@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Sans:wght@400;500;600&family=IBM+Plex+Mono:wght@400;500&display=swap');

:root {
  --navy-950: #0A1A2C;
  --navy-800: #13304D;
  --blue-600: #2E5C87;
  --blue-500: #3E6D9A;
  --blue-400: #6E93B3;
  --grey-100: #EEF1F4;
  --grey-050: #F7F8FA;
  --white: #FFFFFF;
  --ink: #16232F;
  --line: #D7DEE5;
  --line-dark: rgba(255,255,255,0.14);
  --max: 1120px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--grey-050);
  color: var(--ink);
  font-family: 'IBM Plex Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

.mono {
  font-family: 'IBM Plex Mono', 'SFMono-Regular', Consolas, monospace;
}

a { color: inherit; }

.wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 32px;
}

/* ---------- Header ---------- */

header.site {
  background: var(--navy-950);
  border-bottom: 1px solid var(--line-dark);
}

header.site .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}

.brand {
  display: flex;
  align-items: baseline;
  gap: 10px;
  text-decoration: none;
  color: var(--white);
}

.brand .mark {
  width: 9px;
  height: 9px;
  background: var(--blue-400);
  display: inline-block;
}

.brand-name {
  font-size: 17px;
  font-weight: 600;
  letter-spacing: 0.01em;
}

.brand-suffix {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 12px;
  color: var(--blue-400);
}

nav.primary {
  display: flex;
  gap: 36px;
}

nav.primary a {
  color: rgba(255,255,255,0.72);
  text-decoration: none;
  font-size: 14.5px;
  transition: color 0.15s ease;
}

nav.primary a:hover,
nav.primary a[aria-current="page"] {
  color: var(--white);
}

nav.primary a[aria-current="page"] {
  border-bottom: 1px solid var(--blue-400);
  padding-bottom: 4px;
}

.nav-contact {
  border: 1px solid rgba(255,255,255,0.28);
  padding: 9px 18px;
  font-size: 14px;
  text-decoration: none;
  color: var(--white);
  transition: background 0.15s ease, border-color 0.15s ease;
}

.nav-contact:hover {
  background: rgba(255,255,255,0.08);
  border-color: rgba(255,255,255,0.5);
}

/* ---------- Hero ---------- */

.hero {
  position: relative;
  background: var(--navy-950);
  color: var(--white);
  overflow: hidden;
  border-bottom: 1px solid var(--line-dark);
}

.hero-grid-bg {
  position: absolute;
  inset: 0;
  opacity: 0.5;
}

.hero .wrap {
  position: relative;
  padding: 92px 32px 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
}

.hero-eyebrow {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 12.5px;
  color: var(--blue-400);
  margin: 0 0 22px;
}

.hero h1 {
  font-size: 46px;
  line-height: 1.15;
  font-weight: 500;
  max-width: 15ch;
  margin: 0 0 24px;
  letter-spacing: -0.01em;
}

.hero p.lede {
  max-width: 46ch;
  font-size: 17px;
  color: rgba(255,255,255,0.78);
  margin: 0 0 36px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  margin-bottom: 72px;
}

.btn {
  display: inline-block;
  padding: 13px 24px;
  font-size: 14.5px;
  text-decoration: none;
  border: 1px solid transparent;
  transition: opacity 0.15s ease, background 0.15s ease;
}

.btn-primary {
  background: var(--blue-500);
  color: var(--white);
}

.btn-primary:hover { background: var(--blue-600); }

.btn-ghost {
  border-color: rgba(255,255,255,0.3);
  color: var(--white);
}

.btn-ghost:hover { background: rgba(255,255,255,0.08); }

.blueprint {
  width: 100%;
  height: auto;
  display: block;
}

.blueprint path,
.blueprint line,
.blueprint circle {
  stroke-dasharray: 1400;
  stroke-dashoffset: 1400;
  animation: draw 2.4s ease forwards;
}

@keyframes draw {
  to { stroke-dashoffset: 0; }
}

@media (prefers-reduced-motion: reduce) {
  .blueprint path, .blueprint line, .blueprint circle {
    animation: none;
    stroke-dashoffset: 0;
  }
}

/* ---------- Stat strip ---------- */

.stat-strip {
  background: var(--navy-800);
  border-bottom: 1px solid var(--line-dark);
}

.stat-strip .wrap {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}

.stat {
  padding: 28px 32px;
  border-left: 1px solid var(--line-dark);
}

.stat:first-child { border-left: none; }

.stat .value {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 26px;
  color: var(--white);
  display: block;
  margin-bottom: 6px;
}

.stat .label {
  font-size: 13px;
  color: rgba(255,255,255,0.6);
}

/* ---------- Sections ---------- */

section { padding: 88px 0; }

.section-head {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 48px;
  margin-bottom: 56px;
  align-items: baseline;
}

.section-head h2 {
  font-size: 28px;
  font-weight: 500;
  margin: 0;
  letter-spacing: -0.01em;
}

.section-head .index {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 13px;
  color: var(--blue-600);
  margin: 0 0 10px;
}

