/* ── Atlas tab ─────────────────────────────────────────────── */

.catlas__lead {
  max-width: 54rem;
  margin-block: 0 var(--space-5);
}

.catlas__tabs {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-bottom: var(--space-5);
}

.catlas__tab {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  background: var(--dbh-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  font: inherit;
  font-size: var(--text-sm);
  cursor: pointer;
  transition: color .15s, border-color .15s, background .15s;
}

.catlas__tab:hover {
  color: var(--text-primary);
  border-color: var(--text-muted);
}

.catlas__tab.is-active {
  color: var(--text-primary);
  border-color: var(--accent);
  background: color-mix(in srgb, var(--accent) 12%, transparent);
  box-shadow: 0 0 12px color-mix(in srgb, var(--accent) 25%, transparent);
}

.catlas__tab-icon svg {
  display: block;
}

.catlas__stage {
  min-height: 24rem;
}

/* Topology colors are driven by data attributes so the JS never needs inline styles. */
[data-topology="stream-aligned"] { --lane-color: var(--hue-amber); --team-color: var(--hue-amber); }
[data-topology="platform"] { --lane-color: var(--hue-azure); --team-color: var(--hue-azure); }
[data-topology="enabling"] { --lane-color: var(--hue-teal); --team-color: var(--hue-teal); }
[data-topology="complicated-subsystem"] { --lane-color: var(--hue-violet); --team-color: var(--hue-violet); }

/* ── Topology map ──────────────────────────────────────────── */

.catlas__map {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
}

/* Edges are a trace-on-demand layer, not always-on spaghetti: hidden until a
   team card is hovered/focused, then only that team's links show (see the
   [data-highlight-team] rules below). This keeps the default map clean and
   legible; the per-card "N cross-team links" text + the matrix carry the
   relationship data for keyboard/AT users. */
.catlas__edges {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
  opacity: 0;
  transition: opacity var(--dur);
  overflow: visible;
}
.catlas__map[data-highlight-team] .catlas__edges { opacity: 1; }

.catlas__edge {
  fill: none;
  stroke-width: .035;
  stroke-linecap: round;
  opacity: 0;
  transition: opacity var(--dur);
}
.catlas__map[data-highlight-team] .catlas__edge.is-focused { opacity: 1; }

.catlas__edge--collaboration { stroke: var(--hue-amber); stroke-dasharray: .2 .15; }
.catlas__edge--x-as-a-service { stroke: var(--hue-azure); }
.catlas__edge--facilitating { stroke: var(--hue-teal); stroke-dasharray: .08 .12; }

.catlas__lanes {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-4);
}

@media (max-width: 1100px) {
  .catlas__lanes { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
  .catlas__lanes { grid-template-columns: 1fr; }
}

.catlas__lane {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.catlas__lane-h {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin: 0;
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: .04em;
  text-transform: uppercase;
  color: var(--lane-color, var(--text-primary));
}

.catlas__lane-h::before {
  content: '';
  width: 10px;
  height: 10px;
  border-radius: 2px;
  background: var(--lane-color, var(--text-primary));
  transform: rotate(45deg);
}

.catlas__lane-items {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.catlas__card {
  position: relative;
  background: var(--team-color, var(--dbh-edge));
  clip-path: var(--plate-poly);
  padding: var(--space-3);
  filter: drop-shadow(0 10px 20px var(--scrim-soft));
  transition: transform .12s, filter .12s, color .12s;
}
.catlas__card::before {
  content: ""; position: absolute; inset: 1px; z-index: 0;
  background: var(--surface-raise); box-shadow: var(--surface-raise-hi);
  clip-path: var(--plate-poly);
  pointer-events: none;
}
.catlas__card > * { position: relative; z-index: 1; }
.catlas__card::after {
  content: ""; position: absolute; left: -1px; top: var(--bevel); z-index: 2;
  width: 2px; height: calc(var(--bevel) * 1.42);
  background: var(--team-color, var(--accent));
  box-shadow: 0 0 8px var(--team-color, var(--accent));
  transform-origin: top left; transform: rotate(-45deg);
  pointer-events: none;
}

.catlas__card:hover {
  transform: translateY(-2px);
  filter: drop-shadow(0 16px 28px var(--scrim)) drop-shadow(0 0 14px var(--team-color, var(--accent-glow)));
}

.catlas__map[data-highlight-team] .catlas__card.is-dimmed {
  opacity: .25;
  filter: grayscale(.5);
}

.catlas__map[data-highlight-team] .catlas__card:not(.is-dimmed) {
  opacity: 1;
}

.catlas__edge.is-dimmed {
  opacity: .08;
}

.catlas__edge.is-focused {
  opacity: .9;
  filter: drop-shadow(0 0 4px currentColor);
  stroke-width: .06;
}

.catlas__card-head {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-2);
}

.catlas__card-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--team-color, var(--accent));
  box-shadow: 0 0 8px var(--team-color, var(--accent));
}

.catlas__card-title {
  margin: 0;
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--text-primary);
}

.catlas__card-needs {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1);
  margin-bottom: var(--space-2);
}

.catlas__card-needs .ctag--sm {
  font-size: var(--text-xs);
  padding: 2px 8px;
}

/* Accessible text equivalent of the edge graph: each cross-team link as a
   typed, mode-colored row. Always present (the SVG is aria-hidden). */
.catlas__card-links {
  list-style: none;
  display: flex; flex-direction: column; gap: 3px;
  margin-top: var(--space-2);
  font-size: var(--text-xs);
  color: var(--text-muted);
}
.catlas__link { display: flex; align-items: center; gap: 6px; }
.catlas__link-dot {
  width: 6px; height: 6px; border-radius: 50%; flex-shrink: 0;
  background: var(--text-muted);
}
.catlas__link-dot--collaboration { background: var(--hue-amber); }
.catlas__link-dot--x-as-a-service { background: var(--hue-azure); }
.catlas__link-dot--facilitating { background: var(--hue-teal); }
.catlas__card:focus-visible {
  outline: 2px solid var(--accent-bright); outline-offset: 2px;
}

