/* Piani STOLLE — foglio di stile del sito. Autore: Matteo Dones */
@font-face{font-family:"Barlow";font-weight:400;font-style:normal;font-display:swap;src:url(../fonts/barlow-latin-400-normal.woff2) format("woff2")}
@font-face{font-family:"Barlow";font-weight:500;font-style:normal;font-display:swap;src:url(../fonts/barlow-latin-500-normal.woff2) format("woff2")}
@font-face{font-family:"Barlow";font-weight:600;font-style:normal;font-display:swap;src:url(../fonts/barlow-latin-600-normal.woff2) format("woff2")}
@font-face{font-family:"Barlow";font-weight:700;font-style:normal;font-display:swap;src:url(../fonts/barlow-latin-700-normal.woff2) format("woff2")}
@font-face{font-family:"Barlow Semi Condensed";font-weight:500;font-style:normal;font-display:swap;src:url(../fonts/barlow-semi-condensed-latin-500-normal.woff2) format("woff2")}
@font-face{font-family:"Barlow Semi Condensed";font-weight:600;font-style:normal;font-display:swap;src:url(../fonts/barlow-semi-condensed-latin-600-normal.woff2) format("woff2")}

:root{--ink:#12161A;--muted:#4A5560;--soft:#5B6670;--blue:#085890;--blue-d:#06406A;--red:#B81020;--light:#F3F5F7;--line:#E3E7EB;--dark:#0D1013;--gut:clamp(20px,5vw,64px);--max:1312px}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;background:#fff;color:var(--ink);font-family:"Barlow",system-ui,-apple-system,"Segoe UI",sans-serif;-webkit-font-smoothing:antialiased;line-height:1.5}
img{max-width:100%;height:auto}
a{color:var(--blue)}a:hover{color:var(--blue-d)}
:focus-visible{outline:3px solid var(--blue);outline-offset:3px;border-radius:4px}
.skip{position:absolute;left:-999px;top:8px;background:#fff;color:var(--ink);padding:10px 16px;border-radius:8px;z-index:100}
.skip:focus{left:8px}
.wrap{max-width:var(--max);margin:0 auto}
.sec{padding:clamp(56px,8vw,112px) var(--gut)}
.sec.light{background:var(--light)}
.sec.dark{background:var(--dark);color:#E8ECEF}
.sec.blue{background:var(--blue);color:#fff}

/* header */
.hdr{position:sticky;top:0;z-index:50;display:flex;align-items:center;justify-content:space-between;gap:24px;padding:14px var(--gut);background:rgba(255,255,255,.96);backdrop-filter:saturate(1.4) blur(10px);border-bottom:1px solid var(--line)}
.brand{display:inline-flex;align-items:center;gap:10px;text-decoration:none}
.brand img{height:44px;width:auto;display:block}
.brand span{font-family:"Barlow Semi Condensed",sans-serif;font-weight:600;font-size:13px;letter-spacing:.2em;color:#6B7680;text-transform:uppercase}
.nav{display:flex;align-items:center;gap:32px}
.nav>a,.nav .dd>button{color:var(--ink);text-decoration:none;font:500 15px/1 "Barlow",sans-serif;padding:14px 2px;background:none;border:0;cursor:pointer;display:inline-flex;align-items:center;gap:6px}
.nav>a:hover,.nav .dd>button:hover,.nav [aria-current]{color:var(--blue)}
.nav [aria-current]{font-weight:600}
.dd{position:relative}
.dd-menu{display:none;position:absolute;left:-16px;top:100%;min-width:260px;background:#fff;border:1px solid var(--line);border-radius:16px;padding:8px;box-shadow:0 18px 40px rgba(13,16,19,.12)}
.dd.open .dd-menu{display:block}
.dd-menu a{display:block;padding:11px 14px;border-radius:10px;color:var(--ink);text-decoration:none;font-size:15px;font-weight:500}
.dd-menu a:hover,.dd-menu a[aria-current]{background:var(--light);color:var(--blue)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:48px;padding:0 26px;border-radius:999px;background:var(--blue);color:#fff;text-decoration:none;font:600 16px/1 "Barlow",sans-serif;border:1.5px solid var(--blue);cursor:pointer;transition:background .15s}
.btn:hover{background:var(--blue-d);border-color:var(--blue-d);color:#fff}
.btn.sm{min-height:44px;padding:0 22px;font-size:15px}
.btn.ghost{background:transparent;color:var(--blue)}
.btn.ghost:hover{background:var(--blue);color:#fff}
.btn.white{background:#fff;color:var(--blue);border-color:#fff}
.btn.white:hover{background:#E6EEF5;color:var(--blue-d)}
.btn.ghost-w{background:transparent;color:#fff;border-color:rgba(255,255,255,.75)}
.btn.ghost-w:hover{background:rgba(255,255,255,.14);color:#fff}
.menu-btn{display:none;width:44px;height:44px;border:0;border-radius:999px;background:var(--light);color:var(--ink);cursor:pointer;align-items:center;justify-content:center}
@media(max-width:980px){
 .menu-btn{display:inline-flex}
 .nav,.hdr>.btn{display:none}
 .hdr.open .nav{display:flex;position:absolute;left:0;right:0;top:100%;flex-direction:column;align-items:stretch;gap:0;background:#fff;padding:8px var(--gut) 24px;border-bottom:1px solid var(--line);max-height:calc(100vh - 72px);overflow:auto}
 .hdr.open .nav>a,.hdr.open .nav .dd>button{padding:16px 2px;border-bottom:1px solid var(--line);font-size:17px;width:100%;justify-content:space-between}
 .dd-menu{position:static;display:block;border:0;box-shadow:none;padding:0 0 8px 12px;min-width:0}
 .dd>button svg{display:none}
 .hdr.open .nav .btn{display:inline-flex;margin-top:18px;width:100%}
}
@media(min-width:981px){.nav .btn-m{display:none}}
.nav>a.btn,.hdr.open .nav>a.btn{background:var(--blue);color:#fff;border:1.5px solid var(--blue);padding:0 22px;justify-content:center;font-size:15px;width:auto}
.hdr.open .nav>a.btn{width:100%;margin-top:18px}
.nav>a.btn:hover{background:var(--blue-d);color:#fff}

