.error-page {
  min-height: 680px;
  padding: 75px 0 120px;
}

.error-code {
  display: flex;
  align-items: center;
  color: transparent;
  font-size: clamp(7rem, 20vw, 14rem);
  font-weight: 800;
  line-height: 0.9;
  letter-spacing: -0.08em;
  -webkit-text-stroke: 1px #334a5c;
}

.error-code i {
  width: clamp(70px, 12vw, 145px);
  aspect-ratio: 1;
  margin: 0 0.05em;
  border: 1px solid var(--accent);
  border-radius: 50%;
  background:
    radial-gradient(circle, rgba(77, 243, 202, 0.2) 0 2px, transparent 3px),
    repeating-radial-gradient(circle, transparent 0 16px, rgba(77, 243, 202, 0.09) 17px 18px);
  box-shadow: 0 0 45px rgba(77, 243, 202, 0.1), inset 0 0 30px rgba(77, 243, 202, 0.08);
}

.error-content {
  max-width: 720px;
  margin-top: -8px;
}

.error-content h1 {
  margin: 12px 0 14px;
  font-size: clamp(2rem, 5vw, 3.5rem);
  line-height: 1.3;
  letter-spacing: -0.045em;
}

.error-content > p:last-of-type {
  color: var(--muted);
}

.error-actions {
  display: flex;
  align-items: center;
  gap: 28px;
  margin-top: 30px;
}

.error-search-link {
  color: #b9c6cf;
  font-size: 0.82rem;
  text-decoration: none;
}

.error-search-link:hover {
  color: var(--accent);
}

.error-navigation {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  margin-top: 75px;
  border: 1px solid var(--line);
  background: var(--line);
}

.error-navigation a {
  display: grid;
  padding: 22px;
  background: var(--panel);
  color: var(--ink);
  text-decoration: none;
  transition: background 0.2s;
}

.error-navigation a:hover {
  background: #172432;
}

.error-navigation span,
.error-navigation small {
  color: #8498a7;
  font: 600 0.62rem "JetBrains Mono", monospace;
}

.error-navigation strong {
  margin: 12px 0 3px;
  color: var(--accent);
  font-size: 1rem;
}

@media (max-width: 620px) {
  .error-page {
    min-height: auto;
    padding: 55px 0 85px;
  }

  .error-code {
    justify-content: center;
  }

  .error-actions {
    align-items: flex-start;
    flex-direction: column;
    gap: 18px;
  }

  .error-navigation {
    grid-template-columns: 1fr;
    margin-top: 55px;
  }
}