/* Impiantistica Partenopea — foglio di stile */
@font-face{font-family:"Fraunces";src:url(../fonts/fraunces-latin-400-normal.woff2) format("woff2");font-weight:400;font-style:normal;font-display:swap}
@font-face{font-family:"Fraunces";src:url(../fonts/fraunces-latin-400-italic.woff2) format("woff2");font-weight:400;font-style:italic;font-display:swap}
@font-face{font-family:"Fraunces";src:url(../fonts/fraunces-latin-600-normal.woff2) format("woff2");font-weight:600;font-style:normal;font-display:swap}
@font-face{font-family:"Inter";src:url(../fonts/inter-latin-wght-normal.woff2) format("woff2-variations");font-weight:100 900;font-display:swap}

:root{
  --ink:#131d27; --ink-2:#1d2b38; --ink-3:#2c3d4d;
  --paper:#f7f4ef; --paper-2:#efe9e0; --white:#fff;
  --text:#1f2a33; --muted:#5c6873; --line:#ddd5c9;
  --copper:#b5602b; --copper-2:#d27a40; --copper-soft:#f3e2d4;
  --radius:14px; --radius-lg:22px;
  --shadow:0 1px 2px rgba(19,29,39,.06),0 8px 28px rgba(19,29,39,.08);
  --wrap:1180px; --gutter:clamp(16px,4vw,32px);
  --serif:"Fraunces",Georgia,"Times New Roman",serif;
  --sans:"Inter",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--paper);color:var(--text);font:400 17px/1.65 var(--sans);-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{max-width:100%;height:auto;display:block}
a{color:inherit}
h1,h2,h3{font-family:var(--serif);font-weight:600;line-height:1.12;letter-spacing:-.01em;margin:0 0 .5em;color:var(--ink)}
h1{font-size:clamp(2.3rem,5.4vw,4.1rem)}
h2{font-size:clamp(1.8rem,3.6vw,2.7rem)}
h3{font-size:1.3rem}
p{margin:0 0 1em}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 var(--gutter)}
.eyebrow{display:inline-flex;align-items:center;gap:.6em;font:600 .78rem/1 var(--sans);letter-spacing:.14em;text-transform:uppercase;color:var(--copper);margin-bottom:1.1rem}
.eyebrow::before{content:"";width:28px;height:1.5px;background:currentColor}
.lead{font-size:1.15rem;color:var(--muted);max-width:60ch}
.skip{position:absolute;left:-9999px;top:0}
.skip:focus{left:12px;top:12px;z-index:100;background:#fff;padding:8px 14px;border-radius:8px}
:focus-visible{outline:2.5px solid var(--copper-2);outline-offset:3px;border-radius:4px}

/* Bottoni */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.55em;padding:.9em 1.45em;border-radius:999px;font:600 .98rem/1 var(--sans);text-decoration:none;border:1.5px solid transparent;cursor:pointer;transition:transform .15s ease,background .2s,border-color .2s,color .2s;white-space:nowrap}
.btn svg{width:18px;height:18px;flex:none}
.btn:hover{transform:translateY(-1px)}
.btn-primary{background:var(--copper);color:#fff}
.btn-primary:hover{background:#a2531f}
.btn-ghost{border-color:currentColor;color:var(--ink)}
.btn-ghost:hover{background:var(--ink);color:#fff;border-color:var(--ink)}
.on-dark .btn-ghost{color:#fff}
.on-dark .btn-ghost:hover{background:#fff;color:var(--ink);border-color:#fff}
.btn-wa{background:#1f9d55;color:#fff}
.btn-wa:hover{background:#188246}

