/* ==========================================================================
   admin-notes.css — the Notes surface. Prefix: .apx-nt-
   Ported from the old feedback desk (admin-screens.css .ap-inbox/.ap-note/
   .ap-detail/.ap-lightbox), simplified to Open|Resolved + 4 signal chips.
   Idiom: student dashboard, not a SaaS admin. Bare ground, hairline rules,
   Fraunces numerals, small-caps labels. Tokens only — dark-native for free.
   ========================================================================== */

.apx-nt {
  max-width: 960px;
  margin: 0 auto;
  padding: 0.2rem 0 4rem;
}

/* ---- filter bar --------------------------------------------------------- */
.apx-nt-filterbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1.3rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--line);
}
.apx-nt-filter-label {
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  margin-right: 0.1rem;
}
.apx-nt-chip {
  appearance: none;
  border: 1px solid var(--line-strong);
  background: var(--surface);
  color: var(--ink-soft);
  border-radius: 999px;
  padding: 0.32rem 0.8rem 0.36rem;
  font: inherit;
  font-size: 0.84rem;
  font-weight: 600;
  cursor: pointer;
  transition: border-color 0.15s ease, background-color 0.15s ease, color 0.15s ease;
}
.apx-nt-chip:hover { border-color: var(--ink); }
.apx-nt-chip[aria-pressed="true"] {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--bg);
}

/* signal chips speak in their signal's colour — soft at rest, solid when
   active, muted when there are no notes of that kind. Token-only palette:
   loved=accent, confused=warn, broken=ink, idea=muted/surface-soft. */
.apx-nt-chip-sig-loved {
  background: var(--accent-wash);
  border-color: var(--accent);
  color: var(--accent);
}
.apx-nt-chip-sig-confused {
  background: var(--surface-soft);
  border-color: var(--warn);
  color: var(--warn-deep);
}
.apx-nt-chip-sig-broken {
  background: var(--surface-soft);
  border-color: var(--ink);
  color: var(--ink);
}
.apx-nt-chip-sig-idea {
  background: var(--surface-soft);
  border-color: var(--line-strong);
  color: var(--muted);
}
.apx-nt-chip-sig.is-empty {
  background: var(--surface);
  border-color: var(--line-strong);
  color: var(--muted);
}
.apx-nt-chip-sig:hover { border-color: currentColor; }
.apx-nt-chip-sig-loved[aria-pressed="true"] {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--on-accent);
}
.apx-nt-chip-sig-confused[aria-pressed="true"] {
  background: var(--warn);
  border-color: var(--warn);
  color: var(--on-accent);
}
.apx-nt-chip-sig-broken[aria-pressed="true"] {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--bg);
}
.apx-nt-chip-sig-idea[aria-pressed="true"] {
  background: var(--muted);
  border-color: var(--muted);
  color: var(--bg);
}
.apx-nt-chip-divider {
  width: 1px;
  height: 1.4rem;
  background: var(--line-strong);
  margin: 0 0.3rem;
}
.apx-nt-keys {
  margin-left: auto;
  font-size: 0.78rem;
  color: var(--muted);
}

/* ---- inbox: two panes ---------------------------------------------------- */
.apx-nt-inbox {
  display: grid;
  grid-template-columns: minmax(300px, 5fr) 7fr;
  gap: 1.4rem;
  align-items: start;
}
.apx-nt-list { min-width: 0; }
.apx-nt-route-group { margin-bottom: 1.3rem; }
.apx-nt-route-head {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
  padding: 0 0.1rem 0.5rem;
  border-bottom: 1px solid var(--line-strong);
  margin-bottom: 0.55rem;
}
.apx-nt-route-head h3 {
  font-family: "Fraunces", Georgia, serif;
  font-size: 1rem;
  font-weight: 600;
  margin: 0;
  color: var(--ink);
}
.apx-nt-route-path {
  font-size: 0.78rem;
  color: var(--muted);
}
.apx-nt-route-new {
  margin-left: auto;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--accent);
}

