:root{--bg:#eef3f7;--ink:#16202a;--muted:#647486;--panel:#fff;--line:#d9e2ec;--accent:#0f766e;--accent-strong:#115e59;--energy:#f5b841;--danger:#c2410c;--tile:#d8edf0;--tile-edge:#a8cad0}*{box-sizing:border-box}body{min-height:100vh;color:var(--ink);background:var(--bg);margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}[hidden]{display:none!important}.sr-only{clip:rect(0, 0, 0, 0);white-space:nowrap;border:0;width:1px;height:1px;padding:0;position:absolute;overflow:hidden}a{color:inherit;text-decoration:none}button{border:1px solid var(--line);color:var(--ink);font:inherit;cursor:pointer;background:#f8fafc;border-radius:8px;font-weight:700;transition:transform .12s,border-color .12s,background .12s}.menu-shell{align-content:center;gap:30px;width:min(920px,100%);min-height:100vh;margin:0 auto;padding:24px;display:grid}.menu-hero{gap:14px;display:grid}.brand-logo{object-fit:contain;width:auto;max-width:100%;display:block}.brand-logo-hero{justify-self:start;height:clamp(78px,12vw,132px)}.brand-logo-panel{height:46px}.brand-logo-game{max-width:170px;height:34px}.admin-brand{align-items:center;gap:10px;min-width:0;display:flex}.admin-badge{min-height:24px;color:var(--accent-strong);text-transform:uppercase;background:#0f766e14;border:1px solid #0f766e38;border-radius:999px;place-items:center;padding:0 9px;font-size:11px;font-weight:900;display:inline-grid}.menu-hero p:last-child{max-width:560px;color:var(--muted);font-size:18px;line-height:1.5}.mode-menu{grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;display:grid}.mode-card{border:1px solid var(--line);background:#fff;border-radius:8px;align-content:start;gap:8px;min-height:170px;padding:22px;display:grid;box-shadow:0 18px 44px #2034471a}.mode-card:hover{border-color:var(--accent)}.mode-card:hover strong{color:var(--accent-strong)}.mode-card strong{font-size:28px}.mode-card span:last-child{color:var(--muted);line-height:1.45}.mode-label{color:var(--accent);letter-spacing:.08em;text-transform:uppercase;font-size:12px;font-weight:900}button:hover:not(:disabled){border-color:var(--accent);color:var(--accent-strong);background:#fff}button:active:not(:disabled){transform:translateY(1px)}button:disabled{cursor:not-allowed;opacity:.55}.app-shell{grid-template-columns:minmax(0,1fr) 380px;gap:18px;width:min(1380px,100%);min-height:100vh;margin:0 auto;padding:18px;display:grid}.game-panel{align-content:start;place-items:start center;gap:12px;min-width:0;display:grid}.canvas-frame{width:100%;max-width:960px;position:relative}#game-canvas,#editor-canvas{aspect-ratio:48/31;background:#dfeaf1;border:1px solid #c8d7e2;border-radius:8px;width:100%;max-width:960px;display:block;box-shadow:0 20px 50px #2034471f}.view-toggle-btn{color:#fff;background:var(--accent);border-color:#0f766e61;min-height:36px;padding:0 12px;font-size:13px}.view-toggle-btn:hover:not(:disabled),.level-btn.active:hover:not(:disabled),.editor-tool.active:hover:not(:disabled),.primary-btn:hover:not(:disabled){border-color:var(--accent-strong);color:#fff;background:var(--accent-strong)}.camera-controls{grid-template-columns:repeat(4,minmax(96px,1fr));gap:8px;width:min(600px,100%);display:grid}.camera-controls button{min-height:40px;padding:0 10px}.control-panel{-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);background:#ffffffb8;border-left:1px solid #d6e0ea;flex-direction:column;gap:16px;min-width:0;padding:18px;display:flex}.brand-block{flex-direction:column;gap:12px;padding-bottom:4px;display:flex}.top-link-row{justify-content:space-between;align-items:center;gap:14px;display:flex}.top-link-row a,.small-link-btn{border:1px solid