:root {

  --vw-min: 360;
  --vw-max: 900;

  /* COLOR TOKENS */
  --color-text-primary: #1E1E24;
  --color-text-secondary: #505160;
  --color-divider: #E8ECF0;
  --color-low-contrast: #A4A6B5;
  --color-high-contrast: #ffffff;
  --color-hover-bg: rgba(47, 48, 56, 0.04);
  --color-black: #000;
  --color-ref-bg: #F6F8FA;

  /* LAYOUT TOKENS */
  --header-height: 64px;
  --site-max: 1800px;
  --gutter: 40px;
  --spacing-xsmall: 8px;
  --spacing-small: 16px;
  --spacing-medium: 24px;
  --spacing-large: 32px;
  --spacing-xlarge: 40px;
  --spacing-header: 140px;
  --page-pad: 160px;
  --rail-gap: 40px;
  --align-desktop-center: center;
  --align-mobile-start: left;

  /* TYPOGRAPHY */
  --font-sans: "Archivo", system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
  --font-display: "Jost", var(--font-sans);
  --font-size-base: 1.125rem;
  --step-1: clamp(2.25rem, calc(1.5rem + 2vw), 3.75rem);
  --step-2: clamp(1.75rem, calc(1.5rem + 1.25vw), 2.75rem);
  --step-3: clamp(1.25rem, calc(1.2rem + 1.25vw), 1.575rem);

  /* MOTION & SHAPE */
  --transition-default: all 0.4s ease;
  --radius-lg: 16px;
  --radius-pill: 999px;
}

html {
  box-sizing: border-box;
  height: auto;
  scroll-behavior: smooth;
}

*, *::before, *::after {
  box-sizing: inherit;
}

body {
  color: var(--color-text-secondary);
  font-family: var(--font-sans);
  font-size: var(--font-size-base);
  -webkit-font-smoothing: antialiased;
  font-weight: 400;
  margin: 0;
  min-height: 100vh;
  height: auto;
}

/* TYPOGRAPHY */

h1, h2, h3, .display {
  font-family: var(--font-sans);
  margin: 0;
  padding: 0 0 var(--spacing-small) 0;
  line-height: 1.1;
  color: var(--color-text-primary);
}
h1 {
  font-size: var(--step-1);
  font-weight: 100;
  padding-top: var(--spacing-header);
}
h2 {
  font-size: var(--step-2);
  font-weight: 200;
}
h3 {
  font-size: var(--step-3);
  font-weight: 300;
}
h5, h6{
  font-size: 1.125rem;
  font-weight: 500;
  line-height: 1.2;
  margin: 0;
  padding: 0;
  color: var(--color-text-primary);
}
h6{
  font-size: 1.2rem;
  line-height:1.5;
}
p, li {
  font-family: var(--font-display);
  margin: 0;
  padding: 0 0 var(--spacing-small) 0;
}
p a{
  color: var(--color-text-primary);
  font-weight: 500;
  text-decoration: none;
}
p a:hover {
  text-decoration: underline
}
li{
  padding: 0px;
}
ul {
  padding-bottom: var(--spacing-small);
}
.u-center-desktop {
  text-align: var(--align-desktop-center);
}

.radius-none {
  border-radius: 0 !important
}

/* ASPECT RATIO */
.ratio-16-9  { aspect-ratio: 16 / 9; }
.ratio-16-12 { aspect-ratio: 16 / 12; }
.ratio-16-10 { aspect-ratio: 16 / 10; }
.ratio-16-8  { aspect-ratio: 16 / 8; }
.ratio-1-1   { aspect-ratio: 1 / 1; }

.ratio-16-9  .project-media { aspect-ratio: 16 / 9; }
.ratio-16-10 .project-media { aspect-ratio: 16 / 10; }
.ratio-16-12 .project-media { aspect-ratio: 16 / 12; }
.ratio-16-8  .project-media { aspect-ratio: 16 / 8; }


/* GRID SYSTEM */
.container {
  max-width: var(--site-max);
  margin-inline: auto;
  padding-inline: var(--page-pad);
  box-sizing: border-box;
}
.grid-12 {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: var(--gutter);
}
.col-span-12 { grid-column: span 12; }
.col-span-8  { grid-column: span 8; }
.col-span-6  { grid-column: span 6; }
.col-span-4  { grid-column: span 4; }
.col-span-3  { grid-column: span 3; }
.col-span-2  { grid-column: span 2; }
.col-span-1  { grid-column: span 1; }

