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

:root {
  --light: #fff;
  --grid-gutter: 3vw;
  --feature-max-width: 1800px;
  --feature-column-gap: 11px;
  --inset-padding: 0vw;
  --cell-max-width: calc((var(--feature-max-width) - (var(--feature-column-gap) * (24 - 1))) / 24);
  --container-width: min(var(--feature-max-width), calc(100vw - (var(--grid-gutter) * 2) - var(--inset-padding)));
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  background: var(--bg, #fff);
}

body {
  background: var(--bg);
  color: var(--ink);
  font-family: 'Inter', sans-serif;
  font-weight: 300;
  opacity: 0;
  transition: opacity 0.42s cubic-bezier(0.16, 1, 0.3, 1);
}

body.page-ready {
  opacity: 1;
}

body.page-leaving {
  opacity: 0;
  pointer-events: none;
}

#mainNav {
  position: sticky;
  top: 0;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 42px;
  background: var(--bg);
  border-bottom: 1px solid transparent;
  transition: background 0.4s ease, border-color 0.3s, color 0.4s ease;
}

#mainNav.scrolled {
  border-color: var(--line);
}

#mainNav.menu-open {
  background: var(--dark);
  border-color: rgba(255, 255, 255, 0.07);
}

#mainNav.menu-open .nav-logo {
  color: #fff;
}

#mainNav.menu-open .nav-center {
  color: #fff;
}

#mainNav.menu-open .nav-dot {
  background: #fff;
}

#mainNav.menu-open .nav-menu {
  color: #fff;
}

.nav-logo {
  font-family: 'Inter', sans-serif;
  font-size: clamp(0.8rem, 1.1vw, 1rem);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--ink);
  font-weight: 600;
}

.nav-center {
  font-family: 'Inter', sans-serif;
  font-size: 0.65rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--mid);
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 18px;
}

.nav-dot {
  width: 8px;
  height: 8px;
  background: var(--ink);
  border-radius: 50%;
  animation: pulse 2.5s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

.nav-menu {
  font-family: 'Inter', sans-serif;
  font-size: clamp(0.8rem, 1.1vw, 1rem);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 600;
  color: var(--ink);
  background: none;
  border: none;
  padding: 4px 0;
}

.menu-overlay {
  position: fixed;
  top: 53px;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--dark);
  z-index: 9998;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.45s ease;
}

.menu-overlay.open {
  opacity: 1;
  pointer-events: all;
}

.menu-links {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 0 36px;
  gap: 0;
  background: none;
  text-transform: uppercase;
}

.menu-link {
  font-family: 'Inter', sans-serif;
  font-weight: 500;
  font-size: clamp(3.5rem, 8vw, 7.5rem);
  color: #f0ede6;
  text-decoration: none;
  line-height: 1;
  letter-spacing: -0.02em;
  transform: translateY(18px);
  transition: transform 0.5s ease;
  display: block;
  border-bottom: 2px solid rgba(84, 84, 84, 0.35);
  padding: 30px 0 40px;
}

.menu-link::after {
  content: none !important;
}

.menu-link-inner {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.menu-link-inner > .h1 {
  display: block;
  transform: translateX(0);
  transition: transform 0.46s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: transform;
}

.menu-link-arrow {
  position: relative;
  width: 1.2em;
  min-width: 1.2em;
  height: 1.2em;
  flex: none;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  pointer-events: none;
}

.menu-link-arrow-track {
  position: absolute;
  top: 50%;
  right: 0;
  width: 0.72em;
  height: 0.72em;
  transform: translate3d(-1.4em, -50%, 0) rotate(45deg);
  transition: transform 0.48s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: transform;
  backface-visibility: hidden;
}

.menu-link-arrow img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
  filter: invert(1);
}

.menu-overlay.open .menu-link {
  transform: translateY(0);
}

.menu-overlay.open .menu-link:nth-child(1) {
  transition-delay: 0.12s;
}

.menu-overlay.open .menu-link:nth-child(2) {
  transition-delay: 0.22s;
}

.menu-overlay.open .menu-link:nth-child(3) {
  transition-delay: 0.32s;
}

.menu-link:hover .menu-link-inner > .h1 {
  transform: translateX(26px);
}

.menu-link:hover .menu-link-arrow-track {
  transform: translate3d(-0.15em, -50%, 0) rotate(45deg);
}

footer img {
  display: block;
}

.footer-stacked {
  padding: 100px 28px;
  display: flex;
  justify-content: center;
  align-items: center;
  flex-direction: column;
  border-top: 1px solid var(--line);
}
.footer-stacked img { width: 32px; height: 32px;}

