@import url('https://fonts.googleapis.com/css2?family=Roboto:ital,wght@0,300;400;500;700;1,300;1,400&display=swap');

:root {
  --color-text: #232323;
  --color-muted: #666;
  --color-border: #555;
  --color-light-border: #ddd;
  --color-bg: #fff;
  --color-accent: #333;
  --rail-top: 10px;
  --content-top: 3rem;
  --label-width: 240px;
  --label-gap: 1.5rem;
  --content-max: 900px;
  --page-max: calc(var(--label-width) + var(--label-gap) + var(--content-max) + 3rem);
  --font-body: "Roboto", sans-serif;
  --font-mono: "DM Mono", monospace;
  --sticky-section: var(--rail-top);
  --sticky-inv-sub: calc(var(--sticky-section) + 65px);
  /* Timeline — vertical line + horizontal dashes */
  --timeline-offset: 20px;
  --timeline-x: calc(var(--label-width) + var(--timeline-offset));
  --timeline-width: 5px;
  --timeline-color: #000;
  --dash-width: 15px;
  --dash-height: 6px;
  --dash-gap: 25px;
  --morph: 1;
  --morph-labels: 1;
  --morph-range: 420px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 300;
  line-height: 1.4;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: inherit;
  text-decoration: underline;
  text-underline-offset: 2px;
}

a:hover {
  opacity: 0.7;
}

p {
  margin: 0 0 1rem;
  padding-left: 30px;
  text-align: justify;
  line-height: 1.4;
  font-size: 17px;
  font-weight: 400;
  font-family: var(--font-body);
}

p:last-child {
  margin-bottom: 0;
}

/* Brand + nav rail (left column) */
.logo-link {
  display: inline-block;
  text-decoration: none;
}

.logo-link img {
  height: 74px;
  width: auto;
}

.menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  margin-right: auto;
}

.menu-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-accent);
  margin: 5px 0;
  transition: transform 0.3s, opacity 0.3s;
}

.menu-toggle.is-open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.menu-toggle.is-open span:nth-child(2) {
  opacity: 0;
}

.menu-toggle.is-open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Layout */
.page-layout {
  max-width: var(--page-max);
  margin: 0;
  min-height: 100vh;
}

.main-content {
  position: relative;
  display: grid;
  grid-template-columns: var(--label-width) minmax(0, 1fr);
  column-gap: var(--label-gap);
  align-items: start;
  padding: var(--content-top) 0 4rem;
}

.main-content::before {
  content: '';
  position: absolute;
  top: var(--content-top);
  left: var(--timeline-x);
  width: var(--timeline-width);
  height: 100%;
  background: var(--timeline-color);
  pointer-events: none;
  z-index: 3;
  opacity: var(--morph);
  transform: scaleY(var(--morph));
  transform-origin: top center;
  transition: opacity 0.08s linear, transform 0.08s linear;
}

.rail-brand {
  position: fixed;
  top: var(--content-top);
  right: 5.25rem;
  z-index: 26;
  padding: 0;
  pointer-events: auto;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 0.75rem;
  transition: opacity 0.4s ease, visibility 0.4s ease;
}

body.is-intro .rail-brand {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.rail-brand .menu-toggle {
  display: none;
}

/* Nav under logo — always visible */
.content-nav {
  pointer-events: auto;
}

.content-nav a {
  pointer-events: auto;
  cursor: pointer;
}

.nav-list {
  list-style: none;
  margin: 0;
  padding: 0;
  text-align: right;
}

.nav-list li {
  margin-bottom: 0.15rem;
}

.nav-link {
  display: block;
  padding: 0.15rem 0;
  font-size: 0.875rem;
  font-family: var(--font-body);
  color: var(--color-muted);
  text-decoration: none;
  border-left: none;
  background: none;
  transition: color 0.3s;
}

.nav-link:hover {
  color: var(--color-accent);
}

.nav-link.active {
  color: var(--color-accent);
  font-weight: 500;
}

.nav-link.active:hover {
  color: var(--color-accent);
}

/* Sections — subgrid so label column spans full section height for sticky labels */
.content-section {
  display: grid;
  grid-column: 1 / -1;
  grid-template-columns: subgrid;
}

.label-column,
.section-body,
.section-intro,
.contacts-body {
  scroll-margin-top: 1rem;
}

