/* =========================================================
   LUSARDI CALCESTRUZZI — foglio di stile condiviso
   Design industriale: calcestruzzo + segnaletica di cantiere.
   ========================================================= */
:root{
  --nero:#14161a;        /* asfalto / calcestruzzo bagnato */
  --grigio:#6b6f76;      /* cemento */
  --grigio-ch:#9a9ea4;
  --chiaro:#e7e5e0;      /* calcestruzzo secco */
  --carta:#f6f5f2;
  --bianco:#ffffff;
  --giallo:#56d0f5;      /* celeste — tint principale */
  --giallo-scuro:#56d0f5;
  --linea:#d5d3cd;
  --linea-scura:#2c2f35;

  --display:'Archivo',system-ui,sans-serif;
  --body:'Inter',system-ui,sans-serif;
  --mono:'JetBrains Mono',ui-monospace,monospace;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--body);color:var(--nero);background:var(--carta);line-height:1.55;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.wrap{max-width:1180px;margin:0 auto;padding:0 24px}

.code{font-family:var(--mono);font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--grigio)}

/* =============== HEADER =============== */
header{position:sticky;top:0;z-index:50;background:var(--nero);border-bottom:3px solid var(--giallo)}
.nav{display:flex;align-items:center;justify-content:space-between;height:120px}
.brand{font-family:var(--display);font-weight:900;color:var(--bianco);font-size:20px;letter-spacing:.02em;display:flex;align-items:center;gap:10px}
.brand-icon{width:auto;height:17px;display:block;flex:0 0 auto}
.nav .brand-icon{height:28px}
.nav .brand-logo{width:174px;height:auto;object-fit:contain;flex:0 0 auto}
.nav ul{display:flex;gap:28px;list-style:none}
.nav ul a{color:var(--chiaro);font-weight:500;font-size:14px;letter-spacing:.02em;padding:6px 0;position:relative}
.nav ul a:hover{color:var(--bianco)}
.nav ul a::after{content:"";position:absolute;left:0;bottom:0;width:0;height:2px;background:var(--giallo);transition:width .2s}
.nav ul a:hover::after,.nav ul a.active::after{width:100%}
.nav ul a.active{color:var(--bianco)}
.call{background:var(--giallo);color:var(--nero);font-family:var(--display);font-weight:800;font-size:14px;padding:10px 18px;letter-spacing:.03em;transition:background .15s;white-space:nowrap}
.call:hover{background:var(--bianco)}
.call-multi{display:flex;align-items:center;gap:7px}
.call-multi a:hover{text-decoration:underline}
.menu-btn{display:none;background:none;border:0;cursor:pointer;padding:8px}
.menu-btn span{display:block;width:24px;height:2px;background:var(--bianco);margin:5px 0}

/* =============== HERO HOME =============== */
.hero{background:var(--nero);color:var(--bianco);position:relative;overflow:hidden;padding:88px 0 96px}
.hero::before{content:"";position:absolute;inset:0;opacity:.05;background:repeating-linear-gradient(-45deg,var(--giallo) 0 2px,transparent 2px 26px);pointer-events:none}
.hero .wrap{position:relative}
.hero .wrap{padding-right:min(40vw,480px)}
.hero-logo{position:absolute;right:8px;bottom:-68px;width:min(38vw,440px);height:auto;filter:drop-shadow(0 18px 32px rgba(0,0,0,.28))}
.hero .loc{color:var(--giallo);font-family:var(--mono);font-size:13px;letter-spacing:.14em;text-transform:uppercase}
.hero h1{font-family:var(--display);font-weight:900;font-size:clamp(46px,9vw,104px);line-height:.92;letter-spacing:-.01em;margin:14px 0 6px;text-transform:uppercase}
.hero h1 .col{color:var(--giallo-scuro)}
.hero .sub{font-size:clamp(18px,2.4vw,24px);color:var(--chiaro);max-width:640px;margin-top:22px;font-weight:400}
.hero .actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:36px}

/* HERO pagine interne (compatto) */
.phero{background:var(--nero);color:var(--bianco);position:relative;overflow:hidden;padding:56px 0 52px}
.phero::before{content:"";position:absolute;inset:0;opacity:.05;background:repeating-linear-gradient(-45deg,var(--giallo) 0 2px,transparent 2px 26px)}
.phero .wrap{position:relative}
.phero .loc{color:var(--giallo);font-family:var(--mono);font-size:12px;letter-spacing:.14em;text-transform:uppercase}
.phero h1{font-family:var(--display);font-weight:900;font-size:clamp(34px,6vw,60px);line-height:1;text-transform:uppercase;margin-top:12px}
.phero p{color:var(--chiaro);max-width:640px;margin-top:16px;font-size:17px}

