/* Colasanto Demolizioni - foglio di stile del sito */
:root{
  --ink:#101317;
  --ink-2:#171b21;
  --ink-3:#22272f;
  --line:rgba(255,255,255,.10);
  --paper:#f5f6f7;
  --brand:#f26522;        /* accento su fondo scuro / elementi grandi */
  --brand-solid:#c94d13;  /* superfici piene con testo bianco - 4.61:1 */
  --brand-solid-d:#a83a0a;/* hover superfici piene - 6.41:1 */
  --brand-text:#b03d0c;   /* testo piccolo su fondo chiaro - 5.97:1 */
  --hd:'Barlow Condensed',system-ui,sans-serif;
  --bd:'Inter',system-ui,-apple-system,sans-serif;
  /* scala z-index: 10 contenuto sovrapposto, 20 sticky, 30 overlay, 50 fixed */
  --z-raise:10; --z-sticky:20; --z-overlay:30; --z-fixed:50;
}
*{scroll-behavior:smooth}
body{font-family:var(--bd);color:#1b1f24;background:#fff;line-height:1.7;overflow-x:hidden}
h1,h2,h3,h4,h5,.hd{font-family:var(--hd);text-transform:uppercase;letter-spacing:.01em;font-weight:700;line-height:1.05}
h1{font-size:clamp(2.6rem,6.5vw,5.2rem)}
h2{font-size:clamp(2rem,3.6vw,3.1rem)}
h3{font-size:clamp(1.3rem,2vw,1.6rem)}
a{text-decoration:none}
.sec{padding:clamp(64px,9vw,130px) 0}
.dark{background:var(--ink);color:#dfe3e8}
.dark h1,.dark h2,.dark h3{color:#fff}
.grey{background:var(--paper)}

.eyebrow{font-family:var(--hd);text-transform:uppercase;letter-spacing:.22em;font-size:.85rem;font-weight:600;color:var(--brand-text);display:flex;align-items:center;gap:.7rem;margin-bottom:1rem}
.eyebrow::before{content:"";width:34px;height:2px;background:var(--brand-text);display:block}
.dark .eyebrow,.hero .eyebrow{color:var(--brand)}
.dark .eyebrow::before,.hero .eyebrow::before{background:var(--brand)}

.btn{border-radius:2px;font-family:var(--hd);text-transform:uppercase;letter-spacing:.1em;font-weight:600;padding:.85rem 1.9rem;font-size:1.02rem;border:0;cursor:pointer;
  min-height:48px;display:inline-flex;align-items:center;justify-content:center;gap:.5rem;transition:background-color .22s ease-out,color .22s ease-out,transform .22s ease-out}
.btn-brand{background:var(--brand-solid);color:#fff}
.btn-brand:hover{background:var(--brand-solid-d);color:#fff;transform:translateY(-2px)}
.btn-ghost{border:1px solid rgba(255,255,255,.35);color:#fff;background:transparent}
.btn-ghost:hover{background:#fff;color:var(--ink)}
.btn-outline-ink{border:1px solid #cfd4da;color:#1b1f24;background:transparent}
.btn-outline-ink:hover{background:var(--ink);color:#fff;border-color:var(--ink)}

.nav-top{background:var(--ink-2);font-size:.85rem;color:#9aa3ad;border-bottom:1px solid var(--line)}
.nav-top a{color:#cfd4da}
.nav-top a:hover{color:var(--brand)}
.navbar{background:transparent;padding:1.1rem 0;transition:.3s}
.navbar.scrolled{background:rgba(16,19,23,.96);backdrop-filter:blur(8px);padding:.55rem 0;box-shadow:0 8px 30px rgba(0,0,0,.35)}
.navbar-brand img{height:46px;width:auto}
.navbar .nav-link{font-family:var(--hd);text-transform:uppercase;letter-spacing:.09em;font-weight:600;color:#e7eaee!important;font-size:1.05rem;padding:.5rem 1rem!important;position:relative}
.navbar .nav-link::after{content:"";position:absolute;left:1rem;right:1rem;bottom:.15rem;height:2px;background:var(--brand);transform:scaleX(0);transform-origin:left;transition:.25s}
.navbar .nav-link:hover::after,.navbar .nav-link.active::after{transform:scaleX(1)}
.navbar .btn.nav-cta::after{display:none}
.navbar-toggler{border-color:var(--line)}
.navbar-toggler-icon{filter:invert(1) grayscale(1) brightness(2)}

