/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

/* ---------- Tokens ---------- */
:root {
  --ink: #0B2038;
  --navy: #0C447C;
  --teal: #1D9E75;
  --teal-tint: #EAF6F1;
  --navy-tint: #EAF1F8;
  --paper: #FFFFFF;
  --muted: #55677A;
  --radius: 20px;
  --max-width: 1120px;

  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'IBM Plex Sans', sans-serif;
  --font-mono: 'IBM Plex Mono', monospace;
}

/* ---------- Base ---------- */
body {
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--paper);
  line-height: 1.6;
  font-size: 17px;
  -webkit-font-smoothing: antialiased;
}

.wrap {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 28px;
}

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

h1 { font-size: 56px; line-height: 1.08; }
h2 { font-size: 34px; line-height: 1.2; margin-bottom: 20px; }
h3 { font-size: 20px; line-height: 1.3; margin-bottom: 8px; color: var(--ink); }

.eyebrow {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--teal);
  margin-bottom: 14px;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 15px;
  padding: 12px 22px;
  border-radius: 12px;
  border: 1.5px solid transparent;
  transition: transform 0.15s ease, background 0.15s ease, border-color 0.15s ease;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-2px); }
.btn:focus-visible { outline: 2px solid var(--teal); outline-offset: 2px; }

.btn-primary { background: var(--teal); color: #ffffff; }
.btn-primary:hover { background: #17835F; }

.btn-ghost { background: transparent; color: var(--navy); border-color: var(--navy); }
.btn-ghost:hover { background: var(--navy-tint); }

.btn-small { padding: 8px 16px; font-size: 14px; }
.btn-large { padding: 16px 28px; font-size: 17px; }

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid #E7ECF1;
  z-index: 10;
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 16px;
  padding-bottom: 16px;
}
.brand { display: flex; align-items: center; gap: 10px; }
.brand-name {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 18px;
  color: var(--ink);
}
.header-nav { display: flex; align-items: center; gap: 20px; font-size: 15px; }
.header-nav a:not(.btn) { color: var(--muted); font-weight: 500; }
.header-nav a:not(.btn):hover { color: var(--navy); }

/* ---------- Hero ---------- */
.hero { padding: 88px 0 96px; }
.hero-inner {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
}
.hero-sub {
  font-size: 18px;
  color: var(--muted);
  max-width: 46ch;
  margin: 22px 0 32px;
}
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }

.hero-mark { display: flex; justify-content: center; }
.hero-mark-svg { width: 100%; max-width: 340px; }
.mark-square, .mark-circle { opacity: 1; transform: translate(0, 0); }

@media (prefers-reduced-motion: no-preference) {
  .mark-square {
    animation: mark-in-square 0.7s cubic-bezier(0.2, 0.7, 0.2, 1) both;
  }
  .mark-circle {
    animation: mark-in-circle 0.7s 0.15s cubic-bezier(0.2, 0.7, 0.2, 1) both;
  }
}
@keyframes mark-in-square {
  from { opacity: 0; transform: translate(-24px, -24px); }
  to   { opacity: 1; transform: translate(0, 0); }
}
@keyframes mark-in-circle {
  from { opacity: 0; transform: translate(24px, 24px); }
  to   { opacity: 1; transform: translate(0, 0); }
}

/* ---------- Services ---------- */
.services { padding: 80px 0; background: var(--teal-tint); }
.service-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 40px;
}
.service-card {
  background: var(--paper);
  border-radius: var(--radius);
  padding: 28px 26px;
  border: 1px solid #DCE9E3;
  transition: transform 0.18s ease, border-color 0.18s ease;
}
.service-card:hover { transform: translateY(-4px); border-color: var(--teal); }
.service-card p { color: var(--muted); font-size: 15.5px; }

.service-icon { display: block; margin-bottom: 16px; height: 32px; }
.icon-sq, .icon-circ, .icon-net, .icon-cloud, .icon-chip { display: inline-block; }

