/* ─────────────────────────────────────────────────────────────────────
   TruStackAPI page shell — shared brand chrome
   (sysbar, wordmark, page tabs). Loaded by every page that adopts the
   TruStackAPI identity (audit-trail, overview-2, cam-bridge…).
   Page-specific styles live in their own files.
   ───────────────────────────────────────────────────────────────────── */

/* Token import contract: the page must <link> trustackapi-tokens.css
   BEFORE this file. */

/* ── Wordmark ─────────────────────────────────────────────────────── */
.tsa-wm {
  display: inline-flex;
  align-items: flex-end;
  line-height: 1;
  gap: 0;
  user-select: none;
}
.tsa-wm-tru {
  font-family: var(--tsa-font-display);
  font-weight: 800;
  font-size: 28px;
  letter-spacing: -0.01em;
  text-transform: uppercase;
}
.tsa-wm-s {
  display: inline-flex;
  align-items: flex-end;
  margin: 0 -1px 4px -1px;
}
.tsa-wm-s svg { width: 24px; height: 36px; }
.tsa-wm-tack {
  font-family: var(--tsa-font-display);
  font-weight: 300;
  font-size: 28px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.tsa-wm-api {
  font-family: var(--tsa-font-display);
  font-weight: 600;
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin-left: 5px;
  margin-bottom: 4px;
}

/* On-navy gradient variant — applied whenever the wordmark sits on a
   tsa-sysbar or any element with the .tsa-on-navy hook. */
.tsa-sysbar .tsa-wm-tru,
.tsa-on-navy .tsa-wm-tru {
  background: linear-gradient(90deg, #818CF8, #635BFF);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.tsa-sysbar .tsa-wm-tack,
.tsa-on-navy .tsa-wm-tack {
  background: linear-gradient(90deg, #4F46E5, #3B82F6);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.tsa-sysbar .tsa-wm-api,
.tsa-on-navy .tsa-wm-api {
  background: linear-gradient(90deg, #3B82F6, #1CA8FF);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ── System bar ───────────────────────────────────────────────────── */
.tsa-sysbar {
  background: var(--tsa-navy);
  color: var(--tsa-text-on-dark);
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.85rem 1.5rem;
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid var(--tsa-rule-dark);
  font-family: var(--tsa-font-body);
}
.tsa-sysbar-left { display: flex; align-items: center; gap: 1.25rem; }
.tsa-sysbar-divider {
  width: 1px; height: 24px;
  background: rgba(255,255,255,0.18);
}
.tsa-case-name {
  font-family: var(--tsa-font-display);
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: -0.005em;
}
.tsa-case-meta {
  font-family: var(--tsa-font-mono);
  font-size: 0.7rem;
  color: var(--tsa-text-on-dark-soft);
  letter-spacing: 0.05em;
}
.tsa-case-meta .sep {
  color: var(--tsa-text-on-dark-faint);
  margin: 0 0.4rem;
}
.tsa-engine-status {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--tsa-font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--tsa-pass);
  font-weight: 600;
}
.tsa-engine-dot {
  width: 6px; height: 6px;
  background: #34D399;
  border-radius: 50%;
  animation: tsa-pulse 2.5s ease-in-out infinite;
}
@keyframes tsa-pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.55; transform: scale(0.8); }
}

/* ── Page tabs ────────────────────────────────────────────────────── */
.tsa-page-tabs {
  display: flex;
  background: var(--tsa-surface);
  padding: 0 1.5rem;
  border-bottom: 1px solid var(--tsa-rule);
  font-family: var(--tsa-font-body);
}
.tsa-page-tab {
  padding: 1rem 1.5rem;
  font-size: 0.93rem;
  font-weight: 500;
  color: var(--tsa-text-faint);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  transition: color var(--tsa-dur-fast);
}
.tsa-page-tab:hover { color: var(--tsa-text-soft); }
.tsa-page-tab--active {
  color: var(--tsa-text);
  border-bottom-color: var(--tsa-indigo);
  font-weight: 600;
}

@media (max-width: 760px) {
  .tsa-sysbar {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
  }
  .tsa-sysbar-divider { display: none; }
  .tsa-page-tabs { padding: 0; overflow-x: auto; }
  .tsa-page-tab { padding: 0.85rem 1rem; flex-shrink: 0; }
}