:root {
  --paper: #f7f8f2;
  --surface: #ffffff;
  --ink: #19271f;
  --muted: #526055;
  --green: #1c4434;
  --green-hover: #123022;
  --tint: #e9ede3;
  --line: #cbd2c7;
  --accent: #d5f2a4;
  --error: #9e2424;
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 16px;
  --space-4: 24px;
  --space-5: 40px;
  --space-6: 64px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 24px; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 16px;
  line-height: 1.65;
  overflow-wrap: anywhere;
}
body.menu-open { overflow-y: hidden; }
body.has-cookie-banner { padding-bottom: var(--cookie-reserve, 240px); }
body.has-storage-notice { padding-bottom: var(--notice-reserve, 120px); }
[hidden] { display: none !important; }
h1, h2, h3, p, figure, dl { margin: 0; }
h1, h2, h3, nav, .brand, .footer-brand { overflow-wrap: anywhere; }
h1, h2, h3 { line-height: 1.08; font-weight: 600; letter-spacing: -.045em; }
h1 { font-size: clamp(2.5rem, 5.5vw, 5.4rem); max-width: 1050px; }
h2 { font-size: clamp(1.8rem, 3.1vw, 3rem); }
h3 { font-size: 1.55rem; }
a { color: var(--green); text-underline-offset: 4px; text-decoration-thickness: 1px; }
a:hover { color: var(--green-hover); text-decoration-thickness: 2px; }
button, input, select, textarea { font: inherit; }
button, a, input, textarea, select { -webkit-tap-highlight-color: transparent; }
button { cursor: pointer; }
button:disabled { cursor: not-allowed; opacity: .65; }
:focus-visible { outline: 3px solid #946200; outline-offset: 4px; }
svg { display: block; max-width: 100%; height: auto; }
address { font-style: normal; }
code { font-size: .9em; overflow-wrap: anywhere; }
section[id] { scroll-margin-top: 24px; }
.page-shell { width: min(100% - 80px, 1280px); margin-inline: auto; }
.site-header {
  height: 64px;
  padding-inline: 40px;
  border-bottom: 1px solid var(--line);
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  align-items: center;
  gap: 24px;
  position: relative;
  z-index: 20;
  background: var(--paper);
  color: var(--ink);
}
.site-header > *, .hero > *, .section-heading > *, .guide-grid > *,
.card-stats > *, .footer-grid > *, .article-layout > *, .contact-grid > *,
.cookie-banner > *, .cookie-actions > *, .supporting-section > *,
.dialog-actions > *, .brand > * { min-width: 0; }
.brand { display: flex; align-items: center; gap: 8px; text-decoration: none; font-size: .9rem; font-weight: 700; line-height: 1.1; letter-spacing: -.035em; }
.brand-mark { width: 28px; height: 28px; flex: 0 0 28px; fill: none; stroke: currentColor; stroke-width: 2; }
.primary-nav { display: flex; justify-content: center; gap: 24px; }
.primary-nav a { font-size: .875rem; font-weight: 600; text-decoration: none; }
.primary-nav a[aria-current="page"] { text-decoration: underline; }
.header-cta { justify-self: end; font-size: .8rem; font-weight: 700; text-decoration: none; line-height: 1.15; }
.header-cta:hover { text-decoration: underline; }
.menu-toggle { display: none; }
.skip-link {
  position: fixed;
  top: 8px;
  left: 16px;
  z-index: 100;
  transform: translateY(-160%);
  padding: 16px;
  background: var(--green);
  color: white;
}
.skip-link:focus { transform: translateY(0); }
.hero { display: grid; grid-template-columns: 1.12fr 1fr; align-items: center; gap: 64px; padding-block: 64px; }
.hero-copy { display: grid; gap: 24px; }
.eyebrow { color: var(--muted); font-size: .72rem; font-weight: 700; text-transform: uppercase; letter-spacing: .12em; line-height: 1.5; }
.lead { font-size: clamp(1.1rem, 1.65vw, 1.35rem); line-height: 1.55; color: var(--muted); max-width: 760px; }
.quiet { color: var(--muted); font-size: .8rem; line-height: 1.6; }
.hero-copy .quiet { max-width: 470px; }
.hero-visual { background: var(--tint); color: var(--green); }
.security-patrol-robot-illustration { width: 100%; }
