/* GitHub-style skin: repository page / issue thread */
html[data-skin="github"] {
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans", Helvetica, Arial, "Apple SD Gothic Neo", sans-serif;
  --bg: #ffffff; --fg: #1f2328; --muted: #59636e; --line: #d1d9e0; --subtle: #f6f8fa;
  --accent: #0969da; --good: #1a7f37; --bad: #d1242f; --focus: #0969da;
  --green-btn: #1f883d;
  --rail-w: 296px;
}
[data-skin="github"] body { font-size: 14px; }

/* header */
[data-skin="github"] .app-top { background: var(--subtle); border-bottom: 1px solid var(--line); }
[data-skin="github"] .gh-nav { display: flex; align-items: center; gap: 8px; height: 56px; padding: 0 16px; }
[data-skin="github"] .gh-iconbtn {
  display: inline-flex; align-items: center; justify-content: center; gap: 2px; height: 32px; min-width: 32px; padding: 0 7px;
  border: 1px solid var(--line); border-radius: 6px; color: var(--muted); background: var(--bg);
}
[data-skin="github"] .gh-mark { width: 32px; height: 32px; border-radius: 50%; background: #1f2328; flex: none; margin-left: 4px; position: relative; }
[data-skin="github"] .gh-mark::after { content: ""; position: absolute; inset: 10px 8px 9px; border: 2px solid #fff; border-top: 0; border-radius: 0 0 6px 6px; }
[data-skin="github"] .gh-crumb { display: flex; gap: 4px; align-items: center; font-size: 14px; padding-left: 4px; white-space: nowrap; }
[data-skin="github"] .gh-crumb a { padding: 2px 4px; border-radius: 6px; }
[data-skin="github"] .gh-crumb a:hover { background: rgba(129, 139, 152, .15); }
[data-skin="github"] .gh-crumb span { color: var(--muted); }
[data-skin="github"] .gh-search {
  display: inline-flex; align-items: center; gap: 8px; height: 32px; width: 280px; padding: 0 10px;
  border: 1px solid var(--line); border-radius: 6px; color: var(--muted); background: var(--bg); font-size: 13px;
}
[data-skin="github"] .gh-search kbd { font-size: 10px; }
[data-skin="github"] .skin-btn { background: var(--bg); color: var(--muted); }
[data-skin="github"] .skin-btn:hover { color: var(--fg); background: var(--subtle); }
[data-skin="github"] .gh-avatar {
  width: 32px; height: 32px; border-radius: 50%; background: #8250df; color: #fff; display: grid; place-items: center;
  font-size: 13px; font-weight: 600; flex: none;
}
[data-skin="github"] .gh-avatar.sm { width: 20px; height: 20px; font-size: 10px; }
[data-skin="github"] .gh-tabs { display: flex; gap: 4px; padding: 0 16px; overflow-x: auto; scrollbar-width: none; }
[data-skin="github"] .gh-tabs > * {
  display: inline-flex; align-items: center; gap: 8px; padding: 0 8px; height: 40px; white-space: nowrap; color: var(--fg);
  border-bottom: 2px solid transparent; position: relative;
}
[data-skin="github"] .gh-tabs > * > svg { color: var(--muted); }
[data-skin="github"] .gh-tabs a:hover::before { content: ""; position: absolute; inset: 4px 0; border-radius: 6px; background: rgba(129, 139, 152, .15); z-index: -1; }
[data-skin="github"] .gh-tabs .on { border-bottom-color: #fd8c73; font-weight: 600; }
[data-skin="github"] .gh-count {
  display: inline-block; min-width: 20px; padding: 0 6px; border-radius: 999px; background: rgba(129, 139, 152, .2);
  font-size: 12px; font-weight: 500; line-height: 18px; text-align: center;
}

