:root {
  /* TES-aligned dark palette */
  --ink: #0B0B0B;
  --ink-2: #1A1A1A;
  --ink-3: #1F1F1F;
  --ink-soft: rgba(255,255,255,0.06);
  --line: rgba(255,255,255,0.08);
  --line-soft: rgba(255,255,255,0.05);
  --paper: #F9F8F4;
  --ivory: #F2EFE5;
  --white: #FFFFFF;
  --muted: #A8A8A8;
  --muted-2: #6E6E6E;

  /* Cyan + signal red — TES accents */
  --cyan: #00BFDF;
  --cyan-2: #1FCFEF;
  --cyan-soft: rgba(0,191,223,0.12);
  --signal: #E10600;

  --font-serif: "Source Serif 4", "Source Serif Pro", Georgia, "Times New Roman", serif;
  --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;

  --step--2: clamp(0.69rem, 0.65rem + 0.2vw, 0.78rem);
  --step--1: clamp(0.83rem, 0.78rem + 0.25vw, 0.94rem);
  --step-0:  clamp(1.00rem, 0.94rem + 0.3vw,  1.13rem);
  --step-1:  clamp(1.20rem, 1.12rem + 0.4vw,  1.40rem);
  --step-2:  clamp(1.44rem, 1.34rem + 0.5vw,  1.69rem);
  --step-3:  clamp(1.73rem, 1.59rem + 0.7vw,  2.07rem);
  --step-4:  clamp(2.07rem, 1.89rem + 0.9vw,  2.55rem);
  --step-5:  clamp(2.49rem, 2.24rem + 1.25vw, 3.16rem);
  --step-6:  clamp(2.99rem, 2.66rem + 1.65vw, 3.92rem);
  --step-7:  clamp(3.58rem, 3.15rem + 2.15vw, 4.87rem);

  --container: 1200px;
  --gutter: clamp(1.25rem, 3vw, 2.5rem);
  --radius: 4px;
  --radius-lg: 8px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; background: var(--ink); }

body {
  margin: 0;
  background: var(--ink);
  color: var(--white);
  font-family: var(--font-sans);
  font-size: var(--step-0);
  line-height: 1.6;
  font-feature-settings: "ss01", "cv11", "kern";
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

img, svg, video { max-width: 100%; height: auto; display: block; }

a {
  color: var(--cyan);
  text-decoration: none;
  transition: color .15s ease;
}
a:hover { color: var(--cyan-2); }
a:focus-visible { outline: 2px solid var(--cyan); outline-offset: 3px; border-radius: 1px; }

h1, h2, h3, h4, h5 {
  font-family: var(--font-sans);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.025em;
  margin: 0 0 0.5em;
  color: var(--white);
}
h1 { font-size: var(--step-7); letter-spacing: -0.04em; font-weight: 800; }
h2 { font-size: var(--step-5); letter-spacing: -0.03em; font-weight: 700; }
h3 { font-size: var(--step-2); }
h4 { font-size: var(--step-1); }

p { margin: 0 0 1em; max-width: 70ch; color: rgba(255,255,255,0.86); }
strong { font-weight: 600; color: var(--white); }
em { font-style: italic; }

ul, ol { margin: 0 0 1em; padding-left: 1.25em; color: rgba(255,255,255,0.86); }
li { margin-bottom: 0.4em; }
li::marker { color: var(--cyan); }

hr {
  border: 0;
  border-top: 1px solid var(--line);
  margin: 3rem 0;
}

code, pre { font-family: var(--font-mono); font-size: 0.9em; }
blockquote {
  border-left: 3px solid var(--cyan);
  padding-left: 1.5rem;
  margin: 1.5rem 0;
  font-family: var(--font-serif);
  font-size: var(--step-2);
  line-height: 1.35;
  color: var(--white);
  font-style: italic;
}

