/* ============================================================
   NOVA BIOHOUSE — style.css
   Palette derivata dal cartellone: verdi naturali, bianco caldo,
   sabbia, accento dorato (luce tramonto dei render).
   ============================================================ */

:root{
  --verde-foresta:#1d3326;
  --verde-bosco:#26432f;
  --verde-oliva:#5f7a3a;
  --oliva-chiaro:#8aa05e;
  --bianco-caldo:#f7f4ec;
  --carta:#fdfbf6;
  --sabbia:#e8e1d0;
  --sabbia-scura:#d8cfb8;
  --oro:#c79a5c;
  --inchiostro:#1b231c;
  --grigio-testo:#4c554c;
  --bianco:#ffffff;

  --font-display:'Fraunces',Georgia,serif;
  --font-body:'Outfit',-apple-system,'Segoe UI',sans-serif;

  --maxw:1180px;
  --radius:18px;
  --radius-s:12px;
  --shadow:0 14px 40px rgba(27,35,28,.14);
  --shadow-s:0 6px 18px rgba(27,35,28,.10);
  --transizione:.28s cubic-bezier(.4,0,.2,1);
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation:none!important;transition:none!important}
}
body{
  font-family:var(--font-body);
  color:var(--inchiostro);
  background:var(--bianco-caldo);
  line-height:1.65;
  font-size:17px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul{list-style:none}

.container{max-width:var(--maxw);margin:0 auto;padding:0 22px}

/* ---------- Tipografia ---------- */
h1,h2,h3{font-family:var(--font-display);font-weight:600;line-height:1.15;color:var(--verde-foresta)}
h1{font-size:clamp(2.1rem,6.2vw,3.6rem);letter-spacing:-.01em}
h2{font-size:clamp(1.7rem,4.4vw,2.5rem)}
h3{font-size:1.22rem;font-weight:600}
.lead{font-size:clamp(1.05rem,2.4vw,1.25rem);color:var(--grigio-testo);max-width:42em}
.accent{color:var(--verde-oliva);font-style:italic}

.eyebrow{
  display:inline-flex;align-items:center;gap:.55em;
  font-size:.8rem;font-weight:600;letter-spacing:.18em;text-transform:uppercase;
  color:var(--verde-oliva);margin-bottom:14px;
}
.eyebrow::before{
  content:'';width:26px;height:2px;background:var(--verde-oliva);border-radius:2px;
}

/* ---------- Pulsanti ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.55em;
  padding:.95em 1.9em;border-radius:999px;font-weight:600;font-size:1rem;
  border:2px solid transparent;cursor:pointer;transition:var(--transizione);
  font-family:var(--font-body);
}
.btn svg{width:1.15em;height:1.15em;flex:none}
.btn-primario{background:var(--verde-foresta);color:var(--bianco-caldo)}
.btn-primario:hover{background:var(--verde-bosco);transform:translateY(-2px);box-shadow:var(--shadow-s)}
.btn-secondario{background:transparent;color:var(--verde-foresta);border-color:var(--verde-foresta)}
.btn-secondario:hover{background:var(--verde-foresta);color:var(--bianco-caldo)}
.btn-chiaro{background:var(--bianco-caldo);color:var(--verde-foresta)}
.btn-chiaro:hover{background:var(--bianco);transform:translateY(-2px)}
.btn-bordo-chiaro{background:transparent;color:var(--bianco-caldo);border-color:rgba(247,244,236,.7)}
.btn-bordo-chiaro:hover{background:rgba(247,244,236,.14);border-color:var(--bianco-caldo)}
.btn-whatsapp{background:#1f8a4c;color:#fff}
.btn-whatsapp:hover{background:#17713d;transform:translateY(-2px)}
.btn:focus-visible{outline:3px solid var(--oro);outline-offset:3px}
a:focus-visible{outline:3px solid var(--oro);outline-offset:3px;border-radius:4px}

