:root { color-scheme: dark; }

* { box-sizing: border-box; }

body {
  min-height: 100vh;
  margin: 0;
  background:
    radial-gradient(circle at 18% 0%, rgba(0, 114, 255, .14), transparent 32rem),
    radial-gradient(circle at 84% 12%, rgba(0, 242, 254, .08), transparent 28rem),
    #050b18;
  color: #e8f1ff;
  font-family: 'Plus Jakarta Sans', sans-serif;
}

a { color: inherit; }

.seo-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 64px;
  padding: 0 max(20px, calc((100vw - 1080px) / 2));
  border-bottom: 1px solid rgba(148, 163, 184, .13);
  background: rgba(5, 11, 24, .86);
  backdrop-filter: blur(14px);
}

.seo-brand {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-weight: 800;
  text-decoration: none;
}

.seo-brand img {
  width: 34px;
  height: 34px;
  padding: 4px;
  border: 1px solid rgba(103, 232, 249, .2);
  border-radius: 10px;
  object-fit: contain;
}

.seo-language {
  padding: 8px 11px;
  border: 1px solid rgba(148, 163, 184, .16);
  border-radius: 9px;
  color: #9eb3ce;
  font-size: .76rem;
  font-weight: 700;
  text-decoration: none;
}

main {
  width: min(1080px, calc(100% - 36px));
  margin: 0 auto;
}

.seo-hero {
  max-width: 820px;
  padding: 84px 0 58px;
}

.seo-eyebrow {
  color: #22d3ee;
  font-size: .72rem;
  font-weight: 800;
  letter-spacing: .12em;
  text-transform: uppercase;
}

.seo-hero h1 {
  max-width: 800px;
  margin: 12px 0 18px;
  font-size: clamp(2.25rem, 6vw, 4.7rem);
  line-height: 1.02;
  letter-spacing: -.055em;
}

.seo-hero p {
  max-width: 720px;
  margin: 0;
  color: #92a8c3;
  font-size: clamp(.95rem, 1.7vw, 1.13rem);
  line-height: 1.75;
}

.seo-cta {
  display: inline-flex;
  min-height: 46px;
  align-items: center;
  margin-top: 28px;
  padding: 0 20px;
  border-radius: 11px;
  background: linear-gradient(135deg, #087cff, #00e5ff);
  color: #02101c;
  font-size: .86rem;
  font-weight: 800;
  text-decoration: none;
}

.seo-card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.seo-card-grid article,
.seo-card-grid .seo-benefit-link,
.seo-guide,
.seo-faq,
.seo-responsible {
  border: 1px solid rgba(148, 163, 184, .13);
  border-radius: 18px;
  background: rgba(10, 19, 37, .78);
}

.seo-card-grid article,
.seo-card-grid .seo-benefit-link { padding: 24px; }

.seo-card-grid .seo-benefit-link {
  display: block;
  text-decoration: none;
  transition: border-color .2s ease, transform .2s ease;
}

.seo-card-grid .seo-benefit-link:hover {
  border-color: rgba(34, 211, 238, .42);
  transform: translateY(-2px);
}

.seo-card-grid h2,
.seo-guide h2,
.seo-faq h2,
.seo-responsible h2 {
  margin: 0;
  color: #f1f7ff;
  font-size: 1rem;
}

.seo-card-grid p,
.seo-guide li,
.seo-faq p,
.seo-responsible p {
  color: #849ab7;
  font-size: .82rem;
  line-height: 1.65;
}

.seo-guide {
  display: grid;
  grid-template-columns: .8fr 1.2fr;
  gap: 34px;
  margin-top: 14px;
  padding: 30px;
}

.seo-guide h2 { margin-top: 8px; font-size: 1.45rem; }

.seo-guide ol {
  display: grid;
  gap: 12px;
  margin: 0;
  padding-left: 24px;
}

.seo-faq,
.seo-responsible {
  margin-top: 14px;
  padding: 30px;
}

.seo-faq h2,
.seo-responsible h2 { margin-bottom: 18px; font-size: 1.35rem; }

.seo-faq details {
  padding: 15px 0;
  border-top: 1px solid rgba(148, 163, 184, .12);
}

.seo-faq summary {
  color: #dce9f8;
  font-size: .86rem;
  font-weight: 700;
  cursor: pointer;
}

.seo-faq p { margin: 9px 0 0; }
.seo-responsible p { margin: 0; }

footer {
  display: flex;
  justify-content: center;
  gap: 22px;
  width: min(1080px, calc(100% - 36px));
  margin: 36px auto 0;
  padding: 26px 0 36px;
  color: #7288a5;
  font-size: .74rem;
}

footer a { text-decoration: none; }

@media (max-width: 760px) {
  .seo-hero { padding: 56px 0 38px; }
  .seo-card-grid { grid-template-columns: 1fr; }
  .seo-guide { grid-template-columns: 1fr; gap: 20px; padding: 22px; }
  .seo-faq, .seo-responsible { padding: 22px; }
}