/* ===== Layout ===== */
.container { max-width: var(--container); margin: 0 auto; padding-inline: var(--gutter); position: relative; }
.container-narrow { max-width: 760px; margin: 0 auto; padding-inline: var(--gutter); }
.section { padding-block: clamp(3rem, 6vw, 5.5rem); position: relative; }
.section-tight { padding-block: clamp(2rem, 4vw, 3rem); }
.section-cyan { background: var(--cyan); color: var(--ink); }
.section-cyan h1, .section-cyan h2, .section-cyan h3, .section-cyan h4 { color: var(--ink); }
.section-cyan a { color: var(--ink); border-bottom: 1px solid var(--ink); }
.section-light { background: var(--paper); color: var(--ink); }
.section-light h1, .section-light h2, .section-light h3, .section-light h4 { color: var(--ink); }
.section-light p, .section-light li { color: rgba(0,0,0,0.78); }
.section-light a { color: var(--ink); border-bottom: 1px solid var(--cyan); }
.section-light a:hover { color: var(--cyan); }
.section-ink-2 { background: var(--ink-2); }

/* ===== Banner ===== */
.banner {
  background: var(--cyan);
  color: var(--ink);
  font-size: var(--step--2);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 0.5rem 0;
  text-align: center;
  font-weight: 600;
}
.banner a { color: var(--ink); border-bottom: 1px solid var(--ink); }
.banner a:hover { color: var(--ink); background: rgba(0,0,0,0.06); }

/* ===== Header ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(11,11,11,0.92);
  backdrop-filter: saturate(140%) blur(10px);
  border-bottom: 1px solid var(--line);
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  padding-block: 1rem;
}
.logo {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-sans);
  font-size: var(--step-1);
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--white);
  text-decoration: none;
}
.logo .logo-mark {
  display: inline-block;
  width: 28px; height: 28px;
  background: var(--cyan);
  position: relative;
  border-radius: 2px;
  overflow: hidden;
}
.logo .logo-mark::before {
  content: ""; position: absolute;
  inset: 4px;
  border: 2px solid var(--ink);
  border-radius: 1px;
}
.nav-primary {
  display: flex;
  align-items: center;
  gap: 1.75rem;
  font-size: var(--step--1);
  font-weight: 500;
  list-style: none;
  margin: 0;
  padding: 0;
}
.nav-primary > li { position: relative; }
.nav-primary > li > a, .nav-primary > li > span {
  text-decoration: none;
  color: rgba(255,255,255,0.85);
  cursor: pointer;
  padding-block: 0.5rem;
  display: inline-block;
  transition: color .12s ease;
}
.nav-primary > li > a:hover, .nav-primary > li:hover > span { color: var(--cyan); }
.nav-dropdown {
  position: absolute;
  top: 100%; left: -1rem;
  background: var(--ink-2);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0.75rem;
  min-width: 280px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(4px);
  transition: opacity .12s ease, transform .12s ease, visibility .12s;
  box-shadow: 0 20px 40px rgba(0,0,0,0.4);
  list-style: none;
  margin: 0;
}
.nav-primary > li:hover .nav-dropdown,
.nav-primary > li:focus-within .nav-dropdown {
  opacity: 1; visibility: visible; transform: translateY(0);
}
.nav-dropdown li { margin: 0; }
.nav-dropdown a {
  display: block;
  padding: 0.55rem 0.7rem;
  text-decoration: none;
  border-radius: var(--radius);
  font-size: var(--step--1);
  color: rgba(255,255,255,0.85);
}
.nav-dropdown a:hover { background: var(--ink-3); color: var(--cyan); }

