/* Tools and Mesa opt in explicitly. Home keeps the original shell. */
html.statera-app.st-app-shell[data-ui-system="tools"][data-ui-shell="tools"] {
  --st-tools-rail-width: 248px;
}

html.statera-app.st-app-shell[data-ui-system="tools"][data-ui-shell="tools"] .st-shell-nav-group {
  display: none;
  margin: 16px 10px 4px;
  padding: 0;
  color: var(--st-muted);
  font: 600 12px/1.35 var(--st-font);
  letter-spacing: .025em;
}

html.statera-app.st-app-shell[data-ui-system="tools"][data-ui-shell="tools"].st-nav-expanded .st-shell-nav-group {
  display: block;
}

html.statera-app.st-app-shell[data-ui-system="tools"][data-ui-shell="tools"].st-nav-expanded .st-rail {
  width: var(--st-tools-rail-width) !important;
}

html.statera-app.st-app-shell[data-ui-system="tools"][data-ui-shell="tools"].st-nav-expanded .st-navigation .st-nav-action {
  padding: 9px 10px !important;
  gap: 10px !important;
}

html.statera-app.st-app-shell[data-ui-system="tools"][data-ui-shell="tools"].st-nav-expanded .st-navigation .st-nav-label {
  font-size: 14px !important;
  line-height: 1.35 !important;
}

html.statera-app.st-app-shell[data-ui-system="tools"][data-ui-shell="tools"] .st-shell-toggle-label {
  display: none;
}

html.statera-app.st-app-shell[data-ui-system="tools"][data-ui-shell="tools"] :is(.st-nav-action, .st-shell-preferences > summary):focus-visible {
  outline: 2px solid var(--st-gold) !important;
  outline-offset: 2px;
}

/* One quiet entry contains the existing account, language and theme controls. */
html.statera-app.st-app-shell[data-ui-system="tools"][data-ui-shell="tools"] .st-shell-preferences {
  position: relative;
  flex: 0 0 auto;
  margin: 0 0 0 auto;
  min-width: 0;
  max-width: 152px;
  z-index: 205;
}

html.statera-app.st-app-shell[data-ui-system="tools"][data-ui-shell="tools"] .st-shell-preferences > summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  min-height: 44px;
  padding: 8px 10px;
  border: 1px solid var(--st-border);
  border-radius: 6px;
  background: var(--st-surface);
  color: var(--st-text);
  font: 500 14px/1.25 var(--st-font);
  list-style: none;
  cursor: pointer;
  box-sizing: border-box;
}

html.statera-app.st-app-shell[data-ui-system="tools"][data-ui-shell="tools"] .st-shell-preferences > summary::-webkit-details-marker {
  display: none;
}

html.statera-app.st-app-shell[data-ui-system="tools"][data-ui-shell="tools"] .st-shell-preferences > summary::after {
  content: "";
  width: 6px;
  height: 6px;
  flex: none;
  margin-top: -3px;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  transform: rotate(45deg);
}

html.statera-app.st-app-shell[data-ui-system="tools"][data-ui-shell="tools"] .st-shell-preferences[open] > summary::after {
  transform: rotate(225deg);
  margin-top: 3px;
}

html.statera-app.st-app-shell[data-ui-system="tools"][data-ui-shell="tools"] .st-shell-preferences > summary:is(:hover, :focus-visible) {
  background: var(--st-raised);
}

html.statera-app.st-app-shell[data-ui-system="tools"][data-ui-shell="tools"] .st-shell-preferences > summary:is([data-state="error"], [data-state="conflict"]) {
  color: var(--st-negative);
  border-color: var(--st-negative);
}

html.statera-app.st-app-shell[data-ui-system="tools"][data-ui-shell="tools"] .st-shell-preferences > .st-header-utilities {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  display: flex !important;
  flex-direction: column;
  align-items: stretch;
  gap: 12px;
  width: min(280px, calc(100vw - 32px));
  max-height: calc(100dvh - 120px);
  margin: 0;
  padding: 16px;
  overflow: auto;
  overscroll-behavior: contain;
  box-sizing: border-box;
  border: 1px solid var(--st-border);
  border-radius: 8px;
  background: var(--st-surface);
  box-shadow: 0 12px 32px #0003;
}

html.statera-app.st-app-shell[data-ui-system="tools"][data-ui-shell="tools"] .st-shell-preferences:not([open]) > .st-header-utilities {
  display: none !important;
}

html.statera-app.st-app-shell[data-ui-system="tools"][data-ui-shell="tools"] .st-shell-preferences .tools-language {
  display: grid !important;
  gap: 6px;
  width: 100% !important;
}

html.statera-app.st-app-shell[data-ui-system="tools"][data-ui-shell="tools"] .st-shell-preferences .tools-language > span {
  position: static !important;
  display: block !important;
  width: auto !important;
  height: auto !important;
  padding: 0 !important;
  margin: 0 !important;
  clip: auto !important;
  clip-path: none !important;
  overflow: visible !important;
  white-space: normal !important;
  color: var(--st-muted);
  font-size: 13px;
  line-height: 1.3;
}

