@layer components {
  /* ==========================================================================
   FOOTER · COLUMNAS — pie corporativo oscuro en 3 columnas.
   Portado 1:1 del <style> de footers/Columnas.astro. Namespaced bajo .footer--columnas.
   Incluye el modificador .contact--stack (exclusivo de este pie).
   Carga condicional desde inc/enqueue.php cuando web.json → "footer":"columnas".
   ========================================================================== */
  .footer--columnas {
    background: var(--color-neutral);
    color: var(--color-neutral-content);
    --c: var(--color-neutral-content);
    text-align: left;
    font-size: 0.9rem;
  }
  .footer--columnas .footer__inner {
    margin: 0 auto;
  }
  .footer--columnas .footer__main {
    padding: min(var(--padding-v), 4rem) var(--padding-h);
  }
  .footer--columnas .footer__main .footer__inner {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2.5rem 2rem;
  }
  .footer--columnas .footer__col > *:last-child {
    margin-bottom: 0;
  }
  .footer--columnas .footer__title {
    margin: 0 0 0.75rem;
  }
  .footer--columnas .footer__blurb {
    margin: 0 0 1rem;
    max-width: 38ch;
    opacity: 0.8;
    line-height: 1.6;
  }
  .footer--columnas .footer__heading {
    margin: 0 0 0.5rem;
    font-size: 0.9rem;
    font-weight: var(--bold1);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    opacity: 0.6;
  }
  .footer--columnas .footer__links {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    column-gap: 1rem;
    row-gap: 0.5rem;
  }
  .footer--columnas .footer__links a {
    color: currentColor;
    text-decoration: none;
    opacity: 0.85;
    transition: opacity 0.18s ease;
  }
  .footer--columnas .footer__links a:hover {
    opacity: 1;
    text-decoration: underline;
  }
  .footer--columnas .footer__address {
    display: flex;
    align-items: start;
    gap: 0.5rem;
    margin: 0 0 0.75rem;
    opacity: 0.85;
    line-height: 1.5;
  }
  .footer--columnas .footer__address i {
    margin-top: 0.2em;
  }
  @media (min-width: 640px) {
    .footer--columnas .footer__main .footer__inner {
      grid-template-columns: repeat(2, 1fr);
    }
  }
  @media (min-width: 1024px) {
    .footer--columnas .footer__main .footer__inner {
      grid-template-columns: 1.4fr 1.4fr 1fr;
      gap: 3rem;
    }
    .footer--columnas .footer__links {
      grid-template-columns: 1fr 1fr;
    }
  }

  /* Modificador de Contacto en columna (exclusivo de este pie) */
  .footer--columnas .contact--stack {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.75rem;
  }
  .footer--columnas .contact--stack.contact--bg {
    gap: 0.25rem;
  }
}