.appearance-switch { display:inline-flex; align-items:center; gap:7px; flex-shrink:0; color:var(--muted,#536177); font:inherit; font-size:12px; font-weight:600; line-height:1.3; }
.appearance-switch select { min-height:44px; max-width:100%; padding:8px 28px 8px 10px; border:1px solid var(--line,#d7e0eb); border-radius:8px; background:var(--card,#fff); color:var(--ink,#172e4d); font:inherit; font-size:13px; cursor:pointer; }
.appearance-switch select:hover { border-color:var(--blue,#2455c7); }
.appearance-switch select:focus-visible { outline:3px solid var(--blue,#2455c7); outline-offset:3px; }

/* The pixel-arcade world is opt-in; Current retains its existing CSS and layout. */
html[data-appearance="original"] body.trainer {
  --bg:#edf0ff; --card:#fff; --ink:#192244; --muted:#4c5274; --line:#bdc5eb;
  --blue:#3045c5; --green:#086540; --amber:#805000; --red:#ab163c; --violet:#6828ce;
  --arcade-blue:#4054ff; --cyan:#55e8ff; --lime:#c1f447; --pink:#ff72bd; --yellow:#ffe35a;
  --radius:4px;
  font:16px/1.6 system-ui,-apple-system,"Segoe UI",sans-serif;
  scrollbar-color:#7986d1 var(--bg);
}
html[data-appearance="original"] .trainer ::selection { background:var(--yellow); color:var(--ink); }
html[data-appearance="original"] .trainer * { scrollbar-color:#7986d1 var(--bg); }
html[data-appearance="original"] .trainer :focus-visible { outline:3px solid var(--violet); outline-offset:3px; }
html[data-appearance="original"] .trainer input,html[data-appearance="original"] .trainer textarea { caret-color:var(--violet); }
html[data-appearance="original"] .trainer .btn { min-height:44px; font:700 14px/1.4 system-ui,-apple-system,"Segoe UI",sans-serif; padding:9px 14px; border-radius:4px; border:2px solid #aeb9e3; background:#fff; box-shadow:none; }
html[data-appearance="original"] .trainer .btn:hover:not(:disabled) { background:#e7eaff; border-color:var(--blue); transform:none; box-shadow:none; }
html[data-appearance="original"] .trainer .btn.primary { background:var(--cyan); border-color:var(--ink); color:var(--ink); box-shadow:0 3px 0 var(--ink); }
html[data-appearance="original"] .trainer .btn.primary:hover:not(:disabled) { background:#92f2ff; }
html[data-appearance="original"] .trainer .btn.primary:active:not(:disabled) { transform:translateY(3px); box-shadow:none; }
html[data-appearance="original"] .trainer .btn.ghost { background:transparent; }
html[data-appearance="original"] .trainer #runBtn { min-width:110px; padding:9px 16px; font-size:14px; letter-spacing:normal; background:var(--lime); border-color:var(--ink); color:var(--ink); }
html[data-appearance="original"] .trainer #runBtn:hover:not(:disabled) { background:#d8ff7c; }
html[data-appearance="original"] .trainer .icon-btn { min-width:44px; min-height:44px; font:700 15px/1.4 system-ui,-apple-system,"Segoe UI",sans-serif; border:2px solid transparent; padding:8px; border-radius:4px; }
html[data-appearance="original"] .trainer .icon-btn:hover:not(:disabled) { background:#dee4ff; border-color:#aeb9e3; }
html[data-appearance="original"] .trainer .topbar { gap:14px; padding:10px 16px; background:#e5e9ff; border-bottom:3px solid var(--arcade-blue); }
html[data-appearance="original"] .trainer .logo { font-weight:800; font-size:17px; gap:8px; }
html[data-appearance="original"] .trainer .logo-mark { display:none; }
html[data-appearance="original"] .trainer .stats { gap:12px; flex-wrap:nowrap; color:var(--ink); margin-inline-start:auto; padding:0; order:initial; flex-basis:auto; }
html[data-appearance="original"] .trainer .level { flex:initial; min-width:0; gap:8px; }
html[data-appearance="original"] .trainer .lvl-num { width:44px; height:44px; border:2px solid var(--ink); border-radius:4px; color:var(--ink); font-size:18px; background:var(--yellow); box-shadow:0 3px 0 var(--ink); }
html[data-appearance="original"] .trainer .level-details { gap:1px; }
html[data-appearance="original"] .trainer .level-details b { font-size:13px; line-height:1.2; }
