:root{--ink:#16253d;--paper:#fafafa;--rule:#d8dee9}*{box-sizing:border-box}body{background:var(--paper);color:var(--ink);margin:0;font:15px/1.6 system-ui,-apple-system,Segoe UI,sans-serif}.banner{background:var(--ink);color:#fff;padding:20px max(20px,50vw - 730px)}.banner p{margin:0 0 8px}.banner p:last-child{margin-bottom:0}.banner a{color:#b9d9ff}.screen{border:1px solid var(--rule);background:#fff;border-radius:10px;max-width:420px;margin:12vh auto;padding:32px}.screen h1{margin:0 0 8px;font-size:20px}.screen p{color:#4a5768}button,input{font:inherit}button{background:var(--ink);color:#fff;cursor:pointer;border:0;border-radius:6px;padding:10px 16px}button:disabled{opacity:.5;cursor:default}input{border:1px solid var(--rule);border-radius:6px;width:100%;margin-bottom:12px;padding:10px 12px}.divider{border-top:1px solid var(--rule);margin:24px 0}.error{color:#8b1a1a}