:root{font-family:Inter,ui-sans-serif,system-ui,sans-serif;color:#172033;background:#f5f7fa;font-synthesis:none}*{box-sizing:border-box}body{margin:0}.page-center,.auth-page{min-height:100vh;display:grid;place-items:center;color:#526070}.auth-page{background:linear-gradient(135deg,#ecfeff,#f8fafc)}.login-card{width:min(420px,calc(100vw - 32px));padding:38px;background:#fff;border:1px solid #e4e9ef;border-radius:18px;box-shadow:0 18px 45px #12223d14}.login-card h1{margin:16px 0 6px;font-size:27px}.login-card p{margin:0 0 26px;color:#697687}.login-logo,.brand-mark{display:grid;place-items:center;background:#0e7490;color:#fff;font-weight:800;border-radius:10px}.login-logo{width:40px;height:40px}.login-card label{display:grid;gap:7px;margin:16px 0;font-size:14px;font-weight:650}.login-card input{border:1px solid #cdd6df;border-radius:8px;padding:11px 12px;font:inherit}.primary,.secondary,.account button{border:0;cursor:pointer;font:inherit}.primary{width:100%;display:flex;justify-content:center;align-items:center;gap:8px;padding:12px;border-radius:8px;background:#0e7490;color:#fff;font-weight:700}.primary:disabled{opacity:.65}.secondary{width:100%;margin-top:10px;padding:10px;border:1px solid #cdd6df;border-radius:8px;background:#fff}.separator{text-align:center;color:#8a96a3;margin:20px 0 4px;font-size:13px}.form-error{padding:10px 12px;border-radius:8px;background:#fff1f2;color:#be123c;font-size:14px}.app-shell{min-height:100vh;display:grid;grid-template-columns:244px 1fr}.sidebar{display:flex;flex-direction:column;padding:20px 12px;background:#102a43;color:#dbeafe}.brand{display:flex;align-items:center;gap:10px;padding:0 10px 25px;color:#fff;text-decoration:none;font-weight:760}.brand-mark{width:28px;height:28px;border-radius:7px;background:#22b8cf}.sidebar nav{display:grid;gap:4px}.nav-link{display:flex;gap:11px;align-items:center;padding:11px 12px;color:#c4d5e9;text-decoration:none;border-radius:8px;font-size:14px}.nav-link:hover,.nav-link.active{background:#1d4668;color:#fff}.account{margin-top:auto;padding:16px 10px 4px;display:grid;gap:4px;font-size:13px}.account span{color:#9eb9d4}.account button{display:flex;align-items:center;gap:7px;width:max-content;margin-top:9px;padding:0;background:transparent;color:#dbeafe}.content{padding:36px}.placeholder{max-width:760px;padding:42px;background:#fff;border:1px solid #e5ebf0;border-radius:14px}.placeholder svg{color:#0e7490}.placeholder h1{margin:16px 0 8px}.placeholder p{color:#64748b;margin:0}@media(max-width:700px){.app-shell{grid-template-columns:1fr}.sidebar{min-height:auto}.sidebar nav{display:flex;overflow:auto}.nav-link{white-space:nowrap}.account{display:none}.content{padding:20px}}.page-heading h1,.player-heading h1,.quiz h1{margin:4px 0 7px;font-size:30px}.page-heading p,.player-heading p,.quiz>p{margin:0;color:#64748b}.eyebrow{color:#0e7490!important;font-size:12px;font-weight:750;letter-spacing:.08em;text-transform:uppercase}.filters{display:flex;gap:8px;margin:28px 0 20px}.filters button{border:1px solid #d8e0e8;background:#fff;color:#526070;padding:8px 12px;border-radius:99px;cursor:pointer}.filters .selected{background:#0e7490;border-color:#0e7490;color:#fff}.course-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:16px}.course-card,.settings-card,.lesson,.module-list,.quiz,.quiz-result{background:#fff;border:1px solid #e1e8ed;border-radius:12px}.course-card{padding:20px;display:flex;flex-direction:column;gap:14px}.card-top{display:flex;justify-content:space-between;color:#64748b}.status{width:max-content;padding:4px 9px;border-radius:99px;font-size:12px;font-weight:700}.status.not_started{background:#eef2f6;color:#536170}.status.in_progress{background:#dff4ff;color:#08627a}.status.completed{background:#e2f8ed;color:#13764a}.course-card h2{font-size:18px;margin:0}.progress-track{height:8px;border-radius:99px;background:#e8eef2;overflow:hidden}.progress-track span{display:block;height:100%;background:#0e7490}.progress-label,.deadline{margin:0;color:#64748b;font-size:13px}.deadline{display:flex;align-items:center;gap:6px}.deadline.overdue{color:#c0263d}.card-action,.secondary-link{display:flex;justify-content:center;align-items:center;gap:6px;margin-top:auto;padding:10px;color:#0e7490;border:1px