/* ==========================================================================
   Coltech Advisory — site styles
   Brand colours come from the Coltech logo. Change them here and every page
   updates. See SITE-GUIDE.md for how the site is organised.
   ========================================================================== */

:root {
  /* Brand */
  --ink: #0A1F36;          /* deep navy: dark sections, headings */
  --navy: #0F4C81;         /* logo wordmark navy: primary buttons */
  --blue: #1F5CC4;         /* logo mid blue: accents, links */
  --blue-soft: #5B8EDB;    /* logo light blue: rings, details */

  /* Neutrals */
  --paper: #F6F5F1;        /* warm off-white panels */
  --white: #FFFFFF;
  --text: #1B2735;
  --muted: #5A6677;
  --line: rgba(10, 31, 54, 0.12);
  --line-strong: rgba(10, 31, 54, 0.28);

  /* On dark */
  --on-dark: #C8D3E2;
  --on-dark-muted: #8FA0B7;
  --line-dark: rgba(255, 255, 255, 0.14);

  /* Type */
  --serif: "Newsreader", Georgia, "Times New Roman", serif;
  --sans: "Manrope", "Segoe UI", system-ui, -apple-system, sans-serif;

  /* Layout */
  --max: 1200px;
  --gutter: 48px;
  --header-h: 80px;
  --radius: 4px;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.65;
  color: var(--text);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img, svg { display: block; max-width: 100%; }
a { color: var(--blue); text-decoration: none; }
a:hover { color: var(--navy); }
p { margin: 0 0 1.1em; }
ul { margin: 0; padding: 0; list-style: none; }
:focus-visible { outline: 2px solid var(--blue); outline-offset: 3px; }
[id] { scroll-margin-top: calc(var(--header-h) + 16px); }

.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}
.skip-link {
  position: absolute; left: 16px; top: -60px; z-index: 100;
  background: var(--ink); color: var(--white); padding: 10px 16px; border-radius: var(--radius);
}
.skip-link:focus { top: 12px; color: var(--white); }

/* ---------- Type ---------- */
h1, h2, h3, h4 {
  font-family: var(--serif);
  font-weight: 400;
  color: var(--ink);
  letter-spacing: -0.012em;
  margin: 0 0 0.5em;
}
h1 { font-size: clamp(2.6rem, 5.4vw, 4.5rem); line-height: 1.04; }
h2 { font-size: clamp(2rem, 3.6vw, 3rem); line-height: 1.1; }
h3 { font-size: 1.5rem; line-height: 1.25; }
h4 { font-family: var(--sans); font-size: 0.95rem; font-weight: 700; letter-spacing: 0; }
em.accent { font-style: italic; color: var(--navy); }

.lead { font-size: clamp(1.1rem, 1.6vw, 1.3rem); line-height: 1.6; color: var(--muted); max-width: 40em; }

.eyebrow {
  display: inline-block;
  font-family: var(--sans); font-size: 0.78rem; font-weight: 700;
  letter-spacing: 0.18em; text-transform: uppercase; color: var(--blue);
  margin-bottom: 22px;
}

/* ---------- Layout ---------- */
.container { width: min(var(--max), 100% - var(--gutter)); margin-inline: auto; }
.section { padding: clamp(72px, 10vw, 128px) 0; }
.section--paper { background: var(--paper); }
.section--dark { background: var(--ink); color: var(--on-dark); }
.section--dark h1, .section--dark h2, .section--dark h3 { color: var(--white); }
.section--dark .eyebrow { color: var(--blue-soft); }
.section--dark .lead { color: var(--on-dark); }
.section-head { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: end; margin-bottom: 64px; }
.section-head h2 { margin: 0; }
.section-head p { margin: 0; color: var(--muted); }
.section--dark .section-head p { color: var(--on-dark); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--sans); font-size: 0.95rem; font-weight: 600; letter-spacing: 0.01em;
  padding: 15px 26px; border-radius: var(--radius); border: 1px solid transparent;
  transition: background .2s ease, color .2s ease, border-color .2s ease, transform .2s ease;
  cursor: pointer; white-space: nowrap;
}
.btn .arrow { transition: transform .2s ease; }
.btn:hover .arrow { transform: translateX(4px); }
.btn-primary { background: var(--navy); color: var(--white); }
.btn-primary:hover { background: var(--ink); color: var(--white); }
.btn-ghost { border-color: var(--line-strong); color: var(--ink); background: transparent; }
.btn-ghost:hover { border-color: var(--ink); color: var(--ink); }
.btn-light { background: var(--white); color: var(--ink); }
.btn-light:hover { background: var(--paper); color: var(--ink); }
.btn-outline-light { border-color: rgba(255,255,255,.4); color: var(--white); }
.btn-outline-light:hover { border-color: var(--white); color: var(--white); }
.btn-sm { padding: 11px 20px; font-size: 0.9rem; }
.btn-row { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 36px; }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: saturate(160%) blur(10px);
  -webkit-backdrop-filter: saturate(160%) blur(10px);
  border-bottom: 1px solid var(--line);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; height: var(--header-h); }
.brand img { height: 52px; width: auto; }
.site-nav { display: flex; align-items: center; gap: 36px; }
.site-nav a:not(.btn) {
  font-size: 0.95rem; font-weight: 500; color: var(--ink); position: relative; padding: 6px 0;
}
.site-nav a:not(.btn)::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 1px;
  background: var(--blue); transform: scaleX(0); transform-origin: left; transition: transform .25s ease;
}
.site-nav a:not(.btn):hover::after, .site-nav a[aria-current="page"]::after { transform: scaleX(1); }
.site-nav a:not(.btn)[aria-current="page"] { color: var(--navy); }
.site-nav .btn { margin-left: 8px; }
.site-nav .btn[aria-current="page"] { background: var(--ink); color: var(--white); }

