/* ============================================
   BlueLinqs — Design Tokens
   ============================================ */
:root {
  --bg: #FAFBFC;
  --surface: #FFFFFF;
  --ink: #0F1B24;
  --body: #4A5560;
  --muted: #8993A0;
  --accent: #1E4FD6;
  --accent-ink: #133399;
  --accent-tint: #EAF0FE;
  --line: #DDE2E8;
  --line-strong: #C4CBD4;

  --font-display: "Space Grotesk", "Helvetica Neue", Arial, sans-serif;
  --font-body: "Inter", "Helvetica Neue", Arial, sans-serif;
  --font-mono: "IBM Plex Mono", "Courier New", monospace;

  --max-w: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--body);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  color: var(--ink);
  margin: 0;
  font-weight: 600;
  letter-spacing: -0.01em;
}

p { margin: 0; }

a {
  color: inherit;
  text-decoration: none;
}

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

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

.mono {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

/* ============================================
   Focus & Motion
   ============================================ */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 2px;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}

/* ============================================
   Header / Nav
   ============================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(250, 251, 252, 0.88);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 32px;
  max-width: var(--max-w);
  margin: 0 auto;
}

.logo {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 19px;
  color: var(--ink);
  display: flex;
  align-items: center;
  gap: 8px;
}

.logo .dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
  display: inline-block;
}

.nav-links {
  display: flex;
  gap: 36px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links a {
  font-size: 14.5px;
  color: var(--body);
  position: relative;
  padding: 4px 0;
  transition: color 0.15s ease;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--ink);
}

.nav-links a.active::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -2px;
  height: 2px;
  background: var(--accent);
}

.nav-cta {
  font-size: 14px;
  font-weight: 600;
  color: var(--surface) !important;
  background: var(--ink);
  padding: 10px 20px;
  border-radius: 4px;
  transition: background 0.15s ease;
}

.nav-cta:hover { background: var(--accent); }

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--ink);
  margin: 5px 0;
}

/* ============================================
   Buttons
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 14.5px;
  padding: 13px 24px;
  border-radius: 4px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.15s ease;
}

.btn-primary {
  background: var(--ink);
  color: var(--surface);
}
.btn-primary:hover { background: var(--accent); }

.btn-ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--line-strong);
}
.btn-ghost:hover { border-color: var(--ink); }

/* ============================================
   Hero
   ============================================ */
.hero {
  padding: 88px 0 72px;
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 20px;
}

.eyebrow::before {
  content: "";
  width: 20px;
  height: 1px;
  background: var(--accent);
}

.hero h1 {
  font-size: clamp(34px, 4.4vw, 54px);
  line-height: 1.08;
  margin-bottom: 22px;
}

.hero .lede {
  font-size: 17.5px;
  color: var(--body);
  max-width: 46ch;
  margin-bottom: 32px;
}

.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.hero-art {
  aspect-ratio: 1 / 1;
  max-width: 460px;
  justify-self: end;
}

/* network graphic */
.route-line {
  fill: none;
  stroke: var(--line-strong);
  stroke-width: 1.4;
}

.route-pulse {
  fill: none;
  stroke: var(--accent);
  stroke-width: 2;
  stroke-linecap: round;
  stroke-dasharray: 6 220;
  animation: travel 6s linear infinite;
}

.route-pulse.delay1 { animation-delay: 1.4s; }
.route-pulse.delay2 { animation-delay: 3s; }
.route-pulse.delay3 { animation-delay: 4.4s; }

@keyframes travel {
  from { stroke-dashoffset: 0; }
  to { stroke-dashoffset: -226; }
}

.node {
  fill: var(--surface);
  stroke: var(--ink);
  stroke-width: 1.4;
}

.node.hub {
  fill: var(--accent);
  stroke: var(--accent);
}

/* ============================================
   Section scaffolding
   ============================================ */
section { padding: 88px 0; }
.section-border { border-bottom: 1px solid var(--line); }
.section-alt { background: var(--surface); }

.section-head {
  max-width: 640px;
  margin-bottom: 48px;
}

.section-head h2 {
  font-size: clamp(26px, 3vw, 36px);
  margin-bottom: 14px;
}

.section-head p {
  font-size: 16px;
  color: var(--body);
}

/* ============================================
   Practice area cards
   ============================================ */
.practice-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.practice-card {
  background: var(--surface);
  padding: 40px;
  position: relative;
  transition: background 0.2s ease;
}

.practice-card:hover { background: var(--accent-tint); }

.practice-card .tag {
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--accent);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 18px;
  display: block;
}

.practice-card h3 {
  font-size: 22px;
  margin-bottom: 14px;
}

.practice-card p {
  font-size: 15px;
  margin-bottom: 22px;
}

.practice-card .link-arrow {
  font-size: 14px;
  font-weight: 600;
  color: var(--ink);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.practice-card .link-arrow svg {
  width: 14px;
  height: 14px;
  transition: transform 0.15s ease;
}

.practice-card:hover .link-arrow svg { transform: translateX(3px); }

/* ============================================
   Capability manifest strip
   ============================================ */
.manifest {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.manifest-item {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: var(--body);
  border: 1px solid var(--line-strong);
  border-radius: 3px;
  padding: 9px 14px;
  background: var(--surface);
}