/* Header */
.site-header{position:sticky;top:0;z-index:50;background:rgba(247,244,239,.9);backdrop-filter:saturate(1.4) blur(10px);-webkit-backdrop-filter:saturate(1.4) blur(10px);border-bottom:1px solid transparent;transition:border-color .2s,box-shadow .2s}
.site-header.scrolled{border-color:var(--line);box-shadow:0 4px 18px rgba(19,29,39,.05)}
.nav{display:flex;align-items:center;justify-content:space-between;gap:20px;height:78px}
.brand{display:block;flex:none}
.brand img{height:56px;width:auto}
.menu{display:flex;align-items:center;gap:4px;list-style:none;margin:0;padding:0}
.menu a{display:block;white-space:nowrap;padding:.55em .85em;border-radius:8px;text-decoration:none;font-weight:500;font-size:.96rem;color:var(--ink-2)}
.menu a:hover,.menu a[aria-current="page"]{background:var(--paper-2);color:var(--ink)}
.nav-cta{display:flex;gap:10px;align-items:center}
.nav-cta .btn{padding:.75em 1.15em;font-size:.92rem}
.burger{display:none;width:46px;height:46px;border-radius:12px;border:1.5px solid var(--line);background:#fff;cursor:pointer;align-items:center;justify-content:center}
.burger span,.burger span::before,.burger span::after{display:block;width:20px;height:2px;background:var(--ink);position:relative;transition:transform .25s,background .25s}
.burger span::before,.burger span::after{content:"";position:absolute;left:0}
.burger span::before{top:-6px}.burger span::after{top:6px}
.nav-open .burger span{background:transparent}
.nav-open .burger span::before{transform:translateY(6px) rotate(45deg)}
.nav-open .burger span::after{transform:translateY(-6px) rotate(-45deg)}

/* Hero */
.hero{position:relative;background:var(--ink);color:#e9edf1;overflow:hidden}
.hero h1{color:#fff}
.hero h1 em{font-style:italic;font-weight:400;color:var(--copper-2)}
.hero .lead{color:#b7c2cc}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(28px,5vw,64px);align-items:center;padding-top:clamp(56px,8vw,110px);padding-bottom:clamp(64px,9vw,120px);position:relative;z-index:1}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:1.8rem}
.hero-facts{display:flex;flex-wrap:wrap;gap:10px 26px;margin:2.2rem 0 0;padding:0;list-style:none;font-size:.93rem;color:#c9d2da}
.hero-facts li{display:flex;align-items:center;gap:.5em}
.hero-facts svg{width:18px;height:18px;color:var(--copper-2);flex:none}
.hero-media{position:relative}
.hero-media .ph{border-radius:var(--radius-lg);overflow:hidden;aspect-ratio:4/5;box-shadow:0 30px 60px rgba(0,0,0,.35)}
.hero-media .ph img{width:100%;height:100%;object-fit:cover}
.hero-media .ph-small{position:absolute;left:-12%;bottom:-8%;width:52%;aspect-ratio:1/1;border-radius:var(--radius);overflow:hidden;border:6px solid var(--ink);box-shadow:0 20px 40px rgba(0,0,0,.35)}
.hero-media .ph-small img{width:100%;height:100%;object-fit:cover}
.vesuvio{position:absolute;left:0;right:0;bottom:-2px;width:100%;height:auto;color:rgba(255,255,255,.07);pointer-events:none}

/* Sezioni */
section{scroll-margin-top:84px}
.section{padding:clamp(64px,9vw,120px) 0}
.section-alt{background:var(--white)}
.section-head{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:flex-end;gap:20px 40px;margin-bottom:clamp(32px,5vw,56px)}
.section-head > div{max-width:640px}
.section-head .lead{margin:0}

/* Servizi */
.services{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.card{position:relative;background:var(--white);border:1px solid var(--line);border-radius:var(--radius-lg);padding:30px 26px 26px;display:flex;flex-direction:column;text-decoration:none;transition:transform .2s,box-shadow .2s,border-color .2s}
.section-alt .card{background:var(--paper)}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:transparent}
.card .ico{width:54px;height:54px;border-radius:14px;background:var(--copper-soft);color:var(--copper);display:grid;place-items:center;margin-bottom:22px}
.card .ico svg{width:28px;height:28px}
.card h3{margin-bottom:.45em}
.card p{color:var(--muted);font-size:.97rem;margin-bottom:1.2em}
.card ul{list-style:none;margin:0 0 1.4em;padding:0;font-size:.92rem;color:var(--ink-3)}
.card li{padding:.32em 0;border-top:1px dashed var(--line)}
.card .more{margin-top:auto;font-weight:600;color:var(--copper);display:inline-flex;gap:.4em;align-items:center}
.card .more svg{width:16px;height:16px;transition:transform .2s}
.card:hover .more svg{transform:translateX(4px)}

