/* ==========================================================
   EDILIZIA FEMA — foglio di stile principale
   Palette dal logo: mattone #C24952 · grafite #2B2A2E
   Display: Saira · Testo: Inter
   ========================================================== */
:root{
  --brick:#C24952;
  --brick-deep:#9E353E;
  --brick-tint:#FAF1F1;
  --ink:#2B2A2E;
  --ink-deep:#1C1B1F;
  --slate:#5C5A61;
  --line:#E1DFDB;
  --line-dark:rgba(255,255,255,.16);
  --bg:#F6F5F3;
  --white:#FFFFFF;

  --display:"Saira","Arial Narrow",sans-serif;
  --body:"Inter",system-ui,-apple-system,Segoe UI,sans-serif;

  --wrap:1240px;
  --gutter:clamp(20px,5vw,60px);
  --sect:clamp(64px,8.5vw,110px);
  --shadow:0 1px 2px rgba(28,27,31,.05),0 12px 32px rgba(28,27,31,.07);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:130px}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{
  margin:0;background:var(--white);color:var(--ink);
  font-family:var(--body);font-size:16.5px;line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;background:#EAE7E2}
a{color:inherit}
.wrap{max-width:var(--wrap);margin:0 auto;padding-inline:var(--gutter)}

h1,h2,h3,h4{font-family:var(--display);font-weight:700;line-height:1.14;letter-spacing:-.012em;margin:0;color:var(--ink)}
.h1{font-size:clamp(2.35rem,5vw,3.85rem);font-weight:800;line-height:1.08}
.h2{font-size:clamp(1.85rem,3.4vw,2.7rem);font-weight:700}
.h3{font-size:clamp(1.12rem,1.7vw,1.35rem);font-weight:700}
p{margin:0 0 1.1rem}
.lede{font-size:clamp(1rem,1.25vw,1.12rem);color:var(--slate);max-width:62ch}
.on-dark,.on-dark h1,.on-dark h2,.on-dark h3{color:#fff}
.on-dark .lede{color:rgba(255,255,255,.72)}

.eyebrow{
  display:inline-flex;align-items:center;gap:.6rem;
  font-size:.72rem;font-weight:600;letter-spacing:.17em;text-transform:uppercase;
  color:var(--brick);margin:0 0 1.1rem;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--brick)}
.eyebrow--light{color:#fff}

.btn{
  display:inline-flex;align-items:center;gap:.55em;
  font-size:.86rem;font-weight:600;letter-spacing:.02em;
  padding:.95em 1.6em;border:1.5px solid var(--brick);background:var(--brick);color:#fff;
  text-decoration:none;cursor:pointer;border-radius:2px;
  transition:background .2s ease,border-color .2s ease,color .2s ease;
}
.btn:hover{background:var(--brick-deep);border-color:var(--brick-deep)}
.btn--outline{background:transparent;color:var(--ink);border-color:var(--line)}
.btn--outline:hover{background:var(--ink);border-color:var(--ink);color:#fff}
.btn--light{background:transparent;color:#fff;border-color:rgba(255,255,255,.45)}
.btn--light:hover{background:#fff;color:var(--ink);border-color:#fff}
.btn .arw{transition:transform .2s ease}
.btn:hover .arw{transform:translateX(3px)}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:2px solid var(--brick);outline-offset:3px;
}

/* ---------------- header ---------------- */
.topbar{background:var(--ink-deep);color:rgba(255,255,255,.62);font-size:.79rem}
.topbar__in{display:flex;justify-content:space-between;align-items:center;gap:1.5rem;height:40px}
.topbar a{text-decoration:none}
.topbar a:hover{color:#fff}
.topbar__l,.topbar__r{display:flex;align-items:center;gap:1.6rem}
.topbar .dot{color:var(--brick)}

