/* ============================================================
   SPATIUM — sito completo (prototipo dalla bozza)
   Palette: calce / carbone / ruggine — Montserrat + IBM Plex Mono
   ============================================================ */
:root{
  --calce:#F2EDE4; --card:#F8F4EB; --gesso:#EAE3D6; --sabbia:#D8CEBE;
  --linea:#DCD3C3; --linea-scura:#4A4036;
  --carbone:#32291F; --notte:#2A221A;
  --testo:#2E2721; --fango:#7A6E60; --taupe:#9C8F81; --chiaro:#F5F1E8; --chiaro2:#C9BFB0;
  --ruggine:#B0522D; --ruggine-v:#B45A33; --ruggine-s:#95431F;
  --max:1200px; --gut:clamp(24px,6vw,56px);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--calce);color:var(--testo);
     font-family:'Montserrat',system-ui,sans-serif;font-size:16.5px;line-height:1.65;
     -webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:var(--ruggine)}
.wrap{max-width:var(--max);margin:0 auto;padding-left:var(--gut);padding-right:var(--gut)}
.mono{font-family:'IBM Plex Mono',ui-monospace,monospace;text-transform:uppercase;
      letter-spacing:.14em;font-size:11.5px;line-height:1.6}

/* ---------- header ---------- */
.top{position:sticky;top:0;z-index:50;background:color-mix(in srgb, var(--calce) 92%, transparent);
     backdrop-filter:blur(8px);border-bottom:1px solid var(--linea)}
.top .wrap{display:flex;align-items:center;gap:28px;min-height:74px}
.logo{color:var(--testo);display:inline-flex;align-items:center;text-decoration:none}
.logo svg{height:26px;width:auto;display:block}
.nav{display:flex;gap:26px;margin-left:auto;align-items:center}
.nav a{color:var(--testo);text-decoration:none;font-size:15.5px;padding:6px 0;
       border-bottom:2px solid transparent}
.nav a:hover{color:var(--ruggine)}
.nav a[aria-current="page"]{border-bottom-color:var(--ruggine)}
.top .cta{margin-left:6px}
.burger{display:none;margin-left:auto;background:none;border:1px solid var(--linea);border-radius:10px;
        padding:10px 12px;cursor:pointer;color:var(--testo)}
@media (max-width:960px){
  .nav{display:none;position:absolute;top:74px;left:0;right:0;background:var(--calce);
       flex-direction:column;gap:0;padding:10px 0 16px;border-bottom:1px solid var(--linea)}
  .nav.open{display:flex}
  .nav a{padding:12px var(--gut);width:100%}
  .burger{display:block}
  .top .cta{display:none}
}

/* ---------- bottoni ---------- */
.btn{display:inline-block;text-decoration:none;font-family:'IBM Plex Mono',monospace;
     font-size:11.5px;letter-spacing:.12em;text-transform:uppercase;
     padding:15px 26px;border-radius:999px;cursor:pointer;border:0}
.btn--pieno{background:var(--ruggine-v);color:#fff}
.btn--pieno:hover{background:var(--ruggine-s)}
.btn--linea{background:transparent;color:var(--testo);border:1px solid var(--sabbia)}
.btn--linea:hover{border-color:var(--testo)}
.btn--scuro{background:var(--carbone);color:var(--chiaro)}
.btn--scuro:hover{background:var(--notte)}
.btn--chiaro{background:transparent;color:var(--chiaro);border:1px solid var(--linea-scura)}
.btn--chiaro:hover{border-color:var(--chiaro)}

/* ---------- blocchi ---------- */
.sez{padding:clamp(56px,9vw,110px) 0}
.sez--scura{background:var(--carbone);color:var(--chiaro)}
.sez--scura .eyebrow{color:var(--ruggine-v)}
.kick{display:block;width:34px;height:3px;background:var(--ruggine);border-radius:2px;margin:0 0 14px}
.eyebrow{color:var(--ruggine);margin:0 0 18px}
h1,h2{font-weight:300;letter-spacing:-.02em;margin:0 0 18px}
h1{font-size:clamp(34px,5.6vw,62px);line-height:1.08}
h2{font-size:clamp(28px,4vw,44px);line-height:1.15}
h3{font-weight:400;font-size:22px;margin:0 0 8px}
.sotto{font-size:clamp(17px,1.6vw,19.5px);color:var(--fango);max-width:56ch;margin:0}
.sez--scura .sotto{color:var(--chiaro2)}

