@font-face {
  font-family: "Onest";
  src: url("/static/fonts/onest-cyrillic-ext-wght-normal.woff2") format("woff2");
  font-display: swap;
  font-style: normal;
  font-weight: 100 900;
}

:root {
  color-scheme: light;
  --seo-ink: #0d0e0c;
  --seo-muted: #6b655c;
  --seo-line: #d8d2c7;
  --seo-line-strong: #bcb5a9;
  --seo-coral: #ff6b55;
  --seo-coral-deep: #bf3d2b;
  --seo-coral-soft: #fff0ec;
  --seo-bg: #f5f1e8;
  --seo-paper: #fffaf1;
  --seo-paper-strong: #fffef9;
  --seo-dark: #0d0e0c;
  --seo-green: #126b4d;
  --seo-max: 1120px;
}

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

body,
body.usynai-brand {
  --bg: var(--seo-bg);
  --surface: var(--seo-paper-strong);
  --surface-soft: var(--seo-paper);
  --surface-hover: #eee8de;
  --ink: var(--seo-ink);
  --ink-soft: #514c45;
  --ink-muted: var(--seo-muted);
  --border: var(--seo-line);
  --border-strong: var(--seo-line-strong);
  --primary: var(--seo-coral);
  --primary-strong: var(--seo-coral-deep);
  --primary-soft: var(--seo-coral-soft);
  --blue: var(--seo-coral);
  --blue-soft: var(--seo-coral-soft);
  --violet: var(--seo-coral);
  --violet-soft: var(--seo-coral-soft);
  margin: 0;
  color: var(--seo-ink);
  background: var(--seo-bg);
  font-family: "Onest", Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

a {
  color: inherit;
}

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

::selection {
  color: var(--seo-ink);
  background: var(--seo-coral);
}

:is(a, button, summary):focus-visible {
  outline: 3px solid rgba(255, 107, 85, 0.34) !important;
  outline-offset: 3px;
}

.container {
  width: min(calc(100% - 40px), var(--seo-max));
  margin-inline: auto;
}

/* Header */
.seo-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-top: 2px solid var(--seo-ink);
  border-bottom: 1px solid var(--seo-line);
  background: rgba(245, 241, 232, 0.96);
  box-shadow: 0 6px 20px rgba(13, 14, 12, 0.035);
  backdrop-filter: blur(16px) saturate(1.08);
  -webkit-backdrop-filter: blur(16px) saturate(1.08);
}

.seo-header-inner {
  min-height: 72px;
  display: flex;
  align-items: center;
  gap: 24px;
}

.seo-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--seo-ink);
  text-decoration: none;
  font-weight: 800;
  letter-spacing: -0.035em;
}

.seo-brand img {
  width: 38px;
  height: 38px;
  border-radius: 11px;
}

.seo-nav {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 22px;
  font-size: 14px;
}

.seo-nav a {
  color: var(--seo-muted);
  text-decoration: none;
  font-weight: 620;
  transition: color 0.16s ease;
}

.seo-nav a:hover {
  color: var(--seo-ink);
}

/* Actions */
.seo-button {
  display: inline-flex;
  min-height: 46px;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 0 20px;
  border: 1px solid var(--seo-ink);
  border-radius: 12px;
  color: var(--seo-paper);
  background: var(--seo-ink);
  box-shadow: 0 10px 0 rgba(255, 107, 85, 0.14);
  text-decoration: none;
  font-weight: 750;
  transition: transform 0.16s ease, background 0.16s ease, color 0.16s ease, box-shadow 0.16s ease;
}

.seo-button:hover {
  color: var(--seo-ink);
  background: var(--seo-coral);
  box-shadow: 0 6px 0 rgba(13, 14, 12, 0.13);
  transform: translateY(-1px);
}

.seo-button.secondary {
  color: var(--seo-ink);
  border-color: var(--seo-line-strong);
  background: var(--seo-paper-strong);
  box-shadow: none;
}

.seo-button.secondary:hover {
  border-color: var(--seo-ink);
  background: var(--seo-paper);
}

.seo-nav .seo-button {
  color: var(--seo-paper);
}

.seo-nav .seo-button:hover {
  color: var(--seo-ink);
}

/* Hero */
.seo-hero {
  padding: 86px 0 70px;
  border-bottom: 1px solid var(--seo-line);
  background-color: var(--seo-bg);
  background-image:
    linear-gradient(rgba(13, 14, 12, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(13, 14, 12, 0.035) 1px, transparent 1px),
    radial-gradient(circle at 82% 4%, rgba(255, 107, 85, 0.14), transparent 30rem);
  background-size: 48px 48px, 48px 48px, auto;
}

