@import url('https://fonts.googleapis.com/css2?family=DM+Mono:wght@400;500&family=Manrope:wght@400;500;600;700;800&display=swap');

:root {
  --navy-950: #001633;
  --navy-900: #002451;
  --navy-800: #07366c;
  --cyan-600: #008bf0;
  --cyan-500: #00a8ff;
  --cyan-100: #dff4ff;
  --ink: #061a36;
  --muted: #536276;
  --line: #d9e2ec;
  --soft: #f4f8fc;
  --white: #ffffff;
  --max: 1240px;
  --radius-sm: 8px;
  --radius-md: 18px;
  --shadow: 0 24px 70px rgba(0, 36, 81, 0.12);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--white);
  font-family: 'Manrope', system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
body.menu-open { overflow: hidden; }
a { color: inherit; }
img, svg { max-width: 100%; }
button, input, select, textarea { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
:focus-visible { outline: 3px solid var(--cyan-500); outline-offset: 4px; }

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 100;
  padding: 10px 14px;
  transform: translateY(-160%);
  color: var(--white);
  background: var(--navy-950);
}
.skip-link:focus { transform: translateY(0); }

.container { width: min(calc(100% - 48px), var(--max)); margin-inline: auto; }
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid rgba(217, 226, 236, 0.85);
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(18px);
}
.header-inner {
  min-height: 88px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}
.brand { display: inline-flex; align-items: center; flex: 0 0 auto; }
.brand img { display: block; width: 235px; height: auto; }
.nav-list { display: flex; align-items: center; gap: 36px; margin: 0; padding: 0; list-style: none; }
.nav-list a {
  position: relative;
  color: var(--navy-950);
  font-size: 0.9rem;
  font-weight: 600;
  text-decoration: none;
}
.nav-list a.button-dark { color: var(--white); }
.nav-list a:not(.button)::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -9px;
  width: 100%;
  height: 2px;
  transform: scaleX(0);
  transform-origin: right;
  background: var(--cyan-500);
  transition: transform 220ms ease;
}
.nav-list a:hover::after,
.nav-list a[aria-current='page']::after { transform: scaleX(1); transform-origin: left; }
.menu-button {
  display: none;
  width: 46px;
  height: 46px;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: var(--white);
}
.menu-button span,
.menu-button::before,
.menu-button::after {
  content: '';
  display: block;
  width: 20px;
  height: 2px;
  margin: 4px auto;
  background: var(--navy-950);
  transition: 180ms ease;
}
.menu-button[aria-expanded='true'] span { opacity: 0; }
.menu-button[aria-expanded='true']::before { transform: translateY(6px) rotate(45deg); }
.menu-button[aria-expanded='true']::after { transform: translateY(-6px) rotate(-45deg); }

.button {
  display: inline-flex;
  min-height: 52px;
  align-items: center;
  justify-content: center;
  gap: 14px;
  padding: 0 22px;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  font-size: 0.92rem;
  font-weight: 700;
  text-decoration: none;
  transition: transform 180ms ease, box-shadow 180ms ease, background 180ms ease;
}
.button:hover { transform: translateY(-2px); }
.button-primary { color: var(--white); background: var(--cyan-600); box-shadow: 0 12px 30px rgba(0, 139, 240, 0.23); }
.button-primary:hover { background: #007bd6; box-shadow: 0 16px 35px rgba(0, 139, 240, 0.28); }
.button-dark { color: var(--white); background: var(--navy-950); }
.button-light { color: var(--navy-950); background: var(--white); }
.button-arrow { font-size: 1.4rem; font-weight: 400; }
.text-link { color: var(--cyan-600); font-weight: 700; text-underline-offset: 6px; }

