/* Layout: sito vetrina multi-pagina a griglia larga, header sticky, blocchi alternati chiaro/scuro, rigore da tavola tecnica (quote, misure, classi energetiche). */
:root{
  --bg:#F4F6F5;          /* calce */
  --surface:#FFFFFF;
  --ink:#10222E;         /* blu profondo del golfo */
  --muted:#4E6068;
  --line:#D5DCDA;
  --deep:#0E2A3B;        /* sezioni scure */
  --deep-ink:#EAF0EE;
  --deep-muted:#9FB3BC;
  --accent:#C9861F;      /* ocra: il sole di Corte del Sole */
  --accent-ink:#1A1204;
  --ok:#2F7D5B; --warn:#B7791F;
  --f-display:"Schibsted Grotesk",system-ui,sans-serif;
  --f-body:"Public Sans",system-ui,sans-serif;
  --f-mono:"IBM Plex Mono",ui-monospace,monospace;
  --wrap:1180px; --gut:clamp(16px,4vw,32px);
}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){
  --bg:#0B1A24;--surface:#12293A;--ink:#EAF0EE;--muted:#9FB3BC;--line:#24404F;--deep:#071219;--deep-ink:#EAF0EE;--deep-muted:#8FA5AF;--accent:#E0A03A;--accent-ink:#1A1204;--ok:#5CC49A;--warn:#E0A03A;color-scheme:dark}}
:root[data-theme="dark"]{--bg:#0B1A24;--surface:#12293A;--ink:#EAF0EE;--muted:#9FB3BC;--line:#24404F;--deep:#071219;--deep-ink:#EAF0EE;--deep-muted:#8FA5AF;--accent:#E0A03A;--accent-ink:#1A1204;--ok:#5CC49A;--warn:#E0A03A;color-scheme:dark}

*{box-sizing:border-box}
body{background:var(--bg);color:var(--ink);font:400 16px/1.6 var(--f-body);margin:0;padding-inline:0}
h1,h2,h3{font-family:var(--f-display);line-height:1.08;margin:0;text-wrap:balance;letter-spacing:-.02em}
h1{font-size:clamp(2.4rem,6.4vw,4.8rem);font-weight:800}
h2{font-size:clamp(1.8rem,3.8vw,2.8rem);font-weight:700}
h3{font-size:1.25rem;font-weight:700;letter-spacing:-.01em}
p{margin:0}
a{color:inherit}
.wrap{max-width:var(--wrap);margin-inline:auto;padding-inline:var(--gut)}
.label{font:500 .75rem/1 var(--f-mono);letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}
.dark .label{color:var(--deep-muted)}
.lead{font-size:1.15rem;color:var(--muted);max-width:62ch}
.dark .lead{color:var(--deep-muted)}
:focus-visible{outline:3px solid var(--accent);outline-offset:3px}

/* Header */
.top{position:sticky;top:env(safe-area-inset-top,0px);z-index:50;background:color-mix(in srgb,var(--bg) 92%,transparent);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.top .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:68px}
.logo{display:flex;align-items:center;gap:10px;text-decoration:none;font:800 1.2rem var(--f-display);letter-spacing:.02em}
.logo small{display:block;font:500 .6rem var(--f-mono);letter-spacing:.14em;color:var(--muted);text-transform:uppercase;margin-top:2px}
.logo svg{width:34px;height:34px;flex:none}
nav ul{display:flex;gap:4px;list-style:none;margin:0;padding:0}
nav a{display:block;padding:8px 12px;border-radius:6px;text-decoration:none;font-weight:500;font-size:.92rem;color:var(--muted)}
nav a:hover,nav a[aria-current="page"]{color:var(--ink);background:color-mix(in srgb,var(--accent) 16%,transparent)}
.burger{display:none;background:none;border:1px solid var(--line);color:var(--ink);border-radius:8px;padding:9px 12px;font:600 .85rem var(--f-body);cursor:pointer}
@media(max-width:940px){
  .burger{display:block}
  nav{position:absolute;left:0;right:0;top:100%;background:var(--bg);border-bottom:1px solid var(--line);display:none}
  nav.open{display:block}
  nav ul{flex-direction:column;padding:8px var(--gut) 16px}
  nav a{padding:12px 8px;font-size:1rem}
}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 22px;border-radius:6px;font:600 .95rem var(--f-body);text-decoration:none;border:1.5px solid transparent;cursor:pointer;transition:transform .15s,background .15s}
.btn:hover{transform:translateY(-1px)}
.btn-primary{background:var(--accent);color:var(--accent-ink)}
.btn-ghost{border-color:currentColor;background:transparent;color:inherit}
.btn-ghost:hover{background:color-mix(in srgb,currentColor 10%,transparent)}
.btn-sm{padding:9px 14px;font-size:.85rem}
.btn[disabled]{opacity:.5;cursor:not-allowed;transform:none}
.row{display:flex;flex-wrap:wrap;gap:12px}