.visual-caption { padding: 24px; border-top: 1px solid var(--line); display: flex; align-items: center; gap: 16px; font-size: .8rem; }
.status-dot { display: inline-block; width: 8px; height: 8px; flex: 0 0 8px; border-radius: 50%; background: var(--green); color: white; }
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  width: fit-content;
  max-width: 100%;
  min-height: 48px;
  padding: 16px 24px;
  border: 1px solid var(--green);
  border-radius: 0;
  background: var(--green);
  color: #ffffff;
  text-align: center;
  text-decoration: none;
  font-size: .875rem;
  font-weight: 700;
  line-height: 1.3;
  transition: background-color .18s ease, color .18s ease;
}
.button:hover { background: var(--green-hover); color: #ffffff; text-decoration: none; }
.button.secondary { background: var(--surface); color: var(--green); border-color: var(--line); }
.button.secondary:hover { background: var(--tint); color: var(--green-hover); border-color: var(--green); }
.text-link { font-size: .9rem; font-weight: 700; }
.section-heading { display: grid; grid-template-columns: 1.5fr 1fr; gap: 64px; align-items: end; margin-bottom: 40px; }
.section-heading .eyebrow, .supporting-section .eyebrow { margin-bottom: 24px; }
.section-heading > p { max-width: 360px; color: var(--muted); }
.guide-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; }
.data-card { border: 1px solid var(--line); background: var(--surface); color: var(--ink); display: flex; flex-direction: column; }
.card-stats { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; padding: 24px; border-bottom: 1px solid var(--line); background: var(--tint); color: var(--green); }
.card-stats > div { display: flex; flex-direction: column; gap: 12px; }
.card-stats strong { font-size: 1.5rem; font-weight: 500; line-height: 1.1; letter-spacing: -.045em; }
.card-stats span { font-size: .7rem; color: var(--muted); line-height: 1.4; }
.card-body { padding: 24px; display: flex; flex-direction: column; gap: 24px; flex: 1; }
.card-body > * { min-width: 0; }
.card-body > p:not(.eyebrow):not(.quiet) { color: var(--muted); }
.card-body > .text-link { margin-top: auto; }
.card-body h2 { font-size: 1.5rem; }
.guide-grid .data-card { transition: border-color .18s ease; }
.guide-grid .data-card:hover { border-color: var(--green); }
.guide-grid .data-card:nth-last-child(-n+2) { grid-column: span 1; }
.supporting-section { margin-top: 64px; padding-block: 64px; border-top: 1px solid var(--line); display: grid; grid-template-columns: 1fr 1fr; gap: 64px; }
.supporting-copy { display: grid; gap: 24px; }
.site-footer { margin-top: 64px; padding-block: 64px; border-top: 1px solid var(--line); background: var(--tint); color: var(--ink); }
.footer-grid { display: grid; grid-template-columns: 1.25fr 1.5fr .65fr .8fr; gap: 40px; font-size: .8rem; }
.footer-grid > div { display: flex; flex-direction: column; align-items: flex-start; gap: 16px; }
.footer-grid h2 { font-size: .75rem; letter-spacing: .08em; text-transform: uppercase; line-height: 1.5; }
.footer-brand { font-size: 1.05rem; font-weight: 700; line-height: 1.3; text-decoration: none; }
.footer-grid a { max-width: 100%; }
.footer-preferences { border: 0; padding: 0; text-align: left; background: transparent; color: var(--green); text-decoration: underline; text-underline-offset: 4px; font-size: inherit; }
.footer-preferences:hover { color: var(--green-hover); text-decoration-thickness: 2px; }
.article-page, .policy-page, .contact-page { padding-top: 64px; }
.article-heading { display: flex; flex-direction: column; align-items: flex-start; gap: 24px; margin-bottom: 64px; }
.article-heading h1 { max-width: 1100px; }
.article-layout { display: grid; grid-template-columns: minmax(0, .65fr) minmax(0, 1.65fr); gap: 64px; align-items: start; }
.article-sidebar nav { display: flex; flex-direction: column; gap: 16px; font-size: .875rem; }
