:root {
  --bg: #f5f6f8;
  --card: #ffffff;
  --text: #1b2230;
  --muted: #6a7488;
  --line: #e3e6ec;
  --accent: #3b5bdb;
  --accent-text: #ffffff;
  --ingreso: #1f8f5f;
  --gasto: #d9480f;
  --radius: 14px;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #12151c;
    --card: #1b2030;
    --text: #eceff6;
    --muted: #97a1b7;
    --line: #2a3144;
    --accent: #6c85f5;
    --accent-text: #0e1220;
    --ingreso: #45c88f;
    --gasto: #ff8a5c;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.45 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
main { max-width: 760px; margin: 0 auto; padding: 16px 14px 48px; }
h1 { font-size: 1.25rem; margin: 0; }
h2 { font-size: 1rem; margin: 0 0 10px; }
.top { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-bottom: 14px; }
.top small { color: var(--muted); display: block; }
.panel, .card, .login {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 14px;
  margin-bottom: 14px;
}
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-bottom: 14px; }
.card { margin: 0; padding: 12px; }
.card span { display: block; color: var(--muted); font-size: .8rem; }
.card strong { font-size: 1.05rem; word-break: break-word; }
.ingreso { color: var(--ingreso); }
.gasto { color: var(--gasto); }
label { display: block; font-size: .85rem; color: var(--muted); margin-bottom: 4px; }
input, select, button { font: inherit; }
input, select {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--bg);
  color: var(--text);
}
.grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.grid .full { grid-column: 1 / -1; }
.seg-wrap { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; margin-bottom: 10px; }
button { cursor: pointer; border-radius: 10px; border: 1px solid var(--line); padding: 10px 14px; background: var(--card); color: var(--text); }
button.seg.on { background: var(--accent); color: var(--accent-text); border-color: var(--accent); }
button.primary { background: var(--accent); color: var(--accent-text); border-color: var(--accent); width: 100%; font-weight: 600; margin-top: 4px; }
button.link { background: none; border: 0; color: var(--accent); width: 100%; margin-top: 6px; }
button:disabled { opacity: .6; cursor: default; }
.msg { color: var(--gasto); min-height: 1.2em; margin: 8px 0 0; font-size: .9rem; }
.login { max-width: 380px; margin: 12vh auto 0; display: grid; gap: 10px; }
.login[hidden], input[hidden] { display: none; }
.bar-row { margin-bottom: 10px; }
.bar-row .head { display: flex; justify-content: space-between; font-size: .9rem; margin-bottom: 4px; }
.bar { height: 8px; border-radius: 99px; background: var(--line); overflow: hidden; }
.bar > i { display: block; height: 100%; background: var(--accent); border-radius: 99px; }
ul.movs { list-style: none; margin: 0; padding: 0; }
ul.movs li { display: grid; grid-template-columns: 46px 1fr auto auto; gap: 10px; align-items: center; padding: 10px 0; border-top: 1px solid var(--line); }
ul.movs li:first-child { border-top: 0; }
.mov-fecha { color: var(--muted); font-size: .85rem; }
.mov-desc small { display: block; color: var(--muted); }
.mov-monto { font-weight: 600; white-space: nowrap; }
.del { padding: 4px 9px; line-height: 1; color: var(--muted); }
.vacio { color: var(--muted); margin: 0; }
@media (max-width: 480px) {
  .cards { grid-template-columns: 1fr; }
  .card { display: flex; justify-content: space-between; align-items: center; }
}