@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@400;500;600&display=swap');

:root{
    --header-height: 3rem;

    /* Colors */
    --hue-color: 230; 
    /* --hue-color: 90;  */

    --first-color: hsl(var(--hue-color), 50%, 25%);
    --first-color-second: hsl(var(--hue-color), 70%, 60%);
    --first-color-alt: hsl(var(--hue-color), 70%, 60%);
    --first-color-lighter: hsl(var(--hue-color), 90%, 85%);
    --title-color: hsl(var(--hue-color), 8%, 15%);
    --text-color: hsl(var(--hue-color), 8%, 45%);
    --text-color-light: hsl(var(--hue-color), 8%, 15%);
    --input-color: hsl(var(--hue-color), 70%, 95%);
    --body-color: hsl(var(--hue-color), 60%, 98%);
    --container-color: #fff;
    --scroll-bar-color: hsl(var(--hue-color), 15%, 90%);
    --scroll-thumb-color: hsl(var(--hue-color), 15%, 80%);
    
    /* Font */
    --body-font: 'Poppins', sans-serif;

    --big-font-size: 2rem;
    --h1-font-size: 1.5rem;
    --h2-font-size: 1.25rem;
    --h3-font-size: 1.125rem;
    --normal-font-size: 0.9rem;
    --small-font-size: 0.8rem;
    --smaller-font-size: 0.75rem;

    --font-medium: 500;
    --font-semi-bold: 600;

    /* Margins Bottom */
    --mb-0-25: 0.25rem;
    --mb-0-5: 0.5rem;
    --mb-0-75: 0.75rem;
    --mb-1: 1rem;
    --mb-1-5: 1.5rem;
    --mb-2: 2rem;
    --mb-2-5: 2.5rem;
    --mb-3: 3rem;

    /* Index */
    --z-tooltip: 10;
    --z-fixed: 100;
    --z-modal: 1000;
}

/* Media Queries - Responsive */
@media screen and (min-width: 968px) {
    :root {
        --big-font-size: 3rem;
        --h1-font-size: 2.25rem;
        --h2-font-size: 1.5rem;
        --h3-font-size: 1.25rem;
        --normal-font-size: 1rem;
        --small-font-size: 0.875rem;
        --smaller-font-size: 0.8rem;
    }
}
body.dark-theme{

    --first-color: hsl(var(--hue-color), 50%, 50%);
    --first-color-alt: hsl(var(--hue-color), 90%, 60%);
    --first-color-second: hsl(var(--hue-color), 30%, 8%);
    --title-color: hsl(var(--hue-color), 100%, 100%);
    --text-color: hsl(var(--hue-color), 65%, 85%);
    --text-color-light: hsl(var(--hue-color), 8%, 75%);
    --input-color: hsl(var(--hue-color), 30%, 35%);
    --body-color: hsl(var(--hue-color), 25%, 15%);
    --container-color: hsl(var(--hue-color), 30%, 25%);
    --scroll-bar-color: hsl(var(--hue-color), 15%, 35%);
    --scroll-thumb-color: hsl(var(--hue-color), 15%, 50%);
}
.nav_btns{
    display: flex;
    align-items: center;
}
.change-theme{
    font-size: 1.25rem;
    color: var(--title-color);
    margin-right: var(--mb-1);
    cursor: pointer;
}
.change-theme:hover{
    color: var(--first-color-alt);
}

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

html{
    scroll-behavior: smooth;
}

body{
    margin: 0 0 var(--header-height) 0;
    font-family: var(--body-font);
    font-size: var(--normal-font-size);
    background-color: var(--body-color);
    color: var(--text-color);
}

h1, h2, h3, h4{
    color: var(--text-color);
    font-weight: var(--font-semi-bold);
}

ul{
    list-style: none;
}

a{
    text-decoration: none;
}

img{
    max-width: 100%;
    height: auto;
}
#mask0{
    mask-type: alpha;
}
.active-link{
    color: white;
}

.section{
    padding: 2rem 0 4rem;
}

.section_title{
    font-size: var(--h1-font-size);
}

.section_subtitle{
    display: block;
    font-size: var(--small-font-size);
    margin-bottom: var(--mb-3);
}

.section_title, .section_subtitle{
    text-align: center;
}

.container{
    max-width: 768px;
    margin-left: var(--mb-1-5);
    margin-right: var(--mb-1-5);
}

