* {
  margin: 0;
  padding: 0;
  box-sizing: content-box;
  font-family: "Kelly Slab", sans-serif;
  /* font-family: "Lora", serif; */
  scroll-behavior: smooth;
}

*::selection {
  background-color: var(--brend-color);
  color: black;
}

html {
  min-height: 100%;
  min-width: 100%;
}

svg {
  width: 100%;
  height: 100%;
}

div.detailts-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.5s ease-out;
}

details[open] + div.detailts-content {
  max-height: 5500px;
  transition: max-height 2s ease-out;
}

.cormorant-regular p, b{
    font-family: "Cormorant Infant", sans-serif;
    font-size: var(--font-size-30px);
    font-weight: 700;
}

.cormorant-regular p{
    font-family: "Cormorant Infant", sans-serif;
    font-size: var(--font-size-22px);
    font-weight: 500;
}
:root {
  --text-color: rgb(255, 255, 255);
  --border-color: grey;
  --window-background-color: hsl(0, 0%, 5%);
  --background-color: hsla(0, 0%, 5%, 1);
  --button-border-color: grey;
  --button-background-color: hsla(0, 0%, 15%, 0.5);
  --brend-color: hsl(180, 100%, 50%);
  --brend-shadow-color: hsl(210, 100%, 50%);

  --difficulty-easy: hsl(120, 100%, 70%);
  --difficulty-medium: hsl(70, 100%, 70%);
  --difficulty-hard: hsl(35, 100%, 70%);
  --difficulty-very-hard: hsl(0, 100%, 70%);

  --technology-languages: hsl(120, 80%, 50%);
  --technology-frameworks: hsl(190, 80%, 50%);
  --technology-work-environment: hsl(250, 80%, 50%);
  --technology-methodologies: hsl(335, 80%, 50%);

  --angular-gradient-of-light-70: linear-gradient(
    335deg,
    rgba(0, 0, 0, 0) 70%,
    rgba(255, 255, 255, 0.8) 100%
  );

  --angular-gradient-of-light-80: linear-gradient(
    335deg,
    rgba(0, 0, 0, 0) 80%,
    rgba(236, 236, 236, 0.8) 100%
  );

  --angular-gradient-of-light-candy: linear-gradient(
    335deg,
    rgba(0, 0, 0, 0.2) 0%,
    rgba(0, 0, 0, 0) 30%,
    rgba(0, 0, 0, 0) 80%,
    rgba(236, 236, 236, 0.8) 100%
  );
}

:root{
    --font-size-16px: 16px;
    --font-size-18px: 18px;
    --font-size-20px: 20px;
    --font-size-22px: 22px;
    --font-size-24px: 24px;
    --font-size-26px: 26px;
    --font-size-30px: 30px;
    --font-size-34px: 34px;
    --font-size-40px: 40px;
}
:root{
    --animation-duration-01s: 0.1s;
    --animation-duration-03s: 0.3s;
    --animation-duration-05s: 0.5s;
    --animation-duration-07s: 0.7s;
    --animation-duration-1s: 1s;
}
:root{
    --offset-5px: 5px;
    --offset-8px: 8px;
    --offset-10px: 10px;
    --offset-15px: 15px;
    --offset-20px: 20px;
    --offset-30px: 30px;
    --offset-40px: 40px;
}
:root{
    --border-thickness-thin: 1px;
    --border-thickness-medium: 2px;
    --border-thickness-thick: 3px;

    --small-border-radius: 5px;
    --average-border-radius: 10px;
    --big-border-radius: 15px;
}
:root{
    --content-max-width: 1200px;
    --content-min-width: auto;
}
.body {
  max-width: var(--content-max-width);
  min-width: var(--content-min-width);
  margin-top: 80px;
  margin-right: auto;
  margin-left: auto;
  padding: 0 10px;

  font-weight: 400;
  font-size: large;
  font-style: normal;

  color: var(--text-color);
  background-color: var(--window-background-color);
  background-image: none;
  background-repeat: space;
  background-size: 100% 100%;

  backdrop-filter: none;
}

.brand {
  margin: 0 var(--offset-20px);

  font-size: var(--font-size-34px);
  font-weight: 900;
  text-decoration: none;
  text-shadow: 0 0 40px var(--brend-shadow-color);

  color: var(--brend-color);

  transition: text-shadow var(--animation-duration-05s);
}

.brand:hover {
  text-shadow: 0 0 20px var(--brend-shadow-color);
}

.brand:focus {
  text-shadow: 0 0 20px var(--brend-shadow-color);
}

.button {
  display: inline flex;
  padding: var(--offset-5px);
  align-items: center;
  justify-content: center;
  gap: var(--offset-5px);

  text-align: center;
  background-color: var(--button-background-color);
  border: 1px solid var(--button-border-color);
  border-radius: var(--average-border-radius);

  transition: all var(--animation-duration-05s);
}

.button:hover {
  font-size: 20px;
  background-color: lch(from var(--button-background-color) calc(l + 30) c h);
}

