:root {
  --bg: #f7f6f2;
  --fg: #1c1c1c;
  --muted: #6b6a66;
  --card: #ffffff;
  --line: #e4e2dc;
  --accent: #1c1c1c;
  --accent-fg: #ffffff;
  --green: #2fbf71;
  --yellow: #f2b707;
  --red: #e5484d;
  --code-bg: #f0eee8;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #141414;
    --fg: #ecebe7;
    --muted: #9a9892;
    --card: #1d1d1d;
    --line: #2d2d2d;
    --accent: #ecebe7;
    --accent-fg: #141414;
    --code-bg: #262626;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 16px/1.5 ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
}
main { max-width: 34rem; margin: 0 auto; padding: 2.5rem 1rem 4rem; }
header { display: flex; align-items: center; gap: .75rem; margin-bottom: 2rem; }
.lamp { display: flex; flex-direction: column-reverse; gap: 4px; }
.lamp i { width: 10px; height: 10px; border-radius: 50%; background: var(--line); }
.lamp i.g { background: var(--green); }
.lamp i.y { background: var(--yellow); }
.lamp i.r { background: var(--red); }
header b { font-size: 1.1rem; letter-spacing: -.01em; }
header span { color: var(--muted); }
h1 { font-size: 1.6rem; line-height: 1.2; letter-spacing: -.02em; margin: 0 0 .5rem; }
p { margin: .5rem 0; }
.muted { color: var(--muted); }
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 1.25rem;
  margin: 1.25rem 0;
}
.step { color: var(--muted); font-size: .85rem; text-transform: uppercase; letter-spacing: .06em; }
button, .button {
  font: inherit;
  font-weight: 600;
  border: 0;
  border-radius: 10px;
  padding: .7rem 1.1rem;
  background: var(--accent);
  color: var(--accent-fg);
  cursor: pointer;
  text-decoration: none;
  display: inline-block;
}
button.ghost { background: transparent; color: var(--fg); border: 1px solid var(--line); }
button:disabled { opacity: .5; cursor: default; }
input {
  font: inherit;
  width: 100%;
  padding: .7rem .8rem;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: var(--bg);
  color: var(--fg);
  margin: .5rem 0 .75rem;
}
input.code { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; letter-spacing: .15em; text-transform: uppercase; }
.nets { list-style: none; padding: 0; margin: .5rem 0; max-height: 18rem; overflow-y: auto; }
.nets li button {
  width: 100%;
  text-align: left;
  background: transparent;
  color: var(--fg);
  font-weight: 400;
  border: 1px solid var(--line);
  margin: 0 0 .4rem;
  display: flex;
  justify-content: space-between;
}
.nets li button[aria-pressed="true"] { border-color: var(--fg); }
.cmd {
  display: flex;
  gap: .5rem;
  align-items: center;
  background: var(--code-bg);
  border-radius: 10px;
  padding: .6rem .6rem .6rem .8rem;
  margin: .5rem 0;
}
.cmd code { flex: 1; font: 14px ui-monospace, SFMono-Regular, Menlo, monospace; overflow-x: auto; white-space: nowrap; }
.cmd button { padding: .35rem .7rem; font-size: .85rem; }
.err { color: var(--red); }
.ok { color: var(--green); font-weight: 600; }
.progress li { margin: .3rem 0; }
.progress li.done::before { content: "✓ "; color: var(--green); }
.progress li.now::before { content: "… "; }
[hidden] { display: none !important; }
footer { margin-top: 3rem; color: var(--muted); font-size: .9rem; }
footer a { color: inherit; }