.premium-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}.premium-card{border:1px solid var(--line);border-radius:16px;background:#fff;padding:27px}.premium-card h3{margin:12px 0}.premium-card ul{padding-left:20px}.premium-card .note{margin-bottom:0}.badge{display:inline-block;border-radius:50px;background:#e0f7ee;color:#066552;padding:5px 11px;font-size:.9rem;font-weight:800}.planned{background:#edf2f5;color:#536b78}.price-panel{background:var(--navy);color:#fff;padding:32px;border-radius:18px;margin:30px 0}.price-panel p{color:#d3e4eb}.price{font-size:3.4rem;font-weight:800;line-height:1.2}.price-panel .note{color:#c2d7e0}.button[disabled]{background:#d3dfe5;color:#3b5868;cursor:not-allowed}.outline{border:1px solid #5b7f8f;background:transparent;color:#e4f3f7}.review{border-left:4px solid var(--amber);padding:16px 20px;background:#fff4df;margin-bottom:28px}.chart-scroll{overflow-x:auto}.chart-scroll svg{min-width:580px}.exercise-box{margin:24px 0;border:1px solid var(--line);border-radius:14px;padding:22px;background:#fff}.exercise-box summary{cursor:pointer;font-weight:800;color:var(--green)}.exercise-box details{border-top:1px solid var(--line);padding-top:16px;margin-top:18px}.exercise-box details p{margin-top:14px}.response{width:100%;min-height:90px;padding:12px;border:1px solid #aac1cc;border-radius:8px;font:inherit;resize:vertical}.field select{width:100%;padding:11px;border:1px solid #aac1cc;border-radius:8px;font:inherit;background:#fff;color:var(--ink)}.checklist label{display:flex;gap:12px;align-items:flex-start;margin:12px 0}.checklist input{width:20px;height:20px;flex-shrink:0;margin-top:4px;accent-color:var(--green)}.quiz-form fieldset{border:1px solid var(--line);background:#fff;border-radius:12px;padding:20px;margin:18px 0}.quiz-form legend{font-weight:800;padding:0 7px}.quiz-form label{display:flex;gap:10px;margin:10px 0}.quiz-form input{accent-color:var(--green);flex-shrink:0}.quiz-feedback{padding:14px;border-radius:8px;background:var(--pale);margin-top:15px}.download-links{display:flex;gap:16px;flex-wrap:wrap}.download-links a{font-weight:800}.reading{padding-block:55px 80px}.reading h2{margin-top:42px}.sample-card{padding:24px;border:1px solid var(--line);border-radius:15px;background:white}.stats{display:flex;gap:22px;flex-wrap:wrap}.stats strong{display:block;font-size:1.8rem}.stats span{font-size:1rem;color:#c7dce4}.check-result{font-weight:800}.chapter-nav{display:flex;gap:16px;justify-content:space-between;margin-top:30px}.chapter-nav a{font-weight:800}.course-link-secondary{font-weight:700;color:var(--green);text-decoration:underline;text-underline-offset:4px}
@media(max-width:650px){.premium-grid{grid-template-columns:1fr}.premium-card,.price-panel{padding:22px}.price{font-size:2.9rem}}
@media print{.site-header,.toc,.hero-actions,footer,button,.review{display:none}.hero{background:white;color:#102b3d;padding:20px 0}.hero-lead,.pill{color:#102b3d}.layout{display:block}.chapter{break-inside:auto}.card,.exercise-box,.chart{break-inside:avoid}details{display:block}details>*{display:block!important}.quiz-form input{appearance:auto}.wrap{width:100%}}