/* ==========================================================================
   The Formation Architect — Dr. Aisha Davis
   Brand system: radius 0 · no gradients · no shadows · no emoji · pillar bar 4:2:1
   ========================================================================== */

:root {
  /* Brand values (from export/README.txt) */
  --charcoal:   #2D2D2D;  /* structure + body text */
  --gold:       #C8A24A;  /* Formation pillar, accents — never text on Paper */
  --teal:       #00B4D8;  /* Innovation pillar, interaction — never text on Paper */
  --paper:      #F5F2EB;  /* default background */
  --gold-deep:  #7F631C;  /* gold-toned TEXT on Paper (5.1:1) */
  --teal-deep:  #00708A;  /* links / teal TEXT on Paper (5.1:1) */
  --stone:      #8A8578;  /* rules and decoration only */
  --stone-ink:  #6E6A5F;  /* stone-toned TEXT on Paper (4.8:1) */
  --stone-lite: #B5AFA1;  /* stone-toned TEXT on Charcoal (6.3:1) */

  --paper-dim:  #EBE7DD;  /* subtle surface separation on Paper */
  --charcoal-2: #383838;  /* raised surface on Charcoal */
  --rule:       #D8D3C6;  /* hairline on Paper */
  --paper-lift: #FBF9F4;  /* lifted band on Paper */
  --rule-dark:  rgba(245, 242, 235, 0.14);

  --display: "Montserrat", "Helvetica Neue", Arial, sans-serif;
  --body:    "Lato", "Helvetica Neue", Arial, sans-serif;

  --measure: 34rem;      /* readable line length */
  --gutter:  clamp(1.25rem, 5vw, 4rem);
  --wrap:    76rem;
  --section: clamp(4.5rem, 10vw, 8.5rem);
}

/* --- Reset ---------------------------------------------------------------- */

*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

body {
  background: var(--paper);
  color: var(--charcoal);
  font-family: var(--body);
  font-size: 16px;
  line-height: 1.6;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
}

img, svg { display: block; max-width: 100%; height: auto; }
button, input, textarea { font: inherit; color: inherit; }

/* Radius 0, everywhere, without exception. */
* { border-radius: 0 !important; }

/* --- Typography ----------------------------------------------------------- */

h1, h2, h3, h4 {
  font-family: var(--display);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -0.02em;
  text-wrap: balance;
}

h1 { font-size: clamp(2.6rem, 7vw, 5rem); }
h2 { font-size: clamp(2rem, 4.6vw, 3.25rem); }
h3 { font-size: clamp(1.25rem, 2.2vw, 1.6rem); letter-spacing: -0.01em; }
h4 { font-size: 1.0625rem; font-weight: 600; letter-spacing: 0; }

p  { max-width: var(--measure); }
p + p { margin-top: 1.15em; }

/* Vertical rhythm between headings and the copy that follows them. */
h1 + p, h1 + .lede,
h2 + p, h2 + .lede,
h3 + p, h3 + .lede,
h4 + p { margin-top: 1.25rem; }
h2 + .lede, h1 + .lede { margin-top: 1.75rem; }
.card h3 + p, .book h4 + p { margin-top: 0; }
.book__body p + p { margin-top: 0; }

.lede {
  font-size: clamp(1.125rem, 1.8vw, 1.375rem);
  line-height: 1.55;
  max-width: 40rem;
}

.eyebrow {
  font-family: var(--display);
  font-weight: 700;
  font-size: 0.75rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--gold-deep);
  margin-bottom: 1.25rem;
}
.eyebrow--stone { color: var(--stone-ink); }
.on-dark .eyebrow { color: var(--gold); }

a { color: var(--teal-deep); text-decoration: none; border-bottom: 1px solid currentColor; }
a:hover { color: var(--charcoal); }
.on-dark a { color: var(--paper); }
.on-dark a:hover { color: var(--gold); }

:focus-visible {
  outline: 3px solid var(--teal-deep);
  outline-offset: 3px;
}
.on-dark :focus-visible { outline-color: var(--teal); }

/* --- Layout --------------------------------------------------------------- */

.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.section { padding-block: var(--section); }
/* Anything the nav links to must clear the sticky header when targeted. */
main [id] { scroll-margin-top: 6.5rem; }
/* The pillar cards are nav destinations; mark the one you landed on. */
.card:target { outline: 2px solid var(--gold); outline-offset: -2px; }
.section--tight { padding-block: clamp(3rem, 6vw, 5rem); }

