:root {
  /* CONTRAST A — Stepped slate ladder
     Hero: dark charcoal (original Option 2 color)
     Section 1 (problem): mid slate, lighter
     Section 2 (model): pewter slate, lighter still
     etc — every section steps lighter for visual rhythm */
  --hero-bg: #1A1E25;       /* dark charcoal (original) */
  --bg: #2E3744;            /* mid slate — default body */
  --bg-alt: #3A4554;        /* pewter — alt sections */
  --bg-cta: #1A1E25;        /* back to dark for final CTA */
  --line: #424E5E;
  --line-strong: #5A6573;
  --line-dark: #2A3340;

  --ink: #ECEAE4;
  --ink-soft: #BFC5CE;
  --ink-faint: #8893A1;

  --accent: #C66A3A;
  --accent-bright: #E08758;
  --accent-glow: rgba(198, 106, 58, 0.18);

  --c-operations:   #5A6573;
  --c-software:     #8893A1;
  --c-signal:       #C66A3A;
  --c-intelligence: #ECEAE4;

  --f-display: 'Plus Jakarta Sans', system-ui, sans-serif;
  --f-body: 'Inter', system-ui, sans-serif;
  --f-mono: 'JetBrains Mono', ui-monospace, monospace;

  --text: var(--ink);
  --text-soft: var(--ink-soft);
  --text-faint: var(--ink-faint);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--f-body);
  font-size: 17px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

a { color: var(--accent-bright); text-decoration: none; }
a:hover { color: var(--ink); }

.container { max-width: 1100px; margin: 0 auto; padding: 0 32px; }
.container.narrow { max-width: 720px; }
.center { text-align: center; }
.center-text { text-align: center; }
.muted { color: var(--ink-soft); }

h1, h2, h3, h4 { font-family: var(--f-display); color: var(--ink); letter-spacing: -0.02em; line-height: 1.15; }
h1 { font-size: clamp(40px, 6vw, 68px); font-weight: 700; line-height: 1.05; margin-bottom: 32px; letter-spacing: -0.03em; }
h2 { font-size: clamp(28px, 3.6vw, 42px); font-weight: 700; line-height: 1.18; margin-bottom: 32px; letter-spacing: -0.02em; }
h3 { font-size: 22px; font-weight: 700; margin-bottom: 12px; letter-spacing: -0.01em; }
h4 { font-size: 18px; font-weight: 600; margin-bottom: 6px; }

.lede { font-size: clamp(18px, 1.7vw, 21px); color: var(--ink-soft); max-width: 620px; line-height: 1.6; margin-bottom: 44px; }
.body { font-size: 18px; color: var(--ink-soft); line-height: 1.75; margin-bottom: 32px; }
.body strong, .lede strong { color: var(--ink); font-weight: 600; }
.hero-sub { font-family: var(--f-display); font-weight: 600; font-style: italic; font-size: clamp(20px, 2.2vw, 26px); color: var(--accent-bright); margin-bottom: 36px; letter-spacing: -0.01em; }

.eyebrow { display: inline-block; font-family: var(--f-mono); font-size: 12px; letter-spacing: 0.22em; text-transform: uppercase; color: var(--accent-bright); margin-bottom: 28px; font-weight: 500; }
.eyebrow-muted { color: var(--ink-faint); }

.footnote { font-family: var(--f-mono); font-size: 13px; color: var(--ink-faint); margin-top: 20px; letter-spacing: 0; line-height: 1.6; }

.logo { display: inline-flex; align-items: center; gap: 12px; text-decoration: none; color: var(--ink); }
.logo:hover { color: var(--ink); }
.logo-mark { width: 28px; height: 28px; display: inline-flex; align-items: center; justify-content: center; color: var(--accent); flex-shrink: 0; }
.logo-mark svg { width: 100%; height: 100%; display: block; }
.logo-mark-sm { width: 20px; height: 20px; }
.logo-text { display: inline-flex; align-items: baseline; gap: 8px; font-family: var(--f-display); }
.logo-blueprint { font-weight: 700; font-size: 19px; color: var(--ink); letter-spacing: -0.02em; }
.logo-labs { font-family: var(--f-display); font-weight: 500; font-size: 13px; letter-spacing: 0.22em; color: var(--accent); }

.nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(26, 30, 37, 0.88);
  backdrop-filter: saturate(140%) blur(12px);
  -webkit-backdrop-filter: saturate(140%) blur(12px);
  border-bottom: 1px solid var(--line-dark);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 72px; }
.nav-links { display: flex; align-items: center; gap: 36px; }
.nav-links a { font-family: var(--f-mono); font-size: 13px; letter-spacing: 0.04em; color: var(--ink-soft); text-decoration: none; }
.nav-links a:hover { color: var(--ink); }

