.app-heading{display:flex;align-items:center;gap:18px;flex-wrap:wrap;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Helvetica,Arial,sans-serif}.app-heading h1{margin:0;font-size:20px;min-width:270px;letter-spacing:normal}.app-heading a{color:#0969da;text-decoration:none}.app-heading a:hover{text-decoration:underline}.app-nav{display:flex;gap:12px;font-size:14px}.app-nav [aria-current=page]{color:#24292f;font-weight:600;border-bottom:2px solid #0969da}@media(max-width:700px){.header{flex-wrap:wrap;gap:12px}}