/* Estilos para Dibujo Colaborativo */

/* Indicador de sesión activa */
.collab-active {
  position: fixed;
  top: 80px;
  right: 20px;
  background: linear-gradient(135deg, #28a745, #20c997);
  color: white;
  padding: 10px 20px;
  border-radius: 25px;
  box-shadow: 0 4px 15px rgba(40, 167, 69, 0.4);
  z-index: 1000;
  animation: pulse-collab 2s ease-in-out infinite;
  font-weight: bold;
}

@keyframes pulse-collab {
  0%, 100% {
    box-shadow: 0 4px 15px rgba(40, 167, 69, 0.4);
  }
  50% {
    box-shadow: 0 4px 25px rgba(40, 167, 69, 0.8);
  }
}

/* Cursor del compañero */
.partner-cursor {
  position: absolute;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: rgba(255, 107, 53, 0.7);
  border: 2px solid white;
  pointer-events: none;
  z-index: 1000;
  transition: all 0.1s ease;
}

.partner-cursor::after {
  content: attr(data-partner);
  position: absolute;
  top: -25px;
  left: 25px;
  background: rgba(0, 0, 0, 0.8);
  color: white;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 12px;
  white-space: nowrap;
}

/* Botón de colaborar con animación */
#collabBtn {
  position: relative;
  overflow: hidden;
}

#collabBtn::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.3);
  transform: translate(-50%, -50%);
  transition: width 0.6s, height 0.6s;
}

#collabBtn:hover::before {
  width: 300px;
  height: 300px;
}

/* Loader de búsqueda */
#collabLoader {
  animation: spin 1s linear infinite;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* Notificación de conexión */
.collab-notification {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: linear-gradient(135deg, #667eea, #764ba2);
  color: white;
  padding: 30px 50px;
  border-radius: 15px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
  z-index: 10000;
  text-align: center;
  animation: slideIn 0.5s ease;
}

@keyframes slideIn {
  from {
    opacity: 0;
    transform: translate(-50%, -60%);
  }
  to {
    opacity: 1;
    transform: translate(-50%, -50%);
  }
}

/* Canvas en modo colaborativo */
.canvas-collab-mode {
  border: 3px solid #28a745 !important;
  box-shadow: 0 0 20px rgba(40, 167, 69, 0.5) !important;
}

/* Indicador de actividad del compañero */
.partner-activity {
  position: fixed;
  bottom: 100px;
  right: 20px;
  background: rgba(40, 167, 69, 0.9);
  color: white;
  padding: 8px 15px;
  border-radius: 20px;
  font-size: 14px;
  z-index: 1000;
  animation: fadeInOut 2s ease-in-out infinite;
}

@keyframes fadeInOut {
  0%, 100% { opacity: 0.5; }
  50% { opacity: 1; }
}

/* Responsive para móvil */
@media (max-width: 768px) {
  .collab-active {
    top: 60px;
    right: 10px;
    padding: 8px 15px;
    font-size: 12px;
  }
  
  .partner-cursor {
    width: 15px;
    height: 15px;
  }
  
  .partner-cursor::after {
    font-size: 10px;
    padding: 1px 6px;
  }
  
  .collab-notification {
    padding: 20px 30px;
    font-size: 14px;
  }
}