/* Test pages kit (test-*) — the per-module "tests" workzone page.
   Two reading surfaces: the legacy .test-table and the scannable .test-*
   card grid (one card per test file, grouped by layer Unit / Integration
   P0–P2 / Frontend). Reuses module.css .decision-box / .iter and the
   shared --s1..--s4 scale.
   Loaded by each module's tests.html on top of module.css.
   Placement convention: docs/architecture/README.md §Styling. */

/* ═══════════════════════════════════════════
   Legacy table
   ═══════════════════════════════════════════ */
.test-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.82rem;
  margin-top: 0.5rem;
}

.test-table th {
  text-align: left;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  padding: 0.5rem 0.7rem;
  border-bottom: 2px solid var(--border);
}

.test-table td {
  padding: 0.55rem 0.7rem;
  color: var(--text-dim);
  border-bottom: 1px solid var(--border);
  line-height: 1.45;
  vertical-align: top;
}

.test-table tr:last-child td {
  border-bottom: none;
}

.test-table td:first-child {
  font-weight: 600;
  color: var(--text);
  white-space: nowrap;
}

.test-table code {
  font-size: 0.75rem;
  background: var(--surface);
  padding: 0.1rem 0.35rem;
  border-radius: 4px;
  border: 1px solid var(--border);
}

.priority-badge {
  display: inline-flex;
  font-family: var(--mono);
  font-size: 0.62rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 0.2rem 0.45rem;
  border-radius: var(--pill-radius);
  color: #fff;
  margin-left: 0.4rem;
  vertical-align: middle;
}

.priority-badge--p0 {
  background: var(--s1);
}

.priority-badge--p1 {
  background: var(--s2);
}

.priority-badge--p2 {
  background: var(--accent-muted);
}

.test-group {
  margin-bottom: 2rem;
}

.test-group:last-child {
  margin-bottom: 0;
}

.test-group__label {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 0.03em;
  margin-bottom: 0.5rem;
}

.test-group .section {
  padding: 1rem 1.2rem;
  background: var(--tint-4);
  border: 1px dashed var(--border);
  border-radius: var(--radius-md);
  margin-bottom: 0.6rem;
}

.test-group .section:last-child {
  margin-bottom: 0;
}

.test-divider {
  border: none;
  border-top: 2px dashed var(--accent-muted);
  margin: 2.5rem 0 1.5rem;
}

.test-header {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 1.5rem;
}

/* ═══════════════════════════════════════════
   Card grid
   The scannable alternative to .test-table — one card per test file,
   grouped by layer. No new tokens: the --s1..--s4 scale carries
   layer/priority color.
   ═══════════════════════════════════════════ */

/* Inline code — the card-grid areas re-tune the module-wide chip
   (module.css .page code): em-based size, --s1 accent */
.test-overview code,
.test-grid code,
.test-struct code {
  font-size: 0.82em;
  background: var(--tint-8);
  padding: 0.08em 0.34em;
  border-radius: 4px;
  color: var(--s1);
}

/* ── Overview band — decisions + stack side by side ── */
.test-overview {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: 1rem;
  margin-bottom: 2rem;
}

.test-panel {
  background: var(--paper);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.1rem 1.2rem;
  box-shadow: var(--card-shadow);
}

.test-panel__title {
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: 0.85rem;
}

/* Tighten reused .decision-box when nested in a panel */
.test-panel .decision-box {
  font-size: 0.84rem;
  margin-bottom: 0.6rem;
}
.test-panel .decision-box:last-child {
  margin-bottom: 0;
}
.test-panel .decision-box strong {
  display: block;
  margin-bottom: 0.12rem;
}

.test-stack-row {
  display: flex;
  gap: 0.55rem;
  align-items: baseline;
  font-size: 0.84rem;
  padding: 0.4rem 0;
  border-bottom: 1px dashed var(--border);
  color: var(--text-dim);
}
.test-stack-row:last-child {
  border-bottom: none;
}
.test-stack-row__lbl {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  min-width: 92px;
  font-weight: 600;
  color: var(--text);
  white-space: nowrap;
}

/* ── Section head — layer/priority band over each card grid ── */
.test-sec {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  margin: 2rem 0 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--border);
}
.test-sec__badge {
  font-family: var(--mono);
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.28rem 0.6rem;
  border-radius: 6px;
  background: var(--accent);
  color: #fff;
  white-space: nowrap;
}
.test-sec__badge--unit {
  background: var(--s3);
}
.test-sec__badge--p0 {
  background: var(--s1);
}
.test-sec__badge--p1 {
  background: var(--s2);
}
.test-sec__badge--p2 {
  background: var(--accent-muted);
}
.test-sec__badge--fe {
  background: var(--s4);
}
.test-sec__badge--struct {
  background: var(--text-dim);
}
.test-sec__badge--v2 {
  background: var(--text-muted);
}
.test-sec__title {
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}
.test-sec__meta {
  margin-left: auto;
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--text-muted);
}

