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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  line-height: 1.6;
  color: #333;
  padding-top: 70px;
}

.navbar {
  transition: all 0.3s ease;
}

.navbar-brand {
  font-size: 1.5rem;
  color: #007bff !important;
}

.nav-link {
  font-weight: 500;
  color: #555 !important;
  transition: color 0.3s ease;
}

.nav-link:hover {
  color: #007bff !important;
}

.hero-section {
  padding: 100px 0;
  background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
}

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

.hero-section .lead {
  color: #6c757d;
}

.btn-primary {
  background-color: #007bff;
  border-color: #007bff;
  padding: 12px 30px;
  font-weight: 600;
  transition: all 0.3s ease;
}

.btn-primary:hover {
  background-color: #0056b3;
  border-color: #0056b3;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 123, 255, 0.3);
}

.btn-outline-primary {
  border-color: #007bff;
  color: #007bff;
  padding: 12px 30px;
  font-weight: 600;
  transition: all 0.3s ease;
}

.btn-outline-primary:hover {
  background-color: #007bff;
  border-color: #007bff;
  transform: translateY(-2px);
}

.card {
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  border: none;
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}

.card-img-top {
  height: 250px;
  object-fit: cover;
}

.feature-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
}

.page-header {
  padding-top: 100px;
}

.cta-section {
  background: linear-gradient(135deg, #007bff 0%, #0056b3 100%);
  color: white;
}

.cta-section .btn-primary {
  background-color: white;
  color: #007bff;
  border-color: white;
}

.cta-section .btn-primary:hover {
  background-color: #f8f9fa;
  color: #0056b3;
}

.footer {
  background-color: #212529;
}

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

.footer a:hover {
  color: #007bff !important;
}

.bmi-calculator-section {
  background-color: #f8f9fa;
}

#bmiResult {
  background-color: white;
  padding: 20px;
  border-radius: 8px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.testimonial-content {
  background-color: white;
  padding: 30px;
  border-radius: 8px;
}

.contact-info-box {
  border-left: 4px solid #007bff;
}

.cert-box {
  background-color: white;
  border-radius: 8px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease;
}

.cert-box:hover {
  transform: translateY(-5px);
}

.policy-content h2 {
  color: #212529;
  margin-top: 30px;
  padding-top: 20px;
}

.policy-content h3 {
  color: #495057;
  margin-top: 20px;
}

.policy-content ul {
  margin-left: 20px;
}

.thank-you-content {
  min-height: 400px;
}

.accordion .btn-link {
  text-decoration: none;
  color: #212529;
  font-weight: 600;
  width: 100%;
  text-align: left;
}

.accordion .btn-link:hover {
  color: #007bff;
}

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

.shadow {
  box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15) !important;
}

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

  .hero-section h1 {
    font-size: 2rem;
  }

  .page-header {
    padding-top: 80px;
  }

  body {
    padding-top: 60px;
  }
}