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[hidden]{display:none!important}
/* Games and progress */
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#e7e4ed;background:white;border-radius:15px;padding:22px;display:flex;align-items:center;gap:17px;text-align:left;color:var(--ink);transition:transform .2s,border-color .2s,box-shadow .2s}.game-tile:hover{transform:translateY(-3px);border-color:#b5a9e2;box-shadow:0 12px 22px #3e356719}.game-symbol{width:58px;height:58px;display:grid;place-items:center;background:#edeafb;border-radius:13px;color:#6654b4;font-size:28px;flex:none}.game-symbol.mint{background:#e9f4d7;color:#5f8547}.game-tile b{font:800 17px Manrope;display:block;margin-bottom:5px}.game-tile small{font-size:12px;line-height:1.45;color:var(--muted);display:block}.game-arrow{color:#a2a0ac;margin-left:auto;align-self:start}.game-stage{background:#282345;color:white;border-radius:17px;padding:clamp(22px,3vw,40px);margin:18px 0 26px}.stage-top{display:flex;justify-content:space-between;gap:18px}.stage-top .topic-pill{background:#47406f;color:#d7ceff}.stage-top h4{font:800 25px Manrope;letter-spacing:-.04em;margin:17px 0 5px}.stage-top p{font-size:12px;color:#c8c3df;line-height:1.5}.stage-stats{display:flex;flex-direction:column;align-items:end;gap:10px;font-size:11px;color:#d4cfe5;font-weight:700}.stage-stats span:first-child{font-size:10px;letter-spacing:.12em;color:#d8f478}.memory-board{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px;margin-top:22px}.memory-card{min-height:100px;border:1px solid #5e577a;border-radius:10px;background:#3b355d;color:#d8f478;padding:10px;position:relative;transition:transform .2s,background .2s;font-weight:700}.memory-card:hover:not(:disabled){transform:translateY(-2px);background:#4d4574}.memory-card .card-back{font-size:28px}.memory-card .card-front{display:none;font-size:12px;line-height:1.35;color:#282345}.memory-card.flipped{background:#f4f1ff;border-color:#d4c8fa}.memory-card.flipped .card-back{display:none}.memory-card.flipped .card-front{display:block}.memory-card.matched{background:#e7f5ce;border-color:#c7e68a;opacity:.8}.sequence-board{background:#f9f8fe;border-radius:13px;color:var(--ink);padding:25px;margin-top:20px}.sequence-count{font-size:10px;color:#7970bd;font-weight:800;letter-spacing:.14em}.sequence-board h5{font:800 20px Manrope;letter-spacing:-.02em;margin:10px 0 21px}.sequence-solved,.sequence-options{display:flex;flex-wrap:wrap;gap:8px;min-height:49px}.sequence-solved{border-bottom:1px solid #e6e2ee;padding-bottom:14px;margin-bottom:16px}.solved-step{border-radius:8px;background:#e3f2c7;padding:10px 12px;color:#4b713c;font-size:12px;font-weight:800}.sequence-option{border:1px solid #d9d4e9;background:white;border-radius:8px;padding:11px 14px;color:#554d7f;font-size:12px;font-weight:700}.sequence-option:hover:not(:disabled){border-color:#8b74c9}.sequence-option.chosen{display:none}.sequence-option.missed{background:#ffe6e5;border-color:#e2a7ad}.sequence-feedback{min-height:20px;font-size:12px;color:#747489;margin:16px 0}.game-finished{text-align:center;padding:16px 0 4px}.game-finished .result-emblem{background:#4e467b;color:#d8f478;width:62px;height:62px;font-size:32px;margin-bottom:14px}.game-finished h4{font:800 26px Manrope;margin-bottom:9px}.game-finished p{color:#d0cce0;font-size:13px;line-height:1.6}.game-finished .button{background:#d8f478;color:#292445}.analytics{margin-top:33px}.analytics-heading{display:flex;justify-content:space-between;align-items:end;gap:22px;margin-bottom:16px}.analytics-heading p{max-width:300px}.chart-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}.chart-card,.leaderboard{border:1px solid var(--stroke);border-radius:15px;background:white;padding:25px}.chart-card