@font-face {
  font-family: 'SF Pro Display';
  font-weight: 300;
  src: url('assets/fonts/sfprodisplay-light.woff2') format('woff2'),
    url('/assets/fonts/sfprodisplay-light.woff') format('woff');
}
@font-face {
  font-family: 'SF Pro Display';
  font-weight: 400;
  src: url('assets/fonts/sfprodisplay-regular.woff2') format('woff2'),
    url('/assets/fonts/sfprodisplay-regular.woff') format('woff');
}
@font-face {
  font-family: 'SF Pro Display';
  font-weight: 600;
  src: url('assets/fonts/sfprodisplay-semibold.woff2') format('woff2'),
    url('/assets/fonts/sfprodisplay-semibold.woff') format('woff');
}

@font-face {
  font-family: 'SF Pro Text';
  font-weight: 400;
  src: url('assets/fonts/sfprotext-regular.woff2') format('woff2'),
    url('/assets/fonts/sfprotext-regular.woff') format('woff');
}
@font-face {
  font-family: 'SF Pro Text';
  font-weight: 600;
  src: url('assets/fonts/sfprotext-semibold.woff2') format('woff2'),
    url('/assets/fonts/sfprotext-semibold.woff') format('woff');
}

:root {
  /* Custom properties */
  --color-main-accent: #f5c029;
  --logo-color: #f5c029;
  --color-main-body: #232527;
  --color-nav: hsl(210, 5%, 15%);
  --color-text-body: #ccced0;
  --color-text-white: #f5f5f7;
  --color-outline-on-dark: #4e5257;

  --font-family-heading: 'SF Pro Display', Helvetica, Arial, sans-serif;
  --font-family-text: 'SF Pro Text', Helvetica, Arial, sans-serif;
  --font-weight-light: 300;
  --font-weight-regular: 400;
  --font-weight-bold: 600;

  /*
min-width: 1069 (67em = 1072px) H2: 65px; H3: 48px; p: 21px; line-height: 1.38; (small: 17px; line-height: 1.47); letter-spacing text: .011em; letter-spacing-H3: -0.003em; letter-spacing-H2: -0.005em; line-height H2: 1.07; line-height H3: 1.08;
1068 (min-width: 46em = 736px)  H2: 40px; H3: 32px; p: 17px; line-height: 1.47; (small: 17px; line-height: 1.47); letter-spacing text: -0.022em; letter-spacing-H3: .004em; letter-spacing-H2: 0em; line-height H2: 1.1; line-height H3: 1.125;
 734 (mobile до 734px)          H2: 32px ;H3: 32px; p: 17px; line-height: 1.47; (small: 17px; line-height: 1.47); letter-spacing text: -0.022em; letter-spacing-H3: .004em; letter-spacing-H2: .004em; line-height H2: 1.125; line-height H3: 1.125;

 Альтернативные Breakpoints на основе Statcounter may 2023: 700px, 1200px
  */

  --font-size-text: 1.063rem; /*18px*/
  --font-size-nav: 1rem; /*16px*/
  --font-size-footer: 0.875rem; /*14px*/
  /* --font-size-small: 0.75rem; 12px */
  --font-size-portfolio: 1.5rem;
  --font-size-medium: 2rem; /*32px*/
  --font-size-big: 2rem; /*32px*/

  --line-height-text: 1.47;
  --line-height-medium: 1.125;
  --line-height-big: 1.125;

  --letter-space-text: -0.022em;
  --letter-spacing-medium: 0.004em;
  --letter-spacing-big: 0.004em;

  --size-100: 0.25rem;
  --size-200: 0.5rem;
  --size-300: 0.75rem;
  --size-400: 1rem;
  --size-450: 1.3rem;
  --size-500: 1.5rem;
  --size-600: 2rem;
  --size-700: 3rem;
  --size-800: 4rem;
  --size-900: 5rem;