.article-copy { max-width: 800px; }
.article-copy section + section { margin-top: 64px; }
.article-copy h2 { font-size: clamp(1.65rem, 2.3vw, 2.2rem); margin-bottom: 24px; }
.article-copy p + p { margin-top: 24px; }
.article-copy section > .button { margin-top: 24px; }
.article-copy .table-wrapper { margin-block: 24px; }
.article-next { margin-top: 64px; padding-top: 40px; border-top: 1px solid var(--line); display: flex; flex-direction: column; gap: 24px; align-items: flex-start; }
.article-next h2 { margin: 0; }
.policy-copy { margin-left: auto; margin-right: auto; }
.policy-page .article-heading { border-bottom: 1px solid var(--line); padding-bottom: 64px; }
.table-wrapper { max-width: 100%; overflow-x: auto; border: 1px solid var(--line); background: var(--surface); color: var(--ink); }
table { border-collapse: collapse; width: 100%; text-align: left; font-size: .875rem; }
caption { text-align: left; padding: 24px; font-weight: 700; }
th, td { padding: 24px; vertical-align: top; border-top: 1px solid var(--line); }
thead th { background: var(--tint); color: var(--green); }
tbody th { font-weight: 600; }
.contact-grid { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr); gap: 40px; align-items: start; }
.contact-details { display: flex; flex-direction: column; gap: 64px; }
.contact-details h3 { font-size: 1rem; line-height: 1.5; margin-bottom: 16px; letter-spacing: 0; }
.contact-form { display: flex; flex-direction: column; gap: 24px; }
.form-field { display: flex; flex-direction: column; gap: 8px; }
label { font-size: .875rem; font-weight: 700; }
label span { font-weight: 400; color: var(--muted); }
input, select, textarea { width: 100%; min-width: 0; max-width: 100%; border: 1px solid #7d8a7f; border-radius: 0; background: var(--surface); color: var(--ink); padding: 16px; }
select { text-overflow: ellipsis; }
textarea { resize: vertical; }
.field-hint { color: var(--muted); font-size: .8rem; }
.field-error { color: var(--error); font-size: .85rem; }
.is-invalid { border: 2px solid var(--error); }
.form-summary { color: var(--error); font-weight: 700; font-size: .875rem; }
.email-result { padding: 24px; background: var(--tint); color: var(--ink); display: flex; flex-direction: column; gap: 24px; }
.email-result h3 { font-size: 1.4rem; }
.static-map { border: 1px solid var(--line); background: var(--tint); color: var(--green); }
.illustrative-london-office-map { width: 100%; }
.static-map figcaption { padding: 24px; border-top: 1px solid var(--line); font-size: .8rem; }
.cookie-banner {
  position: fixed;
  z-index: 40;
  bottom: 0;
  left: 0;
  right: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 24px;
  padding: 24px 40px;
  border-top: 1px solid var(--green);
  background: var(--surface);
  color: var(--ink);
  max-height: 75vh;
  overflow-y: auto;
}
.cookie-banner h2 { font-size: 1.2rem; margin-bottom: 8px; }
.cookie-banner p { font-size: .8rem; max-width: 620px; }
.cookie-actions { display: flex; gap: 8px; flex-wrap: wrap; }
.cookie-actions .button { padding: 16px; font-size: .75rem; }
.preferences-dialog { width: min(560px, calc(100% - 32px)); max-height: calc(100dvh - 32px); padding: 24px; border: 1px solid var(--green); background: var(--paper); color: var(--ink); overflow-y: auto; }
.preferences-dialog::backdrop { background: rgb(15 28 20 / .65); color: #ffffff; }
.preferences-dialog h2 { font-size: 1.8rem; }
.preferences-dialog > * + * { margin-top: 24px; }
.preference-list { display: grid; grid-template-columns: minmax(0, .6fr) minmax(0, 1fr); gap: 16px 24px; font-size: .875rem; }
.preference-list dt { font-weight: 700; }
.preference-list dd { margin: 0; }
.dialog-actions { display: flex; flex-wrap: wrap; gap: 16px; }
