/* Desktop lesson workspace. Loaded only by lesson.html after the shared stylesheet. */
body[data-page=lesson]{background:#0e1013}.lesson-workbench{font-family:var(--sans);min-height:100svh;color:#e8edf1}.lesson-workbench .lesson-top{max-width:1480px;padding:20px 34px;margin:0 auto;gap:38px;min-height:80px}.lesson-workbench .lesson-exit{display:flex;align-items:center;gap:9px;text-decoration:none;color:#bdc7d2;font-size:12px;white-space:nowrap}.lesson-workbench .lesson-exit:hover{color:#d1e2b7}.lesson-workbench .lesson-progress{display:grid;grid-template-columns:auto minmax(100px,1fr) 33px;align-items:center;gap:17px;max-width:660px;margin:auto}.lesson-workbench .lesson-progress>span{font-size:12px;color:#d0d7df;max-width:none;white-space:nowrap}.lesson-workbench .lesson-progress>b{font-size:11px;font-weight:500;color:#a4b1bf;white-space:nowrap}.lesson-workbench .lesson-progress progress{height:7px;border-radius:4px;background:#29313a}.lesson-workbench .lesson-progress progress::-webkit-progress-bar{background:#29313a}.lesson-workbench .lesson-progress progress::-webkit-progress-value{background:#b5ce95;border-radius:4px}.lesson-workbench .lesson-progress progress::-moz-progress-bar{background:#b5ce95;border-radius:4px}.lesson-save-state{display:flex;align-items:center;gap:7px;font-size:10px;color:#99a9b4;white-space:nowrap}.lesson-save-state svg{color:#a9c790}.lesson-board{width:calc(100% - 68px);max-width:1412px;margin:8px auto 0;display:grid;grid-template-columns:270px minmax(0,1fr);border:1px solid #303942;border-radius:12px;overflow:hidden;background:#13191f;align-items:stretch}.lesson-outline{padding:29px 23px 24px;background:#11161b;border-right:1px solid #303942;display:flex;flex-direction:column;min-width:0}.lesson-outline-title h1{font-family:var(--sans);font-size:23px;line-height:1.35;letter-spacing:-.02em;font-weight:600;margin:0;color:#e6ecee;text-wrap:balance}.lesson-outline-title>span{display:flex;align-items:center;gap:6px;font-size:10px;color:#98a7b3;margin-top:14px}.lesson-step-nav{display:flex;flex-direction:column;gap:5px;margin:27px 0 29px}.lesson-step-nav button{background:transparent;color:#aab6c0;text-align:left;display:flex;align-items:center;gap:11px;padding:11px 10px;border-radius:7px;font-size:12px;min-height:46px;border:1px solid transparent;width:100%;opacity:1}.lesson-step-nav button:disabled{color:#788896;cursor:default}.lesson-step-nav button:not(:disabled):hover{background:#1c252d}.lesson-step-nav button[aria-current=step]{background:#223026;border-color:#3c5039;color:#e0eacb}.step-marker{display:grid;place-items:center;width:24px;height:24px;border:1px solid #394650;border-radius:50%;color:#a4b1bc;font-size:10px;flex-shrink:0}.lesson-step-nav button[aria-current=step] .step-marker{border-color:#9db982;background:#a8c58a;color:#182315;font-weight:650}.lesson-step-nav button>span:nth-child(2){font-weight:500}.current-step-label{margin-left:auto;font-size:9px;color:#bccfae}.lesson-instruction{border-top:1px solid #2a343e;padding-top:19px}.lesson-instruction h2{font-size:12px;font-weight:600;letter-spacing:0;color:#ccd6dc;margin:0 0 9px}.lesson-instruction p{font-size:12px;color:#a2b1be;line-height:1.8;margin:0}.lesson-workbench .lesson-glossary{font-size:11px;color:#b8c6d0;margin:22px 0}.lesson-workbench .lesson-glossary summary{display:flex;align-items:center;justify-content:space-between;list-style:none;cursor:pointer;padding:10px 0;border-top:1px solid #2c3741}.lesson-workbench .lesson-glossary summary::-webkit-details-marker{display:none}.lesson-workbench .lesson-glossary summary svg{transform:rotate(90deg);color:#9cafa9}.lesson-workbench .lesson-glossary[open] summary svg{transform:rotate(-90deg)}.lesson-workbench .lesson-glossary dl{padding:0;background:transparent;margin:0;border-radius:0}.lesson-workbench .lesson-glossary dl>div{border-bottom:1px solid #26323e;margin:0;padding:13px 0}.lesson-workbench .lesson-glossary dt{font-size:11px;color:#d3ddd8;font-weight:600}.lesson-workbench .lesson-glossary dd{font-size:11px;color:#a5b7c5;line-height:1.8;margin:5px 0 0}.lesson-sidebar-note{margin-top:auto;padding-top:25px;display:flex;gap:9px;align-items:start;color:#9bb2a0}.lesson-sidebar-note svg{flex-shrink:0;margin-top:2px}.lesson-sidebar-note p{font-size:10px;line-height:1.8;color:#9daebc;margin:0}.lesson-workspace{display:flex;flex-direction:column;min-width:0;background:#151c23}.workspace-main{padding:27px 27px 26px;flex:1;min-height:535px;min-width:0}.lesson-workbench .exercise-heading{margin:0 0 22px}.lesson-workbench .exercise-heading>div{display:flex;align-items:center;justify-content:space-between;gap:20px}.lesson-workbench .exercise-heading h2{font-family:var(--sans);font-size:23px;font-weight:600;line-height:1.3;letter-spacing:-.025em;color:#edf0ed;margin:0}.lesson-workbench .exercise-heading>p{font-size:14px;line-height:1.85;color:#bdc9d3;max-width:77ch;margin:14px 0 0}.intro-preview-label{font-size:10px;color:#b9cbaa;white-space:nowrap}.workspace-notice{font-size:13px;color:#b3c3d1;margin-top:30px}.lesson-workbench .example-label{font-size:10px;color:#9fafbb;background:#151f27;padding:9px 16px;border-bottom:1px solid #2d3b46;line-height:1.6}.lesson-workbench .tool-title{font-size:12px;color:#dfe9e9;background:#1b252c;padding:13px 16px;gap:9px;display:flex;align-items:center;border-bottom:1px solid #34424d;line-height:1.5}.lesson-workbench .tool-title>span{font-size:10px;font-weight:400;color:#9fb1bf;margin-left:auto}.lesson-workbench .explorer-example,.lesson-workbench .bubble-example,.lesson-workbench .trade-example,.lesson-workbench .pulse-example,.lesson-workbench .sources-example{border:1px solid #34424d;border-radius:8px;background:#10181f;overflow:hidden;margin:0}.lesson-workbench .inspection-result{font-size:12px;line-height:1.75;color:#bdccda;padding:13px 16px;background:#1a2932;margin:0;min-height:48px}.lesson-workbench .tool-footnote{font-size:10px;line-height:1.7;color:#96acbc;padding:11px 16px;margin:0;border-top:1px solid #283843}.explorer-table-head{display:grid;grid-template-columns:155px minmax(0,1fr) 40px;gap:17px;padding:10px 