:root{--bg-color: #0f172a;--panel-bg: #1e293b;--text-primary: #f8fafc;--text-secondary: #94a3b8;--accent-color: #38bdf8;--border-color: #334155;--canvas-bg: #020617}*{box-sizing:border-box;margin:0;padding:0}body{font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,sans-serif;background-color:var(--bg-color);color:var(--text-primary);display:flex;justify-content:center;align-items:center;min-height:100vh;padding:1rem}#app{display:flex;flex-direction:column;align-items:center;gap:.75rem;max-width:900px;width:100%}.app-header{text-align:center;width:100%;max-width:820px;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:.5rem}.header-main{text-align:left}.app-header h1{font-size:1.5rem;letter-spacing:.05em;color:var(--text-primary)}.app-header .subtitle{font-size:.8rem;color:var(--text-secondary);margin-top:.15rem}.header-actions{display:flex;align-items:center;gap:.5rem;flex-wrap:wrap}.header-btn{margin-top:0;font-size:.85rem;padding:.4rem .9rem}.canvas-container{position:relative;background-color:var(--panel-bg);padding:.5rem;border-radius:8px;border:1px solid var(--border-color);box-shadow:0 10px 25px -5px #00000080;display:flex;justify-content:center;align-items:center;width:100%;max-width:820px}#game-canvas{background-color:var(--canvas-bg);border-radius:4px;max-width:100%;height:auto;display:block;outline:2px solid transparent;outline-offset:2px;transition:outline-color .15s ease-in-out,box-shadow .15s ease-in-out}#game-canvas:focus,#game-canvas:focus-visible{outline:2px solid var(--accent-color);box-shadow:0 0 16px #38bdf866}.modal{position:fixed;inset:0;height:100dvh;background-color:#020617d9;display:flex;justify-content:center;align-items:flex-start;overflow-y:auto;overscroll-behavior:contain;padding:1.5rem;z-index:10;backdrop-filter:blur(4px)}.modal.hidden{display:none!important}.modal-content{background-color:var(--panel-bg);border:1px solid var(--border-color);border-radius:12px;padding:1.5rem;max-width:500px;width:100%;margin:auto;text-align:center;box-shadow:0 20px 25px -5px #000000b3;animation:modalPop .2s ease-out}@keyframes modalPop{0%{opacity:0;transform:scale(.95)}to{opacity:1;transform:scale(1)}}.modal-content h2{font-size:1.5rem;color:var(--accent-color);margin-bottom:.25rem}#game-over-modal h2{color:#ef4444}.modal-subtitle{font-size:.85rem;color:var(--text-secondary);margin-bottom:1.25rem}.upgrade-list{display:flex;flex-direction:column;gap:.75rem}.upgrade-card{display:flex;align-items:center;gap:1rem;background-color:#0f172a;border:1px solid var(--border-color);border-radius:8px;padding:.75rem 1rem;cursor:pointer;text-align:left;transition:all .15s ease-in-out;color:inherit;width:100%}.upgrade-card:hover,.upgrade-card:focus-visible{border-color:var(--accent-color);background-color:#1e293b;transform:translateY(-2px);outline:none;box-shadow:0 4px 12px #38bdf833}.upgrade-key{display:inline-flex;justify-content:center;align-items:center;width:28px;height:28px;background-color:#334155;color:#f8fafc;border-radius:6px;font-weight:700;font-size:.875rem;flex-shrink:0}.upgrade-icon{font-size:1.5rem;flex-shrink:0}.upgrade-info{flex:1}.upgrade-name{font-size:.95rem;font-weight:600;color:#f8fafc;margin-bottom:.15rem}.upgrade-desc{font-size:.8rem;color:var(--text-secondary)}.modal-content-large{max-width:680px;text-align:left}.modal-header-row{display:flex;justify-content:space-between;align-items:center;margin-bottom:.5rem}.modal-header-row