/* Student Code Arena - flat theme, solid colors only, no gradients. */
/* Spacing scale: 4 / 8 / 12 / 16 / 24 / 32. Page container max 1120px. */
:root{
  --bg:#ffffff;--surface:#f6f8fa;--panel:#eef1f4;--border:#d8dee4;
  --text:#1f2328;--muted:#59636e;--accent:#d9453d;--accent-ink:#ffffff;
  --ok:#2da44e;--warn:#9a6700;--warn-bg:#fff8c5;--err:#cf222e;
  --link:#0969da;--me:#ddf4ff;
  --console-bg:#15171c;--console-text:#d7dae0;--console-mut:#8b949e;
  --console-pass:#3fb950;--console-fail:#f85149;--console-warn:#d29922;
  --m1:#9a6700;--m2:#6e7781;--m3:#a47551;
  --py-blue:#3776AB;--py-yellow:#b58900;--c-blue:#2f6db3;
  --radius:6px;
  --sans:-apple-system,BlinkMacSystemFont,"Segoe UI",Helvetica,Arial,sans-serif;
  --mono:ui-monospace,SFMono-Regular,"JetBrains Mono",Menlo,Consolas,monospace;
}
@media (prefers-color-scheme:dark){
  :root{--bg:#1b1c21;--surface:#23252b;--panel:#2a2d34;--border:#3a3e46;
    --text:#e6e8eb;--muted:#9aa1ab;--accent:#e1544b;
    --ok:#3fb950;--warn:#d29922;--warn-bg:#3a2f10;--err:#f85149;
    --link:#79c0ff;--me:#132f45;
    --console-bg:#101216;--console-text:#d7dae0;
    --m1:#d29922;--m2:#8b949e;--m3:#c98a5b;
    --py-yellow:#e3b341;--c-blue:#79b8ff;}
}
[data-theme="dark"]{--bg:#1b1c21;--surface:#23252b;--panel:#2a2d34;--border:#3a3e46;
  --text:#e6e8eb;--muted:#9aa1ab;--accent:#e1544b;
  --ok:#3fb950;--warn:#d29922;--warn-bg:#3a2f10;--err:#f85149;
  --link:#79c0ff;--me:#132f45;
  --console-bg:#101216;--console-text:#d7dae0;
  --m1:#d29922;--m2:#8b949e;--m3:#c98a5b;
  --py-yellow:#e3b341;--c-blue:#79b8ff;}
[data-theme="light"]{--bg:#ffffff;--surface:#f6f8fa;--panel:#eef1f4;--border:#d8dee4;
  --text:#1f2328;--muted:#59636e;--accent:#d9453d;
  --ok:#2da44e;--warn:#9a6700;--warn-bg:#fff8c5;--err:#cf222e;
  --link:#0969da;--me:#ddf4ff;
  --console-bg:#15171c;--console-text:#d7dae0;
  --m1:#9a6700;--m2:#6e7781;--m3:#a47551;
  --py-yellow:#b58900;--c-blue:#2f6db3;}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--text);font:15px/1.5 var(--sans)}
h1{font-size:24px;line-height:1.25;margin:24px 0 8px;letter-spacing:-.01em}
h2{font-size:17px;margin:16px 0 8px}
p{margin:8px 0}
a{color:var(--link);text-decoration:none}
a:hover{text-decoration:underline}
:focus-visible{outline:2px solid var(--link);outline-offset:2px;border-radius:4px}

/* Page container + vertical rhythm */
.wrap{max-width:1120px;margin:0 auto;padding:0 16px 32px}
.wrap.narrow{max-width:640px}
main.wrap > :first-child{margin-top:16px}

/* Header / nav rhythm */
.topbar{background:var(--surface);border-bottom:1px solid var(--border)}
.topbar-in{display:flex;align-items:center;gap:16px;min-height:56px;flex-wrap:wrap;padding-top:8px;padding-bottom:8px}
.brand{font-weight:700;color:var(--text);font-size:17px;letter-spacing:-.01em;line-height:32px}
.topnav{margin-left:auto;display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.topnav a{line-height:32px;padding:0 4px}
.search input{width:220px}

