@font-face{font-family:system-ui;src:local(system-ui)}
:root{--forest:#173f35;--deep:#0d2c26;--cream:#fffaf0;--paper:#fffdf8;--lime:#d7ff72;--clay:#b85f43;--lavender:#ded5f4;--ink:#17201d;--muted:#59635f;--line:#d8d8cf;--radius:22px;--shadow:0 18px 50px rgba(23,63,53,.12)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--cream);color:var(--ink);font-family:ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;line-height:1.6}a{color:inherit}.shell{width:min(1180px,calc(100% - 36px));margin-inline:auto}.hero{padding:clamp(64px,9vw,120px) 0;background:linear-gradient(120deg,var(--deep),var(--forest));color:var(--paper)}.hero__grid{display:grid;grid-template-columns:minmax(0,1.3fr) minmax(250px,.55fr);gap:clamp(36px,7vw,90px);align-items:center}.eyebrow{margin:0 0 12px;color:var(--clay);font-size:.78rem;font-weight:900;letter-spacing:.14em;text-transform:uppercase}.hero .eyebrow{color:var(--lime)}h1,h2,h3{font-family:Georgia,serif;font-weight:400;line-height:1.02}h1{max-width:850px;margin:0;font-size:clamp(3rem,7vw,6.4rem);letter-spacing:-.055em}.lede{max-width:760px;margin:26px 0;font-size:clamp(1.05rem,2vw,1.35rem);color:rgba(255,253,248,.82)}.actions,.lesson-actions,.completion{display:flex;flex-wrap:wrap;gap:12px;align-items:center}.button{display:inline-flex;justify-content:center;align-items:center;min-height:48px;padding:12px 20px;border:2px solid var(--lime);border-radius:999px;background:var(--lime);color:var(--deep);font-weight:850;text-decoration:none;cursor:pointer}.button--secondary{background:transparent;color:var(--paper)}.button--small{min-height:42px;padding:9px 16px;font-size:.9rem}.hero__card{display:grid;grid-template-columns:auto 1fr;gap:12px 18px;padding:30px;border:1px solid rgba(255,255,255,.3);border-radius:var(--radius);background:rgba(255,255,255,.08)}.hero__card strong{color:var(--lime);font-size:1.35rem}.hero__card span{align-self:center}.layout{display:grid;grid-template-columns:minmax(300px,.72fr) minmax(0,1.28fr);gap:34px;padding-block:60px}.course,.lesson-view{min-width:0}.section-heading{display:flex;justify-content:space-between;gap:16px;align-items:end;margin-bottom:18px}.section-heading h2,.lesson-view h2{margin:0;font-size:clamp(2rem,4vw,3.6rem);letter-spacing:-.035em}.progress{margin:0;padding:8px 12px;border-radius:999px;background:var(--lavender);font-size:.82rem;font-weight:800;white-space:nowrap}.lesson-list{display:grid;gap:9px}.lesson-card{display:grid;grid-template-columns:44px 1fr 28px;gap:12px;align-items:center;padding:14px;border:1px solid var(--line);border-radius:16px;background:var(--paper);text-decoration:none;transition:.15s ease}.lesson-card:hover,.lesson-card[aria-current]{border-color:var(--forest);box-shadow:var(--shadow);transform:translateY(-1px)}.lesson-card__number{display:grid;width:40px;height:40px;place-items:center;border-radius:50%;background:var(--forest);color:var(--paper);font-weight:900}.lesson-card small,.lesson-card strong{display:block}.lesson-card small{color:var(--muted);font-size:.75rem;text-transform:uppercase}.lesson-card strong{line-height:1.25}.lesson-card__check{font-weight:900;color:var(--forest)}.lesson-card.is-complete .lesson-card__number{background:var(--lime);color:var(--deep)}.lesson-view{position:sticky;top:20px;align-self:start;padding:clamp(24px,4vw,48px);border:1px solid var(--line);border-radius:var(--radius);background:var(--paper);box-shadow:var(--shadow)}.outcome{padding:18px;border-left:5px solid var(--lime);background:#f3f8df}.lesson-actions{justify-content:space-between;margin:20px 0}.text-link{font-weight:800;color:var(--forest)}.reading{font-size:1.08rem}.activity{margin-top:26px;padding:24px;border-radius:18px;background:var(--lavender)}.activity--discussion{background:var(--deep);color:var(--paper)}.activity h3{margin:0;font-size:1.7rem}.activity p:last-child{margin-bottom:0}.sources{margin-top:28px}.sources h3{font-size:1.35rem}.sources a{color:var(--forest);font-weight:700}.completion{justify-content:space-between;margin-top:30px;padding-top:24px;border-top:1px solid var(--line)}.completion label{font-weight:850}.completion input{width:20px;height:20px;vertical-align:middle;accent-color:var(--forest)}footer{padding:30px 0;background:var(--deep);color:var(--paper)}.footer__grid{display:flex;justify-content:space-between;gap:24px}.footer__grid p{margin:0}
@media(max-width:840px){.hero__grid,.layout{grid-template-columns:1fr}.hero__card{max-width:480px}.lesson-view{position:static}.layout{padding-top:38px}}
@media(max-width:520px){.shell{width:min(100% - 24px,1180px)}.hero{padding:54px 0}.hero__card{grid-template-columns:1fr 1fr}.section-heading,.footer__grid{align-items:start;flex-direction:column}.lesson-card{grid-template-columns:40px 1fr 20px}.lesson-view{padding:24px 18px}.completion{align-items:flex-start;flex-direction:column}}