/* FORUM.CAPIT.NET — Microsoft Teams-Inspired 3-Pane Widget & Standalone Stylesheet
   Safe inside Shadow DOM (:host) and standalone document (forum.html). */
:host, .cf-root {
  --cf-accent: #0f766e;
  --cf-accent-hover: #0d5f59;
  --cf-accent-soft: rgba(15, 118, 110, 0.11);
  --cf-bg: #ffffff;
  --cf-nav-bg: #f3f5f8;
  --cf-list-bg: #fafbfd;
  --cf-surface: #ffffff;
  --cf-text: #1c2430;
  --cf-muted: #5b6577;
  --cf-border: #dfe4ee;
  --cf-unread-bg: #fff8e6;
  --cf-unread-line: #d97706;
  --cf-green-cta: #15803d;
  --cf-green-cta-hover: #166534;
  display: block;
  width: 100%;
  max-width: 100%;
  font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  font-size: 14px;
  line-height: 1.5;
  color: var(--cf-text);
  background: var(--cf-bg);
  box-sizing: border-box;
  container-type: inline-size;
}

:host([theme="dark"]), .cf-root[data-theme="dark"] {
  --cf-bg: #171a21;
  --cf-nav-bg: #11141a;
  --cf-list-bg: #1c2029;
  --cf-surface: #232834;
  --cf-text: #eef1f7;
  --cf-muted: #9aa4b8;
  --cf-border: #2e3545;
  --cf-accent-soft: rgba(45, 212, 191, 0.16);
  --cf-unread-bg: rgba(217, 119, 6, 0.16);
}

.cf-root *, .cf-root *::before, .cf-root *::after {
  box-sizing: border-box;
}
.cf-root [hidden] {
  display: none !important;
}

/* Affection.org Green CTA Bar when authenticated member has no ad (hasAd === false) */
.cf-affection-bar, .cf-affection-ad-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 10px 16px;
  background: #ecfdf5;
  border: 1px solid #bbf7d0;
  border-bottom: 0;
  border-radius: 12px 12px 0 0;
}
.cf-affection-btn, .cf-affection-ad-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 9px 22px;
  border-radius: 999px;
  background: var(--cf-green-cta);
  color: #ffffff !important;
  font-weight: 700;
  font-size: 14px;
  text-decoration: none;
  border: 1px solid #166534;
  box-shadow: 0 2px 6px rgba(21, 128, 61, 0.25);
  transition: background 0.15s ease;
}
.cf-affection-btn:hover, .cf-affection-ad-btn:hover {
  background: var(--cf-green-cta-hover);
}

/* 3-Zone Teams Shell */
.cf-shell {
  display: grid;
  grid-template-columns: 240px 330px minmax(0, 1fr);
  height: var(--cf-height, 680px);
  min-height: 540px;
  max-width: 100%;
  border: 1px solid var(--cf-border);
  border-radius: 12px;
  overflow: hidden;
  background: var(--cf-bg);
}
.cf-root.cf-fullpage .cf-shell {
  height: calc(100dvh - 34px);
  border-radius: 0;
  border-left: 0;
  border-right: 0;
}
.cf-root[data-single-channel="true"] .cf-shell {
  grid-template-columns: 215px 330px minmax(0, 1fr);
}

/* Shared Controls */
.cf-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 7px 13px;
  border-radius: 8px;
  border: 1px solid transparent;
  font: inherit;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  white-space: nowrap;
}
.cf-btn-sm { padding: 5px 10px; font-size: 12.5px; }
.cf-btn-primary { background: var(--cf-accent); color: #ffffff; }
.cf-btn-primary:hover { background: var(--cf-accent-hover); }
.cf-btn-ghost { background: var(--cf-surface); color: var(--cf-text); border-color: var(--cf-border); }
.cf-btn-ghost:hover { border-color: var(--cf-accent); color: var(--cf-accent); }
.cf-btn-subtle { background: var(--cf-accent-soft); color: var(--cf-accent); border-color: var(--cf-accent); }
.cf-w-full { width: 100%; }

.cf-icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 26px;
  height: 26px;
  padding: 0 5px;
  border: 0;
  border-radius: 6px;
  background: transparent;
  color: var(--cf-muted);
  font: inherit;
  font-size: 13px;
  cursor: pointer;
}
.cf-icon-btn:hover:not(:disabled) { background: rgba(0, 0, 0, 0.06); color: var(--cf-text); }
.cf-icon-btn:disabled { opacity: 0.35; cursor: default; }
.cf-icon-btn.is-starred { color: #d97706; }

