@import url('https://fonts.googleapis.com/css2?family=Fraunces:ital,opsz,wght@0,9..144,500;0,9..144,600;0,9..144,700;1,9..144,500&family=Lora:ital,wght@0,400;0,500;0,600;1,400&family=IBM+Plex+Mono:wght@400;500;600&display=swap');

:root{
  --paper: #e7e2d0;
  --paper-raised: #ddd6bc;
  --paper-deep: #d3cbab;
  --ink: #221f19;
  --ink-soft: #5b5540;
  --ink-faint: #857d5f;
  --rubric: #8a2f22;
  --rubric-soft: #8a2f2226;
  --gold: #85661f;
  --gold-soft: #85661f22;
  --line: #c6bd9a;
  --line-soft: #d7d0b3;
  --focus: #3a6ea5;
  --good: #3c6b45;
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --paper: #171612;
    --paper-raised: #211f19;
    --paper-deep: #2a2720;
    --ink: #eae4d2;
    --ink-soft: #b9b096;
    --ink-faint: #857f68;
    --rubric: #d9705c;
    --rubric-soft: #d9705c2e;
    --gold: #d4af37;
    --gold-soft: #d4af372e;
    --line: #3c3829;
    --line-soft: #2c2920;
    --focus: #7ab0e8;
    --good: #7bab7f;
  }
}
:root[data-theme="dark"]{
  --paper: #171612;
  --paper-raised: #211f19;
  --paper-deep: #2a2720;
  --ink: #eae4d2;
  --ink-soft: #b9b096;
  --ink-faint: #857f68;
  --rubric: #d9705c;
  --rubric-soft: #d9705c2e;
  --gold: #d4af37;
  --gold-soft: #d4af372e;
  --line: #3c3829;
  --line-soft: #2c2920;
  --focus: #7ab0e8;
  --good: #7bab7f;
}

*{ box-sizing: border-box; }
[hidden]{ display: none !important; }
html, body{ height: 100%; }
body{
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: 'Lora', Georgia, serif;
  display: flex;
  flex-direction: column;
}
:focus-visible{ outline: 2px solid var(--focus); outline-offset: 2px; }

#sample-banner{
  background: var(--rubric);
  color: #fbf6ea;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.78rem;
  letter-spacing: 0.01em;
  padding: 0.6rem 1.2rem;
  text-align: center;
}
#sample-banner code{
  background: rgba(0,0,0,0.2);
  padding: 0.05rem 0.35rem;
  border-radius: 3px;
}

.shell{
  flex: 1;
  display: grid;
  grid-template-columns: 340px 1fr;
  min-height: 0;
}
@media (max-width: 760px){
  .shell{ grid-template-columns: 1fr; }
  .sidebar{ max-height: 46vh; }
}

/* ---------- Sidebar ---------- */
.sidebar{
  border-right: 1px solid var(--line);
  background: var(--paper-raised);
  display: flex;
  flex-direction: column;
  min-height: 0;
}
.sidebar-head{
  padding: 1.2rem 1.2rem 0.9rem;
  border-bottom: 1px solid var(--line);
}
.app-mark{
  display: block;
  font-family: 'Fraunces', Georgia, serif;
  font-weight: 700;
  font-size: 1.15rem;
}
.app-sub{
  display: block;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ink-faint);
  margin-top: 0.25rem;
}

.pillar-tabs{
  display: flex;
  gap: 0.35rem;
  margin-top: 0.9rem;
}
.pillar-tab{
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.72rem;
  letter-spacing: 0.03em;
  background: none;
  border: 1px solid var(--line);
  border-radius: 3px;
  color: var(--ink-faint);
  padding: 0.3rem 0.6rem;
  cursor: pointer;
  flex: 1;
  text-align: center;
}
.pillar-tab:hover{ background: var(--paper-deep); color: var(--ink-soft); }
.pillar-tab.active{
  background: var(--rubric-soft);
  border-color: var(--rubric);
  color: var(--rubric);
}

.stats{
  display: flex;
  gap: 0.9rem;
  margin-top: 0.9rem;
}
.stat{
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.72rem;
  color: var(--gold);
}
.stat .stat-label{
  color: var(--ink-faint);
  margin-left: 0.2rem;
}

