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

:root {
  --primary-color: #1e3a5f;
  --secondary-color: #2c5282;
  --accent-color: #4a90e2;
  --light-bg: #f7fafc;
  --white: #ffffff;
  --text-dark: #2d3748;
  --text-light: #718096;
  --border-color: #e2e8f0;
  --whatsapp-green: #25d366;
}

body {
  font-family: "Roboto", sans-serif;
  color: var(--text-dark);
  line-height: 1.6;
  background-color: var(--white);
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: "Oswald", sans-serif;
  font-weight: 600;
  color: var(--primary-color);
}

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

/* Header & Navigation */
header {
  background-color: var(--white);
  box-shadow: 0 2px 10px rgba(30, 58, 95, 0.1);
  position: sticky;
  top: 0;
  z-index: 1000;
}

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

.logo {
  font-family: "Oswald", sans-serif;
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--primary-color);
  text-decoration: none;
  letter-spacing: 1px;
}

.logo span {
  font-size: 0.9rem;
  display: block;
  color: var(--text-light);
  font-weight: 400;
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 2.5rem;
}

.nav-links a {
  text-decoration: none;
  color: var(--text-dark);
  font-weight: 500;
  font-size: 1rem;
  transition: color 0.3s ease;
  position: relative;
}

.nav-links a::after {
  content: "";
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--accent-color);
  transition: width 0.3s ease;
}

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

.nav-links a:hover::after {
  width: 100%;
}

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

.nav-links a.active::after {
  width: 100%;
}

.menu-toggle {
  display: none;
  flex-direction: column;
  cursor: pointer;
  gap: 5px;
}

.menu-toggle span {
  width: 25px;
  height: 3px;
  background-color: var(--primary-color);
  transition: all 0.3s ease;
}

/* Page Header */
.page-header {
  background: linear-gradient(135deg, var(--light-bg) 0%, #e6f2ff 100%);
  padding: 80px 0 60px;
  text-align: center;
}

.page-header h1 {
  font-size: 3rem;
  margin-bottom: 1rem;
  letter-spacing: 2px;
}

.page-header p {
  font-size: 1.2rem;
  color: var(--text-light);
  max-width: 700px;
  margin: 0 auto;
}

/* Products Section */
.products-section {
  padding: 80px 0;
  background-color: var(--white);
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 2.5rem;
  margin-top: 3rem;
}

.product-card {
  background-color: var(--white);
  border-radius: 15px;
  overflow: hidden;
  transition: all 0.3s ease;
  border: 2px solid var(--border-color);
  display: flex;
  flex-direction: column;
}

.product-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 15px 40px rgba(30, 58, 95, 0.15);
  border-color: var(--accent-color);
}

.product-image {
  width: 100%;
  height: 250px;
  background: white;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.product-image img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.product-card:hover .product-image i {
  transform: scale(1.1);
}

.product-badge {
  position: absolute;
  top: 15px;
  right: 15px;
  background-color: var(--primary-color);
  color: var(--white);
  padding: 5px 15px;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 600;
}

.product-content {
  padding: 2rem;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}

.product-content h3 {
  font-size: 1.8rem;
  margin-bottom: 1rem;
}

.product-content p {
  color: var(--text-light);
  margin-bottom: 1.5rem;
  line-height: 1.8;
  flex-grow: 1;
}

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

.product-features li {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  margin-bottom: 0.8rem;
  color: var(--text-dark);
  font-size: 0.95rem;
}

.product-features i {
  color: var(--whatsapp-green);
  font-size: 0.9rem;
}

/* Button container */
.button-container {
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
}

/* Details button - now behaves like PDF link */
.details-button {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.8rem;
  background-color: var(--light-bg);
  color: var(--primary-color);
  padding: 12px 25px;
  text-decoration: none;
  border: 2px solid var(--primary-color);
  border-radius: 8px;
  font-weight: 600;
  font-size: 1rem;
  transition: all 0.3s ease;
  cursor: pointer;
  width: 100%;
  font-family: inherit;
}

.details-button:hover {
  background-color: var(--primary-color);
  color: var(--white);
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(30, 58, 95, 0.2);
}

.details-button i {
  font-size: 1.1rem;
}

.whatsapp-button {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.8rem;
  background-color: var(--whatsapp-green);
  color: var(--white);
  padding: 15px 25px;
  text-decoration: none;
  border-radius: 8px;
  font-weight: 600;
  font-size: 1.05rem;
  transition: all 0.3s ease;
  box-shadow: 0 4px 15px rgba(37, 211, 102, 0.3);
}

.whatsapp-button:hover {
  background-color: #20ba5a;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(37, 211, 102, 0.4);
}

.whatsapp-button i {
  font-size: 1.3rem;
}

/* Categories Filter (optional) */
.categories {
  text-align: center;
  margin-bottom: 3rem;
}

.category-buttons {
  display: flex;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
  margin-top: 2rem;
}

.category-btn {
  padding: 12px 30px;
  background-color: var(--light-bg);
  color: var(--text-dark);
  border: 2px solid var(--border-color);
  border-radius: 25px;
  cursor: pointer;
  font-weight: 500;
  font-size: 1rem;
  transition: all 0.3s ease;
}

.category-btn:hover,
.category-btn.active {
  background-color: var(--primary-color);
  color: var(--white);
  border-color: var(--primary-color);
}

/* Footer */
footer {
  background-color: var(--primary-color);
  color: var(--white);
  padding: 3rem 0 1.5rem;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 3rem;
  margin-bottom: 2rem;
}

.footer-section h3 {
  color: var(--white);
  margin-bottom: 1.5rem;
  font-size: 1.5rem;
}

.footer-section p,
.footer-section a {
  color: rgba(255, 255, 255, 0.8);
  text-decoration: none;
  line-height: 2;
}

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

.social-links {
  display: flex;
  gap: 1rem;
  margin-top: 1rem;
}

.social-links a {
  width: 40px;
  height: 40px;
  background-color: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
}

.social-links a:hover {
  background-color: var(--accent-color);
}

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

/* Responsive Design */
@media (max-width: 768px) {
  .menu-toggle {
    display: flex;
  }

  .nav-links {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--white);
    flex-direction: column;
    gap: 0;
    padding: 1rem 0;
    box-shadow: 0 5px 15px rgba(30, 58, 95, 0.1);
    display: none;
  }

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

  .nav-links li {
    padding: 1rem 2rem;
    border-bottom: 1px solid var(--border-color);
  }

  .nav-links a::after {
    display: none;
  }

  .page-header h1 {
    font-size: 2.2rem;
  }

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

  .category-buttons {
    flex-direction: column;
    align-items: center;
  }

  .category-btn {
    width: 100%;
    max-width: 300px;
  }

  .footer-content {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .social-links {
    justify-content: center;
  }
}