.nav-toggle { display: none; }

@media (max-width: 980px) {
  .nav-primary { display: none; }
  .nav-toggle {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    border: 1px solid var(--line);
    background: transparent;
    color: var(--white);
    padding: 0.5rem 0.8rem;
    border-radius: var(--radius);
    cursor: pointer;
    font: inherit;
    font-size: var(--step--1);
  }
  body.nav-open .nav-primary {
    display: block;
    position: fixed;
    inset: 64px 0 0;
    background: var(--ink);
    padding: 2rem var(--gutter);
    overflow-y: auto;
  }
  body.nav-open .nav-primary > li { display: block; margin-bottom: 1rem; }
  body.nav-open .nav-dropdown {
    position: static;
    opacity: 1; visibility: visible; transform: none;
    box-shadow: none; border: 0; padding: 0;
    background: transparent; margin-top: 0.5rem; margin-left: 0.5rem;
  }
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font: inherit;
  font-size: var(--step-0);
  font-weight: 600;
  text-decoration: none;
  padding: 0.95rem 1.5rem;
  border-radius: var(--radius);
  border: 1px solid transparent;
  cursor: pointer;
  transition: background .15s ease, color .15s ease, border-color .15s ease, transform .05s ease;
  line-height: 1.1;
  letter-spacing: -0.01em;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary {
  background: var(--cyan);
  color: var(--ink);
  border-color: var(--cyan);
}
.btn-primary:hover { background: var(--cyan-2); border-color: var(--cyan-2); color: var(--ink); }
.btn-outline {
  background: transparent;
  color: var(--white);
  border-color: rgba(255,255,255,0.25);
}
.btn-outline:hover { background: var(--white); color: var(--ink); border-color: var(--white); }
.btn-ghost {
  background: transparent;
  color: var(--cyan);
  border-color: transparent;
  padding: 0.5rem 0;
  font-weight: 600;
}
.btn-ghost:hover { color: var(--cyan-2); transform: none; }
.btn-light {
  background: var(--white);
  color: var(--ink);
  border-color: var(--white);
}
.btn-light:hover { background: var(--cyan); border-color: var(--cyan); color: var(--ink); }
.btn-block { display: flex; width: 100%; justify-content: center; }

.eyebrow {
  display: inline-block;
  font-size: var(--step--2);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: 1rem;
  font-weight: 600;
  font-family: var(--font-mono);
}
.eyebrow.muted { color: var(--muted); }
.eyebrow.dark { color: var(--ink-2) !important; }

/* ===== Hero ===== */
.hero {
  padding-block: clamp(4rem, 9vw, 9rem);
  position: relative;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  opacity: 0.6;
  pointer-events: none;
}
.hero-bg img { width: 100%; height: 100%; object-fit: cover; }
.hero .container { position: relative; z-index: 1; }
.hero h1 { max-width: 18ch; }
.hero h1 .accent { color: var(--cyan); }
.hero .lede {
  font-family: var(--font-sans);
  font-size: var(--step-2);
  line-height: 1.4;
  color: rgba(255,255,255,0.78);
  max-width: 42ch;
  margin-bottom: 2.5rem;
  font-weight: 400;
}
.hero-cta { display: flex; flex-wrap: wrap; gap: 1rem; align-items: center; margin-top: 1.5rem; }
.hero-meta {
  margin-top: 4rem;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1.5rem;
  border-top: 1px solid var(--line);
  padding-top: 1.5rem;
}
.hero-meta dt { font-size: var(--step--2); letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted); margin-bottom: 0.4rem; font-family: var(--font-mono); }
.hero-meta dd { margin: 0; font-family: var(--font-sans); font-size: var(--step-1); font-weight: 600; color: var(--white); }

/* ===== Cards / grids ===== */
.grid { display: grid; gap: 1.5rem; }
.grid-2 { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.grid-4 { grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }

.card {
  background: var(--ink-2);
  border: 1px solid var(--line);
  padding: 1.75rem;
  border-radius: var(--radius-lg);
  transition: border-color .2s ease, transform .2s ease, background .2s ease;
  position: relative;
  overflow: hidden;
}
.card::before {
  content: "";
  position: absolute;
  top: 0; left: 0;
  width: 0; height: 2px;
  background: var(--cyan);
  transition: width .25s ease;
}
.card:hover { border-color: var(--cyan-soft); background: var(--ink-3); transform: translateY(-2px); }
.card:hover::before { width: 100%; }
.card .card-eyebrow { display: block; font-size: var(--step--2); letter-spacing: 0.14em; text-transform: uppercase; color: var(--cyan); margin-bottom: 0.6rem; font-family: var(--font-mono); font-weight: 600; }
.card h3 { font-size: var(--step-1); margin-bottom: 0.5rem; color: var(--white); }
.card p { font-size: var(--step--1); color: rgba(255,255,255,0.7); margin-bottom: 0.75rem; }
.card a { font-size: var(--step--1); }
.card-link { display: block; text-decoration: none; color: inherit; }
.card-link:hover { text-decoration: none; }

