/* Sidebar hierarchy and alignment follow the supplied reference. */
.app .sidebar{padding:6px;gap:0}
.app .sidebar .sb-head{min-height:40px;padding:0 4px 8px;gap:7px}
.app .sidebar .sb-head>.btn.desktop-only{order:-1;width:21px;min-width:21px;height:22px;min-height:22px;padding:2px}
.app .sidebar .sb-head>.btn.desktop-only .ic{width:18px;height:18px}
.app .sidebar .brand{gap:0}
.app .sidebar .brand-name{font:600 21px/1.2 Georgia,'Times New Roman',serif;letter-spacing:-.5px}
.app .sidebar .desktop-new{padding:0}
.app .sidebar .desktop-new .sb-link{height:32px;min-height:32px;border-radius:8px;padding:6px 10px;font-size:14px;line-height:20px;background:var(--surface-3)}
.app .sidebar .sidebar-search-trigger{display:flex;align-items:center;gap:8px;width:100%;height:34px;min-height:34px;margin:0 0 4px;padding:6px 10px;border:0;border-radius:7px;background:transparent;color:var(--ink);font:400 14px/20px var(--font);text-align:left;cursor:pointer}
.app .sidebar .sidebar-search-trigger:hover{background:var(--surface-2)}
.app .sidebar .sidebar-search-trigger .ic{width:18px;height:18px;flex-shrink:0}
.app .sidebar .sb-nav{padding:0 0 12px}
.app .sidebar .sb-nav .sb-link{height:34px;min-height:34px;padding:6px 10px;gap:8px;font-size:14px;line-height:20px}
.app .sidebar .sb-nav .sb-link>.ic{width:18px;height:18px}
.sb-code-row{display:flex;align-items:center;gap:4px}
.sb-code-row>.sb-link{flex:1;min-width:0}
.sb-upgrade{font-size:11px;color:var(--accent);border:1px solid var(--line-soft);border-radius:12px;padding:2px 7px;line-height:16px;text-decoration:none;margin-right:7px}
.app .sidebar .sb-history-heading{display:flex;align-items:center;justify-content:space-between;flex-shrink:0;gap:8px;min-height:28px;margin-top:6px;padding:0 10px}
.sb-history-title{display:inline-flex;align-items:center;gap:6px;max-width:calc(100% - 32px);border:0;background:transparent;color:var(--ink);font:600 12px/18px var(--font);padding:4px 0;cursor:pointer}
.app .sidebar .sb-history-heading>.btn{width:26px;min-width:26px;height:26px;min-height:26px;padding:5px;color:var(--ink-2)}
.app .sidebar .sb-list{flex:1;min-height:0;padding:3px 0 0;overflow-y:auto;scrollbar-gutter:stable;scrollbar-width:thin}
.app .sidebar .conv-item{min-height:34px;border-radius:6px}
.app .sidebar .conv-item>a{display:flex;align-items:center;gap:0;min-height:34px;height:34px;padding:7px 8px 7px 10px;color:var(--ink);font-size:14px;line-height:20px}
.app .sidebar .conv-item .conversation-dot{box-sizing:border-box;width:5px;height:5px;flex:0 0 5px;border:1px solid var(--ink-3);border-radius:50%;opacity:.65;margin:0 17px 0 4px}
.app .sidebar .conv-item>a>.ic{width:12px;height:12px;flex:0 0 12px;margin-right:14px}
.app .sidebar .conv-item>a>.gen-dot{width:6px;height:6px;flex:0 0 6px;margin:0 16px 0 4px}
.app .sidebar .conv-item>a>.ellipsis{flex:1;min-width:0;text-overflow:clip;mask-image:linear-gradient(to right,#000 calc(100% - 18px),transparent)}
.app .sidebar .conv-item .more{right:3px;z-index:1;width:24px;min-width:24px;height:26px;min-height:26px;background:var(--bg-deep);border-radius:5px}
.app .sidebar .conv-item:hover .more{background:var(--surface-2)}
.app .sidebar .sb-list[data-group-dates=false] .sb-date{display:none}
.app .sidebar .sb-list[data-group-dates=true] .sb-date{display:block;padding:10px 10px 4px;font-size:11px}
.sb-empty-note{padding:12px 10px;font-size:12px;line-height:1.6;color:var(--ink-3)}
.app .sidebar .sb-foot{display:flex;flex-wrap:wrap;align-items:center;flex-shrink:0;min-height:44px;margin-top:auto;padding:0;border-top:1px solid var(--line-soft);gap:0}
.app .sidebar .user-chip{display:flex;align-items:center;flex:1;min-width:0;width:auto;max-width:calc(100% - 36px);min-height:44px;padding:6px 8px;gap:8px}
.app .sidebar .user-chip .avatar{width:20px;height:20px;flex:0 0 20px;font-size:9px}
.sb-profile-label{min-width:0;max-width:calc(100% - 42px);font-size:13px;line-height:20px}
.sb-profile-label strong{font-weight:600}
.sb-profile-label>span{font-size:12px;color:var(--ink-3)}
.app .sidebar .user-chip>.ic{width:12px;height:12px;flex-shrink:0}