.journey-actions{
  display: flex;
  gap: 0.5rem;
  margin-top: 0.9rem;
}
.btn-primary, .btn-secondary{
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  border-radius: 4px;
  padding: 0.5rem 0.8rem;
  cursor: pointer;
}
.btn-primary{
  background: var(--rubric);
  color: #fbf6ea;
  border: 1px solid var(--rubric);
  flex: 1;
}
.btn-primary:hover{ opacity: 0.9; }
.btn-secondary{
  background: none;
  color: var(--ink-soft);
  border: 1px solid var(--line);
}
.btn-secondary:hover{ background: var(--paper-deep); }
.btn-primary:disabled, .btn-secondary:disabled{
  opacity: 0.45;
  cursor: default;
}
#due-count:empty::before{ content: ""; }

.search-wrap{ padding: 0.9rem 1.2rem; border-bottom: 1px solid var(--line); }
#search{
  width: 100%;
  font-family: 'Lora', Georgia, serif;
  font-size: 0.92rem;
  padding: 0.55rem 0.7rem;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: var(--paper);
  color: var(--ink);
}
#search::placeholder{ color: var(--ink-faint); }

.para-list{
  overflow-y: auto;
  flex: 1;
  padding: 0.4rem 0;
}
.para-item{
  display: block;
  width: 100%;
  text-align: left;
  background: none;
  border: none;
  border-left: 3px solid transparent;
  padding: 0.6rem 1.2rem;
  cursor: pointer;
  color: var(--ink-soft);
}
.para-item:hover{ background: var(--paper-deep); }
.para-item.active{
  border-left-color: var(--rubric);
  background: var(--paper-deep);
  color: var(--ink);
}
.para-item .item-num{
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.75rem;
  color: var(--gold);
  margin-right: 0.5rem;
}
.para-item .item-heading{
  display: block;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--ink-faint);
  margin: 0.4rem 0 0.15rem;
}
.para-item .item-snippet{
  display: block;
  font-size: 0.82rem;
  line-height: 1.4;
  margin-top: 0.15rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.para-item mark{
  background: var(--gold-soft);
  color: inherit;
  border-radius: 2px;
}
.no-results{
  padding: 1.2rem;
  color: var(--ink-faint);
  font-size: 0.88rem;
  font-family: 'IBM Plex Mono', monospace;
}

.import-link{
  display: block;
  text-align: center;
  padding: 0.8rem 1.2rem;
  border-top: 1px solid var(--line);
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.72rem;
  letter-spacing: 0.03em;
  color: var(--ink-faint);
  text-decoration: none;
}
.import-link:hover{ color: var(--rubric); background: var(--paper-deep); }

.attribution{
  padding: 0.7rem 1.2rem 0.9rem;
  border-top: 1px solid var(--line-soft);
  font-size: 0.62rem;
  line-height: 1.5;
  color: var(--ink-faint);
  margin: 0;
}

/* ---------- View switch ---------- */
.view-switch{
  display: flex;
  gap: 0.4rem;
  padding: 1rem 2rem 0;
  max-width: 640px;
  margin: 0 auto;
}
.view-tab{
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--ink-faint);
  padding: 0.4rem 0.2rem;
  cursor: pointer;
}
.view-tab:hover{ color: var(--ink-soft); }
.view-tab.active{ color: var(--rubric); border-bottom-color: var(--rubric); }

