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

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background-color: #f5f7fa;
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.login-container {
  width: 100%;
  max-width: 450px;
  padding: 20px;
}

.login-card {
  background-color: white;
  border-radius: 8px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
  overflow: hidden;
}

.login-header {
  background-color: #0066b3;
  color: white;
  padding: 30px 20px;
  text-align: center;
}

.logo {
  height: 40px;
  margin-bottom: 20px;
}

.login-header h1 {
  font-size: 24px;
  margin-bottom: 10px;
}

.login-header p {
  font-size: 14px;
  opacity: 0.9;
}

.login-content {
  padding: 30px 20px;
}

.login-action {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-top: 20px;
}

.login-button {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  background-color: #0078d4;
  color: white;
  border: none;
  border-radius: 4px;
  padding: 12px 24px;
  font-size: 16px;
  font-weight: 500;
  cursor: pointer;
  width: 100%;
  max-width: 280px;
  transition: background-color 0.2s ease;
}

.login-button:hover {
  background-color: #006cbe;
}

.ms-logo {
  margin-right: 8px;
}

.login-footer {
  padding: 15px 20px;
  text-align: center;
  border-top: 1px solid #eaeaea;
  color: #666;
  font-size: 12px;
}

.error-message {
  background-color: #fdeded;
  border-left: 4px solid #d32f2f;
  color: #d32f2f;
  padding: 12px 16px;
  margin-bottom: 20px;
  border-radius: 4px;
  font-size: 14px;
}