:root{--bg:#f6f4ee;--surface:#ffffff;--surface2:#eeeae0;--ink:#201e1a;--muted:#6e6a5f;--line:#e1dbcc;--rose:#8c3b4c;--rose-soft:#f1dee0;--leaf:#33513f;--leaf-soft:#e2e7dc;--error:#b3261e}*{box-sizing:border-box}body,html{margin:0;padding:0;background:var(--bg);color:var(--ink);font-family:-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif}a{color:inherit}.page{max-width:480px;margin:0 auto;min-height:100vh;display:flex;flex-direction:column;padding:0 20px 24px}.topbar{display:flex;align-items:center;justify-content:space-between;padding:18px 0 8px}.brand{color:var(--rose);font-size:22px;font-weight:700}h1{font-size:26px;margin:12px 0 4px}.muted{color:var(--muted);font-size:14px;line-height:1.5}.card{background:var(--surface2);border-radius:16px;padding:16px;margin-bottom:12px}.card.white{background:var(--surface);border:1px solid var(--line)}.btn{display:block;width:100%;padding:14px;border-radius:14px;border:none;background:var(--rose);color:white;font-size:16px;font-weight:600;cursor:pointer;text-align:center}.btn:disabled{opacity:.5;cursor:default}.btn.leaf{background:var(--leaf)}.btn.ghost{background:var(--surface);color:var(--ink);border:1px solid var(--line)}.chip-row{display:flex;gap:8px;flex-wrap:wrap}.chip{padding:10px 16px;border-radius:999px;border:1px solid var(--line);background:var(--surface);cursor:pointer;font-size:14px}.chip.selected{background:var(--rose-soft);border-color:var(--rose);font-weight:600}input[type=date]{width:100%;padding:14px;border-radius:14px;border:1px solid var(--line);font-size:15px}.tabs,input[type=date]{background:var(--surface)}.tabs{display:flex;border-top:1px solid var(--line);position:-webkit-sticky;position:sticky;bottom:0;margin:0 -20px}.tab{flex:1 1;text-align:center;padding:12px 0 16px;color:var(--muted);cursor:pointer;font-size:13px;background:none;border:none}.tab.active{color:var(--rose);font-weight:600}.tree-tile{display:flex;align-items:center;gap:12px;padding:14px;border-radius:16px;border:2px solid transparent;background:var(--surface);cursor:pointer;margin-bottom:10px}.tree-tile.selected{border-color:var(--rose);background:var(--rose-soft)}.person-row{display:flex;align-items:center;gap:12px;padding:14px;border-radius:16px;background:var(--surface);border:1px solid var(--line);margin-bottom:10px}.person-info{flex:1 1}.person-name{font-weight:600}.person-code{color:var(--muted);font-size:13px}.row-actions{display:flex;gap:8px}.row-actions .btn{width:auto;padding:8px 14px;font-size:13px}.banner{padding:12px 14px;border-radius:12px;background:#fff4e5;color:#7a4a00;font-size:13px;margin-bottom:10px}.banner.error{background:#fdecea;color:var(--error)}.chat-msg{max-width:78%;padding:10px 14px;border-radius:16px;margin-bottom:8px;font-size:14px;line-height:1.4}.chat-msg.mine{background:var(--rose);color:white;margin-left:auto}.chat-msg.theirs{background:var(--surface);border:1px solid var(--line)}.chat-input-row{display:flex;gap:8px;padding:10px 0;border-top:1px solid var(--line);position:-webkit-sticky;position:sticky;bottom:0;background:var(--bg)}.chat-input-row input{flex:1 1;padding:12px 14px;border-radius:14px;border:1px solid var(--line);font-size:14px}