body {
  margin: 0;
  font-family: sans-serif;
  background: #f4f7f5;
  color: #14241b;
}
main {
  max-width: 32rem;
  margin: 0 auto;
  padding: 16px;
  display: grid;
  gap: 12px;
}
h1 { font-size: 1.6rem; margin: 0; }
h2 { font-size: 1.1rem; margin: 0 0 8px; }
p { margin: 0; }
.banner {
  background: #145c32;
  color: #fff;
  border-radius: 14px;
  padding: 12px;
  font-weight: 700;
}
section, video, img {
  background: #fff;
  border: 1px solid #d5e0d8;
  border-radius: 14px;
}
section { padding: 12px; }
pre { white-space: pre-wrap; word-break: break-word; margin: 0; }
.actions { display: grid; gap: 8px; }
button {
  min-height: 56px;
  border: 0;
  border-radius: 14px;
  background: #145c32;
  color: #fff;
  font: inherit;
  font-weight: 700;
  touch-action: manipulation;
}
button:disabled { background: #d9e2dc; color: #5d6d64; }
#status {
  min-height: 48px;
  border-radius: 14px;
  padding: 12px;
  background: #fff;
  border: 1px solid #d5e0d8;
  font-weight: 700;
}
#status.busy { background: #fff6d8; }
#status.ok { background: #e5f6ea; }
#status.bad { background: #fde8e8; }
video, img { width: 100%; }