#mainNav {
        min-height: 56px;
        background-color: rgba(255, 255, 255, 0);
        ;
    }
    
    #mainNav .navbar-toggler {
        font-size: 80%;
        padding: 0.75rem;
        background-color: rgba(255, 255, 255, 0);
        border: 1px solid rgba(255, 255, 255, 0);
    }
    
    #mainNav .navbar-toggler:focus {
        outline: none;
    }
    
    #mainNav .navbar-brand {
        color: #161616;
        font-weight: 700;
        padding: .9rem 0;
    }
    
    #mainNav .navbar-nav .nav-item:hover {
        color: fade(#001e3a, 80%);
        outline: none;
        background-color: transparent;
    }
    
    #mainNav .navbar-nav .nav-item:active,
    #mainNav .navbar-nav .nav-item:focus {
        outline: none;
        background-color: transparent;
    }
    
    @media (min-width: 992px) {
        #mainNav {
            padding-top: 0;
            padding-bottom: 0;
            border-bottom: none;
            background-color: transparent;
            transition: background-color 0.3s ease-in-out;
        }
        #mainNav .navbar-brand {
            padding: .5rem 0;
            color: rgba(255, 255, 255, 0.5);
        }
        #mainNav .nav-link {
            transition: none;
            padding: 2rem 1.5rem;
            color: rgba(255, 255, 255, 0.5);
        }
        #mainNav .nav-link:hover {
            color: rgba(255, 255, 255, 0.75);
        }
        #mainNav .nav-link:active {
            color: rgba(255, 255, 255, 0);
        }
        #mainNav.navbar-shrink {
            background-color: rgba(255, 255, 255, 0);
        }
        #mainNav.navbar-shrink .navbar-brand {
            color: #161616;
        }
        #mainNav.navbar-shrink .nav-link {
            color: #161616;
            padding: 1.5rem 1.5rem 1.25rem;
            border-bottom: 0.25rem solid transparent;
        }
        #mainNav.navbar-shrink .nav-link:hover {
            color: #001e3a;
        }
        #mainNav.navbar-shrink .nav-link:active {
            color: #001e3a;
        }
        #mainNav.navbar-shrink .nav-link.active {
            color: #161616;
            outline: none;
            border-bottom: 0.25rem solid #161616;
        }
    }
    
    .masthead {
        position: relative;
        width: 100%;
        height: auto;
        min-height: 35rem;
        padding: 15rem 0;
        background: linear-gradient(to bottom, rgba(22, 22, 22, 0.3) 0%, rgba(22, 22, 22, 0.7) 75%, #161616 100%), url("../img/background.png");
        background-position: center;
        background-repeat: no-repeat;
        background-attachment: scroll;
        background-size: cover;
    }
    
    .masthead h1 {
        font-family: 'Varela Round';
        font-size: 2.5rem;
        line-height: 2.5rem;
        letter-spacing: 0.8rem;
        background: -webkit-linear-gradient(rgba(255, 255, 255, 0.9), rgba(22, 22, 22, 0.9));
        -webkit-text-fill-color: transparent;
        -webkit-background-clip: text;
    }
    
    .masthead h2 {
        max-width: 20rem;
        font-size: 1rem;
    }
    
    @media (min-width: 768px) {
        .masthead h1 {
            font-size: 4rem;
            line-height: 4rem;
        }
    }
    
    @media (min-width: 992px) {
        .masthead {
            height: 100vh;
            padding: 0;
        }
        .masthead h1 {
            font-size: 6.5rem;
            line-height: 6.5rem;
            letter-spacing: 0.8rem;
        }
        .masthead h2 {
            max-width: 30rem;
            font-size: 1.25rem;
        }
    }
    
    .btn {
        box-shadow: 0 0.1875rem 0.1875rem 0 rgba(0, 0, 0, 0.1) !important;
        font-family: 'Varela Round';
        font-size: 80%;
        text-transform: uppercase;
        letter-spacing: .15rem;
        border: 0;
    }
    
    .btn-primary {
        background-color: #161616;
    }
    
    .btn-primary:hover {
        background-color: #001e3a;
    }
    
    .btn-primary:focus {
        background-color: #001e3a;
        color: white;
    }
    
    .btn-primary:active {
        background-color: #001e3a !important;
    }
    
    .about-section {
        padding-top: 5rem;
        padding-bottom: 5rem;
        background: linear-gradient(to top, rgba(22, 22, 22, 0.3) 0%, rgba(22, 22, 22, 0.7) 75%, #161616 100%), linear-gradient(to bottom, rgba(22, 22, 22, 0.3) 0%, rgba(22, 22, 22, 0.7) 75%, #161616 100%), url("../img/background_city.png");
    }
    
