/* ==========================================================================
   Carlo Poerio — studio grafico. Mockup portfolio.
   Palette e marchio ricavati dal book: salvia #C0C2A2, grigio #9A9A9E.
   Il "palco" (.stage) riprende il fondo sfumato delle pagine stampate.
   ========================================================================== */

:root{
  --paper:#FBFBF9;
  --paper-warm:#F4F4F0;
  --stage-edge:#E7E7E0;
  --sage:#C0C2A2;
  --sage-ink:#6B7046;
  --ink:#3C3D40;
  --ink-soft:#77787D;
  --line:#E3E3DC;
  --night:#32332E;

  /* Didot e Gill Sans sono proprietari e non esistono come webfont libero:
     se sono installati in locale (Didot su macOS/iOS) vengono usati quelli,
     altrimenti si ricade sui più vicini disponibili da Google Fonts —
     Bodoni Moda, didone come Didot, e Cabin, disegnato sulle forme di Gill. */
  --f-display:"Didot", "Didot LT STD", "Bodoni Moda", "Times New Roman", serif;
  --f-body:"Gill Sans", "Gill Sans MT", "Cabin", -apple-system, "Helvetica Neue", Arial, sans-serif;
  --f-util:"Gill Sans", "Gill Sans MT", "Cabin", -apple-system, "Helvetica Neue", Arial, sans-serif;

  --pad:clamp(20px, 5vw, 88px);
  --gap:clamp(18px, 2.4vw, 34px);
  --rule:1px solid var(--line);
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font:400 17px/1.62 var(--f-body);
  -webkit-font-smoothing:antialiased;
  letter-spacing:.005em;
}
img{max-width:100%;display:block}
a{color:inherit}
h1,h2,h3{margin:0;font-weight:400}
ul,ol{margin:0;padding:0;list-style:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
:focus-visible{outline:2px solid var(--sage-ink);outline-offset:3px;border-radius:2px}

.skip{position:absolute;left:-9999px;top:0;background:var(--night);color:#fff;padding:10px 16px;z-index:99}
.skip:focus{left:8px;top:8px}

/* ---------- palco: il fondo delle pagine del book -------------------------- */
.stage{
  position:relative;
  background:radial-gradient(118% 118% at 50% 32%, #FFFFFF 0%, #FAFAF7 54%, var(--paper-warm) 82%, var(--stage-edge) 100%);
  display:flex;align-items:center;justify-content:center;
  overflow:hidden;
}
.stage img{width:100%;height:100%;object-fit:contain}

/* ---------- header --------------------------------------------------------- */
.site-head{
  position:sticky;top:0;z-index:40;
  display:flex;align-items:center;justify-content:space-between;
  gap:24px;padding:14px var(--pad);
  background:rgba(251,251,249,.86);
  backdrop-filter:saturate(1.2) blur(10px);
  border-bottom:var(--rule);
}
.brand img{width:clamp(150px,15vw,190px)}
.site-nav{display:flex;gap:clamp(14px,2vw,30px);align-items:center}
.site-nav a{
  text-decoration:none;font-size:13.5px;letter-spacing:.10em;text-transform:uppercase;
  color:var(--ink-soft);padding:6px 0;position:relative;
}
.site-nav a::after{
  content:"";position:absolute;left:0;right:100%;bottom:0;height:1px;background:var(--sage);
  transition:right .35s cubic-bezier(.2,.7,.3,1);
}
.site-nav a:hover::after,.site-nav a:focus-visible::after{right:0}
.site-nav .nav-cta{color:var(--ink)}
.nav-toggle{display:none;width:38px;height:32px;padding:6px}
.nav-toggle span{display:block;height:1px;background:var(--ink);margin:6px 0;transition:transform .3s}

/* ---------- hero ----------------------------------------------------------- */
/* La seconda colonna resta vuota, ma più stretta di quando ospitava la figura:
   al titolo servono 8.13em per non spezzarsi (misurati in Bodoni Moda). Il
   margine tiene conto del fatto che su macOS il titolo è in Didot, di cui non
   conosciamo le metriche. */
.hero{
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,.5fr);
  align-items:center;gap:clamp(24px,4vw,64px);
  padding:clamp(48px,8vh,110px) 0 clamp(48px,8vh,96px) var(--pad);
}
.eyebrow{
  margin:0 0 26px;font-family:var(--f-util);font-size:12px;font-weight:400;
  letter-spacing:.20em;text-transform:uppercase;color:var(--sage-ink);
}
.hero h1{
  font-family:var(--f-display);
  font-size:clamp(42px,6.2vw,90px);
  line-height:.98;letter-spacing:-.015em;margin:0;
  white-space:nowrap;   /* le due righe sono solo quelle del <br> */
}

