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