:root {
  --ink: #071521;
  --ink-soft: #0d2332;
  --paper: #f5f8f9;
  --white: #ffffff;
  --slate: #526570;
  --line: #d5e0e4;
  --blue: #2b73ff;
  --teal: #25c4b8;
  --focus: #ffbf47;
  --max: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: "Segoe UI Variable", "Segoe UI", system-ui, sans-serif;
  font-size: 1rem;
  line-height: 1.65;
  text-rendering: optimizeLegibility;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-underline-offset: .2em; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 3px solid var(--focus); outline-offset: 4px; }
.skip-link { position: fixed; left: 1rem; top: -5rem; z-index: 100; padding: .75rem 1rem; background: var(--white); color: var(--ink); }
.skip-link:focus { top: 1rem; }
.shell { width: min(calc(100% - 2.5rem), var(--max)); margin-inline: auto; }

.site-header { position: relative; z-index: 10; background: var(--ink); color: var(--white); border-bottom: 1px solid rgba(255,255,255,.13); }
.nav { min-height: 78px; display: flex; align-items: center; justify-content: space-between; gap: 2rem; }
.brand { display: inline-flex; align-items: center; gap: .7rem; color: var(--white); text-decoration: none; font-weight: 760; letter-spacing: -.03em; font-size: 1.22rem; }
.brand-mark { width: 30px; height: 30px; border: 1px solid rgba(255,255,255,.55); border-radius: 50%; position: relative; }
.brand-mark::before, .brand-mark::after { content: ""; position: absolute; border-radius: 50%; background: var(--teal); }
.brand-mark::before { width: 7px; height: 7px; left: 5px; top: 11px; }
.brand-mark::after { width: 5px; height: 5px; right: 5px; top: 7px; box-shadow: -3px 12px 0 var(--blue); }
.nav-toggle { display: none; border: 1px solid rgba(255,255,255,.35); border-radius: 4px; background: transparent; color: var(--white); padding: .55rem .75rem; font: inherit; }
.nav-links { display: flex; align-items: center; gap: 1.55rem; margin: 0; padding: 0; list-style: none; }
.nav-links a { color: rgba(255,255,255,.78); text-decoration: none; font-size: .95rem; }
.nav-links a:hover, .nav-links a[aria-current="page"] { color: var(--white); }
.nav-links .nav-contact { border: 1px solid rgba(255,255,255,.35); border-radius: 4px; padding: .55rem .85rem; }

.hero { overflow: hidden; color: var(--white); background: var(--ink); }
.hero-grid { min-height: 610px; display: grid; grid-template-columns: minmax(0, 1.08fr) minmax(330px, .72fr); gap: clamp(3rem, 8vw, 8rem); align-items: center; padding-block: clamp(5rem, 10vw, 8.5rem); }
.hero-copy { position: relative; z-index: 2; }
.kicker { margin: 0 0 1.3rem; color: #92aaaF; font-size: .9rem; font-weight: 650; }
h1, h2, h3 { margin-top: 0; line-height: 1.08; letter-spacing: -.045em; }
h1 { max-width: 760px; margin-bottom: 1.6rem; font-size: clamp(3.1rem, 7.5vw, 6.6rem); font-weight: 650; }
.hero p { max-width: 650px; margin: 0 0 2.2rem; color: #c4d2d8; font-size: clamp(1.08rem, 2vw, 1.3rem); }
.actions { display: flex; flex-wrap: wrap; gap: .85rem; }
.button { display: inline-flex; min-height: 48px; align-items: center; justify-content: center; border: 1px solid transparent; border-radius: 4px; padding: .7rem 1.1rem; font-weight: 700; text-decoration: none; }
.button-primary { background: var(--teal); color: var(--ink); }
.button-secondary { border-color: rgba(255,255,255,.35); color: var(--white); }
.signal-map { position: relative; min-height: 390px; border-left: 1px solid rgba(255,255,255,.16); border-bottom: 1px solid rgba(255,255,255,.16); opacity: .96; }
.signal-map::before { content: ""; position: absolute; inset: 18% 8% 12% 14%; border: 1px solid rgba(37,196,184,.32); border-radius: 50% 50% 45% 55%; transform: rotate(-12deg); }
.signal-map::after { content: ""; position: absolute; width: 72%; height: 1px; left: 8%; top: 48%; background: linear-gradient(90deg, transparent, var(--blue), var(--teal)); transform: rotate(-19deg); transform-origin: left; }
.node { position: absolute; width: 11px; height: 11px; border: 2px solid var(--ink); border-radius: 50%; background: var(--teal); box-shadow: 0 0 0 1px rgba(255,255,255,.5); }
.node-a { left: 15%; bottom: 24%; }.node-b { left: 46%; top: 39%; }.node-c { right: 12%; top: 22%; background: var(--blue); }
.map-note { position: absolute; right: 0; bottom: 0; max-width: 210px; margin: 0; padding: 1rem 0 1rem 1.2rem; border-left: 1px solid var(--teal); color: #b9cbd2; font-size: .88rem; }

