:root{color-scheme:light dark;--color-bg-primary:#ffffff;--color-bg-secondary:#f7f8fb;--color-bg-tertiary:#eef1f6;--color-text-primary:#1b2430;--color-text-secondary:#3f4a58;--color-text-muted:#6a7585;--color-border:#d3d9e3;--color-accent:#2f5ae3;--color-state-error:#c41f3a;--color-state-warning:#9a6500;--color-state-success:#2d7b2f;--color-state-info:#14639e;--font-sans:"Segoe UI","Noto Sans",system-ui,sans-serif;--font-mono:"SFMono-Regular",Menlo,Consolas,"Liberation Mono",monospace;--font-size-11:11px;--font-size-12:12px;--font-size-13:13px;--font-size-15:15px;--font-weight-regular:400;--font-weight-medium:500;--space-1:4px;--space-2:8px;--space-3:12px;--space-4:16px;--space-6:24px;--space-8:32px;--radius-sm:5px;--border-hairline:1px;--sidebar-width:360px;--ai-column-width:320px;--status-height:48px}@media (prefers-color-scheme:dark){:root{--color-bg-primary:#11161e;--color-bg-secondary:#181f2a;--color-bg-tertiary:#242d3a;--color-text-primary:#e8edf5;--color-text-secondary:#c7d0dd;--color-text-muted:#96a3b6;--color-border:#2e3949;--color-accent:#86a2ff;--color-state-error:#ff6f88;--color-state-warning:#ffc56b;--color-state-success:#89d98a;--color-state-info:#7dc3f0}}*{box-sizing:border-box}body,html{margin:0;padding:0;height:100%}body{font-family:var(--font-sans);font-size:var(--font-size-13);font-weight:var(--font-weight-regular);color:var(--color-text-primary);background:var(--color-bg-primary)}button,input{font:inherit}.app-shell{display:flex;flex-direction:column;height:100vh;min-height:0}.app-chrome{position:-webkit-sticky;position:sticky;top:0;z-index:2;flex:0 0 auto;border-bottom:var(--border-hairline) solid var(--color-border);background:var(--color-bg-primary)}.app-chrome-row--primary{display:flex;align-items:center;gap:var(--space-4);padding:var(--space-3) var(--space-4);flex-wrap:wrap}.app-chrome-leading{flex:1 1 12rem;min-width:0;display:flex;align-items:baseline;flex-wrap:wrap;gap:var(--space-2);font-size:var(--font-size-15)}.app-wordmark{font-weight:var(--font-weight-medium);color:var(--color-text-primary)}.app-chrome-sep{color:var(--color-text-muted);-webkit-user-select:none;-moz-user-select:none;user-select:none}.app-scope{color:var(--color-text-secondary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:min(40vw,24rem)}.app-chrome-search-wrap{flex:1 1 14rem;max-width:min(28rem,100%);min-width:0}.app-chrome-search-static{pointer-events:none;display:flex;align-items:center;justify-content:space-between;gap:var(--space-3);padding:var(--space-2) var(--space-3);border:var(--border-hairline) solid var(--color-border);border-radius:var(--radius-sm);background:var(--color-bg-secondary);color:var(--color-text-muted);font-size:var(--font-size-12)}.app-chrome-search-placeholder{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;min-width:0}.app-chrome-search-kbd{flex-shrink:0;font-family:var(--font-mono);font-size:var(--font-size-11);padding:.1em .35em;border:var(--border-hairline) solid var(--color-border);border-radius:var(--radius-sm);background:var(--color-bg-primary);color:var(--color-text-secondary)}.app-chrome-trailing{flex:0 0 auto;display:flex;align-items:center;gap:var(--space-3);margin-left:auto}.app-chrome-row--meta{flex-wrap:wrap;padding:var(--space-2) var(--space-4);border-top:var(--border-hairline) solid var(--color-border);background:var(--color-bg-secondary)}.app-chrome-meta-grow,.app-chrome-row--meta{display:flex;align-items:center;gap:var(--space-3)}.app-chrome-meta-grow{flex:1 1 auto;flex-wrap:wrap;min-width:0}.status-title{font-size:var(--font-size-15);font-weight:var(--font-weight-medium)}.status-meta{color:var(--color-text-secondary)}.status-meta.error{color:var(--color-state-error)}.status-revision-sha{max-width:min(52vw,42rem);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.status-revision-refresh{display:inline-flex;align-items:center;justify-content:center;min-width:2rem;min-height:2rem;padding:0 