:root {
  --paper: #ececea;
  --surface: #f5f5f2;
  --ink: #1c1d20;
  --muted: #5e6266;
  --line: #c9cbca;
  --blue: #3349d0;
  --pad: clamp(24px, 5vw, 82px);
  --ease: cubic-bezier(.16, 1, .3, 1);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: "DM Sans", Arial, sans-serif;
  font-size: 17px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
p { max-width: 65ch; }

.skip-link {
  position: fixed;
  z-index: 10;
  top: 12px;
  left: 12px;
  padding: 12px 18px;
  background: var(--ink);
  color: var(--paper);
  transform: translateY(-160%);
}

.skip-link:focus { transform: none; }

.seo-nav {
  position: relative;
  z-index: 2;
  display: flex;
  min-height: 72px;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--pad);
  border-bottom: 1px solid var(--line);
}

.seo-nav__brand { font-weight: 500; }
.seo-nav nav { display: flex; align-items: center; gap: clamp(18px, 2.4vw, 42px); }
.seo-nav nav a { transition: opacity .25s ease; }
.seo-nav nav a:hover { opacity: .55; }

.seo-nav__cta,
.seo-button {
  display: inline-flex;
  min-height: 52px;
  align-items: center;
  justify-content: center;
  padding: 0 25px;
  border: 1px solid var(--ink);
  border-radius: 999px;
  white-space: nowrap;
  transition: transform .35s var(--ease), background .35s ease, color .35s ease;
}

.seo-nav__cta { min-height: 44px; background: var(--ink); color: var(--paper); }
.seo-button:active, .seo-nav__cta:active { transform: scale(.98); }
.seo-button--primary { border-color: var(--blue); background: var(--blue); color: #fff; }
.seo-button--primary:hover { transform: translateY(-3px); }
.seo-button--secondary:hover { background: var(--ink); color: var(--paper); }

.seo-hero {
  display: grid;
  min-height: calc(100dvh - 73px);
  grid-template-columns: minmax(0, 1.05fr) minmax(360px, .95fr);
  align-items: center;
  gap: clamp(40px, 6vw, 110px);
  padding: 64px var(--pad);
}

.seo-hero__copy { max-width: 800px; }
.seo-hero h1 {
  max-width: 16ch;
  margin: 0;
  font-size: clamp(52px, 5.2vw, 78px);
  font-weight: 300;
  line-height: .94;
  letter-spacing: -.06em;
}

.seo-hero__copy > p { margin: 30px 0 0; font-size: clamp(19px, 1.5vw, 24px); }
.seo-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 36px; }
.seo-hero__visual { margin: 0; overflow: hidden; background: var(--ink); }
.seo-hero__visual img { width: 100%; min-height: 540px; object-fit: cover; object-position: 64% center; }

.seo-proof,
.seo-services,
.seo-fit,
.seo-work,
.seo-process,
.seo-faq,
.seo-contact,
.seo-footer { padding-right: var(--pad); padding-left: var(--pad); }

.seo-proof {
  display: grid;
  grid-template-columns: 1.2fr .8fr;
  gap: clamp(50px, 9vw, 150px);
  padding-top: 130px;
  padding-bottom: 150px;
  border-top: 1px solid var(--line);
}

.seo-proof__lead h2 { margin: 0; font-size: clamp(37px, 4.6vw, 74px); font-weight: 300; line-height: 1.05; letter-spacing: -.045em; }
.seo-proof__items { align-self: end; }
.seo-proof__items article { padding: 30px 0; border-bottom: 1px solid var(--line); }
.seo-proof__items article:first-child { border-top: 1px solid var(--line); }
.seo-proof h3 { margin: 0 0 12px; font-size: 25px; font-weight: 400; letter-spacing: -.025em; }
.seo-proof__items p { margin: 0; color: var(--muted); }

.seo-services { padding-top: 140px; padding-bottom: 150px; background: var(--surface); }
.seo-services > header, .seo-work > header { max-width: 920px; }
.seo-services h2, .seo-work h2, .seo-process h2, .seo-faq h2, .seo-contact h2 {
  margin: 0;
  font-size: clamp(43px, 6vw, 91px);
  font-weight: 300;
  line-height: 1;
  letter-spacing: -.055em;
}

