/* ==========================================================================
   Staut — site styles
   ========================================================================== */

:root {
  --paper: #e7e8e4;
  --surface: #f3f4f1;
  --white: #ffffff;
  --ink: #17191a;
  --ink-2: #222526;
  --accent: #00875a;
  --accent-dark: #006b47;
  --accent-soft: #bfe8d4;
  --muted: #55595a;
  --line: rgba(23, 25, 26, 0.16);
  --line-dark: rgba(255, 255, 255, 0.16);
  --muted-dark: rgba(255, 255, 255, 0.68);

  --font-display: "Unbounded", "Arial Black", sans-serif;
  --font-text: "Onest", "Helvetica Neue", Arial, sans-serif;

  --container: 1280px;
  --gutter: 48px;
  --radius: 28px;
  --header-h: 84px;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-h);
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-text);
  font-size: 18px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

img {
  display: block;
  max-width: 100%;
  height: auto;
}

a {
  color: inherit;
  text-decoration: none;
}

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

h1,
h2,
h3 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: -0.03em;
}

h1 {
  font-size: clamp(44px, 7.4vw, 112px);
  line-height: 1;
}

h2 {
  font-size: clamp(30px, 3.8vw, 52px);
  line-height: 1.1;
}

h3 {
  font-size: 24px;
  line-height: 1.25;
  letter-spacing: -0.02em;
}

p,
ul,
ol {
  margin: 0;
}

.container {
  width: 100%;
  max-width: calc(var(--container) + var(--gutter) * 2);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

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

/* ---------- Logo ---------- */

.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.04em;
}

.logo svg {
  width: 32px;
  height: 32px;
  flex: none;
}

/* ---------- Buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 18px 30px;
  border: 1.5px solid transparent;
  border-radius: 100px;
  font: 500 17px/1 var(--font-text);
  cursor: pointer;
  transition: background-color 0.2s, color 0.2s, border-color 0.2s;
}

.btn--primary {
  background: var(--accent);
  color: var(--white);
}

.btn--primary:hover {
  background: var(--accent-dark);
}

.btn--line {
  border-color: currentColor;
  background: transparent;
}

.btn--line:hover {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--white);
}

.btn--light {
  background: var(--accent-soft);
  color: var(--ink);
}

.btn--light:hover {
  background: var(--white);
}

.btn[disabled] {
  opacity: 0.6;
  cursor: wait;
}

/* ---------- Header ---------- */

.header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 100;
  height: var(--header-h);
  border-bottom: 1px solid var(--line);
  background: rgba(231, 232, 228, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.header__inner {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 32px;
  height: 100%;
}

.nav {
  display: contents;
}

.nav__list {
  justify-self: center;
}

.header__end {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 16px;
}

.header__cta {
  padding: 13px 22px;
  font-size: 15px;
}

.nav__list {
  display: flex;
  gap: 32px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.nav__list a,
.lang a {
  font-size: 15px;
  font-weight: 500;
}

.nav__list a {
  position: relative;
  padding: 6px 0;
}

.nav__list a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.25s;
}

.nav__list a:hover::after {
  transform: scaleX(1);
}

.lang a:hover {
  color: var(--accent);
}

.lang {
  display: flex;
  padding: 3px;
  border: 1px solid var(--line);
  border-radius: 100px;
}

.lang a {
  padding: 6px 12px;
  border-radius: 100px;
  font-size: 13px;
}

.lang a[aria-current="true"] {
  background: var(--ink);
  color: var(--white);
}

.burger {
  display: none;
  width: 44px;
  height: 44px;
  padding: 11px 10px;
  border: 0;
  background: none;
  color: var(--ink);
  cursor: pointer;
}

.burger span {
  display: block;
  height: 2px;
  margin: 5px 0;
  background: currentColor;
  transition: transform 0.3s, opacity 0.3s;
}

.header.is-open .burger span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.header.is-open .burger span:nth-child(2) {
  opacity: 0;
}

.header.is-open .burger span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ---------- Sections ---------- */

.section {
  padding: 128px 0;
}

.section--flush {
  padding-top: 0;
}

.section-head {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: end;
  margin-bottom: 64px;
}

.section-head p {
  max-width: 520px;
  color: var(--muted);
}

.dark {
  background: var(--ink);
  color: var(--white);
}

.dark .section-head p {
  color: var(--muted-dark);
}

/* ---------- Hero ---------- */

.hero {
  padding: calc(var(--header-h) + 40px) 0 0;
}

.hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
  gap: 48px;
  min-height: min(calc(100svh - var(--header-h) - 40px), 760px);
}

.hero__content {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 48px;
  padding: 32px 0 8px;
}

