/* Cognitive studio: readable surfaces, contained scrolling, fixed answer controls. */
.gc-library,.gc-shell{--gc-paper:#f4f3ef;--gc-white:#fffefa;--gc-pine:#20372e;--gc-ink:#1e2925;--gc-lime:#d6e9a4;--gc-line:#dce1d4;--gc-muted:#707b66;color:var(--gc-ink);width:100%;max-width:1240px;height:100%;min-height:0;min-width:0;flex:1;display:flex;flex-direction:column;margin:0 auto;overflow:hidden;font-family:inherit;font-size:14px;line-height:1.6}
.gc-library *,.gc-shell *{box-sizing:border-box}.gc-library [hidden],.gc-shell [hidden]{display:none!important}.gc-library button,.gc-shell button,.gc-library input{font-family:inherit}.gc-library button,.gc-shell button{cursor:pointer}.gc-library button:disabled,.gc-shell button:disabled{cursor:default}
.gc-eyebrow{font-size:12px!important;line-height:1.5;letter-spacing:.08em;font-weight:500;text-transform:uppercase;color:var(--gc-muted);margin:0 0 6px}
.gc-library h1,.gc-shell h1{font-family:inherit;font-weight:500;letter-spacing:-.045em;line-height:1.2;margin:0;font-size:34px}.gc-library h2,.gc-shell h2{font-family:inherit;font-weight:500;letter-spacing:-.025em}.gc-library button:focus-visible,.gc-shell button:focus-visible,.gc-shell summary:focus-visible,.gc-shell a:focus-visible{outline:3px solid #8eaa68;outline-offset:3px}.gc-stage:focus{outline:none}
.gc-library-heading{display:flex;justify-content:space-between;align-items:flex-end;gap:24px;padding-bottom:20px;flex-shrink:0}.gc-library-heading>div>p:last-child{font-size:14px;line-height:1.65;color:var(--gc-muted);margin:9px 0 0}.gc-library-count{display:flex;align-items:baseline;gap:8px;color:#7a866f}.gc-library-count b{font:38px/1 Georgia,serif;font-weight:400;color:#6c8056}.gc-library-count span{font-size:12px}
.gc-library-toolbar{display:flex;justify-content:space-between;align-items:center;gap:16px;padding-bottom:18px;flex-shrink:0}.gc-filters{display:flex;gap:5px;min-width:0;overflow-x:auto;scrollbar-width:thin}.gc-filters button{background:transparent;border:1px solid transparent;min-height:44px;padding:9px 14px;font-size:12px;line-height:1.4;border-radius:7px;color:#657257;white-space:nowrap;flex-shrink:0}.gc-filters button:hover{background:#e8eddf}.gc-filters button.selected{background:var(--gc-pine);color:#f7faef}
.gc-search{display:flex;align-items:center;gap:9px;border:1px solid #d6decb;background:var(--gc-white);padding:0 13px;border-radius:7px;height:44px;width:290px;max-width:36%;min-width:180px;flex-shrink:0}.gc-search>span{font-size:25px;color:#7c8e6b;line-height:1}.gc-search input{min-width:0;width:100%;height:100%;background:none;border:0;outline:0;font-size:12px;color:#3d5034}.gc-search input::placeholder{color:#7f8b72}.gc-search:focus-within{outline:2px solid #a3bc81;outline-offset:2px}
.gc-library-scroll{overflow:auto;overscroll-behavior:contain;min-height:0;flex:1;padding:2px 5px 5px 1px;scrollbar-gutter:stable;scrollbar-width:thin}.gc-cards{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;align-content:start}.gc-card{appearance:none;text-align:left;border:1px solid var(--gc-line);border-radius:12px;background:var(--gc-white);color:var(--gc-ink);padding:19px 20px 0;display:flex;flex-direction:column;min-width:0;min-height:296px;transition:background .15s,border-color .15s}.gc-card:hover{background:#f4f8eb;border-color:#a7be8a}.gc-card-top{display:flex;justify-content:space-between;align-items:center;gap:8px;font-size:12px}.gc-index{font:12px ui-monospace,Consolas,monospace;color:#7d8e6b}.gc-card-duration{font-size:12px;color:#7c886e}.gc-card-art{height:70px;display:flex;align-items:center;justify-content:center;margin:14px 0 18px;color:#567a3c;pointer-events:none}.gc-card-copy{flex:1;min-width:0}.gc-card-category{font-size:12px;line-height:1.4;color:#71845d}.gc-card h2{font-size:21px;line-height:1.3;margin:7px 0 10px;overflow-wrap:anywhere}.gc-card-copy>p{font-size:14px;line-height:1.7;color:#68775b;margin:0}.gc-card-bottom{display:flex;justify-content:space-between;align-items:center;gap:8px;border-top:1px solid #e2e8d9;margin-top:18px;padding:12px 0}.gc-card-bottom>span{font-size:12px;letter-spacing:.04em;color:#788a65}.gc-card-bottom>i{font-size:22px;font-style:normal;color:#456b2e;line-height:1}.gc-library-footer{display:flex;align-items:flex-start;gap:9px;font-size:12px;line-height:1.5;color:#718060;padding-top:14px;flex-shrink:0}.gc-library-footer p{margin:0;flex:1}.gc-library-footer>span:last-child{font-size:12px}.gc-status-dot{height:6px;width:6px;background:#8aa962;border-radius:50%;flex-shrink:0;margin-top:6px}.gc-empty{grid-column:1/-1;text-align:center;font-size:14px;line-height:1.8;color:#748363;padding:40px 20px}
