.problem-workshop{max-width:1000px;color:var(--color-ink,#243d46);margin:auto;padding:20px 24px 70px}.problem-workshop>header{margin:28px 0}.problem-workshop h1{margin:12px 0;font-size:clamp(30px,4vw,46px);font-weight:800;line-height:1.16}.problem-workshop p{font-size:17px;line-height:1.7}.problem-workshop h2{font-size:25px;font-weight:750;line-height:1.4}.problem-workshop h3{margin:20px 0 10px;font-size:20px;font-weight:750}.problem-catalog{margin:32px 0}.problem-catalog>div,.problem-catalog details>div{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin:18px 0;display:grid}.problem-catalog details{border-bottom:1px solid #cad8d5;padding:14px 0}.problem-catalog summary{cursor:pointer;padding:8px;font-size:19px;font-weight:750}.problem-topic{background:#fff;border:1px solid #cad8d5;border-radius:16px;flex-direction:column;gap:10px;padding:22px;transition:border-color .2s;display:flex}.problem-topic:hover{border-color:#22685b}.problem-topic small,.problem-topic span{color:#52686b;font-size:14px}.problem-topic strong{font-size:20px}.study-lesson,.study-start,.study-problem,.study-summary,.study-transfer{background:#fff;border:1px solid #c5d6d0;border-radius:18px;margin:20px 0;padding:28px}.study-lesson summary{cursor:pointer;font-size:20px;font-weight:750}.study-lesson p{margin:16px 0}.study-formula{overflow-wrap:anywhere;background:#eaf3ee;border-radius:10px;padding:18px;font:700 20px/1.6 ui-monospace,monospace}.study-lesson ol,.study-feedback ol{margin:16px 0 24px;padding-left:24px;list-style:decimal}.study-lesson li,.study-feedback li{overflow-wrap:anywhere;padding:5px 0;font-size:17px;line-height:1.6}.study-lesson aside{background:#faf4e7;border-left:3px solid #ac853b;padding:15px 20px}.study-lesson aside p{margin:6px 0}.study-stages{flex-wrap:wrap;gap:8px;margin:22px 0;display:flex}.study-stages span{background:#edf3ef;border:1px solid #d3ded5;border-radius:30px;padding:7px 12px;font-size:13px}.study-progress{color:#345c55;justify-content:space-between;gap:12px;font-size:14px;font-weight:700;display:flex}.study-problem progress{accent-color:#327663;width:100%;height:6px;margin:15px 0 28px}.study-problem h2{white-space:pre-line;margin:0 0 25px}.study-options{gap:10px;margin:12px 0 22px;display:grid}.study-options label{cursor:pointer;border:1px solid #b8cbc3;border-radius:12px;align-items:center;gap:12px;min-height:54px;padding:14px 16px;font-size:17px;display:flex}.study-options label:has(:checked){background:#e6f3ec;border:2px solid #28745d;padding:13px 15px}.study-options input{accent-color:#276953;flex-shrink:0;width:18px;height:18px}.study-number,.study-reason,.study-transfer label{margin:18px 0;font-size:15px;font-weight:700;display:block}.study-number input,.study-reason textarea,.study-transfer textarea{color:#243d46;background:#fbfdfb;border:1px solid #96b1a7;border-radius:10px;width:100%;max-width:100%;margin-top:10px;padding:13px 15px;font-size:18px;font-weight:400;display:block}.study-number input{max-width:320px}.study-reason textarea,.study-transfer textarea{resize:vertical}.study-hint{background:#f7f0dc;border-left:3px solid #967325;margin-top:20px;padding:15px}.study-feedback{background:#edf4f0;border-radius:13px;margin-top:28px;padding:22px}.study-feedback.is-incorrect{background:#fcf2e5}.study-feedback h3{margin-top:0}.study-summary>p>strong{margin-right:10px;font-size:35px}.study-summary>ol{margin:24px 0}.study-summary>ol>li{border-top:1px solid #d4dfd9;gap:18px;padding:18px 0;display:flex}.study-summary>ol>li>span{font-size:25px}.study-summary li p{font-size:15px}.study-summary blockquote{border-left:2px solid #b6c9bf;margin-top:10px;padding:8px 15px;font-style:italic}.study-storage{color:#526762;font-size:13px!important}.study-storage span{display:block}.problem-workshop button:focus-visible,.problem-workshop a:focus-visible,.problem-workshop input:focus-visible,.problem-workshop textarea:focus-visible,.problem-workshop summary:focus-visible{outline-offset:4px;outline:3px solid #246f99}.problem-workshop button:disabled{opacity:.65;cursor:default}.problem-workshop .case-actions>button:not(.stem-button){border:1px solid #92aaa0;border-radius:9px;min-height:44px;padding:10px 15px}.problem-workshop .stem-button{min-height:46px}.study-transfer .stem-button{margin-top:15px;display:inline-flex}@media (max-width:600px){.problem-workshop{padding:12px 4px 40px}.problem-catalog>div,.problem-catalog details>div{grid-template-columns:1fr}.study-lesson,.study-start,.study-problem,.study-summary,.study-transfer{border-radius:14px;padding:20px 16px}.problem-workshop h2{font-size:22px}.study-feedback{padding:16px}.problem-workshop p{font-size:16px}.study-formula{font-size:17px}}.workshop-hero{background:linear-gradient(120deg,#f3effa,#edf6f2);border:1px solid #d8d3e7;border-radius:24px;padding:28px 32px;position:relative}.workshop-hero>p{max-width:680px}.workshop-path{flex-wrap:wrap;gap:12px 24px;margin-top:22px;padding:0;list-style:none;display:flex}.workshop-path li{color:#52606b;align-items:center;gap:9px;font-size:14px;font-weight:650;display:flex}.workshop-path li>span{background:#fff;border:1px solid #c2cbd0;border-radius:50%;place-items:center;width:28px;height:28px;display:grid}.workshop-path li[aria-current=step]{color:#523480}.workshop-path li[aria-current=step]>span{color:#fff;background:#624292;border-color:#624292}.workshop-tools{background:#fff;border:1px solid #d4dfd9;border-radius:18px;padding:22px}.workshop-search>span{margin-bottom:10px;font-weight:700;display:block}.workshop-search>div{background:#fbfdfb;border:1px solid #9eb2aa;border-radius:12px;align-items:center;gap:12px;padding:0 14px;display:flex}.workshop-search svg{color:#536b62;flex-shrink:0}.workshop-search input{color:#243d46;background:0 0;width:100%;min-width:0;min-height:48px;padding:14px 0;font-size:16px}.workshop-search input::placeholder{color:#617069;opacity:1}.workshop-search>div:focus-within{outline-offset:3px;outline:3px solid #246f99}.workshop-search input:focus-visible{outline:none}.workshop-filters{flex-wrap:wrap;gap:8px;margin-top:18px;display:flex}.workshop-filters button{color:#354f45;background:#fff;border:1px solid #b8c6c0;border-radius:24px;min-height:44px;padding:9px 16px;font-size:14px;font-weight:650}.workshop-filters button[aria-pressed=true]{color:#fff;background:#543b7b;border-color:#543b7b}.workshop-result-count{color:#53675f;margin-top:16px;font-size:14px!important}.workshop-count{vertical-align:middle;background:#eaf0ed;border-radius:20px;margin-left:8px;padding:4px 10px;font-size:14px;font-weight:600}.workshop-empty{text-align:center;background:#fff;border:1px dashed #9eb2aa;border-radius:18px;justify-items:center;margin:20px 0;padding:32px 20px;display:grid}.workshop-card-top{align-items:center;gap:10px;display:flex}.workshop-card-top>svg:last-child{color:#52686b;flex-shrink:0;margin-left:auto}.workshop-topic-icon{background:#eee8f8;border-radius:12px;flex-shrink:0;place-items:center;width:42px;height:42px;display:grid;color:#58377b!important}.subject-physics .workshop-topic-icon{background:#e1eff8;color:#275f80!important}.subject-chemistry .workshop-topic-icon{background:#f8ead8;color:#7b5020!important}.subject-biology .workshop-topic-icon{background:#e2f0e4;color:#30623b!important}.workshop-card-meta{flex-wrap:wrap;justify-content:space-between;gap:12px;margin-top:auto;display:flex}.workshop-catalog .problem-topic{border-radius:18px;gap:16px;transition:box-shadow .16s,border-color .16s}.workshop-catalog .problem-topic strong{line-height:1.4}.study-result-badge{color:#305742;background:#e5efe8;border-radius:20px;margin-bottom:8px;padding:4px 10px;font-size:12px;font-weight:700;display:table}.study-result-badge.status-retry,.study-result-badge.status-supported{color:#73501f;background:#f7ecd9}.study-result-badge.status-corrected{color:#454c7e;background:#e8eafa}.science-investigation{border-top:1px solid #cad8d5;margin-top:28px;padding-top:24px}.science-investigation h3{margin:8px 0 22px}.investigation-step{grid-template-columns:30px minmax(0,1fr);gap:14px;margin:24px 0;display:grid}.investigation-number{color:#345b50;background:#e5eeec;border-radius:50%;place-items:center;width:30px;height:30px;font-size:14px;font-weight:750;display:grid}.investigation-step h4{font-size:18px;font-weight:750}.investigation-step p{margin:8px 0 14px}.science-investigation label{font-size:14px;font-weight:650;display:block}.science-investigation textarea{resize:vertical;color:#243d46;background:#fbfdfb;border:1px solid #96b1a7;border-radius:10px;width:100%;min-height:90px;margin-top:8px;padding:12px;font-size:16px;font-weight:400;display:block}.investigation-note{color:#526762;font-size:14px!important}.investigation-table table{border-collapse:collapse;table-layout:fixed;width:100%;font-size:15px}.investigation-table caption{text-align:left;margin-bottom:10px;font-weight:700}.investigation-table th,.investigation-table td{text-align:left;overflow-wrap:anywhere;vertical-align:top;border:1px solid #c3d3ca;padding:12px 10px}.investigation-table thead{background:#eaf3ee}.investigation-table tbody th{background:#f7faf8;font-weight:650}.investigation-explanation{background:#f7faf8;border:1px solid #c3d3ca;border-radius:10px;margin-top:18px;padding:14px}.investigation-explanation summary{min-height:28px;font-size:15px}.problem-workshop{overflow-wrap:anywhere}@media (hover:hover) and (pointer:fine){.workshop-catalog .problem-topic:hover{border-color:#7c659e;box-shadow:0 5px 18px #4030500c}}@media (prefers-reduced-motion:reduce){.workshop-catalog .problem-topic{transition:none}}@media (max-width:600px){.workshop-hero{border-radius:18px;padding:22px 18px}.workshop-tools{padding:16px}.workshop-path{gap:12px;font-size:13px}.workshop-path li,.workshop-card-meta{font-size:13px}.investigation-step{grid-template-columns:minmax(0,1fr);gap:8px}.investigation-table th,.investigation-table td{padding:9px 6px;font-size:13px}.workshop-filters button{padding:9px 12px}}.workshop-section>summary{cursor:pointer;color:#243d46;padding:10px 0}.workshop-section>summary h2{font-size:23px;display:inline}.course-navigation{flex-wrap:wrap;gap:8px;margin:0 0 24px;display:flex}.course-navigation a{color:#34574f;background:#fff;border:1px solid #b8cbc3;border-radius:24px;align-items:center;min-height:44px;padding:10px 16px;font-size:15px;font-weight:700;display:flex}.course-navigation a[aria-current=page]{color:#fff;background:#244f49;border-color:#244f49}.course-navigation a:focus-visible{outline-offset:3px;outline:3px solid #246f99}.science-course{max-width:none;padding:0 0 36px}.course-scope{color:#526762;font-size:14px!important}.course-card-action{align-items:center;gap:12px;font-weight:700;display:flex}.course-video{margin:24px 0}.course-video>h2{margin-bottom:16px}.course-video-placeholder{aspect-ratio:16/9;text-align:center;color:#34574f;background:#fff;border:2px dashed #a9bfb6;border-radius:22px;flex-direction:column;justify-content:center;align-items:center;min-height:240px;padding:24px;display:flex}.course-video-placeholder p{max-width:480px;margin-top:8px}.course-video-placeholder h3{margin:16px 0 0}.science-lesson .study-start .stem-button{margin-top:18px;display:inline-flex}.science-lesson-link{align-items:center;min-height:44px;margin-left:20px;display:inline-flex}@media (max-width:600px){.course-navigation a{padding:9px 13px;font-size:14px}.course-video-placeholder{aspect-ratio:auto;min-height:260px;padding:24px 16px}.science-lesson-link{width:fit-content;margin-left:0;display:flex}}.science-grade-summary{flex-wrap:wrap;gap:.75rem;margin:1rem 0;display:flex}.science-grade-summary span{color:#163e34;background:#fff;border:1px solid #bacdc6;border-radius:999px;padding:.5rem .8rem}.science-grade-picker,.science-source{background:#fff;border:1px solid #d5e1db;border-radius:1.25rem;margin:1.25rem 0;padding:1.25rem}.science-grade-picker h2{font-size:1.15rem;font-weight:800}.science-grade-picker p,.science-scope,.science-source p{color:#3d574f;line-height:1.7}.science-scope{max-width:70ch;margin:.75rem 0 1rem}.science-status{color:#345c4b;font-weight:700}.science-source summary{cursor:pointer;font-weight:800}.science-source a{color:#235f4e;overflow-wrap:anywhere;margin-top:.75rem;text-decoration:underline;display:inline-block}.science-sequence{flex-wrap:wrap;justify-content:space-between;gap:1rem;margin:1.5rem 0;display:flex}.science-sequence a{color:#235f4e;overflow-wrap:anywhere;background:#fff;border:1px solid #cbdcd2;border-radius:1rem;flex:1;min-width:0;padding:1rem;font-weight:700}.science-grade-picker .course-navigation{margin:.75rem 0}.science-grade-picker a:focus-visible,.science-sequence a:focus-visible,.science-source summary:focus-visible{outline-offset:4px;outline:3px solid #235f4e}@media (max-width:480px){.science-sequence{flex-direction:column}.science-grade-summary{font-size:.85rem}}.course-mastery{accent-color:#244f49;width:100%;height:8px;display:block}.course-practice-actions{flex-wrap:wrap;align-items:center;gap:12px;margin-top:20px;display:flex}.course-lesson .course-navigation{margin-top:20px}.math-course .problem-topic{overflow-wrap:anywhere;min-width:0}
