:root {
  --bg: #071018;
  --bg-deep: #050b11;
  --surface: #0d1823;
  --surface-2: #101f2d;
  --surface-3: #142636;
  --ink: #ecf3f8;
  --muted: #9fb1c1;
  --line: rgba(148, 175, 196, 0.16);
  --line-strong: rgba(148, 175, 196, 0.32);
  --accent: #7ea8d6;
  --accent-strong: #b9d3ee;
  --accent-glow: rgba(126, 168, 214, 0.18);
  --success: #7fc8a9;
  --radius: 22px;
  --shadow: 0 24px 60px rgba(0, 0, 0, 0.32);
  --container: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: 'Inter', system-ui, sans-serif;
  color: var(--ink);
  line-height: 1.6;
  background:
    radial-gradient(circle at top left, rgba(126, 168, 214, 0.12), transparent 22%),
    radial-gradient(circle at 80% 0%, rgba(30, 58, 95, 0.2), transparent 28%),
    linear-gradient(180deg, #08111a 0%, #050b11 100%);
}

a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
button, input, select, textarea { font: inherit; }

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(126, 168, 214, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(126, 168, 214, 0.04) 1px, transparent 1px);
  background-size: 36px 36px;
  mask-image: radial-gradient(circle at center, black 42%, transparent 100%);
  opacity: 0.22;
}

.container {
  width: min(var(--container), calc(100% - 2rem));
  margin: 0 auto;
}

.narrow { max-width: 860px; }
.section { padding: 92px 0; position: relative; }
.section-muted {
  background: linear-gradient(180deg, rgba(17, 31, 44, 0.78), rgba(10, 19, 27, 0.88));
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.section-accent { padding-top: 22px; padding-bottom: 92px; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(16px);
  background: rgba(6, 11, 17, 0.78);
  border-bottom: 1px solid rgba(148, 175, 196, 0.09);
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 84px;
  gap: 20px;
}

.brand { display: inline-flex; align-items: center; }
.brand-logo { height: 34px; width: auto; filter: brightness(0) invert(1); }
.footer-logo { height: 28px; }

.site-nav {
  display: flex;
  align-items: center;
  gap: 22px;
}

.site-nav a {
  color: var(--muted);
  font-weight: 500;
  transition: color .18s ease;
}

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

.nav-toggle {
  display: none;
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--ink);
  border-radius: 12px;
  padding: 10px 14px;
}

.hero-grid,
.split-grid,
.contact-grid,
.footer-grid,
.diagram-grid,
.approach-grid,
.signal-grid {
  display: grid;
  gap: 28px;
}

.hero-grid {
  grid-template-columns: 1.15fr .85fr;
  align-items: start;
}

.hero h1,
.page-hero h1 {
  margin: 0 0 18px;
  font-size: clamp(3rem, 5vw, 5.3rem);
  line-height: 0.94;
  letter-spacing: -0.07em;
  max-width: 12ch;
  text-wrap: balance;
}

.lead {
  font-size: 1.1rem;
  color: var(--muted);
  max-width: 64ch;
}

.eyebrow,
.kicker {
  display: inline-block;
  margin: 0 0 14px;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-weight: 700;
  color: var(--accent-strong);
}

.kicker {
  font-family: 'IBM Plex Mono', 'SFMono-Regular', Consolas, monospace;
  margin-bottom: 18px;
  color: #9bc1e7;
}

.hero-actions,
.cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin: 30px 0 24px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  padding: 0 18px;
  border-radius: 14px;
  border: 1px solid transparent;
  font-weight: 600;
  transition: transform .18s ease, border-color .18s ease, background .18s ease, color .18s ease;
}
.btn:hover { transform: translateY(-1px); }

.btn-primary {
  background: linear-gradient(135deg, #8cb4de 0%, #6f96bf 100%);
  color: #06111a;
  box-shadow: 0 18px 30px rgba(82, 118, 156, 0.22);
}

