:root {
  --verde: #1f6f4a;
  --verde-claro: #e3f1ea;
  --fondo: #f6f7f5;
  --tarjeta: #ffffff;
  --texto: #1d2420;
  --suave: #5f6b64;
  --borde: #dde2de;
  --rojo: #b3261e;
  --ambar: #8a5a00;
  --ambar-fondo: #fff4d6;
  --radio: 12px;
  font-family: system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  font-size: 16px;
  color-scheme: light;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--fondo);
  color: var(--texto);
  padding-bottom: calc(72px + env(safe-area-inset-bottom));
}

.barra {
  position: sticky;
  top: 0;
  z-index: 5;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 16px;
  background: var(--verde);
  color: #fff;
}
.barra h1 { font-size: 1.15rem; margin: 0; }
.barra .icono { color: #fff; background: transparent; border-color: rgba(255, 255, 255, 0.4); }

main { max-width: 760px; margin: 0 auto; padding: 12px 16px; }

h2 { font-size: 1.05rem; margin: 20px 0 8px; }
h3 { font-size: 0.95rem; margin: 16px 0 6px; color: var(--suave); }

button, .boton {
  font: inherit;
  min-height: 44px;
  padding: 8px 14px;
  border-radius: var(--radio);
  border: 1px solid var(--borde);
  background: var(--tarjeta);
  color: var(--texto);
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}
button:disabled { opacity: 0.45; cursor: default; }
.primario { background: var(--verde); border-color: var(--verde); color: #fff; font-weight: 600; }
.secundario { background: var(--verde-claro); border-color: var(--verde-claro); color: var(--verde); font-weight: 600; }
.grande { min-height: 52px; font-size: 1.1rem; padding: 8px 24px; }
.icono { min-width: 44px; padding: 0; font-size: 1.2rem; }

input, select, textarea {
  font: inherit;
  width: 100%;
  min-height: 44px;
  padding: 8px 12px;
  border: 1px solid var(--borde);
  border-radius: var(--radio);
  background: #fff;
  color: var(--texto);
}
input[type='checkbox'] { width: 22px; min-height: 22px; accent-color: var(--verde); }

.herramientas { display: flex; gap: 8px; align-items: center; margin-bottom: 10px; flex-wrap: wrap; }
.herramientas input[type='search'] { flex: 1; min-width: 0; }
.herramientas > .primario { margin-left: auto; }

.check { display: flex; align-items: center; gap: 8px; }

.lista { list-style: none; margin: 0 0 12px; padding: 0; }
.lista > li + li { margin-top: 6px; }
.fila {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 4px 10px;
  align-items: center;
  padding: 10px 12px;
  background: var(--tarjeta);
  border: 1px solid var(--borde);
  border-radius: var(--radio);
}
.fila.bajo { border-color: #f0c36d; background: var(--ambar-fondo); }
.fila-texto { display: flex; flex-direction: column; min-width: 0; }
.fila-texto strong { overflow-wrap: anywhere; }
.fila-texto small { color: var(--suave); overflow-wrap: anywhere; }
.fila-dato { font-weight: 600; text-align: right; font-variant-numeric: tabular-nums; }
.fila-acciones { grid-column: 1 / -1; display: flex; gap: 6px; justify-content: flex-end; }
.fila-acciones button { min-height: 36px; min-width: 40px; padding: 4px 10px; }
.vacio { color: var(--suave); padding: 16px 4px; text-align: center; }

.resultado {
  width: 100%;
  justify-content: space-between;
  text-align: left;
}
.resultados { margin-top: -4px; }

.botones-rapidos {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(96px, 1fr));
  gap: 8px;
  margin-bottom: 12px;
}
.rapido {
  flex-direction: column;
  min-height: 64px;
  background: var(--verde-claro);
  border-color: transparent;
  font-weight: 600;
  line-height: 1.2;
}
.rapido small { font-weight: 400; color: var(--suave); }

.pie-venta {
  position: sticky;
  bottom: calc(68px + env(safe-area-inset-bottom));
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 12px;
  margin-top: 8px;
  background: var(--tarjeta);
  border: 1px solid var(--borde);
  border-radius: var(--radio);
  box-shadow: 0 -2px 12px rgba(0, 0, 0, 0.06);
}
.total { font-size: 1.05rem; color: var(--suave); }
.total span, .total strong { font-size: 1.5rem; font-weight: 700; color: var(--texto); font-variant-numeric: tabular-nums; }

.pestanas {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 5;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  background: var(--tarjeta);
  border-top: 1px solid var(--borde);
  padding-bottom: env(safe-area-inset-bottom);
}
.pestanas a {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  padding: 8px 2px;
  font-size: 0.75rem;
  color: var(--suave);
  text-decoration: none;
}
.pestanas a span { font-size: 1.3rem; }
.pestanas a.activa { color: var(--verde); font-weight: 700; }

.ventana {
  width: min(520px, calc(100vw - 24px));
  max-height: calc(100vh - 24px);
  padding: 0;
  border: none;
  border-radius: 16px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.25);
}
.ventana::backdrop { background: rgba(0, 0, 0, 0.4); }
.ventana > header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--borde);
  position: sticky;
  top: 0;
  background: #fff;
}
.ventana h2 { margin: 0; font-size: 1.05rem; }
.ventana > div, .ventana > form { padding: 16px; }

.formulario { display: flex; flex-direction: column; gap: 12px; }
.formulario label:not(.check) { display: flex; flex-direction: column; gap: 4px; font-size: 0.9rem; color: var(--suave); }

.total-grande { font-size: 2rem; font-weight: 700; text-align: center; margin: 4px 0; }
.vuelto { font-size: 1.3rem; font-weight: 700; text-align: center; color: var(--verde); margin: 0; min-height: 1.6em; }
.rapidos { display: flex; gap: 8px; }
.rapidos button { flex: 1; }

.tarjeta {
  background: var(--tarjeta);
  border: 1px solid var(--borde);
  border-radius: var(--radio);
  padding: 8px 14px;
  margin-bottom: 12px;
}
.resumen-fila {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 8px 0;
  font-variant-numeric: tabular-nums;
}
.resumen-fila + .resumen-fila { border-top: 1px dashed var(--borde); }
.resumen-fila.destacado { font-weight: 700; font-size: 1.1rem; }
.resumen { font-weight: 600; }
.acciones { display: flex; flex-wrap: wrap; gap: 8px; }

.positivo { color: var(--verde); }
.negativo { color: var(--rojo); }
.alerta { color: var(--ambar); }
.ayuda { color: var(--suave); font-size: 0.9rem; }

.escaner { display: flex; flex-direction: column; gap: 8px; }
.video-escaner { width: 100%; border-radius: var(--radio); background: #000; aspect-ratio: 4 / 3; object-fit: cover; }

.aviso {
  position: fixed;
  left: 50%;
  bottom: calc(150px + env(safe-area-inset-bottom));
  transform: translateX(-50%);
  z-index: 50;
  width: max-content;
  max-width: calc(100vw - 32px);
  padding: 12px 16px;
  border-radius: var(--radio);
  background: #1d2420;
  color: #fff;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.25);
}
.aviso-error { background: var(--rojo); }
.aviso-alerta { background: var(--ambar-fondo); color: var(--ambar); border: 1px solid #f0c36d; }