.nav-toggle {
  display: none; width: 44px; height: 44px; border: 0; background: transparent; cursor: pointer;
  position: relative; margin-right: -10px;
}
.nav-toggle span:not(.sr-only) {
  position: absolute; left: 11px; right: 11px; height: 1.5px; background: var(--ink); transition: transform .25s ease, top .25s ease;
}
.nav-toggle span:nth-child(1) { top: 17px; }
.nav-toggle span:nth-child(2) { top: 26px; }
.nav-open .nav-toggle span:nth-child(1) { top: 21px; transform: rotate(45deg); }
.nav-open .nav-toggle span:nth-child(2) { top: 21px; transform: rotate(-45deg); }

/* ---------- Hero ---------- */
.hero { position: relative; overflow: hidden; background: var(--paper); padding: clamp(80px, 11vw, 150px) 0 clamp(72px, 9vw, 120px); }
.hero .container { position: relative; z-index: 1; }
.hero-copy { max-width: 760px; }
.hero h1 { margin-bottom: 28px; }
.hero-rings {
  position: absolute; z-index: 0; right: -180px; top: 50%; transform: translateY(-50%);
  width: min(760px, 70vw); aspect-ratio: 1; pointer-events: none;
}
.page-hero { position: relative; overflow: hidden; background: var(--paper); padding: clamp(72px, 9vw, 120px) 0 clamp(56px, 7vw, 88px); }
.page-hero .container { position: relative; z-index: 1; }
.page-hero h1 { max-width: 16em; font-size: clamp(2.4rem, 4.8vw, 4rem); }
.page-hero .hero-rings { width: min(560px, 60vw); right: -160px; opacity: .8; }

/* ---------- Stats ---------- */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--line); }
.stat { padding: 36px 28px 8px 0; }
.stat + .stat { padding-left: 28px; border-left: 1px solid var(--line); }
.stat-num { font-family: var(--serif); font-size: clamp(2.4rem, 4vw, 3.3rem); line-height: 1; color: var(--navy); margin-bottom: 12px; }
.stat-label { font-size: 0.92rem; color: var(--muted); line-height: 1.5; max-width: 16em; }

/* ---------- Client strip ---------- */
.client-strip { padding: 44px 0; border-bottom: 1px solid var(--line); }
.client-strip-inner { display: flex; align-items: flex-start; gap: 40px; }
.client-strip-label { flex: 0 0 auto; padding-top: 5px;font-size: 0.78rem; font-weight: 700; letter-spacing: .18em; text-transform: uppercase; color: var(--muted); }
.client-names { display: flex; flex-wrap: wrap; gap: 14px 36px; }
.client-names li { font-family: var(--serif); font-size: 1.2rem; color: var(--ink); opacity: .78; white-space: nowrap; }

/* ---------- Service cards ---------- */
.card-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 56px 48px; }
.card { border-top: 1px solid var(--ink); padding-top: 28px; }
.card-num { font-size: 0.8rem; font-weight: 700; letter-spacing: .14em; color: var(--blue); margin-bottom: 18px; display: block; }
.card h3 { margin-bottom: 12px; }
.card p { color: var(--muted); margin: 0; }
.section--dark .card { border-top-color: var(--line-dark); }
.section--dark .card p { color: var(--on-dark); }

/* ---------- Approach steps ---------- */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; counter-reset: step; }
.step { padding: 0 32px 0 0; position: relative; }
.step + .step { padding-left: 32px; border-left: 1px solid var(--line); }
.section--dark .step + .step { border-left-color: var(--line-dark); }
.step-num { font-family: var(--serif); font-size: 3.2rem; line-height: 1; color: var(--blue-soft); margin-bottom: 20px; display: block; }
.step h3 { margin-bottom: 10px; }
.step p { margin: 0; color: var(--muted); font-size: 0.98rem; }
.section--dark .step p { color: var(--on-dark); }

