:root{color-scheme:dark;--ink:#16231d;--ivory:#fffdf7;--gold:#ddc9a9;--glass:rgba(17,26,22,.76);font-family:Arial,Helvetica,sans-serif;color:var(--ivory);font-synthesis:none}
*{box-sizing:border-box}html,body{width:100%;height:100%;margin:0;overflow:hidden}button{-webkit-tap-highlight-color:transparent;font:inherit;color:inherit;cursor:pointer;border:0}button:disabled{opacity:.3;cursor:default}button:focus-visible,canvas:focus-visible{outline:2px solid var(--gold);outline-offset:3px}button:hover:not(:disabled){color:var(--gold)}[hidden]{display:none!important}button svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0}
#tour{position:relative;isolation:isolate;width:100%;height:100%;height:100dvh;background:#15231b url('./assets/cover.jpg') center/cover no-repeat}#tour.is-expanded{position:fixed;inset:0;width:100%;height:100%;height:100dvh}#panorama{position:absolute;inset:0;width:100%;height:100%;display:block;touch-action:none;cursor:grab}#panorama:active{cursor:grabbing}
.control-dock{position:absolute;z-index:3;right:max(14px,env(safe-area-inset-right));bottom:max(14px,env(safe-area-inset-bottom));display:flex;flex-direction:column;align-items:flex-end;gap:6px;max-height:calc(100% - 28px);width:208px}.icon-button{width:40px;height:40px;min-height:40px;display:inline-flex;align-items:center;justify-content:center;border-radius:50%;background:var(--glass);border:1px solid #ffffff40;backdrop-filter:blur(12px);flex-shrink:0}.menu-toggle{opacity:.9;box-shadow:0 2px 10px #0002}.menu-toggle:hover,.menu-toggle[aria-expanded=true],.menu-toggle:focus-visible{opacity:1}.menu-toggle[aria-expanded=true]{background:var(--ivory);color:var(--ink)}.toolbar{width:100%;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));justify-items:center;align-items:center;gap:6px;overflow-y:auto;overflow-x:hidden;min-height:0;padding:8px;border:1px solid #ffffff40;border-radius:15px;background:var(--glass);backdrop-filter:blur(12px);scrollbar-width:thin;scrollbar-color:#ddc9a980 transparent}.toolbar .icon-button{background:transparent}.control-value{display:block;font-size:13px;line-height:20px;text-align:center;color:var(--ivory);font-variant-numeric:tabular-nums;text-shadow:0 1px 6px #000;white-space:nowrap}.view-tools{display:flex;align-items:center;gap:4px;padding:5px;border:1px solid #ffffff40;border-radius:30px;background:var(--glass);backdrop-filter:blur(12px);flex-shrink:0}.view-tools .icon-button{background:transparent;border:0}.view-tools .control-value{min-width:42px}.angle-control{grid-column:1/-1;display:flex;flex-direction:column;width:100%;gap:4px;font-size:12px;line-height:18px;padding:2px 6px 4px}.angle-control input{width:100%;height:24px;margin:0;accent-color:var(--gold);cursor:pointer;touch-action:pan-x}.angle-control input:focus-visible{outline:2px solid var(--gold);outline-offset:2px}#gyro[aria-pressed=true]{background:var(--ivory);color:var(--ink)}.view-hint{position:absolute;z-index:2;left:max(18px,env(safe-area-inset-left));bottom:max(18px,env(safe-area-inset-bottom));max-width:calc(100% - 240px);margin:0;padding:9px 12px;border:1px solid #ffffff30;border-radius:20px;background:var(--glass);color:var(--ivory);font-size:12px;line-height:1.45;pointer-events:none}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.route-panel{position:absolute;z-index:5;right:max(234px,calc(env(safe-area-inset-right) + 220px));top:50%;transform:translateY(-50%);width:min(330px,calc(100% - 252px));max-height:calc(100% - 40px);padding:16px 18px;border:1px solid #ffffff25;border-radius:18px;background:rgba(16,25,20,.94);backdrop-filter:blur(25px);box-shadow:0 15px 60px #0003;overflow:auto}.panel-head{display:flex;align-items:center;justify-content:space-between;font:400 24px Georgia,serif}.panel-head .icon-button{width:36px;height:36px;min-height:36px;background:transparent;border:0}.route-panel