.cf-link-btn {
  border: 0;
  background: transparent;
  color: var(--cf-muted);
  font: inherit;
  font-size: 12px;
  font-weight: 500;
  padding: 3px 6px;
  border-radius: 5px;
  cursor: pointer;
}
.cf-link-btn:hover { background: var(--cf-nav-bg); color: var(--cf-accent); }
.cf-link-btn.cf-danger:hover { color: #dc2626; }

.cf-input, .cf-textarea, .cf-select {
  width: 100%;
  padding: 8px 10px;
  border-radius: 8px;
  border: 1px solid var(--cf-border);
  background: var(--cf-surface);
  color: var(--cf-text);
  font: inherit;
  font-size: 13.5px;
}
.cf-select-sm { width: auto; padding: 5px 8px; font-size: 12px; }
.cf-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 20px;
  height: 20px;
  padding: 0 7px;
  border-radius: 999px;
  background: var(--cf-accent);
  color: #ffffff;
  font-size: 11px;
  font-weight: 700;
  flex-shrink: 0;
}
.cf-pill-count {
  font-size: 11.5px;
  color: var(--cf-muted);
  font-weight: 600;
}
.cf-muted { color: var(--cf-muted); font-size: 12.5px; }
.cf-px { padding: 4px 10px; }
.cf-row-end { display: flex; justify-content: flex-end; gap: 8px; margin-top: 8px; }
.cf-mobile-back {
  display: none;
  padding: 5px 9px;
  border-radius: 7px;
  border: 1px solid var(--cf-border);
  background: var(--cf-surface);
  color: var(--cf-text);
  font: inherit;
  font-size: 12.5px;
  font-weight: 600;
  cursor: pointer;
}

/* ZONE 1: Left Navigation Column */
.cf-nav {
  display: flex;
  flex-direction: column;
  background: var(--cf-nav-bg);
  border-right: 1px solid var(--cf-border);
  min-width: 0;
  overflow: hidden;
}
.cf-nav-top {
  padding: 12px 12px 10px;
  border-bottom: 1px solid var(--cf-border);
}
.cf-space-title-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 8px;
}
.cf-space-title {
  font-weight: 700;
  font-size: 14.5px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.cf-space-actions { display: flex; align-items: center; gap: 4px; }
.cf-notif-btn { position: relative; }
.cf-search-box {
  display: flex;
  align-items: center;
  gap: 4px;
  background: var(--cf-surface);
  border: 1px solid var(--cf-border);
  border-radius: 8px;
  padding: 2px 6px;
}
.cf-search-input {
  flex: 1;
  min-width: 0;
  border: 0;
  background: transparent;
  color: var(--cf-text);
  font: inherit;
  font-size: 13px;
  padding: 5px 4px;
  outline: none;
}
.cf-nav-scroll {
  flex: 1;
  overflow-y: auto;
  padding: 8px 10px;
}
.cf-nav-section { margin-bottom: 12px; }
.cf-nav-heading {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--cf-muted);
  padding: 4px 8px;
}
.cf-channel-row, .cf-fav-row {
  display: flex;
  align-items: center;
  gap: 2px;
}
.cf-fav-controls { display: inline-flex; gap: 1px; flex-shrink: 0; }
.cf-nav-item {
  flex: 1;
  min-width: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 6px;
  width: 100%;
  padding: 6px 9px;
  border: 0;
  border-radius: 7px;
  background: transparent;
  color: var(--cf-text);
  font: inherit;
  font-size: 13px;
  text-align: left;
  cursor: pointer;
}
.cf-nav-item:hover { background: rgba(0, 0, 0, 0.05); }
.cf-nav-item.is-active {
  background: var(--cf-accent-soft);
  color: var(--cf-accent);
  font-weight: 650;
}
.cf-nav-label {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.cf-notif-drawer {
  margin-bottom: 8px;
  padding: 8px 10px;
  border-radius: 8px;
  border: 1px solid var(--cf-border);
  background: var(--cf-surface);
  max-height: 190px;
  overflow-y: auto;
}
.cf-notif-drawer-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 6px;
  font-size: 12px;
}
.cf-notif-item {
  padding: 5px 0;
  border-top: 1px solid var(--cf-border);
  font-size: 12px;
}
.cf-nav-bottom {
  padding: 10px 12px;
  border-top: 1px solid var(--cf-border);
  background: var(--cf-surface);
}
.cf-nav-member { display: flex; align-items: center; gap: 8px; }
.cf-nav-member-meta { display: flex; flex-direction: column; min-width: 0; font-size: 12.5px; line-height: 1.25; }
.cf-nav-member-meta small { color: var(--cf-muted); font-size: 11px; }
.cf-guest-box { display: flex; flex-direction: column; gap: 6px; }
.cf-guest-title { font-size: 12px; font-weight: 600; }
.cf-guest-row { display: flex; gap: 6px; }

