/* ============================================================
   CENTO ARREDAMENTI - sistema grafico anteprima (mockup)
   Stile: sobrio, architettonico. Bianco/nero + accento caldo.
   Toggle palette: Caldo (greige) <-> Architetturale (graphite).
   ============================================================ */
:root{
  --ink:#17140f;          /* near-black caldo */
  --ink-soft:#6d675e;     /* testo secondario */
  --line:#e7e3dc;         /* hairline */
  --paper:#faf9f7;        /* fondo pagina */
  --paper-2:#f2efe9;      /* fondo alternato */
  --dark:#171512;         /* sezioni scure */
  --accent:#8c7d66;       /* greige caldo (default) */
  --accent-ink:#6f6250;
}
html.theme-arch{
  --accent:#54555a;       /* graphite architetturale */
  --accent-ink:#3d3e42;
  --line:#e6e6e7;
  --paper:#fbfbfc;
  --paper-2:#f1f1f3;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:'Inter',-apple-system,BlinkMacSystemFont,sans-serif;color:var(--ink);background:var(--paper);font-weight:400;line-height:1.72;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
h1,h2,h3,h4,.disp{font-family:'Archivo','Inter',sans-serif;font-weight:600;line-height:1.06;letter-spacing:-.01em}
img{display:block;width:100%;height:100%;object-fit:cover}
a{color:inherit;text-decoration:none}
.container{max-width:1220px;margin:0 auto;padding:0 42px}
.narrow{max-width:840px}
.kicker{font-size:.72rem;letter-spacing:.34em;text-transform:uppercase;color:var(--accent-ink);font-weight:600}
.center{text-align:center}
.lead{font-size:1.18rem;color:#3a352d;line-height:1.75}
.muted{color:var(--ink-soft)}

/* ---------- PREVIEW BAR ---------- */
.previewbar{position:fixed;top:0;left:0;right:0;z-index:90;background:#100f0d;color:#c9c4ba;font-size:.74rem;letter-spacing:.02em;text-align:center;padding:9px 14px}
.previewbar b{color:#fff}
.previewbar .links{margin-top:5px;display:flex;flex-wrap:wrap;gap:4px 16px;justify-content:center}
.previewbar .links a{color:#948d81;text-transform:uppercase;letter-spacing:.14em;font-size:.64rem}
.previewbar .links a:hover{color:#fff}

/* ---------- NAV ---------- */
nav{position:fixed;top:46px;left:0;right:0;z-index:60;display:flex;align-items:center;justify-content:space-between;padding:20px 42px;color:#fff;transition:background .35s,color .35s,box-shadow .35s,padding .35s}
nav.scrolled{background:var(--paper);color:var(--ink);box-shadow:0 1px 0 var(--line);padding:14px 42px}
nav.solid{position:sticky;background:var(--paper);color:var(--ink);box-shadow:0 1px 0 var(--line)}
.brand{display:inline-flex;align-items:center;gap:0}
.brand img{width:auto;height:38px;object-fit:contain;filter:brightness(0) invert(1);transition:filter .35s}
nav.scrolled .brand img,nav.solid .brand img{filter:none}
.menu{display:flex;gap:36px;align-items:center;font-size:.78rem;letter-spacing:.14em;text-transform:uppercase;font-weight:500}
.menu a{position:relative;padding:4px 0;opacity:.92}
.menu a:hover{opacity:1}
.menu a.cta-link{border:1px solid currentColor;padding:9px 18px;letter-spacing:.16em}
.menu a.cta-link:hover{background:var(--ink);color:var(--paper);border-color:var(--ink)}
nav:not(.scrolled):not(.solid) .menu a.cta-link:hover{background:#fff;color:var(--ink);border-color:#fff}
.lang{font-size:.72rem;letter-spacing:.1em;opacity:.85}
.lang b{font-weight:700}
.burger{display:none}