.review-deck{max-width:780px;margin:auto}.review-stats{grid-template-columns:repeat(3,1fr);gap:12px;margin:24px 0;display:grid}.review-stats>div{color:#154e3b;background:#e8f5ef;border-radius:18px;flex-direction:column;gap:6px;padding:18px;display:flex}.review-stats strong{font-size:1.8rem}.review-stats span{font-size:.85rem}.review-card,.review-create,.readiness-check{color:#17213d;background:#fff;border:1px solid #d7e5df;border-radius:24px;margin:20px 0;padding:clamp(18px,4vw,32px);box-shadow:0 8px 24px #17213d08}.review-card h2,.readiness-check h2{white-space:pre-line;overflow-wrap:anywhere;font-size:1.35rem;font-weight:800}.review-card h3{margin:16px 0 8px;font-weight:800}.review-card p,.review-card li{white-space:pre-line;overflow-wrap:anywhere;line-height:1.65}.review-card ul,.review-card ol{list-style:revert;margin:12px 0;padding-left:24px}.review-deck label,.readiness-check label{margin:16px 0;font-weight:700;display:block}.review-deck textarea,.readiness-check input{color:#17213d;background:#fff;border:1px solid #9eafa6;border-radius:12px;width:100%;margin-top:8px;padding:12px;display:block}.review-answer{border-top:1px solid #d7e5df;margin-top:20px;padding-top:8px}.review-ratings{grid-template-columns:repeat(4,1fr);gap:10px;margin:18px 0;display:grid}.review-ratings button{background:#f3f8f5;border:1px solid #a6bcb0;border-radius:14px;flex-direction:column;justify-content:center;align-items:center;gap:5px;min-height:64px;display:flex}.review-ratings button[data-rating=again]{background:#fff1eb;border-color:#d49b7e}.review-ratings button[data-rating=easy]{background:#e1f4ec;border-color:#549c7c}.review-deck button:disabled,.review-save button:disabled{opacity:.6;cursor:wait}.review-deck a,.review-save button,.review-refresh{color:#076452;font-weight:800}.review-save button,.review-refresh{background:#f3faf6;border:1px solid #b3ccbe;border-radius:12px;min-height:44px;margin:10px 0;padding:10px 14px}.review-create summary{cursor:pointer;min-height:32px;font-weight:800}.review-deck :focus-visible,.review-save :focus-visible,.readiness-check :focus-visible{outline-offset:4px;outline:3px solid #2563eb}.learning-sequence{flex-wrap:wrap;gap:8px;margin:18px 0;padding:0;list-style:none;display:flex}.learning-sequence li{color:#275543;background:#edf5f1;border-radius:10px;padding:7px 11px;font-size:.8rem;font-weight:700}.readiness-check .readiness-options{gap:8px;display:grid}.readiness-check .readiness-options button{text-align:left;border:1px solid #b3ccbe;border-radius:12px;padding:12px}.readiness-feedback{background:#eff7f3;border-radius:14px;margin-top:16px;padding:16px}.readiness-feedback p{margin:8px 0}.review-entry{color:#125a42;background:#edf8f1;border:1px solid #c5ddd0;border-radius:18px;justify-content:space-between;align-items:center;gap:12px;margin:20px 0;padding:18px;font-weight:800;display:flex}.learning-reflection{background:#f0f8f3;border-left:4px solid #559879;margin:16px 0;padding:16px}.learning-reflection textarea{color:#17213d;background:#fff;border:1px solid #a7bcb0;border-radius:10px;width:100%;margin-top:8px;padding:10px;display:block}@media (max-width:480px){.review-ratings{grid-template-columns:repeat(2,1fr)}.review-stats{gap:6px}.review-stats>div{padding:12px}.review-stats strong{font-size:1.4rem}}.fraction-model{color:#174b3b;background:#eef7f2;border-radius:16px;margin:20px 0;padding:20px}.fraction-model figcaption{margin-bottom:16px;font-weight:800}.fraction-model-row{grid-template-columns:50px 1fr;align-items:center;gap:12px;margin:12px 0;display:grid}.fraction-model-strip{border:2px solid #174b3b;border-radius:6px;height:42px;display:grid;overflow:hidden}.fraction-model-strip span{background:#fff;border-right:1px solid #174b3b}.fraction-model-strip span:last-child{border-right:0}.fraction-model-strip [data-shaded=true]{background:#2c876c}.fraction-model label{margin-top:16px;font-weight:700;display:block}.fraction-model input{accent-color:#176b50;width:100%;min-height:44px;display:block}.review-deck .workshop-hero h1{margin:8px 0;font-size:clamp(1.8rem,5vw,2.6rem);font-weight:800;line-height:1.15}
:root{--color-bg:#f8f9f6;--color-paper:#f8f9f6;--color-paper-deep:#f0f0ec;--color-surface:#fff;--color-surface-2:#f4f5f1;--color-card:#fff;--color-ink:#282c2b;--color-label:#282c2b;--color-ink-soft:#646c69;--color-label-2:#646c69;--color-ink-faint:#737b78;--color-label-3:#737b78;--color-line:#e3e5df;--color-sep:#e3e5df;--color-fill:#eff0ec;--color-tint:#8042cb;--color-tint-bg:#f1e7ff;--color-paint-violet:#8042cb;--color-paint-green:#14836c;--color-paint-teal:#14836c;--color-paint-blue:#227da2;--color-success:#138264;--color-success-bg:#e6faf1;--color-ok:#138264;--card-border:#e5e5df;--card-shadow:0 4px 18px #3c314008;--font-display:var(--font-source-sans),var(--font-system);--font-brand:var(--font-source-sans),var(--font-system);--font-serif-brand:var(--font-source-sans),var(--font-system)}.platform-shell{min-height:100dvh;color:var(--color-ink);background:#f8f9f6}.platform-shell .grade-experience,.platform-shell .grade-experience[data-experience]{--color-bg:#f8f9f6;--color-paper:#f8f9f6;--color-surface-2:#f4f5f1;--color-ink:#282c2b;--color-label:#282c2b;--color-ink-soft:#646c69;--color-label-2:#646c69;--color-ink-faint:#737b78;--color-label-3:#737b78;--color-tint:#8042cb;--color-tint-bg:#f1e7ff;--card-border:#e5e5df;--card-shadow:0 5px 20px #3c314009;--experience-radius:22px;color:var(--color-ink);background-color:#f8f9f6;background-image:radial-gradient(580px 320px at 0 0,#fff0d780,#0000),radial-gradient(420px 280px at 100% 0,#eee5fc60,#0000);background-position:0 0;background-repeat:no-repeat;background-size:auto;background-attachment:scroll;background-origin:padding-box;background-clip:border-box}.platform-shell :is(h1,h2,h3,.practice-question),.admin-shell :is(h1,h2,h3){letter-spacing:-.035em;line-height:1.2;font-family:var(--font-source-sans),sans-serif!important}.platform-shell .grade-experience[data-experience] :is(h1,h2,h3){font-weight:700}.platform-shell :is(button,input,select,textarea),.admin-shell :is(button,input,select,textarea){font-family:inherit}.platform-shell :is(a,button,input,select,textarea,summary):focus-visible,.admin-shell :is(a,button,input,select,textarea,summary):focus-visible{outline-offset:4px;outline:3px solid #8e55d4}.platform-shell :is(button,a):disabled{cursor:not-allowed}.platform-wordmark{color:#282c2b;font:750 28px/1 var(--font-source-sans),sans-serif;letter-spacing:-1px;white-space:nowrap;align-items:center;gap:7px;display:inline-flex}.platform-wordmark.is-compact{font-size:25px}.platform-wordmark svg{color:#42bdd9;width:20px;height:20px}.platform-brand-dots{color:#b7a6cb;letter-spacing:0;font-size:20px}.platform-header{z-index:45;padding:20px 28px 0;position:relative}.platform-topbar{background:#ffffffed;border:1px solid #eeeae4;border-radius:50px;align-items:center;gap:24px;max-width:1400px;min-height:82px;margin:auto;padding:15px 24px;display:flex}.platform-brand{align-items:center;gap:15px;display:flex}.platform-brand>span{color:#77737d;letter-spacing:.06em;max-width:60px;font-size:9px;line-height:1.3}.platform-primary-nav{flex:1;justify-content:center;align-items:center;gap:5px;display:flex}.platform-primary-nav a{color:#69716e;white-space:nowrap;border-radius:20px;align-items:center;gap:7px;min-height:44px;padding:10px 12px;font-size:14px;display:flex}.platform-primary-nav a[aria-current=page]{color:#8042cb;background:#f1e7ff;font-weight:700}.platform-primary-nav a:hover{background:#f5f0fa}.platform-tools{align-items:center;gap:8px;display:flex}.platform-streak{color:#b56c11;white-space:nowrap;align-items:center;gap:5px;margin-right:8px;font-size:12px;display:flex}.platform-icon-button{color:#73777b;border-radius:50%;place-items:center;width:38px;min-height:44px;display:grid;position:relative}.platform-icon-button:hover{color:#8042cb;background:#f3edf9}.platform-notification-count{color:#42270a;text-align:center;background:#f39b26;border-radius:20px;min-width:15px;padding:1px 3px;font-size:9px;position:absolute;top:2px;right:0}.platform-tools button[aria-haspopup]{min-height:40px;box-shadow:none;background:#fbf8ff;border:1px solid #ede3f7;border-radius:24px}.platform-tools>div:last-child>button>span:not(:first-child){display:none}.platform-tools [role=menu]{max-width:calc(100vw - 32px);max-height:calc(100dvh - 110px);overflow-y:auto}.platform-mobile-context{display:none}.platform-shell .atlas-workspace-content{margin-left:0}.platform-shell .atlas-workspace .student-canvas{width:100%;max-width:1232px;margin:auto;padding:40px 36px 80px}.platform-shell .platform-context-nav{max-width:1232px;padding:26px 36px 0}.platform-shell .platform-context-nav nav a{color:#666c6a;box-shadow:none;background:#fff;border:1px solid #e6e3e9;border-radius:15px}.platform-shell .platform-context-nav nav a[aria-current=page]{color:#8147bd;background:#f0e6ff;border-color:#dcc3f7}.platform-shell .atlas-dashboard-heading{align-items:flex-start;margin:0 0 32px}.platform-shell .atlas-dashboard-heading h1{margin-top:12px;font-size:clamp(32px,3.5vw,46px);font-weight:700}.platform-dashboard-intro{color:#707773;max-width:660px;margin-top:13px;font-size:16px;line-height:1.65}.platform-shell .atlas-kicker{color:#847887;letter-spacing:.07em;font-family:inherit;font-size:11px;font-weight:650}.platform-shell .atlas-rhythm{color:#b1711d;background:#fff5df;border:1px solid #f4dba9;border-radius:20px;margin-top:8px;padding:9px 14px}.platform-shell .atlas-rhythm svg{color:#e89a21}.platform-shell .atlas-rhythm strong{font-size:20px;font-weight:700}.platform-shell .atlas-dashboard-grid{grid-template-columns:minmax(0,2fr) minmax(270px,1fr);gap:24px}.platform-shell .atlas-next{color:#282c2b;background:linear-gradient(115deg,#fff8e8,#fff 63%,#f5ebff);border:1px solid #ffdeae;border-radius:26px;padding:30px;box-shadow:0 5px 20px #48382605}.platform-shell .atlas-section-label{color:#9a6935;letter-spacing:.04em;font-family:inherit;font-size:11px}.platform-shell .atlas-next .recommendation-hero{box-shadow:none;background:0 0;border:0;border-radius:0;padding:25px 0 0}.platform-shell .atlas-next .recommendation-hero :is(h2,.text-ink){color:#282c2b;font-size:34px;font-weight:700}.platform-shell .atlas-next .recommendation-hero .text-ink-soft{color:#68716d;font-size:16px}.platform-shell .atlas-next .recommendation-hero .text-tint{color:#a16426}.platform-shell .atlas-next .recommendation-hero .bg-fill{color:#91632a;background:#fff0d4;border-radius:20px}.platform-shell .atlas-next .recommendation-hero .zehno-primary{color:#472806;background:linear-gradient(100deg,#ff9e22,#ff7526);border:0;border-radius:25px;justify-content:center;min-height:50px;font-size:16px;font-weight:750;box-shadow:0 7px 16px #ee9d2224}.platform-shell .atlas-next .recommendation-hero .zehno-primary:hover{background:linear-gradient(100deg,#ffad3c,#ff853b)}.platform-shell .atlas-progress{box-shadow:none;background:#fff;border:1px solid #e3e6de;border-radius:26px;padding:28px}.platform-shell .atlas-progress .atlas-section-label{color:#757079}.platform-shell .progress-track{stroke:#e5f5ec}.platform-shell .progress-value{stroke:#23b694}.platform-shell .atlas-progress-orbit{width:168px;margin:20px auto 10px}.platform-shell .atlas-progress-orbit strong{letter-spacing:-2px;font-size:45px;font-weight:700}.platform-shell .atlas-progress-orbit span{color:#737c77;font-family:inherit}.platform-shell .atlas-progress>p{color:#707773}.platform-shell .atlas-progress-link{color:#188d72;border-color:#e7eee8;font-weight:650}.platform-shell .atlas-mission{background:linear-gradient(115deg,#fff9e8,#fff);border:1px solid #ffe1b3;border-radius:23px;padding:25px 30px}.platform-shell .atlas-mission-count strong{color:#51422e;font-size:43px;font-weight:700}.platform-shell .atlas-mission-count>span{color:#8b7c62;font-size:21px}.platform-shell .atlas-mission-count svg{color:#e4a133}.platform-shell .atlas-mission-bar{background:#f9ebcf;height:7px}.platform-shell .atlas-mission-bar span{background:linear-gradient(90deg,#ffb42b,#fa8820)}.platform-shell .atlas-mission p{color:#806e4f}.platform-shell .atlas-evidence{background:#fff;border:1px solid #e5e1ed;border-radius:23px;gap:15px 28px;padding:25px 28px}.platform-shell .atlas-evidence strong{color:#7044a4;font-size:34px;font-weight:700}.platform-shell .atlas-evidence div span{color:#716a7a}.platform-shell .atlas-onboarding{background:linear-gradient(120deg,#fff,#fcf8ff);border:1px solid #e6dbf0;border-radius:24px;padding:30px}.platform-shell .atlas-onboarding li>span{color:#8750bd;background:#f6efff;border-color:#e0c6fc;border-radius:12px}.platform-shell .atlas-onboarding li[aria-current=step]>span{color:#fff;background:#8c51d0}.platform-shell .atlas-destinations>div{border:0;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;display:grid}.platform-shell .atlas-destinations>div>a{--tile:#f8f1ff;--tile-line:#e6d1ff;--tile-ink:#8551bb;background:linear-gradient(120deg,white,var(--tile));border:1px solid var(--tile-line);color:var(--tile-ink);border-radius:22px;gap:16px;padding:24px}.platform-shell .atlas-destinations>div>a[data-tone=mint]{--tile:#e7fcf2;--tile-line:#b8ead7;--tile-ink:#1c9178}.platform-shell .atlas-destinations>div>a[data-tone=peach]{--tile:#fff1dc;--tile-line:#ffdb9d;--tile-ink:#aa721f}.platform-shell .atlas-destinations>div>a[data-tone=sky]{--tile:#eaf8ff;--tile-line:#c0eaf7;--tile-ink:#31819e}.platform-shell .atlas-destinations>div>a:hover{padding:24px;box-shadow:0 8px 22px #4733540b}.platform-shell .atlas-destinations h3{color:#303934;font-weight:700}.platform-shell .atlas-destinations a p{color:#6e7571;margin-top:5px;line-height:1.5}.platform-shell .atlas-plus{color:#fff;background:linear-gradient(120deg,#453282,#743c85);border-radius:22px;margin-top:20px;padding:22px 25px}.platform-shell .atlas-plus>span{color:#ffe195}.platform-shell .atlas-plus p{color:#ece1f6;font-size:14px}.platform-shell .atlas-unlocked{color:#227e60;background:#edfff5;border-color:#b7eace;border-radius:20px}.platform-shell :is(.zehno-group,.zehno-card,.practice-card,.reward-board,.reward-game-card,.reward-unlock,.stem-picker,.lab-controls,.lab-notebook,.life-entry,.life-leaderboard,.workshop-tools,.study-lesson,.study-start,.study-problem,.study-summary,.study-transfer,.review-card,.readiness-check,.science-grade-picker,.science-source){background-color:#fff;border-width:1px;border-color:#e3dfea;border-radius:23px;box-shadow:0 4px 16px #3c314006}.platform-shell :is(a,button).bg-tint,.platform-shell :is(.stem-button,.atlas-cta),.platform-shell button.bg-paint-green{color:#fff;background:linear-gradient(110deg,#8f45da,#6944c8);border:0;border-radius:18px;min-height:48px;box-shadow:0 5px 12px #8347cb20}.platform-shell :is(.stem-button,.atlas-cta):hover{background:linear-gradient(110deg,#7f35ca,#5e38bd)}.platform-shell .practice-card{background:linear-gradient(140deg,#fcf6ff,#fff 55%,#fffdf4);border:1px solid #e3c5fd;border-radius:27px;box-shadow:0 7px 24px #77539610}.platform-shell .key{color:#303632;background:#fff;border:1px solid #dfd9e7;border-radius:17px;box-shadow:0 4px #ece7f0}.platform-shell .key[aria-pressed=true]:not([data-answer-state]){color:#7240a7;background:#f3e7ff;border-color:#a873e3}.platform-shell .key[data-answer-state=correct]{color:#fff;background:linear-gradient(110deg,#139b73,#108779);border-color:#0d8068;box-shadow:0 4px #0d725f}.platform-shell .key[data-answer-state=incorrect]{color:#80541c;background:#fff0d4;border-color:#e2bd70;box-shadow:0 4px #eddaa8}.platform-shell .key:hover:not(:disabled){border-color:#a873e3}.platform-shell .practice-card button[type=submit]{color:#fff;background:linear-gradient(110deg,#8f45da,#6944c8);box-shadow:0 4px #5f36a1}.platform-shell .workshop-hero{background:linear-gradient(115deg,#fff9e9,#fff 60%,#f5eaff);border-color:#efddbb;border-radius:25px}.platform-shell .workshop-hero h1{font-size:clamp(30px,4vw,44px)}.platform-shell .course-navigation a{color:#716578;background:#fff;border-color:#e3deea;border-radius:15px;font-size:14px}.platform-shell .course-navigation a[aria-current=page]{color:#7a43b6;background:#f0e4ff;border-color:#d8b9f6}.platform-shell .course-navigation a[data-course=math][aria-current=page]{color:#985e13;background:#fff3d7;border-color:#f5d195}.platform-shell .course-navigation a[data-course=biology][aria-current=page]{color:#187c62;background:#e9faf2;border-color:#aee5ce}.platform-shell .course-navigation a[data-course=physics][aria-current=page]{color:#256b8a;background:#eefaff;border-color:#bae4f3}.platform-shell .problem-topic{background:linear-gradient(135deg,#fff,#fcf9ff);border-color:#e3dfea;border-radius:21px;box-shadow:0 3px 12px #60388405}.platform-shell .problem-topic:hover{border-color:#be95e5}.platform-shell .workshop-topic-icon{background:#f0e4ff;border-radius:14px;color:#864bbb!important}.platform-shell .workshop-filters button[aria-pressed=true],.platform-shell .lab-tabs button[aria-pressed=true]{color:#7540ad;background:#f0e4ff;border-color:#bd8fe8}.platform-shell .workshop-count,.platform-shell .study-stages span{color:#795094;background:#f5eefc;border-color:#e3d4f0}.platform-shell .study-formula{color:#734998;background:#f4edff;border:1px solid #e4d2f5;border-radius:14px}.platform-shell .study-options label{background:#fff;border-color:#e0d7e9;border-radius:15px}.platform-shell .study-options label:has(:checked){background:#f4eaff;border-color:#a465d8}.platform-shell .study-options input,.platform-shell .course-mastery,.platform-shell .study-problem progress{accent-color:#9060cf}.platform-shell .study-feedback.is-correct{color:#1d735b;background:#e9fbf3;border:1px solid #b1e5d1}.platform-shell .study-feedback.is-incorrect{color:#7d6028;background:#fff5de;border:1px solid #f1d593}.platform-shell .course-video-placeholder{color:#785596;background:#fbf6ff;border-color:#dbbcef;border-radius:23px}.platform-shell .learning-sequence li{color:#7b5799;background:#f0e7fa}.platform-shell .fraction-model{color:#7846a2;background:#f6edff}.platform-shell .fraction-model-strip,.platform-shell .fraction-model-strip span{border-color:#a775d1}.platform-shell .fraction-model-strip [data-shaded=true]{background:#b487e8}.platform-shell .stem-launch-card{color:#6f458f;box-shadow:none;background:linear-gradient(120deg,#faf3ff,#f1e6ff);border:1px solid #d9bdf4;border-radius:24px}.platform-shell .stem-launch-card:first-child{color:#866025;background:linear-gradient(120deg,#fff7e5,#fff0d5);border-color:#f3d69b}.platform-shell .stem-subject-grid button{box-shadow:none;border-width:1px;border-radius:18px}.platform-shell .stem-subject-grid button[aria-pressed=true]{border-color:#a474d0;outline-color:#bc8ee6}.platform-shell .lab-bench{background:linear-gradient(130deg,#49366e,#352850);border:1px solid #dcc1f4;border-radius:23px}.platform-shell .lab-bench-label{color:#eadbf8}.platform-shell .lab-controls input[type=range]{accent-color:#9060cf}.platform-shell .investigation-reading{color:#775093;background:#f8f2ff;border-color:#dfc7f2}.platform-shell .investigation-results{background:#effbf5;border-color:#c3e9d7;border-radius:21px}.platform-shell .hero-dark{color:#fff;background:radial-gradient(at 100% 0,#9e557a55,#0000),linear-gradient(130deg,#453583,#3b2268)}.platform-shell .hero-teal,.platform-shell .tasks-hero{color:#fff;box-shadow:none;background:linear-gradient(120deg,#7045a9,#9353ba);border-color:#a06ed0;border-radius:25px}.platform-shell .learning-hero{color:#39362f;box-shadow:none;background:linear-gradient(120deg,#fff7e7,#f7efff);border:1px solid #e9d7c0;border-radius:25px}.platform-shell .student-tabbar{bottom:0;max-width:640px;padding:8px 8px max(8px,env(safe-area-inset-bottom));border:1px solid #e5d9f1;border-radius:22px 22px 0 0;inset-inline:0;box-shadow:0 -4px 20px #7042900c;background:#fffffffa!important}.platform-shell .student-tabbar a,.platform-shell .student-tabbar a>span{color:#7b8491}.platform-shell .student-tabbar a[aria-current=page]{color:#8740ce;background:#f9f3ff}.platform-shell .student-tabbar a[aria-current=page]>span{color:#8740ce}.platform-shell .student-tabbar .student-tab-icon{color:inherit;background:0 0}.zehno-login{color:#282c2b;background-color:#f8f9f6;background-image:radial-gradient(at 10% 10%,#ffe6bc88,#0000 55%),radial-gradient(at 95% 80%,#e9d2ff88,#0000 55%);background-position:0 0;background-repeat:repeat;background-size:auto;background-attachment:scroll;background-origin:padding-box;background-clip:border-box}.zehno-login>div{color:#282c2b;background:#ffffffec;border:1px solid #e8e1eb;border-radius:28px;max-width:520px;padding:38px;box-shadow:0 15px 50px #7042900b}.zehno-login h1{font-size:36px;font-weight:700}.zehno-login button[aria-haspopup]{box-shadow:none;border-color:#e7d9f3;border-radius:24px}.admin-shell{color:#303632;background:#f8f9f6}.admin-shell>div{max-width:1600px}.admin-shell aside{background:#ffffffde;border-color:#e7dfed;padding-top:28px}.admin-shell .admin-nav-link{border:1px solid #0000;border-radius:15px;font-weight:600}.admin-shell .admin-nav-link[aria-current=page]{color:#7c43ba;box-shadow:none;background:#f1e7ff;border-color:#e1ccf5}.admin-shell>div>div>header{background:#ffffffed;border:1px solid #e9e3eb;border-radius:35px;min-height:68px;margin:20px 24px 0}.admin-shell .zehno-page{max-width:1350px}.admin-shell :is(section,article).bg-white,.admin-shell .rounded-2xl.bg-white{border-color:#e7dfed;border-radius:21px;box-shadow:0 4px 16px #54345e06}.admin-shell :is(input,select,textarea){accent-color:#8953c5;border-radius:12px}@media (min-width:1024px) and (max-width:1300px){.platform-brand>span,.platform-streak{display:none}.platform-topbar{gap:16px}.platform-primary-nav a{padding-inline:9px;font-size:13px}.platform-primary-nav svg{display:none}}@media (max-width:1023px){.platform-header{padding:14px 20px 0}.platform-topbar{gap:12px;min-height:66px;padding:12px 18px}.platform-primary-nav,.platform-brand>span,.platform-streak{display:none}.platform-tools{gap:4px;margin-left:auto}.platform-icon-button{width:34px}.platform-mobile-context{color:#85778d;justify-content:space-between;align-items:center;max-width:1200px;margin:12px auto 0;padding:0 12px;font-size:11px;display:flex}.platform-mobile-context>span:last-child{color:#ab741e;align-items:center;gap:5px;display:flex}.platform-shell .atlas-workspace .student-canvas{padding:28px 26px 110px}.platform-shell .platform-context-nav{padding:20px 26px 0}}@media (max-width:640px){.platform-header{padding:12px 14px 0}.platform-topbar{border-radius:36px;gap:8px;padding:10px 13px}.platform-wordmark.is-compact{font-size:23px}.platform-wordmark{gap:5px}.platform-wordmark svg{width:17px;height:17px}.platform-brand-dots{display:none}.platform-tools{gap:3px}.platform-tools button[aria-haspopup]{min-width:36px;min-height:36px;padding:6px}.platform-tools button[aria-haspopup]>svg{width:14px}.platform-tools>div:last-child>button{padding:3px}.platform-icon-button{width:30px;min-height:40px}.platform-shell .atlas-workspace .student-canvas{padding:26px 18px 115px}.platform-shell .platform-context-nav{padding:18px 18px 0}.platform-shell .platform-context-nav nav a{min-height:42px;padding:9px 12px;font-size:12px}.platform-shell .atlas-dashboard-heading{margin-bottom:24px;display:block}.platform-shell .atlas-dashboard-heading h1{margin-top:8px;font-size:33px}.platform-dashboard-intro{margin-top:10px;font-size:14px;line-height:1.6}.platform-shell .atlas-rhythm{display:none}.platform-shell .atlas-dashboard-grid{grid-template-columns:minmax(0,1fr);gap:16px}.platform-shell .atlas-dashboard-grid>*{grid-column:auto}.platform-shell .atlas-next{border-radius:23px;padding:23px}.platform-shell .atlas-next .recommendation-hero{padding-top:20px}.platform-shell .atlas-next .recommendation-hero :is(h2,.text-ink){font-size:28px}.platform-shell .atlas-next .recommendation-hero .text-ink-soft{font-size:14px}.platform-shell .atlas-progress{border-radius:23px;grid-template-columns:1fr 110px;padding:22px}.platform-shell .atlas-progress-orbit{width:110px;margin:5px 0}.platform-shell .atlas-progress-orbit strong{font-size:34px}.platform-shell .atlas-progress-orbit small{font-size:17px}.platform-shell .atlas-mission{padding:22px}.platform-shell .atlas-mission-count{margin:14px 0}.platform-shell .atlas-mission-count strong{font-size:36px}.platform-shell .atlas-evidence{padding:22px}.platform-shell .atlas-evidence>div{width:calc(50% - 14px)}.platform-shell .atlas-evidence strong{font-size:31px}.platform-shell .atlas-onboarding{gap:24px;padding:23px}.platform-shell .atlas-destinations>div{grid-template-columns:1fr;gap:12px}.platform-shell .atlas-destinations>div>a,.platform-shell .atlas-destinations>div>a:hover{padding:20px}.platform-shell .atlas-plus{gap:12px;padding:22px}.platform-shell .atlas-plus p{flex-basis:75%}.platform-shell .workshop-hero{padding:24px 20px}.platform-shell .workshop-hero h1{font-size:29px}.platform-shell .problem-workshop{padding-inline:0}.platform-shell :is(.study-lesson,.study-start,.study-problem,.study-summary,.study-transfer){border-radius:20px;padding:22px 18px}.platform-shell .course-navigation{gap:7px}.platform-shell .course-navigation a{padding:9px 12px;font-size:12px}.platform-shell .practice-card{border-radius:24px}.platform-shell .stem-launch-card{border-radius:22px;padding:22px}.platform-shell .stem-launch-card h3{font-size:24px}.zehno-login>div{border-radius:25px;padding:27px 23px}.zehno-login h1{font-size:31px}.admin-shell>div>div>header{border-radius:22px;margin:12px 14px 0;padding:10px 15px}.admin-shell>div>div>header>div:first-child{max-width:45%}.admin-shell>div>div>header p{letter-spacing:.05em;font-size:9px}.admin-shell aside{padding-top:18px}}@media (prefers-reduced-motion:reduce){.platform-shell *{scroll-behavior:auto!important;transition:none!important}}@media print{.platform-header,.platform-context-nav,.platform-shell .student-tabbar{display:none!important}.platform-shell .atlas-workspace .student-canvas{max-width:none;padding:0}}.platform-shell .grade-experience .atlas-progress{border-width:1px;box-shadow:0 4px 16px #3c314006}.platform-shell .atlas-destinations .atlas-plus p{color:#efe5fa}.platform-tools>div:last-child>button>span:first-child{border-radius:50%;display:inline-grid}.platform-tools>div:last-child>button>svg{display:none}.platform-shell :is(a,button)[class~="bg-[#0E1A1F]"],.admin-shell :is(a,button)[class~="bg-[#0E1A1F]"]{color:#fff;background:#8042cb;border-radius:15px}.platform-shell .course-mastery{appearance:none;background:#eee7f5;border:0;border-radius:10px;overflow:hidden}.platform-shell .course-mastery::-webkit-progress-bar{background:#eee7f5;border-radius:10px}.platform-shell .course-mastery::-webkit-progress-value{background:#a56be0;border-radius:10px}.platform-shell .course-mastery::-moz-progress-bar{background:#a56be0;border-radius:10px}.platform-shell .grade-experience .student-nav-link[aria-current=page] .student-tab-icon{color:#8042cb;background:#eee0ff}.platform-shell .practice-card button[class~="bg-[#0C7B74]"]{color:#fff;background:linear-gradient(110deg,#8f45da,#6944c8);box-shadow:0 5px #5f36a1}.platform-shell .practice-card button[class~="bg-[#0C7B74]"]:active{box-shadow:none}
