:root{--color-bg: #f8fafc;--color-surface: #ffffff;--color-border: #e2e8f0;--color-text: #1e293b;--color-text-secondary: #64748b;--color-text-muted: #94a3b8;--color-primary: #3b82f6;--color-primary-hover: #2563eb;--color-primary-light: #eff6ff;--color-success: #10b981;--color-success-light: #ecfdf5;--color-warning: #f59e0b;--color-warning-light: #fffbeb;--color-danger: #ef4444;--color-danger-light: #fef2f2;--color-info: #6366f1;--color-info-light: #eef2ff;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .04);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .06), 0 2px 4px -1px rgba(0, 0, 0, .04);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .08), 0 4px 6px -2px rgba(0, 0, 0, .04);--radius-sm: 6px;--radius-md: 8px;--radius-lg: 12px;--transition: .15s ease}@keyframes fadeUp{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}@keyframes fadeScaleIn{0%{opacity:0;transform:scale(.98)}to{opacity:1;transform:scale(1)}}@keyframes pulseGlow{0%{box-shadow:0 0 #3b82f640}70%{box-shadow:0 0 0 6px #3b82f600}to{box-shadow:0 0 #3b82f600}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}}*{margin:0;padding:0;box-sizing:border-box}body{font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe 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label{font-size:14px;font-weight:500;color:var(--color-text)}.input-wrapper{position:relative;display:flex;align-items:center}.input-icon{position:absolute;left:12px;color:var(--color-text-muted);pointer-events:none}.input-wrapper input{width:100%;padding:12px 12px 12px 44px;border:1px solid var(--color-border);border-radius:var(--radius-md);font-size:14px;transition:border-color var(--transition),box-shadow var(--transition)}.input-wrapper input:focus{outline:none;border-color:var(--color-primary);box-shadow:0 0 0 3px var(--color-primary-light)}.toggle-password{position:absolute;right:12px;background:none;border:none;color:var(--color-text-muted);cursor:pointer;padding:4px;display:flex;align-items:center;justify-content:center;transition:color var(--transition)}.toggle-password:hover{color:var(--color-text-secondary)}.error-message{display:flex;align-items:center;gap:8px;padding:12px;background:var(--color-danger-light);color:var(--color-danger);border-radius:var(--radius-md);font-size:14px}.login-button{display:flex;align-items:center;justify-content:center;gap:8px;padding:12px 20px;background:var(--color-primary);color:#fff;border:none;border-radius:var(--radius-md);font-size:14px;font-weight:500;cursor:pointer;transition:background-color var(--transition)}.login-button:hover:not(:disabled){background:var(--color-primary-hover)}.login-button:disabled{opacity:.7;cursor:not-allowed}.spinner{animation:spin 1s linear infinite}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.dashboard{min-height:100vh;display:flex;flex-direction:column}.header{background:var(--color-surface);border-bottom:1px solid var(--color-border);padding:12px 18px;display:flex;align-items:center;justify-content:space-between;position:sticky;top:0;z-index:100}.header-left h1{font-size:20px;font-weight:600}.header-right{display:flex;align-items:center;gap:12px}.user-email{color:var(--color-text-secondary);font-size:14px}.stats-bar{display:flex;gap:12px;padding:16px 20px;background:var(--color-surface);border-bottom:1px solid var(--color-border);overflow-x:auto}.stat-card{display:flex;align-items:center;gap:10px;padding:10px 14px;background:var(--color-bg);border-radius:var(--radius-md);min-width:140px}.stat-card.warning{background:var(--color-warning-light)}.stat-icon{flex-shrink:0}.stat-icon.pending{color:var(--color-text-muted)}.stat-icon.in-progress{color:var(--color-primary)}.stat-icon.completed{color:var(--color-success)}.stat-icon.blocked{color:var(--color-warning)}.stat-icon.overdue{color:var(--color-danger)}.stat-info{display:flex;flex-direction:column}.stat-value{font-size:20px;font-weight:600;line-height:1.2}.stat-label{font-size:12px;color:var(--color-text-secondary)}.toolbar{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 18px;flex-wrap:wrap}.toolbar-left,.toolbar-right{display:flex;align-items:center;gap:12px;flex-wrap:wrap}.search-box{position:relative;display:flex;align-items:center}.search-icon{position:absolute;left:12px;color:var(--color-text-muted);pointer-events:none}.search-box