/* ============================================================
   HUB - SPLIT HERO (proposta A): due mondi affiancati
   ============================================================ */
.splithero{position:relative;height:100vh;min-height:660px;display:flex;overflow:hidden}
.splithero .half{position:relative;flex:1;overflow:hidden;transition:flex .6s cubic-bezier(.6,0,.2,1)}
.splithero .half img{position:absolute;inset:0;transform:scale(1.04);transition:transform 1.1s ease,filter .5s}
.splithero .half::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(12,10,8,.34),rgba(12,10,8,.62));transition:background .5s}
.splithero .half .lbl{position:absolute;left:0;right:0;bottom:12%;z-index:3;text-align:center;color:#fff;padding:0 24px;transition:transform .5s}
.splithero .half .lbl .k{font-size:.72rem;letter-spacing:.32em;text-transform:uppercase;color:rgba(255,255,255,.78)}
.splithero .half .lbl h2{font-size:clamp(2rem,3.6vw,3.2rem);margin:12px 0 16px;color:#fff}
.splithero .half .lbl .go{display:inline-flex;align-items:center;gap:10px;font-size:.74rem;letter-spacing:.2em;text-transform:uppercase;border:1px solid rgba(255,255,255,.7);padding:12px 26px;transition:.25s}
.splithero .half:hover{flex:1.35}
.splithero .half:hover img{transform:scale(1.09)}
.splithero .half:hover::after{background:linear-gradient(180deg,rgba(12,10,8,.22),rgba(12,10,8,.5))}
.splithero .half:hover .go{background:#fff;color:var(--ink);border-color:#fff}
.splithero .divide{width:1px;background:rgba(255,255,255,.5);z-index:4}
.splithero .center-badge{position:absolute;top:0;left:50%;transform:translateX(-50%);z-index:5;pointer-events:none;text-align:center;padding-top:19vh}
.splithero .center-badge img{width:auto;height:74px;filter:brightness(0) invert(1);margin:0 auto}
.splithero .center-badge .tag{margin-top:20px;color:#fff;font-family:'Archivo',sans-serif;font-weight:500;letter-spacing:.42em;text-transform:uppercase;font-size:.82rem;text-indent:.42em}
.splithero .scrollcue{position:absolute;bottom:26px;left:50%;transform:translateX(-50%);z-index:5;color:rgba(255,255,255,.75);font-size:.66rem;letter-spacing:.26em;text-transform:uppercase;display:flex;flex-direction:column;align-items:center;gap:8px}
.splithero .scrollcue span{width:1px;height:34px;background:rgba(255,255,255,.5)}

/* ============================================================
   HERO full-bleed (proposta B hub + pagine verticali)
   ============================================================ */
.hero{position:relative;height:100vh;min-height:640px;display:flex;align-items:center;justify-content:center;text-align:center;color:#fff;overflow:hidden}
.hero.short{height:74vh;min-height:520px}
.hero .bg{position:absolute;inset:0}
.hero .bg img{transform:scale(1.03)}
.hero .bg::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(10,9,7,.5),rgba(10,9,7,.66))}
.hero .inner{position:relative;z-index:3;padding:0 30px;max-width:900px}
.hero .kicker{color:rgba(255,255,255,.8);margin-bottom:22px}
.hero h1{font-size:clamp(2.8rem,7vw,6rem);letter-spacing:-.02em}
.hero .sub{max-width:640px;margin:26px auto 0;font-size:1.1rem;color:rgba(255,255,255,.9);font-weight:400}
.hero .worldcards{display:flex;gap:18px;justify-content:center;margin-top:44px;flex-wrap:wrap}
.hero .worldcards a{display:inline-flex;align-items:center;gap:12px;background:rgba(255,255,255,.08);backdrop-filter:blur(3px);border:1px solid rgba(255,255,255,.5);color:#fff;padding:18px 30px;font-size:.82rem;letter-spacing:.16em;text-transform:uppercase;font-weight:500;transition:.25s}
.hero .worldcards a:hover{background:#fff;color:var(--ink)}
.hero .worldcards a b{font-weight:700}

