/* ── External link interstitial ── */
.ext-interstitial {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 24px;
}
.ext-interstitial.is-open { display: flex; }
.ext-interstitial__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(20, 18, 14, 0.35);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  opacity: 0;
  transition: opacity 0.25s ease;
}
.ext-interstitial.is-open .ext-interstitial__backdrop { opacity: 1; }
.ext-interstitial__card {
  position: relative;
  width: min(420px, 100%);
  background: #f6f1e9;
  border-radius: 14px;
  padding: 28px 28px 22px;
  box-shadow: 0 20px 60px rgba(20, 18, 14, 0.25), 0 1px 0 rgba(20, 18, 14, 0.06);
  transform: translateY(8px) scale(0.98);
  opacity: 0;
  transition: transform 0.3s cubic-bezier(0.2, 0.8, 0.2, 1), opacity 0.25s ease;
  font-family: 'Inter', sans-serif;
}
.ext-interstitial.is-open .ext-interstitial__card {
  transform: translateY(0) scale(1);
  opacity: 1;
}
.ext-interstitial__eyebrow {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: rgba(27, 23, 18, 0.5);
  margin: 0 0 10px;
}
.ext-interstitial__title {
  font-family: 'Fraunces', Georgia, serif;
  font-size: 1.35rem;
  font-weight: 300;
  letter-spacing: -0.02em;
  line-height: 1.25;
  color: #1b1712;
  margin: 0 0 6px;
}
.ext-interstitial__title strong { font-weight: 500; }
.ext-interstitial__url {
  font-size: 0.78rem;
  color: rgba(27, 23, 18, 0.5);
  margin: 0 0 20px;
  word-break: break-all;
  line-height: 1.4;
}
.ext-interstitial__progress {
  height: 3px;
  background: rgba(27, 23, 18, 0.08);
  border-radius: 2px;
  overflow: hidden;
  margin: 0 0 22px;
}
.ext-interstitial__progress-bar {
  height: 100%;
  width: 0%;
  background: #1b1712;
  border-radius: 2px;
  transition: width 0.1s linear;
}
.ext-interstitial__actions {
  display: flex;
  gap: 10px;
  justify-content: flex-end;
}
.ext-interstitial__btn {
  font-family: 'Inter', sans-serif;
  font-size: 0.85rem;
  font-weight: 500;
  padding: 10px 18px;
  border-radius: 8px;
  border: 1px solid rgba(27, 23, 18, 0.16);
  background: transparent;
  color: #1b1712;
  cursor: pointer;
  transition: background 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}
.ext-interstitial__btn:hover {
  background: rgba(27, 23, 18, 0.04);
  border-color: rgba(27, 23, 18, 0.3);
}
.ext-interstitial__btn--primary {
  background: #1b1712;
  color: #f6f1e9;
  border-color: #1b1712;
}
.ext-interstitial__btn--primary:hover {
  background: #2a241d;
  border-color: #2a241d;
  color: #f6f1e9;
}
.ext-interstitial__countdown {
  font-variant-numeric: tabular-nums;
  font-size: 0.78rem;
  color: rgba(27, 23, 18, 0.5);
  margin-right: auto;
  align-self: center;
}