/* ============================================================
   LUIGI PIRINA — style.css
   Colori: la fonte è BRIEF.md, qui stanno come variabili in :root.
   Font: ABC Diatype quando i file saranno in fonts/ (vedi sotto),
   nel frattempo Instrument Sans da Google Fonts (gratuito, con asse di
   larghezza 75–100: il nome apre compatto e si allarga scorrendo).
   ============================================================ */

:root {
  --c-bg: #F3F1EC;
  --c-ink: #111111;
  --c-muted: #6E6C68;
  --c-line: rgba(17, 17, 17, 0.14);

  --c-bvlgari: #DE8929;
  --c-jlc: #AD9B87;
  --c-timex: #B4B5BB;
  --c-d1: #222222;
  --c-freelancing: #DCEDEF;

  --font: "ABC Diatype", "Instrument Sans", "Helvetica Neue", Helvetica, Arial, sans-serif;

  --gutter: clamp(16px, 3vw, 48px);
  --gap: clamp(10px, 1.5vw, 22px);
  --top-h: 60px;
  --band: 100svh;           /* altezza della fascia fissa nome + filtri (dal JS) */
  --lead: 0px;              /* scroll durante il quale il nome si riduce (dal JS) */
  --name-wdth: 75;          /* larghezza del nome all'apertura, in % (75 = il più compatto del font); scorrendo arriva a 100 */

  /* Tre curve, sempre le stesse: entrate, riordino, hover. */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --ease-snap: cubic-bezier(0.22, 1, 0.36, 1);
}

/* ABC Diatype: quando i file sono in Sito/fonts/, togliere i commenti.
@font-face {
  font-family: "ABC Diatype";
  src: url("../fonts/ABCDiatype-Regular.woff2") format("woff2");
  font-weight: 400; font-style: normal; font-display: swap;
}
@font-face {
  font-family: "ABC Diatype";
  src: url("../fonts/ABCDiatype-Medium.woff2") format("woff2");
  font-weight: 500; font-style: normal; font-display: swap;
}
*/

/* ---------- base ---------- */

*, *::before, *::after { box-sizing: border-box; }

html {
  background: var(--c-bg);
  color: var(--c-ink);
  font-family: var(--font);
  -webkit-font-smoothing: antialiased;
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  margin: 0;
  font-size: 14px;
  line-height: 1.4;
  font-weight: 400;
  overflow-x: hidden;
}

img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; padding: 0; cursor: pointer; }
ul { list-style: none; margin: 0; padding: 0; }
[hidden] { display: none !important; }

:focus-visible { outline: 2px solid var(--c-ink); outline-offset: 3px; }

.visually-hidden {
  position: absolute; width: 1px; height: 1px; margin: -1px; padding: 0;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

.skip {
  position: absolute; left: var(--gutter); top: -48px;
  padding: 8px 12px; background: var(--c-ink); color: var(--c-bg); font-size: 12px;
  transition: top 200ms var(--ease-snap); z-index: 10;
}
.skip:focus { top: 12px; }

/* link con sottolineatura che scorre */
.u {
  position: relative;
  display: inline-flex; align-items: baseline; gap: 0.35em;
  font-size: 12px; letter-spacing: 0.02em;
}
.u::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: -3px; height: 1px;
  background: currentColor; transform: scaleX(0); transform-origin: left;
  transition: transform 400ms var(--ease-snap);
}
.u:hover::after, .u:focus-visible::after { transform: scaleX(1); }
.u .arrow { display: inline-block; transition: transform 400ms var(--ease-snap); }
.u:hover .arrow, .u:focus-visible .arrow { transform: translate(2px, -2px); }

/* ---------- header (fisso in alto) ---------- */

.top {
  position: sticky; top: 0; z-index: 6;
  display: flex; justify-content: space-between; align-items: center;
  min-height: var(--top-h);
  padding: 0 var(--gutter);
  background: var(--c-bg);
  opacity: 0;
}
.is-ready .top { animation: fade 500ms var(--ease-out) 60ms forwards; }

