.error-page {
  min-height: 100vh;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
}

.error-page main {
  flex: 1;
  display: grid;
}

.error-hero {
  display: grid;
  align-items: center;
}

.error-layout {
  width: 100%;
  max-width: var(--max);
  margin: auto;
  padding: 88px 28px;
  display: grid;
  grid-template-columns: 1.15fr .85fr;
  gap: 80px;
  align-items: center;
}

.error-hero h1 {
  font-size: clamp(2.6rem, 5vw, 4.8rem);
  max-width: 650px;
}

.error-copy .hero-lede {
  max-width: 520px;
  font-size: 1.15rem;
}

.error-card {
  padding: 36px;
  background: #fff;
  border: 1px solid var(--line);
  border-top: 4px solid var(--green);
  box-shadow: var(--shadow);
}

.error-card-label {
  display: block;
  color: var(--green);
  font-size: .72rem;
  font-weight: 800;
  letter-spacing: .13em;
  text-transform: uppercase;
}

.error-number {
  display: flex;
  align-items: baseline;
  gap: 8px;
  margin: 28px 0;
  color: var(--forest);
  font: 800 clamp(6rem, 11vw, 9.5rem)/1 Manrope, sans-serif;
  letter-spacing: -.07em;
}

.error-dot {
  flex: 0 0 16px;
  width: 16px;
  height: 16px;
  background: var(--lime);
  border-radius: 50%;
}

.error-card-caption {
  display: block;
  padding-top: 22px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: .95rem;
}

.error-page a:focus-visible,
.error-page button:focus-visible {
  outline: 3px solid var(--green);
  outline-offset: 5px;
}

.error-page .site-footer a:focus-visible {
  outline-color: var(--mint);
}

@media (max-width: 950px) {
  .error-layout { gap: 40px; }
  .error-card { padding: 28px; }
  .error-number { font-size: clamp(5.5rem, 10vw, 7rem); }
}

@media (max-width: 720px) {
  .error-layout { grid-template-columns: 1fr; padding: 60px 20px; gap: 40px; }
  .error-copy .hero-lede { font-size: 1.05rem; margin: 24px 0; }
  .error-card { width: 100%; max-width: 400px; }
  .error-number { font-size: 6rem; margin: 22px 0; }
}

@media (prefers-reduced-motion: reduce) {
  .error-page .button { transition: none; }
  .error-page .button:hover { transform: none; }
}