:root {
  --ink: #142033;
  --ink-soft: #3d4b5e;
  --paper: #f3efe6;
  --paper-2: #e7e1d4;
  --band: #f7f4ee;
  --line: #d5cdb8;
  --brass: #9a7430;
  --blue: #1d4f91;
  --card: #fffdf8;
  --shadow: 0 18px 40px rgba(20, 32, 51, 0.08);
  --serif: "Fraunces", "Iowan Old Style", Palatino, serif;
  --sans: "Figtree", "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: var(--sans);
  font-size: 1.05rem;
  line-height: 1.55;
}

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

img { display: block; }

.skip {
  position: absolute;
  left: 1rem;
  top: -3rem;
  background: var(--ink);
  color: var(--paper);
  padding: 0.4rem 0.7rem;
}

.skip:focus { top: 0.6rem; }

.wrap {
  width: min(1080px, calc(100% - 2.4rem));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(243, 239, 230, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}

.header-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 4rem;
  gap: 1rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  color: var(--ink);
  text-decoration: none;
  font-weight: 650;
  letter-spacing: 0.01em;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.site-nav a {
  color: var(--ink);
  text-decoration: none;
  font-size: 0.95rem;
}

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

.nav-github {
  border: 1px solid var(--ink);
  border-radius: 999px;
  padding: 0.3rem 0.75rem;
}

.nav-toggle {
  display: none;
  border: 1px solid var(--ink);
  background: transparent;
  color: var(--ink);
  border-radius: 999px;
  padding: 0.35rem 0.8rem;
  font: inherit;
}

.hero { padding: 4.5rem 0 3.5rem; }

.hero-grid {
  display: grid;
  grid-template-columns: 1.3fr 0.9fr;
  gap: 3rem;
  align-items: end;
}

.kicker {
  margin: 0 0 0.8rem;
  color: var(--brass);
  font-size: 0.82rem;
  font-weight: 650;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

h1, h2, h3 {
  font-family: var(--serif);
  font-weight: 560;
  letter-spacing: -0.02em;
  line-height: 1.12;
}

h1 {
  margin: 0 0 1rem;
  font-size: clamp(2.6rem, 5vw, 4.4rem);
}

h2 {
  margin: 0 0 0.8rem;
  font-size: clamp(2rem, 3vw, 2.8rem);
}

h3 { margin: 0 0 0.45rem; font-size: 1.45rem; }

.lede, .section-lead {
  color: var(--ink-soft);
  font-size: 1.15rem;
  max-width: 40rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.6rem;
}

.button {
  display: inline-block;
  background: var(--ink);
  color: var(--paper);
  text-decoration: none;
  border-radius: 999px;
  padding: 0.7rem 1.1rem;
  font-weight: 650;
}

.button:hover { background: var(--blue); color: white; }

.button-quiet {
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--ink);
}

.button-quiet:hover {
  background: var(--ink);
  color: var(--paper);
}

.board {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 1.1rem;
  box-shadow: var(--shadow);
  padding: 1.2rem 1.2rem 1rem;
}

.board-label {
  margin: 0 0 0.9rem;
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

.board-orch {
  display: flex;
  gap: 0.75rem;
  align-items: flex-start;
  padding-bottom: 0.9rem;
  border-bottom: 1px solid var(--line);
}

.board-orch strong, .board-agents strong { display: block; }

.board-orch span, .board-agents span {
  color: var(--ink-soft);
  font-size: 0.92rem;
}

.dot {
  width: 0.7rem;
  height: 0.7rem;
  margin-top: 0.35rem;
  border-radius: 50%;
  background: var(--brass);
  flex: none;
}

.board-agents {
  list-style: none;
  margin: 0.4rem 0 0;
  padding: 0;
}

.board-agents li {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.7rem 0;
  border-bottom: 1px solid var(--paper-2);
}

.board-foot {
  margin: 0.9rem 0 0.2rem;
  color: var(--ink-soft);
  font-size: 0.92rem;
}

section { padding: 4.2rem 0; }

.band {
  background: var(--band);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.section-index {
  margin: 0 0 0.4rem;
  color: var(--brass);
  font-weight: 650;
  letter-spacing: 0.12em;
}

.steps, .modes {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.2rem;
  margin-top: 2rem;
}

.modes { grid-template-columns: 1fr 1fr; }

.steps article, .modes article {
  background: var(--card);
  border-top: 3px solid var(--ink);
  padding: 1.2rem 1.15rem 1.3rem;
}

.modes article:last-child { border-top-color: var(--brass); }

.steps p, .modes p, .split p, .host-grid p { color: var(--ink-soft); }

.note {
  margin: 1.4rem 0 0;
  max-width: 46rem;
  color: var(--ink-soft);
}

.split, .host-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 2.5rem;
  align-items: start;
}

.checklist, .host-steps {
  margin: 0.4rem 0 0;
  padding: 0;
  list-style: none;
}

.checklist li, .host-steps li {
  padding: 0.85rem 0 0.85rem 1rem;
  border-left: 2px solid var(--brass);
  border-bottom: 1px solid var(--line);
}

.host-steps { counter-reset: step; }

.host-steps li {
  counter-increment: step;
  padding-left: 2.4rem;
  position: relative;
}

.host-steps li::before {
  content: counter(step);
  position: absolute;
  left: 0.7rem;
  font-family: var(--serif);
  color: var(--brass);
}

.tool-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  margin: 2rem 0 0;
}

.tool-grid div {
  padding: 1.15rem 1.2rem 1.2rem 0;
  border-top: 1px solid var(--line);
}

.tool-grid dt {
  font-weight: 650;
  margin-bottom: 0.25rem;
}

.tool-grid dd {
  margin: 0;
  color: var(--ink-soft);
}

.site-footer {
  border-top: 1px solid var(--line);
  padding: 1.4rem 0 2rem;
}

.footer-bar {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  color: var(--ink-soft);
  font-size: 0.95rem;
}

.footer-bar p { margin: 0; }

.missing {
  width: min(40rem, calc(100% - 2.4rem));
  margin: 18vh auto;
}

@media (max-width: 800px) {
  .nav-toggle { display: inline-block; }

  .site-nav {
    display: none;
    position: absolute;
    top: 4rem;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.2rem;
    padding: 0.6rem 1.2rem 1rem;
    background: var(--paper);
    border-bottom: 1px solid var(--line);
  }

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

  .site-nav a { padding: 0.45rem 0; }

  .hero-grid,
  .steps,
  .modes,
  .split,
  .host-grid,
  .tool-grid {
    grid-template-columns: 1fr;
  }

  .hero { padding-top: 2.6rem; }

  .footer-bar { flex-direction: column; }
}