:root{--bg: #0e1116;--panel: #161c24;--line: #2a323d;--ink: #eef3f7;--dim: #93a4b3;--accent: #5a9c6a;--accent2: #7fd49a;--wall: #1a2129;--floor: #2a3744;--gem: #6fd0e0;--exit: #d8b24a;--enemy: #d05a6a;--hero: #7fd49a;--ip: #f0c050;--bad: #5a1f26}*{box-sizing:border-box}html,body{margin:0;height:100%}body{background:radial-gradient(900px 560px at 50% -8%,#16202a,var(--bg));color:var(--ink);font-family:system-ui,-apple-system,Segoe UI,sans-serif;display:flex;justify-content:center}#app{width:100%;max-width:760px;padding:12px 12px 28px}header{text-align:center;margin-bottom:6px}h1{margin:0;font-size:26px;letter-spacing:5px;font-weight:800;color:var(--accent2)}.sub{margin:3px 0 0;color:var(--dim);font-size:13px}.bar{display:flex;gap:8px;justify-content:center;flex-wrap:wrap;align-items:center;margin:10px 0}.seg{display:inline-flex;background:var(--panel);border:1px solid var(--line);border-radius:999px;overflow:hidden}.seg button{background:none;border:none;color:var(--dim);padding:6px 13px;font:600 13px system-ui;cursor:pointer}.seg button.active{background:var(--accent);color:#06170c}.btn{background:var(--panel);border:1px solid var(--line);color:var(--ink);padding:7px 14px;border-radius:999px;font:700 13px system-ui;cursor:pointer}.btn:hover{border-color:var(--accent2)}.btn.primary{background:var(--accent);color:#06170c;border-color:var(--accent)}.btn:disabled{opacity:.45;cursor:default}.main{display:flex;gap:14px;flex-wrap:wrap;justify-content:center;align-items:flex-start}.left{flex:1 1 300px;min-width:280px}.right{flex:1 1 320px;min-width:300px}.levelhead{display:flex;justify-content:space-between;align-items:baseline;margin-bottom:6px}.levelhead .lname{font-weight:800;color:var(--accent2);font-size:15px}.levelhead .lmeta{color:var(--dim);font-size:12px}.stage{position:relative}canvas{width:100%;display:block;background:#0a0e13;border:1px solid var(--line);border-radius:10px}.status{margin-top:8px;min-height:20px;text-align:center;font:600 13px ui-monospace,monospace;color:var(--dim)}.status.good{color:var(--accent2)}.status.bad{color:#ff9aa6}.editor{position:relative}.editwrap{position:relative;border:1px solid var(--line);border-radius:10px;overflow:hidden;background:#0a0e13}textarea{width:100%;height:240px;resize:vertical;border:none;outline:none;background:transparent;color:var(--ink);padding:10px 12px;font:13px/1.5 ui-monospace,SF Mono,Consolas,monospace;tab-size:2}.editlabel{display:flex;justify-content:space-between;align-items:center;margin-bottom:6px}.editlabel .t{font-weight:700;font-size:13px}.editlabel .h{color:var(--dim);font-size:12px}.runbar{display:flex;gap:8px;margin-top:10px;flex-wrap:wrap}.ticks{margin-left:auto;align-self:center;font:700 13px ui-monospace,monospace;color:var(--dim)}.ticks b{color:var(--accent2)}.console{margin-top:10px;background:#0a0e13;border:1px solid var(--line);border-radius:8px;padding:8px 10px;min-height:40px;font:12px/1.5 ui-monospace,monospace;color:var(--dim);white-space:pre-wrap}.console .err{color:#ff9aa6}.console .ok{color:var(--accent2)}.console .ptr{color:var(--ip)}.legend{display:flex;gap:12px;flex-wrap:wrap;justify-content:center;margin-top:8px;color:var(--dim);font-size:11px}.legend i{display:inline-block;width:10px;height:10px;border-radius:2px;vertical-align:middle;margin-right:4px}.overlay{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;background:#080c10d1;border-radius:10px;backdrop-filter:blur(3px)}.overlay.hidden{display:none}.card{background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:22px 26px;text-align:center;max-width:320px}.card h2{margin:0 0 6px;font-size:22px;color:var(--accent2)}.card p{margin:6px 0;color:var(--dim);font-size:14px}.card .row{display:flex;gap:8px;justify-content:center;margin-top:14px}.steps{display:flex;gap:6px;justify-content:center;margin:8px 0}.steps .dot{width:18px;height:18px;border-radius:50%;background:var(--panel);border:1px solid var(--line);color:var(--dim);display:flex;align-items:center;justify-content:center;font:700 10px system-ui}.steps .dot.done{background:var(--accent);color:#06170c;border-color:var(--accent)}.steps .dot.cur{box-shadow:0 0 0 2px var(--accent2);color:var(--accent2)}.help{color:var(--dim);font-size:12px;line-height:1.55;margin-top:12px}.help code{background:#0a0e13;border:1px solid var(--line);border-radius:4px;padding:1px 5px;color:var(--accent2)}