/* =========================================================================
   ZXVERA — Services page
   Builds on style.css tokens, buttons, reveals, header and footer.
   Imagery: one photograph per service, framed with the shared .photo-frame component.
   ========================================================================= */

/* ---------- Hero ---------- */
.shero {
  position: relative;
  padding: calc(var(--header-h) + clamp(16px, 2.5vw, 36px)) 0 clamp(28px, 3vw, 40px);
  color: var(--white);
  background: radial-gradient(100% 80% at 78% 40%, #0D2142 0%, var(--navy-900) 55%, var(--navy-950) 100%);
  overflow: hidden;
  isolation: isolate;
}
.shero__bg { position: absolute; inset: 0; z-index: -1; pointer-events: none; }
.shero__glow--a { width: 46vw; height: 46vw; max-width: 700px; max-height: 700px; right: -6vw; top: -6vw; background: radial-gradient(circle, rgba(23, 107, 255, 0.42), transparent 65%); animation: drift-a 24s ease-in-out infinite alternate; }
.shero__glow--b { width: 30vw; height: 30vw; max-width: 460px; max-height: 460px; left: -8vw; bottom: -14vw; background: radial-gradient(circle, rgba(40, 216, 255, 0.18), transparent 65%); animation: drift-b 28s ease-in-out infinite alternate; }

.shero__inner { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr); gap: clamp(32px, 4vw, 64px); align-items: center; }

.shero__badge { margin-bottom: 20px; }
.shero__title { font-family: var(--font-display); font-weight: 700; font-size: clamp(2.5rem, 5vw, 4.7rem); line-height: 1; letter-spacing: -0.04em; margin-bottom: 26px; }
.shero__line { display: block; overflow: hidden; padding-bottom: 0.07em; margin-bottom: -0.04em; }
.shero__line > span { display: inline-block; }
.shero__title em { font-style: normal; background: var(--grad-text); -webkit-background-clip: text; background-clip: text; color: transparent; }
.shero__title i { font-style: normal; color: var(--cyan); }

.shero__lede { max-width: 46ch; font-family: var(--font-display); font-weight: 600; font-size: clamp(1.1rem, 1.55vw, 1.32rem); line-height: 1.42; padding-left: 18px; border-left: 2px solid var(--cyan); }
.shero__support { max-width: 58ch; margin-top: 16px; color: var(--steel); font-size: 0.98rem; }
.shero__actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 30px; }


/* Hero entrance (released by .hero-go from main.js) */
.js:not(.hero-go) .shero__line > span { transform: translateY(110%); }
.js:not(.hero-go) .shero .crumbs,
.js:not(.hero-go) .shero__badge,
.js:not(.hero-go) .shero__lede,
.js:not(.hero-go) .shero__support,
.js:not(.hero-go) .shero__actions { opacity: 0; transform: translateY(20px); }
.shero__line > span { transition: transform 1.1s var(--ease-out); }
.shero__line:nth-child(2) > span { transition-delay: 0.08s; }
.shero__line:nth-child(3) > span { transition-delay: 0.16s; }
.shero .crumbs, .shero__badge, .shero__lede, .shero__support, .shero__actions { transition: opacity 0.9s var(--ease-out), transform 0.9s var(--ease-out); }
.shero__lede { transition-delay: 0.28s; }
.shero__support { transition-delay: 0.36s; }
.shero__actions { transition-delay: 0.44s; }

/* ---------- Overview ---------- */
.overview { padding: var(--section-y) 0 calc(var(--section-y) * 0.8); background: var(--white); color: var(--ink); }
.overview__head { max-width: 980px; }
.overview__statement { font-family: var(--font-display); font-weight: 600; font-size: clamp(1.5rem, 2.9vw, 2.5rem); line-height: 1.22; letter-spacing: -0.025em; }
.overview__statement em { font-style: normal; color: var(--blue); }

