:root{--ice-light:#eaf7ff;--ice:#bfe9ff;--ice-deep:#8fd3f4;--ice-shine:#fff;--rock:#5b6b7a;--rock-deep:#33404d;--wall:#cfe0ea;--wall-deep:#9fc0d4;--goal:#ff9a3c;--goal-deep:#ff6b3c;--player-body:#fff;--player-scarf:#e8433f;--ink:#1c2b3a;--bg-top:#dff3ff;--bg-bottom:#a8dcff;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;color:var(--ink);-webkit-font-smoothing:antialiased;font:16px/1.4 Segoe UI,Hiragino Sans,Yu Gothic,system-ui,sans-serif}*{box-sizing:border-box}html,body{overscroll-behavior-y:contain;height:100%;margin:0;padding:0}body{background:linear-gradient(180deg, var(--bg-top) 0%, var(--bg-bottom) 100%);min-height:100svh}#root{min-height:100svh;display:flex}button{font-family:inherit}.app-root{flex:1;justify-content:center;width:100%;display:flex}.screen{width:100%;max-width:520px;min-height:100svh;padding:max(16px, env(safe-area-inset-top)) 16px max(16px, env(safe-area-inset-bottom));flex-direction:column;align-items:center;gap:16px;display:flex}.top-screen{justify-content:center;gap:48px}.game-logo{text-align:center;letter-spacing:4px;color:var(--ink);text-shadow:0 3px 0 var(--ice-shine), 0 8px 16px #1e5a8c40;margin:0;font-size:clamp(36px,10vw,56px);font-weight:800}.game-logo-sub{letter-spacing:2px;color:#3b6f8f;margin-top:12px;font-size:clamp(13px,3.5vw,16px);font-weight:500;display:block}.top-menu{flex-direction:column;gap:16px;width:100%;max-width:280px;display:flex}.top-menu-btn{min-height:56px;color:var(--ink);letter-spacing:2px;box-shadow:0 6px 0 var(--wall-deep), 0 10px 18px #14466e40;cursor:pointer;background:#fff;border:none;border-radius:18px;font-size:18px;font-weight:700;transition:transform 80ms}.top-menu-btn:active{box-shadow:0 2px 0 var(--wall-deep), 0 4px 10px #14466e40;transform:translateY(4px)}.top-menu-play{background:linear-gradient(180deg, var(--goal) 0%, var(--goal-deep) 100%);color:#fff;box-shadow:0 6px #c2451c,0 10px 18px #c8501459}.top-menu-play:active{box-shadow:0 2px #c2451c,0 4px 10px #c8501459}.screen-title{letter-spacing:3px;margin:8px 0 0;font-size:clamp(22px,6vw,28px);font-weight:800}.stage-grid{grid-template-columns:repeat(auto-fill,minmax(76px,1fr));gap:12px;width:100%;display:grid}.stage-cell{aspect-ratio:1;box-shadow:0 4px 0 var(--wall-deep), 0 8px 14px #14466e33;color:var(--ink);cursor:pointer;background:#fff;border:none;border-radius:16px;flex-direction:column;justify-content:center;align-items:center;gap:2px;font-weight:800;display:flex;position:relative}.stage-cell:active:not(:disabled){transform:translateY(3px)}.stage-cell-number{font-size:20px}.stage-cell-best{color:#3b6f8f;font-size:9px;font-weight:700}.stage-cell-check{color:#2fb35a;font-size:14px;position:absolute;top:6px;right:8px}.stage-cell-cleared{background:var(--ice-light)}.stage-cell-locked{color:#9aa7b0;cursor:default;background:#e4e9ed;box-shadow:0 4px #c6cdd2}.stage-cell-lock{font-size:16px}.screen-back{min-height:48px;box-shadow:0 4px 0 var(--wall-deep);letter-spacing:1px;cursor:pointer;background:#fff;border:none;border-radius:14px;padding:0 24px;font-weight:700}.game-screen{justify-content:flex-start;gap:12px;height:100svh}.hud{letter-spacing:1px;background:#ffffffd9;border-radius:16px;justify-content:space-between;align-items:center;width:100%;padding:10px 18px;font-size:15px;font-weight:800;display:flex;box-shadow:0 4px 12px #14466e26}.board-wrapper{flex:1;justify-content:center;align-items:center;width:100%;min-height:0;display:flex;position:relative;container-type:size}.board-square{justify-content:center;align-items:center;width:100%;height:100%;display:flex}.board-grid{grid-template-columns:repeat(var(--cols), 1fr);grid-template-rows:repeat(var(--rows), 1fr);touch-action:none;background:var(--ice-deep);border-radius:14px;width:min(100%,100cqh);max-width:100%;height:auto;max-height:100%;display:grid;position:relative;overflow:hidden;box-shadow:0 10px 30px #0a325a59}.tutorial-hint{color:#fff;text-align:center;pointer-events:none;background:#14283cd1;border-radius:12px;padding:10px 16px;font-size:13px;font-weight:600;line-height:1.5;animation:1.8s ease-in-out infinite hint-pulse;position:absolute;bottom:8px;left:50%;transform:translate(-50%)}@keyframes hint-pulse{0%,to{opacity:.85}50%{opacity:1}}.tile{position:relative}.tile-ice{background:linear-gradient(135deg, var(--ice-light) 0%, var(--ice) 60%, var(--ice-deep) 100%);box-shadow:inset 0 0 0 1px #fff6}.tile-ice:after{content:"";background:linear-gradient(115deg,#0000 40%,#ffffff8c 48%,#0000 