/* Self-hosted font faces */
@font-face {
  font-family: "IBM Plex Sans";
  font-style: normal;
  font-weight: 400 600;
  font-display: swap;
  src: url("./fonts/IBMPlexSans-variable-latin-ext.woff2") format("woff2");
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}

@font-face {
  font-family: "IBM Plex Sans";
  font-style: normal;
  font-weight: 400 600;
  font-display: swap;
  src: url("./fonts/IBMPlexSans-variable-latin.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

@font-face {
  font-family: "Crimson Pro";
  font-style: normal;
  font-weight: 200 900;
  font-display: swap;
  src: url("./fonts/CrimsonPro-variable-latin-ext.woff2") format("woff2");
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}

@font-face {
  font-family: "Crimson Pro";
  font-style: normal;
  font-weight: 200 900;
  font-display: swap;
  src: url("./fonts/CrimsonPro-variable-latin.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}


:root {
  font-size: 100%;
  line-height: 1.6;
  color-scheme: light;
  --font-sans: "IBM Plex Sans", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-serif: "Crimson Pro", ui-serif, "Georgia", "Times New Roman", serif;
  --bg: #F1F4F5;
  --surface: #FFFFFF;
  --text: #0E141B;
  --text-muted: #5B636D;
  --border: rgba(14, 20, 27, 0.12);
  --link-color: #0E141B;
  --container: min(68rem, 100%);
  --container-gutter: clamp(1.35rem, 6vw, 3rem);
  --step--1: clamp(0.9rem, 1vw + 0.65rem, 0.95rem);
  --step-0: clamp(1rem, 1vw + 0.85rem, 1.1rem);
  --motion-quick: 180ms;
  --motion-medium: 360ms;
  --motion-theme-transition: 1300ms;
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
}

@media (prefers-color-scheme: dark) {
  :root {
    color-scheme: dark;
    --bg: #0D1117;
    --surface: #151A21;
    --text: #F2F5F7;
    --text-muted: rgba(242, 245, 247, 0.68);
    --border: rgba(242, 245, 247, 0.16);
    --link-color: #F2F5F7;
  }
}

body[data-theme='light'] {
  color-scheme: light;
  --bg: #F1F4F5;
  --surface: #FFFFFF;
  --text: #0E141B;
  --text-muted: #5B636D;
  --border: rgba(14, 20, 27, 0.12);
  --link-color: #0E141B;
}

body[data-theme='dark'] {
  color-scheme: dark;
  --bg: #0D1117;
  --surface: #151A21;
  --text: #F2F5F7;
  --text-muted: rgba(242, 245, 247, 0.68);
  --border: rgba(242, 245, 247, 0.16);
  --link-color: #F2F5F7;
}

*, *::before, *::after {
  box-sizing: border-box;
  -webkit-tap-highlight-color: transparent;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font-size: var(--step-0);
  font-family: var(--font-sans);
  -webkit-font-smoothing: antialiased;
}

@keyframes themeTransitionFadeOut {
  from {
    opacity: 1;
    filter: none;
  }
  to {
    opacity: 0;
    filter: brightness(0.6) saturate(0.7) blur(40px);
  }
}

@keyframes themeTransitionFadeIn {
  from {
    opacity: 0;
    filter: brightness(1.2) saturate(1.3) blur(48px);
  }
  to {
    opacity: 1;
    filter: none;
  }
}

html.is-theme-transition *,
html.is-theme-transition *::before,
html.is-theme-transition *::after,
html.is-panel-transition *,
html.is-panel-transition *::before,
html.is-panel-transition *::after {
  transition: none !important;
}

@keyframes fadeOut {
  to { opacity: 0; }
}

@media (prefers-reduced-motion: no-preference) {
  html.is-theme-transition::view-transition-old(root) {
    animation: themeTransitionFadeOut var(--motion-theme-transition) ease-in-out forwards;
  }

  html.is-theme-transition::view-transition-new(root) {
    animation: themeTransitionFadeIn var(--motion-theme-transition) ease-in-out forwards;
  }

  html.is-panel-transition::view-transition-old(root) {
    animation: fadeOut 180ms ease-in forwards;
  }

  html.is-panel-transition::view-transition-new(root) {
    animation: fadeIn 280ms ease-out both;
  }
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: inherit;
}

button {
  font: inherit;
  color: inherit;
}

.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--container-gutter);
}

.site-header {
  position: sticky;
  top: 0;
  background: var(--bg);
  z-index: 10;
  transition: background-color var(--motion-medium) var(--ease-out);
}