  --size-padding-top-1st-container: 0.6rem;
  --size-padding-container: 1.6rem;
}
@media (min-width: 46em) {
  :root {
    --font-size-big: 2.5rem; /*40px*/
    --letter-spacing-big: 0em;
    --line-height-medium: 1.125;
    --line-height-big: 1.1;
    --size-padding-top-1st-container: 1rem;
    --size-padding-container: 2rem;
  }
}

@media (min-width: 67em) {
  :root {
    --font-size-text: 1.3125rem; /*21px*/
    --font-size-nav: 1.063rem; /*18px*/
    --font-size-medium: 3rem; /*48px*/
    --font-size-big: 3.5rem; /*56px*/
    --font-size-portfolio: 2rem;
    --line-height-text: 1.38;
    --line-height-medium: 1.08;
    --line-height-big: 1.07;
    --letter-space-text: 0.011em;
    --letter-spacing-medium: -0.003em;
    --letter-spacing-big: -0.005em;
    --size-padding-top-1st-container: 2rem;
    --size-padding-container: 3rem;
  }
}

/* Box sizing rules */
*,
*::before,
*::after {
  box-sizing: border-box;
}

/* Remove default margin */
* {
  margin: 0;
  padding: 0;
  font: inherit;
}

/* Remove list styles on ul, ol elements with a list role, which suggests default styling will be removed */
ul[role='list'],
ol[role='list'] {
  list-style: none;
}

/* Set core root defaults */
html:focus-within {
  scroll-behavior: smooth;
}

html,
body {
  height: 100%;
  scroll-behavior: smooth;
}

/* Set core body defaults */
body {
  text-rendering: optimizeSpeed;
}

/* A elements that don't have a class get default styles */
a:not([class]) {
  text-decoration-skip-ink: auto;
}

/* Make images easier to work with */
img,
picture,
svg {
  max-width: 100%;
  display: block;
}

/* Remove all animations, transitions and smooth scroll for people that prefer not to see them */
@media (prefers-reduced-motion: reduce) {
  html:focus-within {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* Utility classes */

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.text-white {
  color: var(--color-text-white);
}

.text-body {
  color: var(--color-text-body);
}

.fs-big-heading {
  font-size: var(--font-size-big);
}

.fs-medium-heading {
  font-size: var(--font-size-medium);
}

.fs-footer {
  font-size: var(--font-size-footer);
}

.fs-small {
  font-size: var(--font-size-footer);
}

.fs-portfolio {
  font-size: var(--font-size-portfolio);
}

.fs-description {
  font-size: var(--font-size-nav);
}

.letter-spacing-big-heading {
  letter-spacing: var(--letter-spacing-big);
}

.letter-spacing-medium-heading {
  letter-spacing: var(--letter-spacing-medium);
}

.fw-regular {
  font-weight: var(--font-weight-regular);
}

.fw-bold {
  font-weight: var(--font-weight-bold);
}

.text-accent {
  color: var(--color-main-accent);
}

.logo-color {
  color: var(--logo-color);
}

.padding-block-600 {
  padding-block: var(--size-600);
}

.padding-top-600 {
  padding-top: var(--size-600);
}

.padding-bottom-400 {
  padding-bottom: var(--size-400);
}

.padding-1st-container {
  padding-top: var(--size-padding-top-1st-container);
  padding-bottom: var(--size-padding-container);
}

.padding-block-container {
  padding-block: var(--size-padding-container);
}

.text-center {
  text-align: center;
}

.line {
  border-bottom: 1px solid var(--color-outline-on-dark);
}

.centered {
  margin: auto;
}

.scroll-margin-top {
  scroll-margin-top: 6.5rem;
}

.wrap {
  flex-wrap: wrap;
}

.wrap > button {
  margin: 0;
}

/* General styling */

body {
  font-family: var(--font-family-text);
  font-size: var(--font-size-text);
  font-weight: var(--font-weight-regular);
  line-height: var(--line-height-text);
  letter-spacing: var(--letter-space-text);
  background-color: var(--color-main-body);
  color: var(--color-text-body);
}

h2 {
  color: var(--color-text-white);
  font-family: var(--font-family-heading);
  /* font-size: var(--font-size-big); */
  font-weight: var(--font-weight-bold);
  line-height: var(--line-height-big);
  letter-spacing: var(--letter-spacing-big);
}

h3 {
  color: var(--color-text-white);
  font-family: var(--font-family-heading);
  /* font-size: var(--font-size-medium); */
  font-weight: var(--font-weight-bold);
  line-height: var(--line-height-medium);
  letter-spacing: var(--letter-spacing-medium);
}

