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button{flex:1;margin:0;border-radius:0;background:transparent;color:#888;padding:12px;font-size:14px;border-bottom:2px solid transparent}.mobile-tabs button.active{color:#eee;background:#1f1f1f;border-bottom-color:#4a7aff}.mobile-tabs button:hover{background:#1f1f1f}@media (max-width: 720px){.layout{grid-template-columns:1fr;grid-template-rows:1fr;gap:0}.left-column{max-height:none}.preview{padding:8px;touch-action:pan-x pan-y pinch-zoom}.kbd-help{display:none}.mobile-tabs{display:flex}.mobile-warning{display:block}body.mode-controls .preview,body.mode-preview .left-column{display:none}body.mode-preview .mobile-random{display:block}}