16px;color:#8da1b2;font-size:10px;border-bottom:1px solid #2d3b46}.explorer-table-head>span:last-child{text-align:center}.lesson-workbench .explorer-field{display:grid;grid-template-columns:155px minmax(0,1fr) 40px;gap:17px;padding:18px 16px;align-items:center;border:0;border-bottom:1px solid #2b3b47;background:#152029;color:#d6e1e9;width:100%;text-align:left;min-height:63px}.lesson-workbench .explorer-field>span{font-size:12px;color:#a7bbc8}.lesson-workbench .explorer-field>strong{font-size:13px;font-weight:500;line-height:1.7;overflow-wrap:anywhere}.lesson-workbench .explorer-field>svg{color:#abc38f;justify-self:center}.lesson-workbench .explorer-field:hover,.lesson-workbench .explorer-field.inspected{background:#24372f}.field-detail{display:flex;align-items:start;gap:0;background:#1a2932}.field-detail>span{padding:17px 0 0 16px;color:#abc896}.field-detail .inspection-result{padding-left:11px;min-height:72px;flex:1}.map-workspace{display:grid;grid-template-columns:minmax(0,1fr) 195px}.map-canvas{min-width:0;background:#111c24;overflow:hidden;position:relative}.lesson-workbench .bubble-svg{width:100%;height:345px;max-height:none;display:block}.lesson-workbench .bubble-links path{stroke:#69889b;stroke-width:2;fill:none}.lesson-workbench .bubble circle{fill:#91b490;stroke:#c3d5ad;stroke-width:2;transition:fill .16s ease,stroke-width .16s ease;cursor:pointer}.lesson-workbench .bubble.pool circle,.lesson-workbench .bubble.exchange circle{fill:#89a9bd;stroke:#c0d6e2}.lesson-workbench .bubble text{fill:#132318;font-family:var(--sans);font-size:12px;font-weight:600;pointer-events:none}.lesson-workbench .bubble text.bubble-percentage{font-size:13px;font-weight:500}.lesson-workbench .bubble.selected circle,.lesson-workbench .bubble:hover circle{fill:#c6d69a;stroke:#e4ebc8;stroke-width:4}.lesson-workbench .bubble.pool.selected circle,.lesson-workbench .bubble.pool:hover circle{fill:#bdd6e3}.lesson-workbench .bubble:focus-visible{outline:none}.lesson-workbench .bubble:focus-visible circle{stroke:#f0efc8;stroke-width:5}.map-legend{display:flex;justify-content:center;gap:18px;padding:0 10px 16px;color:#8fa6b9;font-size:9px}.map-legend>span{display:flex;align-items:center;gap:6px;white-space:nowrap}.map-legend i{display:block;width:7px;height:7px;border-radius:50%;background:#91b490}.map-legend i.pool-dot{background:#89a9bd}.map-legend i.link-line{width:15px;height:1px;border-radius:0;background:#7897aa}.map-inspector{background:#17232c;border-left:1px solid #2d3e49;padding:20px 16px;min-width:0}.map-inspector h3{font-size:14px;font-weight:600;letter-spacing:0;margin:0 0 10px;color:#e0e8e7}.map-inspector-help{font-size:11px;color:#9db2c2;line-height:1.8;margin:0 0 17px}.map-inspector dl{margin:0}.map-inspector dl>div{border-top:1px solid #2d414e;padding:10px 0;display:flex;justify-content:space-between;gap:12px;align-items:baseline}.map-inspector dt{font-size:10px;color:#96b0c4}.map-inspector dd{font-size:14px;font-weight:500;color:#d6e6dd;margin:0;text-transform:capitalize}.map-inspector .inspection-result{font-size:10px;line-height:1.8;padding:12px 0 0;background:none;margin-top:7px;border-top:1px solid #2e414e;min-height:0}.lesson-workbench .bubble-controls{display:flex;flex-wrap:wrap;gap:7px;padding:12px 16px;border-top:1px solid #293c48;background:#17222a}.lesson-workbench .chip{font-size:10px;display:flex;gap:8px;align-items:center;padding:7px 10px;color:#b6c7d0;background:#22323d;border:1px solid #3b5361;border-radius:5px}.lesson-workbench .chip>span{color:#d8e2d0;font-size:10px}.lesson-workbench .chip:hover,.lesson-workbench .chip.selected{background:#354c38;border-color:#9db57f;color:#e1e9d0}.lesson-workbench .answer-options{padding:0;border:0;margin:26px 0 0;min-width:0}.lesson-workbench .answer-options>legend{font-size:15px;font-weight:600;line-height:1.65;max-width:760px;color:#e5eceb;margin-bottom:13px;padding:0}.lesson-workbench .answer-option{display:flex;align-items:center;gap:13px;padding:13px 15px;border:1px solid #3a4a56;border-radius:7px;min-height:54px;margin:9px 0 0;color:#c9d6df;background:#19232c;line-height:1.7;font-size:12px;position:relative;cursor:pointer}.lesson-workbench .answer-option input{position:absolute;inset:0;width:100%;height:100%;opacity:0;cursor:pointer;margin:0}.lesson-workbench .answer-option:hover{background:#223039;border-color:#637578}.lesson-workbench .answer-option.selected{background:#283d2d;border-color:#afc78d;color:#e3ecd4}.lesson-workbench .answer-option:has(input:focus-visible){outline:2px solid #c4d8a9;outline-offset:3px}.lesson-workbench .answer-letter{display:grid;place-items:center;flex-shrink:0;width:23px;height:23px;padding:0;font-size:10px;color:#a9beca;border:1px solid #4b6474;border-radius:4px}.lesson-workbench .answer-option.selected .answer-letter{border-color:#adc68b;color:#e5edcc}.answer-radio{margin-left:auto;width:14px;height:14px;flex-shrink:0;border:1px solid #526e80;border-radius:50%}.answer-option.selected .answer-radio{border:4px solid #bdd39b;background:#263b29}.lesson-workbench .exercise-footer{position:static;inset:auto;display:flex;align-items:center;justify-content:space-between;gap:25px;padding:17px 26px;min-height:86px;background:#172129;border-top:1px solid #34434d;z-index:auto}.lesson-workbench .exercise-feedback{display:flex;align-items:start;gap:11px;max-width:none;flex:1;margin:0}.lesson-workbench .exercise-feedback>span{display:flex;padding-top:1px}.lesson-workbench .exercise-feedback svg{color:#abc78c;flex-shrink:0;margin-top:2px}.lesson-workbench .exercise-feedback p{font-size:11px;color:#a7bdca;line-height:1.8;margin:0;max-width:72ch}.lesson-workbench .exercise-feedback strong{color:#e0ebc9;font-weight:600}.lesson-workbench .exercise-footer>.button{min-width:155px;min-height:42px;font-size:12px;line-height:1.4;padding:11px 15px;gap:12px;flex-shrink:0}.lesson-workbench .exercise-footer.correct{background:#263a2c;border-color:#4b6241}.lesson-workbench .exercise-footer.correct .exercise-feedback p{color:#d2dfbf}.lesson-workbench .exercise-footer.retry{background:#352e23;border-color:#6b5739}.lesson-workbench .exercise-footer.retry .exercise-feedback p{color:#e0cfae}.lesson-bottom-note{max-width:1412px;width:calc(100% - 68px);margin:15px auto 25px;display:flex;justify-content:space-between;gap:25px;align-items:center;font-size:9px;color:#879bab}.lesson-bottom-note>span{font-size:10px;color:#a0b3ba}.lesson-bottom-note p{margin:0;line-height:1.7;text-align:right}.source-grid{display:grid;grid-template-columns:1fr 1fr;gap:0}.lesson-workbench .source-post{margin:0;padding:22px 20px;background:#142029;border:0;border-right:1px solid #314351;border-radius:0;min-width:0}.lesson-workbench .source-post:last-child{border-right:0}.lesson-workbench .source-post>div{display:flex;gap:10px;align-items:center;flex-wrap:wrap}.lesson-workbench .source-avatar{width:31px;height:31px;background:#2a424f;flex-shrink:0}.lesson-workbench .source-post>div>span:nth-child(2){min-width:0;flex:1;display:flex;flex-direction:column;gap:3px}.lesson-workbench .source-post strong{font-size:12px;line-height:1.6;font-weight:600}.lesson-workbench .source-post small{margin:0;font-size:9px;color:#8faabf;line-height:1.7}.lesson-workbench .source-post>div>small{width:100%;padding-left:41px;margin-top:-5px}.lesson-workbench .source-post p{font-size:14px;color:#cad9e4;line-height:1.9;margin:22px 0;min-height:80px}.lesson-workbench .source-post>a{font-size:11px;color:#c8dcaa}.source-observations{border-top:1px solid #33434f;padding:12px 17px;background:#192831}.source-observations>div{display:grid;grid-template-columns:135px 1fr;gap:15px;padding:8px 0;align-items:baseline}.source-observations span{font-size:10px;color:#9fb7c9}.source-observations strong{font-size:11px;color:#c5d6df;line-height:1.8;font-weight:500}.lesson-workbench .candidate-example{display:grid;grid-template-columns:35px minmax(0,1fr) 115px;gap:13px;padding:18px 17px;background:#15212a;border:0;border-bottom:1px solid #304550;box-shadow:none;width:100%;text-align:left;color:#d9e5e9;min-height:100px}.lesson-workbench .candidate-example[aria-pressed=true]{background:#2a3e30;box-shadow:inset 0 0 0 1px #a2ba81}.lesson-workbench .example-token{width:34px;height:34px;font-size:13px;border-radius:7px;background:#344e41;color:#d8e6c5;display:grid;place-items:center}.lesson-workbench .candidate-example>span:nth-child(2){display:flex;flex-direction:column;gap:6px;min-width:0}.lesson-workbench .candidate-example strong{font-size:13px;font-weight:600;line-height:1.5}.lesson-workbench .candidate-example strong small{font-size:10px;display:inline;color:#a7becb;font-weight:400}.lesson-workbench .candidate-example>span:nth-child(2)>span{font-size:11px;color:#a7bdcb;line-height:1.7}.lesson-workbench .candidate-example>span:last-child{font-size:11px;text-align:right;display:flex;flex-direction:column;gap:4px}.lesson-workbench .candidate-example small{font-size:9px;color:#92acbf}.lesson-workbench .candidate-example b{font-size:15px;color:#d2dfb2;font-weight:500}.lesson-workbench .candidate-example.wait-option{display:flex;gap:9px;min-height:51px;color:#c1d3bd;font-size:11px;background:#1d3028;padding:14px 17px}.trade-workspace{display:grid;grid-template-columns:minmax(0,1fr) 280px}.trade-market{min-width:0;border-right:1px solid #334854}.lesson-workbench .reference-scenario{padding:16px 17px;background:#152430;border-bottom:1px solid #314653}.lesson-workbench .reference-scenario>strong{display:block;font-size:11px;color:#c7dbb0;font-weight:500;margin-bottom:10px}.lesson-workbench .reference-scenario>div{display:flex;justify-content:space-between;gap:15px;font-size:10px;line-height:1.8;margin-top:7px}.lesson-workbench .reference-scenario>div>span{color:#96b2c9}.lesson-workbench .reference-scenario b{font-size:10px;font-weight:500;color:#d1e0eb;text-align:right}.lesson-workbench .lesson-chart{width:100%;height:265px;display:block;background:#101b24}.lesson-workbench .mini-ticket{padding:17px;background:#17242d;min-width:0}.lesson-workbench .mini-balance{display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:10px;color:#a8bed0}.lesson-workbench .mini-balance strong{color:#d8e7d8;font-size:12px;font-weight:600}.lesson-workbench .mini-ticket>p{font-size:11px;color:#a6bdcc;line-height:1.8;margin:13px 0}.lesson-workbench .trade-sides{margin:15px 0;display:flex;gap:4px}.lesson-workbench .trade-sides button{font-size:11px;min-height:34px;padding:9px 10px}.lesson-workbench .mini-ticket label{font-size:10px;color:#b7cddd;display:block;margin-bottom:7px}.lesson-workbench .mini-ticket input{width:100%;background:#101d27;border:1px solid #3c586b;border-radius:5px;color:#dfe9ed;font-size:14px;padding:10px 11px}.lesson-workbench .mini-presets{display:flex;gap:5px;margin:10px 0 15px}.lesson-workbench .mini-presets button{font-size:10px;color:#bacfda;background:#253b48;border:1px solid #3c5867;border-radius:4px;padding:7px 6px;flex:1}.lesson-workbench .mini-costs{font-size:9px;line-height:1.9;margin:10px 0;color:#b4cda3}.lesson-workbench .mini-ticket .button{font-size:11px;line-height:1.5;padding:10px 11px;min-height:39px;gap:9px}.lesson-workbench .mini-ticket #mini-pass{margin-top:8px}.lesson-workbench .mini-ticket .mini-holding{font-size:10px;color:#c5d9b4;margin:12px 0}.lesson-workbench .mini-ticket .inspection-result{font-size:10px;background:#1e333e;padding:10px 11px;border-radius:4px;color:#b7ccdb;line-height:1.8;margin-top:13px}.summary-workspace{display:grid;grid-template-columns:44px minmax(0,1fr);gap:18px;border:1px solid #3a5143;border-radius:8px;padding:27px;background:#1e3028;margin-top:27px}.summary-check{width:42px;height:42px;border:1px solid #69835b;border-radius:50%;display:grid;place-items:center;color:#c7dba4}.summary-workspace h3{font-size:17px;line-height:1.5;color:#dce7cd;font-weight:600;letter-spacing:-.015em;margin:0}.summary-workspace p{font-size:13px;line-height:1.9;color:#b1c5b4;max-width:66ch;margin:13px 0 20px}.summary-workspace a{font-size:12px;min-height:40px;padding:10px 14px}.summary-workspace small{font-size:10px;line-height:1.8;color:#9bb5aa;display:block;margin-top:14px}.desktop-complete{max-width:800px;text-align:left;padding:50px 45px 55px;margin:45px auto 