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:root{--appgen-bg:#0a0a0f;--appgen-bg-elevated:#12121a;--appgen-bg-card:#ffffff0d;--appgen-bg-card-hover:#ffffff14;--appgen-border:#ffffff14;--appgen-border-strong:#ffffff1f;--appgen-text:#f4f4f5;--appgen-text-muted:#a1a1aa;--appgen-text-dim:#71717a;--appgen-accent:#06b6d4;--appgen-accent-hover:#22d3ee;--appgen-accent-glow:#06b6d459;--appgen-violet:#8b5cf6;--appgen-violet-glow:#8b5cf640;--appgen-gradient:linear-gradient(135deg,#06b6d4 0%,#8b5cf6 100%);--appgen-gradient-soft:linear-gradient(180deg,#06b6d41f 0%,#8b5cf614 100%);--appgen-font-heading:var(--font-syne),sans-serif;--appgen-font-body:var(--font-outfit),-apple-system,BlinkMacSystemFont,sans-serif;--appgen-radius:16px;--appgen-radius-lg:24px;--appgen-shadow:0 4px 24px #00000040;--appgen-shadow-glow:0 0 40px 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p{color:var(--appgen-text-muted);line-height:1.6}.modal-warning{color:#fca5a5!important}.btn-danger{color:#fff;background:#ef4444e6;box-shadow:0 2px 12px #ef44444d}.btn-danger:hover{background:#dc2626;box-shadow:0 4px 16px #ef444466}.chat-create-branch-modal{background:var(--appgen-bg-card)!important;border:1px solid var(--appgen-border)!important;border-radius:var(--appgen-radius)!important;box-shadow:var(--appgen-shadow)!important;color:var(--appgen-text)!important}.chat-create-branch-modal h3,.chat-create-branch-modal label{color:var(--appgen-text)!important}.chat-create-branch-modal input,.chat-create-branch-modal select{background:var(--appgen-bg)!important;border:1px solid var(--appgen-border)!important;color:var(--appgen-text)!important;border-radius:8px!important}@keyframes modalSlideIn{0%{opacity:0;transform:translateY(-20px)scale(.95)}to{opacity:1;transform:translateY(0)scale(1)}}.modal 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p{color:var(--appgen-text-muted);margin-bottom:0;font-size:1rem;line-height:1.6}.section-title{font-family:var(--appgen-font-heading);color:var(--appgen-text);letter-spacing:-.02em;font-size:1.5rem;font-weight:700}.app-card-icon{border-radius:14px;flex-shrink:0;justify-content:center;align-items:center;width:52px;height:52px;font-size:1.5rem;display:flex}.dev-only-card{text-align:center;background:var(--appgen-bg-card);border:1px solid var(--appgen-border);border-radius:var(--appgen-radius-lg);margin-bottom:2rem;padding:2.5rem 2rem;position:relative;overflow:hidden}.dev-only-card:before{content:"";background:var(--appgen-gradient-soft);pointer-events:none;position:absolute;inset:0}.dev-only-icon{filter:drop-shadow(0 2px 8px 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1.25rem;font-size:.95rem}.chat-page-container{background:var(--appgen-bg);flex-direction:column;gap:1rem;height:100vh;min-height:100vh;padding:1rem;display:flex;overflow:hidden}.chat-page-loading{background:var(--appgen-bg);justify-content:center;align-items:center;min-height:100vh;display:flex}.chat-page-error{text-align:center;flex-direction:column;justify-content:center;align-items:center;min-height:100vh;padding:2rem;display:flex}.chat-page-error .chat-page-error-card{background:var(--appgen-bg-card);color:var(--appgen-text);border-radius:var(--appgen-radius);box-shadow:var(--appgen-shadow);border:1px solid var(--appgen-border);max-width:420px;padding:2rem 2.5rem}.chat-page-error h2{color:#fca5a5;margin:0 0 1rem;font-size:1.35rem;font-weight:600}.chat-page-error p{color:var(--appgen-text-muted);margin:0 0 1.5rem;font-size:1rem;line-height:1.5}.repo-diff-panel{background:var(--appgen-bg-card);border-radius:var(--appgen-radius);min-width:320px;height:100%;box-shadow:var(--appgen-shadow);border:1px solid var(--appgen-border);flex-direction:column;display:flex;overflow:hidden}.repo-diff-tabs{border-bottom:1px solid var(--appgen-border);background:var(--appgen-bg-elevated);display:flex}.repo-diff-tabs button{cursor:pointer;color:var(--appgen-text-muted);background:0 0;border:none;padding:10px 16px;font-size:14px}.repo-diff-tabs button.repo-diff-tab-active{background:var(--appgen-bg-card);color:var(--appgen-accent);border-bottom:2px solid var(--appgen-accent);font-weight:600}.repo-diff-content{flex-direction:row;flex:1;min-height:0;display:flex;overflow:hidden}.repo-diff-content .repo-files-sidebar{border-right:1px solid var(--appgen-border);background:var(--appgen-bg-elevated);flex-direction:column;flex-shrink:0;width:220px;min-width:180px;display:flex;overflow:hidden}.repo-diff-content .repo-files-sidebar .repo-tree-title{text-transform:uppercase;letter-spacing:.04em;color:var(--appgen-text-muted);border-bottom:1px solid var(--appgen-border);background:var(--appgen-bg-card);padding:10px 12px;font-size:11px;font-weight:600}.repo-diff-content .repo-files-sidebar .repo-tree{flex:1;margin-bottom:0;padding:8px 0;overflow:auto}.repo-diff-content .repo-editor-main{background:var(--appgen-bg);flex-direction:column;flex:1;min-width:0;min-height:0;display:flex}.repo-diff-content .repo-editor-main .repo-editor-toolbar{border-bottom:1px solid var(--appgen-border);background:var(--appgen-bg-elevated);flex-wrap:wrap;flex-shrink:0;justify-content:space-between;align-items:center;gap:8px;padding:8px 12px;display:flex}.repo-diff-content .repo-editor-main .repo-editor-toolbar .repo-editor-path{color:var(--appgen-text);margin:0;font-family:ui-monospace,monospace;font-size:12px}.repo-diff-content .repo-editor-main .repo-monaco-wrap{border:none;border-top:1px solid var(--appgen-border);border-radius:0;flex:1;min-height:240px}.repo-editor-empty{color:var(--appgen-text-dim);text-align:center;flex:1;justify-content:center;align-items:center;padding:24px;font-size:13px;display:flex}.repo-diff-loading,.repo-diff-error{color:var(--appgen-text-muted);padding:12px;font-size:13px}.repo-diff-error{color:#fca5a5}.repo-tree{margin-bottom:12px}.repo-file-editor{border-top:1px solid var(--appgen-border);flex-direction:column;min-height:240px;margin-top:12px;padding-top:12px;display:flex}.repo-editor-toolbar{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:8px;margin-bottom:8px;display:flex}.repo-editor-toolbar .repo-editor-path{text-overflow:ellipsis;white-space:nowrap;min-width:0;color:var(--appgen-text-muted);flex:1;margin-bottom:0;overflow:hidden}.repo-editor-actions{align-items:center;gap:8px;display:flex}.repo-save-btn{color:#fff;cursor:pointer;background:#059669;border:none;border-radius:8px;padding:6px 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.repo-tree-branch{color:var(--appgen-text-muted);margin-left:6px;font-size:.9em;font-weight:500}.repo-editor-path{color:var(--appgen-text-muted);margin-bottom:6px;font-size:12px}.repo-monaco-loading{color:var(--appgen-text-muted);padding:12px;font-size:13px}.repo-monaco-wrap{border:1px solid var(--appgen-border);border-radius:8px;flex:1;min-height:280px;overflow:hidden}.repo-file-editor .repo-monaco-wrap{height:320px}.repo-diff-empty{color:var(--appgen-text-muted);padding:8px 0;font-size:13px}.repo-tree-source{color:var(--appgen-text-dim);border-bottom:1px solid var(--appgen-border);padding:2px 12px 6px;font-size:10px}.repo-changes-tab{flex-direction:column;flex:1;min-height:0;padding:0;display:flex}.repo-changes-with-sidebar{flex:1;min-height:0;display:flex;overflow:hidden}.repo-changes-with-sidebar .repo-changes-sidebar{border-right:1px solid var(--appgen-border);background:var(--appgen-bg-elevated);flex:0 0 200px;min-width:0;padding:10px;overflow-y:auto}.repo-changes-with-sidebar .repo-changes-main{flex:1;min-width:0;padding:10px;overflow:auto}.repo-changes-diff-wrap{flex-direction:column;flex:1;min-height:0;display:flex}.repo-changes-caption{color:var(--appgen-text-muted);margin-bottom:8px;font-size:11px}.repo-diff-file-select{align-items:center;gap:8px;margin-bottom:10px;font-size:12px;display:flex}.repo-diff-file-select label{color:var(--appgen-text-muted)}.repo-diff-file-select select{border:1px solid var(--appgen-border);background:var(--appgen-bg-card);min-width:0;color:var(--appgen-text);border-radius:6px;flex:1;padding:6px 8px;font-size:12px}.repo-diff-side-by-side{background:#1e1e1e;border:1px solid #333;border-radius:6px;flex:1;gap:0;min-height:320px;display:flex;overflow:hidden}.repo-diff-pane{border-right:1px solid #444;flex-direction:column;flex:1;min-width:0;display:flex;overflow:hidden}.repo-diff-pane:last-child{border-right:none}.repo-diff-pane-title{color:#888;background:#252526;border-bottom:1px solid #333;padding:6px 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