* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Segoe UI', sans-serif;
}

body {
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  background: linear-gradient(-45deg, #0f0c29, #302b63, #24243e);
  background-size: 400% 400%;
  animation: bg 10s ease infinite;
  color: white;
}

@keyframes bg {
  0% {background-position: 0% 50%;}
  50% {background-position: 100% 50%;}
  100% {background-position: 0% 50%;}
}

.card {
  background: rgba(255,255,255,0.08);
  backdrop-filter: blur(15px);
  border-radius: 20px;
  padding: 40px;
  text-align: center;
  width: 380px;
  box-shadow: 0 10px 40px rgba(0,0,0,0.4);
}

h1 {
  font-size: 40px;
  margin-bottom: 10px;
  letter-spacing: 2px;
}

p {
  font-size: 14px;
  opacity: 0.8;
  margin-bottom: 25px;
}

input {
  width: 100%;
  padding: 12px;
  border-radius: 30px;
  border: none;
  outline: none;
  margin-bottom: 15px;
  text-align: center;
}

button {
  width: 100%;
  padding: 12px;
  border: none;
  border-radius: 30px;
  background: linear-gradient(45deg, #ff512f, #dd2476);
  color: white;
  font-size: 16px;
  cursor: pointer;
  transition: 0.3s;
}

button:hover {
  transform: scale(1.05);
}

#msg {
  margin-top: 15px;
  font-size: 14px;
  color: #00ffb3;
  display: none;
}

.loader {
  width: 40px;
  height: 40px;
  border: 4px solid rgba(255,255,255,0.2);
  border-top: 4px solid #fff;
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin: 10px auto;
  display: none;
}

@keyframes spin {
  0% {transform: rotate(0deg);}
  100% {transform: rotate(360deg);}
}