/* ZONE 2: Center Column — Discussions */
.cf-topics {
  display: flex;
  flex-direction: column;
  background: var(--cf-list-bg);
  border-right: 1px solid var(--cf-border);
  min-width: 0;
  overflow: hidden;
}
.cf-pane-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 11px 12px;
  border-bottom: 1px solid var(--cf-border);
  background: var(--cf-surface);
}
.cf-pane-title {
  margin: 0;
  font-size: 14.5px;
  font-weight: 700;
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.cf-new-topic-card {
  padding: 10px 12px;
  border-bottom: 1px solid var(--cf-border);
  background: var(--cf-surface);
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.cf-topic-list {
  flex: 1;
  overflow-y: auto;
  padding: 8px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.cf-topic-card {
  display: flex;
  flex-direction: column;
  gap: 6px;
  width: 100%;
  padding: 10px 12px;
  border-radius: 9px;
  border: 1px solid var(--cf-border);
  background: var(--cf-surface);
  color: var(--cf-text);
  font: inherit;
  text-align: left;
  cursor: pointer;
}
.cf-topic-card:hover { border-color: var(--cf-accent); }
.cf-topic-card.is-active {
  border-color: var(--cf-accent);
  background: var(--cf-accent-soft);
}
.cf-topic-card.has-unread .cf-topic-title { font-weight: 750; }
.cf-topic-card-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 8px;
}
.cf-topic-title {
  font-size: 13.5px;
  font-weight: 600;
  line-height: 1.35;
  overflow-wrap: anywhere;
}
.cf-topic-card-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 5px;
  font-size: 11.5px;
  color: var(--cf-muted);
}
.cf-tag {
  display: inline-block;
  padding: 1px 6px;
  border-radius: 5px;
  background: var(--cf-nav-bg);
  font-size: 11px;
  font-weight: 600;
  margin-right: 4px;
}

/* ZONE 3: Right Column — Reader & Composer */
.cf-reader {
  display: flex;
  flex-direction: column;
  background: var(--cf-bg);
  min-width: 0;
  overflow: hidden;
}
.cf-reader-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 11px 16px;
  border-bottom: 1px solid var(--cf-border);
  background: var(--cf-surface);
  flex-wrap: wrap;
}
.cf-reader-title-wrap {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
  flex: 1;
}
.cf-reader-title {
  margin: 0;
  font-size: 15.5px;
  font-weight: 700;
  line-height: 1.35;
  overflow-wrap: anywhere;
}
.cf-reader-actions {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

.cf-posts-viewport {
  position: relative;
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: column;
}
.cf-posts-scroll {
  flex: 1;
  overflow-y: auto;
  padding: 14px 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.cf-older-wrap { display: flex; justify-content: center; padding-bottom: 4px; }
.cf-empty {
  padding: 36px 20px;
  text-align: center;
  color: var(--cf-muted);
  font-size: 13.5px;
}

/* Unread Separator (Section 5) */
.cf-unread-sep {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 6px 0;
  color: var(--cf-unread-line);
  font-size: 12px;
  font-weight: 700;
}
.cf-unread-sep::before,
.cf-unread-sep::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--cf-unread-line);
  opacity: 0.55;
}

/* Chronological Post Card */
.cf-post {
  display: grid;
  grid-template-columns: 36px minmax(0, 1fr);
  gap: 10px;
  padding: 11px 13px;
  border-radius: 10px;
  border: 1px solid var(--cf-border);
  background: var(--cf-surface);
}
.cf-post.cf-post-ai {
  border-color: #8b5cf6;
  background: rgba(139, 92, 246, 0.05);
}
.cf-avatar, .cf-post-avatar {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--cf-accent);
  color: #ffffff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 12.5px;
  font-weight: 700;
  flex-shrink: 0;
}
.cf-post.cf-post-ai .cf-post-avatar { background: #7c3aed; }
.cf-post-main { min-width: 0; }
.cf-post-head {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 7px;
  margin-bottom: 5px;
}
.cf-post-author { font-size: 13.5px; font-weight: 700; }
.cf-ai-badge {
  padding: 1px 7px;
  border-radius: 999px;
  background: #ede9fe;
  color: #6d28d9;
  font-size: 11px;
  font-weight: 700;
}
.cf-post-time, .cf-edited { font-size: 11.5px; color: var(--cf-muted); }