.footer-stacked .subtype-2 {
  padding-top: 42px;
}

.case-study-upcycled .divider {
  margin: 84px 0;
  background-color: var(--line);
  height: 1px;
}

.footer-compact {
  padding: 22px 28px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid var(--line);
}

.footer-compact .subtype-2 {
  font-family: 'Inter', sans-serif;
  font-size: 0.6rem;
  letter-spacing: 0.1em;
  color: var(--mid);
}

.menu-link .h1 { color: #fff; }

.subtype-2 {
  font-family: 'Inter', sans-serif;
  font-weight: 700;
  font-size: 14px;
  line-height: 15.6px;
  letter-spacing: 1.04px;
  text-align: center;
  vertical-align: bottom;
  text-transform: uppercase;
  color: var(--ink);
}

.subtype-3 {
  font-family: 'Inter', sans-serif;
  font-weight: 400;
  font-size: 0.75rem;
  line-height: 15.6px;
  letter-spacing: 0.16rem;
  vertical-align: middle;
  text-transform: uppercase;
  color: var(--ink);
}

.body-1 {
  font-family: 'Inter', sans-serif;
  font-weight: 400;
  font-size: 1.125rem;
  line-height: 1.3;
  letter-spacing: 0;
  vertical-align: middle;
  color: var(--ink);
}
.footer-stacked .subtype-2 { font-size: 0.75rem }

.h1 {
  font-family: 'Inter', sans-serif;
  font-weight: 600;
  font-size: 7.5rem;
  line-height: 0.95;
  letter-spacing: -0.02em;
  text-align: center;
  vertical-align: middle;
  text-transform: uppercase;
  color: var(--ink);
}

.h2 {
  font-family: 'Inter', sans-serif;
  font-weight: 600;
  font-size: clamp(2.5rem, 7vw, 5.5rem);
  line-height: 1;
  letter-spacing: -0.02em;
  text-align: center;
  vertical-align: middle;
  text-transform: uppercase;
  color: var(--ink);
}

.h3 {
  font-family: 'Inter', sans-serif;
  font-weight: 400;
  font-size: 32px;
  line-height: 40px;
  letter-spacing: 0;
  vertical-align: middle;
  color: var(--ink);
}

.cs-info-col .h2, .about-layout .h1 { text-align: left; vertical-align: left; }

.about-layout {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  column-gap: 21px;
  row-gap: 0;
  padding: 140px 42px;
  margin: 0 auto;
}

.about-layout > .h1 {
  grid-column: span 7;
}

.about-layout > .h3 {
  grid-column: span 5;
}

.error-page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.error-main {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 120px 28px 60px;
}

.error-card {
  width: min(100%, var(--container-width, min(1800px, calc(100vw - (3vw * 2)))));
  border: 1px solid var(--line);
  padding: 48px;
  display: grid;
  gap: 20px;
}

.error-code {
  font-family: 'Inter', sans-serif;
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--mid);
}

.error-title {
  font-family: 'Inter', sans-serif;
  font-weight: 600;
  font-size: clamp(3rem, 8vw, 6rem);
  line-height: 0.95;
  letter-spacing: -0.06em;
  text-transform: uppercase;
  color: var(--ink);
}

.error-copy {
  font-family: 'Inter', sans-serif;
  font-weight: 300;
  font-size: clamp(1rem, 2vw, 1.4rem);
  line-height: 1.4;
  color: var(--ink);
  max-width: 40rem;
}

.error-action {
  width: fit-content;
  font-family: 'Inter', sans-serif;
  font-weight: 600;
  font-size: 0.9rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink);
  text-decoration: none;
  border: 1px solid var(--ink);
  padding: 14px 18px;
  transition: background 0.25s ease, color 0.25s ease;
}

.error-action:hover {
  background: var(--ink);
  color: #fff;
}

.cs-hero {
  width: 100%;
  height: 100vh;
}

.cs-info {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  column-gap: 21px;
  row-gap: 0;
  padding: 100px 0;
  width: min(var(--container-width), calc(100vw - 84px));
  margin: 0 auto;
}

