:root {
  /* Brand ("Reach" logo system): navy #0F2A44, teal #14B8A6, slate #3D5670, mist #F6F7F9 */
  --navy: #0F2A44;
  --teal: #14B8A6;
  --slate: #3D5670;
  --mist: #F6F7F9;

  --bg: #ffffff;
  --bg-alt: var(--mist);
  --text: var(--navy);
  --muted: #52667c;
  --line: #E2E6EB;
  --link: #0d8578; /* teal darkened for readable text on white */
  --accent: var(--teal);
  --accent-text: var(--navy);
  --hero-from: var(--navy);
  --hero-to: #173d61;
  --hero-text: #ffffff;
  --logo-ink: var(--navy);
  --logo-sub: var(--slate);
  --max: 1080px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0a1d30;
    --bg-alt: var(--navy);
    --text: #eef2f6;
    --muted: #9FB3C8;
    --line: #22405e;
    --link: var(--teal);
    --hero-from: #081827;
    --hero-to: var(--navy);
    --logo-ink: #ffffff;
    --logo-sub: #9FB3C8;
  }
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Inter, "Segoe UI", system-ui, -apple-system, Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.6;
}

a { color: var(--link); }

.wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 20px;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: color-mix(in srgb, var(--bg) 92%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 64px;
  flex-wrap: wrap;
}

.brand {
  display: flex;
  align-items: center;
  text-decoration: none;
}

/* Logo SVG (inline so its colors follow light/dark mode) */
.logo { height: 44px; width: auto; display: block; }
.logo-ink { stroke: var(--logo-ink); }
.logo-dot { fill: var(--teal); }
.logo-word, .logo-sub { font-family: Inter, "Segoe UI", Helvetica, Arial, sans-serif; }
.logo-word { font-size: 60px; font-weight: 800; letter-spacing: -1px; fill: var(--logo-ink); }
.logo-sub { font-size: 16.5px; font-weight: 600; letter-spacing: 4.2px; fill: var(--logo-sub); }

.site-header nav {
  display: flex;
  gap: 20px;
}

.site-header nav a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.95rem;
}

.site-header nav a:hover { color: var(--text); }

/* Hero */
.hero {
  background: linear-gradient(135deg, var(--hero-from), var(--hero-to));
  color: var(--hero-text);
  padding: 96px 0 104px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 48px;
}

.hero-mark { width: 240px; height: auto; }
.hero-mark .logo-ink { stroke: #ffffff; }

/* Below this width the mark would squeeze the headline onto a third line. */
@media (max-width: 1023px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-mark { display: none; }
}

.eyebrow {
  color: var(--teal);
  margin: 0 0 12px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.8rem;
  font-weight: 600;
}

.hero h1 {
  margin: 0;
  font-size: clamp(2.2rem, 6vw, 3.6rem);
  line-height: 1.1;
  text-wrap: balance; /* even line lengths: "The engineering behind / systems that just work." */
}

.lede {
  max-width: 56ch;
  font-size: 1.15rem;
  opacity: 0.88;
  margin: 20px 0 32px;
}

.actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.button {
  display: inline-block;
  padding: 12px 22px;
  border-radius: 8px;
  border: 1px solid currentColor;
  color: inherit;
  text-decoration: none;
  font-weight: 600;
}

.button.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-text);
}

.button:hover { filter: brightness(1.08); }

/* Sections */
.section { padding: 80px 0; }
.section.alt { background: var(--bg-alt); }

h2 {
  margin: 0 0 32px;
  font-size: 2rem;
}

/* Flex rather than grid so however many short cards remain share their row evenly. */
.grid {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
}

.grid > .card { flex: 1 1 240px; }

.card {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 24px;
  border-top: 3px solid var(--teal);
  background: var(--bg);
}

.card h3 { margin: 0 0 8px; font-size: 1.15rem; }
.card p { margin: 0; color: var(--muted); }

.card { display: flex; flex-direction: column; }
.card h3 a { color: inherit; text-decoration: none; }
.card h3 a:hover { color: var(--link); }
.card p { flex: 1; margin-bottom: 16px; }
.card .more { font-weight: 600; text-decoration: none; }
.card .more:hover { text-decoration: underline; }

/* Service pages */
.page-hero {
  background: linear-gradient(135deg, var(--hero-from), var(--hero-to));
  color: var(--hero-text);
  padding: 56px 0 48px;
}

.page-hero h1 {
  margin: 0;
  font-size: clamp(2rem, 5vw, 3rem);
  line-height: 1.15;
}

.breadcrumb {
  margin: 0 0 10px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.8rem;
  font-weight: 600;
}

.breadcrumb a { color: var(--teal); text-decoration: none; }
.breadcrumb a:hover { text-decoration: underline; }

.service-detail { font-size: 1.05rem; }
.service-detail > p { max-width: 75ch; margin: 0 0 1.1em; }
.service-detail h4 { margin: 1.8em 0 0.8em; font-size: 1.15rem; }

.feature-list {
  margin: 0 0 1.8em;
  padding-left: 1.2em;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 12px 40px;
  color: var(--muted);
}

.feature-list li::marker { color: var(--teal); }
.feature-list strong { color: var(--text); }

.service-detail .result {
  max-width: none;
  margin: 0;
  padding: 20px 24px;
  border-left: 4px solid var(--teal);
  background: var(--bg-alt);
  border-radius: 0 8px 8px 0;
}

.cta h2 { margin-bottom: 16px; }
.cta p { margin: 0 0 36px; }
.cta .button { overflow-wrap: anywhere; }
.cta h3 { margin: 0 0 12px; font-size: 1.1rem; }

.other-services {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.other-services a {
  display: inline-block;
  padding: 10px 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--bg);
  text-decoration: none;
  font-weight: 600;
}

.other-services a:hover { border-color: var(--teal); }

@media (max-width: 520px) {
  .feature-list { grid-template-columns: 1fr; }
  .page-hero { padding: 40px 0 36px; }
}

.prose {
  max-width: 68ch;
  font-size: 1.05rem;
}

.prose p { margin: 0 0 1.1em; }

.prose .tagline {
  margin: 1.6em 0 0;
  color: var(--link);
  font-weight: 700;
  font-size: 1.2rem;
  letter-spacing: 0.01em;
}

.contact p { color: var(--muted); margin: -16px 0 24px; }

.contact .button { overflow-wrap: anywhere; }

/* Footer */
.site-footer {
  border-top: 1px solid var(--line);
  padding: 24px 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.site-footer p { margin: 0; }

/* Error page */
.error-page {
  min-height: 60vh;
  display: grid;
  place-content: center;
  text-align: center;
  padding: 80px 20px;
}

.error-page h1 { font-size: 3rem; margin: 0; }

@media (max-width: 520px) {
  .site-header nav { gap: 14px; }
  .hero { padding: 64px 0 72px; }
  .section { padding: 56px 0; }
}