:host,#session-tabs{--page:#edf7f1;--surface:#fffdf5;--tab-surface:#dcebdc;--tab-selected:#fff3bf;--ink:#17372f;--muted:#526b61;--line:#8ea99b;--accent:#176f60;--create-bg:#32754c;--create-hover:#285f3d;--create-ink:#ffffff;--selected-edge:#9b7745;--urgent:#c92f43;--urgent-edge:#a31324;--urgent-ink:#ffffff;--alert-ink:#8d2635;--lane-track:38%}
:where(html[data-theme="dark"]) #session-tabs{--page:#10251f;--surface:#182f27;--tab-surface:#244239;--tab-selected:#4c492d;--ink:#edf6ea;--muted:#aec6bb;--line:#587c6e;--accent:#7bd4b8;--create-bg:#86c99a;--create-hover:#a0dbb1;--create-ink:#102b1b;--selected-edge:#c9a46a;--urgent:#b3263a;--urgent-edge:#ff9bab;--urgent-ink:#ffffff;--alert-ink:#ffb7c0}
/* Desktop docks sessions as a Lanes sidebar on the left: label, activity track on a
   shared time axis, and background agents nested under their session. Root-level
   chrome stays above the workshop and body-level swipe previews. */
#session-tabs{position:fixed;top:0;bottom:var(--platform-footer-height,49px);left:0;z-index:20;isolation:isolate;box-sizing:border-box;display:flex;flex-direction:column;width:var(--session-sidebar,440px);padding:8px 0 0;overflow:hidden;background:var(--page);color:var(--ink);border-right:1px solid var(--line);box-shadow:4px 0 16px rgba(34,68,51,.1);view-transition-name:fairystack-session-tabs}
body:has(#conversation[hidden])>#session-tabs{display:none}
#session-tabs[data-shared="true"]{view-transition-name:none}
#session-tab-strip{display:flex;flex-direction:column;flex:1 1 auto;min-width:0;min-height:0}
#session-sidebar-head{display:flex;align-items:center;gap:6px;padding:0 10px 8px}
#session-sidebar-head>:is(#session-search-open,#session-restore-open){margin:0}
#session-sidebar-head>#system-sessions-spend{margin:0 0 0 auto}
#session-lanes-axis,.session-tab{display:grid;grid-template-columns:minmax(0,1fr) var(--lane-track) 22px;grid-template-rows:auto;align-items:center;column-gap:6px}
#session-lanes-axis>*,.session-tab>*{grid-row:1}
#session-lanes-axis{padding:0 10px 2px 10px;border-bottom:1px solid var(--line)}
#session-lanes-axis svg{grid-column:2;display:block;width:100%;height:18px;overflow:visible}
#session-lanes-axis .lanes-windows{display:flex;gap:3px;min-width:0}
#session-tabs .lanes-windows button{padding:1px 6px;border-color:var(--line);border-radius:5px;background:var(--surface);color:var(--ink);font-size:10px;line-height:1.4}
#session-tabs .lanes-windows button[aria-pressed="true"]{background:var(--ink);color:var(--page);border-color:var(--ink)}
#session-tabs .lanes-tick{fill:var(--muted);font-size:10px}
#session-lanes-status{margin:4px 10px 0;color:var(--muted);font:700 11px/1.2 ui-monospace,monospace;user-select:text}
#session-lanes-status[data-state="failed"]{color:var(--alert-ink)}
#session-tab-list{flex:1 1 auto;min-height:0;display:flex;flex-direction:column;gap:2px;padding:4px 4px 10px;overflow-x:hidden;overflow-y:auto;scrollbar-width:thin}
.session-tab{--row-bg:var(--page);position:relative;flex:none;min-height:40px;padding:0 4px 0 0;border:1px solid transparent;border-radius:8px;background:var(--row-bg);touch-action:pan-y}
.session-tab:not(:has([aria-selected="true"])):hover{--row-bg:color-mix(in srgb,var(--tab-surface) 55%,var(--page))}
.session-tab:has([aria-selected="true"]){--row-bg:var(--tab-selected);border-color:var(--selected-edge);box-shadow:inset 3px 0 0 var(--selected-edge),0 1px 6px rgba(116,81,37,.14)}