/* ---------- Reading pane ---------- */
.reading{ min-height: 0; overflow-y: auto; display: flex; flex-direction: column; }
#browse-content{ flex: 1; min-height: 0; }
.empty-state{
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--ink-faint);
  font-style: italic;
  font-family: 'Fraunces', Georgia, serif;
}
.reading-pane{ max-width: 640px; margin: 0 auto; padding: 3rem 2rem 4rem; }
.breadcrumb{
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--ink-faint);
  margin-bottom: 1.2rem;
}
.subheading{
  font-family: 'Fraunces', Georgia, serif;
  font-weight: 600;
  font-size: 1.15rem;
  margin: 0 0 1.2rem;
  padding-bottom: 0.6rem;
  border-bottom: 1px solid var(--line);
}
.paragraph-body{ display: flex; gap: 1rem; align-items: baseline; }
.para-number{
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.85rem;
  color: var(--gold);
  flex-shrink: 0;
  padding-top: 0.15rem;
}
.para-text{
  font-size: 1.14rem;
  line-height: 1.75;
  color: var(--ink);
  margin: 0;
}
.para-text .placeholder-flag{
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.66rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--rubric);
  border: 1px solid var(--rubric);
  border-radius: 3px;
  padding: 0.05rem 0.4rem;
  margin-right: 0.5rem;
  vertical-align: middle;
}
.crossref{
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.82rem;
  background: var(--gold-soft);
  color: var(--gold);
  border: none;
  border-radius: 3px;
  padding: 0.05rem 0.4rem;
  cursor: pointer;
}
.crossref:hover{ background: var(--gold); color: var(--paper); }
.crossref.missing{
  background: none;
  border: 1px dashed var(--line);
  color: var(--ink-faint);
  cursor: default;
}

.citations{
  margin-top: 1.4rem;
  padding-top: 1rem;
  border-top: 1px solid var(--line-soft);
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.78rem;
  color: var(--ink-faint);
}
.citations .label{ text-transform: uppercase; letter-spacing: 0.06em; margin-right: 0.6rem; }
.citations .cite{
  display: inline-block;
  border: 1px solid var(--line);
  border-radius: 3px;
  padding: 0.1rem 0.5rem;
  margin: 0.15rem 0.2rem 0.15rem 0;
}

.reading-actions{
  display: flex;
  align-items: center;
  gap: 0.9rem;
  margin-top: 1.6rem;
}
.read-status{
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.78rem;
  color: var(--ink-faint);
}
.read-status strong{ color: var(--gold); }
#mark-read-btn.is-read{
  background: var(--gold-soft);
  border-color: var(--gold);
  color: var(--gold);
}
#read-aloud-btn.is-speaking{
  background: var(--rubric-soft);
  border-color: var(--rubric);
  color: var(--rubric);
}

.review-actions{
  display: flex;
  gap: 0.7rem;
  margin-top: 1.8rem;
}
.review-meta{
  margin-top: 1rem;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.78rem;
  color: var(--ink-faint);
}

.notes{ margin-top: 2.2rem; }
.notes-head{
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--ink-faint);
  margin-bottom: 0.5rem;
}
.notes-saved{ color: var(--gold); }
#notes-input{
  width: 100%;
  resize: vertical;
  font-family: 'Lora', Georgia, serif;
  font-size: 0.95rem;
  color: var(--ink);
  background: var(--paper-raised);
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 0.7rem 0.9rem;
}
#notes-input::placeholder{ color: var(--ink-faint); }

/* ---------- Map ---------- */
.map-pane{ padding: 1.6rem 2rem 2rem; }
.map-grid{
  display: grid;
  grid-template-columns: 130px 1fr;
  border: 1px solid var(--line);
  border-radius: 4px;
  overflow: hidden;
  background: var(--paper-raised);
}
.map-labels{ display: flex; flex-direction: column; border-right: 1px solid var(--line); }
.map-label{
  height: var(--lane-h, 100px);
  display: flex;
  align-items: center;
  padding: 0 0.9rem;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.74rem;
  color: var(--ink-soft);
  border-bottom: 1px solid var(--line-soft);
}
.map-label:last-child{ border-bottom: none; }
.map-scroll{ overflow-x: auto; }
.map-scroll svg{ display: block; }
.map-lane-row{ fill: none; }
.map-lane-row.odd{ fill: var(--paper-deep); }
.map-edge{ stroke: var(--rubric); stroke-opacity: 0.4; stroke-width: 1.3; fill: none; pointer-events: none; }
.map-node circle{ fill: var(--gold); stroke: var(--paper-raised); stroke-width: 2; }
.map-node text{ font-family: 'IBM Plex Mono', monospace; font-size: 10px; fill: var(--ink-faint); }
.map-node{ cursor: pointer; }
.map-node:hover circle{ fill: var(--rubric); }
.map-node:hover text{ fill: var(--ink); }
.map-hint{
  margin-top: 1rem;
  font-size: 0.85rem;
  color: var(--ink-faint);
}