/* Metodo */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;counter-reset:s;border-top:1px solid var(--line)}
.step{padding:30px 26px 10px 0;counter-increment:s;position:relative}
.step + .step{padding-left:26px;border-left:1px solid var(--line)}
.step::before{content:"0" counter(s);font:400 2.6rem/1 var(--serif);color:var(--copper);display:block;margin-bottom:18px}
.step p{color:var(--muted);font-size:.97rem}

/* Split */
.split{display:grid;grid-template-columns:1fr 1fr;gap:clamp(32px,6vw,80px);align-items:center}
.split .ph{border-radius:var(--radius-lg);overflow:hidden;aspect-ratio:5/4}
.split .ph img{width:100%;height:100%;object-fit:cover}
.checks{list-style:none;padding:0;margin:1.4em 0 1.8em;display:grid;gap:.7em}
.checks li{display:flex;gap:.75em;align-items:flex-start}
.checks svg{flex:none;width:22px;height:22px;color:var(--copper);margin-top:.15em}

/* Galleria */
.gallery{display:grid;grid-template-columns:repeat(12,1fr);grid-auto-rows:150px;gap:14px}
.gallery figure{margin:0;position:relative;border-radius:var(--radius);overflow:hidden;cursor:zoom-in;background:var(--paper-2)}
.gallery img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.gallery figure:hover img{transform:scale(1.04)}
.gallery figcaption{position:absolute;left:10px;bottom:10px;right:10px;font-size:.82rem;font-weight:600;color:#fff;padding:.45em .75em;background:rgba(19,29,39,.72);border-radius:8px;width:max-content;max-width:calc(100% - 20px);backdrop-filter:blur(4px)}
.g1{grid-column:span 6;grid-row:span 3}.g2,.g3{grid-column:span 3;grid-row:span 3}
.g4,.g5,.g6,.g7{grid-column:span 3;grid-row:span 2}
.lightbox{position:fixed;inset:0;z-index:200;background:rgba(10,15,20,.92);display:none;align-items:center;justify-content:center;padding:24px}
.lightbox.open{display:flex}
.lightbox img{max-height:86vh;max-width:min(1100px,100%);width:auto;border-radius:10px}
.lightbox button{position:absolute;top:16px;right:16px;width:48px;height:48px;border-radius:50%;border:0;background:#fff;font-size:26px;line-height:1;cursor:pointer}

/* Area servita */
.area{background:var(--ink);color:#d5dde4;border-radius:var(--radius-lg);padding:clamp(32px,5vw,60px);display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center;position:relative;overflow:hidden}
.area h2{color:#fff}
.area .lead{color:#aebac5}
.towns{display:flex;flex-wrap:wrap;gap:8px;list-style:none;margin:0;padding:0}
.towns li{padding:.5em .95em;border:1px solid rgba(255,255,255,.18);border-radius:999px;font-size:.92rem}
.towns li.main{background:var(--copper);border-color:var(--copper);color:#fff;font-weight:600}

/* Contatti */
.contact{display:grid;grid-template-columns:.9fr 1.1fr;gap:clamp(28px,5vw,64px);align-items:start}
.info-list{list-style:none;padding:0;margin:1.6em 0 0;display:grid;gap:12px}
.info-list li a,.info-list li > div{display:flex;gap:16px;align-items:center;padding:16px 18px;background:var(--white);border:1px solid var(--line);border-radius:var(--radius);text-decoration:none;transition:border-color .2s}
.info-list li a:hover{border-color:var(--copper)}
.info-list .i{width:44px;height:44px;border-radius:12px;background:var(--copper-soft);color:var(--copper);display:grid;place-items:center;flex:none}
.info-list .i svg{width:22px;height:22px}
.info-list small{display:block;color:var(--muted);font-size:.8rem;text-transform:uppercase;letter-spacing:.08em;font-weight:600}
.info-list strong{font-weight:600;color:var(--ink);word-break:break-word}
.form{background:var(--white);border:1px solid var(--line);border-radius:var(--radius-lg);padding:clamp(24px,4vw,40px);box-shadow:var(--shadow)}
.form h3{font-size:1.5rem}
.form .row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.field{display:flex;flex-direction:column;gap:6px;margin-bottom:14px}
.field label{font-size:.88rem;font-weight:600;color:var(--ink-2)}
.field input,.field select,.field textarea{font:inherit;font-size:1rem;padding:.8em .95em;border:1.5px solid var(--line);border-radius:10px;background:var(--paper);color:var(--text);width:100%}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--copper);background:#fff}
.field textarea{min-height:120px;resize:vertical}
.consent{display:flex;gap:10px;align-items:flex-start;font-size:.86rem;color:var(--muted);margin:4px 0 20px}
.consent input{margin-top:.3em;accent-color:var(--copper);width:18px;height:18px;flex:none}
.form-actions{display:flex;flex-wrap:wrap;gap:10px}
.form-note{font-size:.82rem;color:var(--muted);margin:14px 0 0}