    .about-section p {
        margin-bottom: 3rem;
    }
    
    .projects-section {
        padding: 10rem 0;
    }
    
    .projects-section .featured-text {
        padding: 2rem;
    }
    
    @media (min-width: 992px) {
        .projects-section .featured-text {
            padding: 0 0 0 2rem;
            border-left: 0.5rem solid #646464;
        }
    }
    
    .projects-section .featured-text-right {
        padding: 2rem;
    }
    
    @media (min-width: 992px) {
        .projects-section .featured-text-right {
            padding: 0 2rem 0 0;
            border-right: 0.5rem solid #646464;
        }
    }
    
    .projects-section .project-text {
        padding: 3rem;
        font-size: 90%;
    }
    
    @media (min-width: 992px) {
        .projects-section .project-text {
            padding: 5rem;
        }
        .projects-section .project-text hr {
            border-color: #646464;
            border-width: .25rem;
            width: 30%;
        }
    }
    
    hr {
        border-color: #646464;
        border-width: .25rem;
        width: 30%;
    }
    
    .signup-section {
        padding: 10rem 0;
        background: linear-gradient(to bottom, rgba(22, 22, 22, 0.1) 0%, rgba(22, 22, 22, 0.5) 75%, #161616 100%), url("../img/bg-signup.jpg");
        background-position: center;
        background-repeat: no-repeat;
        background-attachment: scroll;
        background-size: cover;
    }
    
    .signup-section .form-inline input {
        box-shadow: 0 0.1875rem 0.1875rem 0 rgba(0, 0, 0, 0.1) !important;
        padding: 1.25rem 2rem;
        height: auto;
        font-family: 'Varela Round';
        font-size: 80%;
        text-transform: uppercase;
        letter-spacing: 0.15rem;
        border: 0;
    }
    
    .contact-section {
        padding: 5rem 0 0;
    }
    
    .contact-section .card {
        border: 0;
        border-bottom: 0.25rem solid #646464;
    }
    
    .contact-section .card h4 {
        font-size: 0.8rem;
        font-family: 'Varela Round';
        text-transform: uppercase;
        letter-spacing: 0.15rem;
    }
    
    .contact-section .card hr {
        border-color: #161616;
        border-width: 0.25rem;
        width: 3rem;
    }
    
    .contact-section .social {
        margin-top: 5rem;
    }
    
    .contact-section .social a {
        text-align: center;
        height: 3rem;
        width: 3rem;
        background: rgba(255, 255, 255, 0.1);
        border-radius: 100%;
        line-height: 3rem;
        color: rgba(255, 255, 255, 0.3);
    }
    
    .contact-section .social a:hover {
        color: rgba(255, 255, 255, 0.5);
    }
    
    .contact-section .social a:active {
        color: #161616;
    }
    
    body {
        font-family: 'Nunito';
        letter-spacing: 0.0625em;
    }
    
    a {
        color: #646464;
    }
    
    a:focus,
    a:hover {
        text-decoration: none;
        color: #fff;
    }
    
    .bg-black {
        background-color: #161616 !important;
    }
    
    .bg-primary {
        background-color: #161616 !important;
    }
    
    .text-primary {
        color: #161616 !important;
    }
    
    footer {
        padding: 5rem 0;
    }
    
    .logo {
        max-width: 50%;
        max-height: auto;
    }
    
    .logotipo {
        opacity: 0.5;
        margin-bottom: 5%;
    }
    
    .noselect {
        -webkit-touch-callout: none;
        /* iOS Safari */
        -webkit-user-select: none;
        /* Safari */
        -khtml-user-select: none;
        /* Konqueror HTML */
        -moz-user-select: none;
        /* Old versions of Firefox */
        -ms-user-select: none;
        /* Internet Explorer/Edge */
        user-select: none;
        /* Non-prefixed version, currently
                                    supported by Chrome, Opera and Firefox */
    }
    
    .bg-dark {
        background-color: #161616 !important;
    }
    
    .text-white-30 {
        color: rgba(255, 255, 255, 0.3) !important;
    }
    
    .collapsing {
        position: relative;
        height: 0;
        overflow: hidden;
        transition-timing-function: ease;
        transition-duration: .35s;
        transition-property: height;
    }