var(--line);min-height:32px;color:var(--ink);background:#f8fafc;border-radius:8px;place-items:center;padding:0 10px;font-size:12px;font-weight:800;display:inline-grid}.top-link-row a:hover,.small-link-btn:hover{border-color:var(--accent);color:var(--accent-strong);background:#fff}.kicker{color:var(--accent);letter-spacing:.08em;text-transform:uppercase;margin:0 0 4px;font-size:13px;font-weight:800}h1,h2,p{margin:0}h1{font-size:32px;line-height:1.05}h2{font-size:15px}#level-summary{color:var(--muted);margin-top:10px;font-size:14px;line-height:1.45}.level-row{grid-template-columns:repeat(5,minmax(0,1fr));gap:8px;display:grid}.level-empty{min-height:34px;color:var(--muted);border:1px dashed #c8d7e2;border-radius:8px;place-items:center;font-size:13px;font-weight:800;display:grid}.level-section{gap:10px;display:grid}.level-actions{align-items:center;gap:8px;display:inline-flex}.command-actions{justify-content:flex-end;align-items:center;gap:8px;display:inline-flex}.level-actions button{min-height:32px;padding:0 10px;font-size:12px}.chapter-select-label{color:var(--muted);gap:5px;font-size:12px;font-weight:900;display:grid}.chapter-select-label select{border:1px solid var(--line);width:100%;min-height:38px;color:var(--ink);font:inherit;background:#f8fafc;border-radius:8px;padding:0 10px;font-size:13px;font-weight:800}.lock-toggle{color:var(--muted);white-space:nowrap;align-items:center;gap:7px;font-size:13px;font-weight:800;display:inline-flex}.lock-toggle input{width:16px;height:16px;accent-color:var(--accent)}.level-btn{grid-template-rows:18px 16px;align-content:center;justify-items:center;gap:2px;min-height:44px;padding:6px 4px;line-height:1;display:grid}.level-btn.active{border-color:var(--accent);color:#fff;background:var(--accent)}.level-btn.locked{color:#8695a5}.level-number{font-size:15px;font-weight:900}.level-stars{color:#111827;letter-spacing:1px;min-height:14px;font-size:13px;font-weight:900}.level-btn.active .level-stars{color:#fff}.level-btn.locked .level-stars{color:#9aa8b6}.panel-section{gap:10px;display:grid}.hint-section{padding-top:2px}.hint-list{color:var(--muted);gap:7px;margin:0;padding-left:20px;font-size:13px;line-height:1.35;display:grid}.hint-list li{padding-left:2px}.hint-list .hint-empty{color:#8a99a8;margin-left:-20px;font-style:italic;list-style:none}.editor-hints,.editor-solution{border:1px solid var(--line);background:#fff;border-radius:8px;gap:8px;padding:10px;display:grid}.solution-list{gap:8px;display:grid}.solution-row{gap:4px;display:grid}.solution-label{color:var(--muted);letter-spacing:.04em;text-transform:uppercase;font-size:11px;font-weight:900}.solution-commands{flex-wrap:wrap;gap:5px;display:flex}.solution-chip{min-height:24px;color:var(--ink);background:#f8fafc;border:1px solid #c9d7e5;border-radius:6px;place-items:center;padding:0 7px;font-size:12px;font-weight:900;display:inline-grid}.solution-empty{color:#8a99a8;font-size:13px;font-style:italic}.editor-panel{border:1px solid var(--line);background:#f8fafcdb;border-radius:8px;padding:12px}.editor-tools{grid-template-columns:repeat(4,minmax(0,1fr));gap:6px;display:grid}.editor-tool{min-height:36px;padding:0 6px;font-size:12px}.editor-tool.active{border-color:var(--accent);color:#fff;background:var(--accent)}.editor-fields{grid-template-columns:repeat(2,minmax(0,1fr));gap:8px;display:grid}.editor-fields label{color:var(--muted);gap:4px;font-size:12px;font-weight:800;display:grid}.editor-fields select{border:1px solid var(--line);min-height:36px;color:var(--ink);font:inherit;background:#fff;border-radius:8px;padding:0 10px;font-weight:800}.topdown-grid{border:1px solid var(--line);background:#fff;border-radius:8px;gap:4px;padding:8px;display:grid}.topdown-cell{aspect-ratio:1;color:#9aa8b6;background:#f8fafc;border:1px