:root {
  --seo-bg: #070a08;
  --seo-surface: #111612;
  --seo-surface-strong: #151c17;
  --seo-text: #f4f7f3;
  --seo-muted: #9da8a0;
  --seo-line: rgba(232, 241, 233, 0.11);
  --seo-green: #a8e000;
  --seo-green-soft: #bdd99c;
  --seo-radius: 22px;
  color-scheme: dark;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at 72% 4%, rgba(168, 224, 0, 0.075), transparent 30rem),
    var(--seo-bg);
  color: var(--seo-text);
  font-family: Manrope, Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
}

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

img,
svg {
  display: block;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 100;
  transform: translateY(-160%);
  border: 1px solid var(--seo-line);
  border-radius: 10px;
  background: var(--seo-surface);
  padding: 10px 14px;
}

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

.seo-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: grid;
  grid-template-columns: auto 1fr auto;
  min-height: 84px;
  align-items: center;
  gap: 32px;
  border-bottom: 1px solid var(--seo-line);
  background: rgba(5, 8, 6, 0.88);
  padding: 0 clamp(22px, 4vw, 70px);
  backdrop-filter: blur(18px);
}

.seo-brand {
  display: inline-flex;
  align-items: center;
}

.seo-brand img {
  width: 218px;
  height: auto;
}

.seo-nav {
  display: flex;
  justify-content: center;
  gap: 28px;
  color: var(--seo-muted);
  font-size: 0.88rem;
  font-weight: 700;
}

.seo-nav a,
.seo-footer a {
  transition: color 160ms ease;
}

.seo-nav a:hover,
.seo-nav a:focus-visible,
.seo-footer a:hover,
.seo-footer a:focus-visible {
  color: var(--seo-green);
}

.seo-button {
  display: inline-flex;
  min-height: 52px;
  align-items: center;
  justify-content: center;
  gap: 10px;
  border: 1px solid var(--seo-line);
  border-radius: 14px;
  padding: 12px 20px;
  font: inherit;
  font-weight: 850;
  transition: transform 160ms ease, border-color 160ms ease, background 160ms ease;
}

.seo-button:hover,
.seo-button:focus-visible {
  transform: translateY(-2px);
}

.seo-button-primary {
  border-color: rgba(195, 255, 18, 0.55);
  background: linear-gradient(135deg, #c4ee98, #8db95f);
  color: #091007;
}

.seo-button-secondary {
  background: #101612;
  color: var(--seo-text);
}

.seo-button svg {
  width: 18px;
  height: 18px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.9;
}

.seo-shell {
  width: min(1220px, calc(100% - 44px));
  margin: 0 auto;
}

.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 28px 0 0;
  color: #77817a;
  font-size: 0.78rem;
}

.breadcrumbs a:hover {
  color: var(--seo-green);
}

.seo-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(360px, 0.85fr);
  align-items: center;
  gap: clamp(46px, 7vw, 100px);
  min-height: 630px;
  padding: clamp(64px, 9vw, 116px) 0;
}

.seo-kicker {
  margin: 0 0 18px;
  color: var(--seo-green-soft);
  font-size: 0.72rem;
  font-weight: 850;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.seo-hero h1 {
  max-width: 880px;
  margin: 0;
  font-size: clamp(3.2rem, 7vw, 6.7rem);
  line-height: 0.93;
  letter-spacing: -0.065em;
}

.seo-hero h1 span {
  color: var(--seo-green);
}

.seo-hero-copy > p:not(.seo-kicker) {
  max-width: 700px;
  margin: 30px 0 0;
  color: #b3bdb6;
  font-size: clamp(1rem, 1.5vw, 1.22rem);
}

.seo-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}

.seo-hero-panel {
  position: relative;
  overflow: hidden;
  min-height: 430px;
  border: 1px solid var(--seo-line);
  border-radius: 28px;
  background:
    radial-gradient(circle at 68% 20%, rgba(168, 224, 0, 0.18), transparent 16rem),
    linear-gradient(150deg, #101711, #090d0b);
  padding: 28px;
  box-shadow: 0 38px 90px rgba(0, 0, 0, 0.34);
}

.seo-hero-panel::after {
  content: "";
  position: absolute;
  right: -80px;
  bottom: -110px;
  width: 310px;
  height: 310px;
  border: 1px solid rgba(168, 224, 0, 0.17);
  border-radius: 50%;
  box-shadow: 0 0 60px rgba(168, 224, 0, 0.08);
}

.flow-card {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 42px 1fr;
  gap: 14px;
  align-items: center;
  border-bottom: 1px solid var(--seo-line);
  padding: 22px 4px;
}

.flow-card:last-child {
  border-bottom: 0;
}

.flow-card > span {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border: 1px solid rgba(168, 224, 0, 0.24);
  border-radius: 13px;
  background: rgba(168, 224, 0, 0.08);
  color: var(--seo-green);
  font-weight: 900;
}

.flow-card strong {
  display: block;
  margin-bottom: 2px;
}

.flow-card small {
  color: var(--seo-muted);
  font-size: 0.8rem;
}

.seo-section {
  padding: clamp(76px, 10vw, 132px) 0;
}

.seo-section + .seo-section {
  border-top: 1px solid var(--seo-line);
}

.seo-section-head {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(280px, 0.45fr);
  align-items: end;
  gap: 48px;
  margin-bottom: 46px;
}