/* ---------- Header ---------- */
.header{
  position:fixed;inset:0 0 auto 0;z-index:90;
  transition:background .3s ease,box-shadow .3s ease;
  padding:14px 0;
}
.header.solido{background:rgba(253,251,246,.96);backdrop-filter:blur(10px);box-shadow:0 2px 18px rgba(27,35,28,.08)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:18px}
.brand{display:flex;align-items:center;gap:12px;font-family:var(--font-display)}
.brand img{width:46px;height:46px;border-radius:10px;object-fit:cover}
.brand-nome{font-size:1.12rem;font-weight:600;color:var(--verde-foresta);letter-spacing:.02em}
.brand-nome b{color:var(--verde-oliva);font-weight:600}
.header:not(.solido) .brand-nome{color:var(--bianco-caldo)}
.header:not(.solido).header-chiaro .brand-nome{color:var(--verde-foresta)}

.nav{display:flex;align-items:center;gap:28px}
.nav a{font-weight:500;font-size:.98rem;color:var(--verde-foresta);position:relative;padding:4px 0}
.header:not(.solido) .nav a{color:var(--bianco-caldo)}
.header:not(.solido).header-chiaro .nav a{color:var(--verde-foresta)}
.nav a::after{content:'';position:absolute;left:0;bottom:-2px;width:0;height:2px;background:var(--verde-oliva);transition:width .25s ease}
.nav a:hover::after,.nav a.attiva::after{width:100%}
.nav .btn{padding:.62em 1.4em;font-size:.92rem}

.hamburger{display:none;background:none;border:0;cursor:pointer;padding:8px;z-index:101}
.hamburger span{display:block;width:26px;height:2.5px;background:var(--verde-foresta);margin:5.5px 0;border-radius:2px;transition:var(--transizione)}
.header:not(.solido) .hamburger span{background:var(--bianco-caldo)}
.header:not(.solido).header-chiaro .hamburger span{background:var(--verde-foresta)}
body.menu-aperto .hamburger span{background:var(--bianco-caldo)!important}
body.menu-aperto .hamburger span:nth-child(1){transform:translateY(8px) rotate(45deg)}
body.menu-aperto .hamburger span:nth-child(2){opacity:0}
body.menu-aperto .hamburger span:nth-child(3){transform:translateY(-8px) rotate(-45deg)}

@media (max-width:880px){
  .hamburger{display:block}
  .nav{
    position:fixed;inset:0;background:var(--verde-foresta);
    flex-direction:column;justify-content:center;gap:30px;
    transform:translateX(100%);transition:transform .35s ease;z-index:100;
  }
  body.menu-aperto .nav{transform:translateX(0)}
  .nav a{color:var(--bianco-caldo)!important;font-size:1.35rem;font-family:var(--font-display)}
  body.menu-aperto{overflow:hidden}
}