/* Consistent controls: 36px height, aligned labels above inputs */
input,textarea,select{background:var(--bg);color:var(--text);border:1px solid var(--border);
  border-radius:var(--radius);padding:0 10px;min-height:36px;font:inherit}
textarea{font-family:var(--mono);font-size:13px;width:100%;padding:8px 10px;line-height:1.55}
select{padding-right:28px}
button{background:var(--surface);color:var(--text);border:1px solid var(--border);
  border-radius:var(--radius);padding:0 14px;min-height:36px;cursor:pointer;font:inherit;
  display:inline-flex;align-items:center;justify-content:center;gap:8px}
button:hover{border-color:var(--muted)}
.btn{background:var(--accent);color:var(--accent-ink);border:1px solid var(--accent);
  border-radius:var(--radius);padding:0 16px;min-height:36px;cursor:pointer;font:inherit}
.btn:hover{filter:brightness(.95)}
.btn.primary{background:var(--accent)}
.btn:disabled,.btn[disabled],button:disabled{opacity:.55;cursor:not-allowed}
.iconbtn,.linkbtn{background:none;border:1px solid var(--border);border-radius:var(--radius);
  color:var(--text);padding:0 12px;min-height:32px;cursor:pointer;font:inherit}
form.inline{display:inline}
.row{display:flex;gap:8px;align-items:center;flex-wrap:wrap}

/* Form fields: label above input, helper text below */
.form label,.fld{display:flex;flex-direction:column;gap:4px;font-weight:600;font-size:13px}
.form label{margin:12px 0}
.fld-label{font-size:12px;color:var(--muted);font-weight:600}
.fld.grow{flex:1;min-width:140px}
.form input,.form textarea,.form select{width:100%;font-weight:400}
.help{font-size:12px;color:var(--muted);font-weight:400;margin:0}

/* Cards */
.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:16px;margin:16px 0}
.card > :first-child{margin-top:0}
.card > :last-child{margin-bottom:0}

/* Tables: sticky headers, row hover, right-aligned numerics */
.tbl{width:100%;border-collapse:collapse;margin:16px 0;background:var(--bg)}
.tbl th,.tbl td{border:1px solid var(--border);padding:8px 12px;text-align:left;font-size:14px;vertical-align:middle}
.tbl thead th{background:var(--surface);position:sticky;top:0;z-index:1;font-size:12px;
  text-transform:uppercase;letter-spacing:.04em;color:var(--muted)}
.tbl tbody tr:hover td{background:var(--surface)}
.tbl tr.io td{background:var(--surface)}
.tbl tr.me td{background:var(--me)}
.tbl td.num,.tbl th.num{text-align:right;font-variant-numeric:tabular-nums;white-space:nowrap}

/* Chips + filters */
.chip{display:inline-flex;align-items:center;min-height:28px;border:1px solid var(--border);
  border-radius:20px;padding:2px 12px;font-size:12px;background:var(--surface);color:var(--text);white-space:nowrap}
a.chip:hover{text-decoration:none;border-color:var(--muted)}
.chip.active{background:var(--accent);border-color:var(--accent);color:var(--accent-ink)}
.filters{display:flex;gap:8px;align-items:center;margin:16px 0;flex-wrap:wrap}
.spacer{flex:1}
.muted{color:var(--muted)}
.small{font-size:12px}
.ok{color:var(--ok);font-weight:600}
.alert{padding:10px 12px;border-radius:var(--radius);border:1px solid var(--border)}
.alert.err{border-color:var(--err);color:var(--err);background:var(--surface)}
.empty{border:1px dashed var(--border);border-radius:var(--radius);padding:24px;text-align:center;color:var(--muted);margin:16px 0}
.tabs{display:flex;gap:4px;border-bottom:1px solid var(--border);margin:16px 0 8px;flex-wrap:wrap}
.tabs a{padding:8px 14px;color:var(--muted);border-bottom:2px solid transparent;line-height:24px}
.tabs a.active{color:var(--text);border-bottom-color:var(--accent);font-weight:600}
.tabs a.right{margin-left:auto}
.prose pre{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
  padding:12px;overflow:auto;font-family:var(--mono);font-size:13px}
.prose code{font-family:var(--mono);font-size:13px}

/* ---- SVG icon bounds: no icon may blow up layout ---- */
svg{flex-shrink:0}
svg.licon{width:16px;height:16px;max-width:16px;max-height:16px;flex:none;vertical-align:-3px;display:inline-block}
.solvebtn svg,.topnav svg,.tabbar svg{width:16px;height:16px;max-width:16px;max-height:16px;flex:none}