.seo-services > header p, .seo-work > header p { margin: 24px 0 0; color: var(--muted); font-size: 20px; }
.seo-services__grid {
  display: grid;
  grid-template-columns: 1.2fr .8fr;
  grid-template-areas: "featured corporate" "featured frontend" "accent accent";
  gap: 18px;
  margin-top: 72px;
}

.seo-service { padding: clamp(28px, 3.5vw, 54px); background: var(--paper); }
.seo-service--featured { grid-area: featured; min-height: 540px; }
.seo-service:nth-child(2) { grid-area: corporate; }
.seo-service:nth-child(3) { grid-area: frontend; }
.seo-service--accent { grid-area: accent; background: var(--blue); color: #fff; }
.seo-service h3 { margin: 0 0 18px; font-size: clamp(31px, 3vw, 48px); font-weight: 400; line-height: 1.05; letter-spacing: -.04em; }
.seo-service p { margin: 0; }
.seo-service ul { display: grid; gap: 14px; margin: 42px 0 0; padding: 0; list-style: none; }
.seo-service li { padding-top: 14px; border-top: 1px solid var(--line); }
.seo-service--accent a { text-decoration: underline; text-underline-offset: 4px; }
.seo-services__note { margin: 32px 0 0; color: var(--muted); }
.seo-services__note a, .seo-text-link, .seo-process a, .seo-faq > p a { color: var(--blue); text-decoration: underline; text-underline-offset: 5px; }

.seo-fit { padding-top: 145px; padding-bottom: 150px; }
.seo-fit > header { max-width: 900px; }
.seo-fit h2 {
  margin: 0;
  font-size: clamp(43px, 6vw, 91px);
  font-weight: 300;
  line-height: 1;
  letter-spacing: -.055em;
}
.seo-fit > header p { margin: 24px 0 0; color: var(--muted); font-size: 20px; }
.seo-fit__grid {
  display: grid;
  grid-template-columns: 1.2fr .8fr;
  gap: 0 70px;
  margin-top: 70px;
}
.seo-fit__grid article { padding: 30px 0; border-bottom: 1px solid var(--line); }
.seo-fit__grid article:nth-child(-n+2) { border-top: 1px solid var(--line); }
.seo-fit__main { grid-row: span 2; align-self: stretch; padding-right: 8vw !important; }
.seo-fit h3 { margin: 0 0 14px; font-size: clamp(27px, 3vw, 43px); font-weight: 400; line-height: 1.05; letter-spacing: -.04em; }
.seo-fit__grid p, .seo-fit > p { margin: 0; color: var(--muted); }
.seo-fit > p { margin-top: 32px; }
.seo-fit > p a { color: var(--blue); text-decoration: underline; text-underline-offset: 5px; }

.seo-work { padding-top: 150px; padding-bottom: 160px; }
.seo-work__grid {
  display: grid;
  grid-template-columns: 1.2fr .8fr;
  gap: 20px;
  margin-top: 70px;
}
.seo-work__grid a { display: block; }
.seo-work__main { grid-row: span 2; }
.seo-work__grid img { width: 100%; height: 100%; min-height: 270px; object-fit: cover; transition: transform .65s var(--ease); }
.seo-work__grid a { overflow: hidden; background: #d8d9d8; }
.seo-work__grid a:hover img { transform: scale(1.025); }
.seo-work__grid span { display: block; padding: 17px 0 0; background: var(--paper); font-size: 18px; }
.seo-work__links { display: flex; flex-wrap: wrap; gap: 18px 34px; margin-top: 38px; }
.seo-text-link { display: inline-block; }

.seo-process { display: grid; grid-template-columns: .75fr 1.25fr; gap: clamp(50px, 10vw, 170px); padding-top: 140px; padding-bottom: 150px; background: var(--surface); }
.seo-process h2 { position: sticky; top: 40px; font-size: clamp(45px, 5vw, 78px); }
.seo-process__steps article { padding: 34px 0; border-bottom: 1px solid var(--line); }
.seo-process__steps article:first-child { border-top: 1px solid var(--line); }
.seo-process h3 { margin: 0 0 12px; font-size: 34px; font-weight: 400; letter-spacing: -.035em; }
.seo-process__steps p, .seo-process > p { margin: 0; color: var(--muted); }
.seo-process > p { grid-column: 2; }