.btn-secondary {
  background: rgba(12, 23, 34, 0.72);
  color: var(--ink);
  border-color: var(--line);
}

.btn-secondary.light {
  background: rgba(255,255,255,0.08);
  color: #fff;
  border-color: rgba(255,255,255,0.16);
}

.hero-points,
.check-list,
.contact-list,
.site-footer ul,
.metrics-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.hero-points li,
.check-list li,
.contact-list li,
.site-footer li,
.metrics-list li {
  position: relative;
  padding-left: 22px;
  margin-bottom: 10px;
  color: var(--muted);
}

.hero-points li::before,
.check-list li::before,
.contact-list li::before,
.site-footer li::before,
.metrics-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: var(--accent);
  box-shadow: 0 0 0 5px rgba(126, 168, 214, 0.08);
}

.panel {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(13, 24, 35, 0.94), rgba(9, 16, 24, 0.94));
  box-shadow: var(--shadow);
}

.hero-card,
.card,
.service-block,
.step,
.compact-note,
.contact-panel,
.inquiry-form,
.cta-block,
.diagram-card,
.signal-card,
.metric-panel,
.hero-schematic,
.approach-panel {
  padding: 30px;
}

.hero-card,
.hero-schematic {
  position: relative;
  overflow: hidden;
}

.hero-card::after,
.diagram-card::after,
.hero-schematic::after {
  content: "";
  position: absolute;
  inset: auto -20% -40% auto;
  width: 220px;
  height: 220px;
  background: radial-gradient(circle, rgba(126, 168, 214, 0.22), transparent 70%);
  pointer-events: none;
}

.mini-label {
  margin-bottom: 18px;
  color: #91a9bd;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 0.77rem;
  font-family: 'IBM Plex Mono', 'SFMono-Regular', Consolas, monospace;
}

.capability-list,
.service-stack,
.steps,
.flow-rows,
.approach-steps { display: grid; gap: 18px; }

.capability-list h3,
.card h3,
.service-block h2,
.step h3,
.contact-panel h2,
.inquiry-form h2,
.footer-grid h3,
.signal-card h3,
.metric-panel h3,
.diagram-card h3,
.approach-panel h3 {
  margin: 0 0 10px;
  letter-spacing: -0.045em;
}

.section-heading {
  display: grid;
  gap: 10px;
  margin-bottom: 32px;
  max-width: 820px;
}

.section-heading h2,
.split-grid h2,
.cta-block h2,
.approach-grid h2 {
  margin: 0;
  font-size: clamp(2rem, 3vw, 3.1rem);
  line-height: 1.04;
  letter-spacing: -0.06em;
  text-wrap: balance;
}

.cards.three-up,
.cards.two-up,
.diagram-grid,
.signal-grid,
.approach-grid {
  display: grid;
  gap: 22px;
}
.cards.three-up { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.cards.two-up,
.diagram-grid,
.approach-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.signal-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }

.split-grid {
  grid-template-columns: .78fr 1.22fr;
  align-items: start;
}

.step {
  display: grid;
  grid-template-columns: 54px 1fr;
  gap: 18px;
  align-items: start;
}
.step span {
  display: grid;
  place-items: center;
  width: 54px;
  height: 54px;
  border-radius: 16px;
  background: rgba(126, 168, 214, 0.12);
  color: var(--accent-strong);
  border: 1px solid rgba(126, 168, 214, 0.22);
  font-weight: 700;
}

.tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.tag-cloud span {
  border: 1px solid rgba(126, 168, 214, 0.16);
  border-radius: 999px;
  padding: 8px 12px;
  font-size: 0.92rem;
  background: rgba(14, 26, 39, 0.78);
  color: var(--muted);
}

.contact-grid,
.footer-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.footer-grid { grid-template-columns: 1.2fr .9fr .9fr; }

.cta-block {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 28px;
  background: linear-gradient(135deg, #0f1d2b 0%, #1a3044 100%);
  color: #fff;
}
.cta-block p,
.cta-block .eyebrow,
.cta-block h2 { color: inherit; }
.cta-block .eyebrow { opacity: .78; }

