body{margin:0}.app-layout{width:100%;min-height:100vh;position:relative}.controls{z-index:100;gap:8px;display:flex;position:absolute;top:10px;left:10px}.building-btn{color:#fff;cursor:pointer;background-color:#9ca3af;border:none;border-radius:6px;padding:8px 16px}.building-btn.active{background-color:#3b82f6}.building-btn:hover{background-color:#6b7280}.building-btn.active:hover{background-color:#2563eb}.floor-btn{color:#fff;cursor:pointer;background-color:#3b82f6;border:none;border-radius:6px;width:40px;height:40px}.floor-btn:hover{background-color:#2563eb}.center-header{z-index:200;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);text-align:center;color:#000;pointer-events:none;background:#ffffff50;border-radius:10px;padding:10px 24px;font-family:system-ui,-apple-system,sans-serif;position:absolute;top:10px;right:10px}.building-name{letter-spacing:.5px;font-size:1.2rem;font-weight:600}.floor-name{opacity:.9;font-size:.9rem}