*{box-sizing:border-box;margin:0;padding:0}
body{font-family:system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;background:linear-gradient(135deg,#0f172a,#1e3a8a);color:#0f172a;min-height:100vh;display:flex;flex-direction:column}
main{flex:1;display:flex;align-items:center;justify-content:center;padding:24px}
.card{background:#fff;border-radius:16px;box-shadow:0 20px 50px rgba(0,0,0,.3);padding:40px 32px;max-width:420px;width:100%;text-align:center}
.logo{font-size:32px;font-weight:800;color:#1e3a8a;letter-spacing:-1px}
.logo span{color:#f59e0b}
.sub{color:#64748b;font-size:14px;margin:4px 0 24px}
p.desc{color:#334155;font-size:15px;line-height:1.5;margin-bottom:28px}
.gbtn{display:inline-flex;align-items:center;justify-content:center;gap:12px;width:100%;padding:12px 16px;border:1px solid #dadce0;border-radius:8px;background:#fff;color:#3c4043;font-size:15px;font-weight:500;text-decoration:none;transition:background .2s,box-shadow .2s}
.gbtn:hover{background:#f8fafc;box-shadow:0 1px 3px rgba(0,0,0,.15)}
.gbtn:focus-visible{outline:3px solid #2563eb;outline-offset:2px}
.act{display:block;margin-top:20px;font-size:14px;color:#2563eb;text-decoration:none}
.act:hover{text-decoration:underline}
footer{text-align:center;padding:20px;font-size:13px;color:#cbd5e1}
footer a{color:#e2e8f0;margin:0 8px}