:root{--bg:#f6f4ef;--panel:#fff;--ink:#1e272e;--muted:#687078;--accent:#76512d;--border:#ddd5c9;--good:#2f7d4a;--warn:#a36a00;--bad:#a33a31}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;line-height:1.55}.site-header{display:flex;justify-content:space-between;align-items:center;padding:1rem clamp(1rem,5vw,4rem);background:#211c17;color:#fff}.site-header a{color:#fff;text-decoration:none;margin-left:1rem}.brand{font-weight:800;font-size:1.15rem}.container{width:min(1120px,92%);margin:2rem auto 4rem}.hero,.card,.lesson-panel,.auth-card{background:var(--panel);border:1px solid var(--border);border-radius:14px;padding:1.4rem;box-shadow:0 8px 24px rgba(32,25,18,.05)}.hero{padding:2rem;margin-bottom:1.5rem}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:1rem}.lesson-card a{text-decoration:none;color:inherit}.lesson-card h3{margin:.25rem 0}.eyebrow{font-size:.78rem;text-transform:uppercase;letter-spacing:.1em;color:var(--accent);font-weight:800}.muted{color:var(--muted)}.progress{height:10px;background:#e8e2d8;border-radius:99px;overflow:hidden}.progress span{display:block;height:100%;background:var(--accent)}button,.button{display:inline-block;border:0;border-radius:9px;padding:.72rem 1rem;background:var(--accent);color:#fff;text-decoration:none;font-weight:700;cursor:pointer}.button.secondary,button.secondary{background:#5d656b}.button.ghost{background:transparent;color:var(--accent);border:1px solid var(--accent)}input,textarea{width:100%;padding:.75rem;border:1px solid var(--border);border-radius:8px;font:inherit}label{display:block;margin:.8rem 0 .3rem;font-weight:700}.auth-card{max-width:520px;margin:3rem auto}.notice{padding:.8rem 1rem;border-radius:8px;background:#f4e9d7}.error{background:#fde7e4;color:#7c241d}.metrics{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:1rem;margin:1rem 0}.metric{background:var(--panel);border:1px solid var(--border);border-radius:12px;padding:1rem}.metric strong{display:block;font-size:1.75rem}.topic-row{display:grid;grid-template-columns:minmax(140px,2fr) 3fr 90px;gap:1rem;align-items:center;padding:.75rem 0;border-bottom:1px solid var(--border)}.lesson-layout{display:grid;grid-template-columns:minmax(0,3fr) minmax(260px,1fr);gap:1.3rem}.lesson-content h2{margin-top:2rem}.quiz-option{display:block;padding:.75rem;border:1px solid var(--border);border-radius:8px;margin:.55rem 0;cursor:pointer}.quiz-option input{width:auto;margin-right:.5rem}.quiz-result{margin-top:1rem;padding:1rem;border-radius:8px}.correct{background:#e6f4ea;color:#215d35}.incorrect{background:#fde7e4;color:#7c241d}.sticky{position:sticky;top:1rem}.site-footer{text-align:center;padding:2rem;color:var(--muted)}@media(max-width:800px){.lesson-layout{grid-template-columns:1fr}.sticky{position:static}.topic-row{grid-template-columns:1fr}.site-header{align-items:flex-start;gap:1rem;flex-direction:column}.site-header a{margin:0 1rem 0 0}}
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.legal-term{border-bottom:2px dotted var(--accent);cursor:help;font-weight:650;text-decoration:none}.legal-term:focus{outline:3px solid rgba(118,81,45,.25);outline-offset:2px;border-radius:3px}.vocab-popover{position:absolute;z-index:9999;background:#211c17;color:#fff;border:1px solid #4b4036;border-radius:12px;padding:1rem;box-shadow:0 16px 40px rgba(0,0,0,.28);font-size:.94rem}.vocab-popover strong{font-size:1.05rem}.vocab-popover p{margin:.45rem 0}.vocab-popover .plain-definition{color:#f1dfc4}.vocab-meta{display:flex;align-items:center;justify-content:space-between;gap:.75rem;margin-top:.7rem}.vocab-popover a{color:#fff}.ucc-badge{display:inline-block;background:#e9dcc9;color:#4c321c;border:1px solid #cdb695;border-radius:999px;padding:.2rem .55rem;font-size:.78rem;font-weight:800}.glossary-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:1rem}.glossary-entry h2{font-size:1.15rem;margin:.1rem 0 .6rem}.plain-definition{color:#5c5147}.ucc-reference{border-left-color:#43697d;background:#edf5f8}.purchase-protection{border:1px solid #d2b98f;background:#fffaf0;border-radius:12px;padding:1.2rem;margin:1.5rem 0}.clause-sample{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;background:#27231f;color:#fff;padding:1rem;border-radius:8px;white-space:normal}.warning-box{background:#fff0ee;border:1px solid #e6b7b1;border-left:5px solid var(--bad);padding:1rem;border-radius:9px;margin:1rem 0}

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