.session-tab>:is(button,a):first-child{position:relative;display:grid;grid-column:1;grid-template-columns:20px minmax(0,1fr);align-items:center;gap:8px;min-width:0;padding:4px 4px 4px calc(19px + var(--depth,0) * 14px);border:0;border-radius:8px 0 0 8px;background:transparent;color:var(--ink);font:inherit;text-align:left;text-decoration:none;white-space:nowrap;cursor:pointer}
.session-tab>:is(button,a):first-child *{cursor:inherit}
.session-tab>:is(button,a):first-child:focus-visible{outline:2px solid var(--accent);outline-offset:-2px}
.session-tab-track{grid-column:2;display:block;width:100%;height:30px;overflow:visible;cursor:pointer}
.session-tab-copy{display:grid;min-width:0;align-content:center;text-align:left}
.session-tab-title{display:block;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;line-height:1.25;font-size:12.5px;user-select:text;-webkit-user-select:text}
.session-tab [aria-selected="true"] .session-tab-title{font-weight:600}
.session-tab-app{display:flex;min-width:0;align-items:center;gap:3px;overflow:hidden;color:var(--muted);font-size:10px;line-height:1.3;white-space:nowrap;cursor:text;user-select:text;-webkit-user-select:text}
.session-tab-app span{min-width:0;overflow:hidden;text-overflow:ellipsis}
/* A hovered label shows its full title by overflowing in place over its track, never in a tooltip. */
.session-tab:is(:hover,:has(:focus-visible)) .session-tab-copy>:is(.session-tab-title,.session-tab-app){position:relative;z-index:3;width:max-content;max-width:calc(var(--session-sidebar,440px) - 70px);overflow:visible;padding-right:8px;background:var(--row-bg)}
.session-tab:is(:hover,:has(:focus-visible)) .session-tab-app span{overflow:visible}
.session-tab-elapsed{position:absolute;top:2px;right:2px;z-index:1;padding:0 4px;border:1px solid var(--line);border-radius:999px;background:var(--surface);color:var(--ink);font-size:9px;line-height:11px;font-variant-numeric:tabular-nums;white-space:nowrap;pointer-events:none}
.session-tab:is(:hover,:has(:focus-visible)) .session-tab-elapsed{visibility:hidden}
.runtime-fast-mark{display:inline-grid;width:11px;height:11px;margin:0 3px 0 0;place-content:center;vertical-align:-1px;color:#b8860b}.runtime-fast-mark svg{width:10px;height:10px;fill:currentColor}
:where(html[data-theme="dark"]) .runtime-fast-mark{color:#f2c14e}
#runtime-settings-trigger-label{display:inline-flex;max-width:150px;align-items:center;overflow:hidden;white-space:nowrap;text-overflow:ellipsis}
.session-state{display:grid;width:20px;height:20px;place-content:center}
.session-fairy{position:relative;background-image:var(--fairy-suite-url);background-position:100% 0;background-size:300% 100%;background-repeat:no-repeat;filter:hue-rotate(var(--fairy-hue,0deg));transform:scale(1.3)}
.session-fairy.is-working::after,.session-lane-glyph.is-working::after{position:absolute;inset:1px;border:2px solid var(--accent);border-top-color:transparent;border-radius:50%;content:"";animation:session-tab-spin .8s linear infinite}
.session-tab-favicon{display:block;width:16px;height:16px;object-fit:contain}
.session-fairy:has(.session-tab-favicon:not([hidden])){background-image:none;filter:none;transform:none}
.session-fairy.is-working:has(.session-tab-favicon:not([hidden]))::after{inset:-6px;border-width:1.5px}
/* Keep the terminal error mark red even on hue-shifted fallback fairies. */
.session-fairy.is-halted{filter:none}
.session-fairy.is-halted::before{content:"×";position:absolute;right:-4px;bottom:-3px;z-index:1;display:grid;place-items:center;box-sizing:border-box;width:14px;height:14px;border:1px solid #a51d32;border-radius:50%;background:#fffdf5;color:#a51d32;font:900 15px/1 Arial,sans-serif;pointer-events:none}
