.chat-history-sidebar{width:260px;height:100vh;position:fixed;left:0;top:0;background:rgba(10,15,28,.95);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-right:1px solid hsla(0,0%,100%,.08);display:flex;flex-direction:column;z-index:1000;animation:slideInLeft .4s cubic-bezier(.16,1,.3,1);font-family:DM Sans,sans-serif}@keyframes slideInLeft{0%{transform:translateX(-100%);opacity:0}to{transform:translateX(0);opacity:1}}.chat-sidebar-expand{position:fixed;left:2px;top:75px;min-width:52px;height:42px;padding:0 15px;background:rgba(12,21,37,.8);border:1px solid hsla(0,0%,100%,.1);border-radius:12px;color:#fff;cursor:pointer;z-index:999;display:flex;align-items:center;justify-content:center;gap:8px;font-size:14px;box-shadow:0 4px 12px rgba(0,0,0,.3);transition:all .3s cubic-bezier(.16,1,.3,1);white-space:nowrap;overflow:hidden}.chat-sidebar-expand .expand-text{max-width:0;opacity:0;transition:all .3s ease;overflow:hidden;font-weight:500}.chat-sidebar-expand:hover{background:#38bdf8;transform:translateY(-2px);min-width:160px;box-shadow:0 6px 20px rgba(56,189,248,.3)}.chat-sidebar-expand:hover .expand-text{max-width:120px;opacity:1}.chat-sidebar-header{padding:24px 20px 16px;display:flex;justify-content:space-between;align-items:center}.chat-sidebar-title{font-family:DM Mono,monospace;font-size:14px;font-weight:700;color:#38bdf8;text-transform:uppercase;letter-spacing:.1em;display:flex;align-items:center;gap:8px}.sparkle{font-size:18px;color:#fbbf24;text-shadow:0 0 10px rgba(251,191,36,.4)}.chat-sidebar-close{background:none;border:none;color:#475569;cursor:pointer;padding:4px;font-size:16px;transition:color .2s}.chat-sidebar-close:hover{color:#94a3b8}.chat-sidebar-scroll{flex:1 1;overflow-y:auto;padding:10px 12px;display:flex;flex-direction:column;gap:4px}.chat-sidebar-scroll::-webkit-scrollbar{width:4px}.chat-sidebar-scroll::-webkit-scrollbar-thumb{background:hsla(0,0%,100%,.05);border-radius:10px}.chat-history-row{background:transparent;border:1px solid transparent;border-radius:10px;padding:12px 14px;text-align:left;cursor:pointer;transition:all .2s;display:flex;flex-direction:column;gap:4px;width:100%}.chat-history-row:hover{background:hsla(0,0%,100%,.04);border-color:hsla(0,0%,100%,.06)}.chat-row-q{font-size:13px;color:#cbd5e1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-weight:500}.chat-row-meta{font-family:DM Mono,monospace;font-size:9px;color:#475569;text-transform:uppercase}.chat-sidebar-status{padding:40px 20px;text-align:center;color:#475569;font-size:13px;font-style:italic}.chat-sidebar-footer{padding:16px 20px;border-top:1px solid hsla(0,0%,100%,.06);background:hsla(0,0%,100%,.01)}.chat-footer-user{font-size:12px;color:#64748b;font-weight:600;display:flex;align-items:center;gap:8px}.chat-footer-user:before{content:"";width:8px;height:8px;background:#10b981;border-radius:50%;box-shadow:0 0 8px rgba(16,185,129,.5)}@media (max-width:1200px){.chat-history-sidebar{width:100%;max-width:300px;box-shadow:20px 0 50px rgba(0,0,0,.5)}}@media (max-width:768px){.chat-sidebar-expand{top:auto;bottom:24px;left:16px;border-radius:20px;box-shadow:0 8px 24px rgba(0,0,0,.6);background:#38bdf8;min-width:150px}.chat-sidebar-expand .expand-text{max-width:120px;opacity:1}.chat-history-sidebar{width:280px;z-index:1100;box-shadow:4px 0 40px rgba(0,0,0,.7)}.chat-history-sidebar:before{content:"";position:fixed;inset:0;left:280px;background:rgba(0,0,0,.55);z-index:-1;animation:fadeInBackdrop .3s ease both}}@keyframes fadeInBackdrop{0%{opacity:0}to{opacity:1}}