/* ---- note row: bare ground, hairline-separated, not a boxed card -------- */
.apx-nt-note {
  width: 100%;
  text-align: left;
  appearance: none;
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 0.3rem 0.65rem;
  align-items: start;
  background: none;
  border: none;
  border-top: 1px solid var(--line);
  border-left: 3px solid transparent;
  padding: 0.75rem 0.5rem 0.75rem 0.55rem;
  cursor: pointer;
  font: inherit;
  color: inherit;
  transition: background-color 0.15s ease, border-color 0.15s ease;
}
.apx-nt-route-group .apx-nt-note:last-child { border-bottom: 1px solid var(--line); }
.apx-nt-note:hover { background: var(--surface-soft); }
.apx-nt-note[aria-current="true"] {
  background: var(--surface-soft);
  border-left-color: var(--accent);
}
.apx-nt-note.apx-nt-note-resolved { opacity: 0.55; }
.apx-nt-note-body {
  grid-column: 2;
  font-size: 0.9rem;
  line-height: 1.45;
  color: var(--ink-soft);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin: 0;
}
.apx-nt-note-meta {
  grid-column: 2;
  font-size: 0.78rem;
  color: var(--muted);
}
.apx-nt-note-thumb {
  grid-column: 3;
  grid-row: 1 / span 3;
  width: 44px;
  height: 44px;
  object-fit: cover;
  border-radius: 7px;
  border: 1px solid var(--line-strong);
  background: var(--surface-soft);
}

/* signal marks — the examiner's marginalia */
.apx-nt-signal {
  grid-column: 1;
  grid-row: 1 / span 3;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  border-radius: 7px;
  font-size: 13px;
  font-weight: 800;
  font-family: "Fraunces", Georgia, serif;
  flex: none;
}
.apx-nt-signal-loved { background: var(--accent); color: var(--on-accent); }
.apx-nt-signal-confused { background: var(--surface-soft); color: var(--warn-deep); border: 1px solid var(--warn); }
.apx-nt-signal-broken { background: var(--ink); color: var(--bg); }
.apx-nt-signal-idea { background: var(--surface-soft); color: var(--muted); border: 1px solid var(--line-strong); }

.apx-nt-signal-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  border-radius: 999px;
  padding: 0.18rem 0.7rem 0.24rem;
  font-size: 0.78rem;
  font-weight: 700;
}
.apx-nt-signal-pill.apx-nt-signal-loved { background: var(--accent); color: var(--on-accent); }
.apx-nt-signal-pill.apx-nt-signal-confused { background: var(--surface-soft); color: var(--warn-deep); border: 1px solid var(--warn); }
.apx-nt-signal-pill.apx-nt-signal-broken { background: var(--ink); color: var(--bg); }
.apx-nt-signal-pill.apx-nt-signal-idea { background: var(--surface-soft); color: var(--muted); border: 1px solid var(--line-strong); }