/* Sections */
.page{display:none}
.page.on{display:block;animation:fade .35s ease}
@keyframes fade{from{opacity:.001;transform:translateY(6px)}to{opacity:1;transform:none}}
@media(prefers-reduced-motion:reduce){.page.on{animation:none}.btn:hover{transform:none}}
.sec{padding-block:clamp(48px,8vw,96px)}
.sec.dark{background:var(--deep);color:var(--deep-ink)}
.sec.alt{background:var(--surface);border-block:1px solid var(--line)}
.sec-head{display:grid;gap:14px;margin-bottom:40px;max-width:760px}
.page-head{padding-block:clamp(40px,7vw,80px) clamp(28px,4vw,48px)}
.page-head .lead{margin-top:18px}

/* Hero */
.hero{background:var(--deep);color:var(--deep-ink);position:relative;overflow:hidden}
.hero .wrap{display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(24px,5vw,64px);align-items:center;padding-block:clamp(40px,7vw,88px)}
.hero h1 em{font-style:normal;color:var(--accent)}
.hero .lead{margin:22px 0 30px;color:var(--deep-muted)}
.hero-art{aspect-ratio:4/5;max-width:100%;border-radius:4px;overflow:hidden;position:relative;border:1px solid #24404F}
@media(max-width:820px){.hero .wrap{grid-template-columns:1fr}.hero-art{aspect-ratio:16/11}}
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:1px;background:var(--line);border:1px solid var(--line)}
.stat{background:var(--surface);padding:22px 20px;display:grid;gap:6px}
.stat b{font:700 2rem var(--f-display);letter-spacing:-.02em;font-variant-numeric:tabular-nums}
.stat span{font-size:.85rem;color:var(--muted)}

/* Placeholder illustrations */
.ph{display:block;width:100%;height:100%;background:var(--ph-bg,#173E55)}
.ph .sky{fill:var(--ph-bg)}
.tile-img{aspect-ratio:16/10;position:relative;overflow:hidden;background:#173E55}
.tile-img .tag{position:absolute;left:10px;bottom:10px;font:500 .65rem var(--f-mono);letter-spacing:.1em;text-transform:uppercase;background:rgba(7,18,25,.78);color:#EAF0EE;padding:5px 8px;border-radius:3px}

/* Grids & cards */
.grid{display:grid;gap:20px;grid-template-columns:repeat(auto-fill,minmax(min(100%,300px),1fr))}
.card{background:var(--surface);border:1px solid var(--line);border-radius:6px;overflow:hidden;display:flex;flex-direction:column;min-width:0}
.card .body{padding:22px;display:flex;flex-direction:column;gap:12px;flex:1}
.card .body p{color:var(--muted);font-size:.95rem}
.card .body .push{margin-top:auto;padding-top:6px}
.svc-ico{width:44px;height:44px;border-radius:6px;background:color-mix(in srgb,var(--accent) 18%,transparent);display:grid;place-items:center;color:var(--accent)}
.svc-ico svg{width:24px;height:24px}
.meta{display:flex;flex-wrap:wrap;gap:6px 14px;font:500 .78rem var(--f-mono);color:var(--muted)}
.pill{display:inline-block;font:500 .7rem var(--f-mono);letter-spacing:.08em;text-transform:uppercase;padding:4px 9px;border-radius:99px;border:1px solid currentColor}
.pill.ok{color:var(--ok)}.pill.warn{color:var(--warn)}
.demo{font:500 .65rem var(--f-mono);letter-spacing:.08em;text-transform:uppercase;color:var(--muted);border:1px dashed var(--muted);padding:3px 7px;border-radius:3px;white-space:nowrap}
.dark .demo{color:var(--deep-muted);border-color:var(--deep-muted)}

