:root{color-scheme:light;--ocean:#004e64;--sea:#007f8b;--sun:#f7b955;--ink:#102a32;--muted:#526970}*{box-sizing:border-box}body{margin:0;background:linear-gradient(#e9f7f8,#fff 36rem);color:var(--ink);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;line-height:1.55}header,main,footer{width:min(100% - 2rem,68rem);margin-inline:auto}header{display:flex;justify-content:space-between;align-items:center;padding:1.25rem 0;color:var(--muted)}.brand{color:var(--ocean);font-family:Georgia,serif;font-size:1.35rem;font-weight:800;text-decoration:none}.hero{max-width:48rem;padding:4.5rem 0 2rem}.eyebrow{color:var(--sea);font-weight:800;letter-spacing:.08em;text-transform:uppercase}h1{font-family:Georgia,serif;font-size:clamp(2.35rem,7vw,4.8rem);letter-spacing:-.035em;line-height:1.04;margin:.35rem 0 1rem}.intro{color:var(--muted);font-size:clamp(1.05rem,2vw,1.25rem);max-width:42rem}.result{background:#fff;border:1px solid #cfe2e4;border-radius:1.5rem;box-shadow:0 1rem 3rem rgba(0,78,100,.1);padding:clamp(1.4rem,4vw,2.25rem)}.label,.status{color:var(--sea);font-weight:800;text-transform:uppercase;letter-spacing:.06em}.window{font-size:clamp(2rem,7vw,3.8rem);font-weight:900;letter-spacing:-.035em;margin:.2rem 0 1.5rem}.result h2{font-size:1.1rem;margin:0}.factors,.updated,.unavailable{color:var(--muted)}.actions{display:flex;gap:.8rem;flex-wrap:wrap;padding:1.5rem 0}.actions a{border-radius:999px;padding:.85rem 1.25rem;font-weight:800;text-decoration:none}.primary{background:var(--ocean);color:#fff}.secondary{border:1px solid #9dbfc4;color:var(--ocean);background:#fff}.limitations{color:var(--muted);font-size:.9rem;max-width:48rem}footer{display:flex;gap:1rem;border-top:1px solid #dce9eb;margin-top:4rem;padding:2rem 0 3rem}footer a{color:var(--ocean)}a:focus-visible{outline:3px solid var(--sun);outline-offset:3px}@media(min-width:48rem){header{padding-top:2rem}.hero{padding-top:7rem}}@media(prefers-reduced-motion:reduce){*,*::before,*::after{scroll-behavior:auto!important;transition:none!important}}