.platform-shell .home-dashboard{grid-template-columns:minmax(0,1fr);gap:28px;display:grid}.platform-shell .home-dashboard>*{min-width:0}.platform-shell .home-heading{justify-content:space-between;align-items:center;gap:24px;display:flex}.platform-shell .home-heading h1{margin:6px 0 8px;font-size:36px}.platform-shell .home-heading p:not(.home-eyebrow){color:#69716d;font-size:16px;line-height:1.5}.platform-shell .home-eyebrow{color:#626f65;letter-spacing:.09em;font-size:11px;font-weight:700}.platform-shell .home-plan-link{color:#7543af;white-space:nowrap;background:#fff;border:1px solid #e4daef;border-radius:14px;justify-content:center;align-items:center;gap:9px;min-height:46px;padding:11px 16px;font-size:14px;font-weight:650;display:inline-flex}.platform-shell .home-plan-link:hover{background:#f5effc}.platform-shell .home-dashboard .home-hero{min-height:340px;box-shadow:none;background:#f1f6ec;border:1px solid #e2e9d8;border-radius:26px;grid-column:auto;padding:0;position:relative;overflow:hidden}.platform-shell .home-hero:after{display:none}.platform-shell .home-hero .home-recommendation{z-index:2;width:62%;box-shadow:none;background:0 0;border:0;padding:36px 40px;display:block;position:relative}.platform-shell .home-hero .recommendation-art,.platform-shell .home-hero .recommendation-icon{display:none}.platform-shell .home-hero .recommendation-content{width:100%}.platform-shell .home-hero .home-recommendation h2{color:#263c30;letter-spacing:-.035em;max-width:510px;margin-top:9px;font-size:36px;line-height:1.12}.platform-shell .home-hero .home-recommendation .text-tint{color:#48724e;font-size:12px;font-weight:700}.platform-shell .home-hero .home-recommendation .text-ink-soft{color:#536358;max-width:49ch;font-size:15px;line-height:1.65}.platform-shell .home-hero .home-recommendation .bg-fill{color:#476040;background:#e5ecd9;font-size:12px}.platform-shell .home-hero .home-recommendation .zehno-primary{color:#fff;background:#7544bb;border-radius:14px;width:fit-content;min-width:240px;padding:13px 24px;font-size:16px;font-weight:650;box-shadow:0 4px 10px #7544bb16}.platform-shell .home-hero .home-recommendation .zehno-primary:hover{background:#6434a8}.platform-shell .home-hero-art{pointer-events:none;width:49%;position:absolute;inset:0 0 0 auto;-webkit-mask-image:linear-gradient(90deg,#0000,#000 30%);mask-image:linear-gradient(90deg,#0000,#000 30%)}.platform-shell .home-hero-art img{object-fit:cover;object-position:76% center}.platform-shell .home-diagnostic-benefits{flex-wrap:wrap;gap:8px 18px;margin-top:19px;padding:0;list-style:none;display:flex}.platform-shell .home-diagnostic-benefits li{color:#476040;align-items:center;gap:7px;font-size:12px;line-height:1.4;display:flex}.platform-shell .home-stats{grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;display:grid}.platform-shell .home-stat{background:#fff;border:1px solid #e4e7df;border-radius:18px;align-items:center;gap:14px;padding:17px 20px;display:flex}.platform-shell .home-stat-icon{border-radius:14px;flex-shrink:0;place-items:center;width:46px;height:46px;display:grid}.platform-shell .home-stat-icon[data-tone=peach]{color:#bd6d24;background:#fff0dc}.platform-shell .home-stat-icon[data-tone=mint]{color:#168365;background:#e7f6ed}.platform-shell .home-stat-icon[data-tone=lilac]{color:#8050ba;background:#f1e9fc}.platform-shell .home-stat-icon[data-tone=sand]{color:#a17c13;background:#faf3d8}.platform-shell .home-stat strong{letter-spacing:-.03em;font-size:25px;line-height:1.1;display:block}.platform-shell .home-stat div>span{color:#68716b;margin-top:5px;font-size:13px;display:block}.platform-shell .home-study-grid{grid-template-columns:minmax(0,1.65fr) minmax(0,1fr);gap:22px;display:grid}.platform-shell :is(.home-continue,.home-daily){background:#fff;border:1px solid #e3e7de;border-radius:22px;min-width:0;padding:27px 30px}.platform-shell :is(.home-continue,.home-daily)>header{color:#8b9690;justify-content:space-between;align-items:center;gap:16px;display:flex}.platform-shell :is(.home-continue,.home-daily)>header h2{color:#303b34;font-size:20px}.platform-shell .home-continue>.home-eyebrow{margin-top:27px}.platform-shell .home-continue h3{color:#35483d;margin:9px 0 23px;font-size:26px}.platform-shell .home-topic-progress{color:#738078;justify-content:space-between;gap:10px;font-size:13px;display:flex}.platform-shell .home-topic-progress strong{color:#4c7457}.platform-shell .home-progress-track{background:#edf1e8;border-radius:10px;height:8px;margin-top:11px;overflow:hidden}.platform-shell .home-progress-track>span{border-radius:inherit;background:#70a879;height:100%;display:block}.platform-shell .home-button{color:#386b46;background:#edf6eb;border:1px solid #d8e7d7;border-radius:12px;justify-content:center;align-items:center;gap:14px;min-height:46px;margin-top:23px;padding:11px 20px;font-size:14px;font-weight:650;display:inline-flex}.platform-shell .home-button:hover{background:#deeedc}.platform-shell .home-course-progress{color:#65716a;border-top:1px solid #edf0e9;justify-content:space-between;gap:10px;margin-top:25px;padding-top:19px;font-size:12px;display:flex}.platform-shell .home-course-progress strong{color:#59665c}.platform-shell .home-muted{color:#687369;font-size:14px;line-height:1.6}.platform-shell .home-daily>.home-muted{margin-top:10px;font-size:13px}.platform-shell .home-daily{text-align:center;background:#fdfefb}.platform-shell .home-daily-ring{width:140px;height:140px;margin:19px auto 13px;position:relative}.platform-shell .home-daily-ring svg{fill:none;stroke-width:9px;width:100%;height:100%;transform:rotate(-90deg)}.platform-shell .home-ring-track{stroke:#eaf0df}.platform-shell .home-ring-value{stroke:#79a354;stroke-linecap:round}.platform-shell .home-daily-ring>div{flex-direction:column;justify-content:center;align-items:center;gap:5px;display:flex;position:absolute;inset:0}.platform-shell .home-daily-ring strong{color:#354631;letter-spacing:-.03em;font-size:36px;line-height:1}.platform-shell .home-daily-ring small{color:#687852;font-size:19px}.platform-shell .home-daily-ring span{color:#627454;font-size:11px}.platform-shell .home-goal-caption{color:#647756;margin-bottom:10px;font-size:13px}.platform-shell .home-text-link{color:#7747b4;align-items:center;gap:8px;min-height:44px;font-size:14px;font-weight:650;display:inline-flex}.platform-shell .home-text-link:hover{color:#592b92;text-underline-offset:4px;text-decoration:underline}.platform-shell .home-section-heading{justify-content:space-between;align-items:center;gap:20px;margin-bottom:19px;display:flex}.platform-shell .home-section-heading h2{color:#303b34;font-size:25px}.platform-shell .home-section-heading p{color:#667068;margin-top:7px;font-size:14px;line-height:1.5}.platform-shell .home-community-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;display:grid}.platform-shell .home-community-card{background:#ebf5ea;border:1px solid #dbe9dd;border-radius:22px;align-items:flex-start;gap:19px;min-width:0;padding:26px;display:flex}.platform-shell .home-community-card[data-tone=lilac]{background:#f3edfa;border-color:#e7daf3}.platform-shell .home-community-icon{color:#478253;background:#fff9;border-radius:17px;flex-shrink:0;place-items:center;width:58px;height:58px;display:grid}.platform-shell .home-community-card[data-tone=lilac] .home-community-icon{color:#8155b0}.platform-shell .home-community-card h3{color:#344737;font-size:22px}.platform-shell .home-community-card p{color:#5f6e61;margin-top:9px;font-size:14px;line-height:1.6}.platform-shell .home-community-card[data-tone=lilac] h3{color:#534464}.platform-shell .home-community-card[data-tone=lilac] p{color:#70607f}.platform-shell .home-card-cta{color:#47774e;align-items:center;gap:10px;margin-top:17px;font-size:14px;font-weight:650;display:inline-flex}.platform-shell .home-community-card[data-tone=lilac] .home-card-cta{color:#7b4da9}.platform-shell :is(.home-community-card,.home-course-card,.home-reward-card){transition:border-color .15s,box-shadow .15s}.platform-shell :is(.home-community-card,.home-course-card,.home-reward-card):hover{border-color:#b499d0;box-shadow:0 5px 18px #4733540a}.platform-shell .home-course-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;display:grid}.platform-shell .home-course-card{background:#fff;border:1px solid #e4e8df;border-radius:20px;flex-direction:column;align-items:flex-start;min-width:0;min-height:220px;padding:24px;display:flex;position:relative}.platform-shell .home-course-card[data-current=true]{background:#f7fbf1;border-color:#abc68b}.platform-shell .home-course-grade{color:#99ae83;justify-content:space-between;align-items:center;width:100%;margin-bottom:16px;display:flex}.platform-shell .home-course-grade>span{color:#627e47;background:#eef3e7;border-radius:13px;place-items:center;width:42px;height:42px;font-size:22px;font-weight:700;display:grid}.platform-shell .home-course-card:nth-child(3n+2) .home-course-grade{color:#b59ccc}.platform-shell .home-course-card:nth-child(3n+2) .home-course-grade>span{color:#8b63ad;background:#f3edf8}.platform-shell .home-course-card:nth-child(3n) .home-course-grade{color:#c2aa82}.platform-shell .home-course-card:nth-child(3n) .home-course-grade>span{color:#a68858;background:#faf2e7}.platform-shell .home-course-card h3{color:#354039;font-size:24px}.platform-shell .home-course-current{color:#547537;background:#e3efd3;border-radius:20px;padding:5px 9px;font-size:10px;font-weight:650;position:absolute;top:28px;right:21px}.platform-shell .home-course-card[data-current=true] .home-course-grade>svg{visibility:hidden}.platform-shell .home-course-card>p{color:#646f66;margin:10px 0 19px;font-size:13px;line-height:1.6}.platform-shell .home-course-meta{color:#627751;border-top:1px solid #edf0e8;justify-content:space-between;align-items:center;gap:10px;width:100%;margin-top:auto;padding-top:14px;font-size:12px;font-weight:600;display:flex}.platform-shell .home-start-path{background:#fcfaff;border:1px solid #e5ddef;border-radius:22px;padding:26px 30px}.platform-shell .home-start-path h2{margin-bottom:7px;font-size:22px}.platform-shell .home-start-path ol{grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;margin-top:23px;padding:0;list-style:none;display:grid}.platform-shell .home-start-path li{color:#756882;align-items:flex-start;gap:12px;display:flex}.platform-shell .home-start-path li>span{background:#fff;border:1px solid #e6daef;border-radius:12px;flex-shrink:0;place-items:center;width:35px;height:35px;font-size:14px;display:grid}.platform-shell .home-start-path li[aria-current=step]>span{color:#fff;background:#8652bb;border-color:#8652bb}.platform-shell .home-start-path li[data-complete=true]>span{color:#438355;background:#eaf5e8;border-color:#d4e9ce}.platform-shell .home-start-path li strong{color:#554b60;font-size:14px}.platform-shell .home-start-path li p{margin-top:4px;font-size:12px;line-height:1.5}.platform-shell .home-dashboard .stem-launch{margin:0}.platform-shell .home-dashboard .stem-launch header h2{font-size:25px}.platform-shell .home-dashboard .stem-launch-card{border-radius:20px}.platform-shell .home-reward-grid{grid-template-columns:repeat(auto-fit,minmax(min(100%,420px),1fr));gap:20px;display:grid}.platform-shell .home-reward-card{background:#fff9ef;border:1px solid #eadfc9;border-radius:22px;align-items:flex-start;gap:20px;padding:26px;display:flex}.platform-shell .home-reward-card>svg{color:#b78c37;flex-shrink:0}.platform-shell .home-reward-card>div{flex:1;min-width:0}.platform-shell .home-reward-card h2{color:#594a32;font-size:21px}.platform-shell .home-reward-card p{color:#7b6747;margin-top:8px;font-size:14px;line-height:1.6}.platform-shell .home-reward-card .home-card-cta{color:#9a7434}.platform-shell .home-coin-badge{color:#907126;background:#f6eacb;border-radius:20px;align-items:center;gap:6px;padding:6px 10px;font-size:13px;font-weight:650;display:flex}@media (max-width:1023px){.platform-shell .home-hero .home-recommendation{width:67%;padding:30px}.platform-shell .home-hero .home-recommendation h2{font-size:32px}.platform-shell .home-hero-art{width:43%}.platform-shell .home-stat{gap:10px;padding:16px}.platform-shell .home-study-grid{grid-template-columns:minmax(0,1.3fr) minmax(0,1fr)}.platform-shell :is(.home-continue,.home-daily){padding:24px}.platform-shell .home-community-card{gap:14px;padding:22px}.platform-shell .home-community-icon{width:46px;height:46px}}@media (max-width:767px){.platform-shell .home-dashboard{gap:22px}.platform-shell .home-heading{align-items:flex-start;gap:12px}.platform-shell .home-heading h1{font-size:29px}.platform-shell .home-heading p:not(.home-eyebrow){font-size:14px}.platform-shell .home-plan-link{border-radius:13px;gap:0;width:44px;min-width:44px;padding:10px;font-size:0}.platform-shell .home-plan-link>svg:last-child{display:none}.platform-shell .home-dashboard .home-hero{min-height:0}.platform-shell .home-hero-art{display:none}.platform-shell .home-hero .home-recommendation{width:100%;padding:26px}.platform-shell .home-hero .home-recommendation h2{font-size:30px}.platform-shell .home-hero .home-recommendation .zehno-primary{width:100%;min-width:0}.platform-shell .home-stats{grid-template-columns:repeat(2,minmax(0,1fr));gap:11px}.platform-shell .home-stat{padding:14px}.platform-shell .home-stat-icon{border-radius:12px;width:38px;height:38px}.platform-shell .home-stat strong{font-size:23px}.platform-shell .home-stat div>span{font-size:12px}.platform-shell .home-study-grid,.platform-shell .home-community-grid{grid-template-columns:1fr;gap:16px}.platform-shell .home-continue h3{font-size:24px}.platform-shell .home-daily{text-align:left;grid-template-columns:1fr 120px;column-gap:12px;display:grid}.platform-shell .home-daily>header{grid-column:1/-1}.platform-shell .home-daily-ring{grid-area:2/2/5;width:120px;height:120px;margin:16px 0 0}.platform-shell .home-daily>.home-muted{margin-top:20px}.platform-shell .home-daily>.home-text-link{align-self:end;font-size:13px}.platform-shell .home-goal-caption{margin:10px 0 0}.platform-shell .home-section-heading{align-items:flex-start;gap:12px}.platform-shell .home-section-heading h2,.platform-shell .home-dashboard .stem-launch header h2{font-size:23px}.platform-shell .home-section-heading p{font-size:13px}.platform-shell .home-section-heading>.home-text-link{white-space:nowrap;font-size:12px}.platform-shell .home-course-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.platform-shell .home-course-card{min-height:225px;padding:18px}.platform-shell .home-course-card h3{font-size:22px}.platform-shell .home-course-card>p{font-size:12px}.platform-shell .home-course-current{text-align:center;max-width:85px;padding:4px 6px;font-size:9px;top:20px;right:13px}.platform-shell .home-course-grade>span{width:36px;height:36px;font-size:20px}.platform-shell .home-start-path{padding:24px}.platform-shell .home-start-path ol{grid-template-columns:1fr;gap:18px}.platform-shell .home-community-card h3{font-size:22px}.platform-shell .home-reward-card{flex-wrap:wrap;gap:14px;padding:22px}.platform-shell .home-reward-card h2{font-size:20px}}@media (max-width:359px){.platform-shell .home-hero .home-recommendation{padding:22px}.platform-shell .home-hero .home-recommendation h2{font-size:27px}.platform-shell .home-stat{gap:8px;padding:12px}.platform-shell .home-stat-icon{width:32px;height:36px}.platform-shell .home-stat div>span{font-size:11px}.platform-shell .home-daily{grid-template-columns:1fr 105px}.platform-shell .home-daily-ring{width:105px;height:105px}.platform-shell .home-daily-ring strong{font-size:30px}.platform-shell .home-course-grid{grid-template-columns:1fr}.platform-shell .home-course-card{min-height:200px}.platform-shell .home-section-heading{flex-wrap:wrap}}
