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

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

.auth-container {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100%;
}

.auth-card {
  background: white;
  border-radius: 12px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
  width: 100%;
  max-width: 400px;
  overflow: hidden;
}

.auth-header {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  padding: 40px 30px;
  text-align: center;
}

.auth-header h1 {
  font-size: 28px;
  margin-bottom: 8px;
  font-weight: 700;
}

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

.auth-body {
  padding: 40px 30px;
}

.login-btn {
  width: 100%;
  padding: 12px 20px;
  border: none;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  transition: all 0.3s ease;
  background: #f3f4f6;
  color: #374151;
}

.login-btn:hover {
  background: #e5e7eb;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.login-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

.login-btn.google-btn {
  background: white;
  color: #1f2937;
  border: 1px solid #e5e7eb;
}

.google-icon {
  width: 20px;
  height: 20px;
}

.auth-footer {
  text-align: center;
  color: #666;
  font-size: 12px;
  padding: 20px 30px;
  border-top: 1px solid #f3f4f6;
}

.error-message {
  background: #fee;
  color: #c00;
  padding: 12px;
  border-radius: 6px;
  margin-bottom: 20px;
  font-size: 14px;
  display: none;
}

.error-message.show {
  display: block;
}

.loading {
  opacity: 0.7;
  pointer-events: none;
}