.card {
    border-radius: 1rem;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 0.75rem 1.5rem rgba(0,0,0,0.2);
}

/* Container principal do vídeo */
.box-video {
  position: relative;
  width: 350px;  /* Ajuste conforme necessário */
  max-width: 100%;
  margin: 40px auto;
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 20px 40px rgba(0,0,0,0.3);
  background: linear-gradient(145deg, #1f1f1f, #2c2c2c);
}

/* Vídeo do QR Code */
.box-video video {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 20px;
  object-fit: cover;
}

/* Canvas oculto (opcional) */
.box-video canvas {
  display: none;
}

/* Overlay com efeito futurista */
.box-video::after {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  pointer-events: none;
  border: 3px solid rgba(0, 255, 200, 0.7);
  border-radius: 20px;
  box-sizing: border-box;
  animation: pulse 2s infinite;
}

/* Bordas pulsantes para efeito de scanner */
@keyframes pulse {
  0%, 100% {
    box-shadow: 0 0 15px rgba(0,255,200,0.5), 0 0 30px rgba(0,255,200,0.3), 0 0 45px rgba(0,255,200,0.2);
  }
  50% {
    box-shadow: 0 0 25px rgba(0,255,200,0.7), 0 0 50px rgba(0,255,200,0.5), 0 0 75px rgba(0,255,200,0.3);
  }
}

/* Pequena animação de foco central */
.box-video::before {
  content: '';
  position: absolute;
  top: 50%; left: 50%;
  width: 50%; height: 50%;
  transform: translate(-50%, -50%);
  border: 2px dashed rgba(0, 255, 200, 0.5);
  border-radius: 12px;
  animation: scanline 2s linear infinite;
}

/* Linha animada que passa pelo QR Code */
@keyframes scanline {
  0% { transform: translate(-50%, -60%) }
  50% { transform: translate(-50%, -40%) }
  100% { transform: translate(-50%, -60%) }
}

/* Inputs dark mode */
.form-control-dark {
  background-color: #2c2f33;
  border: 1px solid #555;
  color: #f1f1f1;
  transition: border-color 0.3s, box-shadow 0.3s;
}

/* Placeholder branco para inputs dark */
.form-control-dark::placeholder {
  color: #ffffffaa; /* branco semi-transparente */
  opacity: 1; /* garante que funcione em todos os navegadores */
}


.form-control-dark:focus {
  background-color: #2c2f33;
  border-color: #28a745;
  box-shadow: 0 0 8px #28a74566;
  color: #fff;
  outline: none;
}

.btn-success:hover {
  background-color: #218838;
  border-color: #1e7e34;
}

#out {
  font-family: monospace;
  overflow-x: auto;
}

.system-hash-box{
  display: none;
}