/* The same viewer serves existing saved photo blocks and the standalone preview. */
.bt-about .bt-history-photo a[data-bt-lightbox]{cursor:zoom-in}
.bt-history-lightbox-open{overflow:hidden!important;scrollbar-gutter:stable}
.bt-history-lightbox-open body{overflow:hidden!important}
dialog.bt-history-lightbox{position:fixed;inset:0;box-sizing:border-box;width:100%;height:100vh;height:100dvh;max-width:none;max-height:none;margin:0;padding:clamp(16px,3vw,32px);padding-top:max(16px,env(safe-area-inset-top));padding-bottom:max(16px,env(safe-area-inset-bottom));border:0;background:transparent;color:#f4f1ea;overflow:hidden;font-family:Montserrat,sans-serif}
dialog.bt-history-lightbox:not([open]){display:none}
dialog.bt-history-lightbox[open]{display:grid;place-items:center}
.bt-history-lightbox::backdrop{background:rgba(12,16,14,.94);backdrop-filter:blur(3px)}
.bt-history-lightbox .bt-history-lightbox__panel{position:relative;display:grid;grid-template-rows:auto minmax(0,1fr);gap:12px;width:min(1180px,100%);height:100%;min-height:0;margin:0;animation:bt-history-photo-open .18s ease-out}
.bt-history-lightbox .bt-history-lightbox__close{justify-self:end;display:inline-flex;align-items:center;justify-content:center;gap:14px;min-width:112px;min-height:44px;margin:0;padding:8px 14px;border:1px solid #747b75;border-radius:0;background:#171c18;color:#f4f1ea;font:600 13px/1.5 Montserrat,sans-serif;letter-spacing:0;text-transform:none;cursor:pointer}
.bt-history-lightbox__close span{font-size:26px;line-height:1}
.bt-history-lightbox .bt-history-lightbox__close:hover{background:#257b70;border-color:#97c6b5}
.bt-history-lightbox .bt-history-lightbox__close:focus-visible{outline:3px solid #97c6b5;outline-offset:4px}
.bt-history-lightbox .bt-history-lightbox__figure{display:grid;grid-template-rows:minmax(0,1fr) auto;gap:12px;width:100%;height:100%;min-width:0;min-height:0;margin:0}
.bt-history-lightbox .bt-history-lightbox__image{display:block;align-self:center;justify-self:center;width:auto;height:auto;max-width:100%;max-height:100%;min-width:0;min-height:0;margin:0;object-fit:contain;border:0;box-shadow:0 12px 40px #0005}
.bt-history-lightbox .bt-history-lightbox__caption{margin:0;color:#e2e6e0;text-align:center;font:400 13px/1.6 Montserrat,sans-serif;overflow-wrap:anywhere}
.bt-history-lightbox__error{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);width:min(420px,90%);box-sizing:border-box;margin:0;padding:20px;border:1px solid #747b75;background:#171c18;color:#f4f1ea;font:400 14px/1.7 Montserrat,sans-serif;text-align:center}
.bt-history-lightbox__error[hidden]{display:none}
@keyframes bt-history-photo-open{from{opacity:0;transform:translateY(6px) scale(.99)}to{opacity:1;transform:none}}
@media(max-width:600px){.bt-history-lightbox .bt-history-lightbox__panel,.bt-history-lightbox .bt-history-lightbox__figure{gap:10px}.bt-history-lightbox .bt-history-lightbox__caption{font-size:12px}}
@media(prefers-reduced-motion:reduce){.bt-history-lightbox .bt-history-lightbox__panel{animation:none}}