@import url('https://fonts.googleapis.com/css2?family=Manrope:wght@500;600;700;800&family=Public+Sans:wght@400;500;600;700&display=swap');

:root {
  --seo-bg: oklch(0.98 0.004 85);
  --seo-bg-soft: oklch(0.962 0.006 85);
  --seo-surface: rgba(255, 255, 255, 0.72);
  --seo-surface-strong: rgba(255, 255, 255, 0.86);
  --seo-text-strong: oklch(0.29 0.012 245);
  --seo-text: oklch(0.42 0.013 245);
  --seo-muted: oklch(0.58 0.012 240);
  --seo-line: color-mix(in oklab, var(--seo-text-strong) 9%, white);
  --seo-accent: oklch(0.47 0.04 238);
  --seo-accent-soft: color-mix(in oklab, var(--seo-accent) 9%, white);
  --seo-font-display: 'Manrope', 'Segoe UI', sans-serif;
  --seo-font-body: 'Public Sans', 'Segoe UI', sans-serif;
  color: var(--seo-text);
  background: var(--seo-bg);
  font-family: var(--seo-font-body);
  font-size: 18px;
  line-height: 1.6;
  font-synthesis: none;
  font-kerning: normal;
  font-optical-sizing: auto;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  background:
    radial-gradient(circle at 50% 10%, rgba(255, 255, 255, 0.9), transparent 24%),
    radial-gradient(circle at 82% 22%, rgba(208, 220, 228, 0.07), transparent 22%),
    linear-gradient(180deg, var(--seo-bg) 0%, var(--seo-bg-soft) 100%);
  color: var(--seo-text);
}

a,
button {
  font: inherit;
}

a {
  color: inherit;
}

h1,
h2,
h3 {
  margin: 0;
  color: var(--seo-text-strong);
  font-family: var(--seo-font-display);
  line-height: 1;
  letter-spacing: -0.04em;
}

h1 {
  font-size: clamp(2.9rem, 2.1rem + 2.4vw, 4.8rem);
}

h2 {
  font-size: clamp(2rem, 1.55rem + 1.5vw, 3rem);
}

h3 {
  font-size: clamp(1.3rem, 1.16rem + 0.5vw, 1.6rem);
}

p {
  margin: 0;
}

.seo-shell {
  width: min(100%, 78rem);
  margin: 0 auto;
  padding-inline: clamp(1.1rem, 1rem + 0.8vw, 2rem);
}

.seo-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(10px);
  background:
    linear-gradient(180deg, rgba(248, 246, 242, 0.86), rgba(248, 246, 242, 0.74)),
    radial-gradient(circle at 78% -10%, rgba(203, 218, 229, 0.08), transparent 22%);
  border-bottom: 1px solid rgba(69, 76, 84, 0.06);
}

.seo-header__inner,
.seo-footer__inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.seo-header__inner {
  min-height: 4.2rem;
}

.seo-header__group {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.85rem;
  flex-wrap: wrap;
}

.seo-brand,
.seo-brand:visited {
  color: var(--seo-text-strong);
  font-family: var(--seo-font-display);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-decoration: none;
  text-transform: uppercase;
}

.seo-nav {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  flex-wrap: wrap;
}

.seo-nav a,
.seo-nav a:visited {
  color: var(--seo-muted);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-decoration: none;
  text-transform: uppercase;
}

.seo-header__cta,
.seo-header__cta:visited,
.seo-button,
.seo-button:visited {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.8rem;
  padding: 0.8rem 1.2rem;
  border-radius: 999px;
  background: color-mix(in oklab, var(--seo-accent) 12%, white);
  color: var(--seo-accent);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-decoration: none;
  text-transform: uppercase;
  box-shadow: 0 12px 22px -22px rgba(45, 69, 92, 0.2);
}

.seo-button,
.seo-button:visited {
  background: var(--seo-accent);
  color: white;
  font-size: 0.76rem;
  box-shadow: 0 14px 24px -24px rgba(45, 69, 92, 0.32);
}

.seo-main {
  padding-block: clamp(3rem, 4.4vw, 4.6rem) clamp(4.6rem, 6.6vw, 6.8rem);
}

.seo-breadcrumbs {
  margin-bottom: 1.55rem;
  color: var(--seo-muted);
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.seo-breadcrumbs ol {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin: 0;
  padding: 0;
  list-style: none;
}

.seo-breadcrumbs li::after {
  margin-left: 0.5rem;
  content: '/';
}

.seo-breadcrumbs li:last-child::after {
  content: '';
}

.seo-hero,
.seo-summary,
.seo-callout,
.seo-crosslinks,
.seo-cta {
  position: relative;
  overflow: clip;
  padding: 1.45rem;
  border: 1px solid color-mix(in oklab, var(--seo-line) 88%, white);
  border-radius: 1.35rem;
  background: var(--seo-surface);
}

.seo-hero {
  display: grid;
  gap: 1.1rem;
  background:
    radial-gradient(circle at 100% 0%, rgba(196, 212, 223, 0.08), transparent 24%),
    radial-gradient(circle at 75% 70%, rgba(214, 222, 228, 0.06), transparent 24%),
    linear-gradient(180deg, var(--seo-surface-strong), rgba(247, 244, 239, 0.88));
  box-shadow: 0 18px 36px -38px rgba(58, 70, 80, 0.16);
}

.seo-summary,
.seo-crosslinks,
.seo-cta {
  background:
    radial-gradient(circle at 100% 0%, rgba(201, 216, 226, 0.05), transparent 22%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.82), rgba(248, 245, 240, 0.9));
}

