/* =========================
  Base / Variables
========================= */
:root {
  --azul-principal: #0a3a5c;
  --azul-oscuro: #062a45;
  --celeste: #7ec8e3;
  --blanco: #ffffff;
  --gris-claro: #f7f9fc;
  --gris-texto: #2d3748;
  --gris-medio: #718096;

  --shadow-sm: 0 2px 10px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 2px 10px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 5px 20px rgba(0, 0, 0, 0.15);

  --radius-sm: 5px;
  --radius-md: 10px;
  --radius-pill: 999px;
}

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

img {
  max-width: 100%;
  height: auto;
  display: block;
}

body {
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  color: var(--gris-texto);
  line-height: 1.6;
}

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

section {
  padding: 80px 0;
}

.section-title {
  text-align: center;
  font-size: 2.5rem;
  color: var(--azul-principal);
  margin-bottom: 3rem;
}

.section-lead {
  text-align: center;
  max-width: 700px;
  margin: -2rem auto 3rem;
  color: var(--gris-medio);
}

/* =========================
  Header / Navegación
========================= */
header {
  background: var(--azul-principal);
  padding: 1rem 0;
  position: fixed;
  width: 100%;
  top: 0;
  z-index: 1000;
  box-shadow: var(--shadow-md);
}

nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  height: 50px;
}

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

.nav-links a {
  color: var(--blanco);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.3s;
}

.nav-links a:hover,
.nav-active {
  color: var(--celeste) !important;
  font-weight: 700 !important;
}

.menu-toggle {
  display: none;
  color: var(--blanco);
  font-size: 1.5rem;
  cursor: pointer;
  user-select: none;
  background: transparent;
  border: 0;
}

/* =========================
  Hero (principal)
========================= */
.hero {
  background: linear-gradient(
    135deg,
    var(--azul-principal) 0%,
    var(--azul-oscuro) 100%
  );
  color: var(--blanco);
  padding: 140px 0 100px;
  text-align: center;
}

/* Hero reducido para páginas internas */
.hero-catalogo {
  padding: 120px 0 60px;
}

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

.hero .slogan {
  font-size: 1.5rem;
  color: var(--celeste);
  margin-bottom: 1rem;
}

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

.btn {
  display: inline-block;
  padding: 15px 40px;
  background: var(--celeste);
  color: var(--azul-principal);
  text-decoration: none;
  border-radius: 50px;
  font-weight: 600;
  transition: all 0.3s;
  margin: 0 10px;
}

.btn:hover {
  background: var(--blanco);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-outline {
  background: transparent;
  border: 2px solid var(--celeste);
  color: var(--celeste);
}

.btn-outline:hover {
  background: var(--celeste);
  color: var(--azul-principal);
}

/* =========================
  Marcas (cuadrados perfectos + alineación)
========================= */
.marcas {
  background: var(--gris-claro);
}

.marcas-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
  gap: 2rem;
  align-items: stretch;
}

/* Cuadrado perfecto 1:1 */
.marca-item {
  background: var(--blanco);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  padding: 1.25rem;

  aspect-ratio: 1 / 1;
  width: 100%;

  display: grid;
  grid-template-rows: 1fr auto;
  justify-items: center;
  align-items: center;
  row-gap: 14px;

  text-align: center;
  font-weight: 700;
  color: var(--azul-principal);
  font-size: 1.05rem;
}

/* Slot fijo para logo */
.marca-logo {
  width: 100%;
  height: 92px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.marca-logo img {
  max-height: 92px;
  max-width: 140px;
  width: auto;
  height: auto;
  object-fit: contain;
  margin: 0;
}

/* =========================
  Stats / Trayectoria
========================= */
.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.stat-item {
  text-align: center;
  padding: 2rem;
}

.stat-number {
  font-size: 3rem;
  color: var(--azul-principal);
  font-weight: 700;
}

.stat-label {
  color: var(--gris-medio);
  font-size: 1.1rem;
}

.stats-note {
  text-align: center;
  font-size: 1.1rem;
  color: var(--gris-medio);
  margin-top: 1.5rem;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

/* =========================
  Historia
========================= */
.historia {
  background: var(--gris-claro);
}

.historia-content {
  max-width: 800px;
  margin: 0 auto;
  font-size: 1.1rem;
  line-height: 1.8;
}

