:root{
  --bg:#f4f7f6;--card:#fff;--ink:#12201d;--mute:#5f726d;--line:#dde6e3;
  --brand:#0f766e;--brand-ink:#fff;--soft:#e2f2ef;--warn:#b45309;--warn-bg:#fef3c7;--bad:#b91c1c;--ok:#15803d;
}
@media (prefers-color-scheme:dark){:root{
  --bg:#0c1513;--card:#142220;--ink:#e6f1ee;--mute:#8da39d;--line:#243532;
  --brand:#2dd4bf;--brand-ink:#04211d;--soft:#15332f;--warn:#fbbf24;--warn-bg:#3a2d0b;--bad:#f87171;--ok:#4ade80;
}}
*{box-sizing:border-box}
html,body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.45 system-ui,-apple-system,Segoe UI,Roboto,sans-serif}
body{padding-bottom:calc(72px + env(safe-area-inset-bottom))}
#app{max-width:640px;margin:0 auto;padding:0 16px}
h1{font-size:1.35rem;margin:18px 0 4px}h2{font-size:1.05rem;margin:18px 0 8px}
.mute{color:var(--mute);font-size:.9rem}
.top{display:flex;align-items:center;justify-content:space-between;padding:14px 0 0}
.brand{font-weight:800;color:var(--brand);font-size:1.2rem}
.iconbtn{background:none;border:1px solid var(--line);color:var(--ink);border-radius:10px;padding:6px 10px;font-size:.9rem;cursor:pointer}
.hero{background:var(--brand);color:var(--brand-ink);border-radius:18px;padding:18px;margin:14px 0}
.hero .big{font-size:2rem;font-weight:800}
.actions{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-top:14px}
.actions button{background:rgba(255,255,255,.18);color:inherit;border:0;border-radius:12px;padding:11px 4px;font-weight:700;font-size:.95rem;cursor:pointer}
.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:14px;margin:10px 0}
.cat{display:flex;justify-content:space-between;gap:10px;align-items:flex-start}
.cat .name{font-weight:700}
.cat .amt{font-weight:800;white-space:nowrap}
.badge{display:inline-block;font-size:.72rem;padding:2px 8px;border-radius:99px;background:var(--soft);color:var(--brand);margin-left:6px;font-weight:600}
.badge.protected{background:var(--warn-bg);color:var(--warn)}
.bar{height:6px;border-radius:9px;background:var(--line);margin-top:8px;overflow:hidden}
.bar i{display:block;height:100%;background:var(--brand)}
.notice{background:var(--warn-bg);color:var(--warn);border-radius:12px;padding:10px 12px;margin:10px 0;font-size:.92rem}
.btn{background:var(--brand);color:var(--brand-ink);border:0;border-radius:12px;padding:12px 16px;font-weight:700;font-size:1rem;cursor:pointer;width:100%}
.btn.sec{background:var(--soft);color:var(--brand)}
.btn.danger{background:var(--bad);color:#fff}
.btn.small{width:auto;padding:7px 12px;font-size:.88rem}
.btn:disabled{opacity:.5}
label{display:block;font-size:.85rem;color:var(--mute);margin:12px 0 4px}
input,select,textarea{width:100%;padding:11px 12px;border:1px solid var(--line);border-radius:10px;background:var(--card);color:var(--ink);font:inherit}
input[type=radio],input[type=checkbox]{width:auto}
.row{display:flex;gap:8px;align-items:center}.row>*{flex:1}
.row .fit{flex:none}
.err{color:var(--bad);font-size:.9rem;margin-top:8px;min-height:1.2em}
nav{position:fixed;left:0;right:0;bottom:0;background:var(--card);border-top:1px solid var(--line);display:flex;justify-content:center;padding-bottom:env(safe-area-inset-bottom);z-index:5}
nav div{display:flex;width:100%;max-width:640px}
nav button{flex:1;background:none;border:0;color:var(--mute);padding:10px 2px 12px;font-size:.78rem;cursor:pointer}
nav button b{display:block;font-size:1.2rem;font-weight:400}
nav button.on{color:var(--brand);font-weight:700}
#sheet-root .back{position:fixed;inset:0;background:rgba(0,0,0,.45);z-index:20;display:flex;align-items:flex-end;justify-content:center}
#sheet-root .sheet{background:var(--bg);width:100%;max-width:640px;max-height:92vh;overflow:auto;border-radius:20px 20px 0 0;padding:6px 16px 24px}
.sheet .grab{width:42px;height:4px;background:var(--line);border-radius:9px;margin:8px auto 4px}
#toast{position:fixed;left:50%;transform:translateX(-50%);bottom:90px;background:var(--ink);color:var(--bg);padding:10px 16px;border-radius:12px;z-index:40;display:none;max-width:90%}
.chat{display:flex;flex-direction:column;gap:8px;min-height:50vh;padding-bottom:8px}
.bubble{padding:10px 13px;border-radius:16px;max-width:85%;white-space:pre-wrap;overflow-wrap:anywhere}
.bubble.me{align-self:flex-end;background:var(--brand);color:var(--brand-ink)}
.bubble.ai{align-self:flex-start;background:var(--card);border:1px solid var(--line)}
.composer{position:sticky;bottom:calc(66px + env(safe-area-inset-bottom));display:flex;gap:8px;background:var(--bg);padding:8px 0}
.composer input{flex:1}
.composer button{flex:none;width:48px;border-radius:12px;border:0;background:var(--brand);color:var(--brand-ink);font-size:1.2rem;cursor:pointer}
.composer button.rec{background:var(--bad);color:#fff}
.planrow{border:1px solid var(--line);border-radius:12px;padding:10px;margin:8px 0;background:var(--card)}
.planrow .row{margin-top:6px}
.total{font-weight:700}.total.bad{color:var(--bad)}.total.ok{color:var(--ok)}
.seg{display:flex;gap:6px;flex-wrap:wrap}
.seg label{margin:0;display:flex;gap:6px;align-items:center;border:1px solid var(--line);border-radius:10px;padding:8px 10px;color:var(--ink);background:var(--card)}
.tx{display:flex;justify-content:space-between;gap:10px;padding:10px 0;border-bottom:1px solid var(--line)}
.tx:last-child{border:0}
.st{font-size:.78rem;font-weight:700}.st.completed{color:var(--ok)}.st.failed,.st.rejected,.st.cancelled{color:var(--bad)}.st.pending,.st.processing,.st.cooling,.st.awaiting_approval{color:var(--warn)}
.login{padding-top:12vh}
@media (min-width:700px){body{padding-bottom:90px}}

.node{margin:6px 0}
.node summary{cursor:pointer;list-style:none}
.node summary::-webkit-details-marker{display:none}
.node>summary{display:flex;gap:6px;align-items:flex-start}
.node>summary .cat{flex:1}
.node>summary::before{content:"▸";color:var(--mute);line-height:1.5}
.node[open]>summary::before{content:"▾"}
.kids{margin:6px 0 0 14px;padding-left:10px;border-left:2px solid var(--line)}
.grp.nested{margin-left:10px;padding-left:8px;border-left:2px solid var(--line)}
.grp .total{font-size:.85rem;margin:2px 0 8px}
.planrow .eff{color:var(--mute);font-weight:400}
.planrow .row{flex-wrap:wrap}
.planrow .row>div{min-width:90px}
.planrow .btn.fit{flex:none}