.hero { min-height: calc(100vh - 160px); display: grid; align-items: center; overflow: hidden; }
.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.06fr) minmax(420px, 0.94fr);
  gap: clamp(42px, 7vw, 100px);
  align-items: center;
  padding-block: 72px 92px;
}
.hero h1,
.page-hero h1 {
  max-width: 820px;
  margin: 0;
  color: var(--navy-950);
  font-size: clamp(3.3rem, 7vw, 6.8rem);
  line-height: 0.98;
  letter-spacing: -0.065em;
}
.hero h1 { font-size: clamp(3.3rem, 6.1vw, 6rem); }
.hero-brand h1 { max-width: 760px; font-size: clamp(3rem, 5.5vw, 5.45rem); }
.hero h1 em { color: var(--cyan-600); font-style: normal; }
.hero-copy > p {
  max-width: 650px;
  margin: 30px 0 0;
  color: var(--muted);
  font-size: clamp(1.05rem, 1.45vw, 1.3rem);
}
.hero-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 28px; margin-top: 40px; }
.hero-visual { position: relative; min-height: 560px; display: grid; place-items: center; }
.signal-stage {
  position: relative;
  width: min(100%, 570px);
  aspect-ratio: 1 / 1;
  display: grid;
  place-items: center;
}
.signal-stage::before {
  content: '';
  position: absolute;
  inset: 11%;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0,168,255,.10), transparent 62%);
}
.signal-svg { position: relative; width: 100%; overflow: visible; }
.signal-arc { fill: none; stroke: var(--navy-800); stroke-width: 2; stroke-linecap: round; opacity: .26; }
.signal-arc.accent { stroke: var(--cyan-500); opacity: .72; }
.signal-node { fill: var(--cyan-500); filter: drop-shadow(0 0 8px rgba(0,168,255,.45)); }
.signal-pulse { animation: pulse 3.2s ease-in-out infinite; transform-origin: center; }
.signal-pulse:nth-of-type(2n) { animation-delay: -1.4s; }
.signal-mark { filter: drop-shadow(0 18px 24px rgba(0,36,81,.15)); }

@keyframes pulse { 0%,100% { opacity: .35; transform: scale(.92); } 50% { opacity: 1; transform: scale(1.12); } }

.brand-turn { display: grid; grid-template-columns: 1fr 1fr; }
.brand-turn-side { min-height: 520px; display: flex; align-items: center; padding: clamp(64px, 8vw, 120px); }
.brand-turn-before { color: var(--navy-950); background: #e8eef4; }
.brand-turn-after { color: var(--white); background: var(--cyan-600); }
.brand-turn-content { width: min(100%, 560px); }
.brand-turn-side .mono { display: block; margin-bottom: 30px; }
.brand-turn-after .mono { color: var(--white); }
.brand-turn-side h2 { margin: 0; font-size: clamp(2.6rem, 5vw, 5.2rem); line-height: 1.02; letter-spacing: -.055em; }
.brand-turn-side p { max-width: 470px; margin: 28px 0 0; font-size: 1.06rem; }
.brand-turn-before p { color: var(--muted); }
.brand-turn-after p { color: rgba(255,255,255,.88); }

.section { padding-block: clamp(80px, 11vw, 150px); }
.section-soft { background: var(--soft); }
.section-dark { color: var(--white); background: var(--navy-950); }
.section-heading { display: grid; grid-template-columns: .72fr 1.28fr; gap: 64px; align-items: start; margin-bottom: 70px; }
.section-index,
.mono {
  color: var(--cyan-600);
  font-family: 'DM Mono', monospace;
  font-size: .78rem;
  letter-spacing: .12em;
  text-transform: uppercase;
}
.section-title {
  max-width: 820px;
  margin: 0;
  color: var(--navy-950);
  font-size: clamp(2.3rem, 4.8vw, 4.7rem);
  line-height: 1.05;
  letter-spacing: -.045em;
}
.section-dark .section-title { color: var(--white); }
.section-intro { max-width: 680px; margin: 24px 0 0; color: var(--muted); font-size: 1.08rem; }
.section-dark .section-intro { color: #b9c9da; }

