*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,Segoe UI,Arial,sans-serif;background:#f7f8fa;color:#121316;line-height:1.5}a{text-decoration:none;color:inherit}button,input,textarea,select{font:inherit}.container{width:min(1180px,92%);margin:auto}.topbar{height:76px;background:#fff;border-bottom:1px solid #e8e9ed;display:flex;align-items:center;position:sticky;top:0;z-index:30}.nav{display:flex;align-items:center;justify-content:space-between;width:min(1180px,92%);margin:auto}.brand{font-weight:900;font-size:23px;letter-spacing:-.8px}.brand span{color:#ee101b}.navlinks{display:flex;gap:26px;align-items:center}.btn{border:0;border-radius:12px;padding:12px 18px;font-weight:800;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;gap:8px}.btn-primary{background:#ed111c;color:#fff;box-shadow:0 8px 20px rgba(237,17,28,.18)}.btn-light{background:#fff;border:1px solid #dedfe4;color:#15161a}.btn-dark{background:#15161a;color:#fff}.btn-danger{background:#fff0f1;color:#c70e18;border:1px solid #ffd2d5}.btn-sm{padding:8px 11px;border-radius:9px;font-size:13px}.hero{padding:76px 0 54px;background:linear-gradient(180deg,#fff 0,#f8f8fa 100%)}.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:56px;align-items:center}.eyebrow{font-size:12px;letter-spacing:3px;color:#e10b16;font-weight:900;text-transform:uppercase}.hero h1{font-size:70px;line-height:.98;margin:14px 0 22px;letter-spacing:-4px}.hero h1 span{color:#ed101b}.hero p{font-size:19px;color:#64666d;max-width:680px}.hero-actions{display:flex;gap:12px;margin-top:28px}.hero-card{background:#111216;color:#fff;border-radius:28px;padding:28px;min-height:390px;box-shadow:0 24px 70px rgba(0,0,0,.15);position:relative;overflow:hidden}.hero-card:after{content:"";position:absolute;width:280px;height:280px;border:1px solid #fa5660;border-radius:50%;right:-70px;top:-60px}.mock-course{position:relative;z-index:1;background:#fff;color:#111;border-radius:18px;padding:22px;margin-top:28px}.progress{height:8px;background:#ececef;border-radius:20px;overflow:hidden}.progress>span{display:block;height:100%;background:#ed101b}.feature-strip{display:grid;grid-template-columns:repeat(4,1fr);background:#121315;color:#fff}.feature-strip>div{padding:28px;text-align:center;border-right:1px solid #333}.feature-strip strong{display:block;font-size:22px}.section{padding:70px 0}.section-head{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:28px}.section h2{font-size:38px;letter-spacing:-1.8px;margin:0}.muted{color:#6c6f77}.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.course-card,.card{background:#fff;border:1px solid #e7e8ec;border-radius:18px;padding:20px;box-shadow:0 8px 30px rgba(20,24,33,.04)}.course-card h3,.card h3{margin:8px 0}.pill{display:inline-flex;padding:6px 10px;border-radius:30px;background:#fff0f1;color:#c80d17;font-size:12px;font-weight:800}.auth-page{min-height:100vh;display:grid;grid-template-columns:1fr 1fr}.auth-side{background:#111216;color:#fff;padding:70px;display:flex;flex-direction:column;justify-content:center}.auth-side h1{font-size:56px;line-height:1;margin:12px 0}.auth-panel{display:flex;align-items:center;justify-content:center;padding:40px}.auth-box{width:min(480px,100%)}.field{display:flex;flex-direction:column;gap:7px;margin-bottom:16px}.field label{font-size:13px;font-weight:800}.field input,.field textarea,.field select{width:100%;border:1px solid #dfe1e6;background:#fff;padding:13px 14px;border-radius:11px;outline:none}.field input:focus,.field textarea:focus,.field select:focus{border-color:#ed111c;box-shadow:0 0 0 3px rgba(237,17,28,.08)}.alert{padding:12px 14px;border-radius:10px;margin:12px 