/* ---------- hero: nome, «Watch Designer», filtro ----------
   La fascia è fissa sotto la barra (sticky) a ogni larghezza. All'apertura il nome
   è compatto e a tutta larghezza (su telefono su due righe), il filtro sta appena
   sopra le strisce delle card; nei primi --lead px di scroll il nome si riduce, si
   allarga e sale (dal JS) finché sotto la fascia restano due righe di card; su
   telefono finché il nome è al suo minimo. */

.hero {
  position: sticky; top: var(--top-h); z-index: 5;
  height: calc(var(--band) - var(--top-h));
  background: var(--c-bg);
}
.name {
  position: absolute; left: var(--gutter); right: var(--gutter); top: 0;
  transform-origin: 0 0; will-change: transform;
}
.hero__row {
  position: absolute; left: var(--gutter); right: var(--gutter); bottom: var(--gap);
  will-change: transform;
}

.name {
  margin: 0;
  font-weight: 400;
  text-transform: uppercase;
  letter-spacing: -0.035em;
  line-height: 0.86;
  white-space: nowrap;
  font-stretch: 75%;                        /* compatto all'apertura (--name-wdth), scorrendo il JS lo porta al 100 % */
  font-size: clamp(2.6rem, 11vw, 20rem);   /* poi il JS la adatta alla larghezza */
}
.name__inner { display: inline-block; white-space: nowrap; }
.name__mask {
  display: inline-block; overflow: hidden; vertical-align: top;
  padding: 0.03em 0.03em 0.05em; margin: -0.03em -0.03em -0.05em;
}
.name__word { display: inline-block; transform: translateY(112%); }
.is-ready .name__word { animation: rise 720ms var(--ease-out) forwards; }
.is-ready .name__mask:nth-child(2) .name__word { animation-delay: 90ms; }

@media (max-width: 600px) {
  .name__mask { display: block; }       /* LUIGI sopra, PIRINA sotto */
  .name { line-height: 0.9; }
}

.hero__row {
  display: flex; justify-content: space-between; align-items: baseline;
  gap: var(--gap);                      /* lo spazio fra nome e riga lo mette il JS (layoutHero) */
}
.hero__row > * { opacity: 0; transform: translateY(12px); }
.is-ready .hero__row > * { animation: fadeup 600ms var(--ease-out) 260ms forwards; }

.role { margin: 0; font-size: 12px; letter-spacing: 0.02em; white-space: nowrap; }

@media (max-width: 600px) {
  .hero__row { flex-direction: column; align-items: flex-start; gap: 12px; }
  .filter { width: 100%; }
}

/* ---------- filtro ---------- */

.filter { min-width: 0; }
.filter__list {
  display: flex; gap: clamp(14px, 1.6vw, 26px);
  overflow-x: auto; scrollbar-width: none; -webkit-overflow-scrolling: touch;
  padding-bottom: 2px;
}
.filter__list::-webkit-scrollbar { display: none; }

.filter__btn {
  position: relative;
  font-size: 11px; letter-spacing: 0.12em; text-transform: uppercase; white-space: nowrap;
  padding: 4px 0;
  opacity: 0.42;
  transition: opacity 300ms var(--ease-snap), transform 160ms var(--ease-snap);
}
.filter__btn::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 1px;
  background: currentColor; transform: scaleX(0); transform-origin: left;
  transition: transform 400ms var(--ease-snap);
}
.filter__btn:hover, .filter__btn:focus-visible, .filter__btn.is-active { opacity: 1; }
.filter__btn.is-active::after { transform: scaleX(1); }
.filter__btn:active { transform: scale(0.97); }

/* ---------- griglia ---------- */

.work { margin-top: var(--lead); padding: 0 var(--gutter) var(--gutter); }

.grid {
  position: relative;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--gap);
}
@media (min-width: 720px)  { .grid { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
@media (min-width: 1100px) { .grid { grid-template-columns: repeat(4, minmax(0, 1fr)); } }
@media (min-width: 1600px) { .grid { grid-template-columns: repeat(5, minmax(0, 1fr)); } }