.catlas__hint {
  font-size: var(--text-xs); color: var(--text-muted);
  margin-top: var(--space-4);
}
.catlas__legend {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  margin-top: var(--space-3);
  padding-top: var(--space-4);
  border-top: 1px solid var(--border);
}

.catlas__legend-item {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  color: var(--text-muted);
}

.catlas__legend-dot {
  width: 18px;
  height: 3px;
  border-radius: 2px;
  background: var(--text-muted);
}

.catlas__legend-item--collaboration .catlas__legend-dot {
  background: var(--hue-amber);
  background-image: repeating-linear-gradient(90deg, var(--hue-amber) 0 6px, transparent 6px 10px);
}

.catlas__legend-item--x-as-a-service .catlas__legend-dot {
  background: var(--hue-azure);
}

.catlas__legend-item--facilitating .catlas__legend-dot {
  background: var(--hue-teal);
  background-image: repeating-linear-gradient(90deg, var(--hue-teal) 0 4px, transparent 4px 8px);
}

/* ── Customer-needs matrix ─────────────────────────────────── */

.catlas__matrix-wrap {
  position: relative;
  overflow-x: auto;
  background: var(--dbh-edge);
  clip-path: var(--plate-poly);
  filter: drop-shadow(0 16px 30px var(--scrim));
}
.catlas__matrix-wrap::before {
  content: ""; position: absolute; inset: 1px; z-index: 0;
  background: var(--surface-raise); clip-path: var(--plate-poly);
  pointer-events: none;
}

.catlas__matrix {
  position: relative; z-index: 1;
  width: 100%;
  min-width: 40rem;
  border-collapse: collapse;
  font-size: var(--text-sm);
}

.catlas__th,
.catlas__row-h,
.catlas__cell {
  padding: var(--space-2) var(--space-3);
  border-bottom: 1px solid var(--border);
  border-right: 1px solid var(--border);
  text-align: left;
  vertical-align: middle;
}

.catlas__th {
  position: sticky;
  top: 0;
  background: color-mix(in srgb, var(--dbh-panel) 95%, var(--accent));
  font-weight: 600;
  color: var(--text-primary);
  z-index: 2;
}

.catlas__th--corner {
  min-width: 14rem;
  z-index: 3;
}

.catlas__th-inner {
  display: block;
  max-width: 8rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.catlas__row-h {
  position: sticky;
  left: 0;
  background: var(--dbh-panel);
  min-width: 14rem;
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-weight: 500;
  z-index: 1;
}

.catlas__row-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--team-color, var(--accent));
  flex-shrink: 0;
}

.catlas__cell {
  text-align: center;
}

.catlas__cell-mark {
  display: inline-block;
  width: 10px;
  height: 10px;
  border-radius: 2px;
  transform: rotate(45deg);
}

.catlas__cell.is-covered .catlas__cell-mark {
  background: var(--accent);
  box-shadow: 0 0 8px var(--accent);
}

.catlas__cell.is-uncovered .catlas__cell-mark {
  background: var(--border);
}

.catlas__matrix-note {
  margin-top: var(--space-3);
  font-size: var(--text-sm);
  color: var(--text-muted);
}

/* ── Upload / validator ────────────────────────────────────── */

.catlas__upload {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: var(--space-4);
  align-items: start;
}

@media (max-width: 900px) {
  .catlas__upload { grid-template-columns: 1fr; }
}

.catlas__dropzone {
  position: relative;
  padding: var(--space-6);
  text-align: center;
  border: 2px dashed var(--border);
  transition: border-color .15s, background .15s;
}

.catlas__dropzone.is-dragover {
  border-color: var(--accent);
  background: color-mix(in srgb, var(--accent) 8%, transparent);
}

.catlas__dropzone-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-3);
}

.catlas__file {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.catlas__upload-icon {
  color: var(--text-muted);
}

.catlas__upload-icon svg {
  display: block;
}

.catlas__panel-h {
  margin: 0;
  font-size: var(--text-base);
  font-weight: 600;
}

.catlas__result {
  margin-top: var(--space-4);
  text-align: left;
}

.catlas__result-box {
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-sm);
  font-size: var(--text-sm);
}

.catlas__result-box.is-success {
  background: color-mix(in srgb, var(--hue-teal) 14%, transparent);
  border: 1px solid color-mix(in srgb, var(--hue-teal) 45%, transparent);
  color: var(--hue-teal);
}

.catlas__result-box.is-error {
  background: color-mix(in srgb, var(--hue-rose) 14%, transparent);
  border: 1px solid color-mix(in srgb, var(--hue-rose) 45%, transparent);
  color: var(--hue-rose);
}

.catlas__result-box ul {
  margin: var(--space-2) 0 0;
  padding-left: var(--space-4);
}

.catlas__result-box li + li {
  margin-top: var(--space-1);
}

.catlas__result-msg--info {
  color: var(--text-muted);
  font-size: var(--text-sm);
}

.catlas__schema {
  max-height: 18rem;
  overflow: auto;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: var(--space-3);
  font-size: var(--text-xs);
  line-height: 1.5;
  color: var(--text-muted);
}

.catlas__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-top: var(--space-4);
}

.catlas__muted {
  color: var(--text-muted);
  font-size: var(--text-xs);
}

.catlas__empty {
  color: var(--text-muted);
  font-size: var(--text-sm);
  padding: var(--space-3);
}