html[data-appearance="original"] .trainer #xpProgress { width:130px; height:12px; margin:4px 0 2px; border:2px solid var(--ink); border-radius:2px; background:#fff; box-shadow:none; }
html[data-appearance="original"] .trainer #xpProgress::-webkit-progress-bar { background:#fff; border-radius:0; }
html[data-appearance="original"] .trainer #xpProgress::-webkit-progress-value { background:var(--arcade-blue); border-radius:0; }
html[data-appearance="original"] .trainer #xpProgress::-moz-progress-bar { background:var(--arcade-blue); border-radius:0; }
html[data-appearance="original"] .trainer #xpText { font-size:12px; color:var(--muted); }
html[data-appearance="original"] .trainer #progressSummary { display:none; }
html[data-appearance="original"] .trainer .game-counters { gap:8px; margin:0; }
html[data-appearance="original"] .trainer .game-stat { display:grid; gap:2px 5px; min-width:64px; padding:5px 8px; border:2px solid var(--ink); border-radius:4px; box-shadow:0 3px 0 var(--ink); background:var(--yellow); color:var(--ink); }
html[data-appearance="original"] .trainer .game-stat svg { width:22px; height:22px; }
html[data-appearance="original"] .trainer .game-stat svg.pixel-icon { fill:initial; stroke:none; }
html[data-appearance="original"] .trainer .streak-stat { background:var(--pink); }
html[data-appearance="original"] .trainer .game-stat>span { display:block; font-size:12px; }
html[data-appearance="original"] .trainer #trophyBtn { color:var(--ink); background:var(--yellow); border-color:var(--ink); }
html[data-appearance="original"] .trainer .py-status { padding:4px 10px; border-radius:3px; white-space:nowrap; }
html[data-appearance="original"] .trainer .py-status.loading { background:#fff0a2; color:#674100; }
html[data-appearance="original"] .trainer .py-status.ready { background:#bdf2c6; color:#075331; }
html[data-appearance="original"] .trainer .py-status.error { background:#ffd4e4; color:#8a1639; }
html[data-appearance="original"] .trainer .cloud-status { padding:5px 16px; background:#f4f5ff; }
html[data-appearance="original"] .trainer .layout { display:grid; max-width:none; grid-template-columns:260px minmax(320px,1fr) minmax(440px,1.35fr); }
html[data-appearance="original"] .trainer .sidebar { position:static; inset:auto; width:auto; z-index:auto; visibility:visible; transform:none; overflow-y:auto; padding:12px 10px 40px; background:#f0efff; border-right:2px solid var(--line); box-shadow:none; }
html[data-appearance="original"] .trainer .course-map-head { margin-bottom:12px; }
html[data-appearance="original"] .trainer .course-map-head h2 { font-size:16px; }
html[data-appearance="original"] .trainer .sidebar>.small { display:none; }
html[data-appearance="original"] .trainer .lesson { min-width:0; overflow-y:auto; padding:22px 28px 40px; border-right:2px solid var(--line); border-bottom:0; }
html[data-appearance="original"] .trainer .workspace { padding:14px; gap:12px; overflow-y:auto; background:var(--bg); }
html[data-appearance="original"] .trainer .workspace-heading { display:none; }
html[data-appearance="original"] .trainer .chapter { padding:0; border:0; margin-bottom:16px; }
html[data-appearance="original"] .trainer .ch-head { min-height:44px; padding:5px 6px; gap:8px; font-size:14px; }
html[data-appearance="original"] .trainer .ch-head::after { font-size:18px; color:var(--violet); }
html[data-appearance="original"] .trainer .ch-num { width:28px; min-width:28px; height:28px; border:2px solid var(--ink); border-radius:3px; color:var(--ink); background:color-mix(in srgb,var(--c) 45%,white); font-weight:800; }
html[data-appearance="original"] .trainer .ch-progress { height:8px; margin:4px 6px 6px; width:calc(100% - 12px); border:1px solid #9da8db; border-radius:1px; background:#fff; }
html[data-appearance="original"] .trainer .ch-progress::-webkit-progress-bar { background:#fff; }