.header-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  padding-block: clamp(1rem, 2.5vw, 1.5rem);
}

.header-end {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 0.75rem;
  flex-shrink: 0;
}

.header-controls {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 0.5rem;
}

.menu-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  min-width: 44px;
  min-height: 44px;
  border: none;
  background: none;
  padding: 0.25rem;
  cursor: pointer;
  color: var(--text);
  opacity: 0.55;
  transition: opacity var(--motion-quick) var(--ease-out);
}

.menu-toggle:hover,
.menu-toggle:focus-visible {
  opacity: 1;
  outline: none;
}

.menu-toggle:active {
  opacity: 0.8;
}

.menu-toggle-box {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 0.28rem;
}

.menu-toggle-bar {
  width: 1.2rem;
  height: 1.5px;
  border-radius: 999px;
  background: currentColor;
  transition: transform var(--motion-quick) var(--ease-out), opacity var(--motion-quick) var(--ease-out);
}

.menu-toggle--open .menu-toggle-bar:nth-child(1) {
  transform: translateY(3px) rotate(45deg);
}

.menu-toggle--open .menu-toggle-bar:nth-child(2) {
  transform: translateY(-3px) rotate(-45deg);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

.primary-nav {
  display: flex;
  gap: 1.75rem;
  align-items: center;
}

.tab {
  border: none;
  background: none;
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: 0.68rem;
  font-weight: 500;
  padding: 0.2rem 0;
  cursor: pointer;
  color: var(--text);
  opacity: 0.35;
  line-height: 1.3;
  white-space: nowrap;
  transition: opacity var(--motion-quick) var(--ease-out);
  display: inline-flex;
  align-items: center;
}

.tab[aria-selected='true'] {
  opacity: 1;
}

.tab:hover:not([aria-selected='true']) {
  opacity: 0.65;
}

.tab:active {
  opacity: 0.55;
}

.tab:focus-visible {
  outline: 2px solid var(--text);
  outline-offset: 4px;
  border-radius: 2px;
  opacity: 1;
}

.theme-toggle {
  border: none;
  background: none;
  padding: 0.2rem;
  display: inline-flex;
  align-items: center;
  cursor: pointer;
  color: var(--text);
  opacity: 0.45;
  transition: opacity var(--motion-quick) var(--ease-out), transform 120ms var(--ease-out);
}

.theme-toggle:hover,
.theme-toggle:focus-visible {
  opacity: 1;
  outline: none;
}

.theme-toggle:active {
  transform: scale(0.85);
}

.theme-toggle:focus-visible {
  outline: 2px solid var(--text);
  outline-offset: 3px;
  border-radius: 2px;
}

.language-select {
  position: relative;
  display: inline-flex;
}

.language-select select {
  border: none;
  background: var(--bg);
  padding: 0.2rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: 0.68rem;
  font-weight: 500;
  cursor: pointer;
  color: var(--text);
  opacity: 0.45;
  appearance: none;
  -webkit-appearance: none;
  transition: opacity var(--motion-quick) var(--ease-out);
  font-family: var(--font-sans);
}

.language-select select:hover,
.language-select select:focus-visible {
  opacity: 1;
  outline: none;
}

.language-select select:focus-visible {
  outline: 2px solid var(--text);
  outline-offset: 3px;
  border-radius: 2px;
}

.toggle-icon {
  font-size: 1rem;
}

main {
  padding-bottom: clamp(3rem, 6vw, 4.5rem);
}

.tabs-shell {
  padding-block: clamp(2rem, 6vw, 4rem);
}

.panels {
  display: grid;
  gap: clamp(1.25rem, 3vw, 1.75rem);
}

.panel {
  padding: 0;
  background: transparent;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity var(--motion-medium) var(--ease-out), transform var(--motion-medium) var(--ease-out);
  will-change: opacity, transform;
}

.panel[hidden] {
  display: none;
}

.panel[data-active='true'] {
  opacity: 1;
  transform: translateY(0);
}

.project-card.hero-card {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  text-align: center;
  align-items: center;
  padding: clamp(2.5rem, 9vw, 5.75rem);
}


.hero-title {
  margin: 0;
  font-size: clamp(2.75rem, 10vw, 6rem);
  font-family: var(--font-serif);
  font-weight: 700;
  letter-spacing: -0.01em;
  line-height: 1.1;
}

.hero-cursor {
  font-weight: 100;
  margin-left: 0.05em;
  animation: heroCaret 750ms linear infinite;
}


.hero-links {
  margin-top: 1rem;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1.5rem;
  align-self: center;
  width: 100%;
  max-width: 32rem;
}

