* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: Inter, system-ui, sans-serif;
  background: #111827;
  color: #e5e7eb;
}
#activity-root {
  min-height: 100vh;
  padding: 20px;
}
.dashboard {
  display: grid;
  gap: 16px;
}
.hero {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}
.hero h1 {
  margin: 0;
  font-size: 24px;
}
.hero button {
  border: 0;
  border-radius: 10px;
  padding: 10px 14px;
  background: #60a5fa;
  color: #08111f;
  font-weight: 700;
  cursor: pointer;
}
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
}
.card {
  background: #1f2937;
  border: 1px solid #374151;
  border-radius: 14px;
  padding: 16px;
}
.card h2 {
  margin: 0 0 12px;
  font-size: 16px;
}
.kv {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 8px 12px;
  margin: 0;
}
.kv dt {
  color: #93c5fd;
}
.kv dd {
  margin: 0;
}
.preview img {
  width: 100%;
  border-radius: 12px;
  border: 1px solid #374151;
  background: #0b1020;
}
.pre {
  overflow: auto;
  white-space: pre-wrap;
  word-break: break-word;
  font-family: ui-monospace, monospace;
  font-size: 12px;
}
.status-ok { color: #4ade80; }
.status-bad { color: #f87171; }
.error {
  color: #fecaca;
  background: #451a1a;
  border: 1px solid #7f1d1d;
  border-radius: 12px;
  padding: 12px;
}