:root{--bg1:#16284a;--bg2:#2b1a4d;--ac:#ffd54a;--tw:52px;--th:150px}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent;-webkit-user-select:none;user-select:none;touch-action:manipulation}
html,body{margin:0;height:100%;overflow:hidden;font-family:system-ui,-apple-system,Roboto,"Noto Sans KR",sans-serif;color:#fff;background:linear-gradient(#16284a,#2b1a4d) fixed}
.screen{position:fixed;inset:0;display:none;flex-direction:column;align-items:center;padding:env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left)}
.screen.on{display:flex}
button{font:inherit;color:inherit;border:0;cursor:pointer}
.btn{background:var(--ac);color:#241a00;font-weight:800;border-radius:16px;padding:14px 26px;font-size:18px;min-height:48px}
.btn.sec{background:#ffffff26;color:#fff;font-weight:600}
.btn.sm{padding:10px 18px;font-size:15px;min-height:44px}
/* splash */
#splash{justify-content:center;background:#0b1226;z-index:30;gap:8px}
#splash .logo{font-size:min(11vw,46px);font-weight:900;letter-spacing:1px}#splash .logo span{color:var(--ac)}
#splash .sub{opacity:.75;font-size:15px}#splash .tag{opacity:.55;font-size:13px;margin-top:6px}
/* main */
#main{justify-content:center;gap:14px;text-align:center;padding-left:24px;padding-right:24px}
#main h1{font-size:min(9vw,40px);margin:0;font-weight:900}#main .brand{opacity:.7;font-size:14px;letter-spacing:2px;text-transform:uppercase}
#main .menu{display:flex;flex-direction:column;gap:12px;width:min(78vw,300px);margin-top:18px}
#main .prog{opacity:.7;font-size:14px;margin-top:4px}
.demo{display:flex;gap:8px;margin:8px 0}.demo i{display:block;width:26px;height:68px;border:3px solid #ffffffb0;border-top:0;border-radius:0 0 14px 14px;overflow:hidden;position:relative;font-style:normal}.demo i b{position:absolute;left:0;right:0}
/* topbar */
.bar{width:100%;max-width:560px;display:flex;align-items:center;justify-content:space-between;padding:8px 12px;gap:8px}
.bar .ttl{font-weight:800;font-size:16px;line-height:1.15}.bar .ttl small{display:block;font-weight:500;opacity:.7;font-size:12px}
.ibtn{background:#ffffff22;border-radius:12px;min-width:44px;height:44px;font-size:18px;display:flex;align-items:center;justify-content:center;padding:0 10px}
/* board */
#boardWrap{flex:1;width:100%;max-width:560px;display:flex;align-items:center;justify-content:center;min-height:0}
#board{display:flex;flex-wrap:wrap;justify-content:center;align-content:center;gap:var(--gy,22px) var(--gx,10px);width:100%;padding:6px}
.tube{width:var(--tw);height:var(--th);border:3px solid #ffffffb8;border-top:0;border-radius:0 0 calc(var(--tw)/2) calc(var(--tw)/2);display:flex;flex-direction:column-reverse;overflow:hidden;background:linear-gradient(90deg,#ffffff1f,#ffffff08);position:relative;transition:transform .18s,opacity .15s,box-shadow .15s,border-color .15s}
.tube.sel{transform:translateY(-18px);border-color:var(--ac);box-shadow:0 0 12px #ffd54a99}
.tube.okd{border-color:#7dff9b;box-shadow:0 0 10px #7dff9b88}.tube.dim{opacity:.45}
.tube.hintf{border-color:#7dff9b;box-shadow:0 0 16px #7dff9b;animation:pulse .8s infinite}.tube.hintt{border-color:#ff9bd0;box-shadow:0 0 16px #ff9bd0;animation:pulse .8s infinite}
@keyframes pulse{50%{filter:brightness(1.35)}}
.tube.done{border-color:#7dff9b}.tube.pour{z-index:6;transition:transform .34s cubic-bezier(.3,1.35,.5,1)}
.tube.wob{animation:wob .45s}@keyframes wob{0%{transform:none}30%{transform:scaleY(.96) skewX(2deg)}60%{transform:scaleY(1.02) skewX(-1.5deg)}100%{transform:none}}
.tube.shake{animation:shake .25s}@keyframes shake{25%{transform:translateX(-4px)}75%{transform:translateX(4px)}}
.l{height:25%;width:100%;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:calc(var(--tw)*.4);color:#0007;box-shadow:inset 0 2px 0 #ffffff40,inset 0 -2px 0 #0000001f;position:relative}
.l.q{background:#5a6180!important;color:#fffc}
.l.q::after{content:"?"}
.l .sym{font-size:calc(var(--tw)*.36);color:#000a;text-shadow:0 0 2px #fff8}
#stream{position:fixed;width:7px;border-radius:4px;transition:height .14s ease-out;background-image:linear-gradient(90deg,#ffffff55,#0000 45%,#0002);z-index:5;display:none;box-shadow:0 0 6px #fff6}
.dot{position:fixed;width:6px;height:6px;border-radius:50%;z-index:5;pointer-events:none;transition:all .35s ease-out}
.reduce *{transition-duration:.01s!important;animation-duration:.01s!important}
