/* Biobarn Corporation - Premium Landing Page Styles */

:root {
  --primary-blue: #1e3a5f;
  --secondary-blue: #2d4a6b;
  --accent-blue: #4a90e2;
  --light-blue: #f8fbff;
  --white: #ffffff;
  --gray-100: #f8f9fa;
  --gray-200: #e9ecef;
  --gray-300: #dee2e6;
  --gray-600: #6c757d;
  --gray-800: #343a40;
  --gray-900: #212529;
  --success-green: #28a745;
  
  --font-primary: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-secondary: Georgia, 'Times New Roman', serif;
  
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);
  --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.16);
  
  --transition-smooth: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --transition-fast: all 0.2s ease;
}

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

body {
  font-family: var(--font-primary);
  line-height: 1.6;
  color: var(--gray-800);
  background: linear-gradient(135deg, var(--white) 0%, var(--light-blue) 100%);
  min-height: 100vh;
  overflow-x: hidden;
}

/* Hero Section */
.hero {
  background: linear-gradient(135deg, var(--primary-blue) 0%, var(--secondary-blue) 100%);
  color: var(--white);
  padding: 6rem 2rem 4rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="rgba(255,255,255,0.03)" stroke-width="1"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
  opacity: 0.5;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 800px;
  margin: 0 auto;
  animation: heroFadeIn 1.2s ease-out;
}

.hero-title {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 600;
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
}

.hero-subtitle {
  font-size: clamp(1.1rem, 2.5vw, 1.3rem);
  opacity: 0.9;
  font-weight: 300;
  max-width: 600px;
  margin: 0 auto;
}

@keyframes heroFadeIn {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Navigation Tabs */
.tabs {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  justify-content: center;
  gap: 0;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--gray-200);
  padding: 0;
}

.tab {
  background: none;
  border: none;
  font-size: 0.95rem;
  font-weight: 500;
  cursor: pointer;
  padding: 1.25rem 2rem;
  position: relative;
  color: var(--gray-600);
  transition: var(--transition-fast);
  border-bottom: 3px solid transparent;
}

.tab:hover {
  color: var(--primary-blue);
  background: rgba(30, 58, 95, 0.03);
}

.tab.active {
  color: var(--primary-blue);
  border-bottom-color: var(--accent-blue);
  background: rgba(30, 58, 95, 0.05);
}

/* Main Content */
main {
  padding: 0;
  min-height: 60vh;
}

.content-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 4rem 2rem;
}

.tab-panel {
  display: none;
}

.tab-panel.active {
  display: block;
  opacity: 1;
  animation: fadeInUp 0.5s ease-out forwards;
}

@keyframes fadeInUp {
  0% {
    opacity: 0;
    transform: translateY(20px);
  }
  100% {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Typography */
h2 {
  font-size: clamp(2rem, 4vw, 2.5rem);
  font-weight: 600;
  color: var(--primary-blue);
  margin-bottom: 2rem;
  text-align: center;
  letter-spacing: -0.01em;
}

h3 {
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--secondary-blue);
  margin-bottom: 1rem;
}

.lead {
  font-size: 1.25rem;
  font-weight: 400;
  color: var(--gray-700);
  margin-bottom: 1.5rem;
  line-height: 1.7;
}

.section-intro {
  text-align: center;
  font-size: 1.1rem;
  color: var(--gray-600);
  margin-bottom: 3rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

p {
  margin-bottom: 1rem;
  line-height: 1.7;
}

/* Mission Statement */
.mission-statement {
  background: var(--white);
  padding: 3rem;
  border-radius: 16px;
  box-shadow: var(--shadow-md);
  margin-bottom: 3rem;
  border-left: 4px solid var(--accent-blue);
}

/* Value Proposition */
.value-proposition {
  background: linear-gradient(135deg, var(--light-blue) 0%, var(--white) 100%);
  padding: 3rem;
  border-radius: 16px;
  margin-bottom: 3rem;
  border: 1px solid var(--gray-200);
}

.value-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}

.value-item {
  background: var(--white);
  padding: 2rem;
  border-radius: 12px;
  box-shadow: var(--shadow-sm);
  border-left: 3px solid var(--accent-blue);
  transition: var(--transition-smooth);
}

.value-item:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.value-item h4 {
  color: var(--primary-blue);
  font-size: 1.2rem;
  margin-bottom: 1rem;
  font-weight: 600;
}

.value-item p {
  color: var(--gray-700);
  line-height: 1.6;
  margin: 0;
}

/* Trust Indicators */
.trust-indicators {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.indicator {
  text-align: center;
  padding: 2rem;
  background: var(--white);
  border-radius: 12px;
  box-shadow: var(--shadow-sm);
  transition: var(--transition-smooth);
}

.indicator:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.indicator h3 {
  color: var(--accent-blue);
  font-size: 1.8rem;
  margin-bottom: 0.5rem;
}

/* Programs Section */
.flagship-header {
  text-align: center;
  margin-bottom: 3rem;
  background: linear-gradient(135deg, var(--light-blue) 0%, var(--white) 100%);
  padding: 2rem;
  border-radius: 16px;
  border: 1px solid var(--gray-200);
}

