/* Base Styles */
:root {
  --bs-body-font-family:
    -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue",
    Arial, sans-serif;
}

body {
  margin: 0;
  padding: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background-color: #f8f9fa;
}

#app {
  flex: 1;
  display: flex;
  flex-direction: column;
}

/* Hero Section */
.hero-section {
  background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
  border-bottom: 1px solid #dee2e6;
}

.hero-section h1 {
  color: #212529;
  font-weight: 700;
}

/* Feature Icons */
.feature-icon {
  font-size: 4rem;
  opacity: 0.8;
}

/* Choice Cards */
.choice-card {
  transition: all 0.3s ease;
  border: 2px solid transparent;
  cursor: pointer;
}

.choice-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15) !important;
  border-color: #0d6efd;
}

.choice-icon {
  font-size: 4rem;
  opacity: 0.9;
}

/* Button Styles */
.btn {
  font-weight: 500;
  transition: all 0.2s ease;
}

.btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

.btn:active {
  transform: translateY(0);
}

/* Card Styles */
.card {
  border: 1px solid #e9ecef;
  border-radius: 0.5rem;
}

.card-header {
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

/* Alert Styles */
.alert-info {
  background-color: #cfe2ff;
  border-color: #b6d4fe;
  color: #084298;
}

/* Footer */
footer {
  margin-top: auto;
}

/* Responsive Typography */
@media (max-width: 768px) {
  .display-4 {
    font-size: 2.5rem;
  }

  .feature-icon,
  .choice-icon {
    font-size: 3rem;
  }

  .choice-card {
    margin-bottom: 1rem;
  }
}

/* Smooth Animations */
.card,
.btn,
.choice-card {
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Loading State */
.spinner-border-sm {
  width: 1rem;
  height: 1rem;
  border-width: 0.15em;
}

/* Link Styles */
a {
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  text-decoration: underline;
}

/* Navbar */
.navbar-brand {
  font-weight: 600;
  font-size: 1.25rem;
}

/* Accessibility */
.btn:focus,
.card:focus {
  outline: 2px solid #0d6efd;
  outline-offset: 2px;
}

/* Print Styles */
@media print {
  .navbar,
  footer,
  .btn {
    display: none;
  }
}