/* Correções de navegação, foco e preferências de movimento. */
.logo img,
.intro-logo img,
.profile-avatar img,
.contact-logo {
  height: auto;
  object-fit: contain;
}

.skip-link {
  position: fixed;
  z-index: 10000;
  top: 10px;
  left: 10px;
  padding: 11px 15px;
  color: #fff;
  background: var(--navy);
  transform: translateY(-160%);
  transition: transform .2s ease;
}
.skip-link:focus { transform: translateY(0); }

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.menu-button {
  display: none;
  width: 44px;
  height: 44px;
  padding: 10px;
  border: 0;
  background: transparent;
  cursor: pointer;
}
.menu-button > span:not(.sr-only) {
  display: block;
  height: 2px;
  margin: 5px 0;
  background: var(--navy);
  transition: transform .2s ease, opacity .2s ease;
}
.menu-button[aria-expanded="true"] > span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-button[aria-expanded="true"] > span:nth-child(2) { opacity: 0; }
.menu-button[aria-expanded="true"] > span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
[tabindex]:focus-visible {
  outline: 3px solid var(--blue);
  outline-offset: 3px;
}

#produtos, #avibra, #contato, #disponibilidade, #distribuidores { scroll-margin-top: 28px; }

@media (max-width: 650px) {
  .menu-button { display: block; margin-left: auto; }
  .header nav {
    position: absolute;
    z-index: 20;
    top: 100%;
    left: 0;
    right: 0;
    display: none;
    margin: 0;
    padding: 12px 22px 22px;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: #fff;
    border-top: 1px solid var(--line);
    box-shadow: 0 16px 28px rgba(6, 43, 69, .12);
  }
  .header nav.open { display: flex; }
  .header nav a { padding: 13px 2px; border-bottom: 1px solid var(--line); }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    scroll-behavior: auto !important;
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }
}