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

body {
  font-family: "Segoe UI", sans-serif;
  background-color: #f9f9f9;
  color: #333;
  padding: 20px;
}

header, footer {
  text-align: center;
  margin-bottom: 20px;
}

/* Leyenda */
#legend {
  margin-bottom: 30px;
  padding: 20px;
  background-color: #fff;
  border-radius: 8px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

#legend h2 {
  margin-bottom: 15px;
  color: #0056b3;
}

#legend-items {
  display: flex;
  flex-wrap: wrap;
  gap: 15px;
  list-style: none;
}

#legend-items li {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 5px 10px;
  background-color: #f8f9fa;
  border-radius: 15px;
}

#legend-items span {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  border: 2px solid #fff;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
}

/* Contenedor de semestres */
#semesters-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 20px;
}

.semester {
  background-color: #fff;
  border-radius: 8px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  padding: 20px;
  min-height: 200px;
  border: 2px dashed transparent;
  transition: border-color 0.3s ease;
}

.semester:hover {
  border-color: #0056b3;
}

.semester h2 {
  color: #0056b3;
  margin-bottom: 15px;
  font-size: 1.3em;
  border-bottom: 2px solid #e9ecef;
  padding-bottom: 8px;
}

.curso {
  border: 1px solid #ddd;
  border-left: 5px solid;
  border-radius: 5px;
  padding: 15px;
  margin-bottom: 10px;
  background-color: #fefefe;
  cursor: pointer; /* Cambiado a pointer para indicar que es clickeable */
  transition: all 0.3s ease;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.curso:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

.curso.approved {
  background-color: #d4edda; /* Color para cursos aprobados */
  border-color: #28a745; /* Borde verde para aprobados */
  opacity: 1;
  cursor: pointer;
}

.curso.disabled {
  background-color: #f8d7da; /* Color para cursos deshabilitados */
  border-color: #dc3545; /* Borde rojo para deshabilitados */
  opacity: 0.6; /* Menor opacidad para indicar que no se puede tomar */
  cursor: not-allowed;
}

.curso h3 {
  color: #333;
  margin-bottom: 8px;
  font-size: 1.1em;
}

.curso p {
  font-size: 0.9em;
  line-height: 1.5;
  margin-bottom: 4px;
}

.curso p:last-child {
  margin-bottom: 0;
}

/* Responsive design */
@media (max-width: 768px) {
  body {
      padding: 10px;
  }
  
  #semesters-container {
      grid-template-columns: 1fr;
  }
  
  #legend-items {
      justify-content: center;
  }
  
  .curso {
      padding: 12px;
  }
}