*{margin:0;padding:0;box-sizing:border-box}

:root{
  --pad:64px;
  --black:#0A0A0A;
  --white:#fff;
  --gray-1:#8A8A8A;
  --gray-2:#A0A0A0;
  --gray-3:#E5E5E5;
  --gray-ph:#D9D9D9;
}

html{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}

body{
  font-family:'Manrope',-apple-system,sans-serif;
  color:var(--black);
  background:var(--white);
}

.page{width:100%;max-width:1440px;margin:0 auto;position:relative}

/* ---------- NAV ---------- */
.nav{
  padding:0 var(--pad);
  height:64px;
  display:flex;align-items:center;
  border-bottom:1px solid var(--gray-3);
}
.nav a{color:inherit;text-decoration:none}

.nav__logo{
  position:relative;
  display:inline-block;
  font-family:'Instrument Sans',sans-serif;
  font-weight:600;font-size:15px;letter-spacing:.04em;
  width:163px;flex:0 0 auto;
}
.nav__logo::after{content:"";position:absolute;left:49px;bottom:4px;width:4px;height:4px;border-radius:50%;background:var(--black);}

.nav__menu{display:flex;align-items:center;height:100%;flex:1}
.nav__burger{display:none}
.nav__group{display:flex;align-items:center;height:100%}
.nav__cap{display:none}
.nav__group--pages{margin-left:56px}
.nav__group--contact{margin-left:auto}

.nav__link{
  font-size:13px;letter-spacing:.02em;
  padding:0 20px;line-height:64px;white-space:nowrap;
  opacity:.92;transition:opacity .2s;
}
.nav__link:hover{opacity:.5}
.nav__has-sub{position:relative;display:flex;align-items:center;height:100%}
.nav__sub{
  position:absolute;top:100%;left:0;
  background:var(--white);
  border:1px solid var(--gray-3);
  padding:0;
  opacity:0;visibility:hidden;transform:translateY(6px);
  transition:opacity .18s ease,transform .18s ease,visibility .18s;
  z-index:60;
}
.nav__has-sub:hover .nav__sub{opacity:1;visibility:visible;transform:translateY(0)}
.nav__sub a{
  display:block;padding:14px 20px;
  font-size:13px;letter-spacing:.02em;white-space:nowrap;
  color:var(--black);text-decoration:none;opacity:.92;transition:opacity .2s;
}
.nav__sub a + a{border-top:1px solid var(--gray-3)}
.nav__sub a:hover{opacity:.5}
.nav__sub-toggle{display:none}
.nav__contact{display:none}
.nav__link.is-active{font-weight:600;opacity:1}

.nav__group--services .nav__link{border-left:1px solid var(--gray-3)}
.nav__group--services .nav__link:last-child{border-right:1px solid var(--gray-3)}
.nav__group--services .nav__has-sub:last-child .nav__link{border-right:1px solid var(--gray-3)}
.nav__group--contact .nav__link{border-left:1px solid var(--gray-3);padding-right:0}
.nav__group--contact .nav__link{position:relative;padding-right:12px}
.nav__group--contact .nav__link::after{
  content:"";position:absolute;right:0;bottom:26px;
  width:4px;height:4px;border-radius:50%;background:var(--black);
  transition:opacity .2s;
}

/* ---------- HERO ---------- */
.hero{padding:110px var(--pad) 80px}

.hero__title{
  font-family:'Instrument Sans',sans-serif;
  font-weight:700;
  font-size:200px;
  line-height:.85;
  letter-spacing:-.035em;
  text-transform:uppercase;
  margin-inline-start:-.055em;
}

.hero__sub{
  margin-left:526px;
  margin-top:64px;
  max-width:520px;
  font-size:16px;
  line-height:1.65;
}

