:root {
  --negro: #0d0d0d; --negro2: #1a1a1a; --oro: #d4af37; --oro2: #b8952b; --oro-suave: #f6edd0;
  --fondo: #f7f4ec; --tarjeta: #fff; --texto: #1d1d1d; --gris: #6f6a5f; --borde: #e6dfcc;
  --ok: #1f7a3d; --ok-suave: #e3f3e8; --mal: #b3261e; --mal-suave: #fbe4e2; --alerta: #8a5a00; --alerta-suave: #fdf1d6;
  --r: 12px;
}
* { box-sizing: border-box; }
html, body { margin: 0; }
body { background: var(--fondo); color: var(--texto); font: 16px/1.4 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
button, input, select, textarea { font: inherit; }
.cargando { display: grid; place-items: center; height: 100vh; color: var(--oro); background: var(--negro); font-weight: 800; letter-spacing: .2em; }

/* ---------- Iniciar sesión ---------- */
.login { min-height: 100vh; display: grid; place-items: center; background: radial-gradient(circle at 30% 20%, #2a2410, var(--negro) 60%); padding: 16px; }
.login form { width: min(380px, 100%); background: var(--negro2); border: 1px solid #333; border-radius: 16px; padding: 28px 24px; color: #eee; }
.marca { font-weight: 900; letter-spacing: .18em; color: var(--oro); font-size: 26px; text-align: center; }
.marca small { display: block; letter-spacing: .1em; color: #999; font-size: 12px; font-weight: 500; margin-top: 4px; }
.login label { display: block; margin: 16px 0 6px; font-size: 14px; color: #bbb; }
.login input { width: 100%; padding: 12px; border-radius: 10px; border: 1px solid #444; background: #111; color: #fff; }
.login input:focus { outline: 2px solid var(--oro); border-color: transparent; }
.login .btn { width: 100%; margin-top: 22px; }
.login .error { margin-top: 14px; }

/* ---------- Estructura ---------- */
.marco { display: grid; grid-template-columns: 220px 1fr; min-height: 100vh; }
.lateral { background: var(--negro); color: #ddd; padding: 20px 14px; display: flex; flex-direction: column; gap: 6px; position: sticky; top: 0; height: 100vh; }
.lateral .marca { font-size: 20px; text-align: left; padding: 0 8px 14px; border-bottom: 1px solid #2a2a2a; margin-bottom: 10px; }
.lateral a { display: flex; align-items: center; gap: 10px; padding: 11px 12px; border-radius: 10px; color: #ddd; text-decoration: none; font-weight: 600; }
.lateral a:hover { background: #1f1f1f; }
.lateral a.activo { background: var(--oro); color: var(--negro); }
.lateral .quien { margin-top: auto; font-size: 13px; color: #999; padding: 10px 8px; border-top: 1px solid #2a2a2a; }
.lateral .quien b { color: #eee; display: block; }
.lateral .quien button { margin-top: 8px; background: none; border: 1px solid #444; color: #ccc; border-radius: 8px; padding: 6px 10px; cursor: pointer; }
main { padding: 22px; max-width: 1200px; width: 100%; }
h1 { margin: 0 0 16px; font-size: 24px; }
h2 { margin: 0 0 10px; font-size: 17px; }

@media (max-width: 760px) {
  .marco { grid-template-columns: 1fr; }
  .lateral { position: fixed; bottom: 0; top: auto; left: 0; right: 0; height: auto; flex-direction: row; justify-content: space-around; padding: 6px; z-index: 20; }
  .lateral .marca, .lateral .quien { display: none; }
  .lateral a { flex-direction: column; gap: 2px; font-size: 12px; padding: 8px 10px; }
  main { padding: 14px 16px 90px; }
}

/* ---------- Piezas ---------- */
.tarjeta { background: var(--tarjeta); border: 1px solid var(--borde); border-radius: var(--r); padding: 16px; }
.btn { border: 0; border-radius: 10px; padding: 12px 18px; font-weight: 700; cursor: pointer; background: var(--oro); color: var(--negro); }
.btn:hover { background: var(--oro2); }
.btn:disabled { opacity: .55; cursor: wait; }
.btn.negro { background: var(--negro); color: var(--oro); }
.btn.claro { background: #fff; color: var(--texto); border: 1px solid var(--borde); }
.btn.peligro { background: var(--mal); color: #fff; }
.btn.chico { padding: 7px 12px; font-size: 14px; }
.btn.grande { width: 100%; padding: 16px; font-size: 18px; }
.campo { display: block; margin-bottom: 12px; }
.campo span { display: block; font-size: 13px; color: var(--gris); margin-bottom: 4px; font-weight: 600; }
.campo input, .campo textarea, .campo select { width: 100%; padding: 11px 12px; border: 1px solid var(--borde); border-radius: 10px; background: #fff; }
.campo input:focus, .campo textarea:focus { outline: 2px solid var(--oro); border-color: transparent; }
.error, .ok, .alerta { border-radius: 10px; padding: 11px 13px; font-weight: 600; }
.error { background: var(--mal-suave); color: var(--mal); }
.ok { background: var(--ok-suave); color: var(--ok); }
.alerta { background: var(--alerta-suave); color: var(--alerta); }
.gris { color: var(--gris); }
.fila { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.dinero { font-variant-numeric: tabular-nums; font-weight: 700; }

