/* ============================================================
   BrettZone v2 — Chrome (sidebar + topbar)
   Brief §14.3 (sidebar) and §14.4 (topbar)
   ============================================================ */

/* ============================================================
   Sidebar
   ============================================================ */

.bz-sidebar {
  background: linear-gradient(180deg, #17132c 0%, var(--bz-bg) 100%);
  border-right: 1px solid var(--bz-border);
  display: flex;
  flex-direction: column;
  width: var(--bz-sidebar-w);
  position: sticky;
  top: 0;
  height: 100vh;
  overflow: hidden;
  z-index: 100;
}

@media (max-width: 1099px) {
  .bz-sidebar {
    position: fixed;
    inset: 0 auto 0 0;
    transform: translateX(-100%);
    transition: transform var(--bz-d-base) var(--bz-ease);
    box-shadow: var(--bz-shadow-2);
  }
  .bz-sidebar.is-open { transform: translateX(0); }
}

/* Brand */
.bz-sidebar__brand {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 18px 18px 14px;
  border-bottom: 1px solid var(--bz-border);
  color: var(--bz-text);
  text-decoration: none;
}
.bz-sidebar__brand:hover { color: var(--bz-text); }
.bz-sidebar__logo {
  /* Official NHRL mark (white + teal/pink corner triangles) */
  width: auto;
  height: 24px;
  display: block;
  flex-shrink: 0;
  transition: filter var(--bz-d-base) var(--bz-ease);
}
.bz-sidebar__brand:hover .bz-sidebar__logo {
  filter: brightness(1.2) drop-shadow(0 0 6px rgba(207,35,202,0.45));
}
.bz-sidebar__wordmark { display: flex; flex-direction: column; line-height: 1; min-width: 0; }
.bz-sidebar__wordmark-name {
  font-family: var(--bz-font-hero);
  font-weight: 400;
  font-size: 14px;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}
.bz-sidebar__wordmark-accent { color: var(--bz-accent); }
.bz-sidebar__wordmark-sub {
  font-family: var(--bz-font-mono);
  font-size: 9px;
  letter-spacing: 0.18em;
  color: var(--bz-text-muted);
  margin-top: 3px;
}

/* Search trigger */
.bz-sidebar__search { padding: 14px 14px 6px; }
.bz-sidebar__search .bz-input {
  width: 100%;
  background: var(--bz-surface-1);
  cursor: pointer;
}

/* Nav */
.bz-sidebar__nav {
  flex: 1;
  overflow-y: auto;
  padding-bottom: 8px;
}

.bz-sidebar__group { padding: 10px 0 4px; }
.bz-sidebar__group-label {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0 18px 4px;
}
.bz-sidebar__group-hairline {
  width: 12px;
  height: 1px;
  background: var(--bz-border-strong);
  flex-shrink: 0;
}

.bz-sidebar__item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 7px 18px;
  font-size: 13px;
  font-weight: 500;
  color: var(--bz-text-dim);
  border-left: 3px solid transparent;
  text-decoration: none;
  transition: background var(--bz-d-fast) var(--bz-ease),
              color var(--bz-d-fast) var(--bz-ease);
  position: relative;
}
.bz-sidebar__item:hover {
  color: var(--bz-text);
}
.bz-sidebar__item .bz-icon { color: var(--bz-text-muted); }
.bz-sidebar__item-label { flex: 1; }

.bz-sidebar__item--active {
  background: linear-gradient(90deg, var(--bz-accent-bg) 0%, transparent 90%);
  border-left-color: var(--bz-accent);
  color: var(--bz-text);
}
.bz-sidebar__item--active .bz-icon { color: var(--bz-accent-strong); }

/* On-air rail */
.bz-sidebar__onair {
  position: relative;
  padding: 12px 14px;
  border-top: 1px solid var(--bz-border);
  background: var(--bz-live-bg);
  color: var(--bz-text);
  text-decoration: none;
}
/* Caution strip along the rail's top edge (brand guide motif) */
.bz-sidebar__onair::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 5px;
  color: var(--bz-live);
  opacity: 0.85;
  background-image: repeating-linear-gradient(
    -45deg,
    currentColor 0, currentColor 4px,
    transparent 4px, transparent 8px
  );
}
.bz-sidebar__onair:hover { background: rgba(255, 46, 61, 0.20); color: var(--bz-text); }
.bz-sidebar__onair-row {
  display: flex;
  align-items: center;
  gap: 8px;
}
.bz-sidebar__onair-meta {
  font-size: 10px;
  color: var(--bz-text-dim);
  margin-top: 4px;
  letter-spacing: 0.04em;
  line-height: 1.4;
}

/* ============================================================
   Topbar
   ============================================================ */

.bz-topbar {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0 24px;
  background: #0e0c1c;
  border-bottom: 1px solid var(--bz-border);
  font-family: var(--bz-font-mono);
  font-size: 11px;
  color: var(--bz-text-muted);
  letter-spacing: 0.06em;
  height: var(--bz-topbar-h);
  position: sticky;
  top: 0;
  z-index: 50;
}

