:root{--blue:#006bff;--ink:#101f40;--muted:#63748e;--line:#e3eaf3;--pale:#eff6ff;--surface:#fff;--green:#268568}*{box-sizing:border-box}body{margin:0;background:#f8fafd;color:var(--ink);font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;font-size:15px;line-height:1.55}a{color:inherit;text-decoration:none}button,input,textarea{font:inherit}button,a,input,textarea,summary{touch-action:manipulation}button{cursor:pointer}button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible,summary:focus-visible{outline:3px solid #7fb8ff;outline-offset:3px}button{border:0;background:none;color:inherit}h1,h2,h3,p{margin-top:0}h1{font-size:32px;letter-spacing:-1px;line-height:1.25;margin-bottom:14px}h2{font-size:21px;letter-spacing:-.4px}h3{font-size:17px;line-height:1.4}small{font-size:12px;color:var(--muted)}.sidebar{position:fixed;inset:0 auto 0 0;width:230px;background:white;border-right:1px solid var(--line);padding:32px 20px;display:flex;flex-direction:column;z-index:15}.brand{display:flex;gap:12px;align-items:center;font-size:17px;line-height:1.08;font-weight:850;letter-spacing:-.3px}.brand small{display:block;font-weight:400;letter-spacing:0;font-size:9px;margin-top:9px}.brand-icon{display:grid;place-items:center;border-radius:50%;width:45px;height:45px;background:var(--blue);color:white;font-size:26px;flex-shrink:0}.sidebar nav{margin-top:52px}.nav-item{padding:13px 15px;display:flex;gap:16px;border-radius:8px;margin-bottom:7px;color:#465d7c;font-weight:550;font-size:14px}.nav-item span{font-size:22px;line-height:1}.nav-item.active{color:var(--blue);background:#eaf3ff;box-shadow:-3px 0 var(--blue)}.nav-item:hover{background:var(--pale)}.sidebar-bottom{margin-top:auto;font-size:12px;color:var(--muted);padding:18px 10px}.sidebar-bottom p{margin-top:22px}.status-dot{display:inline-block;width:7px;height:7px;border-radius:50%;background:var(--green);margin-right:5px}.workspace{margin-left:230px;min-height:100vh}header{height:92px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:24px;background:#ffffffed;padding:0 42px;position:sticky;top:0;z-index:10;backdrop-filter:blur(12px)}.search-wrap{display:flex;gap:12px;align-items:center;background:#f5f8fc;border:1px solid var(--line);padding:0 15px;border-radius:9px;width:min(540px,70%);height:43px;color:var(--muted)}.search-wrap span{font-size:25px}.search-wrap input{border:0;outline:none;background:none;width:100%;font-size:13px;color:var(--ink)}.search-wrap input::placeholder{color:#8291a8}.account{display:flex;align-items:center;gap:10px;font-size:13px;font-weight:600}.account small{display:block;font-size:10px;font-weight:400}.avatar{border:3px solid #eef3fb;border-radius:50%;width:37px;height:37px;background:#dce8f6;display:grid;place-items:center;color:#365478}.icon-button{font-size:23px;padding:6px 10px;border-radius:7px}.icon-button:hover{background:#eff4fa}.mobile-menu{display:none}main{padding:38px 42px 60px;max-width:1550px;margin:auto;min-height:80vh}.eyebrow{font-size:10px;color:#6e83a0;letter-spacing:1.8px;font-weight:700;margin-bottom:10px}.page-title{display:flex;justify-content:space-between;align-items:center;gap:20px}.page-title p,.course-hero p{color:var(--muted);max-width:690px;margin-bottom:22px}.count-pill{white-space:nowrap;border:1px solid var(--line);border-radius:20px;padding:7px 13px;background:white;color:var(--muted);font-size:12px}.track-tabs{display:flex;gap:10px;margin:10px 0 27px}.track-tabs button{background:#edf2f8;border:1px solid transparent;border-radius:9px;padding:13px 22px;font-size:13px;font-weight:650;flex:1}.track-tabs button:hover{border-color:#c5daf7}.track-tabs button.selected{background:var(--blue);color:white;box-shadow:0 4px 10px #006bff1c}.intro-strip,.continue{border:1px solid var(--line);border-radius:13px;background:white;padding:24px;display:flex;align-items:center;gap:28px;margin-bottom:32px}.intro-strip>div:first-child{flex:1}.intro-strip p,.continue p{color:var(--muted);font-size:13px;margin:6px 0 0}.mini-stat{padding-left:25px;border-left:1px solid var(--line);min-width:100px}.mini-stat b{display:block;font-size:27px;line-height:1.2}.mini-stat span{font-size:11px;color:var(--muted)}.continue-icon{background:#e5f0ff;color:var(--blue);padding:20px 