/* Task diagrams are drawn from the exercises themselves. */
.gc-art-word{display:flex;gap:14px;align-items:center;transform:rotate(-6deg);font-size:26px}.gc-art-word b{font-weight:500}.gc-art-word b:last-child{transform:translateY(10px)}.gc-art-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:6px;width:64px;height:64px;transform:rotate(-7deg)}.gc-art-grid i{background:#e5ecdb;border:1px solid #ccdab9;border-radius:3px}.gc-art-grid .lit{background:#98b878;border-color:#86a967}.gc-art-inhibit{display:flex;align-items:center;gap:28px}.gc-art-inhibit i{height:40px;width:40px;border:6px solid #73984f;border-radius:50%}.gc-art-inhibit b{height:30px;width:30px;border:4px solid #a5ad95;transform:rotate(45deg)}.gc-art-back{display:flex;gap:9px;position:relative;padding-bottom:18px}.gc-art-back span{height:36px;width:32px;display:grid;place-items:center;font-size:21px;border:1px solid #cbdcb7;border-radius:4px;color:#7b9364}.gc-art-back span:first-child,.gc-art-back span:nth-child(3){background:#e2edce;color:#567a38}.gc-art-back i{position:absolute;bottom:-3px;left:44px;font-size:13px;font-style:normal;color:#7f9b60}.gc-art-rotation{display:flex;gap:8px;align-items:center}.gc-art-rotation svg{height:85px;width:85px;fill:#86a564;stroke:#f7faef;stroke-width:.7}.gc-art-rotation svg:last-child{fill:#a7bd8d}.gc-art-switch{display:flex;align-items:center;gap:21px;font-size:35px}.gc-art-switch span,.gc-art-switch b{font-weight:400}.gc-art-switch b{color:#8fa96f}.gc-art-switch i{font-size:21px;color:#9cae85;font-style:normal}.gc-art-flanker{display:flex;align-items:center;gap:10px;font-size:35px}.gc-art-flanker span{color:#a7b792}.gc-art-flanker b{font-weight:500;color:#5a7d3d}.gc-art-search{display:grid;grid-template-columns:repeat(3,15px);gap:9px}.gc-art-search>*{width:14px;height:14px;border:2px solid #a8b695}.gc-art-search i{border-radius:50%}.gc-art-search b{transform:rotate(45deg);border-color:#89a76b}.gc-art-search strong{border-radius:50%;border-color:#5c843b;background:#e8f0d9}
/* Intro and source notes have their own scroll area; the start action remains visible. */
.gc-top{display:flex;justify-content:space-between;align-items:center;gap:16px;min-height:44px;margin-bottom:12px;flex-shrink:0}.gc-back{min-height:44px;padding:8px 0;border:0;background:none;color:#61764d;font-size:12px;line-height:1.5;text-align:left}.gc-back:hover{color:#284c1f}.gc-tag{font-size:12px;line-height:1.4;color:#667d51;padding:6px 10px;border:1px solid #d6e2c7;border-radius:5px;max-width:45%;text-align:right}.gc-intro{flex:1;min-height:0;display:grid;grid-template-columns:.8fr 1.3fr;border:1px solid var(--gc-line);border-radius:12px;overflow:hidden;background:var(--gc-white)}.gc-intro-art{position:relative;display:flex;align-items:center;justify-content:center;background:#e7eddd;overflow:hidden}.gc-intro-art:before,.gc-intro-art:after{content:'';position:absolute;inset:auto;width:240px;height:240px;border:1px solid #cddbbb;border-radius:50%}.gc-intro-art:after{width:300px;height:300px;border-color:#d6e1c7}.gc-intro-art>div{position:relative;z-index:1;transform:scale(2)}.gc-intro-number{position:absolute;top:22px;left:22px;font:12px ui-monospace,monospace;color:#758c5e}.gc-art-caption{position:absolute;bottom:24px;left:20px;right:20px;text-align:center;font-size:12px;letter-spacing:.06em;color:#768b62}.gc-intro-content{padding:30px;display:flex;flex-direction:column;min-height:0;overflow:hidden}.gc-intro-scroll{flex:1;min-height:0;overflow:auto;overscroll-behavior:contain;scrollbar-width:thin;padding-right:5px}.gc-intro