.hero{position:relative;min-height:100vh;display:flex;align-items:center;background:#000 url('/images/index-01.jpg') center/cover no-repeat;margin-top:-96px;padding-top:96px}
.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(10,12,15,.94) 0%,rgba(10,12,15,.72) 45%,rgba(10,12,15,.25) 100%)}
.hero>.container{position:relative;z-index:var(--z-raise)}
.hero h1{color:#fff;text-shadow:0 6px 30px rgba(0,0,0,.4)}
.hero h1 span{color:var(--brand)}
.hero .lead{color:#d5dae0;max-width:37rem;font-size:1.15rem}
.scroll-hint{position:absolute;bottom:28px;left:50%;transform:translateX(-50%);z-index:2;color:#fff;opacity:.6;font-size:1.6rem;animation:bob 1.8s infinite}
@keyframes bob{0%,100%{transform:translate(-50%,0)}50%{transform:translate(-50%,10px)}}

.strip{background:var(--brand-solid);color:#fff}
.strip a{color:#fff}
.strip .it{display:flex;align-items:center;gap:1rem;padding:1.6rem 0;justify-content:center}
.strip .bi{font-size:1.9rem;opacity:.85}
.strip small{display:block;text-transform:uppercase;letter-spacing:.14em;font-size:.72rem}
.strip b{font-family:var(--hd);font-size:1.25rem;letter-spacing:.02em}

.svc{position:relative;overflow:hidden;height:340px;display:flex;align-items:flex-end;border-radius:3px;color:#fff;text-decoration:none;cursor:pointer}
.svc:focus-visible{outline-offset:-4px}
.svc img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:.7s ease;filter:grayscale(.35)}
.svc::after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(10,12,15,.92) 8%,rgba(10,12,15,.15) 75%)}
.svc:hover img{transform:scale(1.08);filter:grayscale(0)}
.svc .body{position:relative;z-index:2;padding:1.7rem}
.svc h3{color:#fff;margin-bottom:.35rem}
.svc p{font-size:.93rem;color:#c8cdd4;margin:0;max-height:0;opacity:0;overflow:hidden;transition:.4s}
.svc:hover p{max-height:140px;opacity:1;margin-top:.5rem}
.svc .num{position:absolute;top:1.1rem;right:1.4rem;z-index:2;font-family:var(--hd);font-size:2.6rem;color:rgba(255,255,255,.22)}

.stat b{font-family:var(--hd);font-size:clamp(2.4rem,5vw,3.6rem);color:var(--brand-text);display:block;line-height:1}
.stat span{text-transform:uppercase;letter-spacing:.14em;font-size:.75rem;color:#475569}

.framed{position:relative;z-index:1}
.framed img{width:100%;object-fit:cover;border-radius:2px}
.framed::before{content:"";position:absolute;top:-16px;right:-16px;width:60%;height:60%;border:3px solid var(--brand);border-left:0;border-bottom:0;z-index:-1}
@media(max-width:991px){
  /* g-5 ha margini di -1.5rem, piu' larghi del padding del container (.75rem):
     sotto i 992px la riga sborda di 12px per lato e la pagina scorre in orizzontale */
  .row.g-5{--bs-gutter-x:1.5rem}
  /* il fregio deve restare dentro il margine laterale del container (12px) */
  .framed::before{top:-10px;right:-10px}
}
/* servizi: ogni servizio e' una .row figlia diretta di un'altra .row, senza colonna in mezzo;
   eredita il padding delle colonne piu' il proprio margine negativo e slitta a sinistra */
.row>.row{margin-left:0;margin-right:0;padding-left:0;padding-right:0}

