.feed-subheader-wrapper{position:sticky;top:0;z-index:40;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);background-color:color-mix(in srgb,var(--bg-body) 70%,transparent);border-bottom:1px solid var(--border);margin-top:-16px;padding-top:12px;padding-bottom:12px;margin-bottom:24px;transition:background-color .3s ease}@media (max-width:768px){.feed-subheader-wrapper{margin-top:-12px}}.feed-subheader-wrapper:focus-within,.feed-subheader-wrapper:hover{background-color:var(--bg-body)}.feed-subheader-inner{width:100%;max-width:1000px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;gap:16px}.feed-subheader-left{display:flex;align-items:center;transition:opacity .2s,width .2s}.feed-sh-link{display:flex;align-items:center;gap:6px;color:var(--text-primary);font-weight:500;font-size:13px;transition:all .2s;padding:6px 12px;border-radius:20px;background-color:var(--bg-card);border:1px solid var(--border);text-decoration:none}.feed-sh-link:hover{background-color:var(--bg-hover);border-color:var(--accent)}.feed-sh-link svg{color:var(--text-secondary);transition:color .2s}.feed-sh-link:hover svg{color:var(--accent)}.feed-subheader-right{display:flex;align-items:center;gap:12px;transition:width .3s cubic-bezier(.4,0,.2,1)}.feed-sh-search-container{position:relative;width:200px;transition:width .3s cubic-bezier(.4,0,.2,1)}.feed-sh-search-container.expanded{width:300px}.feed-sh-search-input-wrapper{position:relative;display:flex;align-items:center}.feed-sh-search-icon{position:absolute;left:12px;color:var(--text-tertiary);pointer-events:none}.feed-sh-search-input{width:100%;height:32px;padding:0 16px 0 32px;border-radius:16px;border:1px solid var(--border);background-color:var(--bg-card);color:var(--text-primary);font-size:16px;transition:all .2s}.feed-sh-search-input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 2px rgba(var(--accent-rgb,0,100,255),.1)}.feed-sh-notif-container{position:relative}.feed-sh-icon-btn{display:flex;align-items:center;justify-content:center;width:32px;height:32px;border-radius:50%;border:1px solid var(--border);background:var(--bg-card);color:var(--text-secondary);cursor:pointer;transition:all .2s}.feed-sh-icon-btn:hover{background:var(--bg-hover);color:var(--text-primary)}.feed-sh-dropdown{position:absolute;top:calc(100% + 8px);right:0;width:320px;background:var(--bg-card);border:1px solid var(--border);border-radius:12px;box-shadow:0 4px 24px rgba(0,0,0,.1);z-index:50;max-height:400px;overflow-y:auto}.search-dropdown{right:0;width:100%}.notif-dropdown{width:340px}.feed-sh-dropdown-header{padding:12px 16px;border-bottom:1px solid var(--border)}.feed-sh-dropdown-header h3{font-size:14px;font-weight:600;color:var(--text-primary);margin:0}.feed-sh-dropdown-empty{padding:24px;text-align:center;color:var(--text-tertiary);font-size:14px}.feed-sh-notif-item,.feed-sh-result-item{display:flex;align-items:flex-start;gap:12px;padding:12px 16px;text-decoration:none;border-bottom:1px solid var(--border-light);transition:background .2s}.feed-sh-notif-item:last-child,.feed-sh-result-item:last-child{border-bottom:none}.feed-sh-notif-item:hover,.feed-sh-result-item:hover{background:var(--bg-hover)}.feed-sh-notif-avatar,.feed-sh-result-avatar{width:32px;height:32px;border-radius:50%;background:var(--bg-body);display:flex;align-items:center;justify-content:center;color:var(--text-tertiary);flex-shrink:0;overflow:hidden}.feed-sh-notif-avatar img,.feed-sh-result-avatar img{width:100%;height:100%;object-fit:cover}.feed-sh-notif-info,.feed-sh-result-info{flex:1 1;min-width:0}.feed-sh-notif-title,.feed-sh-result-title{font-size:14px;font-weight:500;color:var(--text-primary);margin-bottom:2px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.feed-sh-notif-subtitle,.feed-sh-result-subtitle{font-size:12px;color:var(--text-secondary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.feed-sh-notif-date{font-size:11px;color:var(--text-tertiary);margin-top:4px}.feed-sh-result-arrow{color:var(--text-tertiary);margin-top:2px}@media (max-width:600px){.feed-sh-notif-container{position:static}.notif-dropdown{width:100%}.feed-sh-search-container{width:40px}.feed-sh-search-input{padding:0;color:transparent}.feed-sh-search-input::placeholder{color:transparent}.feed-subheader-right.search-expanded-mode{width:100%;flex:1 1}.feed-sh-search-container.expanded{width:100%}.feed-sh-search-container.expanded .feed-sh-search-input{padding:0 16px 0 32px;color:var(--text-primary)}.feed-sh-search-container.expanded .feed-sh-search-input::placeholder{color:var(--text-secondary)}.hide-on-mobile{display:none!important}}