.section-head p {
  margin: 0;
  color: #435364;
  max-width: 52ch;
}

.services {
  border-top: 1px solid var(--line);
}

.service-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  border-top: 1px solid var(--line);
}

.service {
  padding: 32px 0;
  border-bottom: 1px solid var(--line);
  padding-right: 40px;
}

.service:nth-child(odd) {
  border-right: 1px solid var(--line);
  padding-right: 40px;
}

.service:nth-child(even) { padding-left: 40px; }

.service .num {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 12.5px;
  color: var(--blue-600);
  display: block;
  margin-bottom: 14px;
}

.service h3 {
  font-size: 18px;
  font-weight: 600;
  margin: 0 0 10px;
}

.service p {
  margin: 0;
  color: #435364;
  font-size: 15px;
  max-width: 42ch;
}

.approach {
  background: var(--grey-100);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.approach-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 28px;
}

.approach-list li {
  display: grid;
  grid-template-columns: 90px 1fr;
  gap: 24px;
  padding-bottom: 28px;
  border-bottom: 1px solid var(--line);
}

.approach-list li:last-child { border-bottom: none; padding-bottom: 0; }

.approach-list .tag {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 12.5px;
  color: var(--blue-600);
  padding-top: 2px;
}

.approach-list h4 {
  margin: 0 0 8px;
  font-size: 16.5px;
  font-weight: 600;
}

.approach-list p {
  margin: 0;
  color: #435364;
  font-size: 15px;
}

.cta {
  background: var(--navy-950);
  color: var(--white);
}

.cta .wrap {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 48px;
  align-items: center;
}

.cta h2 {
  font-size: 26px;
  font-weight: 500;
  margin: 0 0 14px;
  max-width: 18ch;
}

.cta p {
  margin: 0;
  color: rgba(255,255,255,0.72);
  max-width: 40ch;
}

.cta-actions {
  display: flex;
  flex-direction: column;
  gap: 12px;
  align-items: flex-start;
}

.cta-actions .contact-line {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 14px;
  color: var(--blue-400);
}

/* ---------- About page specifics ---------- */

.page-header {
  background: var(--navy-950);
  color: var(--white);
  border-bottom: 1px solid var(--line-dark);
  padding: 72px 0 56px;
}

.page-header .index {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 12.5px;
  color: var(--blue-400);
  margin: 0 0 18px;
}

.page-header h1 {
  font-size: 38px;
  font-weight: 500;
  margin: 0 0 18px;
  max-width: 20ch;
  letter-spacing: -0.01em;
}

.page-header p {
  max-width: 56ch;
  color: rgba(255,255,255,0.75);
  font-size: 16.5px;
  margin: 0;
}

.prose-block {
  display: grid;
  grid-template-columns: 1fr 1.6fr;
  gap: 48px;
  padding: 76px 0;
  border-bottom: 1px solid var(--line);
}

.prose-block .index {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 13px;
  color: var(--blue-600);
  margin: 0;
}

.prose-block .body p {
  margin: 0 0 18px;
  color: #2B3846;
  max-width: 62ch;
}

.prose-block .body p:last-child { margin-bottom: 0; }

.figures {
  border-bottom: 1px solid var(--line);
  background: var(--grey-100);
}

.figure-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.figure {
  background: var(--grey-100);
  padding: 32px;
}

.figure .value {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 30px;
  color: var(--navy-950);
  display: block;
  margin-bottom: 8px;
}

.figure .label {
  font-size: 13.5px;
  color: #56636E;
}

.principles-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0;
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.principle {
  padding: 36px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.principle h4 {
  margin: 0 0 10px;
  font-size: 16.5px;
  font-weight: 600;
}

.principle p {
  margin: 0;
  color: #435364;
  font-size: 15px;
}

/* ---------- Footer ---------- */

footer.site {
  background: var(--navy-950);
  color: rgba(255,255,255,0.6);
  border-top: 1px solid var(--line-dark);
}

footer.site .wrap {
  padding: 48px 32px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13.5px;
}

footer.site nav {
  display: flex;
  gap: 28px;
}

footer.site nav a {
  color: rgba(255,255,255,0.6);
  text-decoration: none;
}

footer.site nav a:hover { color: var(--white); }

/* ---------- Responsive ---------- */

@media (max-width: 860px) {
  .hero h1 { font-size: 34px; }
  .stat-strip .wrap { grid-template-columns: repeat(2, 1fr); }
  .stat:nth-child(3) { border-left: none; }
  .section-head { grid-template-columns: 1fr; gap: 16px; }
  .service-list { grid-template-columns: 1fr; }
  .service:nth-child(odd) { border-right: none; padding-right: 0; }
  .service:nth-child(even) { padding-left: 0; }
  .approach-list li { grid-template-columns: 1fr; gap: 8px; }
  .cta .wrap { grid-template-columns: 1fr; }
  .prose-block { grid-template-columns: 1fr; }
  .figure-grid { grid-template-columns: 1fr; }
  .principles-grid { grid-template-columns: 1fr; }
  nav.primary { display: none; }
  footer.site .wrap { flex-direction: column; gap: 16px; align-items: flex-start; }
}

:focus-visible {
  outline: 2px solid var(--blue-400);
  outline-offset: 2px;
}