/* ---------- Cobrar ---------- */
.cobrar { display: grid; grid-template-columns: 1fr 370px; gap: 18px; align-items: start; }
@media (max-width: 980px) { .cobrar { grid-template-columns: 1fr; } }
.buscador { position: relative; }
.resultados { position: absolute; left: 0; right: 0; top: 100%; background: #fff; border: 1px solid var(--borde); border-radius: 10px; z-index: 10; max-height: 300px; overflow: auto; box-shadow: 0 8px 24px #0002; }
.resultados button { display: block; width: 100%; text-align: left; padding: 10px 12px; border: 0; background: none; cursor: pointer; border-bottom: 1px solid #f0ebdd; }
.resultados button:hover { background: var(--oro-suave); }
.cliente-elegido { display: flex; justify-content: space-between; align-items: center; gap: 10px; background: var(--negro); color: #fff; border-radius: 10px; padding: 10px 14px; }
.cliente-elegido small { color: #bbb; display: block; }
.tabs { display: flex; gap: 6px; margin: 16px 0 10px; }
.tabs button { border: 1px solid var(--borde); background: #fff; border-radius: 999px; padding: 7px 14px; font-weight: 600; cursor: pointer; }
.tabs button.activo { background: var(--negro); color: var(--oro); border-color: var(--negro); }
.mosaico { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 10px; }
.item { text-align: left; background: #fff; border: 1px solid var(--borde); border-radius: 12px; padding: 12px; cursor: pointer; display: flex; flex-direction: column; gap: 6px; min-height: 84px; }
.item:hover { border-color: var(--oro); box-shadow: 0 0 0 2px var(--oro-suave); }
.item b { font-size: 14px; }
.item .dinero { color: var(--oro2); margin-top: auto; }
.item.agotado { opacity: .45; cursor: not-allowed; }
.item .opciones { display: flex; gap: 4px; flex-wrap: wrap; margin-top: auto; }
.item .opciones button { border: 1px solid var(--oro); background: var(--oro-suave); border-radius: 8px; padding: 4px 7px; font-size: 12px; cursor: pointer; font-weight: 600; }
.cuenta { position: sticky; top: 16px; }
.lineas { list-style: none; margin: 0 0 12px; padding: 0; }
.lineas li { display: grid; grid-template-columns: 1fr auto auto; gap: 8px; align-items: center; padding: 8px 0; border-bottom: 1px dashed var(--borde); }
.lineas input[type=number] { width: 56px; padding: 6px; border: 1px solid var(--borde); border-radius: 8px; text-align: center; }
.lineas .marca-abono { grid-column: 1 / -1; font-size: 13px; color: var(--gris); }
.total { display: flex; justify-content: space-between; font-size: 22px; font-weight: 800; padding: 8px 0 12px; }
.formas { display: grid; grid-template-columns: repeat(3, 1fr); gap: 6px; margin-bottom: 12px; }
.formas button { border: 1px solid var(--borde); background: #fff; border-radius: 10px; padding: 9px 4px; font-size: 13px; font-weight: 700; cursor: pointer; }
.formas button.activo { background: var(--oro); border-color: var(--oro); }

/* ---------- Caja ---------- */
.cajas { display: grid; grid-template-columns: repeat(auto-fill, minmax(290px, 1fr)); gap: 14px; }
.caja-cab { display: flex; justify-content: space-between; align-items: center; margin-bottom: 10px; }
.estado { font-size: 12px; font-weight: 800; padding: 3px 9px; border-radius: 999px; }
.estado.abierta { background: var(--ok-suave); color: var(--ok); }
.estado.cerrada { background: #eee; color: #666; }
.cuadre { width: 100%; border-collapse: collapse; font-size: 14px; margin-bottom: 12px; }
.cuadre td { padding: 4px 0; }
.cuadre td:last-child { text-align: right; font-variant-numeric: tabular-nums; }
.cuadre tr.fuerte td { font-weight: 800; border-top: 1px solid var(--borde); padding-top: 7px; font-size: 16px; }

/* ---------- Ventana ---------- */
.velo { position: fixed; inset: 0; background: #000a; display: grid; place-items: center; z-index: 50; padding: 16px; }
.ventana { background: #fff; border-radius: 16px; padding: 20px; width: min(440px, 100%); max-height: 90vh; overflow: auto; }
.ventana h2 { margin-bottom: 12px; }
.ventana .acciones { display: grid; gap: 8px; margin-top: 14px; }

#aviso { position: fixed; left: 50%; bottom: 24px; transform: translateX(-50%); z-index: 60; }
#aviso div { background: var(--negro); color: #fff; border-left: 5px solid var(--oro); padding: 12px 18px; border-radius: 10px; box-shadow: 0 8px 24px #0004; font-weight: 600; margin-top: 8px; }
@media (max-width: 760px) { #aviso { bottom: 84px; width: calc(100% - 32px); } }

/* ---------- Cobros de hoy ---------- */
.hoy { margin-top: 18px; }
.hoy-cab { display: flex; justify-content: space-between; align-items: baseline; gap: 10px; flex-wrap: wrap; margin-bottom: 10px; }
.tabla-hoy { max-height: 420px; overflow: auto; }
.tabla-hoy table { width: 100%; border-collapse: collapse; font-size: 14px; }
.tabla-hoy td { padding: 8px 6px; border-top: 1px solid #f0ebdd; vertical-align: top; }
.tabla-hoy tr.anulado td { opacity: .5; text-decoration: line-through; }
.etiqueta { display: inline-block; margin-top: 3px; font-size: 11px; font-weight: 800; padding: 2px 7px; border-radius: 999px; text-decoration: none; }
.etiqueta.ok { background: var(--ok-suave); color: var(--ok); }
.etiqueta.mal { background: var(--mal-suave); color: var(--mal); }
.etiqueta.alerta { background: var(--alerta-suave); color: var(--alerta); }