:root {
  color-scheme: light dark;
  --bg: #f3f4f0;
  --surface: #ffffff;
  --surface-soft: #e9ece7;
  --ink: #17201f;
  --ink-soft: #596461;
  --line: #cbd1cb;
  --accent: #0e6665;
  --accent-strong: #075150;
  --accent-action: #0e6665;
  --accent-action-ink: #ffffff;
  --accent-soft: #d9e9e5;
  --dark: #102625;
  --dark-ink: #f4f7f3;
  --dark-soft: #afbfba;
  --focus: #ffbf47;
  --shadow: 0 18px 60px rgba(24, 45, 42, 0.09);
  --radius: 2px;
  --shell: min(1180px, calc(100% - 40px));
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #111716;
    --surface: #19201f;
    --surface-soft: #202927;
    --ink: #eef2ee;
    --ink-soft: #aab5b0;
    --line: #37413e;
    --accent: #68b8b0;
    --accent-strong: #89cec7;
    --accent-action: #2d7774;
    --accent-action-ink: #102625;
    --accent-soft: #193d3a;
    --dark: #091211;
    --dark-ink: #f2f5f1;
    --dark-soft: #a9bab4;
    --shadow: 0 18px 60px rgba(0, 0, 0, 0.22);
  }
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 92px;
}

body {
  margin: 0;
  min-width: 320px;
  background: var(--bg);
  color: var(--ink);
  font-family: "Manrope", Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

button,
input,
select,
textarea {
  font: inherit;
}

button,
select {
  cursor: pointer;
}

svg {
  display: block;
}

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

.skip-link {
  position: fixed;
  z-index: 1000;
  top: 10px;
  left: 10px;
  padding: 10px 14px;
  background: var(--ink);
  color: var(--bg);
  transform: translateY(-150%);
}

.skip-link:focus {
  transform: translateY(0);
}

.shell {
  width: var(--shell);
  margin-inline: auto;
}

.site-header {
  position: fixed;
  z-index: 100;
  top: 0;
  left: 0;
  width: 100%;
  border-bottom: 1px solid transparent;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  transition: border-color 180ms ease, background 180ms ease;
}

.site-header.is-scrolled {
  border-color: var(--line);
}

.header-inner {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  min-height: 72px;
  gap: 16px;
}

.header-inner-simple {
  grid-template-columns: 1fr auto;
}

.wordmark {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  width: fit-content;
  font-size: 0.86rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.wordmark-mark {
  display: grid;
  place-items: center;
  width: 32px;
  height: 32px;
  border: 1px solid currentColor;
  color: var(--accent);
  font-size: 0.66rem;
  letter-spacing: 0.04em;
}

.main-nav {
  display: none;
  align-items: center;
  justify-content: center;
  gap: clamp(22px, 3vw, 42px);
  font-size: 0.78rem;
  font-weight: 600;
}

.main-nav a,
.back-to-top {
  position: relative;
}

.main-nav a::after,
.back-to-top::after {
  position: absolute;
  right: 0;
  bottom: -6px;
  left: 0;
  height: 1px;
  background: currentColor;
  content: "";
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 180ms ease;
}

.main-nav a:hover::after,
.back-to-top:hover::after {
  transform: scaleX(1);
  transform-origin: left;
}

.language-switcher {
  display: flex;
  align-items: center;
  gap: 7px;
  font-size: 0.72rem;
  font-weight: 700;
}

.language-switcher button {
  border: 0;
  padding: 5px 2px;
  background: none;
  color: var(--ink-soft);
}

.language-switcher button[aria-pressed="true"] {
  color: var(--accent);
}

.hero {
  position: relative;
  display: flex;
  min-height: 100svh;
  padding: 120px 0 34px;
  overflow: hidden;
}

.hero::before {
  position: absolute;
  inset: 0;
  z-index: -1;
  background-image: linear-gradient(to right, color-mix(in srgb, var(--line) 45%, transparent) 1px, transparent 1px), linear-gradient(to bottom, color-mix(in srgb, var(--line) 38%, transparent) 1px, transparent 1px);
  background-size: 80px 80px;
  content: "";
  mask-image: linear-gradient(to bottom, black, transparent 88%);
}

.hero-grid {
  display: grid;
  align-items: center;
}

.hero-copy {
  position: relative;
  z-index: 2;
}

.eyebrow,
.section-index {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 34px;
  color: var(--ink-soft);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.eyebrow-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 6px var(--accent-soft);
}

h1,
h2,
h3,
p {
  overflow-wrap: break-word;
}

h1 {
  max-width: 830px;
  margin: 0;
  font-size: clamp(3.5rem, 13vw, 8.5rem);
  font-weight: 500;
  letter-spacing: -0.075em;
  line-height: 0.88;
}

