:root {
  --ink: #102027;
  --muted: #5d6b72;
  --line: #dce5e3;
  --paper: #f8faf7;
  --white: #ffffff;
  --teal: #1e8a86;
  --blue: #2b6fbc;
  --coral: #d65f4f;
  --amber: #d99a2b;
  --charcoal: #172126;
  --shadow: 0 18px 50px rgba(15, 32, 39, 0.12);
  color-scheme: light;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  overflow-x: hidden;
  background: var(--paper);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
  text-rendering: optimizeLegibility;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
  padding: 0 48px;
  border-bottom: 1px solid rgba(220, 229, 227, 0.78);
  background: rgba(248, 250, 247, 0.88);
  backdrop-filter: blur(16px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 720;
  letter-spacing: 0;
}

.brand-mark {
  display: grid;
  width: 36px;
  height: 36px;
  place-items: center;
  border-radius: 8px;
  background: var(--charcoal);
  color: var(--white);
  font-size: 18px;
}

.site-nav {
  display: flex;
  gap: 28px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 620;
}

.site-nav a {
  padding: 8px 0;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  color: var(--ink);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 0.98fr) minmax(360px, 1.02fr);
  width: min(1160px, calc(100vw - 96px));
  gap: 64px;
  align-items: center;
  min-height: calc(100vh - 72px);
  margin: 0 auto;
  padding: 78px 0 72px;
  border-bottom: 1px solid var(--line);
}

.section,
.band-inner,
.contact-section,
.site-footer {
  width: min(1160px, calc(100vw - 96px));
  margin: 0 auto;
}

.hero-copy {
  width: 100%;
  min-width: 0;
  max-width: 640px;
}

.eyebrow {
  margin: 0 0 16px;
  color: var(--teal);
  font-size: 12px;
  font-weight: 760;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 640px;
  margin-bottom: 24px;
  font-size: clamp(44px, 5.6vw, 74px);
  line-height: 1.02;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 0;
  font-size: clamp(30px, 4.2vw, 54px);
  line-height: 1.04;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 10px;
  font-size: 20px;
  line-height: 1.25;
  letter-spacing: 0;
}

.hero-text {
  max-width: 650px;
  margin-bottom: 34px;
  color: var(--muted);
  font-size: 20px;
}

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

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 20px;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 720;
}

.button-primary {
  background: var(--ink);
  color: var(--white);
}

.button-secondary {
  border: 1px solid var(--line);
  background: var(--white);
  color: var(--ink);
}

.button:hover,
.button:focus-visible,
.contact-link:hover,
.contact-link:focus-visible {
  transform: translateY(-1px);
}

.hero-visual {
  position: relative;
  min-width: 0;
  min-height: 500px;
  overflow: hidden;
  border: 1px solid rgba(16, 32, 39, 0.1);
  border-radius: 8px;
  background:
    linear-gradient(140deg, rgba(255, 255, 255, 0.9), rgba(233, 243, 240, 0.7)),
    radial-gradient(circle at 30% 20%, rgba(30, 138, 134, 0.12), transparent 35%);
  box-shadow: var(--shadow);
}

#systemCanvas {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 500px;
}

.signal-panel {
  position: absolute;
  right: 28px;
  bottom: 28px;
  display: flex;
  align-items: center;
  gap: 20px;
  width: min(330px, calc(100% - 56px));
  padding: 18px;
  border: 1px solid rgba(220, 229, 227, 0.92);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.9);
  box-shadow: 0 10px 30px rgba(15, 32, 39, 0.1);
}

.metric-label {
  display: block;
  margin-bottom: 2px;
  color: var(--muted);
  font-size: 12px;
}

.signal-panel strong {
  font-size: 20px;
  line-height: 1.1;
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(2, 18px);
  gap: 6px;
  margin-left: auto;
}

.metric-grid span {
  width: 18px;
  height: 18px;
  border-radius: 5px;
}

.metric-grid span:nth-child(1) {
  background: var(--teal);
}

.metric-grid span:nth-child(2) {
  background: var(--blue);
}

.metric-grid span:nth-child(3) {
  background: var(--amber);
}

.metric-grid span:nth-child(4) {
  background: var(--coral);
}

.section {
  padding: 96px 0;
}

.intro {
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: 72px;
  align-items: start;
}