65px;background:#161f26;border:1px solid #35454b;border-radius:12px}.desktop-complete .completion-icon{width:57px;height:57px;margin:0 0 23px;background:#2b4430;border:1px solid #6c8a57;color:#d6e8b6;display:grid;place-items:center}.desktop-complete h1{font-family:var(--sans);font-size:32px;line-height:1.25;letter-spacing:-.025em;margin:0 0 15px}.desktop-complete>p{font-size:16px;color:#b2c5d0;line-height:1.7}.desktop-complete .completion-facts{justify-content:start;gap:65px;border-top:1px solid #35434c;border-bottom:1px solid #35434c;padding:25px 0;margin:28px 0}.desktop-complete .completion-facts strong{font-size:24px}.desktop-complete .completion-facts span{font-size:11px}.completion-actions{display:flex;align-items:center;gap:25px}.completion-actions .button{font-size:13px;min-height:44px;padding:12px 17px}.completion-actions .quiet-link{font-size:12px}.desktop-complete .completion-sources{text-align:left;margin:28px 0 0;max-width:none}.desktop-complete .completion-sources summary{font-size:12px}.desktop-complete .completion-sources li{margin-top:10px}.desktop-complete .completion-sources a{font-size:11px;line-height:1.7;display:inline-flex;align-items:center;gap:6px}.desktop-complete .save-note{font-size:10px;line-height:1.8;margin:24px 0 0;max-width:65ch}
@media(min-width:1350px){.lesson-board{grid-template-columns:290px minmax(0,1fr)}.lesson-outline{padding:32px 27px}.lesson-outline-title h1{font-size:25px}.workspace-main{padding:30px 32px;min-height:600px}.lesson-workbench .exercise-heading h2{font-size:25px}.lesson-workbench .exercise-heading>p{font-size:15px;max-width:78ch}.lesson-workbench .bubble-svg{height:375px}.map-workspace{grid-template-columns:minmax(0,1fr) 225px}.map-inspector{padding:23px 20px}.map-inspector h3{font-size:15px}.map-inspector-help{font-size:12px}.map-inspector .inspection-result{font-size:11px}.lesson-workbench .exercise-footer{padding:19px 31px}.lesson-workbench .exercise-feedback p{font-size:12px}.trade-workspace{grid-template-columns:minmax(0,1fr) 300px}.lesson-workbench .lesson-chart{height:310px}.lesson-workbench .mini-ticket{padding:22px}.lesson-workbench .mini-ticket>p{font-size:12px}.lesson-workbench .mini-ticket .button{font-size:12px}}
@media(max-width:1050px){.lesson-workbench .lesson-top{padding:18px 24px;gap:25px}.lesson-save-state{font-size:9px}.lesson-workbench .lesson-progress>span{font-size:11px}.lesson-board{width:calc(100% - 48px);grid-template-columns:230px minmax(0,1fr)}.lesson-outline{padding:24px 19px}.lesson-outline-title h1{font-size:21px}.workspace-main{padding:23px 22px;min-height:560px}.lesson-workbench .exercise-heading h2{font-size:21px}.lesson-workbench .exercise-heading>p{font-size:13px}.intro-preview-label{display:none}.map-workspace{grid-template-columns:minmax(0,1fr) 165px}.lesson-workbench .bubble-svg{height:300px}.map-inspector{padding:17px 12px}.map-inspector h3{font-size:13px}.map-inspector-help{font-size:10px}.map-inspector dt{font-size:9px}.map-inspector dd{font-size:12px}.map-inspector .inspection-result{font-size:9px}.map-legend{gap:10px;font-size:8px}.explorer-table-head,.lesson-workbench .explorer-field{grid-template-columns:125px minmax(0,1fr) 20px;gap:13px}.lesson-workbench .explorer-field>span{font-size:11px}.lesson-workbench .explorer-field>strong{font-size:12px}.lesson-workbench .exercise-footer{padding:17px 21px;gap:18px}.lesson-workbench .exercise-feedback p{font-size:10px}.lesson-workbench .exercise-footer>.button{min-width:142px;font-size:11px}.trade-workspace{grid-template-columns:minmax(0,1fr) 240px}.lesson-workbench .mini-ticket{padding:15px}.lesson-workbench .reference-scenario{padding:14px 13px}.lesson-workbench .reference-scenario>div{display:block}.lesson-workbench .reference-scenario b{display:block;text-align:left}.lesson-workbench .lesson-chart{height:270px}.lesson-bottom-note{width:calc(100% - 48px)}}
@media(max-width:800px){.lesson-workbench .lesson-top{padding:17px 20px;gap:18px;min-height:71px}.lesson-workbench .lesson-exit span{display:none}.lesson-save-state{display:none}.lesson-workbench .lesson-progress{max-width:none}.lesson-board{width:calc(100% - 36px);grid-template-columns:190px minmax(0,1fr);margin-top:4px}.lesson-outline{padding:23px 15px}.lesson-outline-title h1{font-size:19px}.lesson-step-nav button{padding:9px 7px;font-size:11px}.current-step-label{display:none}.lesson-instruction p{font-size:11px}.lesson-workbench .exercise-heading h2{font-size:20px}.workspace-main{padding:21px 18px}.map-workspace{grid-template-columns:1fr}.map-inspector{border-left:0;border-top:1px solid #2d3e49}.map-inspector-help{display:none}.map-inspector h3{margin-bottom:10px}.map-inspector dl{display:flex;gap:20px;flex-wrap:wrap}.map-inspector dl>div{border:0;gap:10px;padding:0}.map-inspector .inspection-result{font-size:10px}.lesson-workbench .bubble-svg{height:280px}.map-legend{font-size:8px;padding-bottom:13px}.lesson-workbench .exercise-footer{display:block;padding:16px 18px}.lesson-workbench .exercise-feedback{margin-bottom:13px}.lesson-workbench .exercise-footer>.button{width:100%;min-height:40px}.source-grid{grid-template-columns:1fr}.lesson-workbench .source-post{border-right:0;border-bottom:1px solid #314351}.lesson-workbench .source-post:last-child{border-bottom:0}.lesson-workbench .source-post p{min-height:0;margin:16px 0}.source-observations>div{grid-template-columns:1fr;gap:3px}.trade-workspace{grid-template-columns:1fr}.trade-market{border-right:0;border-bottom:1px solid #334854}.lesson-workbench .mini-ticket{padding:18px}.lesson-workbench .reference-scenario>div{display:flex}.lesson-workbench .reference-scenario b{text-align:right}.lesson-workbench .lesson-chart{height:250px}.lesson-workbench .candidate-example{grid-template-columns:28px minmax(0,1fr);gap:10px;padding:15px 13px}.lesson-workbench .candidate-example>span:last-child{grid-column:2;flex-direction:row;gap:10px;align-items:center;text-align:left}.lesson-workbench .candidate-example>span:last-child b{font-size:12px}.lesson-workbench .candidate-example>span:last-child small{font-size:9px}.summary-workspace{padding:20px;grid-template-columns:1fr;gap:15px}.summary-check{width:35px;height:35px}.summary-workspace h3{font-size:16px}.summary-workspace p{font-size:12px}.explorer-table-head{display:none}.lesson-workbench .explorer-field{grid-template-columns:1fr 16px;gap:6px}.lesson-workbench .explorer-field>span{grid-column:1}.lesson-workbench .explorer-field>strong{grid-column:1;font-size:12px}.lesson-workbench .explorer-field>svg{grid-column:2;grid-row:1/3}.lesson-workbench .answer-option{font-size:11px;padding:12px 10px;gap:10px}.lesson-workbench .answer-options>legend{font-size:14px}.answer-radio{display:none}}