.primary-header {
  position: sticky;
  top: 0;
  padding-top: 2rem;
  padding-bottom: 1.5rem;
  background-color: var(--color-nav);
  transition: background-color 250ms, padding 500ms;
}

/* .primary-header {
  margin-top: var(--size-600);
} */

a {
  color: var(--color-text-white);
  /* text-decoration: none; */
}

:is(a:hover, a:focus-visible) {
  position: relative;
  color: var(--color-main-accent);
  outline: 0;
}

.skip-link {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  padding: 0.5rem;
  text-align: center;
  transform: translate(0, -100%);
}
/* .skip-link:focus {
  transform: translate(0, 0);
} */

p {
  margin: 1em 0;
}

pre {
  white-space: pre-line;
}

.container {
  --max-width: 90rem;
  --padding: 1rem;

  width: min(var(--max-width), 100% - (var(--padding) * 2));
  margin-inline: auto;
}

.stacked {
  display: grid;
  justify-items: start;
  align-items: end;
  /* isolation: isolate; */
}
.stacked img {
  width: 100%;
  aspect-ratio: 16/7;
  object-fit: cover;
}

.stacked > div:nth-child(2) {
  align-items: end;
  padding: 0 2rem 2rem 2rem;
}

.stacked > * {
  grid-column: 1/-1;
  grid-row: 1/-1;
}

@media (max-width: 46em) {
  .stacked img {
    aspect-ratio: 16/10;
  }
}
button {
  padding: 10px 15px;
  margin-top: var(--size-400);
  transition: 250ms;
  background-color: var(--color-main-body);
  text-transform: uppercase;
  text-align: center;
  border: 2px solid var(--color-text-white);
  cursor: pointer;
}

button a {
  text-decoration: none;
}
button a:hover {
  color: var(--color-text-white);
}

button:hover:not(.mobile-nav-toggle, .currency_converter___button),
button:focus-visible:not(.mobile-nav-toggle, .currency_converter___button) {
  background-color: var(--color-outline-on-dark);
  border: 2px solid var(--color-outline-on-dark);
}

.logo {
  display: flex;
  align-items: baseline;
}

.logo a {
  text-decoration: none;
}

@media (min-width: 46em) {
  .logo {
    flex-direction: column;
  }
}

@media (min-width: 67em) {
  .logo {
    flex-direction: row;
  }
}

.arrow {
  width: var(--size-500);
  aspect-ratio: 1;
  fill: none;
  color: var(--color-main-accent);
  background-color: transparent;
}

.button-arrow {
  display: grid;
  place-items: center;
  position: fixed;
  top: 50%;
  right: 1rem;
  transform: translateY(-50%);

  padding: var(--size-200) var(--size-500);
  border: none;
  border-radius: var(--size-100);
  background-color: rgb(0, 0, 0, 0.2);
  box-shadow: 0 0 0.7em 0.1em var(--color-main-accent);
  cursor: pointer;
}

@media (min-width: 46em) {
  .arrow {
    width: var(--size-600);
  }
}

@media (min-width: 67em) {
  .arrow {
    width: var(--size-700);
  }
}

/* Lazy load */
.blurred-img {
  z-index: -1;
  position: relative;
  background-repeat: no-repeat;
  background-size: cover;
  background-position: center;
}
.blurred-img:before {
  content: '';
  position: absolute;
  inset: 0;
  animation: pulse 2.5s infinite;
}
@keyframes pulse {
  0% {
    background-color: rgba(255, 255, 255, 0.05);
  }
  50% {
    background-color: rgba(255, 255, 255, 0.15);
  }
  100% {
    background-color: rgba(255, 255, 255, 0.05);
  }
}
.blurred-img img {
  opacity: 0;
  transition: opacity 200ms ease-in-out;
}
.blurred-img.loaded img {
  opacity: 1;
}