.historia-content p {
  margin-bottom: 1.5rem;
}

.historia-content p:last-child {
  margin-bottom: 0;
}

/* =========================
  Cobertura
========================= */
.ciudades-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
  margin: 3rem 0;
}

.zona-card {
  background: var(--gris-claro);
  padding: 1.5rem;
  border-radius: var(--radius-md);
  border-left: 4px solid var(--celeste);
}

.zona-card h3 {
  color: var(--azul-principal);
  margin-bottom: 0.5rem;
}

.condiciones {
  background: var(--azul-principal);
  color: var(--blanco);
  padding: 2rem;
  border-radius: var(--radius-md);
  margin-top: 2rem;
}

.condiciones-title {
  text-align: center;
  margin-bottom: 1rem;
}

.condiciones-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
  margin-top: 1.5rem;
}

.condicion-item h4 {
  color: var(--celeste);
  margin-bottom: 0.5rem;
}

/* =========================
  Clientes
========================= */
.clientes {
  background: var(--gris-claro);
}

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

.cliente-card {
  background: var(--blanco);
  padding: 2rem;
  border-radius: var(--radius-md);
  text-align: center;
  transition: transform 0.3s;
  box-shadow: var(--shadow-sm);
}

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

.cliente-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
}

.cliente-card h3 {
  color: var(--azul-principal);
  margin-bottom: 1rem;
}

.beneficios-title {
  text-align: center;
  color: var(--azul-principal);
  margin-bottom: 2rem;
}

.beneficios-list {
  list-style: none;
  max-width: 600px;
  margin: 0 auto;
}

.beneficios-list li {
  padding: 1rem;
  padding-left: 2.5rem;
  position: relative;
  border-bottom: 1px solid #e2e8f0;
}

.beneficios-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--azul-principal);
  font-weight: bold;
  font-size: 1.2rem;
}

/* =========================
  Catálogo / Productos
========================= */

/* Página propia del catálogo */
.catalogo-page {
  padding: 60px 0 80px;
}

.filtros {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 3rem;
  flex-wrap: wrap;
}

.filtro-btn {
  padding: 10px 25px;
  border: 2px solid var(--azul-principal);
  background: transparent;
  color: var(--azul-principal);
  border-radius: 25px;
  cursor: pointer;
  transition: all 0.3s;
  font-weight: 500;
}

.filtro-btn:hover,
.filtro-btn.active {
  background: var(--azul-principal);
  color: var(--blanco);
}

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

.producto-card {
  background: var(--blanco);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: transform 0.3s, box-shadow 0.3s;

  /* Misma altura para todas las cards */
  display: flex;
  flex-direction: column;
}

.producto-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

/*
  Área de imagen: aspect-ratio 3:2 (ideal para fotos 600×400)
  object-fit: cover → rellena sin deformar, recorta lo justo
*/
.producto-img {
  width: 100%;
  aspect-ratio: 3 / 2;         /* 600×400 encaja perfecto */
  background: var(--gris-claro);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gris-medio);
  font-size: 0.9rem;
  flex-shrink: 0;               /* no se comprime */
}

.producto-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;            /* rellena sin deformar */
  object-position: center;      /* centra el recorte */
  display: block;
  transition: transform 0.4s;   /* zoom sutil al hover */
}

.producto-card:hover .producto-img img {
  transform: scale(1.04);       /* zoom suave al pasar el mouse */
}

.producto-info {
  padding: 1.5rem;
  flex: 1;                      /* empuja el botón al fondo */
  display: flex;
  flex-direction: column;
}

.producto-marca {
  color: var(--celeste);
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.producto-nombre {
  font-size: 1.15rem;
  color: var(--azul-principal);
  margin: 0.4rem 0 0.3rem;
  font-weight: 600;
  line-height: 1.3;
}

.producto-presentacion {
  color: var(--gris-medio);
  font-size: 0.9rem;
  margin-bottom: 1rem;
  flex: 1;                      /* empuja botón al fondo de .producto-info */
}

.btn-consultar {
  display: block;
  text-align: center;
  padding: 10px;
  background: var(--azul-principal);
  color: var(--blanco);
  text-decoration: none;
  border-radius: var(--radius-sm);
  font-weight: 600;
  transition: background 0.3s;
  margin-top: auto;
}