/* ---------- Lifecycle (services page) ---------- */
.lifecycle { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.phase { background: var(--white); padding: 32px 28px 34px; }
.phase-num { font-size: 0.78rem; font-weight: 700; letter-spacing: .14em; color: var(--blue); display: block; margin-bottom: 14px; }
.phase h3 { font-size: 1.35rem; margin-bottom: 14px; }

/* ---------- Tick lists ---------- */
.ticks li { position: relative; padding-left: 22px; margin-bottom: 10px; color: var(--muted); font-size: 0.97rem; line-height: 1.55; }
.ticks li::before {
  content: ""; position: absolute; left: 2px; top: 0.58em; width: 6px; height: 6px; border-radius: 50%; background: var(--blue);
}
.section--dark .ticks li { color: var(--on-dark); }
.section--dark .ticks li::before { background: var(--blue-soft); }

/* ---------- Split / feature rows ---------- */
.split { display: grid; grid-template-columns: 5fr 7fr; gap: clamp(40px, 7vw, 110px); align-items: start; }
.split--even { grid-template-columns: 1fr 1fr; }

.service-row { display: grid; grid-template-columns: 5fr 7fr; gap: clamp(32px, 6vw, 96px); padding: 56px 0; border-top: 1px solid var(--line); }
.service-row:last-child { border-bottom: 1px solid var(--line); }
.service-row h3 { font-size: clamp(1.6rem, 2.4vw, 2rem); margin: 0; }
.service-row .card-num { margin-bottom: 14px; }
.service-row p { color: var(--muted); }

/* ---------- Capability cards ---------- */
.cap-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.cap { background: var(--white); border: 1px solid var(--line); padding: 32px 28px; border-radius: var(--radius); }
.cap h3 { font-size: 1.35rem; margin-bottom: 16px; }

/* ---------- Quote ---------- */
.quote-feature { max-width: 980px; }
.quote-feature blockquote {
  margin: 0; font-family: var(--serif); font-weight: 300; font-size: clamp(1.6rem, 3vw, 2.5rem);
  line-height: 1.3; color: var(--white); letter-spacing: -0.01em;
}
.quote-mark { font-family: var(--serif); font-size: 5rem; line-height: .6; color: var(--blue-soft); display: block; margin-bottom: 18px; }
.quote-cite { margin-top: 36px; display: flex; flex-wrap: wrap; align-items: baseline; gap: 6px 16px; font-size: 0.95rem; }
.quote-cite strong { color: var(--white); font-weight: 600; }
.quote-cite span { color: var(--on-dark-muted); }

.testimonials { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.testimonial {
  background: var(--white); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 40px 40px 36px; display: flex; flex-direction: column;
}
.testimonial blockquote { margin: 0 0 28px; font-family: var(--serif); font-size: 1.3rem; line-height: 1.45; color: var(--ink); flex: 1; }
.testimonial .quote-mark { font-size: 3.6rem; margin-bottom: 8px; color: var(--blue); }
.testimonial figcaption { border-top: 1px solid var(--line); padding-top: 18px; font-size: 0.92rem; color: var(--muted); }
.testimonial figcaption strong { display: block; color: var(--ink); font-weight: 600; }

/* ---------- Founder ---------- */
.founder { display: grid; grid-template-columns: 7fr 5fr; gap: clamp(40px, 7vw, 110px); align-items: center; }
.credentials { background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); padding: 40px; position: relative; overflow: hidden; }
.credentials h3 { font-size: 1.25rem; margin-bottom: 4px; }
.credentials .role { font-size: 0.9rem; color: var(--muted); margin-bottom: 26px; display: block; }
.credentials .ticks li { color: var(--text); }
.credentials .mark { position: absolute; right: -40px; bottom: -40px; width: 180px; opacity: .08; }

/* ---------- CTA band ---------- */
.cta-band { position: relative; overflow: hidden; background: var(--navy); color: var(--on-dark); padding: clamp(72px, 9vw, 112px) 0; }
.cta-band::after {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(circle at 85% 50%, rgba(91,142,219,.35), transparent 55%);
}
.cta-band .container { position: relative; z-index: 1; display: flex; align-items: center; justify-content: space-between; gap: 48px; }
.cta-band h2 { color: var(--white); max-width: 18em; margin-bottom: 12px; }
.cta-band p { margin: 0; color: #D6E1F1; max-width: 36em; }
.cta-band .btn-row { margin-top: 0; flex-shrink: 0; }

