:root{--bg-primary: #191919;--bg-secondary: #242424;--bg-tertiary: #2f2f2f;--text-primary: #e6e6e6;--text-secondary: #8b8f9c;--accent: #b88a79;--accent-dim: #9e7870;--accent-glow: rgba(184, 138, 121, .28);--danger: #ff4444;--success: #b88a79;--border: #2f2f2f;--border-light: #3a3a3a;--panel-bg: #1e1e1e;--card-bg: #252525;--gray: #3a3f4b;--ui-font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;--mono-font: "Inter", ui-monospace, "SF Mono", "Cascadia Code", monospace}[data-theme=light]{--bg-primary: #f0f0f0;--bg-secondary: #ffffff;--bg-tertiary: #e8e8e8;--text-primary: #1a1a1a;--text-secondary: #666666;--accent: #926b5d;--accent-dim: #74554a;--accent-glow: rgba(146, 107, 93, .18);--danger: #d93030;--success: #926b5d;--border: #d5d5d5;--border-light: #e0e0e0;--panel-bg: #fafafa;--card-bg: #f2f2f2;--gray: #c0c0c0}[data-theme=light] .btn-secondary:hover{background:#e8e3dc;border-color:#d0cbc4}[data-theme=light] .mode-btn.active,[data-theme=light] .gate-btn:hover{background:#f5ede0}[data-theme=light] #content-asm #asm-editor{background:#f5f5f5;border-color:#d0d0d0}[data-theme=light] #content-asm #asm-log{background:#fafafa;border-color:#d0d0d0}[data-theme=light] #content-asm .asm-help summary{color:#2563eb}[data-theme=light] #content-asm .asm-help-table th,[data-theme=light] #content-asm .asm-help-table td{border-color:#e0e0e0}[data-theme=light] #content-asm .asm-help-note code{background:#e8e8e8}[data-theme=light] ::-webkit-scrollbar-thumb{background:silver}[data-theme=light] ::-webkit-scrollbar-thumb:hover{background:#999}*,*:before,*:after{margin:0;padding:0;box-sizing:border-box}html,body{height:100%;overflow:hidden;font-family:var(--ui-font);background-color:var(--bg-primary);background-image:radial-gradient(circle,#2a2a2a 1px,transparent 1px);background-size:20px 20px;color:var(--text-primary);font-size:13px;line-height:1.5;-webkit-font-smoothing:antialiased}[data-theme=light] body{background-image:radial-gradient(circle,#d5d5d5 1px,transparent 1px)}#app{display:flex;flex-direction:column;height:100vh}header{display:flex;align-items:center;justify-content:space-between;padding:8px 20px;background:var(--bg-secondary);border-bottom:1px solid var(--border);flex-shrink:0;height:48px}header .logo{display:flex;align-items:center;gap:10px;font-family:var(--ui-font);font-size:15px;font-weight:600;color:var(--accent);text-shadow:0 0 12px var(--accent-glow)}header .logo .logo-svg{display:inline-block;width:28px;height:28px;flex-shrink:0;background-color:var(--text-secondary);mask-image:url(/img/logo-ae.svg);mask-size:contain;mask-repeat:no-repeat;mask-position:center;-webkit-mask-image:url(/img/logo-ae.svg);-webkit-mask-size:contain;-webkit-mask-repeat:no-repeat;-webkit-mask-position:center}header .site-links{display:flex;gap:2px;align-items:center;margin:0 auto 0 24px}header .site-links a{color:var(--text-secondary);text-decoration:none;padding:6px 14px;border-radius:6px;font-size:13px;font-family:var(--ui-font);font-weight:500;transition:color .25s cubic-bezier(.4,0,.2,1),background .25s cubic-bezier(.4,0,.2,1),transform .25s cubic-bezier(.4,0,.2,1)}header .site-links a:hover{color:var(--accent);background:#c49a6c14;transform:translateY(-1px)}header .site-links a.active{color:var(--accent);background:#c49a6c14}header nav{display:flex;gap:6px;align-items:center}.btn-primary{background:var(--accent);color:#fff;border:none;padding:9px 20px;border-radius:6px;font-size:13px;font-weight:600;font-family:var(--ui-font);cursor:pointer;transition:background .25s cubic-bezier(.4,0,.2,1),box-shadow .25s cubic-bezier(.4,0,.2,1),transform .25s cubic-bezier(.4,0,.2,1)}.btn-primary:hover{background:#a88072;box-shadow:0 0 16px