h2{font-size:1.25rem;color:#38bdf8;margin:0}.badge-paused{background-color:#f59e0b33;color:#fbbf24;border:1px solid #f59e0b;font-size:.75rem;padding:.15rem .5rem;border-radius:9999px}.preset-group{display:flex;align-items:center;gap:.5rem;margin:.75rem 0;flex-wrap:wrap}.preset-label{font-size:.8rem;color:var(--text-secondary)}.preset-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(15rem,1fr));gap:.4rem;width:100%}.preset-list .btn-preset{display:flex;flex-direction:column;align-items:flex-start;gap:.2rem;text-align:left}.preset-name{font-weight:600;color:#e2e8f0}.preset-meta{display:flex;flex-wrap:wrap;align-items:baseline;gap:.3rem}.preset-category{white-space:nowrap;padding:.05rem .3rem;border-radius:3px;background-color:#94a3b826;color:#94a3b8;font-size:.65rem}.btn-preset{background-color:var(--panel-bg);border:1px solid var(--border-color);color:var(--text-secondary);font-size:.75rem;padding:.3rem .6rem;border-radius:4px;cursor:pointer;margin-top:0;transition:all .15s}.btn-preset:hover,.btn-preset:focus-visible{background-color:#334155;color:#f8fafc;border-color:var(--accent-color)}.editor-toolbar{display:flex;flex-wrap:wrap;gap:.4rem;margin-bottom:.4rem}.btn-editor-tool{background-color:var(--panel-bg);border:1px solid var(--border-color);color:var(--text-secondary);font-size:.8rem;padding:.3rem .7rem;border-radius:4px;cursor:pointer;margin-top:0;white-space:nowrap;transition:all .15s}.btn-editor-tool:hover,.btn-editor-tool:focus-visible{background-color:#334155;color:#f8fafc;border-color:var(--accent-color)}@media(pointer:coarse){.btn-editor-tool{min-height:44px;min-width:44px;font-size:.9rem}}.editor-container{margin:.5rem 0}.code-textarea{width:100%;box-sizing:border-box;background-color:#050b14;color:#38bdf8;font-family:Consolas,Monaco,Courier New,Courier,monospace;font-size:.85rem;line-height:1.4;padding:.75rem;border-radius:6px;border:1px solid #334155;resize:vertical;min-height:180px;tab-size:4}.editor-hint{margin-top:.35rem;font-size:.72rem;color:var(--text-secondary)}.code-textarea:focus{outline:2px solid var(--accent-color);border-color:transparent}.error-banner{background-color:#ef444426;border:1px solid #ef4444;border-radius:6px;padding:.6rem .75rem;margin:.5rem 0;display:flex;align-items:flex-start;gap:.5rem;font-size:.8rem;color:#fca5a5}.modal-content-title{max-width:560px;text-align:center}.title-heading{font-size:2.2rem;letter-spacing:.08em;color:var(--accent-color);margin-bottom:.25rem}.title-save-notice{min-height:1.2em;margin:.75rem 0 0;font-size:.85rem;color:#fbbf24}.title-python-status{margin:.5rem 0 1rem;font-size:.85rem;color:var(--text-muted, #94a3b8)}.title-python-status.title-python-warning{color:#fbbf24}.modal-content-title .modal-actions{justify-content:center}.title-hint{margin-top:1rem;font-size:.78rem;color:var(--text-muted, #94a3b8)}.python-retry-hidden,.error-banner.hidden{display:none!important}.error-icon{font-size:1rem}.error-content{flex:1}.error-line-badge{display:inline-block;background-color:#ef4444;color:#fff;padding:.1rem .4rem;border-radius:4px;font-size:.7rem;font-weight:600;margin-left:.4rem}.modal-actions{display:flex;justify-content:flex-end;gap:.75rem;margin-top:1rem;position:sticky;bottom:0;background-color:var(--panel-bg);padding-top:.75rem}.btn{display:inline-block;padding:.6rem 1.5rem;font-size:.95rem;font-weight:600;border-radius:8px;border:none;cursor:pointer;transition:all .15s}.btn-primary{background-color:var(--accent-color);color:#020617}.btn-primary:hover:not(:disabled),.btn-primary:focus-visible:not(:disabled){background-color:#7dd3fc;outline:2px solid #ffffff}.btn-secondary{background-color:#334155;color:#f8fafc;border:1px solid #475569}.btn-secondary:hover:not(:disabled),.btn-secondary:focus-visible:not(:disabled){background-color:#475569;border-color:#64748b;outline:2px solid #ffffff}.btn:disabled,.btn-preset:disabled{opacity:.45;cursor:not-allowed;pointer-events:auto;box-shadow:none;transform:none;outline:none!important}.btn-secondary:disabled:hover,.btn-primary:disabled:hover,.btn-preset:disabled:hover{background-color:inherit;border-color:inherit;outline:none}.app-footer{display:flex;flex-direction:column;align-items:center;gap:.5rem;font-size:.75rem;color:var(--text-secondary);width:100%}.status-group{display:flex;align-items:center;gap:.5rem;flex-wrap:wrap;justify-content:center}#status-indicator{padding:.2rem .75rem;background-color:var(--panel-bg);border-radius:9999px;border:1px solid var(--border-color)}.badge-status{padding:.2rem .6rem;border-radius:9999px;font-size:.75rem;border:1px solid var(--border-color);background-color:var(--panel-bg)}.badge-python-ready{border-color:#10b981;color:#34d399}.badge-python-running{border-color:#38bdf8;color:#38bdf8}.badge-python-error{border-color:#ef4444;color:#f87171}.controls-guide{display:flex;flex-wrap:wrap;justify-content:center;gap:1rem;font-size:.75rem;color:#64748b}.controls-guide span{background-color:#1e293b80;padding:.15rem .5rem;border-radius:4px}.modal-content-clear{border-color:#eab308;box-shadow:0 0 35px #eab30859;text-align:center}.modal-content-clear h2{color:#facc15;text-shadow:0 0 15px rgba(250,204,21,.5);font-size:1.6rem}#game-clear-summary{font-size:.95rem;color:#f8fafc;line-height:1.7;margin-bottom:1.25rem}.chips-section{background-color:#0f172a99;border:1px solid var(--border-color);border-radius:6px;padding:.5rem .75rem;margin:.5rem 0}.chips-list{display:flex;flex-wrap:wrap;gap:.4rem;margin-top:.4rem}.chip-tag{display:inline-flex;align-items:center;gap:.25rem;background-color:#1e293b;border:1px solid #3b82f6;color:#93c5fd;font-size:.75rem;padding:.2rem .5rem;border-radius:4px;cursor:pointer;transition:all .15s}.chip-tag:hover{background-color:#2563eb;color:#fff}.chip-learning-goal{font-size:.75rem;color:#38bdf8;background-color:#38bdf81a;padding:.2rem .4rem;border-radius:3px;margin-top:.25rem;display:block}.chip-code-preview{font-family:Consolas,Monaco,Courier New,Courier,monospace;font-size:.7rem;color:#a7f3d0;background-color:#050b14;padding:.3rem .5rem;border-radius:3px;margin-top:.3rem;white-space:pre-wrap;display:block}.reference-panel{background-color:#0f172a99;border:1px solid var(--border-color);border-radius:6px;margin:.5rem 0}.reference-summary{cursor:pointer;padding:.5rem .75rem;font-size:.8rem;color:var(--accent-color);list-style:none}.reference-summary::-webkit-details-marker{display:none}.reference-summary:before{content:"▶ ";font-size:.7rem}.reference-panel[open] .reference-summary:before{content:"▼ "}.reference-summary:hover,.reference-summary:focus-visible{color:#f8fafc}.reference-body{padding:0 .75rem .75rem;border-top:1px solid var(--border-color)}.reference-heading{font-size:.8rem;color:#f8fafc;margin:.75rem 0 .35rem}.reference-code{font-family:Consolas,Monaco,Courier New,Courier,monospace;font-size:.7rem;line-height:1.5;color:#a7f3d0;background-color:#050b14;border-radius:4px;padding:.5rem .6rem;margin:0;overflow-x:auto}.reference-note{font-size:.72rem;line-height:1.6;color:var(--text-secondary);margin:.4rem 0 0}.reference-columns{display:flex;flex-wrap:wrap;gap:.5rem;margin-top:.4rem}.reference-column{flex:1 1 260px;border-radius:4px;padding:.5rem .6rem;font-size:.72rem;line-height:1.7}.reference-column-ok{background-color:#10b98114;border:1px solid rgba(16,185,129,.35)}.reference-column-ng{background-color:#ef444414;border:1px solid rgba(239,68,68,.35)}.reference-column-title{font-weight:600;margin-bottom:.25rem;color:#f8fafc}.reference-column ul{margin:0;padding-left:1.1rem;color:var(--text-secondary)}.reference-column code{font-family:Consolas,Monaco,Courier New,Courier,monospace;color:#a7f3d0}.reference-functions{margin:.4rem 0 0;font-size:.72rem;line-height:1.6}.reference-function{display:grid;grid-template-columns:minmax(9rem,12rem) 1fr;gap:.15rem .6rem;padding:.3rem 0;border-top:1px solid rgba(51,65,85,.6)}.reference-function:first-child{border-top:0}.reference-function dt{font-family:Consolas,Monaco,Courier New,Courier,monospace;color:#7dd3fc}.reference-function dd{margin:0;color:var(--text-secondary)}.reference-functions code{font-family:Consolas,Monaco,Courier New,Courier,monospace;color:#a7f3d0}@media(max-width:620px){.reference-function{grid-template-columns:1fr}}.reference-list{margin:.4rem 0 0;padding-left:1.1rem;font-size:.72rem;line-height:1.7;color:var(--text-secondary)}.reference-list code{font-family:Consolas,Monaco,Courier New,Courier,monospace;color:#a7f3d0}.editor-with-gutter{position:relative;background-color:#050b14;border:1px solid #334155;border-radius:6px;overflow:hidden}.editor-with-gutter:focus-within{outline:2px solid var(--accent-color);border-color:transparent}.editor-gutter{position:absolute;left:0;top:0;bottom:0;width:2.6rem;box-sizing:border-box;padding:.75rem .4rem .75rem .5rem;font-family:Consolas,Monaco,Courier New,Courier,monospace;font-size:.85rem;line-height:1.4;text-align:right;color:#475569;background-color:#0b1220;border-right:1px solid #1e293b;user-select:none;overflow:hidden}.gutter-line{display:block;cursor:pointer;border-radius:2px}.gutter-line:hover{color:#cbd5e1;background-color:#1e293b}.gutter-line.is-selected{color:#fbbf24;box-shadow:inset 2px 0 #fbbf24}.gutter-line.is-executed{color:#38bdf8;font-weight:600}.gutter-line.is-error{color:#f8fafc;background-color:#ef4444;border-radius:2px}.editor-with-gutter .code-textarea{display:block;padding-left:3.1rem;border:0;border-radius:0}.editor-with-gutter .code-textarea:focus{outline:none;border-color:transparent}.line-explain{margin-top:.4rem;padding:.5rem .65rem;min-height:4.4rem;box-sizing:border-box;background-color:#0b1220;border:1px solid #1e293b;border-left:3px solid #fbbf24;border-radius:6px}.line-explain-hint{margin:0;font-size:.78rem;color:#64748b}.line-explain-hint.hidden,.line-explain-body.hidden{display:none}.line-explain-head{display:flex;flex-wrap:wrap;gap:.35rem;align-items:baseline}.line-explain-line{font-family:Consolas,Monaco,Courier New,Courier,monospace;font-size:.72rem;color:#fbbf24}.line-explain-syntax{padding:.05rem .35rem;border-radius:3px;background-color:#38bdf826;color:#7dd3fc;font-size:.7rem}.line-explain-summary{font-size:.82rem;font-weight:600;color:#e2e8f0;flex:1 1 12rem;min-width:0;overflow-wrap:anywhere}.line-explain-code{display:block;margin-top:.3rem;overflow-x:auto;white-space:pre;font-family:Consolas,Monaco,Courier