/* tipografia */
.eyebrow{margin:0 0 16px;display:flex;align-items:center;gap:10px;font:600 14px/1 "Barlow Semi Condensed",sans-serif;letter-spacing:.16em;text-transform:uppercase;color:var(--blue)}
.eyebrow::before{content:"";width:10px;height:10px;background:var(--red);flex:none}
.dark .eyebrow,.blue .eyebrow{color:#C9D3DB}
.blue .eyebrow::before{background:#fff}
h1,h2,h3,h4{font-weight:600;letter-spacing:-.02em;margin:0}
h1{font-size:clamp(2.2rem,5vw,4.25rem);line-height:1.02;letter-spacing:-.025em;max-width:16ch}
h2{font-size:clamp(1.9rem,3.6vw,3.1rem);line-height:1.06;max-width:20ch}
h3{font-size:1.4rem;line-height:1.2}
.lead{margin:20px 0 0;font-size:clamp(1.15rem,1.8vw,1.5rem);line-height:1.35;font-weight:500;max-width:34ch}
.txt{margin:16px 0 0;font-size:clamp(1rem,1.3vw,1.125rem);line-height:1.6;color:var(--muted);max-width:62ch}
.dark .txt{color:#B4BEC6}
.txt strong{color:var(--ink);font-weight:600}
.dark h2,.dark h3,.blue h2{color:#fff}
.row{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}

/* breadcrumb */
.crumb{padding:16px var(--gut);background:var(--light);font-size:14px;color:var(--soft)}
.crumb ol{list-style:none;margin:0 auto;padding:0;max-width:var(--max);display:flex;flex-wrap:wrap;gap:6px 10px}
.crumb li+li::before{content:"/";margin-right:10px}
.crumb a{color:var(--soft);text-decoration:none}.crumb a:hover{color:var(--blue)}
.crumb [aria-current]{color:var(--ink);font-weight:500}