.intro > p,
.operations p,
.company-list,
.contact-section p,
.service-card p,
.focus-list p {
  color: var(--muted);
}

.section-heading {
  max-width: 760px;
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
  margin-top: 42px;
}

.service-card {
  min-height: 310px;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
}

.service-number {
  display: inline-block;
  margin-bottom: 44px;
  color: var(--teal);
  font-size: 13px;
  font-weight: 760;
}

.band {
  background: var(--charcoal);
  color: var(--white);
}

.band-inner {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 70px;
  padding: 96px 0;
}

.band .eyebrow {
  color: #7ed3c7;
}

.focus-list {
  display: grid;
  gap: 28px;
}

.focus-list > div {
  padding-bottom: 28px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.14);
}

.focus-list > div:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.focus-list p {
  margin-bottom: 0;
  color: rgba(255, 255, 255, 0.68);
}

.operations-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  margin-top: 42px;
}

.operations-grid > div {
  padding: 30px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
}

.company {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 56px;
  border-top: 1px solid var(--line);
}

.company-list {
  display: grid;
  gap: 0;
  margin: 0;
}

.company-list div {
  display: grid;
  grid-template-columns: 170px 1fr;
  gap: 28px;
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
}

.company-list dt {
  color: var(--ink);
  font-weight: 720;
}

.company-list dd {
  margin: 0;
}

.contact-section {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 48px;
  align-items: center;
  padding: 54px;
  border-radius: 8px;
  background: var(--ink);
  color: var(--white);
}

.contact-section .eyebrow {
  color: #7ed3c7;
}

.contact-section p {
  max-width: 680px;
  margin-bottom: 0;
  color: rgba(255, 255, 255, 0.72);
}

.contact-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 54px;
  padding: 0 20px;
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.08);
  color: var(--white);
  font-weight: 720;
  white-space: nowrap;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  padding: 34px 0 42px;
  color: var(--muted);
  font-size: 14px;
}

@media (max-width: 980px) {
  .site-header {
    padding: 0 24px;
  }

  .site-nav {
    gap: 16px;
  }

  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
    padding: 58px 24px 56px;
  }

  .hero-copy,
  .hero-visual {
    width: 100%;
    max-width: none;
    margin: 0;
  }

  .hero-copy,
  .section,
  .band-inner,
  .contact-section,
  .site-footer {
    width: min(100%, calc(100vw - 48px));
  }

  .hero-visual {
    min-height: 420px;
  }

  #systemCanvas {
    min-height: 420px;
  }

  .intro,
  .band-inner,
  .company,
  .contact-section {
    grid-template-columns: 1fr;
  }

  .service-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .contact-section {
    padding: 36px;
  }
}

@media (max-width: 680px) {
  .site-header {
    align-items: flex-start;
    min-height: auto;
    padding: 16px 20px;
  }

  .brand span:last-child {
    display: none;
  }

  .site-nav {
    flex-wrap: wrap;
    justify-content: flex-end;
    gap: 8px 14px;
    font-size: 13px;
  }

  .hero {
    padding: 44px 20px 46px;
  }

  .hero-copy,
  .section,
  .band-inner,
  .contact-section,
  .site-footer {
    width: min(100%, calc(100vw - 40px));
  }

  h1 {
    font-size: clamp(42px, 13vw, 56px);
  }

  h2 {
    font-size: clamp(28px, 10vw, 38px);
  }

  .hero-text {
    font-size: 17px;
  }

  .button,
  .contact-link {
    width: 100%;
  }

  .hero-visual {
    min-height: 360px;
  }

  #systemCanvas {
    min-height: 360px;
  }

  .signal-panel {
    right: 16px;
    bottom: 16px;
    width: calc(100% - 32px);
  }

  .section,
  .band-inner {
    padding: 68px 0;
  }

  .service-grid,
  .operations-grid {
    grid-template-columns: 1fr;
  }

  .service-card {
    min-height: auto;
  }

  .service-number {
    margin-bottom: 28px;
  }

  .company-list div {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .site-footer {
    flex-direction: column;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}