.seo-callout {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.76), rgba(248, 245, 240, 0.88));
}

.seo-hero::before,
.seo-summary::before,
.seo-crosslinks::before,
.seo-cta::before {
  position: absolute;
  inset: 0 auto auto 0;
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, rgba(94, 112, 127, 0.2), rgba(94, 112, 127, 0.04));
  content: '';
}

.seo-kicker,
.seo-section__kicker,
.seo-summary__caption,
.seo-faq__caption,
.seo-reference__caption,
.seo-callout__label {
  color: var(--seo-muted);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.seo-byline {
  display: flex;
  gap: 0.75rem 1.4rem;
  flex-wrap: wrap;
  color: var(--seo-muted);
  font-size: 0.92rem;
}

.seo-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.7fr) minmax(17rem, 24rem);
  gap: clamp(2rem, 3.4vw, 3.8rem);
  margin-top: clamp(2.2rem, 4.4vw, 3.4rem);
}

.seo-flow,
.seo-side,
.seo-section,
.seo-faq,
.seo-references,
.seo-callout,
.seo-cta {
  display: grid;
  gap: 0.9rem;
}

.seo-badge {
  display: inline-flex;
  align-items: center;
  justify-content: flex-start;
  margin: 0;
  padding-top: 0.1rem;
}

.seo-badge img {
  display: block;
  width: clamp(9.2rem, 42vw, 10.6rem);
  max-width: 100%;
  height: auto;
}

.seo-side {
  align-content: start;
  gap: 1.15rem;
}

.seo-summary table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 1.05rem;
}

.seo-summary th,
.seo-summary td {
  padding: 0.9rem 0;
  border-top: 1px solid var(--seo-line);
  text-align: left;
  vertical-align: top;
}

.seo-summary th {
  width: 33%;
  color: var(--seo-text-strong);
  font-size: 0.92rem;
  font-weight: 600;
}

.seo-summary td {
  font-size: 0.95rem;
}

.seo-section {
  padding-top: 1.6rem;
  border-top: 1px solid var(--seo-line);
}

.seo-section ul,
.seo-section ol,
.seo-crosslinks ul,
.seo-references ol {
  display: grid;
  gap: 0.82rem;
  margin: 0;
  padding-left: 1.15rem;
}

.seo-note {
  padding: 0.9rem 1rem;
  border-left: 3px solid var(--seo-accent);
  background: rgba(255, 255, 255, 0.68);
}

.seo-faq details {
  padding: 1.06rem 1.08rem;
  border: 1px solid color-mix(in oklab, var(--seo-line) 84%, white);
  border-radius: 1rem;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.68), rgba(250, 247, 242, 0.86));
}

.seo-faq summary {
  cursor: pointer;
  color: var(--seo-text-strong);
  font-weight: 600;
  list-style: none;
}

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

.seo-faq p {
  margin-top: 0.7rem;
}

.seo-inline-link,
.seo-inline-link:visited,
.seo-crosslinks a,
.seo-crosslinks a:visited,
.seo-references a,
.seo-references a:visited,
.seo-footer a,
.seo-footer a:visited {
  color: var(--seo-text-strong);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.16em;
}

.seo-footer {
  padding-block: 1.7rem 2.8rem;
  border-top: 1px solid var(--seo-line);
  color: var(--seo-muted);
  font-size: 0.92rem;
}

@media (max-width: 1024px) and (min-width: 721px) {
  .seo-layout {
    grid-template-columns: 1fr;
    gap: 1.8rem;
  }

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

  .seo-crosslinks,
  .seo-cta {
    height: 100%;
  }
}

@media (max-width: 900px) {
  .seo-layout {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  :root {
    font-size: 16px;
  }

  .seo-header {
    position: static;
    backdrop-filter: none;
  }

  .seo-header__inner {
    display: grid;
    grid-template-columns: auto auto;
    align-items: flex-start;
    justify-content: space-between;
    padding-block: 0.95rem;
  }

  .seo-header__group {
    display: contents;
  }

  .seo-nav {
    grid-column: 1 / -1;
    grid-row: 2;
    gap: 0.45rem;
    justify-content: flex-start;
    flex-wrap: nowrap;
    overflow-x: auto;
    scroll-snap-type: x proximity;
    scrollbar-width: none;
    padding-top: 0.08rem;
  }

  .seo-nav::-webkit-scrollbar {
    display: none;
  }

  .seo-nav a,
  .seo-nav a:visited {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex: 0 0 auto;
    min-height: 2.18rem;
    padding: 0.48rem 0.7rem;
    border: 1px solid rgba(93, 105, 114, 0.08);
    border-radius: 999px;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.52), rgba(250, 248, 244, 0.76));
    font-size: 0.64rem;
    scroll-snap-align: start;
  }

  .seo-header__cta,
  .seo-header__cta:visited {
    grid-column: 2;
    grid-row: 1;
    min-height: 2.72rem;
    padding: 0.74rem 0.96rem;
    font-size: 0.64rem;
  }

  .seo-hero,
  .seo-summary,
  .seo-callout,
  .seo-crosslinks,
  .seo-cta {
    padding: 1.05rem;
    border-radius: 1rem;
  }

  .seo-layout {
    gap: 1.5rem;
    margin-top: 1.7rem;
  }

  .seo-side {
    grid-template-columns: 1fr;
    gap: 0.9rem;
  }

  .seo-badge img {
    width: 9rem;
  }

  .seo-summary th,
  .seo-summary td {
    display: block;
    width: 100%;
    padding-block: 0.55rem;
  }
}