.filters .btn{padding:.5rem 1.25rem;font-size:.92rem;margin:.2rem}
.filters .btn.active{background:var(--ink);color:#fff;border-color:var(--ink)}
.work{position:relative;overflow:hidden;border-radius:2px;display:block;aspect-ratio:4/3.6;background:#111}
.work img{width:100%;height:100%;object-fit:cover;transition:.6s}
.work:hover img{transform:scale(1.07)}
.work .cap{position:absolute;inset:auto 0 0 0;padding:1.4rem 1.2rem .9rem;background:linear-gradient(0deg,rgba(10,12,15,.94),transparent);color:#fff}
.work .cap span{display:block;font-family:var(--hd);text-transform:uppercase;font-size:1.15rem;line-height:1.2}
.work .cap small{color:var(--brand);text-transform:uppercase;letter-spacing:.14em;font-size:.7rem}

.news-card{background:#fff;border:1px solid #e7e9ec;height:100%;transition:.3s}
.news-card:hover{transform:translateY(-6px);box-shadow:0 22px 45px rgba(16,19,23,.13)}
.news-card img{aspect-ratio:16/10;object-fit:cover;width:100%}
.news-card .p{padding:1.4rem}
.news-card time{color:var(--brand-text);text-transform:uppercase;letter-spacing:.14em;font-size:.72rem;font-weight:600}

.zona{display:inline-block;border:1px solid var(--line);padding:.45rem 1.1rem;margin:.25rem;font-family:var(--hd);text-transform:uppercase;letter-spacing:.06em;color:#cfd4da;font-size:1rem;transition:.25s}
.zona:hover{border-color:var(--brand);color:#fff;background:rgba(242,101,34,.12)}

.cert{background:#fff;border:1px solid #e7e9ec;padding:clamp(.6rem,2.5vw,1.5rem);height:100%;display:flex;align-items:center;justify-content:center}
/* max-width tiene dentro al riquadro i loghi larghi (IT23-0431 e' 2:1);
   con width e height auto il rapporto dell'immagine resta quello originale */
.cert img{display:block;width:auto;height:auto;min-width:0;max-width:100%;max-height:130px;object-fit:contain;filter:grayscale(1);opacity:.72;transition:.3s}
.cert:hover img{filter:none;opacity:1}

.form-control,.form-select{border-radius:2px;border:1px solid #d8dce1;padding:.85rem 1rem;font-size:.95rem}
.form-control:focus,.form-select:focus{border-color:var(--brand);box-shadow:0 0 0 .18rem rgba(242,101,34,.18)}
.form-label{font-family:var(--hd);text-transform:uppercase;letter-spacing:.08em;font-size:.9rem;color:inherit}
.form-check-input{width:1.3rem;height:1.3rem;margin-top:.28rem;cursor:pointer}
.form-check-input:checked{background-color:var(--brand-solid);border-color:var(--brand-solid)}
.form-check-label{cursor:pointer}
.form-check-label a{color:var(--brand-text);text-decoration:underline}

footer{background:#0a0c0f;color:#98a1ab;font-size:.92rem}
footer a{color:#cfd4da}
footer a:hover{color:var(--brand)}
footer h5{color:#fff;font-size:1.15rem;margin-bottom:1.1rem}
.f-line{border-top:1px solid var(--line)}

.rv{opacity:0;transform:translateY(28px);transition:.75s cubic-bezier(.22,1,.36,1)}
.rv.in{opacity:1;transform:none}

.totop{position:fixed;right:20px;bottom:20px;z-index:var(--z-fixed);width:46px;height:46px;display:none;align-items:center;justify-content:center;background:var(--brand-solid);color:#fff;border-radius:2px}