html[data-appearance="original"] .trainer .ch-progress::-webkit-progress-value { background:var(--arcade-blue); border-radius:0; }
html[data-appearance="original"] .trainer .ch-progress::-moz-progress-bar { background:var(--arcade-blue); border-radius:0; }
html[data-appearance="original"] .trainer .ls { min-height:44px; padding:8px; gap:8px; border:1px solid transparent; border-radius:3px; font-size:14px; }
html[data-appearance="original"] .trainer .ls:hover { background:#e0e5ff; }
html[data-appearance="original"] .trainer .ls.active { background:var(--cyan); border-color:var(--blue); font-weight:700; }
html[data-appearance="original"] .trainer .ls-dot { width:18px; height:18px; border:2px solid #929cc6; border-radius:2px; font-size:12px; }
html[data-appearance="original"] .trainer .ls.done .ls-dot { border-color:#086540; background:#86efac; color:#10452c; }
html[data-appearance="original"] .trainer .ls-stars { color:#805000; font-size:12px; letter-spacing:0; }
html[data-appearance="original"] .trainer .paid-label { font-size:12px; font-weight:700; color:#6424bb; }
html[data-appearance="original"] .trainer .crumb { font-size:13px; margin:0; color:var(--muted); }
html[data-appearance="original"] .trainer .crumb>span { padding:3px 8px; border:1px solid #c6aff1; border-radius:3px; background:#efe5ff; color:#542399; }
html[data-appearance="original"] .trainer .lesson h1 { font-size:28px; line-height:1.25; margin:12px 0 16px; letter-spacing:-.4px; }
html[data-appearance="original"] .trainer #lessonExplanation>summary { font-size:14px; min-height:44px; margin-bottom:8px; }
html[data-appearance="original"] .trainer .learn p,html[data-appearance="original"] .trainer .task p { margin:0 0 14px; }
html[data-appearance="original"] .trainer .learn ul,html[data-appearance="original"] .trainer .task ul { margin:0 0 14px; }
html[data-appearance="original"] .trainer .code-demo { padding:12px 14px; margin:0 0 16px; background:#202440; color:#f0f2ff; border:2px solid #434d87; border-radius:4px; font:14px/1.7 var(--mono); }
html[data-appearance="original"] .trainer .tip { background:#eee3ff; border:1px solid #bf9aea; padding:12px 14px; margin:0 0 16px; border-radius:4px; }
html[data-appearance="original"] .trainer .nav { margin-top:22px; padding-top:16px; }
html[data-appearance="original"] .trainer .exercise-tabs { flex-wrap:wrap; gap:8px; margin:12px 0; }
html[data-appearance="original"] .trainer .exercise-tabs .btn { flex:initial; padding:8px 10px; min-height:44px; }
html[data-appearance="original"] .trainer .exercise-tabs .selected { color:var(--ink); border-color:var(--ink); background:var(--pink); box-shadow:0 2px 0 var(--ink); }
html[data-appearance="original"] .trainer .lesson .task { padding:0; margin:18px 0 16px; border:2px solid #8797f0; border-radius:4px; background:#eef2ff; }
html[data-appearance="original"] .trainer .task>summary { padding:12px 16px 8px; min-height:44px; border-radius:2px; background:#dce4ff; color:#26358d; font-weight:800; }
html[data-appearance="original"] .trainer .task-content { padding:10px 16px 8px; }
html[data-appearance="original"] .trainer .practice-policy { font-size:12px; margin-bottom:14px; }
html[data-appearance="original"] .trainer .hint { background:#fff4b0; border-color:#d4b83c; border-radius:4px; padding:12px 14px; }
html[data-appearance="original"] .trainer .toolbar { position:static; margin:0; padding:0; gap:8px; background:none; }
html[data-appearance="original"] .trainer .editor-tools { display:none; }
html[data-appearance="original"] .trainer .editor { flex:1 1 46%; height:auto; min-height:160px; background:#202440; border:2px solid #434d87; border-radius:4px; box-shadow:none; }
html[data-appearance="original"] .trainer .editor.passed { animation:none; border-color:#168750; }
html[data-appearance="original"] .trainer .editor .cm-editor,html[data-appearance="original"] .trainer .editor .cm-gutters { background:var(--editor-bg,#202440); }
