:root{--tu-blue:#0052ff;--tu-navy:#161c30;--tu-text:#161c2d;--tu-muted:#7d8698;--tu-line:#e9edf4;--tu-soft:#f7f9fc;--tu-pale:#eef4ff;--tu-green:#20a36a;--tu-shadow:0 18px 50px rgba(22,28,48,.08)}
*{box-sizing:border-box}.tu-standalone-page{margin:0;background:#fff;color:var(--tu-text);font-family:Inter,ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif}.tu-standalone-page a{text-decoration:none}.tu-app{min-height:100vh;display:flex;background:#fff}.tu-sidebar{width:260px;position:fixed;inset:0 auto 0 0;border-right:1px solid var(--tu-line);background:#fff;display:flex;flex-direction:column;z-index:50}.tu-brand{height:76px;padding:16px 20px;display:flex;align-items:center;gap:12px;border-bottom:1px solid var(--tu-line)}.tu-logo-mark{width:40px;height:40px;border-radius:12px;background:var(--tu-blue);display:grid;place-items:center;color:#fff;font-weight:900;font-size:23px;box-shadow:0 9px 20px rgba(0,82,255,.2)}.tu-brand div:last-child,.tu-login-brand div:last-child{display:flex;flex-direction:column;gap:2px}.tu-brand strong,.tu-login-brand strong{font-size:14px;letter-spacing:.02em}.tu-brand small,.tu-login-brand small{font-size:9px;color:var(--tu-muted);font-weight:800;letter-spacing:.15em}.tu-nav{padding:18px 12px;display:flex;flex-direction:column;gap:4px;overflow:auto}.tu-nav-label{font-size:9px;color:#9aa2b1;font-weight:900;letter-spacing:.16em;padding:18px 12px 8px}.tu-nav a,.tu-nav-disabled{min-height:42px;padding:10px 12px;border-radius:9px;display:flex;align-items:center;gap:11px;color:#717b8d;font-weight:650;font-size:14px}.tu-nav a i,.tu-nav-disabled i{width:18px;font-style:normal;text-align:center}.tu-nav a.is-active{background:var(--tu-pale);color:var(--tu-blue)}.tu-nav a:hover{background:#f5f7fb;color:var(--tu-text)}.tu-nav-disabled{opacity:.55}.tu-nav-disabled b{margin-left:auto;font-size:8px;letter-spacing:.08em;background:#edf0f5;padding:3px 5px;border-radius:4px}.tu-sidebar-user{margin-top:auto;border-top:1px solid var(--tu-line);padding:14px 16px;display:flex;align-items:center;gap:10px}.tu-user-avatar{width:38px;height:38px;border-radius:50%;background:var(--tu-blue);color:#fff;display:grid;place-items:center;font-weight:850;font-size:12px;flex:0 0 auto}.tu-sidebar-user>div{min-width:0;display:flex;flex-direction:column;gap:2px}.tu-sidebar-user strong{font-size:12px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.tu-sidebar-user small{font-size:10px;color:var(--tu-muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.tu-sidebar-user>a{margin-left:auto;color:var(--tu-muted);font-weight:900}.tu-main{width:calc(100% - 260px);margin-left:260px;min-height:100vh}.tu-topbar{height:66px;border-bottom:1px solid var(--tu-line);display:flex;align-items:center;padding:0 30px;position:sticky;top:0;background:rgba(255,255,255,.94);backdrop-filter:blur(14px);z-index:30}.tu-search{height:38px;max-width:430px;flex:1;background:var(--tu-soft);border:1px solid #f1f3f7;border-radius:20px;display:flex;align-items:center;padding:0 13px;gap:8px;color:#9ca4b3}.tu-search input{border:0;background:transparent;outline:0;flex:1;font:inherit;color:var(--tu-text);font-size:13px}.tu-search kbd{font:700 9px/1 ui-monospace,monospace;background:#fff;border:1px solid var(--tu-line);padding:4px 6px;border-radius:5px}.tu-top-actions{margin-left:auto;display:flex;align-items:center;gap:14px}.tu-progress-chip{font-size:11px;color:var(--tu-muted);background:#f6f8fb;padding:8px 12px;border-radius:999px}.tu-progress-chip b{color:var(--tu-blue);margin-right:3px}.tu-menu-toggle{display:none;border:0;background:transparent;font-size:24px;margin-right:12px}.tu-content{padding:30px;max-width:1520px;margin:0 