/* ── Sobre nosotros (rebranding R4) ───────────────────────────────────────
   Página de confianza: historia, fotos reales y cómo se hace cada beat. Bloques cortos y
   escaneables (pasos numerados + acordeón), fondos sólidos, azul de marca solo como acento. */

.sn-head { max-width: 820px; margin-bottom: var(--space-8); }
.sn-head h1 {
  font-family: var(--font-display);
  font-size: clamp(1.9rem, 1.1rem + 3.6vw, 3.25rem);
  line-height: 1.08; letter-spacing: -0.02em; text-transform: uppercase;
  margin: 0 0 var(--space-4); text-wrap: balance;
}
.sn-lead { font-size: var(--fs-lg); color: var(--color-text-muted); margin: 0; max-width: 640px; line-height: 1.6; }
.sn-lead strong { color: var(--color-text); }

/* Historia (+ fotos reales si existen). */
.sn-historia {
  display: grid; gap: var(--space-6); grid-template-columns: 1fr;
  padding: var(--space-6);
  margin-bottom: var(--space-10);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-brand);
  border-radius: var(--radius-lg);
}
.sn-historia h2 { margin: 0 0 var(--space-3); }
.sn-historia p { margin: 0 0 var(--space-3); line-height: 1.65; max-width: 640px; }
.sn-historia p:last-child { margin-bottom: 0; }
@media (min-width: 900px) {
  .sn-historia--con-fotos { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); align-items: center; }
}

.sn-fotos { display: grid; gap: var(--space-3); grid-template-columns: repeat(2, minmax(0, 1fr)); }
.sn-fotos--1 { grid-template-columns: 1fr; }
.sn-fotos--3 .sn-foto:first-child { grid-column: 1 / -1; }
.sn-foto { margin: 0; overflow: hidden; border-radius: var(--radius-md); border: 1px solid var(--color-border); background: var(--color-surface-2); }
.sn-foto img { width: 100%; height: 100%; aspect-ratio: 4 / 3; object-fit: cover; }
.sn-fotos--1 .sn-foto img, .sn-fotos--3 .sn-foto:first-child img { aspect-ratio: 16 / 9; }

/* Secciones. */
.sn-seccion { margin-bottom: var(--space-10); }
.sn-seccion > h2 { font-size: var(--fs-2xl); margin: 0 0 var(--space-5); }

/* Pasos numerados. */
.sn-pasos {
  list-style: none; margin: 0; padding: 0;
  display: grid; gap: var(--space-4); grid-template-columns: 1fr;
}
@media (min-width: 640px)  { .sn-pasos { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (min-width: 1100px) { .sn-pasos { grid-template-columns: repeat(4, minmax(0, 1fr)); } }
.sn-paso {
  padding: var(--space-5);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: transform var(--transition-fast), border-color var(--transition-fast);
}
.sn-paso:hover { transform: translateY(-3px); border-color: var(--color-primary); }
.sn-paso-n {
  display: block; margin-bottom: var(--space-3);
  font-family: var(--font-display); font-weight: 700; font-size: var(--fs-2xl); line-height: 1;
  color: var(--color-primary);
}
.sn-paso h3 { font-size: var(--fs-base); margin: 0 0 var(--space-2); text-wrap: balance; }
.sn-paso p { margin: 0; color: var(--color-text-muted); line-height: 1.55; }

/* Acordeón de valores (<details> nativo). */
.sn-valores { display: grid; gap: var(--space-3); max-width: 820px; }
.sn-valor {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}
.sn-valor[open] { border-color: var(--color-primary); }
.sn-valor summary {
  display: flex; align-items: center; justify-content: space-between; gap: var(--space-3);
  padding: var(--space-4) var(--space-5);
  cursor: pointer; list-style: none; font-weight: 700;
}
.sn-valor summary::-webkit-details-marker { display: none; }
.sn-valor summary::after {
  content: "+"; flex-shrink: 0;
  font-family: var(--font-display); font-size: var(--fs-xl); line-height: 1;
  color: var(--color-primary);
  transition: transform var(--transition-fast);
}
.sn-valor[open] summary::after { transform: rotate(45deg); }
.sn-valor p { margin: 0; padding: 0 var(--space-5) var(--space-4); color: var(--color-text-muted); line-height: 1.6; }

@media (prefers-reduced-motion: reduce) {
  .sn-paso, .sn-valor summary::after { transition: none; }
  .sn-paso:hover { transform: none; }
}