body {
  font-family: 'Inter', sans-serif;
  margin: 0;
  background: #f9fafb;
  color: #222;
}
header {
  background: white;
  padding: 1rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid #eee;
}
.logo {
  font-weight: 800;
  font-size: 1.4rem;
}
nav ul {
  list-style: none;
  display: flex;
  gap: 1rem;
  align-items: center;
}
nav ul li {
  cursor: pointer;
}
.bell {
  position: relative;
}
.badge {
  position: absolute;
  top: -8px;
  right: -10px;
  background: red;
  color: white;
  border-radius: 50%;
  padding: 0 5px;
  font-size: 0.7rem;
}
main {
  padding: 2rem;
}
.hero {
  background: #eaf4ff;
  padding: 2rem;
  border-radius: 6px;
  text-align: center;
}
.hero input {
  margin-top: 1rem;
  padding: 0.5rem;
  width: 50%;
  border-radius: 5px;
  border: 1px solid #ccc;
}
.cards {
  display: flex;
  justify-content: space-around;
  margin: 2rem 0;
}
.card {
  background: white;
  padding: 1rem;
  border-radius: 8px;
  box-shadow: 0 1px 3px rgba(0,0,0,0.1);
  width: 30%;
  text-align: center;
}
.columns {
  display: flex;
  justify-content: space-between;
  gap: 2rem;
}
.column {
  background: white;
  padding: 1rem;
  border-radius: 8px;
  width: 32%;
  box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}
.bando {
  background: #f4f4f4;
  padding: 0.5rem;
  border-radius: 5px;
  margin-bottom: 1rem;
}
button {
  margin-top: 0.5rem;
  padding: 0.4rem 1rem;
  background: #007BFF;
  color: white;
  border: none;
  border-radius: 4px;
}
footer {
  text-align: center;
  padding: 1rem;
  background: #efefef;
  margin-top: 2rem;
}