*{box-sizing:border-box}body{margin:0;font-family:Arial,Helvetica,sans-serif;color:#111827;background:#fff;line-height:1.6}.container{width:min(1120px,92%);margin:auto}.topbar{background:#0d6efd;color:white;text-align:center;padding:8px;font-size:14px}.nav{border-bottom:1px solid #e5e7eb;background:#fff;position:sticky;top:0;z-index:10}.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:16px 0}.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:21px;color:#111827;text-decoration:none}.brand-mark{width:28px;height:28px;border-radius:8px;background:#36a9ff;display:inline-block}.nav-links{display:flex;gap:20px}.nav-links a,.footer a{color:#374151;text-decoration:none}.btn{display:inline-block;padding:12px 18px;border-radius:10px;text-decoration:none;font-weight:700}.btn-primary{background:#1479e8;color:#fff}.btn-secondary{background:#e9f5ff;color:#075fb9}.hero,.page-hero{padding:70px 0;background:linear-gradient(180deg,#f4faff,#fff)}.hero h1,.page-hero h1{font-size:clamp(38px,6vw,66px);line-height:1.03;max-width:900px;margin:10px 0 18px}.page-hero h1{font-size:clamp(34px,5vw,54px)}.hero p,.page-hero p{font-size:20px;max-width:760px;color:#4b5563}.eyebrow{color:#0876df;font-weight:800;text-transform:uppercase;letter-spacing:.08em}.section{padding:64px 0}.grid,.course-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.card{border:1px solid #e5e7eb;border-radius:18px;padding:24px;background:#fff;box-shadow:0 8px 30px rgba(0,0,0,.04)}.featured{border:2px solid #36a9ff}.badge{background:#e9f5ff;color:#075fb9;padding:5px 9px;border-radius:999px;font-size:12px;font-weight:800}.price{font-size:36px;font-weight:900}.subprice,.micro{color:#6b7280}.course-cover{font-weight:800;color:#0876df;margin-bottom:8px}.course-body{padding-top:6px}.content-grid{display:grid;grid-template-columns:2fr 1fr;gap:32px}.sticky{position:sticky;top:100px;height:max-content}.checks li{margin:8px 0}.note{background:#f4faff;border-left:4px solid #36a9ff;padding:16px;margin-top:24px}.table-like>div{display:flex;justify-content:space-between;padding:12px 0;border-bottom:1px solid #e5e7eb}.banner{background:#0e2239;color:#fff;border-radius:22px;padding:30px;display:flex;align-items:center;justify-content:space-between;gap:24px}.footer{background:#f8fafc;padding:48px 0 24px}.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:30px}.footer-grid a{display:block;margin:7px 0}.footer-bottom{margin-top:24px;color:#6b7280;font-size:14px}.breadcrumb{color:#6b7280;font-size:14px}@media(max-width:800px){.nav-links{display:none}.grid,.course-grid,.content-grid,.footer-grid{grid-template-columns:1fr}.banner{display:block}.banner .btn{margin-top:12px}.sticky{position:static}.hero,.page-hero{padding:48px 0}}