input{padding:10px 12px 10px 40px;border:1px solid var(--color-border);border-radius:var(--radius-md);font-size:14px;width:260px;transition:border-color var(--transition),box-shadow var(--transition)}.search-box input:focus{outline:none;border-color:var(--color-primary);box-shadow:0 0 0 3px var(--color-primary-light)}.filter-group{display:flex;align-items:center;gap:8px;color:var(--color-text-muted)}.filter-group select{padding:8px 12px;border:1px solid var(--color-border);border-radius:var(--radius-md);font-size:13px;background:var(--color-surface);color:var(--color-text);cursor:pointer;transition:border-color var(--transition),background-color var(--transition)}.filter-group select:hover{border-color:var(--color-primary);background:var(--color-bg)}.filter-group select:focus{outline:none;border-color:var(--color-primary);box-shadow:0 0 0 2px var(--color-primary-light)}.filter-link{display:inline-flex;align-items:center;gap:6px;padding:8px 12px;border-radius:var(--radius-md);background:var(--color-surface);border:1px solid var(--color-border);color:var(--color-primary);font-size:13px;font-weight:500;text-decoration:none;transition:border-color var(--transition),background-color var(--transition),color var(--transition)}.filter-link:hover{border-color:var(--color-primary);background:var(--color-primary-light);color:var(--color-primary)}.filter-link svg{color:currentColor}.view-toggle{display:flex;border:1px solid var(--color-border);border-radius:var(--radius-md);overflow:hidden}.toggle-btn{padding:8px 12px;background:var(--color-surface);border:none;cursor:pointer;color:var(--color-text-muted);transition:all var(--transition)}.toggle-btn:first-child{border-right:1px solid var(--color-border)}.toggle-btn:hover{color:var(--color-text)}.toggle-btn.active{background:var(--color-primary-light);color:var(--color-primary)}.btn{display:inline-flex;align-items:center;gap:6px;padding:10px 16px;border-radius:var(--radius-md);font-size:14px;font-weight:500;cursor:pointer;transition:all var(--transition);border:none}.btn-primary{background:var(--color-primary);color:#fff}.btn-primary:hover{background:var(--color-primary-hover)}.btn-secondary{background:var(--color-surface);border:1px solid var(--color-border);color:var(--color-text)}.btn-secondary:hover{background:var(--color-bg)}.btn-ghost{background:transparent;color:var(--color-text-secondary)}.btn-ghost:hover{color:var(--color-text);background:var(--color-bg)}.btn-icon{padding:10px}.icon-button{background:none;border:none;padding:8px;cursor:pointer;color:var(--color-text-muted);border-radius:var(--radius-sm);transition:all var(--transition);display:flex;align-items:center;justify-content:center}.icon-button:hover{color:var(--color-text);background:var(--color-bg)}.icon-button.danger:hover{color:var(--color-danger);background:var(--color-danger-light)}.icon-button.small{padding:4px}.main-content{flex:1;padding:0 24px 24px}.loading-state,.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:80px 20px;color:var(--color-text-secondary);text-align:center}.loading-state .spinner{color:var(--color-primary);margin-bottom:16px}.empty-state svg{color:var(--color-text-muted);margin-bottom:16px}.empty-state h3{font-size:18px;color:var(--color-text);margin-bottom:8px}.empty-state p{margin-bottom:20px}.topics-container{display:flex;flex-direction:column;gap:12px}.topics-container.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(400px,1fr));gap:12px}.topic-card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:16px;transition:box-shadow var(--transition);animation:fadeUp .26s ease}.topic-card:hover{box-shadow:var(--shadow-md)}.topic-card.overdue{border-left:4px solid var(--color-danger)}.topic-header{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;margin-bottom:8px}.topic-main{flex:1;min-width:0}.status-badge,.priority-badge,.overdue-badge{display:inline-flex;align-items:center;gap:4px;padding:4px 