/* ==========================================================================
   MCM — layout.css
   Contenitori, sezioni della homepage, griglie, responsive.
   ========================================================================== */

/* --- Contenitori ------------------------------------------------------ */

.shell {
  width: var(--shell);
  margin-inline: auto;
}

.shell--narrow { max-width: 900px; }
.shell--wide   { width: min(1760px, 100% - 2 * var(--gutter)); }

.section {
  position: relative;
  padding-block: var(--section-y);
}

.section--alt  { background: var(--dark-2); }
.section--deep { background: var(--dark-3); }
.section--flush-top    { padding-top: 0; }
.section--flush-bottom { padding-bottom: 0; }

/* Filo dorato che separa le sezioni: sottile, mai una riga piena */
.section--ruled::before {
  content: "";
  position: absolute;
  top: 0;
  left: var(--gutter);
  width: clamp(60px, 8vw, 140px);
  height: 1px;
  background: var(--gold);
  opacity: 0.6;
}

/* --- Intestazione di sezione ------------------------------------------ */

.section-head {
  display: grid;
  gap: 1.75rem;
  max-width: 60ch;
  margin-bottom: clamp(3rem, 6vw, 5.5rem);
}

.section-head__title { margin: 0; }

.section-head--split {
  max-width: none;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  align-items: end;
  gap: clamp(2rem, 5vw, 5rem);
}

@media (max-width: 900px) {
  .section-head--split { grid-template-columns: 1fr; align-items: start; }
}

/* Link di chiusura di una sezione (freccia "vedi tutti", "scheda completa") */
.section-cta { margin-top: 2rem; }
.section-cta--wide { margin-top: clamp(2.5rem, 5vw, 4rem); }

/* --- Griglie generiche ------------------------------------------------- */

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(2rem, 5vw, 5rem);
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(1.5rem, 3vw, 2.5rem);
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: clamp(1.5rem, 3vw, 2.5rem);
}

@media (max-width: 1100px) {
  .grid-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 900px) {
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
}

@media (max-width: 600px) {
  .grid-4 { grid-template-columns: 1fr; }
}

/* --- Sezione 2 — Hero post-intro --------------------------------------- */

.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: flex-end;
  overflow: hidden;
  background: var(--dark);
}

.hero__media,
.hero__media video,
.hero__media img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Velatura dal basso: tiene leggibile il testo senza spegnere l immagine */
.hero__scrim {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to top,
    var(--dark) 0%,
    rgba(10, 10, 11, 0.72) 26%,
    rgba(10, 10, 11, 0.10) 62%,
    rgba(10, 10, 11, 0.45) 100%
  );
}

.hero__inner {
  position: relative;
  width: var(--shell);
  margin-inline: auto;
  padding-block: clamp(2.5rem, 5vw, 5rem);
}

.hero__eyebrow { margin-bottom: 1.5rem; }

/* La misura e tarata perche titolo, sottotitolo e barra specifiche stiano
   dentro una finestra da 700px: oltre, la barra usciva dallo schermo. */
.hero__title {
  font-size: clamp(2.5rem, 6.5vw, 6rem);
  line-height: 0.96;
  letter-spacing: -0.02em;
  margin-bottom: 1.25rem;
}

.hero__title span { display: block; }

.hero__subtitle {
  max-width: 42ch;
  color: var(--muted);
  font-size: 0.9rem;
  letter-spacing: 0.06em;
  margin-bottom: clamp(1.75rem, 3vw, 2.75rem);
}

/* Barra specifiche sotto il titolo */
.hero__specs {
  display: flex;
  flex-wrap: wrap;
  gap: clamp(1.5rem, 4vw, 3.5rem);
  padding-top: 1.75rem;
  border-top: 1px solid var(--hairline);
}

.hero__spec-value {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 2.6vw, 2.25rem);
  line-height: 1;
}

.hero__spec-value i {
  font-style: normal;
  color: var(--gold);
  font-size: 0.5em;
  margin-left: 0.25em;
}

/* Indicatore di scroll verticale a destra */
.hero__scroll-hint {
  position: absolute;
  right: var(--gutter);
  bottom: clamp(4rem, 9vw, 8rem);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.25rem;
  writing-mode: vertical-rl;
  font-size: 0.55rem;
  letter-spacing: 0.4em;
  text-transform: uppercase;
  color: var(--muted);
}

.hero__scroll-hint::after {
  content: "";
  width: 1px;
  height: 72px;
  background: linear-gradient(to bottom, var(--gold), transparent);
  animation: mcm-scroll-pulse 2.4s var(--ease-out) infinite;
}

