/* BioS Peptides - Official E-commerce Styles */

:root {
  --primary-blue: #2B6FFF;
  --black: #000000;
  --white: #ffffff;
  --light-gray: #f5f7fa;
  --medium-gray: #e1e8ed;
  --text-gray: #4a5568;
  --border-gray: #cbd5e0;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  color: var(--black);
  line-height: 1.6;
  background: var(--white);
}

/* Header */
header {
  background: var(--white);
  color: var(--black);
  padding: 0;
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
  border-bottom: 1px solid var(--border-gray);
}

.header-top {
  background: var(--primary-blue);
  padding: 8px 0;
  font-size: 0.85rem;
  text-align: center;
  color: var(--white);
}

.header-main {
  padding: 1rem 0;
}

.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 20px;
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 2rem;
}

.logo {
  display: flex;
  align-items: center;
  text-decoration: none;
  color: var(--black);
}

.logo img {
  height: 60px;
  width: auto;
}

/* Search Bar */
.search-bar {
  flex: 1;
  max-width: 600px;
}

.search-form {
  display: flex;
  background: var(--white);
  border-radius: 4px;
  overflow: hidden;
  border: 2px solid var(--border-gray);
}

.search-input {
  flex: 1;
  padding: 12px 16px;
  border: none;
  font-size: 1rem;
  outline: none;
}

.search-btn {
  background: var(--primary-blue);
  color: var(--white);
  border: none;
  padding: 0 24px;
  cursor: pointer;
  font-weight: 600;
  transition: background 0.2s;
}

.search-btn:hover {
  background: #1a5ae6;
}

/* Header Actions */
.header-actions {
  display: flex;
  gap: 1.5rem;
  align-items: center;
}

.header-link {
  color: var(--black);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.95rem;
  transition: color 0.2s;
  font-weight: 500;
}

.header-link:hover {
  color: var(--primary-blue);
}

.cart-count {
  background: var(--primary-blue);
  color: var(--white);
  border-radius: 50%;
  width: 20px;
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 700;
}

/* Navigation */
nav {
  background: var(--light-gray);
  border-top: 1px solid var(--border-gray);
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 2rem;
  padding: 0;
  margin: 0;
}

.nav-links li a {
  color: var(--black);
  text-decoration: none;
  padding: 1rem 0;
  display: block;
  font-weight: 500;
  font-size: 0.95rem;
  transition: color 0.2s;
}

.nav-links li a:hover {
  color: var(--primary-blue);
}

/* Hero Banner */
.hero {
  background: linear-gradient(135deg, var(--primary-blue) 0%, #1a5ae6 100%);
  color: var(--white);
  padding: 4rem 0;
  text-align: center;
}

.hero h1 {
  font-size: 3rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.hero p {
  font-size: 1.25rem;
  opacity: 0.95;
  margin-bottom: 2rem;
}

.hero-cta {
  background: var(--white);
  color: var(--primary-blue);
  padding: 14px 32px;
  border-radius: 4px;
  text-decoration: none;
  font-weight: 600;
  display: inline-block;
  transition: transform 0.2s, box-shadow 0.2s;
}

.hero-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0,0,0,0.2);
}

/* RUO Disclaimer */
.ruo-disclaimer {
  background: #fff3cd;
  border-left: 4px solid #ff9800;
  padding: 1rem;
  margin: 2rem 0;
  color: #856404;
  font-weight: 500;
  font-size: 0.95rem;
}

/* Section Headers */
.section {
  padding: 3rem 0;
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2rem;
}

.section-header h2 {
  font-size: 2rem;
  color: var(--black);
}

.view-all {
  color: var(--primary-blue);
  text-decoration: none;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.view-all:hover {
  text-decoration: underline;
}

/* Product Grid */
.catalog-layout {
  display: grid;
  grid-template-columns: 250px 1fr;
  gap: 2rem;
  margin: 2rem 0;
}

.sidebar {
  background: var(--light-gray);
  padding: 1.5rem;
  border-radius: 8px;
  height: fit-content;
  position: sticky;
  top: 100px;
}

.sidebar h3 {
  font-size: 1.25rem;
  margin-bottom: 1rem;
  color: var(--black);
}

.category-list {
  list-style: none;
}

.category-list li {
  margin-bottom: 0.75rem;
}

.category-list button {
  background: none;
  border: none;
  color: var(--text-gray);
  cursor: pointer;
  font-size: 1rem;
  padding: 0.5rem 0;
  width: 100%;
  text-align: left;
  transition: color 0.2s;
  font-weight: 500;
}

.category-list button:hover,
.category-list button.active {
  color: var(--primary-blue);
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 2rem;
}

