.fish-tank{width:100%;height:100%;max-height:100vh;position:fixed;top:0;left:0;overflow:hidden}#fish-canvas{z-index:-1;pointer-events:none}.ripple-ring{-webkit-backdrop-filter:blur(2px)brightness(1.1)contrast(1.1)url(#ripple-filter);pointer-events:none;z-index:0;border:2px solid #fff9;border-radius:50%;position:absolute;transform:translate(-50%,-50%);box-shadow:inset 0 0 40px #ffffff4d,0 20px 40px #0000001a}