style.css

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

html{
    font-size: 6px;
}
.nav-links

body{
    font-family: "Lato",sans-serif;
    font-size: 1.6rem;
    font-weight: 400;
    line-height: 1.5;
    background-color: #fff;
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    font-family: Montserrat;
}

a {
    text-decoration: none;
}

ul{
    list-style: none;
}

section{
    padding-top: 100px;
    padding-bottom: 10rem;
    text-align: center;
}

.btn-large {
    font-size: 2rem;
    padding: 2.2rem 1.6rem;

}

.btn{
    margin-top: 2rem;
    font-weight: 400;
    display: inline-block;
    border: 2px solid #fff;
    border-radius: .4rem;
    cursor: pointer;
    transition: all .5s;
}

.btn-social {
    width: 5rem;
    height: 5rem;
    border-radius: 50%;
    font-size: 2rem;
    line-height: 2rem;
}

.btn-outline {
    color: #fff;
    border-color: #fff;
    background-color: transparent;
}

.btn-outline:hover {
    color: #212529;
    background-color: #fff;
    
}

.btn-primary{
    background-color: #1abc9b;
    border-color: #1abc9b;
    padding: 1.2rem 1rem;
    color: #fff;
}

.btn-primary:hover{
    background-color: #128f76;
    border-color: #128f76;
   
}

.img-fluid {
    max-width: 256px;
    height: auto;
}

.clearfix::after{
    content: "";
    display: block;
    clear: both;
}

.container{
    width: 100%;
    margin-left: auto;
    margin-right: auto;
    padding-left: 0.5rem;
    padding-right: 0.5rem;

}

.col{
    float: left;
    width: 100%;
    padding: 1rem;
    
    
}

@media (min-width:576px) {
    .container{
        max-width: 540px;  
    }

    html{
        font-size: 7px;
    }

   

}

@media (min-width:768px) {

    .container{
        max-width: 720px;
    }  

    html{
        font-size: 8px;
    }
    .col{
        width: 50%;
    }
}

@media (min-width:992px) {
    
    .container {
        max-width: 960px;
    }

    html{
        font-size: 9px;
    }

    .col{
        width: 33.333%;
    }
}

@media (min-width:1200px) {
    .container{
        max-width: 1140;
    }

    html{
        font-size: 10px;
    }
    
}

.text-uppercase {
    text-transform: uppercase;
}

p{
    font-family: Montserrat;
}

/* Navbar */

nav{
    width: 100%;
    font-family: Montserrat;
    background-color: #2c3e4f;
    color: #fff;
    padding-top: 2rem;
    padding-bottom: 2rem;
    position: fixed;
    z-index: 500;

}

#logo-box {
    float: left;
    padding-top: 0.5rem;
}

#logo-box .logo {
    color: #fff;
    font-weight: 700;
    font-size: 2.8rem;
}

.text-uppercase{
    text-transform: uppercase;
}

#nav-links {
    float: right;
}

#nav-links .nav-item {
    float: left;
    margin: 0.5rem;
    
}

#nav-links .nav-link {
    color: #fff;
    font-size: 1.6rem;
    font-weight: 700;
    display: block;
    padding: 1.6rem;
    letter-spacing: 0.1rem;
    transition: color 0.4s;

}

#nav-links .nav-link:hover{
    color: #1abc9b;


}

#nav-links .nav-icon {
    display: none;
}

@media(max-width:992px){
    #logo-box {
        float: none;
        text-align: left;
    }

    #nav-links {
        float: none;
    }

    #nav-links .nav-link{
        font-size: 2rem;
        padding-left: 0;
    }

    #nav-links .nav-item {
        float: none;
        text-align: left;
    }

    #nav-links .nav-icon {
        display: block;
        position: absolute;
        top: 10px;
        right: 5px;
        font-size: 3rem;
    }

    #nav-links.responsive li:not(:first-child){
        display: none;
    }
}

/* Header */

header{
    background-color: #1abc9b;
    height: 700px;
    padding-top: calc(106px + 7rem) ;
    text-align: center;
}

header h1{
    color: #fff;
    font-size: 6rem;

}

header  {
    color: #fff;
    font-size: 2.4rem;
    font-family: "Lato";
    font-weight: 300;
}

hr.star-light {
    border-color: #fff;
}

hr.star-dark {
    border-color: #2d3d4f;
}

.star-light, .star-dark {
    border: none;
    border-top: 0.4rem solid #fff;
    border-radius: 10px;
    max-width: 25rem;
    margin: 2.5rem auto;
    overflow: visible;
    height: 0;
}

.star-light::after {
    color: #fff;
    background-color: #1abc9b;
}

.star-dark::after{
    color: #2d3d4f;
    background-color: #fff;
}


.star-light::after, .star-dark::after{
    content: "\2605";
    font-weight: 900;
    font-size: 3.2rem;
    position: relative;
    top: -28px;
    padding: 0 8px;

}
/* porfolio */

#portfolio {
    padding-top: 100px;
    padding-bottom: 10rem;
    text-align: center;
}

#portfolio h2 {
    font-size: 4.8rem;
    color: #2d3d4f;
}

.img-fluid-p {
    max-width: 100%;
    height: auto;
}


.portfolio-item {
    position: relative;
}

.portfolio-item img {
    display: block;
    border-radius: 13px;
}

.img-overlay {
    position: absolute;
    top: 0;
    left:0;
    height: 100%;
    width: 100%;
    background-color: #1abc9b;
    opacity: 0;
    transition: opacity 0.4s;
}

.img-overlay .icon {
    color: #fff;
    font-size: 8rem;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    
}

.portfolio-item:hover .img-overlay {
    opacity: 0.8;
    border-radius: 13px;

}

/* About */

#about {
    background-color: #1abc9b;
    color: #fff;
}

#about h2 {
    font-size: 4.8rem;
}

#about-text {
    text-align: left;
}

#about-text .left {
    float: none;
    width: 100%;
    padding-right: 5px;
    padding-left: 25px;
}

#about-text .right{
    float: none;
    width: 100%;
    padding-left: 25px;
    padding-right: 5px;
}


#about-text .text {
    font-size: 2rem;
}

@media (min-width: 992px) {
    #about-text .left {
        float: left;
        width: 50%;
        padding-right: 10px;
        padding-left: 210px;
    }

    #aboute-text .right {
        float: right;
        width: 50%;
        padding-right: 210px;
        padding-left: 10px;
    }
}

/* Contact */

#contact h2 {
    font-size: 4.8rem;
    color: #2c3e4f;
}


#contact-form {
    width: 70%;
    margin: 0 auto;
    text-align: left;
}

.form-group{
    border-bottom: 1px solid #e9ecef;
    padding-bottom: 3rem;
    margin-bottom: 4rem;
}

.form-group input, .form-group textarea{
    border: none;
    width: 100%;
    display: block;
    font-size: 2.4rem;
}

.form-group input:focus {
    outline: 0;
}

.form-group textarea:focus {
    outline: 0;
}

/* Footer */

footer{
    padding-top: 6rem;
    padding-bottom: 6rem;
    background-color: #2c3e4f;
    color: #fff;
    text-align: center;
}

footer h4 {
    font-size: 2.4rem;
}

footer p {
    font-size: 2rem;
    margin-top: 1rem;
}

footer li {
    display: inline-block;
    margin-right: 1rem;
}
.copyright {
    background-color: #19262f;
    padding-top: 2.4rem;
    padding-bottom: 2.4rem;
    color: #fff;
    text-align: center;
}

small{
    font-family: Montserrat;    
    
}