var(--space-2);margin:0;border:var(--border-hairline) solid var(--color-border);border-radius:var(--radius-sm);background:var(--color-bg-secondary);color:var(--color-text-primary);cursor:pointer;font-size:var(--font-size-15);line-height:1}.status-revision-refresh:disabled{opacity:.55;cursor:not-allowed}.app-shell-main{flex:1 1 auto;min-height:0;display:flex;flex-direction:column;position:relative}.app-commit-revision-loader{position:absolute;inset:0;z-index:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:var(--space-4);background:color-mix(in srgb,var(--color-bg-primary) 88%,transparent);pointer-events:auto}.app-commit-revision-loader-label{font-size:var(--font-size-13);color:var(--color-text-secondary)}.app-commit-revision-loader-spinner{width:2rem;height:2rem;border:3px solid var(--color-border);border-top-color:var(--color-accent);border-radius:50%;animation:app-commit-revision-spin .75s linear infinite}@keyframes app-commit-revision-spin{to{transform:rotate(1turn)}}.layout{display:grid;grid-template-columns:var(--sidebar-width) var(--space-1) minmax(0,1fr) var(--space-1) var(--ai-column-width);flex:1 1 auto;min-height:0}.left{overflow:auto;min-height:0;background:var(--color-bg-secondary);padding:var(--space-3)}.divider{background:var(--color-bg-tertiary);border-right:var(--border-hairline) solid var(--color-border);border-left:var(--border-hairline) solid var(--color-border);cursor:col-resize;-webkit-user-select:none;-moz-user-select:none;user-select:none}.right{padding:var(--space-4)}.ai-chat,.right{overflow:auto;min-height:0}.ai-chat{display:flex;flex-direction:column;min-width:0;border-left:var(--border-hairline) solid var(--color-border);background:var(--color-bg-secondary);padding:var(--space-3)}.ai-chat-header{display:flex;align-items:center;justify-content:space-between;gap:var(--space-2);margin-bottom:var(--space-2)}.ai-chat-title{margin:0;font-size:var(--font-size-15);font-weight:var(--font-weight-medium)}.ai-chat-new{padding:var(--space-1) var(--space-2);opacity:.65;cursor:not-allowed}.ai-chat-new,.ai-chat-scope{font-size:var(--font-size-12)}.ai-chat-scope{margin:0 0 var(--space-3);color:var(--color-text-secondary);line-height:1.4}.ai-chat-thread{flex:1 1 auto;min-height:0;display:flex;flex-direction:column;gap:var(--space-3);margin-bottom:var(--space-3)}.ai-chat-msg{padding:var(--space-2);border-radius:var(--radius-sm);border:var(--border-hairline) solid var(--color-border);background:var(--color-bg-primary)}.ai-chat-msg-role{display:block;font-size:var(--font-size-11);color:var(--color-text-muted);margin-bottom:var(--space-1)}.ai-chat-msg-body{margin:0;font-size:var(--font-size-13);line-height:1.45}.ai-chat-footer{flex:0 0 auto;display:flex;flex-direction:column;gap:var(--space-2)}.ai-chat-composer-hints{display:flex;gap:var(--space-2);font-size:var(--font-size-11);color:var(--color-text-muted)}.ai-chat-hint{padding:.1em .35em;border:var(--border-hairline) solid var(--color-border);border-radius:var(--radius-sm);opacity:.7}.ai-chat-composer{width:100%;resize:vertical;min-height:4.5rem;opacity:.75;cursor:not-allowed}.ai-chat-actions{display:flex;flex-wrap:wrap;gap:var(--space-2)}.ai-chat-actions button{opacity:.65;cursor:not-allowed}.controls{display:flex;gap:var(--space-2);margin-bottom:var(--space-3)}.button-like,button{border:var(--border-hairline) solid var(--color-border);border-radius:var(--radius-sm);background:var(--color-bg-primary);color:var(--color-text-primary);padding:var(--space-2) var(--space-3);cursor:pointer}.button-like:hover,button:hover{background:var(--color-bg-tertiary)}.button-like:active,.tree-select.active,button:active{background:var(--color-bg-tertiary);border-color:var(--color-accent)}input{border:var(--border-hairline) solid var(--color-border);border-radius:var(--radius-sm);background:var(--color-bg-primary);color:var(--color-text-primary);padding:var(--space-2) var(--space-3)}ul{margin:var(--space-1) 0 