:root {
  --brand: #1f5b4a;
  --brand-dark: #123a2f;
  --bg: #f7f5f0;
  --card: #ffffff;
  --danger: #b3261e;
  --danger-bg: #fdecea;
  --warn: #8a6d00;
  --warn-bg: #fff8e1;
  --border: #e2ded4;
  --text: #2a2a2a;
  --muted: #6b6b6b;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
}
header {
  background: var(--brand-dark);
  color: white;
  padding: 18px 24px;
}
header h1 { margin: 0; font-size: 1.3rem; }
header p { margin: 4px 0 0; opacity: .8; font-size: .85rem; }
main {
  max-width: 1000px;
  margin: 0 auto;
  padding: 24px;
  display: grid;
  gap: 24px;
}
section.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 18px 20px;
}
section.card h2 { margin-top: 0; font-size: 1.05rem; }
.accounts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 12px;
}
.account-tile {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px;
}
.account-tile .name { font-weight: 600; }
.account-tile .type { font-size: .75rem; color: var(--muted); }
.account-tile .balance { font-size: 1.3rem; margin-top: 6px; }
.account-tile.credito .balance { color: var(--danger); }
form.inline { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin-bottom: 10px; }
input, select, button, textarea {
  font: inherit;
  padding: 9px 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  min-height: 40px;
  max-width: 100%;
}
button {
  background: var(--brand);
  color: white;
  border: none;
  cursor: pointer;
}
button.secondary { background: white; color: var(--brand); border: 1px solid var(--brand); }
button:hover { opacity: .9; }
table { width: 100%; border-collapse: collapse; font-size: .9rem; }
th, td { text-align: left; padding: 6px 8px; border-bottom: 1px solid var(--border); }
.badge { padding: 2px 8px; border-radius: 999px; font-size: .72rem; font-weight: 600; }
.badge.pendiente { background: var(--warn-bg); color: var(--warn); }
.badge.parcial { background: #e8f0fe; color: #1a56db; }
.badge.saldada { background: #e6f4ea; color: #1e7a34; }
.message { font-size: .85rem; margin-top: 6px; min-height: 1.1em; }
.message.error { color: var(--danger); }
.message.ok { color: #1e7a34; }
dialog { border-radius: 10px; border: 1px solid var(--border); padding: 20px; max-width: 420px; }
dialog::backdrop { background: rgba(0,0,0,.4); }
.hidden { display: none !important; }
.admin-area { display: grid; gap: 24px; }
.admin-area > summary {
  cursor: pointer;
  font-size: 1.1rem;
  font-weight: 700;
  padding: 4px 0;
  color: var(--brand-dark);
}
.settle-row { display: flex; gap: 6px; align-items: center; }
.dashboard-summary { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 16px; }
.dashboard-currency { border: 1px solid var(--border); border-radius: 8px; padding: 12px 16px; min-width: 200px; }
.dashboard-currency .code { font-size: .75rem; color: var(--muted); text-transform: uppercase; letter-spacing: .04em; }
.dashboard-currency .row { display: flex; justify-content: space-between; gap: 12px; margin-top: 6px; font-size: .95rem; }
.dashboard-currency .row .label { color: var(--muted); }
.direction-cobro { color: #1e7a34; font-weight: 600; }
.direction-pago { color: var(--danger); font-weight: 600; }
.header-user { margin-top: 10px; display: flex; align-items: center; gap: 10px; color: white; font-size: .85rem; }
.header-user button.secondary { background: transparent; color: white; border-color: rgba(255,255,255,.5); min-height: unset; padding: 5px 10px; }
#login-form label { display: block; margin-bottom: 10px; font-size: .85rem; color: var(--muted); }
#login-form input { display: block; width: 100%; margin-top: 4px; }
.user-actions { display: flex; gap: 6px; flex-wrap: wrap; align-items: center; }
.user-name-input, .user-username-input { width: 130px; }
.user-reset-input { width: 130px; }

/* Las tablas nunca deben forzar scroll horizontal en toda la página -- en pantallas
   angostas (teléfono) se desplazan solas dentro de su propio contenedor. */
.table-scroll { overflow-x: auto; -webkit-overflow-scrolling: touch; }
.table-scroll table { min-width: 480px; }

@media (max-width: 640px) {
  header { padding: 14px 16px; }
  header h1 { font-size: 1.15rem; }
  header p { font-size: .78rem; }
  main { padding: 12px; gap: 16px; }
  section.card { padding: 14px; }
  section.card h2 { font-size: 1rem; }
  /* Formularios con varios campos: en escritorio quedan en línea, en el teléfono cada
     campo ocupa todo el ancho -- mucho más fácil de tocar que campos angostos envueltos. */
  form.inline { flex-direction: column; align-items: stretch; }
  form.inline > * { width: 100%; }
  .accounts-grid { grid-template-columns: 1fr 1fr; }
  .dashboard-currency { min-width: 0; flex: 1 1 140px; }
  dialog { width: min(420px, 92vw); padding: 16px; }
}

@media (max-width: 420px) {
  .accounts-grid { grid-template-columns: 1fr; }
}