:root {
  --primary-blue: #0066cc;
  --light-gray: #f8f9fa;
  --dark-text: #1a1a1a;
  --border-light: #e0e0e0;
  --white: #ffffff;
}

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

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

a {
  color: var(--primary-blue);
  text-decoration: none;
  transition: color 0.3s ease;
}

a:hover {
  color: #0052a3;
}

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

.btn-primary:hover,
.btn-primary:focus {
  background-color: #0052a3;
  border-color: #0052a3;
  color: var(--white);
}

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

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

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

.navbar-light .navbar-brand {
  font-weight: bold;
  font-size: 1.5rem;
}

.navbar-light .navbar-nav .nav-link {
  color: var(--dark-text) !important;
  margin-left: 1rem;
  transition: color 0.3s ease;
}

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

.hero-section {
  background: linear-gradient(135deg, #f8f9fa 0%, #e8f0ff 100%);
  padding-top: 4rem;
  padding-bottom: 4rem;
}

.hero-section h1 {
  line-height: 1.3;
  margin-bottom: 1.5rem;
  color: var(--dark-text);
}

.hero-section p {
  font-size: 1.1rem;
  color: #555;
}

.bmi-calculator {
  padding: 3rem 0;
}

.bmi-calculator h2 {
  color: var(--dark-text);
  margin-bottom: 2rem;
}

.form-control {
  border: 1px solid var(--border-light);
  border-radius: 0.5rem;
  padding: 0.75rem 1rem;
  font-size: 1rem;
  transition: border-color 0.3s ease;
}

.form-control:focus {
  border-color: var(--primary-blue);
  box-shadow: 0 0 0 0.2rem rgba(0, 102, 204, 0.25);
}

.services-preview {
  padding: 3rem 0;
}

.services-preview h2 {
  color: var(--dark-text);
  margin-bottom: 2rem;
}

.card {
  border: 1px solid var(--border-light);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1) !important;
}

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

.testimonials {
  background-color: var(--light-gray);
  padding: 3rem 0;
}

.testimonials h2 {
  color: var(--dark-text);
  margin-bottom: 2rem;
}

.cta-section {
  background: linear-gradient(135deg, var(--primary-blue) 0%, #0052a3 100%);
  padding: 3rem 0;
  color: var(--white);
}

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

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

.cta-section .btn-light:hover {
  background-color: #f0f0f0;
  border-color: #f0f0f0;
}

footer {
  background-color: #1a1a1a;
  color: #fff;
  margin-top: 3rem;
}

footer a {
  color: rgba(255, 255, 255, 0.5);
  transition: color 0.3s ease;
}

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

footer hr {
  background-color: rgba(255, 255, 255, 0.2);
  border: none;
  height: 1px;
}

.page-header {
  background: linear-gradient(135deg, #f8f9fa 0%, #e8f0ff 100%);
  padding: 2rem 0;
  margin-bottom: 2rem;
}

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

.page-header p {
  color: #666;
}

.policy-content h2 {
  color: var(--dark-text);
  margin-top: 2rem;
  margin-bottom: 1rem;
  font-weight: bold;
}

.policy-content p,
.policy-content ul {
  color: #555;
  line-height: 1.8;
}

.thank-you-section {
  background: linear-gradient(135deg, #f8f9fa 0%, #e8f0ff 100%);
}

.thank-you-section .card {
  border: none;
  max-width: 600px;
}

.min-vh-100 {
  min-height: 100vh;
}

@media (max-width: 768px) {
  .navbar-nav {
    margin-top: 1rem;
  }

  .navbar-nav .nav-item {
    margin-left: 0;
    margin-bottom: 0.5rem;
  }

  .hero-section {
    padding-top: 2rem;
    padding-bottom: 2rem;
  }

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

  .card img {
    height: 200px;
  }

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

  footer .row > div {
    margin-bottom: 2rem;
  }

  .cta-section {
    padding: 2rem 0;
  }
}

@media (max-width: 576px) {
  .hero-section h1 {
    font-size: 1.5rem;
  }

  .lead {
    font-size: 1rem;
  }

  .display-4 {
    font-size: 1.5rem;
  }

  .card-title {
    font-size: 1rem;
  }

  .container {
    padding-left: 1rem;
    padding-right: 1rem;
  }
}