.cf-quote-card {
  display: flex;
  flex-direction: column;
  gap: 2px;
  width: 100%;
  margin-bottom: 7px;
  padding: 6px 10px;
  border: 0;
  border-left: 3px solid var(--cf-accent);
  border-radius: 0 6px 6px 0;
  background: var(--cf-nav-bg);
  color: var(--cf-muted);
  font: inherit;
  font-size: 12px;
  text-align: left;
  cursor: pointer;
}
.cf-quote-card strong { color: var(--cf-text); }

.cf-post-body {
  font-size: 14px;
  line-height: 1.56;
  overflow-wrap: anywhere;
}
.cf-post-body p { margin: 0 0 8px; }
.cf-post-body p:last-child { margin-bottom: 0; }
.cf-post-body blockquote {
  margin: 8px 0;
  padding: 7px 12px;
  border-left: 3px solid var(--cf-accent);
  background: var(--cf-nav-bg);
  border-radius: 0 6px 6px 0;
}
.cf-post-body pre {
  margin: 8px 0;
  padding: 10px 12px;
  background: #1b2230;
  color: #f8fafc;
  border-radius: 7px;
  overflow-x: auto;
  font-size: 12.5px;
}
.cf-post-body code {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 12.5px;
}
.cf-post-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 8px 0;
  font-size: 13px;
}
.cf-post-body th, .cf-post-body td {
  border: 1px solid var(--cf-border);
  padding: 6px 8px;
  text-align: left;
}
.cf-post-body th { background: var(--cf-nav-bg); font-weight: 650; }
.cf-post-body img {
  max-width: 100%;
  max-height: 320px;
  border-radius: 8px;
  margin-top: 6px;
}
.cf-post-body .mention {
  color: var(--cf-accent);
  background: var(--cf-accent-soft);
  font-weight: 650;
  padding: 1px 5px;
  border-radius: 4px;
}

.cf-post-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 7px;
}
.cf-report-popover {
  display: flex;
  gap: 6px;
  margin-top: 8px;
  align-items: center;
}

/* Floating Scroll Controls */
.cf-jump-bottom {
  position: absolute;
  right: 16px;
  bottom: 14px;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid var(--cf-border);
  background: var(--cf-surface);
  color: var(--cf-text);
  font-size: 16px;
  font-weight: 700;
  cursor: pointer;
  box-shadow: 0 3px 10px rgba(0, 0, 0, 0.14);
}
.cf-incoming-pill {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  bottom: 14px;
  padding: 6px 14px;
  border-radius: 999px;
  border: 0;
  background: var(--cf-accent);
  color: #ffffff;
  font: inherit;
  font-size: 12px;
  font-weight: 650;
  cursor: pointer;
  box-shadow: 0 3px 10px rgba(0, 0, 0, 0.18);
}

/* Rich Editor & Composer (Section 4.4) */
.cf-composer {
  border-top: 1px solid var(--cf-border);
  background: var(--cf-surface);
  padding: 10px 14px 12px;
}
.cf-quota-banner {
  margin-bottom: 8px;
  padding: 9px 12px;
  border-radius: 8px;
  background: var(--cf-unread-bg);
  border: 1px solid #f59e0b;
  color: var(--cf-text);
  font-size: 12.5px;
}
.cf-composer-quote {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 5px 10px;
  margin-bottom: 7px;
  border-radius: 6px;
  background: var(--cf-accent-soft);
  font-size: 12px;
}
.cf-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 3px;
  margin-bottom: 7px;
}
.cf-tool-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 28px;
  height: 28px;
  padding: 0 7px;
  border-radius: 6px;
  border: 1px solid var(--cf-border);
  background: var(--cf-bg);
  color: var(--cf-text);
  font: inherit;
  font-size: 12px;
  cursor: pointer;
}
.cf-tool-btn:hover {
  border-color: var(--cf-accent);
  color: var(--cf-accent);
  background: var(--cf-accent-soft);
}
.cf-tool-jeanne {
  border-color: #c4b5fd;
  color: #6d28d9;
  font-weight: 600;
}
.cf-toolbar-spacer { flex: 1; }
.cf-tabs { display: inline-flex; gap: 3px; }
.cf-tab-btn {
  padding: 4px 9px;
  border-radius: 6px;
  border: 1px solid transparent;
  background: transparent;
  color: var(--cf-muted);
  font: inherit;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
}
.cf-tab-btn.is-active {
  background: var(--cf-accent-soft);
  color: var(--cf-accent);
}

