body{margin:0;font:16px/1.65 system-ui,sans-serif;color:#17323d;background:#f4f7f7}*{box-sizing:border-box}a{color:#006f68}header,footer{background:#12313d;color:white;padding:24px}header a,footer a{color:#a8ecda}.container{max-width:1000px;margin:auto;padding:24px}.hero-course{display:grid;grid-template-columns:1.4fr 1fr;gap:28px;align-items:center}.hero-course img{width:100%;border-radius:20px;max-height:350px;object-fit:cover}h1{font-size:clamp(2rem,5vw,3.5rem);line-height:1.12}h2{line-height:1.25}.button{display:inline-block;background:#007e76;color:white;padding:13px 20px;border-radius:10px;text-decoration:none;font-weight:700}.box{background:white;border:1px solid #dce7e5;padding:24px;border-radius:18px;margin:22px 0}.pill{display:inline-block;background:#e7f4f0;padding:6px 12px;border-radius:30px;margin:4px}.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:15px}.price-grid div{background:#e7f4f0;padding:18px;border-radius:12px}.price-grid strong{display:block;font-size:1.25rem}label{display:block;margin:12px 0}input,select{width:100%;font:inherit;padding:12px;border:1px solid #a9c5c0;border-radius:9px;color:#17323d;background:white}button{font:inherit;cursor:pointer;border:0}summary{cursor:pointer;font-weight:700;padding:12px 0}details{border-bottom:1px solid #dce7e5}.small{font-size:.88rem;color:#52676a}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid #b77c14;outline-offset:3px}@media(max-width:640px){.hero-course,.price-grid{grid-template-columns:1fr}.container{padding:18px}.hero-course img{max-height:240px}}