/* ===== Azimuth — instrument frame + manifesto voice ===== */
@font-face {
  font-family: "Source Serif 4";
  src: url("./assets/serif-400.woff2") format("woff2");
  font-weight: 400; font-style: normal; font-display: swap;
}
@font-face {
  font-family: "Source Serif 4";
  src: url("./assets/serif-600.woff2") format("woff2");
  font-weight: 600; font-style: normal; font-display: swap;
}

:root {
  --ink: #0E1418;
  --surface: #11181C;
  --hairline: #243239;
  --text: #D6E0E4;
  --muted: #7E939B;
  --accent: #5FB3A3;
  --serif: "Source Serif 4", Georgia, "Times New Roman", serif;
  --mono: ui-monospace, "SF Mono", "Menlo", "Cascadia Mono", monospace;
  --maxw: 1080px;
  --readw: 640px;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
}

body {
  margin: 0;
  background: var(--ink);
  color: var(--text);
  font-family: var(--serif);
  font-size: 18px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-underline-offset: 3px; }
a:focus-visible, button:focus-visible, .btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.skip {
  position: absolute; left: -9999px; top: 0;
  background: var(--accent); color: var(--ink);
  padding: 10px 16px; font-family: var(--mono); font-size: 13px; z-index: 10;
}
.skip:focus { left: 12px; top: 12px; }

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 28px; }
.eyebrow {
  font-family: var(--mono); font-size: 12px; font-weight: 400;
  letter-spacing: .18em; text-transform: uppercase; color: var(--muted);
}
.section { border-top: 1px solid var(--hairline); padding: 84px 0; }
.section h2 {
  font-size: 14px; font-family: var(--mono); font-weight: 400;
  letter-spacing: .16em; text-transform: uppercase; color: var(--muted);
  margin: 0 0 36px; display: flex; align-items: center; gap: 12px;
}
.section h2 .mark { width: 18px; height: 18px; color: var(--muted); flex: none; }
.read { max-width: var(--readw); }

/* ---- top bar ---- */
.topbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 22px 0; border-bottom: 1px solid var(--hairline);
}
.brand { display: flex; align-items: center; gap: 11px; font-weight: 600; font-size: 19px; color: var(--text); text-decoration: none; }
.brand .mark { width: 24px; height: 24px; color: var(--text); }
.nav { display: flex; align-items: center; gap: 26px; font-family: var(--mono); font-size: 13px; }
.nav a { color: var(--muted); text-decoration: none; }
.nav a:hover { color: var(--text); }
.nav a.gh { color: var(--text); }
@media (max-width: 680px) { .nav a:not(.gh) { display: none; } }

/* ---- hero ---- */
.hero { padding: 104px 0 96px; }
.hero .eyebrow { margin-bottom: 26px; }
.hero h1 {
  font-size: clamp(2.4rem, 6vw, 4rem); line-height: 1.08;
  font-weight: 600; letter-spacing: -.015em; margin: 0 0 24px; max-width: 16ch;
}
.hero p { font-size: clamp(1.05rem, 2vw, 1.3rem); color: var(--text); max-width: 52ch; margin: 0 0 40px; }
.cta { display: flex; gap: 16px; flex-wrap: wrap; align-items: center; }
.btn {
  font-family: var(--mono); font-size: 14px; text-decoration: none;
  padding: 13px 22px; border-radius: 4px; display: inline-block;
}
.btn-primary { background: var(--accent); color: var(--ink); font-weight: 600; }
.btn-primary:hover { filter: brightness(1.08); }
.btn-ghost { color: var(--text); border: 1px solid var(--hairline); }
.btn-ghost:hover { border-color: var(--muted); }

/* ---- argument ---- */
.movement { margin-bottom: 44px; }
.movement .num {
  font-family: var(--mono); font-size: 13px; color: var(--accent);
  letter-spacing: .12em; display: block; margin-bottom: 10px;
}
.movement h3 { font-size: 1.5rem; font-weight: 600; margin: 0 0 12px; line-height: 1.25; }
.movement p { margin: 0; color: var(--text); }
.pull {
  border-left: 2px solid var(--accent); padding: 6px 0 6px 24px;
  font-size: 1.5rem; line-height: 1.4; color: var(--text);
  margin: 56px 0; max-width: var(--readw);
}
.footnote { font-family: var(--mono); font-size: 12.5px; color: var(--muted); margin-top: 40px; }
.footnote code { color: var(--text); }

