:root{--bg: #0b0b0d;--panel: rgba(16, 16, 19, .86);--panel-border: rgba(255, 255, 255, .09);--ink: #e9e7e2;--ink-dim: #9b988f;--crimson: #7f141a;--glass-strong: rgba(10, 10, 12, .78);--glass-border: rgba(255, 255, 255, .14);--glass-border-strong: rgba(255, 255, 255, .22);--on-dark: #f7f6f2;--on-dark-muted: rgba(247, 246, 242, .64);--shadow-lg: 0 24px 64px -12px rgba(0, 0, 0, .55);--font-mono: "JetBrains Mono", ui-monospace, Menlo, monospace;--radius-md: 12px;--ease-out: cubic-bezier(.22, 1, .36, 1);--dur-base: .24s;--blur: saturate(1.4) blur(18px);--blur-sm: blur(8px)}.hotspot-anchor :where(button){font-family:inherit;border:none;background:none;color:inherit;cursor:pointer;padding:0}*{box-sizing:border-box}html,body,#root{height:100%}body{margin:0;font-family:Inter,system-ui,-apple-system,sans-serif;background:var(--bg);color:var(--ink);overflow:hidden}.app{display:grid;grid-template-columns:1fr 356px;grid-template-rows:56px 1fr;grid-template-areas:"topbar topbar" "viewer 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var(--ease-out)}.mode-btn:hover{color:var(--ink)}.mode-btn.is-active{background:var(--crimson);color:#fff}.mode-dot{width:13px;height:13px;border-radius:50%;border:1.5px solid currentColor;display:inline-block}.mode-dot.ring{border-width:2.5px}.btn{display:inline-flex;align-items:center;gap:8px;padding:8px 14px;border-radius:999px;border:1px solid var(--glass-border);background:#ffffff12;color:var(--on-dark);font:600 12.5px/1 Inter,sans-serif;cursor:pointer;transition:background var(--dur-base) var(--ease-out),transform var(--dur-base) var(--ease-out);white-space:nowrap}.btn:hover{background:#ffffff21}.btn:active{transform:scale(.97)}.btn.primary{background:var(--crimson);border-color:transparent}.btn.primary:hover{background:#96181f}.btn.ghost{background:transparent;border-color:var(--panel-border);color:var(--ink-dim)}.btn.ghost:hover{color:var(--ink);border-color:var(--glass-border)}.viewer{grid-area:viewer;position:relative;min-width:0;overflow:hidden}.pano-canvas{position:absolute;inset:0}.pano-canvas canvas{display:block;touch-action:none}.pano-canvas.is-grabbing canvas{cursor:grabbing}.pano-canvas canvas{cursor:grab}.pano-canvas.is-placing canvas{cursor:crosshair}.drop-veil{position:absolute;inset:0;z-index:30;display:flex;align-items:center;justify-content:center;background:#08080ab8;-webkit-backdrop-filter:var(--blur-sm);backdrop-filter:var(--blur-sm);border:2px dashed var(--glass-border);border-radius:18px;margin:12px;font:600 15px/1 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