.gmk-seo {
  --gmk-seo-panel: color-mix(in srgb, var(--gmk-surface) 92%, #12071f);
  --gmk-seo-panel-soft: color-mix(in srgb, var(--gmk-surface) 88%, transparent);
  --gmk-seo-copy: color-mix(in srgb, var(--gmk-ink) 88%, transparent);
  --gmk-seo-copy-soft: color-mix(in srgb, var(--gmk-ink) 68%, transparent);
  min-height: 100vh;
}

.gmk-seo-shell {
  position: relative;
  z-index: 1;
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
}

.gmk-seo-breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  padding: 24px 0 0;
  color: var(--gmk-subtle);
  font-size: 13px;
  font-weight: 750;
  line-height: 1.45;
}

.gmk-seo-breadcrumbs a {
  color: var(--gmk-muted);
  text-decoration: none;
  transition-property: color;
  transition-duration: 160ms;
  transition-timing-function: ease-out;
}

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

.gmk-seo-hero {
  padding: 50px 0 72px;
}

.gmk-seo-hero__copy {
  max-width: 1040px;
}

.gmk-seo-hero__copy h1 {
  max-width: 1000px;
  margin: 12px 0 20px;
  color: var(--gmk-ink);
  font-size: clamp(44px, 6vw, 72px);
  line-height: 1.01;
  letter-spacing: -0.045em;
  text-wrap: balance;
}

.gmk-seo-hero__lead {
  max-width: 850px;
  margin: 0;
  color: var(--gmk-seo-copy);
  font-size: clamp(18px, 2vw, 23px);
  line-height: 1.56;
  text-wrap: pretty;
}

.gmk-seo-byline {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 14px;
  margin: 22px 0 32px;
  color: var(--gmk-seo-copy-soft);
  font-size: 13px;
  font-weight: 750;
}

.gmk-seo-byline span + span::before {
  content: "·";
  margin-right: 14px;
  color: var(--gmk-accent);
}

.gmk-seo-hero__stage {
  display: grid;
  grid-template-columns: minmax(0, 2.05fr) minmax(268px, 0.7fr);
  gap: 22px;
  align-items: start;
}

.gmk-seo-hero__media {
  position: relative;
  min-height: 460px;
  aspect-ratio: 16 / 9.7;
  margin: 0;
  overflow: hidden;
  border-radius: 28px;
  background: var(--gmk-surface);
  box-shadow:
    0 0 0 1px rgba(255, 255, 255, 0.1),
    0 26px 70px rgba(0, 0, 0, 0.34);
}

.gmk-seo-hero__media::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: linear-gradient(180deg, transparent 72%, rgba(7, 1, 12, 0.18));
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.14);
  pointer-events: none;
}

.gmk-seo-hero__media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  outline: 1px solid rgba(255, 255, 255, 0.1);
  outline-offset: -1px;
}

.gmk-seo-hero__side {
  display: grid;
  grid-template-rows: auto 1fr;
  gap: 16px;
  min-width: 0;
}

.gmk-seo-author,
.gmk-seo-hero__trial,
.gmk-seo-toc,
.gmk-seo-aside__card {
  background:
    linear-gradient(145deg, color-mix(in srgb, var(--gmk-surface) 96%, var(--t-on-primary)), var(--gmk-seo-panel));
  box-shadow:
    0 0 0 1px rgba(255, 255, 255, 0.08),
    0 18px 46px rgba(0, 0, 0, 0.24),
    inset 0 1px 0 rgba(255, 255, 255, 0.05);
}

.gmk-seo-author {
  display: grid;
  grid-template-columns: 68px minmax(0, 1fr);
  gap: 14px;
  align-items: center;
  padding: 14px;
  border-radius: 22px;
}

.gmk-seo-author img {
  display: block;
  width: 68px;
  height: 68px;
  border-radius: 14px;
  object-fit: cover;
  outline: 1px solid rgba(255, 255, 255, 0.1);
  outline-offset: -1px;
}

.gmk-seo-author span,
.gmk-seo-hero__trial > span,
.gmk-seo-toc > span,
.gmk-seo-aside__card > span,
.gmk-seo-card__body > span {
  color: var(--gmk-accent);
  font-size: 11px;
  font-weight: 900;
  letter-spacing: 0.075em;
  text-transform: uppercase;
}

.gmk-seo-author strong {
  display: block;
  margin-top: 3px;
  color: var(--gmk-ink);
  font-size: 17px;
  line-height: 1.2;
}

.gmk-seo-author p {
  margin: 5px 0 0;
  color: var(--gmk-seo-copy-soft);
  font-size: 13px;
  line-height: 1.42;
  text-wrap: pretty;
}

