:root {
  --primary-color: #004d99; /* Azul corporativo fuerte */
  --primary-light: #337acc;
  --primary-dark: #003366;
  --accent-color: #ff6600; /* Naranja industrial */
  --accent-hover: #e65c00;
  --text-dark: #333333;
  --text-light: #ffffff;
  --bg-light: #f8f9fa;
  --border-color: #dee2e6;
}

body {
  font-family: 'Inter', 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  color: var(--text-dark);
  background-color: #ffffff;
}

/* --- Top Bar --- */
.top-bar {
  background-color: var(--primary-dark);
  color: var(--text-light);
  font-size: 0.85rem;
  padding: 5px 0;
}
.top-bar a {
  color: var(--text-light);
  text-decoration: none;
  transition: opacity 0.3s ease;
}
.top-bar a:hover {
  opacity: 0.8;
}

/* --- Navbar --- */
.navbar {
  box-shadow: 0 2px 10px rgba(0,0,0,0.1);
  padding: 1rem 0;
}
.navbar-brand {
  font-weight: 800;
  color: var(--primary-color) !important;
  font-size: 1.8rem;
}

/* --- Navbar Logo --- */
.navbar-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}
.navbar-logo {
  height: 46px; /* desktop */
  width: auto;
  object-fit: contain;
  display: inline-block;
}
@media (max-width: 576px) {
  .navbar-logo { height: 36px; }
}
.nav-link {
  color: var(--text-dark) !important;
  font-weight: 500;
  margin: 0 10px;
  transition: color 0.3s ease;
}
.nav-link:hover, .nav-link.active {
  color: var(--primary-color) !important;
}

/* --- Buttons --- */
.btn {
  transition: all 0.3s ease;
}
.btn-primary {
  background-color: var(--primary-color);
  border-color: var(--primary-color);
}
.btn-primary:hover {
  background-color: var(--primary-dark);
  border-color: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(0,0,0,0.2);
}
.btn-accent {
  background-color: var(--accent-color);
  border-color: var(--accent-color);
  color: white;
  font-weight: 600;
}
.btn-accent:hover {
  background-color: var(--accent-hover);
  border-color: var(--accent-hover);
  color: white;
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(255, 102, 0, 0.3);
}

/* --- Cards / Features --- */
.feature-card {
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 30px;
  text-align: center;
  transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
  height: 100%;
  background-color: #fff;
}
.feature-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 15px 35px rgba(0,0,0,0.1);
  border-color: var(--primary-light);
}
.feature-icon {
  font-size: 3rem;
  color: var(--primary-color);
  margin-bottom: 20px;
  transition: transform 0.3s ease;
}
.feature-card:hover .feature-icon {
  transform: scale(1.1);
}

/* --- Navbar Dropdown Animation --- */
@media (min-width: 992px) {
  .dropdown-menu {
    display: block;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all 0.3s ease;
  }
  .nav-item.dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }
}

/* --- Gallery & Product Images --- */
.gallery-img, .product-img {
  transition: transform 0.5s ease;
}
.card:hover .gallery-img, .card:hover .product-img {
  transform: scale(1.05);
}
.card {
  overflow: hidden;
  transition: all 0.3s ease;
}
.card:hover {
  box-shadow: 0 10px 25px rgba(0,0,0,0.1) !important;
}
.btn-primary:hover {
  background-color: var(--primary-dark);
  border-color: var(--primary-dark);
}
.btn-accent {
  background-color: var(--accent-color);
  border-color: var(--accent-color);
  color: white;
  font-weight: 600;
}
.btn-accent:hover {
  background-color: var(--accent-hover);
  border-color: var(--accent-hover);
  color: white;
}

/* --- Hero Section --- */
.hero {
  background: linear-gradient(rgba(0, 51, 102, 0.6), rgba(0, 51, 102, 0.6)), url('../assets/camion-cargado.jpg') center/cover no-repeat;
  color: white;
  padding: 140px 0;
  text-align: center;
}
.hero h1 {
  font-weight: 800;
  font-size: 3.5rem;
  margin-bottom: 20px;
}
.hero p {
  font-size: 1.25rem;
  margin-bottom: 30px;
}

/* --- Cards / Features --- */
.feature-card {
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 30px;
  text-align: center;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  height: 100%;
}
.feature-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 20px rgba(0,0,0,0.1);
}
.feature-icon {
  font-size: 3rem;
  color: var(--primary-color);
  margin-bottom: 20px;
}

/* --- Section Titles --- */
.section-title {
  color: var(--primary-dark);
  font-weight: 700;
  margin-bottom: 40px;
  position: relative;
  display: inline-block;
}
.section-title::after {
  content: '';
  width: 60px;
  height: 3px;
  background-color: var(--accent-color);
  position: absolute;
  bottom: -10px;
  left: 0;
}
.text-center .section-title::after {
  left: 50%;
  transform: translateX(-50%);
}

/* --- Footer --- */
footer {
  background-color: var(--text-dark);
  color: white;
  padding: 60px 0 20px;
}
footer h5 {
  color: var(--accent-color);
  font-weight: 600;
  margin-bottom: 20px;
}
footer a {
  color: #cccccc;
  text-decoration: none;
  transition: color 0.3s ease;
}
footer a:hover {
  color: var(--accent-color);
}
.footer-bottom {
  margin-top: 40px;
  padding-top: 20px;
  border-top: 1px solid rgba(255,255,255,0.1);
  font-size: 0.9rem;
  color: #999999;
}