26px;border-radius:10px;font-size:23px}.continue>div:nth-child(2){flex:1}.continue h3{margin:4px 0}.button,.secondary{display:inline-flex;align-items:center;justify-content:center;gap:10px;border-radius:7px;padding:12px 20px;background:var(--blue);color:white;font-weight:600;font-size:13px;white-space:nowrap}.button:hover{background:#0056d2}.button.done{background:var(--green)}.secondary{border:1px solid var(--line);background:white;color:#3d587b}.section-title{display:flex;justify-content:space-between;align-items:center;margin:23px 0 17px}.section-title h2{margin:0}.section-title>span{font-size:12px;color:var(--muted)}.course-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}.course-card{border:1px solid var(--line);border-radius:12px;background:white;overflow:hidden;transition:transform .2s,box-shadow .2s}.course-card:hover{transform:translateY(-3px);box-shadow:0 10px 30px #1f437813}.course-art{height:145px;padding:24px 26px;background:#e4f0ff;position:relative;overflow:hidden;display:flex;justify-content:space-between;align-items:center;color:#0654b0}.course-art.sales{background:#e9effc;color:#4056b3}.course-art.season{background:#f5f0df;color:#96712b}.course-art.marketing{background:#e1efed;color:#2c7975}.art-label{font-weight:800;letter-spacing:1px;font-size:14px;max-width:60%;z-index:1}.art-symbol{font-size:65px;opacity:.6;z-index:1;line-height:1}.art-lines{position:absolute;width:240px;height:240px;right:-60px;bottom:-125px;border:30px solid #ffffff5e;border-radius:50%;box-shadow:0 0 0 30px #ffffff2e,0 0 0 60px #ffffff18}.card-body{padding:22px 25px}.badge{display:inline-block;font-size:10px;font-weight:600;background:#f1f6fc;border:1px solid var(--line);border-radius:4px;padding:3px 7px;margin-bottom:12px}.card-body h3{margin-bottom:10px;font-size:19px}.card-body p{font-size:13px;color:var(--muted);min-height:40px}.card-meta{display:flex;justify-content:space-between;color:#5b7090;font-size:11px;margin:23px 0 16px}.progress-track{height:5px;border-radius:5px;background:#eaf0f8;overflow:hidden}.progress-track i{display:block;height:100%;background:var(--blue);border-radius:5px}.card-body>small{display:block;margin-top:8px;font-size:10px}.help-box{margin-top:30px;padding:22px 25px;background:#edf4fc;border:1px solid #dbe9f9;border-radius:10px;font-size:13px;color:#4a6382}.help-box p{margin:7px 0 0}.breadcrumbs{font-size:12px;color:var(--muted);margin-bottom:28px}.breadcrumbs a{color:#45658d}.course-hero{display:grid;grid-template-columns:1fr 250px;gap:55px;padding:12px 0 37px;border-bottom:1px solid var(--line)}.course-hero h1{max-width:700px}.hero-summary{border-radius:12px;background:linear-gradient(140deg,#e8f3ff,#f2f6fc);padding:25px 28px;color:#526c8c}.hero-summary p{font-size:12px;margin:12px 0}.big-icon{display:block;font-size:68px;color:var(--blue);line-height:1.4}.course-progress{display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;font-size:12px;margin:25px 0;color:var(--muted)}.course-progress .progress-track{flex-basis:100%}.course-progress b{font-size:11px;font-weight:500}.text-button{color:var(--blue);font-size:12px}.module{border:1px solid var(--line);border-radius:10px;background:white;margin-bottom:13px;overflow:hidden}.module summary{display:flex;gap:17px;align-items:center;padding:17px 19px;background:#f2f6fb;cursor:pointer;list-style:none}.module summary::-webkit-details-marker{display:none}.module-number{color:#7790b1;font-size:12px}.module summary strong{font-size:14px;flex:1}.module summary>span:nth-last-child(2){font-size:11px;color:var(--muted);white-space:nowrap}.module summary i{font-size:19px;font-style:normal}.lesson-row{display:flex;align-items:center;gap:13px;padding:15px 19px;border-bottom:1px solid #edf1f7;transition:background .15s}.lesson-row:hover{background:#f2f7ff}.lesson-row>span:nth-child(2){flex:1}.lesson-row b{font-size:13px;font-weight:550;display:block}.lesson-row small{display:block;font-size:10px;margin-top:4px}.lesson-icon{background:#eaf3ff;color:var(--blue);width:28px;height:28px;border-radius:6px;display:grid;place-items:center;font-size:11px;flex-shrink:0}.lesson-icon.complete{background:#e7f5ee;color:var(--green)}.row-end{font-size:10px;color:#6980a0;white-space:nowrap}.lesson-layout{display:grid;grid-template-columns:245px