            /* start variables */
            
             :root {
                --main-color: #10cab7;
                --secondary-color: #2c4755;
                --section-padding: 60px;
                --section-background: #f6f6f6;
            }
            /* end variables */
            /* start global rules  */
            
            * {
                -webkit-box-sizing: border-box;
                -moz-box-sizing: border-box;
                box-sizing: border-box;
            }
            
            html {
                scroll-behavior: smooth;
            }
            
            body {
                font-family: "work sans", "sans-serif";
            }
            
            .container {
                padding-left: 15px;
                padding-right: 15px;
                margin-left: auto;
                margin-right: auto;
            }
            
            @media (min-width: 768px) {
                .container {
                    width: 750px;
                }
            }
            
            @media (min-width: 992px) {
                .container {
                    width: 970px;
                }
            }
            
            @media (min-width: 1200px) {
                .container {
                    width: 1170px;
                }
            }
            /* end global rules  */
            /* start components */
            
            .special-heading {
                color: #c8d2db;
                font-size: 100px;
                text-align: center;
                font-weight: 800;
                letter-spacing: -3px;
                margin: 0;
            }
            
            .special-heading+p {
                margin: -30px 0 0;
                font-size: 20px;
                text-align: center;
                color: #777;
            }
            
            @media (max-width:767px) {
                .special-heading {
                    font-size: 60px;
                }
                .special-heading+p {
                    margin-top: -20px;
                }
            }
            /* end components */
            /* start header */
            
            .header {
                padding: 20px;
            }
            
            .header .container {
                display: flex;
                justify-content: space-between;
                align-items: center;
            }
            
            .header .logo {
                width: 60px;
            }
            
            .header .links {
                position: relative;
            }
            
            .header .links:hover .icons span:nth-child(2) {
                width: 100%;
            }
            
            .header .links .icons {
                width: 30px;
                display: flex;
                flex-wrap: wrap;
                justify-content: flex-end;
            }
            
            .header .links .icons span {
                background-color: #777;
                margin-bottom: 5px;
                height: 2px;
            }
            
            .header .links .icons span:first-child {
                width: 100%;
            }
            
            .header .links .icons span:nth-child(2) {
                width: 60%;
                transition: 0.3s;
                -webkit-transition: 0.3s;
                -moz-transition: 0.3s;
                -ms-transition: 0.3s;
                -o-transition: 0.3s;
            }
            
            .header .links .icons span:last-child {
                width: 100%;
            }
            
            .header .links ul {
                list-style: none;
                margin: 0;
                padding: 0;
                background-color: #f6f6f6;
                position: absolute;
                right: 0;
                min-width: 200px;
                top: calc(100% + 15px);
                display: none;
                z-index: 1;
            }
            
            .header .links ul::before {
                content: "";
                border-width: 10px;
                border-style: solid;
                border-color: transparent transparent #f6f6f6 transparent;
                position: absolute;
                right: 5px;
                top: -20px;
            }
            
            .header .links:hover ul {
                display: block;
            }
            
            .header .links ul li a {
                display: block;
                padding: 15px;
                text-decoration: none;
                color: #333;
                transition: 0.3s;
                -webkit-transition: 0.3s;
                -moz-transition: 0.3s;
                -ms-transition: 0.3s;
                -o-transition: 0.3s;
            }
            
            .header .links ul li a:hover {
                padding: 25px;
            }
            
            .header .links ul li:not(:last-child) a {
                border-bottom: 1px solid #ddd;
            }
            /* end header */
            /* start landing section */
            
            .landing {
                background-image: url(../images/landing.jpg.jpg);
                background-size: cover;
                height: calc(100vh - 64px);
                position: relative;
            }
            
            .landing .intro-text {
                position: absolute;
                left: 50%;
                top: 50%;
                text-align: center;
                transform: translate(-50%, -50%);
                -webkit-transform: translate(-50%, -50%);
                -moz-transform: translate(-50%, -50%);
                -ms-transform: translate(-50%, -50%);
                -o-transform: translate(-50%, -50%);
                width: 320px;
                max-width: 100%;
            }
            
            .landing .intro-text h1 {
                margin: 0;
                font-weight: bold;
                font-size: 50px;
                color: var(--main-color);
            }
            
            .landing .intro-text p {
                font-size: 20px;
                line-height: 1.8;
            }
            /* end landing section */
            /* start features */
            
            .features {
                padding-top: var(--section-padding);
                padding-bottom: var(--section-padding);
                background-color: var(--section-background);
            }
            
            .features .container {
                display: grid;
                grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
                grid-gap: 20px;
            }
            
            .features .feat {
                padding: 20px;
                text-align: center;
            }
            
            .features .feat i {
                color: var(--main-color);
            }
            
            .features .feat h3 {
                font-weight: 800;
                margin: 30px 0;
            }
            
            .features .feat p {
                line-height: 1.8;
                color: #777;
                font-size: 17px;
            }
            /* end features */
            /* startservices */
            
            .services {
                padding-top: 60px;
                padding-bottom: 60px;
            }
            
            .services .services-content {
                display: grid;
                grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
                grid-gap: 50px;
                margin-top: 80px;
            }
            
