*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background: linear-gradient(to right, #ece9e6, #ffffff);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}


/* HEADER */
.site-header {
  background: #000;
  padding: 1rem;
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1200px;
  margin: 0 auto;
  position: relative;
}
.logo img { max-width: 200px; height: auto; }

/* Botón hamburguesa siempre visible */
.menu-toggle {
  background: none;
  border: none;
  cursor: pointer;
  display: block;
  width: 2rem;
  height: 2rem;
  position: relative;
  margin-left: 1rem;
}
.hamburger,
.hamburger::before,
.hamburger::after {
  display: block;
  background: #fff;
  height: 3px;
  width: 100%;
  border-radius: 2px;
  position: absolute;
}
.hamburger { top: 50%; transform: translateY(-50%); }
.hamburger::before { content: ''; top: -8px; }
.hamburger::after  { content: ''; top: 8px; }

/* Menú primario: hidden por defecto, mostrado con .nav-open */
.primary-nav {
  display: none;
  position: absolute;
  top: 100%;
  right: 2.2rem;
  background: #111;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 4px 12px rgba(0,0,0,0.3);
  flex-direction: column;
  z-index: 1001;
}
.primary-nav.nav-open {
  display: flex;
}
.primary-nav ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: .8rem;
  padding: 5px;
}
.primary-nav a {
  padding: 0.75rem 1.5rem;
  text-decoration: none;
  color: #fff;
  font-weight: 500;
}

.container {
  display: flex;
  width: 100%;
  max-width: 1200px;
  gap: 20px;
  flex-wrap: wrap;
  margin: 2rem auto;
  flex-direction: column;
  align-items: center;
}

    /* Tarjetas */
    .cards {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 1rem;
      flex: 1;
      width: 100%;
    }

    .card {
      height: auto;
      border-radius: 12px;
      color: white;
      cursor: pointer;
      text-align: center;
      display: flex;
      flex-direction: column;
      justify-content: center;
      box-shadow: 0 4px 8px rgba(0,0,0,0.2);
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      flex: 1 1 140px;
      padding: 1rem;
    }

    .card:hover {
      transform: scale(1.05);
      box-shadow: 0 8px 16px rgba(0,0,0,0.3);
    }

    .red { background-color: #e63946; }
    .blue { background-color: #457b9d; }
    .green { background-color: #2a9d8f; }
    .orange { background-color: #f4a261; }
    .purple { background-color: #9b5de5; }

    /* Contenido */
    .info-box {
      flex: 2;
      padding: 30px;
      border-radius: 12px;
      box-shadow: 0 4px 12px rgba(0,0,0,0.15);
      background-color: white;
      color: #333;
      min-height: 220px;
      transition: all 0.4s ease;
      animation: fadeIn 0.5s ease;
      position: relative;
    }

    /* Oculto por defecto */
    .info-content {
      display: none;
      position: static;
      overflow: visible;
      max-height: none;
    }

    /* Mostrar contenido activo */
    .info-content.active {
      display: block;
      animation: fadeIn 0.5s ease;
    }

    /* Colores de fondo y texto */
    .info-red    { background-color: #ffe5e9; color: #b71c1c; padding: 20px;}
    .info-blue   { background-color: #e0f0ff; color: #0d47a1; padding: 20px;}
    .info-green  { background-color: #e0fff4; color: #00695c; padding: 20px;}
    .info-orange { background-color: #fff3e0; color: #e65100; padding: 20px;}
    .info-purple { background-color: #f3e8ff; color: #4a148c; padding: 20px;}

    .info-content h2 {
      margin-top: 0;
      font-size: 1.8em;
    }

    .info-content p {
      font-size: 1em;
      line-height: 1.6;
    }

    @keyframes fadeIn {
      from { opacity: 0; transform: translateY(10px); }
      to { opacity: 1; transform: translateY(0); }
    }

.footer {
  background-color: rgba(12, 12, 12, 0.9);
  height: 80px;
  line-height: 80px;
  text-align: center;
  width: 100%;
}

.footer p {
  margin: 0;
  font-size: 13px;
  color: #fff;
  letter-spacing: 0.5px;
  font-weight: 300;
}

.footer p a {
  text-decoration: none;
  color: #fff;
  font-weight: 600;
}

/* ─── Escritorio Muy Grande (>1600px) ─── */
@media (min-width: 1600px) {
  .container {
    max-width: 1440px;
    gap: 2.5rem;
    padding: 0 2rem;
  }
  .card {
    flex: 1 1 200px;
    padding: 1.25rem;
  }
  .info-box { padding: 3rem; }
}

/* ─── Escritorio / Laptops (1025px–1599px) ─── */
@media (min-width: 1025px) and (max-width: 1599px) {
  .container {
    max-width: 1200px;
    gap: 2rem;
    padding: 0 1.5rem;
  }
  .card { flex: 1 1 180px; }
  .info-box { padding: 2.5rem; }
}

/* ─── Tablets horizontales (769px–1024px) ─── */
@media (min-width: 769px) and (max-width: 1024px) {
  .cards {
    justify-content: space-between;
  }
  .card { flex: 1 1 45%; }
  .info-box { width: 100%; padding: 2rem; }
}

/* ─── Tablets verticales / Phablets (481px–768px) ─── */
@media (min-width: 481px) and (max-width: 768px) {
  .cards {
    flex-direction: column;
    gap: 1rem;
  }
  .card { flex: 1 1 100%; }
  .info-box { padding: 1.75rem; }
  .header-inner { padding: 0 1rem; }
}

/* ─── Móviles Grandes (361px–480px) ─── */
@media (min-width: 361px) and (max-width: 480px) {
  .card { padding: 0.75rem; }
  .info-box { padding: 1.5rem; }
  .logo img { max-width: 160px; }
  .menu-toggle { width: 2.25rem; height: 2.25rem; }
}

/* ─── Móviles Pequeños (<360px) ─── */
@media (max-width: 360px) {
  .card { font-size: 0.9rem; padding: 0.5rem; }
  .info-box { padding: 1rem; }
  .logo img { max-width: 140px; }
  .header-inner { flex-direction: column; align-items: flex-start; gap: 0.5rem; }
  .primary-nav {
    right: 0.5rem;
    width: calc(100% - 1rem);
  }
}

/* ─── Footer Responsive ─── */
@media (max-width: 768px) {
  .footer {
    height: auto;
    line-height: 1.5;
    padding: 1rem;
  }

  .footer p {
    font-size: 12px;
    padding: 0 1rem;
  }
}

@media (max-width: 480px) {
  .footer p {
    font-size: 11px;
    text-align: center;
    line-height: 1.4;
  }
}