/* Kin & Estate — site styles. Tokens live in tokens.css; no inline values. */
@import url("tokens.css");

* { box-sizing: border-box; margin: 0; }
html, body { overflow-x: clip; }
html { color-scheme: light; }

body {
  background: var(--color-paper);
  color: var(--color-ink);
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.6;
  font-feature-settings: "onum" 1; /* oldstyle figures in running text */
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 {
  font-family: var(--font-display);
  font-style: normal;
  font-weight: 600;
  line-height: 1.12;
  letter-spacing: -0.015em;
  overflow-wrap: anywhere;
  min-width: 0;
}

p { max-width: var(--measure); }

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

.visually-hidden {
  position: absolute; width: 1px; height: 1px;
  overflow: clip; clip-path: inset(50%); white-space: nowrap;
}

/* — The ledger rules: hairline = in progress · double (thin over thick) = settled — */
.rule-open {
  border: 0;
  border-top: var(--rule-hair) solid var(--color-rule);
}
.rule-settled {
  border: 0;
  border-top: var(--rule-hair) solid var(--color-ink);
  border-bottom: var(--rule-total) solid var(--color-ink);
  height: 3px;
  background: none;
}

/* — Small-caps label (track markers) — */
.label {
  font-family: var(--font-body);
  font-variant-caps: all-small-caps;
  letter-spacing: 0.1em;
  font-size: var(--text-sm);
  color: var(--color-accent);
  font-weight: 600;
}

/* — N6 masthead — */
.mast {
  display: grid;
  gap: var(--space-2xs);
  padding: var(--space-lg) var(--page-gutter) 0;
  text-align: center;
}
.mast__issue {
  font-family: var(--font-outlier);
  font-size: var(--text-xs);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-muted);
}
.mast__name {
  font-size: clamp(2.4rem, 5.5vw, 4rem);
  font-weight: 600;
  line-height: 1;
}
.mast__name .amp { color: var(--color-accent); font-weight: 300; }
.mast__nav ul {
  display: inline-flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-md);
  list-style: none;
  padding: 0;
  margin: var(--space-xs) 0 0;
}
.mast__nav a {
  color: var(--color-ink-2);
  text-decoration: none;
  font-size: var(--text-sm);
  white-space: nowrap;
}
.mast__nav a:hover { color: var(--color-accent); text-decoration: underline; text-decoration-thickness: 1px; }
.mast .rule-settled { margin-top: var(--space-md); }

/* — Page shell — */
.page { max-width: 72rem; margin-inline: auto; padding-inline: var(--page-gutter); }

/* — Hero diptych (H2 · 7/5 · vertical-rule divider) — */
.hero {
  display: grid;
  grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  gap: var(--space-2xl);
  padding-block: var(--space-2xl) var(--space-3xl);
  align-items: start;
}
.hero h1 { font-size: var(--text-display); font-weight: 300; max-width: 16ch; }
.hero__lede {
  margin-top: var(--space-md);
  font-size: var(--text-md);
  line-height: 1.55;
  color: var(--color-ink-2);
}
.hero__aside {
  border-left: var(--rule-hair) solid var(--color-rule);
  padding-left: var(--space-lg);
}

/* — Dot-leader index (the inventory motif) — */
.index { list-style: none; padding: 0; margin: var(--space-md) 0 0; max-width: 46ch; }
.index li {
  display: flex;
  align-items: baseline;
  gap: var(--space-xs);
  padding-block: var(--space-xs);
}
.index li + li { border-top: var(--rule-hair) solid var(--color-rule-2); }
.index .t { flex: none; max-width: 34ch; }
.index .dots {
  flex: 1;
  min-width: 2ch;
  border-bottom: 1px dotted var(--color-rule);
  transform: translateY(-0.3em);
}
.index .n {
  flex: none;
  font-family: var(--font-body);
  font-variant-numeric: tabular-nums lining-nums;
  font-size: var(--text-sm);
  color: var(--color-muted);
}

