@import "https://fonts.googleapis.com/css2?family=Libre+Franklin:wght@400;500;600;700&family=Source+Serif+4:opsz,wght@8..60,600;8..60,700&display=swap";:root{--maroon:#500000;--maroon-dark:#360000;--maroon-light:#7a2020;--navy:#18233d;--ink:#202331;--muted:#666a76;--cream:#f7f3eb;--paper:#fffdf9;--line:#ded8ce;--gold:#d6b67e;--teal:#2f746c;--amber:#b77724;--coral:#a94c42;--blue:#405f8c;--serif:"Source Serif 4", Georgia, serif;--sans:"Libre Franklin", Arial, sans-serif;--shadow:0 16px 45px #311c1c17}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:7rem}body{color:var(--ink);background:var(--paper);font-family:var(--sans);margin:0;font-size:16px;line-height:1.65}img,iframe{max-width:100%}a{color:inherit}button,input{font:inherit}h1,h2,h3,p{margin-top:0}h1,h2,h3{color:var(--navy);font-family:var(--serif);line-height:1.08}h1{letter-spacing:-.04em;font-size:clamp(2.8rem,6vw,5.4rem)}h2{letter-spacing:-.025em;font-size:clamp(2rem,4vw,3.25rem)}h3{font-size:1.4rem}.shell{width:min(1180px,100% - 40px);margin-inline:auto}.narrow{max-width:850px}.section{padding-block:clamp(4.5rem,8vw,8rem)}.eyebrow{color:var(--maroon);letter-spacing:.16em;text-transform:uppercase;margin:0 0 .8rem;font-size:.72rem;font-weight:700}.eyebrow.light{color:var(--gold)}.lede{font-size:clamp(1.1rem,2vw,1.35rem);line-height:1.55}.skip-link{z-index:99;background:#fff;padding:.7rem 1rem;position:fixed;top:-5rem;left:1rem}.skip-link:focus{top:1rem}.site-header{z-index:30;backdrop-filter:blur(14px);background:#fffdf9f5;border-bottom:1px solid #5000001f;position:sticky;top:0}.accent-rail{grid-template-columns:7fr 1fr 1fr 1fr;height:5px;display:grid}.accent-rail span:first-child{background:var(--maroon)}.accent-rail span:nth-child(2){background:var(--gold)}.accent-rail span:nth-child(3){background:var(--navy)}.accent-rail span:nth-child(4){background:var(--maroon-light)}.header-inner{align-items:center;gap:2rem;min-height:82px;display:flex}.brand{align-items:center;margin-right:auto;text-decoration:none;display:flex}.brand img{width:205px;height:auto;display:block}.header-inner nav{align-items:center;gap:1.6rem;display:flex}.header-inner nav a{color:var(--navy);padding:.5rem 0;font-size:.88rem;font-weight:600;text-decoration:none;position:relative}.header-inner nav a[aria-current=page]:after{content:"";background:var(--maroon);height:2px;position:absolute;bottom:0;left:0;right:0}.button{color:#fff;background:var(--maroon);border:1px solid var(--maroon);border-radius:2px;justify-content:center;align-items:center;gap:.7rem;min-height:48px;padding:.75rem 1.15rem;font-size:.86rem;font-weight:700;text-decoration:none;transition:background .2s,transform .2s;display:inline-flex}.button:hover{background:var(--maroon-dark);transform:translateY(-1px)}.button-small{min-height:40px;padding:.55rem .9rem}.button-gold{color:var(--maroon-dark);background:var(--gold);border-color:var(--gold)}.button-gold:hover{background:#e4c998}.button-outline-light{background:0 0;border-color:#ffffff8c}.button-outline-light:hover{background:#ffffff17}.button-secondary{color:var(--maroon);background:0 0}.text-link{color:var(--maroon);font-size:.86rem;font-weight:700;text-decoration:none}.text-link:hover{text-decoration:underline}.hero{color:#fff;background:linear-gradient(100deg,#500000fa 0%,#500000ed 56%,#360000d1 100%),repeating-linear-gradient(90deg,#0000 0 79px,#ffffff0d 80px);position:relative;overflow:hidden}.hero:after{content:"";border:70px solid #d6b67e26;width:510px;height:510px;position:absolute;top:-210px;right:-190px;transform:rotate(36deg)}.hero-grid{z-index:1;grid-template-columns:1.55fr .75fr;align-items:center;gap:clamp(3rem,8vw,8rem);min-height:690px;padding-block:6rem;display:grid;position:relative}.hero