.ref{font-family:var(--f-util);font-size:12px;letter-spacing:.06em;color:var(--sage-ink)}

/* ---------- sezioni -------------------------------------------------------- */
.section{padding:clamp(56px,9vh,120px) var(--pad)}
.section-head{max-width:56ch;margin-bottom:clamp(28px,4vh,48px)}
.section-title{
  font-family:var(--f-display);font-size:clamp(26px,3vw,40px);letter-spacing:-.01em;margin-bottom:12px;
}
.section-note{margin:0;color:var(--ink-soft);font-size:15.5px;max-width:52ch}

/* ---------- filtri --------------------------------------------------------- */
.filters{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:clamp(24px,3vh,40px)}
.filter{
  font-family:var(--f-util);font-size:12px;letter-spacing:.10em;text-transform:uppercase;
  color:var(--ink-soft);padding:9px 16px;border:var(--rule);border-radius:999px;
  transition:color .25s, border-color .25s, background-color .25s;
}
.filter:hover{color:var(--ink);border-color:#CFCFC5}
.filter.is-on{color:#fff;background:var(--night);border-color:var(--night)}

/* ---------- griglia lavori ------------------------------------------------- */
.grid{display:grid;grid-template-columns:repeat(12,1fr);gap:var(--gap) var(--gap)}
.card{grid-column:span 6;display:block;text-align:left;width:100%;padding:0}
.card[data-span="5"]{grid-column:span 5}
.card[data-span="6"]{grid-column:span 6}
.card[data-span="7"]{grid-column:span 7}
.card.is-hidden{display:none}
.card .stage{aspect-ratio:4/3;border-radius:2px}
.card .stage img{transition:transform .6s cubic-bezier(.2,.7,.3,1)}
.card:hover .stage img,.card:focus-visible .stage img{transform:scale(1.028)}
.card-cap{display:flex;gap:14px;padding:14px 2px 0;border-top:var(--rule);margin-top:14px}
.card-cap .ref{padding-top:2px;flex:0 0 auto}
.card h3{font-size:17px;font-weight:400;letter-spacing:.005em}
.card p{margin:2px 0 0;font-size:14px;color:var(--ink-soft);line-height:1.45}
.card .cat{
  margin-top:8px;display:inline-block;font-family:var(--f-util);font-size:11px;
  letter-spacing:.12em;text-transform:uppercase;color:var(--sage-ink);
}

/* ---------- tavole marchi -------------------------------------------------- */
.section--marchi{background:linear-gradient(180deg,transparent,#F6F6F2 18%,#F6F6F2 82%,transparent)}
.sheets{
  display:grid;grid-auto-flow:column;grid-auto-columns:minmax(320px,42vw);
  gap:var(--gap);overflow-x:auto;padding-bottom:14px;
  scroll-snap-type:x mandatory;scrollbar-width:thin;
}
/* niente riquadro né fondo proprio: le tavole poggiano sul fondo della sezione.
   Il bianco del JPEG sparisce con multiply (bianco × fondo = fondo), così le
   linee della griglia restano e i loghi si scuriscono in modo impercettibile. */
.sheets .stage{aspect-ratio:16/10;scroll-snap-align:start;background:none}
.sheets .stage img{padding:2%;mix-blend-mode:multiply}
.sheet{padding:0;width:100%;cursor:zoom-in}   /* azzera il padding nativo del button */
/* Le tavole restano in grigio finché non le si sfiora. Solo dove il puntatore
   esiste davvero: su touch non c'è hover, quindi lì partono già a colori. */
@media (hover:hover){
  .sheet img{filter:grayscale(1);transition:filter .5s cubic-bezier(.2,.7,.3,1)}
  .sheet:hover img,.sheet:focus-visible img{filter:grayscale(0)}
}
.sheets-hint{margin:14px 0 0;font-family:var(--f-util);font-size:12px;letter-spacing:.08em;color:var(--ink-soft)}