.button:focus {
  font-size: 20px;
  background-color: lch(from var(--button-background-color) calc(l + 30) c h);
}

.button_link {
  font-size: large;
  color: var(--text-color);
  text-decoration: none;
  box-shadow: 1px 1px 2px var(--text-color);
}
.button_certificate {
  color: black;
  background: linear-gradient(340deg, hsl(60, 100%, 50%) 55%, hsl(25, 100%, 40%) 100%);
  border: var(--border-thickness-medium) solid hsl(0, 100%, 25%);
  box-shadow: 3px 3px 0 hsl(60, 100%, 25%), 6px 6px 5px rgb(0, 0, 0);
}

.button_certificate:hover {
  font-size: inherit;
  box-shadow: 1px 1px 0 hsl(60, 100%, 25%), 2px 2px 5px rgb(0, 0, 0);
  border-color: hsl(100, 100%, 35%);
}

.button_certificate:focus {
  font-size: inherit;
  box-shadow: 1px 1px 0 hsl(60, 100%, 25%), 2px 2px 5px rgb(0, 0, 0);
  border-color: hsl(100, 100%, 35%);
}

.button_header {
  padding: 5px var(--offset-10px);

  text-wrap: nowrap;
  font-size: large;
  font-weight: 600;
}

.button_non-effect {
  display: inline flex;
  padding: var(--offset-5px);
  gap: var(--offset-5px);

  text-align: center;
  background-color: var(--button-background-color);
  border: 1px solid var(--button-border-color);
  border-radius: var(--average-border-radius);
}

.button_open-theme {
  color: black;
  background-color: var(--brend-color);
}

.button_open-theme:hover {
  font-size: 20px;
  background-color: lch(from var(--brend-color) calc(l + 30) c h);
}

.button_open-theme:focus {
  font-size: 20px;
  background-color: lch(from var(--brend-color) calc(l + 30) c h);
}

.centerer {
  display: flex;
  justify-content: center;
  align-items: center;
}

.bulb {
  display: block;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: gold;
  box-shadow: 0 0 2px gold;
  animation: bulb-pulsate 2s infinite alternate;
}

@keyframes bulb-pulsate {
  to {
    box-shadow: 0 0 10px gold;
  }
}

.bulb_green {
  background: greenyellow;
  box-shadow: 0 0 2px greenyellow;
  animation: bulb-pulsate_green 2s infinite alternate;
}

@keyframes bulb-pulsate_green {
  to {
    box-shadow: 0 0 10px greenyellow;
  }
}

.bulb_red {
  background: red;
  box-shadow: 0 0 2px red;
  animation: bulb-pulsate_red 2s infinite alternate;
}

@keyframes bulb-pulsate_red {
  to {
    box-shadow: 0 0 10px rgb(255, 0, 0);
  }
}

.difficulty-tag{
    display: inline;
    position: absolute;
    padding: 5px;
    top: 0;
    right: 0;

    font-size: large;
    font-weight: 600;
    text-align: center;

    color: #000;
    background-color: #ccc;
    border: 2px solid #333;
    border-radius: var(--average-border-radius);
    box-shadow: 2px 2px 5px #fff;
}
.difficulty-tag_theme_easy{
    background-color: var(--difficulty-easy);
    border-color: hsl(from var(--difficulty-easy) h s calc(l - 30));
    box-shadow: 0 0 var(--offset-10px) hsl(from var(--difficulty-easy) h s calc(l - 30));
}

.difficulty-tag_theme_easy::after{
    content: "Easy";
}
.difficulty-tag_theme_medium{
    background-color: var(--difficulty-medium);
    border-color: hsl(from var(--difficulty-medium) h s calc(l - 30));
    box-shadow: 0 0 var(--offset-10px) hsl(from var(--difficulty-medium) h s calc(l - 30));
}

.difficulty-tag_theme_medium::after{
    content: "Medium";
}
.difficulty-tag_theme_hard{
    background-color: var(--difficulty-hard);
    border-color: hsl(from var(--difficulty-hard) h s calc(l - 30));
    box-shadow: 0 0 var(--offset-10px) hsl(from var(--difficulty-hard) h s calc(l - 30));
}