.grid{
    display: grid;
    gap: 1.5rem;
}

.header{
    width: 100%;
    position: fixed;
    bottom: 0;
    left: 0;
    z-index: var(--z-fixed);
    background-color: var(--body-color);
    box-shadow: 0 -1px 4px rgba(0, 0, 0, 0.15);
}

.nav{
    max-width: 968px;
    height: var(--header-height);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav_logo, .nav_toggle{
    color: var(--title-color);
    font-weight: var(--font-medium);
}

.nav_logo:hover{
    color: var(--first-color);
}

.nav_toggle{
    font-size: 1.1rem;
    cursor: pointer;
}

.nav_toggle:hover{
    color: var(--first-color);
}

@media screen and (max-width: 767px){
    .nav_menu{
        position: fixed;
        bottom: -100%;
        left: 0;
        width: 100%;
        background-color: var(--body-color);
        padding: 2rem 1.5rem 4rem;
        box-shadow: 0 -1px 4px rgba(0, 0, 0, 0.15);
        border-radius: 1.5rem 1.5rem 0 0;
        transition: 0.3s;
    }
}

.nav_list{
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}
.nav_link{
    display: flex;
    flex-direction: column;
    align-items: center;
    font-size: var(--small-font-size);
    color: var(--title-color);
    font-weight: var(--font-medium);
}

.nav_link:hover{
    color: var(--first-color-alt);
}

.nav_icon{
    font-size: 1.2rem;
}

.nav_close{
    position: absolute;
    right: 1.3rem;
    bottom: 0.5rem;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--first-color);
}

.nav_close:hover{
    color: var(--first-color-alt);
}

/* PopUp Menu */
.show-menu{
    bottom: 0;
}

.home_container{
    gap: 1rem;
}
.home_content{
    grid-template-columns: 0.5fr 3fr;
    padding-top: 3.5rem;
    align-items: center;
}
.home_social{
    display: grid;
    grid-template-columns: max-content;
    row-gap: 1rem;
}
.home_social-icon{
    font-size: 1.25rem;
    color: var(--first-color);
}
.home_social-icon:hover{
    color: var(--first-color-alt);
}
.home_blob{
    width: 400px;
    fill: var(--first-color);
}
.home_blob-img{
    width: 120px;
}
.home_data{
    grid-column: 1/3;
}
.home_title{
    font-size: var(--big-font-size);
}
.home_subtitle{
    font-size: var(--h3-font-size);
    color: var(--text-color);
    font-weight: var(--font-medium);
    margin-bottom: var(--mb-0-75);
}
.home_description{
    margin-bottom: var(--mb-2);
}
.home_scroll{
    display: none;
}
.home_scroll-button{
    color: var(--first-color);
    transition: 0.3s;
}
.home_scroll-button:hover{
    transform: translateY(0.25rem);
}
.home_scroll-mouse{
    font-size: 2rem;
}
.home_scroll-name{
    font-size: var(--small-font-size);
    color: var(--title-color);
    font-weight: var(--font-medium);
    margin-right: var(--mb-0-25);
}
.home_scroll-arrow{
    font-size: 1.25rem;
}

.button{
    display: inline-block;
    background-color: var(--first-color);
    color: #fff;
    padding: 1rem;
    border-radius: 0.5rem;
    font-weight: var(--font-medium);
}
.button:hover{
    background-color: var(--first-color-alt);
}
.button_icon{
    font-size: 1.25rem;
    margin-left: var(--mb-0-5);
    transition: 0.3s;
}
.button--flex{
    display: inline-flex;
    align-items: center;
}
.button--small{
    padding: 0.75rem 1rem;
}
.button--link{
    padding: 0;
    background-color: transparent;
    color: var(--first-color);
}
.button--link:hover{
    background-color: transparent;
    color: var(--first-color-alt);
}
.button_contact:hover .button_icon{
    transform: translateX(0.25rem);
}

.about_img{
    width: 200px;
    border-radius: .5rem;
    justify-self: center;
    align-self: center;
}
.about_description{
    text-align: center;
    margin-bottom: var(--mb-2-5);
}
.about_info{
    display: flex;
    justify-content: space-evenly;
    margin-bottom: var(--mb-2-5);
}
.about_info-title{
    font-size: var(--h2-font-size);
    font-weight: var(--font-semi-bold);
    color: var(--title-color);
}
.about_info-name{
    font-size: var(--smaller-font-size);
}
.about_info-title, .about_info-name{
    display: block;
    text-align: center;
}
.about_button{
    display: flex;
    justify-content: center;
}
.about_button:hover .button_icon{
    transform: translateY(0.25rem);
}

