:root{--forest:#214b3e;--forest-dark:#153e32;--sage:#edf1e6;--cream:#faf8f1;--paper:#fffefa;--ink:#253c33;--muted:#69776e;--line:#e1e5d9;--orange:#c47648;--gold:#e6bb70;--red:#a74139;--shadow:0 7px 30px #273d2c08;font-family:ui-rounded,'Trebuchet MS',system-ui,-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;color:var(--ink);background:var(--cream);font-synthesis:none;font-size:16px;line-height:1.55}*{box-sizing:border-box}body{margin:0}button,input,select,textarea{font:inherit}button,a,input,textarea,select{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.52}button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid #d19046;outline-offset:4px}a{color:var(--forest)}h1,h2,h3,h4,p{margin:0}h1,h2,h3,h4{line-height:1.22;letter-spacing:-.025em}h1{font-size:clamp(1.8rem,3vw,2.5rem);font-weight:750}h2{font-size:1.4rem}h3{font-size:1.08rem}h4{font-size:1.05rem}img{display:block;max-width:100%}button{color:inherit}input,select,textarea{min-width:0;background:var(--paper);border:1px solid #ccd6c9;border-radius:11px;padding:13px 14px;color:var(--ink)}input::placeholder,textarea::placeholder{color:#929a91}textarea{resize:vertical;width:100%;line-height:1.55}input[type=checkbox],input[type=radio]{accent-color:var(--forest);width:21px;height:21px;flex-shrink:0}button,select,input[type=checkbox],input[type=radio]{touch-action:manipulation}fieldset{border:0;padding:0;margin:0;min-width:0}legend{font-size:1.2rem;font-weight:700;margin-bottom:20px}summary{cursor:pointer}button{transition:background .15s,border-color .15s,transform .15s}button:active:not(:disabled){transform:translateY(1px)}[hidden]{display:none!important}.muted{color:var(--muted)}.small{font-size:.83rem}.eyebrow{display:block;font-size:.69rem;font-weight:800;letter-spacing:.14em;color:var(--muted)}.wide{width:100%}.button{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid transparent;border-radius:10px;padding:11px 18px;text-decoration:none;font-size:.9rem;font-weight:750;line-height:1.45;min-height:45px}.primary{color:#fff;background:var(--forest);box-shadow:0 4px 9px #214b3e15}.primary:hover:not(:disabled){background:var(--forest-dark)}.secondary{background:#edf1e7;border-color:#e1e7d9;color:var(--forest)}.secondary:hover:not(:disabled){background:#e0e8d6}.quiet{background:var(--paper);border-color:var(--line);color:var(--muted)}.quiet:hover:not(:disabled){background:var(--sage)}.text-button,.back-link{padding:5px 0;background:none;border:0;text-decoration:none;color:var(--forest);font-size:.82rem;font-weight:650}.text-button:hover,.back-link:hover{text-decoration:underline;text-underline-offset:4px}.badge{display:inline-flex;align-items:center;gap:5px;border-radius:7px;background:#f0eee5;color:#6b705d;padding:5px 9px;font-size:.65rem;font-weight:800;letter-spacing:.035em;line-height:1.35}.badge.green,.badge.passed{background:#e6eddb;color:#3c5c3c}.badge.submitted{background:#eaf0f7;color:#3e5f89}.badge.revision,.badge.level-2{background:#fff0db;color:#925f26}.badge.level-1{background:#eaf0e2;color:#557348}.badge.level-3{background:#eee9f3;color:#776187}.badge.in-progress{background:#fff3d7;color:#886520}.card{border:1px solid var(--line);border-radius:17px;background:var(--paper);box-shadow:var(--shadow)}.notice{background:#f2f0e4;border:1px solid #e4e1cd;border-radius:12px;padding:16px;font-size:.86rem}.notice p{margin-top:7px}.notice.error{background:#fff1ea;border-color:#efcfc2;color:#864337}.notice.success{background:#edf4e8;border-color:#d1e2c7;color:#3e643e}.notice.try-again{background:#fff5df;border-color:#edddb5;color:#7e652d}.empty-state{display:grid;justify-items:center;text-align:center;align-content:center;gap:13px;padding:45px 25px;color:var(--muted)}.empty-state h3{color:var(--ink)}.empty-state p{max-width:350px;font-size:.9rem}.empty-icon{width:50px;height:50px;display:grid;place-items:center;border-radius:50%;background:var(--sage);color:#8c9a66;font-size:1.8rem}.skip-link{position:fixed;top:-100px;left:20px;z-index:100;padding:10px;background:var(--forest);color:#fff}.skip-link:focus{top:10px}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.boot-screen{min-height:100dvh;display:grid;justify-items:center;align-content:center;gap:22px;padding:30px}.boot-screen h1{font-size:1.7rem}.toast{position:fixed;z-index:1000;bottom:28px;left:50%;transform:translateX(-50%);width:max-content;max-width:min(620px,calc(100vw - 32px));padding:14px 22px;border:1px solid #426554;border-radius:13px;background:var(--forest);color:#fff;box-shadow:0 10px 35px #173d3528;font-size:.9rem}.brand{display:inline-flex;align-items:center;gap:10px;background:transparent;border:0;text-decoration:none;color:var(--forest);font-weight:850;font-size:1.4rem;letter-spacing:-.04em;padding:0;white-space:nowrap}.brand-light{font-size:1.06rem;font-weight:550;margin-left:6px;letter-spacing:-.02em}.topbar{background:#fffefaeb;border-bottom:1px solid var(--line)}.topbar-inner{max-width:1440px;padding:18px 48px;margin:auto;display:flex;align-items:center;gap:50px;min-height:82px}.main-nav{display:flex;align-self:stretch;gap:26px}.nav-link{background:none;border:0;padding:0 