.oscilloscope-workspace{background:radial-gradient(circle,#0f172a 0%,#020617 100%);border:1px solid #ffffff1a;position:relative;box-shadow:inset 0 0 40px #000c,0 10px 30px #00000080}canvas#water-canvas{-webkit-user-select:none;user-select:none;width:100%;height:100%;display:block}.shaker-hint{letter-spacing:-.02em;font-size:.9em;font-weight:500;animation:2s ease-in-out infinite pulse-hint}@keyframes pulse-hint{0%{opacity:.4;transform:translate(-50%)translateY(0)}50%{opacity:.9;text-shadow:0 0 10px #ffffff80;transform:translate(-50%)translateY(-5px)}to{opacity:.4;transform:translate(-50%)translateY(0)}}html,body{overscroll-behavior:none}