.empty-state{text-align:center;flex-direction:column;flex:1;justify-content:center;align-items:center;gap:12px;padding:40px 20px;display:flex}.empty-state-icon{color:var(--text-muted);opacity:.3}.empty-state-message{color:var(--text-muted);font-size:13px;font-weight:500}.empty-state-hint{color:var(--text-muted);opacity:.7;max-width:280px;font-size:12px;line-height:1.4}.loading-state{flex-direction:column;justify-content:center;align-items:center;gap:12px;min-height:120px;padding:40px 20px;display:flex}.loading-state-compact{flex-direction:row;gap:8px;min-height:0;padding:8px 0}.loading-spinner{border:2px solid var(--border);border-top-color:var(--accent);border-radius:50%;width:24px;height:24px;animation:.7s linear infinite spin}.loading-state-compact .loading-spinner{width:16px;height:16px}.loading-message{color:var(--text-muted);font-size:13px}.loading-state-compact .loading-message{font-size:12px}@keyframes spin{to{transform:rotate(360deg)}}.detail-panel-shell{background:var(--bg-secondary);border-left:1px solid var(--border);flex-direction:column;height:100%;transition:width .3s cubic-bezier(.4,0,.2,1),min-width .3s cubic-bezier(.4,0,.2,1),opacity .25s;display:flex;position:relative;overflow:hidden}.detail-panel-toggle{background:var(--bg-card);border:1px solid var(--border);cursor:pointer;z-index:10;width:20px;height:48px;color:var(--text-muted);-webkit-user-select:none;user-select:none;border-right:none;border-radius:6px 0 0 6px;justify-content:center;align-items:center;transition:color .15s,background .15s;display:flex;position:absolute;top:50%;left:-20px;transform:translateY(-50%)}.detail-panel-toggle:hover{color:var(--text-primary);background:var(--bg-card-hover)}.detail-panel-chevron{transition:transform .3s cubic-bezier(.4,0,.2,1)}.detail-panel-chevron.rotated{transform:rotate(180deg)}.tab-bar{border-bottom:1px solid var(--border);flex-shrink:0;gap:0;padding:0 12px;display:flex}.tab-btn{color:var(--text-muted);cursor:pointer;white-space:nowrap;background:0 0;border:none;border-bottom:2px solid #0000;padding:10px 14px;font-size:13px;font-weight:500;transition:color .15s,border-color .15s}.tab-btn:hover{color:var(--text-primary)}.tab-btn-active{color:var(--accent);border-bottom-color:var(--accent)}