/* Hallmark · genre: editorial · macrostructure: Long Document · theme: Newsprint · enrichment: none · nav: N6 · footer: Ft4 — see tokens.css for full stamp */
@import url("tokens.css");

/* ---------- base ---------- */
body {
  margin: 0;
  background: var(--color-paper);
  color: var(--color-ink);
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.62;
  font-kerning: normal;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}
* { box-sizing: border-box; min-width: 0; }

::selection { background: oklch(50% 0.19 27 / 0.16); }

a {
  color: var(--color-ink);
  text-decoration: underline;
  text-decoration-color: var(--color-accent);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
  transition: text-decoration-thickness var(--dur-micro) var(--ease-out), color var(--dur-micro) var(--ease-out);
}
a:hover { text-decoration-thickness: 2px; color: var(--color-accent); }
a:active { color: var(--color-accent); }
a:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 3px;
  border-radius: 1px;
}

/* ---------- masthead · N6 ---------- */
.nav-mast {
  display: grid;
  gap: var(--space-2xs);
  padding: var(--space-lg) var(--page-gutter) 0;
  text-align: center;
}
.mast-line {
  font-variant-caps: all-small-caps;
  letter-spacing: 0.09em;
  font-size: var(--text-sm);
  color: var(--color-muted);
  margin: 0;
}
.mast-name {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(2.1rem, 4.6vw, 3.4rem);
  letter-spacing: -0.01em;
  line-height: 1.04;
  overflow-wrap: anywhere;
  margin: 0;
}
.mast-nav ul {
  display: inline-flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-md) var(--space-lg);
  list-style: none;
  padding: 0;
  margin: var(--space-xs) 0 0;
}
.mast-nav a {
  font-variant-caps: all-small-caps;
  letter-spacing: 0.08em;
  font-size: var(--text-base);
  text-decoration: none;
  white-space: nowrap;
  padding: var(--space-xs) var(--space-2xs);
  display: inline-block;
}
.mast-nav a:hover { color: var(--color-accent); }
.mast-rule {
  border: 0;
  border-top: var(--rule-hair) solid var(--color-rule-dark);
  border-bottom: var(--rule-hair) solid var(--color-rule-dark);
  height: 4px;
  margin: var(--space-sm) 0 0;
  width: 100%;
}

/* ---------- document column · left-biased ---------- */
.doc {
  max-width: var(--measure);
  padding-inline: var(--page-gutter);
  margin-inline: max(var(--page-gutter), 9vw) auto;
  padding-block: var(--space-2xl) var(--space-3xl);
}

.doc h1 {
  font-family: var(--font-display);
  font-weight: 200;
  font-size: var(--text-display);
  line-height: 1.04;
  letter-spacing: -0.025em;
  overflow-wrap: anywhere;
  margin: 0 0 var(--space-xl);
  max-width: 14ch;
}
.doc h1 em { font-style: italic; font-weight: 340; }

.lede {
  font-family: var(--font-display);
  font-size: var(--text-md);
  font-weight: 380;
  line-height: 1.55;
  margin: 0 0 var(--space-lg);
}

.doc p { margin: 0 0 var(--space-lg); }
.doc .quiet { color: var(--color-muted); }

/* inline section heads · S4-adjacent, stacked (never margin-left tags) */
.doc h2 {
  font-family: var(--font-body);
  font-variant-caps: all-small-caps;
  font-weight: 600;
  letter-spacing: 0.07em;
  font-size: var(--text-md);
  line-height: 1.3;
  margin: var(--space-3xl) 0 var(--space-md);
}
.doc h2 .sysnum { color: var(--color-accent); font-variant-numeric: tabular-nums; }
.doc h2::after {
  content: "";
  display: block;
  width: 2.5rem;
  border-top: var(--rule-hair) solid var(--color-rule-dark);
  margin-top: var(--space-xs);
}