/* ---------- SECTIONS ---------- */
section.block{padding:118px 0}
section.block.tight{padding:82px 0}
.alt{background:var(--paper-2)}
.eyebrow{max-width:760px}
.eyebrow h2{font-size:clamp(2.1rem,4.4vw,3.4rem);margin:16px 0 0}
.section-head{max-width:720px;margin:0 auto 64px}
.section-head.left{margin-left:0}
.section-head h2{font-size:clamp(2rem,4vw,3rem);margin:14px 0 0}
.section-head p{margin-top:20px;color:var(--ink-soft);font-size:1.08rem}

/* intro manifesto */
.manifesto h2{font-size:clamp(2.2rem,5vw,3.7rem);max-width:20ch;margin:0 auto;letter-spacing:-.02em}
.manifesto p{margin-top:30px;max-width:640px;margin-left:auto;margin-right:auto}

/* numbers */
.numbers{display:flex;justify-content:center;gap:0;flex-wrap:wrap;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.numbers .num{flex:1;min-width:180px;text-align:center;padding:56px 20px;border-right:1px solid var(--line)}
.numbers .num:last-child{border-right:none}
.num h3{font-size:3.4rem;letter-spacing:-.03em}
.num p{font-size:.72rem;letter-spacing:.2em;text-transform:uppercase;color:var(--ink-soft);margin-top:8px}

/* split testo + immagine */
.split{display:grid;grid-template-columns:1fr 1fr;align-items:stretch}
.split .txt{padding:96px 74px;display:flex;flex-direction:column;justify-content:center}
.split .txt h2{font-size:clamp(1.9rem,3.6vw,2.9rem)}
.split .txt .prose{margin-top:22px}
.split .txt .prose p{color:#3a352d;margin-bottom:16px;font-size:1.06rem}
.split .txt .prose p:last-child{margin-bottom:0}
.split .ph{min-height:520px;position:relative;overflow:hidden}
.split.flip .txt{order:2}
.split.flip .ph{order:1}

/* servizi - griglia lista chiusa */
.services{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line)}
.services .s{background:var(--paper);padding:34px 28px;min-height:170px;display:flex;flex-direction:column;justify-content:space-between;transition:background .25s}
.services .s:hover{background:var(--paper-2)}
.services .s .n{font-family:'Archivo',sans-serif;font-size:.8rem;color:var(--accent-ink);letter-spacing:.12em}
.services .s h3{font-size:1.18rem;margin-top:auto;font-weight:600}
.services .s p{font-size:.86rem;color:var(--ink-soft);margin-top:8px;line-height:1.55}

/* servizi - card con immagine (stile portfolio elegante) */
.svc-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:40px 30px}
.svc-card{display:block;color:inherit}
.svc-card .thumb{aspect-ratio:4/3;overflow:hidden;border-radius:6px;background:var(--paper-2)}
.svc-card .thumb img{transition:transform 1s ease}
.svc-card:hover .thumb img{transform:scale(1.045)}
.svc-card h3{font-size:1.18rem;margin-top:18px;font-weight:600;letter-spacing:-.01em}
.svc-card p{font-size:.9rem;color:var(--ink-soft);margin-top:6px;line-height:1.55}
.svc-card .more{display:inline-block;margin-top:11px;font-size:.66rem;letter-spacing:.2em;text-transform:uppercase;color:var(--accent-ink);border-bottom:1px solid var(--line);padding-bottom:3px}

/* blocchi lavorazioni (muti: etichetta + foto) */
.works{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.works .w{position:relative;aspect-ratio:3/4;overflow:hidden;background:var(--dark)}
.works .w img{transition:transform 1.1s ease;opacity:.92}
.works .w:hover img{transform:scale(1.06);opacity:1}
.works .w::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(0,0,0,.1),rgba(0,0,0,.62))}
.works .w .cap{position:absolute;left:0;right:0;bottom:0;z-index:2;padding:24px;color:#fff}
.works .w .cap h3{font-size:1.15rem;letter-spacing:.02em;font-weight:600}
.works-note{margin-top:26px;text-align:center;color:var(--ink-soft);font-size:.9rem}