/* hero home */
.hero{position:relative;min-height:min(88vh,860px);display:flex;align-items:flex-end;color:var(--chiaro)}
.hero__bg{position:absolute;inset:0;background-size:cover;background-position:center;
          filter:brightness(.62) saturate(.9)}
.hero__in{position:relative;padding:120px 0 90px;max-width:640px}
.hero h1{color:#fff}
.hero .sotto{color:#E8E1D4}
.hero .mono{color:#E3D9C8}
.hero .azioni{margin-top:34px;display:flex;gap:14px;flex-wrap:wrap}
.hero .btn--linea{color:#fff;border-color:rgba(255,255,255,.55)}

/* pilastri 4 colonne */
.pilastri{display:grid;grid-template-columns:repeat(4,1fr);gap:44px}
.pilastri h3{font-size:20px}
.pilastri p{margin:10px 0 0;color:var(--fango);font-size:15px}
@media (max-width:960px){.pilastri{grid-template-columns:repeat(2,1fr)}}
@media (max-width:560px){.pilastri{grid-template-columns:1fr}}

/* card collezioni */
.griglia3{display:grid;grid-template-columns:repeat(3,1fr);gap:34px}
@media (max-width:960px){.griglia3{grid-template-columns:1fr}}
.coll img{aspect-ratio:1/1.02;object-fit:cover;width:100%}
.coll h3{font-size:26px;font-weight:300;margin:18px 0 4px}
.coll .tag{color:var(--ruggine)}
.coll p{margin:10px 0 12px;color:var(--fango);font-size:15.5px}
.coll .sist{color:var(--taupe)}

/* banda citazione / vitralis */
.banda{position:relative;border-radius:14px;overflow:hidden;margin-top:44px}
.banda img{width:100%;height:280px;object-fit:cover;filter:brightness(.55)}
.banda .testo{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;
              justify-content:center;text-align:center;padding:20px;color:#F3EDE1}
.banda .cit{font-family:Georgia,'Times New Roman',serif;font-style:italic;
            font-size:clamp(19px,2.6vw,27px);line-height:1.45;max-width:34ch;margin:0}

/* liste con filetti */
.filetti{border-top:1px solid var(--linea);margin-top:34px}
.filetti .voce{border-bottom:1px solid var(--linea);padding:24px 0}
.filetti h3{font-weight:400;font-size:21px;margin:0 0 6px}
.filetti p{margin:0;color:var(--fango)}
.sez--scura .filetti{border-color:var(--linea-scura)}
.sez--scura .filetti .voce{border-color:var(--linea-scura)}
.sez--scura .filetti p{color:var(--chiaro2)}

/* due colonne testo */
.due{display:grid;grid-template-columns:1fr 1.15fr;gap:clamp(30px,5vw,70px);align-items:start}
@media (max-width:900px){.due{grid-template-columns:1fr}}
.due .colonna p{color:var(--fango)}
.due .colonna p.primo{color:var(--testo);font-size:18.5px}

/* scheda collezione (pagina collezioni) */
.scheda{display:grid;grid-template-columns:1.05fr 1fr;gap:clamp(30px,5vw,64px);align-items:center;
        padding:clamp(44px,7vw,80px) var(--gut);border-top:1px solid var(--linea)}
.scheda:first-of-type{border-top:0}
.scheda img{width:100%;aspect-ratio:1/1.02;object-fit:cover}
.scheda .sistemi{border-top:1px solid var(--linea);margin-top:28px}
.scheda .sistemi .riga{display:grid;grid-template-columns:150px 1fr;gap:18px;
        padding:16px 0;border-bottom:1px solid var(--linea)}
.scheda .sistemi .riga b{font-weight:400;font-size:20px}
.scheda .sistemi .riga span{color:var(--fango);font-size:15px}
.scheda .cap{color:var(--taupe);margin-top:12px}
@media (max-width:900px){
  .scheda{grid-template-columns:1fr}
  /* su una colonna il testo viene sempre prima della foto (Duris ha la foto prima nel codice) */
  #duris > div:first-child{order:2}
}
/* niente linee tra le tre collezioni: resta solo quella sotto l'intro */
#duris,#sidur{border-top:0}