/* Challenge solve buttons with brand icons */
.solvebtn{display:inline-flex;align-items:center;gap:8px;border:1px solid var(--border);
  border-radius:var(--radius);padding:0 12px;min-height:32px;font-size:13px;font-weight:600;
  color:var(--text);background:var(--surface);white-space:nowrap;line-height:1}
.solvebtn:hover{text-decoration:none}
.solvebtn.py:hover{border-color:var(--py-blue)}
.solvebtn.c:hover{border-color:var(--c-blue)}
.licon{width:16px;height:16px;flex:none}
.solve-cell{white-space:nowrap}
/* Solve entry dropdown: a single toggle button plus a native menu.
   The <summary> toggle only opens/closes the menu and never navigates;
   the menu links go to solve?lang=. Works with no JS (native <details>);
   JS only syncs aria-expanded and closes on Escape / outside click.
   Menu links keep the 16px official brand icons. */
.solvedrop{display:inline-flex;align-items:stretch}
.solvedrop.right{margin-left:auto;align-self:center}
.tabs .solvedrop.right{margin-top:4px;margin-bottom:4px}
.solvedrop .drop{display:inline-flex;position:relative}
.solvedrop summary.solvebtn{list-style:none;cursor:pointer;gap:8px}
.solvedrop summary.solvebtn::-webkit-details-marker{display:none}
.solvedrop summary.solvebtn::marker{content:""}
.solvedrop .chev{display:inline-block;font-size:11px;line-height:1;transition:transform .15s ease}
.solvedrop .drop[open] .chev{transform:rotate(180deg)}
.solvedrop .drop:not([open]) .drop-list{display:none}
.solvedrop .drop-list{position:absolute;right:0;top:calc(100% + 4px);z-index:20;display:flex;flex-direction:column;
  gap:2px;min-width:160px;background:var(--bg);border:1px solid var(--border);
  border-radius:var(--radius);padding:4px;box-shadow:0 8px 24px rgba(0,0,0,.18)}
.solvedrop .drop-list a{display:flex;align-items:center;gap:8px;padding:8px 10px;border-radius:4px;
  font-size:13px;font-weight:600;color:var(--text);white-space:nowrap}
.solvedrop .drop-list a:hover{background:var(--surface);text-decoration:none}
.solve-cell .solvedrop{margin:2px 4px 2px 0}
.solve-row .solvedrop{font-size:13px}
.solve-row{display:flex;gap:8px;margin:16px 0;flex-wrap:wrap}

/* Leaderboard: one toolbar row, wraps on mobile */
.boardtools{margin:12px 0;display:flex;flex-direction:column;gap:8px}
.toolbar-row{display:flex;gap:16px;align-items:flex-end;flex-wrap:wrap}
.langswitch{display:flex;gap:8px;align-items:center}
.boardform{display:flex;gap:12px;align-items:flex-end;flex-wrap:wrap;flex:1}
.boardform input[type="search"]{min-width:200px}
.mypos{background:var(--me);border:1px solid var(--border);border-radius:var(--radius);padding:8px 12px}
.medal{display:inline-block;min-width:24px;height:24px;line-height:24px;text-align:center;border-radius:50%;
  color:#fff;font-size:12px;font-weight:700;padding:0 4px}
.medal.m1{background:var(--m1)}
.medal.m2{background:var(--m2)}
.medal.m3{background:var(--m3)}
.pager{display:flex;gap:12px;align-items:center;margin:12px 0}
.board th a{color:inherit}

/* Challenge cards grid (progressive: tables stay aligned too) */
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:16px;margin:16px 0}
.cards .card{margin:0;display:flex;flex-direction:column;gap:8px}