2px;color:var(--muted);font-size:.85rem;position:relative}.nav-link.active{font-weight:750;color:var(--forest)}.nav-link.active:after{position:absolute;content:'';height:3px;background:var(--forest);border-radius:2px;bottom:-18px;left:0;right:0}.account{margin-left:auto;display:flex;align-items:center;gap:11px}.avatar{width:37px;height:37px;border-radius:50%;background:#f2e2c5;color:#8b673c;display:inline-grid;place-items:center;font-weight:800;flex-shrink:0}.account-name{font-size:.8rem;font-weight:750;max-width:200px;overflow-wrap:anywhere}.account-name small{display:block;font-size:.67rem;font-weight:450;color:var(--muted)}.account>.text-button{margin-left:12px;color:var(--muted)}.page{max-width:1280px;margin:auto;padding:36px 40px 52px}.page-heading{display:flex;justify-content:space-between;align-items:center;gap:20px;margin-bottom:28px}.page-heading .eyebrow{margin-bottom:10px}.wave{color:#bd9754;font-size:1.7rem;vertical-align:middle;margin-left:5px}.class-badge{background:#e9eddf;border:1px solid #dce4d2;padding:9px 13px;letter-spacing:0;font-size:.75rem}.footer{max-width:1280px;padding:22px 40px;margin:0 auto;display:flex;justify-content:space-between;gap:20px;color:#8a9286;font-size:.68rem;border-top:1px solid var(--line)}
/* A welcoming front door. */
.auth-page{display:grid;grid-template-columns:1fr 1fr;min-height:100dvh}.auth-story{background:#edf0e3;padding:44px max(38px,calc((100vw - 1280px)/2));padding-right:50px;position:relative;overflow:hidden;display:flex;align-items:flex-start;flex-direction:column}.auth-story:before{content:'';position:absolute;width:420px;height:420px;border:1px solid #dbe0cb;border-radius:50%;bottom:35px;right:-120px;pointer-events:none}.auth-story>.brand{margin-bottom:70px}.auth-story>.eyebrow{margin-bottom:22px}.auth-story h1{font-size:clamp(2.8rem,4vw,4.25rem);line-height:1.13;letter-spacing:-.055em;z-index:1}.auth-story>p{color:#72806c;font-size:.96rem;max-width:370px;margin-top:23px;z-index:1}.auth-fox{align-self:flex-end;width:330px;height:auto;margin-top:-18px;margin-right:-20px;position:relative}.story-bottom{display:flex;flex-wrap:wrap;gap:12px;align-items:center;position:relative;margin-top:auto}.story-bottom .badge{background:#e1e7d2;font-size:.67rem;padding:8px 10px}.story-bottom>span:last-child{font-size:.65rem;color:#7d8773}.auth-panel{display:flex;align-items:center;justify-content:center;flex-direction:column;padding:70px 48px 28px;background:var(--cream)}.auth-card{width:100%;max-width:380px;margin:auto}.auth-card>.eyebrow{margin-bottom:15px;font-size:.63rem}.auth-card h2{font-size:2rem;letter-spacing:-.04em;margin-bottom:13px}.auth-card>.muted{font-size:.88rem;max-width:340px}.auth-tabs{display:flex;padding:4px;border-radius:11px;background:#eeeee5;margin:28px 0;gap:5px}.auth-tabs button{flex:1;border:0;background:none;padding:9px;font-size:.84rem;font-weight:650;border-radius:8px;color:#7c8476}.auth-tabs button.selected{background:var(--paper);color:var(--forest);box-shadow:0 2px 5px #343d2510}.auth-form{display:grid;gap:18px}.field{display:flex;flex-direction:column;gap:7px;font-size:.78rem;font-weight:700}.field input{font-size:.88rem;font-weight:450;width:100%}.form-note{font-size:.68rem;line-height:1.65;color:var(--muted)}.form-feedback:empty{display:none}.auth-footer{text-align:center;font-size:.7rem;color:#8f9587;margin-top:40px}
/* Course catalog and the currently selected lesson. */
.course-hero{display:flex;justify-content:space-between;gap:24px;min-height:290px;padding:34px 40px 26px;border-radius:21px;background:#e9eddc;position:relative;overflow:hidden;margin-bottom:38px}.course-hero:after{content:'';border:1px solid #dbe0c6;border-radius:50%;position:absolute;width:410px;height:410px;right:-14px;top:-100px;pointer-events:none}.hero-copy{position:relative;z-index:1;max-width:560px}.hero-copy .eyebrow{font-size:.63rem;margin-bottom:14px;color:#7b856c}.hero-copy h2{font-size:2.45rem;line-height:1.1;letter-spacing:-.045em}.hero-copy h2 em{font-family:Georgia,serif;font-weight:450;color:#68805d;letter-spacing:-.04em}.hero-copy>p{font-size:.84rem;color:#74806b;max-width:400px;margin-top:18px}.hero-facts{display:flex;flex-wrap:wrap;gap:22px;margin-top:24px;font-size:.67rem;color:#6a785e}.hero-facts strong{color:var(--forest);font-size:.9rem;margin-right:4px}.hero-art{width:340px;flex-shrink:0;align-self:center;position:relative;z-index:1;margin-top:-13px;margin-bottom:-30px}.course-layout{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:32px;align-items:start}.section-heading{display:flex;align-items:center;justify-content:space-between;gap:15px;margin-bottom:19px}.section-heading h2{font-size:1.35rem}.section-heading>.muted{font-size:.72rem}.module-filters{display:flex;gap:7px;flex-wrap:wrap;margin:22px 0 28px}.filter-pill{border:1px solid var(--line);background:transparent;border-radius:30px;padding:7px 13px;font-size:.68rem;color:var(--muted);text-align:left}.filter-pill.selected{background:var(--forest);border-color:var(--forest);color:#fff}.filter-pill:hover:not(.selected){background:var(--sage)}.module-section{margin-bottom:25px}.module-title{display:flex;align-items:center;gap:11px;margin:0 0 12px}.module-title h3{font-size:.88rem;line-height:1.45}.module-number{font-size:.65rem;font-weight:850;color:#879273;border:1px solid #dbe0ce;border-radius:6px;padding:3px 6px;background:#f1f2e8}.lesson-list{display:grid;gap:9px}.lesson-card{display:flex;align-items:center;gap:14px;width:100%;text-align:left;border:1px solid var(--line);border-radius:12px;background:var(--paper);padding:14px 