dashed #c5d4e2;border-radius:6px;place-items:center;min-width:0;font-size:11px;font-weight:900;line-height:1;display:grid;position:relative}.topdown-cell.tile{color:#174147;background:#d8edf0;border-style:solid;border-color:#9ebfca}.topdown-cell.h1{background:#b9dde3}.topdown-cell.h2{background:#94c4ce}.topdown-cell.node{border-color:var(--accent);box-shadow:inset 0 0 0 2px #0f766e61}.topdown-cell.blocked{color:#475569;background:#c7d1d8;border-color:#64748b;box-shadow:inset 0 0 0 2px #47556947}.topdown-cell.robot:after{content:"";background:var(--energy);border-radius:999px;width:8px;height:8px;position:absolute;top:4px;right:4px;box-shadow:0 0 0 2px #ffffffbf}.editor-help{color:var(--muted);font-size:12px;line-height:1.35}#editor-json{resize:vertical;border:1px solid var(--line);width:100%;min-height:130px;color:var(--ink);background:#fff;border-radius:8px;padding:10px;font:12px/1.45 Consolas,Courier New,monospace}.editor-actions{grid-template-columns:repeat(2,minmax(0,1fr));gap:8px;display:grid}.editor-actions button{min-height:36px}.section-heading{justify-content:space-between;align-items:center;gap:12px;display:flex}.section-heading button{min-height:34px;padding:0 12px;font-size:13px}.command-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:8px;display:grid}.command-btn{text-align:left;justify-content:flex-start;align-items:center;gap:10px;min-height:54px;padding:10px;display:flex}.command-icon{color:#fff;background:var(--accent);border-radius:8px;flex:0 0 30px;place-items:center;width:30px;height:30px;font-size:18px;display:grid}.command-icon-forward{font-size:25px;font-weight:900;line-height:1}.command-label{gap:2px;min-width:0;display:grid}.command-label strong{font-size:14px}.command-label span{color:var(--muted);font-size:12px;line-height:1.2}.program-section{min-height:180px}.p1-section,.p2-section{min-height:132px}.program-tab{min-height:32px;padding:0 12px}.program-tab.active{border-color:var(--accent);color:#fff;background:var(--accent)}.program-tab.active:hover:not(:disabled){border-color:var(--accent-strong);color:#fff;background:var(--accent-strong)}#slot-count,#p1-slot-count{color:var(--muted);font-size:13px;font-weight:800}.program-slots{grid-template-columns:repeat(4,minmax(0,1fr));gap:8px;display:grid}.slot{color:#8797a6;background:#ffffffa6;border:1px dashed #b8c9d8;border-radius:8px;place-items:center;min-height:48px;font-weight:800;display:grid}.slot.filled{color:var(--ink);background:#fff;border-style:solid}.slot.command-forward{font-size:22px;font-weight:900;line-height:1}.slot.active{border-color:var(--energy);box-shadow:0 0 0 3px #f5b84138}.run-row{grid-template-columns:1.2fr 1fr 1fr;gap:8px;display:grid}.run-row button{min-height:46px}.primary-btn{border-color:var(--accent);color:#fff;background:var(--accent)}.primary-btn:hover:not(:disabled){border-color:var(--accent-strong);color:#fff;background:var(--accent-strong)}.status-line{min-height:42px;color:var(--muted);font-size:14px;line-height:1.45}.status-line.success{color:var(--accent-strong);font-weight:800}.status-line.fail{color:var(--danger);font-weight:800}@media (width<=980px){.app-shell{grid-template-columns:1fr;padding:12px}.control-panel{border-top:1px solid #d6e0ea;border-left:0}}@media (width<=560px){.mode-menu{grid-template-columns:1fr}.menu-hero h1{font-size:40px}.brand-logo-hero{height:82px}.brand-logo-panel{height:38px}.brand-logo-game{max-width:160px;height:32px}.command-grid,.run-row{grid-template-columns:1fr}.camera-controls{grid-template-columns:repeat(2,minmax(0,1fr))}.program-slots{grid-template-columns:repeat(3,minmax(0,1fr))}h1{font-size:28px}}