/* ---------- divisore marchio ----------------------------------------------- */
.divider{display:flex;justify-content:center;padding:clamp(30px,6vh,70px) 0}
.divider img{width:52px;opacity:.9}

/* ---------- studio --------------------------------------------------------- */
.section--studio{border-top:var(--rule)}
.studio{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,1fr);gap:clamp(28px,5vw,80px)}
.bio-lead{font-size:clamp(19px,1.7vw,25px);line-height:1.5;color:var(--ink);margin:0 0 22px}
.studio-bio p{color:var(--ink-soft);max-width:56ch}
.studio-cols{display:grid;grid-template-columns:1fr 1fr;gap:clamp(20px,3vw,44px);padding-top:8px}
.col-title{
  font-family:var(--f-util);font-size:11.5px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--sage-ink);padding-bottom:12px;margin-bottom:16px;border-bottom:var(--rule);
}
.list li{padding:7px 0;font-size:15px;color:var(--ink-soft);border-bottom:1px dotted #E8E8E1}
.list--clients li{font-size:14.5px}

/* ---------- footer --------------------------------------------------------- */
.site-foot{background:var(--night);color:#E9E9E2;padding:clamp(52px,8vh,96px) var(--pad) 34px;margin-top:clamp(40px,6vh,80px)}
.foot-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:clamp(28px,4vw,60px)}
.foot-logo{width:min(210px,100%);margin-bottom:0}
.foot-contact h3{
  font-family:var(--f-util);font-size:11.5px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--sage);margin-bottom:14px;padding-bottom:10px;border-bottom:1px solid rgba(233,233,226,.18);
}
.foot-contact p{margin:0 0 10px;font-size:15px;color:#CFCFC6}
.foot-contact a{text-decoration:none;border-bottom:1px solid rgba(192,194,162,.4);padding-bottom:2px}
.foot-contact a:hover{border-color:var(--sage);color:#fff}
.foot-note{margin:clamp(40px,6vh,72px) 0 0;padding-top:20px;border-top:1px solid rgba(233,233,226,.14);font-size:12.5px;color:#9C9C93}

/* ---------- overlay progetto ----------------------------------------------- */
.overlay{position:fixed;inset:0;z-index:60;background:var(--paper);overflow-y:auto;opacity:0;transition:opacity .3s}
.overlay.is-open{opacity:1}
.ov-close{
  position:fixed;top:18px;right:var(--pad);z-index:2;
  font-family:var(--f-util);font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--ink-soft);
  background:rgba(251,251,249,.9);padding:10px 14px;border:var(--rule);border-radius:999px;
}
.ov-close:hover{color:var(--ink);border-color:#CFCFC5}
.ov-inner{display:grid;grid-template-columns:minmax(0,340px) minmax(0,1fr);gap:clamp(24px,4vw,64px);padding:clamp(64px,9vh,110px) var(--pad) var(--pad)}
.ov-caption{position:sticky;top:clamp(64px,9vh,110px);align-self:start}
.ov-caption h2{font-family:var(--f-display);font-size:clamp(28px,3.4vw,46px);line-height:1.04;margin:10px 0 12px}
.ov-sub{margin:0 0 26px;color:var(--ink-soft);font-size:16px;max-width:34ch}
.ov-services{border-top:var(--rule);margin-bottom:22px}
.ov-services li{padding:9px 0;border-bottom:1px dotted #E8E8E1;font-size:15px;color:var(--ink-soft);padding-left:18px;position:relative}
.ov-services li::before{content:"•";position:absolute;left:0;color:var(--sage)}
.ov-client{font-size:14px;color:var(--ink);margin:0 0 30px}
.ov-client b{font-weight:400;color:var(--ink-soft)}
.ov-nav{display:flex;gap:10px}
.ov-nav button{
  font-family:var(--f-util);font-size:11.5px;letter-spacing:.10em;text-transform:uppercase;
  color:var(--ink-soft);border:var(--rule);border-radius:999px;padding:9px 14px;transition:color .25s,border-color .25s;
}
.ov-nav button:hover{color:var(--ink);border-color:#CFCFC5}
.ov-figure .stage{min-height:min(52vh,420px);aspect-ratio:auto;border-radius:2px;padding:clamp(12px,2.2vw,34px)}
.ov-figure .stage img{width:auto;height:auto;max-width:100%;max-height:78vh}