            .services .services-content .srv {
                display: flex;
                margin-bottom: 40px;
            }
            
            @media (max-width: 767px) {
                .services .services-content .srv {
                    flex-direction: column;
                    text-align: center;
                }
            }
            
            .services .services-content .srv i {
                color: var(--main-color);
                flex-basis: 60px;
            }
            
            .services .services-content .srv .text {
                flex: 1;
            }
            
            .services .services-content .srv .text h3 {
                margin: 0 0 20px;
            }
            
            .services .services-content .srv .text p {
                color: #777;
                font-weight: 300;
                line-height: 1.6;
            }
            
            .services .services-content .image {
                text-align: center;
                position: relative;
                margin-top: 50px;
            }
            
            .services .services-content .image::before {
                content: "";
                background-color: var(--secondary-color);
                width: 100px;
                height: calc(100% + 100px);
                top: -50px;
                position: absolute;
                right: 0;
                z-index: -1;
            }
            
            .services .services-content .image img {
                width: 260px;
                height: 380px;
            }
            
            @media (max-width: 1199px) {
                .image-column {
                    display: none;
                }
            }
            /* end-services */
            /* start portfolio */
            
            .portfolio {
                padding-top: var(--section-padding);
                padding-bottom: var(--section-padding);
                background-color: var(--section-background);
            }
            
            .portfolio .portfolio-content {
                display: grid;
                grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
                grid-gap: 50px;
                margin-top: 80px;
            }
            
            .portfolio .portfolio-content .card {
                background-color: white;
            }
            
            .portfolio .portfolio-content .card img {
                max-width: 100%;
            }
            
            .portfolio .portfolio-content .card .info {
                padding: 20px;
            }
            
            .portfolio .portfolio-content .card .info h3 {
                margin: 0;
            }
            
            .portfolio .portfolio-content .card .info p {
                color: #777;
                line-height: 1.6;
                margin-bottom: 0;
            }
            /* end portfolio */
            /* start about */
            
            .about {
                padding-top: var(--section-padding);
                padding-bottom: calc(var(--section-padding) + 60px);
            }
            
            .about .about-content {
                margin-top: 80px;
                display: flex;
                flex-wrap: wrap;
                justify-content: space-between;
            }
            
            @media (max-width: 991px) {
                .about .about-content {
                    flex-direction: column;
                    text-align: center;
                }
            }
            
            .about .about-content .image {
                position: relative;
                width: 250px;
                height: 375px;
            }
            
            .about .about-content .image img {
                width: 100%;
                height: 100%;
                object-fit: none;
            }
            
            @media (max-width: 991px) {
                .about .about-content .image {
                    margin: 0 auto 60px;
                }
            }
            
            .about .about-content .image::before {
                content: "";
                position: absolute;
                background-color: #abeced;
                width: 100px;
                height: calc(100% + 20px);
                top: -10px;
                left: -20px;
                z-index: -1;
            }
            
            .about .about-content .image::after {
                content: "";
                top: -40px;
                position: absolute;
                width: 120px;
                height: 300px;
                border-left: 80px solid var(--main-color);
                border-bottom: 80px solid var(--main-color);
                z-index: -1;
                right: -150px;
            }
            
            @media (max-width: 991px) {
                .about .about-content .image::before,
                .about .about-content .image::after {
                    display: none;
                }
            }
            
            .about .about-content .text {
                flex-basis: calc(100% - 500px);
            }
            
            .about .about-content .text p:first-of-type {
                font-weight: bold;
                line-height: 2;
                margin-bottom: 50px;
            }
            
            .about .about-content .text hr {
                width: 50%;
                display: inline-block;
                border-color: var(--main-color);
            }
            
            .about .about-content .text p:last-of-type {
                line-height: 2;
                color: #777;
            }
            /* end about */
            /* start contact */
            
            .contact {
                padding-top: var(--section-padding);
                padding-bottom: var(--section-padding);
                background-color: var(--section-background);
            }
            
            .contact .info {
                padding-top: var(--section-padding);
                padding-bottom: var(--section-padding);
                text-align: center;
            }
            
            .contact .info .label {
                font-size: 40px;
                font-weight: 800;
                color: var(--secondary-color);
                letter-spacing: -2px;
                margin-bottom: 15px;
            }
            
            .contact .info .link {
                display: block;
                font-size: 40px;
                font-weight: 800;
                color: var(--main-color);
                text-decoration: none;
            }
            
            .contact .info .social {
                display: flex;
                justify-content: center;
                margin-top: 20px;
                font-size: 15px;
            }
            
            .contact .info .social i {
                margin-left: 10px;
                color: var(--secondary-color);
            }
            
            @media (max-width: 767px) {
                .contact .info .link,
                .contact .info .label {
                    font-size: 25px;
                }
            }
            /* end contact */
            /* start footer */
            
            .footer {
                background-color: var(--secondary-color);
                color: white;
                padding: 30px 10px;
                text-align: center;
                font-size: 18px;
            }
            
            .footer span {
                font-weight: bold;
                color: var(--main-color);
            }
            /* end footer */