/* figure con didascalie */
.figura img{width:100%;max-height:560px;object-fit:cover}
/* sistema colore interattivo (home): velo che tinge la foto */
.tinta{position:relative;overflow:hidden}
.tinta .velo{position:absolute;inset:0;pointer-events:none;background:#B4ADA2;
             mix-blend-mode:color;transition:background .6s ease}
.tinta .velo--fondo{mix-blend-mode:soft-light;opacity:.5}
.swatch{width:52px;height:52px;border-radius:50%;border:0;padding:0;cursor:pointer;
        transition:transform .25s ease}
.swatch:hover{transform:scale(1.12)}
.swatch.attiva{outline:2px solid var(--testo);outline-offset:3px}
.figura .didasc{display:flex;justify-content:space-between;gap:16px;margin-top:12px;flex-wrap:wrap}
.figura .didasc span:last-child{color:var(--taupe)}

/* swatches colori */
.famiglie{display:grid;grid-template-columns:repeat(5,1fr);gap:34px 26px;margin-top:40px}
@media (max-width:1100px){.famiglie{grid-template-columns:repeat(3,1fr)}}
@media (max-width:640px){.famiglie{grid-template-columns:repeat(2,1fr)}}
.fam .strip{display:flex;gap:3px;height:86px}
.fam .strip i{flex:1;border-radius:2px}
.fam h3{font-weight:400;font-size:19px;margin:12px 0 2px}
.fam .num{color:var(--taupe)}

/* card superfici / ambiti */
.ambiti{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;margin-top:40px}
@media (max-width:960px){.ambiti{grid-template-columns:1fr}}
.ambito{background:var(--card);border:1px solid var(--linea);border-radius:12px;padding:26px}
.ambito h3{font-weight:400;font-size:21px}
.ambito p{color:var(--fango);font-size:15px;margin:8px 0 16px}
.pill{display:inline-block;border:1px solid var(--sabbia);border-radius:999px;
      padding:7px 13px;margin:0 6px 8px 0;color:var(--fango);
      font-family:'IBM Plex Mono',monospace;font-size:10.5px;letter-spacing:.1em;text-transform:uppercase}

/* numerate scure */
.numerate{display:grid;grid-template-columns:repeat(4,1fr);gap:40px;margin-top:44px}
.numerate.tre{grid-template-columns:repeat(3,1fr)}
/* voce che occupa le due righe della colonna destra, centrata in verticale */
.numerate .centro{grid-row:span 2;align-self:center}
@media (max-width:960px){.numerate .centro{grid-row:auto;align-self:start}}
@media (max-width:960px){.numerate,.numerate.tre{grid-template-columns:repeat(2,1fr)}}
@media (max-width:560px){.numerate,.numerate.tre{grid-template-columns:1fr}}
.numerate .mono{color:var(--taupe)}
.numerate h3{font-size:20px;margin:8px 0}
.numerate p{color:var(--chiaro2);font-size:15px;margin:0}

/* cta band su foto */
.ctaband{position:relative;color:#fff;text-align:center}
.ctaband .bg{position:absolute;inset:0;background-size:cover;background-position:center;
             filter:brightness(.5)}
.ctaband .in{position:relative;padding:clamp(70px,10vw,120px) var(--gut)}
.ctaband h2{color:#fff;max-width:22ch;margin:0 auto 26px}

