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

:root {
  --primary: #7c3aed;
  --primary-dark: #6d28d9;
  --primary-light: #a78bfa;
  --bg-light: #f8f7ff;
  --bg-white: #ffffff;
  --text-dark: #1f2937;
  --text-gray: #6b7280;
  --border-color: #e5e7eb;
  --success: #10b981;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Helvetica Neue", sans-serif;
  color: var(--text-dark);
  line-height: 1.6;
  background-color: var(--bg-white);
}

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

a:hover {
  color: var(--primary-dark);
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

header {
  background-color: var(--bg-white);
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 15px 0;
}

.logo {
  font-size: 24px;
  font-weight: 700;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.nav-menu {
  list-style: none;
  display: flex;
  gap: 30px;
}

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

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

.nav-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 24px;
  color: var(--primary);
  cursor: pointer;
}

hero {
  background: linear-gradient(135deg, var(--bg-light) 0%, var(--bg-white) 100%);
  padding: 80px 0;
  text-align: center;
}

.hero-content h1 {
  font-size: 48px;
  color: var(--text-dark);
  margin-bottom: 20px;
  line-height: 1.2;
}

.hero-content p {
  font-size: 18px;
  color: var(--text-gray);
  margin-bottom: 30px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.cta-button {
  display: inline-block;
  background-color: var(--primary);
  color: white;
  padding: 14px 40px;
  border-radius: 8px;
  font-weight: 600;
  transition: background-color 0.3s ease, transform 0.3s ease;
  border: none;
  cursor: pointer;
  font-size: 16px;
}

.cta-button:hover {
  background-color: var(--primary-dark);
  transform: translateY(-2px);
}

.cta-secondary {
  background-color: transparent;
  color: var(--primary);
  border: 2px solid var(--primary);
  margin-left: 15px;
}

.cta-secondary:hover {
  background-color: var(--primary);
  color: white;
}

section {
  padding: 60px 0;
}

.section-title {
  font-size: 36px;
  color: var(--text-dark);
  margin-bottom: 50px;
  text-align: center;
}

.section-title span {
  color: var(--primary);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.service-card {
  background: var(--bg-white);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 30px;
  text-align: center;
  transition: all 0.3s ease;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.service-card:hover {
  border-color: var(--primary);
  box-shadow: 0 8px 20px rgba(124, 58, 237, 0.1);
  transform: translateY(-4px);
}

.service-icon {
  font-size: 40px;
  color: var(--primary);
  margin-bottom: 15px;
}

.service-card h3 {
  font-size: 20px;
  margin-bottom: 15px;
  color: var(--text-dark);
}

.service-card p {
  color: var(--text-gray);
  font-size: 14px;
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.testimonial-card {
  background: var(--bg-light);
  border-left: 4px solid var(--primary);
  border-radius: 8px;
  padding: 25px;
  margin-bottom: 0;
}

.testimonial-author {
  font-weight: 600;
  color: var(--text-dark);
  margin-top: 15px;
}

.rating {
  color: var(--primary);
  font-size: 14px;
  margin-top: 10px;
}

.bmi-calculator {
  background: var(--bg-light);
  border-radius: 12px;
  padding: 40px;
  margin: 40px 0;
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
}

.bmi-calculator h3 {
  margin-bottom: 25px;
  color: var(--text-dark);
  text-align: center;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  margin-bottom: 8px;
  font-weight: 500;
  color: var(--text-dark);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  font-family: inherit;
  font-size: 14px;
  transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.1);
}

.bmi-result {
  margin-top: 20px;
  padding: 20px;
  background: white;
  border-radius: 8px;
  text-align: center;
  display: none;
}

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

.bmi-value {
  font-size: 32px;
  font-weight: 700;
  color: var(--primary);
}

.bmi-category {
  font-size: 16px;
  color: var(--text-gray);
  margin-top: 10px;
}