New,Courier,monospace;font-size:.75rem;color:#a7f3d0}.line-explain-detail{margin:.3rem 0 0;font-size:.78rem;line-height:1.5;color:#94a3b8;overflow-wrap:anywhere}.line-explain-detail code{font-family:Consolas,Monaco,Courier New,Courier,monospace;color:#a7f3d0}.editor-legend{display:flex;flex-wrap:wrap;gap:.15rem .5rem;align-items:baseline}.legend-executed{color:#38bdf8}.legend-error{color:#ef4444}.legend-note{color:#64748b}.preset-boost{white-space:nowrap;padding:.05rem .3rem;border-radius:3px;background-color:#38bdf826;color:#7dd3fc;font-size:.68rem}@media(orientation:landscape)and (max-height:500px){body{padding:0;min-height:0;height:100dvh;align-items:stretch}#app{height:100dvh;max-width:none;gap:.25rem;padding:0 env(safe-area-inset-right) 0 env(safe-area-inset-left)}.app-header{max-width:none;flex-wrap:nowrap;gap:.5rem;padding:.15rem .5rem 0}.app-header h1{font-size:.95rem}.app-header .subtitle{display:none}.header-actions{flex-wrap:nowrap}.header-btn{font-size:.75rem;padding:.2rem .6rem;min-height:44px;white-space:nowrap}.canvas-container{flex:1;min-height:0;max-width:none;padding:0;background-color:transparent;border:none;box-shadow:none}#game-canvas{height:100%;width:auto;max-width:100%;max-height:100%}.app-footer{padding:0 .5rem .15rem}.controls-guide{display:none}#status-indicator,#python-status-indicator{font-size:.7rem;padding:.1rem .5rem}}.touch-controls{display:none}@media(orientation:landscape)and (max-height:500px)and (pointer:coarse){.touch-controls{display:block;position:fixed;inset:0;z-index:5;pointer-events:none}.touch-stick-area,.touch-dodge-area{position:absolute;top:0;bottom:0;width:40vw;max-width:220px;pointer-events:auto;touch-action:none;display:flex;align-items:center;justify-content:center}.touch-stick-area{left:0;padding-left:env(safe-area-inset-left)}.touch-dodge-area{right:0;padding-right:env(safe-area-inset-right)}.touch-stick-base{position:absolute;width:120px;height:120px;border-radius:50%;border:2px solid rgba(56,189,248,.35);background-color:#02061759;transform:translate(-50%,-50%);display:none}.touch-stick-base.active{display:block}.touch-stick-knob{position:absolute;left:50%;top:50%;width:52px;height:52px;border-radius:50%;background-color:#38bdf880;border:2px solid rgba(56,189,248,.8);transform:translate(-50%,-50%)}.touch-dodge-button{width:88px;height:88px;border-radius:50%;border:2px solid rgba(56,189,248,.6);background-color:#1e293b99;color:var(--text-primary);font-family:inherit;font-size:.9rem;font-weight:600;touch-action:none;-webkit-tap-highlight-color:transparent;user-select:none}.touch-dodge-button.pressed{background-color:#38bdf873}#game-canvas{touch-action:none}}.rotate-prompt{display:none}@media(orientation:portrait)and (hover:none)and (pointer:coarse){.rotate-prompt{display:flex;position:fixed;inset:0;height:100dvh;z-index:8;align-items:center;justify-content:center;padding:2rem;background-color:#020617f0;backdrop-filter:blur(4px);text-align:center}#app:has(.modal:not(.hidden)) .rotate-prompt{display:none}.rotate-prompt-icon{font-size:3rem;display:block;margin-bottom:.75rem;transform:rotate(90deg)}.rotate-prompt-title{font-size:1.25rem;font-weight:600;color:var(--accent-color);margin-bottom:.5rem}.rotate-prompt-note{font-size:.85rem;line-height:1.6;color:var(--text-secondary)}}.locked-notice.hidden{display:none}.locked-notice{position:fixed;top:12px;left:50%;transform:translate(-50%);z-index:60;max-width:min(92vw,640px);padding:10px 