@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;450;500;550;600;650;700&family=Manrope:wght@400;500;600;650;700;750;800&display=swap');
:root{--paper:#f7f8f5;--card:#fff;--ink:#172e41;--muted:#66757a;--line:#e1e7e4;--teal:#1b766e;--teal-light:#e5f2ec;--blue:#365cd6;--yellow:#f2ca6b;--coral:#e9856d;--navy:#19364a;--radius:18px;font-family:'DM Sans',system-ui,sans-serif;color:var(--ink);font-synthesis:none;background:var(--paper)}
*{box-sizing:border-box}body{margin:0;font-size:14px;line-height:1.55}button,input,select,textarea{font:inherit}button,a,input,select,textarea{-webkit-tap-highlight-color:transparent}button,a{touch-action:manipulation}button{cursor:pointer}a{color:inherit;text-decoration:none}button:disabled{cursor:not-allowed;opacity:.5}button{color:inherit}button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid #759df0;outline-offset:4px}h1,h2,h3,h4,p{margin:0}h1,h2,h3,h4{font-family:'Manrope',system-ui,sans-serif;font-weight:750;line-height:1.25;letter-spacing:-.045em}h1{font-size:40px}h2{font-size:23px}h3{font-size:18px}p+p{margin-top:12px}button{border:0;background:transparent}svg{display:block}button svg,a svg{flex-shrink:0}.icon{width:20px;height:20px;stroke:currentColor;fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}.sidebar{width:235px;position:fixed;inset:0 auto 0 0;z-index:30;background:#fffdf8;border-right:1px solid var(--line);display:flex;flex-direction:column;padding:34px 22px 22px}.brand{display:flex;align-items:center;gap:11px;margin:0 8px 41px}.brand-symbol{width:37px;height:40px;flex-shrink:0}.brand-text{font-family:Manrope,system-ui,sans-serif;font-weight:800;line-height:1.2;letter-spacing:-.5px;font-size:16px}.brand small{display:block;margin-top:5px;font-size:8px;letter-spacing:2.15px;font-weight:700;color:var(--muted)}.nav-label{text-transform:uppercase;font-size:9px;letter-spacing:1.9px;font-weight:700;color:#8a9698;margin:0 15px 12px}.nav-list{display:grid;gap:6px}.nav-item{display:flex;gap:13px;align-items:center;border-radius:9px;padding:13px 14px;color:#647379;font-weight:550;font-size:13px;transition:background .15s,color 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small{display:block;font-size:10px;color:var(--muted);margin-top:2px}.workspace{margin-left:235px;min-height:100vh}.topbar{height:85px;padding:0 45px;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;align-items:center;background:#ffffff70;gap:12px}.topbar-title{font-size:12px;color:var(--muted)}.topbar-title b{color:var(--ink);font-weight:550}.topbar-title span{margin:0 12px;color:#a9b4b3}.topbar-actions{display:flex;align-items:center;gap:19px}.topbar-date{font-size:11px;color:var(--muted)}.icon-button{display:grid;place-items:center;width:35px;height:35px;border-radius:50%;background:#fff;border:1px solid var(--line)}.icon-button:hover{background:#edf2ee}.sign-in{display:flex;align-items:center;gap:8px;font-size:12px;font-weight:600}.mobile-menu{display:none}main{max-width:1510px;margin:auto;padding:38px 45px 55px;min-height:calc(100vh - 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@media(max-width:650px){.workspace{margin-left:0}.sidebar{transform:translateX(-100%);width:230px;padding:28px 21px;transition:transform .2s;box-shadow:20px 0 50px #132a4b25}.sidebar.open{transform:translateX(0)}.sidebar.open .brand-text,.sidebar.open .nav-label,.sidebar.open .nav-item>span,.sidebar.open .mini-note,.sidebar.open .profile-foot>div:not(.avatar){display:block}.sidebar.open .brand{margin:0 7px 35px}.sidebar.open .nav-item{justify-content:flex-start}.sidebar.open .profile-foot{justify-content:flex-start}.mobile-menu{display:grid}.topbar{height:68px;padding:0 20px}.topbar-actions{gap:14px}.topbar-title{font-size:10px}.topbar-title span{margin:0 7px}.topbar-title .wide-label{display:none}.sign-in{font-size:11px}.sign-in>.icon{display:none}main{padding:26px 20px 40px}.page-heading{margin-bottom:22px}.page-heading h1{font-size:32px;letter-spacing:-1.5px}.page-heading p{font-size:12px}.eyebrow{font-size:8px;margin-bottom:11px}.dashboard-grid{grid-template-columns:1fr}.hero{padding:28px;min-height:295px}.hero