.section-grid {
  display: contents;
}

.content-section:first-of-type .section-body {
  padding-top: 0;
}

.content-section .section-body,
.content-section .contacts-body {
  padding-bottom: 3.5rem;
}

.label-column {
  grid-column: 1;
  grid-row: 1 / -1;
  align-self: stretch;
  position: relative;
  overflow: visible;
  pointer-events: none;
}

.content-column {
  display: contents;
}

.main-content > .mobile-label,
.content-column > .mobile-label,
.section-body,
.section-intro,
.contacts-body,
.investigation-image,
.investigation-video,
.team-group-content {
  grid-column: 2;
}

.content-column,
.row-body,
.section-body,
.section-intro {
  font-family: var(--font-body);
}

.section-body {
  max-width: var(--content-max);
}

.section-label {
  position: sticky;
  top: var(--sticky-section);
  text-align: left;
  padding-right: calc(var(--dash-gap) + 4px);
  z-index: 2;
  max-width: var(--label-width);
  opacity: var(--morph-labels);
  transition: opacity 0.1s linear;
  pointer-events: none;
  padding-left: 10px;
}

.section-label.is-suppressed {
  opacity: 0;
  pointer-events: none;
}

.section-label.is-stuck {
  background: var(--color-bg);
}

.section-label.is-stuck::before {
  opacity: 0;
}

/* Section divider — horizontal rule at section boundary */
.section-label::before {
  content: '';
  position: absolute;
  top: -1rem;
  right: calc(-1 * var(--timeline-offset));
  left: -2rem;
  height: var(--timeline-width);
  background: var(--timeline-color);
  transition: opacity 0.2s ease;
  opacity: var(--morph);
}

.content-section:first-of-type .section-label::before {
  display: none;
}

.section-label h2 {
  font-size: 24px;
  font-weight: 700;
  color: var(--color-accent);
  margin: 0;
  padding-top: 0;
  letter-spacing: 0em;
  font-family: var(--font-body);
}

.section-label h2 .char {
  display: inline-block;
}

@keyframes fadeInChar {
  from {
    opacity: 0;
    transform: translateY(6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.about-section .section-body p {
  font-size: 1.5em;
  font-weight: 600;
  line-height: 1.4;
}

.about-section .section-body p + p {
  margin-top: 1.25rem;
}

.about-section .section-body.is-typing p.is-typing-current::after {
  content: '▏';
  margin-left: 1px;
  animation: typewriterCursor 0.75s step-end infinite;
}

@keyframes typewriterCursor {
  50% {
    opacity: 0;
  }
}

/* Logo splash intro */
body.is-splash {
  overflow: hidden;
}

body.is-splash .page-layout {
  visibility: hidden;
}

.intro-splash {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-bg);
  opacity: 1;
  transition: opacity 0.8s ease;
}

.intro-splash.is-done {
  opacity: 0;
  pointer-events: none;
}

.intro-splash__logo {
  height: min(40vw, 280px);
  width: auto;
  max-width: 85vw;
  overflow: visible;
}

.intro-splash__logo path {
  fill: transparent;
  stroke: #111;
  stroke-width: 1.75;
  stroke-linecap: round;
  stroke-linejoin: round;
  vector-effect: non-scaling-stroke;
}

.intro-splash__circle-wrap {
  transform-box: fill-box;
  transform-origin: center;
  animation: splashCircleShrink 550ms cubic-bezier(0.34, 1.1, 0.64, 1) forwards;
  transition: opacity 0.15s ease;
}

.intro-splash__logo .intro-splash__circle {
  fill: none;
  stroke: #111;
  stroke-width: 1.75;
  vector-effect: non-scaling-stroke;
}

.intro-splash__logo.is-filled .intro-splash__circle-wrap {
  opacity: 0;
}

.intro-splash__logo.is-filled path[fill-rule='evenodd'] {
  fill-rule: evenodd;
}

@keyframes splashCircleShrink {
  from {
    transform: scale(6);
  }
  to {
    transform: scale(1);
  }
}

.intro-splash__logo.is-filled path {
  fill: #111;
  stroke: #111;
  transition: fill 0.55s ease, stroke 0.55s ease;
}

