:root {
  --primary: #005a9c;
  --primary-light: #007acc;
  --secondary: #50c878;
  --bg-light: #f8f9fa;
  --text-dark: #333;
  --text-muted: #6c757d;
  --border: #dee2e6;
  --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  --transition: all 0.3s ease;
}

body {
  color:#333;
  line-height: 1.6;
  font:13px Courier, Geneva, sans-serif,serif;
  background:url(../images/bg_body.jpg) repeat-x;
  max-width: 960px;
  margin: 0 auto;
}

a {
  text-decoration: none;
  color: inherit;
}

img {
  max-width: 100%;
  height: auto;
}

.container {
  width: 90%;
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 1rem;
}

header {
  background: white;
  box-shadow: 0 2px 10px rgba(0,0,0,0.1);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 0;
}

.logo {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--primary);
}

nav ul {
  display: flex;
  list-style: none;
  gap: 2rem;
}

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

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

.hero {
  background: linear-gradient(135deg, var(--primary) 0%, #003d66 100%);
  color: white;
  text-align: center;
  padding: 6rem 1rem 4rem;
  margin-bottom: 3rem;
}

.hero h1 {
  font-size: 2.8rem;
  margin-bottom: 1.5rem;
  font-weight: 700;
  line-height: 1.2;
}

.hero p {
  font-size: 1.3rem;
  max-width: 800px;
  margin: 0 auto 2.5rem;
  opacity: 0.9;
}

.btn-primary {
  display: inline-block;
  background: var(--secondary);
  color: white;
  padding: 1rem 2.5rem;
  border-radius: 50px;
  font-weight: 600;
  font-size: 1.1rem;
  box-shadow: var(--shadow);
  transition: var(--transition);
}

.btn-primary:hover {
  background: #45b76a;
  transform: translateY(-3px);
  box-shadow: 0 6px 12px rgba(0,0,0,0.15);
}

.value-props {
  background: white;
}

.section-title {
  text-align: center;
  font-size: 2rem;
  color: var(--primary);
  margin-bottom: 3rem;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2.5rem;
  padding: 0 1rem;
}

.feature-card {
  background: var(--bg-light);
  border-radius: 10px;
  padding: 2rem;
  text-align: center;
  box-shadow: var(--shadow);
  transition: var(--transition);
}

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

.feature-icon {
  font-size: 3rem;
  color: var(--primary);
  margin-bottom: 1.5rem;
}

.feature-card h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  color: var(--text-dark);
}

.feature-card p {
  color: var(--text-muted);
}

.product-showcase {
  padding: 5rem 0;
  background: var(--bg-light);
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  padding: 0 1rem;
}

.product-overview-card {
  background: white;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: var(--transition);
  text-align: center;
}

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

.product-overview-card h3 {
  font-size: 1.4rem;
  padding: 1.5rem 1rem;
  background: var(--primary);
  color: white;
  margin: 0;
}

.protocol-tag {
  display: inline-block;
  background: var(--secondary);
  color: white;
  padding: 0.3rem 1rem;
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 600;
  margin: 1rem 0;
}

.product-overview-card p {
  padding: 1rem;
  color: var(--text-muted);
}

.btn-learn-more {
  display: block;
  background: transparent;
  border: 2px solid var(--primary);
  color: var(--primary);
  padding: 0.8rem 2rem;
  border-radius: 50px;
  font-weight: 600;
  margin: 1rem auto 1.5rem;
  transition: var(--transition);
}

.btn-learn-more:hover {
  background: var(--primary);
  color: white;
}

footer {
  background: var(--text-dark);
  color: white;
  text-align: center;
  padding: 3rem 0 2rem;
  margin-top: 3rem;
}

.footer-content {
  max-width: 600px;
  margin: 0 auto;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 2rem;
  margin: 1.5rem 0;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.8);
  font-size: 0.9rem;
}

.footer-links a:hover {
  text-decoration: underline;
}

footer p {
  opacity: 0.8;
  font-size: 0.9rem;
  margin: 0.5rem 0;
}

@media (max-width: 768px) {
  .header-container {
    flex-direction: column;
    gap: 1rem;
  }
  nav ul {
    gap: 1rem;
    flex-wrap: wrap;
    justify-content: center;
  }
  .hero h1 { font-size: 2.2rem; }
  .hero p { font-size: 1.1rem; }
  .section-title { font-size: 1.8rem; }
  .features-grid,
  .products-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
  .footer-links { flex-direction: column; gap: 0.5rem; }
}