.seo-body {
  min-height: 100vh;
}

.seo-topbar {
  position: sticky;
  top: 14px;
  z-index: 20;
  display: flex;
  width: min(1380px, calc(100% - 64px));
  align-items: center;
  gap: 24px;
  margin: 14px auto 0;
  padding: 10px 12px 10px 14px;
  border: 1px solid rgba(101, 185, 220, 0.24);
  border-radius: 18px;
  background: rgba(5, 16, 28, 0.86);
  box-shadow: 0 18px 46px rgba(0, 0, 0, 0.24);
  backdrop-filter: blur(18px);
}

.seo-brand {
  display: inline-flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 10px;
  color: inherit;
  text-decoration: none;
}

.seo-topbar .login-brand-mark {
  width: 36px;
  height: 36px;
  border-radius: 11px;
  font-size: 17px;
}

.seo-nav {
  display: flex;
  min-width: 0;
  flex: 1 1 auto;
  align-items: center;
  justify-content: center;
  gap: 4px;
}

.seo-nav a {
  padding: 8px 10px;
  border: 1px solid transparent;
  border-radius: 10px;
  color: #829dad;
  font-size: 10px;
  font-weight: 600;
  text-decoration: none;
  transition: 160ms ease;
}

.seo-nav a:hover,
.seo-nav a[aria-current="page"] {
  border-color: rgba(57, 214, 160, 0.2);
  color: #bfe9dc;
  background: rgba(57, 214, 160, 0.07);
}

.seo-top-actions,
.seo-hero-actions,
.seo-cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

.seo-primary-action,
.seo-ghost-action {
  display: inline-flex;
  min-height: 38px;
  align-items: center;
  justify-content: center;
  padding: 9px 14px;
  border-radius: 11px;
  font-size: 10px;
  font-weight: 700;
  text-decoration: none;
  transition: transform 160ms ease, border-color 160ms ease, color 160ms ease, background 160ms ease;
}

.seo-primary-action {
  border: 1px solid rgba(57, 214, 160, 0.5);
  color: #041a12;
  background: linear-gradient(145deg, #74dfbe, #37bd94);
  box-shadow: 0 8px 24px rgba(57, 214, 160, 0.14);
}

.seo-ghost-action {
  border: 1px solid rgba(101, 185, 220, 0.25);
  color: #a8c8d8;
  background: rgba(9, 25, 41, 0.64);
}

.seo-primary-action:hover,
.seo-ghost-action:hover {
  transform: translateY(-1px);
}

.seo-ghost-action:hover {
  border-color: rgba(101, 185, 220, 0.48);
  color: #d8eff9;
}

.seo-shell {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 18px;
  width: min(1380px, calc(100% - 64px));
  margin: 0 auto;
  padding: 36px 0 34px;
}

.seo-breadcrumbs {
  display: flex;
  align-items: center;
  gap: 8px;
  color: #617f91;
  font-family: "IBM Plex Mono", monospace;
  font-size: 9px;
}

.seo-breadcrumbs a {
  color: #7fb6cc;
  text-decoration: none;
}

.seo-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(400px, 0.9fr);
  gap: 28px;
  align-items: stretch;
  min-height: 460px;
  padding: clamp(28px, 4.5vw, 62px);
  overflow: hidden;
  border: 1px solid rgba(101, 185, 220, 0.22);
  border-radius: 30px;
  background:
    radial-gradient(circle at 88% 8%, rgba(101, 185, 220, 0.14), transparent 24rem),
    radial-gradient(circle at 5% 96%, rgba(57, 214, 160, 0.1), transparent 22rem),
    linear-gradient(140deg, rgba(9, 27, 44, 0.96), rgba(5, 16, 28, 0.94));
  box-shadow: 0 28px 68px rgba(0, 0, 0, 0.24);
}

.seo-hero-copy {
  display: flex;
  min-width: 0;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
}

.seo-hero h1 {
  max-width: 820px;
  margin: 0;
  color: #eef8ff;
  font-size: clamp(42px, 5.5vw, 76px);
  font-weight: 600;
  line-height: 0.98;
  letter-spacing: -0.052em;
}

.seo-hero-copy > p {
  max-width: 760px;
  margin: 24px 0 0;
  color: #9fb8c7;
  font-size: clamp(15px, 1.4vw, 19px);
  line-height: 1.62;
}

.seo-hero-actions {
  margin-top: 28px;
}

.seo-highlight-grid {
  display: grid;
  grid-template-rows: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.seo-highlight-card {
  position: relative;
  display: grid;
  align-content: center;
  min-height: 0;
  padding: 20px 22px 20px 66px;
  border: 1px solid rgba(101, 185, 220, 0.17);
  border-radius: 18px;
  background: linear-gradient(125deg, rgba(12, 35, 53, 0.76), rgba(7, 20, 33, 0.75));
}

