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

body {
  height: 100vh;
  background: linear-gradient(135deg, #667eea, #764ba2);
  display: flex;
  justify-content: center;
  align-items: center;
}

.container {
  width: 380px;
  background: white;
  padding: 35px;
  border-radius: 14px;
  box-shadow: 0 20px 35px rgba(0, 0, 0, 0.25);
  animation: fadeIn 0.7s ease;
}

.app-name {
  text-align: center;
  font-size: 34px;
  font-weight: bold;
  color: #667eea;
  letter-spacing: 3px;
}

.tagline {
  text-align: center;
  font-size: 14px;
  color: gray;
  margin-bottom: 25px;
}

h2 {
  text-align: center;
  margin-bottom: 15px;
  color: #333;
}

input {
  width: 100%;
  padding: 12px;
  margin-top: 12px;
  border-radius: 6px;
  border: 1px solid #ccc;
  font-size: 14px;
}

input:focus {
  border-color: #667eea;
  outline: none;
}

button {
  width: 100%;
  padding: 12px;
  margin-top: 20px;
  background: #667eea;
  color: white;
  border: none;
  border-radius: 6px;
  font-size: 16px;
  cursor: pointer;
  transition: 0.3s;
}

button:hover {
  background: #5a67d8;
}

.switch {
  text-align: center;
  margin-top: 18px;
  font-size: 14px;
}

.switch a {
  color: #667eea;
  text-decoration: none;
  font-weight: bold;
}

.error {
  color: red;
  font-size: 12px;
}

.success {
  text-align: center;
}

.small {
  font-size: 14px;
  color: gray;
  margin-top: 10px;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}