:root {
  --paper: #ece8e1;      /* matches the logo background */
  --paper-deep: #e2ddd3;
  --card: #f6f3ee;
  --ink: #16293d;        /* logo navy */
  --ink-soft: #4a5a6b;
  --line: #cfc8bb;
  --accent: #b4532a;
  --code-bg: #14222f;
  --code-ink: #dfe6ec;
  --code-dim: #8499ab;
  --sans: "Segoe UI", system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;
  --mono: "Cascadia Code", Consolas, "SF Mono", Menlo, monospace;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: 72px; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.6;
}

.wrap { max-width: 1080px; margin: 0 auto; padding: 0 24px; }

h1, h2, h3 { line-height: 1.15; margin: 0 0 16px; letter-spacing: -0.01em; }
h1 { font-size: clamp(2rem, 4.6vw, 3.2rem); font-weight: 750; text-wrap: balance; }
h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); font-weight: 720; }
h3 { font-size: 1.15rem; }
p { margin: 0 0 16px; }
a { color: inherit; }

.eyebrow {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 14px;
}

.wordmark {
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  text-decoration: none;
  font-size: 0.95rem;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: color-mix(in srgb, var(--paper) 92%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 60px;
  flex-wrap: wrap;
}
nav { display: flex; gap: 22px; flex-wrap: wrap; }
nav a {
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--ink-soft);
}
nav a:hover { color: var(--ink); }

/* Hero */
.hero { padding: 72px 0 64px; }
.hero-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 48px;
  align-items: center;
}
.lede { font-size: 1.15rem; color: var(--ink-soft); max-width: 34em; }
.hero-logo {
  width: 100%;
  max-width: 230px;
  height: auto;
  justify-self: center;
}

.actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 28px; }
.button {
  display: inline-block;
  padding: 12px 20px;
  border-radius: 6px;
  border: 2px solid var(--ink);
  background: var(--ink);
  color: var(--paper);
  font-weight: 650;
  text-decoration: none;
}
.button:hover { background: #0e1c2b; }
.button.ghost { background: transparent; color: var(--ink); }
.button.ghost:hover { background: var(--paper-deep); }

/* Sections */
.band, .project { padding: 72px 0; border-top: 1px solid var(--line); }
.band, .project.alt { background: var(--paper-deep); }
.section-lede { color: var(--ink-soft); font-size: 1.08rem; max-width: 42em; margin-bottom: 36px; }

/* Pipeline diagram */
.flow {
  display: grid;
  grid-template-columns: 1fr 48px 1fr 48px 1fr;
  align-items: center;
}
.flow-col { display: grid; gap: 16px; }
.node {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 18px 20px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 8px;
  text-decoration: none;
  font-size: 0.92rem;
  color: var(--ink-soft);
}
.node strong { color: var(--ink); font-size: 1.08rem; }
a.node:hover { border-color: var(--ink); }
.node-kind {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
}
.node-main { background: var(--ink); border-color: var(--ink); color: #c3ced9; padding: 28px 22px; }
.node-main strong { color: #fff; }
.node-main .node-kind { color: #e9a987; }
.node-out { border-style: dashed; }
.flow-arrow { height: 2px; background: var(--ink); margin: 0 8px; position: relative; }
.flow-arrow::after {
  content: "";
  position: absolute;
  right: -1px;
  top: -5px;
  border-left: 9px solid var(--ink);
  border-top: 6px solid transparent;
  border-bottom: 6px solid transparent;
}

/* Projects */
.project-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}
.project-grid > * { min-width: 0; }
.points { list-style: none; padding: 0; margin: 24px 0; display: grid; gap: 14px; }
.points li { padding-left: 18px; border-left: 3px solid var(--line); color: var(--ink-soft); }
.points strong { color: var(--ink); }
.meta { font-size: 0.9rem; font-weight: 600; color: var(--ink-soft); }
.text-link { font-weight: 650; text-underline-offset: 4px; }
.text-link::after { content: " \2192"; }
.text-link:hover { color: var(--accent); }

.code {
  margin: 0;
  padding: 22px 24px;
  background: var(--code-bg);
  color: var(--code-ink);
  border-radius: 8px;
  font-family: var(--mono);
  font-size: 0.82rem;
  line-height: 1.7;
  overflow-x: auto;
}
.code .c { color: var(--code-dim); }

/* Real Test Pilot */
.steps {
  list-style: none;
  padding: 0;
  margin: 0 0 48px;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
}
.steps li {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 20px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 8px;
  font-size: 0.92rem;
  color: var(--ink-soft);
}
.steps strong { color: var(--ink); font-size: 1.05rem; }
.step-n {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--ink);
  color: var(--paper);
  display: grid;
  place-items: center;
  font-size: 0.85rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.roadmap { list-style: none; padding: 0; margin: 24px 0 0; display: grid; gap: 10px; }
.roadmap li {
  display: grid;
  grid-template-columns: 76px 1fr;
  gap: 14px;
  align-items: start;
  padding: 12px 14px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 8px;
  font-size: 0.95rem;
  color: var(--ink-soft);
}
.tag {
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  text-align: center;
  padding: 4px 0;
  border-radius: 4px;
  border: 1px solid var(--line);
}
.roadmap .done { color: var(--ink); }
.roadmap .done .tag { background: var(--ink); border-color: var(--ink); color: var(--paper); }
.roadmap .next { color: var(--ink); border-color: var(--accent); }
.roadmap .next .tag { background: var(--accent); border-color: var(--accent); color: #fff; }

/* Footer */
.site-footer { border-top: 1px solid var(--line); padding: 28px 0; font-size: 0.85rem; color: var(--ink-soft); }
.footer-row { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; align-items: center; }
.site-footer .wordmark { color: var(--ink); font-size: 0.82rem; }

/* Small screens */
@media (max-width: 820px) {
  .hero { padding: 48px 0; }
  .hero-grid, .project-grid { grid-template-columns: 1fr; gap: 32px; }
  .hero-logo { max-width: 170px; order: -1; justify-self: start; }
  .band, .project { padding: 52px 0; }
  .flow { grid-template-columns: 1fr; }
  .flow-arrow { width: 2px; height: 32px; margin: 8px auto; }
  .flow-arrow::after {
    right: auto;
    left: -5px;
    top: auto;
    bottom: -1px;
    border: 0;
    border-top: 9px solid var(--ink);
    border-left: 6px solid transparent;
    border-right: 6px solid transparent;
  }
  .steps { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 480px) {
  .steps { grid-template-columns: 1fr; }
  nav { gap: 14px; }
}