h1{font-size:32px;margin-top:10px}.gc-description{font-size:14px;line-height:1.8;color:#647851;margin:15px 0 22px}.gc-instructions{padding:20px;border:1px solid #dbe6cd;border-radius:8px;background:#f1f6e7}.gc-instructions h2{font-size:14px;line-height:1.5;font-weight:600;color:#55783a;margin:0 0 10px}.gc-instructions p{font-size:14px;line-height:1.85;color:#5f764d;margin:0}.gc-method{font-size:12px;line-height:1.85;color:#708560;margin-top:18px}.gc-method summary{cursor:pointer;padding:5px 0;min-height:34px}.gc-method p{margin:10px 0}.gc-method a{color:#4b712e;text-decoration:underline;text-underline-offset:4px}.gc-intro-actions{display:flex;align-items:center;gap:18px;padding-top:20px;flex-shrink:0}.gc-intro-actions>span{font-size:12px;line-height:1.5;color:#768b64}.gc-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:11px 20px;border:1px solid transparent;border-radius:7px;font-size:14px;font-weight:500;line-height:1.4;text-align:center;white-space:normal}.gc-btn-primary{background:var(--gc-pine);color:#f4f9e9}.gc-btn-primary:hover{background:#36533a}.gc-btn-secondary{border-color:#cdddbc;background:#fbfdf7;color:#577341}.gc-btn-secondary:hover{background:#eaf2dc}.gc-disclaimer{font-size:12px!important;line-height:1.6;color:#738762;margin:12px 0 0;flex-shrink:0;max-height:40px;overflow:auto;scrollbar-width:thin}
/* One stable game frame. Height, not smaller text, determines the task arrangement. */
.gc-session{position:relative;display:grid;grid-template-columns:minmax(0,1fr);grid-template-rows:auto 3px auto minmax(0,1fr) auto 28px;flex:1;min-height:0;min-width:0;overflow:hidden;background:var(--gc-white);border:1px solid var(--gc-line);border-radius:12px;padding:20px 24px 12px}.gc-session-heading{display:flex;justify-content:space-between;align-items:center;gap:20px;padding-bottom:16px;min-width:0}.gc-session-heading>div:first-child{min-width:0}.gc-session-heading h1{font-size:26px;line-height:1.25;overflow-wrap:anywhere}.gc-session-heading .gc-eyebrow{margin:0 0 5px}.gc-session-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}.gc-help-trigger,.gc-exit{min-height:44px;display:inline-flex;align-items:center;justify-content:center;gap:8px;font-size:12px;line-height:1.4;border:1px solid #dae5ce;border-radius:7px;padding:9px 13px;background:#f7faef;color:#657f4e}.gc-exit{background:transparent;border-color:transparent;color:#7b866f}.gc-help-trigger:hover,.gc-exit:hover{background:#edf4e0;color:#456b2c}.gc-progress{height:3px;background:#e4edda;border-radius:3px;overflow:hidden}.gc-progress>span{display:block;height:100%;background:#95b964;transition:width .18s}.gc-session-meta{display:flex;justify-content:space-between;gap:15px;align-items:flex-start;padding-top:10px;padding-bottom:4px;font-size:12px;line-height:1.5;color:#7b8c68}.gc-session-meta>span:last-child{text-align:right;max-width:65%}.gc-stage{position:relative;container-type:size;min-height:0;min-width:0;display:flex;align-items:center;justify-content:center;overflow:hidden;padding:8px 0;isolation:isolate}.gc-fixation-arena,.gc-stroop-arena,.gc-nogo-arena{width:100%;height:100%;display:flex;align-items:center;justify-content:center;min-height:0}.gc-fixation{font-size:34px;font-weight:300;color:#91a47a}.gc-stroop-word{font-size:clamp(42px,25cqh,76px);font-weight:500;line-height:1.1;letter-spacing:.015em}.gc-response-dock{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;padding:16px 0 5px;border-top:1px solid #e0ead3;min-width:0}.gc-response-options{display:flex;justify-content:center;gap:12px;width:100%;max-width:660px;min-width:0}.gc-choice{display:flex;align-items:center;justify-content:space-between;gap:14px;flex:1;min-width:0;max-width:280px;min-height:48px;padding:12px 16px;background:#f0f6e5;border:1px solid #d0e0bb;border-radius:8px;color:#496c30;font-size:14px;line-height:1.4;text-align:left}.gc-choice:hover:not(:disabled){background:#e0edca;border-color:#adc68c}.gc-choice:active:not(:disabled){background:#d6e9a4}.gc-choice:disabled{opacity:.5}.gc-choice kbd{display:grid;place-items:center;min-width:25px;height:25px;border:1px solid #c7d9af;background:#fbfef5;border-radius:4px;color:#708c51;font:12px ui-monospace,monospace;flex-shrink:0}.gc-color-choices .gc-choice{max-width:170px;gap:10px}.gc-color-choice>i{height:11px;width:11px;border-radius:50%;flex-shrink:0}.gc-color-choice>span{flex:1}.gc-dock-hint{font-size:12px;color:#7c9068;line-height:1.5;text-align:center}.gc-feedback{height:28px;line-height:28px;text-align:center;font-size:12px;color:#748d5b;min-width:0}.gc-feedback.gc-correct{color:#527d33}.gc-feedback.gc-incorrect{color:#a0713e}
