@import url('https://fonts.googleapis.com/css2?family=Darker+Grotesque:wght@300;400;500;600;700&display=swap');
:root{
    --header-height: 3rem;

    /* Colors */
    --primary-color:  #212B44;
    --primary-color-dark: #141b2d;
    --text-color: #524748;
    --primary-color-light: #7B6F71;
    --primary-color-lighten: #FBF9F9;

    /* Font and typography */
    --body-font:'Darker Grotesque', sans-serif;
    --biggest-font-size: 2.5rem;
    --h1-font-size: 1.5rem;
    --h2-font-size: 1.25rem;
    --h3-font-size: 1.125rem;
    --normal-font-size: .938rem;
    --small-font-size: .813rem;
    --smaller-font-size: .75rem;

    /* Font weight */
    --font-medium: 500;
    --font-semi-bold: 600;
    --font-bold: 700;

    /* Margenes */
    --mb-1: .5rem;
    --mb-2: 1rem;
    --mb-3: 1.5rem;
    --mb-4: 2rem;
    --mb-5: 2.5rem;
    --mb-6: 3rem;
    /* z index */
    --z-normal: 1;
    --z-tooltip: 10;
    --z-fixed: 100;
}
@media screen and (min-width: 768px){
    :root {
        --biggest-font-size: 4.5rem;
        --h1-font-size: 2.25rem;
        --h2-font-size: 1.5rem;
        --h3-font-size: 1.25rem;
        --normal-font-size: 1rem;
        --small-font-size: .875rem;
        --smaller-font-size: .813rem;
    }
}
    /* Base */
    *,::before, ::after {
      box-sizing: border-box;  
    }
    html {
        scroll-behavior: smooth;
    }
    body {
        margin: var(--header-height) 0 0 0;
        font-family: var(--body-font);
        font-size: var(--normal-font-size);
        font-weight: var(--font-medium);
        background-color: var(--primary-color-lighten);
        background-image:url(images/);
        color: var(--text-color);
        line-height: 1.6;
    }
    h1,h2,h3,ul,p {
        margin: 0;
    }
    h2,h3 {
        font-weight: var(--font-semi-bold);
    }
    ul {
        padding: 0;
        list-style: none;
    }
    a {
        text-decoration: none;
    }
    img {
        max-width: 100%;
        height: auto;
        display: block; 
    }

    /* Class CSS */
    .section {
        padding: 4rem 0 2rem;
    }
    .section-title {
        text-align: center;
        margin-bottom: var(--mb-5);
    }
    .section-subtitle {
        text-align: center;
        padding: 1rem;
    }
    .section-title {
        font-size: var(--h1-font-size);
        color: var(--primary-color);
        margin-bottom: var(--mb-3);
    }
    .section-subtile {
        display: block;
        font-size: var(--smaller-font-size);
        font-weight: var(--font-semi-bold);
    }

    /* Layout */
    .bd-container {
        max-width: 1024px;
        width: calc(100% - 2rem);
        margin-left: var(--mb-2);
        margin-right: var(--mb-2);
    }
    .bd-grid {
        display: grid;
        gap: 1.5rem;
        margin-top: var(--mb-2);
        margin-bottom: var(--mb-2);
    }
    .full-img {
        border-radius: .5rem;
        align-items: center;
    }
    .l-header {
        width: 100%;
        position: fixed;
        top: 0;
        left: 0;
        z-index: var(--z-fixed);
        background-color: #141b2d;
    }
    /* Nav */
    .nav {
        height: var(--header-height);
        display: flex;
        justify-content: space-between;
        align-items: center;
    }

    @media screen and (max-width: 767px){
        .nav_menu {
            position: fixed;
            top: -100%;
            left: 0;
            width: 100%;
            padding-top: 1.5rem;
            text-align: center;
            background-color: var(--primary-color);
            transition: .4s;
            box-shadow: 0 2px 4px rgba(0,0,0,.1);
            border-radius: 0 0 1rem 1rem;
        }
    }

