@import url('fonts.css');
:root{--blue:#2838ce;--blue-hover:#1e2aab;--ink:#172342;--muted:#69748c;--line:#e5e9f1;--page:#f6f8fc;--white:#fff;--soft:#ecf0ff;--green:#147c60;--radius:18px;--shadow:0 8px 30px #1b285407;font-family:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;color:var(--ink);font-synthesis:none;line-height:1.55;font-size:16px;scroll-behavior:smooth}
.demo-badge{display:inline-flex;align-items:center;gap:7px;border:1px solid #cad5ff;background:#f2f5ff;color:#4059ab;border-radius:999px;padding:7px 11px;font:600 .7rem/1 inherit;cursor:pointer;text-transform:capitalize}.demo-badge:hover{background:#e8edff}.demo-badge .icon{width:15px;height:15px}.demo-chooser{background:#f5f7ff;border:1px solid #dfe5ff;border-radius:14px;padding:19px;margin:18px 0 24px}.demo-chooser>h3{font-size:1.05rem;margin:5px 0}.demo-chooser>p:not(.eyebrow){font-size:.78rem;margin:0 0 15px}.demo-role-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:9px}.demo-role{display:flex;flex-direction:column;align-items:flex-start;gap:5px;text-align:left;border:1px solid #d9e0f7;background:white;color:var(--ink);border-radius:10px;padding:13px 11px;cursor:pointer;min-width:0}.demo-role:hover{border-color:#91a5ee;box-shadow:0 5px 16px #364e9c14}.demo-role .icon{width:19px;height:19px;color:var(--blue);margin-bottom:3px}.demo-role strong{font-size:.78rem}.demo-role small{font-size:.65rem;line-height:1.4;color:#7a859c}.remember-row{display:flex;align-items:center;gap:10px;flex-direction:row;margin:3px 0 19px;font-weight:500}.remember-row input{width:17px;height:17px;min-height:17px;margin:0;accent-color:var(--blue)}.remember-row span{font-size:.78rem}.resource-manager{border-top:1px solid var(--line);margin-top:28px;padding-top:26px}.resource-manager form{background:#f8f9fc;border:1px solid var(--line);border-radius:12px;padding:18px;margin-bottom:18px}.file-picker input{padding:10px;background:#fff}.file-picker small{display:block;margin-top:7px;color:#8993a7;font-weight:400}.resource-list{display:flex;flex-direction:column;gap:9px}.resource-row{display:grid;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:13px;border:1px solid var(--line);background:#fff;border-radius:11px;padding:13px}.resource-row>div{min-width:0}.resource-row strong,.resource-row small{display:block;overflow-wrap:anywhere}.resource-row strong{font-size:.82rem}.resource-row small{color:#8791a5;font-size:.68rem;margin-top:4px}.resource-icon{display:grid;place-items:center;width:39px;height:39px;border-radius:8px;background:#fff0f1;color:#a64450;font-size:.62rem;font-weight:750;letter-spacing:.05em}.resource-empty{font-size:.78rem;line-height:1.65;color:#7f899c;background:#fafbfe;border:1px dashed #dce1ec;border-radius:10px;padding:14px}.resources-section,.lesson-resources{margin-top:32px;border-top:1px solid var(--line);padding-top:28px}.lesson-resources>h2{display:flex;align-items:center;gap:10px;font-size:1.15rem}.lesson-resources>h2 .icon{width:20px}.text-button.danger{color:#a64753}
@media(max-width:700px){.demo-badge{font-size:0;width:70px;height:38px;padding:0;justify-content:center}.demo-badge span{display:none}.demo-badge:after{content:'Demo';font-size:.7rem}.demo-badge .icon{width:17px;height:17px}.demo-role-grid{grid-template-columns:1fr}.resource-row{grid-template-columns:auto minmax(0,1fr)}.resource-row>.btn,.resource-row>.text-button{grid-column:2;justify-self:start}}