56%);position:absolute;inset:0}.tile-wall{background:linear-gradient(160deg, var(--wall) 0%, var(--wall-deep) 100%);box-shadow:inset 0 0 0 1px #ffffff80,inset 0 -3px #466e824d}.tile-rock{background:radial-gradient(circle at 35% 30%, var(--rock) 0%, var(--rock-deep) 75%);border-radius:20%;width:84%;height:84%;margin:8%;box-shadow:inset 0 0 0 1px #0003}.tile-gate{background:linear-gradient(160deg,#c9a679 0%,#8f6a44 100%);box-shadow:inset 0 0 0 1px #ffffff40,inset 0 3px 6px #00000040}.tile-gate:after{content:"";background:#140f0a59;border-radius:40%;position:absolute;inset:18%}.tile-gate-exit{background:linear-gradient(160deg,#f0b877 0%,#c47a35 100%)}.tile-gate-exit:after{background:#ffc87859;box-shadow:0 0 8px 2px #ffa03c80}.tile-goal{background:linear-gradient(135deg, var(--ice-light) 0%, var(--ice) 60%, var(--ice-deep) 100%)}.tile-goal:before{content:"";background:radial-gradient(circle at 40% 35%, var(--goal) 0%, var(--goal-deep) 100%);border-radius:50%;animation:1.4s ease-in-out infinite goal-pulse;position:absolute;inset:14%;box-shadow:0 0 12px 2px #ff8228b3}@keyframes goal-pulse{0%,to{transform:scale(.92)}50%{transform:scale(1)}}.player{width:calc(100% / var(--cols));height:calc(100% / var(--rows));z-index:5;pointer-events:none;transition-property:transform;transition-timing-function:linear;position:absolute;top:0;left:0}.player-sprite{filter:drop-shadow(0 3px 3px #0a284659);width:100%;height:100%;position:absolute;inset:0}.player-shadow{fill:#0a284638}.player-hat{fill:#5e4b9e}.player-hat-band{fill:#a9d8f5}.player-hat-pom{fill:#d9ecfb;stroke:#a9d8f5;stroke-width:.5px}.player-skin{fill:#f3caa1}.player-eye{fill:var(--ink)}.player-scarf{fill:#6a4fb0}.player-suit{fill:#4f7cb0}.player-suit-light{fill:#7fa8d1}.player-suit-dark{fill:#3a5d8a}.player-skate{fill:#33404d}.player-blade{fill:#eef5fa}.player-sliding .player-sprite{filter:drop-shadow(0 5px 5px #0a284673)}.player-bump{animation:.15s ease-in-out bump}@keyframes bump{0%,to{margin-left:0}50%{margin-left:6%}}.controls{grid-template-columns:1fr 1fr;grid-template-areas:"undo reset""dpad dpad";align-items:center;gap:10px;width:100%;display:grid}.control-undo{grid-area:undo;justify-self:start}.control-reset{grid-area:reset;justify-self:end}.control-btn{min-width:48px;min-height:48px;box-shadow:0 4px 0 var(--wall-deep), 0 6px 12px #14466e33;letter-spacing:1px;color:var(--ink);cursor:pointer;background:#fff;border:none;border-radius:14px;padding:0 16px;font-size:14px;font-weight:800}.control-btn:disabled{opacity:.4;box-shadow:none;cursor:default}.control-btn:active:not(:disabled){box-shadow:0 1px 0 var(--wall-deep);transform:translateY(3px)}.dpad{grid-area:dpad;grid-template-rows:repeat(3,56px);grid-template-columns:repeat(3,56px);justify-self:center;gap:6px;display:grid}.dpad-up{grid-area:1/2}.dpad-left{grid-area:2/1}.dpad-right{grid-area:2/3}.dpad-down{grid-area:3/2}.dpad .control-btn{min-width:56px;min-height:56px;padding:0;font-size:22px}.modal-overlay{z-index:20;background:#0a1e328c;justify-content:center;align-items:center;animation:.25s ease-out fade-in;display:flex;position:fixed;inset:0}@keyframes fade-in{0%{opacity:0}to{opacity:1}}.modal-card{background:#fff;border-radius:24px;flex-direction:column;align-items:center;gap:8px;padding:32px 40px;animation:.35s cubic-bezier(.34,1.56,.64,1) pop-in;display:flex;box-shadow:0 20px 50px #0a284666}@keyframes pop-in{0%{opacity:0;transform:scale(.7)}to{opacity:1;transform:scale(1)}}.modal-title{color:var(--goal-deep);letter-spacing:2px;font-size:30px;font-weight:800}.modal-moves{font-size:18px;font-weight:700}.modal-best{color:#3b6f8f;margin-bottom:12px;font-size:13px;font-weight:600}.modal-actions{flex-wrap:wrap;justify-content:center;gap:10px;margin-top:4px;display:flex}.modal-btn{background:linear-gradient(180deg, var(--goal) 0%, var(--goal-deep) 100%);color:#fff;letter-spacing:1px;cursor:pointer;border:none;border-radius:14px;min-height:48px;padding:0 24px;font-weight:800;box-shadow:0 4px #c2451c}.modal-btn:active{transform:translateY(3px);box-shadow:0 1px #c2451c}.modal-btn-secondary{color:var(--wall-deep);background:linear-gradient(#eaf4fb 0%,#cfe4f2 100%);box-shadow:0 4px #9fbdcf}.modal-btn-secondary:active{box-shadow:0 1px #9fbdcf}@media (width>=768px){.screen{max-width:600px;padding-top:32px}.dpad{grid-template-rows:repeat(3,64px);grid-template-columns:repeat(3,64px)}}@media (width>=1024px){.screen{max-width:640px}.game-screen{justify-content:center;height:auto;min-height:100svh}.board-wrapper{aspect-ratio:1;flex:none;width:100%;max-height:60svh}}