/* Shared page chrome: brand mark, header, navigation and footer. */

/* Brand mark (bag symbol + wordmark) */

.brand {
  --mark-tile: var(--oxblood);
  --mark-bag: var(--cream);
  display: inline-flex;
  align-items: center;
  gap: 0.625rem;
  color: inherit;
  font-family: var(--font-sans);
  font-size: 1.25rem;
  font-weight: 600;
  letter-spacing: -0.025em;
  text-decoration: none;
}

.brand__mark {
  width: 2.125rem;
  height: 2.125rem;
  flex: none;
}

.brand__tile {
  fill: var(--mark-tile);
}

.brand__bag {
  fill: none;
  stroke: var(--mark-bag);
  stroke-width: 7;
  stroke-linecap: round;
}

/* Header */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  color: var(--ink);
  background: rgba(244, 239, 227, 0.9);
  border-bottom: 1px solid var(--line);
  transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}

@supports (backdrop-filter: blur(12px)) {
  .site-header {
    background: rgba(244, 239, 227, 0.78);
    backdrop-filter: saturate(1.4) blur(12px);
  }
}

.site-header[data-tone="dark"] {
  color: var(--on-dark);
  background: var(--oxblood);
  border-bottom-color: transparent;
  backdrop-filter: none;
}

.site-header[data-tone="dark"] .brand {
  --mark-tile: var(--cream);
  --mark-bag: var(--oxblood);
}

.site-header[data-tone="dark"] :focus-visible {
  outline-color: var(--cream);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  min-height: var(--header-height);
}

.site-nav__list {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.site-nav__link {
  display: inline-block;
  padding: 0.5rem 0.75rem;
  border-radius: 999px;
  font-size: 0.9375rem;
  font-weight: 500;
  text-decoration: none;
  opacity: 0.82;
  transition: opacity 0.2s ease, background-color 0.2s ease;
}

.site-nav__link:hover {
  opacity: 1;
  background: rgba(32, 31, 27, 0.06);
}

.site-header[data-tone="dark"] .site-nav__link:hover {
  background: rgba(244, 239, 227, 0.1);
}

.site-nav__toggle {
  display: none;
}

.site-header__back {
  font-size: 0.9375rem;
  font-weight: 500;
  text-decoration: none;
  opacity: 0.82;
}

.site-header__back:hover {
  opacity: 1;
  text-decoration: underline;
}

@media (max-width: 56rem) {
  .site-nav__toggle {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    min-height: 2.75rem;
    padding: 0.5rem 1rem;
    border: 1px solid currentColor;
    border-radius: 999px;
    background: transparent;
    color: inherit;
    font: inherit;
    font-size: 0.9375rem;
    font-weight: 600;
    cursor: pointer;
  }

  .site-nav__toggle-icon {
    position: relative;
    width: 1rem;
    height: 0.625rem;
  }

  .site-nav__toggle-icon::before,
  .site-nav__toggle-icon::after {
    content: "";
    position: absolute;
    left: 0;
    width: 100%;
    height: 1.5px;
    background: currentColor;
    transition: transform 0.25s var(--ease-out), top 0.25s var(--ease-out);
  }

  .site-nav__toggle-icon::before {
    top: 0;
  }

  .site-nav__toggle-icon::after {
    top: calc(100% - 1.5px);
  }

  .site-header[data-nav-open] .site-nav__toggle-icon::before {
    top: calc(50% - 0.75px);
    transform: rotate(45deg);
  }

  .site-header[data-nav-open] .site-nav__toggle-icon::after {
    top: calc(50% - 0.75px);
    transform: rotate(-45deg);
  }

  .site-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    display: none;
    padding: 0.5rem var(--gutter) 1.5rem;
    background: var(--cream);
    color: var(--ink);
    border-bottom: 1px solid var(--line);
    box-shadow: 0 1.5rem 2rem -1.5rem rgba(34, 13, 18, 0.35);
  }

  .site-header[data-tone="dark"] .site-nav {
    background: var(--oxblood);
    color: var(--on-dark);
    border-bottom-color: var(--on-dark-line);
  }

  .site-header[data-nav-open] .site-nav {
    display: block;
  }

  .site-nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }

  .site-nav__link {
    display: block;
    padding: 0.875rem 0;
    border-radius: 0;
    border-bottom: 1px solid var(--line);
    font-family: var(--font-serif);
    font-size: 1.375rem;
    opacity: 1;
  }

  .site-header[data-tone="dark"] .site-nav__link {
    border-bottom-color: var(--on-dark-line);
  }

  .site-nav__link:hover,
  .site-header[data-tone="dark"] .site-nav__link:hover {
    background: none;
  }
}

/* Footer */

.site-footer {
  padding-block: 4rem 2.5rem;
  background: var(--paper);
  border-top: 1px solid var(--line);
  color: var(--ink-soft);
  font-size: 0.9375rem;
}

.site-footer__grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 2.5rem;
}

.site-footer .brand {
  color: var(--ink);
}

.site-footer__tagline {
  margin-top: 1rem;
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-style: italic;
  color: var(--oxblood);
}

.site-footer__heading {
  margin-bottom: 0.875rem;
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  font-weight: 600;
  letter-spacing: 0;
  color: var(--ink);
}

.site-footer__links {
  margin: 0;
  padding: 0;
  list-style: none;
}

.site-footer__links a {
  display: inline-block;
  padding: 0.3rem 0;
  text-decoration: none;
}

.site-footer__links a:hover {
  color: var(--ink);
  text-decoration: underline;
}

.site-footer__bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.5rem 2rem;
  margin-top: 3.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.875rem;
}

.site-footer__bottom p {
  margin: 0;
}

@media (max-width: 44rem) {
  .site-footer__grid {
    grid-template-columns: 1fr 1fr;
  }

  .site-footer__about {
    grid-column: 1 / -1;
  }
}