.families { display: grid; grid-template-columns: 1.3fr 1fr 1fr; gap: clamp(20px, 3vw, 44px); margin-top: clamp(24px, 2.6vw, 36px); }
.family { padding-top: 20px; border-top: 2px solid var(--ink); }
.family__name { display: flex; align-items: center; gap: 10px; margin-bottom: 14px; font-size: 0.76rem; font-weight: 800; letter-spacing: 0.2em; text-transform: uppercase; color: var(--ink); }
.family__dot { width: 10px; height: 10px; transform: rotate(45deg); border-radius: 2px; background: var(--blue); }
.family__dot--b { background: var(--cyan); }
.family__dot--c { background: var(--navy-700); }
.family a {
  display: flex; align-items: baseline; gap: 14px;
  padding: 10px 0;
  font-weight: 700;
  color: var(--ink);
  border-bottom: 1px solid var(--line-light);
  transition: color 0.25s var(--ease), padding 0.35s var(--ease-out);
}
.family a span { font-family: var(--font-display); font-size: 0.82rem; color: var(--blue); }
.family a:hover, .family a:focus-visible { color: var(--blue); padding-left: 8px; }

/* ---------- Sticky service rail ---------- */
.svc-flow { position: relative; }
.svc-rail {
  position: sticky; top: 70px; z-index: 50;
  background: var(--grad-brand); /* same band as the homepage ribbons */
  box-shadow: 0 20px 50px -20px rgba(23, 107, 255, 0.8);
  transition: top 0.5s var(--ease);
}
.site-header.is-hidden ~ main .svc-rail { top: 0; }
.svc-rail__inner {
  display: flex; align-items: center; gap: 2px;
  max-width: calc(var(--wrap) + var(--gutter) * 2);
  margin: 0 auto;
  padding: 10px var(--gutter);
  overflow-x: auto;
  scrollbar-width: none;
}
.svc-rail__inner::-webkit-scrollbar { display: none; }
.svc-rail a {
  flex-shrink: 0;
  display: inline-flex; align-items: center; gap: 8px;
  padding: 7px 11px;
  font-family: var(--font-display);
  font-size: 0.82rem; font-weight: 700;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.82);
  border-radius: 999px;
  transition: color 0.25s var(--ease), background-color 0.25s var(--ease), box-shadow 0.25s var(--ease);
}
.svc-rail a span { font-size: 0.72rem; color: rgba(255, 255, 255, 0.6); transition: color 0.25s var(--ease); }
.svc-rail__spark { flex-shrink: 0; width: 12px; height: 12px; fill: var(--white); stroke: none; opacity: 0.85; }
.svc-rail a:hover, .svc-rail a:focus-visible { color: var(--white); background: rgba(255, 255, 255, 0.14); }
.svc-rail a[aria-current="true"] { color: var(--blue-deep); background: var(--white); box-shadow: 0 6px 16px -8px rgba(2, 8, 20, 0.5); }
.svc-rail a[aria-current="true"] span { color: var(--blue); }

/* ---------- Service sections: shared anatomy ---------- */
/* overflow-x: clip stops pre-reveal slide-ins from widening the page (and, unlike hidden, keeps sticky children working) */
.overview, .srv, .sapproach { overflow-x: clip; }
.srv {
  position: relative;
  padding: var(--section-y) 0;
  color: var(--ink);
  scroll-margin-top: 120px;
}
.srv--light { background: var(--off); }
.srv--white { background: var(--white); }
.srv--dark, .srv--card {
  color: var(--white);
}
.srv--dark { background: var(--navy-900); }

.srv__grid { display: grid; gap: clamp(32px, 5vw, 72px); align-items: center; }

.srv__meta { display: flex; align-items: center; gap: 14px; margin-bottom: 14px; }
.srv__num {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.6rem, 4.4vw, 3.8rem);
  line-height: 0.9;
  color: transparent;
  -webkit-text-stroke: 1.3px var(--blue);
}
.srv--dark .srv__num, .srv--card .srv__num { -webkit-text-stroke-color: var(--cyan); }
.srv__group { font-size: 0.74rem; font-weight: 800; letter-spacing: 0.2em; text-transform: uppercase; color: var(--blue); }
.srv--dark .srv__group, .srv--card .srv__group { color: var(--cyan); }