.gc-go-ring{width:clamp(60px,42cqh,110px);height:clamp(60px,42cqh,110px);border:10px solid #789d54;border-radius:50%;box-shadow:0 0 0 13px #eef5e1;background:#fbfdf7}.gc-no-diamond{width:clamp(50px,34cqh,88px);height:clamp(50px,34cqh,88px);border:9px solid #aa987b;border-radius:4px;transform:rotate(45deg);box-shadow:0 0 0 10px #f3f0e6;background:#fcfaf4}
.gc-corsi-board{position:relative;width:min(380px,calc(100cqw - 46px));height:min(300px,calc(100cqh - 46px));min-height:0;min-width:0;margin:0}.gc-corsi-block{position:absolute;display:grid;place-items:center;width:44px;height:44px;border:1px solid #cadbb5;background:#e3edD4;border-radius:7px;color:#728e55;font-size:12px;transition:background .12s,box-shadow .12s}.gc-corsi-block>span{pointer-events:none;font-family:ui-monospace,monospace}.gc-corsi-block:disabled{opacity:1}.gc-corsi-block.gc-lit{background:#7fa651;border-color:#739b45;box-shadow:0 0 0 4px #dfedc7;color:#f8fdf0}.gc-corsi-block.gc-selected{background:#b6d28d;color:#456b28}.gc-corsi-block:hover:not(:disabled){box-shadow:0 0 0 3px #e9f2da;border-color:#94b970}.gc-sequence-dots{display:flex;justify-content:center;align-items:center;gap:12px;min-height:28px;flex-wrap:wrap}.gc-sequence-dots i{height:9px;width:9px;border:1px solid #acc58a;border-radius:50%}.gc-sequence-dots i.filled{background:#91b560;border-color:#91b560}
.gc-nback-arena,.gc-switch-arena{height:100%;width:100%;display:flex;align-items:center;justify-content:center;flex-direction:column;gap:14px;min-height:0}.gc-stimulus-cue{font-size:14px;line-height:1.4;color:#6c8852;display:flex;align-items:center;gap:9px;text-align:center}.gc-nback-letter,.gc-switch-digit{font-size:clamp(50px,37cqh,104px);font-weight:400;line-height:1.05;letter-spacing:-.04em;color:#496d2f}.gc-nback-track{display:flex;align-items:center;gap:10px;color:#8ba96c;font-size:12px}.gc-nback-track i{height:8px;width:8px;border:1px solid #bfd4a0;border-radius:50%}.gc-nback-track b{width:22px;height:22px;display:grid;place-items:center;border-radius:50%;background:#e3efcf;font-weight:500}.gc-switch-rule{font-size:14px;line-height:1.4;padding:9px 17px;border:1px solid #c7dcb0;border-radius:6px;background:#edf5df;color:#648845;text-align:center}.gc-rule-magnitude{border-color:#d7d4bb;background:#f4f1e4;color:#8b8056}
.gc-rotation-arena{display:flex;align-items:center;justify-content:center;gap:16px;width:min(100%,650px);height:100%;min-height:0}.gc-rotation-arena figure{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;flex:1;min-width:0;min-height:0;height:100%;margin:0}.gc-rotation-arena figcaption{font-size:12px;line-height:1.4;color:#7e9268;flex-shrink:0}.gc-rotation-shape{display:block;flex:1;width:100%;max-height:270px;min-height:0;fill:#749a4e;stroke:#f8fced;stroke-width:1.1}.gc-rotation-divider{color:#c8d8b3;font-size:36px;font-weight:300;line-height:1}.gc-flanker-arena{display:flex;justify-content:center;align-items:center;gap:clamp(8px,2.3cqw,20px);font-size:clamp(32px,10cqw,68px);font-weight:400;line-height:1.1;color:#5e813e}.gc-flanker-arena b{position:relative;font-weight:400}.gc-flanker-arena b:after{content:'';position:absolute;left:35%;right:35%;bottom:-15px;height:2px;background:#b1c98e}