.gmk-seo-hero__trial {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  min-height: 0;
  padding: 26px;
  border-radius: 26px;
  background:
    radial-gradient(circle at 96% 4%, color-mix(in srgb, var(--gmk-accent) 18%, transparent), transparent 42%),
    linear-gradient(145deg, color-mix(in srgb, var(--gmk-surface) 96%, var(--t-on-primary)), var(--gmk-seo-panel));
}

.gmk-seo-hero__trial > strong {
  display: block;
  margin-top: 14px;
  color: var(--gmk-ink);
  font-size: clamp(22px, 2.1vw, 29px);
  line-height: 1.12;
  letter-spacing: -0.025em;
  text-wrap: balance;
}

.gmk-seo-hero__trial > p {
  margin: 14px 0 22px;
  color: var(--gmk-seo-copy);
  font-size: 15px;
  line-height: 1.56;
  text-wrap: pretty;
}

.gmk-seo-hero__actions {
  display: grid;
  gap: 10px;
  margin-top: auto;
}

.gmk-seo-hero__trial small {
  display: block;
  margin-top: 13px;
  color: var(--gmk-seo-copy-soft);
  font-size: 12px;
  line-height: 1.4;
  text-align: center;
}

.gmk-seo-layout {
  display: grid;
  grid-template-columns: minmax(0, 800px) minmax(260px, 1fr);
  gap: 24px;
  align-items: start;
}

.gmk-seo-article {
  min-width: 0;
  padding: clamp(34px, 5vw, 62px);
  border-radius: 30px;
  background:
    radial-gradient(circle at 94% 0%, color-mix(in srgb, var(--t-primary-light) 11%, transparent), transparent 28%),
    linear-gradient(155deg, color-mix(in srgb, var(--gmk-seo-panel) 96%, var(--t-on-primary)), var(--gmk-seo-panel));
  color: var(--gmk-seo-copy);
  box-shadow:
    0 0 0 1px rgba(255, 255, 255, 0.08),
    0 30px 80px rgba(0, 0, 0, 0.28),
    inset 0 1px 0 rgba(255, 255, 255, 0.045);
}

.gmk-seo-article > :first-child {
  margin-top: 0;
}

.gmk-seo-article h2,
.gmk-seo-article h3 {
  color: var(--gmk-ink);
  letter-spacing: -0.028em;
  text-wrap: balance;
  scroll-margin-top: 100px;
}

.gmk-seo-article h2 {
  margin: 58px 0 20px;
  padding-top: 8px;
  font-size: clamp(30px, 4vw, 43px);
  line-height: 1.1;
}

.gmk-seo-article h2:not(:first-child)::before {
  content: "";
  display: block;
  width: 54px;
  height: 3px;
  margin-bottom: 25px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--gmk-accent), color-mix(in srgb, var(--t-primary-light) 70%, transparent));
  box-shadow: 0 0 18px color-mix(in srgb, var(--gmk-accent) 26%, transparent);
}

.gmk-seo-article h3 {
  margin: 34px 0 12px;
  font-size: clamp(22px, 3vw, 28px);
  line-height: 1.2;
}

.gmk-seo-article p,
.gmk-seo-article li {
  color: var(--gmk-seo-copy);
  font-size: 18px;
  line-height: 1.76;
  text-wrap: pretty;
}

.gmk-seo-article p {
  margin: 0 0 23px;
}

.gmk-seo-article ul,
.gmk-seo-article ol {
  margin: 18px 0 30px;
  padding-left: 27px;
}

.gmk-seo-article li + li {
  margin-top: 10px;
}

.gmk-seo-article li::marker {
  color: var(--gmk-accent);
  font-weight: 900;
}

.gmk-seo-article strong {
  color: var(--gmk-ink);
}

.gmk-seo-article a {
  color: #f7d94f;
  font-weight: 800;
  text-decoration-color: color-mix(in srgb, #f7d94f 56%, transparent);
  text-decoration-thickness: 1px;
  text-underline-offset: 4px;
  transition-property: color, text-decoration-color;
  transition-duration: 160ms;
  transition-timing-function: ease-out;
}

.gmk-seo-article a:hover {
  color: #fff0a2;
  text-decoration-color: currentColor;
}

.gmk-seo-article blockquote {
  margin: 32px 0;
  padding: 22px 24px;
  border-left: 4px solid var(--gmk-accent);
  border-radius: 0 18px 18px 0;
  background: color-mix(in srgb, var(--gmk-accent) 9%, var(--gmk-surface));
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.05);
}

.gmk-seo-article blockquote p {
  margin: 0;
  color: var(--gmk-ink);
  font-weight: 750;
}

.gmk-seo-aside {
  position: sticky;
  top: 94px;
  display: grid;
  gap: 16px;
}

