:root {
  --bg: #f4f6f5;
  --surface: #ffffff;
  --surface-2: #eef2f1;
  --text: #13201d;
  --muted: #5d6b67;
  --border: #dde4e2;
  --primary: #0f766e;
  --primary-ink: #ffffff;
  --primary-soft: #ccebe7;
  --ok: #15803d;
  --ok-soft: #dcfce7;
  --warn: #b45309;
  --warn-soft: #fef3c7;
  --bad: #b91c1c;
  --bad-soft: #fee2e2;
  --shadow: 0 1px 2px rgb(0 0 0 / .05), 0 4px 16px rgb(0 0 0 / .05);
  --radius: 14px;
  --nav-h: 64px;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0b1412;
    --surface: #121e1b;
    --surface-2: #192825;
    --text: #e6efec;
    --muted: #93a39f;
    --border: #24352f;
    --primary: #2dd4bf;
    --primary-ink: #04201c;
    --primary-soft: #123c37;
    --ok: #4ade80;
    --ok-soft: #12321f;
    --warn: #fbbf24;
    --warn-soft: #3a2c0b;
    --bad: #f87171;
    --bad-soft: #3d1515;
    --shadow: none;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  background: var(--bg);
  color: var(--text);
  font: 15px/1.45 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  -webkit-font-smoothing: antialiased;
  -webkit-tap-highlight-color: transparent;
}
[hidden] { display: none !important; }
h1, h2, h3 { margin: 0; line-height: 1.2; }
.muted { color: var(--muted); }
.num { font-variant-numeric: tabular-nums; }
.error { color: var(--bad); min-height: 1.4em; margin: 0; font-size: 14px; }

/* Botones */
.btn {
  appearance: none; border: 1px solid transparent; border-radius: 10px;
  padding: 10px 16px; font: inherit; font-weight: 600; cursor: pointer;
  background: var(--surface-2); color: var(--text);
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  min-height: 42px; white-space: nowrap; text-decoration: none;
}
.btn:disabled { opacity: .5; cursor: not-allowed; }
.btn-primary { background: var(--primary); color: var(--primary-ink); }
.btn-ghost { background: transparent; }
.btn-ghost:hover { background: var(--surface-2); }
.btn-outline { background: transparent; border-color: var(--border); }
.btn-danger-ghost { background: transparent; color: var(--bad); }
.btn-sm { min-height: 34px; padding: 6px 12px; font-size: 14px; }
.btn-icon { min-height: 36px; width: 36px; padding: 0; }
.btn-block { width: 100%; }

/* Login */
.login { min-height: 100dvh; display: grid; place-items: center; padding: 16px; }
.login-card {
  width: 100%; max-width: 340px; background: var(--surface); border: 1px solid var(--border);
  border-radius: 20px; padding: 32px 24px; display: grid; gap: 12px; text-align: center; box-shadow: var(--shadow);
}
.login-logo { margin: 0 auto 4px; border-radius: 16px; }
.login-card p { margin: 0; }

/* Inputs */
input, select, textarea {
  font: inherit; color: var(--text); background: var(--surface);
  border: 1px solid var(--border); border-radius: 10px; padding: 10px 12px; width: 100%; min-height: 44px;
}
input:focus, select:focus, textarea:focus { outline: 2px solid var(--primary); outline-offset: -1px; border-color: transparent; }
label.field { display: grid; gap: 6px; font-size: 13px; font-weight: 600; color: var(--muted); }
.fields { display: grid; gap: 14px; }
.fields-2 { display: grid; gap: 14px; grid-template-columns: 1fr 1fr; }
.hint { font-size: 13px; color: var(--muted); margin: 0; }

