:root {
  --paper: #eee9de;
  --cobalt: #112d9c;
  --signal: #ff522f;
  --ink-soft: #33458f;
  --line: color-mix(in srgb, var(--cobalt) 72%, transparent);
  --gutter: clamp(1rem, 3vw, 2.5rem);
  --radius: 1.25rem;
  --ease-out: cubic-bezier(.16, 1, .3, 1);
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  background: var(--paper);
}

body {
  margin: 0;
  min-width: 320px;
  overflow-x: hidden;
  background:
    linear-gradient(90deg, transparent calc(100% - 1px), color-mix(in srgb, var(--cobalt) 10%, transparent) 0) 0 0 / clamp(2.5rem, 6vw, 6rem) 100%,
    var(--paper);
  color: var(--cobalt);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 1rem;
  line-height: 1.45;
  -webkit-font-smoothing: antialiased;
}

body.menu-open { overflow: hidden; }

a { color: inherit; }

button,
a { -webkit-tap-highlight-color: transparent; }

:focus-visible {
  outline: 3px solid var(--signal);
  outline-offset: 4px;
}

::selection {
  background: var(--signal);
  color: white;
}

.skip-link {
  position: fixed;
  left: 1rem;
  top: -5rem;
  z-index: 200;
  padding: .8rem 1rem;
  background: var(--signal);
  color: white;
  font-weight: 800;
  text-decoration: none;
  transition: top .25s;
}

.skip-link:focus { top: 1rem; }

.site-header {
  position: relative;
  z-index: 50;
  display: grid;
  grid-template-columns: 1fr auto;
  min-height: 5rem;
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--paper) 92%, transparent);
}

.wordmark {
  display: flex;
  align-items: center;
  gap: .65rem;
  padding: 0 var(--gutter);
  font-size: clamp(.75rem, 1vw, .9rem);
  font-weight: 900;
  letter-spacing: -.02em;
  text-decoration: none;
  text-transform: uppercase;
}

.wordmark span {
  color: var(--signal);
  font-size: .72em;
  letter-spacing: .14em;
}

.site-menu {
  display: flex;
  align-items: stretch;
  border-left: 1px solid var(--line);
}

.site-menu a {
  display: grid;
  place-items: center;
  min-width: 9rem;
  padding: 0 1.4rem;
  border-right: 1px solid var(--line);
  font-size: .72rem;
  font-weight: 800;
  letter-spacing: .08em;
  text-decoration: none;
  text-transform: uppercase;
  transition: background-color .3s, color .3s;
}

.site-menu a:last-child {
  border-right: 0;
  background: var(--cobalt);
  color: var(--paper);
}

.site-menu a:hover {
  background: var(--signal);
  color: white;
}

.menu-toggle {
  display: none;
  width: 4.25rem;
  border: 0;
  border-left: 1px solid var(--line);
  background: transparent;
  color: var(--cobalt);
}

.menu-toggle span {
  width: 1.55rem;
  height: 2px;
  background: currentColor;
  transition: transform .35s var(--ease-out);
}

.menu-toggle[aria-expanded="true"] span:first-child { transform: translateY(3px) rotate(45deg); }
.menu-toggle[aria-expanded="true"] span:last-child { transform: translateY(-3px) rotate(-45deg); }

.grid-section {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(18rem, .55fr);
  border-bottom: 1px solid var(--line);
}

.hero { min-height: calc(100svh - 5rem); }

.hero-copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-width: 0;
  padding: clamp(4rem, 8vw, 8rem) var(--gutter) clamp(3rem, 6vw, 6rem);
}

.eyebrow {
  margin: 0;
  font-size: clamp(.62rem, .72vw, .75rem);
  font-weight: 900;
  letter-spacing: .18em;
  line-height: 1.2;
  text-transform: uppercase;
}

.hero h1 {
  max-width: 13ch;
  margin: clamp(1.5rem, 3vw, 2.6rem) 0;
  font-size: clamp(4rem, 9.2vw, 10rem);
  font-weight: 900;
  letter-spacing: -.085em;
  line-height: .78;
}

.hero h1 em {
  display: block;
  margin-left: clamp(1.5rem, 8vw, 9rem);
  color: var(--signal);
  font-family: Georgia, 'Times New Roman', serif;
  font-weight: 400;
  letter-spacing: -.075em;
}

.hero-lead {
  max-width: 42rem;
  margin: clamp(1rem, 3vw, 2.8rem) 0 0;
  color: var(--ink-soft);
  font-size: clamp(1rem, 1.35vw, 1.35rem);
  line-height: 1.55;
}

.hero-aside {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-width: 0;
  padding: var(--gutter);
  border-left: 1px solid var(--line);
}