/* ── Cards ── */
.test-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(330px, 1fr));
  gap: 1rem;
  align-items: start;
}

.test-card {
  background: var(--paper);
  border: 1px solid var(--border);
  border-left: var(--border-w) solid var(--test-prio, var(--accent));
  border-radius: var(--radius);
  box-shadow: var(--card-shadow);
  overflow: hidden;
}
.test-card--unit {
  --test-prio: var(--s3);
}
.test-card--p0 {
  --test-prio: var(--s1);
}
.test-card--p1 {
  --test-prio: var(--s2);
}
.test-card--p2 {
  --test-prio: var(--accent-muted);
}
.test-card--fe {
  --test-prio: var(--s4);
}

.test-card__head {
  padding: 0.8rem 0.95rem 0.7rem;
}
.test-card__file {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--mono);
  font-size: 0.93rem;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.01em;
}
.test-card__file .ico {
  font-size: 1rem;
}
.test-card__file .name {
  word-break: break-all;
}
.test-card__sub {
  font-size: 0.78rem;
  color: var(--text-dim);
  margin: 0.3rem 0 0.55rem;
}
.test-card__badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  align-items: center;
}

/* ── In-card chips — type / priority / count ── */
.test-tag {
  font-family: var(--mono);
  font-size: 0.62rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 0.2rem 0.45rem;
  border-radius: var(--pill-radius);
  border: 1px solid var(--border);
  background: var(--tint-8);
  color: var(--text-dim);
}
.test-tag--p0 {
  color: var(--s1);
  border-color: var(--s1);
}
.test-tag--p1 {
  color: var(--s2);
  border-color: var(--s2);
}
.test-tag--p2 {
  color: var(--accent-muted);
  border-color: var(--accent-muted);
}

/* ── Collapsible case list — the second reading level ── */
.test-cases {
  border-top: 1px dashed var(--border);
}
.test-cases > summary {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.5rem 0.95rem;
  font-family: var(--mono);
  font-size: 0.74rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  user-select: none;
}
.test-cases > summary::before {
  content: "▸";
  color: var(--test-prio, var(--accent));
  transition: transform 0.15s;
}
.test-cases[open] > summary::before {
  transform: rotate(90deg);
}
.test-cases > summary:hover {
  color: var(--text-dim);
}
.test-case-list {
  padding: 0 0.95rem 0.85rem;
}
.test-case {
  display: grid;
  grid-template-columns: minmax(0, auto) 1fr;
  gap: 0.5rem;
  padding: 0.4rem 0;
  border-bottom: 1px dashed var(--border);
  font-size: 0.8rem;
}
.test-case:last-child {
  border-bottom: none;
}
.test-case__k {
  font-weight: 600;
  color: var(--text);
}
.test-case__e {
  color: var(--text-dim);
}

/* ── Structure footer — 3-column file map ── */
.test-struct {
  background: var(--paper);
  border: 1px solid var(--border);
  border-left: var(--border-w) solid var(--text-dim);
  border-radius: var(--radius);
  padding: 1.1rem 1.2rem;
  box-shadow: var(--card-shadow);
}
.test-struct__lead {
  font-size: 0.9rem;
  line-height: 1.55;
  color: var(--text-dim);
  margin-bottom: 1.1rem;
}
.test-tree {
  font-family: var(--mono);
  font-size: 0.82rem;
}
.test-tree ul {
  list-style: none;
}
.test-tree > ul + ul {
  margin-top: 0.7rem;
}
.test-tree ul ul {
  margin-left: 0.55rem;
  padding-left: 0.95rem;
  border-left: 1px solid var(--border);
}
.test-tree__row {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
  padding: 0.2rem 0;
}
.test-tree__row code {
  white-space: nowrap;
  color: var(--text);
}
.test-tree__row .d {
  color: var(--text-muted);
  font-size: 0.92em;
}

@media (max-width: 880px) {
  .test-overview {
    grid-template-columns: 1fr;
  }
}

/* Deep-link flash — a linked test section (e.g. #conformance) highlights on
   navigation, same cue as .section:target. Keyframes live in module.css. */
.test-sec:target {
  border-radius: var(--radius-md);
  animation: target-highlight 2.6s ease-out;
}

@media (prefers-reduced-motion: reduce) {
  .test-sec:target {
    animation: none;
    box-shadow: 0 0 0 2px var(--accent-muted);
  }
}