/* ===== Variables y base ===== */
:root {
  --bg: #0f172a;
  --bg-soft: #1e293b;
  --card: #1e293b;
  --card-2: #273449;
  --border: #334155;
  --text: #e2e8f0;
  --muted: #94a3b8;
  --primary: #6366f1;
  --primary-d: #4f46e5;
  --ok: #22c55e;
  --ok-soft: rgba(34, 197, 94, .12);
  --bad: #ef4444;
  --bad-soft: rgba(239, 68, 68, .12);
  --warn: #f59e0b;
  --warn-soft: rgba(245, 158, 11, .12);
  --radius: 14px;
  --shadow: 0 8px 24px rgba(0, 0, 0, .25);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: radial-gradient(1200px 600px at 80% -10%, #1e293b, var(--bg));
  color: var(--text);
  min-height: 100vh;
  line-height: 1.5;
}

a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ===== Layout ===== */
.contenedor { max-width: 980px; margin: 0 auto; padding: 0 16px 64px; }

header.barra {
  position: sticky; top: 0; z-index: 10;
  background: rgba(15, 23, 42, .85);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}
.barra-inner {
  max-width: 980px; margin: 0 auto; padding: 12px 16px;
  display: flex; align-items: center; gap: 18px;
}
.logo { font-weight: 800; font-size: 18px; letter-spacing: .3px; }
.logo span { color: var(--primary); }
nav.menu { display: flex; gap: 6px; flex-wrap: wrap; margin-left: auto; align-items: center; }
nav.menu a {
  color: var(--muted); padding: 8px 12px; border-radius: 10px; font-size: 14px; font-weight: 600;
}
nav.menu a:hover { background: var(--card-2); color: var(--text); text-decoration: none; }
nav.menu a.activo { background: var(--primary); color: #fff; }
.usuario-chip { color: var(--muted); font-size: 13px; padding-left: 6px; }

/* ===== Cards y grid ===== */
h1 { font-size: 24px; margin: 28px 0 6px; }
.subtitulo { color: var(--muted); margin: 0 0 20px; }

.grid { display: grid; gap: 16px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
@media (max-width: 720px) { .grid-3, .grid-2 { grid-template-columns: 1fr; } }

.card {
  background: linear-gradient(180deg, var(--card), var(--bg-soft));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
  box-shadow: var(--shadow);
}
.card h3 { margin: 0 0 12px; font-size: 15px; }

.stat .etiqueta { color: var(--muted); font-size: 13px; font-weight: 600; text-transform: uppercase; letter-spacing: .5px; }
.stat .valor { font-size: 28px; font-weight: 800; margin-top: 6px; }
.valor.ok { color: var(--ok); }
.valor.bad { color: var(--bad); }
.valor.warn { color: var(--warn); }
.valor.primary { color: #a5b4fc; }

/* ===== Tablas ===== */
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 11px 10px; border-bottom: 1px solid var(--border); font-size: 14px; }
th { color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: .5px; }
tr:last-child td { border-bottom: none; }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; }

/* ===== Badges ===== */
.badge { display: inline-block; padding: 3px 10px; border-radius: 999px; font-size: 12px; font-weight: 700; }
.badge.ingreso, .badge.abono, .badge.activa { background: var(--ok-soft); color: var(--ok); }
.badge.egreso, .badge.aumento { background: var(--bad-soft); color: var(--bad); }
.badge.pagada { background: var(--warn-soft); color: var(--warn); }