16px;border:1px solid #b45309;border-radius:8px;background:#451a03f5;box-shadow:0 6px 20px #00000073;color:#fbbf24;font-size:13px;line-height:1.5;text-align:center;pointer-events:none}.blank-panel{background-color:#38bdf80f;border:1px solid var(--accent-color);border-radius:6px;padding:.6rem .75rem;margin:.5rem 0}.blank-panel.hidden{display:none!important}.blank-panel-head{display:flex;align-items:center;justify-content:space-between;gap:.5rem;flex-wrap:wrap}.blank-panel-title{font-size:.85rem;color:var(--accent-color)}.blank-panel-goal{font-size:.75rem;color:#7dd3fc;margin-top:.2rem}.blank-list{display:flex;flex-direction:column;gap:.5rem;margin-top:.5rem}.blank-item{border-left:2px solid var(--border-color);padding-left:.5rem}.blank-item-head{display:flex;align-items:baseline;gap:.4rem;flex-wrap:wrap;font-size:.75rem}.blank-item-marker{font-family:Consolas,Monaco,Courier New,Courier,monospace;color:#fbbf24;font-weight:700}.blank-item-line{color:#64748b}.blank-item-prompt{color:var(--text-primary)}.blank-choices{display:flex;flex-wrap:wrap;gap:.35rem;margin-top:.3rem}.blank-choice{font-family:Consolas,Monaco,Courier New,Courier,monospace;font-size:.78rem;background-color:#0f172a;color:#93c5fd;border:1px solid var(--border-color);border-radius:4px;padding:.3rem .5rem;cursor:pointer;transition:all .15s}.blank-choice:hover:not(.is-correct):not(.is-wrong){border-color:var(--accent-color);color:#fff}.blank-choice.is-correct{background-color:#22c55e2e;border-color:#22c55e;color:#86efac}.blank-choice.is-correct:after{content:" ⭕"}.blank-choice.is-wrong{background-color:#ef444426;border-color:#ef4444;color:#fca5a5}.blank-choice.is-wrong:after{content:" ❌"}.blank-feedback{font-size:.73rem;margin-top:.3rem;line-height:1.5}.blank-feedback.is-correct{color:#86efac}.blank-feedback.is-wrong{color:#fca5a5}.blank-panel-status{font-size:.75rem;color:var(--text-secondary);margin-top:.5rem}.blank-panel-status.is-correct{color:#86efac}.blank-panel-status.is-wrong{color:#fbbf24}.blank-panel-status.is-solved{color:#7dd3fc}.blank-panel .btn-editor-tool.hidden,.preset-group.hidden,.chips-section.hidden{display:none!important}.title-progress{font-size:.75rem;color:var(--accent-color);background-color:#38bdf814;border:1px solid rgba(56,189,248,.35);border-radius:6px;padding:.4rem .6rem;margin:.5rem 0;line-height:1.7;white-space:pre-line;text-align:left}.title-progress.hidden{display:none!important}.unlock-panel{background-color:#0f172a99;border:1px solid var(--border-color);border-radius:6px;margin:.5rem 0;text-align:left}.unlock-summary{cursor:pointer;padding:.4rem .6rem;font-size:.78rem;color:var(--accent-color);list-style:none}.unlock-summary::-webkit-details-marker{display:none}.unlock-summary:before{content:"▶ ";font-size:.7rem}.unlock-panel[open] .unlock-summary:before{content:"▼ "}.unlock-list{padding:0 .6rem .5rem;display:flex;flex-direction:column;gap:.3rem;max-height:40vh;overflow-y:auto}.unlock-row{display:flex;align-items:baseline;justify-content:space-between;gap:.5rem;font-size:.73rem;padding:.2rem 0;border-bottom:1px solid rgba(51,65,85,.6)}.unlock-row-label{color:var(--text-secondary)}.unlock-row.is-unlocked .unlock-row-label{color:#86efac}.unlock-row-condition{color:#fbbf24;text-align:right;white-space:nowrap}.unlock-row.is-unlocked .unlock-row-condition{color:#4ade80}.code-textarea:read-only{background-color:#020617;color:#7dd3fc;cursor:default}