@import url('reset.css');
@import url('https://fonts.googleapis.com/css?family=Montserrat:800|PT+Mono|PT+Sans');



:root {
    --header-color-f-color: #000;
    --header-color-bg: #eff1f2;
    --head-color: #0059D9;
    --header-font: 'Montserrat', sans-serif;
    --my-work-bg-color: #25282A;
    --my-work-font-color: #fff;
    --main-font: 'PT Sans', sans-serif;
    --user-font: 'PT Mono', monospace;;
    box-sizing: border-box;
    font-size: 1em;
}

*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: inherit;
}

body {
    font: 0.875rem var(--main-font);
    min-width: 320px;
}
.wrapper {
    width: 87.5%;
    border: 1px solid transparent;
    margin: 0 auto;
    max-width: 700px;
}
.header {
    background-color: var(--header-color-bg);
}
.header-photo {
    width: 73.2142857%;
    max-height: 205px;
    max-width: 205px;
    border-radius: 50%;
    overflow: hidden;
    margin: 6.2857em auto 0;
}

.header-photo__item {
    max-width: 100%;
    transform: translate(0, -20px);
}

.header-name {
    border: 1px solid transparent;
}

.header-name__item {
    font: 2rem var(--header-font);
    text-align: center;
    line-height: 1.125;
    margin-top: 1em;
}

.header-aside {
    border: 1px solid transparent;
}

.header-aside__item {
    opacity: 0.7;
    margin-top: 0.57142857em;
    font-family: var(--user-font);
    text-align: center;
    margin-bottom: 1.42857em;
}

.header__button {
    border: 1px solid transparent;
    margin: 0 auto;
    text-align: center;
}
.button {
    font: 1rem var(--header-font);
    text-decoration: none;
    display: block;
    color: #fff;
    background-color: var(--head-color);
    border-radius: 10px;
    border: 1px solid transparent;
    text-align: center;
    line-height: 24px;
    padding: 0.7222222222222222em 0;
    width: 100%;

}
.header__button-item {
    max-width: 280px;
    margin: 0 auto 4.833333333em;
}
.header__button-item:hover {
    background: var(--my-work-bg-color);
}

.header__button-item:active {
    opacity: 0.7;
}
/**********************************
 * *****************************
 * next section expectations
 * *****************************
 * ********************************/



.expectations {
    font: 2rem var(--header-font);
    border: 1px solid transparent;
    /*max-width: 240px;*/
    line-height: 1.125;
    margin-top: 1.625em;
    margin-bottom: 0.9375em;
}
.expectations__item {
    display: block;
    text-transform: uppercase;
}

.about-ydx {
    width: 100%;
    border: 1px solid transparent;
    border-top-color: grey;
}

.about-ydx__item-input {
    display: none;
}
.about-ydx__item-label {
    display: flex;
    width: 100%;
    cursor: pointer;
    padding-top: 0.7777777777777778em;
    justify-content: space-between;
    
}
.about-ydx-headline, .work-in-cm-headline, .why-yd-headline {
    color: var(--head-color);
    font: 1.125rem var(--header-font);
    line-height: 0.9;
}


.about-ydx__item-describe {
    height: 100%;
    font-family: var(--user-font);
    opacity: 0.7;
    transition: 0.3s ease-in-out;
    margin: 0.857em 0 1.42857em;    
}

.yscl-label:hover .about-ydx-headline,
.work-in-cm-label:hover .work-in-cm-headline, 
.why-yd-label:hover .why-yd-headline {
    color: #000;
}

.yscl-label:hover #school-label {
    stroke: #000;
}

.work-in-cm-label:hover #work-in-cm-path {
    stroke: #000;
}

.why-yd-label:hover #why-yd-path {
    stroke: #000;
}

#first:checked ~ .yscl-describe {
    height: 0;
    opacity: 0;
}
#first:checked ~ .yscl-label .about-ydx-headline {
    color: #000;
}

#first:checked ~ .yscl-label #school-label {
    stroke: #000;
    d: path('M8,0 v16 M0,8 h16');
}/*M8,0 v16 M0,8 h16*/

#second:checked ~ .work-in-cm-describe {
    height: 0;
    opacity: 0;
}
#second:checked ~ .work-in-cm-label .work-in-cm-headline {
    color: #000;
}

#second:checked ~ .work-in-cm-label #work-in-cm-path{
    stroke: #000;
    d: path('M8,0 v16 M0,8 h16');
}