.blurred-img.loaded:before {
  content: none;
}

/* Navigation */

.primary-header.sticking-nav {
  padding-top: 1rem;
  --color-nav: hsla(210, 5%, 15%, 0.95);
  box-shadow: 0 0.5rem 1rem -0.25rem rgba(0, 0, 0, 0.3);
  --logo-color: #4e5257;
  /* border-bottom: 1px solid #4e5257; */
}

.nav-wrapper {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.mobile-nav-toggle {
  display: none;
  /* z-index: 10; */
}

.nav-list {
  display: flex;
  gap: var(--size-400);
  font-weight: var(--font-weight-bold);
  font-size: var(--font-size-nav);
}

.nav-list a {
  text-decoration: none;
}

.nav-list a:hover::before,
.nav-list a:focus-visible::before {
  content: '';
  position: absolute;
  top: var(--size-700);
  left: 0;
  width: 100%;
  height: var(--size-100);
  background-color: var(--color-main-accent);
}

.nav-icons {
  display: block;
  width: calc(var(--font-size-nav) * 2);
  aspect-ratio: 1/1;
  fill: var(--color-outline-on-dark);
}

@media (min-width: 46em) {
  .nav-icons {
    display: none;
  }
}

@media (min-width: 67em) {
  .nav-icons {
    display: none;
  }
}

@media (max-width: 46em) {
  .primary-navigation {
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    height: 100dvh;
    padding: var(--size-500) var(--size-900) var(--size-500) var(--size-500);
    background-color: var(--color-main-body);
    transform: translateX(-100%);
    transition: 350ms;
    /* box-shadow: 0 0 0 100vmax rgb(130, 0, 0, 0.35); */
  }

  li {
    display: flex;
    gap: calc(2 * var(--font-size-nav));
    align-items: center;
  }

  .primary-header[data-overlay]::before {
    content: '';
    position: fixed;
    inset: 0;
    background: rgb(0, 0, 0, 0.6);
  }

  .primary-navigation[data-visible] {
    transform: translateX(0);
    /* display: block; */
  }

  .nav-list {
    display: grid;
  }

  .nav-list :is(a:hover, a:focus-visible) {
    position: static;
    color: var(--color-text-white);
  }

  .nav-list a:hover::before {
    top: auto;
    left: 0;
    transform: translateY(-0.25em);
    height: 2em;
    z-index: -1;
    background-color: var(--color-outline-on-dark);
    opacity: 0.4;
  }

  .mobile-nav-toggle {
    display: block;
    position: fixed;
    /* top: var(--size-700); */
    right: var(--size-400);
    cursor: pointer;
    background: transparent;
    fill: red;
    border: 0;
    padding: 0.5em;
  }

  .icon-hamburger {
    width: 25px;
    height: 18px;
  }

  .icon-close {
    width: 25px;
    height: 22px;
  }

  .hide {
    display: none;
  }
}

/* Footer */

.footer-nav a {
  text-decoration: none;
  font-size: var(--font-size-footer);
  color: var(--color-text-body);
}

.footer-nav :is(a:hover, a:focus-visible) {
  color: var(--color-main-accent);
  outline: 0;
}

.nav-list-footer {
  display: flex;
  gap: var(--size-400);
}

.footer-columns {
  display: grid;
  gap: 1rem;
}

@media (min-width: 67em) {
  .footer-columns {
    grid-auto-flow: column;
    grid-auto-columns: 1fr;
  }
}

/* Section About me */

.resume {
  position: relative;
  left: 50%;
  transform: translateX(-50%);
}

.grid-cells2 {
  display: grid;
  gap: var(--size-400);
}

.grid-cells2 img {
  /* border: 1px solid #000; */
  object-fit: fill;
  /* object-position: center; */
  max-height: 20rem;
  /* aspect-ratio: auto; */
}