16px;min-height:78px}.lesson-card:hover{border-color:#a7b99e;background:#fffef7}.lesson-card.selected{border-color:#7e9c73;background:#f0f3e7;box-shadow:0 0 0 1px #7e9c7310}.lesson-number{height:39px;min-width:39px;display:grid;place-items:center;border-radius:11px;background:#f0f0e7;color:#829173;font-size:.83rem;font-weight:750}.selected .lesson-number{background:var(--forest);color:#fff}.lesson-number.complete{background:#e0ebd2;color:#476b35}.lesson-card-copy{display:flex;flex-direction:column;gap:5px;flex:1;min-width:0}.lesson-card strong{font-size:.83rem;line-height:1.4;font-weight:700;letter-spacing:-.01em}.lesson-card small{font-size:.64rem;color:var(--muted)}.lesson-indicator{font-size:1.05rem;color:#4e7254;flex-shrink:0}.lesson-indicator.locked{color:#a0a38d}.catalog-legend{display:flex;flex-wrap:wrap;gap:14px;font-size:.61rem;color:#909680;margin-top:28px}.lesson-detail{border:1px solid var(--line);border-radius:17px;padding:23px;background:var(--paper);box-shadow:var(--shadow);position:sticky;top:22px;scroll-margin-top:20px}.detail-topline{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:17px}.detail-topline .small{font-size:.65rem}.lesson-detail h2{font-size:1.3rem;line-height:1.35;margin-bottom:12px}.lesson-summary{font-size:.81rem;color:#7b826f;line-height:1.65}.objectives{background:#f7f7ed;border-radius:9px;padding:13px 15px;margin-top:19px}.objectives h3{font-size:.74rem}.objectives ul{padding-left:17px;margin-bottom:0;font-size:.71rem;color:#78816b}.objectives li{padding-left:2px;margin:7px 0}.lesson-detail .notice{margin-top:18px;font-size:.74rem;padding:13px}.task-list{margin-top:26px}.task-list .compact{gap:6px;align-items:flex-start;flex-direction:column}.task-list .compact h3{font-size:.9rem}.task-list .compact .small{font-size:.64rem}.task-card{padding:16px 0;border-top:1px solid var(--line);display:flex;align-items:flex-start;flex-direction:column;gap:11px}.task-meta{display:flex;justify-content:space-between;align-items:center;gap:8px;width:100%}.task-meta .small{font-size:.6rem}.task-meta .badge{font-size:.57rem}.task-card h4{font-size:.88rem;line-height:1.4}.task-card .button{font-size:.74rem;padding:9px;min-height:37px}.task-locked h4{color:#929783}.task-locked .task-meta{opacity:.72}.task-card .small{font-size:.68rem}.task-feedback{font-size:.72rem;color:#956532}.detail-footnote{font-size:.63rem;color:#8c937f;line-height:1.6;padding-top:13px;border-top:1px solid var(--line)}
/* Larger tasks keep the instructions beside the working surface. */
.task-page{padding-top:25px}.workspace-page{padding:24px 28px 30px;margin:auto;max-width:1800px}.workspace-heading{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:24px}.workspace-heading h1{font-size:1.65rem;margin:9px 0 8px}.task-heading-meta{display:flex;gap:7px;flex-shrink:0}.instructions{padding:25px}.instructions>.eyebrow{margin-bottom:14px}.brief{font-size:1.02rem;line-height:1.7;color:#344e3d}.instructions section{margin-top:26px}.instructions h2{font-size:.93rem;margin-bottom:12px}.steps,.criteria{margin:0;padding-left:23px;font-size:.84rem;color:#68765e}.steps li,.criteria li{padding-left:4px;margin-bottom:13px;line-height:1.65}.steps li::marker{color:#a57940;font-weight:750}.criteria{list-style-type:'✓  ';padding-left:20px}.criteria li::marker{color:#79905d}.hints{padding:14px;margin-top:25px;border-radius:9px;background:#f3efdd;border:1px solid #e9e1c5;font-size:.8rem;color:#8c7444}.hints summary{font-weight:700;list-style:none}.hints summary:after{content:'＋';float:right}.hints[open] summary:after{content:'−'}.hints ol{padding-left:18px;font-size:.8rem;line-height:1.65;margin:13px 0 0}.hints li{margin-bottom:8px}.puzzle-layout{display:grid;grid-template-columns:340px minmax(0,1fr);gap:28px;align-items:start}.puzzle-layout>.instructions{padding:25px;border-radius:16px;border:1px solid var(--line);background:var(--paper)}.puzzle-card{padding:28px;background:var(--paper);border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow)}.puzzle-card-heading{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:30px}.puzzle-play{min-height:250px}.puzzle-play>.muted{font-size:.86rem;margin-bottom:22px}.choice-list{display:grid;gap:12px}.choice-option{display:flex;align-items:center;gap:14px;border:1px solid var(--line);border-radius:12px;min-height:74px;padding:14px 17px;font-size:1rem;cursor:pointer}.choice-option:hover{background:#f6f8ed;border-color:#bac8a9}.choice-option:has(input:checked){background:#edf2e3;border-color:#7b9a67}.choice-option input{width:18px;height:18px}.option-letter{height:29px;min-width:29px;border-radius:8px;background:#f0f0e6;color:#899572;display:grid;place-items:center;font-size:.8rem;font-weight:750}.puzzle-submit{display:flex;justify-content:flex-end;padding-top:27px;margin-top:24px;border-top:1px solid var(--line)}.answer-feedback:not(:empty){margin-top:22px}.answer-feedback .button{margin-top:14px}.order-list{list-style:none;margin:0;padding:0;display:grid;gap:12px}.order-list li{display:flex;align-items:center;gap:15px;border:1px solid var(--line);border-radius:11px;background:#fafbf3;padding:15px}.order-number{background:#e6ebd8;color:#607b4e;width:31px;height:31px;border-radius:8px;display:grid;place-items:center;font-size:.8rem;font-weight:800;flex-shrink:0}.order-text{flex:1;font-size:.95rem}.order-arrows{display:flex;gap:5px}.icon-button{min-width:35px;height:36px;border:1px