h2{font-size:31px;max-width:270px}.hero-content{max-width:70%}.hero-art{opacity:.85;width:41%;right:-7px}.hero p{font-size:12px}.hero-meta{font-size:9px;gap:13px}.today-card{display:grid;grid-template-columns:105px 1fr;grid-template-rows:auto auto auto;column-gap:25px;padding:18px 22px;text-align:left;position:relative;align-items:center}.today-card .card-label{grid-column:2;grid-row:1;font-size:9px;margin:0}.today-card .progress-ring{grid-column:1;grid-row:1/5;width:105px;height:105px;margin:0}.ring-label strong{font-size:25px}.ring-label small{font-size:8px;margin-top:6px}.today-card h3{grid-column:2;grid-row:2;margin-top:8px}.today-card p{grid-column:2;grid-row:3}.challenge-dots{grid-column:2;grid-row:4;margin-top:9px}.stat-strip{gap:9px;margin-top:15px}.stat-card{padding:14px 10px;display:block;text-align:center}.stat-card .stat-icon{margin:0 auto 9px;width:31px;height:31px}.stat-card strong{font-size:16px}.stat-card small{font-size:8px}.section{margin-top:28px}.section-heading h2{font-size:17px}.section-heading .link-button{font-size:9px}.week-row{gap:5px}.day-card{min-height:103px;border-radius:9px;padding:12px 2px 9px}.day-card .weekday{font-size:8px;letter-spacing:.3px}.day-card .day-number{font-size:12px;width:28px;height:28px}.day-card small{font-size:7px}.day-card .tiny-progress{margin-inline:7px}.feature-grid{grid-template-columns:1fr}.feature-card{min-height:unset;padding:21px}.feature-card h3{font-size:16px}.feature-card p{font-size:12px;margin-bottom:10px}.feature-card .stat-icon{width:42px;height:42px}.source-note{font-size:9px}.preview-notice{font-size:10px;align-items:flex-start;padding:11px;gap:8px;margin-bottom:23px}.preview-notice>span{align-items:flex-start;gap:7px}.preview-notice a,.preview-notice button{font-size:10px}.preview-notice .icon{width:14px;margin-top:1px}.footer{padding:21px 20px;flex-direction:column;font-size:9px;gap:11px}.footer>div{gap:20px}.course-head{display:block;padding:22px}.course-numbers{margin-top:19px;gap:27px}.course-numbers strong{font-size:24px}.course-numbers small{font-size:9px}.week-panel{padding:18px 13px}.week-panel-head{gap:10px;align-items:flex-start;margin-bottom:16px}.week-index{width:33px;height:33px;flex-shrink:0;font-size:12px;border-radius:9px}.week-panel-head h3{font-size:13px;line-height:1.4}.week-panel-head p{font-size:9px}.week-panel-head .badge{font-size:7px;white-space:nowrap;padding:3px 5px}.day-card.course-day{min-height:unset;min-width:100px;padding:14px 10px}.week-panel .week-row{display:flex;overflow-x:auto;padding-bottom:7px;scroll-snap-type:x proximity;gap:7px}.course-day{scroll-snap-align:start;flex:1}.course-day .topic{font-size:10px;min-height:42px}.lesson-banner{padding:22px;display:block}.lesson-banner h1{font-size:25px}.lesson-banner .badge{margin-top:13px;font-size:9px}.question-card{padding:21px}.question-prompt{font-size:18px;line-height:1.7}.question-header>span{font-size:9px}.question-header{margin-bottom:20px}.question-nav .number-grid{grid-template-columns:repeat(10,1fr);gap:5px}.number-button{font-size:9px;border-radius:4px}.answer-toolbar{gap:8px}.answer-toolbar .button{min-width:unset;padding:11px 15px;font-size:11px}.save-status{width:100%;margin-top:5px}.tabs{gap:25px}.learn-card{padding:22px}.learn-card p{font-size:12px}.teacher-stats{gap:10px}.teacher-stat strong{font-size:25px}.teacher-stat p{font-size:9px}.settings-card{padding:22px}.settings-card h2{font-size:17px}.form-row{flex-direction:column;gap:0}.toolbar{gap:9px}.toolbar .button{font-size:10px;padding:10px 13px}.toolbar select{width:100%}.toolbar .input-wrap{min-width:100%}.empty-state{padding:35px 23px}.empty-state h2{font-size:19px}.empty-state p{font-size:12px}.review-item{padding:18px}.review-item .review-actions{flex-wrap:wrap}.recap-grid{gap:8px}.recap-grid>div{padding:15px 8px}.recap-grid small{font-size:8px}.source-block{font-size:9px}.topic-pills button{font-size:9px}}
@media(max-width:380px){main{padding-inline:15px}.hero{padding:23px}.hero h2{font-size:28px}.hero-art{opacity:.55}.hero-content{max-width:80%}.page-heading h1{font-size:29px}.today-card{column-gap:15px;padding:17px}.topbar{padding-inline:15px}.topbar-title span{margin-inline:5px}.topbar-actions{gap:10px}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}}