solid #a9d5df;border-radius:8px;text-decoration:none;font-size:14px;font-weight:700}.card-action.disabled{color:#8b98a6;border-color:#dce3e8;cursor:not-allowed}.empty{display:grid;place-items:center;text-align:center;gap:8px;min-height:230px;padding:28px;background:#fff;border:1px dashed #ccd8df;border-radius:12px;color:#64748b}.empty h1,.empty h2,.empty p{margin:0}.state{padding:28px;color:#64748b}.error,.inline-error{color:#be123c}.back-link{display:flex;align-items:center;gap:3px;width:max-content;margin-bottom:18px;color:#0e7490;text-decoration:none;font-size:14px;font-weight:650}.player-heading{margin-bottom:26px}.player-layout{display:grid;grid-template-columns:290px minmax(0,1fr);gap:18px}.module-list{padding:10px;height:max-content}.module-list strong{display:block;padding:10px;font-size:14px}.module-list button,.quiz-link{width:100%;display:flex;align-items:center;gap:9px;text-align:left;border:0;background:transparent;padding:10px;border-radius:7px;color:#435264;cursor:pointer;font:inherit;font-size:14px}.module-list button.current{background:#e8f7fa;color:#075d70;font-weight:700}.module-number,.module-done{display:grid;place-items:center;flex:0 0 23px;width:23px;height:23px;border-radius:50%;font-size:12px}.module-number{background:#edf1f4}.module-done{color:#138754}.quiz-link{margin-top:6px;text-decoration:none;border-top:1px solid #e6edf0;border-radius:0;padding-top:16px}.quiz-link.muted{color:#9aa5b1;cursor:not-allowed}.lesson{padding:28px;min-height:480px}.lesson h2{margin:12px 0 24px}.lesson-meta{display:flex;justify-content:space-between;color:#64748b;font-size:13px}.completed-label{display:flex;align-items:center;gap:5px;color:#138754}.text-content{line-height:1.75;color:#334155;overflow-wrap:anywhere}.media-frame{width:100%;min-height:390px;border:0;border-radius:8px;background:#0f172a}.external-link{color:#0e7490}.lesson-complete{width:auto;margin-top:26px;padding:11px 16px}.quiz{max-width:760px;padding:30px}.quiz fieldset{margin:26px 0;padding:0;border:0}.quiz legend{font-weight:700;margin-bottom:12px}.option{display:flex;gap:10px;align-items:center;padding:11px 12px;margin:7px 0;border:1px solid #e0e7ec;border-radius:8px;cursor:pointer}.option:has(input:checked){border-color:#0e7490;background:#f0fdff}.quiz .primary{width:auto;padding:11px 18px}.quiz-result{max-width:600px;padding:42px;text-align:center}.quiz-result>svg{color:#138754}.quiz-result.failed>svg{color:#c0263d}.quiz-result h1{margin:14px 0 8px}.quiz-result p{color:#526070;line-height:1.6}.quiz-result>div{display:flex;justify-content:center;gap:10px;margin-top:24px}.quiz-result .primary{width:auto;padding:11px 16px}.settings-card{max-width:520px;padding:26px;margin-top:25px}.settings-card h2{margin-top:0;font-size:19px}.settings-card label{display:grid;gap:7px;margin:17px 0;font-size:14px;font-weight:650}.settings-card input{padding:11px;border:1px solid #cdd6df;border-radius:8px;font:inherit}.settings-card .primary{width:auto;padding:11px 16px}.success-message{color:#138754;font-size:14px}@media(max-width:850px){.player-layout{grid-template-columns:1fr}.module-list{display:flex;overflow:auto;gap:5px}.module-list strong{display:none}.module-list button,.quiz-link{width:max-content;min-width:max-content;border:0;margin:0;padding:9px}.media-frame{min-height:270px}}@media(max-width:500px){.course-grid{grid-template-columns:1fr}.lesson,.quiz,.quiz-result{padding:20px}.quiz-result>div{flex-direction:column}.page-heading h1,.player-heading h1,.quiz h1{font-size:25px}}.admin-heading{display:flex;justify-content:space-between;align-items:end}.compact{width:auto!important;padding:10px 14px!important}.admin-form,.data-card,.editor-section{margin-top:22px;padding:22px;background:#fff;border:1px solid #e1e8ed;border-radius:12px}.admin-form h2,.editor-section h2{margin:0 0 17px;font-size:19px}.admin-form label,.quiz-editor label{display:grid;gap:7px;margin:13px 0;font-size:14px;font-weight:650}.admin-form input,.admin-form select,.admin-form textarea,.toolbar input,.member-add select,.quiz-editor input{width:100%;padding:10px;border:1px solid #cdd6df;border-radius:8px;background:#fff;font:inherit}.admin-form textarea{min-height:90px;resize:vertical}.