:root {
  color-scheme: dark light;
  --bg: #0f1115;
  --fg: #e6e6e6;
  --muted: #9aa0a6;
  --accent: #ffb454;
  --panel: #181b22;
  --border: #2a2f3a;
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; background: var(--bg); color: var(--fg);
  font: 16px/1.5 ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
main { max-width: 640px; margin: 6vh auto; padding: 0 24px; }
h1 { font-size: 1.6rem; margin: 0 0 .25rem; letter-spacing: .01em; }
.sub { color: var(--muted); margin: 0 0 2rem; }
form { display: flex; flex-direction: column; gap: 12px;
  background: var(--panel); padding: 20px; border: 1px solid var(--border); border-radius: 12px; }
label { font-size: .85rem; color: var(--muted); }
input, select, button { font: inherit; }
input[type=url], select {
  background: #0b0d12; color: var(--fg);
  border: 1px solid var(--border); border-radius: 8px;
  padding: 10px 12px; width: 100%;
}
input[type=url]:focus, select:focus { outline: none; border-color: var(--accent); }
.row { display: grid; gap: 6px; }
button {
  margin-top: 6px;
  background: var(--accent); color: #1a1300; border: 0;
  padding: 12px 16px; border-radius: 8px; font-weight: 600; cursor: pointer;
}
button:disabled { opacity: .6; cursor: progress; }
.status { min-height: 1.2em; margin-top: 1rem; color: var(--muted); }
.status.err { color: #ff6b6b; }
.status.ok { color: #8fdc8f; }
details { margin-top: 2rem; color: var(--muted); }
summary { cursor: pointer; }
pre { background: #0b0d12; border: 1px solid var(--border); border-radius: 8px;
  padding: 12px; overflow-x: auto; font-size: .85rem; color: var(--fg); }