.error-card {
  max-width: 680px;
  margin: 32px auto;
  padding: clamp(24px, 5vw, 56px);
  text-align: center;
  background: var(--color-surface, #fff);
  border: 1px solid var(--color-border, #eee);
  border-radius: 12px;
}

.error-card .error-code {
  font-family: Poppins, Helvetica, sans-serif;
  font-size: clamp(72px, 18vw, 140px);
  font-weight: 600;
  line-height: 1;
  color: var(--color-accent, #0099e5);
  margin: 0 0 24px;
}

.error-card p {
  overflow-wrap: anywhere;
}

.error-actions {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 12px;
  margin: 24px 0;
}

.error-actions .portfolio-button {
  margin: 0;
  white-space: normal;
}

.error-help {
  margin-top: 28px;
}

.error-card .error-help a {
  color: var(--color-accessible-link, #0076b1);
}

[data-theme="dark"] {
  --color-accessible-link: #58a6ff;
}

.error-card a:focus-visible {
  outline: 2px solid var(--color-accent, #0099e5);
  outline-offset: 4px;
}

.no-js .route-error {
  display: none;
}

@media (prefers-color-scheme: dark) {
  html:not([data-theme]) {
    --color-bg: #0d1117;
    --color-surface: #161b22;
    --color-border: #30363d;
    --color-text-primary: #e6edf3;
    --color-text-secondary: #c9d1d9;
    --color-accent: #58a6ff;
    --color-accessible-link: #58a6ff;
  }
}

@media (max-width: 480px) {
  .error-actions {
    flex-direction: column;
  }

  .error-actions .portfolio-button {
    width: 100%;
  }

  .error-card {
    margin: 20px auto;
  }
}