.gc-search-arena{display:flex;align-items:center;justify-content:center;flex-direction:column;gap:12px;max-width:100%;height:100%;min-height:0}.gc-search-field{display:grid;grid-template-columns:repeat(6,1fr);gap:clamp(5px,4cqh,13px) clamp(11px,3cqw,30px);justify-items:center;align-items:center}.gc-search-size-8,.gc-search-size-16{grid-template-columns:repeat(4,1fr)}.gc-search-cell{width:clamp(24px,14cqh,40px);height:clamp(24px,14cqh,40px);display:grid;place-items:center;transform:translate(var(--shift-x),var(--shift-y))}.gc-symbol{display:block;width:clamp(18px,12cqh,29px);height:clamp(18px,12cqh,29px);border:4px solid #719549;flex-shrink:0}.gc-symbol.ring-green,.gc-symbol.ring-gray{border-radius:50%}.gc-symbol.ring-gray{border-color:#b4bcaa}.gc-symbol.diamond-green{width:clamp(15px,10cqh,24px);height:clamp(15px,10cqh,24px);transform:rotate(45deg);border-width:3px}.gc-stimulus-cue .gc-symbol{width:16px;height:16px;border-width:3px}
/* Reading task instructions pauses every pending stimulus timer. */
.gc-help-overlay{position:absolute;inset:0;z-index:10;display:flex;align-items:center;justify-content:center;padding:24px;background:#f4f7eeed;backdrop-filter:blur(5px);overflow:auto}.gc-help-card{max-width:580px;width:100%;max-height:100%;overflow:auto;padding:28px;border:1px solid #ccddba;border-radius:12px;background:#fffef9;box-shadow:0 12px 42px #30411e16;scrollbar-width:thin}.gc-help-card h2{font-size:26px;line-height:1.25;margin:8px 0 16px;color:#294a24}.gc-help-card>p:not(.gc-eyebrow){font-size:14px;line-height:1.85;color:#5e754b;margin:0 0 18px}.gc-help-card .gc-help-note{font-size:12px!important;color:#7c9069!important;border-top:1px solid #e2ebd7;padding-top:15px}.gc-help-card .gc-btn{width:100%}
.gc-transition{flex:1;min-height:0;overflow:auto;overscroll-behavior:contain;display:flex;align-items:center;justify-content:safe center;flex-direction:column;text-align:center;padding:24px 20px}.gc-transition-mark{width:64px;height:64px;display:grid;place-items:center;flex-shrink:0;border:1px solid #cee0b6;border-radius:15px;background:#e7f0d7;color:#7b9e55;font-size:28px;margin-bottom:23px}.gc-transition h1{font-size:30px;max-width:720px}.gc-transition>p:not(.gc-eyebrow){font-size:14px;line-height:1.8;color:#6f835a;max-width:600px;margin:18px 0 25px}.gc-action-row{display:flex;gap:12px;align-items:center;justify-content:center;flex-wrap:wrap;flex-shrink:0}
/* Reports retain full labels and explain all observed metrics. */
.gc-results{display:flex;flex-direction:column;flex:1;min-height:0;overflow:hidden}.gc-report-header{display:flex;justify-content:space-between;align-items:center;gap:18px;padding:2px 0 22px;flex-shrink:0}.gc-report-header>div{min-width:0}.gc-report-header h1{font-size:32px;margin-top:7px;overflow-wrap:anywhere}.gc-report-stamp{display:flex;align-items:center;gap:9px;font-size:12px;color:#77935b;flex-shrink:0}.gc-report-stamp i{height:28px;width:28px;display:grid;place-items:center;border:1px solid #d2e3be;border-radius:50%;background:#e5f0d2;font-style:normal}.gc-report-scroll{flex:1;min-height:0;overflow:auto;overscroll-behavior:contain;padding-right:5px;scrollbar-width:thin;scrollbar-gutter:stable}.gc-report-summary{display:flex;justify-content:space-between;align-items:center;gap:28px;padding-bottom:22px}.gc-report-summary p{font-size:14px;line-height:1.8;color:#6d8257;max-width:720px;margin:0}.gc-report-summary>span{display:flex;align-items:center;gap:12px;white-space:nowrap;font-size:12px;color:#7b9165}.gc-report-summary b{font-size:24px;line-height:1;font-weight:400;color:#567b37}.gc-metrics{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}.gc-metric{position:relative;display:flex;flex-direction:column;gap:10px;min-width:0;min-height:155px;border:1px solid #d5e2c4;border-radius:10px;background:#fcfef7;padding:22px}.gc-metric-main{background:#e5f0d0;border-color:#cddfb2}.gc-metric>span{font-size:12px;line-height:1.5;color:#69834e;overflow-wrap:anywhere}.gc-metric>strong{font-size:40px;font-weight:400;line-height:1.05;letter-spacing:-.04em;color:#466c2c;overflow-wrap:anywhere}.gc-metric>strong.gc-no-data{font-size:22px;line-height:1.4;letter-spacing:-.02em}.gc-metric>small{font-size:12px;color:#829a67}.gc-metric-bar{position:absolute;right:22px;bottom:23px;width:40%;height:4px;border-radius:3px;overflow:hidden;background:#d9e8c4}.gc-metric-bar>i{height:100%;display:block;background:#91b65e}.gc-report-notes{font-size:14px;line-height:1.85;color:#70855c;margin:22px 0}.gc-report-notes p{margin:10px 0}.gc-report-actions{display:flex;align-items:center;justify-content:space-between;gap:24px;border-top:1px solid #dce7cf;padding-top:16px;flex-shrink:0}.gc-report-actions>p{font-size:12px;line-height:1.6;color:#7c9266;max-width:470px;margin:0}.gc-report-actions .gc-action-row{flex-wrap:nowrap}
