.page-heading{display:flex;align-items:center;justify-content:space-between;gap:12px;margin:32px 0 26px}.game-title{display:flex;align-items:center;gap:14px}.eyebrow{font-size:10px;font-weight:800;letter-spacing:2px;color:#957042}h1{font-size:32px;letter-spacing:-1.3px;margin:4px 0 0}.back-link{font-size:14px;color:#53627b;text-decoration:none;white-space:nowrap}.game{display:grid;grid-template-columns:320px minmax(0,1fr);gap:28px;margin-bottom:40px}.controls{border:1px solid #eee2d2;border-radius:18px;padding:30px 25px;background:#fffcf7}h2{font-size:28px;line-height:1.45;letter-spacing:-1.3px;margin:12px 0}.intro{font-size:14px;line-height:1.8;color:#7c715f;margin:0 0 25px}.scores{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:25px 0}.scores>div{padding:16px 10px;background:white;border:1px solid #e8decd;border-radius:12px;text-align:center;min-width:0}.scores span{display:block;font-size:12px;color:#7d715f}.scores strong{display:block;font-size:27px;color:#674d30;margin-top:6px;overflow-wrap:anywhere}.progress-label{display:flex;justify-content:space-between;font-size:11px;color:#7d715f;gap:8px}.progress-label b{color:#87561f}progress{width:100%;height:7px;appearance:none;border:0;border-radius:9px;margin:12px 0 25px;overflow:hidden;background:#ede4d6}progress::-webkit-progress-bar{background:#ede4d6}progress::-webkit-progress-value{background:#cb9550;border-radius:9px}progress::-moz-progress-bar{background:#cb9550}.actions{display:grid;gap:9px}button{border:1px solid #dfd4c3;border-radius:9px;background:#fff;color:#705335;padding:12px 15px;font-size:13px;font-weight:700;touch-action:manipulation}button.primary{background:#96622f;border-color:#96622f;color:#fff}button:hover:not(:disabled){filter:brightness(.94)}button:disabled{opacity:.45;cursor:default}.note{text-align:center;font-size:11px;line-height:1.8;color:#827764;margin:16px 0 0}.mini-tiles{display:flex;justify-content:center;align-items:center;gap:10px;margin-top:30px}.mini-tiles span{display:grid;place-items:center;width:42px;height:42px;border-radius:8px;background:#f1e7d6;color:#7c6140;font-size:20px;font-weight:800}.mini-tiles span:last-child{background:#e9d7b2}.mini-tiles i{font-style:normal;color:#b3a38a}.play-area{border-radius:18px;background:#f8f6f1;padding:26px 30px;display:flex;flex-direction:column;align-items:center;justify-content:center;min-width:0}.status-wrap{text-align:center;min-height:70px}#status{color:#66553f;font-size:16px;font-weight:700;margin:9px 0 18px;word-break:keep-all}.board-frame{position:relative;width:100%;max-width:424px;padding:12px;background:#b9aa94;box-shadow:0 6px 0 #a59782,0 15px 25px #6a512416;border-radius:15px}.board{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px;touch-action:none;user-select:none;border-radius:5px}.board:focus-visible{outline:3px solid #87561f;outline-offset:16px}.tile{aspect-ratio:1;display:grid;place-items:center;border-radius:8px;background:#cfc4b3;color:#62523e;font-family:Arial,sans-serif;font-size:clamp(25px,3.3vw,43px);font-weight:800;font-variant-numeric:tabular-nums}.tile.filled{box-shadow:0 2px 2px #6b542414}.v2{background:#f6eee2}.v4{background:#eee0c4}.v8{background:#eeb777;color:#533919}.v16{background:#eb995e;color:#4c2d18}.v32{background:#dc7955;color:#fff}.v64{background:#bd5137;color:#fff}.v128{background:#e2bf5b;color:#513d15;font-size:34px}.v256{background:#d9af44;color:#48330b;font-size:34px}.v512{background:#c89528;color:#382805;font-size:34px}.v1024{background:#9e751a;color:#fff;font-size:29px}.v2048{background:#79551a;color:#fff;font-size:29px}.small-number{font-size:18px;overflow-wrap:anywhere}.board-help{color:#837763;margin:23px 0 13px;font-size:12px;text-align:center}.direction-pad{display:flex;gap:8px}.direction-pad button{width:46px;height:44px;padding:0;font-size:22px;background:#fffdf8}.result{position:absolute;inset:0;background:#fff8e9ed;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;border-radius:15px;text-align:center;padding:20px}.result p{font-size:27px;font-weight:900;letter-spacing:-1px;color:#704c25;margin:0}.result span{font-size:14px;color:#7d694e;margin-bottom:6px}.guide{grid-column:1/-1;border:1px solid #e8e1d5;border-radius:13px;padding:18px 23px}.guide summary{font-size:14px;font-weight:700;cursor:pointer}.tips{display:grid;grid-template-columns:repeat(3,1fr);gap:30px}.tips p{font-size:13px;line-height:1.8;color:#7c715f;margin:18px 0 0}.tips b{display:block;color:#79582f;margin-bottom:5px}dialog{border:1px solid #e8e1d5;border-radius:16px;padding:26px;max-width:calc(100vw - 36px)}dialog::backdrop{background:#101b3070}dialog h2{font-size:22px}dialog p{font-size:14px;color:#7c715f}.dialog-actions{display:flex;gap:10px;justify-content:flex-end;margin-top:25px}[hidden]{display:none!important}
@media(prefers-reduced-motion:no-preference){.tile.new{animation:appear .16s ease-out}.tile.merged{animation:merge .18s ease-out}@keyframes appear{from{transform:scale(.5);opacity:.3}to{transform:scale(1);opacity:1}}@keyframes merge{50%{transform:scale(1.08)}}}
@media(max-width:850px){.game{grid-template-columns:260px minmax(0,1fr);gap:18px}.controls{padding:23px 18px}h2{font-size:25px}.play-area{padding:22px 17px}.board-frame{padding:9px}.board{gap:7px}.tile{font-size:33px}.v128,.v256,.v512{font-size:28px}.v1024,.v2048{font-size:23px}.small-number{font-size:18px}}
@media(max-width:650px){h1{font-size:24px}.game-title{gap:9px}.game-title img{width:43px;height:45px}.page-heading{gap:8px;margin:25px 0 20px}.back-link{font-size:12px}.game{grid-template-columns:1fr;gap:16px}.controls{padding:18px}.controls>.eyebrow,.controls>h2,.intro,.mini-tiles,.progress-label,progress{display:none}.scores{margin:0 0 13px}.scores>div{padding:10px}.scores strong{font-size:24px;margin-top:3px}.actions{grid-template-columns:1fr 1fr}.note{margin-top:10px;font-size:10px}.play-area{padding:22px 13px}.board-frame{max-width:390px}.tile{font-size:clamp(27px,8vw,40px)}.v128,.v256,.v512{font-size:clamp(24px,7vw,34px)}.v1024,.v2048{font-size:clamp(21px,6vw,29px)}.small-number{font-size:18px}.status-wrap{min-height:64px}.board-help{font-size:10px}.result p{font-size:24px}.tips{grid-template-columns:1fr;gap:0}.guide{padding:17px}}