.clv-heading{background:#080808;color:#fff;border-bottom:3px solid #c60000;padding:20px 0 24px}
.clv-heading .breadcrumbs{padding:0;margin:0 0 16px;font-size:13px;line-height:1.5}
.clv-heading .kicker{margin:0 0 10px;font-size:12px}
.clv-heading h1{font-size:34px;line-height:1.18;letter-spacing:0;max-width:36ch;margin:0;color:#fff}
.clv-heading .hero-sub{font-size:16px;line-height:1.55;margin:12px 0 0;max-width:80ch;color:#eee}
.clv-heading .classroom-meta{margin-top:16px;gap:8px;display:flex;flex-wrap:wrap}
.clv-heading .classroom-meta span{font-size:11px;line-height:1.4;padding:6px 9px;margin:0}
.clv-shell{display:grid;grid-template-columns:250px minmax(0,1fr);gap:32px;align-items:start;padding-block:28px 36px}
.clv-sidebar{position:sticky;top:96px;border-right:1px solid #d9d9d9;padding-right:20px;max-height:calc(100vh - 124px);overflow:auto;scrollbar-width:thin}
.clv-course-home{display:inline-flex;align-items:center;min-height:44px;color:#a90000;font-weight:800;font-size:13px;text-decoration:none;margin:0 0 10px}
.clv-outline-title{font-size:15px!important;line-height:1.4!important;margin:0 0 8px!important;letter-spacing:0!important;text-transform:none!important;color:#141414!important}
.clv-chapters{list-style:none;padding:0;margin:0}
.clv-chapters li{padding:0;margin:0;border-top:1px solid #e3e3e3}
.clv-chapters a{display:grid;grid-template-columns:24px minmax(0,1fr);gap:7px;align-items:center;min-height:48px;padding:10px 8px;text-decoration:none;font-size:12px;line-height:1.4;color:#252525;overflow-wrap:anywhere}
.clv-chapters a span{color:#a90000;font-weight:800}
.clv-chapters a[aria-current=page]{background:#101010;color:white;border-left:3px solid #c60000;padding-left:5px}
.clv-chapters a[aria-current=page] span{color:#fff}
.clv-chapters a:hover{background:#f3f3f3;color:#101010}
.clv-chapters a[aria-current=page]:hover{background:#292929;color:white}
.clv-stage{min-width:0}
.clv-mobile-outline{display:none}
.clv-tools{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px;margin:0 0 16px}
.clv-tools a{display:flex;align-items:center;justify-content:center;gap:7px;min-height:46px;border:1px solid #bdbdbd;color:#151515;padding:10px 8px;font-size:13px;line-height:1.4;font-weight:800;text-decoration:none;text-align:center;overflow-wrap:anywhere}
.clv-tools a svg{width:17px;height:17px;flex:none}
.clv-tools a:last-child{background:#b60000;border-color:#b60000;color:white}
.clv-tools a:hover{background:#101010;border-color:#101010;color:white}
.clv-watch{scroll-margin-top:100px;padding:0}
.clv-watch .lesson-video{margin:0;aspect-ratio:16/9;width:100%;height:auto;min-height:0;background:#080808;border:0;border-radius:0}
.clv-watch .lesson-video iframe{display:block;width:100%;height:100%;border:0;aspect-ratio:16/9}
.clv-chapter-nav{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin:14px 0 28px}
.clv-chapter-nav a{display:flex;align-items:center;gap:10px;min-height:56px;padding:10px 0;color:#191919;text-decoration:none;border-bottom:2px solid #c60000;line-height:1.4}
.clv-chapter-nav a:last-child{justify-content:flex-end;text-align:right}
.clv-chapter-nav small{display:block;color:#626262;font-size:11px;text-transform:uppercase;line-height:1.4;margin-bottom:3px}
.clv-chapter-nav strong{display:block;font-size:13px;line-height:1.4;letter-spacing:0}
.clv-chapter-nav svg{width:18px;height:18px;flex:none;color:#b00000}
.clv-resources.classroom-resources{padding:0;margin:0 0 24px;background:white;color:#171717;border:0;scroll-margin-top:100px}
.clv-resources>.wrap{width:100%;max-width:none;margin:0}
.clv-resources .section-title{margin:0 0 16px}
.clv-resources .section-title .kicker{font-size:11px;margin:0 0 6px}
.clv-resources .section-title h2{font-size:21px;line-height:1.3;margin:0;letter-spacing:0}
.clv-resources .section-title .lead{font-size:14px;line-height:1.55;margin:10px 0 0;color:#555}
.clv-resources .classroom-resource-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin:0}
.clv-resources .classroom-resource-card{border:1px solid #d9d9d9;border-top:3px solid #101010;padding:18px;min-width:0;border-radius:4px;background:#fff;color:#191919}
.clv-resources .resource-featured{border-top-color:#b60000}
.clv-resources .resource-label{font-size:11px;line-height:1.4;color:#a00000}
.clv-resources .classroom-resource-card h3{font-size:17px;line-height:1.3;letter-spacing:0;margin:8px 0}
.clv-resources .classroom-resource-card p{font-size:13px;line-height:1.6;color:#555;margin:0 0 14px}