:where(html[data-theme="dark"]) .session-fairy.is-halted::before{background:#182f27;color:#ff9bab;border-color:#ff9bab}
.session-tab[data-initiation="automatic"]{opacity:.85}
/* Sessions with background agents fold them away behind a gutter caret; a folded caret carries the agent count. */
#session-tab-list .session-tab>.session-tab-fold{position:absolute;top:0;bottom:0;left:0;z-index:2;display:grid;width:15px;place-content:center;padding:0;border:0;border-radius:8px 0 0 8px;background:transparent;color:var(--muted);font:700 10px/1 system-ui,sans-serif;cursor:pointer}
.session-tab-fold::before{content:"▾"}
.session-tab-fold[aria-expanded="false"]::before{content:"▸"}
.session-tab-fold[data-count]:not([data-count=""])::before{content:"▸\A" attr(data-count);white-space:pre;text-align:center;font-size:9px;line-height:1.1}
.session-tab-fold:is(:hover,:focus-visible){background:color-mix(in srgb,var(--tab-surface) 80%,var(--accent));color:var(--accent);outline:0}
.session-tab-fold[data-tooltip]::after{left:calc(100% + 6px)}
.session-lane-child{min-height:32px}
.session-lane-child .session-tab-title{font-size:11.5px}
.session-lane-child .session-lane-glyph{position:relative;color:var(--muted);font-size:13px}
.session-lane-glyph.is-working{color:transparent}
.session-lane-glyph.is-working::after{inset:3px}
.session-tab[data-surface]>button:first-child{grid-column:1 / 3}
.session-surface-glyph{font-size:15px;line-height:1;user-select:none}
.session-tab[data-surface] .session-tab-title{font-weight:600}
.session-tab-close{grid-column:3;display:grid;align-self:center;box-sizing:border-box;width:21px;height:21px;place-content:center;padding:0 0 2px;border:0;border-radius:50%;background:transparent;color:var(--muted);font-size:15px;line-height:1;cursor:pointer}
.session-tab .session-tab-close:is(:hover,:focus-visible){background:color-mix(in srgb,var(--tab-selected) 78%,var(--accent));color:var(--accent);outline:2px solid color-mix(in srgb,var(--accent) 34%,transparent);outline-offset:-2px}
.session-tab.dragging{opacity:.55}
.session-tab [data-tooltip]{position:relative}
.session-tab [data-tooltip]::after{position:absolute;top:50%;left:calc(100% + 4px);z-index:30;padding:4px 7px;border:1px solid var(--line);border-radius:5px;background:var(--ink);color:var(--page);content:attr(data-tooltip);font-size:11px;font-weight:400;line-height:1;white-space:nowrap;pointer-events:none;transform:translateY(-50%)}
.session-tab [data-tooltip]:not(:focus-visible)::after{display:none}
@media(hover:hover) and (pointer:fine){.session-tab [data-tooltip]:hover::after{display:block}}
#session-create-control{display:flex;flex:none;align-items:stretch;height:32px;border:1px solid var(--line);border-radius:7px;background:var(--surface);overflow:hidden}#session-create-control>:is(#runtime-settings-open,#runtime-settings-link){display:flex;min-width:88px;align-items:center;justify-content:center;gap:5px;padding:0 8px;border:0;border-right:1px solid var(--line);border-radius:0;background:var(--surface);color:var(--ink);font:700 11px/1 ui-rounded,"SF Pro Rounded","Segoe UI",system-ui,sans-serif;cursor:pointer;text-decoration:none}#new-session{display:grid;width:38px;min-width:38px;min-height:0;place-content:center;padding:0;border:0;border-radius:0;background:var(--create-bg);color:var(--create-ink);font-size:19px;line-height:1;cursor:pointer}#session-create-control:has(:focus-visible){outline:2px solid color-mix(in srgb,var(--accent) 50%,transparent);outline-offset:-2px}#session-create-control>:is(button,a):is(:hover,:focus-visible){background:var(--tab-surface);outline:0}#session-create-control>#new-session:is(:hover,:focus-visible):not(:disabled){background:var(--create-hover)}#session-create-control>#new-session:disabled{background:var(--create-bg);cursor:not-allowed;opacity:.55}