.section { padding-block: clamp(4.5rem, 9vw, 8rem); }
.section-white { background: var(--white); }
.section-dark { background: var(--ink-soft); color: var(--white); }
.section-head { display: grid; grid-template-columns: minmax(180px, .38fr) minmax(0, 1fr); gap: clamp(2rem, 7vw, 7rem); align-items: start; margin-bottom: clamp(2.6rem, 6vw, 5rem); }
.section-head p { max-width: 660px; margin: .35rem 0 0; color: var(--slate); font-size: 1.12rem; }
.section-dark .section-head p { color: #b9cbd2; }
.section-label { margin: .4rem 0 0; color: var(--slate); font-weight: 700; }
.section-dark .section-label { color: #8ea6af; }
h2 { max-width: 820px; margin-bottom: 1.2rem; font-size: clamp(2.25rem, 5vw, 4.5rem); font-weight: 620; }
h3 { margin-bottom: .8rem; font-size: 1.35rem; letter-spacing: -.025em; }
.service-list { border-top: 1px solid var(--line); }
.service-row { display: grid; grid-template-columns: minmax(220px, .72fr) minmax(0, 1fr); gap: clamp(2rem, 8vw, 8rem); padding-block: 2rem; border-bottom: 1px solid var(--line); }
.service-row p { max-width: 650px; margin: 0; color: var(--slate); }
.principles { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: rgba(255,255,255,.16); border: 1px solid rgba(255,255,255,.16); }
.principle { min-height: 245px; padding: clamp(1.6rem, 4vw, 2.7rem); background: var(--ink-soft); }
.principle p { color: #b9cbd2; }
.rule { width: 42px; height: 3px; margin-bottom: 2rem; background: var(--teal); }
.cta-band { display: flex; justify-content: space-between; gap: 2rem; align-items: center; padding-block: clamp(3.2rem, 6vw, 5rem); }
.cta-band h2 { max-width: 740px; margin: 0; font-size: clamp(2rem, 4vw, 3.8rem); }

.page-hero { background: var(--ink); color: var(--white); }
.page-hero .shell { padding-block: clamp(4.5rem, 9vw, 8rem); }
.page-hero h1 { max-width: 900px; font-size: clamp(3rem, 7vw, 6rem); }
.page-hero p { max-width: 700px; margin: 0; color: #c4d2d8; font-size: 1.2rem; }
.content-grid { display: grid; grid-template-columns: minmax(190px, .34fr) minmax(0, 1fr); gap: clamp(2.5rem, 8vw, 8rem); }
.content-main { max-width: 780px; }
.content-main h2 { margin-top: 3.6rem; font-size: clamp(1.8rem, 4vw, 2.8rem); }
.content-main h2:first-child { margin-top: 0; }
.content-main h3 { margin-top: 2.2rem; }
.content-main p, .content-main li { color: #314650; }
.content-main ul { padding-left: 1.2rem; }
.meta-box { position: sticky; top: 2rem; align-self: start; padding-top: .5rem; border-top: 3px solid var(--teal); color: var(--slate); }
.meta-box strong { color: var(--ink); }
.contact-card { padding: clamp(1.5rem, 4vw, 2.8rem); border: 1px solid var(--line); background: var(--white); }
.contact-card dl { display: grid; grid-template-columns: 130px 1fr; gap: .8rem 1.4rem; margin: 0; }
.contact-card dt { color: var(--slate); }.contact-card dd { margin: 0; font-weight: 650; overflow-wrap: anywhere; }
.notice { margin-block: 2rem; padding: 1rem 1.2rem; border-left: 3px solid var(--blue); background: #edf4ff; }

.site-footer { background: #041019; color: #a9bbc3; }
.footer-grid { display: grid; grid-template-columns: 1.1fr .7fr .7fr; gap: 3rem; padding-block: 4.5rem 3rem; }
.footer-brand { color: var(--white); font-size: 1.25rem; font-weight: 750; }
.footer-grid p { max-width: 430px; }
.footer-links { margin: 0; padding: 0; list-style: none; }
.footer-links li + li { margin-top: .5rem; }
.footer-links a { color: #c7d4d9; }
.footer-title { color: var(--white); font-weight: 700; }
.footer-bottom { padding-block: 1.2rem 2rem; border-top: 1px solid rgba(255,255,255,.12); font-size: .9rem; }

@media (max-width: 820px) {
  .nav-toggle { display: inline-flex; }
  .nav-links { display: none; position: absolute; inset: 78px 0 auto; flex-direction: column; align-items: stretch; gap: 0; padding: 1rem 1.25rem 1.5rem; background: var(--ink); border-top: 1px solid rgba(255,255,255,.12); }
  .nav-links.is-open { display: flex; }
  .nav-links a { display: block; padding: .8rem 0; }
  .nav-links .nav-contact { border: 0; padding: .8rem 0; }
  .hero-grid { grid-template-columns: 1fr; min-height: 0; gap: 3rem; }
  .signal-map { min-height: 280px; }
  .section-head, .content-grid { grid-template-columns: 1fr; gap: 1.5rem; }
  .meta-box { position: static; }
  .principles { grid-template-columns: 1fr; }
  .service-row { grid-template-columns: 1fr; gap: .4rem; }
  .cta-band { align-items: flex-start; flex-direction: column; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-intro { grid-column: 1 / -1; }
}

@media (max-width: 520px) {
  .shell { width: min(calc(100% - 1.5rem), var(--max)); }
  .hero-grid { padding-block: 4rem; }
  h1 { font-size: clamp(2.75rem, 15vw, 4.2rem); }
  .signal-map { min-height: 220px; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-intro { grid-column: auto; }
  .contact-card dl { grid-template-columns: 1fr; gap: .15rem; }
  .contact-card dd + dt { margin-top: .75rem; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}