:root {
  --bg-dark: #0B0B0F;
  --card-bg: rgba(20,0,40,0.95);
  --pink: #FF4ECF;
  --purple: #8F5AFF;
  --white: #FFFFFF;
  --glow: 0 0 20px rgba(255,78,207,0.8);
}

body {
  margin: 0;
  font-family: 'Poppins', sans-serif;
  background: radial-gradient(circle at top, #1c0030, #000);
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
}

.container {
  width: 100%;
  max-width: 400px;
  background: var(--card-bg);
  padding: 40px 30px;
  border-radius: 25px;
  box-shadow: var(--glow);
  text-align: center;
  animation: fadeIn 1s ease;
}

h3 {
  font-size: 28px;
  color: var(--pink);
  text-shadow: 0 0 5px var(--pink), 0 0 15px var(--purple);
  margin-bottom: 15px;
}

.mb-3 input {
  width: 100%;
  padding: 14px;
  border-radius: 12px;
  border: 2px solid #fff;
  background: transparent;
  color: var(--white);
  font-size: 15px;
  outline: none;
  transition: 0.3s;
}

.mb-3 input:focus {
  border-color: var(--pink);
  box-shadow: 0 0 10px var(--pink);
}

.mb-3 label {
  color: #ffb0ff;
}

button {
  width: 100%;
  padding: 14px 0;
  font-size: 16px;
  font-weight: 600;
  border: none;
  border-radius: 50px;
  background: linear-gradient(45deg, var(--pink), var(--purple));
  color: var(--white);
  cursor: pointer;
  transition: 0.3s;
  box-shadow: var(--glow);
}

button:hover {
  transform: translateY(-3px);
  box-shadow: 0 0 25px var(--pink), 0 0 35px var(--purple);
}

a {
  color: var(--pink);
  display: inline-block;
  margin-top: 10px;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

@keyframes fadeIn {
  from {opacity: 0; transform: translateY(30px);}
  to {opacity: 1; transform: translateY(0);}
}

@media (max-width: 480px) {
  .container {
    padding: 30px 20px;
  }

  h3 {
    font-size: 24px;
  }

  button {
    font-size: 15px;
  }
}