body{
  font-family: Arial;
  background: linear-gradient(135deg,#0f172a,#134e4a);
  color:white;
  margin:0;
}

.container{
  padding:20px;
  max-width:900px;
  margin:auto;
}

.card{
  background: rgba(255,255,255,0.1);
  padding:20px;
  border-radius:15px;
  text-align:center;
  margin-top:100px;
}

input{
  display:block;
  width:100%;
  margin:10px 0;
  padding:12px;
  border-radius:10px;
  border:none;
}

button{
  padding:10px 15px;
  border:none;
  border-radius:10px;
  background:#22c55e;
  color:white;
  cursor:pointer;
}

button:hover{
  background:#16a34a;
}

.error{
  color:red;
}

.hidden{
  display:none;
}

.topbar{
  display:flex;
  justify-content:space-between;
  align-items:center;
  margin-bottom:20px;
}

/* 🔴 link box */
.link-box{
  background: rgba(255,255,255,0.1);
  padding:15px;
  border-radius:12px;
  margin:10px 0;
}

.link-box a{
  display:block;
  color:white;
  text-decoration:none;
  padding:8px;
  background:#2563eb;
  margin-top:5px;
  border-radius:8px;
}

.link-box a:hover{
  background:#1d4ed8;
}