:root {
  --bg: #05080f;
  --surface: #0a1020;
  --card: #111a33;
  --card-hi: #16213f;
  --border: #1b2747;
  --border-hi: #2a3a66;
  --text: #f7f8fb;
  --muted: rgba(247,248,251,0.62);
  --muted-soft: rgba(247,248,251,0.40);
  --accent: #1ea7ff;
  --accent-hi: #4fc3ff;
  --accent-subtle: rgba(30,167,255,0.12);
  --x: #ef4444; --y: #22c55e; --z: #1ea7ff;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Inter', ui-sans-serif, system-ui, sans-serif;
  font-size: 15px; line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}
h1, h2, h3 { font-family: 'Inter Tight', 'Inter', sans-serif; letter-spacing: -0.015em; }

.page-header {
  max-width: 1180px;
  margin: 0 auto;
  padding: 56px 28px 24px;
}
.brand { display: flex; align-items: center; gap: 16px; margin-bottom: 18px; }
.brand h1 { font-size: 32px; font-weight: 700; margin: 0; letter-spacing: -0.02em; }
.brand h1 .tighter { color: var(--accent-hi); letter-spacing: 0.04em; font-weight: 500; }
.brand .eyebrow {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted-soft);
  margin-bottom: 6px;
}
.lede { color: var(--muted); max-width: 720px; font-size: 15.5px; line-height: 1.6; }

.filters {
  max-width: 1180px;
  margin: 12px auto 28px;
  padding: 0 28px;
  display: flex; flex-wrap: wrap; gap: 8px;
  position: sticky; top: 0;
  background: linear-gradient(to bottom, var(--bg) 80%, transparent);
  padding-top: 12px; padding-bottom: 12px;
  z-index: 5;
}
.chip {
  padding: 7px 13px;
  background: var(--card);
  color: var(--muted);
  border: 1px solid var(--border);
  border-radius: 999px;
  font: 500 13px 'Inter', sans-serif;
  cursor: pointer;
}
.chip:hover { color: var(--text); border-color: var(--border-hi); }
.chip.active {
  background: var(--accent-subtle);
  color: var(--accent-hi);
  border-color: var(--accent);
}

.grid {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 28px 80px;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
  gap: 18px;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 16px;
  display: flex; flex-direction: column; gap: 12px;
}
.card-head {
  display: flex; justify-content: space-between; align-items: flex-start;
  gap: 10px;
}
.card-head h3 {
  font-size: 17px; font-weight: 600;
  margin: 0;
}
.card-id {
  display: inline-block;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  color: var(--muted-soft);
  letter-spacing: 0.05em;
  margin-bottom: 2px;
}
.family-tag {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 3px 8px;
  border-radius: 999px;
  border: 1px solid;
  white-space: nowrap;
  flex-shrink: 0;
}
.tag-gizmo     { color: #fca5a5; border-color: rgba(239,68,68,0.4); background: rgba(239,68,68,0.10); }
.tag-orbit     { color: #93c5fd; border-color: rgba(59,130,246,0.4); background: rgba(59,130,246,0.10); }
.tag-lidar     { color: #86efac; border-color: rgba(34,197,94,0.4); background: rgba(34,197,94,0.10); }
.tag-technical { color: #fcd34d; border-color: rgba(245,158,11,0.4); background: rgba(245,158,11,0.10); }
.tag-floorplan { color: #c4b5fd; border-color: rgba(167,139,250,0.4); background: rgba(167,139,250,0.10); }
.tag-signature { color: #f0abfc; border-color: rgba(232,121,249,0.4); background: rgba(232,121,249,0.10); }

.card-previews {
  display: grid; grid-template-columns: 1fr 1fr; gap: 8px;
}
.preview {
  aspect-ratio: 1;
  border-radius: 10px;
  display: grid; place-items: center;
  border: 1px solid var(--border);
  overflow: hidden;
}
.preview svg { width: 86%; height: 86%; }
.preview-dark { background: #0a1020; }
.preview-light { background: #fff; }

.card-blurb {
  color: var(--muted);
  font-size: 13.5px;
  line-height: 1.55;
  margin: 0;
}

.card-lockup {
  display: grid; grid-template-columns: 1fr; gap: 6px;
  margin-top: 4px;
}
.lockup {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 14px;
  display: grid; place-items: start center;
  overflow: hidden;
}
.lockup svg { width: 100%; max-height: 56px; }
.lockup-dark { background: #0a1020; }
.lockup-light { background: #fff; }

.card-actions {
  display: flex; flex-wrap: wrap; gap: 6px;
  border-top: 1px solid var(--border);
  padding-top: 10px;
  margin-top: 4px;
}
.action {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10.5px;
  color: var(--muted);
  text-decoration: none;
  padding: 4px 9px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 999px;
  letter-spacing: 0.02em;
}
.action:hover { color: var(--accent-hi); border-color: var(--accent); background: var(--accent-subtle); }

.page-footer {
  max-width: 1180px;
  margin: 0 auto;
  padding: 24px 28px 60px;
  display: flex; justify-content: space-between; align-items: center;
  color: var(--muted-soft);
  font-size: 12px;
  border-top: 1px solid var(--border);
}
.page-footer .mono { font-family: 'JetBrains Mono', monospace; }

@media (max-width: 720px) {
  .page-header { padding: 28px 18px 14px; }
  .brand h1 { font-size: 22px; }
  .lede { font-size: 14px; }
  .filters { padding: 10px 18px; }
  .grid { padding: 0 18px 60px; gap: 14px; }
  .card { padding: 14px; }
  .card-actions { gap: 5px; }
  .action { font-size: 10px; padding: 3px 7px; }
}