.icon-sq { width: 26px; height: 26px; border-radius: 7px; background: var(--navy); }
.icon-sq--dot { position: relative; }
.icon-sq--dot::after {
  content: ""; position: absolute; width: 12px; height: 12px; border-radius: 50%;
  background: var(--teal); right: -6px; bottom: -6px;
}
.icon-circ { width: 26px; height: 26px; border-radius: 50%; background: var(--teal); }

.icon-net {
  width: 30px; height: 26px; position: relative; display: inline-block;
}
.icon-net::before, .icon-net::after {
  content: ""; position: absolute; border-radius: 50%; background: var(--navy);
}
.icon-net::before { width: 10px; height: 10px; left: 0; top: 8px; }
.icon-net::after { width: 10px; height: 10px; right: 0; top: 8px; background: var(--teal); }

.icon-cloud {
  width: 30px; height: 20px; border-radius: 12px;
  background: var(--navy-tint); border: 2px solid var(--navy);
}
.icon-chip {
  width: 26px; height: 26px; border-radius: 6px; border: 2px solid var(--navy);
  background: repeating-linear-gradient(45deg, var(--teal-tint), var(--teal-tint) 4px, transparent 4px, transparent 8px);
}

/* ---------- Experience ---------- */
.experience { padding: 88px 0; }
.experience-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: start;
}
.experience-copy { color: var(--muted); margin-top: 18px; font-size: 16px; }
.tag-list { display: flex; flex-wrap: wrap; gap: 10px; align-content: flex-start; }
.tag-list li {
  font-family: var(--font-mono);
  font-size: 13.5px;
  padding: 8px 14px;
  border-radius: 999px;
  background: var(--navy-tint);
  color: var(--navy);
}

/* ---------- Service area ---------- */
.service-area { padding: 88px 0; background: var(--navy-tint); }
.network-diagram { margin: 44px 0 8px; }
.network-svg { width: 100%; height: auto; }

.link { stroke-width: 2; fill: none; }
.link-solid { stroke: var(--navy); opacity: 0.55; }
.link-dashed { stroke: var(--muted); stroke-dasharray: 6 6; opacity: 0.6; }

.node-center circle { fill: var(--navy); }
.node-remote circle { fill: var(--teal); }
.node-town circle { fill: var(--paper); stroke: var(--navy); stroke-width: 2; }

.node-label {
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 500;
  fill: var(--ink);
}
.node-label--on { fill: #ffffff; font-family: var(--font-mono); font-size: 15px; }

.service-area-list { display: none; }

@media (max-width: 720px) {
  .network-diagram { display: none; }
  .service-area-list { display: block; margin-top: 32px; font-size: 16px; }
  .service-area-list li { margin-bottom: 10px; color: var(--ink); }
}

/* ---------- Contact ---------- */
.contact { padding: 96px 0; text-align: center; }
.contact-inner { max-width: 640px; margin: 0 auto; }
.contact-sub { color: var(--muted); font-size: 17px; margin: 16px 0 32px; }
.contact-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* ---------- Footer ---------- */
.site-footer { padding: 32px 0; border-top: 1px solid #E7ECF1; }
.footer-inner { display: flex; align-items: center; gap: 10px; }
.footer-inner p { color: var(--muted); font-size: 14px; }

/* ---------- Responsive ---------- */
@media (max-width: 860px) {
  h1 { font-size: 42px; }
  h2 { font-size: 28px; }
  .hero-inner { grid-template-columns: 1fr; }
  .hero-mark { order: -1; max-width: 220px; margin: 0 auto 12px; }
  .experience-inner { grid-template-columns: 1fr; }
  .service-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 560px) {
  .wrap { padding: 0 20px; }
  h1 { font-size: 34px; }
  .service-grid { grid-template-columns: 1fr; }
  .header-nav a:not(.btn) { display: none; }
  .hero { padding: 56px 0 64px; }
  .services, .experience, .service-area, .contact { padding: 64px 0; }
}

/* ---------- Motion & accessibility ---------- */
@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;
  }
}
:focus-visible { outline: 2px solid var(--teal); outline-offset: 2px; }