/* shared/lib/review.css — review view styles, GitHub PR-diff palette.
 * Light by default, dark under prefers-color-scheme: dark. Surfaces set
 * only page chrome on top of these tokens. */

:root {
  --bg: #ffffff;
  --surface: #f6f8fa;
  --border: #d1d9e0;
  --text: #1f2328;
  --text-dim: #59636e;
  --accent: #0969da;
  --green: #1a7f37;
  --red: #d1242f;
  --green-emphasis: #1a7f37;
  --red-emphasis: #d1242f;
  --yellow: #9a6700;
  --btn-bg: #f6f8fa;
  --btn-border: #d1d9e0;
  --primary: #1f883d;
  --add-bg: #dafbe1;
  --add-num-bg: #d1f8d9;
  --del-bg: #ffebe9;
  --del-num-bg: #ffd7d5;
  --hunk-bg: #ddf4ff;
  --hunk-text: #59636e;
  --current: #0969da;
  --banner-bg: #fff8c5;
  --banner-border: #d4a72c;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans", Helvetica, Arial, sans-serif;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0d1117;
    --surface: #151b23;
    --border: #3d444d;
    --text: #f0f6fc;
    --text-dim: #9198a1;
    --accent: #4493f8;
    --green: #3fb950;
    --red: #f85149;
    --green-emphasis: #238636;
    --red-emphasis: #da3633;
    --yellow: #d29922;
    --btn-bg: #212830;
    --btn-border: #3d444d;
    --primary: #238636;
    --add-bg: #12261e;
    --add-num-bg: #1a4a29;
    --del-bg: #25171c;
    --del-num-bg: #542426;
    --hunk-bg: #121d2f;
    --hunk-text: #9198a1;
    --current: #4493f8;
    --banner-bg: #272115;
    --banner-border: #9e6a03;
    color-scheme: dark;
  }
}

.taproot-review {
  display: grid;
  grid-template-columns: minmax(200px, 280px) minmax(0, 1fr);
  gap: 16px;
  align-items: start;
  font-family: var(--sans);
  font-size: 14px;
  color: var(--text);
}

/* ---------- Sidebar tree ---------- */
.taproot-tree {
  position: sticky; top: calc(var(--taproot-sticky-top, 0px) + 12px);
  max-height: calc(100vh - var(--taproot-sticky-top, 0px) - 24px); overflow: auto;
  border: 1px solid var(--border); border-radius: 6px;
  background: var(--bg); padding: 8px 0;
}
.taproot-progress {
  display: flex; flex-direction: column; gap: 6px;
  padding: 0 12px 8px; margin-bottom: 4px;
  border-bottom: 1px solid var(--border);
  font-size: 12px; color: var(--text-dim);
}
.taproot-bar { height: 6px; border-radius: 3px; background: var(--surface); overflow: hidden; border: 1px solid var(--border); }
.taproot-bar > span { display: block; height: 100%; background: var(--green); }
.taproot-tree ul { list-style: none; margin: 0; padding: 0 0 0 14px; }
.taproot-tree > ul { padding-left: 4px; }
.taproot-tree-row {
  display: flex; align-items: center; gap: 6px;
  padding: 3px 8px 3px 2px; border-radius: 6px; cursor: pointer;
  white-space: nowrap; font-size: 13px;
}
.taproot-tree-row:hover { background: var(--surface); }
.taproot-tree-row.current { background: var(--surface); box-shadow: inset 2px 0 0 var(--current); }
.taproot-tree-row.ref { color: var(--text-dim); font-style: italic; }
.taproot-tree-name {
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
  font: inherit; font-family: var(--mono); font-size: 12px; text-align: left;
  margin: 0; padding: 0 2px; border: 0; border-radius: 3px;
  background: none; color: inherit; cursor: inherit;
}
.taproot-tree-name:focus-visible, .taproot-twisty:focus-visible { outline: 2px solid var(--current); outline-offset: -1px; }
.taproot-twisty {
  width: 16px; flex: none; padding: 0; border: 0; background: none;
  color: var(--text-dim); cursor: pointer; font-size: 10px;
}
.taproot-group {
  display: flex; flex-direction: column; gap: 2px;
  margin-top: 6px; padding: 6px 8px 4px 4px; border-top: 1px solid var(--border);
  font-size: 12px; color: var(--text-dim); white-space: normal;
}
.taproot-group strong { color: var(--text); font-weight: 600; }
.taproot-files > .taproot-group { margin: 0 0 12px; padding: 4px 0 0; border-top: 0; font-size: 13px; }
.taproot-dot { width: 8px; height: 8px; flex: none; border-radius: 50%; border: 1px solid var(--text-dim); }
.taproot-dot.status-accepted { background: var(--green); border-color: var(--green); }
.taproot-dot.status-rejected { background: var(--red); border-color: var(--red); border-radius: 1px; }
.taproot-dot.status-reviewed { background: var(--text-dim); }
.taproot-dot.status-ref { border-style: dashed; }