.hero__title {
  font-size: clamp(40px, 5.2vw, 76px);
  line-height: 1.02;
}

.hero__title span {
  display: block;
  animation: rise 0.9s cubic-bezier(0.2, 0.7, 0.2, 1) both;
}

.hero__title span:nth-child(2) {
  animation-delay: 0.08s;
}

.hero__title span:nth-child(3) {
  animation-delay: 0.16s;
}

@keyframes rise {
  from {
    transform: translateY(0.35em);
  }
}

.hero__lead {
  max-width: 34em;
  margin: 32px 0;
  color: var(--muted);
  font-size: 19px;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.hero__clients {
  display: block;
  padding-top: 20px;
  border-top: 1px solid var(--line);
}

.hero__clients span {
  display: block;
  margin-bottom: 6px;
  color: var(--muted);
  font-size: 15px;
}

.hero__clients strong {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 500;
  letter-spacing: -0.02em;
  transition: color 0.2s;
}

.hero__clients:hover strong {
  color: var(--accent);
}

.hero__media img {
  width: 100%;
  height: 100%;
  min-height: 460px;
  object-fit: cover;
  object-position: 42% center;
  border-radius: var(--radius);
}

/* ---------- Ticker ---------- */

.ticker {
  overflow: hidden;
  margin-top: 96px;
  padding: 26px 0;
  background: var(--ink);
  color: var(--white);
  user-select: none;
}

.ticker__track {
  display: flex;
  width: max-content;
  animation: ticker 40s linear infinite;
}

.ticker__item {
  display: flex;
  align-items: center;
  gap: 36px;
  padding-right: 36px;
  font-family: var(--font-display);
  font-size: 36px;
  font-weight: 500;
  letter-spacing: -0.03em;
  white-space: nowrap;
}

.ticker__item::after {
  content: "";
  width: 14px;
  height: 14px;
  background: var(--accent);
}

@keyframes ticker {
  to {
    transform: translateX(-50%);
  }
}

/* ---------- Services ---------- */

.services__list {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.service {
  display: grid;
  grid-template-columns: 168px 1fr 1fr;
  gap: 40px;
  align-items: center;
  padding: 28px 0;
  border-bottom: 1px solid var(--line);
}

.service img {
  width: 168px;
  height: 64px;
  object-fit: cover;
  border-radius: 100px;
}

.service p {
  max-width: 440px;
  color: var(--muted);
  font-size: 17px;
}

.services__more {
  margin-top: 48px;
}

/* ---------- Stack ---------- */

.stack__grid {
  display: grid;
  grid-template-columns: repeat(9, 1fr);
  gap: 40px 24px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.stack__grid img {
  width: 72px;
  margin: 0 auto;
  filter: invert(1);
  opacity: 0.85;
}

/* ---------- Statement ---------- */

.statement {
  margin: 0 var(--gutter);
  padding: 112px 0 96px;
  border-radius: var(--radius);
  background: var(--accent);
  color: var(--white);
}

.statement__text {
  max-width: 18em;
  font-size: clamp(30px, 4.4vw, 64px);
  line-height: 1.12;
  letter-spacing: -0.035em;
}

.statement__foot {
  display: flex;
  justify-content: flex-end;
  margin-top: 64px;
  padding-top: 28px;
  border-top: 1px solid rgba(255, 255, 255, 0.3);
}

.btn--on-accent {
  border-color: var(--white);
  color: var(--white);
}

.btn--on-accent:hover {
  background: var(--white);
  color: var(--accent-dark);
}

/* ---------- Portfolio ---------- */

.portfolio__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 56px 40px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.project {
  display: block;
}

.project__media {
  display: block;
  overflow: hidden;
  padding: 24px 24px 0;
  border-radius: var(--radius);
  background: var(--surface);
}

.project__media img {
  width: 100%;
  transition: transform 0.5s cubic-bezier(0.2, 0.7, 0.2, 1);
}

.project:hover .project__media img {
  transform: translateY(-8px);
}

.project__meta {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 16px;
  margin-top: 20px;
}

.project__meta span {
  color: var(--muted);
  font-size: 16px;
}

.project:hover h3 {
  color: var(--accent);
}

/* ---------- Partners ---------- */

.partners {
  overflow: hidden;
  padding: 72px 0;
}

.partners__track {
  display: flex;
  align-items: center;
  width: max-content;
  animation: ticker 50s linear infinite;
}

.partners img {
  width: auto;
  height: 48px;
  max-width: 170px;
  margin-right: 88px;
  object-fit: contain;
  filter: grayscale(1) brightness(1.7);
  opacity: 0.75;
}