html[data-appearance="original"] .trainer .editor .cm-scroller { font-size:14px; line-height:23px; }
html[data-appearance="original"] .trainer .result { padding:12px 14px; border:2px solid transparent; border-radius:4px; }
html[data-appearance="original"] .trainer .result.idle { border-color:var(--line); }
html[data-appearance="original"] .trainer .result.error { background:#ffe3ec; border-color:#ee729a; animation:none; }
html[data-appearance="original"] .trainer .result.fail { background:#fff4b0; border-color:#d4b83c; animation:none; }
html[data-appearance="original"] .trainer .result.sample-ok { background:#d4ffb7; border-color:#167547; }
html[data-appearance="original"] .trainer .result.sample-ok .r-head { color:#075331; }
html[data-appearance="original"] .trainer .jt { border:2px solid var(--line); border-inline-start-width:6px; border-radius:3px; background:#fff; }
html[data-appearance="original"] .trainer .jt.ok { border-inline-start-color:#167547; }
html[data-appearance="original"] .trainer .jt.bad { border-inline-start-color:#c4325f; }
html[data-appearance="original"] .trainer .result.pass { background:#d4ffb7; border-color:#167547; box-shadow:0 3px 0 #167547; gap:8px 16px; }
html[data-appearance="original"] .trainer .result.pass .r-head { font-size:20px; letter-spacing:normal; color:#075331; }
html[data-appearance="original"] .trainer .stars-big { font-size:32px; letter-spacing:normal; }
html[data-appearance="original"] .trainer .stars-big .on { color:#8a5600; filter:none; }
html[data-appearance="original"] .trainer .stars-big .off { color:#64716b; }
html[data-appearance="original"] .trainer .xp-gain { padding:4px 10px; border:2px solid var(--ink); border-radius:3px; background:var(--yellow); color:var(--ink); box-shadow:0 2px 0 var(--ink); font-size:15px; font-weight:800; }
html[data-appearance="original"] .trainer .combo { background:var(--pink); color:var(--ink); border:1px solid #9e3167; border-radius:3px; }
html[data-appearance="original"] .trainer .combo svg.pixel-icon { stroke:none; fill:initial; }
html[data-appearance="original"] .trainer .visualizer { display:none; }
html[data-appearance="original"] .trainer .stepper { flex-wrap:nowrap; gap:2px; flex-shrink:0; padding:4px 8px; background:#fff; border:2px solid var(--line); border-radius:4px; }
html[data-appearance="original"] .trainer .stepper.disabled { opacity:.55; }
html[data-appearance="original"] .trainer .stepper .icon-btn { font-size:12px; border:0; }
html[data-appearance="original"] .trainer .stepper .play { background:var(--cyan); color:var(--ink); }
html[data-appearance="original"] .trainer #stepRange { min-width:60px; min-height:44px; flex:1; margin:0 8px; accent-color:var(--violet); }
html[data-appearance="original"] .trainer .step-label { margin:0; font-size:13px; }
html[data-appearance="original"] .trainer .viz { flex:1 1 40%; min-height:150px; display:grid; grid-template-columns:minmax(0,1.6fr) minmax(0,1fr); gap:10px; }
html[data-appearance="original"] .trainer .panel { display:flex; flex-direction:column; min-height:0; border:2px solid #a5b0e4; border-radius:4px; }
html[data-appearance="original"] .trainer .panel-title { padding:9px 12px; background:#dce4ff; color:#293576; }
html[data-appearance="original"] .trainer .frames { min-height:0; max-height:none; padding:10px; gap:10px; }
html[data-appearance="original"] .trainer .output { flex:1; min-height:0; max-height:none; padding:10px 12px; background:#fff; font:14px/1.6 var(--mono); }
html[data-appearance="original"] .trainer .frame { border:1px solid var(--line); border-radius:3px; padding:8px 10px; background:#f8f8ff; }
html[data-appearance="original"] .trainer .frame.top { border-color:#b894f0; background:#f3eaff; }
html[data-appearance="original"] .trainer .frame-name { margin-bottom:6px; font:700 12px var(--mono); }
html[data-appearance="original"] .trainer .frame.top .frame-name { color:var(--violet); }
