/* ============================================================
   layout.css — containers, grids, section rhythm, header, footer
   ============================================================ */

/* --- Containers --- */
.container {
  width: min(100% - (var(--gutter) * 2), var(--content-wide));
  margin-inline: auto;
}

.container--mid {
  width: min(100% - (var(--gutter) * 2), var(--content-mid));
  margin-inline: auto;
}

.container--readable {
  width: min(100% - (var(--gutter) * 2), var(--content-readable));
  margin-inline: auto;
}

/* --- Section spacing --- */
.section {
  padding-block: clamp(3.25rem, 7vw, 7rem);
}

.section--compact {
  padding-block: clamp(2rem, 4vw, 4rem);
}

.section--ink {
  background: var(--color-bg-ink);
  color: var(--color-text-onink);
}

.section--stone {
  background: var(--color-bg-secondary);
}

.section--ink h1,
.section--ink h2,
.section--ink h3 {
  color: var(--color-text-onink);
}

/* --- Section heading block --- */
.section-head {
  max-width: 40rem;
  margin-bottom: clamp(2rem, 4vw, 3.25rem);
}

.section-head--center {
  margin-inline: auto;
  text-align: center;
}

.section-head .eyebrow {
  margin-bottom: var(--space-3);
}

.section-head p {
  margin-top: var(--space-4);
  color: var(--color-text-secondary);
}

.section--ink .section-head p {
  color: var(--color-text-onink-soft);
}

/* --- Grids --- */
.grid {
  display: grid;
  gap: var(--space-5);
}

.grid--2,
.grid--3,
.grid--4 {
  grid-template-columns: 1fr;
}

@media (min-width: 40rem) {
  .grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid--3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid--4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (min-width: 64rem) {
  .grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .grid--4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}

/* Split layout (image + copy) */
.split {
  display: grid;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
}

@media (min-width: 52rem) {
  .split {
    grid-template-columns: var(--split-cols, 1fr 1fr);
  }
  .split--reverse .split__media {
    order: 2;
  }
}

/* ============================================================
   Site header
   ============================================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: color-mix(in srgb, var(--color-bg-primary) 88%, transparent);
  backdrop-filter: saturate(140%) blur(10px);
  -webkit-backdrop-filter: saturate(140%) blur(10px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.site-header[data-scrolled="true"] {
  border-bottom-color: var(--color-border);
  background: color-mix(in srgb, var(--color-bg-primary) 96%, transparent);
}

.site-header__inner {
  min-height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-5);
}

/* Wordmark — typographic identity (no graphic logo) */
.wordmark {
  display: inline-flex;
  flex-direction: column;
  line-height: 1;
  gap: 0.18rem;
}

.wordmark__name {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.7rem;
  letter-spacing: 0.01em;
}

.wordmark__desc {
  font-family: var(--font-body);
  font-size: 0.6rem;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--color-text-secondary);
}

/* Primary navigation */
.primary-nav {
  display: none;
}

@media (min-width: 60rem) {
  .primary-nav {
    display: flex;
    align-items: center;
    gap: clamp(1.25rem, 2.5vw, 2.25rem);
  }
}

.primary-nav__link {
  position: relative;
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--color-text-primary);
  padding-block: 0.35rem;
  transition: color var(--dur) var(--ease);
}

.primary-nav__link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -0.15rem;
  width: 100%;
  height: 2px;
  background: var(--color-accent-strong);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--dur) var(--ease);
}

.primary-nav__link:hover {
  color: var(--color-accent-strong);
}

.primary-nav__link:hover::after,
.primary-nav__link[aria-current="page"]::after {
  transform: scaleX(1);
}

.primary-nav__link[aria-current="page"] {
  color: var(--color-accent-strong);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

/* Primary CTA in the header shows on desktop; on mobile it lives in
   the collapsed menu so the compact header never crowds. Selector is
   scoped (.header-actions .header-cta) so it beats .button's display. */
.header-actions .header-cta {
  display: none;
}

@media (min-width: 60rem) {
  .header-actions .header-cta {
    display: inline-flex;
  }
}

/* ============================================================
   Mobile navigation
   ============================================================ */
.nav-toggle {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  align-items: center;
  border-radius: var(--radius-sm);
}

@media (min-width: 60rem) {
  .nav-toggle { display: none; }
}

.nav-toggle__bar {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-text-primary);
  transition: transform var(--dur) var(--ease), opacity var(--dur) var(--ease);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(2) {
  opacity: 0;
}
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.mobile-nav {
  display: none;
  border-top: 1px solid var(--color-border);
  background: var(--color-bg-primary);
}

.mobile-nav[data-open="true"] {
  display: block;
}

@media (min-width: 60rem) {
  .mobile-nav { display: none !important; }
}

.mobile-nav__list {
  display: flex;
  flex-direction: column;
  padding-block: var(--space-3);
}

.mobile-nav__link {
  display: block;
  padding: 0.85rem var(--gutter);
  font-size: 1.05rem;
  font-weight: 600;
  border-bottom: 1px solid var(--color-border);
}

.mobile-nav__link[aria-current="page"] {
  color: var(--color-accent-strong);
}

.mobile-nav__cta {
  padding: var(--space-4) var(--gutter) var(--space-5);
}

/* ============================================================
   Footer
   ============================================================ */
.site-footer {
  background: var(--color-bg-ink);
  color: var(--color-text-onink-soft);
  padding-block: clamp(2.75rem, 5vw, 4.5rem);
  font-size: var(--text-sm);
}

.site-footer a {
  color: var(--color-text-onink-soft);
  transition: color var(--dur) var(--ease);
  overflow-wrap: break-word;
}

.site-footer a:hover {
  color: var(--color-text-onink);
}

.site-footer__top {
  display: grid;
  gap: var(--space-7);
  grid-template-columns: 1fr;
  padding-bottom: var(--space-6);
  border-bottom: 1px solid rgba(247, 241, 233, 0.12);
}

@media (min-width: 48rem) {
  .site-footer__top {
    grid-template-columns: 1.4fr 1fr 1fr;
    gap: var(--space-6);
  }
}

.site-footer__brand .wordmark__name {
  color: var(--color-text-onink);
  font-size: 1.9rem;
}

.site-footer__brand .wordmark__desc {
  color: var(--color-text-onink-soft);
}

.site-footer__brand p {
  margin-top: var(--space-4);
  max-width: 26rem;
  color: var(--color-text-onink-soft);
}

.footer-col__title {
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-text-onink);
  margin-bottom: var(--space-4);
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.site-footer__bottom {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3) var(--space-5);
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-5);
  font-size: var(--text-xs);
  color: var(--color-text-onink-soft);
}

.site-footer__bottom a {
  text-decoration: underline;
  text-underline-offset: 0.18em;
}

/* Understated design credit — sits with the copyright, never competes */
.site-footer__credit {
  flex-basis: 100%;
  order: 3;
  margin-top: var(--space-2);
  opacity: 0.82;
}

@media (min-width: 52rem) {
  .site-footer__credit {
    flex-basis: auto;
    order: 0;
    margin-top: 0;
  }
}