/* ---------- Contact ---------- */

.contact {
  padding-top: 0;
}

.contact__grid {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 64px;
  padding-top: 112px;
  border-top: 1px solid var(--line-dark);
}

.contact__lead {
  margin-top: 24px;
  color: var(--muted-dark);
}

.contact__direct {
  margin: 40px 0 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-display);
  font-size: 22px;
  letter-spacing: -0.02em;
}

.contact__direct li + li {
  margin-top: 10px;
}

.contact__direct address {
  max-width: 22em;
  color: var(--muted-dark);
  font-family: var(--font-text);
  font-size: 17px;
  font-style: normal;
  letter-spacing: 0;
}

.contact__direct a:hover {
  color: var(--accent-soft);
}

.form {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.form__full {
  grid-column: 1 / -1;
}

.form label {
  display: block;
  margin-bottom: 8px;
  color: var(--muted-dark);
  font-size: 14px;
}

.form input,
.form textarea {
  width: 100%;
  padding: 16px 20px;
  border: 1px solid var(--line-dark);
  border-radius: 16px;
  background: var(--ink-2);
  color: var(--white);
  font: inherit;
  font-size: 16px;
  transition: border-color 0.2s;
}

.form textarea {
  min-height: 140px;
  resize: vertical;
}

.form input:focus,
.form textarea:focus {
  outline: none;
  border-color: var(--accent-soft);
}

.form__hp {
  position: absolute;
  left: -9999px;
}

.form__actions {
  grid-column: 1 / -1;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 20px;
  margin-top: 10px;
}

.form__status {
  font-size: 15px;
}

.form__status.is-error {
  color: #ffb4b4;
}

/* ---------- Footer ---------- */

.footer {
  padding: 0 0 40px;
  font-size: 15px;
}

.footer__inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 24px;
  padding-top: 32px;
  border-top: 1px solid var(--line-dark);
  color: var(--muted-dark);
}

.footer__links {
  display: flex;
  gap: 28px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.footer a:hover {
  color: var(--white);
}

/* ---------- Back to top ---------- */

.to-top {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 50;
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border: 0;
  border-radius: 50%;
  background: var(--ink);
  color: var(--white);
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s, visibility 0.3s;
}

.to-top.is-visible {
  opacity: 1;
  visibility: visible;
}

.to-top svg {
  width: 16px;
  height: 16px;
}

/* ==========================================================================
   Case pages
   ========================================================================== */

.case-hero {
  padding: calc(var(--header-h) + 72px) 0 0;
}

.case-hero__type {
  margin-top: 16px;
  color: var(--muted);
  font-family: var(--font-display);
  font-size: clamp(22px, 2.4vw, 34px);
  letter-spacing: -0.02em;
}

.case-hero__row {
  display: grid;
  grid-template-columns: minmax(0, 640px) auto;
  justify-content: space-between;
  gap: 48px;
  align-items: end;
  margin-top: 48px;
}

.case-hero__text p + p,
.case-hero__text ul,
.case-hero__text ol {
  margin-top: 12px;
}

.case-hero__text ul,
.case-hero__text ol {
  padding-left: 22px;
}

.case-slider {
  display: flex;
  gap: 20px;
  margin-top: 64px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scrollbar-width: none;
  padding: 0 var(--gutter);
  scroll-padding: 0 var(--gutter);
}

.case-slider::-webkit-scrollbar {
  display: none;
}

.case-slider img {
  flex: 0 0 min(860px, 84vw);
  aspect-ratio: 16 / 9;
  object-fit: cover;
  object-position: top;
  border-radius: var(--radius);
  background: var(--surface);
  scroll-snap-align: start;
}

.case-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.case-list li {
  padding-top: 24px;
  border-top: 2px solid var(--ink);
}

.case-list h3 {
  margin-bottom: 14px;
  font-size: 21px;
}

.case-list p {
  color: var(--muted);
  font-size: 17px;
}

.case-list__step {
  display: block;
  margin-bottom: 12px;
  color: var(--accent);
  font-weight: 600;
  font-size: 15px;
}

.counters {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  margin: 0 0 72px;
  padding: 0;
  list-style: none;
}

.counter {
  padding-top: 24px;
  border-top: 1px solid var(--line);
}

.counter__num {
  display: block;
  margin-bottom: 8px;
  color: var(--accent);
  font-family: var(--font-display);
  font-size: clamp(48px, 5.6vw, 80px);
  font-weight: 600;
  letter-spacing: -0.04em;
  line-height: 1;
}

.counter__label {
  color: var(--muted);
}

.case-gallery {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 20px;
}

.case-gallery figure {
  margin: 0;
  overflow: hidden;
  border-radius: var(--radius);
  background: var(--surface);
}