html[data-appearance="original"] .trainer .var { gap:10px; padding:3px 4px; }
html[data-appearance="original"] .trainer .name { position:relative; padding:2px 8px 2px 6px; border:1px solid #9baee9; border-radius:3px; background:#dbe5ff; color:#263c88; }
html[data-appearance="original"] .trainer .name::after { content:''; position:absolute; right:-9px; top:50%; width:8px; border-top:2px dotted #7e8fc5; }
html[data-appearance="original"] .trainer .v { border:1px solid transparent; padding:2px 7px; border-radius:3px; }
html[data-appearance="original"] .trainer .v-num { background:#ffe1bd; border-color:#e0a369; color:#83300b; }
html[data-appearance="original"] .trainer .v-str { background:#c6f4d5; border-color:#85cba1; color:#135732; }
html[data-appearance="original"] .trainer .v-bool { background:#e8ceff; border-color:#bb8ce4; color:#5d238a; }
html[data-appearance="original"] .trainer .v-none,html[data-appearance="original"] .trainer .v-other { background:#e9edf5; border-color:#bec8d9; color:#40516a; }
html[data-appearance="original"] .trainer .v-fn { background:#fff1a3; border-color:#cfb736; color:#694700; }
html[data-appearance="original"] .trainer .box { gap:3px; border:2px solid #b0bce0; border-radius:3px; padding:4px 6px 6px; }
html[data-appearance="original"] .trainer .ref { font:700 12px var(--mono); color:var(--muted); }
html[data-appearance="original"] .trainer .cells { gap:3px; }
html[data-appearance="original"] .trainer .cell { gap:1px; }
html[data-appearance="original"] .trainer .idx { font:700 12px var(--mono); color:var(--blue); }
html[data-appearance="original"] .trainer .obj { border-color:#e4ac64; background:#fff5df; }
html[data-appearance="original"] .trainer .figures { flex-shrink:1; max-height:65%; overflow:auto; }
html[data-appearance="original"] .trainer .figures figure { margin:8px; }
html[data-appearance="original"] .trainer .unavailable>.stepper,html[data-appearance="original"] .trainer .unavailable>.step-label { display:none; }
html[data-appearance="original"] .trainer dialog { border:3px solid var(--ink); border-radius:6px; padding:22px 24px; box-shadow:0 18px 48px -18px #19224488; }
html[data-appearance="original"] .trainer .tro-stats { gap:8px; margin:16px 0; }
html[data-appearance="original"] .trainer .tro-stats div { background:#e5eaff; border:1px solid #b0bce6; border-radius:3px; padding:10px; text-align:center; }
html[data-appearance="original"] .trainer .badges { gap:10px; max-height:50vh; overflow:auto; }
html[data-appearance="original"] .trainer .badge { padding:12px; gap:3px; font-size:12px; filter:grayscale(1); opacity:1; background:#f0f2f8; border:2px solid #c1c8db; border-radius:4px; color:#525a73; }
html[data-appearance="original"] .trainer .badge.got { filter:none; opacity:1; background:#fff1a3; border-color:#ac7909; color:#443600; box-shadow:0 3px 0 #d0a52a; }
html[data-appearance="original"] .trainer .badge.got:nth-child(3n + 2) { background:#ffd4ed; border-color:#ae3977; color:#69244a; box-shadow:0 3px 0 #da85b5; }
html[data-appearance="original"] .trainer .badge.got:nth-child(3n) { background:#d4ffb7; border-color:#367b40; color:#235b2b; box-shadow:0 3px 0 #8cbb6d; }
html[data-appearance="original"] .trainer .badge b { font-size:13px; }
html[data-appearance="original"] .trainer .toast { background:var(--ink); border:2px solid var(--cyan); border-radius:4px; box-shadow:0 10px 24px -10px #19224488; }
html[data-appearance="original"] .trainer .toast.achievement { background:var(--yellow); color:var(--ink); border:2px solid var(--ink); }
html[data-appearance="original"] .trainer .toast-icon { border-radius:3px; background:#fff8d0; box-shadow:inset 0 0 0 2px #ac7909; }
html[data-appearance="original"] .trainer .level-up { border:2px solid var(--ink); border-radius:4px; color:var(--ink); background:var(--cyan); box-shadow:0 4px 0 var(--ink); }
html[data-appearance="original"] .trainer .level-up .lvl-num { border-width:2px; animation:none; }