#msg{min-height:30px;text-align:center;font-size:14px;opacity:.9;padding:0 14px}
#tools{display:flex;gap:10px;padding:8px 12px 12px;width:100%;max-width:560px;justify-content:center}
#tools button{flex:1;max-width:130px;min-height:54px;border-radius:16px;background:#ffffff24;font-size:13px;font-weight:600;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px}
#tools button span.i{font-size:20px}#tools button:disabled{opacity:.35}
/* levels */
#grid{display:grid;grid-template-columns:repeat(5,1fr);gap:10px;padding:12px;width:100%;max-width:560px;overflow:auto;flex:1;align-content:start}
.lv{aspect-ratio:1;border-radius:14px;background:#ffffff22;display:flex;flex-direction:column;align-items:center;justify-content:center;font-weight:800;font-size:18px;position:relative;min-height:52px}
.lv small{font-size:10px;opacity:.9;letter-spacing:1px;height:12px}.lv.lock{opacity:.35}.lv.cur{outline:3px solid var(--ac)}.lv .mb{position:absolute;top:3px;right:5px;font-size:11px;color:var(--ac)}
/* settings */
.list{width:100%;max-width:560px;padding:6px 14px;overflow:auto;flex:1}
.row{display:flex;align-items:center;justify-content:space-between;padding:12px 4px;border-bottom:1px solid #ffffff1c;gap:10px;min-height:52px}
.row small{display:block;opacity:.6;font-size:12px}
.sw{width:50px;height:30px;border-radius:15px;background:#ffffff33;position:relative;flex:none}.sw::after{content:"";position:absolute;top:3px;left:3px;width:24px;height:24px;border-radius:50%;background:#fff;transition:left .15s}.sw.on{background:#41c97a}.sw.on::after{left:23px}
input[type=range]{width:46%;accent-color:var(--ac)}
.seg{display:flex;gap:6px}.seg button{padding:8px 14px;border-radius:12px;background:#ffffff22;font-weight:600;min-height:40px}.seg button.on{background:var(--ac);color:#241a00}
/* overlays */
.ov{position:fixed;inset:0;background:#000c;display:none;align-items:center;justify-content:center;flex-direction:column;gap:14px;text-align:center;padding:24px;z-index:20}
.ov.on{display:flex}.ov .card{background:#232b4f;border-radius:20px;padding:22px;max-width:min(92vw,420px);max-height:84vh;display:flex;flex-direction:column;gap:12px;align-items:stretch}
.ov h2{margin:0;font-size:22px}.ov p{margin:0;font-size:14px;line-height:1.55;opacity:.88}.ov .scroll{overflow:auto;text-align:left;white-space:pre-wrap;max-height:50vh;font-size:13px;line-height:1.55;opacity:.9}
.ov .btns{display:flex;gap:10px;justify-content:center;flex-wrap:wrap}
#winStars{font-size:34px;letter-spacing:4px}
@media (max-height:520px){.bar{padding:4px 10px}#tools button{min-height:44px}}

.spk{position:fixed;width:8px;height:8px;margin:-4px;background:#ffe27a;border-radius:2px;transform:rotate(45deg);z-index:7;pointer-events:none;transition:all .6s ease-out;box-shadow:0 0 6px #ffe27a}
.cf{position:fixed;top:-12px;width:9px;height:14px;z-index:60;pointer-events:none;animation:cf 2s linear forwards}
@keyframes cf{to{transform:translateY(105vh) rotate(720deg)}}
/* v0.2.1 visual polish */
.tube{background:linear-gradient(90deg,#ffffff33 0,#ffffff0d 30%,#ffffff05 70%,#ffffff22 100%);box-shadow:inset 0 0 8px #ffffff22,0 6px 10px #0004}
.tube::before{content:"";position:absolute;left:12%;top:4%;bottom:10%;width:14%;border-radius:8px;background:linear-gradient(#ffffff66,#ffffff00);z-index:3;pointer-events:none}
.l{background-image:linear-gradient(90deg,#ffffff38,#ffffff00 40%,#00000026);border-radius:0}
.l:last-child{box-shadow:inset 0 3px 0 #ffffff80,inset 0 -2px 0 #0000001f}
.tube.done{box-shadow:0 0 14px #7dff9b99,inset 0 0 8px #ffffff33;animation:glow 1.6s ease-in-out infinite}
@keyframes glow{50%{box-shadow:0 0 22px #7dff9bcc,inset 0 0 10px #ffffff44}}
.tube.sel{transform:translateY(-22px) scale(1.04)}
.tube{transition:transform .22s cubic-bezier(.3,1.5,.5,1),opacity .15s,box-shadow .15s,border-color .15s}
.combo{position:fixed;transform:translate(-50%,0);font-weight:900;font-size:20px;color:#ffe27a;text-shadow:0 2px 0 #b36b00,0 0 10px #ffb300;z-index:8;pointer-events:none;animation:cmb .9s ease-out forwards;white-space:nowrap}
@keyframes cmb{0%{opacity:0;transform:translate(-50%,10px) scale(.6)}25%{opacity:1;transform:translate(-50%,-8px) scale(1.25)}100%{opacity:0;transform:translate(-50%,-48px) scale(1)}}
#winInfo{white-space:pre-line}