body{
  margin:0;
  font-family:Arial, Helvetica, sans-serif;
  background:linear-gradient(135deg,#111,#000);
  min-height:100vh;
  display:flex;
  align-items:center;
  justify-content:center;
  color:#fff;
}

.card{
  background:#111;
  width:100%;
  max-width:420px;
  padding:35px;
  border-radius:18px;
  box-shadow:0 20px 60px rgba(0,0,0,.7);
}

h1{
  font-size:28px;
  margin-bottom:10px;
}

p{
  color:#aaa;
  font-size:14px;
}

label{
  font-size:13px;
  margin-top:15px;
  display:block;
}

input{
  width:100%;
  padding:14px;
  margin-top:6px;
  border-radius:10px;
  border:none;
  background:#222;
  color:#fff;
  font-size:15px;
}

input:focus{
  outline:2px solid #00ff99;
}

button{
  width:100%;
  margin-top:25px;
  padding:14px;
  background:linear-gradient(90deg,#00ff99,#00cc66);
  border:none;
  border-radius:12px;
  font-size:16px;
  font-weight:bold;
  cursor:pointer;
}

button:hover{
  opacity:.9;
}

.error{
  background:#ff2f2f;
  color:#fff;
  padding:10px;
  border-radius:8px;
  margin-top:15px;
  font-size:14px;
}

.success{
  background:#00cc66;
  color:#000;
  padding:10px;
  border-radius:8px;
  margin-top:15px;
  font-size:14px;
}

.footer{
  text-align:center;
  margin-top:25px;
  font-size:13px;
  color:#888;
}

.badge{
  display:inline-block;
  background:#00ff99;
  color:#000;
  padding:4px 10px;
  border-radius:999px;
  font-size:12px;
  margin-bottom:10px;
  font-weight:bold;
}

.link{
  color:#00ff99;
  font-weight:bold;
  text-decoration:none;
}

.center{
  text-align:center;
  margin-top:22px;
  font-size:14px;
  color:#aaa;
}

.input,
input{
  width:100%;
  padding:14px 18px;   /* kiri-kanan dibuat seimbang */
  border-radius:10px;
  border:none;
  background:#222;
  color:#fff;
  font-size:15px;
  box-sizing:border-box;
}