/* ============================================
   Capability blocks (services page)
   ============================================ */
.practice-block {
  padding: 64px 0;
}

.practice-block + .practice-block {
  border-top: 1px solid var(--line);
}

.practice-header {
  display: grid;
  grid-template-columns: 100px 1fr;
  gap: 24px;
  margin-bottom: 44px;
  align-items: baseline;
}

.practice-header .index {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--accent);
}

.practice-header h2 {
  font-size: clamp(24px, 3vw, 32px);
  margin-bottom: 10px;
}

.practice-header .desc {
  font-size: 16px;
  color: var(--body);
  max-width: 60ch;
}

.capability-list {
  display: grid;
  grid-template-columns: 100px 1fr;
  gap: 24px;
  border-top: 1px solid var(--line);
}

.capability-row {
  display: contents;
}

.capability-row .num {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--muted);
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
}

.capability-row .content {
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
}

.capability-row h4 {
  font-size: 16.5px;
  margin-bottom: 6px;
}

.capability-row p {
  font-size: 14.5px;
  color: var(--body);
  max-width: 62ch;
}

.capability-row .sub-tags {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 10px;
}

.capability-row .sub-tags span {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--accent-ink);
  background: var(--accent-tint);
  padding: 4px 9px;
  border-radius: 3px;
  letter-spacing: 0.03em;
}

.focus-note {
  margin-top: 32px;
  border-left: 2px solid var(--accent);
  padding: 4px 0 4px 20px;
  font-size: 15px;
  color: var(--ink);
}

/* ============================================
   Approach steps (about page)
   ============================================ */
.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.step {
  background: var(--surface);
  padding: 28px 24px;
}

.step .step-num {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--accent);
  margin-bottom: 14px;
}

.step h4 {
  font-size: 16px;
  margin-bottom: 8px;
}

.step p {
  font-size: 14px;
  color: var(--body);
}

/* ============================================
   Values grid
   ============================================ */
.values-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
}

.value h4 {
  font-size: 17px;
  margin-bottom: 10px;
}

.value p {
  font-size: 14.5px;
  color: var(--body);
}

.value .rule {
  width: 28px;
  height: 2px;
  background: var(--accent);
  margin-bottom: 16px;
}

/* ============================================
   CTA banner
   ============================================ */
.cta-banner {
  background: var(--ink);
  color: var(--bg);
  padding: 72px 0;
}

.cta-banner-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
}

.cta-banner h2 {
  color: var(--surface);
  font-size: clamp(24px, 3vw, 32px);
  max-width: 20ch;
}

.cta-banner .btn-primary {
  background: var(--accent);
}
.cta-banner .btn-primary:hover { background: #3D66E0; }

/* ============================================
   Contact page
   ============================================ */
.contact-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 64px;
}

.contact-info .item {
  margin-bottom: 32px;
}

.contact-info .item .mono {
  color: var(--accent);
  display: block;
  margin-bottom: 6px;
}

.contact-info .item p,
.contact-info .item a {
  font-size: 16px;
  color: var(--ink);
}

.form-group {
  margin-bottom: 22px;
}

.form-group label {
  display: block;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 8px;
}

.form-group input,
.form-group textarea {
  width: 100%;
  border: 1px solid var(--line-strong);
  border-radius: 4px;
  padding: 13px 14px;
  font-family: var(--font-body);
  font-size: 15px;
  color: var(--ink);
  background: var(--surface);
  transition: border-color 0.15s ease;
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--accent);
  outline: none;
}

.form-group textarea { resize: vertical; min-height: 120px; }

.form-note {
  font-size: 13px;
  color: var(--muted);
  margin-top: 6px;
}

/* ============================================
   About hero / intro
   ============================================ */
.about-hero {
  padding: 72px 0 64px;
  border-bottom: 1px solid var(--line);
}

.about-hero .lede {
  font-size: 18px;
  color: var(--ink);
  max-width: 62ch;
  margin-top: 20px;
}

.about-hero h1 { font-size: clamp(30px, 4vw, 44px); }

/* ============================================
   Footer
   ============================================ */
.site-footer {
  border-top: 1px solid var(--line);
  padding: 44px 0 36px;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-inner .logo { font-size: 16px; }

.footer-meta {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--muted);
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
}

.footer-meta a:hover { color: var(--ink); }

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 860px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-art { max-width: 320px; justify-self: start; margin-top: 8px; }
  .practice-grid { grid-template-columns: 1fr; }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .values-grid { grid-template-columns: 1fr; gap: 32px; }
  .contact-grid { grid-template-columns: 1fr; gap: 40px; }
  .practice-header { grid-template-columns: 1fr; gap: 8px; }
  .capability-list { grid-template-columns: 1fr; }
  .capability-row .num { padding-bottom: 4px; border-bottom: none; }
  .capability-row .content { padding-top: 0; }
}

@media (max-width: 700px) {
  .nav-links { display: none; }
  .nav-toggle { display: block; }
  .nav-cta { display: none; }
}

@media (max-width: 560px) {
  .wrap { padding: 0 20px; }
  .nav { padding: 18px 20px; }
  section { padding: 56px 0; }
  .hero { padding: 56px 0 48px; }
  .steps { grid-template-columns: 1fr; }
  .cta-banner-inner { flex-direction: column; align-items: flex-start; }
}