:root {
    --color-fondo: #f4f4f4;
    --color-card: #ffffff;
    --color-texto: #222222;
    --color-primario: #333333;
    --color-borde: #cccccc;
    --color-item: #fafafa;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    background: var(--color-fondo);
    color: var(--color-texto);
    font-family: sans-serif;
}

.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
    background: #ddd;
    border-bottom: 1px solid var(--color-borde);
    flex-wrap: wrap;
    gap: 10px;
}

.nav {
    display: flex;
    gap: 10px;
}

.nav a {
    text-decoration: none;
    color: var(--color-primario);
    padding: 4px 8px;
}

.nav a.active {
    font-weight: bold;
    border-bottom: 2px solid var(--color-primario);
}

.btn-logout {
    background: #721c24;
    color: var(--color-card);
    border: none;
    padding: 6px 12px;
    cursor: pointer;
}

.main-container {
    padding: 20px;
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.card {
    background: var(--color-card);
    border: 1px solid var(--color-borde);
    padding: 15px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.form-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 10px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.form-group input {
    padding: 8px;
    border: 1px solid var(--color-borde);
}

.form-acciones {
    display: flex;
    gap: 8px;
}

.btn-primary {
    background: var(--color-primario);
    color: var(--color-card);
    border: none;
    padding: 8px 12px;
    cursor: pointer;
}

.btn-secondary {
    background: #888;
    color: var(--color-card);
    border: none;
    padding: 8px 12px;
    cursor: pointer;
}

.btn-danger {
    background: #c82333;
    color: var(--color-card);
    border: none;
    padding: 4px 8px;
    cursor: pointer;
}

.btn-edit {
    background: #0056b3;
    color: var(--color-card);
    border: none;
    padding: 4px 8px;
    cursor: pointer;
}

.items-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 10px;
    width: 100%;
}

@media (min-width: 768px) {
    .items-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (min-width: 1024px) {
    .items-grid {
        grid-template-columns: 1fr 1fr 1fr;
    }
}

.item-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px;
    background: var(--color-item);
    border: 1px solid var(--color-borde);
    min-width: 0;
}

.item-actions {
    display: flex;
    gap: 6px;
}

.mensaje-alerta {
    display: none;
    padding: 8px;
    font-size: 14px;
}

/* ---- agregados para los formularios de este módulo ---- */

.form-group label {
    font-size: 14px;
    font-weight: bold;
}

.form-group select,
.form-group textarea {
    padding: 8px;
    border: 1px solid var(--color-borde);
    font-family: inherit;
    font-size: 14px;
    background: var(--color-card);
}

.form-group small {
    color: #666;
    font-size: 12px;
}

@media (min-width: 768px) {
    .form-grid.dos-columnas {
        grid-template-columns: 1fr 1fr;
    }
}

.full-width {
    grid-column: 1 / -1;
}

.filtros {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    align-items: flex-end;
}

.filtros .form-group {
    min-width: 160px;
}

.filtros input,
.filtros select {
    padding: 6px;
    border: 1px solid var(--color-borde);
    font-family: inherit;
}

.totales {
    display: grid;
    grid-template-columns: 1fr;
    gap: 10px;
}

@media (min-width: 768px) {
    .totales {
        grid-template-columns: 1fr 1fr 1fr;
    }
}

.total-caja {
    border: 1px solid var(--color-borde);
    background: var(--color-item);
    padding: 10px;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.total-caja span {
    font-size: 12px;
    color: #666;
    text-transform: uppercase;
}

.total-caja strong {
    font-size: 20px;
}

.monto-ingreso { color: #155724; }
.monto-egreso { color: #721c24; }

.btn-primary:disabled,
.btn-edit:disabled,
.btn-danger:disabled {
    background: #aaa;
    cursor: not-allowed;
}

.aviso {
    font-size: 13px;
    padding: 8px;
    background: var(--color-item);
    border: 1px dashed var(--color-borde);
}