:root {
  --ink: #0E1C28;
  --blueprint: #123A5C;
  --blueprint-deep: #0B283F;
  --wash: #E4F0F7;
  --paper: #F6FAFC;
  --line: #8FB4CC;
  --copper: #C45C26;
  --copper-deep: #8C3A12;
  --muted: rgba(14, 28, 40, 0.68);
  --white: #F6FAFC;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: "IBM Plex Sans", system-ui, sans-serif;
  font-size: 18px;
  line-height: 1.55;
}
a { color: var(--copper-deep); }
a:hover { color: var(--copper); }
.skip {
  position: absolute; left: -999px; top: 0;
  background: var(--copper); color: white; padding: 8px 12px; z-index: 20;
}
.skip:focus { left: 12px; }
.wrap { width: min(1120px, calc(100% - 40px)); margin: 0 auto; }
.sheet {
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: 11px; letter-spacing: 0.18em; text-transform: uppercase; color: var(--line);
}
.nav {
  position: sticky; top: 0; z-index: 10;
  background: rgba(246, 250, 252, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(143, 180, 204, 0.45);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; padding: 14px 0; gap: 16px; }
.wordmark {
  font-family: "IBM Plex Sans", system-ui, sans-serif;
  font-weight: 800; letter-spacing: -0.04em; text-decoration: none;
  color: var(--blueprint); font-size: 22px; display: flex; align-items: center; gap: 10px;
}
.mark { width: 22px; height: 22px; display: block; }
.nav-links { display: flex; gap: 22px; align-items: center; }
.nav-links a {
  text-decoration: none; color: var(--blueprint);
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: 12px; letter-spacing: 0.08em; text-transform: uppercase;
}
.nav-links a:hover { color: var(--copper); }
.btn-primary, .btn-ghost {
  display: inline-flex; align-items: center; justify-content: center;
  text-decoration: none; border: 0; cursor: pointer;
  font-family: "IBM Plex Sans", system-ui, sans-serif;
  font-weight: 700; font-size: 16px; padding: 14px 22px;
}
.btn-primary { background: var(--copper); color: #fff; box-shadow: 4px 4px 0 var(--blueprint-deep); }
.btn-primary:hover { color: #fff; filter: brightness(1.05); }
.btn-ghost { background: transparent; color: var(--white); border: 1px solid rgba(232, 240, 247, 0.45); }
.hero {
  position: relative; display: flex; align-items: center;
  background: var(--blueprint-deep); color: var(--white); overflow: hidden;
  min-height: 72vh;
}
.hero-grid {
  position: absolute; inset: 0; pointer-events: none;
  background-image:
    linear-gradient(rgba(143,180,204,0.14) 1px, transparent 1px),
    linear-gradient(90deg, rgba(143,180,204,0.14) 1px, transparent 1px);
  background-size: 48px 48px;
}
.hero .wrap { position: relative; padding: 100px 0 72px; }
.eyebrow {
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  letter-spacing: 0.2em; text-transform: uppercase; font-size: 13px;
  color: var(--line); margin: 0 0 18px;
}
.hero h1 {
  font-family: "IBM Plex Sans", system-ui, sans-serif;
  font-weight: 800; font-size: clamp(36px, 6vw, 64px);
  line-height: 1.02; letter-spacing: -0.03em; margin: 0 0 22px; max-width: 18ch;
}
.subtitle { max-width: 42em; font-size: 19px; color: rgba(246,250,252,0.78); margin: 0 0 32px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; }
section { padding: 96px 0; }
.sec-head { margin-bottom: 36px; }
h2 {
  font-family: "IBM Plex Sans", system-ui, sans-serif;
  font-weight: 800; font-size: clamp(28px, 4vw, 44px);
  letter-spacing: -0.04em; line-height: 1.08; margin: 8px 0 0; color: var(--blueprint);
}
.lede { color: var(--muted); max-width: 46em; }
.band {
  background: var(--wash);
  border-top: 1px solid rgba(18,58,92,0.08);
  border-bottom: 1px solid rgba(18,58,92,0.08);
}
.pain { margin: 0; padding: 0; list-style: none; }
.pain li {
  border-bottom: 1px solid rgba(18,58,92,0.12);
  padding: 16px 0 16px 28px; position: relative; color: var(--muted);
}
.pain li::before {
  content: ""; position: absolute; left: 0; top: 22px;
  width: 12px; height: 12px; border-top: 2px solid var(--copper); border-right: 2px solid var(--copper);
}
.spine { display: grid; gap: 14px; }
.spine article {