/* — Subscribe form (C2 inline-form-as-CTA) — */
.subscribe { margin-top: var(--space-xl); max-width: 34rem; }
.subscribe__label { display: block; font-size: var(--text-sm); color: var(--color-ink-2); margin-bottom: var(--space-xs); }
.subscribe__row {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  border-bottom: var(--rule-hair) solid var(--color-ink);
  padding-bottom: var(--space-2xs);
}
.subscribe input[type="email"] {
  flex: 1;
  min-width: 0;
  min-height: 44px;
  font: inherit;
  color: var(--color-ink);
  background: none;
  border: 0;
  padding: 0;
}
.subscribe input[type="email"]::placeholder { color: var(--color-muted); }
.subscribe button {
  flex: none;
  min-height: 44px;
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--color-accent);
  background: none;
  border: 0;
  padding-inline: var(--space-xs);
  cursor: pointer;
  white-space: nowrap;
  transition: transform var(--dur-micro) var(--ease-out);
}
.subscribe button:hover { transform: translateY(-1px); }
.subscribe button:active { transform: translateY(0); }
.subscribe button[disabled] { color: var(--color-muted); opacity: 0.55; cursor: not-allowed; transform: none; }
.subscribe__note { margin-top: var(--space-xs); min-height: 1lh; font-size: var(--text-sm); color: var(--color-muted); }
.subscribe__note[data-state="error"] { color: var(--color-error); }
.subscribe__note[data-state="success"] { color: var(--color-accent); }

/* — Alternating diptych sections (Split Studio body) — */
.dip {
  display: grid;
  grid-template-columns: minmax(0, 6fr) minmax(0, 6fr);
  gap: var(--space-2xl);
  padding-block: var(--space-2xl);
}
.dip + .dip { border-top: var(--rule-hair) solid var(--color-rule); }
.dip--rev .dip__text { order: 2; }
.dip--rev .dip__proof { order: 1; }
.dip h2 { font-size: var(--text-2xl); font-weight: 300; margin-top: var(--space-2xs); }
.dip__text p { margin-top: var(--space-md); color: var(--color-ink-2); }

/* — Principles spec-sheet (F3) — */
.principles { padding-block: var(--space-2xl); }
.principles h2 { font-size: var(--text-2xl); font-weight: 300; max-width: 26ch; }
.principles dl { margin: var(--space-lg) 0 0; max-width: 62rem; }
.principles .row {
  display: grid;
  grid-template-columns: minmax(11rem, 16rem) 1fr;
  gap: var(--space-lg);
  padding-block: var(--space-md);
  border-top: var(--rule-hair) solid var(--color-rule);
}
.principles .row:last-child { border-bottom: var(--rule-hair) solid var(--color-rule); }
.principles dt { font-family: var(--font-display); font-weight: 600; font-size: var(--text-md); }
.principles dd { margin: 0; color: var(--color-ink-2); max-width: var(--measure); }

/* — Founder note — */
.founder { padding-block: var(--space-2xl); display: grid; justify-items: start; }
.founder p { margin-top: var(--space-md); color: var(--color-ink-2); }
.founder .sig { font-family: var(--font-display); font-weight: 600; font-size: var(--text-md); margin-top: var(--space-lg); color: var(--color-ink); }

/* — Ft7 newsletter-first footer — */
.foot {
  margin-top: var(--space-xl);
  padding: var(--space-2xl) var(--page-gutter) var(--space-xl);
}
.foot__inner { max-width: 72rem; margin-inline: auto; display: grid; gap: var(--space-lg); }
.foot .rule-settled { margin-bottom: var(--space-lg); }
.foot__meta {
  font-family: var(--font-outlier);
  font-size: var(--text-xs);
  line-height: 1.8;
  color: var(--color-muted);
  max-width: none;
}
.foot__meta a { color: var(--color-muted); }

/* — Entrance: one orchestrated stagger, then the page settles — */
.reveal {
  opacity: 0;
  transform: translateY(8px);
  animation: reveal var(--dur-long) var(--ease-out) forwards;
  animation-delay: calc(var(--i, 0) * 70ms);
}
@keyframes reveal { to { opacity: 1; transform: none; } }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 150ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 1ms !important;
  }
  .reveal { animation: reveal-reduced 150ms linear forwards; }
  @keyframes reveal-reduced { to { opacity: 1; transform: none; } }
}

/* — Responsive · 60rem layout breakpoint — */
@media (max-width: 60rem) {
  .hero, .dip { grid-template-columns: 1fr; gap: var(--space-lg); }
  .hero { padding-block: var(--space-xl) var(--space-2xl); }
  .hero__aside { border-left: 0; border-top: var(--rule-hair) solid var(--color-rule); padding-left: 0; padding-top: var(--space-lg); }
  .dip--rev .dip__text { order: 1; }
  .dip--rev .dip__proof { order: 2; }
  .principles .row { grid-template-columns: 1fr; gap: var(--space-xs); }
}

/* — 40rem typography breakpoint — */
@media (max-width: 40rem) {
  .mast__name { font-size: clamp(2rem, 9vw, 2.6rem); }
  .hero h1 { font-size: var(--text-display-s); }
  .subscribe__row { flex-wrap: wrap; }
  .subscribe button { width: 100%; text-align: left; padding-inline: 0; }
  .index .t { max-width: none; }
}