/* Knowledge grid, the ledger: rows are entities, columns are properties,
   skyline meters in the header stack stone under filled. */
.grid--topbar {
  display: flex;
  align-items: center;
  gap: 1.1rem;
  flex-wrap: wrap;
  margin-bottom: 1.4rem;
}

.grid--title {
  font-size: 1.3rem;
  margin: 0;
  white-space: nowrap;
}

.grid--tabs {
  display: flex;
  gap: 2px;
  padding: 3px;
  background: var(--wash);
  border-radius: 10px;
  flex-wrap: wrap;
}

.grid--tab {
  font-family: var(--display);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--muted);
  padding: 5px 13px;
  border-radius: 8px;
  text-decoration: none;
  transition: color 0.15s, background 0.15s;
}

.grid--tab:hover {
  color: var(--ink);
}

.grid--tab.is-active {
  background: var(--card);
  color: var(--ink);
  box-shadow: 0 1px 3px color-mix(in srgb, var(--bs-emphasis-color) 14%, transparent);
}

.grid--stats {
  margin-left: auto;
  font-family: var(--display);
  font-size: 0.85rem;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.grid--stone-count {
  color: var(--accent-deep);
  font-weight: 600;
}

.knowledge-grid {
  overflow: hidden;
}

.grid--scroll {
  overflow-x: auto;
}

.grid--table {
  border-collapse: separate;
  border-spacing: 0;
  width: 100%;
  min-width: 55rem;
  font-variant-numeric: tabular-nums;
  font-size: 0.9rem;
}

.grid--table thead th {
  position: sticky;
  top: 0;
  z-index: 2;
  background: var(--card);
  text-align: left;
  vertical-align: bottom;
  padding: 0.9rem 0.9rem 0.55rem;
  border-bottom: 1px solid var(--line);
}

.grid--corner {
  position: sticky;
  left: 0;
  z-index: 3;
  border-right: 1px solid var(--line);
}

.grid--corner-label {
  font-family: var(--display);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--muted);
  padding-bottom: 2px;
}

.grid--rowsum-h {
  width: 3.6rem;
}

/* Skyline meters, the signature */
.grid--sky {
  height: 40px;
  display: flex;
  align-items: flex-end;
  margin-bottom: 0.55rem;
}

.grid--sky-track {
  width: 100%;
  height: 100%;
  position: relative;
  background: linear-gradient(to top, var(--wash), transparent 85%);
  border-radius: 4px 4px 0 0;
  overflow: hidden;
}

.grid--sky-fill,
.grid--sky-stone {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 0;
  transition: height 0.45s cubic-bezier(0.2, 0.7, 0.3, 1);
}

.grid--sky-fill {
  background: var(--accent);
  opacity: 0.45;
  border-radius: 3px 3px 0 0;
}

.grid--sky-stone {
  background: var(--accent-deep);
  border-radius: 3px 3px 0 0;
}

.grid--col-label {
  font-family: var(--display);
  font-size: 0.85rem;
  font-weight: 700;
  line-height: 1.25;
}

.grid--col-meta {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
  margin-top: 2px;
  font-size: 0.72rem;
  color: var(--muted);
  white-space: nowrap;
}

.grid--col-count.grid--complete {
  color: var(--moss);
  font-weight: 600;
}

.grid--widen-form {
  display: inline;
}

.grid--widencol {
  border: 0;
  background: none;
  padding: 0;
  font-family: var(--display);
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--accent);
}

.grid--widencol:hover {
  color: var(--accent-deep);
  text-decoration: underline;
}

.grid--table tbody td,
.grid--table tbody th.grid--entity {
  border-bottom: 1px solid var(--line);
  background: var(--card);
  transition: background 0.12s;
}

.grid--table tbody tr:last-child td,
.grid--table tbody tr:last-child th.grid--entity {
  border-bottom: 0;
}

.grid--table tbody tr:hover td,
.grid--table tbody tr:hover th.grid--entity {
  background: color-mix(in srgb, var(--wash) 42%, var(--card));
}

.grid--table tbody td {
  padding: 0;
}

.grid--entity {
  position: sticky;
  left: 0;
  z-index: 1;
  text-align: left;
  border-right: 1px solid var(--line);
  font-family: var(--display);
  font-weight: 600;
  font-size: 0.88rem;
  padding: 0.6rem 0.9rem;
  white-space: nowrap;
  min-width: 7.4rem;
}