/* ---------- Case studies ---------- */
.case { display: grid; grid-template-columns: 4fr 8fr; gap: clamp(32px, 6vw, 96px); padding: 64px 0; border-top: 1px solid var(--line); }
.case:last-of-type { border-bottom: 1px solid var(--line); }
.case-meta h2 { font-size: clamp(1.9rem, 3vw, 2.5rem); margin-bottom: 10px; }
.case-sector { font-size: 0.78rem; font-weight: 700; letter-spacing: .16em; text-transform: uppercase; color: var(--blue); display: block; margin-bottom: 28px; }
.case-tag {
  display: inline-block; font-size: 0.75rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase;
  color: var(--navy); background: rgba(31,92,196,.08); padding: 6px 10px; border-radius: 3px; margin-bottom: 18px;
}
.case-facts { border-top: 1px solid var(--line); }
.case-facts div { display: flex; justify-content: space-between; gap: 16px; padding: 14px 0; border-bottom: 1px solid var(--line); font-size: 0.93rem; }
.case-facts dt { color: var(--muted); }
.case-facts dd { margin: 0; color: var(--ink); font-weight: 600; text-align: right; }
.case-body h3 { font-size: 1.6rem; margin-bottom: 16px; }
.case-body > p { color: var(--muted); font-size: 1.05rem; }
.case-body h4 { margin: 32px 0 14px; color: var(--ink); text-transform: uppercase; letter-spacing: .12em; font-size: 0.78rem; }

/* ---------- Clients grid ---------- */
.client-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.client-tile {
  background: var(--white); padding: 44px 32px 40px; min-height: 210px;
  display: flex; flex-direction: column; justify-content: space-between; gap: 24px;
  transition: background .25s ease;
}
.client-tile:hover { background: var(--paper); }
.client-tile .name { font-family: var(--serif); font-size: 1.65rem; line-height: 1.15; color: var(--ink); }
.client-tile .sector { font-size: 0.76rem; font-weight: 700; letter-spacing: .14em; text-transform: uppercase; color: var(--muted); }
.client-tile .sub { display: block; font-family: var(--sans); font-size: 0.85rem; color: var(--muted); margin-top: 8px; }

.sector-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: 48px; }

/* ---------- Contact ---------- */
.contact-grid { display: grid; grid-template-columns: 7fr 5fr; gap: clamp(40px, 7vw, 110px); align-items: start; }
.contact-list { border-top: 1px solid var(--line); }
.contact-item { display: grid; grid-template-columns: 140px 1fr; gap: 24px; padding: 28px 0; border-bottom: 1px solid var(--line); align-items: baseline; }
.contact-item .label { font-size: 0.78rem; font-weight: 700; letter-spacing: .16em; text-transform: uppercase; color: var(--muted); }
.contact-item .value { font-family: var(--serif); font-size: clamp(1.35rem, 2.4vw, 1.9rem); color: var(--ink); line-height: 1.3; word-break: break-word; }
.contact-item a.value:hover { color: var(--blue); }
.contact-item .note { display: block; font-family: var(--sans); font-size: 0.92rem; color: var(--muted); margin-top: 6px; }
.expect { background: var(--paper); border-radius: var(--radius); padding: 44px 40px; }
.expect h3 { margin-bottom: 26px; }
.expect ol { list-style: none; margin: 0; padding: 0; counter-reset: ex; }
.expect li { counter-increment: ex; position: relative; padding: 0 0 26px 56px; }
.expect li:last-child { padding-bottom: 0; }
.expect li::before {
  content: counter(ex, decimal-leading-zero); position: absolute; left: 0; top: 0;
  font-family: var(--serif); font-size: 1.6rem; line-height: 1; color: var(--blue);
}
.expect li strong { display: block; color: var(--ink); margin-bottom: 4px; font-weight: 600; }
.expect li span { color: var(--muted); font-size: 0.97rem; }

/* ---------- Core offerings (home + services) ---------- */
.offer-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.offer {
  background: var(--paper); border-radius: var(--radius); padding: clamp(36px, 4vw, 56px) clamp(28px, 3.6vw, 52px);
  display: flex; flex-direction: column; position: relative; overflow: hidden;
}
.offer::before { content: ""; position: absolute; left: 0; top: 0; right: 0; height: 3px; background: var(--navy); }
.offer:nth-child(2)::before { background: var(--blue); }
.offer .card-num { margin-bottom: 22px; }
.offer h3 { font-size: clamp(1.8rem, 2.6vw, 2.35rem); line-height: 1.12; margin-bottom: 16px; }
.offer > p { color: var(--muted); font-size: 1.04rem; margin-bottom: 28px; }
.offer .ticks { margin-bottom: 8px; }
.offer .ticks li { color: var(--text); }
.link-arrow {
  display: inline-flex; align-items: center; gap: 10px; margin-top: auto; padding-top: 28px;
  font-weight: 600; font-size: 0.95rem; color: var(--navy);
}
.link-arrow .arrow { transition: transform .2s ease; }
.link-arrow:hover .arrow { transform: translateX(4px); }

