:root {
  --primary-color: #dc3545;
  --primary-dark: #c82333;
  --secondary-color: #6c757d;
  --light-bg: #f8f9fa;
  --dark-bg: #343a40;
  --text-dark: #212529;
  --text-light: #6c757d;
  --border-color: #dee2e6;
}

body {
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  color: var(--text-dark);
  line-height: 1.6;
}

.navbar {
  padding: 1rem 0;
  transition: all 0.3s ease;
}

.navbar-brand {
  font-size: 1.5rem;
  color: var(--primary-color) !important;
}

.nav-link {
  font-weight: 500;
  color: var(--text-dark) !important;
  transition: color 0.3s ease;
  padding: 0.5rem 1rem !important;
}

.nav-link:hover {
  color: var(--primary-color) !important;
}

.nav-link.active {
  color: var(--primary-color) !important;
}

.hero-section {
  padding: 120px 0 80px;
  background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%);
}

.hero-section h1 {
  color: var(--text-dark);
  margin-bottom: 1.5rem;
}

.hero-section .lead {
  color: var(--text-light);
  font-size: 1.25rem;
}

.btn-primary {
  background-color: var(--primary-color);
  border-color: var(--primary-color);
  padding: 0.75rem 2rem;
  font-weight: 600;
  transition: all 0.3s ease;
}

.btn-primary:hover {
  background-color: var(--primary-dark);
  border-color: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(220, 53, 69, 0.3);
}

.btn-outline-primary {
  color: var(--primary-color);
  border-color: var(--primary-color);
  padding: 0.75rem 2rem;
  font-weight: 600;
  transition: all 0.3s ease;
}

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

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

.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,
.approach-icon,
.benefit-icon,
.why-icon,
.summary-icon,
.cert-icon {
  font-size: 3rem;
  color: var(--primary-color);
}

.page-header {
  padding: 120px 0 60px;
}

.page-header h1 {
  color: var(--text-dark);
}

.cta-section {
  background-color: var(--primary-color);
}

.footer {
  background-color: var(--dark-bg);
}

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

.footer a:hover {
  color: var(--primary-color) !important;
}

.bmi-calculator-section .card {
  border: 1px solid var(--border-color);
}

#bmi-result {
  padding: 1rem;
  border-radius: 0.25rem;
  display: none;
}

#bmi-result.show {
  display: block;
}

.bmi-underweight {
  background-color: #fff3cd;
  border-left: 4px solid #ffc107;
}

.bmi-normal {
  background-color: #d4edda;
  border-left: 4px solid #28a745;
}

.bmi-overweight {
  background-color: #fff3cd;
  border-left: 4px solid #ffc107;
}

.bmi-obese {
  background-color: #f8d7da;
  border-left: 4px solid #dc3545;
}

.contact-form .form-control {
  border: 2px solid var(--border-color);
  padding: 0.75rem;
  transition: border-color 0.3s ease;
}

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

.contact-info-box {
  padding: 1.5rem;
  background-color: var(--light-bg);
  border-radius: 0.5rem;
  border-left: 4px solid var(--primary-color);
}

.thank-you-icon {
  font-size: 5rem;
  color: #28a745;
}

.step-number {
  display: inline-block;
  width: 50px;
  height: 50px;
  line-height: 50px;
  background-color: var(--primary-color);
  color: white;
  border-radius: 50%;
  font-size: 1.5rem;
  font-weight: bold;
}

.policy-content h2 {
  color: var(--text-dark);
  margin-top: 2rem;
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--primary-color);
}

.policy-content h3 {
  color: var(--text-dark);
  margin-top: 1.5rem;
  margin-bottom: 1rem;
}

.policy-content ul {
  margin-bottom: 1.5rem;
}

.policy-content table {
  margin-bottom: 2rem;
}

.format-step {
  margin-bottom: 2rem;
  padding-left: 1rem;
  border-left: 3px solid var(--primary-color);
}

.format-step h4 {
  color: var(--primary-color);
  margin-bottom: 0.5rem;
}

.faq-item strong {
  color: var(--primary-color);
}

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

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

  .page-header {
    padding: 100px 0 40px;
  }

  .page-header h1 {
    font-size: 2.5rem;
  }

  .btn-lg {
    padding: 0.5rem 1.5rem;
    font-size: 1rem;
  }
}

.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;
}

.text-primary {
  color: var(--primary-color) !important;
}

.bg-primary {
  background-color: var(--primary-color) !important;
}

.border-primary {
  border-color: var(--primary-color) !important;
}