@media(max-width:600px){.lesson-workbench .lesson-top{padding:16px;min-height:63px;gap:14px}.lesson-workbench .lesson-progress{grid-template-columns:minmax(0,1fr) 30px;gap:10px}.lesson-workbench .lesson-progress>span{display:none}.lesson-workbench .lesson-progress progress{height:7px}.lesson-board{width:calc(100% - 24px);display:block;border-radius:9px;margin-top:3px}.lesson-outline{display:block;border-right:0;border-bottom:1px solid #303942;padding:19px 17px 0}.lesson-outline-title h1{font-size:21px;line-height:1.35;max-width:100%;text-wrap:initial}.lesson-outline-title>span{font-size:9px;margin-top:9px}.lesson-step-nav{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:4px;margin:17px 0 0}.lesson-step-nav button{padding:10px 2px;border:0;border-radius:0;flex-direction:column;gap:5px;justify-content:center;font-size:9px;background:transparent;min-height:64px;border-bottom:2px solid transparent}.lesson-step-nav button[aria-current=step]{background:transparent;border-color:#b4cc94;color:#deebc7}.step-marker{width:21px;height:21px;font-size:9px}.lesson-step-nav button:not(:disabled):hover{background:#18231f}.lesson-instruction,.lesson-sidebar-note{display:none}.lesson-outline>.lesson-glossary{display:block;margin:10px 0 12px}.workspace-main{padding:21px 17px;min-height:0}.lesson-workbench .exercise-heading{margin-bottom:19px}.lesson-workbench .exercise-heading h2{font-size:21px;line-height:1.35}.lesson-workbench .exercise-heading>p{font-size:13px;line-height:1.85;margin-top:12px}.lesson-workbench .tool-title{font-size:11px;padding:12px}.lesson-workbench .tool-title>span{font-size:9px}.lesson-workbench .example-label{font-size:9px;padding:8px 12px}.lesson-workbench .bubble-svg{height:260px}.map-inspector{padding:15px 12px}.map-inspector h3{font-size:13px;margin-bottom:10px}.map-inspector dl{gap:15px}.map-inspector dt{font-size:9px}.map-inspector dd{font-size:12px}.map-inspector .inspection-result{font-size:10px;line-height:1.8}.map-legend{gap:11px;font-size:8px;padding:0 5px 13px}.lesson-workbench .bubble-controls{padding:11px 12px;gap:6px}.lesson-workbench .chip{font-size:9px;padding:6px 7px;gap:5px}.lesson-workbench .chip>span{font-size:9px}.lesson-workbench .tool-footnote{font-size:9px;padding:10px 12px}.lesson-workbench .inspection-result{font-size:11px;padding:12px;line-height:1.8}.field-detail .inspection-result{padding:12px 12px 12px 10px;font-size:11px;min-height:65px}.field-detail>span{padding:15px 0 0 12px}.lesson-workbench .explorer-field{padding:14px 12px;min-height:71px}.lesson-workbench .explorer-field>span{font-size:10px}.lesson-workbench .explorer-field>strong{font-size:11px;line-height:1.8}.lesson-workbench .answer-options{margin-top:22px}.lesson-workbench .answer-options>legend{font-size:14px;line-height:1.7}.lesson-workbench .answer-option{font-size:11px;line-height:1.8;padding:13px 10px;gap:10px}.lesson-workbench .answer-letter{width:20px;height:20px;font-size:9px}.lesson-workbench .exercise-footer{padding:15px 17px;min-height:0}.lesson-workbench .exercise-feedback{gap:10px;margin-bottom:13px;align-items:start}.lesson-workbench .exercise-feedback p{font-size:10px;line-height:1.8}.lesson-workbench .exercise-feedback svg{width:17px;height:17px}.lesson-workbench .exercise-footer>.button{font-size:12px;min-height:43px;padding:11px 14px}.lesson-bottom-note{width:calc(100% - 30px);margin:13px auto 22px;display:block;font-size:8px}.lesson-bottom-note>span{font-size:9px}.lesson-bottom-note p{text-align:left;margin-top:6px;line-height:1.8}.lesson-workbench .source-post{padding:18px 14px}.lesson-workbench .source-post strong{font-size:11px}.lesson-workbench .source-post p{font-size:13px;line-height:1.85}.source-observations{padding:11px 13px}.lesson-workbench .candidate-example strong{font-size:12px}.lesson-workbench .candidate-example>span:nth-child(2)>span{font-size:10px}.lesson-workbench .reference-scenario{padding:14px}.lesson-workbench .reference-scenario>div{display:block;font-size:10px;margin-top:9px}.lesson-workbench .reference-scenario b{display:block;text-align:left;font-size:11px}.lesson-workbench .lesson-chart{height:245px}.lesson-workbench .mini-ticket{padding:17px 14px}.lesson-workbench .mini-ticket>p{font-size:11px}.lesson-workbench .mini-ticket .inspection-result{font-size:10px;padding:11px}.lesson-workbench .mini-ticket .button{font-size:11px;min-height:41px}.summary-workspace{padding:18px}.summary-workspace h3{font-size:16px}.summary-workspace p{font-size:12px}.summary-workspace a{font-size:11px;line-height:1.5}.summary-workspace small{font-size:9px}.desktop-complete{width:calc(100% - 28px);margin:24px auto 40px;padding:30px 23px}.desktop-complete h1{font-size:28px}.desktop-complete>p{font-size:14px}.desktop-complete .completion-icon{width:49px;height:49px;margin-bottom:21px}.desktop-complete .completion-facts{gap:35px;padding:21px 0}.desktop-complete .completion-facts strong{font-size:22px}.desktop-complete .completion-facts span{font-size:10px}.completion-actions{align-items:start;flex-direction:column;gap:20px}.completion-actions .button{font-size:12px;width:100%;min-height:44px}.completion-actions .quiet-link{font-size:11px}.desktop-complete .save-note{font-size:9px}}
@media(prefers-reduced-motion:reduce){.lesson-workbench *{transition:none!important}}
/* Dated historical evidence, with recorded Pulse observations when a case tape exists. */
.historical-example{border:1px solid #354149;border-radius:10px;overflow:hidden;background:#131b21}
