/* ── Page Hero (shared across project pages) ───────────────────────────── */
.page-hero {
  padding: 120px 0 64px;
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
}
.page-hero-intro {
  font-size: 1.05rem;
  color: var(--text-dim);
  max-width: 680px;
  line-height: 1.8;
  margin-top: 8px;
}
.back-link {
  display: inline-block;
  font-size: 0.875rem;
  color: var(--text-dim);
  margin-bottom: 24px;
  transition: color var(--transition);
}
.back-link:hover { color: var(--accent); }

/* ── Status Badges ─────────────────────────────────────────────────────── */
.project-status {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 4px 12px;
  border-radius: 20px;
  border: 1px solid;
}
.status-active {
  background: rgba(20, 184, 166, 0.1);
  color: #14b8a6;
  border-color: rgba(20, 184, 166, 0.3);
}
.status-complete {
  background: rgba(201, 168, 76, 0.1);
  color: var(--accent);
  border-color: rgba(201, 168, 76, 0.3);
}

/* ── Project Index Grid ────────────────────────────────────────────────── */
.project-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 24px;
}
.project-card {
  display: flex;
  flex-direction: column;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  text-decoration: none;
  color: inherit;
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}
.project-card:hover {
  border-color: var(--accent);
  transform: translateY(-4px);
  box-shadow: var(--shadow);
  color: inherit;
}
.project-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}
.project-card-icon { font-size: 2rem; }
.project-card-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 10px;
}
.project-card-desc {
  font-size: 0.9rem;
  color: var(--text-dim);
  line-height: 1.7;
  margin-bottom: 18px;
  flex: 1;
}
.project-card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 20px;
}
.project-tag {
  background: var(--bg);
  color: var(--text-dim);
  font-size: 0.72rem;
  padding: 3px 10px;
  border-radius: 3px;
  border: 1px solid var(--border);
  font-weight: 500;
}
.project-card-cta {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent);
  margin-top: auto;
}

/* ── Detail Page Sections ──────────────────────────────────────────────── */
.detail-section { border-top: 1px solid var(--border); }
.alt-section { background: var(--bg-card); }
.detail-heading {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 20px;
}
.detail-intro {
  font-size: 1rem;
  color: var(--text-dim);
  max-width: 720px;
  line-height: 1.8;
  margin-bottom: 40px;
}
.detail-grid {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 48px;
  align-items: start;
}
.detail-content p {
  color: var(--text-dim);
  line-height: 1.8;
  margin-bottom: 16px;
}
.detail-content p strong { color: var(--text); }
.detail-aside {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0;
}
.detail-stat-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px 32px;
  text-align: center;
  width: 100%;
}
.detail-stat {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 4px;
}
.detail-stat-label {
  font-size: 0.75rem;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.detail-stat-arrow {
  font-size: 1.5rem;
  color: var(--accent);
  padding: 8px 0;
}

@media (max-width: 768px) {
  .detail-grid { grid-template-columns: 1fr; }
  .detail-aside { flex-direction: row; gap: 12px; }
  .detail-stat-arrow { transform: rotate(-90deg); }
}

/* ── Pipeline Flow ─────────────────────────────────────────────────────── */
.pipeline {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}
.pipeline-step {
  flex: 1;
  min-width: 160px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 16px;
  text-align: center;
}
.pipeline-icon { font-size: 1.75rem; margin-bottom: 8px; }
.pipeline-title {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 6px;
}
.pipeline-desc {
  font-size: 0.75rem;
  color: var(--text-dim);
  line-height: 1.5;
}
.pipeline-arrow {
  font-size: 1.25rem;
  color: var(--accent);
  padding-top: 28px;
  flex-shrink: 0;
}
@media (max-width: 768px) {
  .pipeline { flex-direction: column; }
  .pipeline-arrow { transform: rotate(90deg); align-self: center; padding-top: 0; }
}

/* ── Architecture Diagram ──────────────────────────────────────────────── */
.arch-diagram {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  overflow-x: auto;
}
.arch-pre {
  font-family: 'Courier New', Courier, monospace;
  font-size: 0.78rem;
  color: var(--text-dim);
  line-height: 1.6;
  white-space: pre;
  margin: 0;
}

/* ── Agent Cards ───────────────────────────────────────────────────────── */
.agent-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
}
.agent-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: border-color var(--transition), transform var(--transition);
}
.agent-card:hover {
  border-color: var(--accent);
  transform: translateY(-3px);
}
.agent-num {
  font-size: 2rem;
  font-weight: 800;
  color: var(--accent);
  opacity: 0.4;
  line-height: 1;
  margin-bottom: 8px;
}
.agent-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 10px;
}
.agent-desc {
  font-size: 0.875rem;
  color: var(--text-dim);
  line-height: 1.7;
  margin-bottom: 16px;
}
.agent-desc code {
  font-size: 0.8rem;
  background: var(--bg);
  padding: 1px 6px;
  border-radius: 3px;
  color: var(--accent);
  border: 1px solid var(--border);
}
.agent-tech { display: flex; flex-wrap: wrap; gap: 6px; }

/* ── Infrastructure Grid ───────────────────────────────────────────────── */
.infra-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 16px;
}
.infra-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius);
  padding: 20px;
}
.infra-label {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-dim);
  margin-bottom: 4px;
}
.infra-value {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 8px;
}
.infra-detail {
  font-size: 0.8rem;
  color: var(--text-dim);
  line-height: 1.5;
}

/* ── Design Decisions ──────────────────────────────────────────────────── */
.decisions-list { display: flex; flex-direction: column; gap: 16px; }
.decision {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 24px;
}
.decision-num {
  font-size: 1.1rem;
  color: var(--accent);
  flex-shrink: 0;
  font-weight: 700;
  margin-top: 1px;
}
.decision-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 4px;
}
.decision-desc {
  font-size: 0.875rem;
  color: var(--text-dim);
  line-height: 1.6;
}
.decision-desc code {
  font-size: 0.8rem;
  background: var(--bg);
  padding: 1px 6px;
  border-radius: 3px;
  color: var(--accent);
  border: 1px solid var(--border);
}

/* ── Observability Grid ────────────────────────────────────────────────── */
.obs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 20px;
}
.obs-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: border-color var(--transition), transform var(--transition);
}
.obs-card:hover {
  border-color: var(--accent);
  transform: translateY(-3px);
}
.obs-icon { font-size: 1.75rem; margin-bottom: 12px; }
.obs-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 10px;
}
.obs-desc {
  font-size: 0.875rem;
  color: var(--text-dim);
  line-height: 1.7;
}
.obs-desc code {
  font-size: 0.8rem;
  background: var(--bg);
  padding: 1px 6px;
  border-radius: 3px;
  color: var(--accent);
  border: 1px solid var(--border);
}

/* ── Checklist ─────────────────────────────────────────────────────────── */
.check-list {
  list-style: none;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.check-list li {
  font-size: 0.9rem;
  color: var(--text-dim);
  padding-left: 20px;
  position: relative;
  line-height: 1.5;
}
.check-list li::before {
  content: '▹';
  position: absolute;
  left: 0;
  color: var(--accent);
}

/* ── Project Hero Meta (detail page) ──────────────────────────────────── */
.project-hero-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}
.project-hero-tags { display: flex; flex-wrap: wrap; gap: 6px; }
.project-links { margin-top: 24px; }

/* ── Footer ────────────────────────────────────────────────────────────── */
.projects-footer {
  padding: 32px 0;
  border-top: 1px solid var(--border);
}