/* Reset */
body {
  margin: 0;
  font-family: 'Segoe UI', sans-serif;
  background: #1e1e1e;
  color: white;
  display: flex;
  flex-direction: column;
  height: 100vh;
}

/* Encabezado */
header {
  text-align: center;
  padding: 20px;
  background: #222;
  border-bottom: 1px solid #333;
}

header h1 {
  margin: 0;
  font-size: 26px;
  color: #4da6ff;
}

header p {
  margin: 8px 0 15px;
  color: #ccc;
  font-size: 14px;
}

/* Layout principal: 3 columnas */
main {
  display: flex;
  flex: 1;
  height: calc(100vh - 120px); /* Resta el header y footer */
  overflow: hidden;
}

/* Panel de filtros (izquierda) */
#filter-panel {
  width: 300px;
  background: #2a2a2a;
  border-right: 2px solid #444;
  padding: 20px;
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.combo-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  background: rgba(40, 40, 40, 0.9);
  padding: 15px;
  border-radius: 10px;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.4);
  width: 100%;
}

/* Selector con ajuste de texto */
#objetivoSelect {
  width: 100%;
  height: 200px;
  border: 1px solid #444;
  border-radius: 6px;
  background: #2a2a2a;
  color: white;
  font-size: 14px;
  padding: 8px;
  outline: none;
  white-space: normal; /* Permite salto de línea */
  line-height: 1.4;
}

#objetivoSelect option {
  white-space: normal;
  word-wrap: break-word;
  padding: 4px 6px;
}

/* Tags seleccionados */
#selected-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 10px;
  justify-content: flex-start;
  max-height: 120px;
  overflow-y: auto;
  padding-right: 4px;
}

.tag {
  background: #4da6ff;
  color: white;
  padding: 5px 10px;
  border-radius: 20px;
  font-size: 12px;
  display: flex;
  align-items: center;
  gap: 5px;
}

.tag span {
  cursor: pointer;
  font-weight: bold;
}

/* Botón */
button {
  margin-top: 15px;
  background: #4da6ff;
  border: none;
  color: white;
  padding: 6px 12px;
  border-radius: 5px;
  cursor: pointer;
  width: 100%;
}
button:hover {
  background: #3399ff;
}

/* Grafo en el centro */
#graph-container {
  flex: 1;
  background: #1e1e1e;
  position: relative;
}

svg {
  width: 100%;
  height: 100%;
}

/* Panel de información (derecha) */
#infoPanel {
  width: 320px;
  background: #2a2a2a;
  border-left: 2px solid #444;
  padding: 20px;
  box-sizing: border-box;
  overflow-y: auto;
}

#infoPanel h2 {
  margin-top: 0;
  color: #4da6ff;
}

/* Footer */
footer {
  text-align: center;
  padding: 10px;
  font-size: 12px;
  color: #777;
  background: #222;
  border-top: 1px solid #333;
}

/* Estilo nodos y texto */
circle {
  stroke: #fff;
  stroke-width: 1.5px;
  cursor: pointer;
}

text {
  fill: white;
  font-size: 12px;
  pointer-events: none;
}

/* Scrollbar estilizado */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: #1e1e1e;
  border-radius: 10px;
}

::-webkit-scrollbar-thumb {
  background: #4da6ff;
  border-radius: 10px;
  transition: background 0.3s;
}

::-webkit-scrollbar-thumb:hover {
  background: #3399ff;
}

/* Scroll específico para los tags */
#selected-tags::-webkit-scrollbar {
  width: 6px;
}

#selected-tags::-webkit-scrollbar-thumb {
  background: #4da6ff;
  border-radius: 6px;
}

/* Scroll específico para el panel de información */
#infoPanel::-webkit-scrollbar {
  width: 8px;
}

#infoPanel::-webkit-scrollbar-thumb {
  background: #4da6ff;
  border-radius: 8px;
}