h1{color:#fff;max-width:780px}.hero-copy .lede{color:#ffffffd1;max-width:750px}.button-row{flex-wrap:wrap;gap:.8rem;margin:2rem 0 1rem;display:flex}.hero-note{color:#ffffffa6;font-size:.78rem}.progress-panel{color:var(--ink);background:var(--paper);border-top:5px solid var(--gold);padding:2rem;box-shadow:0 30px 80px #00000038}.progress-number{color:var(--maroon);font-family:var(--serif);font-size:5rem;font-weight:700;line-height:1}.progress-panel>p:not(.eyebrow){color:var(--muted)}.progress-track{background:#e7e1d7;height:5px;overflow:hidden}.progress-track.large{height:8px;margin-top:1.2rem}.progress-track span{background:var(--maroon);width:0;height:100%;transition:width .35s;display:block}.progress-divider{border-top:1px solid var(--line);margin:2rem 0 1rem}.next-label{letter-spacing:.12em;text-transform:uppercase;font-size:.72rem;font-weight:700;margin-bottom:.5rem!important}.next-week{grid-template-columns:1fr auto;text-decoration:none;display:grid}.next-week span:first-child{color:var(--maroon);text-transform:uppercase;font-size:.78rem;font-weight:700}.next-week strong{color:var(--navy);grid-column:1}.next-week span:last-child{color:var(--maroon);grid-area:1/2/span 2;align-self:center;font-size:1.4rem}.stat-band{color:#fff;background:var(--navy)}.stats{grid-template-columns:repeat(4,1fr);display:grid}.stats div{border-right:1px solid #ffffff26;flex-direction:column;padding:1.7rem 2rem;display:flex}.stats div:first-child{border-left:1px solid #ffffff26}.stats strong{font-family:var(--serif);font-size:2rem;line-height:1.1}.stats span{color:#ffffffa8;letter-spacing:.08em;text-transform:uppercase;font-size:.75rem}.section-heading{max-width:780px;margin-bottom:3rem}.split-heading{grid-template-columns:1.2fr .8fr;align-items:end;gap:5rem;max-width:none;display:grid}.split-heading>p{color:var(--muted)}.phase-list{gap:5rem;display:grid}.phase{--phase:var(--teal)}.tone-amber{--phase:var(--amber)}.tone-coral{--phase:var(--coral)}.tone-blue{--phase:var(--blue)}.phase-heading{border-bottom:3px solid var(--phase);align-items:center;gap:1rem;padding-bottom:1rem;display:flex}.phase-heading>span{color:var(--phase);font-family:var(--serif);font-size:2.5rem;font-weight:700}.phase-heading p{color:var(--muted);letter-spacing:.12em;text-transform:uppercase;margin:0;font-size:.68rem;font-weight:700}.phase-heading h3{margin:0;font-size:1.8rem}.week-grid{grid-template-columns:repeat(3,1fr);gap:1rem;margin-top:1rem;display:grid}.week-card{--phase:var(--teal);border:1px solid var(--line);border-top:4px solid var(--phase);background:#fff;flex-direction:column;min-height:390px;padding:1.5rem;transition:transform .2s,box-shadow .2s;display:flex;box-shadow:0 4px 20px #1f23310a}.week-card:hover{box-shadow:var(--shadow);transform:translateY(-3px)}.week-card.compact{min-height:280px}.week-card-top{color:var(--muted);letter-spacing:.08em;text-transform:uppercase;justify-content:space-between;gap:1rem;font-size:.67rem;font-weight:700;display:flex}.week-number{color:var(--phase)}.week-card h3{margin:1.2rem 0 .8rem}.week-card h3 a{text-decoration:none}.week-card p{color:var(--muted);font-size:.9rem}.week-meta{color:var(--muted);border-top:1px solid var(--line);flex-wrap:wrap;gap:.35rem .8rem;margin-top:auto;padding:1rem 0 .8rem;font-size:.68rem;display:flex}.week-card .text-link{margin-top:.9rem}.maroon-section{color:#fff;background:var(--maroon);padding-block:clamp(5rem,9vw,9rem)}.maroon-section h2{color:#fff}.promise-grid{grid-template-columns:.75fr 1.25fr;gap:7rem;display:grid}.promise-list{display:grid}.promise-list article{border-top:1px solid #ffffff40;grid-template-columns:45px 1fr;gap:.2rem 1rem;padding:1.5rem 0;display:grid}.promise-list span{color:var(--gold);font-family:var(--serif);grid-row:1/span 