.hero-subtitle {
  max-width: 610px;
  margin: 36px 0 34px;
  color: var(--ink-soft);
  font-size: clamp(1.15rem, 2.3vw, 1.55rem);
  line-height: 1.45;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  min-width: 220px;
  min-height: 54px;
  gap: 28px;
  border: 1px solid transparent;
  padding: 14px 18px;
  font-size: 0.82rem;
  font-weight: 700;
  transition: background 180ms ease, color 180ms ease, transform 180ms ease;
}

.button svg {
  width: 21px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.5;
}

.button:hover {
  transform: translateY(-2px);
}

.button-primary {
  background: var(--accent-action);
  color: #fff;
}

.button-primary:hover {
  background: var(--accent-strong);
  color: var(--accent-action-ink);
}

.hero-visual {
  position: absolute;
  right: -135px;
  bottom: 75px;
  width: 380px;
  height: 380px;
  opacity: 0.62;
}

.hero-orbit {
  position: absolute;
  inset: 0;
  border: 1px solid var(--line);
  border-radius: 50%;
}

.hero-orbit-outer::before,
.hero-orbit-outer::after {
  position: absolute;
  top: 50%;
  left: 50%;
  background: var(--line);
  content: "";
  transform: translate(-50%, -50%);
}

.hero-orbit-outer::before {
  width: 1px;
  height: 100%;
}

.hero-orbit-outer::after {
  width: 100%;
  height: 1px;
}

.hero-orbit-inner {
  inset: 21%;
  border-color: var(--accent);
}

.hero-monogram {
  position: absolute;
  inset: 37%;
  display: grid;
  place-items: center;
  background: var(--accent);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.hero-coordinate {
  position: absolute;
  right: 18%;
  bottom: 14%;
  padding: 5px 8px;
  background: var(--bg);
  color: var(--ink-soft);
  font-size: 0.58rem;
  letter-spacing: 0.12em;
  line-height: 1.5;
}

.hero-foot {
  position: absolute;
  bottom: 28px;
  left: 50%;
  display: flex;
  align-items: center;
  gap: 16px;
  color: var(--ink-soft);
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  transform: translateX(-50%);
}

.hero-foot-line {
  flex: 1;
  height: 1px;
  background: var(--line);
}

.section {
  padding: 96px 0;
}

.section-index {
  gap: 16px;
  margin-bottom: 54px;
}

.section-index::after {
  width: 62px;
  height: 1px;
  background: var(--line);
  content: "";
}

.project-section {
  background: var(--surface);
}

.project-intro {
  display: grid;
  gap: 26px;
  margin-bottom: 68px;
}

h2 {
  margin: 0;
  font-size: clamp(2.15rem, 6vw, 4.7rem);
  font-weight: 500;
  letter-spacing: -0.055em;
  line-height: 1.04;
}

.project-intro > p,
.section-heading-row > p {
  max-width: 630px;
  margin: 0;
  color: var(--ink-soft);
  font-size: 1.02rem;
}

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

.timeline li {
  position: relative;
  display: grid;
  grid-template-columns: 44px 1fr;
  gap: 8px 12px;
  min-height: 156px;
  border-bottom: 1px solid var(--line);
  padding: 22px 6px;
}

.timeline li::before {
  position: absolute;
  top: -1px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent);
  content: "";
}

.timeline li.is-current {
  background: var(--accent-soft);
  padding-inline: 18px;
}

.timeline li.is-current::before {
  width: 100%;
}

.timeline-number,
.card-number {
  color: var(--ink-soft);
  font-size: 0.66rem;
  font-weight: 700;
  letter-spacing: 0.1em;
}

.timeline-title {
  font-size: 0.98rem;
  font-weight: 600;
  line-height: 1.35;
}

.timeline-state {
  grid-column: 2;
  align-self: end;
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--ink-soft);
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.is-current .timeline-state {
  color: var(--accent-strong);
  font-weight: 700;
}

.pulse {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--accent) 20%, transparent);
}

.partners-section {
  background: var(--bg);
}

.section-heading-row {
  display: grid;
  gap: 24px;
  margin-bottom: 55px;
}

.section-heading-row h2 {
  max-width: 700px;
}

.partner-grid {
  display: grid;
  gap: 14px;
}

.partner-card {
  position: relative;
  display: flex;
  flex-direction: column;
  min-height: 390px;
  border: 1px solid var(--line);
  padding: 26px;
  background: var(--surface);
  transition: border-color 180ms ease, transform 180ms ease, box-shadow 180ms ease;
}