/* Pagine servizio */
.page-hero{background:var(--ink);color:#c9d2da;padding:clamp(48px,7vw,90px) 0 clamp(56px,8vw,100px);position:relative;overflow:hidden}
.page-hero h1{color:#fff;max-width:18ch}
.page-hero .lead{color:#aebac5}
.crumbs{font-size:.86rem;margin-bottom:1.4rem;color:#95a3b0}
.crumbs a{color:#c9d2da;text-decoration:none}
.crumbs a:hover{color:#fff}
.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.feature{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:24px}
.feature .ico{width:44px;height:44px;border-radius:12px;background:var(--copper-soft);color:var(--copper);display:grid;place-items:center;margin-bottom:16px}
.feature .ico svg{width:22px;height:22px}
.feature h3{font-size:1.12rem}
.feature p{color:var(--muted);font-size:.95rem;margin:0}
.faq{max-width:820px}
.faq details{border-bottom:1px solid var(--line);padding:4px 0}
.faq summary{cursor:pointer;list-style:none;padding:18px 40px 18px 0;font-weight:600;font-size:1.06rem;color:var(--ink);position:relative}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:6px;top:50%;transform:translateY(-50%);font:400 1.6rem/1 var(--serif);color:var(--copper);transition:transform .2s}
.faq details[open] summary::after{transform:translateY(-50%) rotate(45deg)}
.faq details p{color:var(--muted);padding-right:40px}
.cta-band{background:var(--copper);color:#fff;border-radius:var(--radius-lg);padding:clamp(32px,5vw,56px);display:flex;flex-wrap:wrap;gap:24px;align-items:center;justify-content:space-between}
.cta-band h2{color:#fff;margin:0 0 .25em}
.cta-band p{margin:0;color:#fbe9dc}
.cta-band .btn-light{background:#fff;color:var(--copper)}
.cta-band .btn-light:hover{background:var(--ink);color:#fff}
.other-services{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.other-services a{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:20px 22px;border:1px solid var(--line);border-radius:var(--radius);text-decoration:none;font-weight:600;color:var(--ink);background:var(--white)}
.other-services a:hover{border-color:var(--copper);color:var(--copper)}
.prose{max-width:760px}
.prose h2{font-size:1.6rem;margin-top:1.6em}
.prose h3{margin-top:1.4em}

/* Footer */
.site-footer{background:var(--ink);color:#9fadb9;padding:72px 0 0;font-size:.95rem;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:40px}
.site-footer h4{color:#fff;font:600 .8rem/1 var(--sans);letter-spacing:.14em;text-transform:uppercase;margin:0 0 18px}
.site-footer ul{list-style:none;margin:0;padding:0;display:grid;gap:10px}
.site-footer a{text-decoration:none;color:#c9d2da}
.site-footer a:hover{color:#fff}
.site-footer .brand img{height:64px;margin-bottom:18px}
.social{display:flex;gap:10px;margin-top:18px}
.social a{width:42px;height:42px;border-radius:50%;border:1px solid rgba(255,255,255,.18);display:grid;place-items:center}
.social a:hover{background:var(--copper);border-color:var(--copper)}
.social svg{width:19px;height:19px}
.legal{margin-top:56px;padding:22px 0 26px;border-top:1px solid rgba(255,255,255,.1);display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;font-size:.85rem;color:#7d8c99}

/* Barra mobile */
.mbar{display:none}

/* Animazioni */
.js .reveal{opacity:0;transform:translateY(18px);transition:opacity .7s ease,transform .7s ease}
.js .reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}.reveal{opacity:1;transform:none;transition:none}*{transition:none!important}}