.history-heading{padding:18px 20px 10px;display:flex;gap:18px;align-items:start;justify-content:space-between}
.history-heading h3{font-size:17px;line-height:1.4}.history-heading p{font-size:10px;color:#a5b3be;margin-top:7px}
.history-status{font-size:9px;color:#c3d7b2;white-space:nowrap;padding:5px 8px;background:#24332b;border-radius:4px}
.history-summary{padding:0 20px 17px;font-size:12px;line-height:1.8;color:#b7c2cb;max-width:82ch}
.history-tabs{display:flex;gap:23px;padding:0 20px;border-top:1px solid #2b353e;border-bottom:1px solid #2b353e;background:#172127}
.history-tabs button{padding:13px 0;background:none;font-size:11px;color:#aebac4;border-bottom:2px solid transparent}.history-tabs button[aria-selected=true]{color:#d4e3c4;border-bottom-color:#b1ce8a}
.history-replay-controls{padding:13px 16px;display:flex;justify-content:space-between;align-items:center;gap:15px}
.history-replay-controls>div{display:flex;gap:8px;align-items:center}.history-replay-controls>div:first-child{display:block}
.history-replay-controls strong{display:block;font-size:10px;font-weight:550;color:#d7e3cf;font-variant-numeric:tabular-nums}.history-replay-controls span{font-size:9px;color:#9baab6}.history-replay-controls .control{font-size:10px;padding:7px 9px;display:flex;align-items:center;gap:6px;min-height:32px}
.history-coverage{font-size:10px;color:#ddd3b6;background:#322f25;padding:9px 16px;border-top:1px solid #494434;border-bottom:1px solid #494434}
.history-pulse-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr))}.history-token{padding:15px 12px;border-right:1px solid #2f3b43;min-width:0}.history-token:last-child{border-right:0}.history-token.selected{background:#223029}
.history-token-heading{display:flex;align-items:center;gap:9px}.history-token-heading img,.history-image-unavailable{width:35px;height:35px;object-fit:cover;border-radius:6px;flex-shrink:0}.history-image-unavailable{display:grid;place-items:center;background:#26333b;color:#b0bdc7}
.history-token h4{margin:0;font-size:13px;font-weight:650;line-height:1.3;overflow-wrap:anywhere}.history-token-heading>div>span{font-size:9px;color:#a2b1bd;display:block;margin-top:4px}
.history-token-value{margin:14px 0 10px;display:flex;flex-direction:column;gap:2px}.history-token-value span{font-size:9px;color:#a3b1bc}.history-token-value strong{font-size:17px;font-weight:600;color:#cfdfc0;font-variant-numeric:tabular-nums}
.history-token>.tv-chart-host{width:100%;height:175px;display:block}.history-token-observed{display:flex;flex-direction:column;gap:2px;font-size:9px;color:#a3b1bd;line-height:1.7;margin:10px 0 12px}.history-token .button{font-size:10px;width:100%;min-height:34px;padding:7px 10px;border-bottom-width:1px}
.history-pulse-grid.has-selection .history-token>.tv-chart-host,.history-pulse-grid.has-selection .history-token-observed{display:none!important}.history-pulse-grid.has-selection .history-token{padding:12px}.history-pulse-grid.has-selection .history-token-value{margin:10px 0}
.history-token-inspector{padding:16px;border-top:1px solid #3b4d42;background:#17231e}.history-token-inspector>div:first-child{display:flex;align-items:center;gap:9px}.history-token-inspector>div>img{width:32px;height:32px;object-fit:cover;border-radius:5px}.history-token-inspector h4{font-size:15px;margin:0}.history-token-inspector .icon-button{margin-left:auto}
#history-selected-chart{display:block;width:100%;height:420px;margin:15px 0}.history-token-inspector dl{font-size:10px;line-height:1.8;margin:14px 0}.history-token-inspector dl>div{display:grid;grid-template-columns:110px minmax(0,1fr);gap:10px;margin-top:7px}.history-token-inspector dt{color:#a7b6b1}.history-token-inspector dd{margin:0;overflow-wrap:anywhere;color:#dde6e0}.history-token-inspector>a{display:inline-flex;gap:7px;align-items:center;font-size:10px;color:#c9dbb8}.history-token-inspector>p{font-size:9px;line-height:1.8;color:#aab8b0;margin-top:9px}
.history-replay-footer{border-top:1px solid #303b43;padding:12px 16px;display:flex;justify-content:space-between;gap:18px;align-items:start;font-size:10px;color:#b9c6cf;line-height:1.8}.history-replay-footer a{display:flex;align-items:center;gap:7px;white-space:nowrap;color:#c5d9ae}.history-replay-basis{padding:0 16px 13px;font-size:9px;line-height:1.8;color:#9eafb9}
.history-replay-error{padding:22px}.history-replay-error>p{font-size:12px;margin:10px 0 18px}.history-loading{padding:30px 20px;font-size:12px;color:#a8b8c0}
.historical-evidence-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr))}.historical-evidence{padding:20px;border-bottom:1px solid #303c44;min-width:0}.historical-evidence:nth-child(odd){border-right:1px solid #303c44}.source-timing{display:flex;flex-wrap:wrap;gap:8px;justify-content:space-between;color:#b9caaf;font-size:9px;margin-bottom:13px}.source-timing time{color:#a7b6c0;font-variant-numeric:tabular-nums}.historical-evidence h4{font-size:14px;line-height:1.5;margin:0 0 12px;letter-spacing:-.015em}.historical-evidence>p{font-size:12px;line-height:1.9;color:#c0cbd3}.historical-evidence>a{display:inline-flex;align-items:center;gap:7px;font-size:10px;color:#c5d9b0;margin-top:17px}.historical-evidence blockquote{font-size:13px;margin:15px 0;line-height:1.8;color:#dbe4d5}
.historical-facts button{display:grid;grid-template-columns:minmax(120px,.7fr) minmax(0,1.3fr) 16px;gap:18px;align-items:start;text-align:left;width:100%;padding:16px 20px;background:none;border-bottom:1px solid #2e3a42;color:#d0dae1;font-size:11px;line-height:1.8}.historical-facts button>span{color:#a9b8c2}.historical-facts button>strong{font-weight:550;overflow-wrap:anywhere}.historical-facts button:hover,.historical-facts button.selected{background:#24332c}.historical-facts button>svg{margin-top:4px;color:#b9cda8}
.historical-fact-explanation{padding:18px 20px;background:#1e2c34;color:#bdcbd5;font-size:12px;line-height:1.8}.historical-fact-explanation>strong{color:#e0e8dc;font-size:13px}.historical-fact-explanation p{margin-top:8px}.historical-fact-explanation>div{display:flex;gap:15px;flex-wrap:wrap;margin-top:12px}.historical-fact-explanation a{display:inline-flex;align-items:center;gap:6px;font-size:10px;color:#c9dbb7}