/* hero home */
.hero{position:relative;aspect-ratio:2500/1181;min-height:480px;background:#1a1d20;overflow:hidden;color:#fff}
.hero>img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(9,11,13,.9) 0%,rgba(9,11,13,.5) 40%,rgba(9,11,13,0) 72%)}
.hero-p{position:absolute;z-index:3;left:56.5%;width:35%;top:52%;aspect-ratio:1/.866;pointer-events:none}
.hero-p svg{position:absolute;inset:0;width:100%;height:100%;overflow:visible}
.hero-p polygon{fill:rgba(128,128,128,.15);stroke:#000;stroke-width:3;vector-effect:non-scaling-stroke;stroke-linejoin:miter}
.hero>img.hero-p-img,.hero-p img{position:absolute;inset:auto;left:12%;top:25%;width:70%;height:40%;object-fit:contain}
.hero-t{position:absolute;z-index:2;left:0;right:0;bottom:0;padding:0 var(--gut) clamp(32px,4.5vw,72px)}
.hero-t .eyebrow{color:#fff}.hero-t .eyebrow::before{background:var(--red)}
.hero h1{font-size:clamp(2.4rem,4.4vw,4rem);max-width:14ch;color:#fff}
.hero .lead{color:#E8ECEF;max-width:36ch}
@media(max-width:820px){
 .hero{aspect-ratio:auto;min-height:0;background:var(--dark)}
 .hero>img{position:static;height:auto;aspect-ratio:2500/1181}
 .hero::after{display:none}
 .hero-p{display:none}
 .hero-t{position:static;padding:32px var(--gut) 44px}
}

/* hero interne */
.phero{padding:clamp(32px,5vw,72px) var(--gut) clamp(48px,7vw,104px);background:var(--light)}
.split{display:flex;flex-wrap:wrap;gap:48px 64px;align-items:center}
.split>*{flex:1 1 420px;min-width:0}
.rimg{display:block;width:100%;height:auto;border-radius:28px}
.card-img{display:flex;align-items:center;justify-content:center;background:#fff;border:1px solid var(--line);border-radius:24px;padding:24px}
.card-img img{display:block;width:100%;height:auto}

/* griglie */
.grid{display:grid;gap:20px;grid-template-columns:repeat(auto-fit,minmax(min(260px,100%),1fr))}
.grid.w3{grid-template-columns:repeat(auto-fit,minmax(min(320px,100%),1fr))}
.cols{display:grid;gap:32px 40px;margin-top:56px;grid-template-columns:repeat(auto-fit,minmax(min(260px,100%),1fr))}
.col{border-top:1px solid #2C343B;padding-top:20px}
.light .col,.sec:not(.dark) .col{border-top-color:var(--line)}
.col .n{margin:0 0 8px;font:600 15px/1 "Barlow Semi Condensed",sans-serif;letter-spacing:.12em;color:#9FB4C4}
.sec:not(.dark) .col .n{color:var(--blue)}
.col p{margin:10px 0 0;font-size:16px;line-height:1.55;color:#B4BEC6}
.sec:not(.dark) .col p{color:var(--muted)}
.stat{background:var(--light);border-radius:20px;padding:28px}
.sec.light .stat{background:#fff}
.stat b{display:block;margin:0 0 10px;font-size:clamp(1.7rem,2.6vw,2.25rem);line-height:1.05;font-weight:600;letter-spacing:-.02em;color:var(--blue)}
.stat p{margin:0;font-size:15.5px;line-height:1.5;color:var(--muted)}

/* card prodotto (home) */
.pcard{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:24px;overflow:hidden;text-decoration:none;color:var(--ink);transition:transform .2s,box-shadow .2s}
.pcard:hover{transform:translateY(-3px);box-shadow:0 18px 40px rgba(13,16,19,.1);color:var(--ink)}
.pcard img{display:block;width:100%;aspect-ratio:5/4;object-fit:cover}
.pcard div{padding:24px 26px 28px;display:flex;flex-direction:column;gap:10px;flex:1}
.pcard h3{font-size:1.5rem}
.pcard p{margin:0;font-size:16px;line-height:1.5;color:var(--muted)}
.more{margin-top:auto;padding-top:6px;font-weight:600;color:var(--blue);display:inline-flex;gap:6px;align-items:center}

/* tabella */
.tbl{margin-top:40px;overflow-x:auto;background:#fff;border-radius:20px}
.tbl table{width:100%;min-width:520px;border-collapse:collapse;font-size:16px}
.tbl thead th{background:var(--blue);color:#fff;text-align:left;padding:20px 24px;font:600 14px/1 "Barlow Semi Condensed",sans-serif;letter-spacing:.14em;text-transform:uppercase}
.tbl th[scope=row]{text-align:left;padding:15px 24px;font-weight:600;border-bottom:1px solid var(--line)}
.tbl td{padding:15px 24px;border-bottom:1px solid var(--line)}
.tbl tr:last-child th,.tbl tr:last-child td{border-bottom:0}
.tbl .note{color:var(--soft);font-size:15px;vertical-align:middle}