.intro-splash.is-fading-out .intro-splash__logo {
  opacity: 0;
  transform: scale(0.98);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

@keyframes splashPathDraw {
  to {
    stroke-dashoffset: 0;
  }
}

/* Intro — about text only until scroll or nav */
body.is-intro {
  overflow: hidden;
}

body.is-intro .page-layout {
  min-height: 100vh;
  max-height: 100vh;
  overflow: hidden;
}

body.is-intro .content-section:not(.about-section) {
  display: none;
}

body.is-intro .about-section .section-body {
  padding-bottom: 0;
}

body.is-intro .main-content {
  padding-bottom: 0;
}

.section-intro {
  max-width: var(--content-max);
  margin-bottom: 0.75rem;
}

.labeled-row {
  display: grid;
  grid-template-columns: var(--label-width) minmax(0, 1fr);
  column-gap: var(--label-gap);
  grid-column: 1 / -1;
  margin-bottom: 1.75rem;
  align-items: start;
}

.labeled-row:last-child {
  margin-bottom: 0;
}

#methodology .labeled-row:last-child {
  margin-bottom: 3.5rem;
}

#news .labeled-row:last-child {
  margin-bottom: 3.5rem;
}

.labeled-row .row-body,
.labeled-row .news-body {
  grid-column: 2;
}

.row-label {
  position: sticky;
  top: var(--sticky-section);
  text-align: right;
  padding-right: calc(var(--dash-gap) + 4px);
  font-size: 14px;
  font-weight: 700;
  font-family: var(--font-body);
  color: var(--color-accent);
  z-index: 2;
  align-self: start;
  max-width: var(--label-width);
  line-height: 1.3;
  opacity: var(--morph-labels);
  transition: opacity 0.1s linear;
  pointer-events: none;
}

/* Dash anchored to label column — right edge meets the vertical timeline */
.row-label::before {
  content: '';
  position: absolute;
  left: calc(100% + var(--timeline-offset) - var(--dash-width));
  top: 0.55em;
  width: var(--dash-width);
  height: var(--dash-height);
  background: var(--timeline-color);
  z-index: 4;
  opacity: var(--morph);
  transition: opacity 0.1s linear;
}

.row-label.is-stuck {
  background: var(--color-bg);
}

.row-label.is-stuck::before {
  /* dash rides with sticky label, always meeting the vertical line */
}

.row-body {
  max-width: var(--content-max);
  min-width: 0;
}

.labeled-row .row-label {
  grid-column: 1;
}

.investigation {
  display: contents;
}

.investigation-image {
  margin-bottom: 1.5rem;
  padding-left: 30px;
  border-radius: 2px;
  overflow: hidden;
  max-width: var(--content-max);
}

.investigation:last-of-type .labeled-row:last-child {
  margin-bottom: 3.5rem;
}

.investigation-image img {
  width: 100%;
  max-height: 420px;
  object-fit: cover;
}

.investigation-video {
  margin-bottom: 1.5rem;
  padding-top: 1.25rem;
  padding-left: 30px;
  width: 100%;
  max-width: var(--content-max);
}

.investigation-video iframe {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  height: auto;
  border: 0;
}

.inv-main-label::before {
  top: 0.5em;
}

.inv-sub-label::before {
  top: 0.5em;
}

/* News dates — center dash on single-line label */
.news-row .row-label::before {
  top: 50%;
  transform: translateY(-50%);
}

/* Team names — align dash with first line of name */
.team-row .row-label::before {
  top: 0.55em;
}

.team-simple .row-label::before {
  top: 0.55em;
}

.inv-main-label {
  font-size: 18px;
  font-weight: 700;
  top: var(--sticky-section);
}

.inv-sub-label {
  top: var(--sticky-inv-sub);
}

.investigation-title {
  font-size: 19px;
  font-weight: 400;
  margin: 0;
  position: relative;
  padding-left: 1.25rem;
}

.investigation-title::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 15px;
  height: var(--dash-height);
  background: var(--timeline-color);
}

/* Team */
.team-row .row-label h3 {
  font-size: 19px;
  font-weight: 400;
  margin: 0;
  line-height: 1.3;
}

.team-row .row-label .role {
  display: block;
  font-size: 11.5px;
  font-weight: 600;
  margin-top: 0.25rem;
  line-height: 1.5;
}