@media(min-width:1024px) and (max-width:1199px){.gc-cards{grid-template-columns:repeat(3,minmax(0,1fr))}}
@media(min-width:601px) and (max-width:1023px){.gc-cards{grid-template-columns:repeat(2,minmax(0,1fr))}.gc-intro{grid-template-columns:.65fr 1.35fr}.gc-intro-art>div{transform:scale(1.45)}.gc-intro-content{padding:24px}.gc-metrics{grid-template-columns:repeat(2,minmax(0,1fr))}}
/* Short desktop screens keep a generous stimulus and a dedicated response column. */
@media(min-width:801px) and (max-height:700px){
  .gc-top{min-height:40px;margin-bottom:8px}.gc-back{min-height:40px}.gc-session{grid-template-columns:minmax(0,1fr) 216px;grid-template-rows:auto 3px auto minmax(0,1fr) 28px;column-gap:22px;padding:14px 20px 9px}.gc-session-heading{grid-column:1/-1;grid-row:1;padding-bottom:10px;gap:20px}.gc-session-heading>div:first-child{display:flex;align-items:baseline;gap:14px}.gc-session-heading .gc-eyebrow{margin:0;font-size:12px!important}.gc-session-heading h1{font-size:24px}.gc-progress{grid-column:1/-1;grid-row:2}.gc-session-meta{grid-column:1/-1;grid-row:3;padding-top:7px;padding-bottom:3px}.gc-stage{grid-column:1;grid-row:4;padding:7px 0}.gc-response-dock{grid-column:2;grid-row:4;border-top:0;border-left:1px solid #deead0;padding:8px 0 8px 21px;gap:10px;min-height:0;overflow:auto;scrollbar-width:thin}.gc-response-options{flex-direction:column;gap:9px;max-width:none}.gc-choice,.gc-color-choices .gc-choice{flex:none;max-width:none;min-height:44px;padding:9px 12px;font-size:14px}.gc-choice kbd{min-width:23px;height:23px}.gc-dock-hint{font-size:12px;line-height:1.4}.gc-feedback{grid-column:1/-1;grid-row:5}.gc-corsi-board{width:min(350px,calc(100cqw - 48px));height:min(270px,calc(100cqh - 48px))}.gc-sequence-dots{max-width:160px}.gc-nback-arena,.gc-switch-arena{gap:10px}.gc-stimulus-cue{font-size:14px}.gc-rotation-arena{max-width:600px}.gc-library-heading{padding-bottom:16px}.gc-library h1{font-size:30px}.gc-library-toolbar{padding-bottom:14px}.gc-intro-content{padding:23px 26px}.gc-intro h1{font-size:28px}.gc-intro-actions{padding-top:15px}.gc-transition{padding:15px 20px}.gc-transition-mark{width:48px;height:48px;font-size:23px;margin-bottom:16px}.gc-transition h1{font-size:27px}.gc-transition>p:not(.gc-eyebrow){margin:13px 0 20px}.gc-report-header{padding-bottom:16px}.gc-report-header h1{font-size:28px}.gc-report-summary{padding-bottom:18px}.gc-report-actions{padding-top:12px}
}
@media(min-width:801px) and (max-height:540px){
  .gc-top{min-height:36px;margin-bottom:6px}.gc-back{min-height:36px}.gc-session{padding:10px 17px 7px;grid-template-columns:minmax(0,1fr) 205px;column-gap:18px}.gc-session-heading{padding-bottom:8px}.gc-session-heading h1{font-size:22px}.gc-session-meta{padding-top:5px;padding-bottom:2px}.gc-response-dock{padding-left:17px;gap:8px}.gc-dock-hint{display:none}.gc-response-options{gap:7px}.gc-choice,.gc-color-choices .gc-choice{min-height:44px;padding:9px 12px}.gc-stage{padding:5px 0}.gc-library-heading{padding-bottom:13px}.gc-library-heading>div>p:last-child{margin-top:6px}.gc-library-toolbar{padding-bottom:12px}.gc-library-footer{padding-top:10px}.gc-help-overlay{padding:15px}.gc-help-card{padding:22px}.gc-help-card h2{font-size:24px}.gc-transition-mark{display:none}.gc-transition h1{font-size:26px}.gc-transition>p:not(.gc-eyebrow){margin:11px 0 17px}.gc-report-actions>p{max-width:360px}
}
@media(max-width:800px){
  .gc-library-toolbar{flex-direction:column;align-items:stretch;gap:10px}.gc-filters{width:100%;flex-wrap:nowrap}.gc-search{width:100%;max-width:none;min-width:0}.gc-library-footer>span:last-child{display:none}.gc-session-heading{gap:12px}.gc-session-heading h1{font-size:23px}.gc-session-actions{gap:7px}.gc-help-trigger,.gc-exit{padding:9px 10px}.gc-report-actions>p{max-width:220px}.gc-report-actions .gc-btn{padding-left:15px;padding-right:15px}
