/* ============================================================
   T.R.E. — Talaria Roero Experience
   collab.css — Pagina Collaboratori locali
   ============================================================ */

/* ── Freccia indietro ─────────────────────────────────────── */
.back-bar {
  max-width: var(--content-wide);
  margin: 0 auto;
  padding: var(--space-8) var(--space-8) 0;
}
.back-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text-muted);
  text-decoration: none;
  padding: var(--space-2) var(--space-4) var(--space-2) var(--space-3);
  border-radius: var(--radius-full);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  transition: color var(--transition-interactive),
              border-color var(--transition-interactive),
              transform var(--transition-interactive),
              box-shadow var(--transition-interactive);
}
.back-link svg { transition: transform var(--transition-interactive); }
.back-link:hover {
  color: var(--color-primary);
  border-color: var(--color-primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}
.back-link:hover svg { transform: translateX(-4px); }

/* ── Griglia collaboratori ────────────────────────────────── */
.collab-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: var(--space-6);
  max-width: var(--content-wide);
  margin: 0 auto;
}

.collab-card {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-8) var(--space-6);
  overflow: hidden;
  transition: transform 320ms var(--ease-out),
              box-shadow 320ms var(--ease-out),
              border-color 320ms var(--ease-out);
}
/* sottile accento verde che cresce dal basso in hover */
.collab-card::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 380ms var(--ease-out);
}
.collab-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}
.collab-card:hover::after { transform: scaleX(1); }

/* Spazio logo — niente cornice: i loghi (spesso quadrati) respirano liberi.
   Altezza/larghezza in px assoluti: così loghi di proporzioni diverse vengono
   tutti normalizzati alla stessa dimensione e non invadono mai il testo. */
.collab-logo {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 104px;
  margin-bottom: var(--space-5);
}
.collab-logo img {
  max-height: 92px;   /* cap rigido in altezza per ogni logo */
  max-width: 72%;     /* cap in larghezza per i loghi orizzontali */
  width: auto;
  height: auto;
  object-fit: contain;
  /* leggera ombra morbida che stacca il logo dallo sfondo senza bordi */
  filter: drop-shadow(0 6px 14px rgba(42, 30, 20, 0.12));
  transition: transform 380ms var(--ease-out),
              filter 380ms var(--ease-out);
}
[data-theme="dark"] .collab-logo img {
  filter: drop-shadow(0 6px 16px rgba(0, 0, 0, 0.45));
}
.collab-card:hover .collab-logo img {
  transform: scale(1.09) translateY(-3px);
  filter: drop-shadow(0 12px 22px rgba(88, 144, 27, 0.28));
}

.collab-name {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-2);
  line-height: 1.2;
  transition: color 320ms var(--ease-out);
}
.collab-card:hover .collab-name { color: var(--color-primary); }
.collab-name small {
  display: block;
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 500;
  color: var(--color-text-faint);
  letter-spacing: 0.04em;
  margin-top: var(--space-1);
}
.collab-tag {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-primary);
  background: rgba(88, 144, 27, 0.1);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  margin-bottom: var(--space-4);
}
.collab-desc {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* ── Gruppo "famiglia Marcelin" ───────────────────────────── */
.collab-family {
  position: relative;
  max-width: var(--content-wide);
  margin: var(--space-16) auto 0;
  padding: clamp(var(--space-8), 4vw, var(--space-12));
  border-radius: var(--radius-xl);
  background:
    linear-gradient(var(--color-surface), var(--color-surface)) padding-box,
    linear-gradient(135deg, var(--color-primary), var(--color-accent)) border-box;
  border: 2px solid transparent;
  box-shadow: var(--shadow-md);
}
.collab-family-head {
  display: flex;
  align-items: flex-start;
  gap: var(--space-5);
  margin-bottom: var(--space-10);
}
.collab-family-mark {
  flex-shrink: 0;
  display: grid;
  place-items: center;
  width: 52px;
  height: 52px;
  border-radius: var(--radius-full);
  color: white;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  box-shadow: 0 6px 18px rgba(88, 144, 27, 0.35);
}
.collab-family-tag {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-2);
}
.collab-family-title {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-3);
}
.collab-family-lead {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.7;
  max-width: 640px;
}
.collab-family-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-5);
}
/* le card della famiglia restano distinte ma "appartenenti" */
.collab-card--family {
  background: var(--color-bg);
}