var(--accent-glow);transform:translateY(-2px)}.btn-primary:active{transform:scale(.95)}.btn-secondary{background:var(--bg-tertiary);color:var(--text-primary);border:1px solid var(--border-light);padding:7px 14px;border-radius:6px;font-size:12px;font-family:var(--ui-font);cursor:pointer;transition:background .25s cubic-bezier(.4,0,.2,1),border-color .25s cubic-bezier(.4,0,.2,1),box-shadow .25s cubic-bezier(.4,0,.2,1),transform .25s cubic-bezier(.4,0,.2,1)}.btn-secondary:hover{background:#3d3630;border-color:#544a40;box-shadow:0 0 12px #c49a6c1f;transform:translateY(-1px)}.btn-secondary:active{transform:scale(.95)}.mode-btn{background:transparent;color:var(--text-secondary);border:1px solid transparent;padding:5px 12px;border-radius:4px;font-size:12px;font-family:var(--ui-font);cursor:pointer;transition:all .25s cubic-bezier(.4,0,.2,1)}.mode-btn:hover{color:var(--text-primary);transform:translateY(-1px)}.mode-btn.active{background:#2d2822;color:var(--accent);border-color:var(--accent)}#toolbar{display:flex;align-items:center;padding:10px 20px;background:var(--bg-secondary);border-bottom:1px solid var(--border);flex-shrink:0;min-height:64px;gap:16px}#toolbar-actions{display:flex;align-items:center;gap:8px;flex-shrink:0}#toolbar-gates{display:flex;align-items:center;gap:10px;overflow-x:auto;flex:1;min-width:0;scrollbar-width:thin;scrollbar-color:var(--border-light) transparent;padding-bottom:4px}#toolbar-gates::-webkit-scrollbar{height:5px}#toolbar-gates::-webkit-scrollbar-track{background:transparent}#toolbar-gates::-webkit-scrollbar-thumb{background:var(--border-light);border-radius:3px}.hint-wrap{position:relative}#hint-tooltip{position:absolute;top:calc(100% + 8px);left:50%;transform:translate(-50%);min-width:220px;max-width:340px;background:var(--bg-tertiary);border:1px solid var(--border-light);border-radius:8px;padding:12px 36px 12px 14px;font-size:12px;line-height:1.5;color:var(--text-primary);z-index:100;box-shadow:0 4px 16px #0006;white-space:pre-wrap;pointer-events:auto}#hint-tooltip.hidden{display:none!important}.hint-tooltip-close{position:absolute;top:6px;right:8px;background:none;border:none;color:var(--text-secondary);font-size:14px;cursor:pointer;padding:2px 4px;line-height:1}.hint-tooltip-close:hover{color:var(--text-primary)}.gate-btn{width:48px;height:48px;border-radius:50%;background:var(--card-bg);border:1.5px solid var(--border-light);color:var(--text-secondary);font-family:var(--ui-font);font-size:10px;font-weight:600;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .25s cubic-bezier(.4,0,.2,1);flex-shrink:0;text-align:center;line-height:1.1}.gate-btn:hover{background:#2d2822;border-color:var(--accent);color:var(--accent);box-shadow:0 0 10px var(--accent-glow);transform:translateY(-1px)}.gate-btn:active{transform:scale(.93)}.gate-btn.locked{opacity:.35;cursor:default;pointer-events:none}main{display:flex;flex:1;overflow:hidden}#canvas-container{flex:1;position:relative;overflow:hidden;background-color:#191919}#graph-canvas{width:100%;height:100%;display:block}#level-panel{width:320px;flex-shrink:0;background:var(--panel-bg);border-left:1px solid var(--border);display:flex;flex-direction:column;overflow:hidden;padding:16px}#level-info{margin-bottom:16px}#level-title{font-size:15px;font-weight:600;margin-bottom:6px;color:var(--accent)}.level-help-link{margin-top:8px;font-size:12px}.level-help-link a{color:var(--accent);text-decoration:none}.level-help-link a:hover{text-decoration:underline}#level-goal{font-size:12px;line-height:1.6;color:var(--text-secondary)}#section-testing{font-size:11px;text-transform:uppercase;letter-spacing:1.5px;color:var(--accent-dim);border-top:1px solid