}
@media(max-width:600px){
  .gc-library h1{font-size:28px}.gc-library-heading{gap:12px;padding-bottom:15px}.gc-library-count{display:none}.gc-library-heading>div>p:last-child{font-size:14px}.gc-filters button{font-size:12px;padding:9px 12px}.gc-library-toolbar{padding-bottom:14px}.gc-cards{grid-template-columns:1fr;gap:13px}.gc-card{display:grid;grid-template-columns:75px minmax(0,1fr);column-gap:17px;min-height:190px;padding:15px 17px 0}.gc-card-top{grid-column:1/-1}.gc-card-art{grid-column:1;grid-row:2/4;height:auto;margin:14px 0 20px}.gc-card-copy{grid-column:2;grid-row:2;padding-top:12px}.gc-card h2{font-size:20px;margin:6px 0 8px}.gc-card-copy>p{font-size:14px;line-height:1.65}.gc-card-bottom{grid-column:2;grid-row:3;margin-top:14px;padding:11px 0}.gc-card-bottom>span{font-size:12px;letter-spacing:0}.gc-card-art .gc-art-word{flex-direction:column;gap:0;font-size:24px}.gc-card-art .gc-art-word b:last-child{transform:translate(10px,0)}.gc-card-art .gc-art-inhibit{flex-direction:column;gap:15px}.gc-card-art .gc-art-back{transform:scale(.86);gap:4px}.gc-card-art .gc-art-rotation{flex-direction:column;gap:0}.gc-card-art .gc-art-rotation svg{width:56px;height:56px}.gc-card-art .gc-art-switch{flex-direction:column;gap:0;font-size:30px}.gc-card-art .gc-art-switch i{font-size:17px}.gc-card-art .gc-art-flanker{gap:3px;font-size:28px}.gc-library-footer{padding-top:12px;font-size:12px}.gc-top{gap:12px;margin-bottom:9px}.gc-tag{font-size:12px;max-width:43%}.gc-back{font-size:12px}.gc-intro{display:flex;flex-direction:column}.gc-intro-art{height:110px;min-height:110px;flex-shrink:0}.gc-intro-art>div{transform:scale(1)}.gc-intro-art:before{width:150px;height:150px}.gc-intro-art:after{width:200px;height:200px}.gc-intro-number{top:14px;left:16px;font-size:12px}.gc-art-caption{bottom:13px;right:15px;left:auto;text-align:right;font-size:12px;max-width:43%;line-height:1.4}.gc-intro-content{padding:20px;flex:1;min-height:0}.gc-intro h1{font-size:27px}.gc-description{font-size:14px;margin:13px 0 17px}.gc-instructions{padding:17px}.gc-instructions p{font-size:14px}.gc-method{font-size:12px}.gc-intro-actions{padding-top:16px;gap:12px;align-items:center}.gc-intro-actions .gc-btn{min-width:130px}.gc-intro-actions>span{font-size:12px}.gc-disclaimer{font-size:12px!important;max-height:38px;margin-top:10px}.gc-session{border-radius:10px;padding:14px 14px 8px}.gc-session-heading{padding-bottom:12px;gap:11px}.gc-session-heading h1{font-size:22px}.gc-session-heading .gc-eyebrow{font-size:12px!important}.gc-session-actions{gap:5px}.gc-help-trigger{width:44px;min-width:44px;padding:9px}.gc-help-text{display:none}.gc-help-trigger>span:last-child{font-size:18px}.gc-exit{font-size:12px;max-width:82px;line-height:1.35;padding:8px}.gc-session-meta{font-size:12px;gap:10px;padding-top:8px;padding-bottom:3px}.gc-session-meta>span:last-child{max-width:61%}.gc-stage{padding:6px 0}.gc-response-dock{padding-top:11px;gap:8px}.gc-response-options{gap:9px}.gc-choice{font-size:14px;min-height:46px;padding:10px 12px;gap:9px}.gc-choice kbd{height:24px;min-width:24px;font-size:12px}.gc-color-choices{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}.gc-color-choices .gc-choice{max-width:none;min-height:44px;padding:9px 12px;gap:8px;font-size:14px}.gc-dock-hint{display:none}.gc-feedback{font-size:12px;height:28px;line-height:28px}.gc-stroop-word{font-size:clamp(36px,27cqh,60px)}.gc-corsi-board{width:min(305px,calc(100cqw - 44px));height:min(265px,calc(100cqh - 44px))}.gc-corsi-block{height:44px;width:44px}.gc-nback-arena,.gc-switch-arena{gap:10px}.gc-stimulus-cue{font-size:12px}.gc-nback-letter,.gc-switch-digit{font-size:clamp(48px,36cqh,86px)}.gc-switch-rule{font-size:14px;padding:8px 13px}.gc-rotation-arena{gap:8px}.gc-rotation-arena figure{gap:8px}.gc-rotation-arena figcaption{font-size:12px}.gc-rotation-divider{font-size:26px}.gc-flanker-arena{font-size:clamp(28px,10cqw,45px);gap:8px}.gc-search-arena{gap:9px}.gc-search-field{column-gap:12px;row-gap:clamp(5px,3cqh,10px)}.gc-search-cell{width:clamp(23px,14cqh,32px);height:clamp(23px,14cqh,32px)}.gc-symbol{border-width:3px}.gc-help-overlay{padding:13px}.gc-help-card{padding:21px}.gc-help-card