/* ============================================================
   OpenSpineConsortium — stylesheet
   Aesthetic: editorial / scientific. Warm "bone paper" ground,
   deep ink type, clinical teal + ochre accents, Newsreader serif
   display paired with IBM Plex Sans / Mono.
   ============================================================ */

:root {
  --paper:        #F1EEE3;
  --paper-card:   #FBFAF4;
  --paper-deep:   #E7E2D2;
  --ink:          #1A1C18;
  --ink-soft:     #585B50;
  --ink-faint:    #8C8E82;
  --teal:         #0E5F58;
  --teal-deep:    #0A423D;
  --teal-bright:  #157A70;
  --ochre:        #BC6B26;
  --line:         rgba(26, 28, 24, 0.14);
  --line-soft:    rgba(26, 28, 24, 0.08);

  --font-display: "Newsreader", Georgia, serif;
  --font-body:    "IBM Plex Sans", system-ui, sans-serif;
  --font-mono:    "IBM Plex Mono", ui-monospace, monospace;

  --maxw: 1180px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

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

html { scroll-behavior: smooth; scroll-padding-top: 84px; }

body {
  font-family: var(--font-body);
  background-color: var(--paper);
  color: var(--ink);
  line-height: 1.62;
  font-size: 17px;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  /* faint film-grain texture */
  background-image:
    radial-gradient(900px 600px at 88% -5%, rgba(14, 95, 88, 0.07), transparent 70%),
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.035'/%3E%3C/svg%3E");
}

a { color: inherit; text-decoration: none; }
em { font-style: italic; }

::selection { background: var(--teal); color: var(--paper-card); }

/* ---------- shared layout helpers ---------- */
.section {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 120px 32px;
  position: relative;
}
.section--alt {
  max-width: none;
  background: var(--paper-deep);
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
}
.section--alt > * { max-width: var(--maxw); margin-left: auto; margin-right: auto; }
.section--alt .section__intro { margin-left: 0; margin-right: 0; }

.section__head {
  display: flex;
  align-items: baseline;
  gap: 20px;
  margin-bottom: 16px;
}
.section__num {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--teal);
  letter-spacing: 0.05em;
  border: 1px solid var(--teal);
  border-radius: 100px;
  padding: 4px 12px;
}
.section__title {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(2.1rem, 5vw, 3.4rem);
  letter-spacing: -0.02em;
  line-height: 1.05;
}
.section__intro {
  font-size: 1.2rem;
  color: var(--ink-soft);
  max-width: 640px;
  margin-bottom: 56px;
  font-family: var(--font-display);
  line-height: 1.5;
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--teal);
}

.lead-para {
  font-family: var(--font-display);
  font-size: 1.3rem;
  line-height: 1.5;
  color: var(--ink);
  margin-bottom: 22px;
}

/* ============================================================
   NAV
   ============================================================ */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 32px;
  background: rgba(241, 238, 227, 0.82);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s var(--ease), background 0.3s var(--ease);
}
.nav.is-scrolled {
  border-bottom-color: var(--line);
  background: rgba(241, 238, 227, 0.94);
}
.nav__brand {
  display: flex;
  align-items: center;
  gap: 9px;
  font-family: var(--font-display);
  font-size: 1.18rem;
  letter-spacing: -0.01em;
}
.nav__brand strong { color: var(--teal); font-weight: 600; }
.nav__mark { width: 26px; height: 26px; color: var(--teal); }

.nav__links { display: flex; align-items: center; gap: 30px; }
.nav__links a {
  font-size: 0.92rem;
  color: var(--ink-soft);
  position: relative;
  transition: color 0.2s var(--ease);
}
.nav__links a:not(.nav__cta)::after {
  content: "";
  position: absolute;
  left: 0; bottom: -5px;
  width: 0; height: 1.5px;
  background: var(--teal);
  transition: width 0.28s var(--ease);
}
.nav__links a:not(.nav__cta):hover { color: var(--ink); }
.nav__links a:not(.nav__cta):hover::after,
.nav__links a.is-active::after { width: 100%; }
.nav__links a.is-active { color: var(--ink); }

.nav__cta {
  background: var(--ink);
  color: var(--paper-card) !important;
  padding: 9px 18px;
  border-radius: 100px;
  font-weight: 500;
  transition: background 0.2s var(--ease), transform 0.2s var(--ease);
}
.nav__cta:hover { background: var(--teal); transform: translateY(-1px); }

.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
}
.nav__toggle span {
  width: 24px; height: 2px;
  background: var(--ink);
  border-radius: 2px;
  transition: transform 0.3s var(--ease), opacity 0.2s var(--ease);
}
.nav__toggle.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav__toggle.is-open span:nth-child(2) { opacity: 0; }
.nav__toggle.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ============================================================
   HERO
   ============================================================ */
.hero {
  position: relative;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 188px 32px 130px;
  min-height: 92vh;
  display: flex;
  align-items: center;
}
.hero__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--line-soft) 1px, transparent 1px),
    linear-gradient(90deg, var(--line-soft) 1px, transparent 1px);
  background-size: 64px 64px;
  -webkit-mask-image: radial-gradient(circle at 30% 40%, #000 0%, transparent 75%);
          mask-image: radial-gradient(circle at 30% 40%, #000 0%, transparent 75%);
  pointer-events: none;
}
.hero__content { position: relative; max-width: 720px; }

