:root{font-family:'Outfit','Noto Sans KR',sans-serif;color:#173e49;background:#f3f9fc;font-synthesis:none}*{box-sizing:border-box}body{margin:0}button,a{-webkit-tap-highlight-color:transparent}button{font:inherit;cursor:pointer;color:inherit;border:0}button:disabled{opacity:.38;cursor:default}button:focus-visible,a:focus-visible,#board:focus-visible{outline:3px solid #7385df;outline-offset:3px}.shell{width:100%;margin:auto;box-sizing:border-box}header{display:flex;align-items:center;justify-content:space-between}.back{text-decoration:none;font-size:13px;color:#567882}.edition{font-size:10px;letter-spacing:2px;color:#688894}.icon{border:1px solid #d7e7ed;background:transparent;width:30px;height:30px;border-radius:50%}.intro{text-align:center;margin:28px 0 22px}.eyebrow{font-size:10px;letter-spacing:2.4px;color:#57838e;font-weight:700}h1{font-size:44px;letter-spacing:-3px;line-height:1.2;margin:10px 0 12px;font-weight:900}.logo{display:inline-flex;align-items:center;justify-content:center;width:39px;height:39px;background:#c0f0e6;color:#087f80;border-radius:13px;transform:rotate(-10deg);font-size:35px;margin-left:12px;vertical-align:5px;letter-spacing:0}.intro p{font-size:13px;color:#65818b;margin:0}.intro strong{color:#087f80}.modes{display:flex;margin:0 auto 22px;padding:4px;background:#e4f0f5;border-radius:30px;width:max-content;gap:4px}.modes button{background:transparent;border-radius:24px;padding:9px 23px;font-size:12px}.modes button[aria-pressed=true]{background:#fff;box-shadow:0 2px 6px #173e4910;font-weight:700}.game{background:#fff;border:1px solid #d9e9ef;padding:22px;border-radius:25px;box-shadow:0 12px 35px #17485808}.stats{display:flex;justify-content:space-between;text-align:center;padding:0 10px 17px}.stats>div{min-width:80px}.stats span{display:block;font-size:10px;letter-spacing:.3px;color:#65838d;margin-bottom:4px}.stats strong{font-size:29px;font-variant-numeric:tabular-nums}.stats small{font-size:13px;font-weight:500;color:#78939d}.clock strong{color:#078b8c}.timer-track{height:4px;background:#e4f1f5;border-radius:4px;margin-bottom:20px;overflow:hidden}#timer-bar{background:#32bcb5;height:100%;width:100%;transition:width .15s}.board-wrap{position:relative;border-radius:13px;overflow:hidden;background:#eef6fa}#board{display:grid;grid-template-columns:repeat(var(--columns, 10),1fr);gap:7px;padding:12px;touch-action:none;user-select:none;outline-offset:-3px}.cell{--jelly-top:#d6fff2;--jelly-bottom:#8bd7c8;--jelly-edge:#59bda9;--jelly-shape:48% 48% 44% 16%;aspect-ratio:1;position:relative;isolation:isolate;display:flex;align-items:center;justify-content:center;background:transparent;border-radius:8px;font-size:23px;font-weight:700;color:#17615f;transition:background .12s,transform .12s;text-shadow:0 1px 0 #ffffff70}
.cell::before{content:'';position:absolute;inset:4% 5% 7%;z-index:-1;border-radius:var(--jelly-shape);background:linear-gradient(145deg,var(--jelly-top),var(--jelly-bottom));border:1px solid var(--jelly-edge);box-shadow:inset 0 2px 2px #ffffffb0,inset 0 -3px 3px #207b7d16,0 2px 1px #276d7714;pointer-events:none;transition:transform .16s,background .16s}
.cell::after{content:'';position:absolute;width:19%;height:8%;top:18%;left:23%;border-radius:50%;background:#ffffffba;transform:rotate(-35deg);pointer-events:none}
.cell:nth-child(3n){--jelly-shape:48% 16% 44% 48%}
.cell:nth-child(5n){--jelly-shape:20% 48% 48% 44%}
.cell[data-value="1"],.cell[data-value="2"],.cell[data-value="3"]{--jelly-top:#e2f5ff;--jelly-bottom:#a6d6f3;--jelly-edge:#81badb;color:#2d628b}
.cell[data-value="7"],.cell[data-value="8"],.cell[data-value="9"]{--jelly-top:#cff6fa;--jelly-bottom:#88cddc;--jelly-edge:#5fb0c3;color:#215c73}
.cell.empty{color:transparent;text-shadow:none}
.cell.empty::before,.cell.empty::after{display:none}
.cell.selected{background:#e4e8fb;box-shadow:inset 0 0 0 1.5px #929fdd}
.cell.selected::before{transform:scale(.9)}
.cell.selected.valid{background:#d0f5e9;box-shadow:inset 0 0 0 2px #1da896;--jelly-top:#bcffdf;--jelly-bottom:#6dd6b4;--jelly-edge:#28ab89;color:#095c4c}
.cell.hinted{background:#eee8ff;box-shadow:inset 0 0 0 2px #9c8adc}
