:root{--lx-ink:#040608;--lx-paper:#f8fafc;--lx-blue:#e6eef7;--lx-lime:#c4f69a;--lx-lavender:#c9c6ff;--lx-purple:#4139c3;--lx-coral:#d66859;--lx-line:#d9dee6;--lx-muted:#6c7079}
:where(a,button,input,textarea,select):focus-visible{outline:3px solid var(--lx-purple)!important;outline-offset:3px!important}
body{background:var(--lx-paper)!important;color:var(--lx-ink)!important;font-family:'DM Sans',sans-serif!important}body:before{display:none!important}
.course-access-bar{position:sticky;z-index:19;top:72px;min-height:46px;display:flex;align-items:center;justify-content:center;gap:6px;padding:7px 16px;overflow-x:auto;color:#343b46;border-bottom:1px solid #d5dce6;background:rgba(255,255,255,.96);box-shadow:0 4px 18px rgba(34,47,64,.05);scrollbar-width:thin}.course-access-bar:after{position:absolute;right:0;bottom:-1px;left:0;height:3px;background:linear-gradient(90deg,#aac4f7 0 25%,var(--lx-lime) 25% 50%,var(--lx-lavender) 50% 75%,var(--lx-coral) 75%);content:""}.course-access-bar>span{flex:0 0 auto;margin-right:4px;color:#6b7280;font:900 9px/1 'DM Sans',sans-serif;letter-spacing:.09em;text-transform:uppercase}.course-access-bar a{min-height:32px;display:inline-flex;flex:0 0 auto;align-items:center;gap:6px;padding:5px 11px;color:#505965;border:1px solid transparent;border-radius:999px;font:850 10px/1 'DM Sans',sans-serif;text-decoration:none}.course-access-bar a:hover,.course-access-bar a[aria-current=page]{color:#241e79;border-color:#c9c5f4;background:#efeeff}.course-access-bar a:last-child{color:#24351a;border-color:#b9d99e;background:#f0fde5}.course-access-bar small{padding:3px 5px;color:#fff;border-radius:999px;background:var(--lx-purple);font-size:7px;font-weight:900;letter-spacing:.05em;text-transform:uppercase}.course-access-bar+.pg .sidebar{top:118px!important;height:calc(100vh - 118px)!important}
.topnav{height:72px!important;padding:0 clamp(20px,4vw,58px)!important;background:var(--lx-ink)!important;border:0!important;display:grid!important;grid-template-columns:minmax(155px,1fr) auto minmax(155px,1fr)!important;align-items:center!important}.tnlogo{justify-self:start;font:800 17px 'Manrope',sans-serif!important;letter-spacing:-.04em!important;color:#fff!important}.tnlogo span{color:#fff!important}.tnlinks{justify-self:center;margin-left:0!important;gap:3px!important}.tnlinks a,.tnaccount{color:#8e939b!important;border-radius:20px!important;padding:9px 15px!important;font-size:12px!important;font-weight:600!important;text-decoration:none!important}.tnlinks a:hover,.tnaccount:hover{background:#fff!important;color:var(--lx-ink)!important}.tnaccount{justify-self:end}
.sidebar{top:72px!important;height:calc(100vh - 72px)!important;width:275px!important;background:var(--lx-blue)!important;border-right:1px solid #cad5e1!important}.sb-head{padding:22px 20px 14px!important;border-color:#cad5e1!important}.sb-label{font:800 10px 'DM Sans',sans-serif!important;letter-spacing:.1em!important;color:#626975!important}.sb-nav{padding:8px 12px!important}.toc-a{color:#656d78!important;border:0!important;border-radius:9px!important;padding:10px 11px!important;font-size:12px!important}.toc-a:hover,.toc-a.on{color:var(--lx-ink)!important;background:#fff!important;padding-left:11px!important;box-shadow:0 3px 12px rgba(45,60,80,.06)!important}.sb-foot{border-color:#cad5e1!important;padding:14px 20px 20px!important}.sb-home{color:#59616d!important;font-size:11px!important;font-weight:700!important}.sb-home:hover{color:var(--lx-purple)!important}
.main{margin-left:275px!important;background:var(--lx-paper)!important;min-height:calc(100vh - 72px)!important}.hero{min-height:230px!important;background-image:linear-gradient(rgba(93,119,153,.11) 1px,transparent 1px),linear-gradient(90deg,rgba(93,119,153,.11) 1px,transparent 1px)!important;background-color:var(--lx-blue)!important;background-size:22px 22px!important;border-bottom:1px solid #cdd7e3!important}.hero:after{content:'{ }';position:absolute;right:7%;top:35%;font:800 38px 'Manrope';color:var(--lx-purple);transform:rotate(-8deg)}.hero-ov{background:linear-gradient(90deg,rgba(230,238,247,.98),rgba(230,238,247,.73))!important}.hero-ct{padding:42px clamp(25px,5vw,68px)!important}.hbc,.hbc a{color:#737b86!important}.hbc a:hover{color:var(--lx-purple)!important}.htag{font:800 9px 'DM Sans',sans-serif!important;color:#3b35a9!important;background:var(--lx-lavender)!important;border:0!important;border-radius:6px!important;padding:5px 8px!important}.hti{font:800 clamp(32px,5vw,54px) 'Manrope',sans-serif!important;color:var(--lx-ink)!important;letter-spacing:-.055em!important;margin-bottom:0!important}.hmbtn{background:#fff!important;border-color:#cbd4df!important;color:var(--lx-ink)!important}
