:root {
  --bg: #f6f7f9; --card: #ffffff; --text: #14171f; --muted: #6a7280; --line: #e5e8ee;
  --accent: #2457d6; --on-accent: #ffffff; --accent-bg: #e8efff;
  --inc: #177a45; --inc-bg: #e4f5ec; --exp: #b9381f; --exp-bg: #fdebe6; --warn: #c47f12;
  --radius: 14px; color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1115; --card: #181b22; --text: #eef0f4; --muted: #9aa3b2; --line: #2a2f3a;
    --accent: #7aa2ff; --on-accent: #0b1020; --accent-bg: #1c2a4d;
    --inc: #5fd08f; --inc-bg: #14301f; --exp: #ff8a70; --exp-bg: #3a1d17; --warn: #e8b252;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font: 16px/1.45 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  font-variant-numeric: tabular-nums;
}
[hidden] { display: none !important; }
h1, h2, h3, p { margin: 0; }
h2 { font-size: 15px; font-weight: 600; }
.h1 { font-size: 22px; margin: 4px 0 12px; }
.muted { color: var(--muted); }
.small { font-size: 13px; }
.center { text-align: center; }
.pad { padding: 16px; }
.err { color: var(--exp); font-size: 14px; min-height: 20px; margin-top: 8px; }
.between { display: flex; justify-content: space-between; align-items: center; gap: 12px; }
.grow { flex: 1; min-width: 0; }

#app { max-width: 640px; margin: 0 auto; padding: 0 16px calc(96px + env(safe-area-inset-bottom)); }
.top { position: sticky; top: 0; z-index: 5; background: var(--bg); padding: calc(12px + env(safe-area-inset-top)) 0 10px; }
main { outline: none; }

.seg { display: flex; gap: 4px; background: var(--line); padding: 4px; border-radius: 12px; }
.seg button {
  flex: 1; border: 0; background: transparent; color: var(--muted); font: inherit; font-weight: 600;
  padding: 9px 8px; border-radius: 9px; cursor: pointer; min-height: 40px;
}
.seg button.on { background: var(--card); color: var(--text); box-shadow: 0 1px 2px rgba(0,0,0,.08); }
.seg-type { margin-bottom: 6px; }
.seg-type button.on.exp { background: var(--exp-bg); color: var(--exp); }
.seg-type button.on.inc { background: var(--inc-bg); color: var(--inc); }

.banner { background: var(--accent-bg); color: var(--accent); padding: 10px 14px; border-radius: 10px; margin-bottom: 12px; font-size: 14px; }

.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px; margin-bottom: 12px; }
.card.list { padding: 4px 16px; }
.card h2 { margin-bottom: 10px; }
.card .between h2 { margin-bottom: 0; }
.card .between { margin-bottom: 10px; }

.month-nav { display: flex; align-items: center; justify-content: space-between; margin: 2px 0 12px; }
.month-nav strong { font-size: 17px; }
.icon-btn {
  width: 44px; height: 44px; border: 0; background: transparent; color: var(--text);
  display: grid; place-items: center; border-radius: 12px; cursor: pointer;
}
.icon-btn:disabled { opacity: .3; cursor: default; }
.icon-btn:active:not(:disabled) { background: var(--line); }

.metrics { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 8px; margin-bottom: 10px; }
.metric { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 12px 10px; }
.metric span { display: block; font-size: 12px; color: var(--muted); }
.metric strong { display: block; font-size: 16px; overflow-wrap: anywhere; }
.metric strong.inc, .metric.good strong { color: var(--inc); }
.metric.good { background: var(--inc-bg); border-color: transparent; }
.metric.bad { background: var(--exp-bg); border-color: transparent; }
.metric.bad strong { color: var(--exp); }
.delta { margin: 0 0 10px; }
.chip-s { display: inline-block; font-size: 12px; padding: 4px 10px; border-radius: 8px; }
.chip-s.good { background: var(--inc-bg); color: var(--inc); }
.chip-s.bad { background: var(--exp-bg); color: var(--exp); }

.bar { display: block; height: 8px; background: var(--line); border-radius: 6px; overflow: hidden; margin: 8px 0 6px; }
.bar.thin { height: 5px; margin: 6px 0 0; }
.bar i { display: block; height: 100%; background: var(--accent); border-radius: 6px; }
.bar i.warn { background: var(--warn); }
.bar i.over { background: var(--exp); }

.row, .cat-row {
  display: flex; align-items: center; gap: 12px; width: 100%; text-align: left; border: 0; background: transparent;
  color: inherit; font: inherit; padding: 11px 0; cursor: pointer; border-top: 1px solid var(--line);
}
.card > .row:first-of-type, .card > .cat-row:first-of-type, .card.list > .row:first-child { border-top: 0; }
.row .grow b, .cat-row b { font-weight: 600; }
.row small { display: block; color: var(--muted); font-size: 13px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.dot { width: 10px; height: 10px; border-radius: 50%; flex: none; }
.amt { font-weight: 600; white-space: nowrap; }
.amt.ingreso { color: var(--inc); }
.pct { color: var(--muted); width: 36px; text-align: right; }
.day { font-size: 13px; color: var(--muted); font-weight: 600; margin: 14px 4px 6px; }
.summary-line { margin: 0 4px 4px; }