.gmk-seo-toc,
.gmk-seo-aside__card {
  padding: 24px;
  border-radius: 24px;
}

.gmk-seo-toc h2 {
  margin: 8px 0 14px;
  color: var(--gmk-ink);
  font-size: 24px;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

.gmk-seo-toc ol {
  display: grid;
  gap: 2px;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: gmk-seo-toc;
}

.gmk-seo-toc li {
  counter-increment: gmk-seo-toc;
}

.gmk-seo-toc a {
  position: relative;
  display: grid;
  grid-template-columns: 24px minmax(0, 1fr);
  gap: 8px;
  align-items: start;
  min-height: 40px;
  padding: 9px 7px;
  border-radius: 10px;
  color: var(--gmk-seo-copy);
  font-size: 14px;
  font-weight: 700;
  line-height: 1.35;
  text-decoration: none;
  transition-property: background-color, color;
  transition-duration: 160ms;
  transition-timing-function: ease-out;
}

.gmk-seo-toc a::before {
  content: counter(gmk-seo-toc, decimal-leading-zero);
  color: var(--gmk-accent);
  font-size: 11px;
  font-variant-numeric: tabular-nums;
  font-weight: 900;
  line-height: 1.7;
}

.gmk-seo-toc a:hover {
  background: color-mix(in srgb, var(--t-on-primary) 7%, transparent);
  color: var(--gmk-ink);
}

.gmk-seo-aside__card {
  display: grid;
  gap: 15px;
  background:
    radial-gradient(circle at 96% 3%, color-mix(in srgb, var(--gmk-accent) 16%, transparent), transparent 42%),
    linear-gradient(145deg, color-mix(in srgb, var(--gmk-surface) 96%, var(--t-on-primary)), var(--gmk-seo-panel));
}

.gmk-seo-aside__card strong {
  color: var(--gmk-ink);
  font-size: 21px;
  line-height: 1.18;
  text-wrap: balance;
}

.gmk-seo-aside__card p {
  margin: 0;
  color: var(--gmk-seo-copy);
  font-size: 14px;
  line-height: 1.54;
  text-wrap: pretty;
}

.gmk-seo-aside__demo {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  color: var(--gmk-ink);
  font-size: 14px;
  font-weight: 800;
  text-align: center;
  text-decoration: none;
  transition-property: color;
  transition-duration: 160ms;
  transition-timing-function: ease-out;
}

.gmk-seo-aside__demo:hover {
  color: var(--gmk-accent);
}

.gmk-seo-card-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  margin-top: 24px;
}

.gmk-seo-card {
  min-width: 0;
  overflow: hidden;
  border-radius: 22px;
  background:
    linear-gradient(150deg, color-mix(in srgb, var(--gmk-surface) 96%, var(--t-on-primary)), var(--gmk-seo-panel));
  box-shadow:
    0 0 0 1px rgba(255, 255, 255, 0.08),
    0 16px 38px rgba(0, 0, 0, 0.22);
  transform: translateY(0);
  transition-property: box-shadow, transform;
  transition-duration: 190ms;
  transition-timing-function: ease-out;
}

.gmk-seo-card:hover {
  box-shadow:
    0 0 0 1px color-mix(in srgb, var(--gmk-accent) 24%, transparent),
    0 20px 48px rgba(0, 0, 0, 0.28);
  transform: translateY(-3px);
}

.gmk-seo-card:active {
  transform: translateY(0) scale(0.98);
}

.gmk-seo-card__image {
  display: block;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--gmk-surface);
}

.gmk-seo-card__image img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  outline: 1px solid rgba(255, 255, 255, 0.1);
  outline-offset: -1px;
  transform: scale(1);
  transition-property: transform;
  transition-duration: 260ms;
  transition-timing-function: ease-out;
}

.gmk-seo-card:hover .gmk-seo-card__image img {
  transform: scale(1.025);
}

.gmk-seo-card__body {
  padding: 20px;
}

.gmk-seo-card h3 {
  margin: 9px 0 10px;
  font-size: 20px;
  line-height: 1.2;
  text-wrap: balance;
}

.gmk-seo-card h3 a {
  color: var(--gmk-ink);
  text-decoration: none;
}

.gmk-seo-card p {
  margin: 0 0 14px;
  color: var(--gmk-seo-copy-soft);
  font-size: 14px;
  line-height: 1.55;
  text-wrap: pretty;
}

.gmk-seo-card__more {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  color: var(--gmk-accent);
  font-size: 14px;
  font-weight: 850;
  text-decoration: none;
}

.gmk-seo-card__more::after {
  content: "→";
  margin-left: 8px;
  transition-property: transform;
  transition-duration: 160ms;
  transition-timing-function: ease-out;
}