.section-light .card { background: var(--white); border-color: rgba(0,0,0,0.08); color: var(--ink); }
.section-light .card:hover { background: var(--white); border-color: var(--cyan); }
.section-light .card p { color: rgba(0,0,0,0.7); }

.numbered-list { list-style: none; padding: 0; counter-reset: step; margin-top: 2rem; }
.numbered-list li {
  counter-increment: step;
  display: grid;
  grid-template-columns: 4rem 1fr;
  gap: 1.5rem;
  padding: 1.5rem 0;
  border-top: 1px solid var(--line);
}
.numbered-list li::before {
  content: counter(step, decimal-leading-zero);
  font-family: var(--font-mono);
  font-size: var(--step-2);
  color: var(--cyan);
  font-feature-settings: "tnum";
  font-weight: 600;
}
.numbered-list h4 { margin-bottom: 0.3rem; color: var(--white); }
.numbered-list p { color: rgba(255,255,255,0.7); margin: 0; }

/* ===== Comparison table ===== */
.comp-table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--step--1);
  margin-block: 2rem;
  background: var(--ink-2);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.comp-table th, .comp-table td {
  text-align: left;
  padding: 0.95rem 1.2rem;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
  color: rgba(255,255,255,0.86);
}
.comp-table thead th {
  font-family: var(--font-mono);
  font-weight: 600;
  background: var(--ink-3);
  border-bottom: 1px solid var(--cyan);
  font-size: var(--step--2);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--cyan);
}
.comp-table tbody th {
  font-weight: 600;
  background: transparent;
  color: var(--white);
  width: 28%;
}
.comp-table .col-us { background: rgba(0,191,223,0.08); color: var(--white); }
.comp-table tbody tr:last-child td, .comp-table tbody tr:last-child th { border-bottom: 0; }

/* ===== FAQ ===== */
.faq { border-top: 1px solid var(--line); margin-top: 1.5rem; }
.faq details {
  border-bottom: 1px solid var(--line);
  padding: 1.5rem 0;
}
.faq summary {
  font-family: var(--font-sans);
  font-size: var(--step-1);
  cursor: pointer;
  list-style: none;
  position: relative;
  padding-right: 2.5rem;
  font-weight: 600;
  color: var(--white);
  transition: color .15s ease;
}
.faq summary:hover { color: var(--cyan); }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+";
  position: absolute;
  right: 0; top: -2px;
  font-size: var(--step-3);
  color: var(--cyan);
  transition: transform .15s ease;
  font-weight: 300;
}
.faq details[open] summary::after { content: "−"; }
.faq details > *:not(summary) { margin-top: 1rem; color: rgba(255,255,255,0.78); }
.faq details > p:last-child { margin-bottom: 0.5rem; }

/* ===== Pull quote / proof ===== */
.pullquote {
  font-family: var(--font-serif);
  font-size: var(--step-4);
  line-height: 1.2;
  color: var(--white);
  max-width: 22ch;
  margin: 0 0 1.5rem;
  font-weight: 400;
}
.pullquote::before { content: "“"; color: var(--cyan); font-size: 1.2em; line-height: 0; vertical-align: -0.15em; margin-right: 0.05em; }
.pullquote-attr {
  font-size: var(--step--1);
  color: var(--muted);
  font-style: normal;
  font-family: var(--font-mono);
  letter-spacing: 0.04em;
}

.proof-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 1.5rem;
  align-items: center;
  padding-block: 1rem;
}
.proof-grid .logo-tile {
  font-family: var(--font-mono);
  font-size: var(--step--1);
  color: var(--muted);
  text-align: center;
  padding: 1rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  font-weight: 500;
}