.srv__title { font-family: var(--font-display); font-weight: 700; font-size: clamp(2.1rem, 3.9vw, 3.5rem); line-height: 1.04; letter-spacing: -0.03em; margin-bottom: 20px; }
.srv__desc { max-width: 54ch; font-size: clamp(1.02rem, 1.2vw, 1.14rem); line-height: 1.6; color: var(--ink-2); }
.srv--dark .srv__desc, .srv--card .srv__desc { color: var(--steel-2); }
.srv__desc--statement { max-width: 30ch; font-family: var(--font-display); font-weight: 600; font-size: clamp(1.45rem, 2.6vw, 2.3rem); line-height: 1.25; letter-spacing: -0.02em; color: var(--ink); }
.srv__desc--statement em { font-style: normal; color: var(--blue); }

.srv__details { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(20px, 2.4vw, 36px); padding-top: 20px; border-top: 1px solid var(--line-light); }
.srv--dark .srv__details { border-top-color: var(--line-dark); }
.srv__h3 { margin-bottom: 12px; font-size: 0.74rem; font-weight: 800; letter-spacing: 0.2em; text-transform: uppercase; color: var(--ink); }
.srv--dark .srv__h3, .srv--card .srv__h3 { color: var(--white); }
.srv__block p { color: var(--ink-2); font-size: 0.97rem; }
.srv--dark .srv__block p, .srv--card .srv__block p { color: var(--steel); }

.uses li { position: relative; padding: 7px 0 7px 22px; font-size: 0.96rem; line-height: 1.5; color: var(--ink-2); }
.uses li + li { border-top: 1px dashed var(--line-light); }
.uses li::before { content: ""; position: absolute; left: 2px; top: 15px; width: 8px; height: 8px; border-radius: 2px; transform: rotate(45deg); background: var(--grad-brand); }
.srv--dark .uses li, .srv--card .uses li { color: var(--steel-2); }
.srv--dark .uses li + li, .srv--card .uses li + li { border-top-color: var(--line-dark); }

.srv__cta { margin-top: 26px; }

.srv__block .notice { display: flex; gap: 12px; align-items: flex-start; margin-top: 18px; padding: 14px 16px; font-size: 0.88rem; line-height: 1.5; border-radius: var(--radius-sm); color: var(--steel-2); background: rgba(40, 216, 255, 0.07); box-shadow: inset 0 0 0 1px rgba(40, 216, 255, 0.25); }
.srv__block .notice .icon { margin-top: 1px; color: var(--cyan); }
.srv__block .notice--light { color: var(--ink); background: rgba(23, 107, 255, 0.06); box-shadow: inset 3px 0 0 var(--blue), inset 0 0 0 1px rgba(23, 107, 255, 0.18); }
.srv__block .notice--light .icon { color: var(--blue); }

/* ---------- Service-specific compositions ---------- */

/* 01 — Affiliate: foundation. Copy left, relay diagram right, details beneath */
.srv--affiliate .srv__grid { grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr); grid-template-areas: "intro art" "details details"; }
.srv--affiliate .srv__intro { grid-area: intro; }
.srv--affiliate .srv__art { grid-area: art; }
.srv--affiliate .srv__details { grid-area: details; }

/* 02 — Performance: precision. Diagram anchors the left column on dark */
.srv--performance { background: radial-gradient(70% 70% at 15% 50%, #0D2142, var(--navy-900) 65%); }
.srv--performance .srv__grid { grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr); grid-template-areas: "art intro" "art details"; align-items: start; }
.srv--performance .srv__art { grid-area: art; align-self: center; }
.srv--performance .srv__intro { grid-area: intro; }
.srv--performance .srv__details { grid-area: details; grid-template-columns: 1fr; gap: 24px; }
.srv--performance .srv__cta { justify-self: start; margin-top: 0; }

