body {
  margin:0;
  font-family: 'Poppins', sans-serif;
  background:#F8FAFC;   /* ubah hitam ke putih/off-white */
  color:#1F2937;         /* teks utama biru gelap/abu gelap */
}

.container {
  width:400px;
  margin:80px auto;
}

.card {
  background:#FFFFFF;     /* card putih */
  border:1px solid #E5E7EB; /* abu muda */
  border-radius:18px;
  padding:30px;
  box-shadow:0 30px 60px rgba(0,0,0,.1); /* shadow lebih soft */
}

input, textarea {
  width:100%;
  padding:14px;
  margin:10px 0;
  background:#F1F5F9;     /* input abu sangat terang */
  border:1px solid #CBD5E1;
  color:#1F2937;
  border-radius:10px;
}

.btn {
  background:linear-gradient(135deg,#1D4ED8,#2563EB); /* biru gradient */
  color:white;
  padding:14px;
  border:none;
  border-radius:999px;
  width:100%;
  font-weight:600;
  cursor:pointer;
}

a { color:#8f5215; text-decoration:none; } /* aksen kuning */
h2,h3 { text-align:center; }