/* fotovoltaicoimprese.com – OrbiLead · foglio di stile unico, mobile-first, nessun font esterno */
:root{
  --ar:#FFB300;          /* arancione OrbiLead (logo) */
  --ar-scuro:#9A5B00;    /* arancione per testo su bianco (contrasto AA) */
  --ar-chiaro:#FFF4D6;
  --an:#24282C;          /* antracite al posto del nero */
  --an2:#3A4046;
  --tx:#24282C;
  --tx2:#4F575F;
  --bg:#FFFFFF;
  --bg2:#F5F5F2;
  --bd:#DADAD4;
  --ok:#1E7B3A;
  --err:#B42318;
  --r:12px;
  --w:1120px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;font:17px/1.6 system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;color:var(--tx);background:var(--bg)}
img{max-width:100%;height:auto;display:block}
a{color:var(--ar-scuro);text-underline-offset:2px}
a:hover{color:var(--an)}
h1,h2,h3{line-height:1.2;margin:1.6em 0 .5em;color:var(--an)}
h1{font-size:clamp(1.8rem,5.5vw,2.8rem);margin-top:.3em;letter-spacing:-.01em}
h2{font-size:clamp(1.35rem,3.6vw,1.8rem)}
h3{font-size:1.15rem}
p,ul,ol{margin:0 0 1em}
li{margin-bottom:.35em}
.wrap{max-width:var(--w);margin:0 auto;padding-left:max(20px,env(safe-area-inset-left,0px));padding-right:max(20px,env(safe-area-inset-right,0px))}
.skip{position:absolute;left:-9999px}
.skip:focus{left:16px;top:8px;z-index:99;background:#fff;padding:8px}

/* testata */
.top{background:var(--an);color:#fff;position:sticky;top:0;z-index:20}
.top .wrap{display:flex;align-items:center;gap:12px;min-height:60px}
.brand{display:flex;align-items:center;gap:10px;color:#fff;text-decoration:none;font-weight:800;font-size:1.05rem;margin-right:auto}
.brand img{width:40px;height:40px;border-radius:9px}
.brand small{display:block;font-weight:500;font-size:.72rem;color:#d8d8d8;letter-spacing:.02em}
.nav{position:relative}
.nav summary{list-style:none;cursor:pointer;color:#fff;border:1px solid #5b636b;border-radius:8px;padding:6px 12px;font-weight:600}
.nav summary::-webkit-details-marker{display:none}
.nav ul{list-style:none;margin:0;padding:8px;position:absolute;right:0;top:44px;background:var(--an);border-radius:10px;min-width:240px;box-shadow:0 10px 30px rgba(0,0,0,.3)}
.nav li{margin:0}
.nav a{display:block;color:#fff;text-decoration:none;padding:9px 12px;border-radius:7px}
.nav a:hover,.nav a[aria-current]{background:var(--an2);color:var(--ar)}
.btn{display:inline-block;background:var(--ar);color:var(--an);font-weight:800;text-decoration:none;border:0;border-radius:10px;padding:12px 18px;cursor:pointer;font-size:1rem;line-height:1.2;text-align:center}
.btn:hover{background:#ffc53d;color:var(--an)}
.btn.sec{background:transparent;color:inherit;border:2px solid currentColor}
.btn.wa{background:#1F7A45;color:#fff}
.top .btn{padding:9px 14px;font-size:.92rem;display:none}
@media(min-width:960px){
  .nav summary{display:none}
  .nav ul{display:flex!important;position:static;background:none;box-shadow:none;padding:0;min-width:0;gap:2px}
  .nav a{padding:8px 10px;font-size:.95rem}
  .top .btn{display:inline-block}
}
@media(max-width:959px){.nav:not([open]) ul{display:none}}

/* briciole */
.crumbs{font-size:.88rem;color:var(--tx2);padding-top:12px}
.crumbs ol{list-style:none;padding:0;margin:0;display:flex;flex-wrap:wrap;gap:4px}
.crumbs li{margin:0}
.crumbs li+li::before{content:"›";margin:0 6px 0 2px;color:#999}

/* apertura */
.hero{padding-top:8px;padding-bottom:24px}
.hero .grid{display:grid;gap:20px}
.kicker{display:inline-block;background:var(--ar-chiaro);color:var(--ar-scuro);font-weight:700;font-size:.82rem;padding:4px 10px;border-radius:99px;text-transform:uppercase;letter-spacing:.04em}
.lead{font-size:1.12rem;color:var(--tx2)}
.answer{background:var(--bg2);border-left:4px solid var(--ar);padding:14px 16px;border-radius:0 var(--r) var(--r) 0;margin:16px 0}
.answer p:last-child{margin:0}
.hero figure{margin:0}
.hero img{border-radius:var(--r);aspect-ratio:16/9;object-fit:cover;width:100%}
figcaption{font-size:.8rem;color:var(--tx2);margin-top:6px}
.ctas{display:flex;flex-wrap:wrap;gap:10px;margin:18px 0 6px}
.meta{font-size:.85rem;color:var(--tx2)}
@media(min-width:900px){.hero .grid{grid-template-columns:1.1fr .9fr;align-items:center}}