2;font-size:1.5rem}.promise-list h3{color:#fff;margin-bottom:.3rem}.promise-list p{color:#ffffffb3;margin:0}.resource-callout{justify-content:space-between;align-items:end;gap:3rem;display:flex}.resource-callout>div{max-width:720px}.resource-callout>div>p:last-child{color:var(--muted)}.page-hero{color:#fff;background:var(--maroon);padding-block:clamp(5rem,9vw,8rem)}.page-hero h1{color:#fff;margin-bottom:1.25rem}.page-hero .lede{color:#ffffffc7;margin:0}.compact-hero{padding-block:5rem}.curriculum-phase{--phase:var(--teal);border-top:4px solid var(--phase);grid-template-columns:260px 1fr;gap:3rem;padding:3rem 0 5rem;display:grid}.curriculum-phase-heading>span{color:var(--phase);letter-spacing:.12em;text-transform:uppercase;font-size:.7rem;font-weight:700}.curriculum-phase-heading h2{margin:.5rem 0 1rem;font-size:2.3rem}.curriculum-phase-heading p{color:var(--muted);font-size:.9rem}.week-grid.detailed{grid-template-columns:repeat(3,1fr);margin:0}.lesson-shell{grid-template-columns:235px minmax(0,1fr);gap:4rem;padding-block:3rem 7rem;display:grid}.week-sidebar{align-self:start;max-height:calc(100vh - 140px);position:sticky;top:115px;overflow:auto}.week-sidebar ol{border-top:1px solid var(--line);margin:0;padding:0;list-style:none}.week-sidebar li{border-bottom:1px solid var(--line)}.week-sidebar a{grid-template-columns:28px 1fr;gap:.6rem;padding:.7rem .5rem;text-decoration:none;display:grid}.week-sidebar a>span:first-child{color:var(--muted);font-size:.68rem;font-weight:700}.week-sidebar strong{color:var(--navy);font-size:.74rem;line-height:1.25;display:block}.week-sidebar small{color:var(--muted);font-size:.61rem}.week-sidebar .current{background:var(--cream);box-shadow:inset 3px 0 var(--maroon)}.week-sidebar .current a>span:first-child,.week-sidebar .current small{color:var(--maroon)}.lesson{min-width:0}.lesson-hero{--phase:var(--teal);background:var(--cream);border-top:7px solid var(--phase);padding:clamp(2rem,5vw,4.5rem)}.lesson-kicker{color:var(--phase);letter-spacing:.12em;text-transform:uppercase;justify-content:space-between;margin-bottom:3rem;font-size:.72rem;font-weight:700;display:flex}.lesson-hero h1{font-size:clamp(2.7rem,5vw,4.7rem)}.lesson-hero>p{color:#565a65;max-width:780px;font-size:1.08rem}.lesson-metrics{border-top:1px solid var(--line);color:var(--muted);text-transform:uppercase;flex-wrap:wrap;gap:.8rem 2.2rem;margin-top:2rem;padding-top:1.4rem;font-size:.75rem;display:flex}.lesson-metrics strong{color:var(--navy);font-size:.9rem}.lesson-nav{z-index:20;border-bottom:1px solid var(--line);background:#fffdf9f5;gap:1.5rem;padding:.8rem 1rem;display:flex;position:sticky;top:87px;overflow-x:auto}.lesson-nav a{color:var(--muted);text-transform:uppercase;font-size:.72rem;font-weight:700;text-decoration:none}.lesson-nav a:hover{color:var(--maroon)}.lesson-section{border-bottom:1px solid var(--line);padding:5rem 2rem}.lesson-section>h2{max-width:760px}.section-intro{max-width:720px;color:var(--muted)}.objective-list{counter-reset:objective;grid-template-columns:1fr 1fr;gap:.8rem 2rem;margin:2rem 0 0;padding:0;list-style:none;display:grid}.objective-list li{border-top:1px solid var(--line);counter-increment:objective;padding:.8rem 0 .8rem 2.4rem;position:relative}.objective-list li:before{content:counter(objective, decimal-leading-zero);color:var(--maroon);font-size:.68rem;font-weight:700;position:absolute;left:0}.concept-list{margin-top:2.5rem}.concept-list article{border-top:1px solid var(--line);grid-template-columns:42px 1fr;gap:1rem;padding:1.4rem 0;display:grid}.concept-list article>span{color:var(--maroon);font-family:var(--serif);font-size:1.25rem}.concept-list h3{margin-bottom:.4rem}.concept-list p{color:#525662;margin:0}.split-content{grid-template-columns:1fr .75fr;gap:4rem;display:grid}.plain-list{padding-left:1.2rem}.plain-list li{margin-bottom:1rem}.warning-card,.reflection-card{border-top:4px solid var(--coral);background:#f4e9e6;padding:2rem}.warning-card h2{font-size:1.8rem}.warning-card ul{margin:0;padding-left:1.2rem}.warning-card li{margin-bottom:.65rem;font-size:.9rem}.video-list{gap:2rem;margin-top:2.5rem;display:grid}.video-card{border:1px solid var(--line);background:#fff;grid-template-columns:1fr 1.2fr;display:grid;box-shadow:0 8px 28px #1f23310f}.video-embed{background:var(--navy);min-height:260px;position:relative}.video-embed iframe{border:0;width:100%;height:100%;position:absolute;inset:0}.video-copy{padding:1.7rem}.video-kicker{color:var(--maroon);letter-spacing:.1em;text-transform:uppercase;justify-content:space-between;font-size:.67rem;font-weight:700;display:flex}.video-copy h3{margin:1rem 0 .3rem}.video-channel{color:var(--muted);font-size:.78rem;font-weight:700}.video-copy>p:last-of-type{color:var(--muted);font-size:.86rem}.video-actions{border-top:1px solid var(--line);justify-content:space-between;align-items:center;gap:1rem;margin-top:1.5rem;padding-top:1rem;display:flex}.check-control{cursor:pointer;color:var(--navy);align-items:center;gap:.7rem;font-size:.82rem;font-weight:700;display:inline-flex}.check-control input{width:1.25rem;height:1.25rem;accent-color:var(--maroon)}.check-control.large{font-size:.95rem}.worksheet-list{gap:1rem;margin-top:2rem;display:grid}.worksheet-card{background:var(--cream);border-left:4px solid var(--maroon);padding:1.3rem}.worksheet-title{align-items:baseline;gap:.8rem;display:flex}.worksheet-title span{color:var(--maroon);font-family:var(--serif);font-weight:700}.worksheet-title h3{margin-bottom:.8rem}.worksheet-columns{flex-wrap:wrap;gap:.35rem;display:flex}.worksheet-columns span{color:var(--muted);border:1px solid var(--line);background:#fff;padding:.25rem .5rem;font-size:.7rem}.completion-row{border:1px solid var(--line);justify-content:space-between;align-items:center;gap:1rem;margin-top:2rem;padding:1.2rem 1.5rem;display:flex}.assignment-section{color:#fff;background:var(--maroon);border:0;padding:clamp(3rem,6vw,5rem)}.assignment-section h2{color:#fff}.assignment-deliverable{color:var(--gold);font-family:var(--serif);font-size:1.35rem;font-weight:600}.assignment-steps{counter-reset:steps;margin:2rem 0;padding:0;list-style:none}.assignment-steps li{counter-increment:steps;border-top:1px solid #fff3;padding:1rem 0 1rem 3rem;position:relative}.assignment-steps li:before{content:counter(steps);width:1.8rem;height:1.8rem;color:var(--maroon);background:var(--gold);border-radius:50%;place-items:center;font-weight:700;display:grid;position:absolute;left:0}.definition-done{color:var(--ink);background:var(--cream);margin:2rem 0;padding:1.3rem}.definition-done span{color:var(--maroon);letter-spacing:.1em;text-transform:uppercase;font-size:.7rem;font-weight:700}.definition-done p{margin:.3rem 0 0}.check-control.inverse{color:#fff}.question-list{padding-left:1.2rem}.question-list li{margin-bottom:1rem}.reflection-card{background:var(--cream);border-color:var(--gold)}.reflection-card p:not(.eyebrow){border-top:1px solid var(--line);font-family:var(--serif);padding-top:1rem;font-size:1.05rem}.ai-section{background:#f2f5f4}.prompt-list{gap:.8rem;display:grid}.copy-prompt{text-align:left;color:var(--ink);cursor:pointer;background:#fff;border:1px solid #cfdad7;grid-template-columns:1fr auto;gap:1rem;padding:1rem;display:grid}.copy-prompt:hover{border-color:var(--teal)}.copy-prompt span{color:var(--teal);text-transform:uppercase;font-size:.72rem;font-weight:700}.privacy-note{color:#5c4c29;border-left:4px solid