:root {
  --bg: #f5f6f8;
  --card: #ffffff;
  --text: #1f2328;
  --muted: #667085;
  --line: #e4e7ec;
  --primary: #2563eb;
  --primary-text: #ffffff;
  --ok: #16a34a;
  --warn: #b45309;
  --err: #dc2626;
  --code-bg: #f2f4f7;
  --radius: 10px;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1115;
    --card: #171a21;
    --text: #e6e8eb;
    --muted: #98a2b3;
    --line: #2a2f3a;
    --primary: #3b82f6;
    --code-bg: #10131a;
    color-scheme: dark;
  }
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 14px/1.6 system-ui, -apple-system, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}
a { color: var(--primary); text-decoration: none; }
h1 { font-size: 22px; margin: 0 0 12px; }
h2 { font-size: 17px; margin: 0 0 12px; }
h3 { font-size: 14px; margin: 18px 0 6px; }
code, pre, .code-inline { font-family: ui-monospace, "Cascadia Code", Consolas, monospace; font-size: 12.5px; }
.muted { color: var(--muted); }
.error { color: var(--err); min-height: 1.2em; }
.modal .error:empty { display: none; }

.topbar {
  position: sticky; top: 0; z-index: 5;
  display: flex; align-items: center; gap: 24px;
  padding: 10px 24px; background: var(--card); border-bottom: 1px solid var(--line);
}
.brand { font-weight: 700; font-size: 16px; color: var(--text); white-space: nowrap; }
.brand span { color: var(--primary); }
nav { display: flex; gap: 4px; flex-wrap: wrap; flex: 1; }
nav a { padding: 6px 12px; border-radius: 8px; color: var(--muted); }
nav a:hover { background: var(--code-bg); color: var(--text); }
nav a.active { background: var(--code-bg); color: var(--text); font-weight: 600; }
.who { display: flex; align-items: center; gap: 10px; color: var(--muted); }

main { max-width: 1180px; margin: 0 auto; padding: 24px; }
.card {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 20px; margin-bottom: 18px;
}
.card.narrow { max-width: 620px; margin: 40px auto; }
.row { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; margin-bottom: 12px; }
.row h2 { margin: 0; }

.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 14px; margin-bottom: 18px; }
.stat { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px 20px; }
.stat b { display: block; font-size: 26px; }
.stat span { color: var(--muted); }

table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 9px 10px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { color: var(--muted); font-weight: 600; font-size: 12.5px; white-space: nowrap; }
td.wrap { word-break: break-all; }
td .small-list { margin: 0; padding-left: 16px; }
.table-wrap { overflow-x: auto; }

.badge { display: inline-block; padding: 1px 8px; border-radius: 999px; font-size: 12px; background: var(--code-bg); color: var(--muted); white-space: nowrap; }
.badge.ok { background: rgba(22, 163, 74, .12); color: var(--ok); }
.badge.warn { background: rgba(180, 83, 9, .12); color: var(--warn); }
.badge.err { background: rgba(220, 38, 38, .12); color: var(--err); }
.badge.info { background: rgba(37, 99, 235, .12); color: var(--primary); }

button {
  font: inherit; cursor: pointer; border-radius: 8px; padding: 7px 14px;
  border: 1px solid var(--line); background: var(--card); color: var(--text); white-space: nowrap;
}
button:hover { border-color: var(--muted); }
button.primary { background: var(--primary); border-color: var(--primary); color: var(--primary-text); }
button.danger { color: var(--err); }
button.ghost { background: transparent; }
button.small { padding: 3px 10px; font-size: 12.5px; }
button:disabled { opacity: .5; cursor: default; }

input, select, textarea {
  font: inherit; color: var(--text); background: var(--bg);
  border: 1px solid var(--line); border-radius: 8px; padding: 7px 10px; width: 100%;
}
input:focus, select:focus, textarea:focus { outline: 2px solid var(--primary); outline-offset: -1px; }
.form { display: grid; gap: 12px; }
.form label { display: grid; gap: 4px; color: var(--muted); }
textarea { resize: vertical; font-family: ui-monospace, "Cascadia Code", Consolas, monospace; font-size: 12.5px; }
details { margin: 10px 0; }
details summary { cursor: pointer; }
.form .grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 12px; }
.inline { display: flex; gap: 8px; }
.inline input { min-width: 240px; }
.with-button { display: flex; gap: 8px; }
fieldset { border: 1px solid var(--line); border-radius: 8px; padding: 10px 14px; margin: 0; }
legend { color: var(--muted); padding: 0 4px; }
label.check { display: flex; align-items: center; gap: 8px; color: var(--text); padding: 3px 0; }
label.check input { width: auto; }
.project-picks { padding-left: 24px; }
.actions { display: flex; justify-content: flex-end; gap: 10px; margin-top: 16px; }

.code { position: relative; margin: 6px 0 10px; }
.code pre {
  margin: 0; padding: 12px 64px 12px 14px; background: var(--code-bg); border: 1px solid var(--line);
  border-radius: 8px; white-space: pre-wrap; word-break: break-all;
}
.code .copy { position: absolute; top: 8px; right: 8px; padding: 2px 10px; font-size: 12px; }
.code-inline { background: var(--code-bg); padding: 2px 8px; border-radius: 6px; font-size: 15px; letter-spacing: 1px; white-space: nowrap; }

.alert { border-radius: 8px; padding: 10px 14px; margin-bottom: 14px; border: 1px solid var(--line); }
.alert.warn { background: rgba(180, 83, 9, .08); border-color: rgba(180, 83, 9, .35); }
.alert.error { background: rgba(220, 38, 38, .08); border-color: rgba(220, 38, 38, .35); }
.alert.info { background: rgba(37, 99, 235, .07); border-color: rgba(37, 99, 235, .3); }

.tabs { display: flex; gap: 6px; margin-bottom: 14px; flex-wrap: wrap; }
.tabs button.active { background: var(--primary); border-color: var(--primary); color: var(--primary-text); }
ol.steps { margin: 0; padding-left: 20px; }
ol.steps li { margin: 4px 0; }

.modal { position: fixed; inset: 0; background: rgba(0, 0, 0, .45); display: flex; align-items: flex-start; justify-content: center; padding: 48px 16px; overflow-y: auto; z-index: 20; }
.modal[hidden] { display: none; }
.modal-card { background: var(--card); border-radius: 12px; padding: 22px 24px; width: min(760px, 100%); border: 1px solid var(--line); }
.dir-list { max-height: 360px; overflow-y: auto; border: 1px solid var(--line); border-radius: 8px; }
.dir-list button { display: block; width: 100%; text-align: left; border: 0; border-bottom: 1px solid var(--line); border-radius: 0; background: transparent; }
.dir-list button:hover { background: var(--code-bg); }

.toast { position: fixed; right: 20px; bottom: 20px; padding: 10px 16px; border-radius: 8px; background: var(--text); color: var(--bg); z-index: 30; }
.toast.err { background: var(--err); color: #fff; }
.toast[hidden] { display: none; }

@media (max-width: 720px) {
  .topbar { flex-wrap: wrap; gap: 8px; padding: 10px 14px; }
  main { padding: 14px; }
  .inline { flex-direction: column; }
  .inline input { min-width: 0; }
}