.hr, .hr-small {
  background-color: transparent;
  margin: var(--spacing-xlarge) 0;
  width: 100%;
  height: 1px;
}
.hr-small {
  margin: var(--spacing-small) 0;
}

/* VIDEOS */
.embed {
  width: 100%;
  aspect-ratio: 16 / 9;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--color-black);
  border: 1px solid var(--color-text-primary);
}

.embed iframe {
  width: 101%;
  height: 101%;
  transform: translate(-0.25%, -0.25%);
  border: 0;
  outline: none;
  box-shadow: none;
  display: block;
  background: var(--color-black);
}


/* HEADER */
.site-header {
  height: var(--header-height);
  position: relative;
  display: flex;
  align-items: center;
  z-index: 10;
  border-bottom: 1px solid var(--color-divider);
}

.site-header .container,
.site-footer .container {
  width: 100%;
}

.site-header .logo {
  position: absolute;
  left: 0;
  top: 0;
  width: var(--header-height);
  height: var(--header-height);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  border-right: 1px solid var(--color-divider);
}

.header-grid,
.footer-grid {
  align-items: center;
}

.header-title {
  display: flex;
  gap: var(--spacing-medium);
  align-items: baseline;
  min-width: 0;
}

.site-name {
  font-family: var(--font-sans);
  color: var(--color-text-primary) !important;
  font-weight: 500;
  text-decoration: none;
  color: inherit;
}

.site-role {
  font-family: var(--font-sans);
  color: var(--color-text-secondary);
  font-weight: 300;
}

.site-name,
.site-role {
  white-space: nowrap;
}

/* NAVIGATION */
.header-nav {
  display: flex;
  justify-content: flex-end;
  gap: var(--spacing-small);
  align-items: center;
}

.nav-link {
  text-decoration: none;
  color: inherit;
  height: 40px;
  line-height: 38px;
  border-radius: var(--radius-pill);
  padding: 0 20px;
  font-weight: 400;
  border: 1px solid white;
  transition: var(--transition-default);
  color: var(--color-text-primary);
}

.nav-link:hover {
  opacity: 1;
  border: 1px solid var(--color-text-primary);
}

.nav-link.is-active {
  background: var(--color-text-primary);
  color: white;
  border: 1px solid var(--color-text-primary);
}

.logo img{
  display: block;
  width: 24px;
  height: 20px;
}

.nav-desktop {
  display: flex;
  justify-content: flex-end;
  gap: var(--spacing-small);
  align-items: center;
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid transparent;
  background: transparent;
  border-radius: var(--radius-pill);
  align-items: center;
  justify-content: center;
  color: var(--color-text-primary);
  cursor: pointer;
}

.nav-toggle .icon-close {
  display: none;
}

.mobile-menu[hidden] {
  display: none;
}

.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 50;
  overscroll-behavior: contain;
}

.mobile-menu__backdrop {
  position: absolute;
  inset: 0;
  background: transparent
}

.mobile-menu__panel {
  position: fixed;
  top: var(--header-height);
  right: 0;
  left: 0;
  bottom: 0;
  background: white;
  padding: var(--spacing-medium) var(--spacing-xsmall);
  height:100%;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}

.mobile-menu__links {
  display: grid;
  gap: var(--spacing-xsmall);
}

.mobile-link {
  display: block;
  text-decoration: none;
  color: inherit;
  padding: 14px 14px;
  border-radius: 12px;
  border: 1px solid transparent;
  font-size: 1.125rem;
}

.mobile-link:hover {
  border-color: var(--color-divider);
  background: var(--color-hover-bg);
}

body.menu-open .nav-toggle .icon-menu {
  display: none;
}
body.menu-open .nav-toggle .icon-close {
  display: inline-flex;
}
body.menu-open {
  overflow: hidden;
  height: 100%;
}


/* CASE STUDY SHELL */
.case-shell {
  display: grid;
  grid-template-columns: 1fr minmax(0, 800px) 1fr;
  gap: var(--rail-gap);
  max-width: 1600px;
  margin-inline: auto;
  padding-top: var(--spacing-xlarge);
}

.case-shell::after {
  content: "";
}

.case-shell img,
.case-shell video {
  width: 100%;
  margin: 0 0 var(--spacing-small) 0;
  border-radius: var(--radius-lg);
}
.case-shell h1{
  padding-top:0px;
}