.grid--entity-link {
  color: inherit;
  text-decoration: none;
}

.grid--entity-link:hover {
  color: var(--accent-deep);
}

.grid--rowsum {
  font-size: 0.75rem;
  color: var(--muted);
  text-align: right;
  padding: 0.6rem 1rem 0.6rem 0.5rem;
  white-space: nowrap;
}

.grid--rowsum.grid--full {
  color: var(--moss);
  font-weight: 600;
}

/* Filled fact cell */
.grid--fact {
  display: flex;
  align-items: center;
  gap: 7px;
  width: 100%;
  border: 0;
  background: none;
  cursor: default;
  padding: 0.6rem 0.9rem;
  text-align: left;
  font-size: 0.88rem;
  color: var(--ink);
  white-space: nowrap;
}

.grid--pending .grid--value {
  opacity: 0.6;
}

.grid--pending-mark {
  font-family: var(--display);
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--accent);
  border: 1px dashed var(--accent);
  border-radius: 999px;
  width: 1rem;
  height: 1rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: none;
}

.grid--rejected .grid--value {
  opacity: 0.4;
  text-decoration: line-through;
}

/* Empty cell: a quiet ＋ that reveals its verb on approach */
.grid--widen {
  display: flex;
  align-items: center;
  gap: 6px;
  width: 100%;
  border: 0;
  background: none;
  cursor: pointer;
  padding: 0.6rem 0.9rem;
  text-align: left;
  color: var(--muted);
  white-space: nowrap;
}

.grid--plus {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
  flex: none;
  border: 1px dashed var(--line);
  border-radius: 6px;
  font-size: 0.8rem;
  line-height: 1;
  color: var(--muted);
  transition: border-color 0.15s, color 0.15s, background 0.15s;
}

.grid--widen-label {
  font-family: var(--display);
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--accent);
  opacity: 0;
  transition: opacity 0.15s;
}

.grid--widen:hover .grid--plus,
.grid--widen:focus-visible .grid--plus {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--wash);
  border-style: solid;
}

.grid--widen:hover .grid--widen-label,
.grid--widen:focus-visible .grid--widen-label {
  opacity: 1;
}

.grid--busy {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 0.6rem 0.9rem;
  color: var(--muted);
  white-space: nowrap;
  cursor: progress;
}

.grid--busy .spinner-border-sm {
  --bs-spinner-width: 0.85rem;
  --bs-spinner-height: 0.85rem;
  --bs-spinner-border-width: 2px;
  color: var(--accent);
}

.grid--busy-label {
  font-family: var(--display);
  font-size: 0.78rem;
  font-weight: 500;
}

.grid--just-filled {
  animation: grid-settle 0.5s ease-out;
}

@keyframes grid-settle {
  from { background: var(--wash); }
  to { background: transparent; }
}

/* Cell popover */
.grid--pop {
  position: fixed;
  z-index: 1050;
  max-width: 15rem;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 10px;
  box-shadow: 0 6px 22px color-mix(in srgb, var(--bs-emphasis-color) 18%, transparent);
  padding: 0.7rem 0.8rem;
  font-size: 0.78rem;
}

.grid--pop-eyebrow {
  font-family: var(--display);
  font-size: 0.66rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
  margin-bottom: 2px;
}

.grid--pop-value {
  font-size: 0.94rem;
  font-weight: 600;
  margin-bottom: 0.45rem;
}

.grid--pop-dismissed {
  text-decoration: line-through;
  opacity: 0.6;
}

.grid--pop-row {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--muted);
  margin-top: 3px;
}

.grid--pop-settled {
  color: var(--moss);
}

.grid--pop-badge {
  background: var(--moss-wash);
  color: var(--moss);
  padding: 1px 7px;
  border-radius: 20px;
  font-weight: 600;
  font-size: 0.72rem;
}

.grid--pop-actions {
  display: flex;
  gap: 0.35rem;
  margin-top: 0.5rem;
}

.grid--legend {
  margin-top: 0.9rem;
  display: flex;
  gap: 1.25rem;
  flex-wrap: wrap;
  font-size: 0.78rem;
  color: var(--muted);
}

.grid--legend span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

@media (max-width: 720px) {
  .grid--widen-label {
    display: none;
  }

  .grid--entity {
    min-width: 6rem;
    font-size: 0.82rem;
    padding: 0.55rem 0.6rem;
  }

  .grid--fact,
  .grid--widen,
  .grid--busy {
    padding: 0.55rem 0.6rem;
    font-size: 0.82rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .grid--sky-fill,
  .grid--sky-stone,
  .grid--tab,
  .grid--plus,
  .grid--widen-label {
    transition: none;
  }

  .grid--just-filled {
    animation: none;
  }
}