html[data-appearance="original"] .trainer .level-up-text small { color:#412490; }
@media(min-width:1151px) {
  html[data-appearance="original"] .trainer #menuBtn,html[data-appearance="original"] .trainer #closeMap { display:none; }
}
@media(max-width:1350px) {
  html[data-appearance="original"] .trainer .topbar { gap:8px; flex-wrap:wrap; }
  html[data-appearance="original"] .trainer .stats { gap:8px; }
  html[data-appearance="original"] .trainer .topbar .btn { padding:6px 8px; }
}
@media(max-width:1150px) {
  html[data-appearance="original"] .trainer .layout { grid-template-columns:minmax(300px,1fr) minmax(420px,1.3fr); }
  html[data-appearance="original"] .trainer #menuBtn,html[data-appearance="original"] .trainer #closeMap { display:inline-flex; }
  html[data-appearance="original"] .trainer .sidebar { position:fixed; inset:0 auto 0 0; width:min(280px,94vw); z-index:45; visibility:hidden; transform:translateX(-100%); padding-top:18px; }
  html[data-appearance="original"] .trainer.nav-open .sidebar { visibility:visible; transform:none; box-shadow:10px 0 30px -15px rgba(0,0,0,.3); }
  html[data-appearance="original"] .trainer #xpProgress { width:90px; }
}
@media(min-width:801px) and (max-width:900px) {
  html[data-appearance="original"],html[data-appearance="original"] body.trainer { height:100%; }
}
@media(max-width:800px) {
  html[data-appearance="original"] body.trainer { height:auto; }
  html[data-appearance="original"] .trainer .layout { display:block; }
  html[data-appearance="original"] .trainer .topbar { flex-wrap:wrap; }
  html[data-appearance="original"] .trainer .logo { font-size:15px; }
  html[data-appearance="original"] .trainer .stats { margin-inline-start:auto; gap:5px; }
  html[data-appearance="original"] .trainer .level-details,html[data-appearance="original"] .trainer .topbar>.py-status { display:none; }
  html[data-appearance="original"] .trainer .lesson { padding:18px; border-right:0; border-bottom:1px solid var(--line); }
  html[data-appearance="original"] .trainer .workspace { overflow:visible; padding:12px 14px 32px; }
  html[data-appearance="original"] .trainer .editor { flex-basis:300px; height:300px; min-height:260px; }
  html[data-appearance="original"] .trainer .viz { grid-template-columns:1fr; min-height:320px; }
  html[data-appearance="original"] .trainer .frames { max-height:320px; }
  html[data-appearance="original"] .trainer .output { min-height:100px; max-height:280px; }
  html[data-appearance="original"] .trainer .toolbar { gap:4px; }
  html[data-appearance="original"] .trainer .toolbar .btn { padding:6px 8px; font-size:12px; }
  html[data-appearance="original"] .trainer .stepper { flex-wrap:wrap; }
  html[data-appearance="original"] .trainer #stepRange { flex-basis:100%; min-width:0; margin:0; }
  html[data-appearance="original"] .trainer .appearance-switch>span { display:none; }
  html[data-appearance="original"] .trainer .nav .btn { font-size:12px; padding:6px; }
}
@media(prefers-reduced-motion:reduce) {
  html[data-appearance="original"] .trainer .btn.primary:active:not(:disabled) { transform:none; }
}

/* Earned progress: the Original arcade layer, not a second learning system. */
.arcade-only { display:none; }
html[data-appearance="original"] .arcade-only { display:block; }
html[data-appearance="original"] .arcade-panel { flex-shrink:0; border:2px solid #a5b0e4; background:#fff; padding:12px; border-radius:4px; }
html[data-appearance="original"] .arcade-status { display:flex; flex-wrap:wrap; gap:12px; justify-content:space-between; }
html[data-appearance="original"] .clean-combo,html[data-appearance="original"] .campfire-status { display:flex; align-items:center; gap:9px; }
html[data-appearance="original"] .clean-combo>div,html[data-appearance="original"] .campfire-status>span { display:grid; }
html[data-appearance="original"] .clean-combo b { font-size:14px; }