.on-dark {
  background-color: var(--charcoal);
  color: var(--paper);
}
.on-dark + .on-dark { border-top: 1px solid var(--rule-dark); }
/* Blueprint grid — hairlines only, as used across the brand assets. */
.blueprint {
  background-image:
    linear-gradient(to right,  var(--rule-dark) 1px, transparent 1px),
    linear-gradient(to bottom, var(--rule-dark) 1px, transparent 1px);
  background-size: 64px 64px;
  background-position: center top;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--charcoal);
  color: var(--paper);
  padding: 0.75rem 1.25rem;
  z-index: 100;
  border: 0;
}
.skip-link:focus { left: 0; }

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

/* --- Pillar bar (4:2:1) --------------------------------------------------- */

.pillar-bar {
  display: flex;
  height: 4px;
  width: 8.75rem; /* 4 + 2 + 1 units */
}
.pillar-bar span:nth-child(1) { flex: 4; background: var(--charcoal); }
.pillar-bar span:nth-child(2) { flex: 2; background: var(--gold); }
.pillar-bar span:nth-child(3) { flex: 1; background: var(--teal); }
.on-dark .pillar-bar span:nth-child(1) { background: var(--paper); }

/* --- Header --------------------------------------------------------------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--paper);
  border-bottom: 1px solid var(--rule);
}
.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  min-height: 4.75rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.875rem;
  border: 0;
  color: var(--charcoal);
}
.brand:hover { color: var(--charcoal); }
.brand img { width: 34px; height: 34px; }
.brand__name {
  font-family: var(--display);
  font-weight: 700;
  font-size: 0.8125rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  line-height: 1.3;
}
.brand__name span { color: var(--stone-ink); }

.nav { display: flex; align-items: center; gap: clamp(1rem, 2.2vw, 2rem); }
.nav a {
  font-family: var(--display);
  font-weight: 600;
  font-size: 0.8125rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--charcoal);
  border-bottom: 2px solid transparent;
  padding-block: 0.35rem;
  white-space: nowrap;
}
.nav a:hover, .nav a[aria-current="true"] { border-bottom-color: var(--gold); color: var(--charcoal); }

/* The nav CTA is a button first — .nav a must not repaint it. */
.nav a.btn { color: var(--paper); border-bottom: 2px solid var(--charcoal); }
.nav a.btn:hover { color: var(--paper); border-bottom-color: var(--gold-deep); }

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--charcoal);
  padding: 0.55rem 0.85rem;
  font-family: var(--display);
  font-weight: 600;
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  cursor: pointer;
}

@media (max-width: 72rem) {
  .nav-toggle { display: block; }
  .nav {
    display: none;
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--paper);
    border-bottom: 1px solid var(--rule);
    padding: 0.5rem var(--gutter) 1.5rem;
  }
  .nav[data-open="true"] { display: flex; }
  .nav a { padding-block: 0.9rem; border-bottom: 1px solid var(--rule); }
  .nav a:hover, .nav a[aria-current="true"] { border-bottom-color: var(--rule); color: var(--gold-deep); }
  .nav .btn { margin-top: 1rem; text-align: center; }
}

/* --- Buttons -------------------------------------------------------------- */

.btn {
  display: inline-block;
  font-family: var(--display);
  font-weight: 700;
  font-size: 0.8125rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 1rem 1.75rem;
  border: 2px solid var(--charcoal);
  background: var(--charcoal);
  color: var(--paper);
  cursor: pointer;
  transition: background-color 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}
.btn:hover { background: var(--gold-deep); border-color: var(--gold-deep); color: var(--paper); }

.btn--ghost { background: transparent; color: var(--charcoal); }
.btn--ghost:hover { background: var(--charcoal); border-color: var(--charcoal); color: var(--paper); }

.on-dark .btn { background: var(--paper); border-color: var(--paper); color: var(--charcoal); }
.on-dark .btn:hover { background: var(--gold); border-color: var(--gold); color: var(--charcoal); }
.on-dark .btn--ghost { background: transparent; color: var(--paper); }
.on-dark .btn--ghost:hover { background: var(--paper); color: var(--charcoal); }

