:root {
  --ink: #0B2545;
  --ink-2: #133A6B;
  --paper: #FFFFFF;
  --paper-dim: #F2F6FA;
  --line: #FFFFFF;
  --brass: #1C7FD6;
  --graphite: #26324A;
  --muted: #5B6B82;
  --serif: 'Newsreader', serif;
  --sans: 'IBM Plex Sans', sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--graphite);
  font-family: var(--sans);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

.wrap {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 32px;
}

a { color: inherit; }

/* Faint blueprint grid, fixed behind everything */
.grid-overlay {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -1;
  background-image:
    linear-gradient(to right, rgba(18,33,61,0.035) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(18,33,61,0.035) 1px, transparent 1px);
  background-size: 40px 40px;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid rgba(18,33,61,0.12);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}
.wordmark {
  font-family: var(--serif);
  font-size: 21px;
  font-weight: 600;
  text-decoration: none;
  color: var(--ink);
  letter-spacing: 0.01em;
  display: flex;
  align-items: center;
}
.wordmark-logo {
  height: 34px;
  width: auto;
  display: block;
}
.wordmark-rule { color: var(--brass); font-style: italic; }
.nav { display: flex; align-items: center; gap: 28px; font-size: 14.5px; }
.nav a { text-decoration: none; color: var(--graphite); }
.nav a:hover { color: var(--ink); }
.nav-cta {
  background: var(--ink);
  color: var(--line) !important;
  padding: 9px 16px;
  border-radius: 3px;
}
.nav-cta:hover { background: var(--ink-2); }

/* Hero banner — full-bleed brand graphic */
.hero-banner {
  position: relative;
  background: #0B2545 url('assets/banner.png') center center / cover no-repeat;
  overflow: hidden;
}
.hero-banner-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(115deg, rgba(5,18,38,0.94) 0%, rgba(11,37,69,0.88) 42%, rgba(11,37,69,0.62) 100%);
}
.hero-banner-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 48px;
  align-items: center;
  padding-top: 96px;
  padding-bottom: 96px;
}
.hero-banner .eyebrow { color: #7FC2F2; }
.hero-banner .hero h1,
.hero-banner-inner h1 {
  font-family: var(--serif);
  font-weight: 500;
  font-size: 44px;
  line-height: 1.18;
  color: #FFFFFF;
  margin: 0 0 22px;
  max-width: 20ch;
}
.hero-banner-inner .hero-sub {
  font-size: 16.5px;
  color: #D7E3F0;
  max-width: 46ch;
  margin: 0 0 32px;
}
.hero-banner-inner .btn-ghost {
  border-color: rgba(255,255,255,0.45);
  color: #FFFFFF;
}
.hero-banner-inner .btn-ghost:hover { border-color: #FFFFFF; }
.hero-banner-inner .hero-diagram {
  background: rgba(8,24,46,0.72);
  border: 1px solid rgba(255,255,255,0.12);
  backdrop-filter: blur(2px);
}

/* Hero */
.hero {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 48px;
  align-items: center;
  padding-top: 88px;
  padding-bottom: 88px;
}
.eyebrow {
  font-family: var(--serif);
  font-style: italic;
  color: var(--brass);
  font-size: 16px;
  margin: 0 0 18px;
}
.hero h1 {
  font-family: var(--serif);
  font-weight: 500;
  font-size: 44px;
  line-height: 1.18;
  color: var(--ink);
  margin: 0 0 22px;
  max-width: 20ch;
}
.hero-sub {
  font-size: 16.5px;
  color: var(--graphite);
  max-width: 46ch;
  margin: 0 0 32px;
}
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }

.btn {
  display: inline-block;
  padding: 13px 22px;
  border-radius: 3px;
  font-size: 14.5px;
  font-weight: 500;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
}
.btn-primary { background: var(--ink); color: var(--line); }
.btn-primary:hover { background: var(--ink-2); }
.btn-ghost { border-color: rgba(18,33,61,0.3); color: var(--ink); background: transparent; }
.btn-ghost:hover { border-color: var(--ink); }

