* {
  margin: 0px;
  padding: 0px;
}
body {
  background-color: rgb(255, 255, 255);
  font-family: Arial, Helvetica, sans-serif;
  color: rgb(0, 0, 0);
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}
html,
body {
  height: 100%;
  min-height: 100%;
}
.container {
  flex: 1 0 auto;
}
footer {
  flex-shrink: 0;
}
.scanner-container {
  width: 100%;
  height: 300px;
  border: 2px dashed #ccc;
  border-radius: 10px;
  margin-bottom: 20px;
  position: relative;
  overflow: hidden;
}

.scanner-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
  background: rgba(0, 0, 0, 0.5);
  color: white;
  font-size: 1.5rem;
  text-align: center;
  padding: 20px;
}

@media (max-width: 768px) {
  .scanner-container {
    height: 400px;
  }
}