.storage-notice { position: fixed; bottom: 0; left: 0; right: 0; z-index: 45; padding: 16px 24px; border-top: 1px solid var(--green); background: var(--tint); color: var(--green); font-size: .8rem; }
@media (min-width: 1050px) {
  .guide-grid { grid-template-columns: repeat(6, minmax(0, 1fr)); }
  .guide-grid .data-card { grid-column: span 2; }
  .guide-grid .data-card:nth-last-child(-n+2) { grid-column: span 3; }
}
@media (max-width: 1100px) {
  .site-header { padding-inline: 24px; gap: 16px; }
  .page-shell { width: calc(100% - 48px); }
  .hero { gap: 40px; }
  .primary-nav { gap: 16px; }
  .brand { font-size: .8rem; }
  .footer-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .cookie-banner { grid-template-columns: minmax(0, 1fr); padding: 24px; gap: 16px; }
  .article-layout { gap: 40px; grid-template-columns: minmax(0, .8fr) minmax(0, 1.6fr); }
  .guide-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 767px) {
  .site-header { height: 52px; padding-inline: 16px; grid-template-columns: minmax(0, 1fr) auto auto; gap: 8px; }
  .brand { font-size: .8rem; max-width: 230px; }
  .brand-mark { width: 24px; height: 24px; flex-basis: 24px; }
  .header-cta { font-size: .7rem; max-width: 80px; }
  .menu-toggle { display: flex; align-items: center; justify-content: center; width: 36px; height: 40px; padding: 4px; border: 1px solid var(--line); background: var(--paper); color: var(--green); font-size: 1.3rem; }
  .primary-nav { display: none; position: fixed; inset: 52px 0 0; z-index: 30; padding: 40px 24px; background: var(--paper); color: var(--ink); flex-direction: column; justify-content: flex-start; align-items: stretch; gap: 24px; overflow-y: auto; }
  .primary-nav.is-open { display: flex; }
  .primary-nav a { font-size: 1.8rem; border-bottom: 1px solid var(--line); padding: 16px; }
  .page-shell { width: calc(100% - 40px); }
  .hero { grid-template-columns: minmax(0, 1fr); gap: 40px; }
  .hero h1 { font-size: clamp(2.6rem, 9.4vw, 4.5rem); }
  .hero-visual { max-width: 560px; width: 100%; }
  .section-heading { grid-template-columns: minmax(0, 1fr); gap: 24px; }
  .section-heading > p { max-width: 100%; }
  .guide-grid { grid-template-columns: minmax(0, 1fr); }
  .supporting-section { grid-template-columns: minmax(0, 1fr); gap: 24px; padding-bottom: 0; }
  .footer-grid { gap: 40px 24px; }
  .article-layout { grid-template-columns: minmax(0, 1fr); gap: 64px; }
  .article-sidebar nav { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px 24px; }
  .contact-grid { grid-template-columns: minmax(0, 1fr); gap: 64px; }
  .cookie-banner { padding: 16px; }
  .cookie-actions { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .cookie-actions .button { width: 100%; padding: 16px; }
  .cookie-actions .button:last-child { grid-column: 1 / -1; }
  .preferences-dialog { padding: 24px; }
  th, td { padding: 16px; }
}
@media (max-width: 399px) {
  .brand { font-size: .68rem; gap: 4px; }
  .brand-mark { width: 20px; height: 20px; flex-basis: 20px; }
  .header-cta { max-width: 64px; font-size: .65rem; }
  .site-header { gap: 8px; }
  h1 { font-size: 2.4rem; }
  .hero h1 { font-size: 2.5rem; }
  h2 { font-size: 1.8rem; }
  .card-body, .card-stats { padding: 24px; }
  .card-stats { gap: 24px; }
  .card-stats strong { font-size: 1.3rem; }
  .footer-grid { grid-template-columns: minmax(0, 1fr); }
  .article-sidebar nav { grid-template-columns: minmax(0, 1fr); }
  .preference-list { grid-template-columns: minmax(0, 1fr); gap: 8px; }
  .preference-list dd { margin-bottom: 16px; }
  .dialog-actions { flex-direction: column; }
  .dialog-actions .button { width: 100%; }
  .contact-form .button, .email-result .button { width: 100%; padding-inline: 16px; }
  .email-result { padding: 16px; }
  .cookie-actions .button { font-size: .7rem; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  html { scroll-behavior: auto; }
}