#nav-search-panel{padding:12px}#nav-search-input{width:100%;padding:8px 10px;border:1px solid var(--line);background:var(--bg);border-radius:5px;font-size:12px}#nav-search-status{display:block;font-size:10px;color:var(--muted);margin-top:6px}
.channel-list-tools{height:34px;display:flex;align-items:center;gap:4px;padding:0 10px;color:var(--muted);font-size:11px}.channel-list-tools>span{margin-right:auto}.channel-list-tools .icon-button{width:24px;height:24px}.category-heading{width:100%;height:30px;display:flex;align-items:center;gap:7px;padding:0 12px;background:var(--toolbar);text-align:left;font-size:11px;color:var(--muted)}.category-heading span{font-size:15px}.channel-category{margin-bottom:12px}#new-channel-category{width:100%;padding:9px;border:1px solid var(--line);background:var(--bg);border-radius:5px;margin-bottom:10px}
.toolbar-drawer{display:flex;flex-direction:column;min-width:0}#idea-canvas{display:block;flex:1;width:100%;height:100%;min-height:0;touch-action:none;cursor:grab;color:var(--ink);background:var(--bg)}
#lower-spacer{height:var(--lower-open);min-height:0;flex:0 0 auto}#lower-drawer{position:fixed;bottom:0;left:0;right:0;width:100%;height:var(--lower-open);display:grid;grid-template-columns:var(--rail-width) var(--nav-width) minmax(0,1fr) var(--scroll-width);grid-template-rows:minmax(0,1fr);z-index:25;background:var(--bg);overflow:hidden}
.board-browser-rail{grid-column:1;display:flex;flex-direction:column;align-items:center;gap:0;padding:0;overflow-y:auto;scrollbar-width:none}.board-browser-rail button{width:100%;height:48px;border-radius:0;display:flex;align-items:center;justify-content:center;color:var(--muted);flex-shrink:0}.board-browser-rail button[aria-pressed=true]{color:var(--ink)}.board-browser-rail svg{width:22px;height:22px}.browser-rail-rule{display:none}
.board-browser-nav{grid-column:2;background:var(--nav,var(--surface));box-shadow:var(--column-shadow);overflow-y:auto;scrollbar-width:none;min-height:0;z-index:1}.board-browser-nav::-webkit-scrollbar,.board-browser-rail::-webkit-scrollbar{display:none}.board-nav-search{padding:9px 12px}.board-nav-search input{width:100%;background:var(--bg);border:1px solid var(--line);border-radius:5px;font-size:11px;padding:7px 8px}.board-browser-nav .nav-row{font-size:11px;gap:8px}.board-browser-nav .nav-row small{margin-left:auto;color:var(--muted);font-size:9px}
.board-browser-view{grid-column:3;min-width:0;min-height:0;display:flex;flex-direction:column}#board-browser-scroll{flex:1;min-height:0;overflow-y:auto;padding:12px var(--edge-space) 20px var(--edge-space)}#board-scroll-column{grid-column:4;position:relative;min-height:0;padding-top:0;pointer-events:none}#board-scroll-column>.scroll-track{pointer-events:auto;left:0!important}
.browser-board-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(155px,1fr));gap:18px 14px}.browser-board{min-width:0}.browser-cover{display:flex;width:100%;aspect-ratio:3/2;border-radius:9px;overflow:hidden;padding:0;gap:2px;background:var(--inset)}.browser-cover img{height:100%;width:0;flex:1;min-width:0;object-fit:cover}.cover-empty{background:var(--surface);border:1px solid var(--line)}.browser-board-caption{display:flex;gap:5px;justify-content:space-between;align-items:center;padding:7px 2px 0}.browser-board-caption strong{font-size:11px;font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.browser-board-caption small,.board-community-name{font-size:9px;color:var(--muted);white-space:nowrap}.board-community-name{display:block;padding:3px 2px 0}
.browser-masonry{columns:5 150px;column-gap:14px}.browser-pin{break-inside:avoid;margin-bottom:16px}.browser-pin-media{position:relative;border-radius:8px;overflow:hidden;background:var(--inset)}.browser-pin-media>button{width:100%;padding:0;display:block}.browser-pin-media img{display:block;width:100%;height:auto}.browser-pin-selection{position:absolute;top:7px;left:7px;background:var(--surface);padding:3px;border-radius:4px}.browser-pin-selection input{margin:0;display:block}.browser-pin>strong{display:block;font-size:11px;margin:7px 2px}.browser-pin-actions{display:flex;gap:6px}.browser-pin-actions button,#move-references{padding:5px 9px;border-radius:4px;background:var(--raised);border:1px solid var(--line);font-size:10px}#board-management{border-top:1px solid var(--line);margin-top:10px;padding:12px;display:flex;flex-direction:column;gap:7px;font-size:10px}#board-management textarea{width:100%;height:70px;resize:vertical;padding:8px;background:var(--bg);border:1px solid var(--line);border-radius:4px;font-size:11px}#board-management select{width:100%;background:var(--bg);border:1px solid var(--line);font-size:11px;padding:7px}.board-note-preview{font-size:13px;white-space:pre-wrap;line-height:1.6}
@media(max-width:760px){.board-browser-rail button{width:100%;height:44px}.board-nav-search{padding:8px}.browser-board-grid{grid-template-columns:repeat(auto-fill,minmax(120px,1fr));gap:12px}.browser-masonry{columns:2 110px}.browser-board-caption{align-items:flex-start;flex-direction:column}.board-browser-nav .nav-row{padding-inline:8px}}

