* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

#login-form {
  background: white;
  border-radius: 12px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  padding: 40px;
  width: 100%;
  max-width: 400px;
  text-align: center;
}

h1 {
  color: #333;
  margin-bottom: 30px;
  font-size: 24px;
  font-weight: 600;
}

input[type="email"],
input[type="text"] {
  width: 100%;
  padding: 15px;
  border: 2px solid #e1e5e9;
  border-radius: 8px;
  font-size: 16px;
  margin-bottom: 20px;
  transition: border-color 0.3s ease;
}

input[type="email"]:focus,
input[type="text"]:focus {
  outline: none;
  border-color: #667eea;
}

button {
  width: 100%;
  padding: 15px;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  border: none;
  border-radius: 8px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

button:hover {
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(102, 126, 234, 0.3);
}

button:active {
  transform: translateY(0);
}

.hidden {
  display: none;
}

#message {
  margin-top: 20px;
  padding: 12px;
  border-radius: 6px;
  font-weight: 500;
  min-height: 20px;
}

#message.success {
  background-color: #d4edda;
  color: #155724;
  border: 1px solid #c3e6cb;
}

#message.error {
  background-color: #f8d7da;
  color: #721c24;
  border: 1px solid #f5c6cb;
}

#step-email,
#step-code {
  animation: fadeIn 0.3s ease-in;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}