:root{color-scheme:dark;--bg:#0d111a;--panel:#151c29;--line:#2b3547;--text:#e4eaf5;--muted:#9baac1;--accent:#78e0c0}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font:16px/1.5 system-ui,sans-serif}header{padding:22px 32px;display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line)}header strong{font-size:22px}header span{color:var(--muted)}.mark{color:var(--accent);margin-right:12px}.badge{font:12px monospace;letter-spacing:1px}main{display:grid;grid-template-columns:44% 1fr;gap:20px;padding:24px 32px}.panel{border:1px solid var(--line);border-radius:12px;background:var(--panel);overflow:hidden}.bar{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:1px solid var(--line);gap:12px}h1,h2{font-size:16px;margin:0}select,button{font:14px system-ui;color:var(--text);background:#202b3c;border:1px solid #3b485e;border-radius:7px;padding:9px 12px;cursor:pointer}button:hover{border-color:var(--accent)}button:focus-visible,select:focus-visible,textarea:focus-visible{outline:2px solid var(--accent);outline-offset:-2px}button:disabled{opacity:.5;cursor:default}#run{background:var(--accent);color:#10261e;border:0;font-weight:700;padding:11px 22px}.codebox{display:flex;background:#101622;height:440px}.codebox pre{margin:0;padding:20px 10px 20px 16px;text-align:right;color:#65758e;overflow:hidden;border-right:1px solid #202b3c;width:46px;flex-shrink:0;font:15px/1.7 monospace}textarea{resize:none;border:0;background:transparent;color:#d2e8ff;flex:1;min-width:0;padding:20px 16px;font:15px/1.7 monospace;white-space:pre;tab-size:2;outline:0}.runbar{padding:16px 20px;display:flex;align-items:center;justify-content:space-between;border-top:1px solid var(--line);gap:8px}.runbar span,#status{font-size:14px;color:var(--muted)}.syntax{padding:14px 20px;border-top:1px solid var(--line);font-size:14px;color:var(--muted)}summary{cursor:pointer}nav{display:flex;padding:10px 12px;gap:6px;border-bottom:1px solid var(--line);overflow:auto}nav button{border:0;background:transparent;color:var(--muted);white-space:nowrap}nav .active{background:#24483f;color:var(--accent)}#view{padding:20px;max-height:650px;overflow:auto;min-height:470px}.empty{color:var(--muted);margin-top:100px;text-align:center}pre{white-space:pre-wrap;overflow-wrap:anywhere;font:14px/1.65 monospace}.console{background:#0c121c;padding:18px;border-radius:8px;min-height:160px}.error{color:#ff9d9d}.meta{font-size:14px;color:var(--muted)}table{border-collapse:collapse;width:100%;font:14px/1.6 monospace}th,td{padding:7px 8px;text-align:left;border-bottom:1px solid var(--line);overflow-wrap:anywhere}th{color:var(--muted);font-weight:400}.current{background:#254a40;color:#a0f7dc}.tree details{margin-left:16px;border-left:1px solid var(--line);padding-left:12px}.tree p{margin:6px 0 6px 16px;font-family:monospace;font-size:14px}.controls{display:flex;gap:8px;align-items:center;flex-wrap:wrap}.controls input{width:100%;accent-color:var(--accent)}.runtime{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:16px}.runtime section{border:1px solid var(--line);border-radius:8px;padding:12px;min-width:0}.runtime h3{margin:0 0 8px;font-size:14px;color:var(--muted)}.chip{display:inline-block;background:#254a40;border:1px solid #477969;border-radius:5px;padding:4px 10px;margin:4px;font:14px monospace}footer{padding:0 32px 24px;color:var(--muted);font-size:14px;display:flex;justify-content:space-between;gap:12px}@media(max-width:950px){main{grid-template-columns:1fr;padding:16px}header{padding:18px}header .badge{display:none}.codebox{height:330px}footer{padding:0 16px 20px;flex-direction:column}.runtime{grid-template-columns:1fr}}@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto}}
.header-actions,.run-actions{display:flex;gap:16px;align-items:center}[hidden]{display:none!important}.syntax button{display:block;margin-top:12px;color:var(--accent);background:transparent}dialog{width:min(800px,calc(100vw - 32px));max-height:85vh;padding:0;background:var(--panel);color:var(--text);border:1px solid #45536d;border-radius:12px}dialog::backdrop{background:#030711bd}.guide-header{position:sticky;top:0;background:var(--panel);display:flex;justify-content:space-between;align-items:center;gap:16px;padding:18px 24px;border-bottom:1px solid var(--line)}.guide-content{padding:12px 24px 24px}.guide-content h3{font-size:18px;color:var(--accent);margin:28px 0 12px}.guide-content p{font-size:16px;color:#becce0}.guide-content .guide-intro{font-size:18px;color:var(--text)}.guide-content pre{background:#0c121c;border:1px solid var(--line);border-radius:8px;padding:16px;line-height:1.7}.guide-content code{color:#a1efd7}.guide-content a{color:var(--accent)}.guide-content td{font-family:system-ui;font-size:14px}.table-scroll{overflow:auto}.guide-credit{padding-top:20px;border-top:1px solid var(--line)}.inspect nav{flex-wrap:wrap}#status{max-width:60%;text-align:right}.trace-note{color:#e8c784}@media(max-width:550px){header strong{font-size:18px}header span:not(.badge){font-size:14px}.header-actions{gap:0}.header-actions button{padding:8px;font-size:13px}.bar{padding:14px;flex-wrap:wrap}main{gap:16px}.runbar{padding:14px;flex-wrap:wrap}.runbar span{font-size:13px}.guide-header{padding:14px}.guide-content{padding:10px 16px 20px}.runtime table{font-size:13px}}