.lesson-sequence{display:grid;grid-template-columns:1fr 1fr;gap:17px;margin:22px 0}.sequence-step{display:flex;gap:12px;align-items:center}.sequence-step>span{width:31px;height:31px;border-radius:50%;background:#e8f0e3;display:grid;place-items:center;color:#56735a;font-size:10px}.sequence-step strong{display:block;font-size:11px;font-weight:600}.sequence-step small{font-size:9px;color:var(--muted)}.practice-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:15px}.practice-item{padding:22px;border-radius:13px;background:#fff;border:1px solid var(--line)}.practice-item>p{font-size:12px;line-height:1.8;margin:15px 0}.assignment-note{padding:8px 12px;background:#ffffff15;border-radius:7px}.question-diagram{margin:22px 0;padding:20px;border:1px solid #e2e8df;border-radius:12px;background:#fcfdf8}.question-diagram svg{max-width:100%;height:auto;margin:auto}.question-diagram figcaption{font-size:10px;text-align:center;color:var(--muted);margin-top:12px}.question-diagram table{margin:0}.question-diagram text{font-family:'DM Sans',system-ui,sans-serif}.teacher_review{background:#fff6d8!important;border-color:#e8d99e!important}.number-button.teacher_review.active{color:var(--ink)}
@media(max-width:650px){.practice-grid{grid-template-columns:1fr}.lesson-sequence{gap:16px 8px}.sequence-step{gap:8px}.sequence-step>span{width:27px;height:27px;flex-shrink:0}.sequence-step strong{font-size:10px}.question-diagram{padding:12px;margin-inline:0}}
.review-rubric{padding:13px 16px;background:#f8f6eb;border:1px solid #e7e0c4;border-radius:10px;font-size:11px;margin:18px 0;color:#78613c}.review-rubric ul{padding-left:18px;margin:8px 0 0}.review-rubric li+li{margin-top:4px}
.tabs{overflow-x:auto}.tab{flex-shrink:0}.teaching-day>summary{display:flex;gap:14px;align-items:center;cursor:pointer;list-style:none}.teaching-day>summary strong{display:block;font-size:14px}.teaching-day>summary small{display:block;font-size:10px;color:var(--muted);margin-top:5px}.teaching-day>summary:after{content:'+';margin-left:auto;font-size:22px;color:var(--teal)}.teaching-day[open]>summary:after{content:'−'}.teaching-day-body{margin-top:23px;border-top:1px solid var(--line);padding-top:21px}.teaching-day-body h3{font-size:15px;margin-bottom:10px}.teaching-day-body>.worked-example p{font-size:12px;color:var(--muted);line-height:1.8}.teaching-slide{border:1px solid var(--line);border-radius:11px;margin:12px 0;overflow:hidden}.teaching-slide>summary{display:flex;gap:11px;align-items:center;cursor:pointer;padding:15px;list-style:none;background:#fafbf8}.teaching-slide>summary strong{font-size:12px;flex:1;font-weight:600}.teaching-slide>summary .badge{font-size:8px}.slide-number{font-size:10px;background:#e9efe5;border-radius:6px;width:28px;height:28px;display:grid;place-items:center;flex-shrink:0;color:var(--teal);font-weight:700}.slide-body{padding:20px}.slide-content{padding:20px;background:var(--navy);border-radius:11px;color:#f0f5f2;line-height:1.9;font-size:13px;margin-bottom:14px}.teaching-notes{margin:20px 0}.teaching-notes>div{display:grid;grid-template-columns:100px 1fr;gap:15px;padding:13px 0;border-bottom:1px solid #edf1e9}.teaching-notes dt{font-size:10px;font-weight:700;color:var(--teal);text-transform:uppercase;letter-spacing:.7px}.teaching-notes dd{margin:0;font-size:12px;line-height:1.8;color:#52676d}
@media(max-width:650px){.teaching-day>summary{gap:10px}.teaching-day>summary strong{font-size:12px}.teaching-slide>summary{padding:12px;gap:8px;flex-wrap:wrap}.teaching-slide>summary strong{font-size:11px;min-width:150px}.slide-body{padding:15px}.teaching-notes>div{grid-template-columns:1fr;gap:7px}.slide-content{padding:16px;font-size:12px}}
@media print{.sidebar,.topbar,.footer,.answer-toolbar,.preview-notice,.tabs{display:none}.workspace{margin:0}main{padding:15px}.card,.question-card,.learn-card,.week-panel{break-inside:avoid;box-shadow:none}.hero{background:white;color:black}}