html.statera-app.st-app-shell[data-ui-system="tools"][data-ui-shell="tools"] .st-shell-preferences :is(select, .st-account-link, #tools-account-toggle, [data-app-theme-toggle]) {
  width: 100% !important;
  min-width: 0 !important;
  max-width: none !important;
  min-height: 44px !important;
  box-sizing: border-box;
}

html.statera-app.st-app-shell[data-ui-system="tools"][data-ui-shell="tools"] .st-shell-preferences :is(select, a, button):focus-visible {
  outline: 2px solid var(--st-gold) !important;
  outline-offset: 2px;
}

html.statera-app.st-app-shell[data-ui-system="tools"][data-ui-shell="tools"] .st-shell-preferences [data-app-theme-toggle] {
  display: flex !important;
  align-items: center;
  justify-content: flex-start;
  gap: 10px;
  height: auto !important;
  padding: 8px 10px !important;
  border: 1px solid var(--st-border) !important;
  border-radius: 6px !important;
  background: var(--st-raised) !important;
  color: var(--st-text) !important;
}

html.statera-app.st-app-shell[data-ui-system="tools"][data-ui-shell="tools"] .st-shell-preferences [data-app-theme-toggle]::after {
  content: attr(aria-label);
  font: 500 14px/1.35 var(--st-font);
  text-align: left;
  white-space: normal;
}

/* The page heading precedes the session context and its secondary creation action. */
html.statera-app.st-app-shell[data-ui-system="tools"][data-ui-shell="tools"] .workspace .topbar {
  align-items: flex-end;
  gap: 12px 16px;
}

html.statera-app.st-app-shell[data-ui-system="tools"][data-ui-shell="tools"] .workspace .topbar > div:first-of-type {
  flex: 1 1 0;
  order: 1;
  min-width: 0;
}

html.statera-app.st-app-shell[data-ui-system="tools"][data-ui-shell="tools"] .workspace .topbar > .st-shell-preferences {
  order: 3;
}

html.statera-app.st-app-shell[data-ui-system="tools"][data-ui-shell="tools"] .workspace .top-actions {
  display: grid;
  grid-template-columns: minmax(160px, 230px) auto;
  grid-template-rows: auto 44px;
  order: 2;
  flex: 0 1 auto;
  align-items: center;
  width: auto;
  min-width: 0;
  gap: 4px 8px;
  padding: 0;
  border: 0;
}

html.statera-app.st-app-shell[data-ui-system="tools"][data-ui-shell="tools"] .top-actions > label[for="session-picker"] {
  grid-area: 1 / 1;
  position: static !important;
  width: auto !important;
  height: auto !important;
  margin: 0 !important;
  padding: 0 !important;
  clip: auto !important;
  clip-path: none !important;
  overflow: visible !important;
  white-space: normal !important;
  color: var(--st-muted);
  font-size: 13px;
  line-height: 1.3;
}

html.statera-app.st-app-shell[data-ui-system="tools"][data-ui-shell="tools"] #session-picker {
  grid-area: 2 / 1;
  min-width: 0;
  width: 100% !important;
  max-width: 230px;
  height: 44px;
  min-height: 44px;
  box-sizing: border-box;
}

html.statera-app.st-app-shell[data-ui-system="tools"][data-ui-shell="tools"] #new-session {
  grid-area: 2 / 2;
  margin: 0;
  background: transparent !important;
  color: var(--st-text) !important;
  border: 1px solid var(--st-border) !important;
  box-shadow: none !important;
  font-weight: 500 !important;
}

html.statera-app.st-app-shell[data-ui-system="tools"][data-ui-shell="tools"] #new-session:hover {
  background: var(--st-raised) !important;
}

html.statera-app.st-app-shell[data-ui-system="tools"][data-ui-shell="tools"]:is([data-ui-shell-route="wheel"], [data-ui-shell-route="bets"], [data-ui-shell-route="library"]) #new-session {
  display: none !important;
}

@media (min-width: 1024px) {
  html.statera-app.st-app-shell[data-ui-system="tools"][data-ui-shell="tools"].st-nav-expanded {
    --st-rail-width: 248px;
  }
  html.statera-app.st-app-shell[data-ui-system="tools"][data-ui-shell="tools"].st-nav-expanded:has(#content[data-tools-view="home"]){--st-rail-width:264px;--st-tools-rail-width:264px}
}

@media (min-width: 769px) and (max-width: 1023px) {
  html.statera-app.st-app-shell[data-ui-system="tools"][data-ui-shell="tools"].st-nav-expanded .st-rail {
    box-shadow: 8px 0 32px #0003;
  }
}