.seo-highlight-card > span {
  position: absolute;
  top: 20px;
  left: 20px;
  display: grid;
  width: 31px;
  height: 31px;
  place-items: center;
  border: 1px solid rgba(57, 214, 160, 0.25);
  border-radius: 9px;
  color: #71cbae;
  font-family: "IBM Plex Mono", monospace;
  font-size: 8px;
  background: rgba(57, 214, 160, 0.055);
}

.seo-highlight-card h2,
.seo-info-card h3,
.seo-step-grid h3,
.seo-audience-grid h3,
.seo-related-grid h3 {
  margin: 0;
  color: #dcebf2;
  font-weight: 600;
}

.seo-highlight-card h2 {
  font-size: 16px;
}

.seo-highlight-card p,
.seo-info-card p,
.seo-step-grid p,
.seo-audience-grid p,
.seo-related-grid p {
  margin: 7px 0 0;
  color: #7694a6;
  font-size: 11px;
  line-height: 1.55;
}

.seo-section {
  padding: clamp(26px, 3.6vw, 46px);
  border: 1px solid rgba(101, 185, 220, 0.17);
  border-radius: 25px;
  background: linear-gradient(145deg, rgba(9, 25, 41, 0.88), rgba(5, 16, 28, 0.9));
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.16);
}

.seo-intro {
  display: grid;
  grid-template-columns: minmax(270px, 0.38fr) minmax(0, 0.62fr);
  gap: 42px;
}

.seo-section-heading > span,
.seo-section-heading > div > span,
.seo-related-grid > a > span {
  color: #64cba7;
  font-family: "IBM Plex Mono", monospace;
  font-size: 9px;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.seo-section-heading h2,
.seo-cta h2 {
  max-width: 780px;
  margin: 10px 0 0;
  color: #e5f0f5;
  font-size: clamp(25px, 3.3vw, 42px);
  font-weight: 600;
  line-height: 1.08;
  letter-spacing: -0.036em;
}

.seo-section-heading-wide {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 30px;
  margin-bottom: 24px;
}

.seo-section-heading-wide > p {
  max-width: 390px;
  margin: 0;
  color: #708da0;
  font-size: 11px;
  line-height: 1.55;
}

.seo-prose {
  display: grid;
  gap: 14px;
}

.seo-prose p {
  margin: 0;
  color: #9ab1bf;
  font-size: 14px;
  line-height: 1.75;
}

.seo-card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.seo-info-card {
  min-height: 176px;
  padding: 20px;
  border: 1px solid rgba(101, 185, 220, 0.14);
  border-radius: 17px;
  background: rgba(7, 20, 33, 0.62);
}

.seo-card-index {
  display: inline-block;
  margin-bottom: 20px;
  color: #579d86;
  font-family: "IBM Plex Mono", monospace;
  font-size: 9px;
}

.seo-info-card h3 {
  font-size: 15px;
}

.seo-workflow {
  display: grid;
  grid-template-columns: minmax(270px, 0.35fr) minmax(0, 0.65fr);
  gap: 38px;
}

.seo-step-grid {
  display: grid;
  gap: 9px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.seo-step-grid li {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  padding: 17px;
  border: 1px solid rgba(101, 185, 220, 0.14);
  border-radius: 15px;
  background: rgba(7, 20, 33, 0.54);
}

.seo-step-grid li > span {
  display: grid;
  width: 36px;
  height: 36px;
  place-items: center;
  border-radius: 10px;
  color: #7bd2b5;
  font-family: "IBM Plex Mono", monospace;
  font-size: 8px;
  background: rgba(57, 214, 160, 0.07);
}

.seo-step-grid h3 {
  margin-top: 2px;
  font-size: 14px;
}

.seo-audience-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 9px;
  margin-top: 23px;
}

.seo-audience-grid article {
  min-height: 145px;
  padding: 18px;
  border: 1px solid rgba(232, 183, 103, 0.15);
  border-radius: 16px;
  background: linear-gradient(145deg, rgba(20, 29, 40, 0.72), rgba(7, 20, 33, 0.72));
}

.seo-audience-grid h3 {
  color: #e1d6bc;
  font-size: 14px;
}

.seo-faq {
  display: grid;
  grid-template-columns: minmax(240px, 0.32fr) minmax(0, 0.68fr);
  gap: 36px;
}

.seo-faq-list {
  display: grid;
  gap: 8px;
}

.seo-faq details {
  border: 1px solid rgba(101, 185, 220, 0.15);
  border-radius: 14px;
  background: rgba(7, 20, 33, 0.58);
}

.seo-faq summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 16px 18px;
  color: #d4e5ed;
  font-size: 13px;
  font-weight: 600;
  list-style: none;
  cursor: pointer;
}

