.error-404 {
  position: relative;
  min-height: 80vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background-image: var(--hero-bg);
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

.error-404__inner {
  text-align: center;
  padding: 80px 20px;
}

.error-404__code {
  display: block;
  font-family: var(--font-heading);
  font-size: clamp(6rem, 15vw, 12rem);
  font-weight: 700;
  line-height: 1;
  background: linear-gradient(135deg, #fff 0%, var(--color-primary) 50%, var(--color-accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 16px;
}

.error-404__title {
  font-size: clamp(1.5rem, 3vw, 2.5rem);
  margin-bottom: 16px;
}

.error-404__desc {
  font-size: 1.125rem;
  color: var(--color-text-muted);
  max-width: 480px;
  margin: 0 auto 40px;
  line-height: 1.7;
}

.error-404__btn {
  font-size: 1.0625rem;
  padding: 16px 40px;
}