.partner-card:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow);
  transform: translateY(-4px);
}

.line-icon {
  display: grid;
  place-items: center;
  width: 58px;
  height: 58px;
  margin-bottom: 52px;
  background: var(--accent-soft);
  color: var(--accent);
}

.line-icon svg {
  width: 34px;
  height: 34px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: square;
  stroke-linejoin: miter;
  stroke-width: 1.5;
}

.card-number {
  position: absolute;
  top: 28px;
  right: 26px;
}

.partner-card h3 {
  margin: 0 0 14px;
  font-size: 1.35rem;
  font-weight: 600;
  letter-spacing: -0.03em;
}

.partner-card p {
  margin: 0 0 32px;
  color: var(--ink-soft);
  font-size: 0.9rem;
}

.partner-card a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  margin-top: auto;
  border-top: 1px solid var(--line);
  padding-top: 15px;
  color: var(--accent);
  font-size: 0.75rem;
  font-weight: 700;
}

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

.contacts-grid {
  display: grid;
  gap: 70px;
}

.section-index-light,
.contacts-intro {
  color: var(--dark-soft);
}

.section-index-light::after {
  background: color-mix(in srgb, var(--dark-soft) 45%, transparent);
}

.contacts-copy h2 {
  max-width: 620px;
}

.contacts-intro {
  max-width: 520px;
  margin: 25px 0 46px;
}

.contact-list {
  display: grid;
  margin: 0;
  border-top: 1px solid color-mix(in srgb, var(--dark-soft) 35%, transparent);
  font-style: normal;
}

.contact-list a,
.contact-list div {
  display: grid;
  grid-template-columns: 90px 1fr;
  gap: 18px;
  border-bottom: 1px solid color-mix(in srgb, var(--dark-soft) 35%, transparent);
  padding: 18px 0;
}

.contact-list span {
  color: var(--dark-soft);
  font-size: 0.7rem;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.contact-list strong {
  font-size: 0.85rem;
  font-weight: 500;
}

.contact-list a:hover strong {
  color: var(--accent-strong);
}

.contact-form {
  position: relative;
  border: 1px solid color-mix(in srgb, var(--dark-soft) 35%, transparent);
  padding: 25px;
}

.form-row {
  display: grid;
  gap: 20px;
}

.field {
  margin-bottom: 20px;
}

.field label {
  display: block;
  margin-bottom: 7px;
  color: var(--dark-soft);
  font-size: 0.67rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.field input,
.field textarea {
  width: 100%;
  border: 0;
  border-bottom: 1px solid color-mix(in srgb, var(--dark-soft) 50%, transparent);
  border-radius: 0;
  padding: 10px 0 11px;
  background: transparent;
  color: var(--dark-ink);
  outline: 0;
}

.field textarea {
  resize: vertical;
}

.field input:focus,
.field textarea:focus {
  border-color: var(--accent-strong);
  box-shadow: 0 2px 0 var(--accent-strong);
}

.field input[aria-invalid="true"],
.field textarea[aria-invalid="true"] {
  border-color: #ff8e7e;
}

.custom-select {
  position: relative;
}

.custom-select-trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  border: 0;
  border-bottom: 1px solid color-mix(in srgb, var(--dark-soft) 50%, transparent);
  border-radius: 0;
  padding: 10px 0 11px;
  background: transparent;
  color: var(--dark-ink);
  text-align: left;
}

.custom-select-trigger svg {
  width: 16px;
  height: 16px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.4;
  transition: transform 160ms ease;
}

.custom-select-trigger[aria-expanded="true"] svg {
  transform: rotate(180deg);
}

.custom-select-trigger:focus,
.custom-select-trigger[aria-expanded="true"] {
  border-color: var(--accent-strong);
  box-shadow: 0 2px 0 var(--accent-strong);
  outline: 0;
}

.custom-select-trigger[aria-invalid="true"] {
  border-color: #ff8e7e;
}

.custom-select-menu {
  position: absolute;
  z-index: 20;
  top: calc(100% + 8px);
  right: 0;
  left: 0;
  border: 1px solid color-mix(in srgb, var(--dark-soft) 42%, transparent);
  padding: 6px;
  background: #18302e;
  box-shadow: 0 18px 45px rgba(0, 0, 0, 0.32);
}

.custom-select-menu[hidden] {
  display: none;
}

.custom-select-menu button {
  display: flex;
  align-items: center;
  width: 100%;
  min-height: 45px;
  border: 0;
  padding: 10px 13px;
  background: transparent;
  color: var(--dark-ink);
  text-align: left;
}