/* liste, galleria */
.checks{list-style:none;margin:28px 0 0;padding:0;display:grid;gap:14px;max-width:62ch}
.checks li{position:relative;padding-left:30px;font-size:17px;line-height:1.5;color:var(--muted)}
.checks li::before{content:"";position:absolute;left:0;top:.55em;width:10px;height:10px;background:var(--red)}
.checks strong{color:var(--ink);font-weight:600}
.dark .checks li{color:#B4BEC6}.dark .checks strong{color:#fff}
.gal{display:grid;gap:16px;grid-template-columns:repeat(auto-fill,minmax(min(240px,100%),1fr));margin-top:40px}
.gal a{display:block;border-radius:18px;overflow:hidden;background:var(--light)}
.gal img{display:block;width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .3s}
.gal a:hover img{transform:scale(1.04)}
.lightbox{position:fixed;inset:0;z-index:200;background:rgba(9,11,13,.92);display:none;align-items:center;justify-content:center;padding:24px}
.lightbox.on{display:flex}
.lightbox img{max-width:100%;max-height:100%;border-radius:12px}
.lightbox button{position:absolute;top:16px;right:16px;width:48px;height:48px;border-radius:999px;border:0;background:#fff;font-size:22px;cursor:pointer}

/* tech cards con immagine */
.tech{display:grid;gap:20px;grid-template-columns:repeat(auto-fit,minmax(min(320px,100%),1fr));margin-top:48px}
.tech article{background:#fff;border-radius:24px;padding:28px;border:1px solid var(--line);display:flex;flex-direction:column;gap:14px}
.tech img{display:block;width:100%;max-width:260px;height:auto;margin:0 auto}
.tech h3{font-size:1.35rem}
.tech p{margin:0;font-size:16px;line-height:1.55;color:var(--muted)}
.fig{margin:32px 0 0;background:#fff;border:1px solid var(--line);border-radius:24px;padding:20px;overflow-x:auto}
.fig img{display:block;width:100%;min-width:560px;height:auto}
.fig figcaption{margin-top:12px;font-size:14px;color:var(--soft)}
.formula{display:grid;gap:12px;margin:28px 0 0;padding:0;list-style:none;grid-template-columns:repeat(auto-fit,minmax(min(240px,100%),1fr))}
.formula li{background:var(--light);border-radius:16px;padding:18px 20px}
.formula b{display:block;font-size:1.15rem;color:var(--blue)}
.formula span{font-size:15px;color:var(--muted)}

/* faq */
.faq{max-width:900px;margin:0 auto}
.faq details{border-bottom:1px solid var(--line);padding:6px 0}
.faq summary{list-style:none;cursor:pointer;display:flex;gap:20px;align-items:baseline;padding:22px 0;font-size:clamp(1.15rem,1.8vw,1.4rem);font-weight:600;letter-spacing:-.01em}
.faq summary::-webkit-details-marker{display:none}
.faq summary .n{font:600 15px/1 "Barlow Semi Condensed",sans-serif;letter-spacing:.12em;color:var(--blue);flex:none}
.faq summary::after{content:"+";margin-left:auto;font-size:28px;line-height:1;color:var(--blue);font-weight:400}
.faq details[open] summary::after{content:"–"}
.ans{padding:0 0 26px 48px;color:var(--muted);font-size:17px;line-height:1.65}
.ans p{margin:0 0 14px}.ans ul{margin:0 0 14px;padding-left:20px}.ans li{margin:6px 0}
.ans strong{color:var(--ink)}
@media(max-width:560px){.ans{padding-left:0}}

