.error-page {
  min-height: calc(100vh - var(--nav-height));
  display: flex;
  align-items: center;
  justify-content: center;
  padding-block: var(--space-6) var(--space-20);
  position: relative;
  overflow: hidden;
}

.error-page::before {
  content: '';
  position: absolute;
  top: -120px;
  right: -100px;
  width: 560px;
  height: 560px;
  background: radial-gradient(circle, rgba(160, 82, 34, 0.07) 0%, transparent 65%);
  pointer-events: none;
}

.error-page::after {
  content: '';
  position: absolute;
  bottom: -80px;
  left: -60px;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(160, 82, 34, 0.05) 0%, transparent 65%);
  pointer-events: none;
}

.error-page__inner {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 640px;
  padding-inline: var(--space-6);
}

.error-page__code {
  font-family: var(--font-display);
  font-size: clamp(7rem, 20vw, 11rem);
  font-weight: var(--weight-bold);
  line-height: 1;
  letter-spacing: -0.04em;
  color: transparent;
  -webkit-text-stroke: 2px var(--clr-border);
  user-select: none;
  margin-bottom: var(--space-8);
  filter: drop-shadow(0 2px 0 var(--clr-border));
}

.error-page__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-ui);
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--clr-accent);
  background: var(--clr-accent-soft);
  padding: var(--space-1) var(--space-4);
  border-radius: var(--radius-pill);
  margin-bottom: var(--space-6);
}

.error-page__heading {
  font-family: var(--font-display);
  font-size: clamp(var(--text-xl), 4vw, var(--text-3xl));
  font-weight: var(--weight-bold);
  color: var(--clr-ink);
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-4);
}

.error-page__heading em {
  font-style: italic;
  color: var(--clr-accent);
}

.error-page__body {
  font-family: var(--font-body);
  font-size: var(--text-md);
  line-height: var(--leading-loose);
  color: var(--clr-ink-muted);
  max-width: 46ch;
  margin-inline: auto;
  margin-bottom: var(--space-10);
}

.error-page__actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-4);
  flex-wrap: wrap;
  margin-bottom: var(--space-12);
}

.error-page__link-ghost {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-ui);
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  color: var(--clr-ink-muted);
  border: 1px solid var(--clr-border);
  padding: var(--space-3) var(--space-5);
  border-radius: var(--radius-pill);
  transition: border-color var(--dur-normal) var(--ease-out),
              color var(--dur-normal) var(--ease-out),
              background var(--dur-normal) var(--ease-out),
              transform var(--dur-fast) var(--ease-out);
}

.error-page__link-ghost:hover {
  border-color: var(--clr-accent);
  color: var(--clr-accent);
  background: var(--clr-accent-soft);
  transform: translateY(-1px);
}

.error-page__search {
  position: relative;
  max-width: 380px;
  margin-inline: auto;
}

.error-page__search-label {
  display: block;
  font-family: var(--font-ui);
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--clr-ink-faint);
  margin-bottom: var(--space-3);
}

.error-page__search-wrap {
  position: relative;
  display: flex;
  align-items: center;
}

.error-page__search-input {
  width: 100%;
  padding: var(--space-3) var(--space-5);
  padding-right: 3.2rem;
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-pill);
  background: var(--clr-surface);
  font-family: var(--font-ui);
  font-size: var(--text-sm);
  color: var(--clr-ink);
  outline: none;
  transition: border-color var(--dur-fast) var(--ease-out),
              box-shadow var(--dur-fast) var(--ease-out);
}

.error-page__search-input:focus {
  border-color: var(--clr-accent);
  box-shadow: 0 0 0 3px rgba(160, 82, 34, 0.12);
}

.error-page__search-input::placeholder { color: var(--clr-ink-faint); }

.error-page__search-btn {
  position: absolute;
  right: var(--space-2);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: var(--radius-pill);
  border: none;
  background: var(--clr-accent);
  color: #fff;
  cursor: pointer;
  transition: background var(--dur-fast) var(--ease-out),
              transform var(--dur-fast) var(--ease-out);
  flex-shrink: 0;
}

.error-page__search-btn:hover {
  background: var(--clr-accent-hover);
  transform: scale(1.08);
}

.error-page__floaters {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
}

.floater {
  position: absolute;
  font-family: var(--font-display);
  font-weight: var(--weight-bold);
  color: var(--clr-accent);
  opacity: 0.06;
  user-select: none;
  animation: floater-drift linear infinite;
}

@keyframes floater-drift {
  0% { transform: translateY(0) rotate(var(--rot-start)); }
  100% { transform: translateY(-110vh) rotate(var(--rot-end)); }
}