:root{--cyan:#0DBEF3;--cyan-dark:#0a9ecc;--cyan-light:#e0f7fe;--green:#289E54;--green-light:#e8f5e9;--dark:#0D1117;--gray:#64748b;--light:#F8FAFB;--border:#e2e8f0;--white:#ffffff}*,:after,:before{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;color:var(--dark);background:#fff;line-height:1.6;-webkit-font-smoothing:antialiased}img,svg{display:block;max-width:100%}a{color:inherit}.container{max-width:1200px;margin:0 auto;padding:0 24px}.section-label{font-size:12px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--cyan);margin-bottom:10px;display:block}.section-title{font-size:clamp(28px,4vw,42px);font-weight:900;color:var(--dark);letter-spacing:-.5px;line-height:1.15;margin-bottom:16px}.section-title span{color:var(--cyan)}.btn-primary{display:inline-flex;align-items:center;gap:8px;background:var(--cyan);color:#fff;font-weight:700;font-size:15px;padding:14px 28px;border-radius:50px;text-decoration:none;border:none;cursor:pointer;transition:background .2s,transform .15s,box-shadow .2s;box-shadow:0 4px 14px rgba(13,190,243,.35);white-space:nowrap}.btn-primary:hover{background:var(--cyan-dark);transform:translateY(-1px);box-shadow:0 6px 20px rgba(13,190,243,.45)}.btn-outline{display:inline-flex;align-items:center;gap:8px;background:transparent;color:var(--cyan);font-weight:700;font-size:15px;padding:13px 28px;border-radius:50px;text-decoration:none;border:2px solid var(--cyan);cursor:pointer;transition:all .2s;white-space:nowrap}.btn-outline:hover{background:var(--cyan);color:#fff}.btn-green{display:inline-flex;align-items:center;gap:8px;background:var(--green);color:#fff;font-weight:700;font-size:15px;padding:14px 28px;border-radius:50px;text-decoration:none;border:none;cursor:pointer;transition:all .2s;box-shadow:0 4px 14px rgba(40,158,84,.3);white-space:nowrap}.btn-green:hover{background:#1f7d42;transform:translateY(-1px)}.nav-link{font-size:14px;font-weight:600;color:var(--dark);text-decoration:none;padding:8px 12px;border-radius:8px;transition:color .2s,background .2s}.nav-link:hover{color:var(--cyan);background:var(--cyan-light)}.dropdown-item{display:block;padding:9px 14px;font-size:14px;font-weight:500;color:var(--dark);text-decoration:none;border-radius:8px;transition:background .15s,color .15s}.dropdown-item:hover{background:var(--cyan-light);color:var(--cyan)}.two-col-grid{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center}.three-col-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}.four-col-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}.courses-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:28px}.card{background:#fff;border:1px solid var(--border);border-radius:20px;padding:32px 28px;transition:box-shadow .2s,transform .2s}.card:hover{box-shadow:0 8px 32px rgba(0,0,0,.1);transform:translateY(-2px)}.badge{display:inline-block;font-size:11px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;padding:4px 12px;border-radius:50px}.badge-cyan{background:var(--cyan-light);color:var(--cyan-dark)}.badge-green{background:var(--green-light);color:var(--green)}.badge-free{background:#fef9c3;color:#854d0e}.divider{width:48px;height:4px;background:var(--cyan);border-radius:2px;margin-bottom:24px}.show-mobile-only{display:none!important}.show-desktop-only{display:inline-flex!important}@media (max-width:900px){.two-col-grid{grid-template-columns:1fr;gap:40px}.three-col-grid{grid-template-columns:1fr;gap:20px}.four-col-grid{grid-template-columns:1fr 1fr;gap:16px}.courses-grid{grid-template-columns:1fr;gap:20px}.courses-two-grid{grid-template-columns:1fr!important}.show-mobile-only{display:inline-flex!important}.show-desktop-only{display:none!important}}@media (max-width:600px){.four-col-grid{grid-template-columns:1fr 1fr}}