html.opening-active, html.opening-active body { overflow: hidden; overscroll-behavior: none; }
#opening-scene {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  height: 100dvh;
  max-width: none;
  max-height: none;
  margin: 0;
  padding: 0;
  border: 0;
  border-radius: 0;
  overflow: clip;
  color: #fff7df;
  background: #162e2b;
  box-shadow: none;
}
#opening-scene::backdrop { background: #162e2b; }
#opening-scene .opening-backdrop {
  position: absolute;
  inset: 0;
  background: linear-gradient(#132a2699, #132a26c9), url('assets/lumi-opening-v14.jpg') center 60% / cover;
  filter: blur(24px);
}
#opening-video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
}
#opening-scene .opening-shade {
  position: absolute;
  inset: 0;
  background: linear-gradient(#102c2980, transparent 27%, transparent 72%, #102c29dc);
  pointer-events: none;
}
.opening-heading {
  position: absolute;
  top: max(30px, env(safe-area-inset-top));
  left: 20px;
  right: 20px;
  text-align: center;
  text-shadow: 0 2px 16px #13231fe0;
  pointer-events: none;
}
.opening-heading p { margin: 0 0 8px; font-size: 12px; letter-spacing: .08em; color: #f7e5bd; }
.opening-heading h2 { margin: 0 0 8px; font-size: clamp(26px, 4vw, 42px); font-weight: 700; }
.opening-heading #opening-description { font-size: 13px; color: #fff6df; letter-spacing: .02em; }
.opening-footer {
  position: absolute;
  bottom: max(24px, env(safe-area-inset-bottom));
  left: max(18px, env(safe-area-inset-left));
  right: max(18px, env(safe-area-inset-right));
  display: grid;
  justify-items: center;
  gap: 12px;
}
#opening-status { margin: 0; font-size: 12px; color: #f8edd2; text-shadow: 0 2px 8px #142d28; }
.opening-actions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
.opening-actions button {
  min-height: 44px;
  padding: 10px 15px;
  border: 1px solid #f2dfb566;
  border-radius: 24px;
  background: #14362de6;
  color: #fff7df;
  font-size: 13px;
  font-weight: 600;
}
.opening-actions button:hover { background: #285747; }
.opening-actions button:focus-visible { outline: 3px solid #ffdda0; outline-offset: 3px; }
.opening-actions #opening-skip { background: #efcc88; color: #382d1e; border-color: #efcc88; }
.opening-progress { width: min(320px, 80vw); height: 3px; border-radius: 3px; background: #fff4d42e; overflow: hidden; }
.opening-progress span { display: block; width: 0; height: 100%; background: #f5d591; }
@media (max-height: 520px) and (min-width: 650px) {
  .opening-heading { top: 28px; right: 70%; left: 20px; }
  .opening-heading h2 { font-size: 24px; line-height: 1.5; }
  .opening-footer { left: 71%; right: 14px; bottom: 25px; text-align: center; }
  .opening-actions { gap: 6px; }
  .opening-progress { width: 100%; }
}
@media (max-width: 360px) {
  .opening-actions button { font-size: 12px; padding-inline: 12px; }
  .opening-heading { top: max(20px, env(safe-area-inset-top)); }
  .opening-heading h2 { font-size: 26px; }
}