* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: #eef3f8;
  color: #1d2733;
}

.contenedor {
  width: min(1100px, 92%);
  margin: 0 auto;
  padding: 25px 0;
}

.presentacion {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 25px;
  align-items: center;
  min-height: 60vh;
}

.subtitulo {
  color: #146c94;
  font-weight: bold;
  text-transform: uppercase;
}

h1 {
  margin: 0 0 15px;
  font-size: 46px;
}

h2 {
  margin-top: 0;
}

.presentacion p {
  font-size: 16px;
  line-height: 1.6;
}

.caja,
.formulario {
  background: white;
  border: 1px solid #d6deea;
  border-radius: 8px;
  padding: 20px;
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.08);
}

.buscador {
  display: flex;
  gap: 8px;
  margin-bottom: 12px;
}

.tarea {
  border: 1px solid #d6deea;
  border-radius: 8px;
  margin-bottom: 12px;
  overflow: hidden;
}

.tarea-titulo {
  width: 100%;
  border: 0;
  background: #ffffff;
  padding: 15px;
  display: flex;
  justify-content: space-between;
  font-size: 18px;
  font-weight: bold;
  cursor: pointer;
}

.tarea-titulo:hover {
  background: #f3f7fb;
}

.tarea-texto {
  display: none;
  margin: 0;
  padding: 0 15px 15px;
  color: #536174;
}

.tarea.abierta .tarea-texto {
  display: block;
}

.tarea.abierta b {
  transform: rotate(45deg);
}

.formulario {
  margin-top: 22px;
}

form {
  display: grid;
  gap: 12px;
}

label {
  font-weight: bold;
  color: #536174;
}

input,
textarea {
  width: 100%;
  border: 1px solid #d6deea;
  border-radius: 6px;
  padding: 12px;
  font: inherit;
}

button[type="submit"] {
  border: 0;
  border-radius: 6px;
  background: #146c94;
  color: white;
  padding: 13px;
  font-weight: bold;
  cursor: pointer;
}

#btn-buscar,
#mostrar-mas {
  border: 0;
  border-radius: 6px;
  background: #146c94;
  color: white;
  padding: 13px;
  font-weight: bold;
  cursor: pointer;
}

button[type="submit"]:hover,
#btn-buscar:hover,
#mostrar-mas:hover {
  background: #0f526f;
}

#mostrar-mas {
  width: 100%;
  margin-top: 4px;
}

.vacio {
  color: #536174;
  background: #f3f7fb;
  padding: 12px;
  border-radius: 6px;
}

@media (max-width: 760px) {
  .presentacion {
    grid-template-columns: 1fr;
    min-height: auto;
  }

  h1 {
    font-size: 40px;
  }
}