.difficulty-tag_theme_hard::after{
    content: "Hard";
}
.difficulty-tag_theme_very-hard{
    background-color: var(--difficulty-very-hard);
    border-color: hsl(from var(--difficulty-very-hard) h s calc(l - 30));
    box-shadow: 0 0 var(--offset-10px) hsl(from var(--difficulty-very-hard) h s calc(l - 30));
}

.difficulty-tag_theme_very-hard::after{
    content: "Very hard";
}
.dropdown {
  display: none;
  position: relative;
}

.dropdown:hover .dropdown__content {
  display: flex;
}

.dropdown__content {
  position: absolute;
  top: 0;
  right: 0;
  z-index: 1;

  display: none;
  justify-content: center;
  align-items: center;
  flex-direction: column;
  padding: var(--offset-10px);
  gap: var(--offset-10px);

  border: var(--border-thickness-thin) solid var(--border-color);
  border-radius: var(--average-border-radius);
  background-color: var(--window-background-color);
  box-shadow: 0 0 var(--offset-10px) 0 var(--text-color);
}

.exit-button{
    display: block;
    position: fixed;
    width: 35px;
    height: 35px;
    right: 0;
    top: 0;
    margin: 5px;

    /* color: var(--text-color); todo */
    color: white;
    font-size: larger;
    line-height: 35px;
    font-weight: 600;
    /* background-color: var(--background-color); todo */
    background-color: black;
    /* border-color: var(--text-color); todo */
    border-color: white;
    border-radius: var(--average-border-radius);
    
    cursor: pointer;
    transition: 
    background-color var(--animation-duration-03s);
}

.exit-button:hover{
    background-color: lch(from var(--background-color) calc(l - 15) c h);
}

.exit-button:focus{
    background-color: lch(from var(--background-color) calc(l - 15) c h);
}
.footer {
  width: 100%;
  min-width: var(--content-min-width);
  margin: 0 auto var(--offset-10px) auto;
  padding: var(--offset-10px) 0;

  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;

  background-color: var(--button-background-color);
  border: 1px solid var(--border-color);
  border-radius: var(--average-border-radius);
}

.footer__header{
    display: flex;
    gap: var(--offset-5px);

    font-size: larger;
    font-weight: 600;
}
.glare-of-light {
  position: relative;
}

.glare-of-light::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border-radius: inherit;
  background: var(--angular-gradient-of-light-70);
  pointer-events: none;
}

.icon {
  display: inline-block;
  width: 40px;
  height: 40px;
  fill: currentColor;
}

.icon_circle {
  border-radius: 50%;
}

.icon_small {
  width: 24px;
  height: 24px;
}

.icon_square {
  display: inline-block;
  position: relative;
  height: 30px;
  width: 30px;

  background-color: black;
  box-shadow: 0 0 2px black;
  border-radius: 25%;
}
.icon_light-theme {
  background-color: white;
  box-shadow: 0 0 2px white;
}

.image-content-grid{
    display: grid;
    justify-content: center;
    grid-template-columns: repeat(4, 1fr);

    @media (min-width: 750px) and (max-width: 1100px) {
        grid-template-columns: repeat(3, 1fr);
    };

    @media (max-width: 750px) {
        grid-template-columns: repeat(2, 1fr);
    };
}

.image-content-grid-2-columns{
    display: grid;
    justify-content: center;
    grid-template-columns: repeat(2, 1fr);

    @media (max-width: 750px) {
        grid-template-columns: 1fr;
    };
}
.info-container{
    position: relative;
    padding: var(--offset-10px);
    margin: var(--offset-10px) 0;

    border: 1px solid var(--border-color);
    border-radius: var(--average-border-radius);
    background-color: var(--background-color);
}
.info-container__description{
    margin: var(--offset-10px);
}
.info-container__list {
  margin-left: 20px;
  margin-bottom: 10px;
}

.info-container__name {
  display: inline-block;
  font-size: 22px;

  transition: color var(--animation-duration-03s);
}

.info-container__name:hover {
  color: var(--brend-color);
}

.info-container__summary{
    position: relative;
    padding-right: 120px;
    
    font-size: larger;
    font-weight: 600;

    cursor: pointer;
}
.info-container__video{
    display: flex;
    justify-content: center;
    align-items: center;
    margin: var(--offset-20px) var(--offset-20px);

    border: var(--border-thickness-thin) solid var(--border-color);
    border-radius: var(--average-border-radius);
    box-shadow: 0 0 var(--offset-15px) var(--text-color);
}
.info-container__other-skills {
  display: flex;
  flex-direction: row;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--offset-5px);
}