.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.875rem;
  margin-top: 2.25rem;
}

/* --- Hero ----------------------------------------------------------------- */

.hero { padding-block: clamp(4rem, 9vw, 7.5rem) clamp(3.5rem, 7vw, 6rem); }
.hero__grid {
  display: grid;
  gap: clamp(3rem, 7vw, 5.5rem);
  grid-template-columns: minmax(0, 1fr);
  align-items: center;
}
@media (min-width: 62rem) {
  .hero__grid { grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr); }
}
.hero h1 { max-width: 15ch; }
.hero__figure { margin: 0; }
.hero__drawing { width: 100%; height: auto; display: block; }

/* Architectural corner brackets — gold leading, charcoal closing. */
.framed { position: relative; }
.framed::before, .framed::after {
  content: "";
  position: absolute;
  width: 3.5rem;
  height: 3.5rem;
  pointer-events: none;
}
.framed::before {
  top: -0.85rem; left: -0.85rem;
  border-top: 4px solid var(--gold);
  border-left: 4px solid var(--gold);
}
.framed::after {
  bottom: -0.85rem; right: -0.85rem;
  border-bottom: 4px solid var(--charcoal);
  border-right: 4px solid var(--charcoal);
}
.on-dark .framed::after { border-color: var(--paper); }

.hero__tagline {
  font-family: var(--display);
  font-weight: 700;
  font-size: clamp(1.1rem, 2.1vw, 1.5rem);
  color: var(--gold-deep);
  margin-top: 1.5rem;
}
.hero .lede { margin-top: 1.5rem; }

.hero__pillars {
  display: grid;
  justify-items: start;
  gap: 0.4rem;
  margin-top: 2.5rem;
  font-family: var(--display);
  font-weight: 600;
  font-size: 0.8125rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--stone-ink);
}
.hero__pillars span[aria-hidden] { display: none; }


/* --- Pillar cards --------------------------------------------------------- */

.grid-3 {
  display: grid;
  gap: 1px;
  background: var(--rule);
  border: 1px solid var(--rule);
  grid-template-columns: minmax(0, 1fr);
  margin-top: 3.5rem;
}
/* Straight from 1-up to 3-up: an intermediate 2-up leaves an empty cell that
   reads as a filled block against the grid's hairline background. */
@media (min-width: 60rem) {
  .grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}
.on-dark .grid-3 { background: var(--rule-dark); border-color: var(--rule-dark); }

.card {
  background: var(--paper);
  padding: clamp(1.75rem, 3vw, 2.5rem);
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.on-dark .card { background: var(--charcoal); }
.card__bar { height: 4px; width: 3rem; background: var(--gold); }
.card--teal .card__bar { background: var(--teal); }
.card--charcoal .card__bar { background: var(--charcoal); }
.on-dark .card--charcoal .card__bar { background: var(--paper); }
.card p { color: inherit; max-width: none; }

/* --- Split (About) -------------------------------------------------------- */

.split {
  display: grid;
  gap: clamp(2.5rem, 6vw, 5rem);
  grid-template-columns: minmax(0, 1fr);
  align-items: start;
}
@media (min-width: 56rem) {
  .split { grid-template-columns: 22rem minmax(0, 1fr); }
  .split--reverse { grid-template-columns: minmax(0, 1fr) 22rem; }
}
.portrait { border: 1px solid var(--rule); width: 100%; }
.portrait-wrap { max-width: 20rem; }
.portrait-wrap .framed { display: block; }
@media (max-width: 56rem) { .portrait-wrap { max-width: 16rem; } }
.on-dark .portrait { border-color: var(--rule-dark); }

.fact-list {
  list-style: none;
  padding: 0;
  margin-top: 2.5rem;
  border-top: 1px solid var(--rule);
}
.on-dark .fact-list { border-top-color: var(--rule-dark); }
.fact-list li {
  display: grid;
  gap: 0.25rem 2rem;
  padding-block: 1.125rem;
  border-bottom: 1px solid var(--rule);
}
.on-dark .fact-list li { border-bottom-color: var(--rule-dark); }
@media (min-width: 40rem) {
  .fact-list li { grid-template-columns: 11rem minmax(0, 1fr); }
}
.fact-list dt, .fact-list b {
  font-family: var(--display);
  font-weight: 700;
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--stone-ink);
}

