/* Anteprima del portfolio in home (site-blocks.js > portfolioBlock): base comune + 7 stili.
   Si parte dal telefono (altezza naturale, colonne da --pf-cols-m); da 821px il blocco e' alto
   uno schermo e la lista riempie lo spazio sotto la testata (colonne --pf-cols-d, righe --pf-rows-d). */

/* ---------- base ---------- */
.pf { padding:72px 0; background:var(--ink); }
.pf .head { margin-bottom:28px; }
.pf-head-bare { justify-content:flex-end; align-items:flex-end; }
.pf-tools { display:flex; align-items:center; gap:10px; }
.pf-link { display:inline-flex; align-items:center; gap:10px; height:42px; padding:0 18px; border-radius:40px; border:1px solid #ffffff33; font-size:13px; letter-spacing:.01em; white-space:nowrap; transition:background .35s, color .35s, border-color .35s; }
.pf-arrow { display:inline-block; transition:transform .45s var(--ease); }
.pf-link:hover { background:#fff; color:var(--ink); border-color:#fff; }
.pf-link:hover .pf-arrow { transform:translateX(4px); }

.pf-grid { list-style:none; display:grid; grid-template-columns:repeat(var(--pf-cols-m,2), minmax(0,1fr)); gap:8px; padding:0 6vw; }
.pf-m3 .pf-grid { gap:4px; }
.pf-tile { position:relative; min-width:0; aspect-ratio:4/5; overflow:hidden; border-radius:3px; background:#151515; isolation:isolate; }
.pf-m3 .pf-tile { border-radius:2px; }
.pf-a { position:relative; display:block; width:100%; height:100%; }
.pf-a:focus-visible { outline:2px solid #fff; outline-offset:-2px; border-radius:inherit; }
.pf-img { opacity:0; transform:scale(1.015); transition:opacity .9s var(--ease), transform 1.4s var(--ease); }
.pf-img.ld { opacity:1; transform:none; }
.pf-cap { position:absolute; left:0; right:0; bottom:0; z-index:1; padding:44px 16px 14px; font-size:13px; line-height:1.35; color:#fff; background:linear-gradient(0deg,#000a,#0000); opacity:0; transform:translateY(8px); transition:opacity .45s var(--ease), transform .45s var(--ease); pointer-events:none; }
@media (hover:hover) {
  .pf-a:hover .pf-img.ld { transform:scale(1.045); }
  .pf-a:hover .pf-cap, .pf-a:focus-visible .pf-cap { opacity:1; transform:none; }
}
/* "+N" verso il portfolio completo: la foto sotto resta, velata */
.pf-more { position:absolute; inset:0; z-index:3; display:none; flex-direction:column; align-items:center; justify-content:center; gap:6px; color:#fff; background:#0a0a0a9e; -webkit-backdrop-filter:blur(10px) saturate(1.1); backdrop-filter:blur(10px) saturate(1.1); transition:background .45s var(--ease); }
.pf-more:hover { background:#0a0a0a73; }
.pf-more-n { font-family:var(--serif); font-size:clamp(30px,3.4vw,56px); line-height:1; letter-spacing:-.02em; }
.pf-more-t { font-size:11px; letter-spacing:.14em; text-transform:uppercase; color:#ffffffbf; }
.pf-m3 .pf-more-n { font-size:28px; }
.pf-m3 .pf-more-t { font-size:9.5px; letter-spacing:.1em; }
.pf-empty { padding:0 6vw; color:var(--mute); }
@media (max-width:820px) {
  .pf .head { flex-direction:row; align-items:center; }   /* titolo a sinistra, "View all" a destra */
  .pf .head h2 { min-width:0; }
  .pf .pf-grid > .pf-d-only { display:none; }   /* quante caselle su ogni schermo (site-blocks.js decide quali) */
}
.pf-more-m { display:flex; }

/* ---------- 2 · mosaico: la prima grande ---------- */
.pf-s-mosaic .pf-lead { grid-column:1 / -1; aspect-ratio:4 / 4.4; }