.flagship-header h3 {
  color: var(--primary-blue);
  font-size: 1.8rem;
  margin-bottom: 1.5rem;
  font-weight: 600;
}

.programs-hero-image {
  max-width: 400px;
  width: 100%;
  border-radius: 12px;
  box-shadow: var(--shadow-md);
  margin: 0 auto;
  display: block;
}

/* Programs Grid */
.programs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}

.program-card {
  background: var(--white);
  padding: 2.5rem;
  border-radius: 16px;
  box-shadow: var(--shadow-md);
  transition: var(--transition-smooth);
  border: 1px solid var(--gray-200);
  position: relative;
  overflow: hidden;
}

.program-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--accent-blue), var(--primary-blue));
}

.program-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
  border-color: var(--accent-blue);
}

.program-card.highlighted {
  border-color: var(--accent-blue);
  background: linear-gradient(135deg, var(--white) 0%, rgba(74, 144, 226, 0.03) 100%);
}

.program-card.highlighted::before {
  background: linear-gradient(90deg, var(--accent-blue), var(--success-green));
}

.program-card.featured {
  border-color: var(--success-green);
  background: linear-gradient(135deg, var(--white) 0%, rgba(40, 167, 69, 0.03) 100%);
}

.program-card.featured::before {
  background: linear-gradient(90deg, var(--success-green), var(--accent-blue));
}

.program-card.upcoming {
  border-color: var(--accent-blue);
  background: linear-gradient(135deg, var(--white) 0%, rgba(74, 144, 226, 0.02) 100%);
}

.program-card.upcoming::before {
  background: linear-gradient(90deg, var(--accent-blue), var(--primary-blue));
}

.program-card.completed {
  opacity: 0.8;
  border-color: var(--gray-300);
}

.program-card.completed::before {
  background: var(--gray-400);
}

.program-meta {
  margin-top: 1.5rem;
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: center;
}

.fee {
  background: var(--success-green);
  color: var(--white);
  padding: 0.4rem 0.8rem;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 500;
}

.date, .location, .status, .type {
  background: var(--gray-100);
  color: var(--gray-700);
  padding: 0.4rem 0.8rem;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 500;
}

.type {
  background: var(--accent-blue);
  color: var(--white);
}

/* Program Notes Section */
.program-notes {
  margin-top: 3rem;
  background: var(--light-blue);
  padding: 2rem;
  border-radius: 12px;
  border-left: 4px solid var(--accent-blue);
}

.program-notes h4 {
  color: var(--primary-blue);
  font-size: 1.3rem;
  margin-bottom: 1rem;
  font-weight: 600;
}

.program-notes ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.program-notes li {
  padding: 0.75rem 0;
  padding-left: 1.5rem;
  position: relative;
  color: var(--gray-700);
  line-height: 1.6;
  border-bottom: 1px solid rgba(74, 144, 226, 0.1);
}

.program-notes li:last-child {
  border-bottom: none;
}

.program-notes li::before {
  content: "•";
  position: absolute;
  left: 0;
  color: var(--accent-blue);
  font-weight: bold;
  font-size: 1.2rem;
}

/* Product Sections */
.product-section {
  margin-bottom: 4rem;
  background: var(--white);
  border-radius: 16px;
  padding: 3rem;
  box-shadow: var(--shadow-md);
  border-left: 4px solid var(--accent-blue);
}

.product-section-title {
  font-size: 1.8rem;
  color: var(--primary-blue);
  margin-bottom: 2rem;
  text-align: center;
  font-weight: 600;
  position: relative;
}

.product-section-title::after {
  content: "";
  position: absolute;
  display: block;
  width: 60px;
  height: 3px;
  background: var(--accent-blue);
  left: 50%;
  transform: translateX(-50%);
  bottom: -8px;
}

/* Reagent Items */
.reagent-item {
  margin-bottom: 3rem;
  background: var(--light-blue);
  border-radius: 12px;
  padding: 2.5rem;
  transition: var(--transition-smooth);
}

.reagent-item:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.reagent-content {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 2rem;
  align-items: start;
}

.reagent-header h4 {
  color: var(--primary-blue);
  font-size: 1.4rem;
  margin-bottom: 1rem;
  font-weight: 600;
}

.reagent-image {
  width: 100%;
  max-width: 250px;
  border-radius: 8px;
  box-shadow: var(--shadow-sm);
  margin-top: 1rem;
}

.reagent-product {
  margin-bottom: 2rem;
}

.reagent-product h5 {
  color: var(--secondary-blue);
  font-size: 1.2rem;
  margin-bottom: 0.8rem;
  font-weight: 600;
}

.reagent-product p {
  color: var(--gray-700);
  line-height: 1.7;
  margin-bottom: 1rem;
}

.feature-list {
  list-style: none;
  margin: 1rem 0;
  padding: 0;
}

.feature-list li {
  padding: 0.5rem 0;
  padding-left: 1.5rem;
  position: relative;
  color: var(--gray-700);
  line-height: 1.6;
}

