.skip-link {
  position: fixed;
  left: 18px;
  top: 12px;
  z-index: 9999;
  padding: 10px 14px;
  border-radius: 8px;
  background: #102A5C;
  color: #FFFFFF;
  font-weight: 700;
  transform: translateY(-160%);
  transition: transform .18s ease;
}
.skip-link:focus { transform: translateY(0); }

:focus-visible {
  outline: 3px solid #177C8C;
  outline-offset: 3px;
}

.site-nav__menu .current-menu-item > a,
.site-nav__menu a[aria-current="page"] {
  color: #177C8C;
}
.site-nav__menu .current-menu-item > a::after,
.site-nav__menu a[aria-current="page"]::after {
  right: 0;
}

.error-404 {
  min-height: 66vh;
  display: grid;
  place-items: center;
  padding: 90px 0;
  background: linear-gradient(135deg, #FFFFFF 0%, #F7F9FC 65%, #EEF5F6 100%);
}
.error-404__inner {
  max-width: 760px;
  text-align: center;
}
.error-404__code {
  display: inline-block;
  margin-bottom: 12px;
  color: #177C8C;
  font-weight: 800;
  letter-spacing: .18em;
  font-size: .8rem;
}
.error-404 h1 {
  margin: 0;
  color: #102A5C;
  font-family: 'Playfair Display', Georgia, serif;
  font-size: clamp(2.7rem, 6vw, 5rem);
  line-height: 1.04;
}
.error-404 p {
  max-width: 620px;
  margin: 24px auto 0;
  color: #5F6670;
  font-size: 1.05rem;
  line-height: 1.75;
}
.error-404__actions {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 30px;
}

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

@media (max-width: 900px) {
  .menu-toggle {
    min-width: 62px;
    min-height: 42px;
    padding: 8px 10px !important;
    border-radius: 999px !important;
  }
  .site-nav__menu .current-menu-item > a,
  .site-nav__menu a[aria-current="page"] {
    font-weight: 800;
  }
}

@media (max-width: 600px) {
  .error-404 { padding: 68px 0; }
  .error-404__actions { flex-direction: column; }
  .error-404__actions .button { width: 100%; }
}