*{box-sizing:border-box}body{margin:0;background:var(--page)}button,input,select,textarea{font:inherit}button,a,input,textarea,select{-webkit-tap-highlight-color:transparent}a{color:inherit;text-decoration:none}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.55}button{color:inherit}h1,h2,h3,p{margin-top:0}h1{font-size:clamp(2rem,3.15vw,3.4rem);line-height:1.13;letter-spacing:-.055em;font-weight:700;margin-bottom:18px}h2{font-size:1.45rem;line-height:1.3;letter-spacing:-.035em;margin-bottom:12px}h3{font-size:1.2rem;line-height:1.35;letter-spacing:-.02em}p{color:var(--muted)}:focus-visible{outline:3px solid #8f9cff;outline-offset:4px}::selection{background:#d8ddff}small{font-size:.8125rem}button{border:0;background:none}svg.icon{width:21px;height:21px;flex-shrink:0;vertical-align:middle}.skip-link{position:fixed;top:-80px;left:20px;background:white;padding:14px;z-index:100}.skip-link:focus{top:12px}.sidebar{width:252px;position:fixed;inset:0 auto 0 0;background:var(--white);border-right:1px solid var(--line);padding:34px 22px 20px;display:flex;flex-direction:column;z-index:30}.brand{display:flex;gap:10px;align-items:center;font-size:1.65rem;font-weight:750;letter-spacing:-.06em;margin:0 12px 47px}.brand-mark{display:inline-flex;align-items:center;justify-content:center;background:var(--blue);color:white;border-radius:13px;width:44px;height:44px;font-weight:700;font-size:1.8rem;letter-spacing:-.06em;line-height:1}.brand-dot{color:var(--blue)}.nav-label{font-size:.6875rem;letter-spacing:.11em;font-weight:700;color:#9299aa;margin:0 14px 15px}.nav-label.spaced{margin-top:34px}.nav-item{padding:13px 14px;margin-bottom:7px;border-radius:10px;display:flex;align-items:center;gap:12px;color:#737d91;font-size:.9rem;font-weight:550}.nav-item:hover{background:#f7f8fc;color:var(--ink)}.nav-item.active{background:#edf0ff;color:var(--blue);font-weight:650}.nav-indicator{margin-left:auto;width:5px;height:5px;background:var(--blue);border-radius:10px}.sidebar-bottom{margin-top:auto;padding-top:26px}.little-card{background:#f5f7fd;border:1px solid #eef0f8;border-radius:14px;padding:20px 17px;margin-bottom:22px}.little-card>.icon{color:var(--blue);margin-bottom:13px}.little-card strong{display:block;font-size:1.06rem;line-height:1.35;letter-spacing:-.025em}.little-card p{font-size:.8rem;line-height:1.6;margin:9px 0 0}.sidebar-signup{font-size:.85rem;font-weight:600;display:flex;align-items:center;gap:9px;padding:0 7px 23px}.sidebar-signup .icon{width:18px}.sidebar-foot{font-size:.72rem;color:#9198a6;display:flex;justify-content:space-between;border-top:1px solid var(--line);padding-top:20px;margin:0 6px}.workspace{margin-left:252px;min-height:100vh;display:flex;flex-direction:column}.topbar{height:85px;background:#ffffffcc;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 48px}.top-left,.top-actions{display:flex;align-items:center;gap:23px}.breadcrumb{color:#939aab;font-size:.85rem}.top-actions{font-size:.875rem}.welcome-small{font-weight:600}.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:47px;border-radius:9px;padding:12px 21px;font-size:.875rem;font-weight:600;border:1px solid transparent;line-height:1.3;text-align:center;transition:background .15s,transform .15s;white-space:normal}.btn:not(:disabled):hover{transform:translateY(-1px)}.btn-primary{color:white;background:var(--blue)}.btn-primary:hover{background:var(--blue-hover)}.btn-outline{background:white;border-color:#dfe4f0;color:var(--ink)}.btn-outline:hover{background:#f6f7fc}.btn-soft{background:var(--soft);color:var(--blue)}.btn-white{color:var(--blue);background:white}.btn.small{min-height:39px;padding:9px 14px;font-size:.8125rem}.btn.full{width:100%}.btn .icon{width:18px;height:18px}.text-link{color:var(--blue);font-weight:600;display:inline-flex;align-items:center;gap:8px}.text-link:hover{text-decoration:underline}.text-button{padding:0;font-size:.875rem;color:var(--blue);font-weight:600}.icon-btn{width:38px;height:38px;border-radius:9px;display:inline-flex;align-items:center;justify-content:center}.icon-btn:hover{background:#f0f3fa}.mobile-only{display:none}#main{width:100%;max-width:1550px;padding:46px 48px 64px;flex:1;outline:none}.page-heading{display:flex;justify-content:space-between;align-items:center;gap:25px;margin-bottom:29px}.page-heading .subtext{margin-bottom:0;font-size:.9375rem;line-height:1.65}.eyebrow{font-size:.6875rem;letter-spacing:.15em;font-weight:750;color:var(--blue);margin-bottom:13px}.explore-banner{display:grid;grid-template-columns:1.3fr 