var(--gold);background:#fff6df;margin-top:2rem;padding:1rem;font-size:.8rem}.week-summary{color:#fff;background:var(--navy);margin:0;padding:3.5rem 2rem}.week-summary span{color:var(--gold);letter-spacing:.1em;text-transform:uppercase;font-size:.7rem;font-weight:700}.week-summary p{font-family:var(--serif);margin:.7rem 0 0;font-size:1.5rem;line-height:1.4}.lesson-pager{grid-template-columns:1fr 1fr;gap:1rem;margin-top:2rem;display:grid}.lesson-pager a{background:var(--cream);flex-direction:column;padding:1rem;text-decoration:none;display:flex}.lesson-pager a.next{text-align:right}.lesson-pager span{color:var(--maroon);text-transform:uppercase;font-size:.7rem;font-weight:700}.lesson-pager strong{color:var(--navy)}.library-intro{border-bottom:1px solid var(--line);grid-template-columns:repeat(3,150px) 1fr;align-items:center;gap:1rem;padding-bottom:4rem;display:grid}.library-intro div{border-left:3px solid var(--maroon);flex-direction:column;padding:1rem;display:flex}.library-intro strong{color:var(--maroon);font-family:var(--serif);font-size:2.4rem;line-height:1}.library-intro span{color:var(--muted);text-transform:uppercase;font-size:.7rem}.library-intro p{color:var(--muted)}.library-section{padding-top:6rem}.resource-grid{grid-template-columns:repeat(4,1fr);gap:1rem;display:grid}.resource-card{border:1px solid var(--line);border-top:3px solid var(--maroon);background:#fff;flex-direction:column;min-height:265px;padding:1.3rem;display:flex}.file-type{color:var(--maroon);text-transform:uppercase;background:#f3e6e4;align-self:start;padding:.2rem .45rem;font-size:.62rem;font-weight:700}.file-type.csv{color:var(--teal);background:#e2efed}.resource-card h3{margin:1.2rem 0 .7rem;font-size:1.2rem}.resource-card p{color:var(--muted);font-size:.82rem}.resource-card .text-link{margin-top:auto}.resource-grid.examples .resource-card{min-height:175px}.download-band{color:#fff;background:var(--navy);grid-template-columns:1fr 1fr;gap:4rem;margin-top:6rem;padding:3rem;display:grid}.download-band h2{color:#fff}.download-band p:last-child{color:#ffffffb3}.download-links{display:grid}.download-links a{border-bottom:1px solid #fff3;justify-content:space-between;align-items:center;padding:.7rem 0;text-decoration:none;display:flex}.glossary-layout{grid-template-columns:180px 1fr;gap:5rem;display:grid}.letter-nav{grid-template-columns:repeat(4,1fr);align-self:start;gap:.35rem;display:grid;position:sticky;top:120px}.letter-nav a{aspect-ratio:1;color:var(--maroon);background:var(--cream);place-items:center;font-weight:700;text-decoration:none;display:grid}.glossary-list section{grid-template-columns:80px 1fr;padding-bottom:4rem;display:grid}.glossary-list section>h2{color:var(--maroon);margin:0;font-size:4rem}.glossary-list dl{margin:0}.glossary-list dl>div{border-top:1px solid var(--line);padding:1.2rem 0}.glossary-list dt{color:var(--navy);font-family:var(--serif);font-size:1.2rem;font-weight:700}.glossary-list dd{color:var(--muted);margin:.35rem 0 0}.source-list>section{border-top:3px solid var(--maroon);grid-template-columns:230px 1fr;gap:3rem;padding:2.5rem 0;display:grid}.source-week span{color:var(--maroon);text-transform:uppercase;font-size:.7rem;font-weight:700}.source-week h2{margin:.5rem 0;font-size:1.7rem}.source-list article{border-bottom:1px solid var(--line);grid-template-columns:1fr auto;gap:1rem;padding:1rem 0;display:grid}.source-list article h3{font-size:1rem;font-family:var(--sans);margin:0 0 .2rem}.source-list article h3 a{text-decoration:none}.source-list article p,.source-list article>span{color:var(--muted);margin:0;font-size:.75rem}.about-layout{grid-template-columns:1.2fr .8fr;gap:6rem;display:grid}.about-main section{border-bottom:1px solid var(--line);margin-bottom:4rem;padding:0 0 4rem}.about-main