.link{
    color: var(--text-color);
    text-decoration: none;

    transition: font-size var(--animation-duration-03s);
}

.link:hover{
    font-size: calc(1em + 4px);
}

.link:focus{
    font-size: calc(1em + 4px);
}
.link_contact{
    display: flex;
    align-items: center;
    gap: var(--offset-5px);

    font-size: large;
}
.link_stack{
    color: white;
    text-decoration: none;
}
.link_inner{
    font-weight: 600;
    font-size: var(--font-size-20px);
}
.link_theme_dashed{
    text-decoration: underline;
    text-decoration-style: dashed;
}
.navigation{
    display: flex;
    position: fixed;
    width: 100%;
    min-width: var(--content-min-width);
    height: 50px;
    left: 0;
    right: 0;
    top: 0;
    padding: 5px 0;

    justify-content: center;
    align-items: center;

    color: var(--text-color);
    border-bottom: 1px solid var(--border-color);
    background-color: var(--background-color);
    backdrop-filter: blur(var(--offset-10px));
    
    z-index: 1;
}
.navigation__menu{
    display: flex;
    gap: var(--offset-5px);
}
.popup-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
  
    background-color: rgba(0, 0, 0, 0.8);
  }
.popup-overlay__popup {
    display: flex;
    position: absolute;
    justify-content: center;
    align-items: center;
    width: calc(100% - var(--offset-40px));
    
    top: 50%;
    left: 50%;
    margin: 0 auto;
    padding: var(--offset-10px);
    transform: translate(-50%, -50%);
  
    background-color: hsla(0, 0%, 0%, 0.5);
    box-shadow: 0 0 var(--offset-10px) white;
    border-radius: var(--average-border-radius);
    
    z-index: 2;
    object-fit: cover;
}
.popup-overlay__extended-image{
    height: 100%;
    max-width: 100%;
    max-height: 1000px;
  }
.project-type{
    margin-top: var(--offset-40px);
}
.project-type__header {
    font-size: var(--font-size-26px);
    font-weight: 600;
    text-align: center;

    animation: text-pulsate 5s infinite alternate;
}

@keyframes text-pulsate {
    to {
        text-shadow: 0 0 30px var(--brend-color);
    }
}

.project-type__header-line {
  display: block;
  height: 2px;
  width: 100%;
  margin: 0 auto;

  background-color: rgba(0, 247, 255, 0.1);
  animation: box-pulsate 5s infinite alternate;
}

@keyframes box-pulsate {
  to {
    box-shadow: 0 0 var(--offset-10px) var(--brend-color);
    background-color: rgba(0, 195, 255, 0.575);
  }
}

.project-version {
  text-align: center;
  padding: var(--offset-5px);
  margin-bottom: var(--offset-30px);

  display: inline flex;
  gap: var(--offset-5px);

  color: var(--text-color);
  background-color: var(--background-color);
  border: solid 1px;
  border-radius: 5px;

  border-color: hsl(from var(--text-color) h s calc(l + 10));
  box-shadow: 2px 2px 3px var(--text-color);
}

.stack-description {
  display: inline-flex;
  margin-top: var(--offset-10px);
  margin-bottom: var(--offset-20px);
  flex-wrap: wrap;
  align-items: center;
  row-gap: 5px;

  font-size: larger;
  font-weight: 600;
  line-height: var(--offset-40px);
}

.stack-description_theme_languages{
    margin: var(--offset-5px) 0 var(--offset-10px) 0;
    color: var(--technology-languages);
}
.stack-description_theme_frameworks{
    margin: var(--offset-10px) 0;
    color: var(--technology-frameworks);
}
.stack-description_theme_work-environment{
    margin: var(--offset-10px) 0;
    color: var(--technology-work-environment);
}
.stack-description_theme_methodologies{
    margin: var(--offset-10px) 0;
    color: var(--technology-methodologies);
}
.tag {
  display: inline-block;
  padding: 5px 10px;
  border: 1px solid currentColor;
  border-radius: 14px 5px;
}

.tag__update {
  background-color: rgb(0, 173, 92);
  background: linear-gradient(90deg, #33f1ff, #33ff4e, #33f1ff);
  background-size: 200% auto;
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: gradientAnimation 3s linear infinite;
}

@keyframes gradientAnimation {
  from {
    background-position: 0% center;
  }
  to {
    background-position: 200% center;
  }
}