.cs-info-col {
  min-width: 0;
}

.cs-info-col:nth-child(1) {
  grid-column: span 6;
}

.cs-info-col:nth-child(2) {
  grid-column: span 3;
}

.cs-info-col:nth-child(3) {
  grid-column: span 3;
}

.cs-info .subtype-3 {
  display: block;
  color: var(--dark);
  padding-bottom: 14px;
}

.cs-info .body-1 + .body-1 {
  margin-top: 20px;
}

.cs-image-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
  padding: 28px;
  border-top: 1px solid var(--line);
}

.cs-image-col {
  background: var(--ink);
  background-size: cover;
  background-position: center;
  border-radius: 2px;
  overflow: hidden;
  aspect-ratio: 3 / 4;
}

.cs-image-col:nth-child(1) {
  background-image: url('assets/images/case-study/col1.jpg');
}

.cs-image-col:nth-child(2) {
  background-image: url('assets/images/case-study/col2.jpg');
}

.cs-gap {
  height: 76px;
}

.cs-pagination {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 21px;
  align-items: end;
  padding: 100px 28px 76px;
}

.cs-pagination-link {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--ink);
}

.cs-pagination-link.is-prev {
  grid-column: 1;
}

.cs-pagination-link.is-next {
  grid-column: 2;
  justify-self: end;
  text-align: right;
}

.pagination-text {
  font-family: 'Inter', sans-serif;
  font-size: clamp(0.7rem, 1.1vw, 1rem);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--ink);
  font-weight: 600;
}

.cs-pagination-icon {
  width: 18px;
  height: 18px;
  object-fit: contain;
  display: block;
}

.case-study-dark {
  background: #000;
  color: #fff;
}

.case-study-upcycled footer img, .case-study-upcycled .cs-pagination-icon {
  filter: none;
}

.case-study-upcycled ul li { padding-bottom: 10px; }
.case-study-upcycled ul li a { color: var(--ink); font-weight: 600; text-decoration: underline; }
.case-study-dark .subtype-3,
.case-study-dark .h2,
.case-study-dark .body-1,
.case-study-dark .subtype-2,
.case-study-dark .pagination-text {
  color: var(--light);
}

.case-study-dark footer img {
  filter: invert(1);
}

.case-study-dark .cs-pagination-icon {
  filter: invert(1);
}

.case-study-dark .footer-stacked,
.case-study-dark .footer-compact {
  border-top-color: rgba(255, 255, 255, 0.16);
}

.case-study-dark .cs-pagination {
  border-top-color: rgba(255, 255, 255, 0.16);
}

@media (max-width: 810px) {
  .about-layout {
    grid-template-columns: 1fr;
    gap: 28px;
    padding: 128px 42px 72px;
  }

  .error-card {
    padding: 36px 28px;
  }

  .cs-info {
    grid-template-columns: 1fr;
    gap: 40px;
    padding: 48px 28px 60px;
    width: auto;
  }

  .cs-info-col:nth-child(1),
  .cs-info-col:nth-child(2),
  .cs-info-col:nth-child(3) {
    grid-column: auto;
  }

  .cs-image-grid {
    gap: 14px;
    padding: 14px;
  }

  .cs-pagination {
    padding: 72px 28px 56px;
  }
}

@media (max-width: 600px) {
  #mainNav {
    padding: 14px 18px;
  }
  .menu-link .h1, .h1, .about-layout > .h1, .contact-page .h1 { font-size: 4rem; }
  .nav-center {
    display: none;
  }

  .about-layout {
    gap: 20px;
    padding: 104px 20px 56px;
  }

  .error-main {
    padding: 100px 18px 42px;
  }

  .error-card {
    padding: 28px 20px;
  }

  .cs-info {
    padding: 36px 20px 48px;
  }

  .cs-image-grid {
    grid-template-columns: 1fr;
    padding: 0;
    gap: 4px;
  }
  .contact-page .h1 { font-size: 2.5rem; text-align: left; }
  .contact-page img { width: 50px; height: 50px; }
  .cs-pagination {
    grid-template-columns: 1fr;
    gap: 20px;
    padding: 48px 20px 40px;
  }

  .cs-pagination-link.is-next {
    grid-column: auto;
    justify-self: start;
    text-align: left;
  }

  .cs-image-col {
    aspect-ratio: 4 / 3;
  }

  .footer-stacked {
    padding: 18px;
  }
}