  background: #fff; border: 1px solid rgba(18, 58, 92, 0.12); padding: 20px 22px;
}
.spine .sheet { color: var(--copper-deep); margin: 0 0 6px; }
.spine h3 { margin: 0 0 6px; font-size: 20px; letter-spacing: -0.03em; }
.spine p { margin: 0; color: var(--muted); font-size: 16px; }
.scenario {
  max-width: 46em; color: var(--muted);
}
.scenario p { margin: 0 0 1em; }
.end-grid { display: grid; gap: 12px; }
.end-grid div {
  display: grid; grid-template-columns: 160px 1fr; gap: 16px;
  padding: 14px 0; border-bottom: 1px solid rgba(18,58,92,0.12);
}
.end-grid strong { font-family: "IBM Plex Mono", ui-monospace, monospace; font-size: 12px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--blueprint); }
.end-grid p { margin: 0; color: var(--muted); font-size: 16px; }
.dont { margin: 0; padding-left: 18px; color: var(--muted); }
.engage-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.engage {
  background: #fff; border: 1px solid rgba(18, 58, 92, 0.12); padding: 22px 20px;
}
.engage .sheet { color: var(--copper-deep); margin: 0; }
.engage h3 { margin: 8px 0 8px; font-size: 18px; }
.engage p { margin: 0; color: var(--muted); font-size: 15px; }
.closing-cta { background: var(--blueprint-deep); color: var(--white); }
.closing-cta h2 { color: var(--white); }
form.contact { display: grid; gap: 14px; max-width: 640px; position: relative; }
label { font-family: "IBM Plex Mono", monospace; font-size: 12px; letter-spacing: 0.08em; text-transform: uppercase; }
input, select, textarea {
  width: 100%; background: rgba(246,250,252,0.06);
  border: 1px solid rgba(232,240,247,0.28); color: var(--white);
  font: 16px/1.4 "IBM Plex Sans", system-ui, sans-serif; padding: 12px;
}
option { color: var(--ink); }
.hp { position: absolute; left: -9999px; }
.form-status { min-height: 1.4em; font-family: "IBM Plex Mono", monospace; font-size: 13px; }
.weare {
  max-width: 46em; color: var(--muted);
}
.guarantee {
  max-width: 46em;
  border-left: 3px solid var(--copper);
  padding: 8px 0 8px 22px;
  color: var(--ink);
  font-size: 18px;
}
.towns {
  columns: 3;
  column-gap: 28px;
  margin: 0;
  padding: 0;
  list-style: none;
  color: var(--muted);
  font-size: 16px;
}
.towns li { break-inside: avoid; padding: 3px 0; }
.towns .note { font-size: 13px; color: var(--line); }
.stack-table {
  width: 100%; border-collapse: collapse; font-size: 15px;
}
.stack-table th, .stack-table td {
  text-align: left; vertical-align: top;
  padding: 12px 12px 12px 0;
  border-bottom: 1px solid rgba(18,58,92,0.12);
}
.stack-table th {
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: 11px; letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--blueprint); font-weight: 500;
}
.stack-table td { color: var(--muted); }
.stack-table td:first-child { color: var(--ink); font-weight: 600; width: 28%; }
.books { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.books article {
  background: #fff; border: 1px solid rgba(18, 58, 92, 0.12); padding: 22px 20px;
}
.books .sheet { color: var(--copper-deep); margin: 0; }
.books h3 { margin: 8px 0 8px; font-size: 20px; letter-spacing: -0.03em; }
.books p { margin: 0; color: var(--muted); font-size: 16px; }
@media (max-width: 900px) {
  .books { grid-template-columns: 1fr; }
  .stack-table td:first-child { width: auto; }
}
footer.site {
  padding: 40px 0 56px; background: var(--ink);
  color: rgba(246,250,252,0.78); font-size: 15px;
}
footer.site a { color: var(--wash); text-decoration: none; }
.foot-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 24px; }
.wordmark.light { color: var(--white); }
.foot-brand p { margin: 10px 0 0; }
.foot-who { max-width: 34em; }
@media (max-width: 900px) {
  .engage-grid { grid-template-columns: repeat(2, 1fr); }
  .end-grid div { grid-template-columns: 1fr; gap: 6px; }
  .nav-links a:not(.btn-primary) { display: none; }
  section { padding: 72px 0; }
  .towns { columns: 2; }
}
@media (max-width: 580px) {
  .engage-grid, .foot-grid { grid-template-columns: 1fr; }
  .wrap { width: calc(100% - 32px); }
  .towns { columns: 2; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
}