/* Componentes · botones, marca, encabezado, pie, marco de capturas reales */

/* ── Botones (≥ 48 px; principal 52–56 px) ── */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: var(--s-2);
  min-height: 48px; padding: 0 var(--s-6);
  border: 1.5px solid transparent; border-radius: var(--r-pill);
  font-weight: 700; font-size: var(--fs-md); line-height: 1.1; text-decoration: none; white-space: nowrap;
  transition: background var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease), transform var(--t-fast) var(--ease);
}
.btn--primary { background: var(--c-primary-strong); color: var(--c-on-primary); }
.btn--primary:hover { background: var(--c-primary-hover); color: var(--c-on-primary); text-decoration: none; }
.btn--secondary { background: var(--c-surface); color: var(--c-ink); border-color: var(--c-aqua); }
.btn--secondary:hover { background: var(--c-surface-2); border-color: var(--c-aqua-strong); text-decoration: none; }
.btn--lg { min-height: 56px; padding: 0 var(--s-8); font-size: var(--fs-md); }
.btn--xl { min-height: 60px; padding: 0 var(--s-10); font-size: var(--fs-lg); }
@media (prefers-reduced-motion: no-preference) {
  .btn:hover { transform: translateY(-1px); }
}

/* ── Marca (sin logo propio todavía: solo texto) ── */
.brand { display: inline-flex; align-items: baseline; gap: 6px; color: var(--logo-ink); text-decoration: none; white-space: nowrap; }
.brand__name { font-size: 1.1875rem; font-weight: 700; letter-spacing: -0.01em; }
.brand__by { font-size: var(--fs-sm); font-weight: 600; color: var(--logo-accent); }
.brand:hover { text-decoration: none; }

/* ── Encabezado fijo discreto ── */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(243, 245, 247, .92);
  border-bottom: 1px solid transparent;
  backdrop-filter: saturate(1.2) blur(8px);
  -webkit-backdrop-filter: saturate(1.2) blur(8px);
}
.site-header.is-scrolled { border-bottom-color: var(--c-line); }
.site-header__inner { display: flex; align-items: center; gap: var(--s-8); min-height: var(--header-h); }
.site-nav { margin-left: auto; }
.site-nav__list { display: flex; gap: var(--s-1); }
.site-nav__link {
  display: inline-flex; align-items: center; min-height: 44px; padding: 0 var(--s-4);
  border-radius: var(--r-pill); color: var(--c-ink); font-weight: 600; text-decoration: none;
}
.site-nav__link:hover { background: var(--c-surface-2); text-decoration: none; }
.site-header__actions { display: flex; align-items: center; gap: var(--s-2); }
.site-header__cta { min-height: 44px; padding: 0 var(--s-5); }
.nav-toggle {
  display: none; place-items: center; width: 48px; height: 48px;
  border: 1.5px solid var(--c-line-strong); border-radius: var(--r-pill); background: var(--c-surface);
}
.nav-toggle .icon--close { display: none; }
.nav-toggle[aria-expanded="true"] .icon--open { display: none; }
.nav-toggle[aria-expanded="true"] .icon--close { display: block; }

/* ── Pie ── */
.site-footer { padding: var(--s-16) 0 var(--s-12); border-top: 1px solid var(--c-line); }
.site-footer__inner { display: grid; grid-template-columns: 1fr auto; gap: var(--s-8) var(--s-12); align-items: start; }
.brand--footer { margin-bottom: var(--s-2); }
.site-footer__tag { color: var(--c-ink-2); max-width: 44ch; }
.site-footer__nav { display: flex; flex-wrap: wrap; gap: var(--s-2) var(--s-6); }
.site-footer__nav a { display: inline-flex; min-height: 44px; align-items: center; color: var(--c-ink); font-weight: 600; }
.site-footer__copy { grid-column: 1 / -1; color: var(--c-ink-2); font-size: var(--fs-sm); }

/* ── Capturas reales (0C.2) ──
   Borde, radio y sombra ligera; sin marcos de hardware simulado. La imagen no
   se altera: el radio solo enmascara las esquinas. */
.capture { margin: 0; overflow: hidden; border-radius: var(--r-lg); border: 1px solid var(--c-line); background: var(--c-surface); box-shadow: var(--shadow-3); }
.capture img { display: block; width: 100%; height: auto; }
.capture--on-dark { border-color: rgba(255, 255, 255, .18); }
/* El diálogo de WhatsApp ya tiene esquinas redondeadas: la máscara coincide con ellas. */
.capture--dialog { border-radius: 18px; border: 0; box-shadow: var(--shadow-3); }