.form-checkbox {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 20px 0;
}

.form-checkbox input[type="checkbox"] {
  width: auto;
  cursor: pointer;
}

.form-checkbox label {
  margin: 0;
  cursor: pointer;
  font-size: 14px;
}

footer {
  background-color: var(--text-dark);
  color: white;
  padding: 50px 0 20px;
  margin-top: 80px;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 40px;
  margin-bottom: 40px;
}

.footer-section h4 {
  margin-bottom: 15px;
  font-size: 16px;
}

.footer-section p,
.footer-section li {
  color: rgba(255, 255, 255, 0.7);
  font-size: 14px;
  margin-bottom: 10px;
  list-style: none;
}

.footer-section a {
  color: rgba(255, 255, 255, 0.7);
  transition: color 0.3s ease;
}

.footer-section a:hover {
  color: var(--primary-light);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 20px;
  text-align: center;
  color: rgba(255, 255, 255, 0.7);
  font-size: 14px;
}

.about-hero {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: white;
  padding: 60px 0;
  text-align: center;
  margin-bottom: 60px;
}

.about-hero h1 {
  font-size: 42px;
  margin-bottom: 15px;
}

.team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.team-member {
  background: var(--bg-white);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
  transition: transform 0.3s ease;
}

.team-member:hover {
  transform: translateY(-8px);
}

.team-member img {
  width: 100%;
  height: 300px;
  object-fit: cover;
}

.team-info {
  padding: 25px;
}

.team-info h3 {
  margin-bottom: 5px;
  color: var(--text-dark);
}

.team-info p {
  color: var(--primary);
  font-size: 14px;
  margin-bottom: 10px;
}

.team-info span {
  color: var(--text-gray);
  font-size: 13px;
}

.contact-form {
  max-width: 600px;
  margin: 40px auto;
  background: var(--bg-light);
  padding: 40px;
  border-radius: 12px;
}

.success-message {
  background-color: rgba(16, 185, 129, 0.1);
  border-left: 4px solid var(--success);
  color: var(--text-dark);
  padding: 20px;
  border-radius: 8px;
  margin-bottom: 30px;
}

.success-message strong {
  color: var(--success);
}

.policy-section {
  max-width: 800px;
  margin: 0 auto 40px;
  line-height: 1.8;
}

.policy-section h2 {
  color: var(--primary);
  margin-top: 30px;
  margin-bottom: 15px;
  font-size: 24px;
}

.policy-section h3 {
  color: var(--text-dark);
  margin-top: 20px;
  margin-bottom: 10px;
  font-size: 18px;
}

.policy-section p,
.policy-section li {
  color: var(--text-gray);
  margin-bottom: 10px;
}

.policy-section ul {
  margin-left: 20px;
  margin-bottom: 15px;
}

.policy-section li {
  list-style-type: disc;
}

.policy-date {
  color: var(--text-gray);
  font-size: 14px;
  font-style: italic;
  margin-bottom: 20px;
}

@media (max-width: 768px) {
  .navbar {
    flex-wrap: wrap;
  }

  .nav-toggle {
    display: block;
  }

  .nav-menu {
    width: 100%;
    flex-direction: column;
    gap: 0;
    display: none;
    margin-top: 15px;
  }

  .nav-menu.active {
    display: flex;
  }

  .nav-menu li {
    border-bottom: 1px solid var(--border-color);
    padding: 10px 0;
  }

  .hero-content h1 {
    font-size: 32px;
  }

  .hero-content p {
    font-size: 16px;
  }

  .cta-secondary {
    margin-left: 0;
    display: block;
    margin-top: 15px;
  }

  .section-title {
    font-size: 28px;
  }

  hero {
    padding: 50px 0;
  }

  section {
    padding: 40px 0;
  }

  .footer-content {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .about-hero h1 {
    font-size: 32px;
  }
}

@media (max-width: 480px) {
  .nav-menu {
    gap: 0;
  }

  .logo {
    font-size: 20px;
  }

  .hero-content h1 {
    font-size: 24px;
  }

  .section-title {
    font-size: 24px;
  }

  .services-grid {
    grid-template-columns: 1fr;
  }

  .contact-form {
    padding: 25px;
  }
}