@keyframes mcm-scroll-pulse {
  0%   { transform: scaleY(0); transform-origin: top;    opacity: 0; }
  35%  { transform: scaleY(1); transform-origin: top;    opacity: 1; }
  65%  { transform: scaleY(1); transform-origin: bottom; opacity: 1; }
  100% { transform: scaleY(0); transform-origin: bottom; opacity: 0; }
}

@media (max-width: 900px) {
  .hero__scroll-hint { display: none; }
  .hero__specs { gap: 1.75rem 2.5rem; }
}

/* --- Sezione 3 — Il progetto (testo + profilo laterale) ---------------- */

.project {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
  gap: clamp(2.5rem, 6vw, 6rem);
  align-items: center;
}

.project__text { max-width: 46ch; }
.project__text .mcm-title { margin-bottom: 2rem; }

/* Rapporto fisso: serve al parallax, che ha bisogno di un contenitore
   con altezza propria dentro cui far scorrere l immagine */
.project__figure {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 10;
}

/* Credit del designer in sovrimpressione, in basso a destra */
.project__credit {
  position: absolute;
  right: 1.5rem;
  bottom: 1.25rem;
  font-size: 0.55rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--ice);
  text-shadow: 0 1px 12px rgba(0, 0, 0, 0.8);
}

.project__credit b { color: var(--gold); font-weight: 500; }

@media (max-width: 900px) {
  .project { grid-template-columns: 1fr; }
}

/* --- Sezione 5 — Specifiche tecniche ----------------------------------- */

.specs {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  gap: clamp(2.5rem, 6vw, 5rem);
  align-items: start;
}

/* I bordi delle celle si sovrappongono via margin negativo:
   niente doppia linea fra una cella e la successiva */
.specs__grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.specs__cell {
  gap: 0.9rem;
  padding: clamp(1.75rem, 3vw, 2.75rem) clamp(1.25rem, 2vw, 2rem);
  border: 1px solid var(--hairline-gold);
  margin: 0 -1px -1px 0;
  transition: background-color 0.5s var(--ease-out);
}

.specs__cell:hover { background: rgba(176, 133, 64, 0.06); }

.specs__value {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(2.25rem, 4.5vw, 3.5rem);
  line-height: 1;
}

.specs__value i {
  font-style: normal;
  color: var(--gold);
  font-size: 0.42em;
  margin-left: 0.3em;
  letter-spacing: 0.04em;
}

.specs__note {
  margin-top: 2rem;
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
}

.specs__figure { position: sticky; top: calc(var(--nav-h) + 3rem); }

/* I piani tecnici sono disegni su fondo bianco: il riquadro chiaro li rispetta */
.specs__figure img {
  width: 100%;
  background: var(--ice);
  padding: clamp(1rem, 2vw, 2rem);
}

@media (max-width: 1100px) {
  .specs { grid-template-columns: 1fr; }
  .specs__figure { position: static; }
}

@media (max-width: 600px) {
  .specs__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

/* --- Sezione 7 — Materiali --------------------------------------------- */

.materials {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(2.5rem, 6vw, 5rem);
  align-items: center;
}

.materials__list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  margin-top: 2.5rem;
  background: var(--hairline);
  border: 1px solid var(--hairline);
}

.materials__item {
  background: var(--dark-2);
  padding: 1.5rem 1.25rem;
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
  transition: color 0.4s var(--ease-out), background-color 0.4s var(--ease-out);
}

.materials__item:hover { color: var(--ice); background: var(--dark-3); }

.section--alt .materials__item { background: var(--dark); }
.section--alt .materials__item:hover { background: var(--dark-3); }

@media (max-width: 900px) {
  .materials { grid-template-columns: 1fr; }
  .materials__list { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

/* --- Sezione 8 — Configurazioni ---------------------------------------- */

/* I piani comparativi sono disegni al tratto su fondo bianco */
.config-figure {
  margin-top: clamp(3rem, 6vw, 5rem);
  background: var(--ice);
  padding: clamp(1.5rem, 4vw, 4rem);
}

.config-figure img { width: 100%; height: auto; margin-inline: auto; }

/* --- Sezione 9 — Heritage ---------------------------------------------- */

/* La striscia sfonda il contenitore di un gutter per lato: e un nastro, non
   una griglia. Niente 100vw: quella misura include la barra di scorrimento e
   faceva sbordare l intera pagina di una quindicina di pixel. */
.heritage__strip {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(280px, 1fr);
  gap: 1.25rem;
  margin-top: clamp(3rem, 6vw, 5rem);
  margin-inline: calc(-1 * var(--gutter));
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  padding-bottom: 1rem;
  padding-inline: var(--gutter);
  scrollbar-width: thin;
  scrollbar-color: var(--gold) transparent;
}

.heritage__strip::-webkit-scrollbar { height: 2px; }
.heritage__strip::-webkit-scrollbar-thumb { background: var(--gold); }