/* ---------- FEATURED (black block) ---------- */
/* ---------- FILTER BAR (topics + view toggle) ---------- */
.filters{margin:96px var(--pad) 0}
.filter{
  display:flex;align-items:center;gap:32px;
  padding-bottom:20px;border-bottom:1px solid var(--black);
}
.filter__item{
  font-size:15px;letter-spacing:.04em;text-transform:uppercase;
  color:var(--gray-1);cursor:pointer;transition:color .2s ease;
}
.filter__item:hover{color:var(--black)}
.filter__item.is-active{color:var(--black);font-weight:600}
.filter__count{margin-left:32px;font-size:15px;color:var(--gray-2)}
.filter__view{display:flex;gap:16px;align-items:center;margin-left:auto}
.filter__view-btn{
  font-size:13px;letter-spacing:.06em;text-transform:uppercase;
  color:var(--gray-1);cursor:pointer;background:none;border:none;padding:0;
  transition:color .2s ease;
}
.filter__view-btn:hover{color:var(--black)}
.filter__view-btn.is-active{color:var(--black);font-weight:600}

/* ---------- TILES (Selected Work card style) ---------- */
.grid{
  margin:48px var(--pad) 0;
  display:grid;grid-template-columns:repeat(3,1fr);
  gap:34px;
}
.card{
  position:relative;aspect-ratio:388/477;
  text-decoration:none;color:var(--black);
  border:1px solid var(--gray-3);background:var(--white);
  overflow:hidden;
}
.card__img{
  position:absolute;inset:0;width:100%;height:100%;
  object-fit:cover;object-position:top left;display:block;
  transition:transform .6s ease;
}
.card:hover .card__img{transform:scale(1.02)}
.card__media{position:absolute;top:28px;left:28px;width:185px;height:185px;background:var(--gray-ph);overflow:hidden}
.card__tag{
  position:absolute;top:168px;left:96px;z-index:2;
  writing-mode:vertical-rl;transform:rotate(180deg);
  font-size:12px;letter-spacing:.02em;text-transform:uppercase;
  color:var(--black);background:var(--white);padding:8px 3px 2px;
}
.card__foot{
  position:absolute;left:28px;right:28px;bottom:28px;z-index:2;
  display:flex;align-items:flex-end;justify-content:flex-end;
}
.card__name{
  font-family:'Manrope',sans-serif;font-weight:400;
  font-size:16px;line-height:1.35;color:var(--black);
  text-align:right;max-width:230px;
}
.card--dark{background:var(--black);border-color:var(--black)}
.card--dark .card__tag{color:var(--white);background:var(--black)}
.card--dark .card__name{color:var(--white)}

/* view switching */
.view-lines{display:none}
.is-view-lines .grid{display:none}
.is-view-lines .view-lines{display:block}


/* ---------- CTA (light, same as platform.html) ---------- */
.cta{
  margin:160px var(--pad) 120px;
  border-top:1px solid var(--black);
  padding-top:56px;
  display:grid;
  grid-template-columns:calc(732px - var(--pad)) minmax(0,auto) 1fr;
  gap:0;
  align-items:start;
}

.cta__title{
  font-family:'Instrument Sans',sans-serif;
  font-weight:600;font-size:34px;line-height:1.2;letter-spacing:-.015em;
  text-transform:none;
  max-width:440px;
}

.cta__rtext{
  justify-self:end;
  padding-left:40px;
  max-width:400px;
  font-size:16px;line-height:1.65;color:var(--gray-1);
  margin:0;
}

.cta__actions{
  margin-top:10px;
  display:flex;flex-direction:column;align-items:flex-start;
}

.cta__btn{
  font-family:'Instrument Sans',sans-serif;
  font-weight:600;font-size:12px;letter-spacing:.06em;text-transform:uppercase;
  color:var(--white);background:var(--black);
  border:1px solid var(--black);
  padding:14px 32px;text-decoration:none;white-space:nowrap;
  transition:background .25s ease, color .25s ease;
  cursor:pointer;
}
.cta__btn:hover{background:none;color:var(--black)}