/* ===== Stat block ===== */
.stat-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 2rem;
  padding-block: 2rem;
  border-block: 1px solid var(--line);
}
.stat .stat-value {
  font-family: var(--font-sans);
  font-size: var(--step-5);
  line-height: 1;
  letter-spacing: -0.04em;
  color: var(--white);
  font-feature-settings: "tnum";
  font-weight: 700;
}
.stat .stat-value .accent { color: var(--cyan); }
.stat .stat-label {
  font-size: var(--step--1);
  color: var(--muted);
  margin-top: 0.5rem;
  max-width: 22ch;
}

/* ===== Network list (about page) ===== */
.network-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.25rem;
  margin: 1.5rem 0 2rem;
}
.network-item {
  background: var(--ink-2);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  transition: border-color .15s ease, transform .15s ease;
}
.network-item:hover { border-color: var(--cyan-soft); transform: translateY(-1px); }
.network-item h3 {
  font-size: var(--step-1);
  margin: 0 0 0.4rem;
}
.network-item h3 a {
  color: var(--white);
  border-bottom: 1px solid var(--cyan);
}
.network-item h3 a:hover { color: var(--cyan); }
.network-item p {
  font-size: var(--step--1);
  color: rgba(255,255,255,0.75);
  margin: 0;
  line-height: 1.5;
}

/* ===== Contact card ===== */
.contact-card {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.5rem;
  margin: 2.5rem 0;
  padding: 1.75rem;
  background: var(--ink-2);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
}
.contact-card-block h3 {
  font-family: var(--font-mono);
  font-size: var(--step--2);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--cyan);
  margin: 0 0 0.5rem;
  font-weight: 600;
}
.contact-card-block p, .contact-card-block address {
  font-size: var(--step--1);
  color: rgba(255,255,255,0.85);
  margin: 0;
  line-height: 1.5;
  font-style: normal;
}
.contact-card-block a {
  color: var(--white);
  border-bottom: 1px solid var(--cyan);
}
.contact-card-block a:hover { color: var(--cyan); }

/* ===== Inline CTA block ===== */
.inline-cta {
  margin-top: 2rem;
  padding: 1.75rem;
  background: var(--ink-2);
  border: 1px solid var(--cyan-soft);
  border-radius: var(--radius-lg);
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 1.5rem;
  align-items: center;
}
.inline-cta .inline-cta-sub {
  font-size: var(--step--1);
  color: var(--muted);
  font-family: var(--font-mono);
  letter-spacing: 0.02em;
}
.inline-cta .btn-primary { flex-shrink: 0; }
.prose .inline-cta { margin-block: 2rem; }

/* CTA-style card (Book a brief etc) in related grids */
.card-cta {
  background: linear-gradient(135deg, var(--ink-2), var(--ink-3));
  border-color: var(--cyan-soft);
}
.card-cta:hover { border-color: var(--cyan); background: var(--ink-3); }
.card-cta h3 { color: var(--cyan); }
.card-cta .btn-ghost { color: var(--cyan); font-weight: 600; }

/* ===== Hero column layout ===== */
.split {
  display: grid;
  gap: 3rem;
  grid-template-columns: 1.1fr 0.9fr;
  align-items: start;
}
@media (max-width: 820px) { .split { grid-template-columns: 1fr; } }

/* ===== Long form / prose ===== */
.prose { max-width: 70ch; }
.prose h2 { margin-top: 2.5rem; }
.prose h3 { margin-top: 2rem; color: var(--white); }
.prose ul, .prose ol { margin-left: 0; padding-left: 1.25rem; }
.prose blockquote { margin-left: 0; }
.prose .prose-intro {
  font-family: var(--font-serif);
  font-size: var(--step-2);
  line-height: 1.4;
  color: var(--white);
  font-style: italic;
  max-width: 60ch;
  border-bottom: 1px solid var(--line);
  padding-bottom: 1.5rem;
  margin-bottom: 2rem;
  font-weight: 400;
}
.prose-callout {
  border-left: 3px solid var(--cyan);
  background: var(--ink-2);
  padding: 1.5rem;
  margin: 2rem 0;
  border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
}
.prose-callout h4 { margin-top: 0; font-family: var(--font-mono); font-size: var(--step--2); text-transform: uppercase; letter-spacing: 0.12em; color: var(--cyan); }
.prose-callout p:last-child { margin-bottom: 0; }