/* Layout */
.app { min-height: 100dvh; }
.topbar {
  position: sticky; top: 0; z-index: 10;
  display: flex; align-items: center; gap: 16px;
  padding: max(10px, env(safe-area-inset-top)) 16px 10px;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(10px); border-bottom: 1px solid var(--border);
}
.brand { display: flex; align-items: center; gap: 8px; font-weight: 700; font-size: 17px; }
.brand img { border-radius: 8px; }
.tabs { display: none; gap: 4px; }
.tabs a {
  color: var(--muted); text-decoration: none; padding: 8px 12px; border-radius: 9px; font-weight: 600;
}
.tabs a:hover { background: var(--surface-2); color: var(--text); }
.tabs a.active { background: var(--primary-soft); color: var(--text); }
.topbar-actions { margin-left: auto; display: flex; align-items: center; gap: 8px; }
.sync { font-size: 12px; color: var(--muted); }
.sync.saving { color: var(--warn); }
.sync.error { color: var(--bad); }

.banner { background: var(--warn-soft); color: var(--warn); padding: 10px 16px; font-size: 14px; font-weight: 600; }

.view {
  max-width: 1040px; margin: 0 auto; padding: 16px 16px calc(var(--nav-h) + 24px + env(safe-area-inset-bottom));
  display: grid; gap: 20px;
}

.bottom-nav {
  position: fixed; inset: auto 0 0 0; z-index: 10; height: calc(var(--nav-h) + env(safe-area-inset-bottom));
  padding-bottom: env(safe-area-inset-bottom);
  display: grid; grid-template-columns: repeat(5, 1fr);
  background: var(--surface); border-top: 1px solid var(--border);
}
.bottom-nav a {
  display: grid; place-items: center; align-content: center; gap: 2px;
  color: var(--muted); text-decoration: none; font-size: 11px; font-weight: 600;
}
.bottom-nav svg { width: 22px; height: 22px; fill: currentColor; }
.bottom-nav a.active { color: var(--primary); }

@media (min-width: 820px) {
  .tabs { display: flex; }
  .bottom-nav { display: none; }
  .view { padding-bottom: 40px; padding-top: 24px; }
}

/* Secciones */
.section-head { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.section-head h2 { font-size: 20px; }
.section-head .spacer, .spacer { flex: 1; }
.card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.card-pad { padding: 16px; }
.card.list, .card.calc { overflow: hidden; }

/* KPIs */
.kpis { display: grid; gap: 12px; grid-template-columns: repeat(2, minmax(0, 1fr)); }
@media (min-width: 820px) { .kpis { grid-template-columns: repeat(4, minmax(0, 1fr)); } }
.kpi { padding: 14px 16px; display: grid; gap: 4px; min-width: 0; }
.kpi .label { font-size: 12px; font-weight: 600; color: var(--muted); text-transform: uppercase; letter-spacing: .04em; }
.kpi .value { font-size: 20px; font-weight: 700; overflow-wrap: anywhere; }
.kpi .sub { font-size: 12px; color: var(--muted); }
.kpi-hero { grid-column: 1 / -1; background: var(--primary); color: var(--primary-ink); border-color: transparent; }
.kpi-hero-alt { background: var(--primary-soft); color: var(--text); }
@media (min-width: 820px) { .kpi-hero { grid-column: span 2; } }
.kpi-hero .label, .kpi-hero .sub { color: inherit; opacity: .8; }
.kpi-hero .value { font-size: 26px; }
@media (min-width: 820px) { .kpi-hero .value { font-size: 30px; } }

/* Listas */
.list { display: grid; }
.row {
  display: grid; grid-template-columns: 1fr auto; gap: 4px 12px; align-items: center;
  padding: 14px 16px; border-top: 1px solid var(--border);
}
.row:first-child { border-top: 0; }
.row.clickable { cursor: pointer; }
.row.clickable:hover { background: var(--surface-2); }
.row-title { font-weight: 700; display: flex; align-items: center; gap: 8px; min-width: 0; }
.row-meta { font-size: 13px; color: var(--muted); display: flex; flex-wrap: wrap; gap: 4px 12px; }
.row-amount { font-weight: 700; text-align: right; }
.row-actions { grid-column: 1 / -1; display: flex; gap: 8px; margin-top: 6px; flex-wrap: wrap; }
.empty { padding: 24px 16px; text-align: center; color: var(--muted); }