/* --- Pull quote ----------------------------------------------------------- */

.quote {
  border-left: 4px solid var(--gold);
  padding-left: clamp(1.25rem, 3vw, 2.5rem);
  max-width: 46rem;
}
.quote p {
  font-family: var(--display);
  font-weight: 600;
  font-size: clamp(1.4rem, 3vw, 2.1rem);
  line-height: 1.25;
  letter-spacing: -0.015em;
  max-width: none;
}
.quote cite {
  display: block;
  margin-top: 1.5rem;
  font-family: var(--display);
  font-style: normal;
  font-weight: 600;
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--stone-lite);
}

/* --- Work / engagement list ----------------------------------------------- */

.work-list { list-style: none; padding: 0; margin-top: 3rem; border-top: 1px solid var(--rule); }
.on-dark .work-list { border-top-color: var(--rule-dark); }
.work-list > li { border-bottom: 1px solid var(--rule); padding-block: clamp(1.75rem, 3.5vw, 2.75rem); }
.on-dark .work-list > li { border-bottom-color: var(--rule-dark); }
.work-list__row { display: grid; gap: 1rem clamp(2rem, 5vw, 4rem); }
@media (min-width: 52rem) {
  .work-list__row { grid-template-columns: 4rem minmax(0, 20rem) minmax(0, 1fr); align-items: start; }
}
.work-list__num {
  font-family: var(--display);
  font-weight: 700;
  font-size: 1.5rem;
  color: var(--gold);
  line-height: 1.2;
}
.work-list p { max-width: 36rem; }
.on-dark .tags li { border-color: var(--rule-dark); }
.tags { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 1.25rem; list-style: none; padding: 0; }
.tags li {
  border: 1px solid var(--rule);
  padding: 0.35rem 0.7rem;
  font-family: var(--display);
  font-weight: 600;
  font-size: 0.6875rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--stone-lite);
}
/* --- What forms us -------------------------------------------------------- */

.forms-intro { max-width: 42rem; margin-top: 1.5rem; }

.forms-list {
  list-style: none;
  padding: 0;
  margin-top: 2.5rem;
  display: grid;
  gap: 1px;
  background: var(--rule-dark);
  border: 1px solid var(--rule-dark);
  grid-template-columns: repeat(auto-fit, minmax(13rem, 1fr));
}
.forms-list li {
  background: var(--charcoal);
  padding: 1rem 1.25rem;
  font-family: var(--display);
  font-weight: 600;
  font-size: 0.875rem;
  letter-spacing: 0.01em;
  color: var(--paper);
}

.quote--close { margin-top: 3rem; }
.quote--close p { font-size: clamp(1.2rem, 2.4vw, 1.7rem); }

/* --- Framework (formation at the centre) ---------------------------------- */

.framework { margin-top: 3rem; }
.framework__center {
  display: flex;
  flex-direction: column;
  align-items: center;
}
.framework__label {
  font-family: var(--display);
  font-weight: 700;
  font-size: 0.75rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--charcoal);
  border: 1px solid var(--charcoal);
  padding: 0.75rem 1.5rem;
  background: var(--paper);
}
.framework__stem {
  width: 1px;
  height: 2.75rem;
  background: var(--rule);
}
.framework .grid-3 { margin-top: 0; }

/* --- Formation Audit (signature engagement) ------------------------------- */

.audit {
  margin-top: 3rem;
  border: 1px solid var(--rule-dark);
  background: var(--charcoal-2);
}
.audit__bar { height: 4px; background: var(--gold); }
.audit__body {
  padding: clamp(1.75rem, 3.5vw, 2.75rem);
  display: grid;
  gap: 1.5rem clamp(2rem, 5vw, 4rem);
}
@media (min-width: 52rem) {
  .audit__body { grid-template-columns: minmax(0, 16rem) minmax(0, 1fr); }
}
.audit__kicker {
  font-family: var(--display);
  font-weight: 700;
  font-size: 0.6875rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 0.75rem;
  max-width: none;
}
.audit__line {
  font-family: var(--display);
  font-weight: 600;
  font-size: clamp(1.05rem, 1.9vw, 1.3rem);
  line-height: 1.35;
  color: var(--paper);
  max-width: 34rem;
}
.audit__line + p { margin-top: 1rem; }
.audit__domains {
  list-style: none;
  padding: 0;
  margin-top: 1.5rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.audit__domains li {
  border: 1px solid var(--rule-dark);
  padding: 0.35rem 0.7rem;
  font-family: var(--display);
  font-weight: 600;
  font-size: 0.6875rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--stone-lite);
}