.team-simple .row-label h3 {
  font-size: 19px;
}

.team-subsection {
  display: grid;
  grid-template-columns: var(--label-width) minmax(0, 1fr);
  column-gap: var(--label-gap);
  grid-column: 1 / -1;
  margin-bottom: 1.75rem;
  align-items: start;
}

.team-subsection:last-child {
  margin-bottom: 0;
}

#team .team-subsection:last-child {
  margin-bottom: 3.5rem;
}

.team-group-label {
  grid-column: 1;
  position: sticky;
  top: var(--sticky-section);
  text-align: right;
  padding-right: calc(var(--dash-gap) + 4px);
  z-index: 2;
  max-width: var(--label-width);
  opacity: var(--morph-labels);
  transition: opacity 0.1s linear;
  pointer-events: none;
}

.team-group-label::before {
  content: '';
  position: absolute;
  left: calc(100% + var(--timeline-offset) - var(--dash-width));
  top: 0.55em;
  width: var(--dash-width);
  height: var(--dash-height);
  background: var(--timeline-color);
}

.team-group-label h3 {
  margin: 0;
  font-size: 19px;
  font-weight: 400;
  line-height: 1.3;
}

.team-group-label strong {
  font-size: 14px;
  font-weight: 400;
  line-height: 1.3;
  color: var(--color-accent);
}

.team-group-content {
  grid-column: 2;
  max-width: var(--content-max);
}

.team-group-content > .mobile-sublabel {
  display: none;
}

.team-simple-entry {
  padding-left: 30px;
}

.team-simple-entry h3 {
  font-size: 19px;
  font-weight: 400;
  margin: 0 0 1.25rem;
  line-height: 1.3;
}

.team-simple-entry:last-child h3 {
  margin-bottom: 0;
}

.team-simple-entry h3 span {
  font-size: 11.5px;
  font-weight: 600;
  line-height: 1.7;
  display: block;
}

/* News */
.news-row {
  opacity: 0.55;
  transition: opacity 0.3s;
}

.news-row.is-active,
.news-row:hover {
  opacity: 1;
}

.news-row .row-label {
  font-weight: 700;
}

.news-body h3 {
  font-size: 16px;
  font-weight: 600;
  margin: 0;
  position: relative;
  padding-left: 30px;
}

/* Content-side dashes only on mobile; desktop uses left timeline */
.news-body h3::before {
  display: none;
}

.news-body {
  max-width: var(--content-max);
  min-width: 0;
}

.news-body .news-desc {
  font-size: 16px;
  font-weight: 300;
}

/* Contacts */
.contacts-body {
  max-width: var(--content-max);
  padding-top: 3.5rem;
}

.contacts-body p {
  margin-bottom: 1rem;
}

.contacts-email-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  margin-bottom: 1rem;
  padding-left: 30px;
}

.contacts-email-row .contacts-email {
  margin: 0;
  padding-left: 0;
  flex: 1;
  min-width: 0;
}

.contacts-email-row .contacts-email a {
  font-weight: 700;
}

@keyframes subscribeFlash {
  0%, 100% {
    background: transparent;
    color: inherit;
  }
  50% {
    background: #000;
    color: #fff;
  }
}

.btn-subscribe {
  display: inline-block;
  flex-shrink: 0;
  padding: 0.65rem 1.35rem;
  border: 1px solid #000;
  text-decoration: none;
  font-size: 14px;
  font-weight: 400;
  font-family: var(--font-body);
  letter-spacing: 0.5px;
  white-space: nowrap;
  transition: background 0.3s, color 0.3s;
  animation: subscribeFlash 1.5s ease-in-out infinite;
}

.btn-subscribe:hover {
  animation: none;
  background: #000;
  color: #fff;
  opacity: 1;
}

.contacts-divider {
  border: none;
  border-top: 1px solid var(--color-light-border);
  margin: 2.5rem 0 1.5rem;
}

.funding-logos {
  margin-top: 1.75rem;
  padding-top: 1.75rem;
  border-top: 1px solid var(--color-light-border);
}

.funding-logos img {
  max-width: min(920px, 100%);
}

/* Mobile labels */
.mobile-label {
  display: none;
  font-size: 27px;
  font-weight: 500;
  font-family: var(--font-body);
  color: var(--color-accent);
  letter-spacing: 0.08em;
  margin: 0 0 1.25rem;
}