/* form contatti */
.form-griglia{display:grid;grid-template-columns:repeat(2,1fr);gap:26px 30px}
@media (max-width:640px){.form-griglia{grid-template-columns:1fr}}
.campo label{display:block;color:var(--fango);margin-bottom:10px}
.campo input,.campo select,.campo textarea{width:100%;background:transparent;border:0;
   border-bottom:1px solid var(--sabbia);padding:10px 2px;font:inherit;color:var(--testo)}
.campo input:focus,.campo select:focus,.campo textarea:focus{outline:none;border-bottom-color:var(--ruggine)}
.campo--full{grid-column:1/-1}
.consenso{display:flex;gap:12px;align-items:flex-start;margin:26px 0;color:var(--fango);font-size:15px}
.lato h4{font-family:'IBM Plex Mono',monospace;font-size:11.5px;letter-spacing:.14em;
        text-transform:uppercase;color:var(--ruggine);margin:0 0 12px}
.lato .blocco{border-bottom:1px solid var(--linea);padding:22px 0}
.lato .blocco:first-child{padding-top:0}
.lato p{margin:0;color:var(--fango);font-size:15.5px}
.lato a{color:var(--ruggine)}

/* footer */
.ftr{background:var(--notte);color:var(--chiaro2);padding:56px 0 30px;margin-top:0}
.ftr .colonne{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px}
@media (max-width:820px){.ftr .colonne{grid-template-columns:1fr}}
.ftr .logo{color:var(--chiaro)}
.ftr .claim{margin-top:16px;color:var(--taupe)}
.ftr h5{font-family:'IBM Plex Mono',monospace;font-size:11px;letter-spacing:.14em;
        text-transform:uppercase;color:var(--ruggine-v);margin:0 0 14px}
.ftr a{color:var(--chiaro2);text-decoration:none;display:block;padding:5px 0;font-size:15px}
.ftr a:hover{color:#fff}
.ftr .base{border-top:1px solid var(--linea-scura);margin-top:44px;padding-top:22px;
           display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;color:var(--taupe)}

/* logo come immagine */
.logo img{height:26px;width:auto;display:block}
.ftr .logo img{height:30px;filter:invert(1) brightness(.95)}

/* ============================================================
   ANIMAZIONI E MOVIMENTI
   ============================================================ */

/* comparsa allo scroll (gli elementi ricevono .reveal dal JS) */
.reveal{opacity:0;transform:translateY(28px);
        transition:opacity .8s ease,transform .9s cubic-bezier(.22,.61,.36,1)}
.reveal.in{opacity:1;transform:none}

/* hero: zoom lento del fondo + ingresso del testo a scalare */
@keyframes heroZoom{from{transform:scale(1.07)}to{transform:scale(1)}}
.hero__bg{animation:heroZoom 8s cubic-bezier(.22,.61,.36,1) both}
@keyframes fadeUp{from{opacity:0;transform:translateY(26px)}to{opacity:1;transform:none}}
.hero__in>*{animation:fadeUp .9s cubic-bezier(.22,.61,.36,1) both}
.hero__in>*:nth-child(1){animation-delay:.25s}
.hero__in>*:nth-child(2){animation-delay:.4s}
.hero__in>*:nth-child(3){animation-delay:.55s}
.hero__in>*:nth-child(4){animation-delay:.7s}

/* menu: sottolineatura che cresce */
.nav a{position:relative;border-bottom:0 !important}
.nav a::after{content:"";position:absolute;left:0;bottom:-2px;height:2px;width:0;
              background:var(--ruggine);transition:width .35s ease}
.nav a:hover::after,.nav a[aria-current="page"]::after{width:100%}

/* card e blocchi: sollevamento al passaggio */
.coll,.ambito,.fam{transition:transform .5s cubic-bezier(.22,.61,.36,1),box-shadow .5s ease}
.coll:hover,.ambito:hover{transform:translateY(-8px)}
.ambito:hover{box-shadow:0 18px 40px rgba(46,39,33,.10)}
.fam:hover{transform:translateY(-5px)}

/* immagini: leggero zoom dentro la cornice */
.coll img,.banda img,.scheda img,.due img{transition:transform 1.1s cubic-bezier(.22,.61,.36,1),filter .6s ease}
.coll:hover img{filter:brightness(1.06)}
.banda:hover img{transform:scale(1.035)}
a .banda .cit{transition:letter-spacing .6s ease}
a:hover .banda .cit{letter-spacing:.015em}

/* pulsanti: micro-sollevamento */
.btn{transition:background .3s ease,border-color .3s ease,transform .3s ease,box-shadow .3s ease}
.btn:hover{transform:translateY(-2px)}
.btn--pieno:hover{box-shadow:0 10px 24px rgba(176,82,45,.30)}