/* Tertiary action: a small uppercase link with a moving arrow. */
.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--display);
  font-weight: 700;
  font-size: 0.6875rem;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--teal-deep);
  border-bottom: 0;
}
.link-arrow::after { content: "\2192"; transition: transform 0.15s ease; }
.link-arrow:hover { color: var(--charcoal); }
.link-arrow:hover::after { transform: translateX(3px); }
.on-dark .link-arrow { color: var(--teal); }
.on-dark .link-arrow:hover { color: var(--paper); }

/* --- Resources ------------------------------------------------------------ */

.res-group {
  margin-top: clamp(2.75rem, 5vw, 4rem);
  padding-top: clamp(2rem, 3.5vw, 2.75rem);
  border-top: 1px solid var(--rule);
}
.res-group__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.75rem 1.5rem;
  justify-content: space-between;
  margin-bottom: 1rem;
}
.res-group__head h3 { font-size: clamp(1.15rem, 1.9vw, 1.45rem); }
.res-group > p { max-width: 38rem; }
.res-note { margin-top: 1rem; font-size: 0.9375rem; color: var(--stone-ink); }

.badge {
  font-family: var(--display);
  font-weight: 700;
  font-size: 0.625rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gold-deep);
  border: 1px solid var(--rule);
  padding: 0.4rem 0.7rem;
}

/* --- Feature artwork ------------------------------------------------------ */

.feature-art { margin: 2rem 0 0; max-width: 44rem; }
.feature-art img { width: 100%; border: 1px solid var(--rule); }
.feature-art a { border-bottom: 0; display: block; }
.feature-art .framed { margin-bottom: 1.25rem; }
.feature-art figcaption {
  padding-right: 4rem;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.5rem 1.25rem;
}
.feature-art__label {
  font-family: var(--display);
  font-weight: 700;
  font-size: 0.6875rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--stone-ink);
}
.feature-art__link {
  font-family: var(--display);
  font-weight: 700;
  font-size: 0.6875rem;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  border-bottom: 0;
}
.feature-art__link::after { content: " \2192"; }

/* --- Books ---------------------------------------------------------------- */

.books {
  display: grid;
  gap: 1.25rem;
  grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr));
  margin-top: 1.75rem;
}
.book {
  border: 1px solid var(--rule);
  background: var(--paper);
  display: flex;
  flex-direction: column;
}
.book__spine { height: 4px; background: var(--gold); }
.book--teal .book__spine { background: var(--teal); }
.book--charcoal .book__spine { background: var(--charcoal); }
/* Covers sit on a tinted shelf; all three share a ratio so a fixed height
   lines them up regardless of card width. */
.book__cover {
  display: grid;
  place-items: center;
  padding: 1.75rem 1.5rem;
  background: var(--paper-dim);
  border-bottom: 1px solid var(--rule);
  border-radius: 0;
}
.book__cover img {
  height: 14rem;
  width: auto;
  max-width: 100%;
  border: 1px solid var(--rule);
}
@media (max-width: 46rem) { .book__cover img { height: 11rem; } }

.book__body {
  padding: clamp(1.4rem, 2.5vw, 1.9rem);
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
  flex: 1;
}
.book__kicker {
  font-family: var(--display);
  font-weight: 700;
  font-size: 0.625rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gold-deep);
}
.book__kicker--teal { color: var(--teal-deep); }
.book__author {
  font-size: 0.8125rem;
  color: var(--stone-ink);
  margin-top: -0.35rem;
}
.book h3 {
  font-family: var(--display);
  font-weight: 700;
  font-size: 1.0625rem;
  line-height: 1.3;
  letter-spacing: -0.01em;
}
.book h3 a { color: var(--charcoal); border-bottom: 0; }
.book h3 a:hover { color: var(--gold-deep); }
.book h4 {
  font-family: var(--display);
  font-weight: 700;
  font-size: 1.0625rem;
  line-height: 1.3;
  letter-spacing: -0.01em;
}
.book h4 a { color: var(--charcoal); border-bottom: 0; }
.book h4 a:hover { color: var(--gold-deep); }
.book p { max-width: none; font-size: 0.9375rem; }
.book__meta {
  margin-top: auto;
  padding-top: 0.4rem;
  font-size: 0.75rem;
  color: var(--stone-ink);
}
.book .link-arrow { align-self: start; }