/* 03 — Agency: an editorial statement, then three equal columns */
.srv--agency .srv__grid { grid-template-columns: repeat(3, minmax(0, 1fr)); grid-template-areas: "intro intro intro" "uses how art"; align-items: start; }
.srv--agency .srv__intro { grid-area: intro; display: grid; grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr); gap: 0 clamp(32px, 5vw, 72px); align-items: end; padding-bottom: clamp(24px, 3vw, 40px); border-bottom: 1px solid var(--line-light); }
.srv--agency .srv__meta, .srv--agency .srv__title { grid-column: 1; }
.srv--agency .srv__title { margin-bottom: 0; }
.srv--agency .srv__desc--statement { grid-column: 2; grid-row: 1 / span 2; align-self: end; }
.srv--agency .srv__grid > .srv__block:nth-child(2) { grid-area: uses; }
.srv--agency .srv__grid > .srv__block:nth-child(3) { grid-area: how; }
.srv--agency .srv__art { grid-area: art; }

/* 04 — Publisher: alignment diagram on the right spanning both rows */
.srv--publisher { background: linear-gradient(180deg, var(--navy-850), var(--navy-900)); }
.srv--publisher .srv__grid { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); grid-template-areas: "intro art" "details art"; align-items: start; }
.srv--publisher .srv__intro { grid-area: intro; }
.srv--publisher .srv__art { grid-area: art; align-self: center; }
.srv--publisher .srv__details { grid-area: details; grid-template-columns: 1fr; gap: 24px; }

/* 05 — Fintech: restrained, checklist art on the left */
.srv--fintech .srv__grid { grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr); grid-template-areas: "art intro" "art details"; align-items: start; }
.srv--fintech .srv__art { grid-area: art; align-self: center; }
.srv--fintech .srv__intro { grid-area: intro; }
.srv--fintech .srv__details { grid-area: details; }

/* 06 + 07 — Paid advertising spread */
.srv-pair {
  position: relative;
  padding: var(--section-y) 0;
  color: var(--white);
  background: radial-gradient(60% 50% at 50% 0%, rgba(23, 107, 255, 0.25), transparent 70%), var(--navy-950);
  overflow: hidden;
  isolation: isolate;
}
.srv-pair__bg { position: absolute; inset: 0; z-index: -1; pointer-events: none; }
.srv-pair__eyebrow { margin-bottom: 28px; }
.srv-pair__grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; align-items: stretch; }
.srv--card {
  display: flex; flex-direction: column;
  padding: clamp(24px, 3vw, 40px);
  border-radius: var(--radius-lg);
  background: linear-gradient(165deg, rgba(23, 44, 80, 0.8), rgba(9, 19, 35, 0.95));
  box-shadow: inset 0 0 0 1px var(--line-dark), 0 40px 70px -40px rgba(0, 0, 0, 0.9);
  scroll-margin-top: 140px;
  transition: box-shadow 0.5s var(--ease);
}
.srv--card:hover, .srv--card:focus-within { box-shadow: inset 0 0 0 1px rgba(40, 216, 255, 0.4), 0 50px 80px -40px rgba(23, 107, 255, 0.45); }
.srv--google { background: linear-gradient(195deg, rgba(23, 44, 80, 0.8), rgba(9, 19, 35, 0.95)); }
.srv--card .srv__art { margin: -6px 0 26px; aspect-ratio: 16 / 9; border-radius: var(--radius); }
.srv--card .srv__title { font-size: clamp(1.9rem, 3vw, 2.6rem); margin-bottom: 14px; }
.srv--card .srv__num { font-size: clamp(2.2rem, 3.4vw, 3rem); }
.srv--card .srv__block { margin-top: 22px; padding-top: 20px; border-top: 1px solid var(--line-dark); }
.srv--card .srv__cta { align-self: flex-start; margin-top: auto; }
.srv--card .srv__block:last-of-type { margin-bottom: 28px; }