@media (min-width: 46em), (min-width: 67em) {
  .grid-cells2 {
    grid-template-columns: 1fr 1fr;
  }
}

.skif-image {
  max-width: 300px;
}
@media (min-width: 46em) {
  .skif-image {
    max-width: 350px;
  }
}
@media (min-width: 67em) {
  .skif-image {
    max-width: 500px;
  }
}

.tools-in-row {
  display: flex;
  /* justify-content: center; */
  gap: var(--size-400);
  align-items: center;
  flex-wrap: wrap;
}
.tools-in-row > * {
  display: flex;
  flex-direction: column;
  align-items: center;
}
.tools-in-row p {
  margin-top: 0;
}

.tools-in-row svg {
  flex-shrink: 0;
  width: var(--size-700);
  aspect-ratio: 6/7;
  fill: var(--color-outline-on-dark);
  /* color: var(--color-outline-on-dark); */
}

@media (min-width: 46em) {
  .tools-in-row svg {
    width: var(--size-800);
  }
}

.certificates {
  display: grid;
  gap: var(--size-400);
}

@media (min-width: 46em) {
  .certificates {
    grid-template-columns: 1fr 1fr;
  }
}

.grid-cells {
  display: grid;
  justify-content: center;
  align-items: start;
  gap: var(--size-400);
}

.grid-cells > div {
  display: flex;
  align-items: center;
  gap: var(--size-600);
}

.grid-cells svg {
  flex-shrink: 0;
  width: var(--size-800);
  aspect-ratio: 6/7;
  fill: var(--color-outline-on-dark);
  color: var(--color-outline-on-dark);
}

.grid-cells svg:hover,
.tools-in-row svg:hover {
  fill: var(--color-main-accent);
  color: var(--color-main-accent);
}

@media (min-width: 46em), (min-width: 67em) {
  .grid-cells {
    grid-template-columns: 1fr 1fr;
  }
  .grid-cells svg {
    width: var(--size-900);
  }
}

/* Portfolio section */

.portfolio-grid {
  display: grid;
  grid-auto-columns: 1fr;
  grid-template-areas:
    'api'
    'game'
    'commerce'
    'exchange'
    'portfolio'
    'loveopium';
  gap: 1rem;
}

.portfolio-grid img {
  /* max-width: 100%; */
  aspect-ratio: 17/10;
  object-fit: cover;
  margin-bottom: var(--size-400);
}

.card {
  padding: var(--size-200);
  cursor: pointer;
}

.card:hover {
  /* max-width: 100%; */
  /* transform: translateY(-0.5rem); */
  box-shadow: 0 0 0.5rem 0.3rem rgb(255, 255, 255, 0.1);
}

.portfolio-grid > div > a {
  text-decoration: none;
}
.portfolio-grid > div > a {
  color: var(--color-text-white);
}

/* a:has(.card) p:hover {
  color: red;
} */

/* .big-card {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--size-400);
} */

/* .big-card img {
  grid-column: span 2;
} */

.buttons-in-row {
  display: flex;
  gap: var(--size-400);
  align-items: center;
}

.portfolio-grid > div:nth-child(1) {
  grid-area: api;
}
.portfolio-grid > div:nth-child(2) {
  grid-area: game;
}
.portfolio-grid > div:nth-child(3) {
  grid-area: commerce;
}
.portfolio-grid > div:nth-child(4) {
  grid-area: exchange;
}
.portfolio-grid > div:nth-child(5) {
  grid-area: portfolio;
}
.portfolio-grid > div:nth-child(6) {
  grid-area: loveopium;
}

@media (min-width: 46em), (min-width: 67em) {
  .portfolio-grid {
    grid-template-areas:
      'api game commerce'
      'exchange portfolio loveopium';
  }
}

.section-blog {
  aspect-ratio: 16/9;
  object-fit: cover;
}