:root { --ink:#1f2933; --mut:#6b7a8c; --acc:#2f6fd0; --bg:#f7f9fc; }
* { box-sizing:border-box; }
body { margin:0; min-height:100vh; display:flex; align-items:center; justify-content:center;
       font:16px/1.65 -apple-system,Segoe UI,Roboto,Arial,sans-serif; color:var(--ink); background:var(--bg); }
main { max-width:640px; padding:48px 28px; text-align:center; }
.logo { font-weight:600; letter-spacing:.4px; color:var(--mut); font-size:15px; margin-bottom:26px; }
h1 { font-size:26px; margin:0 0 14px; }
p { margin:0 0 12px; color:#39485a; }
.bar { height:4px; width:120px; margin:26px auto 0; border-radius:3px;
       background:linear-gradient(90deg, var(--acc), #9fc3f5); }
small { display:block; margin-top:26px; color:var(--mut); font-size:13px; }