.skills_container{
    row-gap:0;
}
.skills_header{
    display: flex;
    align-items: center;
    margin-bottom: var(--mb-2-5);
    cursor: pointer;
}
.skills_icon, .skills_arrow{
    font-size: 2rem;
    color: var(--first-color);
}
.skills_icon{
    margin-right: var(--mb-0-75);
}
.skills_title{
    font-size: var(--h3-font-size);
}
.skills_subtitle{
    font-size: var(--small-font-size);
    color: var(--text-color-light);
}
.skills_arrow{
    margin-left: auto;
    transition: 0.4s;
}
.skills_list{
    row-gap: 1.5rem;
    padding-left: 2.7rem;
}
.skills_titles{
    display: flex;
    justify-content: space-between;
    margin-bottom: var(--mb-0-5);
}
.skills_name{
    font-size: var(--normal-font-size);
    font-weight: var(--font-medium);
}
.skills_bar, .skills_percentage{
    height: 5px;
    border-radius: 0.25rem;
}
.skills_bar{
    background-color: var(--first-color-lighter);
}
.skills_percentage{
    display: block;
    background-color: var(--first-color);
}
.skills_close .skills_list{
    height: 0;
    overflow: hidden;
}
.skills_open .skills_list{
    height: max-content;
    margin-bottom: var(--mb-2-5);
}
.skills_open .skills_arrow{
    transform: rotate(180deg);
}

.qualification_tabs{
    display: flex;
    justify-content: space-evenly;
    margin-bottom: var(--mb-2);
}
.qualification_button{
    font-size: var(--h3-font-size);
    font-weight: var(--font-medium);
    cursor: pointer;
}
.qualification_button:hover{
    color: var(--first-color);
}
.qualification_icon{
    font-size: 1.8rem;
    margin-right: var(--mb-0-25);
}
.qualification_data{
    display: grid;
    grid-template-columns: 1fr max-content 1fr;
    column-gap: 1.5rem;
}
.qualification_title{
    font-size: var(--normal-font-size);
    font-weight: var(--font-medium);
}
.qualification_subtitle{
    display: inline-block;
    font-size: var(--small-font-size);
    margin-bottom: var(--mb-1);
}
.qualification_calendar{
    font-size: var(--smaller-font-size);
    color: var(--text-color-light);
}
.qualification_rounder{
    display: inline-block;
    width: 13px;
    height: 13px;
    background-color: var(--first-color);
    border-radius: 50%;
}
.qualification_line{
    display: block;
    width: 1px;
    height: 100%;
    background-color: var(--first-color);
    transform: translate(6px, -7px);
}
.qualification [data-content]{
    display: none;
}
.qualification_active[data-content]{
    display: block;
}
.qualification_button.qualification_active{
    color: var(--first-color);
}

.knowledges_container{
    gap: 1.5rem;
    grid-template-columns: repeat(2, 1fr);
}
.knowledges_content{
    position: relative;
    background-color: var(--container-color);
    padding: 3.5rem 0.5rem 1.25rem 1.5rem;
    border-radius: 0.25rem;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.15);
    transition: 0.3s;
}
.knowledges_content:hover{
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}
.knowledges_icon{
    display: block;
    font-size: 1.5rem;
    color: var(--first-color);
    margin-bottom: var(--mb-1);
}
.knowledges_title{
    font-size: var(--h3-font-size);
    margin-bottom: var(--mb-1);
    font-weight: var(--font-medium);
}
.knowledges_button{
    cursor: pointer;
    font-size: var(--small-font-size);
}
.knowledges_button:hover .button_icon{
    transform: translateX(0.25rem);
}
.knowledges_modal{
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 1rem;
    z-index: var(--z-modal);
    opacity: 0;
    visibility: hidden;
    transition: 0.3s;
}
.knowledges_modal-content{
    position: relative;
    background-color: var(--container-color);
    padding: 1.5rem;
    border-radius: 0.5rem;
}
.knowledges_modal-knowledges{
    row-gap: 1rem;
}
.knowledges_modal-knowledge{
    display: flex;
}
.knowledges_modal-title{
    font-size: var(--h3-font-size);
    font-weight: var(--font-medium);
    margin-bottom: var(--mb-1-5);
}
.knowledges_modal-close{
    position: absolute;
    top: 1rem;
    right: 1rem;
    color: var(--first-color);
    cursor: pointer;
}
.knowledges_modal-icon{
    color: var(--first-color);
    margin-right: var(--mb-0-25);
}
.active-modal{
    opacity: 1;
    visibility: visible;
}