/* pastiglie colore in home: rimbalzo morbido */
.sez i[style*="border-radius:50%"]{transition:transform .35s cubic-bezier(.34,1.56,.64,1)}
.sez i[style*="border-radius:50%"]:hover{transform:scale(1.18)}

/* strisce famiglie colori */
.fam .strip i{transition:transform .35s ease}
.fam:hover .strip i{transform:scaleY(1.08)}

/* filetti: scorrimento leggero al passaggio */
.filetti .voce{transition:padding-left .4s ease}
.filetti .voce:hover{padding-left:10px}

/* accessibilità: niente animazioni per chi le riduce */
@media (prefers-reduced-motion: reduce){
  .reveal{opacity:1;transform:none;transition:none}
  .hero__bg,.hero__in>*{animation:none}
  *{transition-duration:.01ms !important}
}

/* ============================================================
   OTTIMIZZAZIONE TELEFONO E TABLET
   ============================================================ */

/* lo zoom dell'hero non deve creare scorrimento laterale */
.hero{overflow:hidden}
body{overflow-x:hidden}

/* qualunque griglia a due colonne va in colonna singola sotto i 900px,
   anche se ha larghezze scritte in linea (fix pagina Contatti) */
@media (max-width:900px){
  .due{grid-template-columns:1fr !important}
  .lato{border-top:1px solid var(--linea);padding-top:26px;margin-top:8px}
}

/* tablet: griglie a 2 colonne dove una sola è sprecata */
@media (min-width:601px) and (max-width:960px){
  .ambiti{grid-template-columns:repeat(2,1fr)}
  .griglia3{grid-template-columns:repeat(2,1fr);gap:26px}
  .griglia3 .coll:last-child{grid-column:1/-1}
  .griglia3 .coll:last-child img{aspect-ratio:2/1}
}

/* telefono: rifiniture */
@media (max-width:600px){
  .hero__in{padding:96px 0 64px}
  .hero .azioni .btn{width:100%;text-align:center}
  .coll img{aspect-ratio:4/3.4}
  .banda img{height:340px}
  .banda .testo{padding:16px}
  .banda .cit{font-size:17.5px}
  .scheda .sistemi .riga{grid-template-columns:1fr;gap:4px}
  .scheda .sistemi .riga b{font-size:18px}
  .figura .didasc{flex-direction:column;gap:4px}
  .sez{padding:48px 0}
  .numerate{gap:28px}
  .ftr .colonne{gap:28px}
  .ctaband .in{padding:64px var(--gut)}
  .campo input,.campo select,.campo textarea{font-size:16px} /* niente auto-zoom iOS */
  .btn{padding:14px 22px}
}

/* menu mobile: voce evidenziata + pulsante campioni dentro al menu */
@media (max-width:960px){
  .nav a[aria-current="page"]{color:var(--ruggine)}
  .nav a[aria-current="page"]::after{display:none}
}
/* CTA nel menu: nascosta su desktop (c'è il pulsante), visibile nel menu mobile */
.nav .nav-cta{display:none}
@media (max-width:960px){
  .nav .nav-cta{display:block;color:var(--ruggine);font-weight:500;border-top:1px solid var(--linea);margin-top:6px;padding-top:14px}
}

/* ============================================================
   ARIA E FOTO SUL TELEFONO (rifinitura 2)
   ============================================================ */
@media (max-width:600px){
  :root{--gut:26px}                      /* margine generoso a destra e sinistra */
  .hero{min-height:78vh}
  .hero__bg{filter:brightness(.66) saturate(.9)}
  .figura img{max-height:320px}          /* le foto larghe non vengono tagliate troppo */
  .scheda{padding:36px var(--gut)}       /* meno vuoti tra le collezioni, con margine ai lati */
  .scheda img{aspect-ratio:4/3.2}
  .coll h3{font-size:23px}
  h1{font-size:clamp(30px,8.5vw,40px)}
  h2{font-size:clamp(25px,7vw,34px)}
  .banda{border-radius:10px}
  .ambito{padding:22px}
  .lato .blocco{padding:18px 0}
}