:root {
  --bg: #f9f9f7;
  --card: #fcfcfb;
  --text: #0b0b0b;
  --text-secondary: #52514e;
  --muted: #898781;
  --border: rgba(11,11,11,0.10);
  --gridline: #e1e0d9;
  --accent: #e8590c;
  --accent-dark: #c94a09;
  --green: #006300;
  --red: #d03b3b;
  --nav-h: 64px;
  --header-h: 56px;

  /* paleta categórica (identidad, orden fijo) */
  --series-1: #2a78d6; /* azul */
  --series-2: #eb6834; /* naranja */
  --series-3: #1baf7a; /* aqua */
  --series-4: #eda100; /* amarillo */
  --series-5: #e87ba4; /* magenta */
  --series-track: #eeede8;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0d0d0d;
    --card: #1a1a19;
    --text: #ffffff;
    --text-secondary: #c3c2b7;
    --muted: #898781;
    --border: rgba(255,255,255,0.10);
    --gridline: #2c2c2a;
    --accent: #ff7a33;
    --accent-dark: #e8590c;
    --green: #0ca30c;
    --red: #e66767;
    --series-1: #3987e5;
    --series-2: #d95926;
    --series-3: #199e70;
    --series-4: #c98500;
    --series-5: #d55181;
    --series-track: #262623;
  }
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  -webkit-tap-highlight-color: transparent;
}

body {
  min-height: 100vh;
  padding-bottom: env(safe-area-inset-bottom);
}

.hidden { display: none !important; }

button { font-family: inherit; cursor: pointer; }

input, select, textarea {
  font-family: inherit;
  font-size: 16px; /* evita zoom automático en iOS al enfocar */
}

/* ---------- Login ---------- */
#login-screen {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}
.login-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 32px 24px;
  width: 100%;
  max-width: 360px;
  box-shadow: 0 4px 24px rgba(0,0,0,0.08);
}
.login-card h1 { font-size: 22px; margin: 0 0 4px; text-align: center; }
.login-card .sub { text-align: center; color: var(--muted); font-size: 13px; margin-bottom: 24px; }
.field { margin-bottom: 14px; }
.field label { display: block; font-size: 13px; color: var(--text-secondary); margin-bottom: 4px; }
.field input, .field select, .field textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--bg);
  color: var(--text);
}
.btn-primary {
  width: 100%;
  padding: 13px;
  border: none;
  border-radius: 10px;
  background: var(--accent);
  color: white;
  font-weight: 600;
  font-size: 15px;
  margin-top: 6px;
}
.btn-primary:active { background: var(--accent-dark); }
.error-msg { color: var(--red); font-size: 13px; margin-top: 10px; text-align: center; }

/* ---------- App shell ---------- */
#app { min-height: 100vh; padding-bottom: 24px; }

header.topbar {
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
  background: var(--card);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
}
header.topbar .title { font-weight: 700; font-size: 16px; }
header.topbar .title span { color: var(--accent); }
header.topbar .user-info { font-size: 12px; color: var(--muted); display: flex; align-items: center; gap: 10px; }
.logout-btn { border: none; background: none; color: var(--muted); font-size: 12px; text-decoration: underline; }

main.content { padding: 14px; max-width: 640px; margin: 0 auto; }

.card {
  background: var(--card);
  border-radius: 14px;
  padding: 16px;
  margin-bottom: 14px;
  border: 1px solid var(--border);
}
.card h3 {
  font-size: 13px;
  margin: 0 0 12px;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: .03em;
  font-weight: 700;
}

/* ---------- Selector de periodo ---------- */
.period-row {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 2px;
  margin-bottom: 14px;
  -ms-overflow-style: none;
  scrollbar-width: none;
}
.period-row::-webkit-scrollbar { display: none; }
.period-chip {
  flex: 0 0 auto;
  padding: 8px 16px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 600;
  white-space: nowrap;
}
.period-chip.active { background: var(--accent); color: white; border-color: var(--accent); }
.period-custom {
  display: flex;
  gap: 8px;
  margin-top: 8px;
}
.period-custom input { flex: 1; padding: 9px 10px; border: 1px solid var(--border); border-radius: 8px; background: var(--card); color: var(--text); }

/* ---------- Hero balance ---------- */
.hero-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 20px;
  margin-bottom: 12px;
  text-align: center;
}
.hero-card .label { font-size: 13px; color: var(--text-secondary); text-transform: uppercase; letter-spacing: .04em; font-weight: 600; }
.hero-card .value { font-size: 40px; font-weight: 700; margin-top: 6px; line-height: 1.1; }
.hero-card .sub { font-size: 12px; color: var(--muted); margin-top: 6px; }