.cta__contact{
  margin-top:20px;
  font-size:15px;color:var(--gray-1);
}
.cta__ck{
  color:var(--gray-2);margin-right:8px;
  text-transform:uppercase;letter-spacing:.04em;font-size:12px;
}
.cta__contact a{color:var(--gray-1);text-decoration:none;transition:opacity .2s}
.cta__contact a:hover{opacity:.55}


.footer{border-top:1px solid var(--gray-3);padding:0 var(--pad) 40px;position:relative}
.footer__top{display:flex;padding-top:64px}
.footer__brand{
  flex:0 0 calc(409px - var(--pad));
  padding-right:40px;
}
.footer__logo{
  position:relative;display:inline-block;
  font-family:'Instrument Sans',sans-serif;
  font-weight:600;font-size:40px;letter-spacing:.04em;
  color:var(--black);text-decoration:none;
}
.footer__logo::after{content:"";position:absolute;left:132px;bottom:9px;width:9px;height:9px;border-radius:50%;background:var(--black)}
.footer__desc{margin-top:20px;font-size:15px;color:var(--gray-1)}
.footer__mail{
  display:inline-block;margin-top:24px;font-size:15px;color:var(--black);
  text-decoration:none;border-bottom:1px solid var(--gray-2);padding-bottom:2px;
  transition:border-color .2s;
}
.footer__mail:hover{border-color:var(--black)}

.footer__cols{flex:1;display:flex;gap:0}
.footer__col{flex:0 0 auto}
.footer__col--srv1{flex:0 0 calc(732px - 409px);padding-top:calc(18px * 1.2 + 36px)}
.footer__col--srv2{flex:0 0 278px}
.footer__col--company{flex:1}
.footer__col--connect{flex:0 0 auto;text-align:left}
.footer__row--low{margin-top:72px}
.footer__col--srv2 .footer__row{margin-left:-29px}
.footer__subs{margin-top:0;margin-left:0}
.footer__sub{
  display:block;margin-bottom:24px;
  font-size:16px;color:var(--gray-1);text-decoration:none;
  transition:color .2s;
}
.footer__sub:hover{color:var(--black)}
.footer__head{
  font-size:18px;letter-spacing:.06em;text-transform:uppercase;
  color:var(--gray-1);margin-bottom:36px;
}
.footer__row{
  display:flex;align-items:baseline;gap:12px;
  margin-bottom:24px;text-decoration:none;color:inherit;
}
.footer__num{font-size:14px;color:var(--gray-2)}
.footer__name{
  font-size:16px;letter-spacing:.02em;text-transform:uppercase;
  border-bottom:1px solid transparent;padding-bottom:2px;
  transition:border-color .2s;
}
.footer__row:hover .footer__name{border-bottom-color:var(--black)}
.footer__link{
  display:block;margin-bottom:24px;
  font-size:16px;color:var(--black);text-decoration:none;
  transition:opacity .2s;
}
.footer__link:hover{opacity:.55}

.footer__col > *:last-child{margin-bottom:0}
.footer__subs:last-child .footer__sub:last-child{margin-bottom:0}

.footer__bottom{
  margin-top:64px;padding-top:24px;border-top:1px solid var(--gray-3);
  display:flex;align-items:center;
  font-size:14px;color:var(--gray-2);
}
.footer__copy{flex:0 0 calc(732px - var(--pad))}
.footer__legal{flex:1;display:flex;gap:0}
.footer__legal a:nth-child(1){flex:0 0 278px}
.footer__legal a:nth-child(2){flex:0 0 276px}
.footer__legal a:nth-child(3){flex:1}
.footer__legal a{color:inherit;text-decoration:none;transition:color .2s}
.footer__legal a:hover{color:var(--black)}

