:root{
  --bg:#f2f2f2;
  --black:#000;
  --gold:gold;
  --yellow:#ffcc00;
  --card:#fff;
  --shadow:rgba(0,0,0,.35);
}
*{box-sizing:border-box}
body{
  margin:0;
  font-family:Arial,sans-serif;
  background:var(--bg) !important; /* mata el azul */
  color:#000;
}
header{
  background:var(--black);
  color:var(--gold);
  padding:16px 0;
  text-align:center;
  box-shadow:0 2px 10px rgba(0,0,0,.5);
}
.topbar{
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:10px;
  max-width:1100px;
  margin:0 auto;
  padding:0 14px;
}
.brandTitle{font-weight:900;font-size:20px}
.brandSub{opacity:.85;font-size:12px}

.login-note{
  background:var(--yellow);
  color:#000;
  text-align:center;
  padding:10px 0;
  font-weight:800;
  border-top:2px solid var(--gold);
  border-bottom:2px solid var(--gold);
  margin:10px 0 0;
}

.login-wrap{
  max-width:420px;
  margin:40px auto 70px;
  background:var(--card);
  border:2px solid var(--gold);
  border-radius:10px;
  overflow:hidden;
  box-shadow:0 4px 20px var(--shadow);
}
.login-inner{padding:24px;text-align:center}
.login-title{font-weight:900;font-size:20px;margin:0 0 14px}

.login-wrap input[type="text"],
.login-wrap input[type="password"]{
  width:100%;
  padding:12px 12px;
  margin:10px 0;
  border-radius:8px;
  border:1px solid #ddd;
  font-size:16px;
}
.login-wrap input:focus{
  outline:none;
  border-color:var(--gold);
  box-shadow:0 0 0 2px rgba(255,215,0,.25);
}
.login-wrap button{
  width:100%;
  padding:12px 14px;
  background:var(--gold);
  color:#000;
  border:0;
  border-radius:8px;
  font-weight:900;
  font-size:16px;
  cursor:pointer;
  transition:background-color .2s ease, transform .2s ease;
}
.login-wrap button:hover{
  background:var(--yellow);
  transform:translateY(-1px);
}
.login-error{
  background:#ffe6e6;
  color:#a10000;
  padding:10px;
  border-radius:8px;
  font-weight:800;
  margin:10px 0 0;
  border:1px solid rgba(161,0,0,.25);
}
footer{
  text-align:center;
  padding:20px 0;
  background:var(--black);
  color:var(--gold);
}