@media (max-width: 900px) {
  .taproot-review { grid-template-columns: minmax(0, 1fr); }
  .taproot-tree { top: auto; position: static; max-height: 40vh; }
}

/* ---------- Banner ---------- */
.taproot-banner {
  margin-bottom: 16px; padding: 10px 14px; border-radius: 6px;
  background: var(--banner-bg); border: 1px solid var(--banner-border);
  font-size: 13px;
}

.taproot-empty {
  margin: 0; padding: 32px 16px; text-align: center; color: var(--text-dim);
  border: 1px dashed var(--border); border-radius: 6px;
}

/* ---------- Cards ---------- */
.taproot-card {
  border: 1px solid var(--border); border-radius: 6px;
  margin-bottom: 16px; background: var(--bg);
  scroll-margin-top: calc(var(--taproot-sticky-top, 0px) + 8px);
}
.taproot-card.current { outline: 2px solid var(--current); outline-offset: -1px; }
.taproot-card-head {
  display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
  padding: 6px 10px; background: var(--surface);
  border-bottom: 1px solid var(--border); border-radius: 6px 6px 0 0;
  position: sticky; top: var(--taproot-sticky-top, 0px); z-index: 1; cursor: pointer;
}
.taproot-card.folded .taproot-card-head { border-bottom: 0; border-radius: 6px; }
.taproot-card.folded .taproot-card-body, .taproot-card.folded .taproot-notes { display: none; }
.taproot-card.folded .taproot-fold { transform: rotate(-90deg); }
.taproot-fold { border: 0; background: none; color: var(--text-dim); cursor: pointer; padding: 0 2px; }
.taproot-title { flex: 1 1 16ch; min-width: 0; overflow-wrap: anywhere; display: flex; align-items: baseline; gap: 8px; flex-wrap: wrap; }
.taproot-crumbs, .taproot-symbol, .taproot-path { cursor: text; }
.taproot-crumbs { color: var(--text-dim); font-family: var(--mono); font-size: 12px; }
.taproot-symbol { font-family: var(--mono); font-size: 13px; }
.taproot-path { color: var(--text-dim); font-family: var(--mono); font-size: 12px; overflow-wrap: anywhere; }
.taproot-stat { font-family: var(--mono); font-size: 12px; }
.taproot-stat .add { color: var(--green); }
.taproot-stat .del { color: var(--red); }
.taproot-status {
  font-size: 12px; padding: 0 8px; line-height: 20px; border-radius: 10px;
  border: 1px solid var(--border); color: var(--text-dim);
}
.status-accepted .taproot-status { color: var(--green); border-color: var(--green); }
.status-rejected .taproot-status { color: var(--red); border-color: var(--red); }
.taproot-actions { display: flex; gap: 4px; }
.taproot-actions button, .taproot-comment-bar button {
  font: 500 12px var(--sans); padding: 3px 10px; border-radius: 6px; cursor: pointer;
  background: var(--btn-bg); color: var(--text); border: 1px solid var(--btn-border);
}
.taproot-actions button:hover, .taproot-comment-bar button:hover { border-color: var(--text-dim); }
.status-accepted [data-status="accepted"] { color: #fff; background: var(--green-emphasis); border-color: var(--green-emphasis); }
.status-rejected [data-status="rejected"] { color: #fff; background: var(--red-emphasis); border-color: var(--red-emphasis); }
.status-reviewed [data-status="reviewed"] { background: var(--surface); border-color: var(--text-dim); font-weight: 600; }

