:root {
  color-scheme: light dark;
  --bg: #f6f7f9;
  --fg: #16181d;
  --muted: #5f6672;
  --card: #ffffff;
  --border: #d5d9e0;
  --accent: #1f5fd1;
  --accent-fg: #ffffff;
  --err-bg: #fde8e8;
  --err-fg: #9b1c1c;
  --ok-bg: #e5f5ea;
  --ok-fg: #1d6b38;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #121418;
    --fg: #e8eaee;
    --muted: #9aa2ae;
    --card: #1c1f25;
    --border: #353a44;
    --accent: #5b8ff0;
    --accent-fg: #0b0d10;
    --err-bg: #3b1d1d;
    --err-fg: #f3b4b4;
    --ok-bg: #18301f;
    --ok-fg: #a6e2b8;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 16px/1.45 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
main {
  max-width: 460px;
  margin: 0 auto;
  padding: 24px 16px 48px;
}
h1 { font-size: 1.4rem; margin: 0 0 16px; }
section { display: flex; flex-direction: column; gap: 6px; }
section[hidden], [hidden] { display: none !important; }
.muted { color: var(--muted); }
label { margin-top: 10px; font-size: .9rem; font-weight: 600; display: flex; justify-content: space-between; }
.count { font-weight: 400; color: var(--muted); font-variant-numeric: tabular-nums; }
.count.ok { color: var(--ok-fg); }
input, select {
  width: 100%;
  padding: 10px 12px;
  font-size: 1rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--card);
  color: var(--fg);
}
input { font-family: ui-monospace, "Cascadia Mono", Consolas, monospace; letter-spacing: .03em; }
button {
  margin-top: 14px;
  padding: 12px 16px;
  font-size: 1rem;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--fg);
  cursor: pointer;
}
button.primary { background: var(--accent); color: var(--accent-fg); border-color: var(--accent); font-weight: 600; }
button:disabled { opacity: .6; cursor: default; }
button.link { margin: 0; padding: 4px 0; border: 0; background: none; color: var(--accent); }
.bar { display: flex; justify-content: space-between; align-items: center; }
.code {
  display: block;
  margin-top: 18px;
  min-height: 1.2em;
  text-align: center;
  font: 700 2.6rem/1.2 ui-monospace, "Cascadia Mono", Consolas, monospace;
  letter-spacing: .12em;
  user-select: all;
}
h2 { font-size: 1.05rem; margin: 26px 0 4px; padding-top: 14px; border-top: 1px solid var(--border); }
input.plain { font-family: inherit; letter-spacing: normal; }
.bar span { display: flex; gap: 14px; }
.card { margin-top: 12px; padding: 12px; border: 1px solid var(--border); border-radius: 8px; background: var(--card); }
.card p { margin: 0 0 8px; }
.link-box { display: block; word-break: break-all; font-size: .85rem; padding: 8px; border-radius: 6px; background: var(--bg); }
.row { display: flex; gap: 8px; }
.row button { flex: 1; }
.list { list-style: none; margin: 4px 0 0; padding: 0; }
.list li {
  display: flex; justify-content: space-between; align-items: center; gap: 10px;
  padding: 10px 0; border-bottom: 1px solid var(--border);
}
.list li .info { min-width: 0; }
.list li .small { font-size: .85rem; color: var(--muted); }
.list li button { margin: 0; padding: 6px 12px; font-size: .9rem; flex-shrink: 0; }
.list li.blocked .name { text-decoration: line-through; color: var(--muted); }
.list.log li { display: block; font-size: .88rem; }
.list.log .code-val { font-family: ui-monospace, "Cascadia Mono", Consolas, monospace; font-weight: 700; }
.list.log .mono { font-family: ui-monospace, "Cascadia Mono", Consolas, monospace; font-size: .8rem; color: var(--muted); word-break: break-all; }
.tag { font-size: .75rem; padding: 1px 6px; border-radius: 4px; background: var(--bg); border: 1px solid var(--border); margin-left: 4px; }
.empty { color: var(--muted); padding: 8px 0; }
.msg { margin: 0 0 12px; padding: 10px 12px; border-radius: 8px; background: var(--err-bg); color: var(--err-fg); }
.msg.ok { background: var(--ok-bg); color: var(--ok-fg); }