h1{font-size:16px;line-height:1.4;margin:14px 0 5px;color:var(--gold)}.route-panel>p{font-size:14px;line-height:1.5;margin:0;color:#f5f1e8d9}.route-panel ol{padding:12px 0;margin:0;list-style:none;display:flex;flex-direction:column;gap:3px}.route-panel li button{width:100%;background:transparent;border-radius:10px;padding:12px 8px;text-align:left;display:flex;align-items:center;gap:12px;font-size:14px;line-height:1.4;min-height:44px}.route-panel li button span{font-size:12px;color:#baad97;font-variant-numeric:tabular-nums}.route-panel li button[aria-current=step]{background:#e2d4bb15;color:var(--gold)}.route-panel .panel-note{font-size:12px;line-height:1.8;color:#bcb9ad;margin:8px 8px 4px;border-top:1px solid #ffffff18;padding-top:12px}
.loading{position:absolute;left:50%;top:48%;transform:translate(-50%,-50%);z-index:6;display:flex;align-items:center;gap:12px;background:var(--glass);border:1px solid #ffffff25;border-radius:40px;padding:16px 22px;font-size:14px;white-space:nowrap;backdrop-filter:blur(18px)}.spinner{height:17px;width:17px;border:2px solid #ffffff30;border-top-color:var(--gold);border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.error,.sensor-status{position:absolute;z-index:7;top:50%;left:50%;transform:translate(-50%,-50%);width:min(340px,calc(100% - 40px));background:var(--glass);border:1px solid #ffffff30;border-radius:18px;padding:22px;text-align:center;font-size:14px;line-height:1.5}.error p{font-size:16px;line-height:1.6}.error button{padding:13px 20px;background:var(--ivory);color:var(--ink);border-radius:30px;font-size:14px}
@media(pointer:coarse){.icon-button{width:44px;height:44px;min-height:44px}.control-dock{right:max(10px,env(safe-area-inset-right))}.view-tools .control-value{min-width:36px}}
@media(max-width:620px){.route-panel{right:12px;top:12px;transform:none;width:calc(100% - 24px);max-height:calc(100% - 128px)}.view-hint{left:14px;top:14px;bottom:auto;max-width:calc(100% - 28px)}}
@media(max-height:520px){.control-dock{width:min(286px,calc(100% - 24px));bottom:max(10px,env(safe-area-inset-bottom));right:max(12px,env(safe-area-inset-right));max-height:calc(100% - 20px)}.toolbar{grid-template-columns:repeat(4,minmax(0,1fr));gap:4px;padding:5px}.angle-control{flex-direction:row;align-items:center;gap:10px;white-space:nowrap;padding:0 5px}.angle-control input{min-width:0}.route-panel{right:316px;width:min(330px,calc(100% - 332px));max-height:calc(100% - 24px)}.view-hint{left:14px;top:14px;bottom:auto;max-width:calc(100% - 328px)}}
@media(max-width:620px) and (max-height:520px){.route-panel{right:12px;width:calc(100% - 24px);top:12px;max-height:calc(100% - 118px)}.view-hint{max-width:calc(100% - 28px)}}
@media(prefers-reduced-motion:reduce){.spinner{animation:none}}

/* The right-hand menu opens downwards; primary view controls stay visible. */
.control-dock {
  top: max(14px, env(safe-area-inset-top)); bottom: auto;
  right: max(14px, env(safe-area-inset-right)); width: 208px;
  max-height: calc(100% - 28px);
}
.control-dock > .menu-toggle { order: 0; }
.control-dock > .view-tools { order: 1; }
.control-dock > .toolbar {
  order: 2; display: flex; flex-direction: column;
  flex-shrink: 1; align-items: center; gap: 6px;
  width: 208px; max-height: 100%;
  transform-origin: top right; animation: open-down .16s ease-out;
}
.toolbar > .angle-control { width: 100%; flex-direction: column; white-space: normal; }
@keyframes open-down { from { opacity: 0; transform: translateY(-6px); } to { opacity: 1; transform: translateY(0); } }
@media(max-height:520px) {
  .control-dock { top: max(10px, env(safe-area-inset-top)); max-height: calc(100% - 20px); width: 208px; }
  .control-dock > .toolbar { padding: 6px; }
}
@media(prefers-reduced-motion:reduce) { .control-dock > .toolbar { animation: none; } }