.clv-resources .classroom-resource-card .btn{font-size:12px;min-height:44px;padding:11px 12px;margin:0;max-width:100%;white-space:normal}
.clv-slide-link{display:flex;align-items:center;gap:8px;min-height:44px;margin-top:12px;font-size:13px;color:#a00000;font-weight:700;text-decoration:underline}
.clv-slide-link svg{width:17px;height:17px;flex:none}
.clv-extras{border-block:1px solid #cfcfcf;margin:22px 0;font-size:14px}
.clv-extras>summary{display:flex;align-items:center;justify-content:space-between;gap:15px;min-height:52px;padding:12px 0;color:#171717;font-size:14px;font-weight:800;cursor:pointer;list-style:none}
.clv-extras>summary::-webkit-details-marker{display:none}
.clv-extras>summary::after{content:'+';font-size:20px;color:#b00000}
.clv-extras[open]>summary::after{content:'-'}
.clv-extras .lesson-overview{display:block;margin:0;padding:12px 0 20px;gap:0}
.clv-extras h2,.clv-extras h3{font-size:18px!important;line-height:1.4!important;letter-spacing:0!important;margin:12px 0!important;color:#1a1a1a!important}
.clv-extras p,.clv-extras li{font-size:14px!important;line-height:1.65!important;color:#4a4a4a!important}
.clv-extras .lesson-objectives{padding-left:20px}
.clv-extras .lesson-sequence,.clv-extras .chapter-summary,.clv-extras .band{padding:12px 0 20px;background:#fff;color:#171717;border:0}
.clv-extras .wrap{width:100%;max-width:none}
.clv-extras .lesson-sequence ol{display:grid;grid-template-columns:1fr;gap:12px}
.clv-extras .lesson-sequence li{padding:0;border:0;display:flex;gap:12px}
.clv-extras .lesson-sequence li>span{font-size:13px;padding:3px;color:#b00000;background:transparent}
.clv-extras .related-links{display:grid;grid-template-columns:1fr;gap:4px}
.clv-extras .related-links a{min-height:44px;font-size:13px;padding:10px 0;color:#a00000}
.clv-stage .classroom-disclaimer{padding:12px 0 0;border:0;background:#fff}
.clv-stage .classroom-disclaimer .wrap{width:100%;max-width:none}
.clv-stage .classroom-disclaimer p,.clv-stage .classroom-disclaimer a{font-size:12px;line-height:1.6;color:#565656}
.clv-after.classroom-next{padding:28px 0;border-top:1px solid #d7d7d7}
.clv-after h2{font-size:22px;line-height:1.3;letter-spacing:0}
.clv-after p{font-size:14px;line-height:1.6;max-width:85ch}
.clv-after .related-links{margin-top:16px}
.clv-after .related-links a{font-size:13px;min-height:44px}
.clv-shell :where(a,summary):focus-visible{outline:3px solid #b60000;outline-offset:3px}
.clv-shell a[aria-current=page]:focus-visible,.clv-tools a:last-child:focus-visible{outline-color:#111;box-shadow:0 0 0 2px white}
@media(max-width:1050px){.clv-shell{grid-template-columns:215px minmax(0,1fr);gap:24px}.clv-sidebar{padding-right:14px}.clv-tools a{font-size:12px;padding-inline:5px}.clv-tools a svg{display:none}}
@media(max-width:860px){.clv-shell{display:block;padding-block:18px 26px}.clv-sidebar{display:none}.clv-mobile-outline{display:block;border:1px solid #bdbdbd;margin:0 0 12px;background:white}.clv-mobile-outline>summary{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:46px;padding:10px 12px;list-style:none;font-size:13px;font-weight:800;color:#171717;cursor:pointer}.clv-mobile-outline>summary::-webkit-details-marker{display:none}.clv-mobile-outline>summary::after{content:'+';font-size:19px;color:#b00000}.clv-mobile-outline[open]>summary::after{content:'-'}.clv-mobile-outline nav{max-height:360px;overflow:auto;border-top:1px solid #d7d7d7;padding:8px}.clv-mobile-outline .clv-course-home{margin-bottom:0}.clv-mobile-outline .clv-chapters a{font-size:13px}.clv-tools a svg{display:block}}
@media(max-width:600px){.clv-heading{padding:16px 0 20px}.clv-heading h1{font-size:27px;line-height:1.2}.clv-heading .breadcrumbs{font-size:12px;margin-bottom:13px}.clv-heading .hero-sub{font-size:14px;margin-top:10px}.clv-heading .kicker{font-size:10px;margin-bottom:8px}.clv-heading .classroom-meta{margin-top:12px;gap:6px}.clv-heading .classroom-meta span{font-size:10px;padding:5px 7px}.clv-tools{grid-template-columns:repeat(2,minmax(0,1fr));gap:7px;margin-bottom:12px}.clv-tools a{font-size:12px;min-height:44px}.clv-chapter-nav{gap:15px;margin-bottom:23px}.clv-chapter-nav a{align-items:flex-start;min-height:62px}.clv-chapter-nav strong{font-size:12px}.clv-chapter-nav svg{width:15px;margin-top:3px}.clv-resources .classroom-resource-grid{grid-template-columns:1fr;gap:12px}.clv-resources .classroom-resource-card{padding:16px}.clv-resources .classroom-resource-card h3{font-size:17px}.clv-resources .section-title h2{font-size:20px}.clv-extras>summary{font-size:13px}.clv-after .related-links{display:grid;grid-template-columns:1fr;gap:3px}}