solid var(--line);border-radius:7px;background:var(--paper);font-size:1.2rem}.puzzle-grid{display:grid;grid-template-columns:repeat(var(--columns),1fr);background:#dfe6d4;border:3px solid #dfe6d4;border-radius:12px;overflow:hidden;gap:3px;max-width:390px;margin:0 auto 24px;aspect-ratio:1}.grid-cell{background:#f7f9ee;display:grid;place-items:center;font-size:1.4rem;color:#b4c3a2}.grid-cell.path{background:#edf0cd}.grid-cell.current{color:var(--forest);background:#d9e4ad;font-size:1.75rem}.grid-cell.wall{background:#718269;color:#dce3d0;font-size:1.7rem}.grid-cell.goal{color:#c59138;background:#faf0c5}.route{text-align:center;min-height:78px}.route-chips{display:flex;flex-wrap:wrap;gap:5px;justify-content:center;margin-top:10px}.route-chip{background:#edf0e1;color:#617c4c;padding:2px 9px;border-radius:6px;font-weight:800}.route-warning{color:#a46940;margin-top:7px}.direction-controls{display:grid;grid-template-columns:repeat(3,49px);grid-template-rows:49px 49px;gap:6px;justify-content:center;margin-top:15px}.direction-button{border:1px solid #cbd6bd;border-radius:10px;background:#eff3e5;color:var(--forest);font-size:1.5rem}.direction-button:hover{background:#dce7c9}.direction-button.up{grid-column:2}.direction-button.left{grid-column:1;grid-row:2}.direction-button.down{grid-column:2;grid-row:2}.direction-button.right{grid-column:3;grid-row:2}.route-actions{display:flex;justify-content:center;gap:22px;margin-top:17px}.route-actions .text-button{font-size:.72rem}.scratch-layout{display:grid;grid-template-columns:310px minmax(0,1fr);gap:20px;align-items:start}.workspace-sidebar{background:var(--paper);border:1px solid var(--line);border-radius:14px;overflow:hidden}.workspace-sidebar .instructions{padding:22px}.workspace-sidebar .brief{font-size:.9rem}.workspace-sidebar .steps,.workspace-sidebar .criteria{font-size:.76rem}.workspace-sidebar .instructions section{margin-top:22px}.workspace-sidebar .hints{font-size:.73rem;padding:12px}.workspace-sidebar .hints ol{font-size:.73rem}.workspace-sidebar .notice{font-size:.76rem;margin-top:18px}.workspace-actions{padding:20px;border-top:1px solid var(--line);display:grid;gap:10px}.submission-state{font-size:.72rem;line-height:1.6;color:var(--muted);margin-bottom:4px}.workspace-actions .button{font-size:.78rem}.workspace-actions .text-button{font-size:.7rem}.editor-panel{border:1px solid #d5ddcd;border-radius:14px;overflow:hidden;background:#fff;min-width:0}.editor-toolbar{display:flex;justify-content:space-between;gap:14px;align-items:center;flex-wrap:wrap;padding:13px 16px;border-bottom:1px solid var(--line);background:#fcfcf7;min-height:66px}.run-controls{display:flex;gap:8px}.run-controls .button{min-height:36px;font-size:.72rem;padding:8px 11px}.run{background:#e7efdc;border-color:#d3dfc2;color:#467142}.save-status{font-size:.68rem;color:#7e8777;max-width:420px;overflow-wrap:anywhere}.save-status.pending{color:#a17e35}.save-status.saved{color:#638348}.save-status.error{color:#ad5744}.scratch-frame{display:block;width:100%;height:clamp(590px,calc(100dvh - 245px),850px);border:0;background:#f1f4f8}.editor-footnote{padding:10px 16px;font-size:.65rem;color:#8e9589;border-top:1px solid var(--line)}.editor-mobile-note{display:none}.conflict-notice{border-radius:0;border:0;border-bottom:1px solid #edccbd}.conflict-notice .button{font-size:.72rem;margin:12px 6px 0 0}.review-sidebar .instructions>h2{font-size:1.35rem;margin-bottom:5px}.review-sidebar .instructions>.badge{margin:12px 0}.review-sidebar .instructions>p:not(.muted){font-size:.78rem;line-height:1.7;margin:16px 0}.review-sidebar .instructions>.button{font-size:.73rem}.review-sidebar .field{margin-top:22px}.review-sidebar textarea{font-weight:450;font-size:.8rem}.review-actions{display:grid;gap:10px;margin-top:20px}.review-actions .button{font-size:.76rem}
/* Teacher controls share the same calm surfaces. */
.teacher-page{max-width:1340px}.class-picker{display:grid;gap:5px;min-width:230px}.class-picker select{font-size:.85rem;background:var(--paper);padding:11px}.teacher-create{padding:20px 25px;margin-bottom:25px}.create-class-form{display:flex;align-items:flex-end;gap:16px}.create-class-form .field{flex:1}.create-class-form .button{font-size:.81rem;min-width:170px;min-height:48px}.teacher-create .notice{margin-top:14px}.class-summary{display:flex;justify-content:space-between;align-items:center;gap:30px;background:#e9eddd;border:1px solid #e0e5d1;border-radius:17px;padding:27px 30px;margin-bottom:30px}.class-summary h2{font-size:1.8rem;margin-top:10px}.class-summary p{font-size:.8rem;color:#77836a;margin-top:9px}.join-code{display:grid;justify-items:center;gap:3px;background:#f8faef;border:1px dashed #c1cfaa;border-radius:12px;padding:14px 27px}.join-code>span{font-size:.67rem;color:#8b947f}.join-code strong{font-family:ui-monospace,monospace;font-size:1.65rem;letter-spacing:.13em;color:var(--forest);user-select:all}.join-code .text-button{font-size:.65rem}.teacher-layout{display:grid;grid-template-columns:minmax(0,1fr) minmax(300px,420px);gap:27px;align-items:start}.release-panel,.submissions-panel{padding:24px}.release-panel>.muted{margin-top:-5px;margin-bottom:20px;font-size:.73rem}.release-row{display:flex;align-items:center;gap:12px;padding:14px 0;border-bottom:1px solid #ebeee2;cursor:pointer}.release-row:last-child{border-bottom:0}.release-row.planned{cursor:default;opacity:.6}.release-number{width:30px;height:30px;background:#f0f2e7;border-radius:8px;display:grid;place-items:center;font-size:.73rem;color:#899a75;flex-shrink:0}.release-copy{display:flex;flex-direction:column;gap:3px;flex:1}.release-copy strong{font-size:.77rem;line-height:1.45;font-weight:650}.release-copy small{font-size:.61rem;color:#8d9582}.release-row input{width:19px;height:19px;margin-left:8px}.submission-list{display:grid;gap:15px}.submission-card{border:1px solid var(--line);border-radius:12px;padding:17px}.submission-author{display:flex;align-items:center;gap:10px;margin-bottom:15px}.submission-author .avatar{width:31px;height:31px;font-size:.73rem}.submission-author>div{display:grid;gap:1px}.submission-author strong{font-size:.8rem}.submission-author small{font-size:.61rem}.submission-card h3{font-size:.9rem;line-height:1.45}.submission-meta{display:flex;gap:8px;flex-wrap:wrap;align-items:center;margin:12px 0}.submission-meta .small{font-size:.61rem}.submission-card>.small{font-size:.7rem;margin:0 0 12px;color:#8b7654}.submission-card .button{font-size:.72rem;min-height:38px;padding:9px}.submissions-panel .section-heading h2{font-size:1.2rem}.submissions-panel .section-heading .text-button{font-size:.7rem}.submissions-panel .empty-state{padding:40px 5px}.submissions-panel .empty-state p{font-size:.78rem}
@media(min-width:1600px){.scratch-layout{grid-template-columns:330px minmax(0,1fr)}.workspace-page{padding-left:40px;padding-right:40px}.scratch-frame{height:calc(100dvh - 250px)}}
@media(max-width:1100px){.topbar-inner{padding:17px 30px;gap:30px}.page{padding:30px}.course-layout{grid-template-columns:minmax(0,1fr) 310px;gap:24px}.course-hero{padding:28px 30px}.hero-art{width:290px}.hero-copy h2{font-size:2.15rem}.lesson-detail{padding:20px}.hero-facts{gap:15px}.hero-facts span{font-size:.61rem}.auth-story{padding:35px}.auth-story h1{font-size:3.1rem}.auth-story>.brand{margin-bottom:55px}.story-bottom{flex-direction:column;align-items:flex-start}.auth-fox{width:280px;margin-top:20px}.auth-panel{padding:60px 35px 25px}.puzzle-layout{grid-template-columns:300px minmax(0,1fr);gap:20px}.scratch-layout{grid-template-columns:265px minmax(0,1fr);gap:15px}.workspace-sidebar .instructions{padding:18px}.workspace-page{padding:23px 20px}.teacher-layout{grid-template-columns:minmax(0,1fr) 340px;gap:20px}.release-panel,.submissions-panel{padding:20px}}
@media(max-width:900px){.topbar-inner{gap:24px;padding:16px 24px;flex-wrap:wrap}.brand{font-size:1.2rem}.brand img{width:33px;height:33px}.brand-light{font-size:.95rem}.main-nav{gap:18px}.account-name{max-width:130px}.account{gap:8px}.account>.text-button{margin-left:5px}.nav-link.active:after{bottom:-16px}.course-layout{grid-template-columns:minmax(0,1fr);gap:30px}.lesson-detail{position:static;padding:25px}.task-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 25px}.task-list>.section-heading{grid-column:1/-1;flex-direction:row;align-items:center}.task-card{align-self:start}.hero-art{width:250px;margin-right:-25px}.hero-copy h2{font-size:2rem}.hero-copy>p{max-width:310px}.hero-facts{gap:14px}.course-hero{min-height:280px}.module-filters{margin-bottom:22px}.catalog-legend{margin-top:20px}.puzzle-layout{grid-template-columns:1fr}.puzzle-layout>.instructions{display:block}.puzzle-layout .instructions .brief{font-size:1rem}.puzzle-card{max-width:none}.workspace-page{padding:20px 16px}.scratch-layout{display:flex;flex-direction:column}.workspace-sidebar{width:100%}.workspace-sidebar .instructions{padding:23px}.workspace-sidebar .brief{font-size:.98rem}.workspace-sidebar .instructions section{display:inline-block;width:48%;vertical-align:top;padding-right:15px}.workspace-sidebar .instructions .steps,.workspace-sidebar .instructions .criteria{font-size:.8rem}.workspace-actions{display:flex;align-items:center;gap:10px;flex-wrap:wrap;padding:16px 22px}.workspace-actions .submission-state{width:100%;margin:0}.workspace-actions>.button{flex:1}.workspace-actions>.text-button{padding:6px}.editor-panel{width:100%}.editor-mobile-note{display:block;background:#f6f5e9;padding:9px 15px;font-size:.68rem;color:#89816d;border-bottom:1px solid var(--line)}.scratch-frame{height:650px}.review-sidebar .instructions section{display:block;width:100%}.review-sidebar .review-actions{grid-template-columns:1fr 1fr}.review-sidebar .field{max-width:600px}.teacher-layout{grid-template-columns:minmax(0,1fr)}.submissions-panel{grid-row:1}.submission-list{grid-template-columns:repeat(2,minmax(0,1fr))}.class-summary{padding:24px}.release-row{padding:15px 0}.auth-story h1{font-size:2.7rem}.auth-story{padding:30px}.auth-story>.brand{margin-bottom:60px}.auth-panel{padding:50px 27px 25px}.auth-card h2{font-size:1.7rem}.auth-fox{width:250px;margin-right:-30px}.story-bottom>span:last-child{max-width:220px}.auth-story:before{right:-220px}.auth-story>p{font-size:.86rem}}