.seo-faq { padding-top: 150px; padding-bottom: 160px; }
.seo-faq header { max-width: 900px; margin-bottom: 70px; }
.seo-faq__list { max-width: 1050px; margin-left: auto; }
.seo-faq details { border-bottom: 1px solid var(--line); }
.seo-faq details:first-child { border-top: 1px solid var(--line); }
.seo-faq summary { padding: 30px 48px 30px 0; font-size: clamp(21px, 2.2vw, 31px); cursor: pointer; }
.seo-faq details p { margin: 0; padding: 0 0 30px; color: var(--muted); }
.seo-faq > p { margin: 34px 0 0 auto; max-width: 1050px; }

.seo-contact {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: end;
  gap: 50px;
  padding-top: 130px;
  padding-bottom: 130px;
  border-top: 1px solid var(--line);
}
.seo-contact h2 { max-width: 920px; }
.seo-contact p { margin: 25px 0 0; color: var(--muted); font-size: 20px; }

.seo-footer {
  display: grid;
  grid-template-columns: 1fr 1.4fr 1fr;
  gap: 30px;
  align-items: end;
  padding-top: 48px;
  padding-bottom: 48px;
  border-top: 1px solid var(--line);
  color: var(--muted);
}
.seo-footer > a { color: var(--ink); font-weight: 500; }
.seo-footer p { margin: 0; }
.seo-footer div { display: flex; justify-content: flex-end; gap: 22px; }

.seo-article { padding-bottom: 140px; }
.seo-article__hero {
  max-width: 1240px;
  padding: clamp(72px, 9vw, 145px) var(--pad) clamp(58px, 7vw, 110px);
}
.seo-article__eyebrow { margin: 0 0 28px; color: var(--blue); font-weight: 500; }
.seo-article__hero h1 {
  max-width: 14ch;
  margin: 0;
  font-size: clamp(50px, 7vw, 106px);
  font-weight: 300;
  line-height: .95;
  letter-spacing: -.06em;
}
.seo-article__dek { margin: 36px 0 0; font-size: clamp(20px, 2vw, 28px); }
.seo-article__byline { display: flex; align-items: center; gap: 16px; margin-top: 38px; color: var(--muted); }
.seo-article__byline img { width: 58px; height: 58px; border-radius: 50%; object-fit: cover; }
.seo-article__byline p { margin: 0; }
.seo-article__byline a { color: var(--ink); text-decoration: underline; text-underline-offset: 4px; }
.seo-article__cover { margin: 0 var(--pad); overflow: hidden; background: var(--surface); }
.seo-article__cover img { width: 100%; max-height: 760px; object-fit: cover; }
.seo-article__layout {
  display: grid;
  grid-template-columns: minmax(190px, .55fr) minmax(0, 1.45fr);
  gap: clamp(60px, 10vw, 170px);
  padding: clamp(90px, 11vw, 170px) var(--pad) 0;
}
.seo-article__toc { position: sticky; top: 34px; display: flex; height: fit-content; flex-direction: column; gap: 12px; }
.seo-article__toc strong { margin-bottom: 8px; }
.seo-article__toc a { color: var(--muted); }
.seo-article__toc a:hover { color: var(--blue); }
.seo-article__body { max-width: 860px; }
.seo-article__body section { scroll-margin-top: 36px; margin-bottom: clamp(75px, 9vw, 130px); }
.seo-article__body h2 { margin: 0 0 30px; font-size: clamp(37px, 4.8vw, 68px); font-weight: 300; line-height: 1; letter-spacing: -.05em; }
.seo-article__body h3 { margin: 0 0 18px; font-size: clamp(25px, 2.5vw, 34px); font-weight: 400; letter-spacing: -.035em; }
.seo-article__body p { margin: 0 0 24px; font-size: 19px; }
.seo-article__body a:not(.seo-button) { color: var(--blue); text-decoration: underline; text-underline-offset: 5px; }
.seo-article__body ul { display: grid; gap: 13px; padding-left: 23px; }
.seo-article__checklist, .seo-article__mistakes { padding: clamp(28px, 4vw, 52px); background: var(--surface); }
.seo-article__cta { padding-top: 60px; border-top: 1px solid var(--line); }
.seo-article__cta .seo-button { margin-top: 15px; color: #fff; text-decoration: none; }