/* Claim grande sulla storia, sul modello del blocco Heritage di riferimento */
.heritage__claim {
  max-width: 34ch;
  margin-top: clamp(2.5rem, 5vw, 4rem);
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3vw, 2.5rem);
  font-style: italic;
  line-height: 1.3;
  color: var(--ice);
}

.heritage__shot {
  position: relative;
  scroll-snap-align: start;
  overflow: hidden;
  aspect-ratio: 4 / 3;
}

.heritage__shot img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(1) contrast(1.05);
  transition: filter 1.2s var(--ease-out), transform 6s ease;
}

.heritage__shot:hover img { filter: grayscale(0); transform: scale(1.03); }

.heritage__caption {
  position: absolute;
  left: 1rem;
  bottom: 0.85rem;
  font-size: 0.55rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  text-shadow: 0 1px 10px rgba(0, 0, 0, 0.9);
}

/* --- Sezione 10 — CTA finale ------------------------------------------- */

.cta-final {
  position: relative;
  overflow: hidden;
  text-align: center;
  padding-block: clamp(7rem, 15vw, 14rem);
}

.cta-final__bg {
  position: absolute;
  inset: 0;
  object-fit: cover;
  width: 100%;
  height: 100%;
  opacity: 0.18;
  filter: blur(6px) saturate(0.7);
  transform: scale(1.06); /* copre i bordi sfumati dal blur */
}

.cta-final__inner {
  position: relative;
  width: min(760px, 100% - 2 * var(--gutter));
  margin-inline: auto;
}

.cta-final .mcm-title { margin-block: 1.75rem 1.5rem; }

.cta-final__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
  margin-top: 3rem;
}

/* --- Intestazione di pagina interna ------------------------------------ */

.page-hero {
  position: relative;
  display: flex;
  align-items: flex-end;
  min-height: 62svh;
  padding-top: var(--nav-h);
  overflow: hidden;
}

.page-hero--plain { min-height: auto; padding-block: calc(var(--nav-h) + 6rem) 0; }

.page-hero__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.5;
}

/* Hero di un modello storico: al posto della foto c'e la scheda tecnica,
   che va letta per intero e non ritagliata */
.page-hero--doc .page-hero__bg {
  object-fit: contain;
  object-position: center top;
  opacity: 0.35;
}

/* La scheda originale in fondo alla pagina modello */
.doc-sheet {
  max-width: 900px;
  margin-inline: auto;
  border: 1px solid var(--hairline);
}

.doc-sheet img { width: 100%; height: auto; }

.page-hero__scrim {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, var(--dark) 4%, rgba(10, 10, 11, 0.35) 70%, rgba(10, 10, 11, 0.6) 100%);
}

.page-hero__inner {
  position: relative;
  width: var(--shell);
  margin-inline: auto;
  padding-bottom: clamp(3rem, 6vw, 5rem);
}

.page-hero__title { margin-top: 1.5rem; }

/* --- Footer ------------------------------------------------------------ */

.site-footer {
  background: var(--dark-2);
  border-top: 1px solid var(--hairline);
  padding-top: clamp(4rem, 8vw, 7rem);
}

.footer__top {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) repeat(3, minmax(0, 1fr));
  gap: clamp(2.5rem, 5vw, 4rem);
  padding-bottom: clamp(3.5rem, 7vw, 6rem);
}

.footer__brand img {
  width: clamp(150px, 16vw, 210px);
  height: auto;
  margin-bottom: 1.75rem;
}

.footer__socials {
  display: flex;
  gap: 1rem;
  margin-top: 1.75rem;
}

.footer__social {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border: 1px solid var(--hairline);
  color: var(--muted);
  transition: color 0.4s var(--ease-out), border-color 0.4s var(--ease-out);
}

.footer__social:hover { color: var(--gold); border-color: var(--hairline-gold); }
.footer__social svg { width: 16px; height: 16px; fill: currentColor; }

.footer__col-title {
  font-size: 0.6rem;
  letter-spacing: 0.36em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 1.75rem;
}

.footer__list li + li { margin-top: 0.85rem; }

.footer__list a {
  font-size: 0.85rem;
  color: var(--muted);
  transition: color 0.35s var(--ease-out);
}

.footer__list a:hover { color: var(--ice); }

.footer__meta {
  margin-top: 2rem;
  font-size: 0.75rem;
  line-height: 1.9;
  color: var(--muted);
}

.footer__bottom {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 2rem;
  justify-content: space-between;
  align-items: center;
  padding-block: 2rem;
  border-top: 1px solid var(--hairline);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.footer__legal { display: flex; flex-wrap: wrap; gap: 1.5rem; }
.footer__legal a:hover { color: var(--gold); }

@media (max-width: 1100px) {
  .footer__top { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 600px) {
  .footer__top { grid-template-columns: 1fr; }
}