/* Overlay */
#gqr-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.55);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 99999;
  padding: 16px;
}
#gqr-overlay.is-open {
  display: flex;
}

/* Modal */
#gqr-modal {
  width: min(520px, 100%);
  background: #fff;
  border-radius: 14px;
  box-shadow: 0 16px 60px rgba(0, 0, 0, 0.25);
  overflow: hidden;
}
#gqr-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 16px;
  border-bottom: 1px solid #eee;
}
#gqr-header h3 {
  margin: 0;
  font-size: 16px;
  line-height: 1.2;
}
#gqr-close {
  border: 0;
  background: transparent;
  font-size: 22px;
  line-height: 1;
  cursor: pointer;
  padding: 6px 10px;
  border-radius: 10px;
}
#gqr-close:hover {
  background: #f3f3f3;
}

#gqr-body {
  padding: 16px;
}
#gqr-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  text-align: center;
}
#gqr-canvas {
  background: #fff;
  border: 1px solid #eee;
  border-radius: 12px;
  padding: 10px;
  min-height: 260px;
  min-width: 260px;
  display: flex;
  align-items: center;
  justify-content: center;
}

#gqr-url {
  font-size: 13px;
  color: #333;
  word-break: break-all;
  margin: 0 0 10px;
}
#gqr-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 10px;
  justify-content: center;
}
.gqr-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid #ddd;
  background: #fafafa;
  color: #111;
  text-decoration: none;
  cursor: pointer;
  font-size: 14px;
}
.gqr-btn:hover {
  background: #f2f2f2;
}
.gqr-btn[aria-disabled="true"] {
  opacity: 0.55;
  pointer-events: none;
}

/* Responsividade */
@media (max-width: 768px) {
  #gqr-modal {
    width: min(95%, 400px);
  }
  #gqr-wrap {
    flex-direction: column;
    text-align: center;
  }
  #gqr-canvas {
    max-width: 200px;
  }
}

@media (max-width: 480px) {
  #gqr-modal {
    width: 98%;
  }
  #gqr-header {
    padding: 10px 12px;
  }
  #gqr-body {
    padding: 12px;
  }
  #gqr-canvas {
    width: 180px;
    height: 180px;
  }
  .gqr-btn {
    font-size: 13px;
    padding: 8px 10px;
  }
}