.case-section{
  padding-bottom: var(--spacing-small);
}

.case-rail {
  position: sticky;
  top: var(--spacing-xlarge);
}

.case-nav {
  position: sticky;
  padding-top: 3px;
  display: grid;
  gap: var(--spacing-small);
  width: max-content;
  top: var(--spacing-xlarge);
  margin-left: -18px;
}

.case-rail .nav-link {
  display: block;
  width: 100%;
  padding: 0 0 0 var(--spacing-medium);
  border: 0 none;
  border-left: 2px solid var(--color-divider);
  border-radius: 0;
  color: var(--color-text-secondary);
}

.case-rail .nav-link:hover {
  color: var(--color-text-primary);
}

.case-rail .nav-link.is-active {
  border-left:2px solid var(--color-text-primary);
  background: transparent;
  color: var(--color-text-primary);
  -webkit-text-stroke: 0.3px var(--color-text-primary);
}
.case-main {
  max-width: 800px;
  width: 100%;
  justify-self: center;
  min-width: 0;
  box-sizing: border-box;
}

.case-columns {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--gutter);
  padding: var(--gutter) 0px;
}
.case-columns--no-pad {
  padding-block: 0;
}
.details-columns{
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--gutter);
}

.rail-back {
  display: inline-flex;
  align-items: center;
  gap: 12px; 
  color: inherit;
  text-decoration: none;
  position: relative;
  margin: 0px 0px 84px 0px;
  width: fit-content;
  color: var(--color-text-primary);
}

.rail-back::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -2px;
  height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.2s ease;
}

.rail-back:hover::after {
  transform: scaleX(1);
}
.stella {
  display: inline-block;
  transform: translateY(2px);
  padding:0px 4px;
}


/* FOOTER */
.site-footer {
  padding: 12px 0;
  background: var(--color-text-primary);
  color: var(--color-low-contrast);
  display: flex;
  align-items: center;
  margin-top: var(--header-height);
  font-size: 1rem;
}
.site-footer a {
  color: var(--color-high-contrast);
}

.footer-left,
.footer-right {
  display: flex;
  align-items: center;
  gap: 4px;
  font-weight: 300;
}

.footer-right {
  justify-content: flex-end;
  gap: var(--spacing-xlarge);
}
.footer-right a {
  transition: var(--transition-default);
  border: 1px solid transparent;
  border-radius: 8px;
  height: 42px;
  width: 42px;
}
.footer-right a:hover {
  border-color: var(--color-high-contrast);
}

.footer-link {
  text-decoration: none;
  color: var(--color-text-primary);
  font-weight: 500;
}

.footer-link:hover {
  text-decoration: underline;
  text-underline-offset: 3px;
}

.footer-sep {
  padding: 0 var(--spacing-small);
}


/* REFERENCES */
.refs {
  padding-block: var(--spacing-xlarge);
}

.refs-featured {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--gutter);
  margin-bottom: var(--gutter);
}

.refs-featured .ref-card {
  margin-bottom: 0;
}

.refs-grid {
  columns: 2;
  column-gap: var(--gutter);
  width: 100%;
  max-width: 100%;
  overflow-x: visible;
}

.ref-card {
  background: var(--color-ref-bg);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xlarge);
  display: block;
  width: auto;
  break-inside: avoid;
  margin: 0 0 var(--gutter) 0;
  max-width: 100%;
  border: 1px solid var(--color-ref-bg);
  color: var(--color-text-primary);
}

.ref-header {
  display: flex;
  align-items: center;
  gap: var(--spacing-small);
  margin-bottom: var(--spacing-medium);
}

.ref-avatar {
  width: var(--header-height);
  height: var(--header-height);
  border-radius: var(--radius-pill);
  object-fit: cover;
  flex: 0 0 auto;
}

.ref-meta {
  min-width: 0;
}

.ref-name {
  margin: 0;
  padding: 0;
}

.ref-title {
  margin: 0;
  color: var(--color-text-secondary);
  font-weight: 300;
  padding: 0px;
}

.ref-body p {
  margin: 0 0 var(--spacing-medium) 0;
}

.ref-related,
.description{
  color: var(--color-text-secondary);
  font-weight: 400;
  font-size: 1rem;
}
.description{
  font-size: var(--font-size-base);
}

.ref-link {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xsmall);
  border-radius: var(--radius-pill);
  border: 1px solid var(--color-divider);
  text-decoration: none;
  color: inherit;
  font-weight: 500;
  background-color: white;
  font-size: 1rem;
  line-height: 40px;
  height: 40px;
  padding: 0 var(--spacing-small);
  transition: var(--transition-default);
}

