body {
  font-family: system-ui, -apple-system, sans-serif;
  background: #0f172a;
  color: #e2e8f0;
  margin: 0;
  padding: 12px;
  display: flex;
  justify-content: center;
}

/* Container for everything */
.container {
  width: 100%;
  max-width: 420px;   /* KEY: prevents wide layout */
}

h1 {
  font-size: 20px;
  margin-bottom: 10px;
  text-align: center;
}

button {
  width: 100%;
  padding: 14px;
  font-size: 16px;
  border-radius: 12px;
  border: none;
  background: #22c55e;
  color: white;
  margin-bottom: 15px;
}

.card {
  background: #1e293b;
  margin-bottom: 12px;
  padding: 12px;
  border-radius: 14px;
}

.card h2 {
  font-size: 16px;
  margin-bottom: 8px;
}

p {
  font-size: 14px;
  margin: 4px 0;
}

#headingBig {
  font-size: 36px;
  margin: 5px 0;
  text-align: center;
}

/* 🎥 Fullscreen camera */
#camera {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: -1; /* behind UI */
}

/* UI overlay */
.container {
  position: relative;
  z-index: 1;
  color: white;
  padding: 10px;
}

/* Make cards readable on camera */
.card {
  background: rgba(0, 0, 0, 0.5);
  padding: 10px;
  margin: 10px 0;
  border-radius: 10px;
  backdrop-filter: blur(5px);
}