/* stage */
[data-skin="github"] .app-stage { width: 100%; max-width: 1280px; margin: 0 auto; padding: 24px 32px 64px; }
[data-skin="github"] .page-head { margin-bottom: 16px; }
[data-skin="github"] .gh-repohead { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 12px; padding-bottom: 16px; border-bottom: 1px solid var(--line); margin-bottom: 8px; }
[data-skin="github"] .gh-repotitle { display: flex; align-items: center; gap: 8px; }
[data-skin="github"] .gh-repotitle h1 { font-size: 20px; font-weight: 600; }
[data-skin="github"] .gh-repoav { width: 24px; height: 24px; border-radius: 6px; background: #ddf4ff; color: #0969da; display: grid; place-items: center; font-size: 12px; font-weight: 700; }
[data-skin="github"] .gh-pill { border: 1px solid var(--line); border-radius: 999px; padding: 0 7px; font-size: 12px; color: var(--muted); font-weight: 500; line-height: 20px; }
[data-skin="github"] .gh-repoactions { display: flex; gap: 8px; flex-wrap: wrap; }
[data-skin="github"] .gh-btn {
  display: inline-flex; align-items: center; gap: 6px; height: 28px; padding: 0 10px; border-radius: 6px; white-space: nowrap;
  border: 1px solid var(--line); background: var(--subtle); font-size: 12px; font-weight: 500; color: var(--fg);
}
[data-skin="github"] .gh-btn svg { color: var(--muted); }
[data-skin="github"] .gh-btn.primary { background: var(--green-btn); border-color: rgba(31, 35, 40, .15); color: #fff; }
[data-skin="github"] .gh-btn.primary svg { color: #fff; }
[data-skin="github"] .gh-dim { display: inline-flex; align-items: center; gap: 4px; color: var(--muted); font-size: 13px; white-space: nowrap; }
[data-skin="github"] .gh-dim b { color: var(--fg); }
[data-skin="github"] .gh-mono { font-family: var(--mono); color: var(--fg); }
[data-skin="github"] .gh-green { color: var(--good); }

/* hub: file table */
[data-skin="github"] .gh-branchbar { display: flex; align-items: center; gap: 12px; margin: 8px 0 16px; }
[data-skin="github"] .gh-files { border: 1px solid var(--line); border-radius: 6px; overflow: hidden; }
[data-skin="github"] .gh-commit { display: flex; align-items: center; gap: 8px; padding: 12px 16px; background: var(--subtle); border-bottom: 1px solid var(--line); font-size: 13px; }
[data-skin="github"] .gh-commitmsg { color: var(--muted); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
[data-skin="github"] .gh-row { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, 1.6fr) 90px; gap: 16px; align-items: center; padding: 8px 16px; border-top: 1px solid var(--line); font-size: 14px; }
[data-skin="github"] .gh-commit + .gh-row { border-top: 0; }
[data-skin="github"] .gh-row:hover { background: var(--subtle); }
[data-skin="github"] .gh-rowname { display: flex; align-items: center; gap: 10px; min-width: 0; }
[data-skin="github"] .gh-rowname a:hover { color: var(--accent); text-decoration: underline; }
[data-skin="github"] .gh-rowname > span { color: var(--muted); }
[data-skin="github"] .gh-folder { color: #54aeff; }
[data-skin="github"] .gh-rowmsg { color: var(--muted); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
[data-skin="github"] .gh-rowwhen { color: var(--muted); text-align: right; font-size: 13px; white-space: nowrap; }
[data-skin="github"] .gh-readme { border: 1px solid var(--line); border-radius: 6px; margin-top: 24px; }
[data-skin="github"] .gh-readmehead { display: flex; gap: 8px; align-items: center; padding: 8px 16px; border-bottom: 1px solid var(--line); font-weight: 600; font-size: 14px; }
[data-skin="github"] .gh-md { padding: 24px 32px 32px; font-size: 15px; line-height: 1.6; }
[data-skin="github"] .gh-md h2 { font-size: 30px; font-weight: 600; padding-bottom: 8px; border-bottom: 1px solid var(--line); margin-bottom: 16px; }
[data-skin="github"] .gh-md h3 { font-size: 20px; font-weight: 600; padding-bottom: 6px; border-bottom: 1px solid var(--line); margin: 24px 0 16px; }
[data-skin="github"] .gh-md ul { padding-left: 2em; margin: 0; }
[data-skin="github"] .gh-md li + li { margin-top: 4px; }

