B}
.field__error{display:block;font-family:var(--ff-mono);font-size:.72rem;color:#E8836B;margin-top:.4rem;letter-spacing:.03em;text-transform:none}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:1.05rem}
.privacy{display:flex;gap:.65rem;align-items:flex-start;font-size:.85rem;color:var(--grey);margin:1.1rem 0 1.5rem}
.section--dark .privacy{color:var(--grey-2)}
.privacy input{width:16px;height:16px;margin-top:.25rem;accent-color:var(--teal);flex:none}
.privacy a{color:var(--grey)}
.section--dark .privacy a{color:var(--grey-2)}
/* Il consenso facoltativo è visivamente distinto da quello obbligatorio:
   deve leggersi come una scelta in più, non come un secondo requisito. */
.privacy--opt{margin:-.6rem 0 1.5rem;padding-left:.9rem;border-left:1px solid var(--line)}
.section--dark .privacy--opt{border-left-color:var(--line-dark)}
.honeypot{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.sent{border:1px solid var(--teal-lit);background:rgba(37,175,184,.08);padding:1.5rem;margin-bottom:1.6rem}
.sent strong{display:block;font-family:var(--ff-display);font-variation-settings:"wdth" 100,"wght" 650;margin-bottom:.4rem}

/* ---------------- articolo allegato a una richiesta ----------------
   Compare sopra il modulo quando si arriva da una scheda del catalogo.
   Vive su fondo scuro, quindi il bordo è chiaro e la foto sta su un
   quadrato bianco: le foto dei prodotti hanno quasi sempre lo sfondo
   bianco e su fondo scuro sembrerebbero ritagliate male. */
.richiesta-art{display:flex;gap:1.1rem;align-items:center;border:1px solid var(--line-dark);
  background:rgba(242,242,242,.04);padding:1rem;margin-bottom:1.6rem}
.richiesta-art__foto{flex:0 0 76px;width:76px;height:76px;background:#fff;
  background-size:contain;background-position:center;background-repeat:no-repeat;border:1px solid var(--line-dark)}
.richiesta-art__foto--vuota{background:
  repeating-linear-gradient(45deg,var(--ink-800),var(--ink-800) 6px,var(--ink-900) 6px,var(--ink-900) 12px)}
.richiesta-art__testo{min-width:0;display:grid;gap:.22rem}
.richiesta-art__testo .eyebrow{margin:0;color:var(--teal-lit)}
.richiesta-art__testo strong{font-family:var(--ff-display);font-variation-settings:"wdth" 100,"wght" 650;
  font-size:1.02rem;line-height:1.3;color:var(--paper)}
.richiesta-art__testo span{font-size:.86rem;color:var(--grey-2)}
.richiesta-art__testo a{font-size:.82rem;color:var(--teal-lit);text-decoration:underline;justify-self:start}
@media(max-width:520px){
  .richiesta-art{gap:.85rem;padding:.8rem}
  .richiesta-art__foto{flex-basis:58px;width:58px;height:58px}
}

/* ---------------- piè di pagina ---------------- */
.footer{background:var(--ink-900);border-top:1px solid var(--line-dark);color:var(--paper);padding-block:clamp(3rem,5vw,4.5rem) 2rem}
.footer__top{display:grid;grid-template-columns:minmax(0,1.15fr) repeat(3,minmax(0,.65fr));gap:clamp(1.8rem,3.5vw,3rem);padding-bottom:2.6rem;border-bottom:1px solid var(--line-dark)}
.footer__brand svg{width:186px;height:auto;margin-bottom:1.2rem}
.footer__brand p{color:var(--grey-2);font-size:.94rem;max-width:38ch}
.footer h4{font-family:var(--ff-mono);font-size:.7rem;letter-spacing:.14em;text-transform:uppercase;color:var(--grey-2);margin:0 0 1.05rem;font-weight:500}
.footer ul{list-style:none;margin:0;padding:0;display:grid;gap:.55rem}
.footer a{color:var(--paper);text-decoration:none;font-size:.94rem;transition:color .25s}
.footer a:hover{color:var(--teal-lit)}
.footer__contact{color:var(--grey-2);font-size:.94rem;display:grid;gap:.55rem}
.footer__contact a{color:var(--paper)}
.footer__bottom{display:flex;flex-wrap:wrap;gap:.8rem 2rem;justify-content:space-between;padding-top:1.5rem;font-family:var(--ff-mono);font-size:.72rem;letter-spacing:.05em;color:var(--grey-2)}
.footer__bottom a{font-size:.72rem;color:var(--grey-2)}
.footer__legal{display:flex;gap:1.2rem;flex-wrap:wrap}