html[data-appearance="original"] .clean-combo>div>span,html[data-appearance="original"] .campfire-status small { font-size:12px; color:var(--muted); }
html[data-appearance="original"] .arcade-avatar .pixel-icon,html[data-appearance="original"] .campfire-status .pixel-icon { width:36px; height:36px; }
html[data-appearance="original"] .combo-multiplier { display:inline-block; color:#192244; background:var(--yellow); border:1px solid var(--ink); padding:1px 5px; font-variant-numeric:tabular-nums; }
html[data-appearance="original"] .campfire-status { font-size:12px; }
html[data-appearance="original"] .campfire-status[data-fire="dim"] .pixel-icon { filter:saturate(.35); opacity:.65; }
html[data-appearance="original"] .campfire-status[data-fire="bright"] { background:#e0ffc2; padding:5px 8px; border-radius:3px; }
html[data-appearance="original"] .arcade-actions { display:flex; align-items:center; gap:8px; flex-wrap:wrap; margin-top:10px; }
html[data-appearance="original"] .arcade-actions .btn { display:inline-flex; gap:7px; align-items:center; font-size:12px; padding:7px 9px; }
html[data-appearance="original"] .arcade-actions [data-arcade-action="quest"] { background:var(--cyan); border-color:var(--ink); }
html[data-appearance="original"] .arcade-actions [data-arcade-action="chest"] { background:var(--yellow); border-color:var(--ink); }
html[data-appearance="original"] .arcade-toggle { display:inline-flex; gap:7px; align-items:center; min-height:44px; font-size:12px; cursor:pointer; }
html[data-appearance="original"] .arcade-toggle input { width:18px; height:18px; accent-color:var(--violet); }
html[data-appearance="original"] .arcade-message { margin:8px 0 0; font-size:13px; font-weight:600; color:#412490; }
html[data-appearance="original"] .arcade-message:empty { display:none; }
html[data-appearance="original"] .arcade-collection { margin-top:8px; }
html[data-appearance="original"] .arcade-collection summary { min-height:44px; padding-block:10px; cursor:pointer; font-size:12px; color:var(--blue); font-weight:700; }
html[data-appearance="original"] .arcade-collection p { font-size:12px; color:var(--muted); margin:8px 0 12px; }
html[data-appearance="original"] .cosmetic-controls { display:flex; gap:12px; flex-wrap:wrap; }
html[data-appearance="original"] .cosmetic-controls label { display:grid; gap:4px; flex:1; font-size:12px; min-width:140px; }
html[data-appearance="original"] .cosmetic-controls select { font:inherit; min-height:44px; border:2px solid var(--line); border-radius:3px; padding:7px; background:#fff; color:var(--ink); max-width:100%; }
html[data-appearance="original"] .cosmetic-shelf { display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:8px; margin-block:14px; }
html[data-appearance="original"] .cosmetic { display:flex; align-items:center; gap:7px; font-size:12px; padding:8px; background:#edf0ff; border:1px dashed #8c99cc; }
html[data-appearance="original"] .cosmetic .pixel-icon { filter:grayscale(1); }
html[data-appearance="original"] .cosmetic.owned { background:#fff2a5; border:1px solid #805000; }
html[data-appearance="original"] .cosmetic.owned .pixel-icon { filter:none; }
html[data-appearance="original"] .cosmetic small { display:block; font-size:11px; color:var(--muted); }
html[data-appearance="original"] .trainer .editor.high-combo { border-color:#8b2bd6; box-shadow:0 0 0 3px #dcb6ff; }
html[data-appearance="original"] .map-switch { display:flex; gap:5px; margin:8px 0 14px; }
html[data-appearance="original"] .map-switch .btn { flex:1; padding:6px 10px; font-size:12px; }
html[data-appearance="original"] .map-switch [aria-pressed="true"] { background:var(--yellow); border-color:var(--ink); }
html[data-appearance="original"] .pixel-map .ls { display:grid; position:relative; min-height:72px; margin:0 0 0 6px; padding:10px 4px; border:0; border-radius:0; grid-template-columns:36px minmax(0,1fr); gap:2px 10px; background:transparent; }
