/* ===== FOOTER ===== */
.op-footer {
  background: #1E293B;
  color: #CBD5E1;
  padding: 3rem 0 0;
}
.op-footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.5fr;
  gap: 2.5rem;
  padding-bottom: 2.5rem;
}

/* Logo in footer */
.op-footer-logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1rem;
}
.op-footer-logo .op-logo-text { color: #fff; font-size: 1.1rem; }
.op-footer-logo .op-logo-badge { background: var(--op-primary); }
.op-footer-about { font-size: var(--op-text-sm); line-height: 1.7; color: #94A3B8; }

/* Titles */
.op-footer-title {
  color: #fff;
  font-size: var(--op-text-base);
  font-weight: 600;
  margin-bottom: 1.25rem;
}

/* Links */
.op-footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
}
.op-footer-links li { margin-bottom: 0.625rem; }
.op-footer-links a {
  color: #94A3B8;
  font-size: var(--op-text-sm);
  text-decoration: none;
  transition: color var(--op-transition);
}
.op-footer-links a:hover { color: #fff; }

/* Contact */
.op-footer-contact {
  list-style: none;
  padding: 0;
  margin: 0;
}
.op-footer-contact li {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  margin-bottom: 0.875rem;
  font-size: var(--op-text-sm);
}
.op-footer-contact svg { opacity: 0.6; flex-shrink: 0; stroke: #94A3B8; }
.op-footer-contact a { color: #94A3B8; text-decoration: none; }
.op-footer-contact a:hover { color: #fff; }

/* Social Links */
.op-footer-social {
  display: flex;
  gap: 0.75rem;
  margin-top: 1.25rem;
}
.op-footer-social a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: #334155;
  color: #94A3B8;
  transition: all var(--op-transition);
}
.op-footer-social a:hover {
  background: var(--op-primary);
  color: #fff;
}
.op-footer-social svg { width: 18px; height: 18px; }

/* Newsletter message */
.op-newsletter-msg {
  margin-top: 0.5rem;
  font-size: var(--op-text-xs);
  padding: 0.375rem 0.75rem;
  border-radius: var(--op-radius);
}
.op-newsletter-msg--success { background: #D1FAE5; color: #059669; }
.op-newsletter-msg--error { background: #FEE2E2; color: #DC2626; }

/* Newsletter */
.op-footer-newsletter-text { font-size: var(--op-text-sm); color: #94A3B8; margin-bottom: 1rem; }
.op-newsletter-form {
  display: flex;
  gap: 0.5rem;
}
.op-newsletter-form input {
  flex: 1;
  padding: 0.625rem 1rem;
  border: 1px solid #334155;
  border-radius: var(--op-radius);
  background: #0F172A;
  color: #fff;
  font-size: var(--op-text-sm);
  font-family: var(--op-font);
}
.op-newsletter-form input::placeholder { color: #64748B; }
.op-newsletter-form input:focus { outline: none; border-color: var(--op-primary); }
.op-newsletter-form .op-btn { white-space: nowrap; }

/* Bottom Bar */
.op-footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.25rem 0;
  border-top: 1px solid #334155;
  font-size: var(--op-text-xs);
  color: #64748B;
}
.op-footer-policies { display: flex; gap: 1.5rem; }
.op-footer-policies a { color: #64748B; text-decoration: none; }
.op-footer-policies a:hover { color: #94A3B8; }

/* ===== WHATSAPP FAB ===== */
.op-whatsapp-fab {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 56px;
  height: 56px;
  background: #25D366;
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 12px rgba(37, 211, 102, 0.4);
  z-index: 999;
  transition: transform var(--op-transition), box-shadow var(--op-transition);
}
.op-whatsapp-fab:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 20px rgba(37, 211, 102, 0.5);
  color: #fff;
}

/* ===== BACK TO TOP ===== */
.op-back-to-top {
  position: fixed;
  bottom: 90px;
  right: 24px;
  width: 44px;
  height: 44px;
  background: var(--op-primary);
  color: #fff;
  border: none;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--op-shadow-md);
  cursor: pointer;
  z-index: 998;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: all 0.3s ease;
}
.op-back-to-top.op-visible,
.op-back-to-top.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.op-back-to-top:hover {
  background: var(--op-primary-dark);
  transform: translateY(-2px);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  .op-footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .op-footer-grid { grid-template-columns: 1fr; gap: 2rem; }
  .op-footer-bottom { flex-direction: column; gap: 0.75rem; text-align: center; }
  .op-newsletter-form { flex-direction: column; }
}