.has-js .hero-links {
  opacity: 0;
  visibility: hidden;
}

.has-js .hero-links--revealed {
  visibility: visible;
}

.has-js .hero-links--done {
  opacity: 1;
  visibility: visible;
}

@media (prefers-reduced-motion: reduce) {
  .has-js .hero-links--revealed {
    opacity: 1;
  }
}

.hero-link {
  margin: 0;
  font-weight: 600;
  letter-spacing: 0.02em;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.2rem 0;
  color: var(--link-color);
  border-bottom: 1px solid transparent;
  text-decoration: none;
  transition: border-color var(--motion-quick) var(--ease-out), opacity var(--motion-quick) var(--ease-out);
}

.hero-link:hover,
.hero-link:focus-visible {
  border-color: var(--text);
  outline: none;
}

.hero-link:active {
  opacity: 0.6;
  transition-duration: 90ms;
}

.hero-link:focus-visible {
  outline: 2px solid var(--text);
  outline-offset: 3px;
}

.hero-link-icon {
  width: 1.1rem;
  height: 1.1rem;
  color: currentColor;
  transition: color 0.25s ease;
}

.panel p {
  margin-top: 0;
  max-width: 70ch;
}

.project-card.legal-card {
  gap: 1.5rem;
}

.legal-card__title {
  margin: 0;
  font-size: clamp(2.4rem, 5vw, 3.4rem);
  font-family: var(--font-serif);
  font-weight: 700;
  letter-spacing: -0.01em;
}

.legal-note {
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  transition: border-color var(--motion-medium) var(--ease-out);
}

.legal-note p {
  margin: 0;
  color: var(--text-muted);
  font-size: var(--step--1);
  line-height: 1.7;
}

.project-showcase {
  padding: 0;
  background: transparent;
}

.project-card {
  padding: clamp(1.9rem, 6vw, 3.5rem) 0;
  background: transparent;
  color: var(--text);
  display: flex;
  flex-direction: column;
  gap: clamp(1.5rem, 3vw, 2.75rem);
}

.project-card__header {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  max-width: 75ch;
}

.project-card__eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.28em;
  font-size: 0.75rem;
  margin: 0;
  color: var(--text-muted);
}

.project-card__title {
  margin: 0;
  font-size: clamp(2.4rem, 5vw, 3.2rem);
  font-family: var(--font-serif);
  font-weight: 700;
  letter-spacing: -0.01em;
}

@media (min-width: 640px) {
  .project-card__title,
  .legal-card__title {
    /* Tracking tightens further as these headings grow larger, matching how type should read at size */
    letter-spacing: -0.02em;
  }
}

.project-card__lede {
  margin: 0;
  color: var(--text-muted);
  line-height: 1.7;
}

.project-card__lede--narrow {
  max-width: 60ch;
  margin-inline: auto;
}

.project-facts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  column-gap: clamp(2rem, 5vw, 3.5rem);
  row-gap: 1.75rem;
  max-width: 75ch;
  margin: 0;
  padding: 0;
}

.project-facts dt {
  margin: 0;
  padding-bottom: 0.65rem;
  border-bottom: 1px solid var(--border);
  font-size: 0.7rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--text-muted);
  transition: border-color var(--motion-medium) var(--ease-out);
}

.project-facts dd {
  margin: 0.75rem 0 0;
  font-size: var(--step--1);
  color: var(--text);
  font-weight: 600;
}

.project-facts dd + dd {
  margin-top: 0.3rem;
}

.project-card__footer {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  margin-top: 0.5rem;
  align-items: flex-start;
}

.project-card__links-row {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
}

.icon-button {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.2rem 0;
  border: none;
  border-bottom: 1px solid transparent;
  background: none;
  appearance: none;
  cursor: pointer;
  text-decoration: none;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--link-color);
  transition: border-color var(--motion-quick) var(--ease-out), opacity var(--motion-quick) var(--ease-out);
}

.icon-button:hover,
.icon-button:focus-visible {
  border-color: var(--text);
  outline: none;
}

.icon-button:active {
  opacity: 0.6;
  transition-duration: 90ms;
}

.icon-button:focus-visible {
  outline: 2px solid var(--text);
  outline-offset: 3px;
}

.icon-button[disabled],
.icon-button[aria-disabled='true'] {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

.icon-button-icon {
  width: 1.1rem;
  height: 1.1rem;
  display: inline-flex;
  color: currentColor;
  transition: color 0.25s ease;
}