/* ---------------- pagine di servizio ---------------- */
.center-page{min-height:62vh;display:flex;align-items:center;text-align:left}
.center-page .display{margin-bottom:1.2rem}

/* ---------------- logo ---------------- */
.ait-ink{fill:var(--ink)}.ait-grey{fill:var(--grey)}.ait-teal{fill:var(--teal)}.ait-deep{fill:var(--teal-deep)}
.on-dark .ait-ink{fill:var(--paper)}.on-dark .ait-grey{fill:var(--grey-2)}.on-dark .ait-teal{fill:var(--teal-lit)}.on-dark .ait-deep{fill:var(--teal)}

/* ---------------- comparsa progressiva ---------------- */
.reveal{opacity:0;transform:translateY(20px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
.reveal.is-in{opacity:1;transform:none}

/* ---------------- adattamento ---------------- */
@media (max-width:1000px){
  .hero__grid{grid-template-columns:1fr;align-items:start}
  .hero__side{border-left:0;border-top:1px solid var(--line);padding-left:0;padding-top:1.7rem}
  .hero--dark .hero__side{border-top-color:var(--line-dark)}
  .hero__side dl{grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:1.4rem}
  .services{grid-template-columns:repeat(2,1fr)}
  .svc,.services--wide .svc:nth-child(4),.services--wide .svc:nth-child(5){grid-column:span 1}
  .steps{grid-template-columns:repeat(2,1fr)}
  .refurb__grid,.contact__grid,.product__grid,.cta__box{grid-template-columns:1fr}
  .cta__box{align-items:start}
  .footer__top{grid-template-columns:1fr 1fr}
  .footer__brand{grid-column:1 / -1}
}
@media (max-width:720px){
  :root{--shell:min(1240px,100% - 2.5rem)}
  .burger{display:flex}
  /* Menu a discesa ancorato all'intestazione. Non usiamo position:fixed
     perché il backdrop-filter dell'header ne limiterebbe l'altezza. */
  .nav{
    position:absolute;top:100%;left:0;right:0;background:var(--paper);
    flex-direction:column;align-items:stretch;gap:0;padding:1rem 1.25rem 2rem;
    border-top:1px solid var(--line);box-shadow:0 18px 30px -18px rgba(20,20,18,.35);
    transform:translateY(-8px);opacity:0;pointer-events:none;
    transition:opacity .25s var(--ease),transform .25s var(--ease);
    max-height:calc(100dvh - var(--header-h, 70px));overflow-y:auto;
  }
  .nav.is-open{opacity:1;transform:none;pointer-events:auto}
  .nav a{padding:1.05rem 0;border-bottom:1px solid var(--line);font-size:.95rem}
  .nav a::after{display:none}
  .nav .btn{margin-top:1.3rem;justify-content:center;border-bottom:0}
  .services,.steps,.grid-products{grid-template-columns:1fr}
  .field-row{grid-template-columns:1fr}
  .footer__top{grid-template-columns:1fr}
  .hero__actions .btn{flex:1 1 auto;justify-content:center}
  .catalog__bar{flex-direction:column;align-items:stretch}
  .searchbox input{min-width:0;flex:1}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}
  .needlefield polygon{transform:none;opacity:1}
  .reveal{opacity:1;transform:none}
}
@media print{.header,.needlefield,.nav,.footer{display:none}body{background:#fff}}