/* hub: sidebar */
[data-skin="github"] .gh-side { padding: 0 0 24px; }
[data-skin="github"] .gh-side + .gh-side { padding-top: 24px; border-top: 1px solid var(--line); }
[data-skin="github"] .gh-side h2 { font-size: 16px; font-weight: 600; margin-bottom: 16px; display: flex; gap: 6px; align-items: center; }
[data-skin="github"] .gh-side p { font-size: 15px; line-height: 1.5; }
[data-skin="github"] .gh-sidelist { list-style: none; padding: 0; margin: 16px 0 0; color: var(--muted); font-size: 13px; }
[data-skin="github"] .gh-sidelist li { display: flex; align-items: center; gap: 8px; margin-top: 8px; }
[data-skin="github"] .gh-release { display: flex; gap: 8px; align-items: flex-start; }
[data-skin="github"] .gh-release > svg { margin-top: 3px; }
[data-skin="github"] .gh-latest { border: 1px solid var(--good); color: var(--good); border-radius: 999px; padding: 0 7px; font-size: 12px; font-weight: 500; }
[data-skin="github"] .gh-cdlabel { margin-top: 6px; }
[data-skin="github"] .cd-input { border: 1px solid var(--line); border-radius: 6px; padding: 2px 6px; font-size: 12px; background: var(--bg); }
[data-skin="github"] .gh-langbar { display: flex; height: 8px; border-radius: 6px; overflow: hidden; gap: 2px; }
[data-skin="github"] .gh-langs { list-style: none; padding: 0; margin: 8px 0 0; display: flex; flex-wrap: wrap; gap: 4px 16px; font-size: 12px; color: var(--muted); }
[data-skin="github"] .gh-langs i { display: inline-block; width: 8px; height: 8px; border-radius: 50%; margin-right: 6px; }
[data-skin="github"] .gh-langs b { color: var(--fg); font-weight: 600; margin-right: 2px; }

/* match: issue page */
[data-skin="github"] .gh-issuehead { padding-bottom: 16px; border-bottom: 1px solid var(--line); margin-bottom: 8px; }
[data-skin="github"] .gh-issuehead h1 { font-size: 32px; font-weight: 400; line-height: 1.25; margin-bottom: 8px; }
[data-skin="github"] .gh-num { color: var(--muted); font-weight: 300; }
[data-skin="github"] .gh-issuemeta { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; color: var(--muted); font-size: 14px; }
[data-skin="github"] .gh-issuemeta b { color: var(--fg); }
[data-skin="github"] .gh-state { display: inline-flex; align-items: center; gap: 4px; background: var(--green-btn); color: #fff; padding: 5px 12px; border-radius: 999px; font-weight: 500; }
[data-skin="github"] body[data-page="match"] { --rail-w: 256px; }

/* timeline entries */
[data-skin="github"] .timeline { position: relative; padding-top: 8px; }
[data-skin="github"] .timeline::before { content: ""; position: absolute; top: 0; bottom: 0; left: 72px; width: 2px; background: var(--line); }
[data-skin="github"] .entry { position: relative; margin: 0 0 16px 56px; border: 1px solid var(--line); border-radius: 6px; background: var(--bg); }
[data-skin="github"] .entry-av {
  position: absolute; left: -56px; top: 0; width: 40px; height: 40px; border-radius: 50%; display: grid; place-items: center;
  font-size: 12px; font-weight: 600; color: #fff;
}
[data-skin="github"] .entry::after { content: ""; position: absolute; left: -8px; top: 12px; width: 14px; height: 14px; background: var(--subtle); border-left: 1px solid var(--line); border-bottom: 1px solid var(--line); transform: rotate(45deg); }
[data-skin="github"] .entry-head {
  display: flex; align-items: center; gap: 8px; flex-wrap: wrap; padding: 8px 16px; background: var(--subtle);
  border-bottom: 1px solid var(--line); border-radius: 6px 6px 0 0; font-size: 14px; color: var(--muted); position: relative; z-index: 1;
}
[data-skin="github"] .entry-title { color: var(--fg); font-weight: 600; }
[data-skin="github"] .entry-score { margin-left: auto; border: 1px solid var(--line); border-radius: 999px; padding: 0 8px; font-size: 12px; font-weight: 500; color: var(--fg); background: var(--bg); }
[data-skin="github"] .entry-body { padding: 16px; font-size: 14px; line-height: 1.6; }
[data-skin="github"] .entry-body p + p { margin-top: 10px; }
[data-skin="github"] .entry-body .chips, [data-skin="github"] .entry-body .mission { margin-top: 12px; }
[data-skin="github"] .entry-body .criterion { color: var(--muted); }
[data-skin="github"] .entry-body .criterion b { color: var(--fg); }
[data-skin="github"] .entry.solo { border-color: #d4a72c; }
[data-skin="github"] .entry.solo .entry-head { background: #fff8c5; border-bottom-color: #d4a72c; }
[data-skin="github"] .entry.solo::after { background: #fff8c5; border-color: #d4a72c; }
[data-skin="github"] .entry.composer::after { background: var(--bg); }
[data-skin="github"] .composer .entry-head { background: var(--bg); }
[data-skin="github"] .composer .name-input {
  width: 100%; min-height: 46px; padding: 7px 8px;
  border: 1px solid var(--line); border-radius: 6px; background: var(--subtle); 
}
[data-skin="github"] .composer .name-input:focus-within { background: var(--bg); outline: 2px solid var(--accent); outline-offset: -1px; }
[data-skin="github"] .composer-foot { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-top: 8px; flex-wrap: wrap; }
[data-skin="github"] .btn {
  display: inline-flex; align-items: center; gap: 6px; height: 32px; padding: 0 16px; border-radius: 6px; cursor: pointer;
  border: 1px solid rgba(31, 35, 40, .15); background: var(--subtle); font-size: 14px; font-weight: 500; white-space: nowrap;
}
[data-skin="github"] .btn:hover { background: #eff2f5; }
[data-skin="github"] .btn.primary { background: var(--green-btn); color: #fff; }
[data-skin="github"] .btn.primary:hover { background: #1c8139; }
[data-skin="github"] .result-actions { display: flex; gap: 8px; margin-left: 56px; flex-wrap: wrap; }
[data-skin="github"] .ritual { margin-left: 56px; }