.mobile-sublabel {
  display: none;
  font-size: 14px;
  font-weight: 700;
  font-family: var(--font-body);
  color: var(--color-accent);
  margin: 0 0 0.75rem;
}

.investigation-title.mobile-only {
  display: none;
}

/* Responsive */
@media (max-width: 991px) {
  :root {
    --label-width: 0px;
    --label-gap: 0px;
    --rail-top: 64px;
    --content-top: 0px;
  }

  .main-content {
    display: block;
    padding: calc(var(--rail-top) + 1rem) 1.25rem 3rem;
  }

  .main-content::before {
    display: none;
  }

  .content-section {
    display: block;
  }

  .section-grid {
    display: block;
  }

  .content-column {
    display: block;
    max-width: var(--content-max);
    width: 100%;
  }

  .investigation {
    display: block;
  }

  .rail-brand {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    flex-direction: row-reverse;
    align-items: center;
    justify-content: space-between;
    gap: 0;
    width: 100%;
    padding: 0.75rem 1.25rem;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--color-border);
  }

  .rail-brand .menu-toggle {
    display: block;
    margin-right: 0;
  }

  .logo-link img {
    height: 44px;
  }

  .content-nav {
    position: fixed;
    top: var(--rail-top);
    right: 0;
    left: auto;
    width: min(280px, 85vw);
    height: calc(100vh - var(--rail-top));
    max-width: none;
    margin-bottom: 0;
    background: #fff;
    border-left: 1px solid var(--color-text);
    transform: translateX(100%);
    transition: transform 0.35s ease;
    z-index: 99;
    box-shadow: -4px 0 24px rgba(0, 0, 0, 0.08);
    padding: 2rem 1.5rem;
    opacity: 1;
    filter: none;
    visibility: visible;
    pointer-events: auto;
  }

  .content-nav.is-open {
    transform: translateX(0);
  }

  .nav-list {
    text-align: left;
  }

  .nav-link {
    font-size: 1rem;
    padding: 0.4rem 0;
  }

  .label-column,
  .section-label,
  .labeled-row .row-label,
  .team-group-label {
    display: none;
  }

  .mobile-label,
  .mobile-sublabel,
  .investigation-title.mobile-only {
    display: block;
  }

  .mobile-label {
    font-size: 24px;
    font-weight: 700;
    letter-spacing: 0;
    padding-left: 1rem;
    max-width: var(--content-max);
    width: 100%;
  }

  .mobile-sublabel {
    padding-left: 1rem;
  }

  .section-body,
  .section-intro,
  .contacts-body,
  .mobile-label,
  .investigation-image,
  .investigation-video,
  .team-group-content,
  .labeled-row,
  .labeled-row .row-body,
  .labeled-row .news-body,
  .investigation,
  .team-subsection,
  .content-column {
    grid-column: 1;
  }

  .labeled-row,
  .team-subsection {
    grid-template-columns: 1fr;
  }

  .team-group-content > .mobile-sublabel {
    display: block;
    font-size: 14px;
    font-weight: 700;
    margin-bottom: 1rem;
    padding-left: 1rem;
  }

  p,
  .investigation-image,
  .team-simple-entry,
  .news-body h3,
  .investigation-title {
    padding-left: 1rem;
  }

  .about-section .section-body p {
    font-size: 1.15em;
    font-weight: 600;
  }

  .news-body h3::before,
  .investigation-title::before {
    display: block;
    content: '';
    position: absolute;
    left: 0;
    top: 0.55em;
    width: 10px;
    height: var(--dash-height);
    background: var(--timeline-color);
  }

  .investigation-title,
  .news-body h3 {
    position: relative;
  }

  body.is-intro .page-layout {
    max-height: none;
  }

  body.is-intro .main-content {
    padding-top: calc(var(--rail-top) + 1rem);
  }
}

@media (max-width: 640px) {
  .main-content {
    padding-left: 1rem;
    padding-right: 1rem;
  }

  .rail-brand {
    padding-left: 1rem;
    padding-right: 1rem;
  }

  p {
    font-size: 16px;
  }

  .about-section .section-body p {
    font-size: 1.05em;
  }
}