/* Floating WhatsApp button + footer social links. */
.wa-float {
  position: fixed; z-index: 60;
  left: max(18px, env(safe-area-inset-left)); bottom: max(18px, env(safe-area-inset-bottom));
  width: 60px; height: 60px; border-radius: 50%;
  display: grid; place-items: center;
  background: #25d366; color: #fff;
  box-shadow: 0 6px 18px rgba(0, 0, 0, .45), 0 0 0 0 rgba(37, 211, 102, .5);
  transition: filter 200ms ease, box-shadow 200ms ease;
}
.wa-float svg { width: 32px; height: 32px; fill: currentColor; }
.wa-float:hover, .wa-float:focus-visible { filter: brightness(1.08); box-shadow: 0 8px 24px rgba(0, 0, 0, .5), 0 0 18px rgba(37, 211, 102, .55); }
.wa-float:focus-visible { outline: 3px solid #ffd3a6; outline-offset: 4px; }
@media (prefers-reduced-motion: no-preference) {
  .wa-float::after {
    content: ''; position: absolute; inset: 0; border-radius: 50%; pointer-events: none;
    box-shadow: 0 0 0 0 rgba(37, 211, 102, .55);
    animation: wa-ring 7s ease-out 3s infinite;
  }
  @keyframes wa-ring {
    0% { box-shadow: 0 0 0 0 rgba(37, 211, 102, .5); }
    14% { box-shadow: 0 0 0 16px rgba(37, 211, 102, 0); }
    100% { box-shadow: 0 0 0 16px rgba(37, 211, 102, 0); }
  }
}
@media (max-width: 760px) {
  .wa-float { width: 54px; height: 54px; left: max(14px, env(safe-area-inset-left)); bottom: max(14px, env(safe-area-inset-bottom)); }
  .wa-float svg { width: 29px; height: 29px; }
}

.social-links { display: flex; gap: 14px; justify-content: center; align-items: center; }
.social-links[hidden] { display: none; }
.social-links a {
  width: 44px; height: 44px; border-radius: 50%; display: grid; place-items: center;
  border: 1px solid var(--line); color: var(--orange); background: linear-gradient(155deg, #202329, #12151a);
  transition: box-shadow 220ms ease, border-color 220ms ease, filter 220ms ease;
}
.social-links a:hover, .social-links a:focus-visible { border-color: var(--orange); box-shadow: 0 0 8px #ff913b80, 0 0 22px #ff520842; }
.social-links svg { width: 20px; height: 20px; fill: currentColor; }