#zoom-debug{position:absolute;bottom:12px;left:12px;padding:6px 10px;font:14px/1.4 ui-monospace,monospace;color:#ffffffe6;background:#00000080;border-radius:6px;pointer-events:none;user-select:none}#share-notification{position:fixed;top:50%;left:50%;transform:translate(-50%,-50%);background:#000000d9;color:#4ade80;padding:16px 32px;border-radius:8px;font-family:system-ui,sans-serif;font-size:16px;z-index:1000;opacity:0;transition:opacity .3s ease;pointer-events:none;text-align:center}#share-notification .notification-title{font-size:18px;font-weight:700}#share-notification .notification-subtitle{color:#aaa;font-size:14px}#share-notification .notification-hint{color:#aaa;font-size:12px}#fps-overlay{position:fixed;bottom:12px;right:12px;background:#0009;color:#888;padding:4px 8px;border-radius:4px;font-family:ui-monospace,monospace;font-size:12px;pointer-events:none;z-index:100}#help-overlay{position:fixed;top:50%;left:50%;transform:translate(-50%,-50%);background:#000000eb;color:#e5e5e5;padding:24px 32px;border-radius:12px;font-family:system-ui,-apple-system,sans-serif;font-size:14px;z-index:1001;opacity:0;transition:opacity .2s ease;pointer-events:none;max-width:90vw;max-height:90vh;overflow-y:auto;box-shadow:0 8px 32px #00000080;border:1px solid rgba(255,255,255,.1)}#help-overlay.visible{opacity:1;pointer-events:auto}#help-overlay .help-title{margin:0 0 16px;color:#60a5fa;font-size:20px;font-weight:600}#help-overlay .help-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:8px 32px}#help-overlay .help-section{margin-bottom:12px}#help-overlay .help-section-title{margin:0 0 8px;color:#a78bfa;font-size:13px;text-transform:uppercase;font-weight:600}#help-overlay .help-section-content{display:grid;gap:4px}#help-overlay .help-row{display:flex;align-items:baseline;gap:8px}#help-overlay .help-key{background:#ffffff1a;color:#f0f0f0;padding:2px 8px;border-radius:4px;font-family:ui-monospace,monospace;font-size:12px;min-width:60px;text-align:center}#help-overlay .help-description{color:#ccc}#help-overlay .help-note{color:#888;font-size:10px;margin-top:4px}#help-overlay .help-footer{margin-top:12px;padding-top:12px;border-top:1px solid rgba(255,255,255,.1);color:#888;font-size:12px;text-align:center}#help-overlay kbd{background:#ffffff1a;padding:2px 6px;border-radius:4px}@media(max-width:600px){#help-overlay{padding:16px 20px;font-size:13px}#help-overlay .help-grid{grid-template-columns:1fr;gap:4px 16px}#help-overlay .help-title{font-size:18px}#share-notification{padding:12px 24px;font-size:14px;max-width:90vw}}