/* Variables de Color y Tipografía Estilo Eco-Tech */
:root {
  --primary: #2ecc71;
  --primary-dark: #27ae60;
  --secondary: #0076ce;
  --dark: #1e293b;
  --light: #f8fafc;
  --gray: #64748b;
  --card-bg: #ffffff;
  --shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.08);
  --radius: 12px;
  --font-main: 'Segoe UI', system-ui, -apple-system, sans-serif;
}

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

body {
  font-family: var(--font-main);
  background-color: #f1f5f9;
  color: var(--dark);
  line-height: 1.6;
}

/* Header & Navegación */
.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.2rem 5%;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 2px 15px rgba(0,0,0,0.05);
}

.logo-container {
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo-icon {
  font-size: 1.8rem;
  color: var(--primary);
}

.logo-text {
  font-weight: 800;
  font-size: 1.4rem;
  color: var(--dark);
}

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

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

.nav-links a {
  text-decoration: none;
  color: var(--dark);
  font-weight: 600;
  transition: color 0.3s;
}

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

.cart-icon {
  position: relative;
  font-size: 1.3rem;
  color: var(--dark);
  cursor: pointer;
}

.cart-badge {
  position: absolute;
  top: -8px;
  right: -10px;
  background: var(--primary);
  color: white;
  font-size: 0.75rem;
  padding: 2px 6px;
  border-radius: 50%;
  font-weight: bold;
}

/* Hero Section */
.hero {
  background: linear-gradient(135deg, rgba(30, 41, 59, 0.85), rgba(0, 118, 206, 0.75)), 
              url('https://images.unsplash.com/photo-1509391365360-2e959784a276?auto=format&fit=crop&w=1600&q=80') center/cover;
  height: 80vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: white;
  padding: 0 20px;
}

.hero-content {
  max-width: 800px;
}

.badge-eco {
  background: rgba(46, 204, 113, 0.2);
  border: 1px solid var(--primary);
  color: #a7f3d0;
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 0.9rem;
  display: inline-block;
  margin-bottom: 1.5rem;
}

.hero h1 {
  font-size: 3rem;
  margin-bottom: 1rem;
  line-height: 1.2;
}

.hero p {
  font-size: 1.2rem;
  margin-bottom: 2rem;
  opacity: 0.9;
}

.hero-btns {
  display: flex;
  gap: 15px;
  justify-content: center;
}

.btn {
  padding: 12px 28px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
  transition: transform 0.2s, background-color 0.2s;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn-primary {
  background: var(--primary);
  color: white;
}

.btn-primary:hover {
  background: var(--primary-dark);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.2);
  color: white;
  backdrop-filter: blur(5px);
}

/* Contenedor General */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 5rem 20px;
}

/* Sección Nosotros */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

.about-text h2 {
  font-size: 2.2rem;
  margin-bottom: 1rem;
  color: var(--dark);
}

.mission-vision {
  margin-top: 1.5rem;
  padding: 1.5rem;
  background: white;
  border-left: 4px solid var(--primary);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.values-cards {
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
}

.value-card {
  background: white;
  padding: 1.5rem;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.value-card i {
  font-size: 1.8rem;
  color: var(--primary);
}

/* Tienda / Productos */
.section-title {
  text-align: center;
  margin-bottom: 3rem;
}

.section-title h2 {
  font-size: 2.2rem;
  color: var(--dark);
}

.section-title p {
  color: var(--gray);
}

.category-filters {
  display: flex;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 2.5rem;
}

.filter-btn {
  padding: 8px 18px;
  border: none;
  background: white;
  color: var(--dark);
  border-radius: 20px;
  font-weight: 600;
  cursor: pointer;
  box-shadow: var(--shadow);
  transition: all 0.3s;
}

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

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

.product-card {
  background: white;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  position: relative;
  display: flex;
  flex-direction: column;
  transition: transform 0.3s;
}

.product-card:hover {
  transform: translateY(-5px);
}

.product-tag {
  position: absolute;
  top: 12px;
  left: 12px;
  background: rgba(30, 41, 59, 0.8);
  color: white;
  font-size: 0.75rem;
  padding: 4px 10px;
  border-radius: 12px;
}

.product-img {
  height: 180px;
  background: #e2e8f0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.placeholder-icon {
  font-size: 3.5rem;
  color: var(--gray);
}

.product-info {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.product-info h3 {
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
}

.product-desc {
  font-size: 0.88rem;
  color: var(--gray);
  margin-bottom: 1.5rem;
  flex-grow: 1;
}

.product-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.price {
  font-weight: bold;
  color: var(--secondary);
}

.add-cart-btn {
  background: var(--dark);
  color: white;
  border: none;
  padding: 8px 14px;
  border-radius: 6px;
  cursor: pointer;
  font-weight: 600;
  transition: background 0.3s;
}

.add-cart-btn:hover {
  background: var(--primary);
}

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

.project-card {
  background: white;
  padding: 2.5rem;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  text-align: center;
}

.project-icon {
  font-size: 2.5rem;
  color: var(--secondary);
  margin-bottom: 1rem;
}

/* Footer */
footer {
  background: var(--dark);
  color: white;
  padding-top: 4rem;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 2rem;
  padding-bottom: 3rem;
}

.footer-col h3, .footer-col h4 {
  margin-bottom: 1rem;
}

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

.footer-col ul li {
  margin-bottom: 0.5rem;
  color: #94a3b8;
}

.footer-bottom {
  border-top: 1px solid #334155;
  text-align: center;
  padding: 1.5rem 0;
  color: #94a3b8;
  font-size: 0.9rem;
}

/* Responsive Design */
@media (max-width: 768px) {
  .about-grid {
    grid-template-columns: 1fr;
  }
  .hero h1 {
    font-size: 2.2rem;
  }
  .nav-links {
    display: none;
  }
}