/* Pantalla de conexión */
.connection-screen {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 10000;
  display: flex;
  justify-content: center;
  align-items: center;
  background: #000;
}

.connection-screen.hidden {
  display: none;
}

.connection-background {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: url('../img/seedream-4.0_Modern_professional_background_for_a_personal_finance_web_application_login_scre-0.jpg');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  opacity: 0.4;
  filter: blur(3px);
}

.connection-content {
  position: relative;
  z-index: 10001;
  text-align: center;
  padding: 2rem;
  background: rgba(0, 0, 0, 0.7);
  border-radius: 16px;
  backdrop-filter: blur(10px);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
  max-width: 400px;
}

.connection-spinner {
  width: 120px;
  height: 120px;
  position: relative;
  margin: 0 auto 2rem;
}

.spinner-ring {
  position: absolute;
  width: 100%;
  height: 100%;
  border: 4px solid transparent;
  border-top-color: #00b894;
  border-radius: 50%;
  animation: spin 1.5s cubic-bezier(0.68, -0.55, 0.265, 1.55) infinite;
}

.spinner-ring:nth-child(2) {
  width: 80%;
  height: 80%;
  top: 10%;
  left: 10%;
  border-top-color: #0984e3;
  animation-delay: -0.5s;
}

.spinner-ring:nth-child(3) {
  width: 60%;
  height: 60%;
  top: 20%;
  left: 20%;
  border-top-color: #6c5ce7;
  animation-delay: -1s;
}

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

.connection-title {
  color: #fff;
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
  font-weight: 600;
}

.connection-message {
  color: rgba(255, 255, 255, 0.8);
  font-size: 0.95rem;
  margin-bottom: 1.5rem;
}

.connection-retry-btn {
  padding: 0.75rem 2rem;
  background: linear-gradient(135deg, #00b894, #00a380);
  color: white;
  border: none;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 4px 15px rgba(0, 184, 148, 0.3);
}

.connection-retry-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 184, 148, 0.4);
  background: linear-gradient(135deg, #00a380, #00b894);
}

.connection-retry-btn:active {
  transform: translateY(0);
}

.connection-retry-btn.hidden {
  display: none;
}

/* Estados de conexión */
.connection-screen.connecting .connection-title {
  color: #00b894;
}

.connection-screen.error .connection-title {
  color: #d63031;
}

.connection-screen.error .spinner-ring {
  animation: none;
  border-top-color: #d63031;
  opacity: 0.5;
}

.connection-screen.retrying .connection-title {
  color: #fdcb6e;
}

/* Animación de puntos suspensivos */
@keyframes dots {
  0%, 20% {
    content: '.';
  }
  40% {
    content: '..';
  }
  60%, 100% {
    content: '...';
  }
}


/* Reservar espacio fijo para los puntos animados y evitar salto de tamaño */
.connection-title.loading {
  display: inline-block;
  min-width: 12ch; /* Espacio suficiente para el texto y los puntos */
  position: relative;
}
.connection-title.loading::after {
  display: inline-block;
  width: 2.5ch;
  content: '';
  animation: dots 1.5s steps(1) infinite;
  vertical-align: baseline;
}