@media(max-width:650px){:root{font-size:16px}.auth-page{grid-template-columns:1fr}.auth-story{padding:22px 25px 26px;min-height:230px}.auth-story>.brand{margin-bottom:28px}.auth-story>.eyebrow{margin-bottom:10px;font-size:.55rem}.auth-story h1{font-size:2rem;max-width:250px;line-height:1.12}.auth-story h1 br:first-of-type{display:none}.auth-story>p{font-size:.74rem;max-width:245px;margin-top:12px;padding-right:14px}.auth-fox{position:absolute;right:2px;bottom:9px;width:175px;margin:0;opacity:.95}.story-bottom{display:none}.auth-story:before{width:230px;height:230px;bottom:-70px;right:-80px}.auth-panel{padding:33px 25px 24px}.auth-card{max-width:420px}.auth-card>.eyebrow{font-size:.56rem;margin-bottom:10px}.auth-card h2{font-size:1.65rem}.auth-card>.muted{font-size:.82rem}.auth-tabs{margin:22px 0}.auth-form{gap:16px}.auth-footer{margin-top:28px}.topbar-inner{padding:13px 18px;gap:14px;min-height:70px}.brand{gap:7px;font-size:1.15rem}.brand-light{font-size:.85rem;margin-left:4px}.brand img{width:31px;height:31px}.account{gap:8px}.account-name{display:none}.account .avatar{width:30px;height:30px;font-size:.72rem}.account>.text-button{font-size:.68rem;margin-left:3px}.main-nav{order:3;width:100%;gap:25px;padding-top:8px;border-top:1px solid #eceee3;align-self:auto}.nav-link{padding:5px 1px;font-size:.76rem}.nav-link.active:after{bottom:-13px;height:2px}.page{padding:27px 18px 35px}.page-heading{margin-bottom:22px;align-items:flex-start;flex-direction:column;gap:13px}.page-heading .eyebrow{font-size:.58rem;margin-bottom:8px}.page-heading h1{font-size:1.75rem}.class-badge{font-size:.62rem;padding:6px 10px}.course-hero{padding:26px 23px;min-height:265px;margin-bottom:27px;border-radius:16px}.hero-copy h2{font-size:1.8rem}.hero-copy .eyebrow{font-size:.54rem;margin-bottom:14px}.hero-copy>p{font-size:.73rem;max-width:235px;padding-right:7px;margin-top:15px}.hero-art{position:absolute;width:160px;right:-17px;bottom:25px;opacity:.95;margin:0}.hero-copy{width:100%;max-width:none}.hero-facts{margin-top:22px;gap:8px 16px;max-width:220px;padding-right:20px}.hero-facts span{font-size:.58rem}.hero-facts span:last-child{display:none}.course-hero:after{width:290px;height:290px;right:-110px;top:0}.hero-copy h2,.hero-copy>p{position:relative;z-index:1}.section-heading{align-items:flex-start;gap:8px;flex-direction:column;margin-bottom:16px}.section-heading h2{font-size:1.2rem}.section-heading>.muted{font-size:.66rem}.module-filters{gap:6px;margin:18px 0 25px}.filter-pill{font-size:.64rem;padding:7px 11px}.module-title h3{font-size:.82rem}.lesson-card{padding:13px 12px;gap:11px;border-radius:11px}.lesson-card strong{font-size:.78rem}.lesson-card small{font-size:.6rem}.lesson-number{min-width:34px;height:35px;font-size:.75rem;border-radius:9px}.lesson-indicator{font-size:.9rem}.module-section{margin-bottom:24px}.catalog-legend{font-size:.58rem;gap:9px 14px}.lesson-detail{padding:22px}.lesson-detail h2{font-size:1.25rem}.task-list{display:block}.task-list>.section-heading{display:flex;align-items:flex-start;flex-direction:column;gap:6px}.task-card{padding:18px 0;gap:12px}.task-card h4{font-size:.9rem}.task-card .button{font-size:.8rem;min-height:42px}.task-meta .small{font-size:.64rem}.task-meta .badge{font-size:.6rem}.lesson-summary{font-size:.8rem}.footer{padding:22px 18px;flex-direction:column;gap:6px;font-size:.61rem}.workspace-heading{flex-direction:column;align-items:flex-start;gap:13px;margin-bottom:20px}.workspace-heading h1{font-size:1.45rem;line-height:1.3}.workspace-heading .small{font-size:.72rem}.task-heading-meta{gap:6px}.task-page{padding-top:20px}.puzzle-layout{gap:18px}.puzzle-layout>.instructions{padding:22px}.instructions .brief{font-size:.95rem}.instructions h2{font-size:.9rem}.steps,.criteria{font-size:.8rem}.puzzle-card{padding:22px 17px;border-radius:14px}.puzzle-card-heading{margin-bottom:24px}.puzzle-card-heading .badge{font-size:.53rem}.puzzle-card-heading .small{font-size:.65rem}.puzzle-play{min-height:180px}.puzzle-play>.muted{font-size:.78rem}.choice-option{padding:13px 12px;gap:10px;min-height:70px;font-size:.9rem}.option-letter{display:none}.choice-option input{width:18px;height:18px}.choice-list{gap:10px}.choice-list legend{font-size:1.1rem}.puzzle-submit .button{width:100%;font-size:.85rem}.puzzle-submit{padding-top:22px;margin-top:22px}.order-list li{padding:12px 10px;gap:9px}.order-number{width:26px;height:28px;border-radius:6px;font-size:.7rem}.order-text{font-size:.82rem}.order-arrows{flex-direction:column;gap:5px}.icon-button{height:31px;min-width:31px;font-size:1rem}.puzzle-grid{max-width:300px;border-width:2px;gap:2px}.grid-cell{font-size:1.3rem}.grid-cell.current{font-size:1.5rem}.route-actions{gap:20px}.workspace-page{padding:20px 12px}.workspace-sidebar .instructions{padding:20px}.workspace-sidebar .instructions section{display:block;width:100%;padding:0}.workspace-sidebar .instructions .steps,.workspace-sidebar .instructions .criteria{font-size:.78rem}.workspace-actions{padding:16px 20px}.workspace-actions .button{font-size:.75rem;padding:11px;min-width:0}.workspace-actions>.text-button{width:100%;padding:6px}.editor-toolbar{padding:12px;gap:9px}.save-status{font-size:.64rem;width:100%;max-width:none}.editor-mobile-note{font-size:.63rem}.scratch-frame{height:640px;min-width:0}.editor-footnote{font-size:.61rem;padding:10px 12px}.review-sidebar .review-actions{grid-template-columns:1fr}.review-sidebar .instructions>.button{font-size:.77rem}.teacher-page .page-heading{gap:20px}.class-picker{width:100%}.class-picker select{font-size:.8rem}.teacher-create{padding:18px;margin-bottom:20px}.create-class-form{align-items:stretch;flex-direction:column;gap:13px}.create-class-form .button{font-size:.8rem}.class-summary{padding:23px;flex-direction:column;align-items:flex-start;gap:22px;margin-bottom:22px}.class-summary