:root {
  --green: #2E7D4F; --green-d: #1F5C39; --green-l: #E6F2EA; --mint: #8FD3A8;
  --ink: #1E2A25; --grey: #6B7671; --line: #D9E2DC; --paper: #FAFCF9;
  --amber: #E0A030; --amber-l: #FBF1DC; --water: #4A9BD9; --red: #B3402E;
  --nav-h: 64px;
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--paper); color: var(--ink);
  font: 16px/1.45 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  padding-bottom: calc(var(--nav-h) + env(safe-area-inset-bottom));
}
h1 { font-size: 26px; line-height: 1.15; margin: 0; letter-spacing: -0.01em; }
h2 { font-size: 18px; margin: 0; }
p { margin: 0 0 8px; }
.muted { color: var(--grey); }
.small { font-size: 13px; }
.view { max-width: 520px; margin: 0 auto; padding: 20px 18px 24px; }
.page-head { margin-bottom: 18px; }
.page-head p { margin-top: 6px; }
.section-title { font-size: 13px; font-weight: 600; color: var(--green-d); margin: 26px 0 10px; }

/* forms */
input, select, textarea, button { font: inherit; }
input, select, textarea {
  width: 100%; padding: 12px 12px; border: 1px solid var(--line); border-radius: 10px;
  background: #fff; color: var(--ink); margin-top: 4px;
}
input:focus, select:focus, textarea:focus, button:focus-visible { outline: 2px solid var(--green); outline-offset: 1px; }
label { display: block; font-size: 14px; color: var(--grey); margin-bottom: 12px; }
.stack label { margin-bottom: 14px; }
.row { display: flex; gap: 10px; align-items: flex-end; }
.row > * { flex: 1; min-width: 0; }
.btn {
  display: inline-block; width: 100%; padding: 13px 16px; border: 0; border-radius: 12px;
  background: var(--green); color: #fff; font-weight: 600; text-align: center; text-decoration: none; cursor: pointer;
}
.btn:active { background: var(--green-d); }
.btn-quiet { background: var(--green-l); color: var(--green-d); }
.btn-block { display: block; }
.btn[disabled] { opacity: .55; cursor: default; }
.icon-btn { background: var(--green-l); color: var(--green-d); border: 0; border-radius: 10px; width: 44px; height: 44px; font-size: 20px; cursor: pointer; }
.msg { padding: 10px 12px; border-radius: 10px; background: var(--green-l); color: var(--green-d); font-size: 14px; margin: 10px 0; }
.msg.err { background: #F7E3DF; color: var(--red); }
.msg.warn { background: var(--amber-l); color: #7A5410; }
.empty { color: var(--grey); padding: 20px 0; }
.seg { display: inline-flex; gap: 4px; background: var(--green-l); border-radius: 10px; padding: 3px; margin-top: 10px; }
.seg button { border: 0; background: transparent; padding: 6px 12px; border-radius: 8px; color: var(--green-d); cursor: pointer; }
.seg button.on { background: #fff; font-weight: 600; }
details summary { cursor: pointer; color: var(--green-d); font-weight: 600; margin: 8px 0 12px; }

/* auth */
.auth { padding-top: 60px; }
.auth-brand { display: flex; align-items: center; gap: 12px; margin-bottom: 6px; }
.leaf { width: 40px; height: 40px; border-radius: 50%; background: var(--green) url(/icon-192.png) center/cover; }
.auth-tag { color: var(--grey); margin-bottom: 30px; }
.btn-google { background: #fff; color: var(--ink); border: 1px solid var(--line); }
.or { text-align: center; color: var(--grey); font-size: 13px; margin: 18px 0 10px; }
#form-login input, #form-register input, #form-reset input { margin-bottom: 10px; }

/* today */
.today-head { display: flex; align-items: center; gap: 8px; margin-bottom: 16px; }
.today-head > div { flex: 1; }
.entry textarea { resize: none; border-radius: 14px; padding: 14px; border-color: var(--green); background: #fff; }
.entry-actions { display: flex; gap: 10px; margin-top: 8px; align-items: center; }
.entry-actions .btn { flex: 1; }
.budget { margin-top: 22px; display: grid; grid-template-columns: 120px 1fr; gap: 18px; align-items: center; }
.budget-main { display: flex; flex-direction: column; }
.big { font-size: 40px; font-weight: 700; letter-spacing: -0.03em; font-variant-numeric: tabular-nums; line-height: 1; color: var(--green-d); }
.big.over { color: var(--red); }
.bars { display: flex; flex-direction: column; gap: 10px; }
.bar-label { display: flex; justify-content: space-between; font-size: 12px; color: var(--grey); margin-bottom: 4px; font-variant-numeric: tabular-nums; }
.track { height: 6px; background: var(--line); border-radius: 3px; overflow: hidden; }
.fill { height: 100%; width: 0; background: var(--green); border-radius: 3px; transition: width .4s ease; }
.fill.over { background: var(--red); }
.fill.water { background: var(--water); }

/* receipt list */
.receipt { border-top: 1px solid var(--line); }
.entry-row { display: flex; gap: 12px; padding: 12px 0; border-bottom: 1px solid var(--line); align-items: flex-start; }
.entry-row .t { color: var(--grey); font-size: 12px; width: 44px; flex: none; padding-top: 3px; font-variant-numeric: tabular-nums; }
.entry-row .b { flex: 1; min-width: 0; }
.entry-row .n { font-weight: 600; }
.entry-row .d { color: var(--grey); font-size: 13px; }
.entry-row .v { text-align: right; flex: none; font-variant-numeric: tabular-nums; }
.entry-row .v small { display: block; color: var(--grey); font-size: 12px; }
.entry-row .x { border: 0; background: none; color: var(--grey); font-size: 18px; padding: 0 0 0 6px; cursor: pointer; }
.chip { display: inline-block; font-size: 11px; padding: 1px 7px; border-radius: 999px; background: var(--green-l); color: var(--green-d); margin-left: 4px; vertical-align: middle; }
.chip.ai { background: var(--amber-l); color: #7A5410; }
.chip.manual { background: #EEF0EF; color: var(--grey); }
.chip.flag { background: var(--amber); color: #fff; }