/* ---------- Hero ---------- */
.hero{
  position:relative;min-height:100svh;display:flex;align-items:flex-end;
  color:var(--bianco-caldo);overflow:hidden;
}
.hero-bg{position:absolute;inset:0;z-index:-2}
.hero-bg img{width:100%;height:100%;object-fit:cover}
.hero::after{
  content:'';position:absolute;inset:0;z-index:-1;
  background:linear-gradient(180deg,rgba(29,51,38,.42) 0%,rgba(29,51,38,.12) 38%,rgba(20,33,24,.82) 100%);
}
.hero-contenuto{padding:120px 0 56px;width:100%}
.hero .eyebrow{color:var(--sabbia);font-size:.82rem}
.hero .eyebrow::before{background:var(--oro)}
.hero h1{color:var(--bianco-caldo);max-width:13em;margin-bottom:14px}
.hero h1 em{font-style:italic;color:#cfe0a8}
.hero-sub{font-size:clamp(1.05rem,2.6vw,1.3rem);font-weight:500;color:var(--sabbia);margin-bottom:10px}
.hero-testo{max-width:36em;color:rgba(247,244,236,.88);margin-bottom:30px;font-size:1.02rem}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px}
.hero-badge{
  display:inline-flex;align-items:center;gap:10px;
  background:rgba(247,244,236,.12);border:1px solid rgba(247,244,236,.28);
  backdrop-filter:blur(6px);border-radius:999px;padding:.5em 1.2em;
  font-size:.92rem;font-weight:500;margin-bottom:22px;
}
.hero-badge b{color:#e8d3ad;font-weight:600}
.scorri{
  position:absolute;left:50%;bottom:18px;transform:translateX(-50%);
  width:26px;height:42px;border:2px solid rgba(247,244,236,.5);border-radius:14px;
}
.scorri::after{
  content:'';position:absolute;left:50%;top:8px;width:4px;height:8px;margin-left:-2px;
  background:var(--bianco-caldo);border-radius:3px;animation:scorri 1.8s infinite;
}
@keyframes scorri{0%{opacity:1;transform:translateY(0)}70%{opacity:0;transform:translateY(14px)}100%{opacity:0}}

/* ---------- Sezioni ---------- */
.sezione{padding:84px 0}
.sezione-verde{background:var(--verde-foresta);color:var(--bianco-caldo)}
.sezione-verde h2,.sezione-verde h3{color:var(--bianco-caldo)}
.sezione-verde .lead{color:rgba(247,244,236,.82)}
.sezione-verde .eyebrow{color:var(--oliva-chiaro)}
.sezione-verde .eyebrow::before{background:var(--oliva-chiaro)}
.sezione-sabbia{background:var(--sabbia)}
.sezione-carta{background:var(--carta)}
.intestazione-sezione{max-width:680px;margin-bottom:46px}
.intestazione-sezione.centrata{margin-left:auto;margin-right:auto;text-align:center}
.intestazione-sezione.centrata .eyebrow{justify-content:center}
.intestazione-sezione h2{margin-bottom:14px}

/* ---------- Video ---------- */
.video-wrap{
  position:relative;border-radius:var(--radius);overflow:hidden;
  box-shadow:var(--shadow);aspect-ratio:16/9;background:var(--verde-foresta);
}
.video-wrap video{width:100%;height:100%;object-fit:cover;display:block}

/* ---------- Card vantaggi ---------- */
.griglia-vantaggi{display:grid;grid-template-columns:repeat(auto-fit,minmax(245px,1fr));gap:22px}
.card-vantaggio{
  background:var(--carta);border:1px solid rgba(95,122,58,.18);
  border-radius:var(--radius);padding:30px 26px;
  transition:var(--transizione);
}
.card-vantaggio:hover{transform:translateY(-5px);box-shadow:var(--shadow-s);border-color:rgba(95,122,58,.4)}
.card-vantaggio .icona{
  width:52px;height:52px;border-radius:14px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--verde-oliva),var(--verde-bosco));
  color:var(--bianco-caldo);margin-bottom:18px;
}
.card-vantaggio .icona svg{width:26px;height:26px}
.card-vantaggio h3{margin-bottom:8px}
.card-vantaggio p{font-size:.95rem;color:var(--grigio-testo)}
.sezione-verde .card-vantaggio{background:rgba(247,244,236,.06);border-color:rgba(247,244,236,.16)}
.sezione-verde .card-vantaggio p{color:rgba(247,244,236,.78)}
.sezione-verde .card-vantaggio:hover{border-color:rgba(247,244,236,.4)}