.cell.cursor{outline:2px solid #087f80;outline-offset:-2px}.cover{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;flex-direction:column;text-align:center;background:#f2f9fded;backdrop-filter:blur(4px);padding:20px}.cover[hidden]{display:none}.cover-symbol{font-size:60px;font-weight:800;letter-spacing:-5px;color:#087f80;position:relative;margin-bottom:12px}.cover-symbol span{font-size:26px;position:absolute;top:4px;right:-22px;color:#55bcb4}h2{font-size:20px;letter-spacing:-.8px;margin:8px 0}.cover p{font-size:12px;line-height:1.9;color:#597e89;margin:6px 0 22px}.primary{background:#087f80;color:white;border-radius:13px;padding:14px 25px;font-size:13px;min-width:165px}.primary span{margin-left:30px}.primary:hover{background:#06666f}.selection-info{display:flex;align-items:center;justify-content:space-between;gap:10px;min-height:54px;font-size:11px;color:#5e7f8b}.sum-pill{white-space:nowrap;background:#edf5f9;padding:7px 10px;border-radius:8px}.sum-pill b{font-size:17px;margin-left:5px;color:#087f80}.sum-pill>span{color:#718b98}.tools{display:flex;border-top:1px solid #e4eef3;padding-top:15px;gap:8px}.tools button{flex:1;background:#eff6fa;border-radius:10px;font-size:12px;padding:11px 0}.tools button span{font-size:10px;background:#cfede8;padding:2px 5px;border-radius:5px;margin-left:4px}footer{font-size:10px;text-align:center;color:#6e8b97;line-height:1.8;margin-top:19px}.tip-mark{font-size:9px;color:#258b8e;margin-right:6px;font-weight:700}.keyboard{margin-top:7px;font-size:9px;opacity:.7}dialog{border:1px solid #d7e7ed;border-radius:22px;max-width:380px;width:calc(100% - 36px);padding:28px;color:#173e49}dialog::backdrop{background:#163d5060;backdrop-filter:blur(3px)}dialog p{font-size:13px;line-height:1.9;color:#5e7f8b}.dialog-close{position:absolute;top:10px;right:15px;background:none;font-size:24px}.example{display:flex;align-items:center;gap:9px;margin:22px 0}.example span{background:#d0eee9;border-radius:8px;padding:10px 15px;font-size:22px}.example b{margin-left:6px;font-size:22px}@media(min-width:750px){.cell{font-size:24px}}@media(max-width:480px){.shell{padding:16px 14px}.edition{font-size:8px;letter-spacing:1.4px}.intro{margin:21px 0 17px}h1{font-size:37px}.logo{width:32px;height:32px;font-size:29px}.game{padding:13px;border-radius:20px}.modes{margin-bottom:16px}.stats{padding-bottom:12px}.stats strong{font-size:25px}.timer-track{margin-bottom:12px}#board{gap:5px;padding:8px}.cell{font-size:20px;border-radius:7px}.selection-info{font-size:10px;min-height:50px}.tools{padding-top:11px}.keyboard{display:none}footer{font-size:9px}.intro p{font-size:11px}}@media(prefers-reduced-motion:reduce){*{transition:none!important}}

:root{font-family:'Segoe UI','Malgun Gothic',sans-serif}.shell{padding-top:18px}.intro{margin:16px 0 14px}h1{font-size:34px;margin:7px 0 8px}.logo{width:32px;height:32px;font-size:29px}.modes{margin-bottom:14px}.game{padding:14px}.stats{padding-bottom:10px}.stats strong{font-size:25px}.timer-track{margin-bottom:12px}#board{gap:5px;padding:8px}.cell{font-size:21px;border-radius:8px}.tools{padding-top:10px}.selection-info{min-height:46px}footer{margin-top:12px}@media(max-width:480px){.shell{padding-top:12px}.intro{margin:12px 0}.intro .eyebrow{display:none}h1{font-size:30px}.modes{margin-bottom:10px}.modes button{padding:7px 19px}.cell{font-size:19px}.stats strong{font-size:23px}.tools button{padding:9px 0}.game{padding:11px}.stats span{font-size:9px}footer{margin-top:8px}}@media(max-height:740px){.intro p,.edition,footer{display:none}.intro{margin:7px 0}.shell{padding-top:8px}header{height:26px}.modes{margin-bottom:8px}.stats{padding-bottom:7px}.timer-track{margin-bottom:8px}.selection-info{min-height:38px}.game{padding:9px}h1{font-size:27px;margin:5px 0}.logo{width:27px;height:27px;font-size:25px}#board{gap:4px;padding:6px}}


/* A matching droplet mark carries the game identity beyond the board. */
.logo{border-radius:48% 48% 44% 16%;background:linear-gradient(145deg,#d6fff2,#8bd7c8);border:1px solid #69c9b6;box-shadow:inset 0 2px 2px #ffffffb0,0 2px 1px #276d7714}
.cover-symbol{display:flex;align-items:center;justify-content:center;width:clamp(44px,8.5vh,64px);height:clamp(44px,8.5vh,64px);background:linear-gradient(145deg,#d6fff2,#8bd7c8);border:1px solid #69c9b6;border-radius:48% 48% 44% 16%;box-shadow:inset 0 4px 5px #ffffffb0,0 8px 18px #278c7f12;font-size:clamp(22px,4.2vh,32px);letter-spacing:-2px;margin-bottom:clamp(4px,0.9vh,8px)}
.cover-symbol span{top:2px;right:4px;color:#168d81;font-size:clamp(12px,2.2vh,16px);letter-spacing:0}
.example span{border-radius:48% 48% 44% 16%;background:linear-gradient(145deg,#d6fff2,#8bd7c8);border:1px solid #69c9b6;box-shadow:inset 0 2px 2px #ffffffb0}