h2{font-size:1.6rem}.class-summary p{font-size:.73rem}.join-code{width:100%;padding:14px}.join-code strong{font-size:1.8rem}.teacher-layout{gap:20px}.release-panel,.submissions-panel{padding:19px}.release-panel .section-heading,.submissions-panel .section-heading{flex-direction:row;align-items:center}.release-panel .section-heading h2{font-size:1.1rem}.release-panel .section-heading .badge{font-size:.58rem}.release-panel>.muted{font-size:.7rem}.release-copy strong{font-size:.72rem}.release-copy small{font-size:.59rem}.release-row{gap:9px}.release-number{width:26px;height:28px;font-size:.66rem}.submission-list{grid-template-columns:1fr}.submissions-panel .section-heading h2{font-size:1.1rem}.submission-card h3{font-size:.88rem}.submission-card .button{font-size:.77rem;min-height:41px}.toast{bottom:18px;padding:13px 16px;font-size:.8rem}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{transition:none!important;scroll-behavior:auto!important}}

/* Classroom and home practice share a topic, with separate access and progress. */
.assignment-tabs{display:flex;gap:6px;padding:5px;margin:24px 0 17px;background:#f0eee3;border-radius:12px}.assignment-tab{flex:1;display:flex;align-items:center;justify-content:center;gap:7px;border:0;border-radius:8px;background:transparent;color:#637160;padding:12px 8px;font:inherit;font-size:.78rem;font-weight:700;cursor:pointer}.assignment-tab.selected{background:var(--paper);color:var(--forest);box-shadow:0 2px 7px #253f3012}.assignment-tab:focus-visible{outline:2px solid var(--forest);outline-offset:2px}.assignment-count{font-size:.65rem;background:#e7eddf;color:#49663e;padding:2px 6px;border-radius:6px}.assignment-summary{display:flex;flex-direction:column;gap:5px;margin:0 0 16px}.assignment-summary>strong{font-size:1rem}.assignment-intro{line-height:1.65;margin-bottom:18px}.badge.homework{background:#f7e9d6;color:#93652b}.badge.lesson{background:#e9efdf;color:#52703e}.lesson-access{margin-top:4px!important;font-size:.59rem!important;line-height:1.4}.release-row{grid-template-columns:28px minmax(0,1fr) auto}.release-controls{display:flex;gap:7px}.release-toggle{display:flex;align-items:center;flex-direction:column;gap:7px;font-size:.6rem;color:#566850;min-width:43px;cursor:pointer}.release-toggle input{width:20px;height:20px;accent-color:#315b46;cursor:pointer}.release-toggle.unavailable{opacity:.5;cursor:default}.release-toggle input:disabled{cursor:default}
@media(max-width:600px){.assignment-tab{font-size:.7rem;padding:11px 4px;gap:4px}.assignment-count{font-size:.58rem}.release-row{grid-template-columns:25px minmax(0,1fr) auto;gap:7px}.release-controls{gap:4px}.release-toggle{font-size:.55rem;min-width:37px}.task-heading-meta{flex-wrap:wrap}}

/* Keep the selected work primary; the topic map is compact navigation. */
.course-page{max-width:1480px}.course-page .course-hero{min-height:190px;padding:24px 30px;margin-bottom:28px}.course-page .hero-copy h2{font-size:1.8rem;line-height:1.15}.course-page .hero-copy p{margin-top:12px;max-width:650px}.course-page .hero-art{width:220px;flex:0 0 220px}.course-page .hero-art img{width:220px;height:168px}.course-layout{grid-template-columns:290px minmax(0,1fr);gap:26px}.course-layout>.catalog{position:sticky;top:20px;min-width:0}.topic-navigation{border:1px solid var(--line);border-radius:15px;background:var(--paper);overflow:hidden}.topic-navigation>summary{padding:17px 16px;cursor:pointer;list-style:none;display:flex;flex-direction:column;gap:5px;border-bottom:1px solid var(--line)}.topic-navigation>summary::-webkit-details-marker{display:none}.topic-nav-heading{font-size:.95rem;font-weight:750;color:var(--forest)}.topic-nav-current{display:none}.topic-list{max-height:calc(100vh - 124px);overflow-y:auto;overscroll-behavior:contain;scrollbar-width:thin;padding:14px 10px}.topic-list .module-title{margin:0 5px 12px}.topic-list .module-title h3{font-size:.7rem;color:var(--muted);line-height:1.5}.topic-list .lesson-list{gap:6px}.topic-list .lesson-card{min-height:66px;padding:10px;gap:9px;border-radius:9px}.topic-list .lesson-number{min-width:28px;height:30px;font-size:.7rem;border-radius:8px}.topic-list .lesson-card-copy{gap:4px}.topic-list .lesson-card-copy strong{font-size:.73rem;line-height:1.4;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.topic-list .lesson-card-copy small{font-size:.59rem;line-height:1.4}.topic-list .lesson-access{display:none}.topic-list .lesson-indicator{font-size:.8rem}.topic-list .module-section{margin-bottom:12px}.topic-list .catalog-legend{margin:12px 5px 3px;font-size:.57rem;display:flex;flex-direction:column;gap:5px}.course-layout>.lesson-detail{position:static;min-width:0;padding:28px}.lesson-detail h2{font-size:1.5rem;line-height:1.35}.lesson-detail .lesson-summary{max-width:850px;font-size:.92rem;line-height:1.7}.lesson-detail .objectives{margin-top:18px}.lesson-detail .task-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin-top:20px}.lesson-detail .task-card{align-self:stretch;min-width:0;padding:19px;border:1px solid var(--line);border-radius:13px;gap:13px;background:#fdfcf7}.lesson-detail .task-card h4{font-size:1rem;line-height:1.45}.lesson-detail .task-card>.button{margin-top:auto}.lesson-detail .task-meta{flex-wrap:wrap;font-size:.75rem}.lesson-detail .assignment-summary{flex-direction:row;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}.lesson-detail .assignment-intro{max-width:780px}.lesson-detail .detail-footnote{margin-top:22px}
