body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color: #333;
  line-height: 1.6;
}

.navbar-brand {
  font-size: 1.5rem;
}

.hero-section {
  min-height: 500px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.page-header {
  min-height: 200px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.btn-danger {
  background-color: #dc3545;
  border-color: #dc3545;
}

.btn-danger:hover {
  background-color: #c82333;
  border-color: #bd2130;
}

.btn-outline-danger {
  color: #dc3545;
  border-color: #dc3545;
}

.btn-outline-danger:hover {
  background-color: #dc3545;
  border-color: #dc3545;
  color: #fff;
}

.text-danger {
  color: #dc3545 !important;
}

.bg-danger {
  background-color: #dc3545 !important;
}

.card {
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.shadow-sm {
  box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
}

footer a {
  text-decoration: none;
  transition: opacity 0.3s ease;
}

footer a:hover {
  opacity: 0.8;
}

.form-control:focus {
  border-color: #dc3545;
  box-shadow: 0 0 0 0.2rem rgba(220, 53, 69, 0.25);
}

.navbar {
  transition: all 0.3s ease;
}

@media (max-width: 768px) {
  .hero-section {
    padding: 100px 0 60px;
  }

  .display-3 {
    font-size: 2.5rem;
  }

  .display-4 {
    font-size: 2rem;
  }
}

.list-unstyled li {
  margin-bottom: 0.5rem;
}

.badge {
  padding: 0.5em 0.75em;
}

.table {
  margin-top: 1rem;
}

.alert {
  border-radius: 0.25rem;
}

img {
  max-width: 100%;
  height: auto;
}