.lessons-page{max-width:1280px}.lessons-hero{grid-template-columns:minmax(0,1.65fr) minmax(0,.75fr);align-items:center;gap:56px;padding:38px 0 35px;display:grid}.lessons-hero h1{font:400 clamp(40px,5vw,66px)/1.08 var(--serif);letter-spacing:-1.6px;margin:20px 0 24px}.lessons-hero h1 em{color:var(--accent)}.lessons-hero .lesson-lead{color:var(--ink);font-size:21px;line-height:1.55}.lessons-hero p:not(.eyebrow){margin-bottom:18px}.lessons-hero>div>p:not(.eyebrow){max-width:720px}.lesson-hero-note{border:1px solid #cbd6df;border-top:3px solid var(--accent);background:#e9eff3;border-radius:4px;padding:28px}.lesson-hero-note .eyebrow{letter-spacing:1.2px;color:#304e6b;font-size:12px;line-height:1.6}.lesson-hero-note .lesson-hero-count{font:400 64px/1.1 var(--serif);color:#24384c;margin:18px 0}.lesson-hero-count span{font:14px/1.6 var(--sans);color:#425568;margin-top:8px;display:block}.lesson-hero-note .primary-button{align-items:center;gap:12px;font-size:14px;display:inline-flex}.lesson-principles{border-top:1px solid var(--line);border-bottom:1px solid var(--line);grid-template-columns:1fr 1fr;gap:28px;margin-bottom:42px;padding:24px 0;display:grid}.lesson-principles p{color:var(--muted);font-size:14px}.lesson-principles strong{color:var(--ink);margin-bottom:4px;font-size:16px;display:block}.lesson-finder{scroll-margin-top:115px}.lesson-finder-title{justify-content:space-between;align-items:center;gap:20px;display:flex}.lesson-finder-title h2{margin-bottom:20px}.lesson-course-options{flex-wrap:wrap;gap:10px;margin:6px 0 20px;display:flex}.lesson-course-options button{font:600 14px/1.5 var(--sans);color:#304e6b;cursor:pointer;background:#fffdf9;border:1px solid #b6c5cf;border-radius:4px;min-height:46px;padding:11px 16px}.lesson-course-options button span{color:#304e6b;background:#e9eff3;border-radius:3px;min-width:24px;margin-left:8px;padding:1px 5px;font-size:12px;display:inline-block}.lesson-course-options button[aria-pressed=true]{color:#fff;background:#304e6b;border-color:#304e6b}.lesson-filter-panel{background:#f0f2f3;border:1px solid #d4dce2;border-radius:5px;padding:23px}.lesson-filter-panel label{color:#354a5e;min-width:0;font-size:14px;font-weight:600;display:block}.lesson-filter-panel input,.lesson-filter-panel select{width:100%;min-height:46px;font:400 16px/1.5 var(--sans);color:var(--ink);background:#fff;border:1px solid #b7c5ce;border-radius:3px;min-width:0;margin-top:7px;padding:11px 12px;display:block}.lesson-filter-selects{grid-template-columns:1fr .8fr 1.4fr;gap:16px;margin-top:17px;display:grid}.lesson-results-status{color:var(--muted);justify-content:space-between;align-items:center;gap:18px;padding:16px 0;font-size:14px;display:flex}.lesson-clear{color:var(--accent);font:600 14px var(--sans);text-underline-offset:4px;cursor:pointer;background:0 0;border:0;flex-shrink:0;min-height:44px;text-decoration:underline}.lesson-course-section{padding:28px 0 42px}.lesson-course-section+.lesson-course-section{border-top:1px solid var(--line)}.lesson-course-heading{justify-content:space-between;align-items:center;gap:25px;margin-bottom:24px;display:flex}.lessons-page .lesson-course-heading h2{margin:8px 0 10px;font-size:32px;line-height:1.2}.lesson-course-heading p:not(.eyebrow){color:var(--muted);max-width:650px;font-size:15px}.lesson-course-heading>.text-link{flex-shrink:0;font-size:14px}.lesson-card-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;display:grid}.lesson-card{background:#fffdf9;border:1px solid #d4dce2;border-top:3px solid #859caf;border-radius:4px;flex-direction:column;min-width:0;padding:23px;display:flex}.lesson-course-us-history .lesson-card{border-top-color:#7c9079}.lesson-card-top{color:#4b6276;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:8px;margin-bottom:16px;font-size:12px;font-weight:600;display:flex}.lesson-format{color:#304e6b;background:#eaf0f3;border-radius:3px;padding:3px 7px}.lessons-page .lesson-card h3{font:400 25px/1.2 var(--serif);overflow-wrap:anywhere;margin:0 0 13px}.lesson-card h3 a:hover{text-underline-offset:4px;text-decoration:underline}.lesson-card .lesson-unit{color:#596978;margin-bottom:12px;font-size:12px;line-height:1.5}.lesson-card .lesson-description{color:#495865;font-size:15px;line-height:1.7}.lesson-card .lesson-cross-course,.lesson-card .lesson-teacher-note{color:#455543;background:#f0f3ee;border-radius:3px;margin-top:15px;padding:11px 12px;font-size:13px;line-height:1.6}.lesson-card .lesson-teacher-note{color:#62533e;background:#f3f0ea}.lesson-card-bottom{margin-top:auto;padding-top:23px}.lesson-origin{letter-spacing:.2px;color:#61707a;margin-bottom:10px;font-size:11px;display:block}.lesson-card-bottom>.text-link{min-height:40px;font-size:14px}.lesson-card .offline-review{border-top:1px solid var(--line);margin-top:12px;padding-top:12px;font-size:12px}.lesson-card .offline-review p{margin-top:6px;font-size:12px;line-height:1.6}.lesson-card .offline-review a{text-underline-offset:3px;text-decoration:underline}.lesson-show-more{color:#304e6b;cursor:pointer;font:600 14px/1.5 var(--sans);background:0 0;border:1px solid #9eafbd;border-radius:3px;min-height:46px;margin:23px auto 0;padding:13px 20px;display:block}.lesson-show-more:hover{background:#e9eff3}.lesson-empty{text-align:center;border:1px dashed #bac8d2;border-radius:5px;margin:20px 0 45px;padding:45px 24px}.lesson-other-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;margin-top:28px;display:grid}.lesson-other-grid>a{border:1px solid var(--line);border-radius:4px;padding:23px}.lesson-other-grid>a:hover{background:#e9eff3}.lesson-other-grid>a>span{letter-spacing:1px;color:#61707a;font-size:11px;font-weight:600}.lessons-page .lesson-other-grid h3{margin:11px 0;font-size:24px}.lesson-other-grid p{color:var(--muted);font-size:14px}.lesson-contact{font-size:15px}.lesson-contact a{text-underline-offset:4px;text-decoration:underline}.lessons-page :is(button,input,select,a):focus-visible{outline-offset:4px;outline:3px solid #a45d41}.lessons-page .text-link{white-space:normal}.lesson-course-heading>.text-link{max-width:240px}@media (max-width:1050px){.lesson-card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.lessons-hero{grid-template-columns:1.45fr 1fr;gap:30px}.lessons-hero h1{font-size:48px}.lesson-filter-selects{grid-template-columns:1fr 1fr}.lesson-filter-selects label:last-child{grid-column:1/-1}}@media (max-width:700px){.lessons-hero{grid-template-columns:1fr;gap:25px;padding-top:25px}.lessons-hero h1{letter-spacing:-1px;font-size:42px}.lessons-hero .lesson-lead{font-size:19px}.lesson-hero-note{padding:22px}.lesson-hero-note .lesson-hero-count{font-size:44px}.lesson-principles{grid-template-columns:1fr;gap:18px;margin-bottom:30px}.lesson-finder-title,.lesson-course-heading{flex-direction:column;align-items:flex-start;gap:8px}.lesson-finder-title{margin-bottom:18px}.lesson-finder-title h2{margin-bottom:4px}.lesson-course-options{flex-direction:column;align-items:stretch}.lesson-course-options button{text-align:left}.lesson-course-options button span{float:right}.lesson-filter-panel{padding:17px}.lesson-filter-selects{grid-template-columns:1fr}.lesson-filter-selects label:last-child{grid-column:auto}.lesson-card-grid,.lesson-other-grid{grid-template-columns:1fr}.lesson-results-status{align-items:flex-start}.lesson-card{padding:22px}.lessons-page .lesson-course-heading h2{font-size:29px}.lesson-course-heading>.text-link{max-width:none}}