/* ---------- CASES: metrics in cards ---------- */
.featured__metrics{
  display:flex;
  gap:48px;
  margin-bottom:40px;
}
.featured__metric{display:flex;flex-direction:column;gap:6px}
.featured__num{
  font-family:'Instrument Sans',sans-serif;
  font-weight:600;font-size:34px;line-height:1;letter-spacing:-.02em;
  color:#fff;
}
.featured__cap{
  font-size:13px;line-height:1.4;
  color:rgba(255,255,255,.55);
  max-width:120px;
}

.card__client{
  margin-top:20px;
  font-size:13px;letter-spacing:.04em;text-transform:uppercase;
  color:var(--gray-2);
}
.card__stats{
  margin-top:16px;
  display:flex;gap:32px;
  padding-top:16px;
  border-top:1px solid var(--gray-3);
}
.card__stat{display:flex;flex-direction:column;gap:4px}
.card__num{
  font-family:'Instrument Sans',sans-serif;
  font-weight:600;font-size:22px;line-height:1;letter-spacing:-.015em;
}
.card__cap{font-size:12px;line-height:1.4;color:var(--gray-1)}

.grid{gap:56px 24px}

/* ============================================================
   RESPONSIVE LAYER — cases (mobile)
   ============================================================ */

/* ===== NAV BURGER + FOOTER COLLAPSE (<=1439) ===== */
@media (max-width:1439px){
  .nav{padding:0 var(--pad);justify-content:space-between;position:relative;z-index:50}
  .nav__logo{width:auto}
  .nav__burger{
    display:flex;flex-direction:column;justify-content:center;align-items:flex-end;gap:5px;
    width:40px;height:40px;margin-left:auto;
    background:none;border:none;cursor:pointer;padding:8px 0 8px 8px;
  }
  .nav__burger span{display:block;width:22px;height:2px;background:var(--black);transition:transform .28s ease,opacity .2s ease}
  .nav.is-open .nav__burger span:nth-child(1){transform:translateY(7px) rotate(45deg)}
  .nav.is-open .nav__burger span:nth-child(2){opacity:0}
  .nav.is-open .nav__burger span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
  .nav__menu{
    position:fixed;top:64px;left:0;right:0;
    flex-direction:column;align-items:stretch;height:auto;flex:none;
    background:var(--white);border-bottom:1px solid var(--gray-3);
    padding:32px var(--pad) 24px;
    transform:translateY(-120%);opacity:0;visibility:hidden;
    transition:transform .32s cubic-bezier(.4,.1,.2,1),opacity .25s ease,visibility .32s;
    max-height:calc(100vh - 64px);overflow-y:auto;
  }
  .nav.is-open .nav__menu{transform:translateY(0);opacity:1;visibility:visible}
  .nav__group{flex-direction:column;align-items:stretch;height:auto}
  .nav__has-sub{display:block;height:auto;position:relative}
  .nav__sub-toggle{
    display:flex;align-items:center;justify-content:center;
    position:absolute;top:0;right:0;width:52px;height:52px;
    background:none;border:none;font-size:22px;line-height:1;color:var(--gray-2);
    cursor:pointer;transition:transform .25s ease,color .2s ease;
  }
  .nav__has-sub.is-open .nav__sub-toggle{transform:rotate(45deg);color:var(--gray-1)}
  .nav__sub{
    display:block;
    position:static;min-width:0;border:none;padding:0 0 0 32px;margin:0;
    opacity:1;visibility:visible;transform:none;
    max-height:0;overflow:hidden;transition:max-height .3s ease;
  }
  .nav__has-sub.is-open .nav__sub{max-height:160px}
  .nav__sub a{padding:10px 0;opacity:.65;font-size:14px}
  .nav__sub a:first-child{padding-top:4px}
  .nav__contact{
    display:block;padding-top:24px;margin-top:20px;
    border-top:1px solid var(--gray-3);
  }
  .nav__contact .nav__cap{display:block;margin-bottom:12px}
  .nav__contact-link{
    display:block;padding:8px 0;font-size:15px;
    color:var(--black);text-decoration:none;opacity:.85;
  }
  .nav__contact-link:hover{opacity:.55}
  /* mobile menu: group captions + services numbered 01-04, pages in 2 columns */
  .nav__cap{display:block;font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--gray-2);padding:0 0 6px}
  .nav__group--pages{display:grid;grid-template-columns:1fr 1fr;column-gap:0;margin-top:40px}
  .nav__group--pages .nav__cap{grid-column:1 / -1}
  .nav__group--pages .nav__link:nth-child(even){padding-right:20px}
  .nav__group--pages .nav__link:nth-child(odd){padding-left:14px}
  .nav__group--services{counter-reset:svc}
  .nav__group--services .nav__link{counter-increment:svc;display:flex;align-items:baseline;gap:10px}
  .nav__group--services .nav__link::before{content:"0" counter(svc);font-size:11px;color:var(--gray-2);letter-spacing:.04em;flex:0 0 auto}
  .nav__group--pages{margin-left:0}
  .nav__group--contact{margin-left:0}
  .nav__link{
    line-height:1;padding:16px 0;
    border-left:none !important;border-right:none !important;
    border-bottom:1px solid var(--gray-4);font-size:15px;white-space:normal;
  }
  .nav__group--contact .nav__link{border-bottom:none}
  .nav__group--contact .nav__link::after{display:none}