/* pending */
.pending-card { background: var(--amber-l); border-radius: 12px; padding: 12px 14px; margin-bottom: 10px; display: flex; gap: 10px; align-items: center; }
.pending-card .b { flex: 1; min-width: 0; }
.pending-card .btn { width: auto; padding: 8px 14px; }

/* sheets */
.sheet { position: fixed; inset: 0; background: rgba(30,42,37,.45); z-index: 20; display: flex; align-items: flex-end; }
.sheet-body { background: var(--paper); width: 100%; max-width: 560px; margin: 0 auto; max-height: 92vh; overflow: auto; border-radius: 18px 18px 0 0; padding: 16px 18px calc(18px + env(safe-area-inset-bottom)); }
.sheet-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 8px; }
.sheet-actions { display: flex; gap: 10px; margin-top: 16px; }
.item { border: 1px solid var(--line); border-radius: 12px; padding: 12px; margin: 10px 0; background: #fff; }
.item.flagged { border-color: var(--amber); }
.item-head { display: flex; justify-content: space-between; align-items: center; gap: 8px; }
.item-head .n { font-weight: 600; }
.item-meta { color: var(--grey); font-size: 13px; margin: 2px 0 8px; }
.item .row input { padding: 8px 10px; }
.cands { margin: 8px 0 4px; }
.cand { display: flex; gap: 10px; align-items: center; padding: 8px 10px; border-radius: 10px; border: 1px solid var(--line); margin-bottom: 6px; cursor: pointer; font-size: 14px; }
.cand.on { border-color: var(--green); background: var(--green-l); }
.cand .src { font-size: 11px; color: var(--grey); width: 58px; flex: none; }
.cand .nm { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.cand .kv { flex: none; font-variant-numeric: tabular-nums; }
.item .del { background: none; border: 0; color: var(--grey); cursor: pointer; font-size: 13px; padding: 4px 0; }

/* scan */
#scan-preview { width: 100%; border-radius: 12px; margin: 14px 0; }

/* trends */
.stats { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.stat { background: var(--green-l); border-radius: 12px; padding: 12px; }
.stat .k { font-size: 12px; color: var(--green-d); }
.stat .v { font-size: 22px; font-weight: 700; font-variant-numeric: tabular-nums; letter-spacing: -0.02em; }
.stat .s { font-size: 12px; color: var(--grey); }
canvas { width: 100%; display: block; background: #fff; border: 1px solid var(--line); border-radius: 12px; }
.legend { font-size: 12px; color: var(--grey); margin-top: 6px; display: flex; gap: 12px; flex-wrap: wrap; align-items: center; }
.sw { display: inline-block; width: 18px; height: 3px; background: var(--green); margin-right: 4px; vertical-align: middle; }
.sw.ink { background: var(--ink); } .sw.dash { background: repeating-linear-gradient(90deg, currentColor 0 4px, transparent 4px 7px); color: var(--green); }
.sw.ink.dash { color: var(--ink); } .sw.dot { width: 8px; height: 8px; border-radius: 50%; background: #B7C4BC; }
.insight { border-left: 3px solid var(--green); padding: 4px 0 4px 12px; margin: 12px 0; }
.insight.s3 { border-color: var(--red); } .insight.s2 { border-color: var(--amber); } .insight.s0 { border-color: var(--mint); }
.insight .k { font-weight: 600; } .insight .d { color: var(--grey); font-size: 14px; }

/* settings */
.targets { background: var(--green-l); border-radius: 12px; padding: 12px 14px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.targets div { font-size: 12px; color: var(--green-d); }
.targets strong { display: block; font-size: 18px; color: var(--ink); font-variant-numeric: tabular-nums; }
.user-row { display: flex; justify-content: space-between; align-items: center; gap: 8px; padding: 10px 0; border-bottom: 1px solid var(--line); font-size: 14px; }
.user-row .btns { display: flex; gap: 6px; }
.user-row .btns button { border: 0; background: var(--green-l); color: var(--green-d); border-radius: 8px; padding: 5px 9px; font-size: 12px; cursor: pointer; }
.user-row .btns button.danger { background: #F7E3DF; color: var(--red); }

/* nav */
#nav {
  position: fixed; bottom: 0; left: 0; right: 0; height: calc(var(--nav-h) + env(safe-area-inset-bottom));
  padding-bottom: env(safe-area-inset-bottom); background: #fff; border-top: 1px solid var(--line);
  display: flex; justify-content: space-around; z-index: 10;
}
#nav button { flex: 1; border: 0; background: none; color: var(--grey); font-size: 11px; display: flex; flex-direction: column; align-items: center; gap: 2px; padding-top: 8px; cursor: pointer; }
#nav button span { font-size: 20px; line-height: 1; }
#nav button.on { color: var(--green-d); font-weight: 600; }

#toast { position: fixed; left: 50%; bottom: calc(var(--nav-h) + 16px); transform: translateX(-50%); background: var(--ink); color: #fff; padding: 10px 16px; border-radius: 999px; font-size: 14px; z-index: 30; max-width: 90vw; }

@media (prefers-reduced-motion: reduce) { .fill { transition: none; } }
@media (min-width: 720px) { .view { padding-top: 32px; } }