.cf-popover {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  padding: 8px;
  margin-bottom: 7px;
  border: 1px solid var(--cf-border);
  border-radius: 8px;
  background: var(--cf-bg);
}
.cf-popover .cf-input { width: auto; flex: 1; min-width: 150px; }
.cf-emoji-btn, .cf-mention-btn {
  border: 0;
  background: transparent;
  padding: 4px 7px;
  border-radius: 6px;
  cursor: pointer;
  font: inherit;
}
.cf-emoji-btn { font-size: 18px; }
.cf-mention-btn { font-size: 12.5px; color: var(--cf-accent); font-weight: 600; }
.cf-emoji-btn:hover, .cf-mention-btn:hover { background: var(--cf-nav-bg); }

.cf-editor-textarea {
  width: 100%;
  min-height: 76px;
  max-height: 200px;
  resize: vertical;
  padding: 9px 11px;
  border-radius: 8px;
  border: 1px solid var(--cf-border);
  background: var(--cf-bg);
  color: var(--cf-text);
  font: inherit;
  font-size: 13.5px;
  outline: none;
}
.cf-editor-textarea:focus { border-color: var(--cf-accent); }
.cf-preview-box {
  min-height: 76px;
  max-height: 200px;
  overflow-y: auto;
  padding: 9px 11px;
  border-radius: 8px;
  border: 1px dashed var(--cf-border);
  background: var(--cf-list-bg);
}
.cf-composer-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-top: 7px;
}
.cf-draft-status { font-size: 11.5px; color: var(--cf-muted); }
.cf-locked-bar {
  padding: 10px 14px;
  border-top: 1px solid var(--cf-border);
  background: var(--cf-nav-bg);
  color: var(--cf-muted);
  text-align: center;
  font-size: 12.5px;
}

.cf-toast {
  position: fixed;
  right: 18px;
  bottom: 18px;
  padding: 9px 14px;
  border-radius: 8px;
  background: #1c2430;
  color: #ffffff;
  font-size: 13px;
  z-index: 50;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.22);
}
.cf-signature {
  padding: 6px 10px;
  text-align: right;
  font-size: 11.5px;
}
.cf-signature a {
  color: var(--cf-muted);
  text-decoration: none;
}
.cf-signature a:hover { text-decoration: underline; }

/* Responsive Mobile & Narrow Containers — Single active pane, zero horizontal overflow */
@container (max-width: 860px) {
  .cf-mobile-back { display: inline-flex; align-items: center; }
  .cf-shell,
  .cf-root[data-single-channel="true"] .cf-shell {
    grid-template-columns: minmax(0, 1fr);
    height: var(--cf-mobile-height, 640px);
  }
  .cf-root[data-mobile-pane="nav"] .cf-topics,
  .cf-root[data-mobile-pane="nav"] .cf-reader { display: none; }
  .cf-root[data-mobile-pane="topics"] .cf-nav,
  .cf-root[data-mobile-pane="topics"] .cf-reader { display: none; }
  .cf-root[data-mobile-pane="reader"] .cf-nav,
  .cf-root[data-mobile-pane="reader"] .cf-topics { display: none; }
  .cf-nav, .cf-topics { border-right: 0; }
}

@media (max-width: 860px) {
  .cf-mobile-back { display: inline-flex; align-items: center; }
  .cf-shell,
  .cf-root[data-single-channel="true"] .cf-shell {
    grid-template-columns: minmax(0, 1fr);
    height: var(--cf-mobile-height, 82dvh);
  }
  .cf-root[data-mobile-pane="nav"] .cf-topics,
  .cf-root[data-mobile-pane="nav"] .cf-reader { display: none; }
  .cf-root[data-mobile-pane="topics"] .cf-nav,
  .cf-root[data-mobile-pane="topics"] .cf-reader { display: none; }
  .cf-root[data-mobile-pane="reader"] .cf-nav,
  .cf-root[data-mobile-pane="reader"] .cf-topics { display: none; }
  .cf-nav, .cf-topics { border-right: 0; }
}