.stackline {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  color: var(--color-muted);
  letter-spacing: 0.01em;
  margin-top: calc(-1 * var(--space-sm));
}

/* ---------- F4 step sequence ---------- */
.steps {
  list-style: none;
  padding: 0;
  margin: 0 0 var(--space-lg);
  display: grid;
  gap: var(--space-md);
}
.steps li {
  display: grid;
  grid-template-columns: 3.2rem minmax(0, 1fr);
  gap: var(--space-md);
  align-items: baseline;
}
.steps .stage {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: var(--text-sm);
  color: var(--color-accent);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.04em;
}
.steps h3 {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: var(--text-base);
  display: inline;
  margin: 0;
}
.steps p { display: inline; margin: 0; }

/* ---------- F3 spec sheet ---------- */
.spec-sheet {
  width: 100%;
  border-collapse: collapse;
  margin: 0 0 var(--space-lg);
  font-variant-numeric: tabular-nums;
}
.spec-sheet th {
  text-align: left;
  font-weight: 600;
  font-size: var(--text-sm);
  font-variant-caps: all-small-caps;
  letter-spacing: 0.06em;
  padding: var(--space-sm) var(--space-lg) var(--space-sm) 0;
  vertical-align: top;
  white-space: nowrap;
  width: 11rem;
}
.spec-sheet td {
  padding: var(--space-sm) 0;
  vertical-align: top;
  font-size: var(--text-base);
}
.spec-sheet tr { border-top: var(--rule-hair) solid var(--color-rule); }
.spec-sheet tr:first-child { border-top: 0; }

/* ---------- T4 stat strip · full-width grid-break ---------- */
.stat-strip-wrap {
  background: var(--color-paper-2);
  border-block: var(--rule-hair) solid var(--color-rule);
  margin-block: var(--space-2xl);
}
.stat-strip {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: var(--space-lg);
  max-width: 72rem;
  margin-inline: auto;
  padding: var(--space-xl) var(--page-gutter);
}
.stat-strip > div { display: grid; gap: var(--space-2xs); align-content: start; }
.stat-strip b {
  font-family: var(--font-outlier);
  font-weight: 500;
  font-size: var(--text-xl);
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.01em;
  line-height: 1.1;
}
.stat-strip span {
  font-size: var(--text-sm);
  color: var(--color-muted);
  line-height: 1.45;
}

/* ---------- contact + colophon · Ft4 ---------- */
.contact { margin-top: var(--space-2xl); }
.contact .link { font-weight: 600; }

.foot-dense {
  border-top: var(--rule-hair) solid var(--color-rule-dark);
  margin-top: var(--space-3xl);
  padding: var(--space-lg) var(--page-gutter) var(--space-2xl);
}
.foot-dense p {
  font-family: var(--font-outlier);
  font-size: var(--text-sm);
  line-height: 1.7;
  color: var(--color-muted);
  max-width: 72rem;
  margin: 0 auto;
}
.foot-dense a { color: var(--color-muted); }
.foot-dense a:hover { color: var(--color-accent); }

/* ---------- responsive ---------- */
@media (max-width: 60rem) {
  .doc { margin-inline: auto; }
  .stat-strip { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 40rem) {
  .doc { padding-block: var(--space-xl) var(--space-2xl); }
  .doc h2 { margin-top: var(--space-2xl); }
  .stat-strip { grid-template-columns: 1fr; gap: var(--space-md); }
  .steps li { grid-template-columns: 2.4rem minmax(0, 1fr); gap: var(--space-sm); }
  .spec-sheet, .spec-sheet tbody, .spec-sheet tr, .spec-sheet th, .spec-sheet td { display: block; width: 100%; }
  .spec-sheet th { padding-bottom: 0; }
  .spec-sheet td { padding-top: var(--space-2xs); }
  .mast-nav a { min-height: 44px; display: inline-flex; align-items: center; }
}

/* ---------- reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 150ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 150ms !important;
  }
}