/* Responsive */
@media (max-width:1200px){.nav-cta .btn-ghost{display:none}}
@media (max-width:1080px){
  .services{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
  .menu a{padding:.55em .6em}
  .nav-cta .btn-ghost{display:none}
}
@media (max-width:900px){
  .burger{display:inline-flex}
  .menu{position:fixed;top:78px;left:0;right:0;flex-direction:column;align-items:stretch;background:var(--paper);padding:14px var(--gutter) 24px;border-bottom:1px solid var(--line);box-shadow:0 20px 30px rgba(19,29,39,.12);transform:translateY(-8px);opacity:0;visibility:hidden;transition:.2s}
  .nav-open .menu{transform:none;opacity:1;visibility:visible}
  .menu a{padding:.95em .6em;font-size:1.05rem;border-bottom:1px solid var(--line);border-radius:0}
  .nav-cta .btn-primary{display:none}
  .hero-grid,.split,.contact,.area{grid-template-columns:1fr}
  .hero-media{max-width:520px;margin:0 auto 20px;width:100%}
  .hero-media .ph{aspect-ratio:4/3}
  .hero-media .ph-small{left:auto;right:-4%;bottom:-10%;width:38%}
  .steps{grid-template-columns:1fr 1fr}
  .step:nth-child(3){padding-left:0;border-left:0}
  .step{border-top:1px solid var(--line)}
  .feature-grid,.other-services{grid-template-columns:1fr 1fr}
  .gallery{grid-template-columns:repeat(2,1fr);grid-auto-rows:170px}
  .gallery figure{grid-column:span 1!important;grid-row:span 1!important}
  .gallery .g1{grid-column:span 2!important;grid-row:span 2!important}
  .mbar{display:grid;grid-template-columns:1fr 1fr;gap:8px;position:fixed;left:0;right:0;bottom:0;z-index:60;padding:10px 12px calc(10px + env(safe-area-inset-bottom));background:rgba(247,244,239,.96);backdrop-filter:blur(8px);border-top:1px solid var(--line)}
  .mbar .btn{padding:.95em 1em}
  body{padding-bottom:76px}
}
@media (max-width:600px){
  body{font-size:16px}
  .brand img{height:42px}
  .nav{height:68px}
  .menu{top:68px}
  .services,.feature-grid,.other-services,.steps,.footer-grid{grid-template-columns:1fr}
  .step,.step + .step{padding-left:0;border-left:0}
  .form .row{grid-template-columns:1fr}
  .hero-actions .btn{flex:1 1 100%}
  .gallery{grid-auto-rows:140px}
  .cta-band .btn{width:100%}
}
.other-services svg{width:20px;height:20px;flex:none}

/* Chi siamo */
.about{display:grid;grid-template-columns:1.25fr .75fr;gap:clamp(32px,6vw,80px);align-items:center}
.about h2 em{font-style:italic;font-weight:400;color:var(--copper)}
.about p:not(.lead){color:var(--muted)}
.stats{list-style:none;margin:0;padding:0;display:grid;gap:14px}
.stats li{display:flex;align-items:baseline;gap:18px;padding:20px 24px;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius)}
.stats strong{font:600 2.3rem/1 var(--serif);color:var(--copper);min-width:92px}
.stats span{color:var(--ink-3);font-size:.97rem}

/* Hero pagine servizio con foto */
.page-hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:clamp(28px,5vw,64px);align-items:center;position:relative;z-index:1}
.page-hero-ph{border-radius:var(--radius-lg);overflow:hidden;aspect-ratio:4/3;box-shadow:0 30px 60px rgba(0,0,0,.35);position:relative}
.page-hero-ph img{width:100%;height:100%;object-fit:cover}
.ph{position:relative}
.ph-tag{position:absolute;right:10px;bottom:10px;font-size:.72rem;font-weight:500;color:#fff;background:rgba(19,29,39,.6);padding:.3em .65em;border-radius:6px;backdrop-filter:blur(4px)}
.strip{grid-template-columns:repeat(3,1fr);grid-auto-rows:260px}
.strip figure{grid-column:auto!important;grid-row:auto!important}
@media (max-width:900px){
  .about,.page-hero-grid{grid-template-columns:1fr}
  .page-hero-ph{max-width:560px}
  .strip{grid-template-columns:1fr 1fr;grid-auto-rows:180px}
  .strip figure:first-child{grid-column:span 2!important}
}