#session-create-status{align-self:center;max-width:230px;margin:0 8px 8px;color:var(--muted);font:700 11px/1.2 ui-monospace,monospace}
@keyframes session-tab-spin{to{transform:rotate(360deg)}}
@media(prefers-reduced-motion:reduce){.session-fairy.is-working::after,.session-lane-glyph.is-working::after{animation:none}}
.session-tab-mic{position:absolute;right:4px;bottom:1px;display:grid;box-sizing:border-box;width:21px;height:16px;place-content:center;padding:0;border:1px solid transparent;border-radius:50%;background:transparent;color:var(--muted);font-size:13px;line-height:1;pointer-events:none;user-select:none}.session-tab-mic[hidden]{display:none}.session-tab[data-voice-delivered="true"] .session-tab-mic{background:#dff0e4;color:#173b26}
:where(html[data-theme="dark"]) .session-tab[data-voice-delivered="true"] .session-tab-mic{background:#2c3b33;color:#b8e7c7}
.session-tab:has(.session-tab-mic:not([hidden])) .session-tab-close{align-self:start;height:18px;margin-top:2px}

/* Mobile has one stable, selectable session heading; the transcript owns navigation. */
#mobile-session-header,#mobile-session-close{display:none}
@media(max-width:620px){
  #session-tabs{inset:0 0 auto;width:auto;height:44px;flex-direction:row;align-items:flex-end;padding:4px calc(4.5px + var(--mobile-navigation-clearance,0px)) 0 4.5px;border-right:0;border-bottom:1px solid rgba(55,100,78,.45);box-shadow:0 5px 18px rgba(34,68,51,.13)}
  #session-tab-strip{flex-direction:row;align-self:stretch}
  #session-sidebar-head{display:contents}
  #session-tabs :is(#session-tab-list,#session-lanes-axis,#session-lanes-status,#session-search-open,#session-restore-open,#system-sessions-spend){display:none}
  #session-create-control{align-self:stretch;height:auto;margin:0 2px 4px;border-bottom:0;border-radius:7px 7px 0 0}
  #session-tabs #session-replies-open{display:grid;place-items:center;align-self:flex-start;margin:0 0 0 4px;width:var(--mobile-header-control-size,36px);height:var(--mobile-header-control-size,36px);min-width:0;min-height:0;padding:0;border:0;font-size:calc(var(--mobile-header-control-size,36px) * .611111);line-height:1}
  body[data-composer-editing="true"] #session-tabs #session-replies-open{margin-top:1px}
  #mobile-session-header{display:flex;flex:1;min-width:0;overflow:hidden;flex-direction:column;justify-content:center;gap:2px;padding:0 4px 3px;color:var(--ink);background:var(--page);user-select:text;-webkit-user-select:text}
  .mobile-session-meta{display:flex;align-items:center;justify-content:space-between;gap:8px;min-width:0;color:var(--muted);font-size:10px;line-height:12px}
  #mobile-instance-name{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
  .mobile-session-heading{display:flex;align-items:center;justify-content:space-between;gap:8px;min-width:0}
  #mobile-session-swipe{flex:none;white-space:nowrap;font-size:10px;line-height:12px;color:var(--muted)}