0}.alert-error{background:#fff0f1;color:#b10d15;border:1px solid #ffcdd1}.alert-success{background:#eefbf2;color:#17753a;border:1px solid #cbeed6}.dashboard{display:grid;grid-template-columns:260px 1fr;min-height:100vh}.sidebar{background:#111216;color:#fff;padding:22px 16px;position:sticky;top:0;height:100vh}.sidebar .brand{padding:10px 12px 28px}.side-user{padding:14px 12px;margin-bottom:18px;background:#1d1f23;border-radius:14px}.side-user small{display:block;color:#aeb1b8}.side-nav{display:flex;flex-direction:column;gap:5px}.side-nav button{border:0;background:transparent;color:#c8cad0;text-align:left;padding:12px 13px;border-radius:10px;cursor:pointer;font-weight:700}.side-nav button.active,.side-nav button:hover{background:#ed111c;color:#fff}.dashboard-main{min-width:0}.dash-top{height:72px;background:#fff;border-bottom:1px solid #e5e6ea;display:flex;align-items:center;justify-content:space-between;padding:0 28px;position:sticky;top:0;z-index:20}.dash-content{padding:28px}.page-title h1{margin:0;font-size:30px;letter-spacing:-1px}.page-title p{margin:5px 0 0;color:#73767e}.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin:22px 0}.metric{background:#fff;border:1px solid #e5e6ea;border-radius:16px;padding:18px}.metric span{font-size:12px;color:#747780;font-weight:800;text-transform:uppercase}.metric strong{font-size:30px;display:block;margin-top:5px}.panel{background:#fff;border:1px solid #e5e6ea;border-radius:18px;padding:20px;margin-top:18px}.panel-head{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-bottom:18px}.panel-head h2{font-size:20px;margin:0}.tabs{display:flex;gap:6px;flex-wrap:wrap}.tabs button{border:1px solid #e0e2e6;background:#fff;border-radius:9px;padding:9px 12px;font-weight:800;cursor:pointer}.tabs button.active{background:#ed111c;color:#fff;border-color:#ed111c}.table-wrap{overflow:auto}.table{width:100%;border-collapse:collapse}.table th,.table td{text-align:left;padding:12px;border-bottom:1px solid #eceef1;font-size:14px;vertical-align:top}.table th{font-size:11px;color:#767983;text-transform:uppercase;letter-spacing:.7px}.status{display:inline-flex;padding:5px 8px;border-radius:99px;font-size:11px;font-weight:800}.status.green{background:#eaf8ef;color:#1f7a43}.status.red{background:#fff0f1;color:#bd121b}.status.amber{background:#fff7df;color:#936b00}.form-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.form-grid .full{grid-column:1/-1}.empty{text-align:center;padding:36px;color:#777a82;border:1px dashed #d8dae0;border-radius:14px}.course-selector{display:flex;gap:8px;flex-wrap:wrap;margin:12px 0 18px}.course-selector button{border:1px solid #e0e2e6;background:#fff;padding:9px 12px;border-radius:10px;cursor:pointer}.course-selector button.active{background:#111216;color:#fff}.lesson{border:1px solid #e7e8eb;border-radius:14px;padding:15px;margin:10px 0}.lesson-top{display:flex;justify-content:space-between;gap:15px}.section-box{border-left:3px solid #ed111c;padding-left:18px;margin:18px 0}.message-layout{display:grid;grid-template-columns:260px 1fr;min-height:430px;border:1px solid #e7e8eb;border-radius:14px;overflow:hidden}.contacts{border-right:1px solid #e7e8eb;padding:10px}.contact{padding:12px;border-radius:9px;cursor:pointer}.contact.active,.contact:hover{background:#f2f3f5}.chat{display:flex;flex-direction:column}.chat-log{padding:16px;flex:1;overflow:auto;max-height:350px}.bubble{max-width:75%;padding:10px 12px;border-radius:13px;margin:8px 0;background:#f0f1f3}.bubble.me{margin-left:auto;background:#ed111c;color:#fff}.chat-compose{display:flex;gap:8px;padding:12px;border-top:1px solid #e7e8eb}.chat-compose input{flex:1;border:1px solid #dfe1e6;border-radius:10px;padding:10px}.modal{position:fixed;inset:0;background:rgba(0,0,0,.55);display:none;align-items:center;justify-content:center;padding:22px;z-index:80}.modal.open{display:flex}.modal-card{background:#fff;border-radius:18px;width:min(720px,100%);max-height:90vh;overflow:auto;padding:22px}.quiz-q{border:1px solid #e5e6ea;border-radius:13px;padding:14px;margin:12px 0}.notification-dot{background:#ed111c;color:#fff;border-radius:99px;padding:3px 7px;font-size:10px}.mobile-menu{display:none}.toast{position:fixed;right:20px;bottom:20px;background:#111;color:#fff;padding:13px 16px;border-radius:11px;z-index:100;display:none;max-width:360px}.toast.show{display:block}.toast.error{background:#ba111a}.certificate{border:8px double #111;padding:44px;text-align:center;background:#fff;max-width:900px;margin:auto}.certificate h1{font-size:42px}.certificate .name{font-size:34px;color:#ed111c;font-weight:900}.footer{background:#111216;color:#bbb;padding:45px 0;margin-top:50px}.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:30px}@media(max-width:900px){.hero-grid,.auth-page{grid-template-columns:1fr}.auth-side{display:none}.hero h1{font-size:52px}.grid3,.metrics{grid-template-columns:1fr 1fr}.dashboard{grid-template-columns:1fr}.sidebar{position:fixed;left:-280px;width:260px;z-index:70;transition:.2s}.sidebar.open{left:0}.mobile-menu{display:inline-flex}.dash-content{padding:18px}.message-layout{grid-template-columns:1fr}.contacts{border-right:0;border-bottom:1px solid #ddd}.navlinks{display:none}}@media(max-width:560px){.hero h1{font-size:42px}.feature-strip,.grid3,.metrics,.form-grid{grid-template-columns:1fr}.hero-actions{flex-direction:column}.dash-top{padding:0 14px}.section h2{font-size:30px}}
.invite-code{font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-size:1.05rem;font-weight:800;letter-spacing:.12em;margin-bottom:8px}.join-code-panel{display:flex;align-items:center;justify-content:space-between;gap:24px;border:1px solid #e5e7eb;background:#fff}.join-code-form{display:flex;gap:10px;min-width:min(100%,420px)}.join-code-form input{flex:1;padding:13px 14px;border:1px solid #d1d5db;border-radius:10px;font-weight:700;letter-spacing:.08em}@media(max-width:760px){.join-code-panel,.join-code-form{display:block}.join-code-form input,.join-code-form button{width:100%;margin-top:10px}}
/* Production polish */
:root{--red:#ed111c;--ink:#15161a;--surface:#fff;--line:#e7e8ec;--muted:#6c6f77}
body{min-height:100vh}.network-banner{display:none;position:sticky;top:0;z-index:100;background:#8b1018;color:#fff;text-align:center;padding:9px 16px;font-weight:800;font-size:13px}.network-banner.show{display:block}.course-search{position:relative;max-width:620px;margin:0 0 26px}.course-search input{width:100%;padding:15px 46px 15px 16px;border:1px solid #dfe1e6;border-radius:14px;background:#fff;font-size:16px;outline:none}.course-search input:focus{border-color:var(--red);box-shadow:0 0 0 4px rgba(237,17,28,.08)}.course-search span{position:absolute;right:16px;top:10px;font-size:25px;color:#777}.course-card-pro{padding:0;overflow:hidden;transition:.2s transform,.2s box-shadow}.course-card-pro:hover{transform:translateY(-3px);box-shadow:0 14px 36px rgba(20,24,33,.09)}.course-cover{height:110px;background:linear-gradient(135deg,#141519,#2b2c31);display:flex;align-items:center;justify-content:center}.course-cover span{width:54px;height:54px;border-radius:16px;background:var(--red);color:#fff;display:grid;place-items:center;font-size:26px;font-weight:900}.course-card-body{padding:20px}.course-meta{display:flex;justify-content:space-between;gap:12px;align-items:end;border-top:1px solid #eee;padding-top:14px;margin-top:14px;font-size:12px}.course-meta strong{font-size:14px}.quick-actions{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin:0 0 22px}.quick-actions button{background:#fff;border:1px solid var(--line);border-radius:16px;padding:16px;text-align:left;cursor:pointer;transition:.18s}.quick-actions button:hover{border-color:#f4a4aa;box-shadow:0 8px 24px rgba(20,24,33,.06);transform:translateY(-1px)}.quick-actions span{display:grid;width:34px;height:34px;place-items:center;background:#fff0f1;color:#c70e18;border-radius:10px;font-weight:900;margin-bottom:10px}.quick-actions b,.quick-actions small{display:block}.quick-actions small{color:var(--muted);margin-top:2px}.btn:disabled{opacity:.6;cursor:not-allowed}.empty{border:1px dashed #d8dae0;border-radius:14px;padding:24px;color:#757880;background:#fbfbfc}.lesson{transition:.15s}.lesson:hover{background:#fcfcfd}.dashboard-main{background:#f7f8fa}.dash-content{max-width:1500px}.panel{box-shadow:0 5px 22px rgba(20,24,33,.025)}@media(max-width:980px){.quick-actions{grid-template-columns:repeat(2,1fr)}.course-meta{display:block}.course-meta strong{display:block;margin-top:6px}}@media(max-width:620px){.quick-actions{grid-template-columns:1fr 1fr}.hero-actions{flex-direction:column}.hero-actions .btn{width:100%}.quick-actions button{padding:13px}.dash-content{padding:18px}}
.course-actions{display:flex;gap:6px;flex-wrap:wrap;min-width:220px}.sync-error{display:block;max-width:260px;color:#a33;line-height:1.25;margin-top:6px}.table td{vertical-align:top}
/* Modern visual course builder */
.eyebrow{font-size:11px;font-weight:900;letter-spacing:.12em;color:#8a8d94}.builder-shell{max-width:1180px}.builder-toolbar{display:flex;justify-content:space-between;align-items:center;gap:20px;background:#fff;border:1px solid var(--line);border-radius:18px;padding:22px;margin-bottom:16px;position:sticky;top:88px;z-index:8;box-shadow:0 8px 30px rgba(20,24,33,.05)}.builder-toolbar h2{margin:3px 0;font-size:24px}.builder-toolbar-actions{display:flex;gap:8px}.composer-card{background:#fff;border:1px solid #f2b8bc;border-radius:16px;padding:18px;margin:14px 0}.builder-sections{display:flex;flex-direction:column;gap:14px}.builder-section{background:#fff;border:1px solid var(--line);border-radius:17px;overflow:hidden;box-shadow:0 5px 20px rgba(20,24,33,.025)}.builder-section.dragging,.builder-item.dragging{opacity:.45}.builder-section-head{display:flex;align-items:center;gap:12px;padding:15px 17px;cursor:pointer;background:#fff}.drag-handle{cursor:grab;color:#a0a3aa;font-weight:900;letter-spacing:-3px;padding-right:5px}.section-number{width:34px;height:34px;display:grid;place-items:center;background:#111216;color:#fff;border-radius:10px;font-weight:900}.section-title{flex:1}.section-title strong,.section-title small{display:block}.section-title small{color:var(--muted);margin-top:2px}.activity-count{font-size:12px;color:var(--muted);background:#f5f6f7;padding:6px 9px;border-radius:20px}.icon-btn{border:0;background:#f5f6f7;color:#333;width:34px;height:34px;border-radius:9px;display:inline-grid;place-items:center;cursor:pointer;text-decoration:none}.icon-btn:hover{background:#eceef1}.icon-btn.danger{color:#b81019}.chevron{font-size:20px}.builder-section.collapsed .builder-section-body{display:none}.builder-section.collapsed .chevron{transform:rotate(-90deg)}.builder-section-body{border-top:1px solid #eff0f2;padding:12px 17px 17px;background:#fcfcfd}.builder-items{display:flex;flex-direction:column;gap:7px}.builder-item{display:flex;align-items:center;gap:11px;background:#fff;border:1px solid #e6e8eb;border-radius:12px;padding:11px 