.btn{font-family:var(--display);font-weight:800;font-size:15px;letter-spacing:.03em;padding:14px 26px;transition:.15s;display:inline-flex;align-items:center;gap:10px;cursor:pointer}
.btn-y{background:var(--giallo);color:var(--nero)}
.btn-y:hover{background:var(--bianco)}
.btn-o{border:2px solid var(--grigio);color:var(--bianco)}
.btn-o:hover{border-color:var(--giallo);color:var(--giallo)}
.btn-d{background:var(--nero);color:var(--bianco)}
.btn-d:hover{background:var(--giallo-scuro);color:var(--nero)}

/* striscia dati tecnici */
.specs{background:var(--giallo);color:var(--nero)}
.specs .row{display:grid;grid-template-columns:repeat(3,1fr)}
.specs .cell{padding:22px 24px;border-right:2px solid rgba(20,22,26,.14)}
.specs .cell:last-child{border-right:0}
.specs .k{font-family:var(--display);font-weight:900;font-size:15px;text-transform:uppercase;letter-spacing:.02em}
.specs .v{font-size:14px;margin-top:2px}

/* =============== SEZIONI =============== */
section{padding:76px 0}
.lead{max-width:760px}
.sec-head{display:flex;align-items:baseline;gap:16px;margin-bottom:34px;flex-wrap:wrap}
.sec-head h2{font-family:var(--display);font-weight:900;font-size:clamp(28px,4vw,40px);text-transform:uppercase;letter-spacing:-.005em;line-height:1}
.sec-head .num{font-family:var(--mono);color:var(--giallo-scuro);font-size:14px;font-weight:500}
.rule{height:2px;background:var(--linea);flex:1;min-width:40px;align-self:center}

.prose p{color:#33363b;font-size:17px;margin-bottom:14px}
.prose strong{font-weight:600}

/* griglia prodotti / servizi */
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:2px;background:var(--linea);border:2px solid var(--linea)}
.grid2{display:grid;grid-template-columns:repeat(2,1fr);gap:2px;background:var(--linea);border:2px solid var(--linea)}
.card{background:var(--bianco);padding:30px 26px}
.card h3{font-family:var(--display);font-weight:800;font-size:19px;text-transform:uppercase;letter-spacing:.01em;margin-bottom:10px}
.card h3 .bar{display:block;width:34px;height:4px;background:var(--giallo);margin-bottom:14px}
.card p{color:#42454a;font-size:15px;margin-bottom:10px}
.card ul{list-style:none;font-size:15px;color:#42454a}
.card ul li{padding:5px 0 5px 18px;position:relative}
.card ul li::before{content:"";position:absolute;left:0;top:12px;width:7px;height:7px;background:var(--giallo);transform:skewX(-12deg)}

/* blocco servizio numerato (pagina servizi) */
.svc{display:grid;grid-template-columns:64px 1fr;gap:24px;padding:34px 0;border-bottom:1px solid var(--linea)}
.svc:last-child{border-bottom:0}
.svc .idx{font-family:var(--display);font-weight:900;font-size:40px;color:var(--linea);line-height:1}
.svc h3{font-family:var(--display);font-weight:800;font-size:22px;text-transform:uppercase;margin-bottom:8px}
.svc p{color:#33363b;font-size:16px;margin-bottom:8px}
.svc ul{list-style:none;font-size:15px;color:#42454a;margin-top:6px}
.svc ul li{padding:4px 0 4px 18px;position:relative}
.svc ul li::before{content:"";position:absolute;left:0;top:11px;width:7px;height:7px;background:var(--giallo);transform:skewX(-12deg)}
.svc-gallery{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:4px;height:300px;margin:16px 0 20px;overflow:hidden;background:var(--linea)}
.svc-gallery.three{grid-template-columns:repeat(3,minmax(0,1fr))}
.svc-gallery img{width:100%;height:100%;object-fit:cover}

/* impianti */
.plant{display:grid;grid-template-columns:1fr 1fr;gap:2px;background:var(--linea);border:2px solid var(--linea);margin-bottom:2px}
.plant .p{background:var(--bianco);padding:30px 26px}
.plant .code{margin-bottom:8px}
.plant h3{font-family:var(--display);font-weight:800;font-size:20px;text-transform:uppercase;margin-bottom:10px}
.plant .addr{font-size:16px;color:#33363b}
.tagline{font-family:var(--mono);font-size:13px;color:var(--grigio);margin-top:12px}