/* --- Forms ---------------------------------------------------------------- */

.form { margin-top: 2.5rem; max-width: 36rem; }
.field { display: block; margin-bottom: 1.25rem; }
.field > span {
  display: block;
  font-family: var(--display);
  font-weight: 700;
  font-size: 0.6875rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--stone-ink);
  margin-bottom: 0.5rem;
}
.field input, .field textarea, .field select {
  width: 100%;
  background: transparent;
  border: 1px solid var(--rule);
  padding: 0.9rem 1rem;
  color: inherit;
}
.on-dark .field input, .on-dark .field textarea, .on-dark .field select {
  border-color: var(--rule-dark);
}
.field input::placeholder, .field textarea::placeholder { color: var(--stone-ink); }
.field input:focus, .field textarea:focus, .field select:focus { border-color: var(--teal); }
.field textarea { min-height: 8rem; resize: vertical; }

.inline-form { display: flex; flex-wrap: wrap; gap: 0.75rem; margin-top: 2rem; max-width: 32rem; }
.inline-form input { flex: 1 1 14rem; background: transparent; border: 1px solid var(--rule); padding: 1rem; color: inherit; }
.on-dark .inline-form input { border-color: var(--rule-dark); }
.inline-form .btn { flex: 0 0 auto; }

.form-note { font-size: 0.875rem; color: var(--stone-ink); margin-top: 1rem; }
.form-status { margin-top: 1rem; font-weight: 700; }

/* --- Utilities ------------------------------------------------------------ */

.section--lift { background: var(--paper-lift); }
.btn-row--tight { margin-top: 1.5rem; }
.fact-list--flush { margin-top: 2rem; border-top: 0; }
.hero h1 { margin-top: 2rem; }
.brand--reversed, .brand--reversed:hover { color: var(--paper); }
.brand--reversed .brand__name { color: var(--paper); }
.brand--reversed .brand__name span { color: var(--stone-ink); }
.footer__blurb {
  margin-top: 1.25rem;
  font-size: 0.875rem;
  color: var(--stone-lite);
  max-width: 20rem;
}
.colophon p { max-width: none; }

/* --- Footer --------------------------------------------------------------- */

.site-footer { border-top: 1px solid var(--rule-dark); }
.site-footer__grid {
  display: grid;
  gap: 2.5rem clamp(2rem, 5vw, 4rem);
  grid-template-columns: minmax(0, 1fr);
  padding-block: clamp(3rem, 6vw, 4.5rem);
}
@media (min-width: 34rem) { .site-footer__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (min-width: 62rem) { .site-footer__grid { grid-template-columns: minmax(0, 1.5fr) repeat(3, minmax(0, 1fr)); } }
.site-footer h4 {
  font-family: var(--display);
  font-weight: 700;
  font-size: 0.6875rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--stone-lite);
  margin-bottom: 1.125rem;
}
.site-footer ul { list-style: none; padding: 0; display: grid; gap: 0.75rem; }
.site-footer a { border-bottom: 0; }
.site-footer a:hover { border-bottom: 1px solid currentColor; }
.colophon {
  border-top: 1px solid var(--rule-dark);
  padding-block: 1.75rem;
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 2rem;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8125rem;
  color: var(--stone-lite);
}

/* --- Reveal on scroll (opacity only; no movement under reduced motion) ----- */

.reveal { opacity: 0; transform: translateY(12px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.is-visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; }
}
.no-js .reveal { opacity: 1; transform: none; }

@media print {
  .site-header, .nav-toggle, .btn { display: none; }
  body { background: #fff; color: #000; }
}

/* Stone-toned text needs a lighter value on Charcoal to clear 4.5:1. */
.on-dark .quote cite,
.on-dark .form-note,
.on-dark .feature-art__label,
.on-dark .book__meta,
.on-dark .res-note { color: var(--stone-lite); }