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 16px}.admin-form .check{display:flex;align-items:center;gap:8px}.admin-form .check input{width:auto}.form-actions{display:flex;align-items:center;gap:10px;margin-top:16px}.secondary.compact{margin:0}.toolbar{margin-top:22px}.toolbar input{max-width:360px}.data-card{overflow:auto;padding:0}table{width:100%;border-collapse:collapse;font-size:14px}th,td{padding:14px 16px;text-align:left;border-bottom:1px solid #e8edf1}th{font-size:12px;text-transform:uppercase;color:#637386;letter-spacing:.04em}tr:last-child td{border:0}.role-tag,.publish{padding:4px 8px;border-radius:99px;background:#edf2f6;color:#526070;font-size:12px;font-weight:700}.publish.live{background:#e2f8ed;color:#13764a}.text-button,.danger-link,.module-controls button,.quiz-editor button{border:0;background:transparent;cursor:pointer;color:#0e7490;font:inherit}.danger,.danger-link{color:#c0263d!important}.empty-row{padding:20px;text-align:center;color:#64748b}.split-admin{display:grid;grid-template-columns:minmax(260px,.8fr) minmax(360px,1.2fr);gap:18px;margin-top:22px}.split-admin .admin-form{margin:0}.group-list{display:grid;gap:7px;margin-top:15px}.group-list button{display:flex;justify-content:space-between;text-align:left;border:1px solid #e1e8ed;border-radius:9px;padding:12px;background:#fff;cursor:pointer;color:#334155}.group-list button.selected{border-color:#0e7490;background:#f0fdff}.group-list span{font-size:12px;color:#64748b}.group-detail{margin:0}.member-add{display:grid;grid-template-columns:1fr auto;gap:10px}.member-add select{min-height:115px}.member-list{list-style:none;padding:0;margin:18px 0 0}.member-list li{display:flex;justify-content:space-between;align-items:center;padding:11px 0;border-top:1px solid #e8edf1}.member-list span{display:grid;gap:3px}.member-list small{color:#64748b}.course-admin-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:15px;margin-top:22px}.admin-course-card{display:flex;flex-direction:column;justify-content:space-between;gap:25px;min-height:185px;padding:20px;border:1px solid #e1e8ed;border-radius:12px;background:#fff;text-decoration:none;color:inherit}.admin-course-card:hover{border-color:#74cbd9}.admin-course-card h2{font-size:18px;margin:12px 0 8px}.admin-course-card p,.admin-course-card small{margin:0;color:#64748b;font-size:14px}.create-course{max-width:720px}.editor{max-width:980px}.editor-section{padding:0;background:transparent;border:0}.editor-section>h2{margin-bottom:12px}.editor-modules{display:grid;gap:8px}.editor-modules article{display:flex;align-items:center;justify-content:space-between;gap:15px;padding:13px 15px;background:#fff;border:1px solid #e1e8ed;border-radius:9px}.editor-modules article>div:first-child{display:grid;gap:3px}.editor-modules small{color:#64748b;text-transform:uppercase;font-size:11px}.module-controls{display:flex;gap:7px}.module-controls button{padding:4px 5px}.module-controls button:disabled{opacity:.4}.module-form{margin-top:12px}.section-title{display:flex;align-items:center;justify-content:space-between}.quiz-editor{padding:20px;background:#fff;border:1px solid #e1e8ed;border-radius:10px}.quiz-editor fieldset{margin:18px 0;padding:15px;border:1px solid #dfe7ec;border-radius:9px}.quiz-editor legend{font-weight:700}.quiz-option-edit{display:grid;grid-template-columns:auto 1fr auto;gap:8px;align-items:center;margin-top:9px}.quiz-option-edit input[type=radio]{width:auto}.quiz-editor>button{margin:12px 10px 0 0}.delete-course{margin:26px 0 10px}@media(max-width:700px){.admin-heading{align-items:start;gap:12px;flex-direction:column}.form-grid,.split-admin,.member-add{grid-template-columns:1fr}.editor-modules article{align-items:start;flex-direction:column}.content{padding:20px}.summary-cards{grid-template-columns:repeat(2,1fr)}.filter-bar{flex-direction:column}.filter-bar select,.filter-bar input{width:100%}}.summary-cards{display:grid;grid-template-columns:repeat(4,minmax(130px,1fr));gap:14px;margin-top:22px}.summary-card{padding:18px;background:#fff;border:1px solid #e1e8ed;border-radius:12px}.summary-card strong{display:block;font-size:26px}.summary-card span{color:#64748b;font-size:13px}.summary-card.overdue strong{color:#c0263d}.filter-bar{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin:18px 