.portal{min-height:100vh;background:linear-gradient(135deg,#e9efe9,#fbfaf6);padding:clamp(1.5rem,5vw,6rem)}.portal>header,.portal>section{max-width:1200px;margin:auto}.portal>header{display:flex;justify-content:space-between;align-items:center;padding-bottom:clamp(4rem,8vw,8rem)}.portal>header nav{display:flex;gap:1.2rem;font-weight:700}.portal h1{font-size:clamp(3rem,6vw,6rem)}.portal .lead{color:#617168;max-width:540px;margin-bottom:3rem}.auth-help{color:#617168;font-size:.9rem;margin-top:1.2rem}@media(max-width:720px){.portal>header{padding-bottom:4rem}.portal h1{font-size:3.4rem}}