:root {
  --bg: #f7f8fa;
  --card: #ffffff;
  --text: #111827;
  --muted: #6b7280;
  --border: #e5e7eb;
  --brand: #3c7b79; /* close to your SharePoint teal */
  --brand2: rgba(255,255,255,0.12);
  --shadow: 0 1px 2px rgba(0,0,0,0.06);
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji";
  background: var(--bg);
  color: var(--text);
}

.topbar {
  background: var(--brand);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 18px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
}

.brand img {
  height: 42px;
  width: auto;
  border-radius: 10px;
  background: #fff;
  padding: 6px;
}

.brand .title {
  font-size: 18px;
}

.nav {
  display: flex;
  gap: 10px;
}

.nav a {
  color: #fff;
  text-decoration: none;
  background: var(--brand2);
  padding: 8px 12px;
  border-radius: 12px;
  font-weight: 600;
  font-size: 13px;
  border: 1px solid rgba(255,255,255,0.18);
}

.nav a.active {
  background: #fff;
  color: var(--brand);
  border-color: #fff;
}

.container {
  max-width: 1200px;
  margin: 20px auto;
  padding: 0 16px;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 16px;
  box-shadow: var(--shadow);
}

.grid {
  display: grid;
  grid-template-columns: 360px 1fr;
  gap: 16px;
}

h1 { margin: 0 0 10px; font-size: 20px; }
h2 { margin: 0; font-size: 18px; }

.muted { color: var(--muted); font-size: 13px; }
.tiny { font-size: 12px; }
.small { font-size: 12px; color: var(--muted); }

/* Home */
.homeCards { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.homeCard a {
  display: block;
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 14px;
  text-decoration: none;
  color: inherit;
  background: #fafafa;
}
.homeCard a:hover { background: #f5f5f5; }
.homeCard h3 { margin: 0 0 6px; }
.homeCard p { margin: 0; color: var(--muted); }

/* Search */
.search {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 10px 12px;
  outline: none;
  margin-bottom: 10px;
  font-size: 14px;
}

.search:focus {
  border-color: rgba(60,123,121,0.6);
  box-shadow: 0 0 0 3px rgba(60,123,121,0.15);
}

/* Lists */
.list {
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: auto;
  max-height: 560px;
  background: #fff;
}

.groupHeader {
  padding: 8px 10px;
  font-size: 12px;
  font-weight: 800;
  color: var(--muted);
  background: #f3f4f6;
  border-bottom: 1px solid var(--border);
}

.listItem {
  width: 100%;
  text-align: left;
  background: #fff;
  border: 0;
  border-bottom: 1px solid var(--border);
  padding: 10px 10px;
  cursor: pointer;
}

.listItem:hover { background: #f9fafb; }

.liTitle { font-weight: 700; font-size: 13px; }
.liSub { font-size: 12px; color: var(--muted); margin-top: 2px; }

/* Selected panel */
.selHeader {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 10px;
}

.selActions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.btn {
  border: 0;
  border-radius: 12px;
  padding: 9px 12px;
  font-weight: 700;
  cursor: pointer;
  background: var(--brand);
  color: #fff;
  font-size: 13px;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
}

.btn.ghost {
  background: #eef2ff;
  color: #3730a3;
}

.tags { margin-top: 10px; display: flex; gap: 6px; flex-wrap: wrap; }
.pill {
  font-size: 12px;
  padding: 5px 8px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: #fafafa;
}

.viewerFrame {
  margin-top: 12px;
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  height: 520px;
  background: #fff;
}

.viewerFrame iframe {
  width: 100%;
  height: 100%;
  border: 0;
}

.viewerMsg {
  padding: 12px;
  color: var(--muted);
  font-size: 13px;
}

code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  font-size: 12px;
  background: #f3f4f6;
  padding: 2px 6px;
  border-radius: 8px;
}

@media (max-width: 900px) {
  .grid { grid-template-columns: 1fr; }
  .homeCards { grid-template-columns: 1fr; }
  .list { max-height: 420px; }
  .viewerFrame { height: 360px; }
}


.buildBadge{position:fixed;bottom:10px;right:12px;font-size:12px;opacity:.6;background:#fff;padding:6px 8px;border-radius:8px;border:1px solid rgba(0,0,0,.08);}


/* v4 simple list */
.docList{display:flex;flex-direction:column;gap:8px}
.docItem{display:block;padding:12px 12px;border:1px solid var(--border);border-radius:12px;background:#fff;text-decoration:none;color:inherit}
.docItem:hover{box-shadow:0 6px 18px rgba(0,0,0,.06)}
.docTitle{font-weight:700}
.docSub{margin-top:2px;color:var(--muted);font-size:.92rem}

.pill.active{background:rgba(255,255,255,.22);border-color:rgba(255,255,255,.22)}