12px}.builder-item-main{flex:1}.builder-item-main strong,.builder-item-main small{display:block}.builder-item-main small{color:var(--muted);margin-top:2px}.activity-icon{width:35px;height:35px;border-radius:9px;display:grid;place-items:center;font-weight:900;background:#fff0f1;color:#c70e18}.activity-icon.video{background:#fff0f1}.activity-icon.text{background:#eef4ff;color:#285da8}.activity-icon.file{background:#eef9f1;color:#26713f}.activity-icon.link{background:#fff7df;color:#8a6500}.builder-drop-hint{padding:18px;text-align:center;color:#9699a0;border:1px dashed #d7d9dd;border-radius:12px}.add-activity{display:flex;align-items:center;gap:14px;padding:13px 2px 2px}.add-activity>span{font-size:12px;font-weight:800;color:#777}.activity-buttons{display:flex;gap:7px;flex-wrap:wrap}.activity-buttons button{border:1px solid #dfe1e5;background:#fff;padding:8px 11px;border-radius:9px;font-weight:800;cursor:pointer}.activity-buttons button:hover{border-color:#ed111c;color:#c70e18}.activity-composer{margin-top:12px;background:#fff;border:1px solid #e0e2e6;border-radius:14px;padding:16px}.composer-head{display:flex;justify-content:space-between;align-items:center;grid-column:1/-1;margin-bottom:8px}.builder-empty{text-align:center;padding:60px 25px;background:#fff;border:1px dashed #ccd0d5;border-radius:18px}.builder-empty strong{font-size:22px}.builder-empty p{color:var(--muted)}
/* Immersive student learning */
.learn-shell{background:#fff;border:1px solid var(--line);border-radius:18px;overflow:hidden;box-shadow:0 10px 35px rgba(20,24,33,.05)}.learn-coursebar{display:grid;grid-template-columns:minmax(180px,260px) 1fr auto;align-items:center;gap:18px;padding:15px 20px;border-bottom:1px solid var(--line)}.learn-coursebar strong,.learn-coursebar .eyebrow{display:block}.learn-progress{height:8px;background:#eceef1;border-radius:20px;overflow:hidden}.learn-progress span{display:block;height:100%;background:#ed111c;border-radius:20px}.learn-layout{display:grid;grid-template-columns:320px minmax(0,1fr);min-height:620px}.learn-outline{border-right:1px solid var(--line);background:#fafbfc;overflow:auto;max-height:calc(100vh - 210px)}.outline-head{padding:18px;display:flex;justify-content:space-between;border-bottom:1px solid var(--line)}.outline-head small{color:var(--muted)}.outline-section{border-bottom:1px solid #e8eaed}.outline-section-title{width:100%;border:0;background:#f5f6f7;padding:13px 15px;display:flex;align-items:center;gap:10px;text-align:left;cursor:pointer}.outline-section-title>span{width:25px;height:25px;border-radius:7px;background:#111;color:#fff;display:grid;place-items:center;font-size:11px}.outline-section-title div{flex:1}.outline-section-title strong,.outline-section-title small{display:block}.outline-section-title small{color:var(--muted);margin-top:2px}.outline-section.closed .outline-items{display:none}.outline-item{width:100%;border:0;background:transparent;display:flex;gap:10px;text-align:left;padding:12px 15px;cursor:pointer;border-left:3px solid transparent}.outline-item:hover{background:#fff}.outline-item.active{background:#fff;border-left-color:#ed111c}.outline-item.done .lesson-state{background:#eaf8ef;color:#1f7a43}.lesson-state{width:25px;height:25px;flex:0 0 25px;border-radius:50%;background:#eceef1;display:grid;place-items:center;font-size:11px;font-weight:900}.outline-item strong,.outline-item small{display:block}.outline-item small{color:var(--muted);margin-top:2px}.lesson-stage{min-width:0;background:#fff;display:flex;flex-direction:column}.lesson-breadcrumb{padding:17px 28px;border-bottom:1px solid #eff0f2;color:#777;font-size:13px}.lesson-breadcrumb span{margin:0 