minmax(0,1fr);gap:32px}.lesson-nav{background:white;border:1px solid var(--line);border-radius:9px;align-self:start;max-height:77vh;overflow:auto;position:sticky;top:115px}.lesson-nav-head{padding:19px 16px;font-size:13px;font-weight:700;border-bottom:1px solid var(--line)}.lesson-nav details>summary{font-size:11px;font-weight:600;padding:13px;cursor:pointer}.lesson-nav details>a{display:flex;gap:10px;padding:12px 13px;font-size:10px;color:#556d8b;border-top:1px solid #f3f6fa}.lesson-nav details>a.current{color:var(--blue);background:#eaf3ff;font-weight:600}.lesson-title{display:flex;gap:15px;justify-content:space-between;align-items:start}.lesson-title h1{font-size:26px;margin-top:6px;margin-bottom:23px;letter-spacing:-.6px}.favorite{color:#7b8ba4}.favorite.on{color:#d69a22}.video-container{background:#0b1525;border-radius:10px;overflow:hidden;color:white}.video-container video{display:block;width:100%;max-height:530px;aspect-ratio:16/9;background:#101b2d}.video-hint{font-size:11px;color:#b5c6dc;padding:11px 15px;display:flex;justify-content:space-between;gap:15px}.player-help{font-size:11px;color:var(--muted);margin:10px 0 15px}.player-help a{color:var(--blue)}.lesson-tabs{display:flex;border-bottom:1px solid var(--line);margin-top:18px;gap:12px}.lesson-tabs button{padding:14px 8px;font-size:12px;color:#5a7292;border-bottom:2px solid transparent}.lesson-tabs button.active{border-bottom-color:var(--blue);color:var(--blue);font-weight:600}.lesson-text{white-space:pre-wrap;font:14px/1.9 Inter,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:#3b526e;padding:25px 0;overflow-wrap:anywhere}.file-list{padding:20px 0}.file-card{display:flex;align-items:center;gap:13px;border:1px solid var(--line);border-radius:8px;background:white;padding:14px;margin-bottom:10px}.file-card>div{flex:1}.file-card strong{font-size:12px;display:block}.file-card small{display:block;font-size:10px}.pdf-icon{font-size:9px;font-weight:700;background:#f15a57;color:white;padding:8px 5px;border-radius:4px}.file-card>span:last-child{color:var(--blue)}.note-box{margin-top:25px;border-top:1px solid var(--line);padding-top:23px}.note-box label{font-weight:650;font-size:13px}.note-box>p{color:var(--muted);font-size:11px;margin:6px 0 12px}textarea{width:100%;border:1px solid var(--line);border-radius:7px;background:white;padding:14px;color:var(--ink);resize:vertical;min-height:110px;font-size:13px}.note-actions{display:flex;justify-content:space-between;align-items:center;margin-top:10px;gap:15px}.note-actions small{font-size:10px}.lesson-bottom{display:flex;justify-content:space-between;align-items:center;padding:28px 0}.document-banner{background:#eaf3ff;border:1px solid #d9e8fc;border-radius:10px;padding:25px;display:flex;gap:20px;align-items:center}.document-banner>span{font-size:40px;color:var(--blue)}.document-banner p{font-size:12px;color:var(--muted);margin:5px 0 0}.empty-inline{padding:25px 0;font-size:13px;color:var(--muted)}.empty-inline p{margin:6px 0 0}.empty-state{text-align:center;border:1px dashed #d9e4f1;border-radius:14px;background:white;padding:65px 25px;margin:30px 0;color:var(--muted)}.empty-state>span{font-size:50px;display:block;color:#a7bfdc;margin-bottom:15px}.empty-state p{font-size:13px;max-width:470px;margin:15px auto 25px}.collection{background:white;border:1px solid var(--line);border-radius:10px;margin-top:25px;overflow:hidden}.note-excerpt{margin:0;padding:0 60px 20px;white-space:pre-wrap;font-size:13px;color:#566c89}.muted{color:var(--muted);font-size:13px}.search-results{margin-top:27px}.search-result{display:block;background:white;border:1px solid var(--line);border-radius:10px;padding:23px;margin-bottom:13px}.search-result:hover{border-color:#aacdfa}.search-result h3{margin:7px 0}.search-result p{font-size:13px;color:var(--muted);line-height:1.8}.search-result>span{font-size:11px;color:var(--blue)}.search-result small{font-size:10px}.login-page{min-height:100vh;display:grid;place-items:center;background:radial-gradient(at 15% 15%,#e7f1ff,transparent 60%)}.login-page form{width:min(430px,90vw);padding:40px;border:1px solid var(--line);border-radius:15px;background:white;box-shadow:0 15px 60px #254b7610}.login-page .brand-icon{margin-bottom:28px}.login-page h1{font-size:28px}.login-page p{font-size:13px;color:var(--muted)}.login-page label{display:block;font-size:12px;margin-top:25px}.login-page input{width:100%;padding:12px;border:1px solid var(--line);border-radius:7px;margin:8px 0 17px}.login-page .button{width:100%}#login-error{color:#c33;font-size:12px}footer{padding:20px 42px;border-top:1px solid var(--line);font-size:10px;color:#8b9bb0;display:flex;justify-content:space-between;gap:20px}#toast{position:fixed;bottom:25px;left:50%;transform:translate(-50%,30px);padding:13px 22px;background:#172a49;color:white;font-size:13px;border-radius:9px;box-shadow:0 8px 30px #10213e20;opacity:0;pointer-events:none;transition:opacity .2s,transform .2s;z-index:50;max-width:90vw}#toast.show{opacity:1;transform:translate(-50%,0)}.loading{padding:80px;text-align:center;color:var(--muted)}
@media(min-width:1500px){.course-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.course-grid .course-card:last-child{grid-column:auto}.course-art{height:165px}}@media(max-width:1100px){.sidebar{width:195px;padding:25px 15px}.workspace{margin-left:195px}header{padding:0 24px}main{padding:28px 25px}.brand{font-size:15px}.brand-icon{width:37px;height:37px;font-size:22px}.brand small{font-size:8px}.nav-item{font-size:12px;padding:12px}.lesson-layout{grid-template-columns:185px minmax(0,1fr);gap:20px}.course-hero{grid-template-columns:1fr 200px;gap:25px}.hero-summary{padding:20px}.track-tabs button{padding:12px 10px;font-size:11px}.lesson-title h1{font-size:23px}}
@media(max-width:760px){.sidebar{transform:translateX(-100%);width:230px;transition:transform .2s;box-shadow:8px 0 40px #10213e20}.sidebar.open{transform:translateX(0)}.workspace{margin-left:0}header{height:72px;padding:0 16px;gap:10px}.mobile-menu{display:block}.search-wrap{width:auto;flex:1;padding:0 10px}.search-wrap input{font-size:11px}.account>div,.account .icon-button{display:none}.avatar{width:31px;height:31px;font-size:11px}main{padding:26px 18px 40px}h1{font-size:27px}.eyebrow{font-size:9px}.page-title p{font-size:13px}.count-pill{display:none}.track-tabs{display:grid;grid-template-columns:1fr 1fr;gap:7px}.track-tabs button{font-size:12px;padding:12px 7px}.intro-strip{padding:20px;gap:15px;flex-wrap:wrap}.intro-strip>div:first-child{flex-basis:100%}.mini-stat{min-width:90px;border:0;padding:0}.mini-stat b{font-size:23px}.course-grid{grid-template-columns:1fr;gap:18px}.course-art{height:135px}.card-body p{min-height:0}.card-body h3{font-size:18px}.card-meta{margin-top:18px}.continue{flex-wrap:wrap;padding:18px;gap:15px}.continue-icon{padding:16px}.continue .button{width:100%}.continue h3{font-size:14px}.course-hero{display:block;padding-top:0}.hero-summary{margin-top:24px;display:flex;flex-wrap:wrap;gap:12px;align-items:center;padding:18px}.big-icon{font-size:35px;margin-right:15px}.hero-summary p{margin:0;font-size:11px}.course-hero h1{font-size:26px}.module summary{gap:10px;padding:15px 12px}.module summary strong{font-size:12px}.module summary>span:nth-last-child(2){font-size:9px}.lesson-row{padding:15px 12px;gap:10px}.lesson-row b{font-size:12px}.row-end{font-size:9px}.lesson-layout{display:flex;flex-direction:column}.lesson-nav{position:static;max-height:260px;width:100%}.lesson-nav-head{padding:12px}.lesson-nav details>summary{padding:10px}.lesson-content{width:100%}.lesson-title h1{font-size:25px}.lesson-tabs{gap:4px;justify-content:space-between}.lesson-tabs button{font-size:11px;padding:13px 5px}.lesson-text{font-size:13px;line-height:1.8}.video-hint{font-size:10px}.note-actions{flex-wrap:wrap}.note-actions .secondary{font-size:11px}.lesson-bottom{gap:10px}.lesson-bottom .button{font-size:12px;padding:12px 14px}.file-card{padding:12px 10px}.file-card strong{font-size:11px;overflow-wrap:anywhere}.search-result{padding:18px}.search-result h3{font-size:15px}.breadcrumbs{font-size:10px;line-height:1.8;overflow-wrap:anywhere}footer{padding:20px 18px;flex-direction:column;gap:5px}.note-excerpt{padding:0 20px 20px}.help-box{padding:18px;font-size:12px}}

.drive-player{border:0;display:block;width:100%;aspect-ratio:16/9;background:#101b2d}.card-body>.progress-track,.card-body>small,.course-progress{display:none}