/* ---------- Progetto split ---------- */
.split{display:grid;grid-template-columns:1.05fr 1fr;gap:54px;align-items:center}
.split-img{border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
.split-img img{width:100%;height:100%;object-fit:cover}
.lista-spunta{margin-top:22px;display:grid;gap:12px}
.lista-spunta li{display:flex;gap:12px;align-items:flex-start;font-weight:500}
.lista-spunta li::before{
  content:'';flex:none;width:22px;height:22px;margin-top:2px;border-radius:50%;
  background:var(--verde-oliva) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23f7f4ec' stroke-width='3.4' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M5 13l4 4L19 7'/%3E%3C/svg%3E") center/13px no-repeat;
}
@media (max-width:880px){.split{grid-template-columns:1fr;gap:34px}}

/* ---------- Fascia prezzo ---------- */
.fascia-prezzo{
  background:linear-gradient(120deg,var(--verde-bosco),var(--verde-foresta));
  color:var(--bianco-caldo);border-radius:var(--radius);
  padding:38px 40px;display:flex;flex-wrap:wrap;gap:26px;align-items:center;justify-content:space-between;
  box-shadow:var(--shadow);margin-top:54px;
}
.fascia-prezzo .prezzo{font-family:var(--font-display);font-size:clamp(1.9rem,5vw,2.7rem);font-weight:600}
.fascia-prezzo .prezzo small{font-size:.45em;font-weight:500;color:var(--sabbia);font-family:var(--font-body)}
.fascia-prezzo .da{display:block;font-size:.85rem;letter-spacing:.16em;text-transform:uppercase;color:#cfe0a8;font-family:var(--font-body);font-weight:600;margin-bottom:2px}
.fascia-prezzo p{max-width:30em;color:rgba(247,244,236,.85);font-size:.98rem}

/* ---------- Optional ---------- */
.griglia-optional{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:22px}
.card-optional{
  position:relative;border-radius:var(--radius);overflow:hidden;
  background:var(--carta);border:1px solid var(--sabbia-scura);
  padding:30px 26px;transition:var(--transizione);
}
.card-optional:hover{transform:translateY(-5px);box-shadow:var(--shadow-s)}
.card-optional .tag{
  display:inline-block;font-size:.72rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase;
  color:var(--oro);border:1px solid var(--oro);border-radius:999px;padding:.3em 1em;margin-bottom:16px;
}
.card-optional h3{margin-bottom:8px}
.card-optional p{font-size:.95rem;color:var(--grigio-testo)}

/* ---------- Planimetrie / galleria ---------- */
.griglia-plan{display:grid;grid-template-columns:repeat(auto-fit,minmax(290px,1fr));gap:26px}
.card-plan{
  background:var(--carta);border-radius:var(--radius);overflow:hidden;
  box-shadow:var(--shadow-s);transition:var(--transizione);cursor:zoom-in;border:0;text-align:left;
  font-family:var(--font-body);font-size:1rem;padding:0;display:block;width:100%;
}
.card-plan:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
.card-plan .miniatura{aspect-ratio:4/3;overflow:hidden;background:var(--sabbia)}
.card-plan .miniatura img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease}
.card-plan:hover .miniatura img{transform:scale(1.05)}
.card-plan .info{padding:20px 22px 24px}
.card-plan .info h3{margin-bottom:6px}
.card-plan .info p{font-size:.92rem;color:var(--grigio-testo)}
.card-plan .ingrandisci{
  display:inline-flex;align-items:center;gap:6px;margin-top:12px;
  font-size:.86rem;font-weight:600;color:var(--verde-oliva);
}
.griglia-galleria{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:18px}
.foto-galleria{border-radius:var(--radius-s);overflow:hidden;cursor:zoom-in;aspect-ratio:4/3;background:var(--sabbia);border:0;padding:0}
.foto-galleria.larga{grid-column:span 2;aspect-ratio:21/9}
.foto-galleria img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease}
.foto-galleria:hover img{transform:scale(1.04)}
@media (max-width:640px){.foto-galleria.larga{grid-column:span 1;aspect-ratio:4/3}}