/* --- accessibilità: focus visibile su tutti gli elementi interattivi --- */
:where(a,button,input,select,textarea,[tabindex]):focus-visible{
  outline:3px solid var(--brand);outline-offset:3px;border-radius:2px}
.dark :where(a,button):focus-visible,.hero :where(a,button):focus-visible,
.strip :where(a,button):focus-visible,footer :where(a,button):focus-visible{outline-color:#fff}

/* skip link per navigazione da tastiera */
.skip{position:absolute;left:-9999px;top:0;z-index:calc(var(--z-fixed) + 10);background:var(--brand-solid);color:#fff;
  padding:.9rem 1.4rem;font-family:var(--hd);text-transform:uppercase;letter-spacing:.1em}
.skip:focus{left:8px;top:8px;color:#fff}

/* touch target minimo 44px + spaziatura */
.navbar .nav-link{min-height:44px;display:flex;align-items:center}
.navbar-toggler{min-height:44px;min-width:44px}
.zona{min-height:44px;display:inline-flex;align-items:center}
.filters .btn{min-height:44px}
.scroll-hint{width:44px;height:44px;display:flex;align-items:center;justify-content:center}
/* link testuali: area toccabile piena senza alterare il layout */
#contatti ul a,footer ul a,footer p a,.news-card .hd,.form-check-label a{
  display:inline-flex;align-items:center;min-height:44px}
@media(min-width:992px){
  #contatti ul a,footer ul a,footer p a,.news-card .hd{min-height:0}
}

/* niente hover su touch: le descrizioni servizi restano visibili */
@media (hover:none){
  .svc p{max-height:none;opacity:1;margin-top:.5rem}
  .svc::after{background:linear-gradient(0deg,rgba(10,12,15,.94) 25%,rgba(10,12,15,.2) 85%)}
}

/* rispetto delle preferenze di movimento */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;
    transition-duration:.001ms!important;scroll-behavior:auto!important}
  .rv{opacity:1;transform:none}
  .scroll-hint{animation:none}
}

@media(max-width:991px){
  .hero{min-height:88vh}
  /* su mobile la sfumatura è verticale: il testo resta leggibile sopra la foto */
  .hero::after{background:linear-gradient(180deg,rgba(10,12,15,.88) 0%,rgba(10,12,15,.78) 55%,rgba(10,12,15,.9) 100%)}
  .navbar-collapse{background:rgba(16,19,23,.98);padding:1rem;margin-top:.8rem}
  .navbar-collapse .nav-link{width:100%}
  .f-line a,.f-line span{padding:.6rem 0}
  .strip .it{justify-content:flex-start}
  .strip b{font-size:1.05rem;word-break:break-word}
  .navbar .nav-cta{width:100%;margin-top:.6rem}
}
@media(max-width:575px){
  .work .cap span{font-size:.95rem}
  .filters .btn{width:calc(50% - .4rem)}
}


/* ---------------------------------------------------- pagine interne --- */
/* intestazione compatta per le pagine diverse dalla home */
.page-hero{position:relative;min-height:52vh;display:flex;align-items:flex-end;
  background:#000 center/cover no-repeat;margin-top:-96px;padding:180px 0 60px}
.page-hero::after{content:"";position:absolute;inset:0;
  background:linear-gradient(0deg,rgba(10,12,15,.95) 5%,rgba(10,12,15,.55) 100%)}
.page-hero>.container{position:relative;z-index:var(--z-raise)}
.page-hero h1{color:#fff;font-size:clamp(2.2rem,5vw,4rem)}
.page-hero .briciole{color:#aeb6bf;font-size:.9rem}
.page-hero .briciole a{color:#cfd4da}
.page-hero .briciole a:hover{color:var(--brand)}

/* titolo di categoria nell'elenco lavori */
.title-cat{font-family:var(--hd);text-transform:uppercase;letter-spacing:.02em;
  font-size:1.6rem;margin:0 0 1.2rem;padding-bottom:.7rem;border-bottom:2px solid #e7e9ec}
.title-cat span{color:var(--brand-text)}