/* Progress */
.prog{display:grid;gap:6px}
.prog .bar{height:8px;background:var(--line);border-radius:4px;overflow:hidden}
.prog .bar i{display:block;height:100%;background:var(--accent)}
.prog .top-row{display:flex;justify-content:space-between;font:500 .78rem var(--f-mono);color:var(--muted)}
.energy{display:inline-flex;align-items:center;justify-content:center;min-width:34px;height:26px;padding-inline:8px;background:var(--ok);color:#06140D;font:700 .85rem var(--f-mono);border-radius:3px}

/* Feature project */
.feature{display:grid;grid-template-columns:1.1fr 1fr;gap:0;background:var(--surface);border:1px solid var(--line);border-radius:6px;overflow:hidden}
.feature .body{padding:clamp(22px,4vw,44px);display:grid;gap:16px;align-content:center}
.feature .tile-img{aspect-ratio:auto;min-height:320px}
@media(max-width:820px){.feature{grid-template-columns:1fr}.feature .tile-img{min-height:0;aspect-ratio:16/10}}
.specs{display:grid;grid-template-columns:repeat(auto-fit,minmax(130px,1fr));gap:12px;margin:0;padding:0;list-style:none}
.specs li{border-top:1px solid var(--line);padding-top:10px;display:grid;gap:2px}
.specs li b{font:500 .68rem var(--f-mono);letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}
.specs li span{font-weight:600}

/* Two col text */
.two{display:grid;grid-template-columns:1fr 1fr;gap:clamp(24px,5vw,64px);align-items:start}
@media(max-width:820px){.two{grid-template-columns:1fr}}
.prose{display:grid;gap:16px;max-width:64ch}
.prose p{color:var(--muted)}
.dark .prose p{color:var(--deep-muted)}
.values{display:grid;gap:0;margin:0;padding:0;list-style:none}
.values li{display:grid;grid-template-columns:auto 1fr;gap:16px;padding:18px 0;border-top:1px solid #24404F}
.values li:last-child{border-bottom:1px solid #24404F}
.values .k{font:500 .8rem var(--f-mono);color:var(--accent);padding-top:4px}
.values h3{margin-bottom:4px}
.values p{color:var(--deep-muted);font-size:.95rem}

/* Timeline */
.tl{list-style:none;margin:0;padding:0;display:grid;gap:0;border-left:2px solid var(--line);margin-left:6px}
.tl li{padding:0 0 26px 24px;position:relative}
.tl li::before{content:"";position:absolute;left:-7px;top:6px;width:12px;height:12px;background:var(--accent);border-radius:50%}
.tl .y{font:500 .8rem var(--f-mono);color:var(--muted)}

/* Filters */
.filters{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:26px;align-items:center}
.chip{background:transparent;color:var(--ink);border:1px solid var(--line);border-radius:99px;padding:8px 16px;font:500 .85rem var(--f-body);cursor:pointer}
.chip[aria-pressed="true"]{background:var(--ink);color:var(--bg);border-color:var(--ink)}
select,input,textarea{font:inherit;color:var(--ink);background:var(--bg);border:1px solid var(--line);border-radius:6px;padding:12px 14px;width:100%;min-width:0}
select.inline{width:auto;padding:8px 12px}

/* Certifications */
.cert{display:grid;grid-template-columns:auto 1fr auto;gap:16px;align-items:center;padding:20px 0;border-top:1px solid var(--line)}
.cert:last-child{border-bottom:1px solid var(--line)}
.cert .seal{width:48px;height:48px;border-radius:50%;border:1.5px dashed var(--muted);display:grid;place-items:center;color:var(--muted);font:500 .65rem var(--f-mono)}
@media(max-width:560px){.cert{grid-template-columns:auto 1fr}.cert .demo{grid-column:2}}