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

/* Supplies Grid */
.supplies-intro {
  background: var(--light-blue);
  padding: 1.5rem;
  border-radius: 8px;
  margin-bottom: 2rem;
  color: var(--gray-700);
  border-left: 3px solid var(--accent-blue);
}

.supplies-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin: 2rem 0;
}

.supply-item {
  background: var(--white);
  border-radius: 12px;
  padding: 2rem;
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: var(--transition-smooth);
  border: 2px solid var(--gray-200);
}

.supply-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--accent-blue);
}

.supply-image {
  width: 100%;
  max-width: 150px;
  height: 120px;
  object-fit: cover;
  border-radius: 8px;
  margin-bottom: 1rem;
}

.supply-item h4 {
  color: var(--primary-blue);
  font-size: 1.2rem;
  margin-bottom: 1rem;
  font-weight: 600;
}

.contact-note {
  background: var(--gray-100);
  padding: 1rem;
  border-radius: 8px;
  text-align: center;
  font-style: italic;
  color: var(--gray-600);
  margin-top: 2rem;
}

/* Nutraceuticals */
.nutraceuticals-intro {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: 2rem;
  align-items: center;
  margin-bottom: 2rem;
  background: var(--light-blue);
  padding: 2rem;
  border-radius: 12px;
}

.nutraceuticals-image {
  width: 100%;
  border-radius: 8px;
  box-shadow: var(--shadow-sm);
}

.nutraceuticals-content p {
  color: var(--gray-700);
  line-height: 1.7;
  font-size: 1.1rem;
}

.nutraceuticals-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}

.nutraceutical-item {
  background: var(--white);
  padding: 2rem;
  border-radius: 12px;
  box-shadow: var(--shadow-sm);
  transition: var(--transition-smooth);
  border: 2px solid var(--gray-200);
  border-left: 4px solid var(--success-green);
}

.nutraceutical-item:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: var(--success-green);
}

.nutraceutical-item h4 {
  color: var(--primary-blue);
  font-size: 1.3rem;
  margin-bottom: 1rem;
  font-weight: 600;
}

.nutraceutical-item p {
  color: var(--gray-700);
  line-height: 1.6;
}

/* Contact Section */
.contact-card {
  background: var(--white);
  padding: 3rem;
  border-radius: 16px;
  box-shadow: var(--shadow-md);
  text-align: center;
  margin-bottom: 3rem;
  border: 2px solid var(--accent-blue);
}

.contact-card h3 {
  color: var(--primary-blue);
  font-size: 1.8rem;
  margin-bottom: 1.5rem;
}

.address {
  margin-bottom: 1.5rem;
}

.address p {
  margin-bottom: 0.5rem;
  color: var(--gray-700);
}

.phone a {
  color: var(--accent-blue);
  text-decoration: none;
  font-weight: 500;
}

.phone a:hover {
  text-decoration: underline;
}

.affiliation {
  background: var(--light-blue);
  padding: 2rem;
  border-radius: 12px;
  border-left: 4px solid var(--accent-blue);
  font-style: italic;
  color: var(--gray-700);
}

/* Footer */
footer {
  background: var(--primary-blue);
  color: var(--white);
  text-align: center;
  padding: 2rem;
  margin-top: 4rem;
}

footer p {
  margin-bottom: 0.5rem;
  opacity: 0.9;
}

/* Responsive Design */
@media (max-width: 768px) {
  .hero {
    padding: 4rem 1rem 3rem;
  }
  
  .tabs {
    flex-wrap: wrap;
    justify-content: center;
  }
  
  .tab {
    padding: 1rem 1.5rem;
    font-size: 0.9rem;
  }
  
  .content-container {
    padding: 2rem 1rem;
  }
  
  .mission-statement,
  .value-proposition {
    padding: 2rem;
    margin-bottom: 2rem;
  }
  
  .value-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
  
  .programs-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
  
  .program-card {
    padding: 2rem;
  }
  
  .trust-indicators {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
  
  .contact-card {
    padding: 2rem;
  }
  
  /* Product Section Mobile */
  .product-section {
    padding: 2rem;
    margin-bottom: 2rem;
  }
  
  .reagent-content {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
  
  .reagent-image {
    max-width: 200px;
    margin: 0 auto;
    display: block;
  }
  
  .supplies-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
  
  .nutraceuticals-intro {
    grid-template-columns: 1fr;
    gap: 1.5rem;
    text-align: center;
  }
  
  .nutraceuticals-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
  
  /* Programs Section Mobile */
  .flagship-header {
    padding: 1.5rem;
    margin-bottom: 2rem;
  }
  
  .flagship-header h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
  }
  
  .programs-hero-image {
    max-width: 300px;
  }
  
  .program-notes {
    padding: 1.5rem;
    margin-top: 2rem;
  }
  
  .program-notes h4 {
    font-size: 1.2rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* Focus states for accessibility */
.tab:focus-visible {
  outline: 2px solid var(--accent-blue);
  outline-offset: 2px;
}

.phone a:focus-visible {
  outline: 2px solid var(--accent-blue);
  outline-offset: 2px;
}