.breadcrumbs {
  margin-bottom: 20px;
  color: var(--seo-muted);
  font-size: 13px;
}

.breadcrumbs a {
  color: var(--seo-coral-deep);
  text-decoration: none;
}

.seo-eyebrow {
  display: inline-flex;
  padding: 7px 12px;
  border: 1px solid rgba(191, 61, 43, 0.32);
  border-radius: 999px;
  color: var(--seo-coral-deep);
  background: var(--seo-coral-soft);
  font-size: 13px;
  font-weight: 760;
}

.seo-hero h1 {
  max-width: 930px;
  margin: 20px 0;
  color: var(--seo-ink);
  font-size: clamp(38px, 6vw, 70px);
  font-weight: 790;
  line-height: 1.04;
  letter-spacing: -0.055em;
}

.seo-lead {
  max-width: 790px;
  margin: 0;
  color: var(--seo-muted);
  font-size: clamp(18px, 2.2vw, 22px);
}

.seo-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.seo-trust {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  margin: 28px 0 0;
  padding: 0;
  color: #514c45;
  list-style: none;
  font-size: 14px;
}

.seo-trust li::first-letter {
  color: var(--seo-coral-deep);
}

/* Content sections */
.seo-section {
  padding: 78px 0;
  background: var(--seo-paper-strong);
}

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

.seo-section.dark {
  color: var(--seo-paper);
  background: var(--seo-dark);
}

.seo-section-heading {
  max-width: 760px;
  margin-bottom: 34px;
}

.seo-section-heading > span {
  color: var(--seo-coral-deep);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.seo-section-heading h2 {
  margin: 10px 0 12px;
  color: var(--seo-ink);
  font-size: clamp(30px, 4vw, 48px);
  font-weight: 760;
  line-height: 1.12;
  letter-spacing: -0.04em;
}

.seo-section-heading p {
  margin: 0;
  color: var(--seo-muted);
  font-size: 18px;
}

.dark .seo-section-heading h2 {
  color: var(--seo-paper);
}

.dark .seo-section-heading p {
  color: #c8c0b5;
}

.seo-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.seo-card {
  padding: 26px;
  border: 1px solid var(--seo-line);
  border-radius: 18px;
  background: var(--seo-paper);
  box-shadow: 0 14px 34px rgba(13, 14, 12, 0.045);
  transition: border-color 0.16s ease, transform 0.16s ease, box-shadow 0.16s ease;
}

.seo-card:hover {
  border-color: rgba(191, 61, 43, 0.38);
  box-shadow: 0 18px 40px rgba(13, 14, 12, 0.07);
  transform: translateY(-2px);
}

.seo-card h3 {
  margin: 0 0 10px;
  color: var(--seo-ink);
  font-size: 21px;
  line-height: 1.25;
}

.seo-card p {
  margin: 0;
  color: var(--seo-muted);
}

.seo-card b {
  display: inline-flex;
  margin-bottom: 14px;
  color: var(--seo-coral-deep);
  font-size: 13px;
}

/* Connection block */
.seo-two {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(320px, 0.75fr);
  gap: 42px;
  align-items: start;
}

.seo-copy h2 {
  margin: 0 0 18px;
  color: var(--seo-ink);
  font-size: clamp(30px, 4vw, 46px);
  font-weight: 760;
  line-height: 1.15;
  letter-spacing: -0.04em;
}

.seo-copy h3 {
  margin: 30px 0 10px;
  color: var(--seo-ink);
  font-size: 23px;
}

.seo-copy p,
.seo-copy li {
  color: var(--seo-muted);
}

.seo-copy ul,
.seo-copy ol {
  padding-left: 22px;
}

.seo-panel {
  position: sticky;
  top: 104px;
  padding: 30px;
  border: 1px solid var(--seo-ink);
  border-radius: 20px;
  color: var(--seo-paper);
  background: var(--seo-ink);
  box-shadow: 12px 12px 0 rgba(255, 107, 85, 0.18);
}

.seo-panel h3 {
  margin: 0 0 20px;
  color: var(--seo-paper);
  font-size: 24px;
}

.seo-panel ol {
  display: grid;
  gap: 15px;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: steps;
}

.seo-panel li {
  display: grid;
  grid-template-columns: 36px 1fr;
  gap: 12px;
  align-items: center;
  color: #d8d1c7;
}