.platforms { margin-top: 56px; padding-top: 32px; border-top: 1px solid var(--line); display: flex; align-items: flex-start; gap: 40px; }
.platforms-label { flex: 0 0 auto; padding-top: 9px; font-size: 0.78rem; font-weight: 700; letter-spacing: .18em; text-transform: uppercase; color: var(--muted); }
.platform-list { display: flex; flex-wrap: wrap; gap: 10px; }
.platform-list li { border: 1px solid var(--line-strong); border-radius: 999px; padding: 8px 18px; font-size: 0.92rem; font-weight: 500; color: var(--ink); background: var(--white); }

/* ---------- Service blocks (services page) ---------- */
.service-intro { display: grid; grid-template-columns: 5fr 7fr; gap: clamp(32px, 6vw, 96px); margin-bottom: 64px; }
.service-intro h2 { margin: 0; }
.service-intro .card-num { margin-bottom: 18px; }
.service-intro p { color: var(--muted); font-size: 1.08rem; }
.mini-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.mini { background: var(--white); padding: 32px 28px; }
.mini h3 { font-size: 1.3rem; margin-bottom: 10px; }
.mini p { margin: 0; color: var(--muted); font-size: 0.96rem; }
.section--paper .mini { background: var(--white); }

.assess-scale { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-top: 56px; }
.assess-item { border: 1px solid var(--line); border-radius: var(--radius); padding: 24px 24px 22px; background: var(--white); }
.assess-item strong { display: flex; align-items: center; gap: 10px; font-family: var(--serif); font-weight: 400; font-size: 1.25rem; color: var(--ink); margin-bottom: 6px; }
.assess-item strong::before { content: ""; width: 10px; height: 10px; border-radius: 50%; background: var(--dot, var(--blue)); flex: 0 0 auto; }
.assess-item span { font-size: 0.92rem; color: var(--muted); line-height: 1.5; display: block; }
.assess-item:nth-child(1) { --dot: #9DB8E6; }
.assess-item:nth-child(2) { --dot: var(--blue-soft); }
.assess-item:nth-child(3) { --dot: var(--blue); }
.assess-item:nth-child(4) { --dot: var(--ink); }

.num-list { list-style: none; margin: 0; padding: 0; counter-reset: nl; }
.num-list li { counter-increment: nl; position: relative; padding: 0 0 22px 52px; }
.num-list li::before {
  content: counter(nl, decimal-leading-zero); position: absolute; left: 0; top: 2px;
  font-family: var(--serif); font-size: 1.35rem; line-height: 1; color: var(--blue);
}
.num-list li strong { display: block; color: var(--ink); font-weight: 600; margin-bottom: 2px; }
.num-list li span { color: var(--muted); font-size: 0.96rem; }
.section--dark .num-list li strong { color: var(--white); }
.section--dark .num-list li span { color: var(--on-dark); }
.section--dark .num-list li::before { color: var(--blue-soft); }
.method-col h3 { font-size: 1.6rem; margin-bottom: 10px; }
.method-col > p { color: var(--muted); margin-bottom: 28px; }

/* ---------- Team ---------- */
.team-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.person { background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); padding: 44px 40px 40px; }
.person h3 { font-size: 1.8rem; margin-bottom: 4px; }
.person .role { display: block; font-size: 0.78rem; font-weight: 700; letter-spacing: .16em; text-transform: uppercase; color: var(--blue); margin-bottom: 22px; }
.person > p { color: var(--muted); }
.person h4 { margin: 26px 0 12px; color: var(--ink); text-transform: uppercase; letter-spacing: .12em; font-size: 0.78rem; }

/* ---------- Case types ---------- */
.case-types { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 20px; }
.type-tag {
  font-size: 0.72rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase;
  color: var(--ink); border: 1px solid var(--line-strong); padding: 5px 10px; border-radius: 3px;
}
.type-tag--live { color: var(--navy); background: rgba(31,92,196,.08); border-color: transparent; }

.testimonials--3 { grid-template-columns: repeat(3, 1fr); }

/* ---------- Icons ---------- */
.icon-badge {
  display: grid; place-items: center; width: 56px; height: 56px; border-radius: 50%;
  background: rgba(31,92,196,.08); color: var(--blue); margin-bottom: 20px; flex: 0 0 auto;
}
.icon-badge svg { width: 26px; height: 26px; }
.section--dark .icon-badge, .whs-band .icon-badge { background: rgba(91,142,219,.16); color: #9DB8E6; }
.step .icon-badge { margin-bottom: 18px; }
.step-label { display: block; font-size: 0.75rem; font-weight: 700; letter-spacing: .14em; color: var(--blue); margin-bottom: 6px; }