/* Product Cards */
.product-card {
  background: var(--white);
  border: 1px solid var(--border-gray);
  border-radius: 8px;
  overflow: hidden;
  transition: transform 0.2s, box-shadow 0.2s;
  cursor: pointer;
  display: flex;
  flex-direction: column;
}

.product-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 20px rgba(43, 111, 255, 0.15);
}

.product-image {
  width: 100%;
  height: 240px;
  object-fit: cover;
  background: linear-gradient(135deg, var(--light-gray) 0%, #e8f0ff 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 4rem;
  color: var(--primary-blue);
}

.product-info {
  padding: 1.25rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.product-category {
  font-size: 0.75rem;
  color: var(--text-gray);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 0.5rem;
}

.product-sku {
  font-size: 0.85rem;
  color: var(--primary-blue);
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.product-name {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--black);
  margin-bottom: 0.5rem;
}

.product-strength {
  font-size: 0.9rem;
  color: var(--text-gray);
  margin-bottom: 0.75rem;
}

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

.add-to-cart {
  background: var(--primary-blue);
  color: var(--white);
  border: none;
  padding: 12px;
  border-radius: 4px;
  cursor: pointer;
  font-weight: 600;
  font-size: 1rem;
  transition: background 0.2s;
  width: 100%;
}

.add-to-cart:hover {
  background: #1a5ae6;
}

/* Product Carousel */
.product-carousel {
  position: relative;
  overflow: hidden;
  margin: 0 -10px;
}

.carousel-track {
  display: flex;
  gap: 1.5rem;
  overflow-x: auto;
  scroll-behavior: smooth;
  padding: 0 10px 1rem;
  scrollbar-width: thin;
  scrollbar-color: var(--primary-blue) var(--light-gray);
}

.carousel-track::-webkit-scrollbar {
  height: 8px;
}

.carousel-track::-webkit-scrollbar-track {
  background: var(--light-gray);
  border-radius: 4px;
}

.carousel-track::-webkit-scrollbar-thumb {
  background: var(--primary-blue);
  border-radius: 4px;
}

.carousel-track .product-card {
  flex: 0 0 300px;
}

/* Product Detail Page */
.product-detail {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  margin: 3rem 0;
}

.product-detail-image {
  background: linear-gradient(135deg, var(--light-gray) 0%, #e8f0ff 100%);
  border-radius: 8px;
  aspect-ratio: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 8rem;
  color: var(--primary-blue);
}

.product-detail-info h1 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.product-detail-meta {
  display: flex;
  gap: 2rem;
  margin: 1.5rem 0;
  padding: 1.5rem;
  background: var(--light-gray);
  border-radius: 8px;
}

.meta-item h4 {
  font-size: 0.85rem;
  color: var(--text-gray);
  margin-bottom: 0.25rem;
}

.meta-item p {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--black);
}

.product-detail-price {
  font-size: 3rem;
  font-weight: 700;
  color: var(--primary-blue);
  margin: 1.5rem 0;
}

.product-detail-description {
  margin: 2rem 0;
  line-height: 1.8;
  color: var(--text-gray);
}

.product-detail-actions {
  display: flex;
  gap: 1rem;
  margin-top: 2rem;
}

.product-detail-actions .add-to-cart {
  flex: 1;
  padding: 16px;
  font-size: 1.1rem;
}

.whatsapp-btn {
  background: #25D366;
  color: var(--white);
  border: none;
  padding: 16px 24px;
  border-radius: 4px;
  cursor: pointer;
  font-weight: 600;
  font-size: 1.1rem;
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  transition: background 0.2s;
}

.whatsapp-btn:hover {
  background: #1faa52;
}

/* Cart */
.cart-page {
  margin: 3rem 0;
}

.cart-empty {
  text-align: center;
  padding: 4rem 0;
}

.cart-empty h2 {
  font-size: 2rem;
  margin-bottom: 1rem;
  color: var(--text-gray);
}

.cart-items {
  margin-bottom: 2rem;
}

.cart-item {
  display: grid;
  grid-template-columns: 100px 1fr auto;
  gap: 1.5rem;
  padding: 1.5rem;
  background: var(--white);
  border: 1px solid var(--border-gray);
  border-radius: 8px;
  margin-bottom: 1rem;
}

.cart-item-image {
  width: 100px;
  height: 100px;
  background: linear-gradient(135deg, var(--light-gray) 0%, #e8f0ff 100%);
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  color: var(--primary-blue);
}

.cart-item-info h3 {
  margin-bottom: 0.5rem;
}

.cart-item-meta {
  color: var(--text-gray);
  font-size: 0.9rem;
}

.cart-item-actions {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  justify-content: space-between;
}