.app .sidebar .sb-device-link{width:32px;min-width:32px;height:36px;min-height:36px;padding:8px;margin-left:auto;color:var(--ink-2)}
.app .sidebar .sb-new-bottom{flex:0 0 100%}
.sidebar-search-dialog{min-height:220px;max-height:70dvh;overflow:auto}
.sidebar-search-field{display:flex;align-items:center;gap:10px;margin-bottom:18px;padding:0 12px;border:1px solid var(--line);border-radius:9px;background:var(--bg)}
.sidebar-search-field>.ic{width:18px;height:18px;color:var(--ink-3);flex-shrink:0}
.sidebar-search-field>.input{border:0;background:transparent;box-shadow:none;padding:12px 0;min-width:0;flex:1;font-size:16px}
.sidebar-search-dialog .conv-item a{padding:10px 12px;min-height:42px}
@media(min-width:901px){.app .sidebar .sb-head .brand img{display:none}}
/* Mobile navigation follows the same hierarchy as the desktop, with search first. */
@media(max-width:900px){
 .app .sidebar .sb-head{order:0;min-height:66px;height:66px;padding:10px 14px;gap:14px}
 .app .sidebar .sb-head>.btn.mobile-only{order:-1;padding:10px;width:44px;min-width:44px;height:44px;min-height:44px}
 .app .sidebar .sb-head>.btn.mobile-only .ic{width:24px;height:24px}
 .app .sidebar .sb-head .brand img{display:none}
 .app .sidebar .sb-head .brand-name{font:600 25px/1.2 Georgia,serif;letter-spacing:-.6px}
 .app .sidebar .sidebar-search-trigger{order:1;flex-shrink:0;width:calc(100% - 16px);height:48px;min-height:48px;margin:8px 8px 12px;padding:10px 16px;border-radius:12px;background:var(--surface-3);font-size:18px;gap:12px}
 .app .sidebar .sidebar-search-trigger .ic{width:22px;height:22px}
 .app .sidebar .sidebar-new{order:2;display:block;padding:0 8px 4px;flex-shrink:0}
 .app .sidebar .sidebar-new .sb-link{height:44px;min-height:44px;margin:0;padding:10px 14px;gap:12px;font-size:16px;border-radius:7px}
 .app .sidebar .sb-nav{order:3;padding:0 8px;flex-shrink:0}
 .app .sidebar .sb-nav .sb-link{height:48px;min-height:48px;padding:10px 14px;gap:14px;font-size:16px}
 .app .sidebar .sb-nav .sb-link>.ic{width:21px;height:21px}
 .app .sidebar .sb-upgrade{right:13px;font-size:14px}
 .app .sidebar .sb-history-heading{order:4;min-height:48px;margin-top:14px;padding:0 17px}
 .app .sidebar .sb-history-title{font-size:14px;gap:8px;min-height:44px}
 .app .sidebar .sb-history-heading>.btn{width:44px;min-width:44px;height:44px;min-height:44px;padding:12px}
 .app .sidebar .sb-list{order:5;padding:0 8px 6px}
 .app .sidebar .conv-item>a{height:46px;min-height:46px;padding:10px 48px 10px 14px;font-size:15px}
 .app .sidebar .conv-item .more{width:44px;min-width:44px;height:44px;min-height:44px;right:2px;top:1px}
 .app .sidebar .conv-item .conversation-dot{margin-right:17px}
 .app .sidebar .sb-foot{order:6;min-height:62px;padding:6px 12px max(6px,env(safe-area-inset-bottom));background:var(--bg-deep);border-radius:0}
 .app .sidebar .user-chip{height:48px;min-height:48px;padding:6px 4px;gap:9px;background:transparent;border-radius:0}
 .app .sidebar .user-chip .avatar{width:24px;height:24px;flex-basis:24px;font-size:11px}
 .app .sidebar .sb-profile-label{font-size:15px}
 .app .sidebar .sb-device-link{width:40px;min-width:40px;height:44px;padding:10px}
 .app .sidebar .sb-device-link .ic{width:21px;height:21px}
}
@media(max-width:600px){.app .sidebar{width:100vw!important;max-width:100vw;padding:env(safe-area-inset-top,0px) 0 0;border-radius:0;box-shadow:none}}
@media(max-width:900px) and (max-height:540px){
 .app .sidebar{overflow-y:auto;overscroll-behavior:contain}
 .app .sidebar .sb-head{position:sticky;top:0;z-index:2;background:var(--bg-deep)}
 .app .sidebar .sb-list{flex:none;min-height:96px;max-height:184px}
}
.composer .att-restore{align-self:flex-start;border:0;background:transparent;color:var(--ink-2);font:inherit;font-size:11px;text-decoration:underline;text-underline-offset:3px;padding:4px 0;cursor:pointer}
.composer .att-restore:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.skill-provenance{overflow-wrap:anywhere}
.skill-provenance details{margin:12px 0}
.skill-provenance details li{margin-bottom:10px}
.skill-provenance select{max-width:100%}