/* CTA e footer */
.cta{display:flex;flex-wrap:wrap;gap:32px 56px;align-items:center;justify-content:space-between;background:var(--blue);color:#fff;border-radius:28px;padding:clamp(28px,5vw,64px);max-width:var(--max);margin:0 auto}
.cta .main{flex:1 1 360px;display:flex;flex-direction:column;gap:14px;align-items:flex-start}
.cta h2{font-size:clamp(1.9rem,3.4vw,3rem);max-width:16ch;color:#fff}
.cta p{margin:0;font-size:1.1rem;line-height:1.5;color:#E6EEF5;max-width:40ch}
.cta .side{flex:0 1 340px;display:flex;flex-direction:column;gap:6px;padding-left:32px;border-left:1px solid rgba(255,255,255,.35)}
.cta .side p{font-size:15.5px}
.cta .side a{color:#fff;font-weight:600;text-decoration:none}
.sign{margin:0 0 8px;font-size:15.5px;line-height:1.5;color:#fff}
.sign span{display:block;color:#E6EEF5}
@media(max-width:820px){.cta .side{padding-left:0;border-left:0;padding-top:24px;border-top:1px solid rgba(255,255,255,.35)}}
.ftr{background:var(--dark);color:#B4BEC6;padding:56px var(--gut) 32px}
.ftr .wrap{display:grid;gap:40px;grid-template-columns:minmax(220px,1.4fr) repeat(3,minmax(150px,1fr))}
.ftr h2{font:600 13px/1 "Barlow Semi Condensed",sans-serif;letter-spacing:.16em;text-transform:uppercase;color:#fff;margin:0 0 16px;max-width:none}
.ftr a{color:#B4BEC6;text-decoration:none;display:block;padding:6px 0;font-size:15px}.ftr a:hover{color:#fff}
.ftr p{margin:0 0 8px;font-size:15px;line-height:1.55}
.ftr .logo{height:40px;width:auto;box-sizing:content-box;background:#fff;padding:12px 16px;border-radius:12px;margin-bottom:20px}
.ftr .fine{max-width:var(--max);margin:40px auto 0;padding-top:24px;border-top:1px solid #2C343B;font-size:14px;color:#8A959E;display:flex;flex-wrap:wrap;gap:8px 24px;justify-content:space-between}
@media(max-width:900px){.ftr .wrap{grid-template-columns:1fr 1fr}}
@media(max-width:560px){.ftr .wrap{grid-template-columns:1fr}}

/* form */
.alert{max-width:var(--max);margin:0 auto 32px;padding:18px 24px;border-radius:16px;font-size:17px;font-weight:500}
.alert.ok{background:#E7F4EC;color:#14532D;border:1px solid #B7DFC6}
.alert.err{background:#FDECEE;color:#7A0C18;border:1px solid #F2B8BE}
.form{max-width:900px;margin:0 auto}
.fset{background:#fff;border:1px solid var(--line);border-radius:24px;padding:clamp(22px,3.5vw,40px);margin:0 0 20px}
.fset h2,.fset h3{margin:0 0 6px;font-size:1.5rem;line-height:1.2;max-width:none}
.fset .hint{margin:0 0 22px;color:var(--soft);font-size:15.5px}
.fgrid{display:grid;gap:18px 20px;grid-template-columns:repeat(auto-fit,minmax(min(240px,100%),1fr))}
.fgrid .full{grid-column:1/-1}
.fld label{display:block;margin:0 0 7px;font-size:15px;font-weight:600}
.fld input,.fld select,.fld textarea{width:100%;min-height:48px;padding:11px 14px;border:1.5px solid #CBD3DA;border-radius:12px;background:#fff;color:var(--ink);font:400 16px/1.4 "Barlow",sans-serif}
.fld textarea{min-height:96px;resize:vertical}
.fld input:focus,.fld select:focus,.fld textarea:focus{outline:0;border-color:var(--blue);box-shadow:0 0 0 3px rgba(8,88,144,.18)}
.fld .req{color:var(--red)}
.form-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:8px}
.piano-extra h2{display:flex;justify-content:space-between;align-items:center}
#riepilogo{display:none;background:var(--light);border-radius:24px;padding:clamp(22px,3.5vw,36px);margin:20px 0}
#riepilogo h4{margin:0 0 14px;font-size:1.3rem}
#contenutoRiepilogo{white-space:pre-wrap;font-size:15px;line-height:1.55;background:#fff;border-radius:14px;padding:18px}
.privacy-note{font-size:14px;color:var(--soft);margin:16px 0 0}

/* legale */
.legal{max-width:760px;margin:0 auto}
.legal h2{font-size:1.6rem;margin:36px 0 10px;max-width:none}
.legal p,.legal li{font-size:17px;line-height:1.65;color:var(--muted)}

@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}
@media print{.hdr,.ftr,.cta{display:none}}

@media(max-width:820px){#tracciatura .split{flex-wrap:wrap!important}#tracciatura .trac-fig{flex:1 1 100%!important;max-width:450px}}