:root {
  --color-navy: #0B1C2C;
  --color-blue-light: #2E7CF6;
  --color-blue-dark: #1B3A8C;
  --color-ink: #101826;
  --color-ink-soft: #4A5568;
  --color-paper: #FFFFFF;
  --color-paper-soft: #F4F7FB;
  --color-border: #DCE3EE;

  --font-display: "Space Grotesk", ui-sans-serif, system-ui, sans-serif;
  --font-body: "IBM Plex Sans", ui-sans-serif, system-ui, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, monospace;

  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2.5rem;
  --space-5: 4rem;
  --space-6: 6rem;

  --radius: 10px;
  --max-width: 1120px;
}

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--color-ink);
  background: var(--color-paper);
  line-height: 1.6;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  line-height: 1.15;
  margin: 0 0 var(--space-2);
  color: var(--color-navy);
}

h1 { font-size: clamp(2rem, 4vw + 1rem, 3.25rem); }
h2 { font-size: clamp(1.5rem, 2vw + 1rem, 2.25rem); }
h3 { font-size: 1.25rem; }

p { margin: 0 0 var(--space-2); color: var(--color-ink-soft); }

a { color: var(--color-blue-dark); }

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-3);
}

.status-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-blue-dark);
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius);
  font-family: var(--font-display);
  font-weight: 600;
  text-decoration: none;
  border: 2px solid transparent;
  cursor: pointer;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-blue-light), var(--color-blue-dark));
  color: var(--color-paper);
}

.btn-primary:hover { filter: brightness(1.08); }

.btn-ghost {
  border-color: var(--color-blue-light);
  color: var(--color-blue-dark);
  background: transparent;
}

.btn-ghost:hover { background: var(--color-paper-soft); }

.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

.site-header__bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-2) var(--space-3);
}

.site-header__brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--color-navy);
  text-decoration: none;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 4px;
  background: none;
  border: none;
  padding: 8px;
  cursor: pointer;
}

.nav-toggle__bar {
  width: 22px; height: 2px;
  background: var(--color-navy);
}

.nav {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.nav-list {
  display: flex;
  gap: var(--space-3);
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-list a {
  color: var(--color-ink);
  text-decoration: none;
  font-weight: 500;
}

.nav-list a:hover { color: var(--color-blue-dark); }

@media (max-width: 768px) {
  .nav-toggle { display: flex; }

  .nav {
    position: absolute;
    inset: 64px 0 auto 0;
    flex-direction: column;
    align-items: stretch;
    background: var(--color-paper);
    border-bottom: 1px solid var(--color-border);
    padding: var(--space-2) var(--space-3);
    display: none;
  }

  .nav.is-open { display: flex; }

  .nav-list {
    flex-direction: column;
    gap: var(--space-2);
  }

  .nav-cta { justify-content: center; }
}

.site-footer {
  background: var(--color-navy);
  color: #C9D6E8;
  margin-top: var(--space-6);
  padding: var(--space-5) 0 var(--space-2);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
}

.site-footer h3 {
  color: var(--color-paper);
  font-size: 1rem;
}

.footer-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.4rem;
}

.footer-list a { color: #C9D6E8; }

.footer-bottom {
  margin-top: var(--space-4);
  padding-top: var(--space-2);
  border-top: 1px solid rgba(255,255,255,0.12);
  font-size: 0.85rem;
}

@media (max-width: 768px) {
  .footer-grid { grid-template-columns: 1fr; }
}

.hero { padding: var(--space-6) 0 var(--space-5); }

.hero__grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: var(--space-4);
  align-items: center;
}

.hero__actions {
  display: flex;
  gap: var(--space-2);
  margin-top: var(--space-3);
  flex-wrap: wrap;
}

.hero__diagram svg { width: 100%; height: auto; }

.topology-lines line {
  stroke-dasharray: 4 6;
  animation: pulse-flow 1.2s linear infinite;
}

@keyframes pulse-flow {
  from { stroke-dashoffset: 20; }
  to   { stroke-dashoffset: 0; }
}

@media (prefers-reduced-motion: reduce) {
  .topology-lines line { animation: none; }
}

.pillar-section { padding: var(--space-5) 0; }

.pillar-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-3);
  margin-top: var(--space-3);
}

.pillar-card {
  display: block;
  padding: var(--space-3);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  text-decoration: none;
  color: var(--color-ink);
  transition: border-color 0.15s, transform 0.15s;
}

.pillar-card:hover {
  border-color: var(--color-blue-light);
  transform: translateY(-2px);
}

.trust-strip {
  background: var(--color-paper-soft);
  padding: var(--space-5) 0;
}

.trust-strip__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-3);
}

.cta-band {
  background: linear-gradient(135deg, var(--color-navy), var(--color-blue-dark));
  padding: var(--space-5) 0;
}

.cta-band__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  flex-wrap: wrap;
}

.cta-band h2 { color: var(--color-paper); margin: 0; }

@media (max-width: 900px) {
  .hero__grid { grid-template-columns: 1fr; }
  .pillar-grid { grid-template-columns: repeat(2, 1fr); }
  .trust-strip__grid { grid-template-columns: 1fr; }
}

.page-hero {
  padding: var(--space-5) 0 var(--space-4);
  background: var(--color-paper-soft);
}

.service-detail { padding: var(--space-5) 0; }

.service-detail__grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: var(--space-4);
  align-items: start;
}

.service-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--space-2);
}

.service-list li {
  padding-left: var(--space-3);
  border-left: 3px solid var(--color-blue-light);
  color: var(--color-ink-soft);
}

.service-list strong { color: var(--color-ink); }

.service-detail__diagram svg { width: 100%; height: auto; }

@media (max-width: 900px) {
  .service-detail__grid { grid-template-columns: 1fr; }
}

.about-body { padding: var(--space-5) 0; }

.about-grid {
  display: grid;
  grid-template-columns: 1.4fr 0.6fr;
  gap: var(--space-4);
  align-items: start;
}

.about-card {
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: var(--space-3);
  text-align: center;
  display: grid;
  gap: 0.5rem;
  justify-items: center;
}

@media (max-width: 900px) {
  .about-grid { grid-template-columns: 1fr; }
}

.process-section { padding: var(--space-5) 0; }

.process-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-3);
}

.process-step {
  padding: var(--space-3);
  border-top: 3px solid var(--color-blue-light);
}

@media (max-width: 900px) {
  .process-steps { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 600px) {
  .process-steps { grid-template-columns: 1fr; }
}

.contact-section { padding: var(--space-5) 0; }

.contact-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: var(--space-4);
}

.contact-card {
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: var(--space-3);
}

.quote-form {
  display: grid;
  gap: 0.5rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: var(--space-3);
}

.quote-form label {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--color-ink-soft);
  margin-top: var(--space-1);
}

.quote-form select,
.quote-form textarea {
  padding: 0.6rem;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  font-family: var(--font-body);
}

.quote-form button { margin-top: var(--space-2); justify-self: start; }

@media (max-width: 900px) {
  .contact-grid { grid-template-columns: 1fr; }
}

.legal-content {
  padding: var(--space-5) 0 var(--space-6);
}

.legal-content .container > * {
  max-width: 760px;
}