/* Notifications — data-model workzone diagram (dm-*).
   The same dm-* DB-table kit auth-security and Admin use: stk-* layered-stack
   bands carry one table sub-block each (field · type · constraint chips · note)
   plus .stk-dec design notes. This module owns the five core notification
   tables and their migration; the kit is duplicated here per the proximity
   principle (each module sheet carries the dm-* shape it renders). Static —
   no hover affordance (README §Hover).
   Loaded by _workzone/data-model.html on top of ../../module.css
   + ../../layered-stack.css.
   Placement convention: docs/architecture/README.md §Styling. */

/* ── Layer accent presets ── */
.stk-layer--notif {
  --stk-lc: var(--s4-glow);
  --stk-lc-pale: var(--s4-pale);
}
.stk-layer--migration {
  --stk-lc: var(--s2-glow);
  --stk-lc-pale: var(--s2-pale);
}

/* ── Constraint chips ── */
.dm-c {
  display: inline-flex;
  align-items: center;
  font-family: var(--mono);
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  padding: 0.12rem 0.4rem;
  border-radius: var(--pill-radius);
  line-height: 1.4;
  white-space: nowrap;
}
.dm-c--pk {
  background: var(--s1);
  color: #fff;
}
.dm-c--fk {
  background: var(--s2);
  color: #fff;
}
.dm-c--uq {
  background: #5a6a8a;
  color: #fff;
}
.dm-c--idx {
  background: var(--s4);
  color: #fff;
}
.dm-c--nn {
  background: var(--s3);
  color: #fff;
}
.dm-c--null {
  background: var(--paper);
  color: var(--text-muted);
  border: 1px solid var(--accent-muted);
}
.dm-c--chk {
  background: var(--tint-15);
  color: var(--accent);
  border: 1px solid var(--tint-25);
}
.dm-c--def {
  background: var(--s2-pale);
  color: var(--s2);
  border: 1px solid var(--tint-15);
}

/* ── DB-table sub-block (lives inside a .stk-layer__body) ── */
.dm-tbl {
  flex: 1 1 320px;
  min-width: 280px;
  align-self: flex-start;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--surface);
  overflow: hidden;
}
/* Every notification table spans the full layer width (stacked, one per row);
   notes wrap below. */
.stk-layer--notif .dm-tbl {
  flex-basis: 100%;
}
.dm-tbl__head {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
  padding: 0.5rem 0.75rem;
  background: var(--tint-6);
  border-bottom: 1px solid var(--border);
}
.dm-tbl__name {
  font-family: var(--mono);
  font-size: 0.86rem;
  font-weight: 700;
  color: var(--text);
}
.dm-tbl__sub {
  font-size: 0.66rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.dm-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem;
  margin-left: auto;
}
.dm-badge {
  font-family: var(--mono);
  font-size: 0.58rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  padding: 0.16rem 0.4rem;
  border-radius: var(--tag-radius);
  border: 1px solid var(--tint-25);
  color: var(--text-dim);
  background: var(--tint-6);
  white-space: nowrap;
}
.dm-badge--flag {
  color: var(--s4);
  border-color: rgba(160, 88, 56, 0.35);
  background: var(--s4-pale);
}
.dm-badge--fk {
  color: var(--s2);
  border-color: rgba(136, 96, 64, 0.4);
  background: rgba(136, 96, 64, 0.08);
}
.dm-badge--fk::before {
  content: "⛓ ";
}
.dm-badge--uniq {
  color: var(--s3);
  border-color: rgba(106, 128, 72, 0.4);
  background: var(--s3-pale);
}

/* ── Matrix-style field rows: field · type · constraint chips · note ── */
.dm-fields {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
}
.dm-fields td {
  padding: 0.32rem 0.75rem;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--border);
}
.dm-fields tr:last-child td {
  border-bottom: none;
}
.dm-fields .dm-f {
  font-family: var(--mono);
  font-size: 0.76rem;
  font-weight: 700;
  color: var(--text);
  white-space: nowrap;
}
.dm-fields .dm-t {
  font-family: var(--mono);
  font-size: 0.7rem;
  color: var(--text-dim);
  white-space: nowrap;
}
.dm-fields .dm-cons {
  white-space: nowrap;
}
.dm-fields .dm-cons .dm-c {
  margin: 1px 2px 1px 0;
}
.dm-fields .dm-note {
  font-size: 0.74rem;
  color: var(--text-dim);
  line-height: 1.4;
}
.dm-fields tr.is-pk td:first-child {
  box-shadow: inset 3px 0 0 var(--s1);
}
.dm-fields tr.is-fk td:first-child {
  box-shadow: inset 3px 0 0 var(--s2);
}

/* ── Two-model compare card (broadcast ⇄ targeted), lives in a .stk-dec ── */
.dm-cmp {
  display: flex;
  gap: 0.6rem;
  flex-wrap: wrap;
}
.dm-cmp__col {
  flex: 1 1 240px;
  padding: 0.55rem 0.7rem;
  background: var(--tint-6);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
}
.dm-cmp__col--b {
  border-left: 3px solid var(--s2);
}
.dm-cmp__col--t {
  border-left: 3px solid var(--s4);
}
.dm-cmp__h {
  display: flex;
  align-items: baseline;
  gap: 0.4rem;
  flex-wrap: wrap;
  margin-bottom: 0.4rem;
  font-family: var(--mono);
  font-size: 0.74rem;
  font-weight: 700;
  color: var(--text);
}
.dm-cmp__h code {
  font-weight: 400;
  font-size: 0.64rem;
  color: var(--text-muted);
}
.dm-cmp__row {
  margin-top: 0.22rem;
  font-size: 0.74rem;
  line-height: 1.4;
  color: var(--text-dim);
}
.dm-cmp__k {
  display: inline-block;
  min-width: 4.4rem;
  font-size: 0.62rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-muted);
}

/* ── Highlighted rule / formula line ── */
.dm-formula {
  padding: 0.45rem 0.65rem;
  background: var(--tint-6);
  border: 1px solid var(--tint-25);
  border-radius: var(--radius-md);
  font-family: var(--mono);
  font-size: 0.74rem;
  line-height: 1.5;
  color: var(--text);
}
.dm-formula__note {
  color: var(--text-muted);
}

/* ── Compact key → value map (per-type defaults) ── */
.dm-map {
  margin: 0;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.2rem 0.7rem;
  font-size: 0.74rem;
  line-height: 1.4;
}
.dm-map dt {
  font-family: var(--mono);
  font-weight: 700;
  color: var(--text);
  white-space: nowrap;
}
.dm-map dd {
  margin: 0;
  color: var(--text-dim);
}