auto}.tu-welcome-grid{display:grid;grid-template-columns:minmax(0,1.65fr) minmax(320px,.8fr);gap:22px}.tu-welcome-card{min-height:250px;border-radius:22px;padding:34px;background:var(--tu-navy);color:#fff;position:relative;overflow:hidden;background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);background-size:40px 40px}.tu-welcome-card:after{content:"";position:absolute;width:260px;height:260px;border-radius:50%;right:-70px;bottom:-110px;background:radial-gradient(circle,rgba(0,82,255,.55),rgba(0,82,255,0) 68%)}.tu-eyebrow{display:block;font-size:10px;font-weight:900;letter-spacing:.16em;color:#8690a2;margin-bottom:10px}.tu-welcome-card h1{font-size:34px;line-height:1.05;margin:0 0 14px;max-width:630px;letter-spacing:-.035em}.tu-welcome-card p{max-width:640px;color:#b5bdca;font-size:14px;line-height:1.7;margin:0 0 25px}.tu-primary-button,.tu-secondary-button{display:inline-flex;align-items:center;justify-content:center;gap:7px;min-height:42px;padding:0 17px;border-radius:10px;border:0;font-weight:800;font-size:13px;cursor:pointer}.tu-primary-button{background:var(--tu-blue);color:#fff!important;box-shadow:0 8px 22px rgba(0,82,255,.18)}.tu-primary-button:hover{filter:brightness(.96)}.tu-primary-button.is-disabled{background:#aeb6c4;box-shadow:none;cursor:not-allowed}.tu-secondary-button{background:#fff;color:var(--tu-text)!important;border:1px solid var(--tu-line)}.tu-overview-card{border:1px solid var(--tu-line);border-radius:22px;padding:26px;background:#fbfcfe}.tu-overview-card>div:first-child{display:flex;align-items:flex-start;justify-content:space-between;color:var(--tu-muted);font-size:12px}.tu-overview-card>div:first-child strong{color:var(--tu-text);font-size:34px;letter-spacing:-.04em}.tu-big-progress{height:10px;background:#e9eef7;border-radius:999px;overflow:hidden;margin:18px 0 22px}.tu-big-progress i,.tu-watch-bar i,.tu-row-progress i{display:block;height:100%;background:var(--tu-blue);border-radius:inherit}.tu-overview-stats{display:grid;grid-template-columns:1fr;gap:10px}.tu-overview-stats span{display:flex;justify-content:space-between;padding:10px 0;border-top:1px solid var(--tu-line);font-size:11px;color:var(--tu-muted)}.tu-overview-stats b{color:var(--tu-text)}.tu-section{margin-top:30px}.tu-section-head{display:flex;justify-content:space-between;gap:30px;align-items:flex-end;margin-bottom:16px}.tu-section-head h2{font-size:21px;margin:0 0 5px;letter-spacing:-.02em}.tu-section-head p{margin:0;color:var(--tu-muted);font-size:13px}.tu-course-score{text-align:right}.tu-course-score strong{display:block;font-size:24px}.tu-course-score span{font-size:10px;color:var(--tu-muted);text-transform:uppercase;font-weight:800;letter-spacing:.1em}.tu-training-list{border:1px solid var(--tu-line);border-radius:18px;overflow:hidden}.tu-training-row{min-height:92px;display:grid;grid-template-columns:52px minmax(0,1fr) 180px;gap:14px;align-items:center;padding:16px 19px;background:#fff;border-bottom:1px solid var(--tu-line);color:var(--tu-text)}.tu-training-row:last-child{border-bottom:0}.tu-training-row[href]:hover{background:#fbfcff}.tu-training-row.is-done{background:#fbfffd}.tu-training-row.is-locked{opacity:.58;background:#fafbfc}.tu-lesson-index{width:40px;height:40px;border-radius:11px;background:var(--tu-pale);color:var(--tu-blue);display:grid;place-items:center;font-weight:900;font-size:12px}.tu-training-row.is-done .tu-lesson-index{background:#eaf8f1;color:var(--tu-green)}.tu-lesson-copy{display:flex;flex-direction:column;gap:3px}.tu-lesson-copy