/* ---------- Lightbox ---------- */
.lightbox{
  position:fixed;inset:0;z-index:200;background:rgba(20,28,21,.93);
  display:none;align-items:center;justify-content:center;padding:30px;
}
.lightbox.aperto{display:flex}
.lightbox img{max-width:min(1100px,94vw);max-height:86vh;border-radius:10px;box-shadow:0 30px 80px rgba(0,0,0,.5);object-fit:contain}
.lightbox-chiudi{
  position:absolute;top:18px;right:18px;width:46px;height:46px;border-radius:50%;
  background:rgba(247,244,236,.14);border:1px solid rgba(247,244,236,.35);color:var(--bianco-caldo);
  font-size:1.5rem;cursor:pointer;display:grid;place-items:center;transition:var(--transizione);
}
.lightbox-chiudi:hover{background:rgba(247,244,236,.28)}
.lightbox-didascalia{position:absolute;bottom:22px;left:50%;transform:translateX(-50%);color:var(--sabbia);font-size:.95rem;text-align:center;max-width:90%}

/* ---------- Sezione emozionale ---------- */
.citazione{
  font-family:var(--font-display);font-style:italic;
  font-size:clamp(1.35rem,3.6vw,2rem);line-height:1.45;color:var(--bianco-caldo);
  max-width:24em;margin:0 auto;text-align:center;
}
.citazione strong{color:#cfe0a8;font-weight:600}

/* ---------- CTA finale ---------- */
.cta-finale{text-align:center}
.cta-finale h2{margin-bottom:14px}
.cta-finale p{max-width:34em;margin:0 auto 32px;color:var(--grigio-testo)}
.cta-bottoni{display:flex;flex-wrap:wrap;gap:14px;justify-content:center}

/* ---------- Form ---------- */
.griglia-contatti{display:grid;grid-template-columns:1fr 1.2fr;gap:54px;align-items:start}
@media (max-width:880px){.griglia-contatti{grid-template-columns:1fr}}
.canale-contatto{
  display:flex;gap:16px;align-items:flex-start;padding:20px 0;
  border-bottom:1px solid rgba(95,122,58,.18);
}
.canale-contatto:last-child{border-bottom:0}
.canale-contatto .icona{
  width:46px;height:46px;flex:none;border-radius:12px;display:grid;place-items:center;
  background:var(--verde-foresta);color:var(--bianco-caldo);
}
.canale-contatto .icona svg{width:22px;height:22px}
.canale-contatto h3{font-size:1.05rem;margin-bottom:2px}
.canale-contatto a{font-weight:600;color:var(--verde-oliva)}
.canale-contatto a:hover{text-decoration:underline}
.canale-contatto p{font-size:.9rem;color:var(--grigio-testo)}

.form{
  background:var(--carta);border-radius:var(--radius);box-shadow:var(--shadow-s);
  padding:36px 32px;border:1px solid var(--sabbia-scura);
}
.form h3{margin-bottom:20px;font-size:1.35rem}
.campo{margin-bottom:18px}
.campo label{display:block;font-weight:600;font-size:.9rem;margin-bottom:6px}
.campo input,.campo textarea{
  width:100%;padding:.85em 1em;border-radius:var(--radius-s);
  border:1.5px solid var(--sabbia-scura);background:var(--bianco);
  font-family:var(--font-body);font-size:1rem;color:var(--inchiostro);
  transition:border-color .2s ease;
}
.campo input:focus,.campo textarea:focus{outline:0;border-color:var(--verde-oliva)}
.campo textarea{min-height:120px;resize:vertical}
.campo-privacy{display:flex;gap:10px;align-items:flex-start;font-size:.86rem;color:var(--grigio-testo);margin-bottom:22px}
.campo-privacy input{margin-top:4px;accent-color:var(--verde-oliva);width:18px;height:18px;flex:none}
.form .btn{width:100%}
.form-esito{display:none;margin-top:16px;padding:14px 18px;border-radius:var(--radius-s);background:#e7f0db;color:#2e4a1d;font-weight:500;font-size:.95rem}
.form-esito.visibile{display:block}

