.edunova-catalog{--navy:#0d1117;--navy-mid:#1a1a2e;--navy-card:#1e2235;--navy-card2:#242840;--navy-line:#2a2d45;--blue:#2e75b6;--blue-lt:#4a9fd4;--blue-glow:#2e75b647;--accent:#5b8fff;--green:#22c55e;--amber:#f59e0b;--red:#ef4444;--purple:#a78bfa;--teal:#2dd4bf;--text:#f1f5f9;--text-muted:#94a3b8;--text-dim:#64748b;--radius:14px;--radius-sm:8px;--shadow:0 4px 20px #0006;--sidebar-w:256px;background:var(--navy);color:var(--text);scroll-behavior:smooth;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Inter,sans-serif;line-height:1.6;overflow-x:hidden}@scope(.edunova-catalog){*,:before,:after{box-sizing:border-box;margin:0;padding:0}nav{z-index:200;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);background:#0d1117eb;border-bottom:1px solid #ffffff12;justify-content:space-between;align-items:center;height:64px;padding:0 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.course-name{white-space:nowrap;text-overflow:ellipsis;flex:1;font-size:14px;font-weight:600;overflow:hidden}.sticky-enroll-bar .enroll-btn-bar{background:var(--blue);color:#fff;border-radius:var(--radius-sm);white-space:nowrap;cursor:pointer;border:none;padding:10px 24px;font-family:inherit;font-size:14px;font-weight:600}.course-body{grid-template-columns:1fr 360px;gap:48px;max-width:1200px;margin:0 auto;padding:48px 5vw 80px;display:grid}.content-tabs{border-bottom:1px solid var(--navy-line);z-index:50;background:var(--navy);gap:0;margin-bottom:40px;padding-top:4px;display:flex;position:sticky;top:64px}.content-tab{cursor:pointer;color:var(--text-dim);white-space:nowrap;border-bottom:2px solid #0000;padding:12px 20px;font-size:14px;font-weight:600;transition:all .18s}.content-tab:hover{color:var(--text)}.content-tab.active{color:var(--blue-lt);border-bottom-color:var(--blue)}.content-section{display:none}.content-section.active{display:block}.section-title{letter-spacing:-.01em;margin-bottom:20px;font-size:20px;font-weight:700}.learn-grid{background:var(--navy-card);border:1px solid var(--navy-line);border-radius:var(--radius);grid-template-columns:1fr 1fr;gap:10px;padding:24px;display:grid}.learn-item{color:var(--text-muted);align-items:flex-start;gap:10px;font-size:14px;display:flex}.learn-item:before{content:"✓";width:20px;height:20px;color:var(--green);background:#22c55e1f;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;margin-top:1px;font-size:11px;font-weight:700;display:flex}.req-list{flex-direction:column;gap:10px;list-style:none;display:flex}.req-list li{color:var(--text-muted);align-items:flex-start;gap:10px;font-size:14px;display:flex}.req-list li:before{content:"→";color:var(--blue-lt);flex-shrink:0;margin-top:1px;font-weight:700}.audience-list{flex-direction:column;gap:10px;list-style:none;display:flex}.audience-list li{color:var(--text-muted);align-items:flex-start;gap:10px;font-size:14px;display:flex}.audience-list li:before{content:"👤";flex-shrink:0}.content-block{border-bottom:1px solid var(--navy-line);margin-bottom:40px;padding-bottom:40px}.content-block:last-child{border-bottom:none;margin-bottom:0;padding-bottom:0}.syllabus-header{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:8px;margin-bottom:16px;display:flex}.syllabus-summary{color:var(--text-dim);font-size:13px}.expand-all-btn{color:var(--accent);cursor:pointer;background:0 0;border:none;font-family:inherit;font-size:13px;font-weight:600}.expand-all-btn:hover{text-decoration:underline}.module{background:var(--navy-card);border:1px solid var(--navy-line);border-radius:var(--radius-sm);margin-bottom:8px;overflow:hidden}.module-header{cursor:pointer;-webkit-user-select:none;user-select:none;align-items:center;gap:12px;padding:16px 