/* The loading UI is HTML/CSS and is visible before the 3D bundle executes. */
@property --loading-opening { syntax: '<length-percentage>'; inherits: false; initial-value: 0%; }
.loading-state {
  position: fixed; inset: 0; z-index: 999; display: grid; place-items: center;
  width: 100%; max-width: none; padding: 24px; border: 0; overflow: auto;
  color: #f6f4ec; background: #183a30; pointer-events: auto; text-align: center;
  transition: none;
}
.loading-state > .loading-shell { display: flex; align-items: center; gap: 0; width: min(100%, 450px); margin: auto; }
.loading-office { margin: 0 0 32px; font-size: 14px; font-weight: 600; letter-spacing: .12em; }
.loading-instrument { position: relative; width: clamp(154px, 23vw, 220px); aspect-ratio: 1; margin: 0 auto 26px; }
.loading-ring { position: absolute; border-radius: 50%; inset: 0; border: 1px solid rgba(195,170,120,.7); }
.loading-ring-outer { border-top-color: #f0d8a4; border-right-color: rgba(195,170,120,.28); animation: loading-spin 12s linear infinite; }
.loading-ring-inner { inset: 17%; border-color: rgba(246,244,236,.55); border-left-color: #c3aa78; animation: loading-spin 17s linear infinite reverse; }
.loading-cross { position: absolute; background: rgba(228,234,225,.35); }
.loading-cross-horizontal { left: 7%; right: 7%; top: 50%; height: 1px; }
.loading-cross-vertical { top: 7%; bottom: 7%; left: 50%; width: 1px; }
.loading-observation-line { position: absolute; left: 50%; top: 50%; width: 44%; height: 1px; transform-origin: left; background: linear-gradient(90deg, #c3aa78, transparent); animation: loading-observe 6s ease-in-out infinite alternate; }
.loading-center { position: absolute; left: 50%; top: 50%; width: 5px; height: 5px; border-radius: 50%; background: #dfc997; transform: translate(-50%, -50%); box-shadow: 0 0 12px rgba(195,170,120,.5); }
.loading-state .loading-values { display: flex; justify-content: center; flex-wrap: wrap; gap: 12px 24px; margin-bottom: 20px; }
.loading-state .loading-values span { opacity: 1; font: 10px/1.5 ui-monospace, monospace; letter-spacing: .04em; color: #c3aa78; }
.loading-state .loading-values b { margin-left: 4px; font: inherit; letter-spacing: .02em; color: #f6f4ec; }
.loading-status { margin: 0; font-size: 13px; letter-spacing: .08em; }
.loading-slow { margin: 16px 0 0; font-size: 13px; line-height: 1.7; color: #f4e6c7; }
.loading-actions { display: flex; justify-content: center; flex-wrap: wrap; gap: 12px; margin-top: 26px; }
.loading-actions a { min-height: 44px; display: inline-flex; align-items: center; justify-content: center; gap: 10px; padding: 11px 18px; border: 1px solid rgba(246,244,236,.45); color: #f6f4ec; font-size: 13px; text-decoration: none; transition: background .2s, border-color .2s; }
.loading-actions a:first-child { background: #f6f4ec; border-color: #f6f4ec; color: #183a30; }
.loading-actions a:hover, .loading-actions a:focus-visible { outline: 2px solid #c3aa78; outline-offset: 3px; }
.loading-state .loading-actions a span { opacity: 1; font-size: inherit; }
.loading-caption { margin: 20px 0 0; color: rgba(246,244,236,.65); font-size: 11px; }
.loading-state.is-done { pointer-events: none; visibility: visible; animation: loading-open .45s ease-in forwards; }
.loading-state.is-done .loading-shell { opacity: 0; transition: opacity .18s ease; }
@keyframes loading-spin { to { transform: rotate(360deg); } }
@keyframes loading-observe { from { transform: rotate(-35deg); } to { transform: rotate(70deg); } }
@keyframes loading-open {
  0% { --loading-opening: 0%; opacity: 1; mask-image: radial-gradient(circle at center, transparent var(--loading-opening), #000 calc(var(--loading-opening) + 2px)); }
  75% { opacity: 1; }
  100% { --loading-opening: 150%; opacity: 0; mask-image: radial-gradient(circle at center, transparent var(--loading-opening), #000 calc(var(--loading-opening) + 2px)); visibility: hidden; }
}
@media (max-width: 560px) { .loading-office { margin-bottom: 26px; font-size: 13px; } .loading-state { padding: 20px; } .loading-actions a { padding-inline: 14px; } }
@media (prefers-reduced-motion: reduce) { .loading-ring, .loading-observation-line { animation: none; } .loading-state.is-done { animation: none; opacity: 0; visibility: hidden; transition: opacity .08s linear, visibility .08s; } }
.fallback-message:not([hidden]) { position: fixed; z-index: 1000; left: 50%; bottom: 16px; width: max-content; max-width: calc(100% - 32px); padding: 11px 16px; color: #f6f4ec; background: #183a30; border: 1px solid #c3aa78; font-size: 13px; line-height: 1.5; }