:root{color-scheme:light;font-family:Segoe UI,system-ui,sans-serif;color:#182f36;background:#f6f7f3}*{box-sizing:border-box}body{margin:0}main{max-width:820px;margin:0 auto;padding:56px 24px 80px}.brand{font-weight:700;letter-spacing:.05em;color:#26786e;text-decoration:none}h1{font-size:clamp(2rem,5vw,3rem);line-height:1.15;margin:36px 0 20px}h2{font-size:1.25rem;margin-top:32px}p,li{font-size:1.05rem;line-height:1.7}a{color:#21685f;text-underline-offset:3px}.intro{font-size:1.2rem;color:#425960}.card{background:#fff;border:1px solid #dce3dd;border-radius:16px;padding:24px;margin:28px 0}footer{border-top:1px solid #dce3dd;margin-top:40px;padding-top:20px;font-size:.9rem;color:#51666d}a:focus-visible{outline:3px solid #26786e;outline-offset:5px}