.bz-topbar__crumb { color: var(--bz-text-dim); }
.bz-topbar__crumb--current { color: var(--bz-text); }
.bz-topbar__sep { color: var(--bz-text-faint); margin: 0 2px; }
.bz-topbar__spacer { flex: 1; }
.bz-topbar__right { display: flex; align-items: center; gap: 8px; }

.bz-topbar__mobile-toggle {
  display: none;
  width: 32px; height: 32px;
  border: none;
  background: transparent;
  color: var(--bz-text-dim);
  cursor: pointer;
  align-items: center;
  justify-content: center;
}
@media (max-width: 1099px) {
  .bz-topbar__mobile-toggle { display: inline-flex; }
}

/* ============================================================
   ⌘K command palette (Brief §14.5)
   ============================================================ */

.bz-cmdk {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 12vh 16px 16px;
  animation: bz-cmdk-fade 160ms var(--bz-ease);
}
.bz-cmdk[hidden] { display: none; }

.bz-cmdk__backdrop {
  position: absolute;
  inset: 0;
  background: var(--bz-overlay);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}

.bz-cmdk__modal {
  position: relative;
  background: var(--bz-surface-1);
  border: 1px solid var(--bz-border-strong);
  border-radius: 0 0 var(--bz-r-xs) var(--bz-r-xs);
  clip-path: polygon(
    0 0,
    calc(100% - var(--bz-cut-lg)) 0,
    100% var(--bz-cut-lg),
    100% 100%,
    0 100%
  );
  box-shadow: var(--bz-shadow-2);
  width: 100%;
  max-width: 720px;
  max-height: 70vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
/* Diagonal border along the cut edge */
.bz-cmdk__modal::before {
  content: "";
  position: absolute;
  top: calc(var(--bz-cut-lg) / 2 - 1px);
  right: calc(var(--bz-cut-lg) * -0.2071);
  width: calc(var(--bz-cut-lg) * 1.4143);
  height: 2px;
  background: var(--bz-border-strong);
  transform: rotate(45deg);
  pointer-events: none;
  z-index: 2;
}

.bz-cmdk__input {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  border-bottom: 1px solid var(--bz-border);
}
.bz-cmdk__input .bz-icon { color: var(--bz-text-muted); }
.bz-cmdk__input input {
  background: transparent;
  border: none;
  outline: none;
  color: var(--bz-text);
  font-family: var(--bz-font-ui);
  font-size: 15px;
  flex: 1;
  min-width: 0;
}
.bz-cmdk__input input::placeholder { color: var(--bz-text-muted); }
.bz-cmdk__hint {
  font-size: 10px;
  color: var(--bz-text-faint);
  border: 1px solid var(--bz-border);
  padding: 2px 6px;
  border-radius: var(--bz-r-xs);
}

.bz-cmdk__results {
  flex: 1;
  overflow-y: auto;
  padding: 8px 0;
}

.bz-cmdk__empty {
  padding: 28px 18px;
  text-align: left;
}

.bz-cmdk__group {
  padding: 8px 0 4px;
}
.bz-cmdk__group + .bz-cmdk__group {
  border-top: 1px solid var(--bz-border);
  margin-top: 4px;
}
.bz-cmdk__group-label {
  padding: 6px 18px 4px;
  font: 700 9px/1 var(--bz-font-ui);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--bz-text-faint);
}

.bz-cmdk__item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 9px 18px;
  color: var(--bz-text);
  text-decoration: none;
  cursor: pointer;
  border-left: 3px solid transparent;
  transition: background var(--bz-d-fast) var(--bz-ease);
}
.bz-cmdk__item:hover,
.bz-cmdk__item--active {
  background: var(--bz-surface-2);
  border-left-color: var(--bz-accent);
  color: var(--bz-text);
}
.bz-cmdk__item-icon {
  width: 28px;
  height: 28px;
  border-radius: var(--bz-r-sm);
  background: var(--bz-surface-3);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--bz-text-muted);
}
.bz-cmdk__item-main {
  flex: 1;
  min-width: 0;
}
.bz-cmdk__item-name {
  font-family: var(--bz-font-display);
  font-weight: 600;
  font-size: 15px;
  text-transform: uppercase;
  letter-spacing: -0.01em;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.bz-cmdk__item-meta {
  font: 500 11px/1.2 var(--bz-font-mono);
  color: var(--bz-text-muted);
  letter-spacing: 0.04em;
  margin-top: 3px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.bz-cmdk__item-tail {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  gap: 6px;
}

.bz-cmdk__foot {
  border-top: 1px solid var(--bz-border);
  padding: 8px 16px;
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 10px;
  color: var(--bz-text-muted);
  letter-spacing: 0.04em;
}
.bz-cmdk__kbd {
  font-family: var(--bz-font-mono);
  border: 1px solid var(--bz-border);
  padding: 1px 5px;
  border-radius: var(--bz-r-xs);
  margin-right: 4px;
  color: var(--bz-text-dim);
}

@keyframes bz-cmdk-fade {
  from { opacity: 0; }
  to   { opacity: 1; }
}