.ref-link:hover {
  border: 1px solid var(--color-text-primary);
}

/* PROJECTS */
.project-card {
  text-decoration: none;
  color: inherit;
  display: block;
  transition: var(--transition-default);
  padding: 0;
  background: transparent;
  border: 0 none;
}

.project-media {
  width: 100%;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: white;
  margin-bottom: var(--spacing-small);
  border: 1px solid white;
  transition: var(--transition-default);
}

.project-card:hover .project-media {
  box-shadow: 0 0 0 3px white, 0 0 0 4px var(--color-text-primary);
}

.project-media img,
.project-media video{
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
}

.project-meta {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: baseline;
  gap: var(--spacing-small);
}

.project-title {
  margin: 0;
}

.project-sub {
  font-size: inherit;
  color: var(--color-text-secondary);
  white-space: nowrap;
}


/* ABOUT */
.case-main .ref-card {
  text-align: center;
  transition: var(--transition-default);
  text-decoration: none;
  color: var(--color-text-primary);
  padding: var(--spacing-small);
  margin-top: var(--spacing-small);
}
.case-main .ref-card img {
  margin-top: var(--spacing-medium);
  max-width: 240px;
}
.case-main .ref-card:hover {
  box-shadow: 0 0 0 5px white, 0 0 0 6px var(--color-text-primary);
}



/* RESPONSIVE */
@media (min-width: 1280px) {
  :root {
    --rail-gap: 64px;
  }
}

@media (max-width: 1800px) {
  :root {
    --page-pad: 80px;
    --gutter: 40px;
  }
  .header-nav {
    gap: 8px;
  }
  .case-rail .nav-link{
    height:32px;
    line-height: 32px;
  }
  .rail-back {
    margin: 0px 0px 70px 0px;
  }
  .case-nav {
    gap: 12px;
  }
}

@media (max-width: 1280px) {
  :root {
    --page-pad: 40px;
    --gutter: 24px;
    --font-size-base: 1rem;
  }
  .header-title {
    display: grid;
    gap: 2px;
    padding-left: var(--spacing-xlarge);
  }
  .project-meta {
    display: contents;
  }
  .footer-left{
     display: grid;
  }
}

@media (max-width: 1024px) {
  :root {
    --page-pad: 16px;
    --gutter: 16px;
    --spacing-xlarge:16px;
    --spacing-large:16px;
    --spacing-medium:16px;
    --spacing-header: 24px; 
  }
  .refs-featured {
    grid-template-columns: 1fr;
  }
  .refs-grid {
    columns: 1;
  }
  .stack-mobile > * {
    grid-column: 1 / -1;
  }
  .col-span-6 {
    grid-column: span 12;
  }

  .header-nav   { grid-column: span 2; }

  .footer-left,
  .footer-right {
    grid-column: 1 / -1;
    justify-content: flex-start;
    flex-wrap: wrap;
  }

  .site-footer {
    padding-block: var(--spacing-small);
    padding-top: 80px;
  }
  .footer-right {
    padding-top: 40px;
  }

  .header-nav {
    justify-content: flex-end;
  }

  .header-title {
    flex-direction: column;
    align-items: flex-start;
    grid-column: span 10;
    padding-left: var(--header-height);
  }
  .site-name,
  .site-role {
    white-space: normal;
    line-height: 1.1;
    flex-wrap: wrap;
  }
  .u-center-desktop {
    text-align: var(--align-mobile-start);
  }
  .case-rail .case-nav {
    margin-left: 0px;
  }
}

@media (max-width: 900px) {
  .nav-desktop {
    display: none;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .nav-link {
    padding: 0 var(--spacing-small);
  }
}


@media (max-width: 768px) {
  .case-shell {
    grid-template-columns: 1fr;
  }

  .case-shell::after {
    display: none;
  }

  .case-rail {
    display: none;
  }

  .case-main {
    max-width: 100%;
  }

  .case-columns {
    grid-template-columns: 1fr;
  }

  .project-card {
    aspect-ratio: unset;
  }

  .project-card:hover .project-media {
    box-shadow: none;
  }

  .site-header .logo {
    display: none;
  }

  .header-title {
    padding-left: 0;
  }

  .stack-mobile {
    display: block;
  }

  .stack-mobile > * {
    width: 100%;
    grid-column: 1 / -1;
  }
}