/* IDE layout: one resizable sidebar, editor pane, on-demand console.
   The sidebar width and console height ride on CSS vars so the drag
   handles below can update them live; Monaco's automaticLayout follows
   the flex layout and gets an explicit layout() nudge on drag end. */
.ide{display:flex;gap:0;height:calc(100vh - 57px);min-height:560px;max-width:1440px;margin:0 auto;
  --side-w:320px;--console-h:264px}
.ide-side{width:var(--side-w);flex:none;border-right:1px solid var(--border);background:var(--surface);
  display:flex;flex-direction:column;min-height:0;min-width:0;overflow:hidden}
.ide-split{flex:none;width:9px;margin:0 -2px;cursor:col-resize;position:relative;z-index:5;background:transparent;border:0;padding:0}
.ide-split::after{content:"";position:absolute;inset:0 auto 0 4px;width:1px;background:var(--border)}
.ide-split:hover::after,.ide-split:focus-visible::after{background:var(--link);width:2px}
.ide-split:focus-visible{outline:2px solid var(--link);outline-offset:-2px}
/* File tree lives in the Files side tab now (one merged sidebar) */
.side-panel [data-file-tree]{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:2px}
.side-panel [data-file-tree] li{display:flex;align-items:center;gap:8px;padding:6px 8px;border-radius:var(--radius);
  cursor:pointer;font-family:var(--mono);font-size:13px;border:1px solid transparent;min-height:32px}
.side-panel [data-file-tree] li:hover{background:var(--panel)}
.side-panel [data-file-tree] li.active{background:var(--surface);border-color:var(--border)}
.side-h{font-size:12px;text-transform:uppercase;color:var(--muted);margin:0 0 8px;letter-spacing:.04em}
.ficon{width:10px;height:10px;border-radius:50%;flex:none}
.ficon.py{background:var(--py-blue)}
.ficon.c{background:var(--c-blue)}
.ficon.other{background:var(--muted)}
.fname{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;flex:1}
.fdel{border:0;background:none;color:var(--muted);padding:0 4px;font-size:14px;line-height:1;min-height:0}
.fdel:hover{color:var(--err)}
.editorpane{flex:1;display:flex;flex-direction:column;min-width:0;min-height:0;background:var(--bg)}

/* Solve page: single sidebar with Files / Problem / Tests / Boards tabs */
.ide-side .side-tabs{display:flex;gap:2px;background:var(--surface);border-bottom:1px solid var(--border);
  padding:8px 8px 0;flex:none;overflow-x:auto}
.side-tabs button{border:1px solid var(--border);border-bottom:0;border-radius:6px 6px 0 0;
  background:var(--panel);padding:0 14px;min-height:34px;font:inherit;font-size:13px;font-weight:600;
  color:var(--muted);cursor:pointer;white-space:nowrap}
.side-tabs button.active{background:var(--bg);color:var(--text)}
.side-panels{flex:1;min-height:0;overflow:auto;padding:12px 14px;background:var(--bg)}
.side-panel{display:none}
.side-panel.active{display:block}
.side-head{display:flex;gap:8px;align-items:center;margin-bottom:8px;flex-wrap:wrap}
.side-panel .card{margin:8px 0}
.side-panel .prose{font-size:14px}
.side-panel .prose h1{font-size:20px}
.side-panel .prose h2{font-size:16px}
.sidetests{margin:8px 0;font-size:13px}
.sidetests td{vertical-align:top}
.sidetests details{margin-top:6px}
.sidetests summary{cursor:pointer;color:var(--link);font-size:12px}
.sidetests pre{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
  padding:8px;overflow:auto;font-family:var(--mono);font-size:12px;margin:6px 0;white-space:pre-wrap;word-break:break-word}
.side-run{border:1px solid var(--border);border-radius:var(--radius);padding:8px 10px;margin:8px 0;
  display:flex;gap:8px;align-items:baseline;flex-wrap:wrap;background:var(--surface);font-size:13px}
.side-run[hidden]{display:none}
.sidelinks{list-style:none;margin:8px 0;padding:0;display:flex;flex-direction:column;gap:8px}
.sidelinks a{font-weight:600}
.side-foot{flex:none;border-top:1px solid var(--border);padding:8px 14px;font-size:12px;color:var(--muted);margin:0}
/* TODO-region highlight for the editable starter zone (flat solid) */
.arena-solve{background:var(--me) !important}
.tabbar{display:flex;gap:2px;background:var(--surface);border-bottom:1px solid var(--border);
  overflow-x:auto;padding:8px 8px 0;min-height:44px;align-items:flex-end}
.tabbar .tab{border:1px solid var(--border);border-bottom:0;border-radius:6px 6px 0 0;background:var(--panel);
  padding:0 12px;min-height:32px;font-family:var(--mono);font-size:12px;cursor:pointer;
  display:inline-flex;gap:8px;align-items:center;white-space:nowrap;color:var(--muted)}
.tabbar .tab.active{background:var(--bg);color:var(--text);font-weight:600}
.toolbar{padding:8px 12px;border-bottom:1px solid var(--border);background:var(--surface);min-height:52px}
.savestate{display:flex;align-items:center;gap:8px;font-size:12px;color:var(--muted);margin-right:auto}
.dot{width:9px;height:9px;border-radius:50%;background:var(--muted);flex:none}
.dot.ok{background:var(--ok)}
.dot.busy{background:var(--warn)}
.dot.bad{background:var(--err)}
.monacohost{flex:1 1 auto;min-height:320px;overflow:hidden;display:none}
.monacohost.on{display:block}
.monacohost{position:relative}
[data-editor]{flex:1 1 auto;border:0;border-radius:0;resize:none;min-height:320px;line-height:1.55}
[data-editor].hidden{display:none}
.lintbox{border-top:1px solid var(--border);padding-top:8px;display:flex;flex-direction:column;gap:8px}
.linthead{font-size:12px;text-transform:uppercase;color:var(--muted);letter-spacing:.04em;
  display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.lintbox ul{list-style:none;margin:0;padding:0;max-height:160px;overflow:auto;display:flex;flex-direction:column;gap:4px}
.lintbox li{font-family:var(--mono);font-size:12px;padding:6px 8px;border-left:3px solid var(--border);
  cursor:pointer;background:var(--bg);border-radius:0 var(--radius) var(--radius) 0}
.lintbox li.err{border-color:var(--err)}
.lintbox li.warn{border-color:var(--warn)}
.lintbox li:hover{background:var(--surface)}

