/* ═══════════════════════════════════════════════════════
   DIP · Operations Model — Architecture Web
════════════════════════════════════════════════════════ */

.om-page {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background: transparent;
}

/* ── Page header ── */
.om-page-header {
  padding: 12px 24px;
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-bottom: 0.5px solid var(--glass-border);
  flex-shrink: 0;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 12px;
}

.om-header-spacer { flex: 1; }

.om-summary-stats {
  display: flex; gap: 8px; flex-shrink: 0;
  justify-content: flex-end;
}

.om-stat-chip {
  display: flex; align-items: center; gap: 8px;
  background: var(--glass-bg-light);
  backdrop-filter: blur(20px) saturate(150%);
  -webkit-backdrop-filter: blur(20px) saturate(150%);
  border: 0.5px solid var(--glass-border);
  border-radius: 8px;
  padding: 6px 12px;
  box-shadow: 0 1px 6px rgba(0,0,0,0.04), inset 0 1px 0 rgba(255,255,255,0.9);
}

.om-stat-chip > i { font-size: 13px; flex-shrink: 0; }

.om-sc-val {
  font-size: 15px; font-weight: 700;
  color: var(--text-primary);
  font-family: var(--font-mono);
  letter-spacing: -0.02em;
  line-height: 1;
}

.om-sc-lbl {
  font-size: 9px; font-weight: 500;
  color: var(--text-tertiary);
  letter-spacing: 0.01em;
  white-space: nowrap;
}

/* ── Architecture canvas ── */
.om-arch-canvas {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  overflow-x: hidden;
  padding: 32px 36px 48px;
  background: transparent;
}

.om-web {
  display: flex;
  flex-direction: column;
  align-items: stretch;
}

/* ── Tier nodes ── */
.om-node {
  /* horizontal colour grade: tier colour on left fades to clear glass */
  background-color: rgba(255,255,255,0.68);
  background-image: linear-gradient(
    to right,
    color-mix(in srgb, var(--tier-c, #6b7280) 18%, transparent)  0%,
    color-mix(in srgb, var(--tier-c, #6b7280)  6%, transparent) 35%,
    transparent 65%
  );
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 0.5px solid var(--glass-border);
  border-top: 2px solid var(--tier-c, #e5e5e7);
  border-radius: 14px;
  box-shadow: var(--glass-shadow);
  display: flex;
  overflow: hidden;
  align-self: center;
  width: 72%;
  min-width: 620px;
}

/* L3 wide: full width */
.om-node-wide {
  align-self: stretch;
  width: 100%;
  min-width: unset;
}

/* ── Left identity panel ── */
.om-node-identity {
  flex-shrink: 0;
  width: 210px;
  padding: 20px 20px 16px;
  border-right: 0.5px solid rgba(255,255,255,0.4);
  display: flex;
  flex-direction: column;
  gap: 5px;
  background: transparent; /* parent gradient provides the colour wash */
}

.om-node-badge {
  font-size: 8px; font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--tier-c, #6b7280);
  margin-bottom: 2px;
}

.om-node-title {
  font-size: 13px; font-weight: 700;
  color: var(--text-primary);
  line-height: 1.3;
}

.om-node-desc {
  font-size: 10px;
  color: var(--text-secondary);
  line-height: 1.55;
  flex: 1;
  margin-top: 3px;
}

.om-node-metrics {
  display: flex; gap: 14px;
  margin-top: 10px;
  padding-top: 10px;
  border-top: 0.5px solid var(--border);
}

.om-nm {
  display: flex; flex-direction: column; gap: 1px;
  font-size: 9px; color: var(--text-tertiary);
}

.om-nm span {
  font-size: 18px; font-weight: 700;
  color: var(--tier-c, var(--text-primary));
  font-family: var(--font-mono);
  letter-spacing: -0.03em;
  line-height: 1;
}

/* ── Right: categories + chips ── */
.om-node-cats {
  flex: 1; min-width: 0;
  padding: 16px 18px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  overflow-y: auto;
}