.icon-button-icon svg {
  width: 100%;
  height: 100%;
}

.inline-link {
  border-bottom: 1px solid transparent;
  text-decoration: none;
  font-weight: 500;
}

.inline-link:hover,
.inline-link:focus-visible {
  border-color: var(--text);
  outline: none;
}

.inline-link:focus-visible {
  outline: 2px solid var(--text);
  outline-offset: 2px;
  border-radius: 2px;
}

.project-card .inline-link {
  color: var(--text);
  border-bottom-color: var(--border);
}

.project-card .inline-link:hover,
.project-card .inline-link:focus-visible {
  border-color: var(--text);
}

@keyframes heroCaret {
  0%, 49% { opacity: 1; }
  50%, 100% { opacity: 0; }
}

@keyframes fadeSlideUp {
  from {
    opacity: 0;
    transform: translateY(1.25rem);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { }
}

@media (prefers-reduced-motion: no-preference) {
  .hero-links--revealed {
    animation: fadeSlideUp 720ms var(--ease-out) both;
  }

  .hero-links--revealed .hero-link {
    animation: fadeSlideUp 600ms var(--ease-out) both;
  }

  .hero-links--revealed .hero-link:nth-child(2) {
    animation-delay: 120ms;
  }

  .hero-links--revealed .hero-link:nth-child(3) {
    animation-delay: 200ms;
  }

  .hero-links--done,
  .hero-links--done .hero-link {
    animation: none;
  }
}

@media (max-width: 960px) {
  .header-wrap {
    gap: 1.5rem;
  }

  .primary-nav {
    gap: 1.1rem;
  }

  .hero-card {
    text-align: left;
    align-items: flex-start;
  }

  .hero-links {
    justify-content: flex-start;
  }
}

@media (max-width: 640px) {
  .header-wrap {
    gap: 0;
    flex-wrap: wrap;
  }

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

  .primary-nav {
    order: 10;
    width: 100%;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 0.5rem 0 0.25rem;
    border-top: 1px solid var(--border);
    flex: none;
  }

  .primary-nav[data-menu-ready='true'][data-open='false']:not(.is-closing) {
    display: none;
  }

  .primary-nav[data-open='true'],
  .primary-nav.is-closing {
    display: flex;
  }

  .tab {
    width: 100%;
    min-height: 44px;
    justify-content: flex-start;
    opacity: 0.5;
    padding: 0.7rem 0;
    border-bottom: 1px solid color-mix(in srgb, var(--border) 60%, transparent);
    font-size: 0.72rem;
  }

  .tab:last-child {
    border-bottom: none;
  }

  .tab[aria-selected='true'] {
    opacity: 1;
  }

  .theme-toggle {
    min-width: 44px;
    min-height: 44px;
    justify-content: center;
  }

  .language-select select {
    min-width: 44px;
    min-height: 44px;
  }

  .hero-card {
    align-items: stretch;
  }

  .hero-links {
    flex-direction: column;
    align-items: stretch;
    align-self: stretch;
    gap: 0.75rem;
  }

  .hero-link {
    padding: 0.65rem 0;
  }

  .project-facts {
    grid-template-columns: minmax(0, 1fr);
  }

  .project-card__footer {
    align-items: stretch;
  }

  .project-card__links-row {
    width: 100%;
  }

  .tabs-shell {
    padding-block: clamp(1.5rem, 8vw, 3rem);
  }
}

@keyframes navSlideIn {
  from { opacity: 0; transform: translateY(-0.4rem); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes navSlideOut {
  from { opacity: 1; transform: translateY(0); }
  to   { opacity: 0; transform: translateY(-0.4rem); }
}

@media (prefers-reduced-motion: no-preference) and (max-width: 640px) {
  .primary-nav[data-open='true'] {
    animation: navSlideIn 220ms var(--ease-out) both;
  }

  .primary-nav.is-closing {
    animation: navSlideOut 180ms var(--ease-out) both;
  }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* Borders firm up and read as solid definition when the system asks for more contrast */
@media (prefers-contrast: more) {
  :root {
    --border: rgba(14, 20, 27, 0.45);
  }

  @media (prefers-color-scheme: dark) {
    :root {
      --border: rgba(242, 245, 247, 0.5);
    }
  }

  body[data-theme='light'] {
    --border: rgba(14, 20, 27, 0.45);
  }

  body[data-theme='dark'] {
    --border: rgba(242, 245, 247, 0.5);
  }

  .hero-link,
  .icon-button,
  .legal-note,
  .project-facts dt {
    border-width: 1.5px;
  }
}