.hdr{position:sticky;top:0;z-index:70;background:#fff;border-bottom:1px solid var(--line)}
.hdr__in{display:flex;align-items:center;justify-content:space-between;gap:1.5rem;height:80px}
.hdr__logo img{height:40px;width:auto;background:none}
.nav{display:flex;align-items:center;gap:2rem}
.nav a{text-decoration:none;font-size:.9rem;font-weight:500;padding:.4rem 0;position:relative;color:var(--ink)}
.nav a::after{content:"";position:absolute;left:0;bottom:-2px;height:2px;width:0;background:var(--brick);transition:width .22s ease}
.nav a:hover::after,.nav a[aria-current="page"]::after{width:100%}
.hdr__cta{display:flex;align-items:center;gap:1rem}
.burger{display:none;background:none;border:1px solid var(--line);padding:.65em;cursor:pointer;border-radius:2px}
.burger span{display:block;width:20px;height:2px;background:var(--ink);margin:4px 0;transition:transform .25s ease,opacity .2s ease}
.burger[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.burger[aria-expanded="true"] span:nth-child(2){opacity:0}
.burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* ---------------- hero home ---------------- */
.hero{position:relative;background:var(--ink-deep);color:#fff;overflow:hidden}
.hero__bg{position:absolute;inset:0}
.hero__bg img{width:100%;height:100%;object-fit:cover;opacity:.42}
.hero__bg::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(28,27,31,.94) 0%,rgba(28,27,31,.80) 45%,rgba(28,27,31,.45) 100%);
}
.hero__in{position:relative;z-index:2;padding:clamp(72px,10vw,124px) 0 clamp(96px,11vw,140px);max-width:760px}
.hero h1{color:#fff;margin-bottom:1.3rem}
.hero h1 em{font-style:normal;color:var(--brick)}
.hero p{color:rgba(255,255,255,.78);font-size:clamp(1rem,1.3vw,1.14rem);max-width:56ch;margin-bottom:2.1rem}
.hero__actions{display:flex;flex-wrap:wrap;gap:.85rem}

/* ---------------- page header (pagine interne) ---------------- */
.phead{position:relative;background:var(--ink-deep);overflow:hidden}
.phead__bg{position:absolute;inset:0}
.phead__bg img{width:100%;height:100%;object-fit:cover;opacity:.34}
.phead__bg::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(28,27,31,.92),rgba(28,27,31,.6))}
.phead__in{position:relative;z-index:2;padding:clamp(52px,7vw,86px) 0}
.phead h1{color:#fff;font-size:clamp(2rem,4vw,3.1rem);margin-bottom:.9rem}
.phead p{color:rgba(255,255,255,.72);max-width:56ch;margin:0}
.crumb{font-size:.78rem;color:rgba(255,255,255,.5);margin:0 0 1.4rem}
.crumb a{text-decoration:none}
.crumb a:hover{color:#fff}
.crumb span{color:var(--brick);margin:0 .5rem}

/* ---------------- factbar ---------------- */
.factbar{position:relative;z-index:3;margin-top:calc(clamp(48px,6vw,70px) * -1)}
.factbar--flat{margin-top:0;padding-top:var(--sect)}
.factbar__in{background:#fff;box-shadow:var(--shadow);display:grid;grid-template-columns:repeat(4,1fr)}
.factbar__item{padding:clamp(1.5rem,2.6vw,2.1rem);border-right:1px solid var(--line)}
.factbar__item:last-child{border-right:0}
.factbar b{display:block;font-family:var(--display);font-size:clamp(1.7rem,3vw,2.3rem);font-weight:800;line-height:1;color:var(--brick)}
.factbar span{display:block;font-size:.79rem;font-weight:500;letter-spacing:.1em;text-transform:uppercase;color:var(--slate);margin-top:.6rem}

/* ---------------- sezioni ---------------- */
.sect{padding:var(--sect) 0}
.sect--tint{background:var(--bg)}
.sect--dark{background:var(--ink-deep);color:rgba(255,255,255,.72)}
.sect__head{max-width:66ch;margin-bottom:clamp(2.4rem,4.5vw,3.4rem)}
.sect__head .h2{margin-bottom:1rem}
.sect__head--center{margin-inline:auto;text-align:center}
.sect__head--center .eyebrow{justify-content:center}
.sect__head--center .lede{margin-inline:auto}

/* azienda */
.about{display:grid;grid-template-columns:1fr 1fr;gap:clamp(2.2rem,5vw,4.5rem);align-items:center}
.about__media{position:relative;padding-bottom:60px;padding-right:60px}
.about__media .big{width:100%;height:clamp(320px,38vw,460px);object-fit:cover}
.about__media .small{position:absolute;right:0;bottom:0;width:56%;height:220px;object-fit:cover;border:8px solid #fff;box-shadow:var(--shadow)}
.about__badge{position:absolute;left:0;top:0;background:var(--brick);color:#fff;padding:.85rem 1.15rem;font-family:var(--display);font-weight:700;font-size:.95rem;letter-spacing:.04em}
.checks{list-style:none;margin:1.6rem 0 2rem;padding:0;display:grid;gap:.75rem}
.checks li{display:flex;gap:.75rem;align-items:flex-start;font-size:.98rem}
.checks svg{flex:none;margin-top:.28rem}

