:root {
  --primary-color: #28a745;
  --secondary-color: #6c757d;
  --accent-color: #ffc107;
  --text-dark: #212529;
  --text-light: #6c757d;
  --bg-light: #f8f9fa;
  --white: #ffffff;
}

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

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

.nav-link {
  font-weight: 500;
  color: var(--text-dark);
  transition: color 0.3s ease;
}

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

.hero-section {
  padding: 80px 0;
  background: linear-gradient(135deg, #f5f7fa 0%, #ffffff 100%);
}

.hero-section h1 {
  color: var(--text-dark);
  font-size: 2.5rem;
  line-height: 1.2;
}

.hero-section .lead {
  color: var(--text-light);
  font-size: 1.1rem;
}

.btn-primary {
  background-color: var(--primary-color);
  border-color: var(--primary-color);
  padding: 12px 30px;
  font-weight: 600;
  transition: all 0.3s ease;
}

.btn-primary:hover {
  background-color: #218838;
  border-color: #1e7e34;
  transform: translateY(-2px);
  box-shadow: 0 4px 8px rgba(40, 167, 69, 0.3);
}

.btn-outline-primary {
  color: var(--primary-color);
  border-color: var(--primary-color);
  padding: 12px 30px;
  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 8px 16px rgba(0, 0, 0, 0.1);
}

.service-icon img {
  width: 100%;
  height: 150px;
  object-fit: cover;
}

.bmi-calculator {
  background-color: var(--bg-light);
}

.bmi-result {
  font-size: 1.5rem;
  font-weight: bold;
  padding: 20px;
  border-radius: 8px;
  margin-top: 20px;
}

.testimonials .card {
  border-left: 4px solid var(--primary-color);
}

.cta-section {
  background: linear-gradient(135deg, var(--primary-color) 0%, #218838 100%);
  color: var(--white);
}

.cta-section h2 {
  color: var(--white);
}

.cta-section .lead {
  color: var(--white);
}

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

.cta-section .btn-primary:hover {
  background-color: var(--bg-light);
  border-color: var(--bg-light);
}

.footer {
  margin-top: 60px;
}

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

.footer a:hover {
  color: var(--accent-color);
}

.page-header {
  background: linear-gradient(135deg, var(--primary-color) 0%, #218838 100%);
  color: var(--white);
}

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

.page-header .lead {
  color: var(--white);
}

.feature-list {
  list-style: none;
  padding-left: 0;
}

.feature-list li {
  padding: 8px 0;
  padding-left: 30px;
  position: relative;
}

.feature-list li:before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--primary-color);
  font-weight: bold;
  font-size: 1.2rem;
}

.icon-large {
  display: inline-block;
}

.cert-icon svg {
  margin: 0 auto;
}

.policy-section h2 {
  margin-top: 30px;
  margin-bottom: 15px;
  color: var(--text-dark);
}

.policy-section h3 {
  margin-top: 20px;
  margin-bottom: 10px;
  color: var(--text-dark);
  font-size: 1.3rem;
}

.policy-section ul {
  margin-bottom: 20px;
}

.thank-you-icon svg {
  display: block;
  margin: 0 auto;
}

@media (max-width: 768px) {
  .hero-section h1 {
    font-size: 2rem;
  }

  .hero-section {
    padding: 40px 0;
  }

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