/* Editor mode chip: visible ONLY in plain-text fallback so a broken Monaco
   can never look identical to the working fallback. */
.editor-mode-chip{display:none;align-items:center;min-height:28px;border:1px dashed var(--warn);
  border-radius:20px;padding:2px 12px;font-size:12px;font-weight:600;
  background:var(--warn-bg);color:var(--warn);white-space:nowrap}
body[data-editor-mode="fallback"] .editor-mode-chip{display:inline-flex}
body[data-editor-mode="monaco"] .editor-mode-chip{display:none}
body[data-editor-mode="fallback"] [data-editor]{border:1px dashed var(--warn)}

/* Terminal console: always dark, flat. Hidden until the first run —
   a slim placeholder bar shows instead (see .conscollapsed). */
.consolewrap{border-top:1px solid var(--border);background:var(--surface);flex:none}
.conscollapsed{display:flex;align-items:center;gap:12px;padding:8px 12px;min-height:44px}
.consolefull{display:block}
.consolewrap[data-console-state="idle"] .consolefull{display:none}
.consolewrap[data-console-state="shown"] .conscollapsed{display:none}
.conscollapsed[hidden],.consolefull[hidden]{display:none}
.console-split{height:9px;margin:-2px 0;cursor:row-resize;position:relative;background:transparent;border:0;padding:0;display:block;width:100%}
.console-split::after{content:"";position:absolute;left:0;right:0;top:4px;height:1px;background:var(--border)}
.console-split:hover::after,.console-split:focus-visible::after{background:var(--link);height:2px}
.console-split:focus-visible{outline:2px solid var(--link);outline-offset:-2px}
.conshead{display:flex;align-items:center;gap:12px;padding:8px 12px;min-height:44px;flex-wrap:wrap}
.constitle{font-size:12px;text-transform:uppercase;color:var(--muted);letter-spacing:.04em;font-weight:700}
.pbar{flex:1;min-width:120px;height:8px;background:var(--panel);border:1px solid var(--border);border-radius:5px;overflow:hidden}
.pfill{height:100%;width:0%;background:var(--ok);transition:width .3s ease}
.pfill.running{background:var(--link)}
.terminal{background:var(--console-bg);color:var(--console-text);font-family:var(--mono);font-size:12.5px;
  height:var(--console-h);max-height:60vh;overflow:auto;padding:10px 12px}
.terminal ol{margin:0;padding:0;list-style:none}
.terminal .log{padding:2px 0;white-space:pre-wrap;word-break:break-word}
.terminal .prompt{color:var(--console-mut);margin-right:8px;user-select:none}
.terminal .ts{color:var(--console-mut);margin-right:8px}
.terminal .log.pass{color:var(--console-pass)}
.terminal .log.fail{color:var(--console-fail)}
.terminal .log.warn{color:var(--console-warn)}
.terminal .log.info{color:var(--console-text)}
.terminal .log.dim{color:var(--console-mut)}
.verdict{display:flex;gap:10px;align-items:center;flex-wrap:wrap;border-radius:var(--radius);
  padding:12px 14px;margin:10px 0;font-weight:700;font-size:15px;color:#fff;background:var(--muted)}
.verdict.accepted{background:var(--ok)}
.verdict.wrong,.verdict.error{background:var(--err)}
.verdict.tle,.verdict.warn{background:var(--warn)}
.verdict .sub{font-weight:400;font-size:12px;opacity:.9}
.testtable{width:100%;border-collapse:collapse;margin:8px 0;font-size:12px}
.testtable th,.testtable td{border:1px solid #2b2f36;padding:6px 8px;text-align:left}
.testtable thead th{background:#1d2026;color:var(--console-mut);font-weight:600}
.sdot{display:inline-block;width:10px;height:10px;border-radius:50%;margin-right:8px;vertical-align:baseline}
.sdot.pass{background:var(--console-pass)}
.sdot.fail{background:var(--console-fail)}
.sdot.warn{background:var(--console-warn)}
.sdot.skip{background:var(--console-mut)}
.testtable tr.failrow td{background:#231316}
.diff{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin:8px 0}
.diff pre{background:#1d2026;border:1px solid #2b2f36;border-radius:var(--radius);padding:8px;
  font-size:11.5px;overflow:auto;margin:0;color:var(--console-text)}
.diff pre mark{background:#5a1f1f;color:#ffd7d7;display:block}
.diff pre mark.add{background:#12361f;color:#b7f0c2}