.gmk-seo-card:hover .gmk-seo-card__more::after {
  transform: translateX(3px);
}

.gmk-seo-related {
  padding: 78px 0 28px;
}

.gmk-seo-related > h2 {
  max-width: 760px;
  margin: 10px 0 0;
  color: var(--gmk-ink);
  font-size: clamp(34px, 5vw, 50px);
  line-height: 1.05;
  letter-spacing: -0.038em;
  text-wrap: balance;
}

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

.gmk-seo-sources {
  margin-top: 50px;
  padding-top: 28px;
  border-top: 1px solid color-mix(in srgb, var(--gmk-ink) 11%, transparent);
}

.gmk-seo-sources h2 {
  margin-top: 0;
  font-size: 28px;
}

.gmk-seo-final {
  margin-top: 70px;
  border-radius: 26px;
}

.gmk-seo-final h2 {
  margin: 8px 0 10px;
  font-size: clamp(28px, 4vw, 42px);
  line-height: 1.08;
  letter-spacing: -0.03em;
  text-wrap: balance;
}

.gmk-seo-final p:not(.gmk-eyebrow) {
  margin: 0;
  color: var(--gmk-seo-copy);
  line-height: 1.55;
  text-wrap: pretty;
}

.gmk-seo a:focus-visible {
  outline: 3px solid var(--gmk-accent);
  outline-offset: 3px;
}

@media (max-width: 1040px) {
  .gmk-seo-hero__stage {
    grid-template-columns: 1fr;
  }

  .gmk-seo-hero__media {
    min-height: 0;
  }

  .gmk-seo-hero__side {
    grid-template-columns: minmax(0, 0.72fr) minmax(0, 1.28fr);
    grid-template-rows: 1fr;
  }

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

  .gmk-seo-aside {
    position: static;
    grid-template-columns: minmax(0, 1.2fr) minmax(280px, 0.8fr);
  }
}

@media (max-width: 760px) {
  .gmk-seo-shell {
    width: min(100% - 28px, 1180px);
  }

  .gmk-seo-breadcrumbs {
    padding-top: 18px;
    font-size: 12px;
  }

  .gmk-seo-breadcrumbs span[aria-current="page"] {
    display: none;
  }

  .gmk-seo-hero {
    padding: 34px 0 48px;
  }

  .gmk-seo-hero__copy h1 {
    margin-top: 10px;
    font-size: clamp(37px, 11vw, 55px);
    letter-spacing: -0.04em;
  }

  .gmk-seo-hero__lead {
    font-size: 18px;
    line-height: 1.55;
  }

  .gmk-seo-byline {
    display: grid;
    gap: 5px;
    margin-bottom: 24px;
  }

  .gmk-seo-byline span + span::before {
    content: none;
  }

  .gmk-seo-hero__media {
    width: 100%;
    min-height: 0;
    aspect-ratio: 4 / 3;
    border-radius: 22px;
  }

  .gmk-seo-hero__side,
  .gmk-seo-aside {
    grid-template-columns: 1fr;
  }

  .gmk-seo-hero__trial {
    padding: 22px;
    border-radius: 24px;
  }

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

  .gmk-seo-aside {
    order: -1;
  }

  .gmk-seo-aside__card {
    display: none;
  }

  .gmk-seo-toc {
    padding: 20px;
    border-radius: 22px;
  }

  .gmk-seo-toc ol {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 8px;
  }

  .gmk-seo-article {
    padding: 30px 22px 38px;
    border-radius: 24px;
  }

  .gmk-seo-article h2 {
    margin-top: 48px;
    font-size: clamp(29px, 9vw, 38px);
  }

  .gmk-seo-article p,
  .gmk-seo-article li {
    font-size: 17px;
    line-height: 1.7;
  }

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

  .gmk-seo-related {
    padding-top: 56px;
  }
}

@media (max-width: 520px) {
  .gmk-seo-hero__actions,
  .gmk-seo-toc ol {
    grid-template-columns: 1fr;
  }

  .gmk-seo-author {
    grid-template-columns: 58px minmax(0, 1fr);
  }

  .gmk-seo-author img {
    width: 58px;
    height: 58px;
    border-radius: 12px;
  }

  .gmk-seo-card__body {
    padding: 18px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .gmk-seo-breadcrumbs a,
  .gmk-seo-article a,
  .gmk-seo-toc a,
  .gmk-seo-aside__demo,
  .gmk-seo-card,
  .gmk-seo-card__image img,
  .gmk-seo-card__more::after {
    transition-duration: 0.01ms;
  }

  .gmk-seo-card:hover,
  .gmk-seo-card:active,
  .gmk-seo-card:hover .gmk-seo-card__image img,
  .gmk-seo-card:hover .gmk-seo-card__more::after {
    transform: none;
  }
}