body {
  margin: 0;
  padding: 0;
  font-family: 'Poppins', sans-serif;
  background: linear-gradient(135deg, #0e0e0e, #1a1a1a);
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  color: #fff;
}

.form-container {
  background: linear-gradient(145deg, #2e2e2e, #1a1a1a);
  padding: 40px 50px;
  border-radius: 20px;
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.8);
  border: 3px solid #ffd700;
  width: 100%;
  max-width: 450px;
}

.form-container h2 {
  margin-bottom: 30px;
  text-align: center;
  color: #ffd700;
  font-family: 'Merriweather', serif;
  font-size: 2rem;
  text-shadow: 1px 1px 3px rgba(0,0,0,0.5);
}

form label {
  display: block;
  margin-bottom: 8px;
  font-weight: 500;
  color: #ffd700;
}

form input[type="text"],
form input[type="email"],
form input[type="password"] {
  width: 100%;
  padding: 12px 15px;
  border: none;
  border-radius: 8px;
  background: #333;
  color: #fff;
  margin-bottom: 20px;
  font-size: 1rem;
  box-shadow: inset 0 3px 6px rgba(0,0,0,0.5);
  transition: box-shadow 0.3s;
}

form input:focus {
  box-shadow: inset 0 3px 10px rgba(0,0,0,0.7);
  outline: none;
}

/* Placeholder */
input::placeholder {
  color: rgba(255, 255, 255, 0.5);
  font-style: italic;
  transition: opacity 0.3s ease;
}
input:focus::placeholder {
  opacity: 0;
}

button[type="submit"] {
  width: 100%;
  padding: 14px 0;
  background: linear-gradient(135deg, #ffd700, #b8860b);
  color: #111;
  font-weight: 700;
  border: none;
  border-radius: 50px;
  font-size: 1.1rem;
  cursor: pointer;
  box-shadow: 0 8px 20px rgba(0,0,0,0.7);
  transition: all 0.4s ease;
}

button[type="submit"]:hover {
  background: linear-gradient(135deg, #ffcc00, #e5b300);
  transform: translateY(-4px);
}

.kembali {
  margin-top: 25px;
  text-align: center;
}

.kembali a {
  color: #ffd700;
  text-decoration: none;
  font-weight: 500;
  transition: color 0.3s;
}

.kembali a:hover {
  color: #ffffff;
}