@media(max-width:760px){#lower-drawer{--nav-width:clamp(105px,28vw,210px)}.board-browser-nav .nav-row{font-size:10px}.browser-board-grid{grid-template-columns:repeat(auto-fill,minmax(105px,1fr))}}

#board-nav-list .nav-row{height:42px}.board-nav-name{display:flex;flex-direction:column;gap:3px;min-width:0}.board-nav-name strong{font-size:11px;font-weight:500;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.board-browser-nav .board-nav-name small{font-size:8px;margin:0;color:var(--muted)}

/* One mobile tab switches both areas between navigation and content. */
#mobile-navigation{display:none}
@media(max-width:760px){
 :root{--rail-width:20vw;--nav-width:calc(var(--rail-width) * 4)}
 #lower-drawer{--nav-width:calc(var(--rail-width) * 4);grid-template-columns:var(--rail-width) 0 minmax(0,1fr) var(--scroll-width)}
 #community-icons .community-icon,#add-community{width:calc(var(--rail-width) - var(--edge-space) * 2);height:calc(var(--rail-width) - var(--edge-space) * 2)}
 #mobile-navigation{display:flex;align-items:center;justify-content:center;position:fixed;left:calc(var(--rail-width) / 2 - 20px);bottom:calc(var(--lower-open) + 4px);width:40px;height:40px;z-index:60;border-radius:50%;border:1px solid var(--line);background:var(--raised);color:var(--ink);box-shadow:0 2px 5px #0003,inset 0 1px 0 #ffffff45;font:22px/1 system-ui;touch-action:manipulation}
 #mobile-navigation[aria-expanded=true]{background:var(--inset);box-shadow:inset 0 1px 3px #0003,0 1px 2px #0002}
 #mobile-navigation:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
 #profile,body.in-community #topbar #menu,#topbar #menu,#close-nav{display:none!important}
 .board-browser-nav{display:none;position:absolute;grid-column:1 / -1;left:var(--rail-width);top:0;bottom:0;width:var(--nav-width);max-width:none;z-index:3;box-shadow:none}
 body.nav-open .board-browser-nav{display:block;box-shadow:none}
 body.nav-open #navigator{width:var(--nav-width);max-width:none;box-shadow:none}
 body.in-community.nav-open #main,
 body.in-community.nav-open #scroll-column,
 body.in-community.nav-open #community-pages>.community-page:not([hidden])>.chat-host>.chat-composer,
 body.nav-open .board-browser-view,
 body.nav-open #board-scroll-column{visibility:hidden;pointer-events:none}
 body.in-community.nav-open #nav-profile-bar{display:flex!important}
 body.in-community.nav-open #room-heading,body.in-community.nav-open #top-pull{visibility:hidden}
 body.in-community.nav-open #nav-tools-bar{width:calc(var(--nav-width) - 72px)}
}

@media(max-width:760px){
 #workspace,body.in-community #workspace,body.in-community.nav-collapsed #workspace{margin-left:0}
 body:not(.nav-open) #rail{display:none}
 body:not(.nav-open) .board-browser-rail{display:none}
 body:not(.nav-open) #lower-drawer{grid-template-columns:0 0 minmax(0,1fr) var(--scroll-width)}
 #topbar{padding-left:calc(var(--rail-width) + 8px)}
 #bottom-bar{padding-left:calc(var(--rail-width) + 8px)}
 body.chat-room #community-pages>.community-page:not([hidden])>.chat-host>.chat-composer{left:0;padding-left:calc(var(--rail-width) + 26px)}
 .composer-pull-left{left:calc(var(--rail-width) + 8px)}
}

@media(max-width:760px){
 :root{--scroll-width:0px}
 #scroll-column,#board-scroll-column{display:none}
}

@media(max-width:760px){
 body.nav-open #main,body.nav-open #search-form{visibility:hidden;pointer-events:none}
 body.nav-open #nav-tools-bar,body.nav-open #nav-profile-bar{display:flex!important}
 body.nav-open #nav-tools-bar{width:calc(var(--nav-width) - 72px)}
 body.nav-open #top-pull{visibility:hidden}
}

@media(max-width:760px){
 #world-corner{z-index:61}
 body #topbar,body.chat-pullouts.upper-extended #topbar{padding-left:calc(var(--rail-width) + 8px)}
 body #bottom-bar,body.chat-pullouts.lower-extended #bottom-bar{padding-left:calc(var(--rail-width) + 8px)}
}