.seo-section-head h2 {
  max-width: 850px;
  margin: 0;
  font-size: clamp(2.35rem, 5vw, 4.7rem);
  line-height: 1;
  letter-spacing: -0.055em;
}

.seo-section-head > p {
  margin: 0;
  color: var(--seo-muted);
}

.seo-grid-3,
.seo-grid-4,
.model-grid {
  display: grid;
  gap: 16px;
}

.seo-grid-3,
.model-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.seo-grid-4 {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.seo-card {
  min-height: 250px;
  border: 1px solid var(--seo-line);
  border-radius: var(--seo-radius);
  background: linear-gradient(150deg, var(--seo-surface-strong), #0c100d);
  padding: 28px;
}

.seo-card-index {
  display: block;
  margin-bottom: 54px;
  color: var(--seo-green-soft);
  font-size: 0.72rem;
  font-weight: 850;
  letter-spacing: 0.09em;
}

.seo-card h3 {
  margin: 0 0 12px;
  font-size: 1.28rem;
  line-height: 1.25;
}

.seo-card p,
.seo-card li {
  color: var(--seo-muted);
  font-size: 0.9rem;
}

.seo-card ul {
  margin: 18px 0 0;
  padding-left: 18px;
}

.model-card {
  border: 1px solid var(--seo-line);
  border-radius: var(--seo-radius);
  background: #0e130f;
  padding: 28px;
}

.model-card strong {
  display: block;
  color: var(--seo-green-soft);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.model-card h3 {
  margin: 22px 0 10px;
  font-size: 1.5rem;
}

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

.seo-note {
  margin-top: 24px;
  border-left: 2px solid var(--seo-green);
  background: rgba(168, 224, 0, 0.045);
  padding: 18px 20px;
  color: var(--seo-muted);
  font-size: 0.88rem;
}

.faq-list {
  border-top: 1px solid var(--seo-line);
}

.faq-list details {
  border-bottom: 1px solid var(--seo-line);
}

.faq-list summary {
  display: grid;
  grid-template-columns: 56px 1fr auto;
  align-items: center;
  gap: 18px;
  min-height: 96px;
  cursor: pointer;
  font-size: clamp(1rem, 2vw, 1.25rem);
  font-weight: 800;
  list-style: none;
}

.faq-list summary::-webkit-details-marker {
  display: none;
}

.faq-list summary > span:first-child {
  color: #677068;
  font-size: 0.72rem;
}

.faq-list summary::after {
  content: "+";
  color: var(--seo-green);
  font-size: 1.7rem;
  font-weight: 400;
}

.faq-list details[open] summary::after {
  content: "−";
}

.faq-list details > p {
  max-width: 840px;
  margin: -8px 0 30px 74px;
  color: var(--seo-muted);
}

.seo-cta {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 36px;
  overflow: hidden;
  border: 1px solid rgba(168, 224, 0, 0.22);
  border-radius: 28px;
  background:
    radial-gradient(circle at 88% 50%, rgba(168, 224, 0, 0.15), transparent 18rem),
    #101611;
  padding: clamp(34px, 6vw, 70px);
}

.seo-cta h2 {
  max-width: 720px;
  margin: 0 0 12px;
  font-size: clamp(2.1rem, 4.8vw, 4.4rem);
  line-height: 1;
  letter-spacing: -0.05em;
}

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

.seo-footer {
  margin-top: clamp(80px, 11vw, 150px);
  border-top: 1px solid var(--seo-line);
  padding: 48px 0 32px;
  color: var(--seo-muted);
  font-size: 0.8rem;
}

.seo-footer-main,
.seo-footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 28px;
}

.seo-footer-main {
  align-items: center;
  padding-bottom: 36px;
}

.seo-footer-main nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 12px 24px;
}

.seo-footer-bottom {
  border-top: 1px solid var(--seo-line);
  padding-top: 26px;
}

@media (max-width: 980px) {
  .seo-header {
    grid-template-columns: 1fr auto;
  }

  .seo-nav {
    display: none;
  }

  .seo-hero {
    grid-template-columns: 1fr;
    min-height: 0;
  }

  .seo-hero-panel {
    min-height: 0;
  }

  .seo-section-head {
    grid-template-columns: 1fr;
    gap: 18px;
  }

  .seo-grid-4 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .seo-grid-3,
  .model-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .seo-header {
    min-height: 72px;
    padding-inline: 18px;
  }

  .seo-brand img {
    width: 164px;
  }

  .seo-header > .seo-button {
    min-height: 44px;
    padding: 9px 14px;
    font-size: 0.82rem;
  }

  .seo-shell {
    width: min(100% - 30px, 1220px);
  }

  .seo-hero {
    gap: 32px;
    padding: 54px 0 72px;
  }

  .seo-hero h1 {
    font-size: clamp(3rem, 17vw, 4.8rem);
  }

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

  .seo-hero-panel {
    padding: 18px;
  }

  .seo-grid-4 {
    grid-template-columns: 1fr;
  }

  .seo-card {
    min-height: 0;
  }

  .seo-card-index {
    margin-bottom: 34px;
  }

  .faq-list summary {
    grid-template-columns: 34px 1fr auto;
  }

  .faq-list details > p {
    margin-left: 52px;
  }

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

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

  .seo-footer-main,
  .seo-footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }

  .seo-footer-main nav {
    justify-content: flex-start;
  }
}

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

  .seo-button {
    transition: none;
  }
}