7px}.lesson-content{padding:32px 6%;flex:1;max-width:1000px;width:100%;margin:auto}.lesson-content h1{font-size:34px;letter-spacing:-1px;margin:10px 0 24px}.lesson-copy{font-size:17px;line-height:1.75;color:#35373c;margin-top:25px}.video-frame{background:#0b0c0e;border-radius:14px;overflow:hidden;box-shadow:0 12px 30px rgba(0,0,0,.12)}.video-frame video{width:100%;max-height:520px;display:block;background:#000}.resource-card{display:flex;gap:14px;align-items:center;padding:17px;border:1px solid #dfe2e6;border-radius:13px;text-decoration:none;color:#222;background:#fafbfc}.resource-card>span{width:42px;height:42px;border-radius:11px;background:#ed111c;color:#fff;display:grid;place-items:center;font-weight:900}.resource-card strong,.resource-card small{display:block}.resource-card small{color:var(--muted);margin-top:3px}.lesson-nav{display:flex;justify-content:space-between;gap:10px;padding:16px 24px;border-top:1px solid var(--line);background:#fafbfc;position:sticky;bottom:0}.lesson-nav button:disabled{visibility:hidden}@media(max-width:900px){.builder-toolbar{position:static;align-items:flex-start}.learn-layout{grid-template-columns:1fr}.learn-outline{max-height:330px;border-right:0;border-bottom:1px solid var(--line)}.learn-coursebar{grid-template-columns:1fr}.lesson-content{padding:25px 20px}.lesson-nav{padding:12px}.activity-count{display:none}}@media(max-width:600px){.builder-toolbar,.builder-section-head,.add-activity{align-items:flex-start}.builder-toolbar{display:block}.builder-toolbar-actions{margin-top:12px}.builder-section-head{flex-wrap:wrap}.section-title{min-width:180px}.builder-item{flex-wrap:wrap}.builder-item-main{min-width:160px}.lesson-content h1{font-size:28px}.lesson-nav .btn{padding:9px 10px;font-size:12px}}
/* SADAC EDU Platform V2 */
.dashboard-focus{margin:0 0 22px}.focus-grid{display:grid;grid-template-columns:1.15fr 1fr 1fr;gap:14px}.focus-primary,.focus-list{background:#fff;border:1px solid var(--line);border-radius:18px;padding:20px;box-shadow:0 6px 24px rgba(20,24,33,.035)}.focus-primary{background:linear-gradient(135deg,#15161a,#292b31);color:#fff}.focus-primary .eyebrow{color:#ff9ca2}.focus-primary h2{font-size:25px;margin:8px 0}.focus-primary p{color:#d5d7db}.focus-list h3{margin-top:0}.focus-row{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:11px 0;border-bottom:1px solid #eef0f2}.focus-row:last-child{border:0}.focus-row strong,.focus-row small{display:block}.focus-row small{color:var(--muted);margin-top:2px}.focus-row>span{font-size:12px;color:#686b72;text-align:right}.gradebook th{min-width:120px}.gradebook th:first-child{min-width:190px;position:sticky;left:0;background:#fff;z-index:2}.gradebook td:first-child{position:sticky;left:0;background:#fff}.gradebook th small,.gradebook td small{display:block;color:var(--muted);margin-top:4px}.discussion-list{margin-top:18px}.discussion-post{display:grid;grid-template-columns:42px 1fr;gap:12px;padding:18px 0;border-bottom:1px solid #eceef1}.discussion-avatar{width:42px;height:42px;border-radius:50%;background:#111;color:#fff;display:grid;place-items:center;font-weight:900}.discussion-body>div:first-child small{color:var(--muted);margin-left:8px}.discussion-body p{font-size:15px;line-height:1.6}.pinned{background:#fff1cf;color:#735500;padding:3px 7px;border-radius:999px;font-size:11px;font-weight:800;margin-left:6px}.replies{margin:10px 0 12px;border-left:2px solid #eceef1;padding-left:14px}.reply{background:#f8f9fa;border-radius:10px;padding:10px 12px;margin:7px 0}.reply strong,.reply span,.reply small{display:block}.reply small{color:var(--muted);margin-top:3px}.replyForm,.teacherReplyForm{display:flex;gap:8px}.replyForm