/* ===== Enquiry form ===== */
.enquiry {
  background: var(--ink-2);
  color: var(--white);
  padding: clamp(2.5rem, 5vw, 4.5rem) 0;
  border-top: 1px solid var(--line);
  position: relative;
  overflow: hidden;
}
.enquiry .container { position: relative; z-index: 1; }
.enquiry h2 { color: var(--white); margin-bottom: 0.75rem; }
.enquiry .lede { color: rgba(255,255,255,0.78); max-width: 50ch; margin-bottom: 2rem; font-size: var(--step-1); }
.enquiry form {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  max-width: 720px;
}
.enquiry .full { grid-column: 1 / -1; }
.enquiry label {
  display: block;
  font-size: var(--step--2);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: 0.4rem;
  font-weight: 600;
  font-family: var(--font-mono);
}
.enquiry input, .enquiry textarea, .enquiry select {
  width: 100%;
  background: var(--ink);
  border: 1px solid var(--line);
  color: var(--white);
  padding: 0.95rem 1rem;
  font: inherit;
  font-size: var(--step-0);
  border-radius: var(--radius);
  transition: border-color .15s ease, background .15s ease;
}
.enquiry input:focus, .enquiry textarea:focus, .enquiry select:focus {
  outline: none;
  border-color: var(--cyan);
  background: var(--ink-3);
}
.enquiry textarea { min-height: 140px; resize: vertical; }
.enquiry .small { font-size: var(--step--2); color: var(--muted); }
.enquiry .submit-row { display: flex; gap: 1rem; align-items: center; flex-wrap: wrap; margin-top: 0.5rem; }
@media (max-width: 640px) { .enquiry form { grid-template-columns: 1fr; } }

/* ===== AI section ===== */
.ai-section { position: relative; overflow: hidden; padding-block: clamp(4rem, 8vw, 7rem); }
.ai-section-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 85% 15%, rgba(0,191,223,0.18), transparent 55%),
    radial-gradient(circle at 10% 85%, rgba(0,191,223,0.10), transparent 55%);
  pointer-events: none;
}
.ai-section .container { position: relative; z-index: 1; }
.ai-section-header { max-width: 60ch; margin-bottom: 3rem; }
.ai-section-header h2 { font-size: var(--step-5); }
.ai-section-header .lede { font-size: var(--step-2); color: rgba(255,255,255,0.78); line-height: 1.4; }

.ai-methods {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  margin-bottom: 4rem;
}
.ai-method {
  background: var(--ink);
  border: 1px solid var(--line);
  padding: 1.75rem;
  border-radius: var(--radius-lg);
  position: relative;
  transition: border-color .2s ease, transform .2s ease;
}
.ai-method:hover { border-color: var(--cyan-soft); transform: translateY(-2px); }
.ai-method-num {
  font-family: var(--font-mono);
  font-size: var(--step--1);
  color: var(--cyan);
  letter-spacing: 0.1em;
  margin-bottom: 0.75rem;
  font-weight: 600;
}
.ai-method h3 { font-size: var(--step-1); margin-bottom: 0.6rem; }
.ai-method p { font-size: var(--step--1); color: rgba(255,255,255,0.75); margin-bottom: 0; }

/* Data Safety standalone section */
.data-safety-section {
  position: relative;
  overflow: hidden;
  padding-block: clamp(4rem, 8vw, 7rem);
  background: var(--ink);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.data-safety-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 10% 10%, rgba(0,191,223,0.18), transparent 50%),
    radial-gradient(circle at 90% 90%, rgba(225,6,0,0.10), transparent 55%);
  pointer-events: none;
}
.data-safety-section .container { position: relative; z-index: 1; }
.data-safety-header { max-width: 60ch; margin-bottom: 2.5rem; }
.data-safety-header .eyebrow { color: var(--signal); }
.data-safety-header h2 {
  font-size: var(--step-5);
  letter-spacing: -0.03em;
  font-weight: 700;
  margin-bottom: 0.75rem;
}
.data-safety-header .lede {
  font-size: var(--step-2);
  color: rgba(255,255,255,0.82);
  line-height: 1.4;
  font-weight: 400;
  margin-bottom: 0;
}
.data-safety-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1rem 2rem;
}
.data-safety-list li {
  font-size: var(--step-0);
  color: rgba(255,255,255,0.88);
  padding: 0.85rem 0 0.85rem 1.75rem;
  position: relative;
  line-height: 1.45;
  margin: 0;
  border-top: 1px solid var(--line);
}
.data-safety-list li::before {
  content: "";
  position: absolute;
  left: 0; top: 1.25em;
  width: 10px; height: 10px;
  background: var(--cyan);
  transform: rotate(45deg);
}