.hero-aside > p {
  max-width: 17rem;
  margin: 0;
  font-size: .69rem;
  font-weight: 800;
  letter-spacing: .1em;
  line-height: 1.5;
  text-transform: uppercase;
}

.availability {
  display: flex;
  align-items: center;
  gap: .6rem;
}

.availability i {
  display: inline-block;
  width: .6rem;
  height: .6rem;
  border-radius: 50%;
  background: #31b66f;
  box-shadow: 0 0 0 .3rem color-mix(in srgb, #31b66f 18%, transparent);
}

.orbit-cta {
  position: relative;
  display: grid;
  place-items: center;
  align-self: center;
  width: min(13rem, 76%);
  aspect-ratio: 1;
  border-radius: 50%;
  background: var(--signal);
  color: white;
  font-size: clamp(.9rem, 1.1vw, 1.1rem);
  font-weight: 900;
  letter-spacing: .03em;
  line-height: 1.15;
  text-align: center;
  text-decoration: none;
  text-transform: uppercase;
  transform: rotate(7deg);
  transition: transform .65s var(--ease-out), box-shadow .65s var(--ease-out);
}

.orbit-cta::before,
.orbit-cta::after {
  content: '';
  position: absolute;
  inset: -.9rem;
  border: 1px solid var(--signal);
  border-radius: 50%;
  opacity: .35;
}

.orbit-cta::after { inset: -1.7rem; opacity: .12; }

.orbit-cta:hover {
  box-shadow: 0 1.5rem 4rem color-mix(in srgb, var(--signal) 35%, transparent);
  transform: rotate(0) scale(1.04);
}

.work { scroll-margin-top: 1rem; }

.section-heading {
  display: grid;
  grid-template-columns: .7fr 1.3fr auto;
  align-items: end;
  gap: 2rem;
  padding: clamp(3rem, 6vw, 6rem) var(--gutter) clamp(1.5rem, 3vw, 2.5rem);
  border-bottom: 1px solid var(--line);
}

.section-heading h2,
.about h2 {
  margin: 0;
  font-size: clamp(2.8rem, 5.5vw, 6rem);
  letter-spacing: -.065em;
  line-height: .9;
}

.section-heading > span {
  font-size: .72rem;
  font-weight: 900;
  letter-spacing: .12em;
}

.project-grid {
  display: grid;
  grid-template-columns: 1.2fr .8fr .8fr;
  border-bottom: 1px solid var(--line);
}

.project {
  --rx: 0deg;
  --ry: 0deg;
  position: relative;
  display: flex;
  flex-direction: column;
  min-width: 0;
  min-height: 37rem;
  padding: var(--gutter);
  overflow: hidden;
  border-right: 1px solid var(--line);
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  color: var(--cobalt);
  text-decoration: none;
  transform-origin: center;
}

.project:last-child { border-right: 0; }

.project::after {
  content: '';
  position: absolute;
  inset: 0;
  z-index: -1;
  background: var(--cobalt);
  transform: translateY(101%);
  transition: transform .6s var(--ease-out);
}

.project:hover { color: var(--paper); }
.project:hover::after { transform: translateY(0); }

.project-index {
  font-size: .63rem;
  font-weight: 900;
  letter-spacing: .13em;
  text-transform: uppercase;
}

.project h3 {
  margin: clamp(2rem, 4vw, 4rem) 0 .75rem;
  font-size: clamp(2.6rem, 4.5vw, 5rem);
  letter-spacing: -.065em;
  line-height: .9;
}

.project p {
  max-width: 28rem;
  margin: 0;
  color: currentColor;
  font-size: clamp(.87rem, 1vw, 1rem);
  opacity: .78;
}

.project-art {
  position: relative;
  display: block;
  width: 100%;
  min-height: 14rem;
  margin-top: auto;
  overflow: hidden;
  border: 1px solid currentColor;
  background: white;
  aspect-ratio: 4 / 3;
  transition: transform .7s var(--ease-out), box-shadow .7s var(--ease-out);
}

.project:hover .project-art {
  box-shadow: 0 1.5rem 4rem #070d2d55;
  transform: translateY(-.45rem);
}

.project-open {
  display: flex;
  justify-content: space-between;
  margin-top: 1rem;
  font-size: .68rem;
  font-weight: 900;
  letter-spacing: .12em;
  text-transform: uppercase;
}

/* Sonarium artwork */
.project-sonarium .project-art {
  background:
    radial-gradient(circle at 23% 32%, #edf854 0 11%, transparent 11.5%),
    radial-gradient(circle at 78% 63%, #fb4669 0 18%, transparent 18.5%),
    linear-gradient(145deg, #10172d 0 58%, #242d55 58%);
}

