* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  background: #0f1115;
  color: #eaeaea;
}
#app { display: flex; height: 100vh; }
.sidebar {
  width: 220px;
  background: #151822;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.sidebar h1 { margin: 0 0 12px 0; font-size: 20px; }
.sidebar button {
  background: rgba(255,255,255,0.05);
  border: none;
  color: #fff;
  padding: 10px;
  border-radius: 8px;
  cursor: pointer;
  text-align: left;
}
.sidebar button:hover { background: rgba(255,255,255,0.12); }
main { flex: 1; display: flex; flex-direction: column; }
header {
  padding: 12px 16px;
  border-bottom: 1px solid #222;
  font-size: 14px;
  opacity: 0.8;
}
#view {
  padding: 16px;
  overflow-y: auto;
}
.card {
  background: rgba(255,255,255,0.04);
  border-radius: 12px;
  padding: 16px;
  margin-bottom: 12px;
}
textarea {
  width: 100%;
  min-height: 200px;
  background: #0b0d12;
  color: #fff;
  border: 1px solid #333;
  border-radius: 8px;
  padding: 12px;
}
.copy {
  margin-top: 8px;
  background: #2a6cff;
  border: none;
  color: #fff;
  padding: 8px 12px;
  border-radius: 6px;
  cursor: pointer;
}