:root{--bg: #f4f5ef;--ink: #1f2320;--ink-muted: #455049;--card: #ffffff;--accent: #126a44;--accent-ink: #f4fff7;--line: #d8ddd3;--focus: #2563eb;--focus-ring: #2563eb;--danger: #b91c1c;--warning: #d97706;--success: #16a34a}*{box-sizing:border-box}body{margin:0;font-family:IBM Plex Sans,Segoe UI,Tahoma,sans-serif;color:var(--ink);background:var(--bg);overflow:hidden}.tree-row{display:flex;align-items:flex-start;gap:8px;position:relative;padding-left:12px}.tree-row--focused{background:#2563eb0f;border-radius:6px}.tree-row--child{padding-left:28px;margin-top:4px}.tree-row__connector{position:absolute;left:0;top:0;bottom:0;width:1px;background:var(--line)}.tree-row__connector-branch{position:absolute;left:0;top:14px;width:12px;height:1px;background:var(--line)}.tree-row__statement{flex:1;min-width:0;padding:6px 10px;border:1px solid var(--line);border-radius:6px;font-family:inherit;font-size:.93rem;line-height:1.45;resize:none;background:var(--card);color:var(--ink);outline:none;transition:border-color .12s,box-shadow .12s}.tree-row__statement:focus{border-color:var(--focus);box-shadow:0 0 0 2px #2563eb26}.tree-row__actions{display:flex;gap:2px;align-items:center;opacity:0;transition:opacity .12s}.tree-row:hover .tree-row__actions,.tree-row--focused .tree-row__actions{opacity:1}.tree-row__btn{width:22px;height:22px;display:flex;align-items:center;justify-content:center;background:transparent;border:1px solid var(--line);border-radius:4px;font-size:.75rem;color:var(--ink-muted);cursor:pointer;padding:0;line-height:1}.tree-row__btn:hover{background:var(--bg);color:var(--ink)}.tree-row__btn:focus-visible{outline:2px solid var(--focus);outline-offset:1px}.evidence-list{display:flex;flex-wrap:wrap;gap:4px;margin-top:4px;padding-left:0}.evidence-pill{background:#e8edea;color:var(--ink-muted);font-size:.78rem;padding:2px 8px;border-radius:999px;border:0;cursor:default}.builder{display:grid;grid-template-columns:55% 45%;grid-template-rows:auto 1fr;height:100vh;overflow:hidden}.builder-header{grid-column:1 / -1;background:var(--card);border-bottom:1px solid var(--line);padding:12px 20px;display:flex;gap:24px;align-items:center;flex-wrap:wrap}.builder-header__field{flex:1;min-width:240px}.builder-header__label{display:block;font-size:.72rem;font-weight:600;text-transform:uppercase;letter-spacing:.06em;color:var(--ink-muted);margin-bottom:4px}.builder-header__input{width:100%;padding:8px 12px;border:1px solid var(--line);border-radius:6px;font-family:inherit;font-size:.92rem;background:var(--card);color:var(--ink);outline:none}.builder-header__input:focus{border-color:var(--focus);box-shadow:0 0 0 2px #2563eb26}.builder-left{background:var(--bg);overflow-y:auto;padding:20px 24px 48px;position:relative}.builder-right{background:var(--card);border-left:1px solid var(--line);overflow-y:auto;padding:20px 24px 48px}.quality-bar{display:flex;gap:8px;flex-wrap:wrap;padding:10px 16px;background:var(--card);border-bottom:1px solid var(--line)}.quality-badge{padding:4px 10px;border-radius:999px;font-size:.78rem;font-weight:600;display:inline-flex;align-items:center;gap:4px;white-space:nowrap}.quality-badge--green{background:#e6f4ea;color:#1b5e20}.quality-badge--yellow{background:#fff8e1;color:#7f6000}.quality-badge--red{background:#fce8e6;color:#9e2a2b}.memo-preview{font-family:IBM Plex Sans,sans-serif;line-height:1.65;max-width:600px;margin:0 auto}.memo-preview h2{font-size:1.1rem;margin:0 0 12px;border-bottom:1px solid var(--line);padding-bottom:6px}.memo-preview hr{border:0;border-top:1px solid var(--line);margin:16px 0}.loading,.error,.empty{display:flex;align-items:center;justify-content:center;height:100%;color:var(--ink-muted);font-size:.95rem}.error{color:var(--danger)}@media(max-width:860px){.builder{grid-template-columns:1fr;grid-template-rows:auto auto 1fr}.builder-right{border-left:none;border-top:1px solid var(--line)}}@media(max-width:640px){.builder-header{gap:12px}.builder-left,.builder-right{padding:14px 12px 40px}}