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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  color: #1a1a1a;
  background: #f5f5f5;
}

main {
  max-width: 960px;
  margin: 0 auto;
  padding: 2rem;
}

h1 {
  font-size: 2rem;
  margin-bottom: 1rem;
}

/* Auth page */
body.auth-page {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
}

.login-container {
  text-align: center;
  background: #fff;
  padding: 3rem 2.5rem;
  border-radius: 8px;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
}

.login-container p {
  color: #555;
  margin-bottom: 2rem;
}

.btn-microsoft {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  background: #0078d4;
  color: #fff;
  text-decoration: none;
  border-radius: 4px;
  font-size: 1rem;
  font-weight: 500;
}

.btn-microsoft:hover {
  background: #106ebe;
}