.seo-panel li::before {
  counter-increment: steps;
  content: counter(steps);
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border-radius: 10px;
  color: var(--seo-ink);
  background: var(--seo-coral);
  font-weight: 820;
}

.seo-note {
  margin-top: 20px;
  padding: 18px 20px;
  border-left: 4px solid var(--seo-coral);
  border-radius: 0 14px 14px 0;
  color: #514c45;
  background: var(--seo-coral-soft);
}

/* Tables, FAQ and related pages */
.seo-table {
  width: 100%;
  overflow: hidden;
  border: 1px solid var(--seo-line);
  border-collapse: separate;
  border-spacing: 0;
  border-radius: 18px;
  background: var(--seo-paper-strong);
}

.seo-table th,
.seo-table td {
  padding: 17px 18px;
  border-bottom: 1px solid var(--seo-line);
  text-align: left;
  vertical-align: top;
}

.seo-table th {
  color: var(--seo-ink);
  background: #eee8de;
  font-size: 14px;
}

.seo-table tr:last-child td {
  border-bottom: 0;
}

.seo-faq {
  display: grid;
  gap: 12px;
}

.seo-faq details {
  padding: 0 20px;
  border: 1px solid var(--seo-line);
  border-radius: 14px;
  background: var(--seo-paper);
}

.seo-faq details[open] {
  border-color: rgba(191, 61, 43, 0.35);
}

.seo-faq summary {
  cursor: pointer;
  padding: 18px 0;
  color: var(--seo-ink);
  font-weight: 750;
}

.seo-faq p {
  margin: 0 0 20px;
  color: var(--seo-muted);
}

.seo-related {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.seo-related a {
  display: block;
  padding: 22px;
  border: 1px solid var(--seo-line);
  border-radius: 16px;
  background: var(--seo-paper);
  text-decoration: none;
  transition: border-color 0.16s ease, transform 0.16s ease;
}

.seo-related a:hover {
  border-color: var(--seo-coral);
  transform: translateY(-2px);
}

.seo-related strong {
  display: block;
  margin-bottom: 6px;
  color: var(--seo-ink);
}

.seo-related span {
  color: var(--seo-muted);
  font-size: 14px;
}

/* CTA and footer */
.seo-cta {
  text-align: center;
}

.seo-cta h2 {
  max-width: 760px;
  margin: 0 auto 14px;
  color: var(--seo-paper);
  font-size: clamp(32px, 5vw, 54px);
  line-height: 1.08;
  letter-spacing: -0.045em;
}

.seo-cta p {
  max-width: 680px;
  margin: 0 auto 28px;
  color: #c8c0b5;
  font-size: 18px;
}

.seo-cta .seo-button {
  color: var(--seo-ink);
  border-color: var(--seo-coral);
  background: var(--seo-coral);
  box-shadow: none;
}

.seo-cta .seo-button:hover {
  color: var(--seo-ink);
  background: #ff8a76;
}

.seo-footer {
  padding: 34px 0;
  border-top: 1px solid var(--seo-line);
  background: var(--seo-bg);
}

.seo-footer-inner {
  display: flex;
  align-items: center;
  gap: 22px;
  flex-wrap: wrap;
}

.seo-footer nav {
  margin-left: auto;
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
}

.seo-footer a {
  color: var(--seo-muted);
  text-decoration: none;
  font-size: 14px;
}

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

.seo-footer small {
  width: 100%;
  color: #817a70;
}

@media (max-width: 820px) {
  .seo-nav > a:not(.seo-button) {
    display: none;
  }

  .seo-hero {
    padding: 62px 0 54px;
  }

  .seo-grid,
  .seo-related {
    grid-template-columns: 1fr;
  }

  .seo-two {
    grid-template-columns: 1fr;
  }

  .seo-panel {
    position: static;
  }

  .seo-table {
    display: block;
    overflow-x: auto;
  }

  .seo-section {
    padding: 58px 0;
  }
}

@media (max-width: 520px) {
  .container {
    width: min(calc(100% - 28px), var(--seo-max));
  }

  .seo-header-inner {
    min-height: 64px;
  }

  .seo-brand span {
    display: none;
  }

  .seo-header .seo-button {
    min-height: 40px;
    padding: 0 14px;
  }

  .seo-hero h1 {
    font-size: 40px;
  }

  .seo-actions .seo-button {
    width: 100%;
  }

  .seo-trust {
    display: grid;
  }

  .seo-card {
    padding: 22px;
  }

  .seo-footer nav {
    margin-left: 0;
  }
}

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