.project-sonarium .project-art::before {
  content: '';
  position: absolute;
  left: 14%;
  bottom: -22%;
  width: 53%;
  height: 76%;
  border: 1px solid #edf854;
  border-radius: 50% 50% 10% 10%;
  transform: rotate(-12deg);
}

.sonarium-wordmark {
  position: absolute;
  right: 7%;
  top: 10%;
  z-index: 1;
  display: grid;
  width: max-content;
  color: #f7f2ea;
  font-size: clamp(.85rem, 1.35vw, 1.45rem);
  font-weight: 900;
  letter-spacing: -.04em;
  line-height: .9;
  text-align: left;
}

.sonarium-wordmark > span {
  display: block;
  white-space: nowrap;
}

/* Docly artwork */
.project-docly .project-art {
  background-color: #f5f2eb;
  background-image: linear-gradient(#17271c14 1px, transparent 1px), linear-gradient(90deg, #17271c14 1px, transparent 1px);
  background-size: 1.5rem 1.5rem;
}

.project-docly .project-art::before {
  content: 'D';
  position: absolute;
  right: 4%;
  bottom: -22%;
  color: #ff5235;
  font-size: clamp(8rem, 14vw, 15rem);
  font-weight: 900;
  letter-spacing: -.12em;
  line-height: 1;
}

.project-docly .project-art::after {
  content: 'ПОНЯТЬ ГЛАВНОЕ';
  position: absolute;
  left: 8%;
  top: 9%;
  width: 7ch;
  color: #17271c;
  font-size: clamp(.8rem, 1.4vw, 1.3rem);
  font-weight: 900;
  line-height: .9;
}

/* Flowmate artwork */
.project-flowmate .project-art {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 5%;
  padding: 10%;
  background: #eaf1f4;
}

.project-flowmate .project-art i {
  position: relative;
  display: block;
  border-radius: .45rem;
  background: #20343e;
}

.project-flowmate .project-art i:nth-child(2) { background: #f4b72b; transform: translateY(12%); }
.project-flowmate .project-art i:nth-child(3) { background: #76b5c5; transform: translateY(-6%); }

.project-flowmate .project-art i::before,
.project-flowmate .project-art i::after {
  content: '';
  position: absolute;
  left: 14%;
  right: 14%;
  height: 17%;
  border-radius: .25rem;
  background: #fff9;
}

.project-flowmate .project-art i::before { top: 17%; }
.project-flowmate .project-art i::after { top: 43%; }

.about {
  grid-template-columns: minmax(18rem, .7fr) minmax(0, 1.3fr);
}

.about > div { padding: clamp(4rem, 8vw, 8rem) var(--gutter); }

.about > div:last-child {
  border-left: 1px solid var(--line);
}

.about h2 { max-width: 9ch; margin-top: 2rem; }

.about-copy {
  max-width: 52rem;
  margin: 0;
  font-size: clamp(1.4rem, 2.7vw, 3rem);
  letter-spacing: -.035em;
  line-height: 1.17;
}

.skill-list {
  display: flex;
  flex-wrap: wrap;
  gap: .65rem;
  margin: clamp(3rem, 6vw, 6rem) 0 0;
  padding: 0;
  list-style: none;
}

.skill-list li {
  padding: .72rem 1rem;
  border: 1px solid var(--cobalt);
  border-radius: 99rem;
  font-size: .68rem;
  font-weight: 900;
  letter-spacing: .11em;
  text-transform: uppercase;
  transition: background-color .3s, color .3s, transform .3s;
}

.skill-list li:hover {
  background: var(--signal);
  color: white;
  transform: translateY(-3px);
}

.contact {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 92svh;
  padding: clamp(4rem, 8vw, 8rem) var(--gutter) var(--gutter);
  overflow: hidden;
  background: var(--cobalt);
  color: var(--paper);
}

.contact h2 {
  max-width: 12ch;
  margin: clamp(3rem, 8vw, 7rem) 0;
  font-size: clamp(4rem, 10vw, 10rem);
  letter-spacing: -.08em;
  line-height: .88;
}

.contact-line {
  display: block;
  white-space: nowrap;
}

.contact-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: clamp(1.2rem, 2vw, 2rem) 0;
  border-top: 1px solid var(--paper);
  border-bottom: 1px solid var(--paper);
  color: var(--paper);
  font-size: clamp(1.2rem, 2.7vw, 2.8rem);
  font-weight: 900;
  letter-spacing: -.035em;
  text-decoration: none;
  transition: color .35s, padding .5s var(--ease-out);
}

.contact-link span {
  display: grid;
  place-items: center;
  width: 2.3em;
  aspect-ratio: 1;
  border-radius: 50%;
  background: var(--signal);
  color: white;
  transition: transform .5s var(--ease-out);
}