html[data-appearance="original"] .pixel-map .ls::after { content:""; position:absolute; width:4px; height:36px; top:53px; left:20px; background:#aab4dc; z-index:0; }
html[data-appearance="original"] .pixel-map .ls:last-child::after { display:none; }
html[data-appearance="original"] .pixel-map .ls.done::after { background:#70ba3b; }
html[data-appearance="original"] .pixel-map .ls .ls-dot { position:relative; z-index:1; grid-row:1 / 3; width:36px; height:36px; display:grid; place-items:center; border:2px solid #7c87b5; background:#e0e5f7; color:var(--ink); border-radius:4px; box-shadow:0 2px 0 #7c87b5; font-size:20px; }
html[data-appearance="original"] .pixel-map .ls.done .ls-dot { background:var(--lime); border-color:#326633; box-shadow:0 2px 0 #326633; }
html[data-appearance="original"] .pixel-map .ls.active .ls-dot { background:var(--cyan); border-color:var(--ink); box-shadow:0 2px 0 var(--ink); }
html[data-appearance="original"] .pixel-map .ls.active .ls-title { font-weight:800; color:#203fa7; }
html[data-appearance="original"] .pixel-map .ls .ls-title { grid-column:2; align-self:end; }
html[data-appearance="original"] .pixel-map .ls .ls-stars { grid-column:2; margin:0; justify-self:start; align-self:start; }
html[data-appearance="original"] .pixel-map .ls:hover { background:#dfe8ff; }
#dailyQuest { width:min(600px,calc(100% - 28px)); max-height:calc(100dvh - 28px); overflow:auto; padding:22px; color:var(--ink); background:var(--card); }
.quest-heading { display:flex; align-items:center; justify-content:space-between; gap:12px; }
.quest-heading h2 { margin:0; font-size:22px; }
.quest-editor { height:130px; min-width:0; overflow:hidden; border:2px solid #8797bf; border-radius:4px; margin:16px 0; }
.quest-actions { display:flex; gap:8px; flex-wrap:wrap; }
#questResult { font-size:14px; min-height:48px; }
@media(max-width:600px) {
  html[data-appearance="original"] .cosmetic-shelf { grid-template-columns:repeat(2,minmax(0,1fr)); }
  html[data-appearance="original"] .arcade-status { display:grid; }
  #dailyQuest { padding:16px; }
}

/* Mock tests, Arcade look */
html[data-appearance="original"] .trainer .mock-nav a { color:var(--ink); border-radius:3px; }
html[data-appearance="original"] .trainer .mock-nav a:hover { background:#dee4ff; }
html[data-appearance="original"] .trainer .chip { border:2px solid var(--ink); border-radius:3px; background:var(--yellow); color:var(--ink); }
html[data-appearance="original"] .trainer .mock-item,html[data-appearance="original"] .trainer .mock-ref,html[data-appearance="original"] .trainer .mock-review details { border:2px solid var(--line); border-radius:3px; }
html[data-appearance="original"] .trainer .mock-tab { border:2px solid var(--line); border-radius:3px; background:#fff; }
html[data-appearance="original"] .trainer .mock-tab:hover { border-color:var(--blue); background:#e7eaff; }
html[data-appearance="original"] .trainer .mock-tab.active { border-color:var(--ink); background:var(--cyan); box-shadow:0 3px 0 var(--ink); }
html[data-appearance="original"] .trainer .mock-tab.active .mock-tab-name { color:var(--ink); }
html[data-appearance="original"] .trainer .mock-tab.solved .chip { background:#bdf2c6; color:#075331; }
html[data-appearance="original"] .trainer .mock-tab.part .chip { background:#fff0a2; color:#674100; }
html[data-appearance="original"] .trainer .mock-timer { padding:6px 12px; border:2px solid var(--ink); border-radius:3px; background:var(--yellow); box-shadow:0 3px 0 var(--ink); }
html[data-appearance="original"] .trainer .mock-timer .low { color:var(--red); }
html[data-appearance="original"] .trainer .mock-table th,html[data-appearance="original"] .trainer .mock-table td { border-bottom:2px solid var(--line); }
html[data-appearance="original"] .trainer .mock-headline { display:inline-block; padding:4px 12px; border:2px solid var(--ink); border-radius:3px; background:var(--lime); box-shadow:0 3px 0 var(--ink); }