var(--space-1) var(--space-4);padding:0}#tree-root .req-tree,#tree-root .req-tree ul{list-style:none;margin:0;padding:0}#tree-root .req-tree li>ul{padding-left:var(--space-3);margin:0}.tree-row{display:block;margin:var(--space-1) 0}.tree-select{align-items:baseline}.tree-row-btn,.tree-select{display:inline-flex;gap:var(--space-2);background:transparent}.tree-row-btn{align-items:center;width:100%;border:none;border-radius:var(--radius-sm);padding:var(--space-1) var(--space-2)}.tree-row-btn:hover{background:var(--color-bg-tertiary)}.tree-row-btn.active,.tree-row-btn:active{background:var(--color-bg-tertiary);outline:var(--border-hairline) solid var(--color-accent)}.tree-row-btn--requirement{align-items:flex-start}.tree-icon{display:inline-block;min-width:12px;font-family:var(--font-mono);font-size:var(--font-size-12)}.tree-folder-icon,.tree-icon{color:var(--color-text-secondary)}.tree-folder-icon{display:inline-flex;flex-shrink:0;align-items:center;justify-content:center;width:1rem;height:1rem}.tree-folder-icon svg{display:block;width:100%;height:100%}.tree-req-file-icon{display:inline-flex;flex-shrink:0;align-items:center;justify-content:center;width:13px;height:13px}.tree-req-file-icon svg{display:block}.tree-req-error-dot{display:inline-block;flex-shrink:0;width:6px;height:6px;border-radius:999px;background:rgb(220,38,38)}.chip{display:inline-flex;align-items:center;gap:var(--space-2);border:var(--border-hairline) solid var(--color-border);border-radius:var(--radius-sm);padding:var(--space-1) var(--space-2);margin:var(--space-1) var(--space-1) 0 0;background:var(--color-bg-secondary)}.mono,.req-id{font-family:var(--font-mono)}.req-id{font-size:var(--font-size-12);color:var(--color-text-secondary);white-space:nowrap;flex:0 0 auto;overflow:visible;text-overflow:clip}.req-id,.req-title{font-weight:var(--font-weight-regular)}.req-title{font-size:var(--font-size-15)}.meta{color:var(--color-text-muted);font-size:var(--font-size-12)}.section{margin-top:var(--space-4)}.section h3{margin:0 0 var(--space-2) 0;font-size:var(--font-size-13);font-weight:var(--font-weight-medium)}.detail-report .requirement-detail{margin:0;padding:0;border:none}.detail-report h2{margin:0;font-size:var(--font-size-15);font-weight:var(--font-weight-medium)}.detail-report .meta,.detail-report .source{color:var(--color-text-muted);font-size:var(--font-size-12)}.detail-report .label{font-weight:var(--font-weight-medium);color:var(--color-text-secondary)}.detail-report .labeled-block{margin-top:var(--space-3)}.detail-report .labeled-block .label{display:block;margin-bottom:var(--space-1);font-size:var(--font-size-12)}.detail-report .description p,.detail-report .rationale p{margin:.4em 0}.detail-report .description p:first-child,.detail-report .rationale p:first-child{margin-top:0}.detail-report .description p:last-child,.detail-report .rationale p:last-child{margin-bottom:0}.detail-report .linked-from-list,.detail-report .satisfies-list{margin:var(--space-1) 0 0 var(--space-4);padding:0}.detail-report .param-value{background:var(--color-bg-tertiary);border:var(--border-hairline) solid var(--color-border);border-radius:var(--radius-sm);padding:.1em .3em;font-weight:var(--font-weight-medium)}.detail-report .parameters-table{margin:var(--space-1) 0 0 0;border-collapse:collapse;width:100%;max-width:30rem}.detail-report .parameters-table td,.detail-report .parameters-table th{padding:var(--space-1) var(--space-2);text-align:left;border:var(--border-hairline) solid var(--color-border)}.detail-report .parameters-table th{font-weight:var(--font-weight-medium);color:var(--color-text-secondary);background:var(--color-bg-secondary)}.auth-gate{max-width:32rem;margin:var(--space-8) auto;padding:var(--space-6)}.auth-gate-title{font-size:var(--font-size-15);font-weight:var(--font-weight-medium);margin:0 0 var(--space-4)}.auth-gate-link,.status-user a{color:var(--color-accent)}.status-user a{margin-left:var(--space-2)}