.merge-page{min-height:calc(100vh - 67px);padding:34px 18px 48px;background:radial-gradient(circle at 15% 0,#384b8b 0,transparent 48%),#10182f;color:#eef2ff;font-family:system-ui,sans-serif}.merge-page *{box-sizing:border-box}.merge-wrap{max-width:900px;margin:0 auto}.merge-header{display:flex;align-items:center;justify-content:space-between;gap:18px;margin-bottom:25px}.merge-eyebrow{font-size:11px;font-weight:800;letter-spacing:.2em;color:#fbbf24}.merge-header h1{margin:6px 0;font-size:clamp(30px,6vw,46px);letter-spacing:.04em;line-height:1.35}.merge-header p{margin:0;color:#b5c1df;font-size:14px}.merge-back{color:#d7def5;font-size:12px;text-decoration:underline;text-underline-offset:4px;white-space:nowrap}.merge-layout{display:grid;grid-template-columns:minmax(300px,640px) 210px;gap:18px;align-items:start}.merge-play{border:1px solid #354574;border-radius:8px;padding:clamp(14px,3vw,26px);background:#1d2949;box-shadow:0 22px 60px #05091466}.merge-score-row{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-bottom:14px}.merge-score-row div{display:flex;align-items:center;justify-content:space-between;padding:9px 13px;border-radius:8px;background:#131d38}.merge-score-row span{color:#aebbd9;font-size:12px}.merge-score-row strong{color:#fbbf24;font-size:20px}.merge-board{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;aspect-ratio:1;padding:8px;border-radius:8px;background:#111a31;touch-action:none}.merge-cell{display:grid;place-items:center;min-width:0;min-height:0;border-radius:8px;background:#2a375c;color:#8392bb;font-size:clamp(22px,7vw,45px);font-weight:900}.merge-tile{color:#fff;background:#6474a9;box-shadow:inset 0 -3px 0 #0002;animation:merge-appear .16s ease-out}.merge-v2{background:#6474a9}.merge-v4{background:#7c83bf}.merge-v8{background:#fb923c}.merge-v16{background:#f97316}.merge-v32{background:#ef4444}.merge-v64{background:#dc2626}.merge-v128{background:#c026d3;font-size:clamp(19px,6vw,38px)}.merge-v256{background:#9333ea;font-size:clamp(19px,6vw,38px)}.merge-v512{background:#2563eb;font-size:clamp(19px,6vw,38px)}.merge-v1024,.merge-v2048{background:#d97706;font-size:clamp(17px,5.3vw,34px)}.merge-v2048{background:#fbbf24;color:#351b05;box-shadow:inset 0 -3px 0 #a16207,0 0 22px #fbbf2466}@keyframes merge-appear{from{opacity:0;transform:scale(.65)}to{opacity:1;transform:scale(1)}}.merge-touch{display:none;grid-template-columns:repeat(3,1fr);gap:8px;margin-top:12px}.merge-touch button{grid-column:2;border:1px solid #40527f;border-radius:8px;padding:10px;background:#26365e;color:#eef2ff;font:inherit;font-weight:800;touch-action:manipulation}.merge-touch button:nth-child(2){grid-column:1;grid-row:2}.merge-touch button:nth-child(3){grid-column:2;grid-row:2}.merge-touch button:nth-child(4){grid-column:3;grid-row:2}.merge-message{min-height:1.5em;margin:15px 0 0;color:#b5c1df;font-size:12px;text-align:center}.merge-side{display:flex;flex-direction:column;gap:10px}.merge-panel{padding:13px;border:1px solid #354574;border-radius:8px;background:#182440e8}.merge-actions{display:grid;gap:8px}.merge-button{min-height:40px;border:1px solid #40527f;border-radius:8px;padding:8px 11px;background:#26365e;color:#eef2ff;font:inherit;font-size:12px;font-weight:800;cursor:pointer}.merge-button:hover:not(:disabled),.merge-button:focus-visible{border-color:#fbbf24;outline:none}.merge-button:disabled{cursor:not-allowed;opacity:.4}.merge-primary{border-color:#fbbf24;background:#fbbf24;color:#351b05}.merge-sound h2,.merge-help h2{margin:0 0 9px;color:#aebbd9;font-size:11px;letter-spacing:.1em}.merge-sound>div{display:grid;grid-template-columns:1fr 1fr;gap:7px}.merge-sound .merge-button{padding:6px 3px}.merge-sound label{display:grid;gap:4px;margin-top:10px;color:#aebbd9;font-size:11px}.merge-sound input{width:100%;accent-color:#fbbf24}.merge-help ol{margin:0;padding-left:19px;color:#b5c1df;font-size:11px;line-height:1.75}.merge-note{margin:15px 0 0;color:#8291b5;font-size:11px;text-align:center}.merge-result{position:fixed;z-index:20;inset:0;display:grid;place-items:center;padding:20px;background:#071025cc}.merge-result[hidden]{display:none}.merge-result-box{width:min(360px,100%);padding:28px;border:1px solid #4c5f91;border-radius:8px;background:#1d2949;text-align:center;box-shadow:0 20px 70px #0008}.merge-result-box h2{margin:7px 0;color:#fbbf24;font-size:28px}.merge-result-box p{margin:0 0 20px;color:#b5c1df;font-size:13px}@media(max-width:720px){.merge-page{padding:22px 10px 38px}.merge-header{align-items:flex-start}.merge-layout{display:block}.merge-side{display:grid;grid-template-columns:1fr 1fr;margin-top:10px}.merge-actions,.merge-help{grid-column:1/-1}.merge-touch{display:grid}.merge-header p{font-size:13px}}@media(max-width:440px){.merge-board{gap:5px;padding:5px}.merge-score-row strong{font-size:17px}.merge-cell{font-size:clamp(20px,10vw,38px)}}
