:root{color-scheme:dark;font-family:system-ui,sans-serif;color:#ecedf6;background:#080b16}*{box-sizing:border-box}body{margin:0;min-height:100svh;background:radial-gradient(ellipse at 20% 75%,#142a5538,transparent 55%),radial-gradient(ellipse at 90% 30%,#601c3230,transparent 55%),#080b16}main{width:min(100%,1040px);margin:auto;padding:clamp(24px,6vh,64px) 24px max(24px,env(safe-area-inset-bottom))}h1{font-size:clamp(38px,6vw,68px);font-weight:500;letter-spacing:-.055em;margin:0 0 30px;line-height:1.1}h1 em{font-style:normal;background:linear-gradient(100deg,#648eff,#ef667e);background-clip:text;-webkit-background-clip:text;color:transparent}.tank{height:min(65svh,590px);min-height:280px;border:1px solid #33364d;border-radius:24px;overflow:hidden;background:linear-gradient(140deg,#101829,#0b101e);box-shadow:0 25px 80px #0005;touch-action:none}canvas{display:block;width:100%;height:100%;touch-action:none}.modes{display:flex;justify-content:center;gap:6px;width:fit-content;margin:20px auto 0;padding:5px;background:#111626;border:1px solid #2c3045;border-radius:16px}button{display:grid;place-items:center;width:64px;height:46px;border:1px solid transparent;border-radius:11px;background:transparent;color:#757e9c;cursor:pointer;touch-action:manipulation}button[aria-pressed=true]{background:#26314e;color:#ceddff;border-color:#53658e}button:hover{color:#eef1ff}button:focus-visible{outline:2px solid #a7bfff;outline-offset:3px}svg{width:30px;height:24px;stroke:currentColor;stroke-width:2;fill:none;stroke-linecap:round}svg g{fill:currentColor;stroke:none}@media(max-width:600px){main{padding:32px 16px 24px}h1{margin-bottom:24px}.tank{height:66svh;border-radius:20px}.modes{margin-top:16px}}

.gravity-control{display:flex;align-items:center;gap:12px;max-width:250px;margin:18px auto 0;color:#8f9bb9}.gravity-control svg{width:20px;height:20px;flex:none}.gravity-control input{width:100%;min-width:0;accent-color:#8799ff;cursor:pointer}.gravity-control input:focus-visible{outline:2px solid #a7bfff;outline-offset:4px}

.effects{display:flex;justify-content:center;gap:7px;margin:12px auto 0}.effects button{border-color:#2c3045;background:#111626}.effects button[aria-pressed=true]{background:#26314e;border-color:#53658e}.effects svg{width:25px;height:25px}

.auto-control{display:flex;justify-content:center;margin:22px 0 0}.auto-control button{display:flex;gap:10px;width:auto;padding:0 20px;background:#131a2b;border-color:#384360;color:#b3bed7}.auto-control button[aria-pressed=true]{background:#304466;border-color:#859ed3;color:#eff5ff}.auto-control span{font:500 14px system-ui}.auto-control svg{width:24px;height:24px}