/* ---------------- blocco: loghi partner ---------------- */
.partner{border-block:1px solid var(--line);padding-block:1.6rem;overflow:hidden}
.section--dark .partner{border-color:var(--line-dark)}
.partner__pista{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:center;
  gap:clamp(1.6rem,4vw,3.4rem);
}
.partner__voce{
  display:flex;align-items:center;justify-content:center;
  height:clamp(32px,4vw,46px);flex:0 0 auto;text-decoration:none;
}
.partner__voce img{
  max-height:100%;width:auto;max-width:150px;object-fit:contain;
  /* I loghi arrivano da fonti diverse: scala di grigi per uniformarli
     al resto della pagina, colore pieno al passaggio del mouse. */
  filter:grayscale(1);opacity:.62;
  transition:filter .3s var(--ease),opacity .3s var(--ease);
}
.section--dark .partner__voce img{filter:grayscale(1) invert(1) brightness(1.6);opacity:.55}
.partner__voce:hover img,.partner__voce:focus-visible img{filter:none;opacity:1}
.section--dark .partner__voce:hover img{filter:none;opacity:1}

/* Scorrimento continuo: la pista contiene due copie identiche dei loghi,
   così quando la prima esce a sinistra la seconda è già in posizione. */
.partner--scorre{--durata:34s}
.partner--scorre .partner__pista{
  flex-wrap:nowrap;justify-content:flex-start;width:max-content;
  animation:partner-scorri var(--durata) linear infinite;
}
.partner--scorre:hover .partner__pista,
.partner--scorre:focus-within .partner__pista{animation-play-state:paused}
@keyframes partner-scorri{from{transform:translateX(0)}to{transform:translateX(-50%)}}

@media (max-width:720px){
  .partner__pista{gap:1.4rem}
  .partner__voce{height:30px}
  .partner__voce img{max-width:110px;filter:grayscale(1);opacity:.75}
}
@media (prefers-reduced-motion:reduce){
  .partner--scorre .partner__pista{animation:none;flex-wrap:wrap;justify-content:center;width:auto}
}

/* Voce senza logo: il nome del marchio scritto nel carattere del sito. */
.partner__voce--testo{height:auto}
.partner__nome{
  font-family:var(--ff-display);font-variation-settings:"wdth" 105,"wght" 640;
  text-transform:uppercase;letter-spacing:.02em;
  font-size:clamp(.95rem,1.5vw,1.2rem);color:var(--grey);
  transition:color .3s var(--ease);white-space:nowrap;
}
.section--dark .partner__nome{color:var(--grey-2)}
.partner__voce--testo:hover .partner__nome{color:var(--teal-deep)}
.section--dark .partner__voce--testo:hover .partner__nome{color:var(--teal-lit)}

/* ---------------- calcolatore del preventivo ----------------
   Due colonne: a sinistra le domande, a destra il risultato che resta in
   vista mentre si scorre. Il numero deve cambiare sotto gli occhi di chi
   compila — è quello che rende il calcolatore convincente invece che un
   modulo come un altro. */
/* Niente align-items:start — l'elemento della griglia deve occupare tutta
   l'altezza della riga, altrimenti il riquadro agganciato non ha spazio in
   cui scorrere e sparisce appena si va giù. */
.prev__grid{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(0,1fr);gap:clamp(2rem,4vw,3.5rem)}
.prev__risultato{align-self:stretch}
.prev__q{padding-bottom:2.2rem;margin-bottom:2.2rem;border-bottom:1px solid var(--line)}
.prev__q:last-child{border-bottom:0;margin-bottom:0}
.prev__q h2{font-family:var(--ff-display);font-variation-settings:"wdth" 100,"wght" 650;
  font-size:1.15rem;margin:0 0 1.2rem;letter-spacing:-.01em}
.prev__campi{display:grid;grid-template-columns:repeat(auto-fit,minmax(11rem,1fr));gap:1.2rem}
.prev__scelte{display:grid;gap:.6rem}
.prev__scelte--riga{grid-template-columns:repeat(auto-fit,minmax(7rem,1fr))}
.prev__opt{display:flex;gap:.75rem;align-items:flex-start;border:1px solid var(--line);
  padding:.85rem 1rem;cursor:pointer;transition:border-color .2s,background .2s}
.prev__opt:hover{border-color:var(--grey-2)}
.prev__opt input{margin-top:.25rem;accent-color:var(--teal);flex:none}
.prev__opt strong{display:block;font-size:.98rem;font-weight:600}
.prev__opt small{display:block;color:var(--grey);font-size:.85rem;margin-top:.15rem}
.prev__opt:has(input:checked){border-color:var(--teal);background:rgba(14,138,146,.05)}
.prev__opt--piccola{justify-content:center;text-align:center}
.prev__opt--piccola input{margin-top:.15rem}

