/**
 * Shared UI primitives — chrome, panel, stat, empty/degraded, densities.
 * Requires /ui/tokens.css. Issue #417.
 */

/* ── Densities ─────────────────────────────────────────── */
.u-ops {
  font-family: var(--mono);
  font-size: var(--font-size);
  color: var(--ink);
  background: var(--bg);
}
.u-care {
  font-family: var(--disp);
  font-size: 16px;
  line-height: 1.55;
  color: var(--ink);
  background: var(--bg);
}
.u-care .u-stat-v { font-size: 28px; }
.u-care .u-panel { padding: 20px 22px; }

/* ── Chrome (Q4=A: sits in content column; admin sidebar stays full-height) ─ */
.u-chrome {
  display: flex;
  align-items: center;
  gap: 14px;
  min-height: var(--chrome-h);
  padding: 0 16px;
  background: linear-gradient(180deg, var(--surface) 0%, #0d1116 100%);
  border-bottom: 1px solid var(--line);
  flex-shrink: 0;
  position: relative;
  z-index: 5;
}
.u-chrome-brand {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  color: var(--ink);
}
.u-chrome-mark {
  color: var(--ok);
  font-size: 16px;
  text-shadow: 0 0 12px rgba(87, 227, 137, 0.45);
}
.u-chrome-product {
  font-family: var(--disp);
  font-weight: 700;
  font-size: 12px;
  letter-spacing: 2px;
}
.u-chrome-title {
  font-family: var(--disp);
  font-weight: 600;
  font-size: 13px;
  color: var(--ink-dim);
  letter-spacing: 0.4px;
}
.u-chrome-title b { color: var(--ink); font-weight: 700; }
.u-chrome-spacer { flex: 1; }
.u-chrome-clock {
  font-variant-numeric: tabular-nums;
  font-size: 12px;
  color: var(--ink-faint);
}
.u-chrome-hub {
  font-family: var(--disp);
  font-weight: 600;
  font-size: 11px;
  letter-spacing: 1px;
  color: var(--ink-dim);
  text-decoration: none;
  border: 1px solid var(--line-soft);
  border-radius: var(--r);
  padding: 4px 10px;
}
.u-chrome-hub:hover { color: var(--ok); border-color: var(--ok); }

/* ── Panel / stat / empty (P1 — driven by daily activity) ─ */
.u-panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r);
}
.u-panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  padding: 12px 16px;
  border-bottom: 1px solid var(--line);
}
.u-panel-head h2 {
  margin: 0;
  font: 700 14px var(--disp);
  letter-spacing: 0.5px;
}
.u-panel-en {
  margin-left: 8px;
  font: 500 10px var(--mono);
  letter-spacing: 1px;
  color: var(--ink-faint);
}
.u-panel-meta { font-size: 11px; color: var(--ink-faint); }
.u-panel-meta.warn { color: var(--warn); }

.u-stats {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 8px;
}
@media (max-width: 1100px) { .u-stats { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
@media (max-width: 640px)  { .u-stats { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
.u-stat {
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-radius: var(--r);
  padding: 10px 12px;
}
.u-stat-v {
  font: 700 18px var(--disp);
  color: var(--ink);
  font-variant-numeric: tabular-nums;
}
.u-stat-k {
  margin-top: 4px;
  font-size: 10.5px;
  color: var(--ink-faint);
  letter-spacing: 0.8px;
}

.u-empty,
.u-degraded {
  padding: 28px 8px;
  text-align: center;
  color: var(--ink-faint);
  font: 600 13px var(--disp);
  letter-spacing: 1px;
}
.u-degraded { color: var(--warn); }