.parent-workspace,.parent-login{color:#172c2a;min-height:100dvh;font-family:var(--font-source-sans),sans-serif;background:#f5f7f3}.parent-workspace button,.parent-workspace input,.parent-login a{outline-offset:4px}.parent-header{border-bottom:1px solid #dfe7df;justify-content:space-between;align-items:center;gap:14px;max-width:1140px;margin:auto;padding:24px 28px;display:flex}.parent-header-label{color:#52655e;align-items:center;gap:9px;font-size:15px;display:flex}.parent-main{max-width:1100px;margin:auto;padding:38px 28px 40px}.parent-hero{background:#e7efe4;border:1px solid #d7e4d4;border-radius:28px;justify-content:space-between;align-items:center;gap:30px;padding:32px 36px;display:flex}.parent-eyebrow{letter-spacing:1.6px;color:#527161;font-size:12px;font-weight:800}.parent-hero h1{font:800 clamp(30px,4vw,47px)/1.14 var(--font-nunito),sans-serif;letter-spacing:-1.7px;margin:12px 0 18px}.parent-hero h1 em{color:#087567;font-style:normal}.parent-hero p:last-child{color:#52655e;max-width:58ch;font-size:17px;line-height:1.55}.parent-hero-mark{color:#265632;background:#d1e998;border-radius:50%;flex-direction:column;flex-shrink:0;justify-content:center;align-items:center;gap:10px;width:164px;height:164px;display:flex;transform:rotate(7deg)}.parent-hero-mark svg{stroke-width:1.5px;width:70px;height:70px}.parent-hero-mark span{font-size:14px;font-weight:700}.parent-period{color:#546760;align-items:center;gap:9px;margin:28px 0 18px;font-size:14px;display:flex}.parent-child-list{gap:24px;display:grid}.parent-child{background:#fff;border:1px solid #dfe7df;border-radius:26px;padding:28px;box-shadow:0 8px 24px #23433705}.parent-child-heading{align-items:center;gap:15px;margin-bottom:24px;display:flex}.parent-child-heading h2{font:800 28px/1.2 var(--font-nunito),sans-serif}.parent-child-heading p{color:#6b7a72;margin-top:4px;font-size:14px}.parent-child-badge{color:#43614d;background:#eff4eb;border-radius:20px;margin-left:auto;padding:7px 12px;font-size:12px;font-weight:700}.parent-stats{grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;display:grid}.parent-stats>div{background:#fafbf8;border:1px solid #e6ece6;border-radius:18px;padding:17px 20px}.parent-stats svg{color:#718778;width:18px;height:18px;margin-bottom:9px}.parent-stats strong{font:800 32px/1.2 var(--font-nunito),sans-serif;display:block}.parent-stats small{color:#859386;font-size:16px}.parent-stats span{color:#5e7064;margin-top:5px;font-size:13px;display:block}.parent-evidence{color:#6e7d73;margin:13px 0 22px;font-size:12px;line-height:1.5}.parent-trend{color:#24614b;background:#edf6f0;border-radius:12px;align-items:flex-start;gap:8px;margin:-10px 0 20px;padding:11px 13px;font-size:13px;font-weight:650;line-height:1.5;display:flex}.parent-trend svg{flex-shrink:0;margin-top:1px}.parent-trend[data-direction=down]{color:#836120;background:#fff6e6}.parent-trend[data-direction=steady]{color:#52655e;background:#f1f5ef}.parent-trend-muted{color:#52655e;background:#f1f5ef;font-weight:500;display:block}.parent-report-grid{grid-template-columns:1fr 1fr;gap:14px;display:grid}.parent-report-block{border-radius:18px;padding:21px}.parent-report-block.strength{color:#24614b;background:#edf6f0}.parent-report-block.support{color:#836120;background:#fff6e6}.parent-report-block h3{margin:10px 0 12px;font-size:13px;font-weight:700}.parent-report-block strong{font:800 19px/1.3 var(--font-nunito),sans-serif;margin-bottom:7px;display:block}.parent-report-block p{font-size:14px;line-height:1.5}.parent-next{background:#f8faf5;border:1px solid #cfe0d5;border-radius:18px;align-items:flex-start;gap:16px;margin-top:17px;padding:23px;display:flex}.parent-section-icon{color:#327652;background:#e1efdb;border-radius:13px;flex-shrink:0;place-items:center;width:43px;height:43px;display:grid}.parent-section-icon svg{width:22px;height:22px}.parent-next h3{font:800 21px/1.3 var(--font-nunito),sans-serif;margin:7px 0 9px}.parent-next p:not(.parent-eyebrow){color:#52695b;margin-bottom:12px;font-size:15px;line-height:1.55}.parent-small{color:#6b7a72;font-size:12px;line-height:1.6}.parent-mastery{margin-top:20px;font-size:14px}.parent-mastery ul{margin:8px 0 0 20px;list-style:outside}.parent-diagnostic{margin-top:16px}.parent-encouragement{color:#587060;border-left:3px solid #cdddca;margin:22px 0 18px;padding:6px 0 6px 14px;font-size:14px;font-style:italic}.parent-unlink{color:#748379;font-size:12px}.parent-unlink>button{text-underline-offset:3px;min-height:36px;text-decoration:underline}.parent-unlink>div{gap:16px;display:flex}.parent-unlink>div button{min-height:36px;font-weight:700}.parent-unlink>p{color:#ab3838}.parent-connect{background:#fff;border:1px solid #dfe7df;border-radius:24px;align-items:flex-start;gap:18px;margin-top:26px;padding:28px;display:flex}.parent-connect-body{flex:1;min-width:0}.parent-connect h2{font:800 24px/1.25 var(--font-nunito),sans-serif}.parent-connect-body>p:not(.parent-small):not(.parent-error){color:#5f7065;max-width:65ch;margin:10px 0 18px;font-size:15px;line-height:1.55}.parent-connect-form{align-items:flex-end;gap:12px;max-width:580px;margin-bottom:10px;display:flex}.parent-connect-form>div{flex:1;min-width:0}.parent-connect-form label{margin-bottom:6px;font-size:12px;font-weight:700;display:block}.parent-connect-form input{letter-spacing:2px;background:#fcfdfb;border:1px solid #cad7c9;border-radius:12px;width:100%;min-height:48px;padding:12px 14px;font-size:18px}.parent-connect-form button{color:#fff;background:#08776a;border-radius:12px;align-items:center;gap:10px;min-height:48px;padding:12px 20px;font-weight:700;display:inline-flex}.parent-connect-form button:disabled{opacity:.5}.parent-error{color:#a43d35;margin-top:12px;font-size:14px;line-height:1.5}.parent-link-success{color:#24734f;margin-top:12px;font-size:14px;font-weight:700}.parent-privacy{color:#6a7d70;align-items:flex-start;gap:10px;margin:24px 4px;font-size:12px;line-height:1.6;display:flex}.parent-privacy svg{flex-shrink:0}.parent-privacy a{text-underline-offset:3px;text-decoration:underline}.parent-footer{color:#6b7a72;border-top:1px solid #dfe7df;justify-content:space-between;gap:18px;margin-top:30px;padding-top:18px;font-size:12px;display:flex}.parent-footer a{color:#257263;min-height:36px;font-weight:700}.parent-empty{background:#fff;border:1px dashed #c4d4c2;border-radius:24px;max-width:100%;padding:30px}.parent-empty h2{font:800 25px/1.3 var(--font-nunito),sans-serif;max-width:35ch;margin:16px 0 12px}.parent-empty p{color:#607163;max-width:62ch;font-size:16px;line-height:1.6}.parent-empty a{color:#087567;align-items:center;min-height:44px;margin-top:12px;font-weight:700;display:inline-flex}.parent-skip{z-index:50;background:#fff;border:2px solid #087567;padding:12px;position:absolute;top:-80px;left:16px}.parent-skip:focus{top:10px}.parent-login{place-items:center;padding:32px 20px;display:grid}.parent-login-card{background:#fff;border:1px solid #dfe7df;border-radius:28px;width:100%;max-width:500px;padding:34px}.parent-login-icon{color:#377653;background:#e4efdf;border-radius:20px;place-items:center;width:60px;height:60px;margin:30px 0 18px;display:grid}.parent-login h1{font:800 32px/1.2 var(--font-nunito),sans-serif;letter-spacing:-.8px;margin:12px 0 16px}.parent-lead{color:#607163;font-size:16px;line-height:1.6}.parent-login ul{gap:14px;margin:26px 0;display:grid}.parent-login li{align-items:flex-start;gap:10px;font-size:15px;display:flex}.parent-login li svg{color:#37865e;flex-shrink:0;margin-top:2px}.parent-login .parent-small{margin-top:20px}.parent-login .parent-small a{text-decoration:underline}.parent-demo-link{text-align:center;color:#247462;border:1px solid #dce5d7;border-radius:14px;margin-top:14px;padding:12px 15px;font-size:14px;font-weight:700;display:block}.parent-back{color:#5c7060;align-items:center;gap:8px;min-height:44px;margin-top:15px;font-size:14px;display:inline-flex}@media (max-width:640px){.parent-header{padding:18px}.parent-header-label{display:none}.parent-main{padding:22px 16px 32px}.parent-hero{padding:24px}.parent-hero-mark{display:none}.parent-hero h1{letter-spacing:-1px;font-size:34px}.parent-hero p:last-child{font-size:15px}.parent-child{padding:19px}.parent-child-badge{display:none}.parent-child-heading h2{font-size:25px}.parent-stats{gap:7px}.parent-stats>div{padding:13px 10px}.parent-stats strong{font-size:26px}.parent-stats span{font-size:11px;line-height:1.3}.parent-report-grid{grid-template-columns:1fr}.parent-report-block{padding:18px}.parent-next{gap:12px;padding:18px}.parent-next .parent-section-icon{border-radius:10px;width:32px;height:32px}.parent-next h3{font-size:19px}.parent-next p:not(.parent-eyebrow){font-size:14px}.parent-connect{gap:12px;padding:20px}.parent-connect>.parent-section-icon{display:none}.parent-connect h2{font-size:22px}.parent-connect-form{flex-wrap:wrap}.parent-connect-form>div{flex-basis:100%}.parent-connect-form button{justify-content:center;width:100%}.parent-footer{flex-direction:column;gap:5px}.parent-login-card{padding:26px}.parent-login h1{font-size:29px}.parent-empty{padding:24px}.parent-empty h2{font-size:23px}}
.subject-adventures{margin-top:24px;container:subject-choices/inline-size}.subject-adventure-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;display:grid}.subject-adventure-card{--adventure-color:#fff3d5;color:#342b46;text-align:left;cursor:pointer;background:#fff;border:2px solid #ece6dc;border-radius:22px;flex-direction:column;min-width:0;padding:0;transition:transform .18s,border-color .18s,box-shadow .18s;display:flex;position:relative;overflow:hidden;box-shadow:0 4px #ede9e2}.subject-adventure-card[data-subject=physics]{--adventure-color:#e6f4f7}.subject-adventure-card[data-subject=chemistry]{--adventure-color:#f3eafb}.subject-adventure-card[data-subject=biology]{--adventure-color:#eaf3df}.subject-adventure-card[data-subject=computing]{--adventure-color:#ffeddf}.subject-adventure-card[data-subject=engineering]{--adventure-color:#fff0db}.subject-adventure-art{aspect-ratio:3/2;background:var(--adventure-color);width:100%;display:block;position:relative;overflow:hidden}.subject-adventure-image{object-fit:cover;transition:transform .25s}.subject-adventure-caption{flex-direction:column;flex:1;gap:3px;padding:15px 17px 17px;display:flex}.subject-adventure-caption strong{font-family:var(--font-nunito), sans-serif;overflow-wrap:anywhere;font-size:19px;font-weight:850;line-height:1.3}.subject-adventure-tagline{color:#746880;font-size:14px;line-height:1.4}.subject-adventure-soon{color:#72637d;background:#f4f1f7;border-radius:6px;align-self:start;margin-top:6px;padding:3px 8px;font-size:11px;font-weight:650;line-height:1.4}.subject-adventure-toggle{color:#887294;background:#fffffff2;border:1px solid #e0d5e6;border-radius:50%;place-items:center;width:32px;height:32px;display:grid;position:absolute;top:12px;right:12px;box-shadow:0 2px 6px #513d5910}.subject-adventure-card[aria-pressed=true]{border-color:#9561d3;box-shadow:0 4px #dbc7f0,0 0 0 2px #f5ecff}.subject-adventure-card[aria-pressed=true] .subject-adventure-toggle{color:#fff;background:#8550c4;border-color:#8550c4}.subject-adventure-card:focus-visible{outline-offset:5px;outline:3px solid #8550c4}.subject-adventure-card:disabled{cursor:wait}.subject-adventure-card[data-subject=english]{cursor:default}.subject-adventure-card[data-subject=english] .subject-adventure-art{color:#526f68;background:#edf3ef;place-items:center;display:grid}@media (hover:hover) and (prefers-reduced-motion:no-preference){.subject-adventure-card:not(:disabled):hover{border-color:#bba2d4;transform:translateY(-4px)}.subject-adventure-card:not(:disabled):hover .subject-adventure-image{transform:scale(1.035)}}@media (prefers-reduced-motion:no-preference){.subject-adventure-card:not(:disabled):active{transform:translateY(1px)}.subject-adventure-card:focus-visible .subject-adventure-image{transform:scale(1.035)}}.subject-adventure-picker .subject-adventure-kicker{color:#8955b2;letter-spacing:1.2px;text-transform:uppercase;align-items:center;gap:7px;font-size:11px;font-weight:750;display:flex}.subject-adventure-picker .subject-adventure-intro{font-size:16px;line-height:1.5}.subject-adventure-picker .stem-subject-links{gap:10px}.subject-adventure-picker .stem-subject-links>:is(a,.stem-planned){border-radius:14px;flex:0 auto;gap:28px;min-width:0;padding:11px 16px}.subject-adventure-picker .stem-subject-links>a{background:#faf7ff;border-color:#e4d9f0}.subject-adventure-picker .stem-subject-links>a:hover{border-color:#a581cc}@container subject-choices (max-width:650px){.subject-adventure-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.subject-adventure-caption{padding:12px 13px 14px}.subject-adventure-caption strong{font-size:17px}.subject-adventure-toggle{width:28px;height:28px;top:9px;right:9px}}@container subject-choices (max-width:360px){.subject-adventure-caption{padding:11px 10px 13px}.subject-adventure-caption strong{font-size:15px}.subject-adventure-tagline{font-size:12px}.subject-adventure-soon{padding:3px 5px;font-size:10px}}@container subject-choices (max-width:260px){.subject-adventure-grid{grid-template-columns:minmax(0,1fr)}}@media (prefers-reduced-motion:reduce){.subject-adventure-card,.subject-adventure-image{transition:none}}