h2{font-size:24px}.gc-help-card>p:not(.gc-eyebrow){font-size:14px}.gc-help-card .gc-help-note{font-size:12px!important}.gc-transition{padding:18px 10px}.gc-transition h1{font-size:26px}.gc-transition>p:not(.gc-eyebrow){font-size:14px;margin:15px 0 22px}.gc-transition-mark{width:54px;height:54px;font-size:25px;margin-bottom:19px}.gc-report-header{gap:12px;padding-bottom:17px}.gc-report-header h1{font-size:26px}.gc-report-stamp{font-size:12px;gap:7px}.gc-report-stamp i{height:24px;width:24px}.gc-report-summary{flex-direction:column;align-items:flex-start;gap:12px;padding-bottom:17px}.gc-report-summary p{font-size:14px}.gc-report-summary>span{font-size:12px}.gc-metrics{grid-template-columns:repeat(2,minmax(0,1fr));gap:11px}.gc-metric{min-height:147px;padding:18px 15px;gap:9px}.gc-metric>span{font-size:12px}.gc-metric>strong{font-size:35px}.gc-metric>strong.gc-no-data{font-size:19px}.gc-metric>small{font-size:12px}.gc-metric-bar{right:15px;bottom:20px;width:35%}.gc-report-notes{font-size:14px;margin:17px 0}.gc-report-actions{flex-direction:column-reverse;gap:12px;padding-top:14px}.gc-report-actions>p{max-width:none;font-size:12px}.gc-report-actions .gc-action-row{width:100%;gap:9px}.gc-report-actions .gc-btn{flex:1;font-size:14px;padding:10px 12px}
}
@media(max-width:600px) and (max-height:700px){
  .gc-top{min-height:40px;margin-bottom:7px}.gc-back{min-height:40px}.gc-session{padding:11px 12px 6px;grid-template-rows:auto 3px auto minmax(0,1fr) auto 26px}.gc-session-heading{padding-bottom:9px}.gc-session-heading h1{font-size:21px}.gc-session-heading .gc-eyebrow{margin-bottom:3px}.gc-session-meta{padding-top:6px;padding-bottom:2px}.gc-stage{padding:4px 0}.gc-response-dock{padding-top:9px;gap:6px}.gc-feedback{height:26px;line-height:26px}.gc-intro-art{height:85px;min-height:85px}.gc-intro-content{padding:17px}.gc-intro-actions{padding-top:12px}.gc-description{margin:11px 0 15px}.gc-report-header{padding-bottom:13px}.gc-report-header h1{font-size:25px}.gc-report-actions>p{max-height:40px;overflow:auto}.gc-transition-mark{margin-bottom:14px;width:47px;height:47px;font-size:22px}
}
/* Extremely narrow widths trade columns for readable cards, never smaller body copy. */
@media(max-width:360px){.gc-library h1{font-size:26px}.gc-card{grid-template-columns:60px minmax(0,1fr);gap:0 12px;padding-left:13px;padding-right:13px}.gc-card h2{font-size:19px}.gc-card-art .gc-art-word{font-size:21px}.gc-card-art .gc-art-flanker{font-size:23px;gap:1px}.gc-card-art .gc-art-back{transform:scale(.73)}.gc-session{padding-left:10px;padding-right:10px}.gc-session-heading h1{font-size:20px}.gc-exit{max-width:70px}.gc-tag{max-width:45%;padding-left:7px;padding-right:7px}.gc-choice,.gc-color-choices .gc-choice{padding-left:9px;padding-right:9px;font-size:14px}.gc-choice kbd{min-width:20px;height:22px}.gc-color-choice>i{height:9px;width:9px}.gc-intro-content{padding:15px}.gc-intro-actions{flex-wrap:wrap;gap:10px}.gc-intro-actions .gc-btn{flex:1}.gc-intro-actions>span{display:none}.gc-metrics{grid-template-columns:1fr}.gc-metric{min-height:135px}.gc-report-stamp{display:none}}
/* On 320px phones the same nine targets use wider-spaced rows, keeping 44px hit areas distinct. */
@media(max-width:360px){
  .gc-corsi-block:nth-child(1){left:1%!important;top:5%!important}
  .gc-corsi-block:nth-child(2){left:42%!important;top:0!important}
  .gc-corsi-block:nth-child(3){left:81%!important;top:6%!important}
  .gc-corsi-block:nth-child(4){left:5%!important;top:43%!important}
  .gc-corsi-block:nth-child(5){left:43%!important;top:39%!important}
  .gc-corsi-block:nth-child(6){left:81%!important;top:45%!important}
  .gc-corsi-block:nth-child(7){left:0!important;top:80%!important}
  .gc-corsi-block:nth-child(8){left:40%!important;top:81%!important}
  .gc-corsi-block:nth-child(9){left:79%!important;top:80%!important}
}
@media(prefers-reduced-motion:reduce){.gc-card,.gc-progress>span,.gc-choice,.gc-corsi-block{transition:none}}