    .nav_item{
        margin-bottom: var(--mb-3);
    }
    .nav_link {
        color: var(--primary-color-lighten);
        transition: .3s;
        font-weight: 700;
    }
    .nav_link:hover {
        color: var(--primary-color-light);
    }
    .nav_logo, .nav_toggle {
        color: var(--primary-color-lighten);
    }
    .nav_toggle {
        font-size: 1.3rem;
        cursor: pointer;
    }
    /* show menu */
    .show-menu {
        top: var(--header-height);
    }
     /* active menu */
    .active-link {
        position: relative;
    }
    .active-link::after {
        content: '';
        position: absolute;
        bottom: -.7rem;
        left: 0;
        width: 65%;
        height: 3px;
        background-color: var(--primary-color-light);
    }
    /* change background header */
    .scroll-header {
        background-color: var(--primary-color-lighten);
        box-shadow: 0 2px 4px rgba(0,0,0,.1);
    }
    .scroll-header .nav_logo, .scroll-header .nav_toggle, .scroll-header .nav_link{
        color: var(--primary-color-dark);
    }
    .scroll-header .nav_menu {
        background-color: var(--primary-color-lighten);
    }
    /* scroll top */
    .scrolltop {
        position: fixed;
        right: 1rem;
        bottom: -20%;
        display: flex;
        justify-content: center;
        align-items: center;
        padding: .5rem;
        background: rgba(123, 111, 113, .7);
        border-radius: .5rem;
        z-index: var(--z-tooltip);
        transition: .4s;
        visibility: hidden;
    }
    .scrolltop:hover{
        background-color: var(--primary-color);
    }
    .scrolltop_icon {
        font-size: 2rem;
        color: var(--primary-color-lighten);

    }
    /* Show scroll top */
    .show-scroll {
        visibility: visible;
        bottom: 1.5rem;
    }
    /* home */
    .home {
        background-color: #212B44;
        overflow: hidden;
    }

    .home_container {
        position: relative;
        height: calc(100vh - var(--header-height));
        grid-template-rows: repeat(2,max-content);
        align-content: space-around;
        row-gap: 2rem;
    }
    .home_data {
        border-left: 4px solid var(--primary-color-lighten);
        color: var(--primary-color-lighten);
        padding-left: 1.5rem;
        z-index: var(--z-tooltip);
    }
    .home_name {
        font-size: var(--biggest-font-size);
    }
    .home_greeting, .home_profession {
        display: block;
        font-weight: var(--font-bold);
    }
    .home_greeting {
        font-size: 1rem;
    }
    .home_profession {
        font-size: .938rem;
        margin-bottom: var(--mb-3);
    }
    .home_img {
        position: absolute;
        right: 50px;
        bottom: 100px;
    }
    .home_img img {
        width: 450px;
        border-radius: 15rem;
    }
    .home_social {
        display: flex;
        flex-direction: column;
    }

