:root {
  --azul: #9c6b32;
  --azul-oscuro: #6f4a20;
  --verde: #6b8e4e;
  --rojo: #b33f30;
  --gris: #7a756b;
  --fondo: #f3efe8;
  --tarjeta: #fffdf9;
  --borde: #e3dccd;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--fondo);
  font-family: "Segoe UI", Arial, sans-serif;
  color: #1f2933;
  font-size: 19px;
}

.contenedor {
  max-width: 480px;
  margin: 0 auto;
  padding: 20px 16px 60px;
}

header.app-header {
  background: var(--azul-oscuro);
  color: white;
  padding: 18px 16px;
  text-align: center;
}

header.app-header h1 {
  margin: 0;
  font-size: 1.5rem;
}

header.app-header p {
  margin: 4px 0 0;
  font-size: 1rem;
  opacity: 0.9;
}

nav.volver {
  padding: 14px 16px 0;
  max-width: 480px;
  margin: 0 auto;
}

nav.volver a {
  color: var(--azul);
  text-decoration: none;
  font-size: 1.05rem;
  font-weight: 600;
}

h2 {
  font-size: 1.3rem;
  color: var(--azul-oscuro);
}

.tarjeta {
  background: var(--tarjeta);
  border: 1px solid var(--borde);
  border-radius: 14px;
  padding: 18px;
  margin-bottom: 18px;
  box-shadow: 0 2px 6px rgba(15, 76, 129, 0.06);
}

.boton-grande {
  display: block;
  width: 100%;
  padding: 22px 16px;
  font-size: 1.25rem;
  font-weight: 700;
  border-radius: 16px;
  border: none;
  color: white;
  background: var(--azul);
  text-align: center;
  text-decoration: none;
  margin-bottom: 16px;
  cursor: pointer;
}

.boton-grande.secundario {
  background: var(--verde);
}

.boton-grande.suave {
  background: white;
  color: var(--azul-oscuro);
  border: 2px solid var(--azul);
}

.boton-grande:active { opacity: 0.85; }

label {
  display: block;
  font-size: 1.1rem;
  font-weight: 600;
  margin: 16px 0 6px;
}

input, select, textarea {
  width: 100%;
  font-size: 1.15rem;
  padding: 14px;
  border-radius: 10px;
  border: 1.5px solid var(--borde);
  background: white;
}

.socios-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 6px;
}

.socio-btn {
  padding: 20px 10px;
  font-size: 1.15rem;
  font-weight: 700;
  border-radius: 14px;
  border: 2px solid var(--azul);
  background: white;
  color: var(--azul-oscuro);
  cursor: pointer;
}

.socio-btn.activo {
  background: var(--azul);
  color: white;
}

.fila {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 0;
  border-bottom: 1px solid var(--borde);
  font-size: 1.05rem;
}

.fila:last-child { border-bottom: none; }

.monto { font-weight: 700; }
.positivo { color: var(--verde); }
.negativo { color: var(--rojo); }

.mensaje {
  text-align: center;
  padding: 16px;
  border-radius: 12px;
  font-weight: 600;
  margin: 16px 0;
}

.mensaje.exito { background: #e3f6e8; color: #1f9d55; }
.mensaje.error { background: #fbe6e4; color: #c0392b; }

.selector-mes {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.selector-mes button {
  font-size: 1.4rem;
  background: white;
  border: 1.5px solid var(--borde);
  border-radius: 10px;
  padding: 6px 16px;
  cursor: pointer;
}

.cargando { text-align: center; color: var(--gris); padding: 20px; }

table.detalle {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
}
table.detalle th, table.detalle td {
  text-align: left;
  padding: 8px 6px;
  border-bottom: 1px solid var(--borde);
}

.barra-fila { margin-bottom: 14px; }

.barra-header {
  display: flex;
  justify-content: space-between;
  font-size: 0.95rem;
  margin-bottom: 4px;
}

.barra-fondo {
  background: #eef3f7;
  border-radius: 8px;
  height: 14px;
  overflow: hidden;
}

.barra-relleno {
  background: var(--azul);
  height: 100%;
  border-radius: 8px;
}

.btn-borrar {
  background: none;
  border: none;
  font-size: 1.1rem;
  cursor: pointer;
  padding: 4px 8px;
}

.link-vista {
  display: inline-block;
  margin-bottom: 10px;
  font-size: 1rem;
  color: var(--azul);
  text-decoration: none;
  font-weight: 600;
}