10px;border-radius:20px;font-size:12px;font-weight:500}.status-pending{background:#f1f5f9;color:#64748b}.status-in-progress{background:var(--color-primary-light);color:var(--color-primary)}.status-completed{background:var(--color-success-light);color:var(--color-success)}.status-blocked{background:var(--color-warning-light);color:var(--color-warning)}.priority-low{background:#f1f5f9;color:#64748b}.priority-medium{background:#fef3c7;color:#d97706}.priority-high{background:#fee2e2;color:#dc2626}.priority-critical{background:#dc2626;color:#fff}.overdue-badge{background:var(--color-danger-light);color:var(--color-danger)}.topic-title{font-size:15px;font-weight:600;color:var(--color-text);margin:0 0 2px}.topic-actions{display:flex;gap:4px;flex-shrink:0}.topic-description{color:var(--color-text-secondary);font-size:13px;margin-bottom:8px;line-height:1.6}.topic-meta{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:8px;margin-bottom:6px}.meta-info{display:flex;gap:16px;flex-wrap:wrap;align-items:center}.meta-item{display:flex;align-items:center;gap:6px;font-size:12px;color:var(--color-text-secondary)}.meta-item.comment-link{cursor:pointer;transition:color var(--transition)}.meta-item.comment-link:hover,.meta-item.comment-link:focus-visible{color:var(--color-primary)}.meta-item.text-danger{color:var(--color-danger)}.meta-status-controls{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-left:auto}.meta-status-controls .status-buttons-inline{background:var(--color-bg);border-radius:var(--radius-sm);padding:2px}.topic-tags{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:12px}.tag{display:inline-flex;align-items:center;gap:4px;padding:4px 10px;background:var(--color-bg);border-radius:20px;font-size:12px;color:var(--color-text-secondary)}.quick-status{display:flex;align-items:center;gap:12px;padding-top:16px;border-top:1px solid var(--color-border)}.quick-status-label{font-size:13px;color:var(--color-text-muted)}.status-buttons{display:flex;gap:6px}.status-btn{padding:6px 10px;border:1px solid var(--color-border);border-radius:var(--radius-sm);background:var(--color-surface);cursor:pointer;transition:all var(--transition);display:flex;align-items:center;justify-content:center}.status-btn:hover{border-color:currentColor}.status-btn.active{border-color:currentColor;background:currentColor}.status-btn.active svg{color:#fff}.status-btn.status-pending{color:#64748b}.status-btn.status-in-progress{color:var(--color-primary)}.status-btn.status-completed{color:var(--color-success)}.status-btn.status-blocked{color:var(--color-warning)}.status-buttons-inline{display:flex;gap:2px;background:var(--color-bg);border-radius:var(--radius-sm);padding:2px}.status-btn-small{padding:4px 6px;border:none;border-radius:4px;background:transparent;cursor:pointer;transition:all var(--transition);display:flex;align-items:center;justify-content:center;opacity:.5}.status-btn-small:hover{opacity:1;background:var(--color-surface)}.status-btn-small.active{opacity:1;background:var(--color-surface);box-shadow:var(--shadow-sm)}.status-btn-small.status-pending{color:#64748b}.status-btn-small.status-in-progress{color:var(--color-primary)}.status-btn-small.status-completed{color:var(--color-success)}.status-btn-small.status-blocked{color:var(--color-warning)}.topic-edit-form{display:flex;flex-direction:column;gap:16px}.form-row{display:grid;gap:16px}.form-row.three-columns{grid-template-columns:repeat(3,1fr)}.form-row:not(.three-columns){grid-template-columns:repeat(2,1fr)}.topic-edit-form input,.topic-edit-form select,.topic-edit-form textarea{width:100%;padding:10px 12px;border:1px solid var(--color-border);border-radius:var(--radius-md);font-size:14px;font-family:inherit;transition:border-color var(--transition)}.topic-edit-form input:focus,.topic-edit-form select:focus,.topic-edit-form textarea:focus{outline:none;border-color:var(--color-primary)}.topic-edit-form textarea{resize:vertical;min-height:80px}.edit-title-input{font-size:16px;font-weight:600;padding:8px 12px;border:1px solid var(--color-border);border-radius:var(--radius-md);width:100%}.edit-actions{display:flex;justify-content:flex-end;gap:12px;padding-top:8px}.comment-section{margin-top:10px;padding-top:10px;border-top:1px dashed var(--color-border);display:flex;flex-direction:column;gap:8px;background:transparent;transition:gap var(--transition)}.comment-section.collapsed{gap:4px}.comment-section.open{animation:fadeScaleIn .2s