small{font-size:9px;color:#9aa2b1;font-weight:900;letter-spacing:.1em}.tu-lesson-copy strong{font-size:14px}.tu-lesson-copy span{font-size:11px;color:var(--tu-muted)}.tu-row-progress{display:flex;align-items:center;gap:10px}.tu-row-progress>div{height:6px;background:#edf1f6;border-radius:999px;flex:1;overflow:hidden}.tu-row-progress strong{font-size:10px;color:var(--tu-muted);width:44px;text-align:right}.tu-admin-demo-box{margin-top:24px;border:1px dashed #b9c8e8;background:#f7faff;border-radius:14px;padding:14px 16px;display:flex;align-items:center;justify-content:space-between;gap:20px}.tu-admin-demo-box>div{display:flex;flex-direction:column;gap:3px}.tu-admin-demo-box strong{font-size:12px}.tu-admin-demo-box span{font-size:11px;color:var(--tu-muted)}.tu-admin-demo-box button{border:0;background:var(--tu-navy);color:#fff;border-radius:9px;padding:10px 13px;font-weight:800;cursor:pointer}.tu-breadcrumb{display:flex;align-items:center;gap:8px;font-size:11px;color:var(--tu-muted);margin-bottom:18px}.tu-breadcrumb a{color:var(--tu-blue)}.tu-player-layout{display:grid;grid-template-columns:minmax(0,1fr) 330px;gap:22px;align-items:start}.tu-player-main{min-width:0}.tu-lesson-heading{display:flex;justify-content:space-between;gap:22px;align-items:flex-start;margin-bottom:18px}.tu-lesson-heading h1{font-size:30px;line-height:1.08;margin:0 0 8px;letter-spacing:-.035em}.tu-lesson-heading p{font-size:13px;color:var(--tu-muted);margin:0;line-height:1.6}.tu-required-badge{white-space:nowrap;background:#fff5e7;color:#9b6500;border:1px solid #ffe4b4;padding:8px 10px;border-radius:999px;font-size:9px;font-weight:900;letter-spacing:.08em}.tu-video-frame{position:relative;background:#080a0f;border-radius:18px;overflow:hidden;box-shadow:var(--tu-shadow);aspect-ratio:16/9}.tu-video-frame video{width:100%;height:100%;display:block;background:#000}.tu-video-shield{position:absolute;left:50%;top:18px;transform:translate(-50%,-10px);opacity:0;pointer-events:none;background:rgba(22,28,48,.92);color:#fff;padding:9px 13px;border-radius:999px;font-size:11px;font-weight:800;transition:.22s}.tu-video-shield.is-visible{opacity:1;transform:translate(-50%,0)}.tu-no-video{height:100%;display:grid;place-items:center;color:#fff}.tu-watch-status{border:1px solid var(--tu-line);border-radius:15px;margin-top:14px;padding:15px 17px;background:#fff}.tu-watch-status.is-complete{border-color:#ccebdd;background:#f8fffb}.tu-watch-status-top{display:flex;justify-content:space-between;font-size:12px;font-weight:800}.tu-watch-status-top strong{color:var(--tu-blue)}.tu-watch-bar{height:7px;background:#edf1f6;border-radius:999px;overflow:hidden;margin:10px 0}.tu-watch-status p{margin:0;color:var(--tu-muted);font-size:11px}.tu-lesson-nav{display:flex;justify-content:space-between;gap:15px;margin-top:18px}.tu-course-outline{position:sticky;top:92px;border:1px solid var(--tu-line);border-radius:18px;padding:18px;background:#fff}.tu-course-outline h3{font-size:15px;margin:0 0 14px}.tu-outline-list{display:flex;flex-direction:column}.tu-outline-row{display:grid;grid-template-columns:32px 1fr;gap:9px;padding:11px 8px;border-top:1px solid var(--tu-line);align-items:center}.tu-outline-row>span{width:28px;height:28px;border-radius:8px;background:#f1f4f8;color:#778195;display:grid;place-items:center;font-size:10px;font-weight:900}.tu-outline-row>div{display:flex;flex-direction:column;gap:2px;min-width:0}.tu-outline-row small{font-size:8px;color:#a0a8b6;font-weight:900;letter-spacing:.08em}.tu-outline-row