/* ---------- WHS specialism band ---------- */
.whs-band { background: var(--ink); color: var(--on-dark); padding: 30px 0; }
.whs-band .container { display: flex; align-items: center; gap: 24px; }
.whs-band .icon-badge { margin: 0; }
.whs-band-text { flex: 1; }
.whs-band-text strong { display: block; font-size: 0.78rem; font-weight: 700; letter-spacing: .18em; text-transform: uppercase; color: #9DB8E6; margin-bottom: 4px; }
.whs-band-text span { font-family: var(--serif); font-size: clamp(1.15rem, 1.8vw, 1.45rem); color: var(--white); line-height: 1.35; }
.whs-band .link-arrow { margin: 0; padding: 0; color: var(--white); white-space: nowrap; }
.whs-band .link-arrow:hover { color: #9DB8E6; }

/* ---------- Implementation chevron diagram ---------- */
.chev { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(8, 1fr); grid-template-rows: auto 104px auto; }
.chev li { display: contents; }
.chev-label {
  grid-column: var(--i); grid-row: 1; align-self: end; justify-self: center;
  width: 190%; max-width: 250px; text-align: center; padding-bottom: 30px; position: relative;
}
.chev li:nth-child(even) .chev-label { grid-row: 3; align-self: start; padding: 30px 0 0; }
.chev-label::after {
  content: ""; position: absolute; left: 50%; bottom: 8px; width: 7px; height: 7px; margin-left: -3.5px;
  border-radius: 50%; background: var(--blue);
}
.chev li:nth-child(even) .chev-label::after { bottom: auto; top: 8px; }
/* keep the first and last labels inside the page edges */
.chev li:first-child .chev-label { justify-self: start; width: 150%; text-align: left; }
.chev li:first-child .chev-label::after { left: 33.33%; }
.chev li:last-child .chev-label { justify-self: end; width: 150%; text-align: right; }
.chev li:last-child .chev-label::after { left: 66.67%; }
.chev-label strong { display: block; font-family: var(--serif); font-weight: 500; font-size: 1.22rem; color: var(--navy); margin-bottom: 6px; }
.chev-label span { display: block; font-size: 0.84rem; color: var(--muted); line-height: 1.45; }
.chev-bar {
  grid-column: var(--i); grid-row: 2; justify-self: start; width: calc(100% + 26px); height: 100%;
  background: var(--c); display: flex; align-items: center; justify-content: center;
  clip-path: polygon(0 0, calc(100% - 26px) 0, 100% 50%, calc(100% - 26px) 100%, 0 100%, 26px 50%);
}
.chev li:not(:first-child) .chev-bar { margin-left: 3px; }
.chev li:last-child .chev-bar { width: calc(100% - 3px); }
.chev-num {
  width: 42px; height: 42px; border-radius: 50%; background: var(--white); color: var(--ink);
  display: grid; place-items: center; font-weight: 700; font-size: 1.02rem;
}

/* ---------- Project types (experience) ---------- */
.ptype-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.ptype { background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); padding: 36px 32px 32px; }
.ptype h3 { font-size: 1.45rem; margin-bottom: 10px; }
.ptype > p { color: var(--muted); font-size: 0.98rem; margin-bottom: 18px; }

/* ---------- Client logo banner ---------- */
.clients-band { padding: clamp(64px, 8vw, 96px) 0; background: var(--white); border-top: 1px solid var(--line); }
.clients-band .section-title { text-align: center; margin-bottom: 44px; }
.clients-band .section-title h2 { font-size: clamp(1.7rem, 2.8vw, 2.3rem); margin-bottom: 8px; }
.clients-band .section-title p { color: var(--muted); margin: 0; }
.marquee {
  overflow: hidden;
  -webkit-mask-image: linear-gradient(to right, transparent, #000 10%, #000 90%, transparent);
          mask-image: linear-gradient(to right, transparent, #000 10%, #000 90%, transparent);
}
.marquee-track { display: flex; width: max-content; animation: marquee 45s linear infinite; }
.marquee:hover .marquee-track { animation-play-state: paused; }
.marquee-group { display: flex; align-items: center; gap: 80px; padding-right: 80px; flex-shrink: 0; }
.logo-item { height: 72px; display: flex; align-items: center; }
.logo-item img { width: var(--w, 150px); height: auto; }
.logo-name { display: none; font-family: var(--serif); font-size: 1.4rem; color: var(--ink); opacity: .78; white-space: nowrap; }
.logo-item.no-logo img { display: none; }
.logo-item.no-logo .logo-name { display: inline; }
@keyframes marquee { from { transform: translateX(0); } to { transform: translateX(-50%); } }

