/* Amniotic Membranes MVP - Professional Medical B2B Styles */
:root {
  --primary: #1a365d;
  --primary-light: #2c5282;
  --secondary: #285e61;
  --accent: #c53030;
  --gray-50: #f7fafc;
  --gray-100: #edf2f7;
  --gray-200: #e2e8f0;
  --gray-300: #cbd5e0;
  --gray-600: #718096;
  --gray-800: #2d3748;
  --gray-900: #1a202c;
  --white: #ffffff;
  --max-width: 1200px;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  line-height: 1.6;
  color: var(--gray-800);
  background: var(--white);
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: color 0.2s;
}

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

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Header */
header {
  background: var(--white);
  border-bottom: 1px solid var(--gray-200);
  position: sticky;
  top: 0;
  z-index: 100;
}

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

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary);
}

.logo span {
  color: var(--secondary);
}

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

nav a {
  color: var(--gray-800);
  font-weight: 500;
  padding: 0.5rem 0;
  position: relative;
}

nav a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary);
  transition: width 0.2s;
}

nav a:hover::after,
nav a.active::after {
  width: 100%;
}

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--gray-800);
}

/* CTA Button */
.cta-btn {
  display: inline-block;
  background: var(--primary);
  color: var(--white);
  padding: 0.75rem 1.5rem;
  border-radius: 6px;
  font-weight: 600;
  transition: all 0.2s;
}

.cta-btn:hover {
  background: var(--primary-light);
  color: var(--white);
  transform: translateY(-1px);
}

.cta-btn.accent {
  background: var(--accent);
}

.cta-btn.accent:hover {
  background: #9b2c2c;
}

/* Hero Section */
.hero {
  background: linear-gradient(135deg, var(--gray-50) 0%, var(--gray-100) 100%);
  padding: 4rem 0;
}

.hero-content {
  max-width: 700px;
}

.hero h1 {
  font-size: 2.75rem;
  font-weight: 800;
  color: var(--gray-900);
  line-height: 1.2;
  margin-bottom: 1.5rem;
}

.hero p {
  font-size: 1.25rem;
  color: var(--gray-600);
  margin-bottom: 2rem;
}

.hero-cta {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

/* Trust Section */
.trust-section {
  background: var(--white);
  padding: 3rem 0;
  border-bottom: 1px solid var(--gray-200);
}

.trust-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  text-align: center;
}

.trust-item h3 {
  font-size: 1.125rem;
  color: var(--gray-900);
  margin-bottom: 0.5rem;
}

.trust-item p {
  color: var(--gray-600);
  font-size: 0.95rem;
}

/* Section Styles */
section {
  padding: 4rem 0;
}

section h2 {
  font-size: 2rem;
  color: var(--gray-900);
  margin-bottom: 1rem;
}

section .section-intro {
  font-size: 1.125rem;
  color: var(--gray-600);
  max-width: 700px;
  margin-bottom: 3rem;
}

/* Products Grid */
.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.product-card {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: 8px;
  padding: 2rem;
  transition: all 0.2s;
}

.product-card:hover {
  border-color: var(--primary);
  box-shadow: 0 4px 20px rgba(0,0,0,0.08);
}

.product-card h3 {
  font-size: 1.25rem;
  color: var(--gray-900);
  margin-bottom: 0.75rem;
}

.product-card .price {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 1rem;
}

.product-card p {
  color: var(--gray-600);
  margin-bottom: 1.5rem;
  font-size: 0.95rem;
}

.product-features {
  list-style: none;
  margin-bottom: 1.5rem;
}

.product-features li {
  padding: 0.5rem 0;
  color: var(--gray-600);
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.product-features li::before {
  content: '';
  width: 6px;
  height: 6px;
  background: var(--secondary);
  border-radius: 50%;
}

/* Evidence Cards */
.evidence-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 2rem;
}

.evidence-card {
  background: var(--gray-50);
  border-radius: 8px;
  padding: 2rem;
  border-left: 4px solid var(--secondary);
}

.evidence-card h3 {
  font-size: 1.125rem;
  color: var(--gray-900);
  margin-bottom: 1rem;
}

.evidence-card p {
  color: var(--gray-600);
  margin-bottom: 1rem;
  font-size: 0.95rem;
}

.evidence-source {
  font-size: 0.85rem;
  color: var(--gray-600);
  font-style: italic;
}

/* FAQ */
.faq-list {
  max-width: 800px;
}

.faq-item {
  border-bottom: 1px solid var(--gray-200);
  padding: 1.5rem 0;
}

.faq-item h3 {
  font-size: 1.125rem;
  color: var(--gray-900);
  margin-bottom: 0.75rem;
}

.faq-item p {
  color: var(--gray-600);
  line-height: 1.7;
}

/* Contact Form */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
}

.contact-form {
  background: var(--gray-50);
  padding: 2rem;
  border-radius: 8px;
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  font-weight: 500;
  color: var(--gray-800);
  margin-bottom: 0.5rem;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid var(--gray-300);
  border-radius: 6px;
  font-size: 1rem;
  font-family: inherit;
  transition: border-color 0.2s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary);
}

.contact-info h3 {
  font-size: 1.25rem;
  color: var(--gray-900);
  margin-bottom: 1rem;
}

.contact-info p {
  color: var(--gray-600);
  margin-bottom: 1.5rem;
}

.contact-details {
  list-style: none;
}

.contact-details li {
  padding: 0.75rem 0;
  color: var(--gray-600);
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

/* Footer */
footer {
  background: var(--gray-900);
  color: var(--gray-300);
  padding: 3rem 0 1.5rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 2rem;
}

.footer-brand h3 {
  color: var(--white);
  font-size: 1.25rem;
  margin-bottom: 1rem;
}

.footer-brand p {
  font-size: 0.9rem;
  line-height: 1.6;
}

.footer-links h4 {
  color: var(--white);
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 1rem;
}

.footer-links ul {
  list-style: none;
}

.footer-links li {
  margin-bottom: 0.5rem;
}

.footer-links a {
  color: var(--gray-400);
  font-size: 0.9rem;
}

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

.footer-bottom {
  border-top: 1px solid var(--gray-700);
  padding-top: 1.5rem;
  text-align: center;
  font-size: 0.85rem;
  color: var(--gray-500);
}

/* Mobile Responsive */
@media (max-width: 768px) {
  nav ul {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--white);
    flex-direction: column;
    padding: 1rem;
    gap: 0;
    border-bottom: 1px solid var(--gray-200);
  }

  nav ul.open {
    display: flex;
  }

  nav ul li {
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--gray-100);
  }

  .mobile-menu-btn {
    display: block;
  }

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

  .trust-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .contact-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  section {
    padding: 2.5rem 0;
  }
}