input,.teacherReplyForm input{flex:1;border:1px solid #dfe1e5;border-radius:10px;padding:9px 11px}.lesson-notes{margin-top:28px;background:#fbfbfc;border:1px solid #e5e7ea;border-radius:14px;padding:16px}.lesson-notes textarea{width:100%;border:1px solid #dfe1e5;border-radius:10px;padding:12px;resize:vertical}.stars{color:#f2a400;letter-spacing:1px}.course-rating{display:flex;gap:7px;align-items:center;margin-bottom:8px}.course-rating small{color:var(--muted)}.teacher-line{display:flex;align-items:center;gap:8px;font-size:13px}.verified{background:#eaf8ef;color:#17633a;padding:4px 7px;border-radius:999px;font-size:11px;font-weight:800}.course-search{margin-bottom:16px}.table small{display:block;color:var(--muted);margin-top:3px}
@media(max-width:1050px){.focus-grid{grid-template-columns:1fr 1fr}.focus-primary{grid-column:1/-1}}@media(max-width:700px){.focus-grid{grid-template-columns:1fr}.focus-primary{grid-column:auto}.discussion-post{grid-template-columns:34px 1fr}.discussion-avatar{width:34px;height:34px}.replyForm,.teacherReplyForm{flex-direction:column}}
/* Notification centre */
.notification-dot{display:inline-flex;align-items:center;justify-content:center;min-width:24px;height:24px;padding:0 7px;border-radius:999px;background:#ececec;font-size:12px;font-weight:800}.notification-dot.has-unread{background:#e31b23;color:#fff;box-shadow:0 0 0 4px rgba(227,27,35,.10)}
.notification-panel{position:fixed;right:22px;top:68px;width:min(390px,calc(100vw - 28px));max-height:70vh;overflow:auto;background:#fff;border:1px solid #e7e7e7;border-radius:16px;box-shadow:0 22px 60px rgba(0,0,0,.18);z-index:9998}.notification-head{position:sticky;top:0;background:#fff;display:flex;align-items:center;justify-content:space-between;padding:14px 16px;border-bottom:1px solid #eee;z-index:1}.notification-list{padding:6px}.notification-item{width:100%;border:0;background:#fff;text-align:left;display:grid;grid-template-columns:34px 1fr;gap:10px;padding:12px;border-radius:12px;cursor:pointer}.notification-item:hover{background:#fafafa}.notification-item.unread{background:#fff3f3}.notification-icon{width:32px;height:32px;border-radius:50%;background:#f3f3f3;display:grid;place-items:center}.notification-item strong,.notification-item small,.notification-item em,.notification-item time{display:block}.notification-item small{margin-top:3px;color:#555}.notification-item em{font-style:normal;color:#b30f16;font-size:12px;margin-top:4px}.notification-item time{font-size:11px;color:#999;margin-top:5px}
.contact-unread{display:inline-flex;align-items:center;justify-content:center;min-width:20px;height:20px;border-radius:999px;background:#e31b23;color:white;font-size:11px;font-weight:800;padding:0 6px;float:right}.contact.has-unread{background:#fff3f3}
.nav-unread{margin-left:auto;display:inline-flex;align-items:center;justify-content:center;min-width:20px;height:20px;padding:0 6px;border-radius:999px;background:#e31b23;color:#fff;font-size:11px;font-weight:800}.side-nav button{display:flex;align-items:center;gap:8px}
/* Local-server QA */
.qa-grid{display:grid;gap:8px;margin-top:14px}.qa-row{display:flex;gap:12px;align-items:flex-start;padding:12px 14px;border:1px solid var(--line,#e5e7eb);border-radius:12px;background:#fff}.qa-row>span{font-weight:900;font-size:18px}.qa-row.pass>span{color:#15803d}.qa-row.fail>span{color:#dc2626}.qa-row small{display:block;color:#667085;margin-top:3px}.qa-summary{padding:12px 14px;border-radius:12px;background:#f5f7fa}.qa-warnings{margin-top:14px;padding:14px;border-radius:12px;background:#fff8e6;border:1px solid #f4d58d}.qa-warnings p{margin:6px 0 0}