.platform-shell .student-course-header{background:var(--color-surface);padding:20px 24px}.platform-shell .student-course-header h1{font-size:clamp(28px,3vw,36px);line-height:1.2}.platform-shell .student-grade-picker{padding:8px 20px}.student-grade-picker summary{cursor:pointer;justify-content:space-between;align-items:center;gap:16px;min-height:48px;font-weight:700;list-style:none;display:flex}.student-grade-picker summary::-webkit-details-marker{display:none}.student-grade-picker summary>span:last-child{color:var(--color-tint);white-space:nowrap;align-items:center;gap:12px;display:inline-flex}.student-grade-picker summary>span:last-child:after{content:"";border-bottom:2px solid;border-right:2px solid;width:7px;height:7px;transform:rotate(45deg)}.student-grade-picker[open] summary>span:last-child:after{transform:rotate(225deg)}.student-grade-picker[open]>p{margin-bottom:12px}@media (max-width:640px){.platform-shell .student-course-header{padding:18px}.platform-shell .student-grade-picker{padding-inline:16px}.student-grade-picker summary{font-size:14px}}
.platform-shell:has(.zehno-workshop){background:#f7f6f0}.platform-shell .atlas-workspace .student-canvas:has(.zehno-workshop){background:#f7f6f0}.platform-shell .zehno-workshop{--workshop-ink:#152e3b;--workshop-teal:#086d65;--workshop-line:#dce4e2;--color-tint:#086d65;--color-tint-bg:#e7f3ef;color:var(--workshop-ink);gap:24px}.platform-shell .zehno-workshop :is(h1,h2,h3){font-family:var(--font-nunito), sans-serif!important}.platform-shell .zehno-workshop .home-heading h1{letter-spacing:-.045em;color:var(--workshop-ink);font-size:clamp(28px,3.1vw,38px)}.platform-shell .zehno-workshop .home-eyebrow{color:#526d72;letter-spacing:.035em;align-items:center;gap:8px;font-size:11px;display:flex}.zehno-workshop-dot{border:2px solid #087a6e;width:7px;height:7px;transform:rotate(45deg)}.platform-shell .zehno-workshop .home-plan-link{color:var(--workshop-teal);background:#fff;border:1px solid #cbded7;border-radius:10px}.platform-shell .zehno-workshop .zehno-opening{color:#fff9eb;background:#152e3b;border-radius:26px 26px 26px 6px;gap:16px;padding:clamp(20px,3vw,32px);display:grid}.platform-shell .zehno-workshop .home-heading{align-items:flex-start;padding-inline:2px}.platform-shell .zehno-workshop .home-heading h1{color:#fff9eb}.platform-shell .zehno-workshop .home-heading p:not(.home-eyebrow){color:#ccdadc}.platform-shell .zehno-workshop .home-heading .home-eyebrow{color:#b6d9d3}.platform-shell .zehno-workshop .home-plan-link{color:#fff8e9;background:#244552;border-color:#3a5a62;transition:background-color .15s ease-out,border-color .15s ease-out}.platform-shell .zehno-workshop .home-plan-link:hover{background:#305761;border-color:#6b918d}.zehno-focus-grid{grid-template-columns:minmax(0,1.8fr) minmax(230px,.9fr);gap:20px;display:grid}.platform-shell .zehno-workshop .home-hero{isolation:isolate;background:0 0;border:0;border-radius:0;min-height:320px}.platform-shell .zehno-workshop .home-hero .home-recommendation{z-index:1;width:100%;max-width:100%;padding:18px 10px 18px 2px;position:relative}.platform-shell .zehno-workshop .home-hero .home-recommendation h2{color:#fff8e9;max-width:20ch;font-size:clamp(28px,3vw,36px)}.platform-shell .zehno-workshop .home-hero .home-recommendation .text-tint{color:#7de0cb}.platform-shell .zehno-workshop .home-hero .home-recommendation .text-ink-soft{color:#ccdadc;max-width:41ch}.platform-shell .zehno-workshop .home-hero .home-recommendation :is(.home-diagnostic-benefits li,.text-xs.text-ink-soft){color:#ccdadc}.platform-shell .zehno-workshop .home-hero .home-recommendation .bg-tint-bg{color:#b6f4e5;background:#244552}.platform-shell .zehno-workshop .home-hero .home-recommendation .bg-fill{color:#c9e2df;background:#244552}.platform-shell .zehno-workshop .home-hero .home-recommendation .zehno-primary{color:#152e3b;width:fit-content;min-width:0;min-height:48px;box-shadow:none;background:#ffd17b;border-radius:10px;padding:13px 22px;font-weight:750}.platform-shell .zehno-workshop .home-hero .home-recommendation .zehno-primary:hover{background:#ffdc9b}.platform-shell .zehno-workshop .home-hero :focus-visible{outline-color:#ffd17b}.zehno-geometry-wrap{color:#bce2dd;z-index:0;opacity:.62;pointer-events:none;width:270px;position:absolute;bottom:8px;right:-12px}.zehno-geometry{width:100%;display:block}.zehno-today{color:#493e29;background:#fff7e5;border:1px solid #e3d6ba;border-radius:20px 5px 20px 20px;flex-direction:column;align-items:flex-start;padding:25px;display:flex}.zehno-today header{align-items:center;gap:9px;display:flex}.zehno-today h2{font-size:17px;font-weight:750}.zehno-today-count{font-variant-numeric:tabular-nums;align-items:baseline;gap:9px;margin-top:22px;display:flex}.zehno-today-count strong{letter-spacing:-.05em;font-size:62px;font-weight:750;line-height:1}.zehno-today-count>span{color:#716344;font-size:26px}.zehno-today-unit{color:#716344;margin-top:6px;font-size:13px}.zehno-goal-track{background:#e8ddc5;border-radius:3px;width:100%;height:8px;margin-top:24px;overflow:hidden}.zehno-goal-track>span{border-radius:inherit;background:#08786a;height:100%;display:block}.zehno-today-caption{margin-top:12px;font-size:13px;line-height:1.6}.zehno-today-link{color:#493e29;justify-content:space-between;align-items:center;gap:12px;width:100%;min-height:48px;margin-top:auto;padding-top:12px;font-size:14px;font-weight:750;display:inline-flex}.platform-shell .zehno-workshop .home-stats{border-block:1px solid var(--workshop-line);gap:0;padding-block:17px}.platform-shell .zehno-workshop .home-stat{border:0;border-right:1px solid var(--workshop-line);background:0 0;border-radius:0;padding:4px 20px}.platform-shell .zehno-workshop .home-stat:last-child{border-right:0}.platform-shell .zehno-workshop .home-stat strong{color:var(--workshop-ink);font-size:24px}.platform-shell .zehno-workshop .home-stat-icon{width:26px;height:26px;color:var(--workshop-teal);background:0 0;border-radius:0}.platform-shell .zehno-workshop .home-stat-icon[data-tone=peach],.platform-shell .zehno-workshop .home-stat-icon[data-tone=sand]{color:#946520}.platform-shell .zehno-workshop .home-stat div>span{color:#52696c}.platform-shell .zehno-workshop .home-study-grid{grid-template-columns:minmax(0,1.2fr) minmax(0,1fr);gap:18px}.platform-shell .zehno-workshop .home-continue{background:#eaf3ec;border:1px solid #d2e2d9;border-radius:22px 22px 22px 6px;padding:28px}.platform-shell .zehno-workshop .home-continue>header{color:var(--workshop-teal)}.platform-shell .zehno-workshop .home-continue>header h2,.platform-shell .zehno-workshop .home-continue h3{color:var(--workshop-ink)}.platform-shell .zehno-workshop .home-continue>.home-eyebrow{color:#386653;margin-top:24px}.platform-shell .zehno-workshop .home-continue h3{font-size:clamp(25px,2.4vw,31px);line-height:1.16}.platform-shell .zehno-workshop .home-button{color:#fff;background:#086d65;border-color:#086d65;border-radius:10px;min-height:48px;transition:background-color .15s ease-out}.platform-shell .zehno-workshop .home-button:hover{background:#075c55}.platform-shell .zehno-workshop .home-progress-track>span{background:#08786a}.platform-shell .zehno-workshop .home-course-progress{color:#52696c;border-color:#cddfd2}.platform-shell .zehno-workshop .home-course-progress strong{color:#086d65}.zehno-review-column{min-width:0}.zehno-review-column>div{grid-template-columns:1fr;height:100%}.platform-shell .zehno-workshop .zehno-review-column a{border:1px solid var(--workshop-line);box-shadow:none;border-radius:18px;padding:20px}.platform-shell .zehno-workshop .home-start-path{border:1px solid var(--workshop-line);background:#f0f4f0;border-radius:18px}.platform-shell .zehno-workshop .home-start-path li[aria-current=step]>span{background:var(--workshop-teal);border-color:var(--workshop-teal)}.platform-shell .zehno-workshop .home-community-card{background:#edf4ef;border-color:#d2e2d9;border-radius:18px}.platform-shell .zehno-workshop .home-community-card[data-tone=lilac]{background:#eef1f5;border-color:#d8dfe9}.platform-shell .zehno-workshop .home-community-card[data-tone=lilac] :is(h3,p,.home-card-cta){color:#3a5266}.platform-shell .zehno-workshop .home-course-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.platform-shell .zehno-workshop .home-course-card{box-shadow:none;border-radius:16px;min-height:190px}.platform-shell .zehno-workshop .home-course-card[data-current=true]{background:#ecf5ee;border-color:#9abfaa}.platform-shell .zehno-workshop .home-course-current{color:#285d42;background:#dceee1}.platform-shell .zehno-workshop .home-text-link{color:var(--workshop-teal)}.platform-shell .zehno-workshop :is(.home-community-icon,.home-course-grade>span){border-radius:10px}.platform-shell .zehno-workshop .home-reward-card{background:#fff7e5;border-color:#e3d6ba;border-radius:18px}@media (max-width:900px){.zehno-focus-grid{grid-template-columns:minmax(0,1.8fr) minmax(210px,1fr)}.platform-shell .zehno-workshop .home-hero .home-recommendation{padding:16px 6px}.zehno-today{padding:22px}}@media (max-width:640px){.platform-shell .zehno-workshop{gap:16px}.platform-shell .zehno-workshop .zehno-opening{border-radius:20px 20px 20px 5px;gap:12px;padding:18px}.platform-shell .zehno-workshop .home-heading{gap:10px}.platform-shell .zehno-workshop .home-heading h1{font-size:29px}.platform-shell .zehno-workshop .home-heading p:not(.home-eyebrow){font-size:14px}.zehno-focus-grid{grid-template-columns:1fr;gap:12px}.platform-shell .zehno-workshop .home-hero{border-radius:0;min-height:0}.platform-shell .zehno-workshop .home-hero .home-recommendation{padding:8px 4px 18px}.platform-shell .zehno-workshop .home-hero .home-recommendation h2{font-size:28px}.platform-shell .zehno-workshop .home-hero .home-recommendation .zehno-primary{width:100%}.zehno-geometry-wrap{opacity:.2;width:170px;bottom:4px;right:-44px}.zehno-today{border-radius:18px;grid-template-columns:1fr auto;gap:6px 16px;padding:16px;display:grid}.zehno-today header{grid-column:1;align-self:center}.zehno-today-count{grid-area:1/2/3;margin:0}.zehno-today-count strong{font-size:44px}.zehno-today-count>span{font-size:20px}.zehno-today-unit{grid-column:1;margin:0}.zehno-goal-track{grid-column:1/-1;margin-top:8px}.zehno-today-caption{grid-column:1/-1;margin:0}.zehno-today-link{grid-column:1/-1;margin:0;padding-top:4px}.platform-shell .zehno-workshop .home-stats{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px 0;padding-block:14px}.platform-shell .zehno-workshop .home-stat{padding:0 12px}.platform-shell .zehno-workshop .home-stat:nth-child(2){border-right:0}.platform-shell .zehno-workshop .home-study-grid{grid-template-columns:1fr}.platform-shell .zehno-workshop .home-course-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.platform-shell .zehno-workshop .home-continue{padding:20px}.platform-shell .zehno-workshop .home-continue>.home-eyebrow{margin-top:16px}.platform-shell .zehno-workshop .home-heading .home-plan-link{font-size:0}}
.workshop-landing{--ref-ink:#152e3b;--ref-muted:#586c70;--wl-paper:#f7f6f0;--wl-line:#dbe3dd;--wl-teal:#086d65;--wl-gold:#ffd17b;color:var(--ref-ink);background:var(--wl-paper);background-image:none;padding-top:0}.workshop-landing :is(h1,h2,h3){font-family:var(--font-nunito), sans-serif;font-weight:800}.workshop-landing .ref-header{border-bottom:1px solid var(--wl-line);background:0 0;border-radius:0;width:min(1160px,100% - 48px);min-height:90px;padding:18px 0}.workshop-landing .ref-header nav{color:var(--ref-muted);gap:26px}.workshop-landing .ref-header nav a{min-height:44px}.workshop-landing .ref-brand{color:var(--ref-ink)}.workshop-landing .ref-brand small{color:var(--wl-teal)}.workshop-landing .ref-login{background:var(--wl-teal);color:#fff;border-radius:10px;min-height:44px;padding:11px 20px}.workshop-landing .ref-main{width:calc(100% - 48px);max-width:1160px}.workshop-landing .workshop-hero{color:#fff9eb;isolation:isolate;background:#152e3b;border-radius:28px 28px 28px 6px;grid-template-columns:minmax(0,1.05fr) minmax(0,1fr);gap:44px;margin-top:28px;padding:38px;display:grid;position:relative;overflow:hidden}.workshop-hero-copy{flex-direction:column;justify-content:center;align-items:flex-start;min-width:0;display:flex;position:relative}.workshop-kicker{letter-spacing:.09em;color:#9bddcd;align-items:center;gap:9px;font-size:10px;font-weight:750;line-height:1.6;display:flex}.workshop-kicker>span{background:#9bddcd;flex-shrink:0;width:7px;height:7px;transform:rotate(45deg)}.workshop-landing .workshop-hero h1{letter-spacing:-.045em;color:#fff9eb;max-width:100%;margin:25px 0 21px;font-size:clamp(38px,4.2vw,58px);line-height:1.06}.workshop-landing .workshop-hero h1 em{width:auto;color:var(--wl-gold);background:0 0;font-family:inherit;font-style:normal;font-weight:800;text-decoration:none;display:block}.workshop-hero-copy>p:not(.workshop-kicker){color:#d1dfdf;max-width:43ch;font-size:16px;line-height:1.8}.workshop-landing .workshop-hero .ref-hero-buttons{flex-wrap:wrap;gap:12px;margin:26px 0 24px}.workshop-landing .ref-button{background:var(--wl-teal);min-height:50px;box-shadow:none;color:#fff;border-radius:10px;gap:12px;font-weight:750}.workshop-landing .workshop-hero .ref-button{background:var(--wl-gold);color:#152e3b;padding-inline:20px}.workshop-landing .workshop-hero .workshop-try-link{color:#e0eeea;text-underline-offset:5px;align-items:center;gap:9px;min-height:48px;font-size:13px;text-decoration:underline;display:inline-flex}.workshop-proof{color:#b6d5ce;flex-wrap:wrap;gap:8px 17px;padding:0;font-size:11px;list-style:none;display:flex}.workshop-proof li{align-items:center;gap:6px;display:inline-flex}.workshop-hero-watermark{color:#c5e3d9;opacity:.2;z-index:-1;pointer-events:none;width:220px;position:absolute;bottom:-145px;left:-80px}.workshop-hero-demo{align-self:center;min-width:0}.workshop-demo-label{color:#b8d8d1;flex-wrap:wrap;justify-content:space-between;gap:5px 12px;padding:0 2px 12px;font-size:11px;display:flex}.workshop-demo-label strong{color:#f8e2b7;font-weight:650}.workshop-landing .workshop-hero .ref-practice{color:#152e3b;background:#fffaf0;border:1px solid #f2e2bf;border-radius:18px;margin:0;padding:0 22px 14px;box-shadow:0 14px 40px #061c2220}.workshop-landing .workshop-hero .ref-practice-header{border-color:#e7dfcc;flex-wrap:wrap;gap:8px;min-height:57px;padding-block:12px}.workshop-landing .workshop-hero .ref-practice-header>span{color:#496259;letter-spacing:.03em;background:0 0;padding:0;font-size:9px}.workshop-landing .workshop-hero .ref-practice-header small{color:#41604c;background:#e9f0e6;font-size:9px}.workshop-landing .workshop-hero .ref-practice-grid{padding-top:18px;display:block}.workshop-landing .workshop-hero .ref-chip.lilac{color:#596c62;background:#edf0e6;font-size:9px}.workshop-landing .workshop-hero .ref-practice-question h3{color:#203f48;max-width:none;margin-top:10px;font-size:18px;line-height:1.4}.workshop-landing .workshop-hero .ref-equation{color:#152e3b;background:0 0;border:0;gap:12px;margin-top:6px;padding:8px 0;font-size:43px}.workshop-landing .workshop-hero .ref-equation>span{color:var(--wl-teal)}.workshop-landing .workshop-hero .ref-equation svg{color:#b58931;margin-left:auto}.workshop-landing .workshop-hero .ref-practice-note{color:#62716b;font-size:10px;line-height:1.5;margin-top:5px!important}.workshop-landing .workshop-hero .ref-answers{grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;margin-top:18px}.workshop-landing .workshop-hero .ref-answers button{color:#193c3d;background:#fff;border-color:#cbd8cb;border-radius:10px;justify-content:center;gap:6px;min-height:54px;padding:10px 8px;font-size:22px;box-shadow:0 3px #dfe5d9}.workshop-landing .workshop-hero .ref-answer-ring{display:none}.workshop-landing .workshop-hero .ref-answers button:hover:not(:disabled){border-color:var(--wl-teal);background:#e9f4ee}.workshop-landing .workshop-hero .ref-answers button[data-state=correct]{color:#fff;background:#086d65;border-color:#086d65;box-shadow:0 3px #04453f}.workshop-landing .workshop-hero .ref-answers button[data-state=retry]{color:#805412;background:#fff0d6;border-color:#d6a248}.workshop-landing .workshop-hero .ref-feedback{min-height:63px;margin-top:14px;font-size:12px;line-height:1.6}.workshop-landing .workshop-hero .ref-feedback[data-state=correct]{color:#205d43;background:#eaf4ec;border-color:#c4dec9;border-radius:9px;padding:10px 12px}.workshop-landing .workshop-hero .ref-feedback[data-state=retry]{color:#805412}.workshop-landing .workshop-hero .ref-practice-actions{border-top:1px solid #e7dfcc;margin-top:10px;padding-top:6px}.workshop-landing .workshop-hero .ref-practice-actions button{color:var(--wl-teal);min-height:44px;font-size:12px}.workshop-landing .workshop-hero .ref-practice-actions button:last-child{background:#e9f0e6;border-radius:8px;padding-inline:12px}.workshop-landing .workshop-hero .ref-practice-question{text-align:left;background:0 0;padding:0}.workshop-landing .workshop-hero .ref-equation>span{background:0 0;border:0;padding:0}.workshop-facts{border-bottom:1px solid var(--wl-line);grid-template-columns:repeat(3,minmax(0,1fr));margin-top:22px;padding:20px 0;display:grid}.workshop-facts>div{border-right:1px solid var(--wl-line);flex-wrap:wrap;align-items:baseline;gap:10px;padding:0 26px;display:flex}.workshop-facts>div:first-child{padding-left:0}.workshop-facts>div:last-child{border:0}.workshop-facts strong{color:#173c42;font-size:23px;font-weight:750}.workshop-facts span{color:var(--ref-muted);font-size:12px}.workshop-landing .ref-map{margin-top:82px;scroll-margin-top:24px}.workshop-landing .ref-section-heading{align-items:center;margin-bottom:28px}.workshop-landing .ref-section-heading .ref-eyebrow{color:var(--wl-teal);background:0 0;border-radius:0;margin-bottom:10px;padding:0}.workshop-landing h2{letter-spacing:-.04em;font-size:clamp(27px,3vw,38px)}.workshop-landing .ref-coordinates{display:none}.workshop-landing .ref-world{border:1px solid var(--wl-line);box-shadow:none;background:#fff;border-radius:18px 18px 18px 5px}.workshop-landing .ref-world-top{color:var(--wl-teal)}.workshop-landing .ref-world-symbol{color:var(--wl-teal);background:#edf4ee;border-radius:9px}.workshop-landing .ref-world h3{color:#173c42;font-size:23px}.workshop-landing .ref-world-art{border-radius:12px}.workshop-landing .ref-world-bottom{color:var(--wl-teal);border-color:var(--wl-line)}.workshop-landing .ref-world-bottom>span{color:#416359;background:#edf4ee}.workshop-landing .ref-world:hover{border-color:#91b9a8;transform:translateY(-4px);box-shadow:0 12px 28px #1d51420c}.workshop-landing .ref-route{box-shadow:none;border-color:var(--wl-line);border-radius:20px;margin-top:76px;padding:38px}.workshop-landing .ref-route>.ref-eyebrow{color:var(--wl-teal);background:0 0;padding:0}.workshop-landing .ref-route h2{max-width:700px}.workshop-landing .ref-grade-label{margin-top:26px}.workshop-landing .ref-grades button{border-radius:9px;min-height:52px}.workshop-landing .ref-grades button[aria-pressed=true]{background:var(--wl-teal);color:#fff;border-color:var(--wl-teal);box-shadow:0 3px #044d48}.workshop-landing .ref-grade-result{background:#f1f5ee;border-color:#dce6d9;border-radius:12px;margin-top:24px;padding:24px}.workshop-landing .ref-grade-badge{background:#183d45;border-radius:9px}.workshop-landing .ref-grade-result .ref-button{background:var(--wl-teal)}.workshop-landing .ref-how{margin-top:80px}.workshop-landing .ref-steps{gap:26px}.workshop-landing .ref-steps article{box-shadow:none;background:0 0;border:0;border-top:2px solid #bbd0c3;border-radius:0;padding:24px 0}.workshop-landing .ref-step-number{color:var(--wl-teal)}.workshop-landing .ref-step-icon{display:none}.workshop-landing .ref-steps h3{color:#173c42;font-size:22px}.workshop-landing .ref-faq{grid-template-columns:minmax(0,.8fr) minmax(0,1.2fr);gap:0 48px;max-width:none;margin-top:64px;display:grid}.workshop-faq-heading{min-width:0}.workshop-landing .ref-faq h2{margin-top:12px}.workshop-landing .ref-faq details{border:0;border-bottom:1px solid var(--wl-line);background:0 0;border-radius:0;margin:0;padding:21px 0}.workshop-landing .ref-faq summary{min-height:44px;font-size:18px}.workshop-landing .ref-faq details>p{font-size:14px;line-height:1.8}.workshop-landing .ref-outro{background:#e8f0e8;border:1px solid #d5e1d3;border-radius:22px 5px 22px 22px;margin-top:76px;padding:42px}.workshop-landing .ref-outro h2{color:#153c43;max-width:650px;margin-inline:auto}.workshop-landing .ref-outro .ref-eyebrow{color:#386653;background:0 0}.workshop-landing .ref-outro>p:not(.ref-eyebrow){color:#42645b}.workshop-landing .ref-outro-sum,.workshop-landing .ref-outro h2>span{display:none}.workshop-landing .ref-bulb{color:var(--wl-teal);background:#f7faf3;border-color:#c3d9c7}.workshop-landing .ref-outro .ref-button{background:var(--wl-teal)}.workshop-landing .ref-outro-legal{color:#526d64}.workshop-landing .ref-footer{border-color:var(--wl-line);color:var(--ref-muted)}.workshop-landing .ref-bottom-nav{border-color:var(--wl-line);background:#fffdf6f5;border-radius:0}.workshop-landing .ref-bottom-nav :is(a,svg){color:var(--wl-teal)}.workshop-landing :is(a,button,summary):focus-visible{outline-offset:4px;outline:3px solid #086d65}.workshop-landing .workshop-hero-copy :focus-visible{outline-color:#ffd17b}.workshop-landing .ref-practice{scroll-margin-top:24px}.workshop-landing .ref-practice-note{align-items:flex-start;gap:6px;display:flex}.workshop-landing .ref-practice-note svg{flex-shrink:0}.workshop-landing .ref-practice-actions{flex-wrap:wrap;gap:8px}.workshop-landing .ref-bottom-nav a{min-height:48px}@media (prefers-reduced-motion:no-preference){.workshop-hero-copy,.workshop-hero-demo{animation:.45s ease-out both workshop-arrive}.workshop-hero-demo{animation-delay:90ms}}@keyframes workshop-arrive{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}@media (max-width:1000px){.workshop-landing .workshop-hero{grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:26px;padding:28px}.workshop-landing .ref-header nav{gap:16px}.workshop-landing .workshop-hero h1{font-size:42px}.workshop-landing .ref-faq{gap:28px}}@media (max-width:800px){.workshop-landing .workshop-hero{grid-template-columns:1fr;gap:30px}.workshop-hero-copy{max-width:580px}.workshop-hero-demo{width:100%;max-width:580px;margin-inline:auto}.workshop-landing .workshop-hero h1{font-size:clamp(38px,6.5vw,54px)}.workshop-landing .ref-faq{grid-template-columns:1fr}}@media (max-width:640px){.workshop-landing .ref-header{gap:12px;width:calc(100% - 32px);min-height:76px;padding:12px 0}.workshop-landing .ref-main{width:calc(100% - 32px)}.workshop-landing .ref-header-actions{gap:6px}.workshop-landing .ref-brand small{display:none}.workshop-landing .workshop-hero{border-radius:20px 20px 20px 5px;gap:24px;margin-top:18px;padding:22px 18px}.workshop-landing .workshop-hero h1{margin:19px 0;font-size:clamp(34px,9vw,46px)}.workshop-hero-copy>p:not(.workshop-kicker){font-size:14px;line-height:1.8}.workshop-landing .workshop-hero .ref-hero-buttons{align-items:stretch;gap:8px;width:100%;margin:21px 0 17px}.workshop-landing .workshop-hero .ref-hero-buttons .ref-button{width:100%;font-size:14px}.workshop-landing .workshop-hero .workshop-try-link{justify-content:center;width:100%}.workshop-proof{gap:8px 12px;font-size:10px}.workshop-landing .workshop-hero .ref-practice{padding-inline:16px}.workshop-landing .workshop-hero .ref-practice-question h3{font-size:16px}.workshop-landing .workshop-hero .ref-equation{font-size:36px}.workshop-landing .workshop-hero .ref-feedback{min-height:78px}.workshop-facts{gap:8px;padding-block:16px}.workshop-facts>div{padding:0 10px;display:block}.workshop-facts strong{font-size:19px;display:block}.workshop-facts span{font-size:10px}.workshop-landing .ref-map,.workshop-landing .ref-route,.workshop-landing .ref-how{margin-top:52px}.workshop-landing .ref-section-heading{margin-bottom:22px}.workshop-landing .ref-route{padding:23px 20px}.workshop-landing .ref-grade-result{padding:18px}.workshop-landing .ref-faq{gap:6px;margin-top:42px}.workshop-landing .ref-outro{margin-top:44px;padding:30px 22px}.workshop-landing .ref-steps article{padding-top:18px}.workshop-landing .ref-footer{width:calc(100% - 32px)}}
.platform-shell,.platform-shell .atlas-workspace,.platform-shell .grade-experience,.platform-shell .grade-experience[data-experience]{--color-bg:#f7f6f0;--color-paper:#f7f6f0;--color-paper-deep:#eeeee5;--color-surface-2:#f0f4ee;--color-ink:#152e3b;--color-label:#152e3b;--color-ink-soft:#52696c;--color-label-2:#52696c;--color-ink-faint:#657575;--color-label-3:#657575;--color-tint:#086d65;--color-tint-bg:#e7f3ef;--color-line:#dbe3dd;--color-sep:#dbe3dd;--color-fill:#edf1e9;--card-border:#dbe3dd;--card-shadow:0 4px 18px #153c4306;--font-display:var(--font-nunito), sans-serif;color:var(--color-ink);background:#f7f6f0}.platform-shell :is(h1,h2,h3,.practice-question){font-family:var(--font-nunito), sans-serif!important}.platform-shell .atlas-workspace .student-canvas{background:#f7f6f0}.platform-shell :is(a,button,input,select,textarea,summary):focus-visible{outline-offset:4px;outline:3px solid #086d65}.platform-shell .platform-header{padding-top:12px}.platform-shell .platform-topbar{box-shadow:none;background:#fffdf6;border-color:#dbe3dd;border-radius:18px 18px 18px 5px}.platform-shell .platform-wordmark{color:#152e3b;font-family:var(--font-nunito), sans-serif}.platform-shell .platform-wordmark svg{color:#086d65}.platform-shell .platform-brand-dots{color:#9bbdb0}.platform-shell .platform-brand>span{color:#52696c}.platform-shell .platform-primary-nav a{color:#52696c;border-radius:9px}.platform-shell .platform-primary-nav a[aria-current=page]{color:#086d65;background:#e7f3ef;box-shadow:inset 0 -3px #086d65}.platform-shell .platform-primary-nav a:hover{color:#086d65;background:#edf3eb}.platform-shell .platform-icon-button{color:#52696c;border-radius:10px;width:44px;min-height:44px}.platform-shell .platform-icon-button:hover{color:#086d65;background:#e7f3ef}.platform-shell .platform-notification-count{color:#493e29;background:#ffd17b;place-items:center;min-width:18px;height:18px;padding:0 4px;font-weight:750;line-height:1;display:grid}.platform-shell .platform-tools button[aria-haspopup]{background:#f0f4ee;border-color:#dbe3dd;border-radius:10px;min-width:44px;min-height:44px}.platform-shell .platform-mobile-context{color:#52696c}.platform-shell .platform-context-nav nav a{color:#52696c;border-color:#dbe3dd;border-radius:9px;min-height:44px}.platform-shell .platform-context-nav nav a[aria-current=page]{color:#086d65;box-shadow:none;background:#e7f3ef;border-color:#d5e8e1}.platform-shell .student-tabbar{border-color:#dbe3dd;border-radius:16px 16px 0 0;box-shadow:0 -4px 18px #152e3b08;background:#fffdf6fa!important}.platform-shell .student-tabbar a,.platform-shell .student-tabbar a>span{color:#52696c}.platform-shell .student-tabbar a[aria-current=page],.platform-shell .student-tabbar a[aria-current=page]>span{color:#086d65;background:#e7f3ef}.platform-shell .grade-experience .student-nav-link[aria-current=page] .student-tab-icon{color:#086d65;background:0 0}.platform-shell .student-page-heading{border-bottom:1px solid #dbe3dd;padding-bottom:24px}.platform-shell .student-page-heading h1{letter-spacing:-.04em}.platform-shell :is(.zehno-group,.zehno-card,.reward-board,.reward-game-card,.review-card,.science-grade-picker,.science-source){box-shadow:none;border-color:#dbe3dd;border-radius:18px 18px 18px 5px}.platform-shell :is(a,button).bg-tint,.platform-shell :is(.stem-button,.atlas-cta),.platform-shell button.bg-paint-green{color:#fff;box-shadow:none;background:#086d65;border-radius:10px}.platform-shell :is(.stem-button,.atlas-cta):hover{background:#075c55}.platform-shell :is(a,button)[class~="bg-[#0E1A1F]"]{background:#086d65;border-radius:10px}.platform-shell .student-course-header{color:#fff9eb;background:#152e3b;border:0;border-radius:22px 22px 22px 5px;padding:30px;position:relative;overflow:hidden}.platform-shell .student-course-header .student-page-heading{border:0;padding:0}.platform-shell .student-course-header h1{color:#fff9eb}.platform-shell .student-course-header .text-tint{color:#9bddcd}.platform-shell .student-course-header .text-ink-soft{color:#d1dfdf}.platform-shell .student-course-header .text-ink{color:#fff9eb}.platform-shell .student-course-header :focus-visible{outline-color:#ffd17b}.platform-shell .course-navigation a{color:#52696c;border-color:#dbe3dd;border-radius:9px;min-height:44px}.platform-shell .course-navigation a[aria-current=page],.platform-shell .course-navigation a[data-course][aria-current=page]{color:#fff;background:#086d65;border-color:#086d65;box-shadow:inset 0 -3px #044e49}.platform-shell .student-grade-picker{background:#fffdf6;border:1px solid #dbe3dd;border-radius:12px}.platform-shell .student-grade-picker .course-navigation a{justify-content:center;min-width:44px}.platform-shell .problem-topic{box-shadow:none;background:#fff;border-color:#dbe3dd;border-radius:18px 18px 18px 5px;transition:border-color .15s,box-shadow .15s}.platform-shell .problem-topic:hover{border-color:#7dab9c;box-shadow:0 6px 18px #153c4308}.platform-shell .workshop-topic-icon{background:#e7f3ef;border-radius:9px;color:#086d65!important}.platform-shell .workshop-filters button[aria-pressed=true],.platform-shell .lab-tabs button[aria-pressed=true]{color:#086d65;background:#e7f3ef;border-color:#78a998}.platform-shell .workshop-count{color:#386653;background:#edf3eb;border-color:#dbe3dd}.platform-shell .course-mastery{accent-color:#086d65;background:#e5ece4}.platform-shell .course-mastery::-webkit-progress-bar{background:#e5ece4}.platform-shell .course-mastery::-webkit-progress-value{background:#086d65}.platform-shell .course-mastery::-moz-progress-bar{background:#086d65}.platform-shell :is(.hero-dark,.hero-teal,.tasks-hero){color:#fff9eb;background:#152e3b;border-color:#244552;border-radius:22px 22px 22px 5px}.platform-shell .hero-teal:not(.tasks-hero){color:#153c36;background:#e7f3ef;border-color:#bfd9cc}.platform-shell .learning-hero{color:#493e29;background:#fff7e5;border-color:#e3d6ba;border-radius:22px 22px 22px 5px}.platform-shell .student-badge{color:#086d65;background:#e7f3ef;border-radius:8px}.platform-shell .student-progress{background:#e5ece4;border-radius:3px}.platform-shell .student-progress>div{border-radius:inherit;background:#086d65}.platform-shell .home-course-card:nth-child(n) .home-course-grade{color:#759f8c}.platform-shell .home-course-card:nth-child(n) .home-course-grade>span{color:#386653;background:#edf3eb}.platform-shell .home-course-card:nth-child(n) .home-course-meta{color:#386653;border-color:#dbe3dd}.platform-shell .home-course-card:hover{border-color:#7dab9c;box-shadow:0 6px 18px #153c4308}.platform-shell .home-text-link{color:#086d65}.platform-shell .home-launch-grid a{border-color:#dbe3dd}.platform-shell .key[aria-pressed=true]:not([data-answer-state]){color:#086d65;background:#e7f3ef;border-color:#086d65}.platform-shell .key:hover:not(:disabled){border-color:#086d65}.platform-shell .practice-card button[class~="bg-[#0C7B74]"]{color:#fff;background:#086d65;box-shadow:0 4px #044e49}.platform-shell .workshop-path li[aria-current=step]{color:#086d65}.platform-shell .workshop-path li[aria-current=step]>span{background:#086d65;border-color:#086d65}.platform-shell .problem-topic strong{overflow-wrap:anywhere}.platform-shell .problem-topic:hover{border-color:#7dab9c}.platform-shell :is(.course-card-action,.home-text-link){align-items:center;min-height:44px;display:inline-flex}.platform-shell .student-canvas{scroll-margin-bottom:calc(6rem + env(safe-area-inset-bottom))}.platform-shell .student-canvas :is(a,button,input,textarea,select,summary){scroll-margin-block:24px calc(6rem + env(safe-area-inset-bottom))}.platform-shell .practice-card{background:#fff;border-color:#dbe3dd;border-radius:22px 22px 22px 5px;box-shadow:0 4px 18px #153c4306}.platform-shell .key:not([data-answer-state]){border-color:#dbe3dd;box-shadow:0 4px #e6ece7}.platform-shell .key[aria-pressed=true]:not([data-answer-state]){border-color:#086d65}.platform-shell [data-number-line]:focus-visible{outline-offset:4px;outline:3px solid #086d65}.platform-shell .practice-stage{color:#086d65;background:#e7f3ef}.platform-shell .practice-hint{background:#f0f4ee;border-color:#d5e1d3}.platform-shell .practice-hint button{color:#086d65}.platform-shell .practice-card button[type=submit]{background:#086d65;box-shadow:0 4px #044e49}.platform-shell .learning-session .practice-question{overflow-wrap:anywhere}.platform-shell .learning-session :is(.practice-question,[data-learning-feedback]):focus{outline:none}.platform-shell :is(.learning-summary,.learning-state){background:#f7f6f0}.platform-shell :is(.learning-summary,.learning-state)>section{border:1px solid #dbe3dd;border-radius:22px 22px 22px 5px;box-shadow:0 4px 18px #153c4306}.platform-shell :is(.learning-summary,.learning-state) h1{overflow-wrap:anywhere}.platform-shell :is(.learning-summary,.learning-state) h1:focus{outline:none}.platform-shell .learning-summary button{min-height:44px}.platform-shell .review-stats{gap:10px}.platform-shell .review-deck>.workshop-hero{color:#fff9eb;background:#152e3b;border:0;border-radius:22px 22px 22px 5px}.platform-shell .review-deck>.workshop-hero h1{color:#fff9eb}.platform-shell .review-deck>.workshop-hero>p{color:#d1dfdf}.platform-shell .review-deck>.workshop-hero>.atlas-kicker{color:#9bddcd}.platform-shell .review-stats>div{color:#153c36;background:#e7f3ef;border:1px solid #d2e2d9;border-radius:12px;min-width:0}.platform-shell .review-stats span{overflow-wrap:anywhere;line-height:1.5}.platform-shell .review-create{box-shadow:none;border-color:#dbe3dd;border-radius:18px 18px 18px 5px}.platform-shell .review-create summary{min-height:44px;padding-block:10px}.platform-shell .review-ratings button{padding:10px;line-height:1.5}.platform-shell .review-ratings button:hover:not(:disabled){border-color:#086d65}.platform-shell .review-deck textarea{resize:vertical;font-size:16px}.platform-shell .review-deck :is(h2,h3)[tabindex="-1"]:focus{outline:none}@media (max-width:640px){.platform-shell .platform-header{padding-inline:12px}.platform-shell .platform-topbar{border-radius:14px 14px 14px 5px;gap:4px;padding:8px}.platform-shell .platform-tools{gap:0}.platform-shell .platform-wordmark.is-compact{font-size:20px}.platform-shell .platform-tools button[aria-haspopup]{padding:4px}.platform-shell .platform-tools>div:last-child>button{padding:3px}.platform-shell .student-course-header{padding:20px}.platform-shell .student-page-heading{padding-bottom:20px}.platform-shell .student-grade-picker .course-navigation{grid-template-columns:repeat(auto-fit,minmax(44px,1fr));gap:8px;display:grid}.platform-shell .problem-topic{gap:8px;padding:18px}.platform-shell .problem-topic strong{font-size:18px;line-height:1.4}.platform-shell .course-card-action{min-height:32px}.platform-shell .learning-session .practice-question-content{flex:0 auto;justify-content:flex-start;padding-block:12px 20px}.platform-shell .learning-session .practice-card{flex:0 auto}.platform-shell .learning-session .practice-question[data-long=true]{text-align:left;font-size:20px;line-height:1.5}}@media (max-width:359px){.platform-shell .review-stats{grid-template-columns:1fr;gap:8px}.platform-shell .review-stats>div{flex-direction:row;align-items:center;gap:16px;padding:10px 16px}.platform-shell .review-stats strong{min-width:2ch}.platform-shell .zehno-workshop .home-course-grid{grid-template-columns:1fr}.platform-shell .zehno-workshop .home-course-card{min-height:170px}}@media (prefers-reduced-motion:reduce){.platform-shell .problem-topic{transition:none}}
.platform-shell .student-home>.learning-rewards{animation:none}.learning-rewards{--rewards-ink:var(--workshop-ink,#152e3b);--rewards-accent:var(--workshop-teal,#086d65);--rewards-muted:#52666b;--rewards-line:var(--workshop-line,#dce4e2);--rewards-surface:#fff;--rewards-soft:#e7f3ef;color:var(--rewards-ink);background:var(--rewards-surface);border:1px solid var(--rewards-line);font-variant-numeric:tabular-nums;border-radius:20px 20px 20px 5px;grid-template-columns:minmax(0,1fr) minmax(0,1fr);display:grid;overflow:hidden}.learning-rewards-growth,.learning-rewards-quests{min-width:0;padding:24px}.learning-rewards-quests{border-left:1px solid var(--rewards-line)}.learning-rewards-heading{justify-content:space-between;align-items:center;gap:12px;display:flex}.learning-rewards-heading :is(h2,h3){margin:0;font-size:18px;font-weight:800;line-height:1.4}.learning-rewards-heading>svg{color:var(--rewards-accent);flex:none}.learning-rewards-level{align-items:center;gap:16px;margin:20px 0;display:flex}.learning-level-mark{background:var(--rewards-soft);width:64px;height:70px;color:var(--rewards-accent);clip-path:polygon(50% 0,95% 22%,95% 72%,50% 100%,5% 72%,5% 22%);flex:none;place-items:center;display:grid}.learning-level-mark span{font-family:var(--font-display);font-size:30px;font-weight:800}.learning-rewards-level p{margin:0 0 2px;font-size:20px;font-weight:700}.learning-rewards-level>div:last-child>span{color:var(--rewards-muted);font-size:14px}.learning-xp-label{flex-wrap:wrap;justify-content:space-between;gap:4px 12px;margin-bottom:8px;font-size:13px;display:flex}.learning-xp-label strong{color:var(--rewards-accent);font-weight:700}.learning-xp-track,.learning-quest-track{background:var(--rewards-line);border-radius:4px;height:8px;overflow:hidden}.learning-xp-track>span,.learning-quest-track>span{background:var(--rewards-accent);transform-origin:0;width:100%;height:100%;display:block}.learning-xp-rule,.learning-quest-reset{color:var(--rewards-muted);font-size:12px;line-height:1.5}.learning-xp-rule{max-width:48ch;margin:10px 0 0}.learning-quest-total{color:var(--rewards-muted);flex:none;font-size:13px}.learning-quest-list{margin:12px 0 0;padding:0;list-style:none}.learning-quest-list li{grid-template-columns:20px minmax(0,1fr) auto 48px;align-items:center;gap:10px;min-height:54px;display:grid}.learning-quest-list li>svg{color:var(--rewards-muted)}.learning-quest-list li[data-complete=true]>svg{color:var(--rewards-accent)}.learning-quest-list li>div>span{font-size:14px;font-weight:600;line-height:1.35;display:block}.learning-quest-track{height:3px;margin-top:7px}.learning-quest-count{color:var(--rewards-muted);font-size:12px}.learning-quest-action{border:1px solid var(--rewards-line);width:44px;min-height:44px;color:var(--rewards-accent);transition:background-color var(--motion-fast,.16s) ease;border-radius:8px;justify-self:end;place-items:center;display:grid}.learning-quest-done{color:var(--rewards-accent);justify-self:end;font-size:12px}.learning-quest-reset{margin:8px 0 0}.learning-badge-collection{border-top:1px solid var(--rewards-line);grid-column:1/-1}.learning-badge-collection summary{cursor:pointer;justify-content:space-between;align-items:center;gap:12px;min-height:60px;padding:12px 24px;list-style:none;display:flex}.learning-badge-collection summary::-webkit-details-marker{display:none}.learning-badge-collection summary>span{flex-wrap:wrap;align-items:center;gap:10px;font-size:14px;display:flex}.learning-badge-collection summary>span>span{color:var(--rewards-muted)}.learning-badge-collection summary>svg{flex:none}.learning-badge-collection[open] summary>svg{transform:rotate(180deg)}.learning-badge-collection>p{color:var(--rewards-muted);margin:0 24px 16px;font-size:14px}.learning-badge-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;margin:0;padding:0 24px 24px;list-style:none;display:grid}.learning-badge-grid li{border:1px solid var(--rewards-line);text-align:center;border-radius:10px;flex-direction:column;justify-content:center;align-items:center;gap:8px;padding:16px 10px;display:flex}.learning-badge-icon{width:28px;height:28px;color:var(--rewards-muted)}.learning-badge-grid li[data-earned=true]{background:var(--rewards-soft)}.learning-badge-grid li[data-earned=true] .learning-badge-icon{color:var(--rewards-accent)}.learning-badge-grid strong{overflow-wrap:anywhere;font-size:13px;font-weight:700;line-height:1.4}.learning-badge-grid li>span{color:var(--rewards-muted);align-items:center;gap:4px;font-size:12px;display:flex}.learning-milestone{background:var(--rewards-soft);color:var(--rewards-accent);border-top:1px solid var(--rewards-line);animation:learning-milestone-in .24s var(--ease-out);grid-column:1/-1;justify-content:space-between;align-items:center;gap:12px;padding:8px 16px 8px 24px;display:flex}.learning-milestone>div{align-items:center;gap:10px;font-size:14px;font-weight:600;display:flex}.learning-milestone svg{flex:none}.learning-milestone button{min-width:44px;min-height:44px;color:inherit;cursor:pointer;background:0 0;border:0;border-radius:8px;flex:none;place-items:center;display:grid}.learning-rewards :is(a,button,summary):focus-visible{outline:2px solid var(--rewards-accent);outline-offset:-3px}@keyframes learning-milestone-in{0%{opacity:0;transform:translateY(4px)}to{opacity:1;transform:translateY(0)}}@media (hover:hover) and (pointer:fine){.learning-quest-action:hover,.learning-milestone button:hover,.learning-badge-collection summary:hover{background:var(--rewards-soft)}}@media (max-width:760px){.learning-rewards{grid-template-columns:minmax(0,1fr)}.learning-rewards-quests{border-left:0;border-top:1px solid var(--rewards-line)}.learning-badge-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}@media (max-width:480px){.learning-rewards-growth,.learning-rewards-quests{padding:20px}.learning-rewards-level{margin:16px 0}.learning-badge-collection summary{padding-inline:20px}.learning-badge-collection>p{margin-inline:20px}.learning-badge-grid{grid-template-columns:repeat(2,minmax(0,1fr));padding:0 20px 20px}.learning-quest-list li{grid-template-columns:18px minmax(0,1fr) auto 44px;gap:8px}.learning-milestone{padding-left:20px}}@media (prefers-reduced-motion:reduce){.learning-milestone{animation:.16s learning-milestone-fade}.learning-quest-action{transition:none}}@keyframes learning-milestone-fade{0%{opacity:0}to{opacity:1}}