.taproot-notes {
  display: flex; flex-wrap: wrap; gap: 4px 16px;
  padding: 6px 12px; border-bottom: 1px solid var(--border);
  font-size: 12px; color: var(--text-dim);
}
.taproot-notes b { font-weight: 600; }
.taproot-notes code { font-family: var(--mono); color: var(--text); overflow-wrap: anywhere; }

/* ---------- Diff table ---------- */
.taproot-card-body { overflow-x: auto; }
.taproot-diff {
  width: 100%; border-collapse: collapse; table-layout: auto;
  font-family: var(--mono); font-size: 12px; line-height: 20px;
}
.taproot-diff td { padding: 0; vertical-align: top; }
.taproot-diff .num {
  width: 1%; min-width: 44px; padding: 0 8px; text-align: right;
  color: var(--text-dim); user-select: none; white-space: nowrap;
}
.taproot-diff .code { padding: 0 10px 0 0; white-space: pre; tab-size: 4; color: var(--text); }
.taproot-diff .marker { display: inline-block; width: 22px; text-align: center; user-select: none; }
.taproot-diff tr.add .code { background: var(--add-bg); }
.taproot-diff tr.add .num { background: var(--add-num-bg); color: var(--text); }
.taproot-diff tr.del .code { background: var(--del-bg); }
.taproot-diff tr.del .num { background: var(--del-num-bg); color: var(--text); }
.taproot-diff tr.hunk td { background: var(--hunk-bg); color: var(--hunk-text); }
.taproot-diff tr.hunk .code { padding: 2px 10px; }
.taproot-diff tr.eof .code { padding-left: 22px; color: var(--text-dim); font-style: italic; }

/* ---------- Comments ---------- */
.taproot-comment { border-top: 1px solid var(--border); }
.taproot-comment:has(.taproot-comment-saved[hidden]):has(form[hidden]) { display: none; }
.taproot-comment-saved { padding: 8px 12px; font-size: 13px; cursor: pointer; }
.taproot-comment-saved p { margin: 4px 0 0; white-space: pre-wrap; }
.taproot-comment-form { padding: 8px 12px; background: var(--surface); }
.taproot-comment-form textarea {
  width: 100%; box-sizing: border-box; resize: vertical;
  padding: 8px; border-radius: 6px; border: 1px solid var(--border);
  background: var(--bg); color: var(--text); font: 13px var(--sans);
}
.taproot-comment-bar { display: flex; align-items: center; gap: 6px; margin-top: 6px; }
.taproot-hint { flex: 1; font-size: 12px; color: var(--text-dim); }
.taproot-comment-bar .primary { background: var(--primary); border-color: var(--primary); color: #fff; }

/* ---------- highlight.js tokens (GitHub light / dark) ---------- */
.hljs-comment, .hljs-meta { color: #59636e; }
.hljs-keyword, .hljs-selector-tag, .hljs-built_in, .hljs-name, .hljs-tag { color: #cf222e; }
.hljs-string, .hljs-regexp, .hljs-attr { color: #0a3069; }
.hljs-number, .hljs-literal, .hljs-property, .hljs-symbol, .hljs-variable.language_ { color: #0550ae; }
.hljs-type, .hljs-title.class_ { color: #953800; }
.hljs-title.function_, .hljs-function .hljs-title { color: #8250df; }
@media (prefers-color-scheme: dark) {
  .hljs-comment, .hljs-meta { color: #9198a1; }
  .hljs-keyword, .hljs-selector-tag, .hljs-built_in, .hljs-name, .hljs-tag { color: #ff7b72; }
  .hljs-string, .hljs-regexp, .hljs-attr { color: #a5d6ff; }
  .hljs-number, .hljs-literal, .hljs-property, .hljs-symbol, .hljs-variable.language_ { color: #79c0ff; }
  .hljs-type, .hljs-title.class_ { color: #ffa657; }
  .hljs-title.function_, .hljs-function .hljs-title { color: #d2a8ff; }
}