/* QCS shared shell — единая шапка для всех приложений */

.qcs-shell {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 24px;
  padding: 8px 20px;
  background: var(--sidebar-bg);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 40;
  height: 52px;
  box-sizing: border-box;
}

.qcs-shell-left {
  display: flex;
  align-items: center;
  gap: 16px;
}

.qcs-shell-brand {
  display: flex;
  align-items: center;
  text-decoration: none;
}
.qcs-brand-text {
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--text);
  padding: 4px 10px;
  border: 1px solid var(--border-strong);
  border-radius: 8px;
  transition: all .15s;
}
.qcs-shell-brand:hover .qcs-brand-text {
  color: var(--accent);
  border-color: var(--accent);
}

.qcs-back-platform {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px 6px 8px;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 18px;
  color: var(--text-muted);
  text-decoration: none;
  font-size: 12px;
  font-weight: 500;
  transition: all .15s;
}
.qcs-back-platform:hover {
  background: var(--bg-hover);
  color: var(--accent);
  border-color: var(--accent);
}
.qcs-back-arrow { font-size: 16px; line-height: 1; }
.qcs-back-text { letter-spacing: .3px; }

.qcs-shell-mid {
  min-width: 0;
  overflow: hidden;
}
.qcs-crumbs {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.qcs-crumb {
  color: var(--text-muted);
  text-decoration: none;
  padding: 4px 8px;
  border-radius: 6px;
  transition: all .15s;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 280px;
}
.qcs-crumb:hover { color: var(--text); background: var(--bg-hover); }
.qcs-crumb.qcs-crumb-current {
  color: var(--text);
  font-weight: 600;
  pointer-events: none;
}
.qcs-crumb-sep {
  color: var(--text-muted);
  opacity: .5;
}

.qcs-shell-right { position: relative; }

.qcs-user-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 4px 10px 4px 4px;
  background: transparent;
  border: 1px solid transparent;
  border-radius: 24px;
  color: var(--text);
  cursor: pointer;
  font-family: inherit;
  font-size: 13px;
  transition: all .15s;
}
.qcs-user-btn:hover {
  background: var(--bg-hover);
  border-color: var(--border-strong);
}
.qcs-user-avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-muted));
  color: #0d0d0d;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 12px;
  text-transform: uppercase;
  overflow: hidden;
}
.qcs-user-avatar-emoji {
  background: var(--bg-input);
  font-size: 18px;
  text-transform: none;
}
.qcs-user-avatar-img {
  background: var(--bg-input);
  object-fit: cover;
  width: 28px;
  height: 28px;
}
.qcs-user-name { font-weight: 500; }
.qcs-user-caret { color: var(--text-muted); font-size: 10px; }

.qcs-user-menu {
  position: absolute;
  top: calc(100% + 6px);
  right: 0;
  width: 280px;
  background: var(--bg-raised);
  border: 1px solid var(--border-strong);
  border-radius: 12px;
  box-shadow: 0 12px 40px rgba(0,0,0,.45);
  padding: 6px;
  z-index: 100;
}
.qcs-user-menu[hidden] { display: none; }

.qcs-menu-head {
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 4px;
}
.qcs-menu-name { font-size: 13px; font-weight: 600; color: var(--text); }
.qcs-menu-role {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: .5px;
  margin-top: 2px;
}

.qcs-menu-section {
  padding: 8px 0;
  border-bottom: 1px solid var(--border);
}
.qcs-menu-section:last-child { border-bottom: none; }
.qcs-menu-label {
  font-family: var(--mono);
  font-size: 9px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
  padding: 4px 12px;
}
.qcs-theme-row {
  display: flex;
  gap: 4px;
  padding: 6px 12px;
}
.qcs-theme-mini {
  flex: 1;
  padding: 6px 8px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text-secondary);
  cursor: pointer;
  font-size: 12px;
  font-family: inherit;
}
.qcs-theme-mini:hover { background: var(--bg-hover); }
.qcs-theme-mini.is-active {
  background: var(--accent);
  color: #0d0d0d;
  border-color: var(--accent);
}

.qcs-scale-row {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 8px 12px;
}
.qcs-scale-label {
  font-size: 11px;
  color: var(--text-muted);
}
#qcs-scale-pct { color: var(--accent); font-family: var(--mono); }
#qcs-scale-slider { width: 100%; accent-color: var(--accent); cursor: pointer; }

.qcs-tts-row {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  font-size: 12px;
  color: var(--text-secondary);
  cursor: pointer;
}
.qcs-tts-row input { accent-color: var(--accent); }

.qcs-menu-link {
  display: block;
  padding: 8px 12px;
  font-size: 13px;
  color: var(--text);
  text-decoration: none;
  border-radius: 6px;
  margin: 1px 4px;
}
.qcs-menu-link:hover { background: var(--bg-hover); }
.qcs-menu-link.qcs-menu-danger { color: var(--text-muted); }
.qcs-menu-link.qcs-menu-danger:hover { color: var(--danger); }

@media (max-width: 720px) {
  .qcs-shell { padding: 6px 12px; gap: 10px; height: 48px; }
  .qcs-shell-app { padding: 6px 8px; font-size: 12px; }
  .qcs-shell-app:not(.is-active) { display: none; }
  .qcs-user-name { display: none; }
  .qcs-crumbs {
    font-size: 13px;
    overflow: hidden;
    flex-wrap: nowrap;
  }
  /* На mobile breadcrumb из 4+ уровней нечитаем («П...·Sc...·З...»).
     Решение: показываем только ТЕКУЩИЙ уровень (последний crumb).
     Возврат — через стандартный жест браузера / шапку приложения.
     Если уровней 1-2 — ничего не скрываем. */
  .qcs-crumb { max-width: 60vw; overflow: hidden; text-overflow: ellipsis; }
  .qcs-crumbs .qcs-crumb:not(:last-child) { display: none; }
  .qcs-crumbs .qcs-crumb-sep { display: none; }
  .qcs-user-menu { width: calc(100vw - 24px); right: -8px; }
}