  /* footer collapse */
  .footer__top{flex-direction:column;gap:40px;padding-top:48px}
  .footer__brand{flex:none}
  .footer__cols{flex-wrap:wrap;gap:40px 48px}
  .footer__col{flex:0 0 auto !important}
  .footer__bottom{flex-direction:column;gap:20px;align-items:flex-start}
  .footer__copy{flex:none}
  .footer__legal{flex-wrap:wrap;gap:8px 24px}
  .footer__legal a{flex:0 0 auto !important}
}

/* tablet: keep copyright + legal links on one row */
@media (min-width:768px) and (max-width:1439px){
  .footer__bottom{flex-direction:row;align-items:center;justify-content:space-between;gap:24px}
  .footer__legal{flex-wrap:nowrap;gap:0 24px}
}

/* ===== TIER 1 — below desktop (<=1199) ===== */
@media (max-width:1199px){
  :root{--pad:40px}

  /* hero */
  .hero{padding:120px var(--pad) 56px}
  .hero__title{font-size:96px;margin-inline-start:-.04em}
  .hero__sub{margin-left:0;margin-top:32px;max-width:100%}

  /* featured: stack text over media */
  .featured{flex-direction:column;min-height:0}
  .featured__left{width:100%;padding:32px}
  .featured__media{width:100%;height:280px}
  .featured__metrics{gap:32px;flex-wrap:wrap}

  /* grid -> 2 columns */
  .grid{margin:80px var(--pad) 0;grid-template-columns:repeat(2,1fr);gap:48px 24px}

  /* cta: zero offset, stack links */
  .cta{margin:120px var(--pad) 120px;grid-template-columns:1fr;gap:32px}
  .cta__title{font-size:32px;max-width:100%}
  .cta__rtext{max-width:100%;justify-self:start;padding-left:0}
  .cta__actions{justify-self:start;margin-top:0}
}

/* ===== TIER 3 — mobile (<=767) ===== */
@media (max-width:767px){
  :root{--pad:16px}

  .cta__title{font-size:25px;line-height:1.25}

  .hero{padding:96px var(--pad) 40px}
  .hero__title{font-size:64px}

  .featured__left{padding:24px}
  .featured__title{font-size:26px}
  .featured__media{height:220px}

  /* grid -> 1 column */
  .grid{grid-template-columns:1fr;gap:34px}

  /* filter -> horizontal scroll, no overflow of Tiles/Lines */
  .filters{margin:64px var(--pad) 0}
  .filter{
    flex-wrap:nowrap;overflow-x:auto;gap:20px;
    scrollbar-width:none;-webkit-overflow-scrolling:touch;
  }
  .filter::-webkit-scrollbar{display:none}
  .filter__item,.filter__view-btn{flex:0 0 auto;white-space:nowrap}
  .filter__view{margin-left:8px;padding-left:20px;flex:0 0 auto;border-left:1px solid var(--gray-3)}