.btn { display: inline-flex; align-items: center; justify-content: center; padding: 14px 26px; border-radius: 6px; font-family: var(--f-body); font-weight: 600; font-size: 14.5px; letter-spacing: 0.01em; text-decoration: none; transition: all 0.18s ease; border: 1px solid transparent; cursor: pointer; line-height: 1; }
.btn-primary { background: var(--accent); color: #fff; border-color: var(--accent); }
.btn-primary:hover { background: var(--accent-bright); border-color: var(--accent-bright); color: #fff; transform: translateY(-1px); box-shadow: 0 10px 32px var(--accent-glow); }
.btn-sm { padding: 10px 18px; font-size: 13px; }
.btn-lg { padding: 18px 36px; font-size: 15px; }

/* HERO — stays dark (the heavy anchor) */
.hero {
  position: relative;
  padding: 180px 0 160px;
  border-bottom: 1px solid var(--line-dark);
  background:
    radial-gradient(ellipse 900px 500px at 75% 0%, var(--accent-glow), transparent 70%),
    var(--hero-bg);
  overflow: hidden;
  color: #FFFFFF;
}
/* Hero text contrast boost — brighter against dark hero bg */
.hero h1 { color: #FFFFFF; }
.hero h1 .muted { color: #E6E2DA; }  /* second line — bright off-white, not slate-soft */
.hero .lede { color: #D8DAE0; }      /* lede paragraph — high-contrast soft white */
.hero .lede strong { color: #FFFFFF; }
.hero .hero-sub { color: var(--accent-bright); }  /* keep rust, but the brighter variant */
.hero::before {
  content: ''; position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 48px 48px;
  pointer-events: none;
  mask-image: linear-gradient(180deg, rgba(0,0,0,0.5), transparent 80%);
  -webkit-mask-image: linear-gradient(180deg, rgba(0,0,0,0.5), transparent 80%);
}
.hero > .container { position: relative; }
.hero .eyebrow { margin-bottom: 32px; }
.hero h1 { max-width: 880px; }
.hero-cta { margin-top: 12px; }

.section { padding: 160px 0; border-bottom: 1px solid var(--line); }
.section-alt { background: var(--bg-alt); }
.section-head { text-align: center; margin: 0 auto 88px; max-width: 720px; }
.section-head .lede, .section-head .body { margin-left: auto; margin-right: auto; }

.pyramid-wrap { display: flex; justify-content: center; padding: 48px 0 24px; }
.pyramid { width: 100%; max-width: 620px; display: flex; flex-direction: column; align-items: center; gap: 14px; }
.layer { position: relative; height: 92px; display: flex; align-items: center; justify-content: center; border-radius: 8px; padding: 0 24px; transition: transform 0.2s ease; border: 1px solid rgba(255,255,255,0.08); }
.layer:hover { transform: scale(1.015); }
.layer-label { display: flex; flex-direction: column; align-items: center; text-align: center; }
.layer-name { font-family: var(--f-display); font-size: 13px; letter-spacing: 0.16em; text-transform: uppercase; font-weight: 700; color: #fff; }
.layer-desc { font-family: var(--f-body); font-size: 13.5px; color: rgba(255,255,255,0.82); margin-top: 2px; }
.layer-intelligence { width: 32%; background: var(--c-intelligence); }
.layer-intelligence .layer-name, .layer-intelligence .layer-desc { color: var(--hero-bg); }
.layer-intelligence .layer-desc { color: rgba(26, 30, 37, 0.7); }
.layer-signal { width: 56%; background: var(--c-signal); }

/* Signal card — blueprint-style frame */
.signal-card {
  overflow: visible;
  margin-top: 14px;
  border-color: var(--accent-bright) !important;
}
.signal-card .layer-name { color: #fff; }
.signal-card .layer-desc { color: rgba(255, 255, 255, 0.92); }

.signal-badge {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translate(-50%, -50%);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: var(--hero-bg);
  color: var(--accent-bright);
  font-family: var(--f-mono);
  font-size: 10.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  font-weight: 600;
  white-space: nowrap;
  border-radius: 999px;
  border: 1px solid var(--accent-bright);
  z-index: 3;
}
.signal-badge-dot {
  width: 6px; height: 6px;
  background: var(--accent-bright);
  border-radius: 1px;
  display: inline-block;
}