[data-reveal] { opacity: 0; transform: translateY(26px); transition: opacity .75s ease, transform .8s var(--ease); }
[data-reveal].is-visible { opacity: 1; transform: none; }
:focus-visible { outline: 3px solid var(--blue); outline-offset: 4px; }

@media (prefers-color-scheme: dark) {
  :root {
    --paper: #191a1d;
    --surface: #212226;
    --ink: #f0f0ec;
    --muted: #b8babd;
    --line: #404247;
  }
  .seo-button--primary, .seo-service--accent { color: #fff; }
  .seo-work__grid span { background: var(--paper); }
}

@media (max-width: 900px) {
  .seo-nav nav > a:not(.seo-nav__cta) { display: none; }
  .seo-hero { grid-template-columns: 1fr; padding-top: 48px; }
  .seo-hero h1 { max-width: 14ch; font-size: clamp(47px, 12vw, 78px); }
  .seo-hero__visual img { min-height: 420px; }
  .seo-proof, .seo-process { grid-template-columns: 1fr; }
  .seo-proof { padding-top: 95px; padding-bottom: 105px; }
  .seo-services, .seo-fit, .seo-work, .seo-faq { padding-top: 100px; padding-bottom: 110px; }
  .seo-services__grid { grid-template-columns: 1fr; grid-template-areas: "featured" "corporate" "frontend" "accent"; }
  .seo-service--featured { min-height: auto; }
  .seo-fit__grid { grid-template-columns: 1fr; gap: 0; }
  .seo-fit__grid article:nth-child(2) { border-top: 0; }
  .seo-fit__main { grid-row: auto; padding-right: 0 !important; }
  .seo-process { padding-top: 100px; padding-bottom: 110px; }
  .seo-process h2 { position: static; }
  .seo-process > p { grid-column: 1; }
  .seo-contact { grid-template-columns: 1fr; align-items: start; padding-top: 100px; padding-bottom: 100px; }
  .seo-contact .seo-button { justify-self: start; }
  .seo-footer { grid-template-columns: 1fr; }
  .seo-footer div { justify-content: flex-start; }
  .seo-article__layout { grid-template-columns: 1fr; gap: 65px; }
  .seo-article__toc { position: static; padding-bottom: 34px; border-bottom: 1px solid var(--line); }
}

@media (max-width: 620px) {
  body { font-size: 16px; }
  .seo-nav { min-height: 64px; }
  .seo-nav__cta { min-height: 42px; padding: 0 19px; }
  .seo-hero { min-height: auto; padding-top: 42px; padding-bottom: 82px; }
  .seo-hero h1 { font-size: 45px; line-height: .98; }
  .seo-hero__copy > p { margin-top: 23px; font-size: 18px; }
  .seo-actions { align-items: stretch; flex-direction: column; }
  .seo-button { width: 100%; }
  .seo-hero__visual img { min-height: 340px; object-position: 65% center; }
  .seo-proof { gap: 55px; }
  .seo-proof__lead h2 { font-size: 38px; }
  .seo-services h2, .seo-fit h2, .seo-work h2, .seo-process h2, .seo-faq h2, .seo-contact h2 { font-size: 45px; }
  .seo-services__grid, .seo-work__grid { margin-top: 48px; }
  .seo-work__grid { grid-template-columns: 1fr; }
  .seo-work__main { grid-row: auto; }
  .seo-work__grid img { min-height: 230px; aspect-ratio: 16 / 10; }
  .seo-faq header { margin-bottom: 48px; }
  .seo-faq summary { padding: 24px 35px 24px 0; font-size: 20px; }
  .seo-footer div { flex-direction: column; gap: 8px; }
  .seo-article { padding-bottom: 90px; }
  .seo-article__hero h1 { font-size: 48px; }
  .seo-article__cover { margin-right: 0; margin-left: 0; }
  .seo-article__cover img { min-height: 280px; }
  .seo-article__layout { padding-top: 75px; }
  .seo-article__body p { font-size: 17px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
  [data-reveal] { opacity: 1; transform: none; }
}