/* ============================================================
   METALMEC — Animazioni: keyframes, reveal on-scroll, motion
   Solo transform/opacity (GPU-friendly).
   ============================================================ */

/* Sheen metallico dei placeholder */
@keyframes sheen {
  0%   { transform: translateX(-55%); }
  55%  { transform: translateX(55%); }
  100% { transform: translateX(55%); }
}

/* Bagliore pulsante (variante saldatura) */
@keyframes glow-pulse {
  0%, 100% { opacity: 0.35; }
  50%      { opacity: 0.75; }
}

/* Rotazione carosello dischi 3D */
@keyframes disc-spin {
  from { transform: rotateY(0deg); }
  to   { transform: rotateY(-360deg); }
}

/* Cursore typewriter della hero */
@keyframes blink {
  0%, 100% { opacity: 1; }
  50%      { opacity: 0; }
}

/* --- Reveal on-scroll --- */
[data-reveal] {
  opacity: 0;
  transform: translateY(24px);
  transition:
    opacity var(--dur) var(--ease-out),
    transform var(--dur) var(--ease-out);
}

[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

[data-reveal-delay="1"] { transition-delay: 90ms; }
[data-reveal-delay="2"] { transition-delay: 180ms; }
[data-reveal-delay="3"] { transition-delay: 270ms; }

/* Sezione Qualità: "sale dal basso" in modo più marcato del reveal standard
   (blocco intero: testo + scudo salgono insieme quando entra in vista).
   In @media no-preference così il reset reduced-motion di [data-reveal] vince. */
@media (prefers-reduced-motion: no-preference) {
  .quality__grid[data-reveal] {
    transform: translateY(80px);
    transition-duration: 0.85s;
  }
  .quality__grid[data-reveal].is-visible {
    transform: translateY(0);
  }
}

/* --- Hero: lettere "OFFICINE MECCANICHE" in dissolvenza sparsa al load +
   reveal scroll-driven di "DAL 1962" e del blocco centrale (lead + CTA).
   Stati iniziali SOLO in no-preference → con reduced-motion resta tutto visibile.
   Il ritardo per-lettera è impostato inline da js/main.js (ordine sparso). --- */
@media (prefers-reduced-motion: no-preference) {
  .hero__ch {
    opacity: 0;
    filter: blur(14px);
    transform: translateY(10px);
    animation: heroChIn 0.6s cubic-bezier(0.2, 0.7, 0.2, 1) both;
  }

  .hero__mid,
  .hero__year1962 {
    opacity: 0;
    filter: blur(10px);
    transform: translateY(20px);
    transition:
      opacity 0.6s var(--ease-out),
      filter 0.6s var(--ease-out),
      transform 0.6s var(--ease-out);
  }

  .hero__mid.is-in,
  .hero__year1962.is-in {
    opacity: 1;
    filter: blur(0);
    transform: none;
  }
}

@keyframes heroChIn {
  to {
    opacity: 1;
    filter: blur(0);
    transform: none;
  }
}

/* --- Reduced motion: tutto visibile, niente animazioni --- */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  [data-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .media-placeholder::after {
    animation: none;
  }

  .disc-carousel__ring {
    animation: none;
    transform: rotateY(-8deg);
  }

  .dept-cards {
    --fan: 1 !important;
  }

  .type-cursor,
  .hero__scrubhint .dot {
    animation: none;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}