:root {
  color-scheme: light;
  --bg: #fbfcfd;
  --panel: #ffffff;
  --text: #111820;
  --muted: #5d6975;
  --soft: #7a8793;
  --line: #dce2e8;
  --line-strong: #c7d0d9;
  --mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  --sans: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-family: var(--sans);
}

* {
  box-sizing: border-box;
}

html {
  min-width: 320px;
  background: var(--bg);
}

body {
  min-height: 100vh;
  margin: 0;
  color: var(--text);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.94), rgba(247, 249, 251, 0.92)),
    var(--bg);
  letter-spacing: 0;
}

.infra-page,
.infra-page-shell {
  min-height: 100vh;
  display: grid;
  grid-template-rows: auto 1fr auto;
}

.infra-header {
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.82);
}

.infra-header-inner {
  width: min(100% - 48px, 1120px);
  min-height: 76px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.infra-brand {
  flex: 0 0 auto;
  color: var(--text);
  font-family: var(--mono);
  font-size: clamp(1rem, 1.5vw, 1.1rem);
  font-weight: 700;
  letter-spacing: 0;
  text-decoration: none;
}

.infra-brand span {
  color: var(--soft);
}

.infra-header-controls {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 24px;
  min-width: 0;
}

.infra-nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 18px;
  min-width: 0;
}

.infra-nav-link,
.infra-footer-links a {
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.76rem;
  letter-spacing: 0.04em;
  text-decoration: none;
  text-transform: uppercase;
}

.infra-nav-link:hover,
.infra-nav-link:focus-visible,
.infra-footer-links a:hover,
.infra-footer-links a:focus-visible {
  color: var(--text);
}

.infra-nav-link.is-active {
  color: var(--text);
}

.language-switcher {
  display: inline-flex;
  align-items: center;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.72);
}

.language-link {
  min-width: 38px;
  padding: 7px 10px;
  color: var(--soft);
  font-family: var(--mono);
  font-size: 0.76rem;
  font-weight: 700;
  line-height: 1;
  text-align: center;
  text-decoration: none;
}

.language-link + .language-link {
  border-left: 1px solid var(--line);
}

.language-link.is-active {
  color: var(--text);
  background: #eef2f5;
}

.language-link:focus-visible,
.infra-brand:focus-visible,
.infra-nav-link:focus-visible,
.infra-footer-links a:focus-visible {
  outline: 2px solid var(--line-strong);
  outline-offset: 3px;
}

.infra-main {
  width: min(100% - 48px, 820px);
  margin: 0 auto;
  padding: clamp(72px, 12vw, 138px) 0;
}

.infra-subpage {
  width: min(100% - 48px, 900px);
  padding-top: clamp(64px, 9vw, 104px);
}

.infra-content {
  display: grid;
  justify-items: center;
  text-align: center;
}

.network-mark {
  position: relative;
  width: 54px;
  height: 46px;
  margin-bottom: 34px;
  border: 1px solid var(--line-strong);
  clip-path: polygon(25% 0, 75% 0, 100% 50%, 75% 100%, 25% 100%, 0 50%);
}

.network-mark::before,
.network-mark::after {
  position: absolute;
  content: "";
  background: var(--line-strong);
}

.network-mark::before {
  top: 50%;
  left: 8px;
  right: 8px;
  height: 1px;
}

.network-mark::after {
  top: 8px;
  bottom: 8px;
  left: 50%;
  width: 1px;
}

.infra-content h1 {
  margin: 0;
  font-family: var(--mono);
  font-size: clamp(2rem, 5vw, 3.6rem);
  font-weight: 500;
  line-height: 1.15;
}

.infra-eyebrow {
  margin: 0 0 18px;
  color: var(--soft);
  font-family: var(--mono);
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.agent-page .infra-content h1 {
  font-size: clamp(1.75rem, 4vw, 2.45rem);
}

.rule {
  width: 72px;
  height: 1px;
  margin: 30px 0;
  background: var(--line-strong);
}

.subtitle,
.body-copy,
.closing {
  max-width: 590px;
  margin: 0;
  color: var(--muted);
  font-family: var(--mono);
  font-size: clamp(0.9rem, 1.8vw, 1rem);
  line-height: 1.75;
}

.body-copy {
  margin-top: 28px;
}

.body-copy a,
.infra-card a {
  color: var(--text);
  text-decoration-color: var(--line-strong);
  text-underline-offset: 4px;
}

.service-block {
  width: min(100%, 660px);
  margin-top: 54px;
  text-align: left;
}

.service-label {
  margin: 0 0 12px;
  color: var(--soft);
  font-family: var(--mono);
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.service-list {
  margin: 0;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--panel);
  list-style: none;
}

.service-list li {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 14px;
  border-top: 1px solid var(--line);
  padding: 14px 22px;
  color: #1b2430;
  font-family: var(--mono);
  font-size: 0.94rem;
}

.service-list li:first-child {
  border-top: 0;
}

.service-list li::before {
  content: "-";
  color: var(--soft);
}

.closing {
  width: min(100%, 620px);
  margin-top: 42px;
  border-top: 1px solid var(--line);
  padding-top: 28px;
}

.infra-card-grid {
  width: min(100%, 780px);
  display: grid;
  gap: 12px;
  margin-top: 48px;
  text-align: left;
}

.infra-card {
  border: 1px solid var(--line);
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.7);
  padding: 22px 24px;
}

.infra-card h2 {
  margin: 0 0 10px;
  color: var(--text);
  font-family: var(--mono);
  font-size: 0.96rem;
  font-weight: 700;
  letter-spacing: 0;
}

.infra-card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.98rem;
  line-height: 1.7;
}

.infra-footer {
  border-top: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.78);
}

.infra-footer-inner {
  width: min(100% - 48px, 1120px);
  min-height: 96px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  color: var(--soft);
  font-family: var(--mono);
  font-size: 0.82rem;
}

.infra-footer-links {
  display: flex;
  align-items: center;
  gap: 18px;
}

.agent-page .infra-main {
  width: min(100% - 48px, 680px);
  display: grid;
  align-items: center;
}

.agent-copy {
  display: grid;
  gap: 24px;
  max-width: 560px;
  margin: 0;
  color: var(--muted);
  font-family: var(--mono);
  font-size: clamp(0.9rem, 1.8vw, 1rem);
  line-height: 1.75;
}

.agent-copy p {
  margin: 0;
}

@media (max-width: 640px) {
  .infra-header-inner,
  .infra-main,
  .agent-page .infra-main,
  .infra-footer-inner {
    width: min(100% - 32px, 1120px);
  }

  .infra-header-inner {
    min-height: 88px;
    align-items: flex-start;
    flex-direction: column;
    justify-content: center;
    gap: 14px;
    padding: 16px 0;
  }

  .infra-header-controls {
    width: 100%;
    align-items: flex-start;
    flex-direction: column;
    gap: 14px;
  }

  .infra-nav {
    width: 100%;
    justify-content: flex-start;
    flex-wrap: wrap;
    gap: 10px 14px;
  }

  .infra-main {
    padding: 58px 0;
  }

  .service-block {
    margin-top: 42px;
  }

  .service-list li {
    grid-template-columns: 22px minmax(0, 1fr);
    padding: 14px 16px;
  }

  .infra-card {
    padding: 18px;
  }

  .infra-footer-inner {
    min-height: 108px;
    align-items: flex-start;
    flex-direction: column;
    justify-content: center;
  }

  .infra-footer-links {
    flex-wrap: wrap;
    gap: 12px 16px;
  }
}