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

.seo-faq summary span {
  color: #67c9a9;
  font-family: "IBM Plex Mono", monospace;
  font-size: 18px;
  font-weight: 400;
  transition: transform 160ms ease;
}

.seo-faq details[open] summary span {
  transform: rotate(45deg);
}

.seo-faq details > p {
  margin: 0;
  padding: 0 18px 18px;
  color: #829dad;
  font-size: 12px;
  line-height: 1.65;
}

.seo-related-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 9px;
  margin-top: 22px;
}

.seo-related-grid > a {
  min-height: 180px;
  padding: 20px;
  border: 1px solid rgba(101, 185, 220, 0.16);
  border-radius: 17px;
  color: inherit;
  text-decoration: none;
  background: rgba(7, 20, 33, 0.58);
  transition: transform 160ms ease, border-color 160ms ease, background 160ms ease;
}

.seo-related-grid > a:hover {
  border-color: rgba(57, 214, 160, 0.33);
  background: rgba(10, 29, 45, 0.8);
  transform: translateY(-2px);
}

.seo-related-grid h3 {
  margin-top: 18px;
  font-size: 16px;
}

.seo-cta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
  padding: clamp(28px, 4vw, 50px);
  border: 1px solid rgba(57, 214, 160, 0.24);
  border-radius: 26px;
  background:
    radial-gradient(circle at 5% 50%, rgba(57, 214, 160, 0.12), transparent 24rem),
    linear-gradient(120deg, rgba(10, 35, 42, 0.94), rgba(6, 19, 33, 0.94));
}

.seo-cta h2 {
  margin-top: 11px;
}

.seo-cta p {
  max-width: 710px;
  margin: 13px 0 0;
  color: #89a5b5;
  font-size: 12px;
  line-height: 1.6;
}

.seo-footer {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: start;
}

.seo-footer nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px 14px;
}

.seo-footer a {
  color: #638498;
  text-decoration: none;
}

.seo-footer a:hover {
  color: #8fc9df;
}

@media (max-width: 1100px) {
  .seo-nav a:nth-child(n + 4) {
    display: none;
  }

  .seo-hero {
    grid-template-columns: minmax(0, 1fr) 330px;
  }

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

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

  .seo-footer {
    grid-template-columns: 1fr;
    justify-items: center;
    text-align: center;
  }
}

@media (max-width: 820px) {
  .seo-topbar,
  .seo-shell,
  .seo-footer {
    width: min(100% - 28px, 1380px);
  }

  .seo-topbar {
    top: 8px;
    margin-top: 8px;
  }

  .seo-nav {
    display: none;
  }

  .seo-top-actions .seo-ghost-action {
    display: none;
  }

  .seo-hero,
  .seo-intro,
  .seo-workflow,
  .seo-faq {
    grid-template-columns: 1fr;
  }

  .seo-hero {
    min-height: 0;
    padding: 30px 24px;
  }

  .seo-highlight-grid {
    grid-template-rows: none;
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .seo-highlight-card {
    min-height: 170px;
    padding: 58px 16px 16px;
  }

  .seo-highlight-card > span {
    top: 16px;
    left: 16px;
  }

  .seo-section-heading-wide,
  .seo-cta {
    align-items: flex-start;
    flex-direction: column;
  }

  .seo-section-heading-wide {
    display: flex;
  }

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

  .seo-related-grid > a {
    min-height: 0;
  }
}

@media (max-width: 560px) {
  .seo-topbar,
  .seo-shell,
  .seo-footer {
    width: min(100% - 18px, 1380px);
  }

  .seo-topbar .login-brand-copy small {
    display: none;
  }

  .seo-top-actions .seo-primary-action {
    min-height: 34px;
    padding: 7px 10px;
  }

  .seo-shell {
    gap: 11px;
    padding-top: 24px;
  }

  .seo-breadcrumbs {
    padding-left: 4px;
  }

  .seo-hero,
  .seo-section,
  .seo-cta {
    border-radius: 20px;
  }

  .seo-hero h1 {
    font-size: clamp(38px, 12.5vw, 57px);
  }

  .seo-highlight-grid,
  .seo-card-grid,
  .seo-audience-grid {
    grid-template-columns: 1fr;
  }

  .seo-highlight-card,
  .seo-info-card,
  .seo-audience-grid article {
    min-height: 0;
  }

  .seo-highlight-card {
    padding: 18px 18px 18px 61px;
  }

  .seo-highlight-card > span {
    top: 18px;
    left: 16px;
  }

  .seo-section {
    padding: 24px 19px;
  }

  .seo-prose p {
    font-size: 13px;
  }

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

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

@media (prefers-reduced-motion: reduce) {
  .seo-primary-action,
  .seo-ghost-action,
  .seo-related-grid > a,
  .seo-faq summary span {
    transition: none;
  }
}