h4,.leaderboard h4{font:800 17px Manrope;margin:0 0 5px}.chart-card>p,.leaderboard p{font-size:11px;color:#9494a2;margin:0 0 20px}.topic-graph,.trend-graph{min-height:205px;display:flex;flex-direction:column;justify-content:center}.bar-row{display:grid;grid-template-columns:104px 1fr 34px;gap:10px;align-items:center;margin:10px 0;font-size:11px}.bar-name{font-weight:700;color:#73758b}.bar-track{height:13px;border-radius:8px;background:#f0eef6;overflow:hidden}.bar-fill{height:100%;border-radius:8px;background:linear-gradient(90deg,#8677d0,#c0b5ec);transition:width .3s}.bar-value{color:#6659a8;text-align:right}.trend-graph svg{width:100%;height:auto;max-height:185px}.chart-caption{font-size:10px;color:#9393a0;text-align:center}.empty-chart{color:#a1a1ad;text-align:center;font-size:12px;line-height:1.6}.leaderboard{margin-top:16px}.leaderboard p{margin-bottom:15px}.leader-row{display:grid;grid-template-columns:35px 1fr 130px 80px;align-items:center;gap:8px;padding:11px 3px;border-top:1px solid #f0eef2;font-size:12px}.leader-row .rank{color:#a4a0b5;font-weight:800}.leader-row strong{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.leader-row .game-kind{color:#9392a0;font-size:11px}.leader-row b{text-align:right;color:#6b59ad}
@media(max-width:800px){.game-head{align-items:stretch;flex-direction:column}.challenge-setup{min-width:0}.analytics-heading{align-items:start;flex-direction:column}.chart-grid{grid-template-columns:1fr}.memory-board{grid-template-columns:repeat(3,1fr)}}
@media(max-width:700px){.mode-switch button{padding:10px 8px;font-size:11px}.game-head{padding:24px}.game-chooser{grid-template-columns:1fr}.game-tile{padding:18px}.stage-top{flex-direction:column}.stage-stats{align-items:start;flex-direction:row}.memory-card{min-height:83px}.memory-card .card-front{font-size:10px}.leader-row{grid-template-columns:26px 1fr 65px}.leader-row .game-kind{display:none}}
/* Expanded study notes */
.note-search{padding:15px 4px 5px}.note-search label{display:block;color:#75788a;font-size:10px;font-weight:800;letter-spacing:.08em;margin-bottom:7px}.note-search input{width:100%;border:1px solid #dfdce8;border-radius:9px;background:#fbfafc;padding:11px 12px;color:var(--ink);font-size:12px;outline:none}.note-search input:focus{border-color:#8273cd;box-shadow:0 0 0 3px #8273cd22}.note-search input::placeholder{color:#aaa8b7}.note-search span{font-size:10px;color:#85849b;display:block;min-height:15px;margin-top:5px}.no-matches{font-size:12px;line-height:1.5;color:#9692a4;padding:10px}.full-notes{background:white;border:1px solid var(--stroke);border-radius:16px;padding:clamp(22px,3vw,38px);margin-top:17px}.full-notes-head{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-bottom:15px}.full-notes .practice-eyebrow{color:#7966ba}.full-notes h4{font:800 24px Manrope;letter-spacing:-.035em;margin:6px 0 3px}.full-notes-head p{font-size:12px;color:#898e9f;margin:0}.note-group{border-top:1px solid #eceaf0}.note-group:last-child{border-bottom:1px solid #eceaf0}.note-group summary{list-style:none;display:flex;align-items:center;justify-content:space-between;gap:15px;padding:17px 3px;color:#34405b;font:800 14px Manrope;cursor:pointer}.note-group summary::-webkit-details-marker{display:none}.note-group summary:before{content:'+';font:700 17px DM Sans;color:#8473c4;background:#f1eefb;border-radius:6px;display:grid;place-items:center;width:27px;height:27px;flex:none;margin-right:1px}.note-group[open] summary:before{content:'−'}.note-group summary>span:first-child{margin-right:auto}.note-count{font:700 10px DM Sans;color:#a0a0ad;white-space:nowrap}.note-group ul{margin:0 0 19px 37px;padding:0;max-width:820px}.note-group li{font-size:13px;color:#4d586b;line-height:1.65;padding:0 0 11px 4px}.note-group li::marker{color:#8b77c7}
