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

body {
  font-family: 'Segoe UI', sans-serif;
  background-color: #f4f4f4;
  transition: background-color 0.3s ease;
}

header {
  background-color: #333;
  color: white;
  padding: 20px;
}

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

nav a {
  color: white;
  text-decoration: none;
  margin: 0 15px;
  padding: 10px;
}

.search-box input {
  padding: 8px;
  border-radius: 4px;
  border: none;
  transition: box-shadow 0.2s ease-in-out;
}

.search-box input:focus {
  outline: none;
  box-shadow: 0 0 8px #00aaff;
}

main {
  display: flex;
  flex-direction: column;
  gap: 20px;
  padding: 20px;
}

.modulo {
  background-color: white;
  padding: 15px;
  border-radius: 5px;
  box-shadow: 0 4px 8px rgba(0,0,0,0.1);
  transition: transform 0.3s ease, background-color 0.4s;
}

.modulo:hover {
  transform: scale(1.03);
  background-color: #e7f3ff;
}

.btn-contador {
  margin-top: 10px;
  padding: 6px 10px;
  border: none;
  border-radius: 4px;
  background-color: #007acc;
  color: white;
  cursor: pointer;
  transition: background-color 0.3s;
}

.btn-contador:hover {
  background-color: #005f99;
}

.contador {
  margin-left: 10px;
  font-size: 14px;
  color: #333;
}

footer {
  background-color: #222;
  color: white;
  text-align: center;
  padding: 15px;
  margin-top: 30px;
}