*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:#101922;color:#f3f5ec;font:17px/1.65 system-ui,sans-serif}a{color:inherit}header,main,footer{max-width:1180px;margin:auto;padding:24px}header{display:flex;justify-content:space-between;align-items:center;gap:20px;border-bottom:1px solid #34434e}header a{text-decoration:none}nav{display:flex;gap:20px;flex-wrap:wrap;font-size:15px}.brand{font-size:24px;font-weight:800}.brand span{color:#d3fa78}.hero{padding:58px 0 45px;max-width:930px}h1{font-size:clamp(40px,6vw,70px);letter-spacing:-2px;line-height:1.09;margin:20px 0 24px}h2{line-height:1.25;font-size:30px}h3{font-size:24px;line-height:1.3}p{color:#c2cdd2}.eyebrow{color:#d3fa78;font-size:14px;letter-spacing:2px;font-weight:700}.pill{display:inline-block;border:1px solid #50634e;border-radius:30px;padding:5px 14px;color:#d3fa78;font-size:14px}.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.course{overflow:hidden;border:1px solid #3b4d59;border-radius:22px;background:#1d2a35;display:flex;flex-direction:column}.art{height:130px;padding:25px;color:#101922;display:flex;align-items:center;justify-content:space-between;font-size:42px;font-weight:800}.art span{font-size:14px;letter-spacing:2px}.body{padding:24px;display:flex;flex:1;flex-direction:column}.body h3{margin-top:0}.body p{flex:1}.price{font-size:30px;font-weight:800;color:#f3f5ec}.small{font-size:14px;color:#aabdc7}.button{display:inline-block;background:#d3fa78;color:#101922;padding:12px 20px;border-radius:30px;font-weight:700;text-decoration:none}.note{background:#263a32;padding:22px;border-radius:18px;margin:25px 0}.panel{padding:28px;background:#1d2a35;border-radius:22px;margin:25px 0}video{width:100%;border-radius:16px;background:#101922}details{padding:18px 0;border-bottom:1px solid #40505b}summary{cursor:pointer;font-weight:700}footer{margin-top:60px;border-top:1px solid #34434e;font-size:14px;color:#aabdc7}a:focus-visible,summary:focus-visible{outline:3px solid #9ccbff;outline-offset:5px}@media(max-width:900px){.grid{grid-template-columns:repeat(2,1fr)}}@media(max-width:600px){.grid{grid-template-columns:1fr}header{display:block}nav{margin-top:15px}main{padding:18px}}.cover{width:100%;aspect-ratio:16/9;object-fit:cover}.levels{display:flex;flex-wrap:wrap;gap:8px}.levels a{font-size:14px}.lesson{padding:24px 0;border-bottom:1px solid #40505b}pre{overflow:auto;padding:18px;background:#18212a;white-space:pre-wrap;overflow-wrap:anywhere}code{font-size:14px}fieldset{margin:20px 0;border:1px solid #40505b;border-radius:12px;padding:16px}label{display:block;padding:5px}button{font:inherit;cursor:pointer}.back{font-size:14px}.muted{font-size:14px;color:#aabdc7}.filter{font:inherit;padding:14px;border:1px solid #50634e;border-radius:12px;background:#1d2a35;color:white;width:100%;margin:20px 0}.hero-grid{display:grid;grid-template-columns:1.1fr 1fr;gap:30px;align-items:center}.hero-grid h1{font-size:clamp(36px,5vw,60px)}.sticky-cta{margin:24px 0}.catalog-group{margin-top:50px}img{max-width:100%}@media(max-width:760px){.hero-grid{grid-template-columns:1fr}}