/* Minimalistic AI School theme */
:root {
  --primary-color: #0066ff;
  --secondary-color: #f5f7fa;
  --text-color: #212529;
  --card-hover: #f0f4ff;
}

body {
  font-family: "Inter", "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background-color: var(--secondary-color);
  color: var(--text-color);
}

.navbar-brand {
  font-weight: 600;
}

.hero {
  padding: 4rem 1rem;
  text-align: center;
}

.hero h1 {
  font-size: 2.5rem;
  font-weight: 700;
}

.btn-primary {
  background-color: var(--primary-color);
  border-color: var(--primary-color);
}

.btn-primary:hover {
  opacity: 0.9;
}

.card:hover {
  background-color: var(--card-hover);
  transition: background-color 0.2s ease-in-out;
}

.card.border-dashed {
  border: 2px dashed var(--primary-color);
  background: transparent;
}

footer {
  padding: 2rem 0;
  text-align: center;
  font-size: 0.9rem;
  color: #6c757d;
}