.art{padding:42px clamp(24px,6vw,78px)!important;max-width:1080px!important}.ch-sec{margin-bottom:3.7rem!important}.ch-h2{font:800 clamp(23px,3vw,31px) 'Manrope',sans-serif!important;color:var(--lx-ink)!important;letter-spacing:-.045em!important;border-color:var(--lx-line)!important;padding-bottom:.75rem!important}.ch-sub{font:700 15px 'Manrope',sans-serif!important;color:#343941!important;margin-top:1.45rem!important}.ch-list{gap:7px!important}.ch-list li{background:#fff!important;border:1px solid var(--lx-line)!important;border-radius:10px!important;color:#555c67!important;padding:11px 14px!important;font-size:14px!important;box-shadow:0 4px 15px rgba(45,60,80,.025)!important}.ch-list li:hover{border-color:#b4afe9!important}.ch-list li:before{content:'✓'!important;width:20px;height:20px;border-radius:6px;background:#e9e7ff;color:var(--lx-purple)!important;display:grid;place-items:center;margin-top:1px!important;font-size:9px!important;font-weight:800}.ch-list li strong{color:var(--lx-ink)!important}.ch-note{background:#e9fbd9!important;border:1px solid #d0ecb9!important;color:#4f5d47!important;border-radius:10px!important}.ch-note-i{color:#5c9f32!important}.pgnav{border-color:var(--lx-line)!important;padding:22px clamp(24px,6vw,78px)!important}.ch-pgbtn{background:#fff!important;border-color:var(--lx-line)!important;color:#4d535c!important}.ch-pgbtn:hover{border-color:var(--lx-purple)!important;color:var(--lx-purple)!important}
.ch-list li{position:relative!important;display:block!important;padding-left:44px!important;overflow-wrap:anywhere!important}.ch-list li:before{position:absolute!important;left:14px!important;top:11px!important;margin:0!important}.ch-list li strong{display:inline!important}
.study-progress-card{background:#e9e7ff!important;border-color:#cbc7f6!important}.study-progress-copy strong{font-family:'Manrope',sans-serif!important;color:var(--lx-ink)!important}.study-progress-copy span{color:#646978!important}.study-progress-score{color:var(--lx-purple)!important}.study-progress-track{background:#d4d1ed!important}.study-progress-track span{background:var(--lx-purple)!important}.study-check{background:#fff!important;border-color:var(--lx-line)!important;color:#656b75!important}.study-check:hover{border-color:var(--lx-purple)!important;color:var(--lx-purple)!important}.study-check.done{background:#e9fbd9!important;border-color:#c9e9af!important;color:#528f2d!important}
.prac-bar{margin-top:3rem;border-top:1px solid var(--lx-line);padding-top:2rem}.prac-label{font:800 10px 'DM Sans',sans-serif;color:#737984;letter-spacing:.09em;text-transform:uppercase;margin-bottom:1rem}.prac-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:10px}.prac-btn{display:grid;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:10px;min-width:0;padding:14px;border:1px solid var(--lx-line);border-radius:12px;background:#fff;color:var(--lx-ink);text-decoration:none;box-shadow:0 5px 18px rgba(45,60,80,.035);transition:border-color .18s,transform .18s,box-shadow .18s}.prac-btn:hover{border-color:var(--lx-purple);transform:translateY(-2px);box-shadow:0 10px 24px rgba(45,60,80,.08)}.prac-btn-icon{width:38px;height:38px;border-radius:9px;display:grid;place-items:center;font:800 9px 'DM Sans',sans-serif;background:var(--lx-blue);color:#476aa5}.prac-btn-paper .prac-btn-icon{background:#f7e1dd;color:#ad5045}.prac-btn-flash .prac-btn-icon{background:#e9fbd9;color:#528f2d}.prac-btn-text{display:grid;min-width:0}.prac-btn-title{font:800 12px 'Manrope',sans-serif}.prac-btn-sub{color:#737984;font-size:10px;line-height:1.35;margin-top:2px}.prac-arrow{font-weight:800;color:var(--lx-purple)}
@media(max-width:860px){.course-access-bar{top:114px;justify-content:flex-start}.course-access-bar+.pg .sidebar{top:160px!important;height:calc(100vh - 160px)!important}.main{margin-left:0!important}.art{padding-inline:18px!important}.hero:after{display:none}.topnav{height:114px!important;padding:0 14px!important;display:grid!important;grid-template-columns:minmax(0,1fr) auto!important;grid-template-rows:62px 52px!important}.tnlogo{grid-column:1;grid-row:1}.tnaccount{grid-column:2;grid-row:1;margin:0!important;padding-inline:11px!important}.tnlinks{grid-column:1/-1;grid-row:2;justify-self:stretch;display:flex!important;max-width:100%;gap:2px!important;margin:0!important;padding:3px 0 9px;overflow-x:auto;scrollbar-width:thin}.tnlinks a{flex:0 0 auto;white-space:nowrap;padding:8px 11px!important}.prac-row{grid-template-columns:1fr}}
@media(max-width:680px){.course-access-bar{top:114px}.course-access-bar+.pg .sidebar{top:160px!important;height:calc(100vh - 160px)!important}}
/* Shared legal footer for lesson pages. */
.platform-legal-footer{display:grid;grid-template-columns:auto 1fr;gap:14px 28px;align-items:start;padding:28px clamp(20px,5vw,70px);border-top:1px solid rgba(130,142,160,.28);background:#080b10;color:#8993a2;font:700 11px/1.5 system-ui,sans-serif}.platform-legal-footer nav{display:flex;justify-content:flex-end;gap:16px;flex-wrap:wrap}.platform-legal-footer a{color:#aeb8c8;text-decoration:none}.platform-legal-footer a:hover{color:#c4f69a}.platform-legal-footer small{grid-column:1/-1;color:#737e8d;font-size:9px;font-weight:600}@media(max-width:560px){.platform-legal-footer{grid-template-columns:1fr}.platform-legal-footer nav{justify-content:flex-start}}