#third:checked ~ .why-yd-describe {
    height: 0;
    opacity: 0;
}

#third:checked ~ .why-yd-label .why-yd-headline{
    color: #000;
}
#third:checked ~ .why-yd-label #why-yd-path {
    stroke: #000;
    d: path('M8,0 v16 M0,8 h16');
}
.why-yd-describe {
    margin-bottom: 3.92857em;
}

/**********************************
 * *****************************
 * next section my work
 * *****************************
 * ********************************/

.my-works {
    background-color: var(--my-work-bg-color);
}

.my-works__headline {
    font: 2rem var(--header-font);
    color: var(--my-work-font-color);
    margin: 1.625em auto 0.25em;
    text-align: center;
}

.my-work__describe {
    margin: 0 auto;
}
.my-works__wrapper {
	width: 100%;
}

.my-work__describe_item {
    opacity: 0.7;
    font-family: var(--user-font);
    text-align: center;
    color: var(--my-work-font-color);
}

.my-works__headline_items {
    font: 1.125rem var(--header-font);
    color: var(--my-work-font-color);
    line-height: 1.5;
    text-align: center;
    margin-top: 3.3333333em;
}

.my-works__headline_link {
    font-family: var(--user-font);
    color: var(--head-color);
    display: block;
    text-align: center;
    line-height: 1.42857;
    text-decoration: none;
    margin-bottom: 1.142857em;
    overflow: hidden;
}
.my-works__slider {
    position: relative;
    border: 1px solid transparent;
}

.my-works__pictures {
    position: relative;
    height: 50vw;
    max-height: 377px;
    width: 100%;
    max-width: 700px;
    margin: 0 auto;
    border-radius: 4px;
    overflow: hidden;
    box-shadow: 0 1px 2px rgba(0,0,0,0.08), 0 4px 12px rgba(0,0,0,0.12);
    margin-bottom: 3.42857em;
}
.my-works__pictures img {
    position: absolute;
    display: block;
    max-width: 100%;
    transition: transform 0.3s ease-in-out;
    transform: translateX(-100vw);
}

.my-works__slider_click {
    position: absolute;
    bottom: 16px;
    -webkit-appearance:none;
    width: 16px;
    height: 16px;
    outline: none;
    cursor: pointer;
}

.my-works__slider_click::before {
    content: "";
    display: block;
    width: 50%;
    height: 50%;
    margin: 25% auto;
    border: 1px solid #71ABFF;
    background: #71ABFF;
    border-radius: 50%;
}

.my-works__slider_click:hover::before {
    border-color:1 #fff;
    background: #fff;
}

.click-first {
    left: calc(50% - 32px);
}
.click-second {
    left: calc(50% - 16px);
}
.click-third {
    left: calc(50%);
}
.click-forth {
    left: calc(50% + 16px);
}

.click-third:checked::before,
.click-forth:checked::before,
.click-second:checked::before,
.click-first:checked::before {
    background: transparent;
}
.click-first:checked ~ .my-works__pictures #first-pic,
.click-second:checked ~ .my-works__pictures #second-pic,
.click-third:checked ~ .my-works__pictures #third-pic,
.click-forth:checked ~ .my-works__pictures #forth-pic {
    transform: translateX(0);
}

.text-slider {
    color: var(--my-work-font-color);
    text-align: justify;
    opacity: 0.8;
    margin-bottom: 1em;
}

/**********************************
 * *****************************
 * footer
 * *****************************
 * ********************************/

footer {
    background-color: var(--header-color-bg);
}
.footer-headline {
    text-align: center;
    margin-top: 1.625em;
    margin-bottom: 0.5em;
    font: 2rem var(--header-font);
}
.footer-link {
    max-width: 180px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    margin-bottom: 1.42857em;
}

.footer-link_item {
    display: block;
    position: relative;
    border-radius: 50%;
    height: 48px;
    overflow: hidden;
}
.footer-link_item::before {
    content: '';
    display: block;
    width: 100%;
    position: absolute;
    height: 48px;
    background: rgba(0,0,0,.0);
}

.fb-link:hover::before {
    background: rgba(0,0,0,.4);
}

.tw-link:hover::before {
    background: rgba(0,0,0,.45);
}

.tel-link:hover::before {
    background: rgba(0,0,0,.45);
}


.footer-text {
    font: 0.875rem/1.42857 var(--user-font);
    opacity: 0.7;
    text-align: center;
    margin-bottom: 1.42857em;
}
::placeholder {
    opacity: 0.3;
    font: 1rem/1.25 var(--main-font);
    color: var(--header-color-f-color);
}

