/* ============ ERROR PAGES (404 / 500) ============ */

.error-shell {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 32px;
  background: var(--bg-body);
  position: relative;
  overflow: hidden;
}
.error-shell::before {
  content: '';
  position: absolute;
  inset: -20% -10% auto auto;
  width: 60vmax; aspect-ratio: 1;
  background: radial-gradient(circle, color-mix(in oklab, var(--primary) 10%, transparent), transparent 70%);
  pointer-events: none;
}
.error-shell::after {
  content: '';
  position: absolute;
  inset: auto auto -20% -10%;
  width: 60vmax; aspect-ratio: 1;
  background: radial-gradient(circle, color-mix(in oklab, var(--purple) 8%, transparent), transparent 70%);
  pointer-events: none;
}

.error-card {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 18px;
  box-shadow: var(--shadow-lg);
  padding: 48px 56px;
  max-width: 540px;
  width: 100%;
  text-align: center;
  animation: rise-in 600ms cubic-bezier(.2,.7,.2,1) both;
}
@media (max-width: 600px) {
  .error-card { padding: 32px 24px; }
}

.error-eyebrow {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--t-light);
  margin-bottom: 14px;
  display: block;
}
.error-code {
  font-family: 'Inter Tight', sans-serif;
  font-weight: 700;
  font-size: clamp(96px, 16vw, 160px);
  line-height: 0.95;
  letter-spacing: -0.05em;
  background: linear-gradient(135deg, var(--primary), var(--purple));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  margin-bottom: 8px;
}
.error-title {
  font-family: 'Inter Tight', sans-serif;
  font-weight: 700;
  font-size: 24px;
  letter-spacing: -0.022em;
  color: var(--t-base);
  margin: 0 0 10px;
}
.error-sub {
  font-size: 14px;
  color: var(--t-muted);
  line-height: 1.6;
  margin: 0 0 24px;
  max-width: 40ch;
  margin-left: auto;
  margin-right: auto;
}

.error-actions {
  display: flex; gap: 10px; justify-content: center; flex-wrap: wrap;
}

.error-meta {
  margin-top: 28px;
  padding-top: 18px;
  border-top: 1px dashed var(--border);
  font-family: 'JetBrains Mono', monospace;
  font-size: 10.5px;
  color: var(--t-light);
  letter-spacing: 0.06em;
  display: flex; gap: 16px; justify-content: center; flex-wrap: wrap;
}
.error-meta strong { color: var(--t-muted); font-weight: 600; }