/* FAQ */
details{border-top:1px solid var(--line);padding:18px 0}
details:last-of-type{border-bottom:1px solid var(--line)}
summary{cursor:pointer;font:600 1.05rem var(--f-display);list-style:none;display:flex;justify-content:space-between;gap:16px}
summary::after{content:"+";font:400 1.4rem/1 var(--f-mono);color:var(--accent)}
details[open] summary::after{content:"–"}
details p{color:var(--muted);margin-top:10px;max-width:64ch}
.quote{font:600 1.25rem/1.4 var(--f-display);letter-spacing:-.01em}

/* Form */
form{display:grid;gap:16px}
.fr{display:grid;grid-template-columns:1fr 1fr;gap:16px}
@media(max-width:620px){.fr{grid-template-columns:1fr}}
.fld{display:grid;gap:6px;min-width:0}
.fld label{font-weight:600;font-size:.88rem}
.fld .err{color:#C0392B;font-size:.82rem;min-height:0}
:root[data-theme="dark"] .fld .err{color:#FF8A7A}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .fld .err{color:#FF8A7A}}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.consent{display:grid;grid-template-columns:auto 1fr;gap:12px;align-items:start;font-size:.88rem;color:var(--muted)}
.consent input{width:20px;height:20px;margin-top:2px;accent-color:var(--accent)}
.contact-box{background:var(--deep);color:var(--deep-ink);padding:clamp(22px,4vw,36px);border-radius:6px;display:grid;gap:20px;align-content:start}
.contact-box dl{margin:0;display:grid;gap:16px}
.contact-box dt{font:500 .7rem var(--f-mono);letter-spacing:.14em;text-transform:uppercase;color:var(--deep-muted)}
.contact-box dd{margin:2px 0 0;font-weight:600;overflow-wrap:anywhere}
.contact-box dd a{text-decoration:none}
.note{font:400 .8rem/1.5 var(--f-mono);color:var(--muted);border:1px dashed var(--line);padding:12px 14px;border-radius:6px}
.thanks{text-align:left;padding-block:clamp(56px,10vw,120px);display:grid;gap:22px;justify-items:start}

/* Footer */
footer{background:var(--deep);color:var(--deep-ink);padding-block:56px 40px}
footer .cols{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px}
@media(max-width:820px){footer .cols{grid-template-columns:1fr 1fr}}
@media(max-width:520px){footer .cols{grid-template-columns:1fr}}
footer h4{font:500 .72rem var(--f-mono);letter-spacing:.14em;text-transform:uppercase;color:var(--deep-muted);margin:0 0 14px}
footer ul{list-style:none;margin:0;padding:0;display:grid;gap:8px}
footer a{text-decoration:none;color:var(--deep-ink)}
footer a:hover{color:var(--accent)}
footer .legal{margin-top:40px;padding-top:20px;border-top:1px solid #24404F;font-size:.82rem;color:var(--deep-muted);display:flex;flex-wrap:wrap;gap:8px 24px;justify-content:space-between}

/* Floating WhatsApp + cookie */
.wa{position:fixed;right:16px;bottom:calc(16px + env(safe-area-inset-bottom,0px));z-index:60;display:flex;align-items:center;gap:10px;background:#1FA855;color:#fff;text-decoration:none;padding:13px 18px;border-radius:99px;font-weight:600;box-shadow:0 6px 20px rgba(0,0,0,.28)}
.wa svg{width:22px;height:22px}
@media(max-width:560px){.wa span{display:none}.wa{padding:15px}}
.cookie{position:fixed;left:16px;right:16px;bottom:calc(16px + env(safe-area-inset-bottom,0px));z-index:70;max-width:560px;background:var(--surface);border:1px solid var(--line);box-shadow:0 10px 40px rgba(0,0,0,.25);padding:20px;border-radius:8px;display:grid;gap:14px}
.cookie p{font-size:.88rem;color:var(--muted)}
body.has-cookie .wa{bottom:calc(220px + env(safe-area-inset-bottom,0px))}
@media(min-width:700px){body.has-cookie .wa{bottom:calc(16px + env(safe-area-inset-bottom,0px))}}

[hidden]{display:none!important}
.page{display:block}