* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #0b0f14;
  color: #e6edf3;
}
.login-screen {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}
.login-card {
  width: 100%;
  max-width: 320px;
  background: #161b22;
  border: 1px solid #30363d;
  border-radius: 8px;
  padding: 2rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
.login-card h1 { font-size: 1.1rem; margin: 0; }
.subtitle { color: #8b949e; margin: 0 0 0.5rem; font-size: 0.9rem; }
input, button {
  font-size: 1rem;
  padding: 0.6rem 0.75rem;
  border-radius: 6px;
  border: 1px solid #30363d;
}
input { background: #0d1117; color: #e6edf3; }
button {
  background: #238636;
  color: white;
  border: none;
  cursor: pointer;
}
.error { color: #f85149; font-size: 0.85rem; margin: 0; }
.app-shell { max-width: 720px; margin: 0 auto; padding: 1.5rem; }
header { display: flex; justify-content: space-between; align-items: center; }
.status-banner {
  background: #3d2b00;
  border: 1px solid #9e6a03;
  border-radius: 6px;
  padding: 0.75rem 1rem;
  font-size: 0.9rem;
  margin: 1rem 0;
}
#analyze-btn {
  background: #238636;
  color: white;
  border: none;
  border-radius: 6px;
  padding: 0.6rem 1.2rem;
  cursor: pointer;
}
#result { background: #0d1117; padding: 1rem; border-radius: 6px; overflow-x: auto; }