.signal-bracket {
  position: absolute;
  width: 12px;
  height: 12px;
  border-color: var(--accent-bright);
  border-style: solid;
  border-width: 0;
}
.signal-bracket-tl { top: -6px; left: -6px; border-top-width: 1.5px; border-left-width: 1.5px; }
.signal-bracket-tr { top: -6px; right: -6px; border-top-width: 1.5px; border-right-width: 1.5px; }
.signal-bracket-bl { bottom: -6px; left: -6px; border-bottom-width: 1.5px; border-left-width: 1.5px; }
.signal-bracket-br { bottom: -6px; right: -6px; border-bottom-width: 1.5px; border-right-width: 1.5px; }
.layer-software { width: 80%; background: var(--c-software); }
.layer-operations { width: 100%; background: var(--c-operations); }

.deliverables { list-style: none; margin: 56px 0 56px; padding: 0; display: flex; flex-direction: column; gap: 4px; }
.deliverables li { display: flex; align-items: flex-start; gap: 24px; padding: 32px 0; border-top: 1px solid var(--line); }
.deliverables li:last-child { border-bottom: 1px solid var(--line); }
.deliverables .num { font-family: var(--f-mono); font-size: 13px; letter-spacing: 0.12em; color: var(--accent-bright); padding-top: 6px; min-width: 28px; font-weight: 500; }
.deliverables h4 { font-family: var(--f-display); font-size: 19px; color: var(--ink); font-weight: 700; margin-bottom: 4px; }
.deliverables p { font-size: 16px; color: var(--ink-soft); }

.offer-meta { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; padding: 40px; background: var(--bg-alt); border: 1px solid var(--line); border-radius: 10px; margin-top: 24px; }
.offer-meta-item { display: flex; flex-direction: column; gap: 6px; }
.meta-label { font-family: var(--f-mono); font-size: 11px; letter-spacing: 0.18em; text-transform: uppercase; color: var(--ink-faint); font-weight: 500; }
.meta-value { font-family: var(--f-display); font-size: 20px; color: var(--ink); font-weight: 700; letter-spacing: -0.01em; }
.meta-sub { font-family: var(--f-mono); font-size: 12px; color: var(--ink-faint); font-weight: 400; letter-spacing: 0.02em; }

.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.step { padding: 40px 32px; background: var(--bg); border: 1px solid var(--line); border-radius: 10px; transition: all 0.2s ease; }
.step:hover { border-color: var(--accent); transform: translateY(-2px); box-shadow: 0 12px 32px rgba(0,0,0,0.35); }
.step-num { font-family: var(--f-mono); font-size: 12px; letter-spacing: 0.16em; color: var(--accent-bright); margin-bottom: 18px; font-weight: 500; }
.step h3 { font-family: var(--f-display); font-size: 22px; margin-bottom: 10px; font-weight: 700; }
.step p { font-size: 16px; color: var(--ink-soft); }

/* CTA — back to dark for closure */
.section-cta {
  padding: 180px 0;
  background:
    radial-gradient(ellipse at center top, var(--accent-glow), transparent 60%),
    var(--bg-cta);
  border-bottom: 1px solid var(--line-dark);
}
.section-cta h2 { margin-bottom: 20px; }
.section-cta .lede { margin: 0 auto 36px; }

.footer { padding: 48px 0; background: var(--bg-cta); }
.footer-inner { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 20px; }
.footer-brand { display: flex; align-items: center; gap: 10px; font-family: var(--f-display); font-weight: 600; font-size: 14px; color: var(--ink-soft); }
.footer-meta { display: flex; gap: 10px; align-items: center; font-family: var(--f-mono); font-size: 12px; letter-spacing: 0.02em; color: var(--ink-faint); }
.footer-meta a { color: var(--ink-faint); text-decoration: none; }
.footer-meta a:hover { color: var(--accent-bright); }
.dot { color: var(--line-dark); }

@media (max-width: 720px) {
  body { font-size: 16px; }
  .nav-links a:not(.btn) { display: none; }
  .nav-inner { height: 64px; }
  .hero { padding: 100px 0 90px; }
  .section { padding: 90px 0; }
  .section-head { margin-bottom: 56px; }
  .section-cta { padding: 100px 0; }
  .steps { grid-template-columns: 1fr; }
  .offer-meta { grid-template-columns: 1fr; padding: 28px; gap: 22px; }
  .layer { height: 78px; padding: 0 16px; }
  .layer-desc { font-size: 12px; }
  .layer-intelligence { width: 50%; }
  .layer-signal { width: 70%; }
  .layer-software { width: 88%; }
  .signal-badge { font-size: 9.5px; padding: 4px 10px; letter-spacing: 0.12em; }
  .deliverables li { gap: 16px; padding: 24px 0; }
  .logo-blueprint { font-size: 17px; }
  .logo-labs { font-size: 12px; }
}