:root{
  --bg:#000;
  --card:#0b1220;
  --border:#111827;
  --gold:#facc15;
  --blue:#38bdf8;
  --text:#e5e7eb;
  --muted:#9ca3af;
}
*{box-sizing:border-box}
html,body{
  margin:0;
  width:100%;
  min-height:100vh;
  overflow-x:hidden;
}
body{
  display:flex;
  align-items:center;
  justify-content:center;
  background:var(--bg);
  font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial;
  color:var(--text);
  padding:14px;
}
.card{
  width:100%;
  max-width:380px;
  background:var(--card);
  border:1px solid var(--border);
  border-radius:18px;
  padding:22px;
  box-shadow:0 10px 30px rgba(0,0,0,.6);
}
.brand{
  text-align:center;
  font-weight:900;
  font-size:22px;
  color:var(--gold);
}
.tagline{
  text-align:center;
  font-size:12px;
  color:var(--muted);
  margin:6px 0 18px;
}
input{
  width:100%;
  padding:12px;
  margin-bottom:12px;
  border-radius:12px;
  border:1px solid var(--border);
  background:#020617;
  color:var(--text);
  font-size:14px;
}
input:focus{outline:none;border-color:var(--gold)}
button{
  width:100%;
  padding:12px;
  border:none;
  border-radius:12px;
  background:var(--gold);
  color:#000;
  font-weight:900;
  font-size:15px;
  cursor:pointer;
}
.msg{
  margin-top:10px;
  font-size:13px;
  text-align:center;
}
.msg.error{color:#f87171}
.msg.success{color:#22c55e}
.link{
  margin-top:14px;
  text-align:center;
  font-size:17px;
}
.link a{color:var(--blue);text-decoration:none}
@media(max-width:360px){
  .card{padding:16px;border-radius:14px}
  .brand{font-size:20px}
  button{font-size:14px}
}