@media(max-width:760px){
 body.chat-room.lower-extended #community-pages>.community-page:not([hidden])>.chat-host>.chat-composer{left:0;padding:0 26px 0 calc(var(--rail-width) + 26px)}
}

/* Floating navigation controls stay outside the shared toolbar rows. */
body #menu.nav-tab,body #mobile-navigation.nav-tab{position:fixed;display:flex;align-items:center;justify-content:center;width:36px;min-width:36px;height:36px;min-height:36px;margin:0;padding:0;border:1px solid var(--line);border-radius:50%;background:var(--nav,var(--surface));box-shadow:0 3px 9px #0003,inset 0 1px 0 #ffffff25;color:var(--muted);z-index:45;touch-action:manipulation;cursor:pointer}
body #menu.nav-tab{top:calc(var(--upper-open) + 56px);bottom:auto;left:calc(var(--rail-width) + var(--nav-width) + 8px)}
body #mobile-navigation.nav-tab{top:calc(100dvh - var(--lower-open) + 8px);bottom:auto;left:calc(var(--rail-width) + var(--nav-width) + 8px)}
body #menu.nav-tab svg,body #mobile-navigation.nav-tab svg{display:block;width:22px;height:18px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;pointer-events:none}
body .nav-tab[aria-expanded=true]{color:var(--ink)}
body .nav-tab:hover{color:var(--ink);box-shadow:0 4px 12px #0004,inset 0 1px 0 #ffffff25}
body .nav-tab:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
body #menu.nav-tab[hidden],body #mobile-navigation.nav-tab[hidden]{display:none!important}
#close-nav{display:none!important}
#community-icons{padding-top:12px}
.board-browser-rail{padding-top:0}
@media(min-width:761px){
 body.board-nav-collapsed #lower-drawer{grid-template-columns:var(--rail-width) 0 minmax(0,1fr) var(--scroll-width)}
 body.board-nav-collapsed .board-browser-nav{display:none}
}
@media(max-width:760px){
 body #menu.nav-tab,body #mobile-navigation.nav-tab{display:flex!important}
 body #menu.nav-tab[hidden],body #mobile-navigation.nav-tab[hidden]{display:none!important}
 body:not(.nav-open) #board-browser-scroll{padding-top:32px}
 body.chat-room #community-pages>.community-page:not([hidden])>.chat-host>.chat-composer,
 body.chat-room.lower-extended #community-pages>.community-page:not([hidden])>.chat-host>.chat-composer{padding-left:26px}
 .composer-pull-left{left:0}
 body #bottom-bar,body.chat-pullouts.lower-extended #bottom-bar{padding-left:0}
}

/* Tabs attach to the content side of the rail/navigation boundary. */
@media(min-width:761px){
 body.nav-collapsed #menu.nav-tab,body.board-nav-collapsed #mobile-navigation.nav-tab{left:calc(var(--rail-width) + 8px)}
}
@media(max-width:760px){
 body #menu.nav-tab,body #mobile-navigation.nav-tab{left:8px}
 body.nav-open #menu.nav-tab,body.nav-open #mobile-navigation.nav-tab{left:calc(100vw - 44px)}
 #discover-view{padding-top:32px}
}
#board-browser-scroll{padding-top:32px}

/* The idea canvas spans the whole shell while still reserving drawer height. */
#upper-drawer{width:100vw;max-width:none;align-self:flex-start;margin-left:calc(0px - var(--rail-width))}
body.in-community:not(.nav-collapsed) #upper-drawer{margin-left:calc(0px - var(--rail-width) - var(--nav-width))}
@media(max-width:760px){
 #upper-drawer,body.in-community:not(.nav-collapsed) #upper-drawer{margin-left:0}
}

/* The shelf uses the navigation material across all three working columns. */
#lower-drawer,.board-browser-rail,.board-browser-nav,.board-browser-view{
 background:var(--nav,var(--surface));
}
#board-browser-scroll{background:transparent}


/* Shelf controls share the community rail's tile mask, scale, and rhythm. */
.board-browser-rail{padding:12px var(--edge-space);gap:12px}
.board-browser-rail button{
 width:calc(var(--rail-width) - var(--edge-space) * 2);height:calc(var(--rail-width) - var(--edge-space) * 2);
 min-height:calc(var(--rail-width) - var(--edge-space) * 2);border-radius:11px;padding:0;
 position:relative;background:var(--surface);border:1px solid var(--line);box-shadow:var(--control-shadow);overflow:hidden;
}
.board-browser-rail svg{width:32px;height:32px}
.board-browser-rail button[aria-pressed=true]{color:var(--ink)}
.board-browser-rail button[aria-pressed=true]:after{content:"";position:absolute;right:6px;bottom:6px;width:4px;height:4px;border-radius:50%;background:var(--accent)}
.board-browser-rail button:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
@media(max-width:760px){.board-browser-rail button{border-radius:9px}}