@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700&family=Manrope:wght@400;500;600;700;800&display=swap');
:root{color-scheme:light;--cl-bg:#f6f7f1;--cl-panel:#fff;--cl-soft:#edf1e7;--cl-ink:#203e30;--cl-muted:#647567;--cl-line:#d9e2d4;--cl-accent:#285c3d;--cl-lime:#d7edb2}
:root[data-theme=dark]{color-scheme:dark;--cl-bg:#111c17;--cl-panel:#18271f;--cl-soft:#213429;--cl-ink:#e5ecde;--cl-muted:#a2b49e;--cl-line:#354c3b;--cl-accent:#b8d99b;--cl-lime:#31482a}
html{scroll-behavior:smooth}body{background:var(--cl-bg)!important;color:var(--cl-ink)!important}.cl-header,.cl-header *{box-sizing:border-box}.cl-header{height:88px!important;padding:0 4vw!important;display:flex!important;align-items:center;gap:30px;border-bottom:1px solid var(--cl-line)!important;background:var(--cl-bg);font:13px 'DM Sans',sans-serif;position:relative;z-index:10}.cl-brand{display:flex;align-items:center;gap:0;text-decoration:none;color:var(--cl-ink)!important;font:800 24px 'Manrope',sans-serif;letter-spacing:-1.2px;white-space:nowrap}.cl-brand>span:not(.cl-mark){font-weight:400}.cl-mark{width:39px;height:39px;border-radius:12px;background:var(--cl-accent);color:var(--cl-bg);display:grid;place-items:center;font-size:33px;margin-right:11px}.cl-brand sup{font:9px 'DM Sans',sans-serif;letter-spacing:1.1px;margin-left:24px;color:var(--cl-muted)}.cl-header nav{display:flex;height:auto;align-items:center;gap:24px;margin-left:auto}.cl-header nav a{padding:10px 0!important;color:var(--cl-muted)!important;text-decoration:none;white-space:nowrap;font:500 12px 'DM Sans',sans-serif}.cl-header nav a[aria-current]{color:var(--cl-accent)!important;border-bottom:2px solid var(--cl-accent)}.cl-theme{border:1px solid var(--cl-line)!important;border-radius:30px!important;background:var(--cl-panel)!important;color:var(--cl-ink)!important;padding:10px 15px!important;white-space:nowrap;font:500 12px 'DM Sans',sans-serif;cursor:pointer}.cl-legacy-header{display:none!important}.cl-status{position:static!important;display:table!important;margin:20px 4vw!important;color:var(--cl-muted)!important;font:11px 'DM Sans',sans-serif;border-color:var(--cl-line)!important}.cl-header a:focus-visible,.cl-theme:focus-visible{outline:3px solid var(--cl-accent);outline-offset:5px}
/* One palette for the existing experiment surfaces; the arena keeps its own lighting. */
body:not(.hub){--paper:var(--cl-bg);--bg:var(--cl-bg);--ink:var(--cl-ink);--text:var(--cl-ink);--muted:var(--cl-muted);--line:var(--cl-line);--card:var(--cl-panel);--green:var(--cl-accent);--mint:var(--cl-accent);--gold:var(--cl-accent)}
body:not(.hub) main,body:not(.hub) aside,.arena-panel,.arena-head,.playback,.arena-metrics,.brain-evidence,.training,.scoreboard{background:var(--cl-panel)!important;color:var(--cl-ink);border-color:var(--cl-line)!important}body:not(.hub) aside{background:var(--cl-bg)!important}.brain-flow,.condition,.course-list button.selected,.reward-card,.note,.count,.prediction{background:var(--cl-soft)!important;color:var(--cl-ink)!important}.brain-note,.subtle,.muted,.intro p,body:not(.hub) small{color:var(--cl-muted)}body:not(.hub) button,body:not(.hub) select,body:not(.hub) input:not([type=range]):not([type=checkbox]){background:var(--cl-soft);color:var(--cl-ink);border-color:var(--cl-line)}body:not(.hub) .primary,body:not(.hub) .play-button{background:var(--cl-accent)!important;color:var(--cl-bg)!important}.course-list button{color:var(--cl-ink)}body:not(.hub) a{color:var(--cl-accent)}.action-values .chosen{background:var(--cl-soft)}.brain-evidence td,.brain-evidence th{padding:12px 8px;text-align:left;border-bottom:1px solid var(--cl-line)}.brain-evidence{margin:25px 26px;border:1px solid var(--cl-line);border-radius:15px}.terrain-page main{height:calc(100vh - 88px)}.terrain-page .overlay small,.terrain-page .controls{color:#d9e8df}.terrain-page .overlay h2{color:#ecf3e9}.terrain-page .controls{background:#14272bed!important}.terrain-page .controls button,.terrain-page .controls select{background:#253d41;color:#e6ede9}.terrain-page .metric{border-color:var(--cl-line)}.terrain-page h3{color:var(--cl-muted)}
@media(max-width:1100px){.cl-brand sup{display:none}.cl-header{gap:20px}.cl-header nav{gap:18px}}
@media(max-width:760px){.cl-header{height:auto!important;min-height:105px;padding:15px 20px!important;flex-wrap:wrap;gap:8px}.cl-brand{font-size:22px}.cl-mark{width:32px;height:32px;font-size:28px}.cl-header nav{order:3;width:100%;gap:20px;overflow:auto}.cl-header nav a{font-size:11px}.cl-theme{margin-left:auto}.terrain-page main{height:auto}.brain-evidence{margin:20px 12px;padding:18px!important;overflow:auto}}

.cl-showcase{background:var(--cl-soft);padding:12px 4vw;font:11px 'DM Sans',sans-serif;color:var(--cl-muted);border-bottom:1px solid var(--cl-line)}