/* Header */
.site-header {
  position: relative;
  z-index: 100;
  height: var(--header-h);
  background: var(--paper);
}

.site-header__inner {
  height: 100%;
  display: grid;
  grid-template-columns: minmax(120px, 1fr) auto minmax(120px, 1fr);
  gap: 28px;
  align-items: center;
}

.brand-lockup { width: fit-content; display: flex; align-items: center; }
.oooo-mark { display: inline-grid; grid-template-rows: repeat(4, 4px); gap: 3px; color: var(--ink); }
.oooo-mark i { width: 4px; height: 4px; display: block; border-radius: 50%; background: currentColor; }
.oooo-mark--header { grid-template-rows: repeat(4, 4px); gap: 3px; }
.oooo-mark--footer { grid-template-rows: repeat(4, 3px); gap: 3px; }
.oooo-mark--footer i { width: 3px; height: 3px; }
.oooo-mark--inverse { color: var(--paper); }

.site-nav { display: flex; align-items: center; justify-content: center; gap: clamp(20px, 2vw, 36px); }
.site-nav a,
.menu-toggle {
  position: relative;
  padding-block: 8px;
  font-size: 10px;
  font-weight: 400;
  letter-spacing: .09em;
  text-transform: uppercase;
}
.site-nav a::after {
  content: "";
  position: absolute;
  right: 50%;
  bottom: 2px;
  left: 50%;
  height: 1px;
  background: var(--ink);
  transition: right var(--motion-fast), left var(--motion-fast);
}
.site-nav a:hover::after,
.site-nav a[aria-current="page"]::after { right: 0; left: 0; }
.menu-toggle { display: none; cursor: pointer; }

.floating-brand,
.floating-menu-toggle {
  position: fixed;
  top: 22px;
  z-index: 180;
  color: var(--ink);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-9px);
  transition: opacity var(--motion-fast), visibility var(--motion-fast), transform var(--motion-fast);
}
.floating-brand { left: var(--page-margin); display: grid; }
.floating-menu-toggle { right: var(--page-margin); display: block; padding: 8px 0; }
.floating-brand.is-visible,
.floating-menu-toggle.is-visible { opacity: 1; visibility: visible; transform: none; }
.floating-menu-toggle::after { content: ""; position: absolute; right: 0; bottom: 3px; left: 0; height: 1px; background: currentColor; }

.page-progress {
  position: fixed;
  top: 50%;
  right: max(14px, calc(var(--page-margin) * .38));
  z-index: 80;
  display: grid;
  gap: 7px;
  transform: translateY(-50%);
  pointer-events: none;
}
.page-progress i {
  --strength: 0;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--ink);
  opacity: calc(.22 + (var(--strength) * .78));
  transform: scale(calc(.76 + (var(--strength) * .34)));
  transition: opacity 160ms linear, transform 160ms var(--ease-out);
}
.menu-open .floating-brand,
.menu-open .floating-menu-toggle,
.menu-open .page-progress { opacity: 0; visibility: hidden; }

/* Mobile navigation */
.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 300;
  display: flex;
  flex-direction: column;
  padding: 22px;
  background: var(--ink);
  color: var(--paper);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--motion-normal), visibility var(--motion-normal);
}
.mobile-menu.is-open { opacity: 1; visibility: visible; }
.mobile-menu__top { display: flex; align-items: center; justify-content: space-between; }
.mobile-menu .menu-toggle { display: block; color: var(--paper); }
.mobile-menu nav { width: min(720px, 70vw); display: grid; align-content: end; margin: auto 0 0 clamp(18vw, 24vw, 460px); padding-bottom: clamp(28px, 5vh, 74px); }
.mobile-menu nav a {
  display: block;
  width: fit-content;
  padding: 0;
  color: rgba(241, 239, 232, .38);
  font-family: var(--font-condensed);
  font-size: clamp(62px, 7vw, 118px);
  font-weight: 700;
  line-height: .84;
  letter-spacing: -.05em;
  text-transform: capitalize;
  transition: color var(--motion-fast), transform var(--motion-normal) var(--ease-out);
}
.mobile-menu nav a[aria-current="page"] { color: rgba(241, 239, 232, .62); }
.mobile-menu nav a:hover,
.mobile-menu nav a:focus-visible { color: var(--paper); transform: translateX(18px); }

/* Footer */
.site-footer { padding: 30px 0 42px; border-top: 1px solid var(--rule); }
.site-footer__row { display: grid; grid-template-columns: minmax(260px, 1fr) minmax(220px, .72fr) auto; gap: 40px; align-items: end; }
.site-footer__identity { display: grid; justify-items: start; }
.site-footer__tagline { margin-top: 12px; color: var(--muted); font-size: 9px; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; }
.site-footer__location { justify-self: start; text-align: left; }
.site-footer__contact { justify-self: end; }

/* Links and labels */
.editorial-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  width: fit-content;
  padding-bottom: 4px;
  border-bottom: 1px solid currentColor;
  font-size: 10px;
  font-weight: 400;
  letter-spacing: .1em;
  text-transform: uppercase;
}
.editorial-link span { transition: transform var(--motion-fast); }
.editorial-link:hover span { transform: translateX(5px); }
.annotation { display: inline-block; font-family: var(--font-serif); font-size: clamp(14px, 1vw, 17px); font-style: italic; line-height: 1.4; }

.section-index {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--muted);
}
.section-index::after { content: ""; width: 34px; height: 1px; background: currentColor; }