.site-footer {
  border-top: 1px solid var(--line);
  margin-top: 10px;
}
.footer-grid { padding: 34px 0 62px; }

.site-footer p,
.site-footer li,
.card p,
.service-block p,
.compact-note p,
.contact-panel p,
.inquiry-form p,
.step p,
.capability-list p,
.signal-card p,
.metric-panel p,
.diagram-card p,
.approach-panel p { color: var(--muted); }

.inquiry-form {
  display: grid;
  gap: 14px;
}

.inquiry-form label {
  display: grid;
  gap: 8px;
  color: var(--muted);
}

.inquiry-note {
  padding: 14px 16px;
  border-radius: 14px;
  background: rgba(126, 168, 214, 0.08);
  border: 1px solid rgba(126, 168, 214, 0.14);
  color: var(--muted);
  font-size: 0.94rem;
}

input,
select,
textarea {
  width: 100%;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: rgba(8, 16, 24, 0.9);
  color: var(--ink);
  padding: 14px 16px;
  outline: none;
}
input:focus,
select:focus,
textarea:focus {
  border-color: var(--line-strong);
  box-shadow: 0 0 0 4px rgba(126, 168, 214, 0.08);
}

.hero-schematic .flow-line,
.diagram-card .flow-line {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--muted);
  font-size: 0.95rem;
}

.node {
  padding: 12px 14px;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: rgba(12, 23, 34, 0.86);
  min-width: 124px;
}

.arrow {
  color: var(--accent-strong);
  font-family: 'IBM Plex Mono', monospace;
  letter-spacing: 0.14em;
}

.signal-card {
  background: linear-gradient(180deg, rgba(14, 26, 39, 0.95), rgba(9, 17, 25, 0.95));
}

.signal-card strong,
.metric-panel strong { color: var(--ink); }

.metric-panel {
  display: grid;
  gap: 18px;
}
.metric-row {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}
.metric {
  padding: 14px;
  border-radius: 16px;
  border: 1px solid var(--line);
  background: rgba(10, 18, 27, 0.88);
}
.metric-value {
  display: block;
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--accent-strong);
}
.metric-label {
  color: var(--muted);
  font-size: 0.88rem;
}

.approach-panel {
  background: linear-gradient(180deg, rgba(15, 27, 40, 0.94), rgba(9, 16, 24, 0.94));
}

.status-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 18px;
}
.status-chip {
  padding: 10px 12px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(10, 18, 27, 0.86);
  color: var(--muted);
  font-size: 0.88rem;
}

@media (max-width: 1040px) {
  .signal-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 920px) {
  .hero-grid,
  .split-grid,
  .contact-grid,
  .footer-grid,
  .cards.three-up,
  .cards.two-up,
  .diagram-grid,
  .approach-grid,
  .signal-grid,
  .cta-block,
  .metric-row {
    grid-template-columns: 1fr;
    flex-direction: column;
    align-items: flex-start;
  }

  .nav-toggle { display: inline-flex; }
  .site-nav {
    position: absolute;
    right: 1rem;
    top: 78px;
    width: min(300px, calc(100% - 2rem));
    padding: 14px;
    border-radius: 18px;
    border: 1px solid var(--line);
    background: rgba(9, 16, 24, 0.98);
    display: none;
    flex-direction: column;
    align-items: flex-start;
    box-shadow: var(--shadow);
  }
  .site-nav.open { display: flex; }
}

@media (max-width: 640px) {
  .section { padding: 72px 0; }
  .hero h1,
  .page-hero h1 { font-size: 2.5rem; }
  .brand-logo { height: 30px; }
  .hero-card,
  .card,
  .service-block,
  .step,
  .compact-note,
  .contact-panel,
  .inquiry-form,
  .cta-block,
  .diagram-card,
  .signal-card,
  .metric-panel,
  .hero-schematic,
  .approach-panel { padding: 22px; }
}