1fr;background:#293bcc;color:white;border-radius:20px;padding:36px 43px;gap:25px;margin-bottom:45px;position:relative;overflow:hidden}.explore-banner h2{font-size:2.25rem;line-height:1.12;letter-spacing:-.05em;margin:18px 0 13px}.explore-banner p{font-size:.875rem;color:#d4dbff;line-height:1.7;margin-bottom:24px}.pill{display:inline-block;background:#ffffff1c;border:1px solid #ffffff25;border-radius:30px;padding:5px 10px;font-size:.625rem;font-weight:600;letter-spacing:.13em}.banner-detail{display:flex;flex-direction:column;justify-content:center;gap:23px;border-left:1px solid #ffffff28;padding-left:44px;margin:9px 0}.step-note{display:grid;grid-template-columns:42px 1fr;column-gap:14px;align-items:center}.step-note>span{grid-row:1 / 3;display:grid;place-items:center;width:42px;height:42px;border-radius:12px;background:#ffffff15;color:#cfd6ff;font-size:.8125rem;font-weight:600}.step-note strong{font-size:.9rem;font-weight:600}.step-note small{font-size:.75rem;color:#c2cbff;margin-top:4px}.section-heading{display:flex;justify-content:space-between;align-items:center;gap:20px;margin-bottom:24px}.section-heading h2{margin-bottom:0;font-size:1.375rem}.section-heading p{font-size:.8125rem;margin:7px 0 0}.section-heading>span{font-size:.875rem;color:var(--muted)}.search-box{background:white;border:1px solid var(--line);border-radius:9px;display:flex;align-items:center;gap:10px;padding:0 13px;max-width:285px;width:100%;min-height:44px;margin:0}.search-box>.icon{color:#9099ac;width:18px}.search-box input{background:none;border:0!important;outline:0;font-size:.8125rem;padding:12px 0;width:100%;min-width:0;box-shadow:none!important}.filter-row{display:flex;gap:9px;flex-wrap:wrap;margin-bottom:25px}.chip{border:1px solid var(--line);background:white;border-radius:7px;padding:9px 16px;font-size:.8125rem;font-weight:500;color:#718099;min-height:39px}.chip.active{background:var(--ink);color:white;border-color:var(--ink)}.chip:hover:not(.active){border-color:#9ca9ed;color:var(--blue)}.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:46px 24px;border:1px dashed #dbe0ec;border-radius:var(--radius);background:#ffffffaa;min-height:235px}.empty-icon{display:grid;place-items:center;width:59px;height:59px;border-radius:17px;background:#eef1ff;color:var(--blue);margin-bottom:18px}.empty-icon>.icon{width:27px;height:27px}.empty-state h2{font-size:1.15rem;margin-bottom:9px}.empty-state p{font-size:.875rem;max-width:420px;line-height:1.7;margin-bottom:0}.empty-state .btn,.empty-state .text-link{margin-top:21px}.empty-state .text-link{font-size:.875rem}.subject-section{margin-top:39px}.subject-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:15px}.subject-card{background:white;border:1px solid var(--line);border-radius:13px;padding:21px;text-align:left;display:flex;flex-direction:column;align-items:flex-start;transition:border-color .15s}.subject-card:hover{border-color:#bcc5f9}.subject-icon{display:grid;place-items:center;width:40px;height:40px;border-radius:11px;margin-bottom:17px}.tone-blue{background:#eaf0ff;color:#3e6adb}.tone-green{background:#e9f6ef;color:#228461}.tone-purple{background:#f2edff;color:#8254d7}.tone-orange{background:#fff2e7;color:#c47a39}.subject-card strong{font-size:.875rem;line-height:1.4;margin-bottom:9px}.subject-card>span:not(.subject-icon){font-size:.75rem;color:var(--muted);line-height:1.6;flex:1}.subject-card>.icon{margin-top:20px;width:17px;height:17px;color:#8c97b0}.footer{display:flex;justify-content:space-between;padding:24px 48px;border-top:1px solid var(--line);font-size:.75rem;color:#929aad}.course-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:23px}.course-card{background:white;border:1px solid