/* ---- primitives ---- */
.grid3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--hairline); border: 1px solid var(--hairline); }
@media (max-width: 760px) { .grid3 { grid-template-columns: 1fr; } }
.prim { background: var(--ink); padding: 32px 28px; }
.prim .label { font-family: var(--mono); font-size: 12px; letter-spacing: .14em; text-transform: uppercase; color: var(--accent); }
.prim h3 { font-size: 1.3rem; font-weight: 600; margin: 14px 0 12px; }
.prim p { margin: 0; font-size: 1rem; color: var(--text); }
.prim code { font-family: var(--mono); font-size: .9em; color: var(--text); background: var(--surface); padding: 1px 6px; border-radius: 3px; }

/* ---- adopt ---- */
.adopt .lead { font-size: 1.3rem; margin: 0 0 28px; }
.qs { list-style: none; margin: 0 0 28px; padding: 0; }
.qs li { padding: 16px 0; border-top: 1px solid var(--hairline); font-size: 1.15rem; }
.qs li:last-child { border-bottom: 1px solid var(--hairline); }
.adopt .close { color: var(--text); }
.adopt code { font-family: var(--mono); font-size: .92em; color: var(--accent); }

/* ---- status strip ---- */
.status { background: var(--surface); border-top: 1px solid var(--hairline); border-bottom: 1px solid var(--hairline); }
.status .wrap { padding-top: 40px; padding-bottom: 40px; }
.status p { font-family: var(--mono); font-size: 14px; line-height: 1.8; color: var(--muted); margin: 0; }
.status code { color: var(--text); }

/* ---- footer ---- */
footer { padding: 48px 0 64px; }
footer .row { display: flex; flex-wrap: wrap; gap: 24px; font-family: var(--mono); font-size: 13px; }
footer a { color: var(--muted); text-decoration: none; }
footer a:hover { color: var(--text); }
footer .copy { color: var(--muted); margin-top: 18px; font-family: var(--mono); font-size: 12px; }

/* ---- progressive fade-in (JS adds .reveal; gated by reduced-motion) ---- */
.reveal { opacity: 0; transform: translateY(12px); transition: opacity .6s ease, transform .6s ease; }
.reveal.in { opacity: 1; transform: none; }

/* ---- argument: 3-column grid, oversized numerals ---- */
.movements { display: grid; grid-template-columns: repeat(3, 1fr); gap: 40px; margin-bottom: 56px; }
@media (max-width: 820px) { .movements { grid-template-columns: 1fr; gap: 36px; } }
.movements .movement { margin-bottom: 0; }
.movements .num {
  font-family: var(--mono); font-size: 2.6rem; line-height: 1;
  color: var(--hairline); letter-spacing: 0; display: block; margin-bottom: 14px;
}
.movements .movement h3 { font-size: 1.3rem; }
.pull cite {
  display: block; margin-top: 14px; font-style: normal;
  font-family: var(--mono); font-size: 13px; color: var(--muted);
}

/* ---- primitives flow diagram ---- */
.flowband { padding: 0 0 84px; }
.flow { display: block; width: 100%; max-width: 760px; height: auto; color: var(--hairline); margin: 0 auto; }
.flow text { font-family: var(--mono); font-size: 14px; fill: var(--text); }
.flow text.sm { font-size: 11px; fill: var(--muted); }

/* ---- adoption: step flow ---- */
.steps { list-style: none; counter-reset: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--hairline); border: 1px solid var(--hairline); }
@media (max-width: 760px) { .steps { grid-template-columns: 1fr; } }
.steps li { background: var(--ink); padding: 32px 28px; }
.steps .step-n { font-family: var(--mono); font-size: 12px; letter-spacing: .14em; text-transform: uppercase; color: var(--accent); }
.steps h3 { font-size: 1.2rem; font-weight: 600; margin: 14px 0 12px; }
.steps p { margin: 0; font-size: 1rem; color: var(--text); }
.steps code { font-family: var(--mono); font-size: .9em; color: var(--accent); }
.adopt .lead { margin-bottom: 36px; }

/* ---- status card ---- */
.statuscard { border: 1px solid var(--hairline); border-radius: 6px; padding: 28px 30px; max-width: 760px; }
.statuscard .label { font-family: var(--mono); font-size: 12px; letter-spacing: .14em; text-transform: uppercase; color: var(--accent); display: block; margin-bottom: 14px; }
.statuscard p { font-family: var(--mono); font-size: 14px; line-height: 1.7; color: var(--muted); margin: 0 0 10px; }
.statuscard p:last-child { margin-bottom: 0; }
.statuscard .ship strong { color: var(--text); font-weight: 600; }
.statuscard code { color: var(--text); }