strong{font-size:11px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.tu-outline-row.is-current{background:var(--tu-pale);border-radius:10px}.tu-outline-row.is-current>span{background:var(--tu-blue);color:#fff}.tu-outline-row.is-done>span{background:#eaf8f1;color:var(--tu-green)}.tu-outline-row.is-locked{opacity:.52}.tu-login-page{min-height:100vh;background:radial-gradient(circle at 80% 10%,rgba(0,82,255,.18),transparent 30%),var(--tu-navy);display:flex;align-items:center;justify-content:center;padding:30px;position:relative}.tu-login-brand{position:absolute;left:28px;top:24px;display:flex;align-items:center;gap:11px;color:#fff}.tu-login-card{width:min(440px,100%);background:#fff;border-radius:24px;padding:34px;box-shadow:0 30px 90px rgba(0,0,0,.25)}.tu-login-card h1{font-size:34px;letter-spacing:-.04em;margin:0 0 8px}.tu-login-card>p{color:var(--tu-muted);margin:0 0 22px;font-size:13px}.tu-login-card form p{margin:0 0 13px}.tu-login-card label{display:block;font-size:11px;font-weight:800;color:#525c6c}.tu-login-card input[type=text],.tu-login-card input[type=password]{width:100%;height:44px;margin-top:6px;border:1px solid var(--tu-line);border-radius:10px;padding:0 12px;font-size:14px;outline:0}.tu-login-card input:focus{border-color:var(--tu-blue);box-shadow:0 0 0 3px rgba(0,82,255,.1)}.tu-login-card .login-remember label{display:flex;align-items:center;gap:7px;font-weight:600}.tu-login-card .login-submit input{width:100%;height:44px;border:0;border-radius:10px;background:var(--tu-blue);color:#fff;font-weight:850;cursor:pointer}.tu-forgot{display:block;text-align:center;color:var(--tu-blue);font-size:11px;font-weight:800}.tu-login-note{position:absolute;bottom:22px;color:#9aa5b7;font-size:10px;letter-spacing:.08em;text-transform:uppercase;font-weight:800}.tu-sidebar-scrim{display:none}
@media(max-width:1050px){.tu-welcome-grid{grid-template-columns:1fr}.tu-player-layout{grid-template-columns:1fr}.tu-course-outline{position:static}.tu-training-row{grid-template-columns:48px minmax(0,1fr) 140px}}
@media(max-width:760px){.tu-sidebar{transform:translateX(-100%);transition:.25s;width:270px}.tu-main{width:100%;margin-left:0}.tu-menu-open .tu-sidebar{transform:translateX(0)}.tu-sidebar-scrim{display:block;position:fixed;inset:0;background:rgba(12,18,31,.45);z-index:40;opacity:0;pointer-events:none;transition:.25s}.tu-menu-open .tu-sidebar-scrim{opacity:1;pointer-events:auto}.tu-menu-toggle{display:block}.tu-topbar{padding:0 14px}.tu-search{display:none}.tu-progress-chip{display:none}.tu-content{padding:18px}.tu-welcome-card{padding:26px;min-height:270px}.tu-welcome-card h1{font-size:30px}.tu-section-head{align-items:flex-start}.tu-course-score{display:none}.tu-training-row{grid-template-columns:44px minmax(0,1fr);padding:14px}.tu-row-progress{grid-column:2}.tu-lesson-copy span{display:none}.tu-lesson-heading{flex-direction:column}.tu-required-badge{align-self:flex-start}.tu-lesson-nav{flex-direction:column}.tu-lesson-nav>div:last-child{display:flex}.tu-lesson-nav .tu-primary-button,.tu-lesson-nav .tu-secondary-button{width:100%}.tu-admin-demo-box{align-items:flex-start;flex-direction:column}.tu-login-brand{position:static;margin-bottom:22px}.tu-login-page{flex-direction:column;justify-content:center}.tu-login-note{position:static;margin-top:18px}}
.tu-logo-image{width:46px;height:46px;display:flex;align-items:center;justify-content:center;flex:0 0 auto}.tu-logo-image img{display:block;max-width:100%;max-height:100%;width:auto;height:auto;object-fit:contain}.tu-brand .tu-logo-image{width:46px;height:42px}.tu-login-brand .tu-logo-image{width:52px;height:46px}.tu-login-brand .tu-logo-image img{filter:none}