.case-gallery figure:nth-child(3n + 1) {
  grid-row: span 2;
}

.case-gallery img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top;
}

.case-nav {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  padding-top: 40px;
  border-top: 1px solid var(--line);
}

.case-nav a {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.case-nav a:last-child {
  text-align: right;
}

.case-nav small {
  color: var(--muted);
  font-size: 15px;
}

.case-nav strong {
  font-family: var(--font-display);
  font-size: clamp(24px, 3vw, 40px);
  font-weight: 600;
  letter-spacing: -0.03em;
}

.case-nav a:hover strong {
  color: var(--accent);
}

/* ---------- Reduced motion ---------- */

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .hero__title span,
  .ticker__track,
  .partners__track {
    animation: none;
  }
}

/* ==========================================================================
   Responsive
   ========================================================================== */

@media (max-width: 1100px) {
  .stack__grid {
    grid-template-columns: repeat(6, 1fr);
  }

  .nav__list {
    gap: 24px;
  }
}

@media (max-width: 1024px) {
  :root {
    --gutter: 32px;
    --header-h: 72px;
  }

  .header__inner {
    display: flex;
    justify-content: space-between;
  }

  .burger {
    display: block;
  }

  .nav {
    display: flex;
    position: fixed;
    inset: var(--header-h) 0 auto;
    flex-direction: column;
    align-items: flex-start;
    gap: 28px;
    padding: 24px var(--gutter) 40px;
    background: var(--paper);
    box-shadow: 0 1px 0 var(--line);
    transform: translateY(-120%);
    visibility: hidden;
    transition: transform 0.35s, visibility 0.35s;
  }

  .header.is-open .nav {
    transform: none;
    visibility: visible;
  }

  .nav__list {
    flex-direction: column;
    justify-self: auto;
    gap: 18px;
  }

  .header__end {
    justify-content: flex-start;
  }

  .nav__list a {
    font-family: var(--font-display);
    font-size: 26px;
    letter-spacing: -0.03em;
  }

  .section {
    padding: 96px 0;
  }

  .section--flush,
  .contact {
    padding-top: 0;
  }

  .hero__grid,
  .section-head,
  .contact__grid,
  .case-hero__row {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .hero__grid {
    min-height: 0;
  }

  .hero__content {
    padding-top: 8px;
  }

  .hero__media img {
    min-height: 0;
    height: 420px;
  }

  .service {
    grid-template-columns: 140px 1fr;
    gap: 24px;
  }

  .service img {
    width: 140px;
    height: 54px;
  }

  .service p {
    grid-column: 2;
  }

  .case-list,
  .counters {
    grid-template-columns: 1fr;
    gap: 32px;
  }
}

@media (max-width: 767px) {
  :root {
    --gutter: 16px;
    --radius: 20px;
  }

  body {
    font-size: 17px;
  }

  h3 {
    font-size: 21px;
  }

  .hero__media img {
    min-height: 0;
    height: 300px;
  }

  .ticker {
    margin-top: 64px;
    padding: 18px 0;
  }

  .ticker__item {
    font-size: 24px;
    gap: 24px;
    padding-right: 24px;
  }

  .ticker__item::after {
    width: 10px;
    height: 10px;
  }

  .section {
    padding: 72px 0;
  }

  .section-head {
    margin-bottom: 40px;
  }

  .service {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .service p {
    grid-column: auto;
  }

  .stack__grid {
    grid-template-columns: repeat(4, 1fr);
    gap: 24px 12px;
  }

  .stack__grid img {
    width: 56px;
  }

  .statement {
    margin: 0 var(--gutter);
    padding: 64px 0 48px;
  }

  .statement__foot {
    justify-content: flex-start;
    margin-top: 40px;
  }

  .portfolio__grid,
  .form {
    grid-template-columns: 1fr;
  }

  .project__media {
    padding: 14px 14px 0;
  }

  .partners {
    padding: 48px 0;
  }

  .partners img {
    height: 36px;
    margin-right: 56px;
  }

  .contact__grid {
    padding-top: 72px;
  }

  .contact__direct {
    font-size: 19px;
  }

  .footer__inner,
  .footer__links {
    flex-direction: column;
    gap: 12px;
  }

  .case-slider {
    gap: 12px;
  }

  .case-gallery {
    grid-template-columns: 1fr;
  }

  .case-gallery figure:nth-child(3n + 1) {
    grid-row: auto;
  }

  .case-nav {
    flex-direction: column;
  }

  .case-nav a:last-child {
    text-align: left;
  }
}