/* ---------- Contact ---------- */
.contact-details { margin: 0; border-top: 1px solid var(--line); }
.contact-details > div { display: grid; grid-template-columns: 130px 1fr; gap: 24px; align-items: baseline; padding: 22px 0; border-bottom: 1px solid var(--line); }
.contact-details dt { font-size: 0.78rem; font-weight: 700; letter-spacing: .16em; text-transform: uppercase; color: var(--muted); }
.contact-details dd { margin: 0; font-family: var(--serif); font-size: 1.35rem; line-height: 1.35; color: var(--ink); overflow-wrap: anywhere; }
.contact-details dd a { color: var(--navy); }
.contact-details dd a:hover { color: var(--blue); }

/* ---------- Testimonial carousel ---------- */
.quote-carousel { display: grid; }
/* the outgoing quote fades out first, then the next one fades in, so text never overlaps */
.quote-slide { grid-area: 1 / 1; margin: 0; opacity: 0; visibility: hidden; transition: opacity .45s ease, visibility 0s linear .45s; }
.quote-slide.is-active { opacity: 1; visibility: visible; transition: opacity .6s ease .45s, visibility 0s linear .45s; }
.quote-dots { display: none; grid-area: 2 / 1; gap: 10px; margin-top: 44px; }
.js .quote-dots { display: flex; }
.quote-dots button {
  width: 10px; height: 10px; padding: 0; border: 0; border-radius: 5px; cursor: pointer;
  background: rgba(255,255,255,.28); transition: background .3s ease, width .3s ease;
}
.quote-dots button:hover { background: rgba(255,255,255,.5); }
.quote-dots button[aria-current="true"] { width: 28px; background: var(--blue-soft); }

/* ---------- Offer key points (home) ---------- */
.offer-points { display: flex; flex-wrap: wrap; gap: 8px; }
.offer-points li { background: var(--white); border: 1px solid var(--line); border-radius: 999px; padding: 6px 14px; font-size: 0.88rem; font-weight: 500; color: var(--ink); }

/* ---------- Footer ---------- */
.site-footer { background: var(--ink); color: var(--on-dark-muted); padding: 88px 0 36px; font-size: 0.95rem; }
.footer-top { display: grid; grid-template-columns: 5fr 2fr 2fr 3fr; gap: 48px; padding-bottom: 64px; border-bottom: 1px solid var(--line-dark); }
.footer-brand img { height: 44px; width: auto; margin-bottom: 24px; }
.footer-brand p { max-width: 24em; color: var(--on-dark-muted); }
.footer-col h4 { color: var(--white); font-size: 0.78rem; letter-spacing: .16em; text-transform: uppercase; margin-bottom: 20px; }
.footer-col li { margin-bottom: 10px; }
.footer-col a { color: var(--on-dark); overflow-wrap: anywhere; }
.footer-col a:hover { color: var(--white); }
.footer-bottom { display: flex; justify-content: space-between; gap: 24px; flex-wrap: wrap; padding-top: 28px; font-size: 0.85rem; }

/* ---------- Reveal on scroll ---------- */
.js .reveal { opacity: 0; transform: translateY(18px); transition: opacity .8s ease, transform .8s ease; }
.js .reveal.is-visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .quote-slide { transition: none; }
  html { scroll-behavior: auto; }
  .js .reveal { opacity: 1; transform: none; transition: none; }
  .marquee { -webkit-mask-image: none; mask-image: none; }
  .marquee-track { animation: none; width: auto; justify-content: center; }
  .marquee-group { flex-wrap: wrap; justify-content: center; gap: 24px 56px; padding: 0; }
  .marquee-group[aria-hidden="true"] { display: none; }
}

/* ---------- Responsive ---------- */
@media (max-width: 1080px) {
  .card-grid { grid-template-columns: repeat(2, 1fr); }
  .lifecycle { grid-template-columns: repeat(2, 1fr); }
  .cap-grid { grid-template-columns: repeat(2, 1fr); }
  .client-grid { grid-template-columns: repeat(3, 1fr); }
  .footer-top { grid-template-columns: 1fr 1fr; }
  .steps { grid-template-columns: repeat(2, 1fr); gap: 48px 0; }
  .step:nth-child(3) { padding-left: 0; border-left: 0; }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .stat:nth-child(3) { padding-left: 0; border-left: 0; }
  .cta-band .container { flex-direction: column; align-items: flex-start; }
  .mini-grid { grid-template-columns: repeat(2, 1fr); }
  .assess-scale { grid-template-columns: repeat(2, 1fr); }
  .testimonials--3 { grid-template-columns: 1fr; }
}