.get_in_touch_text, .get_in_touch_email, .get_in_touch_area {
    width: 100%;
    margin-bottom: 1.142857em;
    padding: 0.42857em 0.857em 0.7142857em;
    border: 1px solid rgba(31,64,111,0.20);
    border-radius: 4px;
}

.get_in_touch_area {
    padding-bottom: 7.857em;
    margin-bottom: 1.142857em;
}
.add_test_button {
    border: 1px solid rgba(31,64,111,0.20);
    border-radius: 4px;
    background: transparent;
    font: 1rem/1.25 var(--main-font);
    color: var(--head-color);
    padding: 0.42857em 0.857em 0.7142857em;
    margin-bottom: 1.142857em;
}
.send_form_button {
    border-radius: 4px;
    margin-bottom: 3.7142857em;
}
.send_form_button:hover {
    background: var(--my-work-bg-color);
}
.send_form_button:active {
    opacity: 0.7;
}


@media (min-width: 400px) {
    
    .header-photo {
        max-width: 250px;
        max-height: 250px;
    }
    
}

@media (min-width: 600px) {
    .header-photo {
        max-width: 350px;
        max-height: 350px;
    }
    .form_line {
        width: 48.57%;
        display: inline-block;
    }
    .form_line:first-of-type {
        margin-right: calc(2.8% - 4px);
    }
    .my-works__slider_click {
        bottom: -16px;
    }
    
    .click-first {
        left: initial;
        right: 48px;
    }
    
    .click-second {
        left: initial;
        right: 32px;
    }
    
    .click-third {
        left: initial;
        right: 16px;
    }
    
    .click-forth {
        left: initial;
        right: 0;
    }
    .text-slider {
        max-width: 520px;
    }
    .my-works__pictures {
        margin-bottom: 1.45em;
    }
}


/* SECTION */

.experience-section {
    background-color: var(--my-work-bg-color);
    padding: 100px 20px 0;
    color: #fff;
}

.container {
    max-width: 1100px;
    margin: auto;
}

/* TITLE */

.section-title {
    text-align: center;
    margin-bottom: 70px;
}


.section-title h2 {
    font-size: 48px;
    margin-bottom: 15px;
}

.section-title p {
    color: #9ea7b8;
    font-size: 18px;
}

/* TIMELINE */

.timeline {
    position: relative;
    padding-left: 50px;
}

.timeline::before {
    content: "";
    position: absolute;
    left: 11px;
    top: 0;
    width: 2px;
    height: 100%;
    background: rgba(47, 128, 255, 0.3);
}

.timeline-item {
    position: relative;
    margin-bottom: 40px;
}

.timeline-dot {
    position: absolute;
    left: -49px;
    top: 35px;

    width: 20px;
    height: 20px;

    background: #2f80ff;
    border-radius: 50%;
    box-shadow: 0 0 15px #2f80ff;
}

/* CARD */

.experience-card {
    background: #232833;
    border: 1px solid rgba(47,128,255,0.2);
    border-radius: 20px;
    padding: 30px;

    transition: 0.3s;
}

.experience-card:hover {
    transform: translateY(-5px);
    border-color: #2f80ff;
    box-shadow: 0 10px 30px rgba(47,128,255,0.2);
}

.card-header {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 20px;
}

.card-header h3 {
    margin: 0;
    font-size: 28px;
}

.card-header span {
    color: #9ea7b8;
}

.date {
    color: #2f80ff;
    font-weight: 600;
}

.experience-card ul {
    margin: 25px 0;
    padding-left: 20px;
    color: #d0d4dc;
    line-height: 1.8;
}

/* TECH TAGS */

.tech-stack {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.tech-stack span {
    padding: 8px 16px;
    border: 1px solid #2f80ff;
    border-radius: 30px;
    color: #2f80ff;
    font-size: 14px;
    transition: 0.3s;
}

.tech-stack span:hover {
    background: #2f80ff;
    color: white;
}

/* MOBILE */

@media (max-width: 768px) {

    .timeline {
        padding-left: 30px;
    }

    .timeline-dot {
        left: -29px;
    }

    .section-title h2 {
        font-size: 36px;
    }

    .card-header {
        flex-direction: column;
    }
}