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infinite;border-radius:var(--radius-sm)}@keyframes loading{0%{background-position:200% 0}to{background-position:-200% 0}}*:focus-visible{outline:2px solid var(--accent-primary);outline-offset:2px}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:var(--bg-surface, #111)}::-webkit-scrollbar-thumb{background:var(--border-strong, #333);border-radius:4px}::-webkit-scrollbar-thumb:hover{background:#555}.sidebar{background:var(--bg-surface, #111);box-shadow:var(--shadow-md)}.input-area{box-shadow:var(--shadow-sm)}.input-area textarea{transition:border-color var(--transition-fast, .15s ease)}.input-area textarea:focus{border-color:var(--border-strong, #333)}.genre-btn{transition:all var(--transition-fast, .15s ease)}.genre-btn:hover{transform:translateY(-1px);box-shadow:var(--shadow-sm)}.artifact-card{transition:all var(--transition-fast, .15s ease)}.artifact-card:hover{box-shadow:var(--shadow-md)}.artifact-panel{background:var(--bg-surface, #111)}.artifact-code{background:var(--bg, #0a0a0a)}.send-btn:not(:disabled):hover{box-shadow:0 0 12px #ffffff1a}.artifact-thinking-drawer{background:var(--bg-surface, #111)}.user-avatar{width:20px;height:20px;border-radius:50%;object-fit:cover;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%)}.user-avatar.hidden{display:none}.sidebar-btn .user-avatar+svg{display:block}.sidebar-btn .user-avatar:not(.hidden)+svg{display:none}.auth-hint{margin-top:12px;font-size:13px;color:var(--text-dim);text-align:center}.auth-hint a{color:var(--accent-primary);cursor:pointer;text-decoration:none}.auth-hint a:hover{text-decoration:underline}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;z-index:10000;background:#0009;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);display:flex;align-items:center;justify-content:center;opacity:0;pointer-events:none;transition:opacity .15s ease}.modal-overlay.visible{opacity:1;pointer-events:auto}.modal-dialog{background:var(--bg-elevated, #1a1a1a);border:1px solid var(--border, #1f1f1f);border-radius:12px;padding:24px;width:360px;max-width:calc(100vw - 32px);box-shadow:var(--shadow-lg, 0 10px 15px -3px rgba(0, 0, 0, .5));transform:scale(.96);transition:transform .15s ease}.modal-overlay.visible .modal-dialog{transform:scale(1)}.modal-body{margin-bottom:20px}.modal-title{font-size:14px;font-weight:600;color:var(--text, #f5f5f5);margin-bottom:8px}.modal-message{font-size:13px;color:var(--text-dim, #a0a0a0);line-height:1.5}.modal-actions{display:flex;gap:8px;justify-content:flex-end}.modal-btn{padding:8px 16px;border-radius:8px;font-size:13px;font-weight:500;font-family:var(--font);cursor:pointer;transition:all .15s ease;border:none}.modal-btn-cancel{background:#ffffff0f;color:var(--text-dim, #a0a0a0)}.modal-btn-cancel:hover{background:#ffffff1a;color:var(--text, #f5f5f5)}.modal-btn-confirm{background:var(--text, #f5f5f5);color:var(--bg, #0a0a0a)}.modal-btn-confirm:hover{opacity:.9}.modal-btn-confirm.destructive{background:var(--error, #ef4444);color:#fff}.modal-btn-confirm.destructive:hover{background:#dc2626}.toast-container{position:fixed;bottom:80px;left:50%;transform:translate(-50%);z-index:10001;display:flex;flex-direction:column;align-items:center;gap:8px;pointer-events:none}.toast{background:var(--bg-elevated, #1a1a1a);border:1px solid var(--border, #1f1f1f);color:var(--text, #f5f5f5);padding:10px 20px;border-radius:8px;font-size:13px;box-shadow:var(--shadow-md, 0 4px 6px -1px rgba(0, 0, 0, .5));opacity:0;transform:translateY(8px);transition:opacity .2s ease,transform .2s ease;pointer-events:auto}.toast.visible{opacity:1;transform:translateY(0)}.toast.toast-error{background:#f06292;border-color:#e91e8c;color:#000;font-weight:500}.library-panel{position:fixed;left:56px;top:0;bottom:0;width:300px;background:var(--bg);border-right:1px solid var(--border);display:flex;flex-direction:column;z-index:99;transform:translate(-100%);transition:transform .2s ease}.library-panel.open{transform:translate(0)}.library-header{display:flex;align-items:center;justify-content:space-between;padding:16px;border-bottom:1px solid