/* galleria del dettaglio lavoro */
.galleria a{display:block;position:relative;overflow:hidden;aspect-ratio:4/3;background:#111}
.galleria img{width:100%;height:100%;object-fit:cover;transition:.5s}
.galleria a:hover img{transform:scale(1.06)}

/* scheda dati del lavoro */
.scheda{background:var(--paper);padding:1.6rem;border-left:3px solid var(--brand)}
.scheda dt{font-family:var(--hd);text-transform:uppercase;letter-spacing:.08em;
  font-size:.85rem;color:var(--brand-text)}
.scheda dd{margin-bottom:1rem}

/* testo lungo delle schede e delle notizie */
.testo-lungo{max-width:68ch}
.testo-lungo p{margin-bottom:1.1rem}
.testo-lungo img{max-width:100%;height:auto;margin:1rem 0}

/* video */
.video-wrap{position:relative;aspect-ratio:16/9;background:#000}
.video-wrap iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
.apri-video{position:absolute;inset:0;width:100%;height:100%;padding:0;border:0;background:none;cursor:pointer}
.apri-video img{width:100%;height:100%;object-fit:cover;transition:.4s ease-out}
.apri-video:hover img{transform:scale(1.05);filter:brightness(.85)}
.apri-video .play{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;
  color:#fff;font-size:3.4rem;text-shadow:0 4px 20px rgba(0,0,0,.5)}
.apri-video:hover .play{color:var(--brand)}

/* impaginazione */
.pagine .page-link{border-radius:2px;color:var(--brand-text);border-color:#dfe3e7;
  min-width:44px;min-height:44px;display:flex;align-items:center;justify-content:center}
.pagine .active .page-link{background:var(--ink);border-color:var(--ink);color:#fff}

@media(max-width:991px){
  .page-hero{min-height:40vh;padding:150px 0 45px}
}

/* ------------------------------------------------------- lightbox ------ */
.lightbox{position:fixed;inset:0;z-index:calc(var(--z-fixed) + 20);display:none;
  align-items:center;justify-content:center;background:rgba(8,10,13,.95)}
.lightbox.aperto{display:flex}
.lightbox figure{margin:0;max-width:92vw;max-height:92vh;display:flex;
  flex-direction:column;align-items:center;gap:.8rem}
.lightbox img{max-width:92vw;max-height:78vh;object-fit:contain;
  border-radius:2px;box-shadow:0 20px 60px rgba(0,0,0,.5)}
.lightbox figcaption{color:#cfd4da;font-size:.92rem;text-align:center;max-width:60ch}
.lightbox .conta{color:#8b939d;font-family:var(--hd);letter-spacing:.14em;font-size:.8rem}
.lightbox button{position:absolute;background:rgba(255,255,255,.08);color:#fff;border:0;
  width:52px;height:52px;border-radius:50%;font-size:1.5rem;cursor:pointer;
  display:flex;align-items:center;justify-content:center;
  transition:background-color .2s ease-out}
.lightbox button:hover{background:var(--brand-solid)}
.lightbox .chiudi{top:20px;right:20px}
.lightbox .prec{left:20px;top:50%;transform:translateY(-50%)}
.lightbox .succ{right:20px;top:50%;transform:translateY(-50%)}
.lightbox .caricamento{position:absolute;color:#fff;font-size:2rem;opacity:.6}
body.lightbox-aperto{overflow:hidden}
/* video nella lightbox (pagina video): riquadro 16:9 che sta nello schermo in larghezza e in altezza */
.lightbox-video .video-box{width:min(92vw,calc(78vh * 16 / 9));aspect-ratio:16/9;background:#000;
  border-radius:2px;box-shadow:0 20px 60px rgba(0,0,0,.5)}
.lightbox-video .video-box iframe{display:block;width:100%;height:100%;border:0}
@media(max-width:575px){
  .lightbox button{width:44px;height:44px;font-size:1.2rem}
  .lightbox .prec{left:8px}
  .lightbox .succ{right:8px}
  .lightbox img{max-height:66vh}
}