@media (max-width: 1080px) {
  .ptype-grid { grid-template-columns: repeat(2, 1fr); }
  .chev-label strong { font-size: 1.05rem; }
  .chev-label span { font-size: 0.78rem; }
}

@media (max-width: 860px) {
  :root { --header-h: 68px; }
  /* chevron diagram becomes a vertical list */
  .chev { display: block; border-top: 1px solid var(--line); }
  .chev li { display: grid; grid-template-columns: 44px 1fr; gap: 18px; align-items: start; padding: 18px 0; border-bottom: 1px solid var(--line); }
  .chev-bar, .chev li:not(:first-child) .chev-bar, .chev li:last-child .chev-bar {
    grid-column: 1; grid-row: 1; width: 44px; height: 44px; margin: 0; clip-path: none; border-radius: 50%;
  }
  .chev-num { width: 30px; height: 30px; font-size: 0.9rem; }
  .chev-label, .chev li:nth-child(even) .chev-label {
    grid-column: 2; grid-row: 1; width: auto; max-width: none; text-align: left; padding: 0; justify-self: stretch;
  }
  .chev-label::after { display: none; }
  .chev-label strong { font-size: 1.2rem; margin-bottom: 4px; }
  .chev-label span { font-size: 0.92rem; }
  .whs-band .container { flex-wrap: wrap; }
  .whs-band-text { flex: 1 1 60%; }
  .brand img { height: 42px; }
  .nav-toggle { display: block; }
  .site-nav {
    position: fixed; inset: var(--header-h) 0 auto 0; background: var(--white);
    flex-direction: column; align-items: stretch; gap: 0; padding: 8px max(16px, calc((100% - var(--max)) / 2)) 28px;
    border-bottom: 1px solid var(--line); box-shadow: 0 24px 40px rgba(10,31,54,.08);
    transform: translateY(-8px); opacity: 0; visibility: hidden; transition: opacity .2s ease, transform .2s ease, visibility .2s;
  }
  .nav-open .site-nav { opacity: 1; transform: none; visibility: visible; }
  .site-nav a:not(.btn) { padding: 16px 0; border-bottom: 1px solid var(--line); font-size: 1.05rem; }
  .site-nav a:not(.btn)::after { display: none; }
  .site-nav .btn { margin: 20px 0 0; justify-content: center; }

  .section-head, .split, .split--even, .service-row, .founder, .case, .contact-grid,
  .offer-grid, .service-intro, .team-grid { grid-template-columns: 1fr; }
  .service-intro { gap: 20px; margin-bottom: 48px; }
  .platforms { flex-direction: column; gap: 16px; }
  .platforms-label { padding-top: 0; }
  .section-head { gap: 20px; margin-bottom: 48px; }
  .testimonials { grid-template-columns: 1fr; }
  .sector-list { grid-template-columns: 1fr; gap: 32px; }
  .client-strip-inner { flex-direction: column; align-items: flex-start; gap: 18px; }
  .hero-rings { right: -260px; width: 620px; opacity: .55; }
  .page-hero .hero-rings { right: -240px; width: 460px; opacity: .5; }
}

@media (max-width: 600px) {
  :root { --gutter: 32px; }
  body { font-size: 16px; }
  .card-grid, .lifecycle, .cap-grid, .client-grid, .steps, .footer-top, .mini-grid, .ptype-grid { grid-template-columns: 1fr; }
  .whs-band .icon-badge { display: none; }
  .marquee-group { gap: 56px; padding-right: 56px; }
  .logo-item img { width: calc(var(--w, 150px) * .8); }
  .ptype { padding: 30px 24px 26px; }
  .person { padding: 32px 26px; }
  .platform-list li { font-size: 0.88rem; padding: 7px 14px; }
  .step, .step + .step { padding: 0; border-left: 0; }
  .stats { grid-template-columns: 1fr 1fr; }
  .stat { padding: 28px 16px 4px 0; }
  .stat + .stat { padding-left: 16px; }
  .stat:nth-child(3) { padding-left: 0; }
  .client-tile { min-height: 0; padding: 32px 24px; }
  .contact-item { grid-template-columns: 1fr; gap: 6px; }
  .contact-details > div { grid-template-columns: 1fr; gap: 6px; }
  .contact-details dd { font-size: 1.2rem; }
  .testimonial { padding: 32px 26px 28px; }
  .credentials, .expect { padding: 32px 26px; }
  .btn-row .btn { flex: 1 1 100%; justify-content: center; }
  .site-footer { padding-top: 64px; }
}