body {
    font-family: system-ui, sans-serif;
    background: linear-gradient(135deg,#ff4e50,#f9d423);
    margin: 0;
    padding: 15px;
}

h2 {
    text-align: center;
    color: #272424;
}

.usuarios select {
    width: 100%;
    padding: 10px;
    border-radius: 10px;
    border: none;
    margin-bottom: 15px;
}

.nuevo, .tiendas {
    background: #fff;
    border-radius: 15px;
    padding: 15px;
    margin-bottom: 15px;
    box-shadow: 0 5px 15px rgba(0,0,0,.15);
}

.nuevo input {
    width: 100%;
    padding: 5px;
    margin-bottom: 8px;
    border-radius: 8px;
    border: 1px solid #ddd;
}

button {
    border: none;
    border-radius: 8px;
    padding: 10px;
    margin-top: 5px;
    cursor: pointer;
}

.agregar {
    background: #4caf50;
    color: #fff;
}

.buscar input {
    width: 100%;
    padding: 10px;
    border-radius: 10px;
    border: none;
    margin-bottom: 15px;
}

.productos {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 0;
    border-bottom: 1px solid #eee;
}

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

.comprado {
    text-decoration: line-through;
    color: #aaa;
}

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

.btn {
    text-decoration: none;
    background: #5aca76;
    color: #fff;
    padding: 6px 10px;
    border-radius: 6px;
}

.borrar {
    background: #fc0602;
}
@media (max-width:480px){
    .producto { flex-direction: column; align-items: flex-start; gap:6px; }
    .producto button { width: 100%; }
}