/* 08 — SEO: centred, structural composition */
.srv--seo .srv__grid { grid-template-columns: 1fr 1fr; grid-template-areas: "intro intro" "art art" "details details"; justify-items: center; }
.srv--seo .srv__intro { grid-area: intro; text-align: center; display: flex; flex-direction: column; align-items: center; }
.srv--seo .srv__desc { max-width: 58ch; }
.srv--seo .srv__art { grid-area: art; width: 100%; max-width: 680px; }
.srv--seo .srv__details { grid-area: details; width: 100%; }

/* 09 — Lead generation: the sequence resolves into one wide connection */
.srv--lead { overflow: hidden; isolation: isolate; background: radial-gradient(70% 60% at 80% 100%, rgba(23, 107, 255, 0.3), transparent 70%), linear-gradient(180deg, var(--navy-900), var(--navy-950)); }
.srv-lead__bg { position: absolute; inset: 0; z-index: -1; pointer-events: none; }
.srv--lead .srv__grid { grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr); grid-template-areas: "intro details" "art art"; align-items: start; }
.srv--lead .srv__intro { grid-area: intro; }
.srv--lead .srv__details { grid-area: details; border-top: 0; padding-top: 0; }
.srv--lead .srv__art { grid-area: art; padding-top: clamp(16px, 3vw, 40px); }

/* ---------- Approach thread ---------- */
.sapproach__grid { display: grid; grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr); gap: clamp(40px, 7vw, 110px); align-items: start; }
.sapproach__head { position: sticky; top: 110px; }
.sapproach__head .h2 { margin-bottom: 22px; }
.sapproach__text { color: var(--ink-2); font-size: 1.05rem; max-width: 48ch; }

.thread { --draw: 0; position: relative; padding-left: 44px; }
.thread::before, .thread::after { content: ""; position: absolute; left: 11px; top: 14px; bottom: 14px; width: 2px; border-radius: 2px; }
.thread::before { background: var(--line-light); }
.thread::after { background: linear-gradient(var(--blue), var(--cyan)); transform: scaleY(var(--draw)); transform-origin: top; }
.thread__item { position: relative; padding: 22px 0; border-bottom: 1px solid var(--line-light); }
.thread__item:first-child { padding-top: 4px; }
.thread__item:last-child { border-bottom: 0; }
.thread__mark { position: absolute; left: -40px; top: 28px; width: 14px; height: 14px; border-radius: 3px; transform: rotate(45deg); background: var(--off); box-shadow: inset 0 0 0 2px var(--line-light); transition: background-color 0.4s var(--ease), box-shadow 0.4s var(--ease), transform 0.5s var(--ease-out); }
.thread__item:first-child .thread__mark { top: 10px; }
.thread__item.is-active .thread__mark { background: var(--blue); box-shadow: 0 0 0 5px rgba(23, 107, 255, 0.15); transform: rotate(45deg) scale(1.1); }
.thread__item h3 { font-family: var(--font-display); font-weight: 700; font-size: clamp(1.1rem, 1.5vw, 1.3rem); line-height: 1.25; letter-spacing: -0.01em; margin-bottom: 6px; color: var(--ink); }
.thread__item p { color: var(--ink-2); }

/* ---------- Final CTA ---------- */
.sclose {
  position: relative;
  padding: var(--section-y-lg) 0;
  color: var(--white);
  background: radial-gradient(55% 80% at 30% 50%, rgba(23, 107, 255, 0.28), transparent 70%), linear-gradient(180deg, var(--navy-850), var(--navy-950));
  overflow: hidden;
  isolation: isolate;
}
.sclose__bg { position: absolute; inset: 0; z-index: -1; pointer-events: none; }
.sclose__grid { display: grid; grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr); gap: clamp(32px, 5vw, 80px); align-items: center; }
.sclose__title { font-family: var(--font-display); font-weight: 700; font-size: clamp(2.2rem, 4.4vw, 3.9rem); line-height: 1.04; letter-spacing: -0.035em; }
.sclose__title em { font-style: normal; background: var(--grad-text); -webkit-background-clip: text; background-clip: text; color: transparent; }
.sclose__title .word em { display: inline-block; }
.sclose__text { margin: 22px 0 32px; max-width: 54ch; color: var(--steel-2); font-size: 1.05rem; }
.sclose__actions { display: flex; flex-wrap: wrap; gap: 14px; }