/* ---------- KPI grid (clickable) ---------- */
.kpi-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-bottom: 14px;
}
.kpi-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 14px;
  text-align: left;
  display: block;
}
.kpi-card .icon { font-size: 18px; }
.kpi-card .label { font-size: 12px; color: var(--text-secondary); margin-top: 4px; }
.kpi-card .value { font-size: 20px; font-weight: 700; margin-top: 2px; }
.kpi-card .caret { float: right; color: var(--muted); font-size: 13px; transition: transform .2s; }
.kpi-card.open .caret { transform: rotate(180deg); }
.kpi-card.open { border-color: var(--accent); }

/* ---------- Bar list (gráficas horizontales) ---------- */
.bar-list { display: flex; flex-direction: column; gap: 10px; }
.bar-row { display: flex; align-items: center; gap: 10px; }
.bar-row .bl-label { flex: 0 0 92px; font-size: 12px; color: var(--text-secondary); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.bar-row .bl-track { flex: 1; height: 22px; border-radius: 4px; background: var(--series-track); position: relative; overflow: hidden; }
.bar-row .bl-fill { height: 100%; border-radius: 0 4px 4px 0; min-width: 2px; }
.bar-row .bl-value { flex: 0 0 auto; font-size: 12px; font-weight: 700; min-width: 54px; text-align: right; font-variant-numeric: tabular-nums; }

/* ---------- Trend (columnas verticales) ---------- */
.trend-chart { display: flex; align-items: flex-end; gap: 3px; height: 90px; margin-top: 4px; }
.trend-col { flex: 1; display: flex; flex-direction: column; align-items: center; justify-content: flex-end; height: 100%; min-width: 4px; }
.trend-bar { width: 100%; max-width: 18px; border-radius: 4px 4px 0 0; background: var(--series-1); }
.trend-labels { display: flex; gap: 3px; margin-top: 4px; }
.trend-labels span { flex: 1; text-align: center; font-size: 9px; color: var(--muted); min-width: 4px; }
.trend-peak { font-size: 10px; font-weight: 700; color: var(--text); text-align: center; margin-bottom: 2px; }

.empty-msg { text-align: center; color: var(--muted); font-size: 13px; padding: 16px 0; }

/* ---------- Acordeón de secciones ---------- */
.section-block { margin-bottom: 14px; }
.section-header {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 14px 16px;
  font-weight: 700;
  font-size: 15px;
  color: var(--text);
}
.section-header .caret { color: var(--muted); transition: transform .2s; }
.section-header.open { border-radius: 14px 14px 0 0; border-bottom: none; }
.section-header.open .caret { transform: rotate(180deg); }
.section-body {
  border: 1px solid var(--border);
  border-top: none;
  border-radius: 0 0 14px 14px;
  padding: 14px;
  background: var(--bg);
}

.row2 { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.row3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 10px; }

.btn { padding: 12px; border-radius: 10px; border: 1px solid var(--border); background: var(--card); color: var(--text); font-size: 14px; font-weight: 600; }
.btn-accent { background: var(--accent); color: white; border: none; }
.btn-accent:active { background: var(--accent-dark); }
.btn-block { width: 100%; margin-top: 4px; }
.btn-danger { color: var(--red); }
.btn-small { padding: 6px 10px; font-size: 12px; }

.subcard { background: var(--card); border: 1px solid var(--border); border-radius: 12px; padding: 12px; margin-bottom: 12px; }
.subcard h4 { font-size: 12px; margin: 0 0 10px; color: var(--text-secondary); text-transform: uppercase; letter-spacing: .03em; }

.list-item { display: flex; justify-content: space-between; align-items: center; padding: 12px 0; border-bottom: 1px solid var(--border); gap: 10px; }
.list-item:last-child { border-bottom: none; }
.list-item .li-main { flex: 1; min-width: 0; }
.list-item .li-title { font-weight: 600; font-size: 14px; }
.list-item .li-sub { font-size: 12px; color: var(--muted); }
.list-item .li-amount { font-weight: 700; font-size: 14px; white-space: nowrap; }
.amount-pos { color: var(--green); }
.amount-neg { color: var(--red); }

/* ---------- Personas: tarjeta con detalle anidado ---------- */
.persona-item { border-bottom: 1px solid var(--border); }
.persona-item:last-child { border-bottom: none; }
.persona-row { display: flex; justify-content: space-between; align-items: center; padding: 12px 4px; gap: 10px; }
.persona-row .li-main { flex: 1; min-width: 0; }
.persona-row .caret { color: var(--muted); font-size: 12px; transition: transform .2s; }
.persona-row.open .caret { transform: rotate(180deg); }
.persona-detail { padding: 0 4px 14px; }

@media (min-width: 600px) {
  main.content { padding: 24px; }
  .kpi-grid { grid-template-columns: repeat(4, 1fr); }
}