.hero__title {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(2.7rem, 7vw, 5.1rem);
  line-height: 1.02;
  letter-spacing: -0.035em;
  margin: 22px 0 28px;
}
.hero__title span { display: block; }
.hero__title em { color: var(--teal); font-style: italic; }

.hero__lede {
  font-size: 1.22rem;
  color: var(--ink-soft);
  max-width: 560px;
  margin-bottom: 36px;
}

.hero__actions { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 64px; }

.btn {
  font-family: var(--font-body);
  font-size: 0.96rem;
  font-weight: 500;
  padding: 14px 26px;
  border-radius: 100px;
  border: 1.5px solid var(--ink);
  transition: transform 0.2s var(--ease), background 0.25s var(--ease), color 0.25s var(--ease);
}
.btn--solid { background: var(--ink); color: var(--paper-card); }
.btn--solid:hover { background: var(--teal); border-color: var(--teal); transform: translateY(-2px); }
.btn--ghost { background: transparent; color: var(--ink); }
.btn--ghost:hover { background: var(--ink); color: var(--paper-card); transform: translateY(-2px); }

.hero__stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px 28px;
  border-top: 1px solid var(--line);
  padding-top: 26px;
  max-width: 620px;
}
.hero__stats dt {
  font-family: var(--font-display);
  font-size: 2.1rem;
  font-weight: 600;
  color: var(--teal);
  line-height: 1;
}
.hero__stats dd {
  font-size: 0.82rem;
  color: var(--ink-soft);
  margin-top: 6px;
}
.hero__stats dd span {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.62rem;
  color: var(--ochre);
}

/* decorative spine column */
.hero__spine {
  position: absolute;
  right: -10px; top: 50%;
  transform: translateY(-50%);
  width: 300px; height: 100%;
  max-height: 760px;
  pointer-events: none;
  opacity: 0.92;
}
.hero__spine svg { width: 100%; height: 100%; }
.spine-col {
  fill: none;
  stroke: var(--teal-deep);
  stroke-width: 1.6;
}
.spine-col rect, .spine-col path { fill: rgba(14, 95, 88, 0.045); }
.spine-col .v-core { fill: var(--ochre); stroke: none; }
.spine-col .sacrum { fill: rgba(188, 107, 38, 0.07); }
.spine-col use, .spine-col .sacrum {
  stroke-dasharray: 600;
  stroke-dashoffset: 600;
  animation: draw 2.4s var(--ease) forwards;
}
.spine-col use:nth-of-type(1) { animation-delay: 0.30s; }
.spine-col use:nth-of-type(2) { animation-delay: 0.42s; }
.spine-col use:nth-of-type(3) { animation-delay: 0.54s; }
.spine-col use:nth-of-type(4) { animation-delay: 0.66s; }
.spine-col use:nth-of-type(5) { animation-delay: 0.78s; }
.spine-col use:nth-of-type(6) { animation-delay: 0.90s; }
.spine-col use:nth-of-type(7) { animation-delay: 1.02s; }
.spine-col use:nth-of-type(8) { animation-delay: 1.14s; }
.spine-col use:nth-of-type(9) { animation-delay: 1.26s; }
.spine-col .sacrum { animation-delay: 1.40s; }
@keyframes draw { to { stroke-dashoffset: 0; } }

/* ============================================================
   PROJECT
   ============================================================ */
.project__layout {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 64px;
  align-items: start;
}
.project__lead p { color: var(--ink-soft); }
.project__lead em { color: var(--ink); font-style: italic; }

.project__pillars { list-style: none; display: flex; flex-direction: column; gap: 4px; }
.project__pillars li {
  padding: 26px 0;
  border-top: 1px solid var(--line);
}
.project__pillars li:last-child { border-bottom: 1px solid var(--line); }
.pillar__tag {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ochre);
}
.project__pillars h3 {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 500;
  margin: 8px 0 6px;
}
.project__pillars p { font-size: 0.95rem; color: var(--ink-soft); }

/* ============================================================
   DATASETS
   ============================================================ */
.badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-soft);
  border: 1px solid var(--line);
  border-radius: 100px;
  padding: 4px 11px;
}
.badge--flag { background: var(--teal); color: var(--paper-card); border-color: var(--teal); }

.dataset {
  background: var(--paper-card);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 34px;
}
.dataset--flagship {
  padding: 44px;
  border-color: var(--teal);
  box-shadow: 0 24px 48px -32px rgba(10, 66, 61, 0.45);
  position: relative;
  overflow: hidden;
}
.dataset--flagship::before {
  content: "";
  position: absolute;
  top: -60px; right: -60px;
  width: 220px; height: 220px;
  background: radial-gradient(circle, rgba(14, 95, 88, 0.12), transparent 68%);
}
.dataset__meta { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 18px; }
.dataset__name {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3.6vw, 2.6rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-bottom: 14px;
}
.dataset__name--sm { font-size: 1.4rem; margin: 14px 0 10px; }
.dataset__desc { color: var(--ink-soft); max-width: 620px; }