.cart-item-price {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary-blue);
}

.quantity-controls {
  display: flex;
  align-items: center;
  gap: 1rem;
  background: var(--light-gray);
  padding: 0.5rem 1rem;
  border-radius: 4px;
}

.quantity-btn {
  background: var(--white);
  border: 1px solid var(--border-gray);
  width: 32px;
  height: 32px;
  border-radius: 4px;
  cursor: pointer;
  font-weight: 600;
  transition: background 0.2s;
}

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

.remove-btn {
  background: none;
  border: none;
  color: #dc3545;
  cursor: pointer;
  font-size: 0.9rem;
  text-decoration: underline;
}

.cart-summary {
  background: var(--light-gray);
  padding: 2rem;
  border-radius: 8px;
  max-width: 400px;
  margin-left: auto;
}

.cart-summary h2 {
  margin-bottom: 1.5rem;
}

.summary-row {
  display: flex;
  justify-content: space-between;
  margin-bottom: 1rem;
  font-size: 1.1rem;
}

.summary-total {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary-blue);
  border-top: 2px solid var(--border-gray);
  padding-top: 1rem;
  margin-top: 1rem;
}

.checkout-btn {
  width: 100%;
  background: var(--primary-blue);
  color: var(--white);
  border: none;
  padding: 16px;
  border-radius: 4px;
  font-size: 1.1rem;
  font-weight: 600;
  cursor: pointer;
  margin-top: 1.5rem;
  transition: background 0.2s;
}

.checkout-btn:hover {
  background: #1a5ae6;
}

/* Footer */
footer {
  background: var(--black);
  color: var(--white);
  padding: 3rem 0 1rem;
  margin-top: 4rem;
}

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

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

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

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

.footer-section a {
  color: rgba(255,255,255,0.8);
  text-decoration: none;
  transition: color 0.2s;
}

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

.footer-section p {
  color: rgba(255,255,255,0.8);
  line-height: 1.6;
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 2rem;
  text-align: center;
  color: rgba(255,255,255,0.6);
  font-size: 0.9rem;
}

.footer-disclaimer {
  background: rgba(255,255,255,0.05);
  padding: 1.5rem;
  border-radius: 8px;
  margin-bottom: 2rem;
  font-size: 0.85rem;
  line-height: 1.6;
  color: rgba(255,255,255,0.7);
}

/* About & Contact Pages */
.page-header {
  background: var(--primary-blue);
  color: var(--white);
  padding: 3rem 0;
  margin-bottom: 3rem;
}

.page-header h1 {
  font-size: 3rem;
}

.content-section {
  max-width: 900px;
  margin: 0 auto 3rem;
}

.content-section h2 {
  font-size: 2rem;
  margin-bottom: 1rem;
  color: var(--black);
}

.content-section p {
  margin-bottom: 1rem;
  line-height: 1.8;
  color: var(--text-gray);
}

.contact-form {
  max-width: 600px;
  margin: 2rem auto;
}

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

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 600;
  color: var(--black);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 12px;
  border: 1px solid var(--border-gray);
  border-radius: 4px;
  font-size: 1rem;
  font-family: inherit;
}

.form-group textarea {
  min-height: 150px;
  resize: vertical;
}

.submit-btn {
  background: var(--primary-blue);
  color: var(--white);
  border: none;
  padding: 14px 32px;
  border-radius: 4px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s;
}

.submit-btn:hover {
  background: #1a5ae6;
}

/* Responsive Design */
@media (max-width: 1024px) {
  .catalog-layout {
    grid-template-columns: 200px 1fr;
  }
  
  .product-detail {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .header-content {
    flex-direction: column;
    gap: 1rem;
  }
  
  .search-bar {
    width: 100%;
    max-width: none;
  }
  
  .nav-links {
    flex-wrap: wrap;
    gap: 1rem;
    justify-content: center;
  }
  
  .hero h1 {
    font-size: 2rem;
  }
  
  .hero p {
    font-size: 1rem;
  }
  
  .catalog-layout {
    grid-template-columns: 1fr;
  }
  
  .sidebar {
    position: static;
  }
  
  .product-grid {
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 1.5rem;
  }
  
  .cart-item {
    grid-template-columns: 80px 1fr;
  }
  
  .cart-item-actions {
    grid-column: 2;
    flex-direction: row;
    align-items: center;
  }
  
  .footer-content {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .product-grid {
    grid-template-columns: 1fr;
  }
  
  .cart-item {
    grid-template-columns: 1fr;
  }
  
  .cart-item-image {
    width: 100%;
    height: 200px;
  }
}