/* ---- detail pane: the open script ---------------------------------------- */
.apx-nt-detail {
  position: sticky;
  top: 1rem;
  padding: 0 0 0 1.4rem;
  border-left: 1px solid var(--line);
  min-height: 280px;
}
.apx-nt-detail-empty {
  display: grid;
  place-items: center;
  min-height: 280px;
  color: var(--muted);
  font-size: 0.9rem;
  text-align: center;
}
.apx-nt-detail-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 0.3rem;
}
.apx-nt-detail-head h2 {
  font-family: "Fraunces", Georgia, serif;
  font-size: 1.32rem;
  font-weight: 600;
  letter-spacing: -0.015em;
  margin: 0;
  color: var(--ink);
  flex: 1 1 auto;
}
.apx-nt-detail-sub {
  font-size: 0.82rem;
  color: var(--muted);
  margin: 0 0 0.9rem;
}
.apx-nt-detail-sub b { color: var(--ink-soft); }
.apx-nt-detail-body {
  font-size: 1rem;
  line-height: 1.6;
  color: var(--ink);
  white-space: pre-wrap;
  border-left: 3px solid var(--accent);
  padding: 0.1rem 0 0.1rem 0.9rem;
  margin: 0 0 1rem;
}
.apx-nt-detail-body.apx-nt-detail-body-empty {
  color: var(--muted);
  font-style: italic;
  border-left-color: var(--line-strong);
}
.apx-nt-shot {
  display: block;
  max-width: 100%;
  max-height: 300px;
  border-radius: 10px;
  border: 1px solid var(--line-strong);
  margin: 0 0 1rem;
  cursor: zoom-in;
}
.apx-nt-snapshot-row { display: flex; align-items: baseline; gap: 0.5rem; margin: 0 0 0.9rem; flex-wrap: wrap; }
.apx-nt-snapshot-link { font-weight: 700; font-size: 0.86rem; color: var(--accent); text-decoration: underline; text-underline-offset: 3px; }
.apx-nt-snapshot-link:hover { color: var(--accent-strong); }
.apx-nt-snapshot-hint { font-size: 0.76rem; color: var(--muted); }

.apx-nt-context {
  background: var(--surface-soft);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 0.6rem 0.85rem;
  margin-bottom: 1rem;
}
.apx-nt-context summary {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  cursor: pointer;
  list-style: none;
}
.apx-nt-context summary::-webkit-details-marker { display: none; }
.apx-nt-context summary::before { content: "▸ "; color: var(--accent); }
.apx-nt-context[open] summary::before { content: "▾ "; }
.apx-nt-context dl {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.2rem 0.9rem;
  margin: 0.6rem 0 0.1rem;
  font-size: 0.8rem;
}
.apx-nt-context dt { color: var(--muted); }
.apx-nt-context dd { margin: 0; color: var(--ink-soft); word-break: break-word; }

.apx-nt-detail-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  align-items: center;
  border-top: 1px solid var(--line);
  padding-top: 0.9rem;
}
.apx-nt-act {
  appearance: none;
  font: inherit;
  font-size: 0.86rem;
  font-weight: 700;
  border-radius: 8px;
  padding: 0.45rem 0.95rem;
  cursor: pointer;
  border: 1px solid var(--ink);
  background: transparent;
  color: var(--ink);
  transition: background-color 0.15s ease, color 0.15s ease;
}
.apx-nt-act:hover { background: var(--ink); color: var(--bg); }
.apx-nt-act-resolve {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--on-accent);
}
.apx-nt-act-resolve:hover { background: var(--accent-strong); border-color: var(--accent-strong); }
.apx-nt-detail-status {
  margin-left: auto;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}
.apx-nt-detail-status[data-status="new"],
.apx-nt-detail-status[data-status="acknowledged"] { color: var(--accent); }
.apx-nt-detail-status[data-status="resolved"] { color: var(--muted); }

/* ---- lightbox ------------------------------------------------------------ */
.apx-nt-lightbox {
  position: fixed;
  inset: 0;
  z-index: 1250;
  background: rgba(33, 7, 6, 0.82);
  display: grid;
  place-items: center;
  padding: 4vh 4vw;
  cursor: zoom-out;
}
.apx-nt-lightbox img {
  max-width: 100%;
  max-height: 100%;
  border-radius: 8px;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.5);
}

/* ---- mobile: 390px, no horizontal overflow, stack the two panes -------- */
@media (max-width: 720px) {
  .apx-nt-inbox { grid-template-columns: 1fr; }
  .apx-nt-detail {
    position: static;
    padding: 1.2rem 0 0;
    border-left: none;
    border-top: 1px solid var(--line);
  }
  .apx-nt-keys { display: none; }
}
@media (max-width: 480px) {
  .apx-nt-note-thumb { display: none; }
}