ease}.comment-section-header{display:flex;align-items:center;justify-content:space-between;gap:12px}.comment-header-trigger{flex:1;display:flex;flex-direction:column;align-items:flex-start;gap:2px;background:none;border:none;padding:0;cursor:pointer;color:inherit}.comment-header-trigger:focus-visible{outline:2px solid var(--color-primary);border-radius:var(--radius-sm);padding:2px 4px;margin:-2px -4px}.comment-empty-hint{font-size:11px;color:var(--color-text-muted)}.comment-section-title{font-size:13px;font-weight:600;margin-bottom:2px}.comment-header-actions{display:flex;align-items:center;gap:8px;flex-wrap:wrap;justify-content:flex-end}.add-comment-trigger{border:1px solid var(--color-border);border-radius:999px;background:var(--color-surface);color:var(--color-text);padding:4px 10px;font-size:12px;cursor:pointer;transition:all var(--transition)}.add-comment-trigger:hover{border-color:var(--color-primary);color:var(--color-primary)}.comments-list{display:flex;flex-direction:column;gap:4px}.no-comments{color:var(--color-text-muted);font-size:12px}.comment{display:flex;align-items:center;gap:6px;padding:6px 8px;border-radius:var(--radius-md);border:1px solid var(--color-border);background:var(--color-bg);animation:fadeUp .2s ease}.comment-author{display:flex;align-items:center;gap:4px;font-size:12px;font-weight:600;color:var(--color-text)}.comment-text{flex:1;font-size:13px;color:var(--color-text-secondary);overflow:hidden;white-space:nowrap;text-overflow:ellipsis}.comment-date{font-size:11px;color:var(--color-text-muted);white-space:nowrap;margin-left:auto;padding-left:8px}.comment .icon-button{opacity:0;transition:opacity var(--transition);padding:4px}.comment:hover .icon-button{opacity:1}.comment-toggle{border:none;background:transparent;color:var(--color-text-muted);font-size:12px;cursor:pointer;padding:0}.comment-form{display:flex;align-items:center;gap:6px}.comment-form.compact{border:1px solid var(--color-border);border-radius:var(--radius-md);padding:2px 6px;background:var(--color-surface)}.comment-input{flex:1;border:none;background:transparent;padding:6px 4px;font-size:13px}.comment-input:focus{outline:none}.modal-overlay{position:fixed;inset:0;background:#00000080;display:flex;align-items:center;justify-content:center;padding:20px;z-index:1000}.modal{background:var(--color-surface);border-radius:var(--radius-lg);width:100%;max-width:520px;max-height:90vh;overflow-y:auto;box-shadow:var(--shadow-lg)}.modal-header{display:flex;align-items:center;justify-content:space-between;padding:20px 24px;border-bottom:1px solid var(--color-border)}.modal-header h2{font-size:18px;font-weight:600}.modal-form{padding:24px;display:flex;flex-direction:column;gap:20px}.modal-form input,.modal-form select,.modal-form textarea{width:100%;padding:10px 12px;border:1px solid var(--color-border);border-radius:var(--radius-md);font-size:14px;font-family:inherit;transition:border-color var(--transition)}.modal-form input:focus,.modal-form select:focus,.modal-form textarea:focus{outline:none;border-color:var(--color-primary)}.modal-form textarea{resize:vertical;min-height:100px}.modal-actions{display:flex;justify-content:flex-end;gap:12px;padding-top:8px}.export-dropdown{position:relative}.dropdown-backdrop{position:fixed;inset:0;z-index:40}.dropdown-menu{position:absolute;top:calc(100% + 4px);right:0;background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-md);box-shadow:var(--shadow-lg);min-width:140px;width:max-content;z-index:50;overflow:hidden;animation:fadeScaleIn .18s ease}.dropdown-menu button{display:flex;align-items:center;gap:10px;width:100%;padding:10px 16px;background:none;border:none;font-size:14px;color:var(--color-text);cursor:pointer;transition:background-color var(--transition),color var(--transition)}.dropdown-menu button:hover{background:var(--color-primary-light);color:var(--color-primary)}@media(max-width:768px){.header{padding:12px 16px}.header-left h1{font-size:18px}.stats-bar{padding:16px;gap:12px}.stat-card{min-width:120px;padding:10px 12px}.toolbar{padding:12px 16px}.search-box input{width:100%}.toolbar-left{flex:1;width:100%}.main-content{padding:0 16px 16px}.topics-container.grid,.form-row,.form-row.three-columns{grid-template-columns:1fr}.topic-card{padding:16px}.quick-status{flex-direction:column;align-items:flex-start;gap:8px}}