    .home_social-icon {
        width: max-content;
        font-size: 2rem;
        margin-bottom: var(--mb-2);
        color: var(--primary-color-lighten);
    }
    .home_social-icon:hover {
        color: var(--primary-color-light);
    }
    /* buttons */
    .button {
        display: inline-block;
        background-color: var(--primary-color);
        color: var(--primary-color-lighten);
        padding: .75rem 1rem;
        border-radius: .25rem;
        transition: .3s;
    }
    .button:hover{
        background-color: var(--primary-color-dark);
    }
    .button-light {
        background-color: var(--primary-color-light);
    }
    .button-white {
        background-color: var(--primary-color-lighten);
        color: var(--primary-color-dark);
    }
    .button-white:hover {
        background-color: var(--primary-color-lighten);
    }
    .button-link {
        background: none;
        color: var(--primary-color);
        padding: 0;
    }
    .button-link:hover {
        background: none;
    }
    /* about */
    .about_data {
        text-align: center;
    }
    .about_description span{
        font-size: var(--h2-font-size);
        font-weight: var(--font-semi-bold);
        color: var(--primary-color);
        text-align: center;
    }
    .about_description_small {
        font-size: .9rem;
        text-align: justify;
        margin-left: var(--mb-2);
        margin-right: var(--mb-2);
    }
    .about_number {
        font-size: var(--h1-font-size);
        color: var(--primary-color);
        display: block;
    }
    .about_img {
        justify-content: center;
        /* width: 220px; */
        border-radius: .5rem;
    }
     /* qualification */
     .qualification_title {
         font-size: var(--h3-font-size);
         color: var(--primary-color);
         margin-bottom: var(--mb-2);
         display: flex;
         align-items: center;
    }
     .qualification_title-icon {
         font-size: 1.5rem;
         margin-right:var(--mb-1);
    }
    .qualification_box {
        padding-bottom: 1rem;
        border-bottom: 1px solid #ccc;
    }
    .qualification_area{
        font-size: var(--normal-font-size);
        color: var(--primary-color);
        margin-bottom: var(--mb-1);
        font-weight: var(--font-medium);
    }
    .qualification_icon, .qualification_work {
        font-size: var(--smaller-font-size);
        color: var(--primary-color);
    }
    .qualification_work {
        display: block;
    }
    /* Services */
    .services_data {
        padding: 3rem 1rem;
        background-color: #fff;
        border-radius: .5rem;
        text-align: center;
        transition: .4s;
        box-shadow: 0 4px 6px rgba(174, 190, 205, .3);
    }
    .services_icon, .services_title{
        margin-bottom: var(--mb-2);
        color: var(--primary-color);
    }
    .services_icon {
        font-size: 3rem;
    }
    .services_title {
        font-size: var(--h3-font-size);
    }
    .services_description {
        margin-bottom: var(--mb-4);
    }
    .services_data:hover {
        transform: translateY(-.5rem);
        box-shadow: 0 6px 8px rgba(174,190,205, .4);
    }
    /* Project in mind */
    .project_container {
        padding: 1.5rem 1rem;
        background-color: var(--primary-color-dark);
        color: var(--primary-color-lighten);
        border-radius: .5rem;
        text-align: center;
    }
    .project_icon, .project_title {
        margin-bottom: var(--mb-1);
    }
    .project_icon{
        font-size: 3.5rem;
    }
    .project_title {
        font-size: 1.5rem;;
    }
    .project_description {
        margin-bottom: var(--mb-4);
    }
    /* Portfolio */
    .portfolio_nav {
        text-align: center;
        margin-bottom: var(--mb-3);
    }
    .portfolio_item {
        margin: 0 var(--mb-2);
        cursor: pointer;
    }
    .portfolio_content {
        background-color: #fff;
        border-radius: .5rem;
        overflow: hidden;
        box-shadow: 0 4px 6px rgba(174, 190, 205, .3);
    }
    .portfolio_img {
        width: 100%;
        transition: .4s;
    }
    .portfolio_data {
        padding: 1.5rem;
    }
    .porfolio_subtitle{
        font-size: var(--small-font-size);
        color: var(--primary-color-light);
    }

    .portfolio_title {
        font-size: var(--h3-font-size);
        color: var(--primary-color);
        text-align: center;
    }
    .portfolio_content:hover {
        box-shadow: 0 6px 8px rgba(174,190,205, .4);
    }
    .portfolio_content:hover .portfolio_img {
        transition: scale(1.2);
    }
    /* Active menu portfolio */
    .active-portfolio {
        color: var(--primary-color-dark);
        font-weight: var(--font-semi-bold);
    }
    /* contact me */
    .contact_container {
        row-gap: 2.5rem;
    }

    .contact_content {
        grid-template-columns: repeat(auto-fit, minmax(220, 1fr));
    }