/* ===== Footer ===== */
.site-footer {
  background: var(--ink);
  color: var(--white);
  padding-block: 4rem 1.5rem;
  border-top: 1px solid var(--line);
}
.site-footer .footer-grid {
  display: grid;
  grid-template-columns: 1.4fr repeat(5, 1fr);
  gap: 2rem;
  padding-bottom: 3rem;
  border-bottom: 1px solid var(--line);
}
@media (max-width: 1100px) { .site-footer .footer-grid { grid-template-columns: 1fr 1fr 1fr; } }
@media (max-width: 640px)  { .site-footer .footer-grid { grid-template-columns: 1fr 1fr; } }
.site-footer h4 {
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: var(--step--2);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  margin-bottom: 1rem;
  font-weight: 600;
}
.site-footer ul { list-style: none; padding: 0; margin: 0; }
.site-footer li { margin-bottom: 0.5rem; }
.site-footer a {
  color: rgba(255,255,255,0.7);
  text-decoration: none;
  font-size: var(--step--1);
}
.site-footer a:hover { color: var(--cyan); }
.site-footer .footer-brand .logo { color: var(--white); font-size: var(--step-2); }
.site-footer .footer-brand p { font-size: var(--step--1); color: rgba(255,255,255,0.6); max-width: 30ch; }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  padding-top: 1.5rem;
  font-size: var(--step--2);
  color: var(--muted-2);
  font-family: var(--font-mono);
  letter-spacing: 0.04em;
}

/* ===== Breadcrumbs ===== */
.crumbs {
  font-size: var(--step--2);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 2rem;
  font-family: var(--font-mono);
  font-weight: 500;
}
.crumbs a { color: var(--muted); }
.crumbs a:hover { color: var(--cyan); }
.crumbs .sep { margin-inline: 0.5rem; color: var(--cyan); }

/* ===== Page header ===== */
.page-header {
  padding-block: clamp(3rem, 6vw, 6rem) clamp(2rem, 4vw, 3rem);
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
}
.page-header-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  opacity: 0.35;
  pointer-events: none;
}
.page-header-bg img { width: 100%; height: 100%; object-fit: cover; }
.page-header .container { position: relative; z-index: 1; }
.page-header h1 { font-size: var(--step-6); max-width: 24ch; }
.page-header .lede {
  font-family: var(--font-sans);
  font-size: var(--step-2);
  line-height: 1.4;
  color: rgba(255,255,255,0.78);
  max-width: 50ch;
  margin-block: 1rem 2rem;
  font-weight: 400;
}

/* ===== Related ===== */
.related {
  padding-block: 4rem;
  border-top: 1px solid var(--line);
}
.related h2 { font-size: var(--step-3); margin-bottom: 1.5rem; }

/* ===== Utility ===== */
.text-center { text-align: center; }
.text-muted { color: var(--muted); }
.text-cyan { color: var(--cyan); }
.no-margin { margin: 0; }
.mb-0 { margin-bottom: 0; }
.mt-0 { margin-top: 0; }
.mt-1 { margin-top: 1rem; }
.mt-2 { margin-top: 2rem; }
.mt-3 { margin-top: 3rem; }
.mb-1 { margin-bottom: 1rem; }
.mb-2 { margin-bottom: 2rem; }
.mb-3 { margin-bottom: 3rem; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; scroll-behavior: auto !important; }
}

@media print {
  .site-header, .site-footer, .enquiry, .nav-toggle, .hero-bg, .page-header-bg { display: none; }
  body { background: white; color: black; }
}