/* ==========================================================================
   RESPONSIVE.CSS
   Mobile first. Breakpoints: 320 / 375 / 414 / 768 / 1024 / 1440 / 4K
   ========================================================================== */

/* ---------- Base móvil (320px+) ---------- */
.main-nav, .header-actions .btn-primary { display: none; }

.nav-toggle { display: inline-flex; }

.hero-inner { padding-inline: var(--container-pad); }

.about-grid,
.corp-grid,
.modalities-grid,
.footer-grid {
  grid-template-columns: 1fr;
}

.timeline {
  grid-template-columns: 1fr;
  gap: var(--space-lg);
}
.timeline::before { display: none; }

.corp-section { margin-inline: var(--space-sm); }
.cta-final { margin-inline: var(--space-sm); }

.about-media-ring { display: none; }

.about-facts { grid-template-columns: 1fr; }

/* Menú móvil desplegable */
.main-nav {
  position: fixed;
  inset: 0;
  z-index: calc(var(--z-header) - 1);
  background: var(--color-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-12px);
  transition: opacity var(--dur-base) var(--ease-soft),
              visibility var(--dur-base) var(--ease-soft),
              transform var(--dur-base) var(--ease-soft);
}

.main-nav.is-open {
  display: flex;
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.main-nav__list {
  flex-direction: column;
  gap: var(--space-lg);
  text-align: center;
}

.main-nav__link{

    font-family:var(--font-body);

    font-style:normal;

    font-size:1.15rem;

    font-weight:500;

    letter-spacing:0;

    text-transform:none;
}

.main-nav .btn-primary {
  display: inline-flex;
  margin-top: var(--space-md);
}

.nav-toggle.is-active span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.nav-toggle.is-active span:nth-child(2) { opacity: 0; }
.nav-toggle.is-active span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* ---------- 375px ---------- */
@media (min-width: 375px) {
  .hero-title { max-width: 15ch; }
}

/* ---------- 414px ---------- */
@media (min-width: 414px) {
  .services-grid { gap: var(--space-md); }
}

/* ---------- 768px (tablet) ---------- */
@media (min-width: 768px) {
  .about-facts { grid-template-columns: repeat(2, 1fr); }
  .modalities-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .timeline { grid-template-columns: repeat(2, 1fr); }
  .corp-grid { grid-template-columns: 1fr; }
}

/* ---------- 1024px (desktop) ---------- */
@media (min-width: 1024px) {
  .nav-toggle { display: none; }
  .main-nav {
    position: static;
    inset: auto;
    background: none;
    opacity: 1;
    visibility: visible;
    transform: none;
    display: block;
  }
  .main-nav__list { flex-direction: row; }
  .main-nav .btn-primary { display: none; }
  .header-actions .btn-primary { display: inline-flex; }

  .about-grid { grid-template-columns: minmax(0,0.85fr) minmax(0,1.15fr); }
  .about-media-ring { display: block; }

  .corp-grid { grid-template-columns: 1fr 1fr; }

  .timeline { grid-template-columns: repeat(4, 1fr); }
  .timeline::before { display: block; }

  .footer-grid { grid-template-columns: 1.3fr 1fr 1fr; }

  .hero-inner { grid-template-columns: minmax(0, 2fr) minmax(0, 1fr); align-items: end; }
}

/* ---------- 1440px (desktop grande) ---------- */
@media (min-width: 1440px) {
  :root { --container-pad: 3rem; }
  .service-card { padding: var(--space-xl) var(--space-lg); }
}

/* ---------- 4K / ultra-wide (2560px+) ---------- */
@media (min-width: 2560px) {
  html { font-size: 20px; }
  .container { max-width: 1720px; }
}

/* ---------- Ajustes de impresión ---------- */
@media print {
  .site-header, .scroll-cue, .cursor-dot, .cursor-ring, .page-loader { display: none !important; }
}