/* =========================================================
   10. THRESHOLD GATE
   ========================================================= */

.threshold-gate {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: grid;
  place-items: center;
  min-height: 100vh;
  padding: 1.5rem;
  color: var(--cream);
  background:
    linear-gradient(rgba(8, 10, 8, 0.45), rgba(8, 10, 8, 0.78)),
    url("https://images.unsplash.com/photo-1448375240586-882707db888b?auto=format&fit=crop&w=1800&q=80") center/cover;
  opacity: 1;
  visibility: visible;
  transition: opacity 1.2s ease, visibility 1.2s ease;
  overflow-y: auto;
  align-items: start;
}

.threshold-gate.is-hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.threshold-mist {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 20% 30%, rgba(244, 236, 216, 0.12), transparent 18rem),
    radial-gradient(circle at 80% 70%, rgba(185, 160, 93, 0.12), transparent 20rem),
    linear-gradient(120deg, transparent, rgba(244, 236, 216, 0.06), transparent);
  animation: thresholdMist 12s ease-in-out infinite alternate;
}

.threshold-card {
  position: relative;
  width: min(760px, 100%);
  padding: clamp(2rem, 6vw, 4rem);
  text-align: center;
  border: 1px solid rgba(185, 160, 93, 0.36);
  border-radius: 1.4rem;
  background:
    radial-gradient(circle at top, rgba(185, 160, 93, 0.12), transparent 16rem),
    linear-gradient(145deg, rgba(16, 33, 24, 0.82), rgba(8, 10, 8, 0.92));
  box-shadow: 0 30px 100px rgba(0, 0, 0, 0.65);
  backdrop-filter: blur(8px);
  margin: 2rem 0;
}

.threshold-card::before {
  content: "";
  position: absolute;
  inset: 1rem;
  border: 1px solid rgba(185, 160, 93, 0.22);
  border-radius: 1rem;
  pointer-events: none;
}

.threshold-eyebrow {
  color: var(--gold);
  text-transform: uppercase;
  letter-spacing: 0.22em;
  font-size: 0.78rem;
  margin-bottom: 1rem;
}

.threshold-card h1 {
  max-width: none;
  font-size: clamp(3.4rem, 9vw, 7rem);
  line-height: 0.9;
  margin-bottom: 1.25rem;
}

.threshold-invitation {
  max-width: 52ch;
  margin: 0 auto 2rem;
  color: var(--cream);
  font-size: 1.1rem;
}

.threshold-question {
  max-width: 48ch;
  margin: 2rem auto;
  padding: 1.5rem;
  color: var(--cream);
  font-style: italic;
  border-left: 3px solid var(--gold);
  background: rgba(185, 160, 93, 0.08);
  border-radius: 0.75rem;
}

.threshold-actions {
  display: flex;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
  margin-top: 2rem;
}

.threshold-button {
  border: 1px solid rgba(244, 236, 216, 0.28);
  border-radius: 999px;
  padding: 0.85rem 1.2rem;
  font: inherit;
  cursor: pointer;
  transition: transform 0.2s ease, background 0.2s ease, border-color 0.2s ease;
}

.threshold-button:hover,
.threshold-button:focus-visible {
  transform: translateY(-2px);
  border-color: var(--gold);
}

.threshold-button-primary {
  background: var(--cream);
  color: var(--forest);
  font-weight: 700;
}

.threshold-button-quiet {
  background: rgba(244, 236, 216, 0.06);
  color: var(--cream);
}

.threshold-note {
  margin: 2rem auto 0;
  max-width: 48ch;
  color: var(--muted);
  font-size: 0.95rem;
}

body.threshold-locked {
  overflow: hidden;
}

@keyframes thresholdMist {
  from {
    opacity: 0.55;
    transform: translateX(-1rem);
  }

  to {
    opacity: 0.9;
    transform: translateX(1rem);
  }
}




/* =========================================================
   THRESHOLD RESPONSIVE STYLES
   ========================================================= */

@media (max-width: 700px) {
  .threshold-card h1 {
    font-size: clamp(3rem, 16vw, 5rem);
  }

  .threshold-actions {
    display: grid;
  }
}