* {
    margin: 0;
    padding: 0;
    font-family: Arial, Helvetica, sans-serif;
}

body {
    display: flex;
    flex-direction: column;
}

#header {
    display: flex;
    flex-direction: row;
    justify-content: space-between;
    position: fixed;
    width: 100%;
    background-color: rgba(0, 0, 0, 0.295);
}

.logo-text {
    display: flex;
    align-items: center;
    font-size: 2.5em;
}

#header-img {
    width: 80px;
}
#nav-bar {
    width: 400px;
}

#nav-bar ul {
    display: flex;
    justify-content: space-around;
    list-style: none;
}

#nav-bar ul li {
    display: inline-flex;
    flex-direction: column;
    justify-content: center;
    height: 70px;
    cursor: pointer;
}

#nav-bar ul li a{
    display: flex;
    align-items: center;
    height: 100%;
    width: 100%;
    text-decoration: none;
    flex-shrink: 1;
    font-size: 1.2em;
    color: rgba(45, 61, 153, 0.904);
}

main {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-top: 80px;
}

#contacto {
    display: flex;
    flex-direction: column;
    margin-top: 2em;
    margin-bottom: 1em;
    align-items: center;
    font-size: 1.1em;
    color: chocolate;
}

#form {
    display: flex;
    margin-top: 1em;
}

input {
    padding: .5em;
    box-shadow: 0 0 1px rgb(139, 139, 139);
    border: none;
}

#submit {
    background-color: white;
}

section {
    display: flex;
    flex-direction: column;
    align-items: center;
}

#caracteristicas {
    margin-top: 1.5em;
    max-width: 900px;
    width: 100%;
    text-align: justify;
}

#caracteristicas h1 {
    margin-bottom: 1em;
}

#caracteristicas h2 {
    margin-bottom: .5em;
}

#demostracion {
    margin-top: 3em;
    display: flex;
    flex-direction: column;
    align-items: center;
    max-height: 480px;
    max-width: 854px;
    width: 100%;
}

#demostracion h1{
    margin-bottom: 1em;
}

#video {
    width: 100%;
    height: 100vh;
    flex-shrink: 1;
    flex-basis: 1;
    resize: both;
}

#precios {
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    margin-top: 2em;
    margin-bottom: 3em;
    justify-content: center;
}

#precios h2 {
    width: 100%;
    text-align: center;

}

#precios div {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin: 1em;
    box-shadow: 0 0 10px #000;
    padding: .5em;
    max-width: 250px;
    border-radius: 5px;
}

#precios div h4 {
    margin-bottom: .5em;
    color: red;
}

#precios div span {
    color: green;
}

footer {
    display: flex;
    flex-direction: column;
    height: 50px;
    align-items: center;
    justify-content: center;
    background-color: rgba(0, 0, 0, 0.212);
}
footer p {
    max-width: 90%;
    width: 100%;
}

@media screen and (max-width: 750px) {
    #header {
        flex-direction: column;
        align-items: center;
    }
    main {
        margin-top: 150px;
    }

}

@media screen and (max-width: 950px){
    #caracteristicas {
        width: 90%;
    }

}

@media screen and (max-width: 400px){
    #nav-bar {
        width: 90%;
    }
    #nav-bar ul li a {
        font-size: .8em;   
    }
    #nav-bar ul li {

    }

}