.tag__at-work {
  color: rgb(255, 225, 0);
}

.technology-unit {
  display: inline;
  margin: 0px 4px;
  height: 25px;
  padding: 0 var(--offset-10px);

  font-size: var(--font-size-18px);
  text-align: center;
  font-weight: 600;
  line-height: 25px;

  border: var(--border-thickness-medium) solid;
  border-radius: 8px;

  cursor: pointer;
  transition: font-size var(--animation-duration-05s);
}

.technology-unit:hover {
  font-size: var(--font-size-20px);
}

.technology-unit:focus {
  font-size: var(--font-size-20px);
}

.technology-unit_theme_frameworks {
  background-color: hsl(from var(--technology-frameworks) h s calc(l - 20));
  border-color: hsl(from var(--technology-frameworks) h s calc(l + 10));
  box-shadow: 0 0 var(--offset-10px) var(--technology-frameworks),
    3px 3px 0 hsl(from var(--technology-frameworks) h s calc(l - 30)),
    5px 5px var(--offset-5px) black;
}

.technology-unit_theme_languages {
  background-color: hsl(from var(--technology-languages) h s calc(l - 20));
  border-color: hsl(from var(--technology-languages) h s calc(l + 10));
  box-shadow: 0 0 var(--offset-10px) var(--technology-languages),
    3px 3px 0 hsl(from var(--technology-languages) h s calc(l - 30)),
    5px 5px var(--offset-5px) black;
}

.technology-unit_theme_work-environment {
  background-color: hsl(from var(--technology-work-environment) h s calc(l - 20));
  border-color: hsl(from var(--technology-work-environment) h s calc(l + 10));
  box-shadow: 0 0 var(--offset-10px) var(--technology-work-environment),
    3px 3px 0 hsl(from var(--technology-work-environment) h s calc(l - 30)),
    5px 5px var(--offset-5px) black;
}

.technology-unit_theme_methodologies {
  background-color: hsl(from var(--technology-methodologies) h s calc(l - 20));
  border-color: hsl(from var(--technology-methodologies) h s calc(l + 10));
  box-shadow: 0 0 var(--offset-10px) var(--technology-methodologies),
    3px 3px 0 hsl(from var(--technology-methodologies) h s calc(l - 30)),
    5px 5px var(--offset-5px) black;
}

.terminal{
  margin-top: var(--offset-10px);
  padding: var(--offset-5px);
  background-color: rgb(from var(--text-color) r g b / 0.1);
  border-radius: var(--small-border-radius);
}
.terminal__code {
  margin-top: var(--offset-5px);
  padding: 0 var(--offset-5px);

  color: rgb(0, 255, 0);
  background-color: black;
  border-radius: var(--small-border-radius);
}

.theme-toggle{
    display: flex;
    box-sizing: border-box;
    width: 45px;
    height: 45px;
    margin-left: 10px;
    justify-content: center;
    align-items: center;
    cursor: pointer;

    transition: padding var(--animation-duration-03s);
}

.theme-toggle:hover{
    padding: 2px;
    border: 1px solid var(--text-color);
    border-radius: var(--average-border-radius);
}
.promo-card{
    display: flex;
    flex-direction: column;
    padding: 8px;
    margin: 5px;
    transform: perspective(2000px) rotatey(0deg) rotatex(0deg);

    text-align: center;
    background-image: linear-gradient(to top, rgba(0, 0, 0, 0), var(--button-border-color));

    border: 1px solid var(--border-color);
    border-radius: var(--average-border-radius);

    cursor: pointer;
    transition: 
    filter var(--animation-duration-05s),
    transform var(--animation-duration-03s) ease;
}

.promo-card:hover{
    filter: drop-shadow(0 0 0.75rem var(--text-color)); 
}

.promo-card:focus{
    filter: drop-shadow(0 0 0.75rem var(--text-color)); 
}
.promo-card__animated-border {
    display: flex;
    margin-bottom: 5px;
    --angle: 0deg;

    animation: 10s rotate linear infinite;
}

@keyframes rotate {
    to {
        --angle: 360deg;
    }
}

@property --angle {
  syntax: '<angle>';
  initial-value: 0deg;
  inherits: false;
}
.recursive-mirror {
  padding: 4px;
  background-color: rgba(0, 255, 221, 0.1);
  border: 1px solid rgba(11, 149, 184, 0.671);
  border-radius: 10px;

  transition: padding 0.3s;
}

.recursive-mirror:hover {
  padding: 3px;
}

.recursive-mirror_full-width{
    width: calc(100% - var(--offset-10px))
}
.image{
    max-width: 100%;
    max-height: 100%;
}