/* ── Hero entrance ─────────────────────────── */
@keyframes heroIn {
  from {
    opacity: 0;
    transform: translateY(26px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

.hero-stagger {
  opacity: 0;
  animation: heroIn 700ms cubic-bezier(0.16, 1, 0.3, 1) forwards;
  animation-delay: calc(var(--d, 0) * 1ms);
}

@media (prefers-reduced-motion: reduce) {
  .hero-stagger {
    opacity: 1;
    animation: none;
  }
  .reveal {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }
}

/* ── Language switcher ────────────────────── */
.lang-btn {
  padding: 0.2rem 0.65rem;
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  background: transparent;
  border: none;
  cursor: pointer;
  color: #a8a29e;
  transition: all 150ms ease;
}

.lang-btn:hover {
  color: #78716c;
}

.lang-btn.is-active {
  background: #1c1917;
  color: #fafaf9;
}

/* ── Mobile nav (slide) ───────────────────── */
.mobile-nav {
  max-height: 0;
  overflow: hidden;
  transition: max-height 350ms cubic-bezier(0.23, 1, 0.32, 1);
}

.mobile-nav.open {
  max-height: 380px;
}

/* ── Reveal on scroll ─────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 600ms cubic-bezier(0.23, 1, 0.32, 1),
              transform 600ms cubic-bezier(0.23, 1, 0.32, 1);
}

.reveal.visible {
  opacity: 1;
  transform: none;
}

/* ── Selection ────────────────────────────── */
::selection {
  background: #d6d3d1;
  color: #1c1917;
}

/* ── Fixed header offset ──────────────────── */
:target {
  scroll-margin-top: 80px;
}