/* =============================================================================
   lib/styles/pages/not_found_page.css
   ============================================================================ */

.not-found-page {
  display: flex;
  justify-content: center;
  padding: var(--space-8, 2rem) 0 var(--space-12, 3rem) 0;
}

.not-found-page__hero {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-6, 1.5rem);
  max-width: 32rem;
  text-align: center;
}

.not-found-page__illustration {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 14rem;
  height: 14rem;
  margin-bottom: var(--space-4, 1rem);
  border: 1px solid var(--color-border, #d1d5db);
  border-radius: var(--radius-full, 9999px);
  background: linear-gradient(
    135deg,
    var(--color-background-alt, #f9fafb) 0%,
    var(--color-border-subtle, #eaeaea) 100%
  );
  box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.05);
}

.not-found-page__illustration-code {
  font-family: var(--font-heading, system-ui, sans-serif);
  font-size: 4.5rem;
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.05em;
  color: var(--color-primary, #0052e0);
}

.not-found-page__illustration-icon {
  margin-top: var(--space-2, 0.5rem);
  font-size: 2rem;
  color: var(--color-text-muted, #9ca3af);
}

.not-found-page__title {
  margin: 0;
  font-family: var(--font-heading, system-ui, sans-serif);
  font-size: var(--font-size-h3, 1.5rem);
  font-weight: 700;
  color: var(--color-text-primary, #111827);
}

.not-found-page__copy {
  margin: 0;
  font-size: var(--font-size-body-lg, 1.125rem);
  line-height: 1.6;
  color: var(--color-text-secondary, #4b5563);
}

.not-found-page__actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-4, 1rem);
  margin-top: var(--space-2, 0.5rem);
}

.not-found-page__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3rem;
  padding: 0 var(--space-8, 2rem);
  border: 1px solid transparent;
  border-radius: var(--radius-full, 9999px);
  font-size: var(--font-size-body, 1rem);
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition:
    transform var(--motion-transition-interactive, 180ms ease-out),
    background-color var(--motion-transition-interactive, 180ms ease-out),
    color var(--motion-transition-interactive, 180ms ease-out),
    border-color var(--motion-transition-interactive, 180ms ease-out),
    box-shadow var(--motion-transition-interactive, 180ms ease-out),
    opacity var(--motion-transition-interactive, 180ms ease-out);
}

.not-found-page__btn:active {
  transform: scale(0.98);
}

.not-found-page__btn--primary {
  background-color: var(--color-primary, #0052e0);
  color: var(--color-text-inverse, #ffffff);
}

.not-found-page__btn--primary:hover,
.not-found-page__btn--primary:focus-visible {
  background-color: var(--color-primary-dark, #003db3);
}

.not-found-page__btn--secondary {
  background-color: var(--color-surface-primary, #ffffff);
  color: var(--color-text-primary, #111827);
  border-color: var(--color-border, #d1d5db);
}

.not-found-page__btn--secondary:hover,
.not-found-page__btn--secondary:focus-visible {
  background-color: var(--color-background-alt, #f9fafb);
}

@media (max-width: 640px) {
  .not-found-page {
    padding: var(--space-6, 1.5rem) 0 var(--space-10, 2.5rem) 0;
  }

  .not-found-page__hero {
    gap: var(--space-5, 1.25rem);
  }

  .not-found-page__illustration {
    width: 11rem;
    height: 11rem;
  }

  .not-found-page__illustration-code {
    font-size: 3.5rem;
  }

  .not-found-page__actions {
    width: 100%;
    flex-direction: column;
  }

  .not-found-page__btn {
    width: 100%;
  }
}

@media (prefers-reduced-motion: no-preference) {
  .not-found-page__hero > * {
    opacity: 0;
    transform: translateY(16px);
    transition:
      opacity var(--motion-duration-medium, 400ms) var(--motion-ease-out, ease-out),
      transform var(--motion-duration-medium, 400ms) var(--motion-ease-out, ease-out);
  }

  .is-visible.not-found-page__hero > *,
  .is-visible .not-found-page__hero > * {
    opacity: 1;
    transform: translateY(0);
  }

  .is-visible .not-found-page__hero > :nth-child(1) {
    transition-delay: 0.08s;
  }

  .is-visible .not-found-page__hero > :nth-child(2) {
    transition-delay: 0.16s;
  }

  .is-visible .not-found-page__hero > :nth-child(3) {
    transition-delay: 0.24s;
  }

  .is-visible .not-found-page__hero > :nth-child(4) {
    transition-delay: 0.32s;
  }
}