/* contenuto */
.content{display:grid;gap:32px;padding-bottom:24px}
.prose{max-width:760px}
.prose table{width:100%;border-collapse:collapse;font-size:.95rem;margin:0 0 1.2em;display:block;overflow-x:auto}
.prose th,.prose td{border:1px solid var(--bd);padding:8px 10px;text-align:left;vertical-align:top}
.prose th{background:var(--bg2)}
.note{font-size:.9rem;color:var(--tx2)}
.box{background:var(--bg2);border-radius:var(--r);padding:16px 18px;margin:0 0 1.2em}
.box h3{margin-top:0}
.cards{display:grid;gap:14px;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));margin:12px 0 20px}
.card{border:1px solid var(--bd);border-radius:var(--r);padding:16px;background:#fff;text-decoration:none;color:var(--tx);display:block}
.card:hover{border-color:var(--ar);box-shadow:0 4px 18px rgba(0,0,0,.06)}
.card b{display:block;color:var(--an);margin-bottom:4px}
.card span{font-size:.92rem;color:var(--tx2)}
.steps{counter-reset:s;list-style:none;padding:0}
.steps li{counter-increment:s;position:relative;padding-left:44px;margin-bottom:14px}
.steps li::before{content:counter(s);position:absolute;left:0;top:0;width:30px;height:30px;border-radius:50%;background:var(--ar);color:var(--an);font-weight:800;display:flex;align-items:center;justify-content:center}
.gallery{display:grid;gap:10px;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));margin:10px 0 24px}
.gallery img{border-radius:10px;aspect-ratio:16/9;object-fit:cover;width:100%}
.sources{font-size:.9rem;border-top:1px solid var(--bd);padding-top:12px;margin-top:24px}
.sources ul{padding-left:18px}
.faq details{border:1px solid var(--bd);border-radius:10px;padding:12px 14px;margin-bottom:10px;background:#fff}
.faq summary{font-weight:700;cursor:pointer;color:var(--an)}
.faq details p{margin:10px 0 0}
.author{display:flex;gap:12px;align-items:center;font-size:.9rem;color:var(--tx2);border-top:1px solid var(--bd);padding-top:12px;margin-top:20px}

/* modulo */
.formbox{background:var(--an);color:#fff;border-radius:16px;padding:20px 16px;margin:8px 0 32px}
.formbox h2{color:#fff;margin-top:0}
.formbox p{color:#e2e2e2}
.formbox a{color:var(--ar)}
.f-grid{display:grid;gap:12px}
@media(min-width:700px){.f-grid{grid-template-columns:1fr 1fr}.f-grid .full{grid-column:1/-1}.formbox{padding:28px}}
.formbox label{display:block;font-weight:600;font-size:.92rem;margin-bottom:4px}
.formbox input,.formbox select,.formbox textarea{width:100%;font:inherit;font-size:16px;padding:11px 12px;border-radius:9px;border:1px solid #5b636b;background:#fff;color:var(--tx)}
.formbox textarea{min-height:90px}
.formbox fieldset{border:0;padding:0;margin:0}
.formbox legend{font-weight:800;color:var(--ar);margin-bottom:8px;font-size:.95rem}
.chk{display:flex!important;gap:10px;align-items:flex-start;font-weight:400!important;font-size:.88rem!important;color:#e2e2e2}
.chk input{width:20px;height:20px;flex:0 0 20px;margin-top:2px}
.hp{position:absolute!important;left:-5000px!important;width:1px;height:1px;overflow:hidden}
.f-msg{margin-top:12px;padding:12px 14px;border-radius:9px;display:none;font-weight:600}
.f-msg.ok{display:block;background:#E3F4E8;color:var(--ok)}
.f-msg.err{display:block;background:#FDE8E7;color:var(--err)}
.f-send{margin-top:14px;display:flex;flex-wrap:wrap;gap:10px;align-items:center}

/* piè di pagina */
.foot{background:var(--an);color:#d8d8d8;font-size:.9rem;padding:32px 0 96px;margin-top:24px}
.foot a{color:#fff}
.foot .cols{display:grid;gap:20px}
@media(min-width:800px){.foot .cols{grid-template-columns:1.3fr 1fr 1fr}.foot{padding-bottom:32px}}
.foot h2{color:#fff;font-size:1rem;margin:0 0 8px}
.foot ul{list-style:none;padding:0;margin:0}

/* barra fissa sul telefono */
.mbar{position:fixed;left:0;right:0;bottom:0;z-index:30;display:flex;gap:8px;padding:8px 10px calc(8px + env(safe-area-inset-bottom));background:rgba(36,40,44,.97)}
.mbar a{flex:1;padding:12px 8px;font-size:.95rem}
@media(min-width:800px){.mbar{display:none}}

/* preventivo a passi */
.passi{display:flex;flex-direction:column;gap:6px;margin:0 0 14px}
.passi-t{font-weight:700;color:inherit}
.passi-b{display:block;height:6px;background:rgba(255,255,255,.25);border-radius:99px;overflow:hidden}
.passi-b i{display:block;height:100%;width:0;background:var(--ar);transition:width .25s}
.scelte{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:8px;margin:4px 0 6px}
.scelta{font:inherit;font-size:.95rem;text-align:left;padding:12px 14px;border:2px solid var(--bd);border-radius:10px;background:var(--bg);color:var(--tx);cursor:pointer;min-height:48px}
.scelta:hover{border-color:var(--ar)}
.scelta[aria-checked=true]{border-color:var(--ar);background:var(--ar-chiaro);font-weight:700}
.f-nav{grid-column:1/-1;display:flex;gap:10px;justify-content:space-between}
.f-nav .avanti{margin-left:auto}
.f-nav [hidden],.formbox [hidden]{display:none!important}
@media (prefers-reduced-motion:reduce){.passi-b i{transition:none}}