var(--border-light);padding-top:16px;margin-bottom:12px}#truth-table-container{margin-bottom:16px}#truth-table-container h3{font-size:11px;text-transform:uppercase;letter-spacing:1px;color:var(--text-secondary);margin-bottom:8px}#truth-table canvas{display:block;width:100%}#test-status{margin-bottom:14px;padding:10px 14px;border-radius:6px;font-size:12px;font-weight:500;line-height:1.5}#test-status.success{background:#c49a6c1a;border:1px solid rgba(196,154,108,.25);color:var(--accent)}#test-status.fail{background:#ff444414;border:1px solid rgba(255,68,68,.2);color:var(--danger)}#test-table{margin-bottom:14px;overflow-x:auto}#test-table .modal-match-table{font-size:11px}#btn-next-level{background:#2ea043;margin-bottom:14px;width:100%}#btn-next-level:hover{background:#3fb950}.hidden{display:none!important}#modal-overlay{position:fixed;inset:0;background:#000000a6;display:flex;align-items:center;justify-content:center;z-index:1000}#modal-content{background:var(--panel-bg);border:1px solid var(--border-light);border-radius:12px;padding:32px;max-width:480px;width:90%;text-align:center}#modal-content h2{color:var(--accent);margin-bottom:12px;font-size:20px;font-weight:600}#modal-content p{color:var(--text-secondary);margin-bottom:20px;line-height:1.6;font-size:13px}.modal-match-table{width:100%;border-collapse:collapse;margin:0 0 8px;font-family:var(--mono-font);font-size:12px}.modal-match-table th{background:var(--bg-tertiary);color:var(--text-secondary);padding:6px 10px;font-weight:500;border-bottom:1px solid var(--border);white-space:nowrap}.modal-match-table td{padding:5px 10px;text-align:center;border-bottom:1px solid var(--border);color:var(--text-primary)}.modal-match-table .out-sep{border-left:2px solid var(--border-light)}.modal-match-table td.actual{color:var(--danger);font-weight:600}.modal-match-table tbody tr.tt-hover{background:#c49a6c1a;outline:1px solid var(--accent)}#level-map-overlay{position:fixed;inset:0;background:#000000bf;display:flex;flex-direction:column;align-items:center;justify-content:center;z-index:1000}#level-map-overlay h2{color:var(--accent);margin-bottom:16px;font-size:20px;font-weight:600}#level-map-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;max-width:600px;width:90%;margin-bottom:16px}.level-map-item{background:var(--card-bg);border:1px solid var(--border-light);border-radius:8px;padding:16px 8px;text-align:center;cursor:pointer;transition:all .25s cubic-bezier(.4,0,.2,1)}.level-map-item:hover{border-color:var(--accent);transform:translateY(-2px);box-shadow:0 4px 20px var(--accent-glow)}.level-map-item.completed{border-color:var(--accent);background:#c49a6c14}.level-map-item.current{border-color:var(--accent);box-shadow:0 0 10px var(--accent-glow)}.level-map-item.locked{opacity:.35;cursor:default;pointer-events:none}.level-map-item .lvl-num{font-size:20px;font-weight:700;color:var(--accent)}.level-map-item .lvl-title{font-size:10px;color:var(--text-secondary);margin-top:4px}.level-map-item.completed .lvl-num:after{content:" \2713";font-size:13px}#clock-control{margin-bottom:16px;padding:12px;background:var(--bg-secondary);border-radius:8px;border:1px solid var(--border)}#clock-control .clock-buttons{display:flex;gap:8px;margin-bottom:8px}#clock-control .clock-buttons button{min-width:40px;text-align:center}#clock-control .clock-slider{display:flex;align-items:center;gap:8px;margin-bottom:6px}#clock-control .clock-slider label{font-size:11px;color:var(--text-secondary);white-space:nowrap}#clock-control .clock-slider input{flex:1;accent-color:var(--accent)}#clock-control .clock-ticks{font-size:11px;color:var(--text-secondary)}#content-asm{display:flex;flex-direction:column;gap:10px;flex:1;min-height:0}#content-asm .asm-hint{font-size:10px;color:var(--text-secondary);line-height:1.4}#content-asm #asm-editor{width:100%;background:#111;border:1px solid var(--border-light);border-radius:6px;color:var(--text-primary);font-family:var(--mono-font);font-size:12px;padding:10px;resize:vertical;min-height:120px}#content-asm #asm-editor:focus{outline:none;border-color:var(--accent)}#content-asm .asm-actions{display:flex;gap:8px}#content-asm .asm-actions button{flex:1}#content-asm .asm-indicators{display:flex;flex-wrap:wrap;gap:6px 14px;font-size:11px;color:var(--text-secondary)}#content-asm .asm-indicators span{white-space:nowrap}#content-asm #asm-log{flex:1;overflow-y:auto;background:#0d0d0d;border:1px solid var(--border-light);border-radius:6px;padding:8px;font-family:var(--mono-font);font-size:10px;line-height:1.5;color:var(--text-secondary);min-height:0;white-space:pre-wrap;word-break:break-all}#content-asm .asm-help{margin-top:4px;font-size:10px;color:var(--text-secondary)}#content-asm .asm-help summary{cursor:pointer;font-size:11px;font-weight:600;color:var(--accent);padding:4px 0}#content-asm .asm-help-table{width:100%;border-collapse:collapse;margin:6px 0;font-size:10px}#content-asm .asm-help-table th,#content-asm .asm-help-table td{text-align:left;padding:2px 6px;border-bottom:1px solid var(--border-light)}#content-asm .asm-help-table th{color:var(--text-primary);font-weight:600}#content-asm .asm-help-table td:first-child{font-family:var(--mono-font);color:var(--accent)}#content-asm .asm-help-table td:nth-child(2){font-family:var(--mono-font)}#content-asm .asm-help-note{margin:4px 0;line-height:1.5}#content-asm .asm-help-note code{background:var(--bg-tertiary);padding:1px 4px;border-radius:3px;font-family:var(--mono-font);font-size:9px}#probe-tooltip{position:fixed;padding:6px 10px;background:var(--bg-tertiary);border:1px solid var(--border-light);border-radius:6px;font-size:12px;font-family:var(--mono-font);color:var(--accent);pointer-events:none;z-index:999}::-webkit-scrollbar{width:5px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--border-light);border-radius:3px}::-webkit-scrollbar-thumb:hover{background:#544a40}.panel-tabs{display:flex;border-bottom:1px solid var(--border);margin-bottom:12px;flex-shrink:0}.panel-tab{flex:1;padding:8px 12px;background:none;border:none;border-bottom:2px solid transparent;color:var(--text-secondary);font-family:var(--ui-font);font-size:12px;font-weight:500;cursor:pointer;transition:color .25s cubic-bezier(.4,0,.2,1),border-color .25s cubic-bezier(.4,0,.2,1)}.panel-tab:hover{color:var(--text-primary)}.panel-tab.active{color:var(--accent);border-bottom-color:var(--accent)}.panel-content{display:flex;flex-direction:column;flex:1;min-height:0;overflow-y:auto}.panel-content.hidden{display:none!important}#node-info{margin-bottom:16px}#node-info-title{font-size:15px;font-weight:600;margin-bottom:4px;color:var(--accent)}#node-info-category{display:inline-block;font-size:10px;text-transform:uppercase;letter-spacing:1px;color:var(--text-secondary);background:var(--bg-tertiary);padding:2px 8px;border-radius:4px;margin-bottom:10px}#node-info-body{font-size:13px;line-height:1.6;color:var(--text-primary);margin-bottom:12px}.node-truth-hint{font-family:var(--mono-font);font-size:11px;color:var(--text-secondary);background:var(--bg-secondary);padding:8px 10px;border-radius:4px;border:1px solid var(--border-light);white-space:pre-wrap}.node-info-empty{font-size:12px;color:var(--text-secondary);text-align:center;padding:32px 16px;line-height:1.6}.node-info-empty.hidden{display:none!important}.node-info-library{display:block;margin-top:12px;font-size:12px;color:var(--accent);text-decoration:none;font-weight:500;transition:opacity .2s}.node-info-library:hover{opacity:.7}.node-info-library.hidden{display:none!important}body.sandbox-mode #level-info,body.sandbox-mode #truth-table-container,body.sandbox-mode #test-status,body.sandbox-mode #test-table,body.sandbox-mode #btn-test,body.sandbox-mode #btn-hint{display:none}#content-ai-tutor{display:flex;flex-direction:column;gap:10px;overflow:hidden}.ai-actions{display:flex;gap:6px;flex-shrink:0}.ai-action-btn{flex:1;padding:6px 8px;border:1px solid var(--border-light);border-radius:6px;background:var(--bg-tertiary);color:var(--text-primary);font-family:var(--ui-font);font-size:10px;cursor:pointer;transition:background .2s,border-color .2s;text-align:center;line-height:1.2}.ai-action-btn:hover{background:#2d2822;border-color:var(--accent);color:var(--accent)}.ai-action-sos{border-color:#ff44444d;color:var(--danger)}.ai-action-sos:hover{background:#ff44441a;border-color:var(--danger)}.ai-messages{flex:1;overflow-y:auto;display:flex;flex-direction:column;gap:8px;padding:4px 0;min-height:0}.ai-message{max-width:90%;padding:8px 12px;border-radius:8px;font-size:12px;line-height:1.5;word-wrap:break-word}.ai-message.user{align-self:flex-end;background:var(--accent);color:#fff}.ai-message.assistant{align-self:flex-start;background:var(--bg-tertiary);color:var(--text-primary)}.ai-message.assistant p{margin-bottom:6px}.ai-message.assistant p:last-child{margin-bottom:0}.ai-message.assistant ul,.ai-message.assistant ol{margin:4px 0 4px 16px}.ai-message.assistant li{margin-bottom:2px}.ai-message.assistant code{background:var(--bg-secondary);padding:1px 4px;border-radius:3px;font-family:var(--mono-font);font-size:11px}.ai-message.assistant pre{background:var(--bg-secondary);padding:8px;border-radius:4px;overflow-x:auto;margin:6px 0}.ai-message.assistant pre code{background:none;padding:0}.ai-message.assistant strong{font-weight:600}.ai-message.assistant em{font-style:italic}.ai-message-error{align-self:center;max-width:90%;padding:8px 12px;border-radius:8px;font-size:11px;line-height:1.5;background:#ff444414;border:1px solid rgba(255,68,68,.2);color:var(--danger);text-align:center}.ai-message-thinking{align-self:flex-start;padding:8px 12px;font-size:11px;color:var(--text-secondary)}.ai-token-usage{margin-top:6px;font-size:10px;color:var(--text-secondary);opacity:.6}.ai-message-thinking:after{content:"...";animation:ai-dot-pulse 1.5s infinite}@keyframes ai-dot-pulse{0%,to{opacity:.3}50%{opacity:1}}.ai-input-row{display:flex;gap:8px;align-items:flex-end;flex-shrink:0}.ai-input{flex:1;background:var(--bg-secondary);border:1px solid var(--border-light);border-radius:6px;color:var(--text-primary);font-family:var(--ui-font);font-size:12px;padding:8px 10px;resize:none;line-height:1.4}.ai-input:focus{outline:none;border-color:var(--accent)}.ai-input::placeholder{color:var(--text-secondary)}.ai-send-btn{width:36px;height:36px;border-radius:6px;border:1px solid var(--accent);background:var(--accent);color:#fff;font-size:14px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:background .2s,transform .15s;flex-shrink:0}.ai-send-btn:hover{background:#a88072;transform:scale(1.05)}.ai-send-btn:active{transform:scale(.95)}.ai-send-btn:disabled{opacity:.4;cursor:default;pointer-events:none}.ai-quota{font-size:10px;color:var(--text-secondary);text-align:right;padding:2px 4px;flex-shrink:0}.ai-quota-warn{color:var(--danger)}.ai-unavailable{text-align:center;padding:32px 16px;color:var(--text-secondary);font-size:13px;line-height:1.6}#content-ai-tutor.ai-disabled .ai-actions,#content-ai-tutor.ai-disabled .ai-input-row{display:none}#btn-hint img,#btn-reset img{filter:brightness(0) invert(1)}[data-theme=light] #btn-hint img,[data-theme=light] #btn-reset img{filter:none}
