.courses-page{--courses-primary:#2563eb;--courses-primary-soft:#dbeafe;--courses-bg-soft:#f8fafc;--courses-border:#e5e7eb;--courses-text-muted:#475569;--courses-container:1200px;--courses-header-offset:120px;color:#0f172a;background:#fff;font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Ubuntu,Cantarell,Helvetica Neue,Arial,sans-serif;line-height:1.75}.courses-page *,.courses-page :before,.courses-page :after{box-sizing:border-box}.courses-hero{color:#fff;background:linear-gradient(135deg,#020617,#1e40af);padding:5rem 1.25rem}.courses-hero-content{text-align:center;max-width:900px;margin:auto}.courses-hero-content h1{margin-bottom:1rem;font-size:clamp(2.2rem,4vw,3rem)}.courses-hero-content p{opacity:.95;max-width:720px;margin:auto}.courses-btn-primary{background:var(--courses-primary);color:#fff;border-radius:8px;margin-top:2rem;padding:.9rem 2.4rem;font-weight:600;text-decoration:none;display:inline-flex}.courses-wrapper{max-width:var(--courses-container);grid-template-columns:280px 1fr;gap:3.5rem;margin:auto;padding:4.5rem 1.25rem;display:grid}.courses-sidebar{top:var(--courses-header-offset);background:var(--courses-bg-soft);border:1px solid var(--courses-border);border-radius:14px;padding:1.6rem;position:sticky}.courses-sidebar h3{text-transform:uppercase;letter-spacing:.05em;color:var(--courses-text-muted);margin-bottom:1rem;font-size:.85rem}.courses-sidebar nav{flex-direction:column;gap:.5rem;display:flex}.courses-sidebar nav a{color:#0f172a;border-left:3px solid #0000;border-radius:8px;padding:.7rem .9rem;font-size:.92rem;text-decoration:none;transition:background .2s,color .2s;display:block}.courses-sidebar nav a:hover{background:var(--courses-primary-soft);color:var(--courses-primary);border-left-color:var(--courses-primary)}.courses-content{max-width:860px}.courses-section{margin-bottom:4.5rem}.courses-card{border:1px solid var(--courses-border);border-radius:18px;margin-bottom:4.5rem;padding:2.5rem}.courses-card p{color:var(--courses-text-muted)}.courses-card ul{margin:1.2rem 0;padding-left:1.25rem}.courses-card ul li{margin-bottom:.6rem}.courses-section,.courses-card{scroll-margin-top:var(--courses-header-offset)}.courses-cta{color:#fff;text-align:center;background:linear-gradient(135deg,#020617,#1e3a8a);padding:5.5rem 1.25rem}.courses-cta h2{margin-bottom:.8rem;font-size:clamp(2rem,3.5vw,2.5rem)}.courses-cta p{opacity:.95;max-width:640px;margin:auto}@media (max-width:900px){.courses-wrapper{grid-template-columns:1fr}.courses-sidebar{margin-bottom:2.5rem;position:static}}