.portfolio_container{
    overflow: initial;
}
.portfolio_container{
    padding: 0 3.5rem;
}
.portfolio_img{
    width: 265px;
    border-radius: 0.5rem;
    justify-self: center;
}
.portfolio_title{
    font-size: var(--h3-font-size);
    margin-bottom: var(--mb-0-5);
}
.portfolio_data{
    display: flex;
    flex-direction: column;
    align-items: center;
}
.portfolio_description{
    margin-bottom: var(--mb-0-75);
}

.portfolio_button:hover .button_icon{
    transform: translateY(-0.25rem);
}
.swiper-button-prev::after, 
.swiper-button-next::after{
    visibility: hidden;
    color: var(--first-color);
    font-size: 2rem;
}
.swiper-portfolio-icon{
    font-size: 2rem;
    color: var(--first-color);
}
.swiper-button-prev{
    left: -0.5rem;
}
.swiper-button-next{
    right: -0.5rem;
}
.swiper-container-horizontal > .swiper-pagination-bullets{
    bottom: -2.5rem;
}
.swiper-pagination-bullet-active{
    background-color: var(--first-color);
}

.contact_container{
    row-gap: 3rem;
}
.contact_information{
    display: flex;
    margin-bottom: var(--mb-2-5);
}
.contact_icon{
    font-size: 2rem;
    color: var(--first-color);
    margin-right: var(--mb-0-75);
}
.contact_title{
    font-size: var(--h3-font-size);
    font-weight: var(--font-medium);
}
.contact_subtitle{
    font-size: var(--small-font-size);
    color: var(--text-color-light);
}
.contact_content{
    background-color: var(--input-color);
    border-radius: 0.5rem;
    padding: 0.75rem 1rem 0.25rem;
}
.contact_label{
    font-size: var(--smaller-font-size);
    color: var(--title-color);
}
.contact_input{
    width: 100%;
    background-color: var(--input-color);
    color: var(--text-color);
    font-family: var(--body-font);
    font-size: var(--normal-font-size);
    border: none;
    outline: none;
    padding: 0.25rem 0.5rem 0.5rem 0;
}
.button_form{
    border: none;
}
.button_form:hover .button_icon{
    transform: translateX(0.25rem);
}

.footer{
    padding-top: 2rem;
}
.footer_container{
    row-gap: 3.5rem;
}
.footer_bg{
    background-color: hsl(var(--hue-color), 50%, 25%);
    padding: 2rem 0 3rem;
}
.footer_title{
    font-size: var(--h1-font-size);
    margin-bottom: var(--mb-0-25);
}
.footer_subtitle{
    font-size: var(--small-font-size);
}
.footer_links{
    display: flex;
    flex-direction: column;
    row-gap: 1.5rem;
}
.footer_link:hover{
    color: var(--first-color-lighter);
}
.footer_social{
    font-size: 1.25rem;
    margin-right: var(--mb-1-5);
}
.footer_social:hover{
    color: var(--first-color-lighter);
}
.footer_copy{
    font-size: var(--smaller-font-size);
    text-align: center;
    color: var(--first-color-lighter);
    margin-top: var(--mb-3);
}
.footer_title, .footer_subtitle, .footer_link, .footer_social{
    color: white;
}
.scrollup{
    position: fixed;
    right: 1rem;
    bottom: -20%;
    background-color: var(--first-color);
    opacity: 0.8;
    padding: 0 0.3rem;
    border-radius: 0.4rem;
    z-index: var(--z-tooltip);
    transition: 0.4s;
}
.scrollup:hover{
    background-color: var(--first-color-alt);
    transform: translateY(-0.25rem);
}
.scrollup_icon{
    font-size: 1.5rem;
    color: white;
}
.show-scroll{
    bottom: 5rem;
}

::-webkit-scrollbar{
    width: 0.60rem;
    background-color: var(--scroll-bar-color);
    border-radius: 0.5rem;
}
::-webkit-scrollbar-thumb{
    background-color: var(--scroll-thumb-color);
    border-radius: 0.5rem;
}