/* gallery lavori */
.gallery{display:grid;grid-template-columns:repeat(6,1fr);grid-auto-rows:200px;gap:14px}
.gallery .g{overflow:hidden;position:relative}
.gallery .g img{transition:transform 1.1s ease}
.gallery .g:hover img{transform:scale(1.05)}
.gallery .g.w2{grid-column:span 2}.gallery .g.w3{grid-column:span 3}.gallery .g.w4{grid-column:span 4}
.gallery .g.h2{grid-row:span 2}

/* tiles due mondi (hub) */
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:0}
.tile{position:relative;aspect-ratio:16/11;overflow:hidden;display:block}
.tile img{transition:transform 1.2s ease}
.tile:hover img{transform:scale(1.05)}
.tile::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(0,0,0,.15),rgba(0,0,0,.62))}
.tile .cap{position:absolute;left:0;right:0;bottom:0;z-index:2;color:#fff;padding:44px}
.tile .cap .k{font-size:.68rem;letter-spacing:.28em;text-transform:uppercase;color:rgba(255,255,255,.8)}
.tile .cap h3{font-size:2.2rem;margin:10px 0 8px}
.tile .cap p{font-size:.95rem;color:rgba(255,255,255,.86);max-width:40ch}
.tile .cap .go{display:inline-block;margin-top:18px;font-size:.72rem;letter-spacing:.2em;text-transform:uppercase;border-bottom:1px solid rgba(255,255,255,.6);padding-bottom:4px}

/* metodo / steps */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:46px;margin-top:64px;text-align:left}
.step{border-top:1px solid var(--line);padding-top:22px}
.step .n{font-family:'Archivo',sans-serif;font-size:1.7rem;color:var(--accent-ink);font-weight:600}
.step h3{font-size:1.12rem;margin:12px 0 10px;font-weight:600}
.step p{font-size:.92rem;color:var(--ink-soft)}

/* valori / feature */
.feat{display:grid;grid-template-columns:repeat(3,1fr);gap:48px;text-align:left}
.feat .f{border-top:2px solid var(--ink);padding-top:22px}
.feat .f h3{font-size:1.2rem;margin-bottom:10px;font-weight:600}
.feat .f p{font-size:.96rem;color:var(--ink-soft)}

/* team */
.teamlead{display:grid;grid-template-columns:1.05fr .95fr;align-items:stretch}
.teamlead .txt{padding:100px 74px;display:flex;flex-direction:column;justify-content:center}
.teamlead .txt h2{font-size:clamp(1.9rem,3.6vw,2.9rem)}
.teamlead .txt p{margin:22px 0 0;color:#3a352d}
.teamlead .ph{min-height:520px;position:relative;overflow:hidden}
.people{display:grid;grid-template-columns:repeat(4,1fr);gap:28px;margin-top:60px}
.person .pic{aspect-ratio:3/4;overflow:hidden;margin-bottom:16px;background:var(--paper-2)}
.person h3{font-size:1.02rem;font-weight:600}
.person .role{font-size:.68rem;letter-spacing:.16em;text-transform:uppercase;color:var(--ink-soft);margin-top:4px}

/* partner logos */
.partners{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:44px 60px;margin-top:12px}
.partners img{width:auto;height:34px;object-fit:contain;filter:grayscale(1) opacity(.62);transition:.3s}
.partners img:hover{filter:grayscale(0) opacity(1)}

/* green band */
.green{background:var(--dark);color:#fff}
.green .kicker{color:rgba(255,255,255,.6)}
.green h2{font-size:clamp(2rem,4vw,3rem);color:#fff;max-width:18ch}
.green p{color:rgba(255,255,255,.82);margin-top:22px;max-width:620px}

/* buttons */
.btn{display:inline-block;border:1px solid var(--ink);padding:15px 34px;font-size:.74rem;letter-spacing:.2em;text-transform:uppercase;font-weight:600;transition:.25s;cursor:pointer;background:none;color:var(--ink)}
.btn:hover{background:var(--ink);color:var(--paper)}
.btn.light{border-color:#fff;color:#fff}
.btn.light:hover{background:#fff;color:var(--ink)}

