/* ===== MAIN GENERAL ===== */
.main {
  max-width: 1100px;
  margin: 0 auto;
  padding: 40px 20px;
  text-align: center;
}

/* ===== HERO ===== */
.hero-box {
  margin-bottom: 50px;
}

.hero-box h2 {
  font-size: 2rem;
  margin-bottom: 15px;
  color: #2c3e50;
}

.hero-box .subtitulo {
  font-size: 1.1rem;
  margin-bottom: 25px;
  color: #555;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.6;
}

.hero-box .hero-image {
  max-width: 600px;
  width: 100%;
  border-radius: 10px;
  box-shadow: 0 5px 20px rgba(0,0,0,0.15);
}

/* ===== GRID PDFS ===== */
.grid-pdfs {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 25px;
  justify-items: center;
  margin-top: 40px;
}

/* ===== PDF CARDS ===== */
.card-pdf {
  background: #fff;
  border-radius: 12px;
  padding: 20px;
  text-align: center;
  transition: transform 0.2s, box-shadow 0.2s;
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
  width: 100%;
  max-width: 320px;
}

.card-pdf:hover {
  transform: translateY(-5px);
  box-shadow: 0 6px 20px rgba(0,0,0,0.15);
}

.card-pdf img {
  width: 70px;
  margin-bottom: 15px;
}

.card-pdf h3 {
  font-size: 1.2rem;
  margin-bottom: 8px;
  color: #2c3e50;
}

.card-pdf p {
  font-size: 0.95rem;
  color: #555;
}
/* ===================== FONDO COMPLETO ===================== */
body {
  background-color: #f0f8ff; /* igual que admision */
}