/* I livelli di assistenza portano un elenco di cosa comprendono: è la parte
   che fa decidere, quindi ha più aria delle altre scelte. I segni di spunta
   sono disegnati con ::before perché un elenco puntato normale, qui dentro,
   rientrerebbe sotto il testo invece di allinearsi al bordo. */
.prev__opt--livello{padding:1.1rem 1.15rem}
.prev__incl{list-style:none;margin:.7rem 0 0;padding:0;display:grid;gap:.3rem}
.prev__incl li{position:relative;padding-left:1.3rem;font-size:.86rem;color:var(--grey);line-height:1.45}
.prev__incl li::before{content:"✓";position:absolute;left:0;top:0;color:var(--teal);font-weight:700}
.prev__opt--livello:has(input:checked) .prev__incl li{color:var(--ink)}

.prev__sticky{position:sticky;top:1.5rem;border:1px solid var(--line);border-top:3px solid var(--teal);
  background:var(--paper-lit);padding:1.6rem}
.prev__cifra{font-family:var(--ff-display);font-variation-settings:"wdth" 100,"wght" 700;
  font-size:clamp(2.2rem,4.5vw,3rem);line-height:1;margin:.3rem 0 .2rem}
.prev__cifra small{display:block;font-family:var(--ff-body);font-size:.8rem;font-weight:400;
  color:var(--grey);letter-spacing:0;margin-top:.4rem}
.prev__annuo{font-size:.9rem;color:var(--grey);margin:0 0 1.2rem}
.prev__voci{list-style:none;margin:0 0 1.2rem;padding:1.2rem 0 0;border-top:1px solid var(--line);display:grid;gap:.5rem}
.prev__voci li{display:flex;justify-content:space-between;gap:1rem;align-items:baseline;font-size:.9rem}
.prev__voci small{display:block;color:var(--grey-2);font-size:.78rem}
.prev__voci b{font-family:var(--ff-mono);font-size:.85rem;font-weight:500;white-space:nowrap}
.prev__ore{border-top:1px solid var(--line);padding-top:1rem;margin-bottom:1rem}
.prev__ore p{margin:0;font-size:.95rem}
.prev__ore .mini{display:block;color:var(--grey);font-size:.82rem}
.prev__nota{font-size:.84rem;color:var(--grey);line-height:1.55;margin:0 0 1.2rem}
.prev__vai{width:100%;justify-content:center}
.prev__contatti{max-width:46rem;margin-top:clamp(3rem,6vw,5rem);padding-top:clamp(2rem,4vw,3rem);border-top:1px solid var(--line)}

/* Barra del risultato per i telefoni.
   Su schermo stretto il riquadro va in cima, ma appena si comincia a
   rispondere esce di scena — e la pagina promette di far vedere la cifra
   mentre si compila. Questa barra resta ancorata in fondo e mostra il numero
   aggiornato; su schermo largo non esiste, perché lì c'è il riquadro laterale. */
.prev__barra{display:none}
@media(max-width:900px){
  .prev__grid{grid-template-columns:1fr}
  .prev__risultato{order:-1}
  .prev__sticky{padding:1.2rem;position:static}
  .prev__cifra{font-size:2.4rem}
  .prev__voci{display:none}
  .prev__contatti{padding-bottom:5rem}

  .prev__barra{display:flex;position:fixed;left:0;right:0;bottom:0;z-index:40;
    align-items:center;justify-content:space-between;gap:1rem;
    background:var(--ink);color:var(--paper);padding:.7rem 1rem;
    border-top:2px solid var(--teal);transform:translateY(110%);
    transition:transform .25s var(--ease)}
  .prev__barra.is-in{transform:none}
  .prev__barra strong{font-family:var(--ff-display);
    font-variation-settings:"wdth" 100,"wght" 700;font-size:1.35rem;line-height:1}
  .prev__barra small{display:block;font-size:.7rem;color:var(--grey-2);letter-spacing:.02em}
  .prev__barra .btn{padding:.6rem 1rem;font-size:.72rem}
}