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

body {
  font-family: 'Inter', sans-serif;
  line-height: 1.6;
  color: #222;
  background-color: #fff;
  font-size: 16px;
}

.container {
  width: 90%;
  max-width: 1100px;
  margin: 0 auto;
}

/* Header */
.site-header {
  border-bottom: 1px solid #eee;
  padding: 1rem 0;
  background-color: #fafafa;
  position: sticky;
  top: 0;
  z-index: 10;
}

.logo {
  font-weight: 700;
  font-size: 1.5rem;
  color: #111;
}

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

.nav a {
  text-decoration: none;
  color: #444;
  font-weight: 500;
  transition: color 0.3s ease;
}

.nav a:hover {
  color: #0077ff;
}

/* Hero */
.hero {
  background-color: #f5faff;
  text-align: center;
  padding: 5rem 1rem 4rem;
  color: #0a2540;
}

.hero h2 {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.hero p {
  font-size: 1.125rem;
  margin-bottom: 2rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
  color: #445566;
}

.btn-primary {
  background-color: #0077ff;
  color: white;
  font-weight: 600;
  padding: 0.75rem 2rem;
  border-radius: 30px;
  cursor: pointer;
  text-decoration: none;
  box-shadow: 0 4px 14px rgba(0, 119, 255, 0.3);
  transition: background-color 0.3s ease;
  display: inline-block;
}

.btn-primary:hover {
  background-color: #005fcc;
}

/* Products */
.products {
  padding: 4rem 0 6rem;
  text-align: center;
  background-color: #fff;
}

.products h3 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 3rem;
  color: #111;
}

.products-grid {
  display: grid;
  gap: 2.5rem;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  justify-items: center;
}

.product-card {
  background-color: #f9fafb;
  border-radius: 12px;
  box-shadow: 0 4px 15px rgba(0,0,0,0.05);
  overflow: hidden;
  max-width: 280px;
  display: flex;
  flex-direction: column;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.product-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 10px 25px rgba(0,0,0,0.12);
}

.product-card img {
  width: 100%;
  height: 180px;
  object-fit: cover;
  border-bottom: 1px solid #eee;
}

.product-card h4 {
  font-size: 1.25rem;
  font-weight: 600;
  margin: 1rem;
  color: #222;
}

.product-card p {
  font-size: 0.95rem;
  color: #555;
  margin: 0 1rem 1.25rem;
  flex-grow: 1;
}

/* Footer */
.site-footer {
  text-align: center;
  padding: 2rem 1rem;
  border-top: 1px solid #eee;
  font-size: 0.9rem;
  color: #666;
  background-color: #fafafa;
  user-select: none;
}

/* Responsive */
@media (max-width: 600px) {
  .hero h2 {
    font-size: 1.9rem;
  }

  .hero p {
    font-size: 1rem;
  }

  .nav ul {
    gap: 1rem;
  }

  .product-card img {
    height: 140px;
  }
}