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16px;display:flex}.guest-history-prompt .prompt-icon{background:var(--surface-2);border:1px solid var(--border);width:60px;height:60px;color:var(--text-muted);border-radius:50%;justify-content:center;align-items:center;margin-bottom:16px;display:flex}.guest-history-prompt h3{color:var(--text);margin:0 0 8px;font-size:16px;font-weight:600}.guest-history-prompt p{color:var(--text-muted);margin:0 0 24px;font-size:13px;line-height:1.5}.sidebar-auth-wrapper{justify-content:center;display:flex}.empty-history{text-align:center;flex-direction:column;align-items:center;padding:60px 16px;display:flex}.empty-history svg{color:var(--text-faint);margin-bottom:14px}.empty-history h3{color:var(--text);margin:0 0 6px;font-size:15px;font-weight:600}.empty-history p{color:var(--text-muted);margin:0;font-size:12.5px;line-height:1.5}.history-skeleton-list{flex-direction:column;gap:16px;display:flex}.history-skeleton-card{background:var(--surface-2);border:1px solid var(--border);border-radius:12px;gap:12px;padding:12px;display:flex}.history-skeleton-card .skeleton-thumb{background:linear-gradient(90deg, var(--surface) 25%, var(--border) 50%, var(--surface) 75%);background-size:200% 100%;border-radius:6px;width:80px;height:48px;animation:1.5s infinite shimmer}.history-skeleton-card .skeleton-lines{flex-direction:column;flex:1;justify-content:center;gap:8px;display:flex}.history-skeleton-card .skeleton-line{background:linear-gradient(90deg, var(--surface) 25%, var(--border) 50%, var(--surface) 75%);background-size:200% 100%;border-radius:4px;height:10px;animation:1.5s infinite shimmer}.history-skeleton-card .skeleton-line.long{width:90%}.history-skeleton-card .skeleton-line.short{width:50%}.history-list{flex-direction:column;gap:14px;display:flex}.history-item-card{background:var(--surface);border:1px solid var(--border);cursor:pointer;border-radius:12px;gap:12px;padding:12px;transition:transform .2s,border-color .2s,box-shadow .2s,background .2s;display:flex}@media (width<=380px){.history-item-card{gap:10px;padding:10px}}.history-item-card:hover{border-color:var(--text-muted);background:var(--surface-2);box-shadow:0 6px 20px #00000026, 0 0 12px var(--glow-ambient);transform:translateY(-2px)}.history-item-card:active{transform:translateY(0)}.history-thumb-wrapper{border:1px solid var(--border);background:#000;border-radius:8px;flex-shrink:0;width:90px;height:52px;overflow:hidden}.history-thumb{object-fit:cover;width:100%;height:100%}.history-thumb-placeholder{width:100%;height:100%;color:var(--text-muted);justify-content:center;align-items:center;display:flex}.history-item-info{flex-direction:column;flex:1;justify-content:center;min-width:0;display:flex}.history-item-title{color:var(--text);white-space:nowrap;text-overflow:ellipsis;margin:0 0 4px;font-size:13.5px;font-weight:600;overflow:hidden}.history-item-date{color:var(--text-faint);font-size:11px;font-family:var(--font-mono);margin-bottom:4px}.history-item-snippet{color:var(--text-muted);-webkit-line-clamp:2;-webkit-box-orient:vertical;margin:0;font-size:11.5px;line-height:1.35;display:-webkit-box;overflow:hidden}.delete-item-btn{width:28px;height:28px;color:var(--text-faint);cursor:pointer;background:0 0;border:none;border-radius:6px;flex-shrink:0;justify-content:center;align-self:center;align-items:center;transition:all .2s;display:flex}.delete-item-btn:hover{color:#ef4444;background:#ef444426;transform:scale(1.1)}.delete-item-btn:active{transform:scale(.95)}@keyframes fadeUp{0%{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideInRight{0%{opacity:0;transform:translate(16px)}to{opacity:1;transform:translate(0)}}@keyframes slideInLeft{0%{opacity:0;transform:translate(-16px)}to{opacity:1;transform:translate(0)}}@keyframes pulse{0%,to{opacity:.3;transform:scale(.85)}50%{opacity:1;transform:scale(1)}}@keyframes shimmer{0%{background-position:-200%}to{background-position:200%}}@keyframes borderPulse{0%,to{border-color:var(--border);box-shadow:0 0 10px #ffffff05}50%{border-color:var(--text-muted);box-shadow:0 0 20px #ffffff14}}@keyframes ambientGlowPulse{0%,to{box-shadow:0 10px 40px -10px #00000080, 0 0 25px -5px var(--glow-ambient)}50%{box-shadow:0 14px 48px -8px #000000a6, 0 0 45px 0px var(--glow-ambient)}}.app-container{flex-direction:column;width:100%;max-width:960px;min-height:100svh;margin:0 auto;padding:0 24px;animation:.4s both fadeIn;display:flex}@media (width<=600px){.app-container{padding:0 16px}}@media (width<=380px){.app-container{padding:0 12px}}.main-content{flex-direction:column;gap:24px;padding-bottom:60px;animation:.45s both fadeUp;display:flex}@media (width<=600px){.main-content{gap:16px;padding-bottom:40px}}.split-grid{border:1px solid var(--border);border-radius:var(--radius);background:var(--surface);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);box-shadow:0 10px 40px -10px var(--glow-ambient);grid-template-columns:1fr 1fr;display:grid;overflow:hidden}@media (width<=680px){.split-grid{grid-template-columns:1fr}}.card{background:var(--surface);padding:26px;position:relative}@media (width<=480px){.card{padding:18px}}