/* Pro lessons (law firms + business). Scoped under .pro-lesson. */
.pro-lesson{--ink:#1d1d1f;--paper:#faf8f4;--line:#e6e2da;--muted:#6b6b70;--card:#fff;--fire:linear-gradient(90deg,#e10600,#ff6a00 55%,#ffb000);--red:#d7261e;--ok:#2f7d55;font-family:Inter,system-ui,sans-serif;background:var(--paper);color:var(--ink);line-height:1.55}
.pro-lesson *{box-sizing:border-box}
.pro-lesson a{color:inherit}
.pro-lesson .wrap{max-width:1180px;margin:0 auto;padding:0 40px}
.pro-lesson .pro-hero{display:grid;grid-template-columns:1fr 1.1fr;gap:56px;align-items:center;padding:64px 40px 40px}
.pro-lesson .eyebrow{font-size:12px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--red)}
.pro-lesson h1{font-size:48px;line-height:1.08;letter-spacing:-.025em;margin:14px 0 18px;font-weight:700}
.pro-lesson h2{font-size:30px;letter-spacing:-.02em;line-height:1.15;margin:8px 0 14px}
.pro-lesson h3{font-size:15px;margin:0 0 8px}
.pro-lesson .lede{font-size:18px;color:#3a3a3e;max-width:34em}
.pro-lesson .rule{height:3px;width:56px;background:var(--fire);border-radius:2px;margin:22px 0}
.pro-lesson .fig{border-radius:14px;overflow:hidden;background:#fff;border:1px solid var(--line)}
.pro-lesson .fig img{width:100%;display:block}
.pro-lesson .meta{display:flex;gap:22px;font-size:14px;color:var(--muted);margin-top:22px}
.pro-lesson .meta b{color:var(--ink)}
.pro-lesson .steps{display:flex;gap:6px;overflow-x:auto;padding:10px 0 24px;border-bottom:1px solid var(--line);scrollbar-width:none}
.pro-lesson .step{flex:1 0 auto;min-width:120px;border:1px solid var(--line);background:var(--card);border-radius:10px;padding:10px 12px;font:inherit;font-size:13px;text-align:left;cursor:pointer;color:var(--muted)}
.pro-lesson .step span{display:block;font-size:11px;font-weight:600;letter-spacing:.1em}
.pro-lesson .step b{color:var(--ink);font-weight:600}
.pro-lesson .step.on{border-color:var(--ink);box-shadow:inset 0 -3px 0 0 #ff6a00}
.pro-lesson .step.done span{color:var(--ok)}
.pro-lesson .lesson{display:grid;grid-template-columns:1.05fr 1fr;gap:48px;padding:40px 0 24px}
.pro-lesson .scenario{font-size:16px;color:#3a3a3e}
.pro-lesson .who{display:flex;gap:10px;align-items:center;font-size:13px;color:var(--muted);margin:14px 0}
.pro-lesson .who i{font-style:normal;background:#efece6;border-radius:99px;padding:4px 10px;color:var(--ink);font-weight:500}
.pro-lesson .doc{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:26px 28px;box-shadow:0 1px 0 rgba(0,0,0,.02),0 18px 40px -28px rgba(0,0,0,.25)}
.pro-lesson .doc .dh{display:flex;justify-content:space-between;font-size:12px;color:var(--muted);border-bottom:1px solid var(--line);padding-bottom:12px;margin-bottom:14px;letter-spacing:.04em;text-transform:uppercase}
.pro-lesson .doc .dh b{color:var(--ink)}
.pro-lesson .prompt{font-size:14px;font-weight:600;margin:0 0 10px}
.pro-lesson .s{display:block;width:100%;text-align:left;font:inherit;font-size:15px;line-height:1.55;background:none;border:1px solid transparent;border-radius:8px;padding:8px 10px;margin:2px 0;cursor:pointer;color:var(--ink)}
.pro-lesson .s:hover{background:#f6f3ee}
.pro-lesson .s.pick{border-color:var(--ink);background:#f6f3ee}
.pro-lesson .s.bad{border-color:var(--red);background:#fff1ec}
.pro-lesson .s.bad::after{content:"Planted error";display:inline-block;margin-left:8px;font-size:11px;font-weight:600;color:#fff;background:var(--red);border-radius:4px;padding:1px 6px;vertical-align:2px}
.pro-lesson .s.wrong{opacity:.55;text-decoration:line-through}
.pro-lesson .btn{display:inline-flex;align-items:center;gap:8px;font:inherit;font-weight:600;font-size:14px;border-radius:99px;padding:11px 20px;border:1px solid var(--ink);cursor:pointer;background:var(--ink);color:#fff}
.pro-lesson .btn.ghost{background:none;color:var(--ink)}
.pro-lesson .btn[disabled]{opacity:.35;cursor:default}
.pro-lesson .actions{display:flex;gap:10px;margin-top:16px;flex-wrap:wrap}
.pro-lesson .explain{display:none;margin-top:18px;border-left:3px solid #ff6a00;padding:4px 0 4px 18px}
.pro-lesson .revealed .explain{display:block}
.pro-lesson .verdict{font-weight:600;font-size:15px}
.pro-lesson .verdict.ok{color:var(--ok)}
.pro-lesson .verdict.no{color:var(--red)}
.pro-lesson .take{display:none;margin:8px 0 56px;background:var(--ink);color:#f2efe9;border-radius:14px;padding:26px 30px;grid-template-columns:auto 1fr auto;gap:24px;align-items:center}
.pro-lesson .revealed+.take,.pro-lesson .take.show{display:grid}
.pro-lesson .take .k{font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:#ffb000;font-weight:600}
.pro-lesson .take p{margin:4px 0 0;font-size:17px}
.pro-lesson .take ul{margin:8px 0 0;padding-left:18px;color:#cfcac2;font-size:14px}
.pro-lesson .take .btn{background:#faf8f4;color:var(--ink);border-color:#faf8f4}
.pro-lesson .issue-tag{display:inline-flex;gap:8px;align-items:center;font-size:13px;font-weight:600}
.pro-lesson .issue-tag em{font-style:normal;width:26px;height:26px;border-radius:50%;display:grid;place-items:center;color:#fff;background:var(--fire);font-size:12px}
.pro-lesson{padding-bottom:8px}
@media(max-width:820px){.pro-lesson .pro-hero{padding:40px 20px 24px}.pro-lesson .pro-hero,.pro-lesson .lesson{grid-template-columns:1fr;gap:28px}.pro-lesson h1{font-size:34px}.pro-lesson .wrap{padding:0 20px}.pro-lesson .take{grid-template-columns:1fr}}
/* Dark-background rule (Oct 13, 2026): the dark takeaway panel uses white or #ffc400 only */
.pro-lesson .take{color:#fff}.pro-lesson .take .k{color:#ffc400}.pro-lesson .take ul,.pro-lesson .take p,.pro-lesson .take li{color:#fff}
.pro-lesson .take :focus-visible{outline:3px solid #ffc400;outline-offset:3px}
.pro-lesson .btn:focus-visible{outline:3px solid #e10600;outline-offset:3px}