.btn-consultar:hover {
  background: var(--azul-oscuro);
}

/* =========================
  Contacto (formulario + barra plana derecha)
========================= */
.contacto {
  background: var(--gris-claro);
}

.contacto-split {
  display: grid;
  grid-template-columns: minmax(320px, 720px) 1fr;
  gap: 2rem;
  align-items: stretch;
}

.formulario {
  background: var(--blanco);
  padding: 3rem;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}

.form-title {
  color: var(--azul-principal);
  margin-bottom: 1.5rem;
  font-size: 1.5rem;
}

.form-lead {
  color: var(--gris-medio);
  margin-bottom: 2rem;
}

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

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  color: var(--azul-principal);
  font-weight: 500;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 12px;
  border: 1px solid #cbd5e0;
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 1rem;
  transition: border-color 0.3s;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--celeste);
}

.btn-submit {
  width: 100%;
  padding: 15px;
  background: var(--azul-principal);
  color: var(--blanco);
  border: none;
  border-radius: var(--radius-sm);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.3s;
}

.btn-submit:hover {
  background: var(--azul-oscuro);
}

/* Barra decorativa plana derecha */
.contacto-barra {
  background: var(--azul-principal);
  border-radius: var(--radius-md);
  min-height: 520px;
}

/* =========================
  Footer
========================= */
footer {
  background: var(--azul-oscuro);
  color: var(--blanco);
  padding: 4rem 0 2rem;
}

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

.footer-col h4 {
  color: var(--celeste);
  margin-bottom: 1.2rem;
  font-size: 1.2rem;
}

.footer-col p {
  font-size: 0.95rem;
  opacity: 0.85;
  line-height: 1.7;
}

.footer-col ul {
  list-style: none;
  padding: 0;
}

.footer-col ul li {
  margin-bottom: 0.8rem;
}

.footer-col ul li a {
  color: var(--blanco);
  text-decoration: none;
  transition: color 0.3s;
}

.footer-col ul li a:hover {
  color: var(--celeste);
}

.footer-logo {
  height: 60px;
  margin-bottom: 1rem;
}

.social-icons {
  display: flex;
  gap: 1rem;
  margin: 1rem 0;
}

.social-icons a {
  color: var(--celeste);
  font-size: 1.5rem;
  transition: transform 0.3s;
  text-decoration: none;
}

.social-icons a:hover {
  transform: scale(1.2);
}

.footer-legal {
  font-size: 0.9rem;
  opacity: 0.7;
  line-height: 1.8;
}

.footer-legal a {
  color: var(--celeste);
  text-decoration: none;
}

.footer-legal a:hover {
  text-decoration: underline;
}

/* =========================
  Responsive
========================= */
@media (max-width: 768px) {
  /* Nav */
  .nav-links {
    display: none;
    position: absolute;
    top: 70px;
    left: 0;
    width: 100%;
    background: var(--azul-principal);
    flex-direction: column;
    padding: 1rem;
    gap: 0;
  }

  .nav-links li {
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  }

  .nav-links li:last-child {
    border-bottom: none;
  }

  .nav-links a {
    display: block;
    padding: 0.75rem 1rem;
  }

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

  .menu-toggle {
    display: block;
  }

  /* Hero */
  .hero h1 {
    font-size: 2rem;
  }

  .hero .slogan {
    font-size: 1.2rem;
  }

  .btn {
    display: block;
    margin: 10px auto;
    max-width: 280px;
  }

  /* Títulos */
  .section-title {
    font-size: 2rem;
  }

  /* Stats */
  .stat-number {
    font-size: 3.5rem;
    font-weight: 800;
  }

  .stat-label {
    font-size: 1.1rem;
    font-weight: 500;
  }

  /* Marcas */
  .marcas-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  /* Contacto: apila */
  .contacto-split {
    grid-template-columns: 1fr;
  }

  .contacto-barra {
    min-height: 160px;
  }

  /* Footer */
  .footer-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .footer-col {
    text-align: center;
    margin-bottom: 2rem;
  }

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

@media (max-width: 480px) {
  /* Marcas: 2 columnas en móvil pequeño */
  .marcas-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  /* Productos: 1 columna */
  .productos-grid {
    grid-template-columns: 1fr;
  }
}