:root{--bg:#f4f5f7;--ink:#1f2937;--ink-soft:#6b7280;--ink-faint:#9ca3af;--panel:#ffffffb8;--border:#1118271a;--accent:#2563eb;--radius:10px;--shadow:0 1px 3px #11182714, 0 8px 24px #1118270f;font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Noto Sans,Ubuntu,Cantarell,Helvetica Neue,sans-serif}*{box-sizing:border-box;margin:0;padding:0}html,body{height:100%}body{background:var(--bg);color:var(--ink);overflow:hidden}#app{position:fixed;top:0;bottom:0;left:0;right:0}#scene{width:100%;height:100%;display:block}#title,#stats,#layers,#filmstrip{z-index:10;position:fixed}#title{pointer-events:none;top:24px;left:28px}#title h1{letter-spacing:-.01em;font-size:20px;font-weight:650}#title p#subtitle{letter-spacing:.14em;text-transform:uppercase;color:var(--ink-faint);margin-top:2px;font-size:11px}#dataset{pointer-events:auto;cursor:pointer;background:var(--panel);border:1px solid var(--border);color:var(--ink);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);box-shadow:var(--shadow);border-radius:8px;margin-top:10px;padding:6px 10px;font-family:inherit;font-size:12px}#dataset:hover{border-color:var(--ink-faint)}#credit{max-width:240px;color:var(--ink-faint);margin-top:8px;font-size:10px;line-height:1.4}#stats{pointer-events:none;flex-direction:column;gap:6px;display:flex;top:24px;right:28px}.stat{background:var(--panel);border:1px solid var(--border);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);box-shadow:var(--shadow);border-radius:8px;justify-content:space-between;gap:24px;min-width:150px;padding:7px 12px;display:flex}.stat dt{letter-spacing:.1em;text-transform:uppercase;color:var(--ink-faint);font-size:10px}.stat dd{font-variant-numeric:tabular-nums;font-size:13px;font-weight:600}#layers{flex-direction:column;align-items:flex-end;gap:6px;display:flex;bottom:24px;right:28px}.layer-btn{cursor:pointer;background:var(--panel);border:1px solid var(--border);color:var(--ink-soft);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);box-shadow:var(--shadow);border-radius:8px;align-items:center;gap:9px;padding:7px 13px;font-size:12px;transition:color .15s,border-color .15s,background .15s;display:flex}.layer-btn:hover{color:var(--ink)}.layer-btn.active{color:var(--ink);border-color:#2563eb66}.layer-btn .dot{background:var(--ink-faint);border-radius:50%;width:8px;height:8px}.layer-btn.active .dot-cloud{background:#6366f1}.layer-btn.active .dot-cams{background:#2563eb}.layer-btn.active .dot-photos{background:#db2777}.layer-btn.active .dot-tracks{background:#10b981}.layer-btn.active .dot-grid{background:#9ca3af}#filmstrip{align-items:flex-end;gap:6px;max-width:calc(100vw - 240px);padding-bottom:4px;display:flex;bottom:24px;left:28px;overflow-x:auto}.thumb{cursor:pointer;background:var(--panel);width:60px;height:45px;box-shadow:var(--shadow);border:2px solid #0000;border-radius:6px;flex-shrink:0;padding:0;transition:transform .15s,border-color .15s;overflow:hidden}.thumb img{object-fit:cover;width:100%;height:100%;display:block}.thumb:hover{border-color:var(--ink-faint);transform:translateY(-3px)}.thumb.active{border-color:var(--accent);transform:translateY(-5px)}#lightbox{z-index:100;-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px);background:#f4f5f7b8;flex-direction:column;justify-content:center;align-items:center;gap:14px;display:none;position:fixed;top:0;bottom:0;left:0;right:0}#lightbox.open{display:flex}#lightbox img{border-radius:10px;max-width:86vw;max-height:78vh;box-shadow:0 12px 48px #11182740}#lightbox-label{letter-spacing:.08em;text-transform:uppercase;color:var(--ink-soft);font-size:12px}#lightbox-close{color:var(--ink-soft);cursor:pointer;background:0 0;border:none;font-size:24px;line-height:1;position:absolute;top:22px;right:28px}#lightbox-close:hover{color:var(--ink)}#lightbox-nav{gap:10px;display:flex}.lb-btn{background:var(--panel);border:1px solid var(--border);color:var(--ink-soft);cursor:pointer;box-shadow:var(--shadow);border-radius:7px;padding:7px 18px;font-size:13px;transition:color .15s}.lb-btn:hover{color:var(--ink)}#loading{z-index:200;background:var(--bg);flex-direction:column;justify-content:center;align-items:center;gap:18px;transition:opacity .5s;display:flex;position:fixed;top:0;bottom:0;left:0;right:0}#loading.hidden{opacity:0}#loading p{letter-spacing:.14em;text-transform:uppercase;color:var(--ink-faint);font-size:11px}.spinner{border:2px solid var(--border);border-top-color:var(--accent);border-radius:50%;width:28px;height:28px;animation:.8s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}.err-title{color:var(--ink);margin:0;font-size:16px;font-weight:600}.err-detail{color:var(--ink-faint);text-transform:none;letter-spacing:0;margin:0;font-size:13px}.err-cmd{background:var(--border);color:var(--ink);-webkit-user-select:all;user-select:all;border-radius:6px;padding:8px 12px;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:12px}@media (max-width:640px){#stats{display:none}#filmstrip{max-width:calc(100vw - 56px)}}