/* Shared project language */
.shift { display: flex; align-items: center; gap: .6em; font-weight: 700; text-transform: uppercase; }
.shift__arrow { opacity: .32; }
.diagram { width: 100%; min-height: 280px; }
.diagram line, .diagram path { fill: none; stroke: var(--ink); stroke-width: 1.2; }
.diagram circle { fill: var(--paper); stroke: var(--ink); stroke-width: 1.2; }
.diagram .active { fill: var(--orange); }
.diagram text { font: 11px var(--font-sans); letter-spacing: .05em; }

/* Work controls */
.work-filter {
  appearance: none;
  padding: 8px 0 7px;
  border-bottom: 1px solid transparent;
  color: var(--muted);
  cursor: pointer;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .085em;
  text-transform: uppercase;
  transition: color var(--motion-fast), border-color var(--motion-fast);
}
.work-filter:hover,
.work-filter.is-active { color: var(--blue); border-color: var(--blue); }

.project-preview {
  position: fixed;
  z-index: 90;
  width: min(350px, 25vw);
  aspect-ratio: 4 / 3;
  overflow: hidden;
  pointer-events: none;
  background: var(--paper-dark);
  border: 1px solid var(--ink);
  opacity: 0;
  transform: translate(14px, 14px) scale(.98);
  transition: opacity var(--motion-fast), transform var(--motion-fast);
}
.project-preview.is-visible { opacity: 1; transform: translate(14px, 14px) scale(1); }
.project-preview img { width: 100%; height: 100%; object-fit: cover; }

/* Language + full-screen navigation refinements */
.site-header__actions {
  justify-self: end;
  display: flex;
  align-items: center;
  gap: 24px;
}

.language-switch {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 9px;
  font-weight: 700;
  letter-spacing: .1em;
  line-height: 1;
  text-transform: uppercase;
  white-space: nowrap;
}

.language-switch a {
  color: var(--muted);
  transition: color var(--motion-fast), opacity var(--motion-fast);
}

.language-switch a:hover,
.language-switch a:focus-visible,
.language-switch a.is-active {
  color: var(--ink);
}

.language-switch a.is-active { pointer-events: none; }
.language-switch > span { color: var(--rule-dark); }

.mobile-menu__top-actions {
  display: flex;
  align-items: center;
  gap: clamp(22px, 3vw, 44px);
}

.mobile-menu .language-switch a { color: rgba(241, 239, 232, .36); }
.mobile-menu .language-switch a:hover,
.mobile-menu .language-switch a:focus-visible,
.mobile-menu .language-switch a.is-active { color: var(--paper); }
.mobile-menu .language-switch > span { color: rgba(241, 239, 232, .2); }

.mobile-menu nav {
  margin-top: auto;
  margin-bottom: auto;
  padding-top: clamp(64px, 8vh, 120px);
  padding-bottom: clamp(100px, 14vh, 170px);
}

.mobile-menu nav a {
  opacity: 0;
  translate: -14px 0;
  filter: blur(2px);
  transition:
    color var(--motion-fast),
    transform var(--motion-normal) var(--ease-out),
    opacity 480ms var(--ease-out),
    translate 620ms var(--ease-out),
    filter 520ms var(--ease-out);
  transition-delay: 0ms;
}

.mobile-menu.is-open nav a {
  opacity: 1;
  translate: 0 0;
  filter: blur(0);
  transition-delay: calc(55ms + (var(--menu-index, 0) * 42ms));
}

.mobile-menu__footer {
  position: absolute;
  right: 22px;
  bottom: 22px;
  left: 22px;
  display: grid;
  grid-template-columns: minmax(230px, 1fr) minmax(180px, .72fr) auto;
  gap: 40px;
  align-items: end;
  padding-top: 15px;
  border-top: 1px solid rgba(241, 239, 232, .18);
  color: rgba(241, 239, 232, .66);
}

.mobile-menu__footer-identity {
  display: grid;
  gap: 5px;
  justify-items: start;
  font-size: 9px;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
}

.mobile-menu__footer-identity .meta { color: var(--paper); }
.mobile-menu__footer-location { color: rgba(241, 239, 232, .62); }
.mobile-menu__footer-contact { justify-self: end; color: var(--paper); }

.oooo-mark i {
  transform-origin: center;
  transition: transform 280ms var(--ease-out), opacity 280ms var(--ease-out);
}

.brand-lockup:hover .oooo-mark i:nth-child(1),
.floating-brand:hover .oooo-mark i:nth-child(1),
.mobile-menu__top > a:hover .oooo-mark i:nth-child(1) { transform: translateY(-2px); }
.brand-lockup:hover .oooo-mark i:nth-child(2),
.floating-brand:hover .oooo-mark i:nth-child(2),
.mobile-menu__top > a:hover .oooo-mark i:nth-child(2) { transform: translateX(2px); }
.brand-lockup:hover .oooo-mark i:nth-child(3),
.floating-brand:hover .oooo-mark i:nth-child(3),
.mobile-menu__top > a:hover .oooo-mark i:nth-child(3) { transform: translateX(-2px); }
.brand-lockup:hover .oooo-mark i:nth-child(4),
.floating-brand:hover .oooo-mark i:nth-child(4),
.mobile-menu__top > a:hover .oooo-mark i:nth-child(4) { transform: translateY(2px); }

.mobile-menu__footer {
  opacity: 0;
  translate: 0 7px;
  transition: opacity 420ms var(--ease-out) 120ms, translate 520ms var(--ease-out) 120ms;
}
.mobile-menu.is-open .mobile-menu__footer { opacity: 1; translate: 0 0; }