.service-list { border-top: 1px solid var(--line); }
.service-row {
  display: grid;
  grid-template-columns: 90px minmax(230px, .82fr) minmax(300px, 1.18fr) 42px;
  gap: 34px;
  align-items: center;
  padding: 38px 0;
  border-bottom: 1px solid var(--line);
  text-decoration: none;
  transition: padding 220ms ease, background 220ms ease;
}
.service-row:hover { padding-inline: 18px; background: var(--soft); }
.section-soft .service-row:hover { background: var(--white); }
.service-number { color: var(--cyan-600); font-family: 'DM Mono', monospace; font-size: .8rem; }
.service-row h3 { margin: 0; color: var(--navy-950); font-size: clamp(1.35rem, 2vw, 1.9rem); line-height: 1.2; }
.service-row p { margin: 0; color: var(--muted); }
.service-arrow { color: var(--cyan-600); font-size: 1.8rem; transition: transform 180ms ease; }
.service-row:hover .service-arrow { transform: translateX(6px); }

.process-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; margin-top: 80px; border-top: 1px solid #244568; }
.process-step { position: relative; padding: 34px 30px 0 0; border-right: 1px solid #244568; }
.process-step:not(:first-child) { padding-left: 30px; }
.process-step:last-child { border-right: 0; }
.process-step::before { content: ''; position: absolute; top: -5px; left: 0; width: 9px; height: 9px; border-radius: 50%; background: var(--cyan-500); }
.process-step:not(:first-child)::before { left: 30px; }
.process-step h3 { margin: 16px 0 10px; font-size: 1.28rem; }
.process-step p { margin: 0; color: #b9c9da; font-size: .93rem; }

.principles { display: grid; grid-template-columns: repeat(3, 1fr); gap: 48px; }
.principle { padding-top: 24px; border-top: 3px solid var(--navy-950); }
.principle h3 { margin: 14px 0 12px; font-size: 1.4rem; }
.principle p { margin: 0; color: var(--muted); }

.cta-band { position: relative; overflow: hidden; padding: 90px 0; color: var(--white); background: var(--cyan-600); }
.cta-band::after { content: ''; position: absolute; width: 460px; height: 460px; right: -160px; top: -230px; border: 1px solid rgba(255,255,255,.45); border-radius: 50%; box-shadow: 0 0 0 65px rgba(255,255,255,.08), 0 0 0 130px rgba(255,255,255,.05); }
.cta-inner { position: relative; z-index: 1; display: flex; align-items: end; justify-content: space-between; gap: 50px; }
.cta-inner h2 { max-width: 800px; margin: 0; font-size: clamp(2.2rem, 5vw, 4.6rem); line-height: 1.05; letter-spacing: -.05em; }
.cta-copy { max-width: 820px; }
.cta-copy h2 { max-width: none; }
.cta-copy p { margin: 20px 0 0; color: rgba(255,255,255,.9); font-size: 1.08rem; }

.page-hero { padding-block: clamp(90px, 13vw, 170px) 90px; border-bottom: 1px solid var(--line); }
.page-hero h1 { max-width: 1080px; font-size: clamp(3.2rem, 7vw, 6.4rem); }
.page-hero p { max-width: 760px; margin: 34px 0 0; color: var(--muted); font-size: clamp(1.1rem, 1.6vw, 1.35rem); }
.page-hero .mono { display: block; margin-bottom: 26px; }

.solution-detail { display: grid; grid-template-columns: 110px .85fr 1.15fr; gap: 44px; padding: 64px 0; border-top: 1px solid var(--line); }
.solution-detail:last-child { border-bottom: 1px solid var(--line); }
.solution-detail h2 { margin: 0; color: var(--navy-950); font-size: clamp(1.8rem, 3vw, 2.8rem); line-height: 1.12; letter-spacing: -.035em; }
.solution-detail p { margin-top: 0; color: var(--muted); }
.solution-detail ul { display: grid; grid-template-columns: 1fr 1fr; gap: 12px 28px; margin: 26px 0 0; padding: 0; list-style: none; }
.solution-detail li { position: relative; padding-left: 18px; font-size: .94rem; }
.solution-detail li::before { content: ''; position: absolute; left: 0; top: .68em; width: 6px; height: 6px; background: var(--cyan-500); }