  /* ---- FOOTER (same as seo-audit: services 2x2, company|connect) ---- */
  .footer__brand{padding-right:0}
  .footer__copy{flex:none}
  .footer__logo{margin-bottom:20px}
  .footer__desc{margin-top:0}
  .footer__mail{margin-top:12px;display:inline-block}
  .footer__cols{
    display:grid;
    grid-template-columns:minmax(0,175px) 1fr;
    column-gap:24px;row-gap:0;
    align-items:start;
  }
  .footer__col--srv1,.footer__col--srv2{display:contents}
  .footer__col--srv2 .footer__row{margin-left:0}
  .footer__row{flex-direction:column;align-items:flex-start;gap:4px}
  .footer__col--srv2 .footer__head{grid-column:1 / -1;grid-row:1;margin-bottom:40px}
  .footer__col--srv2 > a[href="/seo/"]{grid-column:1;grid-row:2;align-self:end}
  .footer__col--srv2 .footer__subs:first-of-type{grid-column:1;grid-row:3;margin:0 0 32px}
  .footer__col--srv2 > a[href="/seo-audit/"]{grid-column:2;grid-row:2;margin-top:0;align-self:end}
  .footer__col--srv2 .footer__subs:last-of-type{grid-column:2;grid-row:3;margin:0 0 32px}
  .footer__col--srv1 > a[href="/development/"]{grid-column:1;grid-row:4;margin-top:24px}
  .footer__col--srv1 > a[href="/development/"] .footer__name{white-space:nowrap}
  .footer__col--srv1 > a[href="/digital-experience-design/"]{grid-column:2;grid-row:4;margin-top:24px}
  .footer__col--srv1 > a[href="/digital-experience-design/"] .footer__name{white-space:nowrap}
  .footer__row--low{margin-top:0}
  .footer__col--company{grid-column:1;grid-row:5;margin-top:40px}
  .footer__col--connect{grid-column:2;grid-row:5;margin-top:40px}
  .footer__legal{flex-direction:column;gap:8px}
  .footer__legal a{padding-block:8px;flex:0 0 auto !important}
  .footer__link{padding-block:8px;margin-bottom:8px}
  .footer__sub{padding-block:8px;margin-bottom:8px}
  .footer__mail{padding-block:8px}
  .footer__legal a{padding-block:8px}
}


/* ---------- CASE LIST (lines view) ---------- */
.caselist{margin:48px var(--pad) 0}
.caserow{
  border-top:1px solid var(--gray-3);
  padding:24px 0;
  display:flex;align-items:center;gap:28px;
  text-decoration:none;color:var(--black);
}
.caserow:first-child{border-top:none}
.caserow__tag{
  flex:0 0 150px;
  font-size:12px;letter-spacing:.06em;text-transform:uppercase;
  color:var(--gray-1);
}
.caserow__title{
  flex:1;
  font-family:'Instrument Sans',sans-serif;
  font-weight:600;font-size:28px;line-height:1.15;letter-spacing:-.015em;
  transition:opacity .2s;
}
.caserow:hover .caserow__title{opacity:.55}
.caserow__arrow{display:flex;align-items:center;flex:0 0 auto;width:12px;height:12px;transition:transform .25s ease}
.caserow__arrow svg{width:12px;height:12px}
.caserow:hover .caserow__arrow{transform:translate(4px,-4px)}
@media (max-width:767px){
  .caselist{margin:34px var(--pad) 0}
  .caserow{padding:24px 0;gap:16px;flex-wrap:wrap}
  .caserow__tag{flex:0 0 100%;order:-1;margin-bottom:4px}
  .caserow__title{flex:1;font-size:22px}
  .caserow__arrow svg{width:12px;height:12px}
}