.reveal {
  opacity: 1;
  transform: none;
}

.js .reveal {
  opacity: 0;
  transform: translateY(18px);
}

.js .reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.proof-grid,
.boundary-layout {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
  align-items: stretch;
}

.proof-card h3,
.status-grid h3,
.resource-grid h3 {
  margin: 6px 0 10px;
  font-size: 1.25rem;
}

.proof-card > p:last-child,
.resource-grid .panel > p:last-child {
  margin-top: auto;
}

.status-label {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  margin: 0 0 8px;
  padding: 6px 10px;
  border: 1px solid currentColor;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  line-height: 1;
  text-transform: uppercase;
}

.status-label.runnable {
  color: #176d60;
  background: rgba(27, 138, 122, 0.1);
}

.status-label.reference {
  color: #9a4b00;
  background: rgba(255, 122, 0, 0.1);
}

.status-label.development {
  color: #625b52;
  background: rgba(79, 74, 66, 0.08);
}

.compact-steps {
  margin: 0;
  padding-left: 1.35rem;
  display: grid;
  gap: 8px;
  color: #2b2925;
  line-height: 1.55;
}

.boundary-layout {
  grid-template-columns: minmax(260px, 0.72fr) minmax(0, 1.28fr);
}

.boundary-diagram {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  gap: 8px;
  min-height: 100%;
}

.flow-node {
  width: min(100%, 360px);
  padding: 12px 16px;
  border: 1px solid var(--stroke);
  border-radius: 12px;
  background: var(--card);
  font-weight: 600;
}

.flow-node.emphasis {
  border-color: var(--accent-2);
  box-shadow: inset 4px 0 0 var(--accent-2);
}

.flow-arrow {
  color: var(--muted);
  font-size: 1.25rem;
  line-height: 1;
}

.independent-check {
  width: min(100%, 400px);
  margin-top: 14px;
  padding: 12px 14px;
  border-top: 1px dashed var(--accent);
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.5;
}

.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--stroke);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.62);
}

.responsibility-table,
.integration-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 680px;
  text-align: left;
}

.responsibility-table th,
.responsibility-table td,
.integration-table th,
.integration-table td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--stroke);
  vertical-align: top;
  line-height: 1.5;
}

.responsibility-table thead th,
.integration-table thead th {
  background: var(--card-5);
  font-size: 0.78rem;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.responsibility-table tbody th,
.integration-table tbody th {
  color: var(--ink);
  font-weight: 700;
}

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

.trust-note {
  margin-top: 20px;
  padding: 16px 18px;
  border-left: 4px solid var(--accent);
  border-radius: 0 12px 12px 0;
  background: rgba(255, 122, 0, 0.07);
}

.trust-note p {
  margin: 0;
  line-height: 1.6;
}

.trust-note p + p {
  margin-top: 8px;
}

.text-link {
  color: #126d60;
  font-weight: 600;
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

.status-grid .panel,
.resource-grid .panel {
  height: 100%;
}

.brief-actions {
  flex-wrap: wrap;
}

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

@media (prefers-reduced-motion: reduce) {
  .js .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

@media (max-width: 900px) {
  .proof-grid,
  .boundary-layout {
    grid-template-columns: 1fr;
  }

  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .hero-actions .btn {
    width: 100%;
  }
}

@media print {
  .project-brief .proof-grid,
  .project-brief .boundary-layout,
  .project-brief .status-grid {
    display: block;
  }

  .project-brief .proof-card,
  .project-brief .status-grid .panel {
    margin-bottom: 10pt;
  }

  .project-brief .table-wrap {
    overflow: visible;
    border: 0;
    border-radius: 0;
  }

  .project-brief .responsibility-table,
  .project-brief .integration-table {
    min-width: 0;
    font-size: 8.5pt;
  }

  .project-brief .responsibility-table th,
  .project-brief .responsibility-table td,
  .project-brief .integration-table th,
  .project-brief .integration-table td {
    padding: 5pt;
  }

  .project-brief .trust-note {
    border: 1px solid #bbb;
    padding: 8pt;
  }

  .project-brief .brief-actions {
    display: none;
  }
}