.historical-task{padding:17px 20px;border-top:1px solid #35423b;background:#1e2b24}.historical-task>strong{font-size:11px;color:#cce0b6}.historical-task>p{margin-top:5px;font-size:12px;line-height:1.8;color:#d0dcc9}.historical-limits{font-size:10px;color:#b7c5cc;padding:14px 20px;line-height:1.9}.historical-limits summary{cursor:pointer}.historical-limits ul{padding-left:18px;margin-bottom:0}
@media(max-width:1100px) and (min-width:801px){.history-token{padding:12px 9px}.history-token-heading{gap:6px}.history-token-heading img{width:28px;height:28px}.history-token h4{font-size:11px}.history-token-heading>div>span{font-size:8px}.history-token>.tv-chart-host{height:155px}.history-token-value strong{font-size:15px}}
@media(max-width:600px){.history-heading{padding:16px 13px 10px;gap:10px}.history-heading h3{font-size:14px}.history-heading p{font-size:9px}.history-status{font-size:8px;white-space:normal;max-width:77px}.history-summary{padding:0 13px 14px;font-size:11px}.history-tabs{padding:0 13px;gap:19px}.history-tabs button{font-size:10px}.history-replay-controls{padding:13px;display:block}.history-replay-controls>div:last-child{margin-top:10px}.history-pulse-grid{display:flex;overflow-x:auto;scroll-snap-type:x proximity}.history-token{flex:0 0 88%;scroll-snap-align:start;border-right:1px solid #2f3b43}.history-token>.tv-chart-host{height:190px}.history-token h4{font-size:14px}.history-token-heading>div>span{font-size:10px}.history-token-value strong{font-size:18px}.history-pulse-grid.has-selection .history-token{flex-basis:75%}.history-replay-footer{display:block}.history-replay-footer a{margin-top:10px}.historical-evidence-list{grid-template-columns:1fr}.historical-evidence{padding:17px 14px;border-right:0!important}.historical-facts button{grid-template-columns:95px 1fr 14px;gap:10px;padding:14px 12px;font-size:10px}.historical-fact-explanation{padding:16px 13px;font-size:11px}.historical-task{padding:15px 13px}.historical-task>p{font-size:11px}.historical-limits{padding:13px}.history-token-inspector dl>div{grid-template-columns:80px 1fr;gap:9px}}
.history-original-post{margin:0;border-bottom:1px solid #354049;background:#162026;padding:12px 16px;font-size:10px;color:#c7d4de;line-height:1.8}.history-original-post>summary{cursor:pointer;color:#d4dfcc}.history-original-post article{padding:14px 0 5px}.history-original-post article>div{display:flex;gap:18px;justify-content:space-between}.history-original-post strong{font-size:12px;color:#e1e9de}.history-original-post time{font-size:9px;color:#a8b9c4}.history-original-post blockquote{margin:12px 0;font-size:14px;line-height:1.8;color:#e1e8ec}.history-original-post a{display:inline-flex;gap:6px;align-items:center;color:#c4d8af}.history-original-post small{display:block;color:#a1b3be;margin-top:9px;font-size:9px}.history-record-proof{font-size:10px;color:#aebdc8;margin-top:14px;line-height:1.8}.history-record-proof summary{cursor:pointer;color:#c5d6b7}.history-record-proof p{font-size:10px;margin-top:10px}.history-record-proof>div{margin-top:10px}.history-record-proof span,.history-record-proof code{display:block;overflow-wrap:anywhere;font-size:9px}.history-record-proof pre{font-size:9px;white-space:pre-wrap;overflow-wrap:anywhere}
.history-first-lesson .history-heading{padding:13px 16px}.history-first-lesson .history-heading h3{font-size:14px}.history-first-lesson .history-heading p{margin-top:5px;font-size:9px}.history-first-lesson .history-token>.tv-chart-host{height:205px}.history-first-lesson .history-token-observed>span:last-child{display:none}.history-first-lesson .history-replay-controls{padding-top:10px;padding-bottom:10px}.history-first-lesson .history-token{padding-top:12px;padding-bottom:12px}.history-first-lesson .historical-task{padding-top:12px;padding-bottom:12px}
.history-trading-workspace{display:grid;grid-template-columns:minmax(0,1fr) 245px;border:1px solid #35463c;margin-top:14px}.history-trading-workspace #history-selected-chart{height:420px;margin:0;min-width:0}.history-order-ticket{padding:15px;background:#1a2a23;border-left:1px solid #35463c}.history-order-balance{display:flex;justify-content:space-between;gap:12px;align-items:center;font-size:10px;margin-bottom:16px;color:#bdcbbf}.history-order-balance strong{font-size:14px;color:#e5eedf}.history-order-sides{display:flex;gap:6px;margin-bottom:14px}.history-order-sides button{width:50%;padding:8px;background:#263a30;color:#b8c8ba;border-radius:5px;font-size:11px}.history-order-sides button[aria-pressed=true]{background:#b1ce8a;color:#172414}.history-order-ticket label{font-size:10px;color:#c4d1c6;display:block;margin-bottom:7px}.history-order-ticket input{width:100%;font-size:14px;padding:10px;background:#122019;color:#e4ecdf;border:1px solid #596b5d;border-radius:5px}.history-order-presets{display:flex;gap:5px;margin-top:8px}.history-order-presets button{flex:1;font-size:10px;background:#2a3d32;color:#c3d0c2;padding:7px;border-radius:4px}.history-order-ticket form>p{font-size:9px;line-height:1.8;color:#b0c1b2;margin:12px 0}.history-order-ticket .button{font-size:11px;min-height:40px;padding:10px}.history-order-reason{font-size:9px;line-height:1.8;color:#b8cbb9;margin:11px 0}.history-order-position{display:flex;flex-direction:column;gap:5px;border-top:1px solid #3b4e40;padding-top:12px;font-size:10px;color:#b4c5b7}.history-order-position strong{font-size:12px;font-weight:550;color:#d7e4d2}.history-order-ticket>small{display:block;font-size:9px;line-height:1.8;color:#a9bcac;margin-top:14px}
@media(max-width:1100px){.history-trading-workspace{grid-template-columns:minmax(0,1fr) 215px}.history-order-ticket{padding:12px}}@media(max-width:800px){.history-trading-workspace{grid-template-columns:1fr}.history-order-ticket{border-left:0;border-top:1px solid #35463c}.history-trading-workspace #history-selected-chart{height:390px}}

/* v10 lessons: a single task stage with quiet progress above it. */
.lesson-workbench .lesson-top{max-width:980px;min-height:68px;padding:16px 24px}.lesson-workbench .lesson-progress{max-width:520px}.lesson-workbench .lesson-save-state{font-size:9px}