/* L3 wide: 4 columns side by side */
.om-cats-grid {
  flex-direction: row !important;
  padding: 0 !important;
  gap: 0 !important;
  overflow-y: visible !important;
}

.om-cats-grid .om-cat {
  flex: 1;
  padding: 16px 16px 18px;
  border-right: 0.5px solid var(--border);
  min-width: 0;
}

.om-cats-grid .om-cat:last-child {
  border-right: none;
}

/* Category block */
.om-cat {
  display: flex;
  flex-direction: column;
  gap: 7px;
}

.om-cat-name {
  font-size: 9px; font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-secondary);
  display: flex; align-items: center; gap: 5px;
  margin-bottom: 2px;
}

.om-chips {
  display: flex; flex-wrap: wrap; gap: 4px;
}

.om-chip {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 3px 8px;
  border-radius: 5px;
  font-size: 9.5px; font-weight: 500;
  color: var(--text-primary);
  background: rgba(255,255,255,0.6);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 0.5px solid rgba(255,255,255,0.7);
  box-shadow: 0 1px 3px rgba(0,0,0,0.05), inset 0 1px 0 rgba(255,255,255,0.95);
  line-height: 1.4;
}

/* Status dots */
.om-chip::before {
  content: '';
  display: inline-block;
  width: 4px; height: 4px;
  border-radius: 50%;
  flex-shrink: 0;
}
.om-chip.status-retain::before    { background: #22c55e; }
.om-chip.status-transform::before { background: #6e3ff3; }
.om-chip.status-sunset::before    { background: #f87171; }
.om-chip.status-new::before       { background: #f97316; }

.om-chip .bi-stars {
  font-size: 7px; opacity: 0.75; flex-shrink: 0;
}

/* ── Flow connectors between tiers ── */
.om-flow {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 10px 0;
  z-index: 1;
}

.om-flow-line {
  width: 1.5px;
  height: 32px;
  opacity: 0.45;
  border-radius: 1px;
}

.om-flow-label {
  font-size: 8px;
  font-weight: 600;
  color: var(--text-tertiary);
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.om-flow-caret {
  width: 0; height: 0;
  border-left: 5px solid transparent;
  border-right: 5px solid transparent;
  opacity: 0.45;
  margin-top: 1px;
}

/* ── Cross-tier band (bottom) ── */
.om-cross-band {
  background-color: rgba(255,255,255,0.68);
  background-image: linear-gradient(
    to right,
    color-mix(in srgb, var(--tier-c, #ec4899) 16%, transparent)  0%,
    color-mix(in srgb, var(--tier-c, #ec4899)  5%, transparent) 35%,
    transparent 65%
  );
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 0.5px solid var(--glass-border);
  border-top: 2px solid var(--tier-c, #ec4899);
  border-radius: 14px;
  box-shadow: var(--glass-shadow);
  display: flex;
  overflow: hidden;
  margin-top: 28px;
}

.om-cross-identity {
  flex-shrink: 0;
  width: 210px;
  padding: 16px 20px;
  border-right: 0.5px solid rgba(255,255,255,0.4);
  display: flex;
  flex-direction: column;
  gap: 5px;
  background: transparent;
}

.om-cross-title {
  font-size: 13px; font-weight: 700;
  color: var(--text-primary);
}

.om-cross-desc {
  font-size: 10px; color: var(--text-secondary); line-height: 1.45;
}

.om-cross-cats {
  flex: 1;
  padding: 16px 22px;
  display: flex; gap: 36px; align-items: flex-start;
  flex-wrap: wrap;
}

.om-cross-cat {
  display: flex; flex-direction: column; gap: 7px;
}

.om-cross-stats {
  flex-shrink: 0;
  padding: 16px 22px;
  border-left: 0.5px solid var(--border);
  display: flex; flex-direction: column; gap: 12px;
  justify-content: center;
  background: color-mix(in srgb, var(--tier-c, #ec4899) 3%, white);
}