20px;transition:background .15s;display:flex}.module-header:hover{background:#ffffff08}.module-toggle{color:var(--text-dim);text-align:center;flex-shrink:0;width:18px;font-size:12px}.module-num{width:28px;height:28px;color:var(--blue-lt);background:#2e75b626;border-radius:8px;flex-shrink:0;justify-content:center;align-items:center;font-size:11px;font-weight:700;display:flex}.module-info{flex:1}.module-title{color:var(--text);font-size:14px;font-weight:600}.module-meta{color:var(--text-dim);margin-top:2px;font-size:12px}.module-status{flex-shrink:0}.module-body{border-top:1px solid var(--navy-line);display:none}.module.open .module-body{display:block}.module.open .module-toggle{transform:rotate(90deg)}.module-toggle{transition:transform .2s;display:inline-block}.lesson-list{padding:8px 0}.lesson-item{color:var(--text-muted);border-bottom:1px solid #ffffff0a;align-items:center;gap:12px;padding:10px 20px 10px 56px;font-size:13px;transition:background .12s;display:flex}.lesson-item:last-child{border-bottom:none}.lesson-item:hover{background:#ffffff05}.lesson-icon{text-align:center;flex-shrink:0;width:20px;font-size:14px}.lesson-name{flex:1}.lesson-duration{color:var(--text-dim);white-space:nowrap;font-size:12px}.lesson-lock{color:var(--text-dim);background:#ffffff0d;border-radius:4px;padding:2px 8px;font-size:11px}.instructor-card{background:var(--navy-card);border:1px solid var(--navy-line);border-radius:var(--radius);padding:28px}.instructor-top{align-items:flex-start;gap:20px;margin-bottom:20px;display:flex}.instructor-avatar-lg{background:linear-gradient(135deg, var(--blue), var(--accent));color:#fff;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:72px;height:72px;font-size:26px;font-weight:700;display:flex}.instructor-details h3{margin-bottom:4px;font-size:20px;font-weight:700}.instructor-details .post{color:var(--blue-lt);margin-bottom:8px;font-size:14px}.instructor-stats-row{flex-wrap:wrap;gap:20px;display:flex}.inst-stat{color:var(--text-dim);align-items:center;gap:6px;font-size:13px;display:flex}.inst-stat .val{color:var(--text);font-weight:600}.instructor-bio{color:var(--text-muted);margin-bottom:16px;font-size:14px;line-height:1.8}.instructor-bio-block{margin-top:16px}.instructor-bio-block:first-of-type{margin-top:0}.instructor-bio-label{letter-spacing:.06em;text-transform:uppercase;color:var(--text-dim);margin-bottom:6px;font-size:11px;font-weight:700}.instructor-bio-text{color:var(--text-muted);white-space:pre-wrap;font-size:14px;line-height:1.75}.instructor-contact{color:var(--text-dim);margin-top:4px;font-size:13px}.instructor-contact a{color:var(--blue-lt);text-decoration:none}.instructor-contact a:hover{text-decoration:underline}.instructor-team{flex-direction:column;gap:24px;display:flex}.instructor-tags{flex-wrap:wrap;gap:8px;display:flex}.tag{border:1px solid var(--navy-line);color:var(--text-dim);background:#ffffff0d;border-radius:20px;padding:4px 12px;font-size:12px}.reviews-summary{background:var(--navy-card);border:1px solid var(--navy-line);border-radius:var(--radius);grid-template-columns:160px 1fr;align-items:center;gap:32px;margin-bottom:28px;padding:28px;display:grid}.rating-big{text-align:center}.rating-big .number{color:#fff;font-size:56px;font-weight:800;line-height:1}.rating-big .stars-row{color:var(--amber);letter-spacing:2px;margin:8px 0 4px;font-size:18px}.rating-big .total{color:var(--text-dim);font-size:13px}.rating-bars{flex-direction:column;gap:8px;display:flex}.rating-bar-row{align-items:center;gap:10px;font-size:13px;display:flex}.rating-bar-label{color:var(--text-muted);text-align:right;flex-shrink:0;width:16px}.rating-bar-track{background:var(--navy-line);border-radius:3px;flex:1;height:6px;overflow:hidden}.rating-bar-fill{background:var(--amber);border-radius:3px;height:100%;transition:width .4s}.rating-bar-pct{color:var(--text-dim);text-align:right;flex-shrink:0;width:36px;font-size:12px}.review-card{background:var(--navy-card);border:1px solid var(--navy-line);border-radius:var(--radius-sm);margin-bottom:12px;padding:20px}.review-top{justify-content:space-between;align-items:center;gap:12px;margin-bottom:12px;display:flex}.reviewer{align-items:center;gap:10px;display:flex}.reviewer-avatar{color:#fff;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:36px;height:36px;font-size:13px;font-weight:700;display:flex}.reviewer-name{font-size:14px;font-weight:600}.reviewer-date{color:var(--text-dim);font-size:12px}.review-stars{color:var(--amber);letter-spacing:1px;font-size:13px}.review-body{color:var(--text-muted);font-size:14px;line-height:1.75}.review-role-badge{color:var(--blue-lt);background:#2e75b626;border-radius:4px;flex-shrink:0;padding:2px 8px;font-size:10px;font-weight:600}.sidebar-sticky{flex-direction:column;gap:20px;display:flex;position:sticky;top:80px}.detail-card{background:var(--navy-card);border:1px solid var(--navy-line);border-radius:var(--radius);padding:24px}.detail-card-title{color:var(--text);margin-bottom:16px;font-size:14px;font-weight:700}.detail-row{border-bottom:1px solid #ffffff0d;align-items:flex-start;gap:12px;padding:10px 0;font-size:13px;display:flex}.detail-row:last-child{border-bottom:none;padding-bottom:0}.detail-icon{text-align:center;width:22px;color:var(--text-dim);flex-shrink:0;margin-top:1px;font-size:16px}.detail-label{color:var(--text-dim);flex-shrink:0;min-width:90px}.detail-value{color:var(--text);font-weight:500}.related-card{background:var(--navy-card);border:1px solid var(--navy-line);border-radius:var(--radius-sm);align-items:flex-start;gap:14px;margin-bottom:10px;padding:14px;transition:border-color .15s,transform .15s;display:flex}.related-card:hover{border-color:#2e75b666;transform:translate(2px)}.related-icon{border-radius:10px;flex-shrink:0;justify-content:center;align-items:center;width:44px;height:44px;font-size:20px;display:flex}.related-title{color:var(--text);margin-bottom:3px;font-size:13px;font-weight:600;line-height:1.3}.related-meta{color:var(--text-dim);font-size:11px}.related-enroll{color:var(--green);font-size:11px;font-weight:600}.not-enrolled-banner{border-radius:var(--radius);background:linear-gradient(135deg,#2e75b61f,#5b8fff12);border:1px solid #2e75b64d;align-items:center;gap:16px;margin-bottom:32px;padding:20px 24px;display:flex}.not-enrolled-banner .neb-icon{flex-shrink:0;font-size:24px}.not-enrolled-banner .neb-text .top{margin-bottom:4px;font-size:15px;font-weight:700}.not-enrolled-banner .neb-text .sub{color:var(--text-muted);font-size:13px}.not-enrolled-banner .neb-action{flex-shrink:0;margin-left:auto}@keyframes pulse{0%,to{opacity:1}50%{opacity:.4}}@keyframes fade-in{0%{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}.fade-in{animation:.4s both fade-in}@media (max-width:960px){.course-hero-inner{grid-template-columns:1fr}.enroll-card-wrap{position:static}.course-body{grid-template-columns:1fr}.sidebar-sticky{position:static}.sticky-enroll-bar{display:flex}.learn-grid,.reviews-summary{grid-template-columns:1fr}.rating-big{justify-content:center;align-items:center;gap:16px;display:flex}nav .nav-links{display:none}}@media (max-width:600px){.course-quick-stats{gap:12px}.instructor-top{flex-direction:column}.reviews-summary{gap:20px}}}