/* colore della card dal gruppo (un gruppo nuovo: una riga qui, una in BRIEF.md) */
.card[data-key="bvlgari"]     { --card-bg: var(--c-bvlgari); }
.card[data-key="jlc"]         { --card-bg: var(--c-jlc); }
.card[data-key="timex"]       { --card-bg: var(--c-timex); }
.card[data-key="d1"]          { --card-bg: var(--c-d1); --card-ink: var(--c-bg); }
.card[data-key="freelancing"] { --card-bg: var(--c-freelancing); }

.card__link {
  display: block; position: relative;
  aspect-ratio: 1;
  background: var(--card-bg, var(--c-freelancing));
  color: var(--card-ink, var(--c-ink));
  overflow: hidden;
  opacity: 0; transform: translateY(24px);
  transition: opacity 700ms var(--ease-out), transform 700ms var(--ease-out);
}
.card__link.is-in { opacity: 1; transform: none; }

.card__figure { margin: 0; position: absolute; inset: 0; }

.card__img {
  position: absolute; left: 12%; top: 20%; width: 76%; height: 72%;
  object-fit: contain;
  transition: transform 700ms var(--ease-snap);
}

.card__meta {
  position: absolute; left: 7%; top: 7%; right: 7%;
  display: flex; flex-direction: column; gap: 2px;
}
.card__meta > * {
  opacity: 0; transform: translateY(6px);
  transition: opacity 320ms var(--ease-snap), transform 420ms var(--ease-snap);
}
.card__brand { font-size: 10px; letter-spacing: 0.12em; text-transform: uppercase; }
.card__title { font-size: clamp(12px, 1vw, 15px); line-height: 1.25; }
.card__info  { font-size: 10px; letter-spacing: 0.06em; margin-top: 2px; }

.card__arrow {
  position: absolute; right: 7%; bottom: 6%;
  font-size: 12px; line-height: 1;
  opacity: 0; transform: translate(-4px, 4px);
  transition: opacity 320ms var(--ease-snap), transform 420ms var(--ease-snap);
}

@media (hover: hover) and (pointer: fine) {
  a.card__link { cursor: pointer; }
  .card__link:hover .card__img,
  .card__link:focus-visible .card__img { transform: translateY(2.5%) scale(1.035); }

  .card__link:hover .card__meta > *,
  .card__link:focus-visible .card__meta > * { opacity: 1; transform: none; }
  .card__link:hover .card__meta > :nth-child(2) { transition-delay: 40ms; }
  .card__link:hover .card__meta > :nth-child(3) { transition-delay: 80ms; }
  .card__link:hover .card__info,
  .card__link:focus-visible .card__info { opacity: 0.7; }

  .card__link:hover .card__arrow,
  .card__link:focus-visible .card__arrow { opacity: 1; transform: none; }

  a.card__link:active { transform: scale(0.985); transition-duration: 160ms; }
}

/* su touch le informazioni stanno sotto la card, sempre visibili */
.card__caption { display: none; margin: 6px 0 0; font-size: 11px; line-height: 1.35; color: var(--c-muted); }
@media (hover: none) { .card__caption { display: block; } }

/* ---------- footer ---------- */

.foot {
  display: flex; justify-content: space-between; align-items: baseline; gap: var(--gap);
  margin: 0 var(--gutter);
  padding: 28px 0 32px;
  border-top: 1px solid var(--c-line);
  font-size: 12px;
}
.foot p { margin: 0; color: var(--c-muted); }

/* ---------- animazioni ---------- */

@keyframes rise   { to { transform: none; } }
@keyframes fade   { to { opacity: 1; } }
@keyframes fadeup { to { opacity: 1; transform: none; } }

@media (prefers-reduced-motion: reduce) {
  .top, .hero__row > * { opacity: 1; transform: none; animation: none !important; }
  .name__word { transform: none; animation: none !important; }
  .card__link { transform: none; transition: opacity 300ms var(--ease-out); }
  .card__img, .card__meta > *, .card__arrow, .filter__btn, .u::after, .u .arrow { transition-duration: 1ms; }
}