/* servizi (card) */
.svc{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(1rem,2vw,1.6rem)}
.svc__card{background:#fff;border:1px solid var(--line);display:flex;flex-direction:column;transition:box-shadow .25s ease,transform .25s ease}
.svc__card:hover{box-shadow:var(--shadow);transform:translateY(-3px)}
.svc__img{position:relative;height:212px;overflow:hidden}
.svc__img img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.svc__card:hover .svc__img img{transform:scale(1.04)}
.svc__num{position:absolute;left:0;bottom:0;background:var(--brick);color:#fff;font-family:var(--display);font-weight:700;font-size:.82rem;letter-spacing:.1em;padding:.5rem .85rem}
.svc__body{padding:clamp(1.4rem,2.4vw,1.9rem);display:flex;flex-direction:column;flex:1}
.svc__body h3{margin-bottom:.7rem}
.svc__body p{color:var(--slate);font-size:.95rem}
.svc__body ul{list-style:none;margin:.4rem 0 1.5rem;padding:0}
.svc__body li{font-size:.88rem;color:var(--slate);padding:.28rem 0 .28rem 1.1rem;position:relative}
.svc__body li::before{content:"";position:absolute;left:0;top:.85rem;width:6px;height:6px;background:var(--brick)}
.svc__link{margin-top:auto;font-size:.86rem;font-weight:600;color:var(--brick);text-decoration:none;display:inline-flex;gap:.4rem}
.svc__link:hover{gap:.7rem}

/* servizio dettaglio (righe alternate) */
.srow{display:grid;grid-template-columns:1fr 1fr;gap:clamp(2rem,5vw,4.5rem);align-items:center;padding:clamp(2.6rem,5vw,4rem) 0;border-top:1px solid var(--line)}
.srow:first-of-type{border-top:0;padding-top:0}
.srow__media{position:relative}
.srow__media img{width:100%;height:clamp(280px,32vw,400px);object-fit:cover}
.srow__tag{position:absolute;left:0;top:0;background:var(--brick);color:#fff;font-family:var(--display);font-weight:700;font-size:.82rem;letter-spacing:.1em;padding:.55rem .9rem}
.srow--rev .srow__media{order:2}
.srow h2{margin-bottom:1rem}
.srow p{color:var(--slate)}
.specs{list-style:none;margin:1.4rem 0 0;padding:0;display:grid;grid-template-columns:1fr 1fr;gap:.6rem 1.4rem}
.specs li{font-size:.92rem;color:var(--slate);padding-left:1.1rem;position:relative}
.specs li::before{content:"";position:absolute;left:0;top:.65rem;width:6px;height:6px;background:var(--brick)}

/* stratigrafia */
.strat{display:grid;grid-template-columns:1fr 1fr;gap:clamp(2rem,4.5vw,4rem);align-items:center}
.strat__wall{display:flex;flex-direction:column;border:1px solid var(--line-dark);background:rgba(255,255,255,.03)}
.layer{
  display:flex;align-items:center;gap:1rem;width:100%;text-align:left;
  border:0;border-bottom:1px solid var(--line-dark);background:transparent;
  padding:0 1.15rem 0 0;cursor:pointer;font:inherit;color:rgba(255,255,255,.8);
  transition:background .2s ease,color .2s ease;
}
.layer:last-child{border-bottom:0}
.layer:hover{background:rgba(255,255,255,.06);color:#fff}
.layer[aria-selected="true"]{background:var(--brick);color:#fff}
.layer[aria-selected="true"] .layer__mm{color:rgba(255,255,255,.8)}
.layer__swatch{flex:none;width:44px;align-self:stretch}
.layer__name{flex:1;font-family:var(--display);font-weight:700;font-size:.94rem}
.layer__mm{font-size:.79rem;color:rgba(255,255,255,.45);white-space:nowrap}
.strat__panel{border-left:2px solid var(--brick);padding-left:1.6rem;min-height:200px}
.strat__panel .k{font-size:.72rem;font-weight:600;letter-spacing:.17em;text-transform:uppercase;color:var(--brick)}
.strat__panel h3{margin:.75rem 0 .85rem;color:#fff}
.strat__panel p{color:rgba(255,255,255,.72);margin:0}
.strat__panel .strat__hint{font-size:.79rem;color:rgba(255,255,255,.4);margin-top:1.4rem}

/* metodo */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line)}
.steps__item{background:#fff;padding:clamp(1.5rem,2.6vw,2rem)}
.steps__n{font-family:var(--display);font-weight:800;font-size:2.2rem;line-height:1;color:var(--line);display:block;margin-bottom:1rem}
.steps__item h3{font-size:1.06rem;margin-bottom:.6rem}
.steps__item p{color:var(--slate);font-size:.92rem;margin:0}