.lesson-workbench .lesson-board{display:block;width:calc(100% - 48px);max-width:900px;margin:24px auto 0;border:0;border-radius:0;overflow:visible;background:transparent}
.lesson-workbench .lesson-outline{display:block;padding:0 0 22px;background:transparent;border:0}.lesson-workbench .lesson-outline-title{display:flex;align-items:end;justify-content:space-between;gap:24px}.lesson-workbench .lesson-outline-title h1{font-size:28px;line-height:1.2}.lesson-workbench .lesson-outline-title>span{margin:0 0 3px;white-space:nowrap}
.lesson-workbench .lesson-step-nav{display:grid;grid-template-columns:repeat(4,1fr);gap:7px;margin:24px 0 0}.lesson-workbench .lesson-step-nav button{min-height:44px;padding:8px 10px;justify-content:center;border:1px solid #2d3740;background:#151b21;text-align:center}.lesson-workbench .lesson-step-nav button[aria-current=step]{background:#202d23;border-color:#53684b}.lesson-workbench .lesson-step-nav button:disabled{background:#11161a}.lesson-workbench .lesson-step-nav .current-step-label{display:none}.lesson-workbench .lesson-instruction,.lesson-workbench .lesson-sidebar-note{display:none}.lesson-workbench .lesson-outline>.lesson-glossary{margin:13px 0 0}.lesson-workbench .lesson-outline>.lesson-glossary summary{max-width:180px;border:0;padding:7px 0}
.lesson-workbench .lesson-workspace{border:1px solid #313b44;border-radius:12px;overflow:hidden;background:#151c23}.lesson-workbench .workspace-main{padding:34px 36px 38px;min-height:0}.lesson-workbench .exercise-heading{max-width:760px;margin-bottom:25px}.lesson-workbench .exercise-heading h2{font-size:25px}.lesson-workbench .exercise-heading>p{font-size:14px;line-height:1.75;max-width:70ch}.lesson-workbench .exercise-footer{padding:18px 26px;background:#12191f}.lesson-bottom-note{max-width:900px;width:calc(100% - 48px)}

/* First lesson: one principle, then immediate entry into the historical run. */
.pulse-primer{background:#0e1013;min-height:100svh}.primer-top{max-width:960px;margin:auto;min-height:70px;padding:15px 24px;display:flex;align-items:center;gap:34px;border-bottom:1px solid #292f36}.primer-top .lesson-exit{display:flex;align-items:center;gap:9px;color:#aeb9c3;text-decoration:none;font-size:12px;white-space:nowrap}.primer-progress{display:grid;grid-template-columns:auto minmax(120px,1fr) auto;align-items:center;gap:15px;flex:1}.primer-progress span,.primer-progress b{font-size:10px;color:#9ba8b4;font-weight:500;white-space:nowrap}.primer-progress progress{width:100%;height:7px;border:0;border-radius:7px;overflow:hidden;background:#29313a}.primer-progress progress::-webkit-progress-bar{background:#29313a}.primer-progress progress::-webkit-progress-value{background:#b1ce8a}.primer-progress progress::-moz-progress-bar{background:#b1ce8a}
.primer-shell{width:calc(100% - 48px);max-width:820px;margin:56px auto 70px}.primer-copy{text-align:center;max-width:650px;margin:auto}.primer-copy>span{display:inline-flex;align-items:center;gap:9px;color:#b8ce9e;font-size:11px}.primer-copy h1{font-size:clamp(38px,5vw,54px);letter-spacing:-.035em;line-height:1.08;margin-top:18px}.primer-copy p{font-size:16px;line-height:1.75;color:#b6c0ca;max-width:580px;margin:20px auto 0}
.primer-demo{display:grid;grid-template-columns:190px minmax(0,1fr);margin-top:46px;border:1px solid #344039;border-radius:12px;overflow:hidden;background:#141b20}.primer-clock{display:flex;flex-direction:column;justify-content:center;padding:28px;background:#202e25;border-right:1px solid #3b4b3f}.primer-clock span,.primer-clock small{font-size:10px;color:#a8b9a7}.primer-clock strong{font-size:20px;font-weight:620;color:#e0ead7;margin:7px 0 3px;font-variant-numeric:tabular-nums}.primer-launches>div{display:grid;grid-template-columns:63px minmax(0,1fr) auto;gap:14px;align-items:center;padding:14px 17px;border-bottom:1px solid #2e3941}.primer-launches>div:last-child{border-bottom:0}.primer-token{font-size:10px;color:#c8d8bc}.primer-launches strong{display:block;font-size:12px;font-weight:560;overflow-wrap:anywhere}.primer-launches small{display:block;font-size:9px;color:#8f9fab;margin-top:2px}.primer-launches b{font-size:10px;color:#aebcae;font-weight:500;font-variant-numeric:tabular-nums}
.primer-action{display:flex;justify-content:space-between;align-items:center;gap:30px;margin-top:28px;padding:24px 0;border-top:1px solid #2a3239;border-bottom:1px solid #2a3239}.primer-action h2{font-size:18px}.primer-action p{font-size:11px;color:#9eacb8;margin-top:7px}.primer-action .button{flex-shrink:0;min-width:210px}.primer-limit{text-align:center;color:#8795a1;font-size:9px;margin-top:18px}
@media(max-width:700px){.lesson-workbench .lesson-top{padding:14px 16px}.lesson-workbench .lesson-save-state{display:none}.lesson-workbench .lesson-board{width:calc(100% - 28px);margin-top:18px}.lesson-workbench .lesson-outline{padding:0 0 16px}.lesson-workbench .lesson-outline-title{display:block}.lesson-workbench .lesson-outline-title h1{font-size:23px}.lesson-workbench .lesson-outline-title>span{margin-top:8px}.lesson-workbench .lesson-step-nav{margin-top:18px;gap:4px}.lesson-workbench .lesson-step-nav button{border-width:0 0 2px;min-height:58px;padding:8px 3px;background:transparent}.lesson-workbench .lesson-step-nav button[aria-current=step]{background:transparent}.lesson-workbench .lesson-workspace{border-radius:9px}.lesson-workbench .workspace-main{padding:23px 17px}.lesson-bottom-note{width:calc(100% - 30px)}.primer-top{padding:14px 16px;gap:18px}.primer-progress{grid-template-columns:minmax(100px,1fr) auto}.primer-progress span{display:none}.primer-shell{width:calc(100% - 30px);margin:38px auto 50px}.primer-copy h1{font-size:38px}.primer-copy p{font-size:14px}.primer-demo{grid-template-columns:1fr;margin-top:34px}.primer-clock{border-right:0;border-bottom:1px solid #3b4b3f;padding:18px}.primer-clock strong{font-size:18px}.primer-launches>div{grid-template-columns:58px minmax(0,1fr);padding:13px}.primer-launches b{grid-column:2}.primer-action{display:block;margin-top:24px}.primer-action .button{width:100%;margin-top:20px}.primer-limit{line-height:1.8}}