/* =============== CERTIFICAZIONI (LIVE) =============== */
.cert{background:var(--nero);color:var(--bianco)}
.cert .sec-head h2{color:var(--bianco)}
.cert .rule{background:var(--linea-scura)}
.cert .intro{color:var(--grigio-ch);max-width:660px;margin-bottom:30px;font-size:16px}
#certContent{max-width:920px}
.cert-section{padding:28px 0 8px;border-top:1px solid var(--linea-scura)}
.cert-section:first-child{padding-top:0;border-top:0}
.cert-section h3{font-family:var(--display);font-size:clamp(22px,3vw,30px);line-height:1.15;margin-bottom:14px;color:var(--bianco)}
.cert-section h3::after{content:"";display:block;width:42px;height:3px;background:var(--giallo);margin-top:10px}
.cert-list{display:grid;gap:10px}
.cert-item{display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:24px;padding:16px 18px;background:#1b1e23;border-left:3px solid var(--linea-scura)}
.cert-item:hover{border-left-color:var(--giallo)}
.cert-copy h4{font-family:var(--display);font-size:17px;line-height:1.2;color:var(--bianco)}
.cert-copy p{font-family:var(--mono);font-size:11px;line-height:1.6;color:var(--grigio-ch);margin-top:6px}
.cert-link{min-width:170px;background:var(--giallo);color:var(--nero);font-family:var(--display);font-weight:800;font-size:13px;text-align:center;padding:11px 16px;transition:.15s}
.cert-link:hover{background:var(--bianco)}
.cert-state{padding:40px 16px;font-family:var(--mono);font-size:14px;color:var(--grigio-ch);border:1px dashed var(--linea-scura)}
.cert-state.err{color:#ffb0a8;border-color:#4a2a28}

/* =============== CONTATTI =============== */
.contact{background:var(--chiaro)}
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px}
.info-block{margin-bottom:26px}
.info-block .code{margin-bottom:6px}
.info-block .big{font-family:var(--display);font-weight:800;font-size:22px;display:inline-block}
.info-block a.big:hover{color:var(--giallo-scuro)}
.info-block p{color:#42454a;font-size:16px}
form label{display:block;font-family:var(--mono);font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--grigio);margin:16px 0 6px}
form input,form textarea{width:100%;padding:12px 14px;border:2px solid var(--linea);background:var(--bianco);font-family:var(--body);font-size:15px;color:var(--nero)}
form input:focus,form textarea:focus{outline:none;border-color:var(--giallo)}
form textarea{resize:vertical;min-height:120px}
.consent{display:flex;gap:10px;align-items:flex-start;margin-top:16px;font-size:13px;color:#42454a}
.consent input{width:auto;margin-top:3px}
.consent label{margin:0;text-transform:none;letter-spacing:0;font-family:var(--body);color:#42454a}
form button{margin-top:20px;border:0}
.form-msg{margin-top:14px;font-family:var(--mono);font-size:13px;display:none}
.form-msg.ok{display:block;color:#2c7a3f}
.form-msg.ko{display:block;color:#b0392f}
.map-embed{border:2px solid var(--linea);width:100%;height:340px;filter:grayscale(.3)}

/* CTA a fondo pagina */
.cta{background:var(--giallo);color:var(--nero);text-align:center}
.cta h2{font-family:var(--display);font-weight:900;font-size:clamp(26px,4vw,40px);text-transform:uppercase;margin-bottom:8px}
.cta p{font-size:17px;margin-bottom:24px}

/* =============== FOOTER =============== */
footer{background:var(--nero);color:var(--grigio-ch);padding:52px 0 30px}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:36px;margin-bottom:36px}
footer .brand{margin-bottom:14px;flex-direction:column;align-items:flex-start;gap:10px}
footer .brand-logo{width:174px;height:auto;object-fit:contain;object-position:left center}
footer h4{font-family:var(--mono);font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--giallo);margin-bottom:12px}
footer p,footer a{font-size:14px;line-height:1.7}
footer a:hover{color:var(--bianco)}
footer nav a{display:block}
.foot-bar{border-top:1px solid var(--linea-scura);padding-top:20px;font-size:12px;font-family:var(--mono);letter-spacing:.04em;display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px}

/* =============== RESPONSIVE =============== */
@media(max-width:1100px){
  .nav ul,.nav .call{display:none}
  .menu-btn{display:block;position:absolute;right:24px;top:50%;z-index:2;width:40px;height:40px;transform:translateY(-50%)}
  .nav ul.open{display:flex;position:absolute;top:120px;left:0;right:0;background:var(--nero);flex-direction:column;padding:16px 24px;gap:4px;border-bottom:3px solid var(--giallo)}
  .nav ul.open a{padding:12px 0}
  .grid3,.grid2,.plant{grid-template-columns:1fr}
  .specs .row{grid-template-columns:1fr}
  .specs .cell{border-right:0;border-bottom:2px solid rgba(20,22,26,.14)}
  .specs .cell:last-child{border-bottom:0}
  .contact-grid{grid-template-columns:1fr;gap:36px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:26px}
  .svc{grid-template-columns:1fr;gap:8px}
  .svc .idx{font-size:32px}
  .hero .wrap{padding-right:24px}
  .hero-logo{position:relative;right:auto;bottom:auto;width:min(100%,560px);margin:34px auto 0;transform:none}
  .cert-item{grid-template-columns:1fr;gap:14px}
  .cert-link{width:100%;min-width:0}
}
@media(max-width:520px){.foot-grid{grid-template-columns:1fr}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}