var(--border);flex-shrink:0}.library-title{font-size:14px;font-weight:500;color:var(--text)}.library-close{width:28px;height:28px;border:none;background:transparent;color:var(--text-dim);font-size:20px;cursor:pointer;display:flex;align-items:center;justify-content:center;border-radius:6px;transition:all .15s}.library-close:hover{background:#ffffff0d;color:var(--text)}.library-tabs{display:flex;border-bottom:1px solid var(--border);flex-shrink:0}.library-tab{flex:1;padding:10px 0;background:none;border:none;border-bottom:2px solid transparent;color:var(--text-dim);font-size:13px;font-family:var(--font);cursor:pointer;transition:all .15s}.library-tab:hover{color:var(--text)}.library-tab.active{color:var(--text);border-bottom-color:var(--text)}.library-list{flex:1;overflow-y:auto;padding:6px}.library-item{display:flex;flex-direction:column;gap:2px;padding:10px 12px;border-radius:8px;cursor:pointer;transition:background .15s}.library-item:hover{background:#ffffff0f}.library-item-title{font-size:14px;font-weight:500;color:var(--text);font-family:var(--font-mono);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.library-item-meta{font-size:12px;color:var(--text-dim)}.library-empty{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;padding:32px 16px;text-align:center}.library-empty-icon{width:32px;height:32px;color:var(--text-faint)}.library-empty-text{font-size:13px;color:var(--text-dim)}.library-empty-subtext{font-size:12px;color:var(--text-faint)}.library-promo{display:flex;flex-direction:column;padding:16px;gap:16px}.library-promo-card{width:100%;height:80px;border-radius:12px;background:linear-gradient(135deg,#3a1a2e,#2a1a4a,#1a2a5a);opacity:.85}.library-promo-heading{font-size:14px;font-weight:500;color:var(--text);line-height:1.3}.library-promo-body{font-size:13px;color:var(--text-dim);line-height:1.5}.library-promo-actions{display:flex;gap:8px}.library-loading{display:flex;align-items:center;justify-content:center;padding:32px}.library-loading .spinner{width:20px;height:20px;border:2px solid var(--border);border-top-color:var(--text-dim);border-radius:50%;animation:spin .8s linear infinite}.library-load-more{display:block;width:calc(100% - 16px);margin:8px;padding:10px;background:#ffffff0d;border:1px solid var(--border);border-radius:8px;color:var(--text-dim);font-size:13px;font-family:var(--font);cursor:pointer;transition:all .15s}.library-load-more:hover:not(:disabled){background:#ffffff14;color:var(--text)}.library-load-more:disabled{cursor:default;opacity:.6}.docs-panel{position:fixed;left:56px;top:0;bottom:0;width:560px;max-width:calc(100vw - 56px);background:var(--bg);border-right:1px solid var(--border);display:flex;flex-direction:column;z-index:99;transform:translate(-100%);transition:transform .2s ease}.docs-panel.open{transform:translate(0)}.docs-header{display:flex;align-items:center;justify-content:space-between;padding:16px;border-bottom:1px solid var(--border);flex-shrink:0}.docs-title{font-size:14px;font-weight:500;color:var(--text)}.docs-header-actions{display:flex;align-items:center;gap:4px}.docs-open-external{width:28px;height:28px;border:none;background:transparent;color:var(--text-dim);cursor:pointer;display:flex;align-items:center;justify-content:center;border-radius:6px;transition:all .15s;text-decoration:none}.docs-open-external:hover{background:#ffffff14;color:var(--text)}.docs-close{width:28px;height:28px;border:none;background:transparent;color:var(--text-dim);font-size:20px;cursor:pointer;display:flex;align-items:center;justify-content:center;border-radius:6px;transition:all .15s}.docs-close:hover{background:#ffffff0d;color:var(--text)}.docs-content{flex:1;overflow:hidden}.docs-iframe{width:100%;height:100%;border:none;background:var(--bg)}.docs-fallback{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;padding:32px;text-align:center;height:100%}.docs-fallback-text{font-size:13px;color:var(--text-dim)}.docs-fallback-link{padding:8px 20px;background:var(--text);color:var(--bg);border-radius:8px;text-decoration:none;font-size:13px;font-weight:500;transition:opacity .15s}.docs-fallback-link:hover{opacity:.9}