/* ---------- Footer ---------- */
.footer{background:var(--verde-foresta);color:rgba(247,244,236,.8);padding:56px 0 88px}
.footer-griglia{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px;margin-bottom:40px}
@media (max-width:760px){.footer-griglia{grid-template-columns:1fr}}
.footer .brand-nome{color:var(--bianco-caldo)}
.footer h4{color:var(--bianco-caldo);font-size:.85rem;letter-spacing:.16em;text-transform:uppercase;margin-bottom:16px}
.footer a:hover{color:var(--bianco-caldo);text-decoration:underline}
.footer li{margin-bottom:10px;font-size:.95rem}
.footer-base{border-top:1px solid rgba(247,244,236,.18);padding-top:22px;font-size:.85rem;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between}

/* ---------- WhatsApp flottante + barra mobile ---------- */
.whatsapp-flottante{
  position:fixed;right:18px;bottom:18px;z-index:80;
  width:58px;height:58px;border-radius:50%;display:grid;place-items:center;
  background:#1f8a4c;color:#fff;box-shadow:0 10px 26px rgba(31,138,76,.45);
  transition:var(--transizione);
}
.whatsapp-flottante:hover{transform:scale(1.08)}
.whatsapp-flottante svg{width:30px;height:30px}

.barra-mobile{
  position:fixed;inset:auto 0 0 0;z-index:85;display:none;
  background:rgba(29,51,38,.97);backdrop-filter:blur(8px);
  padding:10px 14px calc(10px + env(safe-area-inset-bottom));
  gap:10px;
}
.barra-mobile a{
  flex:1;display:flex;align-items:center;justify-content:center;gap:8px;
  padding:.8em;border-radius:12px;font-weight:600;font-size:.92rem;
}
.barra-mobile .bm-chiama{background:var(--bianco-caldo);color:var(--verde-foresta)}
.barra-mobile .bm-wa{background:#1f8a4c;color:#fff}
.barra-mobile svg{width:18px;height:18px}
@media (max-width:760px){
  .barra-mobile{display:flex}
  .whatsapp-flottante{display:none}
  .footer{padding-bottom:120px}
}

/* ---------- Hero pagine interne ---------- */
.hero-pagina{
  background:linear-gradient(160deg,var(--verde-foresta),var(--verde-bosco));
  color:var(--bianco-caldo);padding:150px 0 70px;
}
.hero-pagina h1{color:var(--bianco-caldo);margin-bottom:12px}
.hero-pagina .lead{color:rgba(247,244,236,.85)}
.hero-pagina .eyebrow{color:var(--oliva-chiaro)}
.hero-pagina .eyebrow::before{background:var(--oliva-chiaro)}

/* ---------- Reveal on scroll ---------- */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s ease,transform .7s ease}
.reveal.visibile{opacity:1;transform:none}

/* ---------- Tabella bioedilizia ---------- */
.confronto{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:22px;margin-top:10px}
.colonna-confronto{background:var(--carta);border-radius:var(--radius);padding:30px 28px;border:1px solid var(--sabbia-scura)}
.colonna-confronto.evidenza{background:var(--verde-foresta);color:var(--bianco-caldo);border-color:var(--verde-foresta)}
.colonna-confronto.evidenza h3{color:var(--bianco-caldo)}
.colonna-confronto h3{margin-bottom:16px}
.colonna-confronto li{padding:9px 0;border-bottom:1px dashed rgba(95,122,58,.25);font-size:.96rem}
.colonna-confronto.evidenza li{border-color:rgba(247,244,236,.2)}
.colonna-confronto li:last-child{border-bottom:0}

@media (max-width:640px){
  .sezione{padding:62px 0}
  .hero-contenuto{padding:110px 0 64px}
  .fascia-prezzo{padding:30px 26px}
}