:root{--color-bg: #f5f6f8;--color-surface: #ffffff;--color-border: #e2e5ea;--color-text: #1a1d23;--color-text-muted: #6b7280;--color-primary: #2f5fd6;--color-primary-hover: #2447ab;--color-danger: #d92d20;--color-success: #12805c;--radius: 8px;--shadow-sm: 0 1px 2px rgba(16, 24, 40, .06);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif}*{box-sizing:border-box}body{margin:0;background:var(--color-bg);color:var(--color-text)}button,input,select{font-family:inherit;font-size:14px}a{color:var(--color-primary)}.app-shell{display:flex;flex-direction:column;min-height:100vh}.navbar{display:flex;align-items:center;justify-content:space-between;padding:0 20px;height:56px;background:var(--color-surface);border-bottom:1px solid var(--color-border)}.navbar-links{display:flex;gap:16px;align-items:center}.navbar-links a{text-decoration:none;color:var(--color-text);font-weight:500;padding:6px 4px}.navbar-links a.active{color:var(--color-primary)}.app-body{display:flex;flex:1;min-height:0}.sidebar{flex:0 0 auto;background:var(--color-surface);border-right:1px solid var(--color-border);overflow-y:auto;overflow-x:hidden;padding:12px 8px}.sidebar-resize-handle{flex:0 0 auto;width:5px;margin:0 -2px;cursor:col-resize;background:transparent;position:relative;z-index:1}.sidebar-resize-handle:hover,.sidebar-resize-handle:active{background:var(--color-primary);opacity:.5}.main-content{flex:1;min-width:0;padding:24px 32px;overflow-y:auto}.tree-node{display:flex;align-items:center;gap:4px;padding:4px 6px;border-radius:6px;cursor:pointer;font-size:13px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.tree-node:hover{background:var(--color-bg)}.tree-node.selected{background:#e8edfc;color:var(--color-primary);font-weight:600}.tree-node.drop-target,.item-card.drop-target{outline:2px dashed var(--color-primary);outline-offset:-2px;background:#e8edfc}.item-card[draggable=true]{cursor:grab}.badge{display:inline-block;font-size:11px;padding:1px 6px;border-radius:999px;background:var(--color-bg);color:var(--color-text-muted);border:1px solid var(--color-border)}.card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius);box-shadow:var(--shadow-sm);padding:16px}.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:12px}.item-card{display:flex;flex-direction:column;gap:6px;padding:14px;border:1px solid var(--color-border);border-radius:var(--radius);background:var(--color-surface);cursor:pointer;text-decoration:none;color:inherit}.item-card:hover{border-color:var(--color-primary)}.breadcrumb{display:flex;gap:6px;align-items:center;color:var(--color-text-muted);font-size:13px;margin-bottom:16px;flex-wrap:wrap}.breadcrumb a{color:var(--color-text-muted);text-decoration:none}.breadcrumb a:hover{text-decoration:underline}.btn{display:inline-flex;align-items:center;gap:6px;border:1px solid var(--color-border);background:var(--color-surface);color:var(--color-text);padding:8px 14px;border-radius:6px;cursor:pointer;font-weight:500}.btn:hover{border-color:var(--color-primary)}.btn-primary{background:var(--color-primary);border-color:var(--color-primary);color:#fff}.btn-primary:hover{background:var(--color-primary-hover)}.btn-danger{color:var(--color-danger);border-color:var(--color-danger)}.btn:disabled{opacity:.5;cursor:not-allowed}.toolbar{display:flex;gap:8px;align-items:center;margin-bottom:16px;flex-wrap:wrap}.form-field{display:flex;flex-direction:column;gap:4px;margin-bottom:14px}.form-field label{font-size:13px;font-weight:500;color:var(--color-text-muted)}.form-field input,.form-field select{padding:8px 10px;border:1px solid var(--color-border);border-radius:6px;background:var(--color-surface);color:var(--color-text)}.error-text{color:var(--color-danger);font-size:13px}.success-text{color:var(--color-success);font-size:13px}.login-screen{min-height:100vh;display:flex;align-items:center;justify-content:center;background:var(--color-bg)}.login-card{width:360px;padding:32px}.login-divider{display:flex;align-items:center;gap:10px;color:var(--color-text-muted);font-size:12px;margin:16px 0}.login-divider:before,.login-divider:after{content:"";flex:1;height:1px;background:var(--color-border)}table{width:100%;border-collapse:collapse;font-size:13px}th,td{text-align:left;padding:10px 12px;border-bottom:1px solid var(--color-border)}th{color:var(--color-text-muted);font-weight:600}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#0f121766;display:flex;align-items:center;justify-content:center;z-index:50}.modal{width:420px;max-height:80vh;overflow-y:auto}.modal-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px}.task-table{table-layout:fixed;border-collapse:collapse}.task-table th,.task-table td{padding:2px 6px;font-size:12px;line-height:1.3;overflow:hidden;white-space:nowrap;text-overflow:ellipsis}.task-table th{position:relative;white-space:normal}.task-table input,.task-table select{width:100%;min-width:0;box-sizing:border-box;padding:2px 4px;border:1px solid transparent;background:transparent;color:inherit;font-size:inherit;font-weight:inherit;font-style:inherit;text-decoration:inherit;font-family:inherit}.task-table input:hover,.task-table select:hover,.task-table input:focus,.task-table select:focus{border-color:var(--color-border);background:var(--color-surface)}.task-table input.date-picker-btn{width:22px;min-width:22px;flex-shrink:0;padding:0;color:transparent}.col-resize-handle{position:absolute;right:-3px;top:0;bottom:0;width:6px;cursor:col-resize;-webkit-user-select:none;user-select:none;z-index:2}.col-resize-handle:hover,.col-resize-handle:active{background:var(--color-primary);opacity:.5}.diagram-toolbar{display:flex;align-items:center;gap:10px;padding:10px 14px;flex-wrap:wrap}.diagram-name-display{flex:1 1 240px;min-width:140px;padding:6px 2px;color:var(--color-text);font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.diagram-version-select{padding:6px 8px;border:1px solid var(--color-border);border-radius:6px;background:var(--color-surface);color:var(--color-text);max-width:260px}.diagram-assignee-select{padding:6px 8px;border:1px solid var(--color-border);border-radius:6px;background:var(--color-surface);color:var(--color-text);max-width:160px}.diagram-last-saved{font-size:12px;color:var(--color-text-muted);margin:0 0 16px}.synthesis-group-row td{background:var(--color-bg);font-weight:600;padding:6px 8px!important;border-top:1px solid var(--color-border)}.synthesis-group-row a{color:var(--color-text);text-decoration:none}.synthesis-group-row a:hover{text-decoration:underline}.synthesis-empty{color:var(--color-text-muted);font-style:italic}.icon-btn{padding:6px 10px;font-size:16px;line-height:1}.version-banner{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;background:#fff7e0;border-color:#e8c766}.gantt-handle{border-radius:50%;background:var(--color-surface);border:2px solid var(--color-primary);cursor:crosshair}.gantt-handle:hover{background:var(--color-primary)}