/* ── Nota finale ──────────────────────────────────────────── */
.collab-note {
  max-width: 640px;
  margin: var(--space-12) auto 0;
  text-align: center;
  font-size: var(--text-xs);
  font-style: italic;
  color: var(--color-text-faint);
}

/* ══ ANIMAZIONI DI CARICAMENTO PAGINA ══════════════════════ */
@keyframes treRiseIn {
  from { opacity: 0; transform: translateY(26px); }
  to   { opacity: 1; transform: none; }
}
@keyframes treDropIn {
  from { opacity: 0; transform: translateY(-14px); }
  to   { opacity: 1; transform: none; }
}
@keyframes treFadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}
@keyframes treHeroZoom {
  from { transform: scale(1.12); }
  to   { transform: scale(1); }
}

/* Header scende dall'alto al caricamento */
.page-header {
  animation: treDropIn 0.7s var(--ease-out) both;
}
/* Hero: lo sfondo si distende con un lento zoom (Ken Burns) al caricamento.
   L'overlay (z1), la wave (z2) e il contenuto (z3) restano sopra a questo ::before (z0). */
.page-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  background: url('image/foto-filari.jpg') center / cover no-repeat;
  animation: treHeroZoom 6s var(--ease-out) both;
  transform-origin: center;
}
/* I testi dell'hero entrano in sequenza */
.page-hero-eyebrow { animation: treRiseIn 0.8s var(--ease-out) 0.15s both; }
.page-hero-title   { animation: treRiseIn 0.9s var(--ease-out) 0.30s both; }
.page-hero-subtitle{ animation: treRiseIn 0.9s var(--ease-out) 0.45s both; }
/* Barra "torna indietro" sfuma dolcemente */
.back-bar { animation: treFadeIn 0.9s var(--ease-out) 0.6s both; }

/* ══ SEZIONE MANIFESTO — l'anima del territorio ════════════ */
.collab-manifesto {
  position: relative;
  padding: clamp(var(--space-24), 14vw, var(--space-32)) var(--space-8);
  background-image: url('image/foto_paesaggioTramonto.jpeg');
  background-size: cover;
  background-position: center;
  background-attachment: fixed;   /* parallax dolce allo scroll */
  text-align: center;
  overflow: hidden;
}
.collab-manifesto-overlay {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(120% 100% at 50% 0%, rgba(42, 30, 20, 0.35), transparent 60%),
    linear-gradient(180deg, rgba(42, 30, 20, 0.55), rgba(42, 30, 20, 0.7));
}
.collab-manifesto-inner {
  position: relative;
  max-width: 820px;
  margin: 0 auto;
}
.collab-manifesto-eyebrow {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-6);
}
.collab-manifesto-quote {
  font-family: var(--font-display);
  font-style: italic;
  font-size: var(--text-2xl);
  font-weight: 600;
  line-height: 1.35;
  color: #f7f2e8;
  text-shadow: 0 2px 30px rgba(0, 0, 0, 0.4);
  margin-bottom: var(--space-8);
}
.collab-manifesto-sign {
  display: inline-block;
  font-size: var(--text-sm);
  letter-spacing: 0.08em;
  color: rgba(247, 242, 232, 0.8);
}

/* ── Responsive ───────────────────────────────────────────── */
@media (max-width: 600px) {
  .collab-family-head { flex-direction: column; gap: var(--space-4); }
  .back-bar { padding-top: var(--space-6); }
  /* su mobile il parallax fixed scatta: lo disattivo */
  .collab-manifesto { background-attachment: scroll; }
}

/* ══ RISPETTO PER prefers-reduced-motion ═══════════════════ */
@media (prefers-reduced-motion: reduce) {
  .page-header,
  .page-hero::before,
  .page-hero-eyebrow,
  .page-hero-title,
  .page-hero-subtitle,
  .back-bar {
    animation: none;
  }
  .collab-card,
  .collab-logo img,
  .collab-name,
  .back-link,
  .back-link svg { transition: none; }
  .collab-manifesto { background-attachment: scroll; }
}