  #session-tabs #mobile-release-version{flex:none;min-height:0;margin:0;padding:0;border:0;border-radius:2px;background:var(--page);color:var(--muted);font:inherit;font-variant-numeric:tabular-nums;white-space:nowrap;cursor:pointer;user-select:text;-webkit-user-select:text}
  #session-tabs #mobile-release-version[data-page-state="old"]{color:var(--ink);background:var(--tab-selected)}
  #session-tabs #mobile-release-version:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
  #mobile-session-title{display:block;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:13px;font-weight:600;line-height:17px}
  #session-tabs #mobile-session-close{display:grid;flex:none;align-self:stretch;width:44px;place-items:center;margin:0;padding:0;border:0;border-radius:4px;background:var(--page);color:var(--muted);font:22px/1 system-ui;cursor:pointer}
  #session-tabs #mobile-session-close[hidden]{display:none}
  #session-tabs #mobile-session-close:focus-visible{outline:2px solid var(--accent);outline-offset:-3px}
  #session-tabs #mobile-session-close:disabled{color:var(--muted);background:var(--surface);cursor:wait}
  #session-create-control>:is(#runtime-settings-open,#runtime-settings-link){min-width:30px;padding-inline:4px}
  #session-create-control>#new-session{width:30px;min-width:30px}
  #runtime-settings-trigger-label{display:none}
  body[data-composer-editing="true"] #session-tabs{height:32px;padding-top:0}
  body[data-composer-editing="true"] #mobile-session-header{gap:0;padding-bottom:0}
  body[data-composer-editing="true"] .mobile-session-meta{font-size:9px;line-height:11px}
  body[data-composer-editing="true"] #mobile-session-title{font-size:12px;line-height:15px}
  body[data-composer-editing="true"] #session-create-control{margin-block:1px 3px}
  body[data-composer-editing="true"] #session-create-control>button{min-height:26px;height:26px;padding-block:1px}
}
.session-tab{--promise-white:#ffffff;--promise-green:#74d68c}
#session-tab-list .session-tab[data-promise]{--promise-fill:color-mix(in srgb,var(--promise-green) calc(var(--promise) * 100%),var(--promise-white));--row-bg:var(--promise-fill)}
.session-tab-copy:has(>.session-tab-promise:not([hidden])){grid-template-columns:auto minmax(0,1fr);column-gap:4px}.session-tab-copy:has(>.session-tab-promise:not([hidden])) .session-tab-app{grid-column:1 / -1}
.session-tab .session-tab-promise{align-self:center;color:var(--ink);font-size:12px;font-weight:700;line-height:1.2;font-variant-numeric:tabular-nums;cursor:text;user-select:text;-webkit-user-select:text}.session-tab .session-tab-promise[hidden]{display:none}
:where(html[data-theme="dark"]) .session-tab{--promise-white:#050806;--promise-green:#1d8a45}
#session-tab-list .session-tab[data-attention="urgent"]{--row-bg:var(--urgent);border-color:var(--urgent-edge)}
#session-tab-list .session-tab[data-attention="urgent"] :is(button,a,.session-tab-app,.session-tab-close,.session-tab-promise){color:var(--urgent-ink)}

.chat-unread-badge{display:inline-flex;align-items:center;justify-content:center;flex:none;min-width:22px;height:22px;padding:0 5px;border-radius:999px;background:#b52c45;color:#fff;font:700 12px/1 system-ui;font-variant-numeric:tabular-nums}.chat-unread-badge[hidden]{display:none}
#session-tab-list .session-tab[data-pinned="chat"]{box-sizing:border-box;flex:0 0 44px;width:44px;min-width:44px;max-width:44px;padding:0}
#session-tab-list .session-tab[data-pinned="chat"]>button{display:flex;align-items:center;justify-content:center;gap:0;padding:3px 0}
.session-tab[data-pinned="chat"] .session-surface-glyph[hidden]{display:none}