.badge {
  display: inline-flex; align-items: center; gap: 4px; font-size: 12px; font-weight: 700;
  padding: 2px 8px; border-radius: 999px; white-space: nowrap;
}
.badge-ok { background: var(--ok-soft); color: var(--ok); }
.badge-warn { background: var(--warn-soft); color: var(--warn); }
.badge-bad { background: var(--bad-soft); color: var(--bad); }
.badge-neutral { background: var(--surface-2); color: var(--muted); }

/* Tabla de reparto */
.calc { display: grid; }
.calc-row { display: flex; justify-content: space-between; gap: 12px; padding: 12px 16px; border-top: 1px solid var(--border); }
.calc-row:first-child { border-top: 0; }
.calc-row .k { color: var(--muted); }
.calc-row .v { font-weight: 700; text-align: right; }
.calc-row.total { background: var(--surface-2); }
.calc-row.total .k { color: var(--text); font-weight: 700; }
.calc-row.minus .v { color: var(--bad); }
.calc-row.plus .v { color: var(--ok); }

.grid-2 { display: grid; gap: 20px; }
@media (min-width: 820px) { .grid-2 { grid-template-columns: 1fr 1fr; align-items: start; } }

.alerts { display: grid; gap: 8px; }
.alert { display: flex; align-items: center; gap: 10px; padding: 12px 14px; border-radius: 12px; font-size: 14px; }
.alert-bad { background: var(--bad-soft); color: var(--bad); }
.alert-warn { background: var(--warn-soft); color: var(--warn); }
.alert b { color: var(--text); }

.month-head { display: flex; justify-content: space-between; padding: 10px 16px; background: var(--surface-2); font-weight: 700; font-size: 14px; border-top: 1px solid var(--border); }
.month-head:first-child { border-top: 0; border-radius: var(--radius) var(--radius) 0 0; }

.seg { display: inline-flex; background: var(--surface-2); padding: 3px; border-radius: 10px; }
.seg button { border: 0; background: transparent; font: inherit; font-weight: 600; font-size: 14px; color: var(--muted); padding: 6px 12px; border-radius: 8px; cursor: pointer; }
.seg button.active { background: var(--surface); color: var(--text); box-shadow: var(--shadow); }

/* Diálogo */
.dialog {
  border: 0; padding: 0; border-radius: 18px; width: min(460px, calc(100vw - 24px));
  background: var(--surface); color: var(--text); box-shadow: 0 20px 60px rgb(0 0 0 / .3);
}
.dialog::backdrop { background: rgb(0 0 0 / .45); }
.dialog-head { display: flex; align-items: center; justify-content: space-between; padding: 16px 16px 0 20px; }
.dialog-head h2 { font-size: 18px; }
.dialog-body { padding: 16px 20px; }
.dialog-foot { display: flex; gap: 8px; padding: 0 16px 16px; align-items: center; }
@media (max-width: 520px) {
  .dialog { margin: auto 0 0; width: 100vw; max-width: 100vw; border-radius: 18px 18px 0 0; padding-bottom: env(safe-area-inset-bottom); }
}

.toast {
  position: fixed; left: 50%; bottom: calc(var(--nav-h) + 16px + env(safe-area-inset-bottom)); transform: translate(-50%, 20px);
  background: var(--text); color: var(--bg); padding: 10px 16px; border-radius: 10px; font-weight: 600; font-size: 14px;
  opacity: 0; pointer-events: none; transition: .2s; z-index: 50; max-width: calc(100vw - 32px);
}
.toast.show { opacity: 1; transform: translate(-50%, 0); }
@media (min-width: 820px) { .toast { bottom: 24px; } }

/* Importe en $ o US$ */
.importe { display: grid; gap: 8px; }
.importe-row { display: flex; gap: 8px; align-items: center; }
.importe-row .seg { flex: none; }
.importe-row input[readonly] { background: var(--surface-2); color: var(--muted); }
.importe > span { font-size: 13px; font-weight: 600; color: var(--muted); }

.check { display: flex; gap: 10px; align-items: flex-start; padding: 12px; border-radius: 10px; background: var(--primary-soft); font-size: 14px; cursor: pointer; }
.check input { width: 20px; height: 20px; min-height: 0; margin: 1px 0 0; accent-color: var(--primary); flex: none; }