    .contact_box {
        background-color: #fff;
        border-radius: .5rem;
        padding: 1.5rem;
        text-align: center;
        box-shadow: 0 4px 6px rgba(174, 190, 205, .3);
    }
    .contact_icon, .contact_title {
        color: var(--primary-color);
    }
    .contact_icon {
        font-size: 2rem;
    }
    .contact_title{
        font-size: var(--h3-font-size);
        margin: var(--mb-1) 0;
    }
    .contact_social {
        color: var(--primary-color-light);
        font-size: 1.25rem;
        margin: 0 var(--mb-1);
    }
    .contact_box:hover{
        box-shadow: 0 6px 8px rgba(174,190,205, .4);
    }
    .contact_input, .contact_button {
        outline: none;
        font-family: var(--body-font);
        font-size: var(--normal-font-size);
    }
    .contact_input {
        width: 100%;
        padding: 1rem;
        border: 2px solid var(--primary-color-light);
        color: var(--primary-color);
        border-radius: .5rem;
        margin-bottom: var(--mb-1);
    }
    .contact::placeholder {
        color: var(--primary-color-light);
        font-family: var(--body-font);
    }
    .contact_button {
        cursor: pointer;
        border: none;
    }
    /*video*/
    .video-content {
        align-items: center;
        width: 350px;
        height: 200px;
    }
    /* footer */
    .footer {
        background-color: var(--primary-color-dark);
        color: var(--primary-color-lighten);
        text-align: center;
    }
    .footer_container {
        padding: 2rem 0;
    }

    .footer_title {
        font-size: var(--h1-font-size);
        margin-bottom: var(--mb-1);
        font-weight: var(--font-semi-bold);
    }

    .footer_description {
        margin-bottom: var(--mb-3);
    }
    .footer_social {
        margin-bottom: var(--mb-6);
    }
    .footer_link {
        font-size: 1.4rem;
        color: var(--primary-color);
        margin: 0 var(--mb-1);
        transition: .3s;
    }
    .footer_link:hover {
        color: var(--primary-color);
    }
    .footer_copy{
        font-size: var(--smaller-font-size);
        color: var(--primary-color-light);
    }
    /* media queries*/
    @media screen and (min-width: 576px) {
        .home_img img{
            width: 330px;
            border-radius: 15rem;
        }
        .about_container,
        .qualification_container,
        .services_container,
        .portfolio_container {
            grid-template-columns: repeat(2, 1fr);
        }
        .contact_form {
            width: 450px;
            justify-self: center;
        }
        .video-content {
            align-items: center;
            width: 350px;
            height: 200px;
        }
    }
    @media screen and (min-height: 721px) {    
        .home_container {      
            height: 640px;    
        } 
    }
    @media screen and (min-width: 768px) {
        body{
            margin: 0;
        }
        .section {
            padding-top: 6rem;
        }
        .section-title {
            margin-bottom: var(--mb-5);
        }
        .nav{
            height: calc(var(--header-height) + 1.5rem);
        }
        #nav_list {
            display: flex;
        }
        .nav_item {
            margin-left: var(--mb-5);
            margin-bottom: 0;
        }
        .nav_toggle {
            display: none;
        }
        .home_container {
            height: 100vh;
            grid-template-rows: max-content .5fr;
            align-content: flex-end;
        }
        .home_greetig {
            font-size: 1.25rem;
        }
        .home_profession {
            font-size: 2rem;
        }
        .home_social {
            flex-direction: row;
            align-items: center;
        }
        .home_social-icon {
            margin-right: var(--mb-4);
            margin-bottom: 0;
        }
        .home_img img {
            width: 350px;
            border-radius: 15rem;
        }
        .about_description {
            text-align: center;
        }
        /* .about_img {
            /* width: 300px; 
        } */
        
        .qualification_box {
            display: flex;
            justify-content: space-between;
        }
        .services_container,
        .portfolio_container {
            grid-template-columns: repeat(3, 1fr);
        }
        .project_container {
            padding: 4.5rem; 
        }
        .project_data {
            display: flex;
            justify-content: space-evenly;
            align-items: center;
        }
        .project_icon,
        .project_title,
        .project_description {
            margin-bottom: 0;
        }
        .project_title {
            font-size: 2.5rem;
        }
        .video-content {
            align-items: center;
            width: 500px;
            height: 350px;
        }
    }
    @media screen and (min-width: 1024px) {
        .bd-container {
            margin-left: auto;
            margin-right: auto;
        }
        .qualification_container {
            column-gap: 6rem;
        }
        .video-content {
            align-items: center;
            width: 600px;
            height: 400px;
        }
    }