/* perché noi */
.why{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(1.2rem,2.6vw,2.2rem)}
.why__item{display:flex;gap:1rem}
.why__ico{flex:none;width:46px;height:46px;background:var(--brick-tint);color:var(--brick);display:grid;place-items:center;border-radius:2px}
.why__item h3{font-size:1.02rem;margin-bottom:.4rem}
.why__item p{font-size:.93rem;color:var(--slate);margin:0}

/* ---------------- progetti ---------------- */
.proj{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(1rem,2vw,1.6rem)}
.proj__card{background:#fff;border:1px solid var(--line);display:flex;flex-direction:column}
.proj__frame{position:relative;aspect-ratio:4/3;overflow:hidden;background:var(--bg)}
.proj__frame img{width:100%;height:100%;object-fit:cover}
.proj__frame.is-empty img{display:none}
/* segnaposto visibile finché la foto non viene caricata nella cartella */
.proj__ph{display:none;position:absolute;inset:0;flex-direction:column;align-items:center;justify-content:center;gap:.7rem;text-align:center;padding:1.2rem;
  background:
    linear-gradient(rgba(194,73,82,.04),rgba(194,73,82,.04)),
    repeating-linear-gradient(45deg,var(--bg) 0 10px,#EFEDEA 10px 20px);
  border-bottom:1px solid var(--line);
}
.proj__frame.is-empty .proj__ph{display:flex}
.proj__ph svg{color:var(--brick);opacity:.55}
.proj__ph code{
  font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:.72rem;color:var(--slate);
  background:#fff;border:1px solid var(--line);padding:.35rem .55rem;border-radius:2px;word-break:break-all;
}
.proj__ph small{font-size:.72rem;color:var(--slate);letter-spacing:.06em;text-transform:uppercase;font-weight:600}
.proj__body{padding:clamp(1.2rem,2.2vw,1.6rem)}
.proj__body h3{font-size:1.08rem;margin-bottom:.4rem}
.proj__body p{font-size:.92rem;color:var(--slate);margin:0 0 .8rem}
.proj__meta{display:flex;flex-wrap:wrap;gap:.4rem}
.tagpill{font-size:.72rem;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:var(--brick);background:var(--brick-tint);padding:.3rem .6rem;border-radius:2px}
.note{
  margin-top:clamp(2rem,4vw,3rem);border:1px solid var(--line);background:var(--bg);
  padding:clamp(1.4rem,3vw,2.1rem);display:flex;flex-wrap:wrap;gap:1.4rem;align-items:center;justify-content:space-between;
}
.note p{margin:.4rem 0 0;color:var(--slate);max-width:56ch;font-size:.95rem}

/* team */
.team{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(1rem,2vw,1.6rem)}
.team__card{background:#fff;border:1px solid var(--line);padding:clamp(1.4rem,2.6vw,1.9rem);display:flex;align-items:center;gap:1.1rem}
.team__mono{flex:none;width:62px;height:62px;display:grid;place-items:center;background:var(--ink-deep);color:#fff;font-family:var(--display);font-weight:800;font-size:1.5rem}
.team__card h3{font-size:1.12rem}

/* banda CTA */
.band{position:relative;overflow:hidden;background:var(--ink-deep)}
.band img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.3}
.band__in{position:relative;z-index:2;padding:clamp(3rem,6vw,5rem) 0;display:flex;flex-wrap:wrap;gap:2rem;align-items:center;justify-content:space-between}
.band h2{color:#fff;margin-bottom:.7rem;max-width:20ch}
.band p{color:rgba(255,255,255,.72);margin:0;max-width:46ch}

/* contatti */
.contact{display:grid;grid-template-columns:.9fr 1.1fr;gap:clamp(2rem,4.5vw,3.6rem)}
.info{list-style:none;margin:2rem 0 0;padding:0;display:grid;gap:1.15rem}
.info li{display:flex;gap:1rem;align-items:flex-start}
.info__ico{flex:none;width:42px;height:42px;background:var(--brick-tint);color:var(--brick);display:grid;place-items:center}
.info .k{display:block;font-size:.72rem;font-weight:600;letter-spacing:.15em;text-transform:uppercase;color:var(--slate)}
.info a,.info .v{text-decoration:none;font-weight:500;font-size:1rem}
.info a:hover{color:var(--brick)}
.form{background:#fff;border:1px solid var(--line);padding:clamp(1.5rem,3vw,2.3rem);box-shadow:var(--shadow)}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:1rem}
.field{display:block;margin-bottom:1rem}
.field span{display:block;font-size:.78rem;font-weight:600;color:var(--slate);margin-bottom:.45rem}
.field input,.field select,.field textarea{
  width:100%;padding:.8rem .9rem;border:1px solid var(--line);background:#fff;
  font:inherit;font-size:.95rem;color:var(--ink);border-radius:2px;
}
.field textarea{min-height:124px;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--brick);outline:none}
.form__note{font-size:.8rem;color:var(--slate);margin:.9rem 0 0;line-height:1.6}
.map{margin-top:clamp(2.4rem,4.5vw,3.4rem);border:1px solid var(--line)}
.map iframe{display:block;width:100%;height:360px;border:0;filter:grayscale(1)}