section>p:last-child{color:var(--muted);font-size:1.05rem}.rhythm-list{margin:2rem 0 0;padding:0;list-style:none}.rhythm-list li{border-top:1px solid var(--line);grid-template-columns:85px 1fr;gap:1rem;padding:1rem 0;display:grid}.rhythm-list li>span{color:var(--maroon);font-weight:700}.rhythm-list p{color:var(--muted);margin:.2rem 0 0}.boundary-card{color:#fff;background:var(--maroon);align-self:start;padding:2rem;position:sticky;top:120px}.boundary-card .eyebrow{color:var(--gold)}.boundary-card h2{color:#fff;font-size:2rem}.boundary-card p{color:#ffffffc4;font-size:.88rem}.boundary-card hr{border:0;border-top:1px solid #ffffff40;margin:2rem 0}.not-found{flex-direction:column;justify-content:center;align-items:start;min-height:70vh;display:flex}.not-found p:not(.eyebrow){color:var(--muted);font-size:1.1rem}.site-footer{color:#fff;background:#11192c;padding:4rem 0 1.5rem}.footer-grid{grid-template-columns:1fr 1fr;gap:4rem;display:grid}.footer-title{font-family:var(--serif);margin-bottom:.5rem;font-size:1.7rem;font-weight:700}.footer-grid>div:first-child>p:last-child{color:#fff9}.footer-links{grid-template-columns:1fr 1fr;gap:.7rem 2rem;display:grid}.footer-links a{border-bottom:1px solid #fff3;padding-bottom:.5rem;text-decoration:none}.footer-bottom{color:#ffffff6b;border-top:1px solid #ffffff26;justify-content:space-between;gap:2rem;margin-top:3rem;padding-top:1rem;font-size:.68rem;display:flex}@media (width<=1050px){.header-inner nav{display:none}.hero-grid{grid-template-columns:1fr .65fr;gap:3rem}.week-grid.detailed{grid-template-columns:1fr}.resource-grid{grid-template-columns:repeat(3,1fr)}.lesson-shell{grid-template-columns:190px minmax(0,1fr);gap:2rem}.video-card{grid-template-columns:1fr}.video-embed{aspect-ratio:16/9;min-height:0}}@media (width<=780px){.shell{width:min(100% - 28px,1180px)}.header-inner{min-height:70px}.brand img{width:175px}.header-inner .button{display:none}.hero-grid{grid-template-columns:1fr;min-height:auto;padding-block:4rem}.hero h1{font-size:3.3rem}.progress-panel{max-width:480px}.stats{grid-template-columns:1fr 1fr}.stats div:nth-child(3){border-left:1px solid #ffffff26}.split-heading,.promise-grid,.download-band,.about-layout{grid-template-columns:1fr;gap:2rem}.week-grid{grid-template-columns:1fr}.resource-callout{flex-direction:column;align-items:start}.curriculum-phase{grid-template-columns:1fr;gap:1rem}.lesson-shell{width:100%;padding-top:0;display:block}.week-sidebar{display:none}.lesson-nav{top:75px}.lesson-section{padding:4rem 1.3rem}.objective-list,.split-content{grid-template-columns:1fr}.library-intro{grid-template-columns:repeat(3,1fr)}.library-intro p{grid-column:1/-1}.resource-grid{grid-template-columns:repeat(2,1fr)}.glossary-layout{grid-template-columns:1fr;gap:2rem}.letter-nav{grid-template-columns:repeat(10,1fr);position:static}.source-list>section{grid-template-columns:1fr;gap:1rem}}@media (width<=520px){h1{font-size:2.8rem}h2{font-size:2rem}.hero h1{font-size:2.8rem}.stats div{padding:1.2rem .8rem}.stats strong{font-size:1.6rem}.lesson-hero{padding:2rem 1.3rem}.lesson-kicker{margin-bottom:2rem}.lesson-hero h1{font-size:2.5rem}.video-copy{padding:1.2rem}.video-actions,.completion-row{flex-direction:column;align-items:start}.assignment-section{padding:3rem 1.3rem}.library-intro{grid-template-columns:1fr}.library-intro p{grid-column:auto}.resource-grid{grid-template-columns:1fr}.download-band{padding:2rem 1.3rem}.glossary-list section{grid-template-columns:45px 1fr;gap:1rem}.glossary-list section>h2{font-size:2.5rem}.letter-nav{grid-template-columns:repeat(7,1fr)}.footer-grid,.footer-links{grid-template-columns:1fr}.footer-bottom{flex-direction:column}}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,:before,:after{transition-duration:.01ms!important}}