/* =========================================================================
   Project detail pages — layers on top of style.css (load style.css first).
   Reuses the same tokens (--ink, --amber, --mint, --panel, --mono, …).
   ========================================================================= */

/* breadcrumb + back */
.breadcrumb {
  font-family: var(--mono); font-size: .78rem; letter-spacing: .06em;
  color: var(--muted-2); margin-bottom: 20px; display: flex; gap: 8px; flex-wrap: wrap;
}
.breadcrumb a { color: var(--muted); }
.breadcrumb a:hover { color: var(--mint); }
.breadcrumb .sep { color: var(--line-2); }
.breadcrumb .cur { color: var(--amber); }

.back-link {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--mono); font-size: .82rem; color: var(--muted);
}
.back-link:hover { color: var(--mint); }

/* project hero */
.proj-hero { padding: 128px 0 64px; position: relative; z-index: 1; }
.proj-eyebrow {
  display: inline-flex; align-items: center; gap: 9px;
  font-family: var(--mono); font-size: .78rem; letter-spacing: .06em;
  color: var(--muted); margin-bottom: 22px;
  border: 1px solid var(--line); border-radius: 100px; padding: 6px 14px; background: var(--panel);
}
.proj-hero h1 {
  font-family: var(--display); font-weight: 700;
  font-size: clamp(2.1rem, 5vw, 3.4rem); line-height: 1.04; letter-spacing: -0.03em;
  margin-bottom: 16px;
}
.proj-tagline {
  font-family: var(--display); font-weight: 500;
  font-size: clamp(1.15rem, 2.3vw, 1.7rem); line-height: 1.2; letter-spacing: -0.01em;
  color: var(--text); max-width: 30ch; margin-bottom: 22px;
}
.proj-lede { font-size: clamp(1rem, 1.5vw, 1.14rem); color: var(--muted); max-width: 62ch; margin-bottom: 30px; }

.proj-links { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 30px; }

/* prose blocks inside sections */
.prose { max-width: 68ch; }
.prose p { color: var(--muted); margin-bottom: 16px; font-size: 1.04rem; }
.prose p:last-child { margin-bottom: 0; }
.prose strong { color: var(--text); }
.prose em { color: var(--text); font-style: normal; border-bottom: 1px solid var(--amber-dim); }
.prose code { font-family: var(--mono); font-size: .85em; color: var(--amber); background: var(--panel-2); padding: 1px 6px; border-radius: 4px; }

/* two-column problem / solution */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 8px; }
.split .card h3 {
  font-family: var(--mono); font-size: .74rem; text-transform: uppercase; letter-spacing: .08em;
  color: var(--amber); margin-bottom: 12px;
}
.split .card.sol h3 { color: var(--mint); }
.split .card p { color: var(--muted); font-size: .98rem; }
.split .card p + p { margin-top: 12px; }

/* architecture grid */
.arch-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.arch-item { background: var(--panel); border: 1px solid var(--line); border-radius: var(--r); padding: 22px; box-shadow: var(--shadow-sm); }
.arch-item h3 { font-family: var(--display); font-size: 1.05rem; font-weight: 600; color: var(--text); margin-bottom: 8px; }
.arch-item p { color: var(--muted); font-size: .95rem; }
.arch-item code { font-family: var(--mono); font-size: .85em; color: var(--amber); }

/* metrics readout row */
.metrics-row {
  display: flex; flex-wrap: wrap; gap: 14px; margin-top: 8px;
}
.metric {
  flex: 1 1 160px; background: var(--panel); border: 1px solid var(--line);
  border-radius: var(--r); padding: 20px 22px; box-shadow: var(--shadow-sm);
}
.metric .mv { font-family: var(--mono); font-size: 1.9rem; font-weight: 600; color: var(--mint); line-height: 1; }
.metric .mv .mu { font-size: .95rem; color: var(--muted); margin-left: 2px; }
.metric .ml { font-size: .84rem; color: var(--muted); margin-top: 8px; display: block; }

/* download card (PDF) */
.download-card {
  display: flex; align-items: center; gap: 18px;
  background: linear-gradient(135deg, var(--panel), var(--amber-dim));
  border: 1px solid var(--line-2); border-radius: var(--r);
  padding: 20px 22px; max-width: 640px; box-shadow: var(--shadow-sm);
  transition: border-color .2s, transform .2s, box-shadow .2s;
}
.download-card:hover { border-color: var(--amber); transform: translateY(-2px); box-shadow: var(--shadow); }
.download-ico {
  flex: none; width: 46px; height: 46px; border-radius: 10px;
  display: grid; place-items: center;
  background: var(--amber-dim); border: 1px solid var(--line-2); color: var(--amber);
  font-family: var(--mono); font-size: .68rem; font-weight: 600;
}
.download-meta { flex: 1; }
.download-meta .dt { font-family: var(--display); font-weight: 600; color: var(--text); font-size: 1.02rem; }
.download-meta .ds { font-family: var(--mono); font-size: .76rem; color: var(--muted); margin-top: 3px; }
.download-card .btn-primary { flex: none; }

/* callout note (honesty / status) */
.note {
  border-left: 2px solid var(--line-2); padding: 4px 0 4px 18px;
  color: var(--muted); font-size: .96rem; max-width: 66ch; margin-top: 8px;
}
.note strong { color: var(--text); }

/* section spacing tweak for detail pages */
.proj-section { padding: 76px 0; }

@media (max-width: 940px) {
  .split, .arch-grid { grid-template-columns: 1fr; }
}
@media (max-width: 680px) {
  .download-card { flex-direction: column; align-items: flex-start; }
}