.trend { display: flex; gap: 8px; align-items: flex-end; height: 130px; }
.tcol { flex: 1; display: flex; flex-direction: column; align-items: center; gap: 6px; height: 100%; }
.tbars { flex: 1; width: 100%; display: flex; align-items: flex-end; justify-content: center; gap: 3px; }
.tcol span { font-size: 12px; color: var(--muted); }
.b { display: block; width: 40%; max-width: 16px; border-radius: 4px 4px 0 0; }
.b.inc { background: var(--inc); }
.b.exp { background: var(--exp); }
.legend { font-size: 12px; color: var(--muted); display: flex; align-items: center; gap: 4px; }
.legend .b { width: 10px; height: 10px; border-radius: 3px; display: inline-block; margin-left: 6px; }

.filters { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin-bottom: 10px; }
select, input {
  width: 100%; min-height: 44px; padding: 10px 12px; font: inherit; color: var(--text);
  background: var(--card); border: 1px solid var(--line); border-radius: 10px;
}
select:focus-visible, input:focus-visible, button:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.form .lbl, .card .lbl { display: block; font-size: 13px; font-weight: 600; color: var(--muted); margin: 14px 0 6px; }
.amount { display: flex; align-items: center; gap: 8px; border: 1px solid var(--line); border-radius: 12px; padding: 0 14px; background: var(--card); }
.amount span { font-size: 26px; color: var(--muted); }
.amount input { border: 0; font-size: 30px; font-weight: 600; padding: 8px 0; min-height: 56px; background: transparent; }
.amount input:focus-visible { outline: none; }
.amount:focus-within { outline: 2px solid var(--accent); }
.amount.sm { flex: 1; }
.amount.sm span { font-size: 18px; }
.amount.sm input { font-size: 18px; min-height: 44px; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip {
  border: 1px solid var(--line); background: var(--card); color: var(--text); font: inherit; font-size: 14px;
  padding: 9px 14px; border-radius: 999px; cursor: pointer; min-height: 40px;
}
.chip.on { background: var(--accent-bg); color: var(--accent); border-color: var(--accent); font-weight: 600; }
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }

.btn {
  border: 1px solid var(--line); background: var(--card); color: var(--text); font: inherit; font-weight: 600;
  padding: 11px 16px; border-radius: 12px; cursor: pointer; min-height: 46px;
}
.btn.primary { background: var(--accent); color: var(--on-accent); border-color: var(--accent); }
.btn.danger { color: var(--exp); }
.btn.block { display: block; width: 100%; margin-top: 12px; }
.btn:disabled { opacity: .6; }
.btn-row { display: flex; gap: 8px; }
.btn-row .btn { flex: 1; }
.link { border: 0; background: transparent; color: var(--accent); font: inherit; font-size: 14px; cursor: pointer; padding: 8px 6px; min-height: 36px; }
.link.danger { color: var(--exp); }

.sub { font-size: 13px; color: var(--muted); font-weight: 600; margin: 14px 0 4px; }
.srow { display: flex; align-items: center; gap: 10px; padding: 4px 0; border-top: 1px solid var(--line); }
.add-row { display: flex; gap: 8px; margin-top: 10px; align-items: center; }
.add-row input { flex: 1; }

.nav {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 10; display: flex; justify-content: center; gap: 4px;
  background: var(--card); border-top: 1px solid var(--line); padding: 6px 8px calc(6px + env(safe-area-inset-bottom));
}
.nav-item {
  flex: 1; max-width: 120px; display: flex; flex-direction: column; align-items: center; gap: 2px; border: 0;
  background: transparent; color: var(--muted); font: inherit; font-size: 11px; padding: 6px 4px; border-radius: 12px;
  cursor: pointer; min-height: 52px;
}
.nav-item.on { color: var(--accent); font-weight: 600; }
.nav-add svg { background: var(--accent); color: var(--on-accent); border-radius: 12px; padding: 5px; width: 34px; height: 34px; }
.nav-add.on svg { outline: 2px solid var(--accent); outline-offset: 2px; }

.toast {
  position: fixed; left: 50%; bottom: calc(86px + env(safe-area-inset-bottom)); transform: translate(-50%, 20px);
  background: var(--text); color: var(--bg); padding: 11px 16px; border-radius: 12px; font-size: 14px;
  max-width: min(92vw, 420px); opacity: 0; pointer-events: none; transition: opacity .2s, transform .2s; z-index: 20; text-align: center;
}
.toast.show { opacity: 1; transform: translate(-50%, 0); }

.login { min-height: 100vh; display: grid; place-items: center; padding: 20px; }
.login-card { width: 100%; max-width: 380px; }
.login-card h1 { font-size: 26px; }
.login-card .lbl { margin-top: 16px; }

@media (prefers-reduced-motion: reduce) { .toast { transition: none; } }