@media(min-width:901px) and (max-width:1150px){.course-layout{grid-template-columns:250px minmax(0,1fr);gap:20px}.lesson-detail .task-list{grid-template-columns:1fr}.course-layout>.lesson-detail{padding:24px}}
@media(max-width:900px){.course-layout{grid-template-columns:minmax(0,1fr);gap:18px}.course-layout>.catalog{position:static}.topic-navigation>summary{position:relative;padding-right:48px;min-width:0;border-bottom:0}.topic-navigation>summary:after{content:'⌄';position:absolute;right:20px;top:22px;font-size:1.2rem;color:var(--forest)}.topic-navigation[open]>summary:after{content:'⌃'}.topic-navigation[open]>summary{border-bottom:1px solid var(--line)}.topic-nav-current{display:block;overflow:hidden;white-space:nowrap;text-overflow:ellipsis;font-size:.72rem;color:var(--muted)}.topic-list{max-height:55vh;padding:12px}.topic-list .lesson-card{min-height:60px}.topic-list .lesson-card-copy strong{-webkit-line-clamp:2;font-size:.8rem}.course-layout>.lesson-detail{padding:24px}.course-page .hero-art{width:180px;flex-basis:180px}.course-page .hero-art img{width:180px;height:137px}}
@media(max-width:650px){.course-page .course-hero{min-height:0;padding:21px;margin-bottom:22px}.course-page .hero-copy h2{font-size:1.5rem}.course-page .hero-art{display:none}.course-page .hero-copy p{font-size:.8rem;margin-top:10px}.course-page .hero-facts{margin-top:15px}.course-layout>.lesson-detail{padding:18px}.lesson-detail h2{font-size:1.2rem}.lesson-detail .lesson-summary{font-size:.85rem}.lesson-detail .task-list{grid-template-columns:1fr;gap:12px}.lesson-detail .task-card{padding:17px}.lesson-detail .task-card h4{font-size:.95rem}.lesson-detail .assignment-summary{align-items:flex-start;flex-direction:column;gap:5px}.topic-navigation>summary{padding:14px 45px 14px 15px}.topic-navigation>summary:after{top:17px}}

/* Formative program feedback stays separate from teacher grading. */
.analysis-result{padding:18px 22px;border-bottom:1px solid var(--line);background:#f3f6ec;color:var(--forest);font-size:.8rem;line-height:1.6}.analysis-result[hidden]{display:none}.analysis-result h2{font-size:.95rem;margin:0 0 7px}.analysis-result p{margin:6px 0}.analysis-result[data-status=failed],.analysis-result[data-status=stale],.analysis-result[data-status=partial]{background:#fbf3e4;color:#72552f}.analysis-result[data-status=error]{background:#fcf0ed;color:#8b4036}.analysis-checks,.analysis-manual{padding-left:22px;margin:12px 0}.analysis-checks li{margin:7px 0}.analysis-checks li>strong,.analysis-checks li>span{display:block}.analysis-checks li>span,.analysis-advice,.analysis-manual{font-size:.74rem}.analysis-checks [data-check-status=passed]{color:#315b46}.analysis-checks [data-check-status=failed]{color:#874523}.editor-toolbar .run-controls{flex-wrap:wrap}.editor-toolbar [data-testid=check-project]{font-size:.73rem}
@media(max-width:650px){.analysis-result{padding:15px}.analysis-result h2{font-size:.88rem}.editor-toolbar [data-testid=check-project]{min-height:40px}}

.analysis-details{margin:10px 0}.analysis-details>summary{font-weight:700;cursor:pointer;padding:4px 0}.analysis-details>summary:focus-visible{outline:2px solid currentColor;outline-offset:3px}

/* Original themed practice cards: each world shows its own setting and actor. */
.adventure-intro{margin:1rem 0;color:var(--muted,#657568);font-size:.9rem}
.adventure-card{overflow:hidden;border-color:#bed5d2}
.adventure-card-art{align-self:stretch;flex-shrink:0;position:relative;height:130px;margin:-1.5rem -1.5rem 1rem;background:var(--world-color,#177d91);overflow:hidden}
.adventure-card-scene{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.adventure-card-actor{position:absolute;right:18px;bottom:8px;width:98px;height:104px;object-fit:contain;filter:drop-shadow(0 5px 5px #0003)}
.adventure-card-art>span{position:absolute;left:16px;bottom:14px;background:#fffffff0;color:#233f48;padding:5px 11px;border-radius:16px;font-size:.8rem;font-weight:700;max-width:65%}
.mission-layout{display:grid;grid-template-columns:260px minmax(0,1fr);gap:22px;align-items:start}
.mission-preview-note{padding:10px 16px;margin-bottom:16px;font-size:.9rem}
@media(max-width:1100px){.mission-layout{grid-template-columns:210px minmax(0,1fr);gap:14px}}
@media(max-width:900px){.mission-layout{grid-template-columns:1fr}.mission-layout>.instruction-panel{max-height:none}.adventure-card-art{height:118px}}

.course-page .adventure-hero-art{display:grid;grid-template-columns:1fr 1fr;gap:10px;width:260px;margin:0;flex-basis:260px}.adventure-hero-tile{border-radius:15px;display:flex;align-items:center;gap:6px;padding:8px;min-width:0}.course-page .adventure-hero-tile img{width:66px;height:70px;object-fit:contain;flex-shrink:0}.adventure-hero-tile span{font-size:.67rem;font-weight:700;line-height:1.4}.adventure-hero-tile:nth-child(2){transform:translateY(-8px)}.adventure-hero-tile:nth-child(3){transform:translateY(7px)}
@media(max-width:900px){.course-page .adventure-hero-art{width:220px;flex-basis:220px;gap:7px}.course-page .adventure-hero-tile img{width:50px;height:56px}.adventure-hero-tile span{font-size:.6rem}}
@media(max-width:650px){.course-page .adventure-hero-art{display:none}}