.merge-page section{margin-bottom:10px}.merge-intro{margin-bottom:12px;padding:11px 13px;border:1px solid #40527f;border-radius:8px;background:#17213e;color:#dce5ff;font-size:12px}.merge-intro strong{color:#fbbf24}.merge-intro ol{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin:7px 0 0;padding:0;list-style-position:inside;color:#c9d4ef}.merge-board{grid-template-columns:repeat(4,minmax(0,1fr));grid-template-rows:repeat(4,minmax(0,1fr))}.merge-cell{aspect-ratio:1;overflow:hidden}.merge-legend{display:flex;justify-content:center;flex-wrap:wrap;gap:10px 18px;margin:10px 0 0;color:#b5c1df;font-size:11px}.merge-legend span{display:inline-flex;align-items:center;gap:5px}.merge-legend i{display:inline-block;width:12px;height:12px;border-radius:3px;background:#6474a9}.merge-legend-new{outline:2px solid #fef3c7;outline-offset:1px}.merge-legend-merged{box-shadow:0 0 0 2px #fbbf24}.merge-new{outline:3px solid #fef3c7;outline-offset:-3px;animation:merge-new .35s ease-out}.merge-merged{box-shadow:inset 0 -3px 0 #0002,0 0 0 3px #fbbf24}@keyframes merge-new{from{opacity:.3;transform:scale(.55)}to{opacity:1;transform:scale(1)}}.merge-moved{animation-duration:.24s;animation-timing-function:ease-out;animation-fill-mode:both}.merge-from-left{animation-name:merge-move-left}.merge-from-right{animation-name:merge-move-right}.merge-from-up{animation-name:merge-move-up}.merge-from-down{animation-name:merge-move-down}@keyframes merge-move-left{from{transform:translateX(-38%) scale(.96)}to{transform:translateX(0) scale(1)}}@keyframes merge-move-right{from{transform:translateX(38%) scale(.96)}to{transform:translateX(0) scale(1)}}@keyframes merge-move-up{from{transform:translateY(-38%) scale(.96)}to{transform:translateY(0) scale(1)}}@keyframes merge-move-down{from{transform:translateY(38%) scale(.96)}to{transform:translateY(0) scale(1)}}
.merge-intro p{margin:7px 0 0;color:#aebbd9;font-size:11px;line-height:1.5}.merge-moved{will-change:transform;animation-duration:.42s}.merge-from-left{animation-name:merge-move-left}.merge-from-right{animation-name:merge-move-right}.merge-from-up{animation-name:merge-move-up}.merge-from-down{animation-name:merge-move-down}@keyframes merge-move-left{from{opacity:.55;transform:translateX(-105%) scale(.92)}to{opacity:1;transform:translateX(0) scale(1)}}@keyframes merge-move-right{from{opacity:.55;transform:translateX(105%) scale(.92)}to{opacity:1;transform:translateX(0) scale(1)}}@keyframes merge-move-up{from{opacity:.55;transform:translateY(-105%) scale(.92)}to{opacity:1;transform:translateY(0) scale(1)}}@keyframes merge-move-down{from{opacity:.55;transform:translateY(105%) scale(.92)}to{opacity:1;transform:translateY(0) scale(1)}}
.merge-tile{animation:none}.merge-new{animation:merge-new .35s ease-out}.merge-selected-moved{z-index:2;will-change:transform;animation:merge-selected-moved .42s cubic-bezier(.2,.8,.2,1)}@keyframes merge-selected-moved{from{opacity:.8;transform:translate(var(--move-x),var(--move-y)) scale(1)}to{opacity:1;transform:translate(0,0) scale(1)}}
.merge-board{position:relative}.merge-merged{animation:merge-merged-pop .32s ease-out}.merge-ghost{position:absolute;z-index:4;display:grid;place-items:center;border-radius:8px;color:#fff;font-size:clamp(22px,7vw,45px);font-weight:900;pointer-events:none;box-shadow:inset 0 -3px 0 #0002;animation:merge-ghost-move .42s cubic-bezier(.2,.8,.2,1) both}.merge-ghost.merge-v2{background:#6474a9}.merge-ghost.merge-v4{background:#7c83bf}.merge-ghost.merge-v8{background:#fb923c}.merge-ghost.merge-v16{background:#f97316}.merge-ghost.merge-v32{background:#ef4444}.merge-ghost.merge-v64{background:#dc2626}.merge-ghost.merge-v128,.merge-ghost.merge-v256,.merge-ghost.merge-v512{font-size:clamp(19px,6vw,38px)}.merge-ghost.merge-v128{background:#c026d3}.merge-ghost.merge-v256{background:#9333ea}.merge-ghost.merge-v512{background:#2563eb}.merge-ghost.merge-v1024,.merge-ghost.merge-v2048{background:#d97706;font-size:clamp(17px,5.3vw,34px)}@keyframes merge-ghost-move{from{opacity:.9;transform:translate(0,0) scale(1)}to{opacity:1;transform:translate(var(--ghost-x),var(--ghost-y)) scale(1)}}@keyframes merge-merged-pop{from{transform:scale(.88)}to{transform:scale(1)}}