/* ---------- Motion ---------- */
@media (prefers-reduced-motion: no-preference) {
  .shero.is-offscreen .aurora { animation-play-state: paused; }

  /* Diagram lines draw in once their figure is revealed */
}
/* ---------- Responsive ---------- */
@media (max-width: 1100px) {
  .srv--agency .srv__grid { grid-template-columns: 1fr 1fr; grid-template-areas: "intro intro" "uses how" "art art"; }
  .srv--agency .srv__art { max-width: 520px; justify-self: center; width: 100%; }
}

@media (max-width: 1024px) {
  .shero__inner { grid-template-columns: 1fr; }

  .families { grid-template-columns: 1fr 1fr; }
  .families .family:first-child { grid-column: 1 / -1; }

  .srv--affiliate .srv__grid,
  .srv--performance .srv__grid,
  .srv--publisher .srv__grid,
  .srv--fintech .srv__grid,
  .srv--lead .srv__grid { grid-template-columns: 1fr; grid-template-areas: "intro" "art" "details"; }
  .srv--affiliate .srv__art, .srv--performance .srv__art, .srv--publisher .srv__art, .srv--fintech .srv__art { max-width: 560px; width: 100%; justify-self: center; }
  .srv--lead .srv__details { border-top: 1px solid var(--line-dark); padding-top: 28px; }
  .srv--agency .srv__intro { grid-template-columns: 1fr; }
  .srv--agency .srv__desc--statement { grid-column: 1; grid-row: auto; margin-top: 20px; }

  .srv-pair__grid { grid-template-columns: 1fr; max-width: 680px; margin: 0 auto; }

  .sapproach__grid { grid-template-columns: 1fr; }
  .sapproach__head { position: static; }

  .sclose__grid { grid-template-columns: 1fr; }
}

@media (max-width: 760px) {
  .families { grid-template-columns: 1fr; }
  .srv__details { grid-template-columns: 1fr; }
  .srv--agency .srv__grid { grid-template-columns: 1fr; grid-template-areas: "intro" "uses" "how" "art"; }
  .srv--seo .srv__grid { grid-template-columns: 1fr; grid-template-areas: "intro" "art" "details"; }
  .srv--seo .srv__intro { text-align: left; align-items: flex-start; }
}

@media (max-width: 640px) {
  .shero__title { font-size: min(10.6vw, 3.1rem); }
  .shero__actions .btn { flex: 1 1 100%; }
  .svc-rail { top: 70px; }
  .svc-rail a { padding: 7px 12px; font-size: 0.8rem; }
  .srv { padding: var(--section-y) 0; scroll-margin-top: 120px; }
  .srv__cta { width: 100%; }
  .srv--card .srv__cta { align-self: stretch; }
  /* The wide lead-generation diagram becomes pure linework on phones; its meaning is already in the copy */
  .srv.srv--card { padding: 22px 20px 26px; }
  .sclose__actions .btn { flex: 1 1 100%; }
  .thread { padding-left: 36px; }
  .thread__mark { left: -33px; }
}

/* ---------- Photography ---------- */
.srv__art { aspect-ratio: 4 / 3; width: 100%; }
.srv__art--wide { aspect-ratio: 21 / 8; }
.srv--publisher .srv__art, .srv--performance .srv__art, .srv--fintech .srv__art { aspect-ratio: 4 / 3.4; }
.sclose__photo { aspect-ratio: 4 / 3; }

@media (max-width: 760px) {
  .srv__art--wide { aspect-ratio: 16 / 10; }
}