var(--line);border-radius:15px;overflow:hidden;box-shadow:var(--shadow)}.course-cover{height:165px;display:flex;padding:20px;position:relative;justify-content:space-between;align-items:flex-start;overflow:hidden}.cover-blue{background:#e7efff;color:#3261bc}.cover-green{background:#def4e9;color:#208664}.cover-purple{background:#eee6ff;color:#7645c0}.cover-orange{background:#fff0dd;color:#b87321}.cover-subject{font-size:.625rem;text-transform:uppercase;letter-spacing:.12em;font-weight:700;max-width:140px}.cover-icon{position:absolute;bottom:22px;left:20px}.cover-icon .icon{width:62px;height:62px;stroke-width:1.1}.cover-corner{font-size:4rem;letter-spacing:-.08em;opacity:.2;position:absolute;bottom:10px;right:20px;font-weight:800}.course-body{padding:22px}.course-tags{display:flex;justify-content:space-between;font-size:.625rem;font-weight:650;text-transform:uppercase;letter-spacing:.04em;color:var(--muted);gap:10px;margin-bottom:12px}.course-body h3{margin-bottom:10px}.course-body h3 a:hover{color:var(--blue)}.course-body>p{font-size:.8125rem;line-height:1.7;min-height:44px;margin-bottom:20px}.course-meta{display:flex;gap:20px;font-size:.75rem;color:#7a869e}.course-meta span{display:flex;align-items:center;gap:6px}.course-meta .icon{width:15px;height:15px}.course-foot{margin-top:19px;padding-top:15px;border-top:1px solid var(--line);display:flex;justify-content:space-between;align-items:center;font-size:.75rem}.course-foot>span{display:flex;align-items:center;gap:8px}.mini-avatar{width:26px;height:26px;display:inline-grid;place-items:center;background:#f3f1ee;border-radius:50%;color:#9c805c;font-size:.625rem;font-weight:600}.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-bottom:40px}.stats-grid.three{grid-template-columns:repeat(3,1fr)}.stat-card{background:white;border:1px solid var(--line);border-radius:15px;padding:25px;display:flex;flex-direction:column;position:relative}.stat-card>.icon{color:#8996ba;position:absolute;right:22px;top:23px}.stat-card>strong{font-size:2rem;letter-spacing:-.04em;font-weight:650;margin-bottom:5px}.stat-card>strong small{font-size:1rem;color:var(--muted);font-weight:400}.stat-card>span{font-size:.8rem;color:var(--muted)}.count{font-size:.75rem;background:#e9edf7;color:#7180a1;vertical-align:middle;border-radius:7px;padding:4px 8px;margin-left:7px;letter-spacing:0}.progress-label{margin-top:22px;display:flex;justify-content:space-between;font-size:.75rem;color:var(--muted);margin-bottom:8px}.progress-label strong{color:var(--blue)}progress{appearance:none;width:100%;height:6px;border:0;border-radius:8px;overflow:hidden;display:block;margin:0 0 19px;background:#e9edf6}progress::-webkit-progress-bar{background:#e9edf6}progress::-webkit-progress-value{background:var(--blue);border-radius:8px}progress::-moz-progress-bar{background:var(--blue);border-radius:8px}.panel{background:white;border:1px solid var(--line);border-radius:16px;padding:28px}.two-columns{display:grid;grid-template-columns:1.2fr 1fr;gap:24px}.activity{display:flex;align-items:center;gap:14px;padding:19px 0;border-bottom:1px solid var(--line)}.activity:last-child{border-bottom:0}.activity-icon{background:#eaf5f0;color:var(--green);width:37px;height:37px;border-radius:50%;display:grid;place-items:center}.activity strong{font-size:.875rem}.activity p{font-size:.75rem;margin:3px 0 0}.activity time{margin-left:auto;font-size:.6875rem;color:var(--muted);white-space:nowrap}.score{font-size:.85rem;background:#fff0e1;color:#a56e2c;padding:10px;border-radius:9px;font-weight:650}.score.pass{background:#e6f6ef;color:var(--green)}.panel .empty-state{border:0;padding:35px 10px;min-height:245px}.fine-print{font-size:.75rem;color:#8c96a9;line-height:1.7;margin-top:15px}.center{text-align:center}.success-text{color:var(--green)}.avatar{display:inline-flex;align-items:center;justify-content:center;background:#eaedff;color:var(--blue);width:43px;height:43px;border-radius:12px;flex-shrink:0;font-size:.8125rem;font-weight:700}.avatar-small{width:34px;height:34px;border-radius:50%;font-size:.7rem}.profile-button{display:flex;align-items:center;width:100%;padding:0 