/* Logged-out hero: flat solid panel, accent edge, theme-aware via vars */
.hero{border-left:4px solid var(--accent)}
.hero h1{margin-top:0}
.hero ol{margin:8px 0 8px 20px;padding:0;display:flex;flex-direction:column;gap:4px}
.hero .btn{text-decoration:none}
.hero .btn:hover{text-decoration:none}

/* Failed-test overview: one expanded card per failure (terminal-dark, flat) */
.failsec{display:flex;flex-direction:column;gap:8px;margin:10px 0}
.failcard{background:#1d2026;border:1px solid #2b2f36;border-radius:var(--radius);padding:8px 10px}
.failcard[open]{border-color:var(--console-fail)}
.failsum{display:flex;gap:8px;align-items:center;flex-wrap:wrap;cursor:pointer;
  font-size:12.5px;color:var(--console-text);list-style:none}
.failsum::-webkit-details-marker{display:none}
.failsum strong{font-weight:700}
.failcat{border:1px solid #2b2f36;border-radius:20px;padding:0 10px;font-size:11px;color:var(--console-mut)}
.failverdict{font-family:var(--mono);font-size:11.5px;color:var(--console-fail)}
.failtime{margin-left:auto;font-size:11.5px;color:var(--console-mut);font-variant-numeric:tabular-nums}
.failmsg{font-size:12px;color:var(--console-text);margin:8px 0 0;white-space:pre-wrap;word-break:break-word}
.failnote{font-size:12px;color:var(--console-mut);margin:8px 0 0;white-space:pre-wrap;word-break:break-word}
.ioblocks{display:grid;grid-template-columns:1fr 1fr 1fr;gap:8px;margin:8px 0}
.ioblock{min-width:0}
.iolabel{font-size:11px;text-transform:uppercase;letter-spacing:.04em;color:var(--console-mut);margin-bottom:4px}
.ioblock pre{background:#101216;border:1px solid #2b2f36;border-radius:var(--radius);padding:8px;
  font-family:var(--mono);font-size:11.5px;overflow:auto;margin:0;max-height:220px;
  color:var(--console-text);white-space:pre-wrap;word-break:break-word}

/* Global points board section */
.globalsec{margin:16px 0}
.globalsec h2{margin-bottom:4px}
.pager[hidden]{display:none}
button.chip{font:inherit;cursor:pointer}
button.chip:disabled{opacity:.45;cursor:default}

@media (max-width:900px){
  .ide{flex-direction:column;height:auto;min-height:0}
  .ide-side{width:100%;border-right:0;border-bottom:1px solid var(--border);max-height:340px}
  .ide-split{display:none}
  .monacohost,[data-editor]{min-height:300px}
  .toolbar-row,.boardform{flex-direction:column;align-items:stretch}
  .boardform input[type="search"]{min-width:0;width:100%}
  .hidesm{display:none}
  .diff{grid-template-columns:1fr}
  .ioblocks{grid-template-columns:1fr}
  .solve-cell{white-space:normal}
  .wrap{padding:0 12px 24px}
}
@media (prefers-reduced-motion:reduce){
  .pfill{transition:none}
  .solvedrop .chev{transition:none}
}