/* match: sidebar (assignees / labels style) */
[data-skin="github"] .field { padding: 0 0 16px; border-bottom: 1px solid var(--line); margin-bottom: 16px; font-size: 12px; }
[data-skin="github"] .field-label { font-size: 12px; font-weight: 600; color: var(--muted); margin-bottom: 8px; }
[data-skin="github"] .mode { display: flex; gap: 8px; align-items: flex-start; padding: 6px 8px; margin: 0 -8px; border-radius: 6px; cursor: pointer; }
[data-skin="github"] .mode:hover { background: var(--subtle); }
[data-skin="github"] .mode input { margin: 3px 0 0; accent-color: var(--accent); }
[data-skin="github"] .mode b { display: block; font-size: 13px; font-weight: 600; }
[data-skin="github"] .mode small { color: var(--muted); font-size: 12px; }
[data-skin="github"] .labels { display: flex; flex-wrap: wrap; gap: 4px; }
[data-skin="github"] .lbl { border-radius: 999px; padding: 0 8px; font-size: 12px; font-weight: 500; line-height: 20px; }
[data-skin="github"] .lbl.l1 { background: #ddf4ff; color: #0550ae; } [data-skin="github"] .lbl.l2 { background: #fbefff; color: #8250df; }
[data-skin="github"] .lbl.l3 { background: #dafbe1; color: #1a7f37; } [data-skin="github"] .lbl.l4 { background: #fff1e5; color: #bc4c00; }

@media (max-width: 800px) {
  [data-skin="github"] .app-stage { padding: 16px 16px 48px; }
  [data-skin="github"] .gh-nav { padding: 0 12px; }
  [data-skin="github"] .gh-crumb { min-width: 0; overflow: hidden; }
  [data-skin="github"] .gh-crumb > :not(:last-child) { display: none; }
  [data-skin="github"] .gh-search { width: 32px; padding: 0 7px; }
  [data-skin="github"] .gh-search span { display: none; }
  [data-skin="github"] .gh-row { grid-template-columns: minmax(0, 1fr) 72px; }
  [data-skin="github"] .gh-rowmsg { display: none; }
  [data-skin="github"] .gh-md { padding: 16px; }
  [data-skin="github"] .gh-issuehead h1 { font-size: 24px; }
  [data-skin="github"] .timeline::before, [data-skin="github"] .entry-av, [data-skin="github"] .entry::after { display: none; }
  [data-skin="github"] .entry, [data-skin="github"] .result-actions, [data-skin="github"] .ritual { margin-left: 0; }
}

/* insights / discussions page header */
[data-skin="github"] .gh-subhead { padding-bottom: 12px; border-bottom: 1px solid var(--line); margin-bottom: 8px; }
[data-skin="github"] .gh-subhead h1 { font-size: 24px; font-weight: 400; }
[data-skin="github"] .gh-subhead p { color: var(--muted); font-size: 14px; margin-top: 4px; }