:root{--bg: #f6f7f9;--surface: #ffffff;--border: #d9dde3;--text: #1f2430;--muted: #6b7280;--accent: #3858e9;--danger: #c0392b;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text)}button{font:inherit;padding:.45rem .85rem;border:1px solid var(--border);border-radius:6px;background:var(--surface);cursor:pointer}button:hover{border-color:var(--accent)}button:disabled{opacity:.55;cursor:default}button.danger{color:var(--danger);border-color:var(--danger)}input{font:inherit;padding:.45rem .6rem;border:1px solid var(--border);border-radius:6px;background:var(--surface)}.page-center{min-height:100vh;display:grid;place-items:center;padding:2rem}.app-nav{display:flex;align-items:center;gap:.75rem;padding:.6rem 1rem;background:var(--surface);border-bottom:1px solid var(--border)}.app-nav .brand{font-weight:600;text-decoration:none;color:var(--text)}.app-nav .spacer{flex:1}.app-nav .user-name,.muted{color:var(--muted)}.auth-card{display:flex;flex-direction:column;gap:.9rem;width:320px;padding:1.75rem;background:var(--surface);border:1px solid var(--border);border-radius:10px}.auth-card h1{margin:0 0 .25rem;font-size:1.3rem}.auth-card label{display:flex;flex-direction:column;gap:.3rem;font-size:.85rem;color:var(--muted)}.auth-card input{width:100%}.auth-alt{font-size:.85rem;color:var(--muted);text-align:center;margin:0}.form-error{color:var(--danger);font-size:.85rem;margin:0}.tree-list-body{max-width:720px;margin:0 auto;padding:1.5rem 1rem}.new-tree{display:flex;gap:.5rem;margin:1rem 0 1.5rem}.new-tree input{flex:1}.tree-cards{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:.6rem}.tree-card{display:flex;align-items:center;gap:.75rem;padding:.85rem 1rem;background:var(--surface);border:1px solid var(--border);border-radius:8px}.tree-card-name{flex:1;font-weight:500;text-decoration:none;color:var(--text)}.tree-card-actions{display:flex;gap:.4rem}.app-layout{height:100vh;display:flex;flex-direction:column;overflow:hidden}.tree-page{flex:1;display:flex;flex-direction:column;overflow:hidden}.tree-main{flex:1;display:flex;flex-direction:row;overflow:hidden;position:relative}.canvas-wrap{flex:1;position:relative;display:flex;overflow:hidden}.canvas-status{margin:auto;color:var(--muted)}.top-nav{display:flex;align-items:center;justify-content:space-between;padding:0 20px;height:52px;background:var(--surface);border-bottom:1px solid var(--border);flex-shrink:0}.nav-left{display:flex;align-items:center;gap:8px}.nav-brand{font-size:1.1rem;font-weight:700;color:#2d3748;text-decoration:none}.nav-separator{color:#cbd5e0;font-size:1.2rem}.nav-tree-name{font-size:.95rem;color:#4a5568;font-weight:500}.nav-right{display:flex;align-items:center;gap:16px}.nav-user{font-size:.9rem;color:var(--muted)}.nav-version{font-size:.75rem;color:var(--muted);font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;opacity:.7;text-decoration:none}.nav-version:hover{opacity:1;text-decoration:underline}.version-page{max-width:640px;margin:60px auto;padding:0 20px;font-size:.95rem}.version-page h1{margin-bottom:24px}.version-page h2{font-size:1rem;text-transform:uppercase;letter-spacing:.05em;color:var(--muted);margin:24px 0 8px}.version-page dl{display:grid;grid-template-columns:110px 1fr;gap:6px 16px;margin:0}.version-page dt{color:var(--muted)}.version-page dd{margin:0;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}.version-back{margin-top:32px}.toolbar{display:flex;align-items:center;gap:12px;padding:8px 16px;background:var(--surface);border-bottom:1px solid var(--border);flex-shrink:0}.toolbar-spacer{flex:1}.toolbar-view{display:flex;align-items:center;gap:6px;font-size:.82rem;color:var(--muted)}.toolbar-view select{font:inherit;padding:.3rem .4rem;border:1px solid var(--border);border-radius:6px;background:var(--surface)}.toolbar-error{color:var(--danger);font-size:.8rem}.btn-primary{background:#4a90d9;color:#fff;font-weight:600;border-color:#4a90d9}.btn-primary:hover{background:#2563eb;border-color:#2563eb}.btn-ghost{background:transparent;color:#4a5568}.btn-ghost:hover{background:#f7fafc}.btn-ghost.active{background:#ebf4ff;color:#2563eb;border-color:#93c5fd}.btn-danger{background:#fc8181;color:#fff;border-color:#fc8181}.btn-danger:hover{background:#e53e3e;border-color:#e53e3e}.btn-icon{padding:6px 12px;font-size:1.05rem;line-height:1}.btn-sm{padding:.25rem .6rem;font-size:.8rem}.tree-canvas{flex:1;display:block;background:#f5f7fa;-webkit-user-select:none;user-select:none;background-image:radial-gradient(circle,rgba(0,0,0,.08) 