.story-grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(50px, 10vw, 140px); align-items: start; }
.story-statement { margin: 0; color: var(--navy-950); font-size: clamp(2rem, 4vw, 3.9rem); line-height: 1.12; letter-spacing: -.04em; }
.story-copy p { margin: 0 0 24px; color: var(--muted); font-size: 1.08rem; }
.values-list { margin-top: 70px; border-top: 1px solid var(--line); }
.value-row { display: grid; grid-template-columns: 80px 1fr 1fr; gap: 32px; padding: 32px 0; border-bottom: 1px solid var(--line); }
.value-row h3, .value-row p { margin: 0; }
.value-row p { color: var(--muted); }

.contact-layout { display: grid; grid-template-columns: .75fr 1.25fr; gap: clamp(60px, 10vw, 140px); align-items: start; }
.contact-aside { position: sticky; top: 130px; }
.contact-aside h2 { margin: 0; font-size: clamp(2rem, 3vw, 3.2rem); line-height: 1.1; letter-spacing: -.04em; }
.contact-aside p { margin: 24px 0 0; color: var(--muted); }
.contact-note { margin-top: 42px; padding-top: 24px; border-top: 1px solid var(--line); color: var(--muted); font-size: .9rem; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 26px; }
.field { display: grid; gap: 8px; }
.field-full { grid-column: 1 / -1; }
.field label { color: var(--navy-950); font-size: .9rem; font-weight: 700; }
.field input,
.field select,
.field textarea {
  width: 100%;
  border: 1px solid #b9c7d6;
  border-radius: var(--radius-sm);
  padding: 15px 16px;
  color: var(--ink);
  background: var(--white);
  transition: border 180ms ease, box-shadow 180ms ease;
}
.field textarea { min-height: 150px; resize: vertical; }
.field input:focus,
.field select:focus,
.field textarea:focus { border-color: var(--cyan-600); box-shadow: 0 0 0 4px rgba(0,139,240,.12); outline: 0; }
.field [aria-invalid='true'] { border-color: #bb2b3a; }
.field-error { min-height: 20px; color: #a71929; font-size: .8rem; }
.form-actions { display: flex; align-items: center; justify-content: space-between; gap: 20px; margin-top: 28px; }
.form-status { margin: 0; color: #a71929; font-size: .88rem; }
.form-success { padding: 48px; border: 1px solid var(--cyan-500); border-radius: var(--radius-md); background: var(--cyan-100); }
.form-success h2 { margin: 0 0 14px; color: var(--navy-950); font-size: 2rem; }
.form-success p { margin: 0; color: var(--muted); }

.site-footer { padding: 70px 0 30px; color: #c7d5e3; background: var(--navy-950); }
.footer-main { display: grid; grid-template-columns: 1.4fr .6fr .6fr; gap: 60px; padding-bottom: 64px; }
.footer-brand { max-width: 440px; }
.footer-mark { display: inline-flex; align-items: center; gap: 12px; color: var(--white); font-weight: 800; font-size: 1.2rem; text-decoration: none; }
.footer-mark svg { width: 44px; }
.footer-brand p { margin: 22px 0 0; color: #92a9bf; }
.footer-nav h2 { margin: 0 0 20px; color: var(--white); font-size: .78rem; letter-spacing: .1em; text-transform: uppercase; }
.footer-nav ul { display: grid; gap: 10px; margin: 0; padding: 0; list-style: none; }
.footer-nav a { color: #b6c7d7; text-decoration: none; }
.footer-nav a:hover { color: var(--cyan-500); }
.footer-bottom { display: flex; justify-content: space-between; gap: 30px; padding-top: 26px; border-top: 1px solid #244568; color: #7891a9; font-size: .78rem; }