/* ---------- 3 · muratura: proporzioni vere, fondo irregolare che sfuma ----------
   Su telefono le righe sono un massimo: con poche foto il blocco finisce dove finiscono loro. */
.pf-mwrap { position:relative; overflow:hidden; max-height:calc(88vw / var(--pf-cols-m,2) * 1.25 * var(--pf-rows-m,3)); }
.pf-s-masonry .pf-grid { display:block; columns:var(--pf-cols-m,2); column-gap:8px; }
.pf-s-masonry .pf-tile { aspect-ratio:auto; break-inside:avoid; margin-bottom:8px; }
.pf-m3.pf-s-masonry .pf-grid { column-gap:4px; }
.pf-m3.pf-s-masonry .pf-tile { margin-bottom:4px; }
.pf-s-masonry .pf-img { height:auto; }
.pf-s-masonry .pf-img:not(.ld) { aspect-ratio:4/5; }   /* segnaposto finche' non arriva */
.pf-mwrap::after { content:""; position:absolute; left:0; right:0; bottom:0; z-index:2; height:30%; background:linear-gradient(0deg, var(--ink) 8%, #0a0a0a00); pointer-events:none; }

/* ---------- 4 · nastro: una fila che scorre di lato ---------- */
.pf-grid.pf-rail { display:flex; gap:10px; height:min(64svh,118vw); overflow-x:auto; overflow-y:hidden; scroll-snap-type:x mandatory; scroll-padding-inline:6vw; scrollbar-width:none; overscroll-behavior-x:contain; touch-action:pan-x pan-y pinch-zoom; }
.pf-rail::-webkit-scrollbar { display:none; }
.pf-s-strip .pf-tile { flex:none; height:100%; aspect-ratio:var(--r,.8); scroll-snap-align:start; }
.pf-s-strip .pf-cap { opacity:1; transform:none; }
.pf-end .pf-more { display:flex; }
.pf-end { aspect-ratio:.8; }

/* ---------- 5 · sfalsata: ogni colonna cala un po' (top, cosi' l'entrata resta libera) ---------- */
.pf-s-stagger .pf-tile { top:var(--pf-off-m,0); }
.pf-s-stagger .pf-grid { padding-bottom:calc(88vw / var(--pf-cols-m,2) * 1.25 * .36); }

/* ---------- 6 · protagonista: una grande che cambia + miniature ---------- */
.pf-spot { display:grid; gap:10px; padding:0 6vw; }
.pf-stage { position:relative; display:block; aspect-ratio:4/5; overflow:hidden; border-radius:3px; background:#151515; }
.pf-stage::after { content:""; position:absolute; left:0; right:0; bottom:0; z-index:1; height:45%; background:linear-gradient(0deg,#0009,#0000); pointer-events:none; }
.pf-big { position:absolute; inset:0; opacity:0; transition:opacity 1.1s var(--ease), transform 6s linear; }
.pf-big.on.ld { opacity:1; transform:scale(1.03); }
.pf-stage-cap { position:absolute; left:18px; right:18px; bottom:16px; z-index:2; font-family:var(--serif); font-size:24px; line-height:1.15; letter-spacing:-.01em; }
.pf-stage-cap small { display:block; margin-bottom:6px; font-family:var(--sans); font-size:11px; letter-spacing:.14em; text-transform:uppercase; opacity:.7; }
.pf-grid.pf-thumbs { display:flex; gap:6px; padding:0; overflow-x:auto; scrollbar-width:none; }
.pf-thumbs::-webkit-scrollbar { display:none; }
.pf-thumbs .pf-tile { flex:0 0 22%; aspect-ratio:1; opacity:.5; transition:opacity .4s; }
.pf-thumbs .pf-tile.on { opacity:1; }
.pf-thumbs .pf-tile.on::after { content:""; position:absolute; inset:0; z-index:2; border:1.5px solid #fff; border-radius:inherit; pointer-events:none; }
.pf-thumbs .pf-cap { display:none; }