1px,transparent 1px);background-size:28px 28px}.person-node rect{filter:drop-shadow(0 2px 4px rgba(0,0,0,.1))}.timeline-labels text,.timeline-labels line{pointer-events:none}.empty-hint{fill:#a0aec0;font-size:16px;pointer-events:none}.canvas-controls{position:absolute;bottom:14px;left:14px;display:flex;gap:4px;z-index:5}.legend{position:absolute;top:12px;left:12px;background:#ffffffeb;border:1px solid var(--border);border-radius:6px;padding:8px 10px;font-size:11px;color:#334155;pointer-events:none;z-index:5}.legend-title{font-weight:600;margin-bottom:4px;color:#1a1a1a}.legend ul{list-style:none;margin:0;padding:0}.legend li{display:flex;align-items:center;gap:6px;line-height:1.5}.legend .sw{display:inline-block;width:16px;height:10px;border-radius:2px;flex-shrink:0}.sw-selected{background:#4a90d9;border:1px solid #2563eb}.sw-family-origin{background:#ecfdf5;border:1px solid #10b981}.sw-family-married{background:#faf5ff;border:1px solid #a855f7}.sw-related{background:#fff7ed;border:1px solid #fb923c}.sw-default{background:#fff;border:1px solid #cbd5e0}.side-panel{width:320px;min-width:260px;background:var(--surface);border-left:1px solid var(--border);overflow-y:auto;flex-shrink:0}.loading{color:var(--muted)}.error{color:var(--danger);font-size:.85rem;background:#fff5f5;border:1px solid #fc8181;border-radius:6px;padding:8px 12px;margin:8px 0 0}.field{display:flex;flex-direction:column;gap:4px;flex:1}.field label{font-size:.85rem;font-weight:500;color:#4a5568}.field label .hint{font-weight:400;font-size:11px;color:#94a3b8}.field input,.field select,.field textarea{font:inherit;border:1px solid var(--border);border-radius:6px;padding:8px 10px;width:100%;background:var(--surface)}.field textarea{resize:vertical}.field-row{display:flex;gap:12px}.modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;background:#0006;display:flex;align-items:center;justify-content:center;z-index:100}.modal{background:var(--surface);border-radius:12px;padding:28px;width:480px;max-width:95vw;max-height:92vh;overflow-y:auto}.modal h2{font-size:1.2rem;margin:0 0 20px;color:#2d3748}.modal form{display:flex;flex-direction:column;gap:14px}.modal-actions{display:flex;gap:8px;margin-top:4px;flex-wrap:wrap}.rel-panel{padding:20px 16px}.rel-panel h3{font-size:1rem;font-weight:700;color:#2d3748;margin:0 0 16px;padding-bottom:12px;border-bottom:1px solid var(--border)}.rel-section{margin-bottom:18px}.rel-section h4{font-size:.78rem;font-weight:600;text-transform:uppercase;letter-spacing:.05em;color:#718096;margin:0 0 8px}.rel-section form{display:flex;flex-direction:column;gap:10px}.rel-item{display:flex;align-items:center;justify-content:space-between;padding:6px 8px;background:#f7fafc;border-radius:6px;font-size:.9rem;margin-bottom:4px}.changelog-panel,.share-panel{padding:16px}.changelog-panel h3,.share-panel h3{font-size:1rem;font-weight:600;margin:0 0 12px;color:#2d3748}.changelog-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px}.changelog-entry{background:#f8fafc;border:1px solid var(--border);border-radius:8px;padding:10px 12px}.cl-meta{display:flex;align-items:center;gap:8px;margin-bottom:6px}.cl-action{font-size:.72rem;font-weight:700;padding:2px 7px;border-radius:12px;white-space:nowrap}.cl-create{background:#d1fae5;color:#065f46}.cl-update{background:#dbeafe;color:#1e40af}.cl-delete{background:#fee2e2;color:#991b1b}.cl-desc{font-size:.86rem;color:#4a5568;flex:1}.cl-footer{display:flex;align-items:center;gap:8px;font-size:.78rem;color:#a0aec0}.cl-actor{font-weight:500;color:#718096}.cl-ts{flex:1;font-family:monospace}.share-panel h4{font-size:.82rem;font-weight:600;color:#718096;margin:14px 0 8px;text-transform:uppercase;letter-spacing:.04em}.members-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:6px}.member-item{display:flex;align-items:center;gap:8px;padding:8px 10px;background:#f8fafc;border-radius:6px;border:1px solid var(--border)}.member-name{flex:1;font-size:.9rem;color:#2d3748}.member-role{font-size:.72rem;font-weight:600;padding:2px 8px;border-radius:12px}.role-owner{background:#fef3c7;color:#92400e}.role-editor{background:#dbeafe;color:#1e40af}.role-viewer{background:#f0fdf4;color:#166534}.share-form{display:flex;gap:8px;align-items:center;flex-wrap:wrap}.share-form input{flex:1;min-width:150px}.share-form select{font:inherit;padding:.45rem .6rem;border:1px solid var(--border);border-radius:6px;background:var(--surface)}