@media screen and (max-width: 350px) {
    .container{
        margin-left: var(--mb-1);
        margin-right: var(--mb-1);
    }
    .nav_menu{
        padding: 2rem 0.25rem 4rem;
    }
    .nav_list{
        column-gap: 0;
    }
    .home_content{
        grid-template-columns: 0.25fr 3fr;
    }
    .home_blob{
        width: 180px;
    }
    .skills_title{
        font-size: var(--normal-font-size);
    }
    .qualification_data{
        gap: 0.5rem;
    }
    .knowledges_container{
        grid-template-columns: max-content;
        justify-content: center;
    }
    .knowledges_content{
        padding-right: 3.5rem;
    }
    .knowledges_modal{
        padding: 0 0.5rem;
    }
}
@media screen and (min-width: 568px) {
    .home_content{
        grid-template-columns: max-content 1fr 1fr;
    }
    .home_data{
        grid-column: initial;
    }
    .home_img{
        order: 1;
        justify-self: center;
    }
    .about_container, .portfolio_content, .footer_container{
        grid-template-columns: repeat(2, 1fr);
    }
    .qualification_sections, .skills_container, .contact_container{
        display: grid;
        grid-template-columns: 0.6fr;
        justify-content: center;
    }
}

@media screen and (min-width: 768px) {
    .container{
        margin-left: auto;
        margin-right: auto;
    }

    body{
        margin: 0;
    }
    .section{
        padding: 6rem 0 2rem;
    }
    .section_subtitle{
        margin-bottom: 4rem;
    }
    .header{
        top: 0;
        bottom: initial;
    }
    .header, .main, .footer_container{
        padding: 0 1rem;
    }
    .nav{
        height: calc(var(--header-height) + 1.5rem);
        column-gap: 1rem;
    }
    .nav_icon, .nav_close, .nav_toggle{
        display: none;
    }
    .nav_list{
        display: flex;
        column-gap: 2rem;
    }
    .nav_menu{
        margin-left: auto;
    }
    .change-theme{
        margin: 0;
    }
    .home_container{
        row-gap: 5rem;
    }
    .home_content{
        padding-top: 5.5rem;
        column-gap: 2rem;
    }
    .home_scroll{
        display: block;
    }
    .home_scroll-button{
        margin-left: 3rem;
    }
    .about_container{
        column-gap: 5rem;
    }
    .about_img{
        width: 350px;
    }
    .about_description{
        text-align: initial;
    }
    .about_info{
        justify-content: space-evenly;
    }
    .about_button{
        justify-content: center;
    }
    .qualification_tabs{
        justify-content: center;
    }
    .qualification_button{
        margin: 0 var(--mb-1);
    }
    .qualification_sections{
        grid-template-columns: 0.5fr;
    }
    .knowledges_container{
        grid-template-columns: repeat(2, 218px);
        justify-content: center;
    }
    .knowledges_icon{
        font-size: 2rem;
    }
    .knowledges_content{
        padding: 6rem 0 2rem 2.5rem;
    }
    .knowledges_modal-content{
        width: 450px;
    }
    .portfolio_img{
        width: 320px;
    }
    .portfolio_content{
        align-items: center;
    }
    .footer_container{
        grid-template-columns: repeat(3, 1fr);
    }
    .footer_bg{
        padding: 3rem 0 3.5rem;
    }
    .footer_links{
        flex-direction: row;
        column-gap: 2rem;
    }
    .footer_socials{
        justify-self: flex-end;
    }
    .footer_copy{
        margin-top: 4.5rem;
    }
}
@media screen and (min-width: 1024px) {
    .header, .main, .footer_container{
        padding: 0;
    }    
    .home_blob{
        width: 320px;
    }
    .home_social{
        transform: translateX(-6rem);
    }
    .knowledges_container{
        grid-template-columns: repeat(2, 238px);
    }
    .portfolio_content{
        column-gap: 5rem;
    }
    .swiper-portfolio-icon{
        font-size: 3.5rem;
    }
    .swiper-button-prev{
        left: -3.5rem;
    }
    .swiper-button-next{
        right: -3.5rem;
    }
    .contact_container{
        display: flex;
    }
    .contact_form{
        width: 460px;
    }
    .contact_input{
        grid-template-columns: repeat(2, 1fr);
    }
}