@media(max-width:700px){.note-search{min-width:0;padding:9px 0 3px}.note-search input{max-width:100%}.full-notes{padding:20px}.full-notes-head{align-items:start;flex-direction:column}.full-notes .button{align-self:flex-start}.note-group ul{margin-left:20px}.note-group summary{font-size:13px}}
/* Interactive visual atlas */
.diagram-card{background:#fff;border:1px solid var(--stroke);border-radius:16px;padding:clamp(22px,3vw,38px);margin-top:17px}.diagram-head{display:flex;justify-content:space-between;align-items:center;gap:18px}.diagram-head .practice-eyebrow{color:#7966ba}.diagram-head h4{font:800 24px Manrope;letter-spacing:-.035em;margin:6px 0 4px}.diagram-head p{font-size:12px;color:#878c9e;line-height:1.5;margin:0}.diagram-nav{display:flex;gap:7px;overflow-x:auto;padding:18px 0 17px;scrollbar-width:thin}.diagram-nav-button{border:1px solid #e5e1ee;background:#fbfafc;border-radius:25px;padding:9px 13px;white-space:nowrap;font-size:11px;font-weight:800;color:#858196}.diagram-nav-button.active{background:#e9e5fa;color:#5140a3;border-color:#d3c8ee}.diagram-nav-button:hover{border-color:#aa9bd5}.diagram-layout{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(235px,.8fr);gap:17px;align-items:stretch}.diagram-canvas{background:#fcfbfe;border:1px solid #e8e5ef;border-radius:13px;padding:10px;position:relative;display:flex;align-items:center}.diagram-canvas svg{display:block;width:100%;height:auto;max-height:440px}.diagram-scale{position:absolute;bottom:9px;left:16px;color:#aaa4b5;font-size:9px;font-weight:800;letter-spacing:.11em}.diagram-side{border-radius:13px;background:#f7f5fb;padding:22px;display:flex;flex-direction:column}.diagram-count{font-size:10px;color:#8272bb;letter-spacing:.12em;font-weight:800}.diagram-side h5{font:800 19px/1.2 Manrope;letter-spacing:-.03em;margin:10px 0 6px}.diagram-side>p{font-size:11px;line-height:1.5;color:#7c7e91;margin:0 0 15px}.diagram-labels{display:grid;gap:6px}.diagram-label{border:1px solid #e5e2ed;border-radius:8px;background:#fff;text-align:left;display:flex;align-items:center;gap:10px;min-height:36px;padding:6px 10px;color:#a4a2af;font-size:11px;font-weight:700}.diagram-label:hover{border-color:#a797d4}.diagram-label.revealed{color:#403b65;background:#fefeff}.diagram-label-num{font-weight:800;color:#8b76c8;font-size:10px}.diagram-fact{border-left:3px solid #cfe879;background:#f6fae9;color:#5f654f;border-radius:0 8px 8px 0;margin-top:16px;padding:12px 13px;font-size:11px;line-height:1.5}.diagram-fact strong{display:block;color:#3f4a34;font-size:12px;margin-bottom:4px}.diagram-fact span{display:block}.svg-orient{font:800 11px DM Sans,Arial,sans-serif;fill:#8b8196;letter-spacing:.1em}.svg-panel-letter{font:800 16px Manrope,Arial,sans-serif;fill:#746b89}.diagram-marker{cursor:pointer}.diagram-marker circle{fill:#423580;stroke:white;stroke-width:3;filter:drop-shadow(0 2px 3px #211a4a44);transition:fill .18s,transform .18s}.diagram-marker text{font:800 13px DM Sans,Arial,sans-serif;fill:white;pointer-events:none}.diagram-marker:hover circle,.diagram-marker:focus circle{fill:#7562b6;stroke:#d8f478;stroke-width:4}.diagram-marker.revealed circle{fill:#658443}.diagram-marker:focus{outline:none}
@media(max-width:900px){.diagram-layout{grid-template-columns:1fr}.diagram-side{display:block}.diagram-labels{grid-template-columns:repeat(2,minmax(0,1fr))}.diagram-fact{min-height:55px}}@media(max-width:700px){.diagram-card{padding:20px}.diagram-head{align-items:start;flex-direction:column}.diagram-canvas{padding:4px}.diagram-side{padding:18px}.diagram-labels{grid-template-columns:1fr}.diagram-label{min-height:34px}.diagram-scale{font-size:8px}.diagram-nav-button{font-size:10px}}
#diagramSvg{width:100%;min-width:0}