/**
 * footer.css - Glass footer and floating WhatsApp control.
 * Requirements: 13.1, 13.2, 13.3
 */

.glass-footer {
  margin-top: var(--space-xl);
  padding: var(--space-lg) 0 var(--space-md);
}

.glass-footer__inner {
  width: min(1200px, calc(100% - 2rem));
  margin-inline: auto;
}

.glass-footer__brand {
  margin-bottom: 2rem;
}

.glass-footer__brand-logo {
  display: block;
  width: 88px;
  height: 88px;
  object-fit: contain;
  border-radius: 16px;
  background: #050509;
}

.glass-footer__tagline {
  color: var(--color-text-muted);
  margin-top: 0.4rem;
}

.glass-footer__grid {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: 1fr 1fr;
}

.glass-footer__col h3 {
  font-size: 0.75rem;
  letter-spacing: var(--letter-spacing-widest);
  text-transform: uppercase;
  margin-bottom: 0.8rem;
  color: var(--color-cyan);
}

.glass-footer__col a {
  display: block;
  color: var(--color-text-muted);
  min-height: 36px;
  padding: 0.2rem 0;
}

.glass-footer__col a:hover {
  color: var(--color-text);
}

.whatsapp-button {
  position: fixed;
  right: 1rem;
  bottom: 1rem;
  z-index: 900;
  width: 52px;
  height: 52px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #fff;
}

.whatsapp-button svg {
  width: 24px;
  height: 24px;
}

@media (min-width: 768px) {
  .glass-footer__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}