.contact-link:hover { color: var(--signal); padding-left: 1rem; }
.contact-link:hover span { transform: rotate(45deg) scale(1.06); }

.site-footer {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 2rem;
  align-items: center;
  min-height: 5rem;
  padding: 0 var(--gutter);
  border-top: 1px solid color-mix(in srgb, var(--paper) 35%, transparent);
  background: var(--cobalt);
  color: var(--paper);
  font-size: .65rem;
  font-weight: 800;
  letter-spacing: .1em;
  text-transform: uppercase;
}

.site-footer a { justify-self: end; }

.motion-ready [data-reveal] {
  opacity: 0;
  transform: translateY(2rem);
  transition: opacity .8s var(--ease-out), transform .8s var(--ease-out);
}

.motion-ready [data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (hover: hover) and (pointer: fine) {
  .project {
    transform: perspective(1000px) rotateX(var(--rx, 0deg)) rotateY(var(--ry, 0deg));
    transition: transform .35s var(--ease-out), color .35s;
  }
}

@media (max-width: 980px) {
  .grid-section { grid-template-columns: minmax(0, 1.2fr) minmax(15rem, .8fr); }
  .hero h1 { font-size: clamp(4rem, 11vw, 7.5rem); }
  .section-heading { grid-template-columns: 1fr auto; }
  .section-heading h2 { grid-column: 1 / -1; grid-row: 2; margin-top: 1.5rem; }
  .project-grid { grid-template-columns: 1fr 1fr; }
  .project:first-child { grid-column: 1 / -1; min-height: 40rem; border-right: 0; border-bottom: 1px solid var(--line); }
  .project:nth-child(2) { border-right: 1px solid var(--line); }
  .about { grid-template-columns: minmax(15rem, .75fr) 1.25fr; }
}

@media (max-width: 760px) {
  body { background: var(--paper); }

  .site-header {
    position: sticky;
    top: 0;
    min-height: 4.25rem;
    background: color-mix(in srgb, var(--paper) 93%, transparent);
    backdrop-filter: blur(14px);
  }

  .wordmark { font-size: .68rem; }
  .wordmark span { display: none; }

  .menu-toggle {
    display: grid;
    place-content: center;
    gap: 4px;
  }

  .site-menu {
    position: fixed;
    inset: 4.25rem 0 auto;
    display: grid;
    border: 0;
    border-bottom: 1px solid var(--line);
    background: var(--paper);
    transform: translateY(-130%);
    transition: transform .45s var(--ease-out);
  }

  .site-menu.is-open { transform: translateY(0); }

  .site-menu a {
    min-height: 4rem;
    border: 0;
    border-top: 1px solid var(--line);
  }

  .hero,
  .about { grid-template-columns: 1fr; }

  .hero { min-height: auto; }

  .hero-copy { min-height: calc(100svh - 4.25rem); padding-top: 5.5rem; }

  .hero h1 {
    max-width: 100%;
    font-size: clamp(4rem, 20vw, 6.3rem);
    line-height: .8;
  }

  .hero h1 em { margin-left: 0; }

  .hero-lead { margin-top: 2rem; font-size: 1rem; }

  .hero-aside,
  .about > div:last-child {
    min-height: 32rem;
    border-left: 0;
    border-top: 1px solid var(--line);
  }

  .orbit-cta { width: min(13rem, 62vw); }

  .section-heading {
    grid-template-columns: 1fr auto;
    padding-top: 4rem;
  }

  .section-heading h2 { font-size: clamp(3rem, 14vw, 4.6rem); }

  .project-grid { grid-template-columns: 1fr; }

  .project,
  .project:first-child {
    grid-column: auto;
    min-height: 35rem;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .project:last-child { border-bottom: 0; }

  .project h3 { font-size: clamp(3.2rem, 15vw, 4.8rem); }
  .project-art { min-height: 15rem; }

  .about > div { padding-top: 4.5rem; padding-bottom: 4.5rem; }
  .about > div:last-child { min-height: auto; }
  .about-copy { font-size: 1.65rem; }

  .contact { min-height: 80svh; padding-top: 4.5rem; }
  .contact h2 { font-size: clamp(3.15rem, 15vw, 6rem); }

  .site-footer {
    grid-template-columns: 1fr auto;
    gap: .5rem;
    min-height: 6rem;
  }

  .site-footer > span:nth-child(2) { display: none; }
}

@media (max-width: 380px) {
  .hero h1 { font-size: 3.65rem; }
  .contact h2 { font-size: 3.65rem; }
  .project { min-height: 32rem; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    scroll-behavior: auto !important;
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }

  [data-reveal] {
    opacity: 1 !important;
    transform: none !important;
  }
}