body {
  margin: 0;
  font-family: 'Roboto', sans-serif;
  background: #f5f6fa;
  color: #333;
}

.navbar {
  background: #002776;
  color: white;
  padding: 15px 40px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: sticky;
  top: 0;
  z-index: 100;
}

.logo {
  font-family: 'Montserrat', sans-serif;
  font-size: 1.3em;
  font-weight: bold;
}

.btn {
  padding: 10px 20px;
  border-radius: 6px;
  border: none;
  cursor: pointer;
  font-weight: bold;
  transition: 0.3s;
}

.cta {
  background: #FFCC00;
  color: #002776;
}

.cta:hover {
  background: white;
  color: #002776;
}

/* Hero */
.hero {
  height: 70vh;
  background-size: cover;
  background-position: center;
  position: relative;
}

.hero-overlay {
  background: rgba(0,0,0,0.5);
  color: white;
  text-align: center;
  padding: 100px 20px;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.hero-overlay h1 {
  font-family: 'Montserrat', sans-serif;
  font-size: 2.5em;
  margin-bottom: 10px;
}

.hero-overlay p {
  font-size: 1.2em;
  margin-bottom: 20px;
}

/* Feed estilo cards */
.feed {
  padding: 50px 20px;
  text-align: center;
}

.feed h2 {
  font-family: 'Montserrat', sans-serif;
  color: #002776;
  margin-bottom: 30px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 20px;
}

.card {
  background: white;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0px 4px 10px rgba(0,0,0,0.1);
  transition: transform 0.3s;
}

.card:hover {
  transform: translateY(-5px);
}

.card img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.card p {
  padding: 15px;
  font-weight: bold;
}

/* Modal */
.modal {
  display: none;
  position: fixed;
  z-index: 1000;
  left: 0; top: 0;
  width: 100%; height: 100%;
  background: rgba(0,0,0,0.7);
}

.modal-content {
  background: white;
  margin: 5% auto;
  padding: 30px;
  border-radius: 10px;
  width: 90%;
  max-width: 400px;
  text-align: center;
}

.modal input, .modal textarea {
  width: 100%;
  padding: 10px;
  margin: 8px 0;
  border-radius: 6px;
  border: 1px solid #ccc;
}

.modal button {
  width: 100%;
  background: #002776;
  color: white;
}

.modal button:hover {
  background: #FFCC00;
  color: #002776;
}

.close {
  float: right;
  font-size: 1.5em;
  cursor: pointer;
}

/* Footer */
footer {
  background: #002776;
  color: white;
  text-align: center;
  padding: 20px;
}

footer a {
  color: #FFCC00;
  text-decoration: none;
}