/* ---------- 7 · provino: pellicola con perforazioni e numeri di fotogramma ---------- */
.pf-film { position:relative; margin:0 6vw; padding:26px 12px; border-radius:6px; background:#141210; }
.pf-film::before, .pf-film::after { content:""; position:absolute; left:12px; right:12px; height:8px; border-radius:2px; background:repeating-linear-gradient(90deg, var(--ink) 0 11px, #0000 11px 24px); }
.pf-film::before { top:9px; } .pf-film::after { bottom:9px; }
.pf-film .pf-grid { padding:0; gap:20px 8px; }
.pf-s-contact .pf-tile { display:flex; flex-direction:column; aspect-ratio:auto; overflow:visible; background:none; border-radius:0; }
.pf-s-contact .pf-a { aspect-ratio:4/5; overflow:hidden; border-radius:1px; background:#1c1a17; }
.pf-frame { display:flex; gap:8px; min-width:0; padding-top:6px; font:500 10.5px/1.2 ui-monospace, "SF Mono", Menlo, monospace; letter-spacing:.08em; }
.pf-frame b { font-weight:500; color:#d8a24a; white-space:nowrap; }
.pf-frame em { font-style:normal; color:var(--mute); overflow:hidden; text-overflow:ellipsis; white-space:nowrap; }
.pf-m3 .pf-frame em { display:none; }

/* ---------- desktop: un blocco = uno schermo ---------- */
@media (min-width:821px) {
  .pf { display:flex; flex-direction:column; padding:clamp(28px,5vh,56px) 0 clamp(32px,6vh,72px); }
  .pf .head { margin-bottom:clamp(20px,4vh,48px); flex:none; }
  .has-foot.pf { padding-bottom:clamp(64px,9vh,96px); }
  .pf-link { height:48px; padding:0 22px; font-size:14px; }
  .pf-grid { flex:1; min-height:0; gap:14px; grid-template-columns:repeat(var(--pf-cols-d,4), minmax(0,1fr)); grid-template-rows:repeat(var(--pf-rows-d,2), minmax(0,1fr)); }
  .pf-tile { aspect-ratio:auto; border-radius:4px; }
  .pf .pf-grid > .pf-m-only { display:none; }
  .pf-more-m { display:none; }
  .pf-more-d { display:flex; }

  .pf-s-mosaic .pf-lead { grid-column:span 2; grid-row:span 2; aspect-ratio:auto; }

  .pf-mwrap { flex:1; min-height:0; max-height:none; }
  .pf-s-masonry .pf-grid { columns:var(--pf-cols-d,4); column-gap:14px; }
  .pf-s-masonry .pf-tile { margin-bottom:14px; }

  .pf-grid.pf-rail { flex:1; height:auto; gap:14px; }

  .pf-s-stagger .pf-grid { flex:none; grid-template-rows:none; padding-bottom:0; }   /* alta quanto serve: la taglia il fondo della sezione */
  .pf-s-stagger .pf-tile { top:var(--pf-off-d,0); aspect-ratio:4/5; }
  .pf-s-stagger::after { content:""; position:absolute; left:0; right:0; bottom:0; z-index:2; height:22%; background:linear-gradient(0deg, var(--ink) 10%, #0a0a0a00); pointer-events:none; }

  .pf-spot { flex:1; min-height:0; grid-template-columns:1.55fr 1fr; gap:22px; }
  .pf-stage { aspect-ratio:auto; border-radius:4px; }
  .pf-stage-cap { left:26px; right:26px; bottom:24px; font-size:clamp(26px,2.4vw,38px); }
  .pf-grid.pf-thumbs { display:grid; min-height:0; overflow:visible; grid-template-columns:repeat(3, minmax(0,1fr)); grid-template-rows:none; grid-auto-rows:minmax(0,1fr); gap:10px; }
  .pf-thumbs .pf-tile { aspect-ratio:auto; cursor:pointer; }
  .pf-thumbs .pf-tile:hover { opacity:1; }

  .pf-film { flex:1; min-height:0; display:flex; padding:30px 24px; }
  .pf-film .pf-grid { gap:30px 12px; }
  .pf-s-contact .pf-tile { min-height:0; }
  .pf-s-contact .pf-a { flex:1; min-height:0; aspect-ratio:auto; }
}

@media (prefers-reduced-motion:reduce) { .pf-img, .pf-big { transition:none; } .pf-big.on.ld { transform:none; } }