@media (min-width: 769px) and (max-width: 1023px) {
  html.statera-app.st-app-shell[data-ui-system="tools"][data-ui-shell="tools"] .workspace .top-actions {
    order: 3;
    flex-basis: 100%;
    width: 100%;
    grid-template-columns: minmax(0, 1fr) auto;
  }

  html.statera-app.st-app-shell[data-ui-system="tools"][data-ui-shell="tools"] .workspace .topbar > .st-shell-preferences {
    order: 2;
  }

  html.statera-app.st-app-shell[data-ui-system="tools"][data-ui-shell="tools"] #session-picker {
    max-width: none;
  }
}

@media (max-width: 1023px) {
  html.statera-app.st-app-shell[data-ui-system="tools"][data-ui-shell="tools"].st-nav-expanded .st-rail {
    z-index: 220 !important;
  }
}

@media (max-width: 768px) {
  html.statera-app.st-app-shell[data-ui-system="tools"][data-ui-shell="tools"] .st-shell-preferences {
    max-width: 132px;
  }

  html.statera-app.st-app-shell[data-ui-system="tools"][data-ui-shell="tools"] .st-shell-preferences > summary {
    padding: 6px 8px;
    font-size: 13px;
  }

  html.statera-app.st-app-shell[data-ui-system="tools"][data-ui-shell="tools"] .top-actions > label[for="session-picker"] {
    grid-area: 1 / 1;
  }

  html.statera-app.st-app-shell[data-ui-system="tools"][data-ui-shell="tools"] .workspace .top-actions {
    order: 3;
    flex-basis: 100%;
    grid-template-columns: minmax(0, 1fr) auto;
    width: 100%;
  }

  html.statera-app.st-app-shell[data-ui-system="tools"][data-ui-shell="tools"] .workspace .topbar > .st-shell-preferences {
    order: 2;
  }

  html.statera-app.st-app-shell[data-ui-system="tools"][data-ui-shell="tools"] #session-picker {
    width: 100%;
    max-width: none;
  }

  html.statera-app.st-app-shell[data-ui-system="tools"][data-ui-shell="tools"] #new-session {
    flex: 0 0 auto;
    padding-inline: 9px;
    font-size: 13px;
  }

  /* Keep the existing 60 px reservation used by Mesa and Tools. */
  html.statera-app.st-app-shell[data-ui-system="tools"][data-ui-shell="tools"]:not(.st-nav-expanded) .st-rail {
    padding: 4px !important;
  }

  html.statera-app.st-app-shell[data-ui-system="tools"][data-ui-shell="tools"]:not(.st-nav-expanded) .st-rail .st-primary-nav {
    flex: 1 1 auto !important;
    min-width: 176px;
  }

  html.statera-app.st-app-shell[data-ui-system="tools"][data-ui-shell="tools"]:not(.st-nav-expanded) .st-rail .st-mobile-primary {
    flex: 1 1 0 !important;
    flex-direction: column !important;
    justify-content: center !important;
    gap: 2px !important;
    width: auto !important;
    min-width: 44px !important;
    height: 52px !important;
    padding: 3px 0 !important;
    margin: 0 !important;
  }

  html.statera-app.st-app-shell[data-ui-system="tools"][data-ui-shell="tools"]:not(.st-nav-expanded) .st-mobile-primary svg {
    width: 20px !important;
    height: 20px !important;
    min-width: 20px;
  }

  html.statera-app.st-app-shell[data-ui-system="tools"][data-ui-shell="tools"]:not(.st-nav-expanded) .st-mobile-primary .st-nav-label {
    position: static !important;
    display: block !important;
    width: auto !important;
    height: auto !important;
    clip-path: none !important;
    overflow: visible !important;
    white-space: nowrap !important;
    font: 500 11.5px/1.25 var(--st-font) !important;
    text-align: center !important;
  }

  html.statera-app.st-app-shell[data-ui-system="tools"][data-ui-shell="tools"]:not(.st-nav-expanded) .st-rail .st-tools-toggle {
    flex-direction: column !important;
    gap: 2px !important;
    width: calc(100% - 176px) !important;
    max-width: 164px;
    height: 52px !important;
    padding: 3px 6px !important;
    border-left-color: var(--st-border) !important;
    border-radius: 0 !important;
  }

  html.statera-app.st-app-shell[data-ui-system="tools"][data-ui-shell="tools"]:not(.st-nav-expanded) .st-tools-toggle svg {
    width: 20px !important;
    height: 20px !important;
    min-width: 20px;
  }

  html.statera-app.st-app-shell[data-ui-system="tools"][data-ui-shell="tools"]:not(.st-nav-expanded) .st-shell-toggle-label {
    display: block;
    width: 100%;
    color: inherit;
    font: 500 12px/1.1 var(--st-font);
    text-align: center;
    white-space: normal;
  }

  html.statera-app.st-app-shell[data-ui-system="tools"][data-ui-shell="tools"]:not(.st-nav-expanded) .st-tools-toggle[data-current-section="true"] {
    color: var(--st-gold) !important;
    background: var(--st-selected) !important;
  }

  html.statera-app.st-app-shell[data-ui-system="tools"][data-ui-shell="tools"].st-nav-expanded .st-rail {
    width: min(296px, calc(100% - 24px)) !important;
  }
}