0}.filter-bar select,.filter-bar input{padding:9px 10px;border:1px solid #cdd6df;border-radius:8px;font:inherit;background:#fff}.filter-bar input{max-width:220px}.filter-bar .secondary.compact{margin-left:auto}.tag.overdue{margin-left:8px;padding:3px 8px;border-radius:99px;background:#fef2f2;color:#c0263d;font-size:11px;font-weight:700}.target-toggle{display:flex;gap:8px;margin:14px 0}.target-toggle button{flex:1;padding:10px;border:1px solid #cdd6df;border-radius:8px;background:#fff;cursor:pointer;color:#526070;font:inherit}.target-toggle button.selected{border-color:#0e7490;background:#f0fdff;color:#0e7490;font-weight:700}.admin-form select[multiple]{min-height:120px}.discussion{margin-top:28px;padding-top:24px;border-top:1px solid #e6edf0}.discussion h3{display:flex;align-items:center;gap:8px;margin:0 0 14px;font-size:17px}.comment-list{list-style:none;padding:0;margin:0;display:grid;gap:12px}.comment-thread{list-style:none;padding:0;margin:0;display:grid;gap:8px}.comment{padding:12px 14px;background:#f8fafc;border:1px solid #e8edf1;border-radius:10px}.comment.reply{margin-left:28px;background:#fff}.comment-head{display:flex;align-items:center;gap:8px;font-size:13px;color:#64748b}.comment-head strong{color:#172033}.comment p{margin:6px 0}.comment-actions{display:flex;gap:14px;font-size:12px}.comment-actions button{display:flex;align-items:center;gap:4px;border:0;background:transparent;color:#0e7490;cursor:pointer;font:inherit;padding:0}.comment-actions button.danger{color:#c0263d}.comment-form{margin-top:16px}.comment-form textarea{width:100%;min-height:80px;padding:10px;border:1px solid #cdd6df;border-radius:8px;font:inherit;resize:vertical}.replying-to{display:flex;align-items:center;gap:10px;margin-bottom:8px;font-size:13px;color:#0e7490}.replying-to button{border:0;background:transparent;color:#64748b;cursor:pointer;font:inherit;text-decoration:underline}.comment-form .primary.compact{margin-top:10px}.rate-bar{display:flex;align-items:center;gap:8px;min-width:120px}.rate-bar .progress-track{flex:1}.rate-bar small{color:#64748b;width:34px}.toast-stack{position:fixed;bottom:22px;right:22px;display:grid;gap:10px;z-index:999}.toast{display:flex;align-items:center;gap:10px;padding:13px 16px;border-radius:10px;background:#172033;color:#fff;font-size:14px;box-shadow:0 10px 30px #12223d33;max-width:360px}.toast.success{background:#0f5132}.toast.error{background:#842029}.toast.info{background:#172033}@media(max-width:500px){.toast-stack{left:16px;right:16px;bottom:16px}.toast{max-width:none}}.confirm-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;background:#12223d66;display:grid;place-items:center;padding:16px;z-index:1000}.confirm-dialog{background:#fff;border-radius:14px;padding:22px;width:100%;max-width:420px;box-shadow:0 20px 50px #12223d40}.confirm-dialog h2{margin:0 0 8px;font-size:18px}.confirm-dialog p{margin:0 0 20px;color:#475069;line-height:1.5}.confirm-actions{display:flex;justify-content:flex-end;gap:10px}button.danger-solid{background:#b42318;color:#fff;border:0;border-radius:8px;padding:9px 16px;font-weight:600;cursor:pointer}button.danger-solid:hover{background:#912018}.deadline-rel{display:block;font-size:12px;color:#64748b}.deadline-rel.overdue{color:#c0263d}.text-content>:first-child{margin-top:0}.text-content>:last-child{margin-bottom:0}.text-content h1,.text-content h2,.text-content h3{line-height:1.3;margin:1.4em 0 .5em;color:#172033}.text-content h1{font-size:24px}.text-content h2{font-size:20px}.text-content h3{font-size:17px}.text-content p{margin:0 0 1em}.text-content ul,.text-content ol{margin:0 0 1em;padding-left:1.4em}.text-content a{color:#2457d6;text-decoration:underline}.text-content code{background:#eef1f6;border-radius:4px;padding:1px 5px;font-size:.92em}.text-content pre{background:#172033;color:#e8edf7;border-radius:10px;padding:14px;overflow:auto}.text-content pre code{background:none;padding:0;color:inherit}.text-content blockquote{margin:0 0 1em;padding:2px 14px;border-left:3px solid #cbd5e1;color:#64748b}.text-content table{border-collapse:collapse;margin-bottom:1em}.text-content th,.text-content td{border:1px solid #dbe1ea;padding:6px 10px}.text-content img{max-width:100%}