.app-header{display:flex;align-items:center;justify-content:space-between;padding:0 1.5rem;height:48px;background-color:var(--bg-secondary);border-bottom:1px solid var(--border)}.app-header h1{font-size:1rem;font-weight:600;color:var(--text-primary)}.app-header h1 a{color:var(--text-primary)}.app-header h1 a:hover{color:var(--accent)}.app-content{height:calc(100% - 48px);overflow:auto}.project-list{max-width:1000px;margin:0 auto;padding:2rem}.project-list-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:1.5rem}.project-list-header h2{font-size:1.5rem;font-weight:600}.project-list-loading,.project-list-empty{text-align:center;padding:4rem 2rem;color:var(--text-secondary)}.project-list-empty p{margin-bottom:1rem}.project-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:1rem}.project-card{background:var(--bg-surface);border:1px solid var(--border);border-radius:8px;padding:1.25rem;cursor:pointer;transition:border-color .15s,background-color .15s;display:flex;flex-direction:column;justify-content:space-between}.project-card:hover{border-color:var(--accent);background:var(--bg-hover)}.project-card h3{font-size:1.1rem;font-weight:600;margin-bottom:.5rem}.project-card-meta{font-size:.85rem;color:var(--text-muted)}.project-card-actions{margin-top:1rem;display:flex;justify-content:flex-end}.btn-primary{background:var(--accent);color:var(--bg-primary);padding:.5rem 1rem;border-radius:6px;font-weight:600;font-size:.875rem;transition:background .15s}.btn-primary:hover{background:var(--accent-hover)}.btn-primary:disabled{opacity:.5;cursor:not-allowed}.btn-secondary{background:var(--bg-surface);color:var(--text-primary);padding:.5rem 1rem;border-radius:6px;font-weight:500;font-size:.875rem;border:1px solid var(--border);transition:background .15s}.btn-secondary:hover{background:var(--bg-hover)}.btn-danger{background:transparent;color:var(--error);padding:.35rem .75rem;border-radius:6px;font-weight:500;font-size:.8rem;border:1px solid var(--error);transition:background .15s}.btn-danger:hover{background:var(--error);color:var(--bg-primary)}.dialog-overlay{position:fixed;inset:0;background:#0009;display:flex;align-items:center;justify-content:center;z-index:100}.dialog{background:var(--bg-surface);border:1px solid var(--border);border-radius:12px;padding:1.5rem;width:400px;max-width:90vw}.dialog h3{font-size:1.25rem;margin-bottom:1rem}.form-group{margin-bottom:1rem}.form-group label{display:block;font-size:.875rem;color:var(--text-secondary);margin-bottom:.35rem}.form-group input,.form-group select{width:100%;padding:.5rem .75rem;background:var(--bg-primary);border:1px solid var(--border);border-radius:6px;font-size:.9rem}.form-group input:focus,.form-group select:focus{outline:none;border-color:var(--accent)}.dialog-actions{display:flex;justify-content:flex-end;gap:.5rem;margin-top:1.25rem}.file-tree{width:var(--sidebar-width);min-width:var(--sidebar-width);background:var(--bg-secondary);border-right:1px solid var(--border);display:flex;flex-direction:column;overflow:hidden}.file-tree-header{display:flex;align-items:center;justify-content:space-between;padding:.5rem .75rem;font-size:.8rem;font-weight:600;text-transform:uppercase;color:var(--text-muted);border-bottom:1px solid var(--border)}.file-tree-actions{display:flex;gap:.25rem}.file-tree-actions button{font-size:.8rem;padding:.15rem .4rem;border-radius:4px;color:var(--text-secondary)}.file-tree-actions button:hover{background:var(--bg-hover);color:var(--text-primary)}.file-tree-new{padding:.25rem .5rem;border-bottom:1px solid var(--border)}.file-tree-new input{width:100%;padding:.3rem .5rem;background:var(--bg-primary);border:1px solid var(--accent);border-radius:4px;font-size:.85rem}.file-tree-content{flex:1;overflow-y:auto;padding:.25rem 0}.file-tree-node{display:flex;align-items:center;padding:.3rem .5rem;font-size:.85rem;cursor:pointer;position:relative;white-space:nowrap}.file-tree-node:hover{background:var(--bg-hover)}.file-tree-node.active{background:var(--bg-surface);color:var(--accent)}.file-tree-icon{font-family:monospace;font-size:.75rem;color:var(--text-muted);flex-shrink:0;width:16px}.file-tree-name{overflow:hidden;text-overflow:ellipsis}.file-tree-rename{flex:1;padding:.1rem .3rem;background:var(--bg-primary);border:1px solid var(--accent);border-radius:3px;font-size:.85rem}.file-tree-menu{position:absolute;right:4px;top:100%;background:var(--bg-surface);border:1px solid var(--border);border-radius:6px;overflow:hidden;z-index:50;box-shadow:0 4px 12px #0000004d}.file-tree-menu button{display:block;width:100%;padding:.4rem 1rem;text-align:left;font-size:.85rem}.file-tree-menu button:hover{background:var(--bg-hover)}.code-editor{flex:1;min-width:0;overflow:hidden;background:var(--bg-primary)}.code-editor .cm-editor{height:100%}.code-editor .cm-scroller{overflow:auto}.pdf-viewer{flex:1;min-width:0;background:var(--bg-secondary);border-left:1px solid var(--border);display:flex;flex-direction:column}.pdf-viewer iframe{flex:1;width:100%;border:none;background:#fff}.pdf-viewer-empty{align-items:center;justify-content:center;color:var(--text-muted)}.pdf-viewer-empty p{margin-bottom:.25rem}.pdf-viewer-hint{font-size:.85rem}.editor-page{display:flex;height:100%;overflow:hidden}.editor-main{flex:1;display:flex;flex-direction:column;min-width:0}.editor-toolbar{display:flex;align-items:center;justify-content:space-between;padding:.4rem .75rem;background:var(--bg-secondary);border-bottom:1px solid var(--border);gap:.75rem}.editor-toolbar-left{display:flex;align-items:center;gap:.5rem;font-size:.85rem;color:var(--text-secondary)}.editor-toolbar-file{color:var(--text-primary);font-weight:500}.save-indicator{font-size:.75rem;color:var(--text-muted)}.save-indicator.saving{color:var(--warning)}.save-indicator.saved{color:var(--success)}.compile-btn{background:var(--success);color:var(--bg-primary);padding:.35rem 1rem;border-radius:6px;font-weight:600;font-size:.85rem;transition:opacity .15s}.compile-btn:hover{opacity:.9}.compile-btn:disabled{opacity:.5;cursor:not-allowed}.editor-panels{flex:1;display:flex;min-height:0}.compile-log-container{border-top:1px solid var(--border)}.compile-log-toggle{width:100%;padding:.3rem;font-size:.75rem;color:var(--text-muted);background:var(--bg-secondary);text-align:center}.compile-log-toggle:hover{color:var(--text-primary);background:var(--bg-hover)}.compile-log{max-height:200px;overflow:auto;background:var(--bg-primary);padding:.5rem}.compile-log pre{font-family:monospace;font-size:.8rem;color:var(--text-secondary);white-space:pre-wrap;word-break:break-all}.editor-loading{display:flex;align-items:center;justify-content:center;height:100%;color:var(--text-muted)}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--bg-primary: #1e1e2e;--bg-secondary: #181825;--bg-surface: #313244;--bg-hover: #45475a;--text-primary: #cdd6f4;--text-secondary: #a6adc8;--text-muted: #6c7086;--accent: #89b4fa;--accent-hover: #74c7ec;--success: #a6e3a1;--error: #f38ba8;--warning: #fab387;--border: #45475a;--sidebar-width: 260px}html,body,#root{height:100%;width:100%;overflow:hidden}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;background-color:var(--bg-primary);color:var(--text-primary);line-height:1.5}button{cursor:pointer;font-family:inherit;border:none;background:none;color:inherit}input{font-family:inherit;color:inherit}a{color:var(--accent);text-decoration:none}a:hover{color:var(--accent-hover)}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:var(--bg-secondary)}::-webkit-scrollbar-thumb{background:var(--bg-hover);border-radius:4px}::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}