.hero-diagram {
  background: var(--ink);
  border-radius: 4px;
  padding: 28px 22px 18px;
}
.hero-diagram svg { width: 100%; height: auto; display: block; }
.diagram-caption {
  font-family: var(--sans);
  font-size: 11px;
  letter-spacing: 0.04em;
  color: #8A93A6;
  margin: 12px 2px 0;
}

/* Trust bar */
.trust-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  padding: 22px 32px;
  margin-bottom: 8px;
  background: var(--paper-dim);
  border-radius: 6px;
  border: 1px solid rgba(11,37,69,0.08);
}
.trust-item { font-size: 13.5px; color: var(--graphite); text-align: center; }
.trust-item strong { color: var(--ink); font-weight: 600; }
@media (max-width: 860px) {
  .trust-bar { grid-template-columns: 1fr 1fr; }
}

/* Section label */
.section-label {
  font-family: var(--sans);
  font-size: 13px;
  color: var(--brass);
  letter-spacing: 0.02em;
  margin: 0 0 14px;
  border-top: 1px solid rgba(18,33,61,0.15);
  padding-top: 14px;
}

/* How it works */
.how { padding: 64px 32px 20px; }
.how-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 36px;
  margin-top: 8px;
}
.step-index {
  font-family: var(--serif);
  font-size: 26px;
  color: var(--brass);
  display: block;
  margin-bottom: 10px;
}
.how-step h3 {
  font-family: var(--serif);
  font-weight: 600;
  font-size: 19px;
  color: var(--ink);
  margin: 0 0 8px;
}
.how-step p { font-size: 14.5px; color: var(--muted); margin: 0; }

/* Services */
.services { padding: 56px 32px; }
.service-row {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 24px;
  padding: 22px 0;
  border-top: 1px solid rgba(18,33,61,0.12);
}
.service-row:last-child { border-bottom: 1px solid rgba(18,33,61,0.12); }
.service-row h3 {
  font-family: var(--serif);
  font-weight: 600;
  font-size: 19px;
  color: var(--ink);
  margin: 0;
}
.service-row p { font-size: 14.5px; color: var(--muted); margin: 0; max-width: 56ch; }

/* Demo */
.demo { padding: 64px 32px; }
.demo-heading {
  font-family: var(--serif);
  font-weight: 500;
  font-size: 27px;
  color: var(--ink);
  margin: 0 0 28px;
  max-width: 32ch;
}

/* Contact */
.contact { padding: 64px 32px 96px; }
.contact h2 {
  font-family: var(--serif);
  font-weight: 500;
  font-size: 27px;
  color: var(--ink);
  margin: 0 0 8px;
}
.contact-sub { color: var(--muted); margin: 0 0 28px; }
.contact-form { max-width: 520px; }
.form-row { margin-bottom: 18px; display: flex; flex-direction: column; gap: 6px; }
.form-row label { font-size: 13.5px; color: var(--graphite); }
.form-row input, .form-row textarea {
  font-family: var(--sans);
  font-size: 14.5px;
  padding: 11px 12px;
  border: 1px solid rgba(18,33,61,0.25);
  border-radius: 3px;
  background: var(--line);
  color: var(--ink);
  resize: vertical;
}
.form-row input:focus, .form-row textarea:focus {
  outline: 2px solid var(--brass);
  outline-offset: 1px;
}
.form-note { font-size: 13.5px; color: var(--muted); margin-top: 14px; }
.form-note a { color: var(--ink); }

/* Footer */
.site-footer {
  display: flex;
  justify-content: space-between;
  padding: 28px 32px 40px;
  border-top: 1px solid rgba(18,33,61,0.12);
  font-family: var(--serif);
  font-size: 14px;
  color: var(--ink);
}
.footer-muted { font-family: var(--sans); font-size: 12.5px; color: var(--muted); }

/* Responsive */
@media (max-width: 860px) {
  .hero { grid-template-columns: 1fr; padding-top: 56px; }
  .hero h1 { font-size: 32px; max-width: none; }
  .hero-banner-inner { grid-template-columns: 1fr; padding-top: 56px; padding-bottom: 56px; }
  .hero-banner-inner h1 { font-size: 32px; max-width: none; }
  .how-steps { grid-template-columns: 1fr; }
  .service-row { grid-template-columns: 1fr; gap: 8px; }
  .nav { gap: 16px; font-size: 13.5px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}