:root{color-scheme:dark;--bg:#101e18;--panel:#1a2c22;--ink:#e5ece4;--muted:#b3c3b7;--line:#3a5141;--accent:#b6d697}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:24px}body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.7 system-ui,-apple-system,"Segoe UI",Arial,sans-serif}a{color:inherit;text-underline-offset:4px}a:hover{color:#cfe6b9}a:focus-visible,summary:focus-visible{outline:3px solid var(--accent);outline-offset:5px}.site-header,main,.site-footer{width:min(1160px,calc(100% - 48px));margin-inline:auto}.site-header{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:23px 0;border-bottom:1px solid var(--line)}.brand img{display:block;width:166px;height:auto}nav,.actions{display:flex;align-items:center;gap:22px;flex-wrap:wrap}nav a{text-decoration:none;font-weight:600}.button{display:inline-flex;align-items:center;justify-content:center;background:var(--accent);color:#17251b;border:1px solid var(--accent);padding:13px 21px;border-radius:11px;text-decoration:none;font-weight:700;min-height:46px}.button:hover{background:#c5dfad;color:#17251b}.button.secondary{background:transparent;color:var(--ink);border-color:#57745e}.button.small{padding:9px 16px}.hero{display:grid;grid-template-columns:1.4fr 1fr;gap:64px;align-items:center;padding:78px 0 64px}.eyebrow{font-size:12px;letter-spacing:.12em;font-weight:700;color:var(--accent)}h1,h2,h3{line-height:1.25;text-wrap:balance}h1{font-size:clamp(36px,5vw,65px);letter-spacing:-.04em;margin:20px 0}h2{font-size:30px;margin:12px 0 24px}h3{font-size:21px;margin:20px 0 12px}.lead{font-size:19px;color:#c9d6cb;max-width:680px}.actions{margin:28px 0 18px;gap:12px}.muted{color:var(--muted);font-size:14px}.hero-note{padding:35px;background:linear-gradient(135deg,#213d2d,#1b2c23);border:1px solid #48634d;border-radius:24px}.hero-note p[lang]{font-size:31px;line-height:1.45;font-weight:600;margin:24px 0 10px}.hero-note span:last-child{color:var(--muted)}hr{border:0;border-top:1px solid var(--line);margin:28px 0}.section{padding:40px 0}.grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.card{border:1px solid var(--line);background:var(--panel);border-radius:16px;padding:24px;min-width:0}.card p{color:var(--muted);margin-bottom:0}.number{color:var(--accent);font-size:13px}.badge{display:inline-block;font-size:12px;font-weight:700;padding:5px 10px;border:1px solid #5d7c50;border-radius:7px;color:#c3dea9;background:#263d27}.badge.a2{background:#203d38;color:#b2d8cd;border-color:#497b6f}.badge.b1{background:#293b4c;color:#bdd5ed;border-color:#537799}.lesson{display:flex;flex-direction:column;align-items:flex-start}.lesson h3 a{text-decoration:none}.text-link{font-weight:700;margin-top:auto;padding-top:24px;color:var(--accent)}.steps{margin-top:28px;border-block:1px solid var(--line)}li{padding:6px 0}details{border:1px solid var(--line);border-radius:10px;padding:15px 20px;margin:12px 0;background:var(--panel)}summary{cursor:pointer;font-weight:600;min-height:24px}details p{color:var(--muted)}.site-footer{margin-top:50px;padding:30px 0 45px;border-top:1px solid var(--line);font-size:14px;color:var(--muted)}.site-footer>a:first-child{font-size:20px;font-weight:700;color:var(--ink)}.reading{max-width:820px;padding-top:38px}.reading h1{font-size:clamp(30px,4vw,44px);margin:22px 0}.reading article>.badge{margin-top:30px}.reading h2{font-size:25px;margin-top:36px}.reading blockquote{margin:20px 0;border-left:3px solid var(--accent);background:var(--panel);padding:24px;font-size:19px;line-height:1.9}.table-wrap{overflow-x:auto}table{width:100%;border-collapse:collapse}th,td{text-align:left;vertical-align:top;border-bottom:1px solid var(--line);padding:14px 12px}th{color:var(--accent)}.quiz{border-block:1px solid var(--line);margin-top:32px;padding-bottom:15px}.skip{position:fixed;top:-100px;left:16px;background:var(--accent);color:#14231a;padding:12px;z-index:10}.skip:focus{top:10px}@media(max-width:850px){.hero{gap:25px;padding:48px 0}.grid{grid-template-columns:repeat(2,minmax(0,1fr))}.hero-note{padding:24px}}@media(max-width:600px){.site-header,main,.site-footer{width:calc(100% - 32px)}.site-header{align-items:flex-start;flex-wrap:wrap;padding:16px 0;gap:16px}nav{width:100%;gap:18px;justify-content:space-between;font-size:14px}.hero{grid-template-columns:1fr;padding:36px 0 22px;gap:26px}h1{font-size:42px}h2{font-size:27px}.hero-note p[lang]{font-size:25px}.grid{grid-template-columns:1fr}.section{padding:28px 0}.card{padding:22px}.lead{font-size:17px}.actions .button{width:100%}.reading{padding-top:25px}th,td{padding:12px 8px;font-size:15px}.reading blockquote{padding:18px;font-size:17px;overflow-wrap:anywhere}.site-footer{margin-top:28px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}@media print{body{background:white;color:black}.site-header,.actions,.site-footer{display:none}details{display:block}main{width:100%}}
/* Public library and lesson exercises, V35 */
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