body{
  margin:0;
  min-height:100vh;
  background:radial-gradient(circle at 20% 20%, rgba(255,255,255,.08), transparent 22%),radial-gradient(circle at 80% 30%, rgba(255,255,255,.05), transparent 25%),radial-gradient(circle at 50% 80%, rgba(255,255,255,.06), transparent 28%),linear-gradient(135deg, #050505 0%, #000000 45%, #0a0a0a 100%);
  overflow-x:hidden;
  font-family:Arial,sans-serif;
  color:#fff;
}
.auth-page{
  min-height:100vh;
  display:flex;
  align-items:center;
  justify-content:center;
  padding:24px;
}
.auth-card{
  width:100%;
  max-width:460px;
  background:linear-gradient(180deg, rgba(22,22,22,.92), rgba(8,8,8,.88));
  border:1px solid rgba(255,255,255,.10);
  border-radius:28px;
  box-shadow:0 18px 60px rgba(0,0,0,.65);
  overflow:hidden;
}
.auth-card-wide{
  max-width:560px;
}
.auth-card-header{
  padding:28px 30px 18px;
  text-align:center;
  background:linear-gradient(135deg, rgba(164,0,0,.98), rgba(74,0,0,.98));
  border-bottom:1px solid rgba(255,255,255,.08);
}
.auth-card-header h4{
  margin:0;
  font-size:1.6rem;
  color:#fff;
}
.auth-card-header p{
  margin:8px 0 0;
  color:#ffd6d6;
  font-size:.95rem;
}
.auth-card-body{
  padding:28px 30px 22px;
}
.auth-card-footer{
  padding:16px 24px 24px;
  text-align:center;
  border-top:1px solid rgba(255,255,255,.08);
}
.auth-card-footer a{
  color:#ff8b8b;
  text-decoration:none;
  font-weight:600;
}
.auth-label{
  color:#f4f4f4;
  font-weight:600;
  margin-bottom:8px;
}
.auth-input{
  background:rgba(255,255,255,.04);
  border:1px solid rgba(255,255,255,.12);
  color:#fff;
  border-radius:14px;
  padding:12px 14px;
}
.auth-input:focus{
  background:rgba(255,255,255,.06);
  border-color:#ff6b6b;
  box-shadow:0 0 0 .2rem rgba(196,0,0,.18);
  color:#fff;
}
.auth-btn{
  padding:13px 16px;
  border:none;
  border-radius:14px;
  background:linear-gradient(135deg,#c40000,#3a0000);
  color:#fff;
  font-weight:700;
  letter-spacing:.6px;
}
.auth-alert{
  border-radius:14px;
  border:none;
  padding:12px 14px;
}
.security-box{
  background:#1f1f23;
  border:1px solid #2f2f35;
  border-radius:14px;
  padding:14px 16px;
  color:#f4f4f4;
  line-height:1.6;
}
@media (max-width: 480px){
  .auth-card-header,.auth-card-body{
    padding-left:20px;
    padding-right:20px;
  }
  .auth-card{
    border-radius:22px;
  }
}