6px 20px;text-align:left;gap:11px}.profile-button>span:nth-child(2){display:flex;flex-direction:column;min-width:0;flex:1}.profile-button strong{font-size:.75rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.profile-button small{font-size:.6875rem;color:var(--muted);text-transform:capitalize}.profile-button>.icon{width:15px;color:#929bb1}.back-link{display:inline-block;font-size:.85rem;color:var(--muted);margin-bottom:28px}.back-link:hover{color:var(--blue)}.course-detail{display:grid;grid-template-columns:minmax(0,1fr) 325px;gap:50px;align-items:start}.course-detail h1{font-size:2.8rem}.course-detail .page-heading{margin-bottom:22px}.course-description{line-height:1.85;font-size:1rem;margin-bottom:28px}.instructor-line{display:flex;gap:13px;align-items:center;margin-bottom:38px}.instructor-line>span:last-child{display:flex;flex-direction:column;gap:3px}.instructor-line small{color:var(--muted);font-size:.75rem}.instructor-line strong{font-size:.875rem}.curriculum{background:white;border:1px solid var(--line);border-radius:15px;padding:25px}.curriculum .section-heading{margin-bottom:14px}.lesson-row{display:flex;align-items:center;gap:16px;padding:18px 0;border-bottom:1px solid var(--line)}.lesson-row:last-child{border-bottom:0}.lesson-row>div{flex:1;min-width:0}.lesson-row strong{display:block;font-size:.875rem;line-height:1.5}.lesson-row div>span{display:block;color:var(--muted);font-size:.75rem;margin-top:3px}.lesson-num{display:flex;align-items:center;justify-content:center;width:33px;height:33px;background:#f2f5fa;border-radius:8px;font-size:.75rem;color:#8490aa;flex-shrink:0}.lesson-num.done,.outline-icon.done{background:#e7f5ed;color:var(--green)}.lesson-time{font-size:.75rem;color:var(--muted);white-space:nowrap}.lesson-row>.icon{color:#9ca7bd;width:16px}.enroll-panel{background:white;border:1px solid var(--line);border-radius:16px;overflow:hidden;position:sticky;top:24px}.enroll-art{display:flex;justify-content:space-between;align-items:center;padding:35px 27px;min-height:185px}.enroll-art>.icon{width:74px;height:74px;stroke-width:1}.enroll-art>span{font-size:1.25rem;font-weight:600;line-height:1.4;letter-spacing:-.04em}.enroll-body{padding:28px}.enroll-body h2{font-size:1.3rem}.course-benefits{list-style:none;padding:5px 0;margin:0 0 20px}.course-benefits li{display:flex;gap:10px;align-items:center;font-size:.8rem;color:var(--muted);margin:14px 0}.course-benefits .icon{width:17px;color:#798ac1}.learn-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:30px;align-items:start}.lesson-content{background:white;border:1px solid var(--line);border-radius:16px;padding:34px}.lesson-content h1{font-size:2.2rem;margin:21px 0 29px}.lesson-top{display:flex;justify-content:space-between;gap:20px;align-items:center}.lesson-top .eyebrow{margin:0}.muted{color:var(--muted);font-size:.8125rem}.muted .icon{width:16px;margin-right:6px}.reading-content{font-size:1rem;line-height:1.95;overflow-wrap:anywhere}.reading-content p{color:#46546f;margin-bottom:22px}.lesson-video{width:100%;aspect-ratio:16/9;border:0;border-radius:12px;margin-bottom:28px;background:#172342}.lesson-actions{display:flex;justify-content:space-between;gap:14px;align-items:center;border-top:1px solid var(--line);padding-top:25px;margin-top:35px}.notes-section{margin-top:38px;border-top:1px solid var(--line);padding-top:30px}.notes-section h2{font-size:1.1rem}.notes-section h2>.icon{width:18px;margin-right:6px}.notes-section>p{font-size:.8rem}.lesson-outline{background:white;border:1px solid var(--line);border-radius:15px;padding:23px 18px;position:sticky;top:25px}.outline-header{display:flex;justify-content:space-between;gap:12px;margin-bottom:17px;padding:0 4px}.outline-header strong{font-size:.875rem}.outline-header>span{font-size:.7rem;color:var(--muted)}.outline-item{display:flex;gap:12px;align-items:center;padding:14px 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