.custom-select-menu button::before {
  width: 6px;
  height: 6px;
  margin-right: 12px;
  border-radius: 50%;
  background: transparent;
  content: "";
}

.custom-select-menu button:hover,
.custom-select-menu button:focus-visible,
.custom-select-menu button[aria-selected="true"] {
  background: color-mix(in srgb, var(--accent) 22%, transparent);
  outline: 0;
}

.custom-select-menu button[aria-selected="true"]::before {
  background: var(--accent-strong);
}

.button-light {
  width: 100%;
  margin-top: 12px;
  background: var(--dark-ink);
  color: var(--dark);
}

.button-light:hover {
  background: var(--accent-strong);
  color: #fff;
}

.button:disabled {
  cursor: wait;
  opacity: 0.62;
  transform: none;
}

.form-status {
  min-height: 1.5em;
  margin: 15px 0 0;
  color: var(--dark-soft);
  font-size: 0.76rem;
}

.form-status.is-success {
  color: #8dd9b3;
}

.form-status.is-error {
  color: #ff9e91;
}

.honeypot {
  position: absolute;
  left: -10000px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.site-footer {
  border-top: 1px solid var(--line);
  background: var(--bg);
}

.footer-inner {
  display: grid;
  gap: 24px;
  padding-block: 38px;
}

.footer-inner p,
.back-to-top {
  margin: 0;
  color: var(--ink-soft);
  font-size: 0.7rem;
}

.back-to-top {
  display: flex;
  gap: 10px;
  width: fit-content;
}

.not-found {
  display: grid;
  place-items: center;
  min-height: 100svh;
  padding: 110px 0 50px;
}

.not-found-inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 45px;
  align-items: center;
}

.not-found-code {
  color: var(--accent);
  font-size: clamp(7rem, 30vw, 18rem);
  font-weight: 500;
  letter-spacing: -0.1em;
  line-height: 0.8;
}

.not-found-copy h1 {
  font-size: clamp(2.7rem, 7vw, 5rem);
  line-height: 1;
}

.not-found-copy p {
  max-width: 480px;
  margin: 25px 0 32px;
  color: var(--ink-soft);
}

@media (min-width: 640px) {
  :root {
    --shell: min(1180px, calc(100% - 64px));
  }

  .header-inner {
    grid-template-columns: 1fr auto 1fr;
    min-height: 82px;
  }

  .header-inner-simple {
    grid-template-columns: 1fr auto;
  }

  .main-nav {
    display: flex;
  }

  .language-switcher {
    justify-self: end;
  }

  .hero {
    padding-top: 145px;
  }

  .hero-visual {
    right: -80px;
    bottom: 80px;
    width: 500px;
    height: 500px;
  }

  .timeline {
    grid-template-columns: repeat(2, 1fr);
  }

  .timeline li {
    border-right: 1px solid var(--line);
    padding: 24px 18px;
  }

  .partner-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .partner-card:last-child {
    grid-column: 1 / -1;
  }

  .form-row {
    grid-template-columns: 1fr 1fr;
    gap: 22px;
  }

  .footer-inner {
    grid-template-columns: 1fr auto;
    align-items: center;
  }

  .footer-inner p {
    grid-row: 2;
  }

  .back-to-top {
    grid-column: 2;
    grid-row: 1 / span 2;
  }
}

@media (min-width: 900px) {
  .hero-grid {
    grid-template-columns: minmax(0, 1.35fr) minmax(340px, 0.65fr);
  }

  .hero-visual {
    position: relative;
    right: auto;
    bottom: auto;
    justify-self: end;
    width: min(35vw, 480px);
    height: min(35vw, 480px);
    opacity: 1;
  }

  .project-intro,
  .section-heading-row {
    grid-template-columns: minmax(0, 1.3fr) minmax(300px, 0.7fr);
    align-items: end;
    gap: 70px;
  }

  .timeline {
    grid-template-columns: repeat(4, 1fr);
  }

  .timeline li {
    min-height: 205px;
    border-bottom: 0;
  }

  .timeline li:first-child {
    border-left: 1px solid var(--line);
  }

  .partner-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .partner-card:last-child {
    grid-column: auto;
  }

  .contacts-grid {
    grid-template-columns: minmax(0, 1fr) minmax(390px, 0.82fr);
    align-items: start;
    gap: 9vw;
  }

  .footer-inner {
    grid-template-columns: 1fr auto 1fr;
  }

  .footer-inner p {
    grid-column: 2;
    grid-row: 1;
  }

  .back-to-top {
    grid-column: 3;
    grid-row: 1;
    justify-self: end;
  }

  .not-found-inner {
    grid-template-columns: minmax(300px, 0.8fr) 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}