/* -----------------------------
   Variables de color
----------------------------- */
:root {
  --color-primary: #004080;
  --color-secondary: #0066cc;
  --color-bg: #ffffff;
  --color-text: #333333;
  --color-card: #f5f5f5;
  --color-border: #dddddd;
  --max-width: 1100px;
}

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

/* -----------------------------
   Body y tipografía
----------------------------- */
body {
  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-bg);
}

/* -----------------------------
   Contenedor central
----------------------------- */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
}

/* -----------------------------
   Encabezado (hero)
----------------------------- */
.hero {
  text-align: center;
  padding: 60px 20px;
  background-color: var(--color-bg);
}

.hero .logo {
  max-width: 220px;
  margin-bottom: 20px;
}

.hero h1 {
  font-size: 1.5rem;
  color: var(--color-primary);
  margin-bottom: 10px;
}

.hero-title {
  font-size: 2.5rem;          /* 2.5 × 16 px ≈ 40 px */
  line-height: 1.2;
  text-align: center;
  color: #004080;             /* opcional */
}

.hero .subtitle {
  font-size: 1.2rem;
  color: var(--color-secondary);
}

/* -----------------------------
   Secciones
----------------------------- */
.section {
  padding: 50px 0;
}

.section h2 {
  text-align: center;
  font-size: 2rem;
  color: var(--color-primary);
  margin-bottom: 30px;
}

/* -----------------------------
   Cartas (Misión, Visión, Valores)
----------------------------- */
.cards {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  justify-content: center;
}

.card {
  flex: 1 1 calc(33.333% - 20px);
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 20px;
  text-align: center;
}

.card h3 {
  color: var(--color-primary);
  margin-bottom: 15px;
}

.card p {
  font-size: 0.95rem;
}

/* -----------------------------
   Formulario de contacto
----------------------------- */
form {
  display: grid;
  gap: 15px;
}

.grid {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.grid-item {
  flex: 1 1 calc(50% - 10px);
}

input, textarea {
  width: 100%;
  padding: 10px;
  border: 1px solid var(--color-border);
  border-radius: 4px;
  font-family: inherit;
}

textarea {
  resize: vertical;
}

button {
  background: var(--color-secondary);
  color: #fff;
  padding: 12px 20px;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  font-size: 1rem;
}

button:hover {
  background: var(--color-primary);
}

/* Enlace de descarga del catálogo */
.download-link {
  margin-top: 20px;
  text-align: center;
}

.download-link a {
  color: var(--color-secondary);
  text-decoration: underline;
}

/* -----------------------------
   Pie de página
----------------------------- */
.footer {
  background: var(--color-bg);
  padding: 20px 0;
  text-align: center;
  border-top: 1px solid var(--color-border);
}

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

/* -----------------------------
   Responsividad
----------------------------- */
@media (max-width: 768px) {
  .card {
    flex: 1 1 100%;
  }

  .grid-item {
    flex: 1 1 100%;
  }
}