/* ===== Formularios ===== */
.form-grid { display: grid; gap: 14px; }
label { display: block; font-size: 13px; font-weight: 600; color: var(--muted); margin-bottom: 6px; }
input, select, textarea {
  width: 100%; padding: 11px 12px; border-radius: 10px;
  border: 1px solid var(--border); background: var(--bg); color: var(--text);
  font-size: 15px; font-family: inherit;
}
input:focus, select:focus, textarea:focus { outline: 2px solid var(--primary); border-color: var(--primary); }
.fila { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
@media (max-width: 560px) { .fila { grid-template-columns: 1fr; } }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 11px 18px; border-radius: 10px; border: none; cursor: pointer;
  background: var(--primary); color: #fff; font-weight: 700; font-size: 15px;
  font-family: inherit; transition: background .15s;
}
.btn:hover { background: var(--primary-d); text-decoration: none; }
.btn.full { width: 100%; }
.btn.ok { background: var(--ok); }
.btn.ok:hover { background: #16a34a; }
.btn.bad { background: var(--bad); }
.btn.bad:hover { background: #dc2626; }
.btn.ghost { background: transparent; border: 1px solid var(--border); color: var(--text); }
.btn.ghost:hover { background: var(--card-2); }
.btn.sm { padding: 7px 12px; font-size: 13px; }

/* ===== Mensajes flash ===== */
.flash { padding: 12px 16px; border-radius: 10px; margin-bottom: 14px; font-weight: 600; font-size: 14px; }
.flash.ok { background: var(--ok-soft); color: var(--ok); border: 1px solid rgba(34,197,94,.3); }
.flash.error { background: var(--bad-soft); color: var(--bad); border: 1px solid rgba(239,68,68,.3); }
.flash.info { background: rgba(99,102,241,.12); color: #a5b4fc; border: 1px solid rgba(99,102,241,.3); }

/* ===== Auth (login/registro) ===== */
.auth-wrap { min-height: 100vh; display: grid; place-items: center; padding: 24px; }
.auth-card { width: 100%; max-width: 400px; }
.auth-card h1 { text-align: center; margin: 0 0 4px; }
.auth-card .subtitulo { text-align: center; }
.auth-foot { text-align: center; margin-top: 16px; color: var(--muted); font-size: 14px; }

/* ===== Varios ===== */
.vacio { text-align: center; color: var(--muted); padding: 32px 16px; }
.barra-progreso { height: 8px; background: var(--bg); border-radius: 999px; overflow: hidden; margin-top: 10px; }
.barra-progreso > span { display: block; height: 100%; background: var(--ok); }
.cabecera-seccion { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; margin: 28px 0 14px; }
.cabecera-seccion h1 { margin: 0; }
.muted { color: var(--muted); }
.mt { margin-top: 18px; }
.right { text-align: right; }

/* ===== Scroll horizontal de tablas (clave en móvil) ===== */
.tabla-scroll {
  width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;   /* scroll suave en iOS */
  overscroll-behavior-x: contain;
}
.tabla-scroll table { min-width: 540px; } /* fuerza el scroll en vez de aplastar */

/* Barrita de scroll visible y discreta */
.tabla-scroll::-webkit-scrollbar { height: 8px; }
.tabla-scroll::-webkit-scrollbar-track { background: transparent; }
.tabla-scroll::-webkit-scrollbar-thumb { background: var(--border); border-radius: 999px; }
.tabla-scroll { scrollbar-width: thin; scrollbar-color: var(--border) transparent; }

/* Pista visual: "desliza →" solo cuando hay overflow en pantallas chicas */
@media (max-width: 600px) {
  .tabla-scroll { position: relative; }
  .tabla-scroll table { min-width: 520px; }
}

/* ===== Ajustes para móvil ===== */
@media (max-width: 600px) {
  .contenedor { padding: 0 12px 48px; }
  .card { padding: 14px; }

  /* La barra superior se acomoda en dos filas */
  .barra-inner { flex-wrap: wrap; gap: 10px; padding: 10px 14px; }
  nav.menu { width: 100%; margin-left: 0; justify-content: flex-start; }
  nav.menu a { padding: 7px 10px; font-size: 13px; }
  .usuario-chip { order: 5; }

  h1 { font-size: 20px; margin: 22px 0 4px; }
  .stat .valor { font-size: 23px; }
  .valor[style*="font-size:28px"], .valor[style*="font-size:24px"] { font-size: 22px !important; }

  /* Tablas más compactas dentro del scroll */
  th, td { padding: 9px 8px; font-size: 13px; }

  .cabecera-seccion { margin: 22px 0 12px; }
  .cabecera-seccion nav.menu { width: auto; }
}