/* footer */
.ftr{background:var(--ink-deep);color:rgba(255,255,255,.6);padding:clamp(3rem,5.5vw,4.2rem) 0 1.6rem;font-size:.92rem}
.ftr__top{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:2.4rem;padding-bottom:2.4rem;border-bottom:1px solid var(--line-dark)}
.ftr__logo{height:38px;width:auto;filter:brightness(0) invert(1);margin-bottom:1.2rem;background:none}
.ftr p{margin:0;max-width:34ch}
.ftr h4{color:#fff;font-size:.78rem;font-weight:600;letter-spacing:.15em;text-transform:uppercase;margin:0 0 1.1rem}
.ftr ul{list-style:none;margin:0;padding:0;display:grid;gap:.6rem}
.ftr a{text-decoration:none}
.ftr a:hover{color:#fff}
.ftr__btm{display:flex;flex-wrap:wrap;gap:.8rem;justify-content:space-between;padding-top:1.5rem;font-size:.8rem}

/* reveal */
.rv{opacity:0;transform:translateY(18px);transition:opacity .6s ease,transform .6s ease}
.rv.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .rv{opacity:1;transform:none;transition:none}
  .btn,.layer,.svc__card{transition:none}
}

/* responsive */
@media (max-width:1080px){
  .factbar__in{grid-template-columns:1fr 1fr}
  .factbar__item:nth-child(2){border-right:0}
  .factbar__item:nth-child(1),.factbar__item:nth-child(2){border-bottom:1px solid var(--line)}
  .svc,.steps,.why,.proj,.team{grid-template-columns:1fr 1fr}
  .about,.strat,.contact,.srow{grid-template-columns:1fr}
  .srow--rev .srow__media{order:0}
  .ftr__top{grid-template-columns:1fr 1fr}
}
@media (max-width:760px){
  body{font-size:16px}
  .topbar .hide-s{display:none}
  .nav{
    position:fixed;inset:120px 0 auto;flex-direction:column;align-items:stretch;gap:0;
    background:#fff;border-bottom:1px solid var(--line);padding:.5rem var(--gutter) 1.4rem;
    transform:translateY(-160%);transition:transform .3s ease;z-index:60;
  }
  .nav.open{transform:none}
  .nav a{padding:.9rem 0;border-bottom:1px solid var(--line);font-size:1rem}
  .burger{display:block}
  .hdr__cta .btn{display:none}
  .factbar__in,.svc,.steps,.why,.proj,.team,.specs{grid-template-columns:1fr}
  .factbar__item{border-right:0;border-bottom:1px solid var(--line)}
  .about__media{padding-right:0;padding-bottom:0}
  .about__media .small{display:none}
  .grid2{grid-template-columns:1fr}
  .ftr__top{grid-template-columns:1fr}
}


/* ---------------- FAQ ---------------- */
.faq{max-width:900px;border-top:1px solid var(--line)}
.faq__item{border-bottom:1px solid var(--line);background:transparent}
.faq__item summary{
  list-style:none;cursor:pointer;padding:1.25rem 2.5rem 1.25rem 0;position:relative;
  font-family:var(--display);font-weight:700;font-size:1.05rem;color:var(--ink);
}
.faq__item summary::-webkit-details-marker{display:none}
.faq__item summary::after{
  content:"";position:absolute;right:.4rem;top:50%;width:11px;height:11px;
  border-right:2px solid var(--brick);border-bottom:2px solid var(--brick);
  transform:translateY(-70%) rotate(45deg);transition:transform .25s ease;
}
.faq__item[open] summary::after{transform:translateY(-20%) rotate(-135deg)}
.faq__item summary:hover{color:var(--brick)}
.faq__a{padding:0 2.5rem 1.4rem 0}
.faq__a p{margin:0;color:var(--slate);font-size:.97rem}
@media (prefers-reduced-motion:reduce){.faq__item summary::after{transition:none}}