body{margin:0;background:var(--qp-bg);color:var(--qp-ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;line-height:1.75}nav{max-width:1150px;margin:auto;display:flex;align-items:center;gap:28px;padding:22px 28px;border-bottom:1px solid var(--qp-line)}a{color:var(--qp-green);text-underline-offset:4px}nav a{font-size:14px}.brand{display:flex;align-items:center;gap:9px;margin-right:auto;text-decoration:none;font-weight:700;font-size:21px}main{max-width:810px;padding:70px 28px;margin:auto}h1{font-size:clamp(34px,5vw,56px);letter-spacing:-.045em;line-height:1.1;margin:25px 0}h2{font-size:26px;line-height:1.25;letter-spacing:-.025em;margin-top:42px}.lead{font-size:20px;color:var(--qp-muted)}header{padding-bottom:45px;border-bottom:1px solid var(--qp-line);margin-bottom:45px}small{color:var(--qp-muted)}article p,article li{font-size:17px}.article-demo{margin:45px 0;padding:28px;background:var(--qp-surface);border:1px solid var(--qp-line);border-radius:12px}.article-demo h2{margin-top:0}button{border:0;background:var(--qp-green);color:var(--qp-surface);padding:14px 22px;border-radius:7px;min-height:44px}input{display:block;width:100%;padding:14px;border:1px solid var(--qp-line);border-radius:7px;margin:10px 0 15px;background:var(--qp-bg);color:var(--qp-ink)}footer{max-width:810px;margin:auto;padding:35px 28px;font-size:13px;border-top:1px solid var(--qp-line)}.skip-link{position:absolute;top:-100px}.skip-link:focus{top:5px;left:5px;background:white;padding:10px}@media(max-width:430px){nav{gap:16px;padding:15px}nav>a:nth-child(2){display:none}nav a{font-size:12px}.brand{font-size:18px}main{padding:40px 22px}.article-demo{padding:20px}article p,article li{font-size:16px}}