:root{--ink:#17211c;--paper:#f3efe4;--gold:#d7a441;--leaf:#2f6f56;--line:rgba(23,33,28,.12);--shadow:0 24px 60px rgba(23,33,28,.12)}*{box-sizing:border-box}body,html{margin:0;padding:0}body{font-family:Avenir Next,Segoe UI,sans-serif;color:var(--ink);background:var(--paper)}a{color:inherit;text-decoration:none}button,input{font:inherit}.shell{width:min(1120px,calc(100% - 32px));margin:0 auto}.nav{justify-content:space-between;padding:22px 0}.brand,.nav{display:flex;align-items:center}.brand{gap:12px;font-weight:700;letter-spacing:.04em}.mark{width:36px;height:36px;border-radius:50%;background:radial-gradient(circle at 35% 35%,#fff4d2,var(--gold) 42%,#8a5a12);box-shadow:inset 0 0 0 6px rgba(23,33,28,.12)}.nav-links{display:flex;gap:18px;align-items:center}.nav-links a{font-size:15px}.btn{display:inline-flex;align-items:center;justify-content:center;border:0;border-radius:999px;padding:12px 18px;cursor:pointer;background:var(--ink);color:#fff}.btn.gold{background:var(--gold);color:#241804}.btn.ghost{background:transparent;color:inherit;border:1px solid var(--line)}.hero{display:grid;grid-template-columns:1.3fr .7fr;grid-gap:28px;gap:28px;padding:18px 0 48px}.kicker{letter-spacing:.16em;text-transform:uppercase;font-size:12px;color:var(--leaf)}h1{font-size:clamp(40px,6vw,72px);line-height:.95;margin:10px 0 16px}.lede{font-size:18px;max-width:46ch;line-height:1.5}.hero-card{background:var(--ink);color:#f6f1e6;border-radius:28px;padding:28px;min-height:280px;display:flex;flex-direction:column;justify-content:space-between}.hero-card strong{font-size:42px}.grid{display:grid;grid-template-columns:repeat(3,1fr);grid-gap:16px;gap:16px}.card{background:#fff;border-radius:22px;padding:20px;box-shadow:var(--shadow);border:1px solid transparent}.card h2,.card h3{margin:8px 0}.meta{color:#5d675f;font-size:14px}.section{padding:10px 0 48px}.lesson{display:flex;justify-content:space-between;gap:12px;padding:12px 0;border-top:1px solid var(--line)}.prose{max-width:68ch;font-size:18px;line-height:1.65}.prose p{margin:0 0 16px}.row{display:flex;gap:10px;flex-wrap:wrap;align-items:center}.form{display:grid;grid-gap:12px;gap:12px;max-width:420px}input{width:100%;padding:12px 14px;border-radius:12px;border:1px solid var(--line);background:#fff}.note{padding:14px 16px}.note,table{background:#fff;border-radius:18px}table{width:100%;border-collapse:collapse;overflow:hidden}td,th{text-align:left;padding:12px 14px;border-bottom:1px solid var(--line)}.done{color:var(--leaf);font-weight:700}footer{padding:28px 0 40px;color:#5d675f}@media (max-width:800px){.grid,.hero{grid-template-columns:1fr}.nav-links{gap:10px}}