/* CTA band */
.cta{text-align:center}
.cta h2{font-size:clamp(2.2rem,4.6vw,3.6rem)}
.cta p{margin:20px auto 38px;max-width:560px;color:var(--ink-soft)}
.ctaband{background:var(--dark);color:#fff}
.ctaband h2{color:#fff}
.ctaband p{color:rgba(255,255,255,.82)}

/* footer */
footer{background:#100f0d;color:rgba(255,255,255,.68);padding:78px 0 38px;font-size:.88rem}
.fcols{display:flex;justify-content:space-between;flex-wrap:wrap;gap:44px}
footer .brand img{height:40px;filter:brightness(0) invert(1);margin-bottom:18px}
footer a:hover{color:#fff}
.fnav{display:flex;flex-direction:column;gap:9px;font-size:.82rem}
.fbar{border-top:1px solid rgba(255,255,255,.13);margin-top:52px;padding-top:24px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:14px;font-size:.74rem;letter-spacing:.04em;color:rgba(255,255,255,.5)}
.fbar a{margin-left:22px}

/* palette toggle */
.palette{position:fixed;left:20px;bottom:20px;z-index:70;display:flex;align-items:center;background:var(--paper);border:1px solid var(--line);border-radius:40px;padding:5px;box-shadow:0 8px 26px rgba(0,0,0,.16);font-size:.62rem;letter-spacing:.04em;text-transform:uppercase;font-weight:600}
.palette button{border:none;background:none;cursor:pointer;padding:9px 15px;border-radius:30px;font:inherit;letter-spacing:inherit;text-transform:inherit;color:#9a9388}
.palette button.on{background:var(--ink);color:var(--paper)}

/* whatsapp */
.wa{position:fixed;right:20px;bottom:20px;z-index:70;background:#25d366;color:#fff;width:54px;height:54px;border-radius:50%;display:flex;align-items:center;justify-content:center;box-shadow:0 6px 22px rgba(0,0,0,.25)}
.wa svg{width:26px;height:26px}

/* reveal on scroll - solo con JS attivo (senza JS resta tutto visibile) */
html.js .reveal{opacity:0;transform:translateY(22px);transition:opacity .7s ease,transform .7s ease}
html.js .reveal.in{opacity:1;transform:none}

/* ---------- responsive ---------- */
@media(max-width:960px){
  .container{padding:0 24px}
  nav{top:64px;padding:16px 24px}
  nav.scrolled{padding:12px 24px}
  .menu{display:none}
  .burger{display:block;font-size:1.5rem;cursor:pointer}
  .split{grid-template-columns:1fr}
  .split.flip .txt{order:1}.split.flip .ph{order:2}
  .split .txt{padding:56px 26px}
  .split .ph{min-height:340px}
  .services{grid-template-columns:1fr 1fr}
  .svc-grid{grid-template-columns:1fr 1fr;gap:28px 20px}
  .works{grid-template-columns:1fr 1fr}
  .steps{grid-template-columns:1fr 1fr;gap:32px}
  .feat{grid-template-columns:1fr;gap:30px}
  .grid2{grid-template-columns:1fr}
  .teamlead{grid-template-columns:1fr}
  .teamlead .txt{padding:56px 26px}
  .teamlead .ph{min-height:340px}
  .people{grid-template-columns:1fr 1fr;gap:22px}
  .gallery{grid-template-columns:repeat(2,1fr);grid-auto-rows:180px}
  .gallery .g.w2,.gallery .g.w3,.gallery .g.w4{grid-column:span 2}
  .numbers .num{border-right:none;border-bottom:1px solid var(--line)}
  section.block{padding:74px 0}
  /* split hero -> impilato su mobile */
  .splithero{flex-direction:column;height:auto;min-height:0}
  .splithero .half{min-height:52vh}
  .splithero .half:hover{flex:1}
  .splithero .center-badge{position:relative;padding:38px 0 6px;background:var(--dark)}
  .splithero .center-badge img{filter:brightness(0) invert(1)}
  .splithero .divide,.splithero .scrollcue{display:none}
}