/* Base styles */
* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
  line-height: 1.5;
  color: #333;
  background: #f8f9fa;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Flash messages */
.flash-messages {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: 10000;
  max-width: 400px;
}

.flash-message {
  padding: 1rem 1.5rem;
  border-radius: 10px;
  margin-bottom: 0.75rem;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
  animation: slideIn 0.3s ease;
  font-weight: 500;
}

.flash-success {
  background: #d4edda;
  color: #155724;
  border-left: 4px solid #28a745;
}

.flash-error {
  background: #f8d7da;
  color: #721c24;
  border-left: 4px solid #dc3545;
}

@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* Utility */
.text-center {
  text-align: center;
}

.mt-3 {
  margin-top: 1rem;
}

.mb-3 {
  margin-bottom: 1rem;
}

/* Responsive */
@media (max-width: 768px) {
  .container {
    padding: 0 1rem;
  }
  .flash-messages {
    left: 1rem;
    right: 1rem;
    top: 1rem;
    max-width: none;
  }
}