/* ---------- lightbox tavole marchi ----------------------------------------- */
.lightbox{
  position:fixed;inset:0;z-index:70;display:flex;align-items:center;justify-content:center;
  gap:clamp(6px,2vw,24px);padding:clamp(58px,8vh,92px) clamp(10px,3vw,56px);
  background:rgba(50,51,46,.94);opacity:0;transition:opacity .3s;
}
.lightbox[hidden]{display:none}   /* display:flex vincerebbe sull'attributo */
.lightbox.is-open{opacity:1}
.lb-figure{
  margin:0;display:flex;background:var(--paper-warm);border-radius:2px;
  padding:clamp(8px,1.6vw,22px);min-width:0;
}
.lb-figure img{width:auto;height:auto;max-width:100%;max-height:78vh;object-fit:contain;mix-blend-mode:multiply}
.lb-close{
  position:absolute;top:18px;right:var(--pad);
  font-family:var(--f-util);font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:#CFCFC6;
  border:1px solid rgba(233,233,226,.28);padding:10px 14px;border-radius:999px;transition:color .25s,border-color .25s;
}
.lb-close:hover{color:#fff;border-color:rgba(233,233,226,.6)}
.lb-nav{
  flex:0 0 auto;width:46px;height:46px;border-radius:50%;font-size:17px;line-height:1;color:#CFCFC6;
  border:1px solid rgba(233,233,226,.28);transition:color .25s,border-color .25s,background-color .25s;
}
.lb-nav:hover{color:#fff;border-color:rgba(233,233,226,.6);background:rgba(233,233,226,.1)}
.lb-count{
  position:absolute;bottom:24px;left:50%;transform:translateX(-50%);margin:0;
  font-family:var(--f-util);font-size:12px;letter-spacing:.12em;color:#9C9C93;
}

/* ---------- animazioni ----------------------------------------------------- */
.load{opacity:0;transform:translateY(14px);animation:rise .9s cubic-bezier(.2,.7,.3,1) forwards;animation-delay:var(--d,0ms)}
@keyframes rise{to{opacity:1;transform:none}}
.reveal{opacity:0;transform:translateY(16px);transition:opacity .7s cubic-bezier(.2,.7,.3,1), transform .7s cubic-bezier(.2,.7,.3,1)}
.reveal.is-in{opacity:1;transform:none}

/* ---------- responsive ----------------------------------------------------- */
@media (max-width:1080px){
  .hero{grid-template-columns:1fr;padding-right:var(--pad)}
  .ov-inner{grid-template-columns:1fr}
  .ov-caption{position:static}
  .ov-figure .stage{min-height:46vh}
}
@media (max-width:760px){
  body{font-size:16px}
  /* corpo calibrato perché "Grafica editoriale" (8.13em) entri sempre in una
     riga, fino ai 320px di larghezza */
  .hero h1{font-size:clamp(30px,8.8vw,48px)}
  .site-nav{
    position:absolute;top:100%;left:0;right:0;flex-direction:column;align-items:flex-start;gap:0;
    background:var(--paper);border-bottom:var(--rule);padding:6px var(--pad) 18px;display:none;
  }
  .site-nav.is-open{display:flex}
  .site-nav a{padding:12px 0;width:100%;border-bottom:1px dotted #E8E8E1}
  .nav-toggle{display:block}
  .card,.card[data-span="5"],.card[data-span="6"],.card[data-span="7"]{grid-column:span 12}
  .studio,.studio-cols,.foot-grid{grid-template-columns:1fr}
  .sheets{grid-auto-columns:82vw}
  .card .stage,.sheets .stage{aspect-ratio:3/2}
  /* niente spazio per le frecce ai lati: scendono in fondo, ai bordi */
  .lightbox{padding:64px 12px 84px}
  .lb-nav{position:absolute;bottom:20px}
  .lb-prev{left:16px}
  .lb-next{right:16px}
  .lb-figure img{max-height:70vh}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .load,.reveal{opacity:1;transform:none;animation:none;transition:none}
  .card .stage img,.sheet img{transition:none}
}