[data-reveal] { opacity: 0; transform: translateY(26px); transition: opacity 650ms ease, transform 650ms ease; }
[data-reveal].is-visible { opacity: 1; transform: none; }

@media (max-width: 980px) {
  .menu-button { display: block; }
  .site-nav {
    position: fixed;
    inset: 88px 0 0;
    padding: 36px 24px;
    visibility: hidden;
    opacity: 0;
    background: var(--white);
    transition: opacity 180ms ease, visibility 180ms ease;
  }
  .site-nav[data-open='true'] { visibility: visible; opacity: 1; }
  .nav-list { align-items: stretch; flex-direction: column; gap: 0; }
  .nav-list a { display: block; padding: 18px 4px; border-bottom: 1px solid var(--line); font-size: 1.3rem; }
  .nav-list .button { margin-top: 24px; font-size: .95rem; }
  .nav-list a::after { display: none; }
  .hero { min-height: auto; }
  .hero-grid { grid-template-columns: 1fr; }
  .hero-copy { position: relative; z-index: 2; }
  .hero-visual { min-height: 420px; margin-top: -20px; }
  .brand-turn { grid-template-columns: 1fr; }
  .brand-turn-side { min-height: 420px; }
  .signal-stage { max-width: 520px; }
  .section-heading { grid-template-columns: 1fr; gap: 18px; }
  .service-row { grid-template-columns: 55px 1fr 38px; }
  .service-row p { grid-column: 2 / 3; }
  .service-arrow { grid-column: 3; grid-row: 1 / span 2; }
  .process-grid { grid-template-columns: 1fr 1fr; }
  .process-step:nth-child(2) { border-right: 0; }
  .process-step:nth-child(n+3) { margin-top: 52px; }
  .solution-detail { grid-template-columns: 70px 1fr; }
  .solution-detail > div:last-child { grid-column: 2; }
  .contact-layout { grid-template-columns: 1fr; }
  .contact-aside { position: static; }
}

@media (max-width: 680px) {
  .container { width: min(calc(100% - 32px), var(--max)); }
  .header-inner { min-height: 76px; }
  .brand img { width: 190px; }
  .site-nav { inset: 76px 0 0; }
  .hero-grid { padding-block: 56px 60px; gap: 12px; }
  .hero h1 { font-size: clamp(3.15rem, 16vw, 4.6rem); }
  .hero-brand h1 { font-size: clamp(2.85rem, 14vw, 4.15rem); }
  .hero-actions { align-items: stretch; flex-direction: column; gap: 18px; }
  .hero-actions .button { width: 100%; }
  .hero-visual { min-height: 320px; }
  .brand-turn-side { min-height: 350px; padding: 64px 24px; }
  .section { padding-block: 78px; }
  .service-row { grid-template-columns: 42px 1fr 26px; gap: 16px; padding: 28px 0; }
  .process-grid { grid-template-columns: 1fr; }
  .process-step { border-right: 0; }
  .process-step:not(:first-child) { margin-top: 42px; padding-left: 0; }
  .process-step:not(:first-child)::before { left: 0; }
  .principles { grid-template-columns: 1fr; gap: 40px; }
  .cta-inner { align-items: stretch; flex-direction: column; }
  .cta-inner .button { width: 100%; }
  .solution-detail { grid-template-columns: 1fr; gap: 20px; padding: 46px 0; }
  .solution-detail > div:last-child { grid-column: auto; }
  .solution-detail ul { grid-template-columns: 1fr; }
  .story-grid { grid-template-columns: 1fr; }
  .value-row { grid-template-columns: 48px 1fr; }
  .value-row p { grid-column: 2; }
  .form-grid { grid-template-columns: 1fr; }
  .field-full { grid-column: auto; }
  .form-actions { align-items: stretch; flex-direction: column-reverse; }
  .form-actions .button { width: 100%; }
  .footer-main { grid-template-columns: 1fr; gap: 44px; }
  .footer-bottom { flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  [data-reveal] { opacity: 1; transform: none; }
}