/* =============== HOME FOTOGRAFICA =============== */
.photo-home .hero .wrap{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(360px,.9fr);gap:54px;align-items:center;padding-right:24px}
.photo-home .hero-copy{position:relative;z-index:2}
.photo-home .hero h1{font-size:clamp(46px,7.2vw,92px)}
.photo-home .hero-media{position:relative;align-self:stretch;min-height:470px;border-left:4px solid var(--giallo);overflow:hidden;background:#25282d}
.photo-home .hero-media::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(20,22,26,.35),transparent 38%),linear-gradient(0deg,rgba(20,22,26,.45),transparent 48%);pointer-events:none}
.photo-home .hero-photo{width:100%;height:100%;object-fit:cover;object-position:58% center;filter:saturate(.82) contrast(1.08)}
.photo-home .hero-mark{position:absolute;z-index:2;right:22px;top:20px;width:174px;height:auto;filter:drop-shadow(0 8px 16px rgba(0,0,0,.45))}
.photo-home .photo-caption{position:absolute;z-index:2;left:22px;bottom:18px;color:var(--bianco);font-family:var(--mono);font-size:11px;letter-spacing:.1em;text-transform:uppercase}
.photo-home .production-layout{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:50px;align-items:center}
.photo-home .production-photo{min-height:390px;height:100%;width:100%;object-fit:cover;object-position:center;border-bottom:5px solid var(--giallo);filter:saturate(.78) contrast(1.06)}
.photo-home .photo-card{padding:0;overflow:hidden}
.photo-home .photo-card-media{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));height:190px;gap:2px;background:var(--linea);overflow:hidden}
.photo-home .photo-card-media.single{grid-template-columns:1fr}
.photo-home .photo-card-media img{width:100%;height:100%;object-fit:cover;filter:saturate(.78) contrast(1.05)}
.photo-home .photo-card:nth-child(1) img{object-position:center 58%}
.photo-home .photo-card-content{padding:26px}

@media(max-width:960px){
  .photo-home .hero .wrap{grid-template-columns:minmax(0,1fr);gap:42px}
  .photo-home .hero-copy,.photo-home .hero-media{min-width:0}
  .photo-home .hero-media{min-height:420px}
  .photo-home .production-layout{grid-template-columns:1fr}
  .photo-home .production-photo{min-height:320px;max-height:480px}
}
@media(max-width:620px){
  section{padding:56px 0}
  .wrap{padding-left:20px;padding-right:20px}
  .phero{padding:44px 0 42px}
  .phero h1{font-size:clamp(32px,9vw,38px)}
  .sec-head{align-items:flex-start;gap:8px;margin-bottom:26px}
  .sec-head .num{flex-basis:100%}
  .sec-head h2{font-size:clamp(27px,8vw,32px)}
  .sec-head .rule{display:none}
  .svc{padding:28px 0}
  body:not(.photo-home) .hero{padding:48px 0 60px}
  body:not(.photo-home) .hero .wrap{padding-right:20px}
  body:not(.photo-home) .hero-logo{width:min(76vw,290px);margin:0 auto 28px}
  body:not(.photo-home) .hero h1{font-size:clamp(40px,12vw,50px)}
  body:not(.photo-home) .hero .sub{font-size:17px}
  body:not(.photo-home) .hero .actions{flex-direction:column;align-items:stretch}
  body:not(.photo-home) .hero .actions .btn{justify-content:center;text-align:center}
  .photo-home .hero{padding:64px 0 70px}
  .nav{height:100px}
  .nav .brand,.photo-home .nav .brand{font-size:0;gap:0}
  .photo-home .nav .brand-icon{height:24px}
  .nav .brand-logo,.photo-home .nav .brand-logo{width:132px;height:auto}
  .menu-btn{position:fixed;right:24px;top:30px;transform:none}
  .nav ul.open{top:100px}
  .photo-home .hero h1{font-size:clamp(34px,9vw,40px)}
  .photo-home .hero .loc{font-size:10px;letter-spacing:.1em}
  .photo-home .hero .sub{font-size:17px}
  .photo-home .hero .actions{flex-direction:column;align-items:stretch}
  .photo-home .hero .actions .btn{justify-content:center;text-align:center}
  .photo-home .hero-media{min-height:330px}
  .photo-home .hero-mark{width:132px;right:14px;top:14px}
  .photo-home .photo-caption{left:14px;bottom:12px;font-size:9px}
  .photo-home .photo-card img{height:210px}
  .photo-home .photo-card-media{height:210px}
  .svc-gallery{height:195px;margin:14px 0 18px}
}