.dataset__specs {
  list-style: none;
  margin-top: 26px;
  border-top: 1px solid var(--line);
}
.dataset__specs li {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  padding: 11px 0;
  border-bottom: 1px solid var(--line-soft);
  font-size: 0.92rem;
}
.spec-k { font-family: var(--font-mono); font-size: 0.78rem; color: var(--ink-faint); letter-spacing: 0.04em; text-transform: uppercase; }
.spec-v { text-align: right; color: var(--ink); }

.dataset__row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 20px;
}
.dataset__note {
  margin-top: 36px;
  padding: 22px 26px;
  border-left: 3px solid var(--ochre);
  background: rgba(188, 107, 38, 0.06);
  font-size: 0.95rem;
  color: var(--ink-soft);
  border-radius: 0 8px 8px 0;
}

/* ============================================================
   PEOPLE
   ============================================================ */
.people__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}
.person {
  display: flex;
  gap: 20px;
  background: var(--paper-card);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 28px;
  transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease);
}
.person:hover { transform: translateY(-3px); box-shadow: 0 18px 36px -28px rgba(26, 28, 24, 0.4); }
.person--lead { border-color: var(--teal); }
.person__portrait {
  flex-shrink: 0;
  width: 60px; height: 60px;
  border-radius: 50%;
  background: var(--teal);
  color: var(--paper-card);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.15rem;
}
.person__portrait--ghost {
  background: transparent;
  border: 1.5px dashed var(--ink-faint);
  color: var(--ink-faint);
  font-size: 1.5rem;
}
.person__body h3 { font-family: var(--font-display); font-size: 1.28rem; font-weight: 600; }
.person__role {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--teal);
  margin: 3px 0 10px;
}
.person__bio { font-size: 0.93rem; color: var(--ink-soft); }
.person__bio a { color: var(--teal); border-bottom: 1px solid var(--teal); }
.person__affil {
  margin-top: 10px;
  font-size: 0.82rem;
  color: var(--ink-faint);
  padding-top: 8px;
  border-top: 1px solid var(--line-soft);
}

.institutions { margin-top: 48px; }
.institutions__label {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin-bottom: 16px;
}
.institutions__list {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.institutions__list li {
  font-size: 0.9rem;
  padding: 8px 16px;
  border: 1px solid var(--line);
  border-radius: 100px;
  background: var(--paper-card);
}
.institutions__more { color: var(--ink-faint); font-style: italic; }

/* --- contributors rendered from contributions/manifest.json --- */
.people__status {
  grid-column: 1 / -1;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--ink-faint);
  padding: 18px 0;
}
.people__status--error { color: var(--ochre); }

.person__portrait { position: relative; overflow: hidden; }
.person__portrait img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.person__suffix { color: var(--ink-faint); font-weight: 400; }

.person__contribs {
  list-style: none;
  margin-top: 14px;
  padding-top: 13px;
  border-top: 1px solid var(--line-soft);
  display: flex;
  flex-direction: column;
  gap: 11px;
}
.person__contribs-label {
  font-family: var(--font-mono);
  font-size: 0.64rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-faint);
}
.contrib { position: relative; padding-left: 16px; }
.contrib::before {
  content: "";
  position: absolute;
  left: 0; top: 6px;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--teal);
}
.contrib--prep::before { background: var(--ochre); }
.contrib__title {
  display: block;
  font-size: 0.88rem;
  line-height: 1.42;
  color: var(--ink);
}
.contrib__meta {
  display: block;
  margin-top: 3px;
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.03em;
  color: var(--ink-faint);
}
.contrib__status { color: var(--teal); }
.contrib--prep .contrib__status { color: var(--ochre); }

/* ============================================================
   ORGANIZATION
   ============================================================ */
.org__layout {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 64px;
  align-items: start;
}
.org__intro p:not(.lead-para) { color: var(--ink-soft); }

.org__principles { list-style: none; counter-reset: org; }
.org__principles li {
  display: flex;
  gap: 24px;
  padding: 24px 0;
  border-top: 1px solid var(--line);
}
.org__principles li:last-child { border-bottom: 1px solid var(--line); }
.org__index {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--teal);
  flex-shrink: 0;
  padding-top: 4px;
}
.org__principles h3 { font-family: var(--font-display); font-size: 1.3rem; font-weight: 500; margin-bottom: 5px; }
.org__principles p { font-size: 0.95rem; color: var(--ink-soft); }

/* ============================================================
   GOALS
   ============================================================ */
.goals__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: 14px;
  overflow: hidden;
}
.goal {
  background: var(--paper-card);
  padding: 32px 28px;
  transition: background 0.25s var(--ease);
}
.goal:hover { background: var(--paper); }
.goal h3 {
  font-family: var(--font-display);
  font-size: 1.32rem;
  font-weight: 500;
  margin-bottom: 8px;
}
.goal h3::before {
  content: "";
  display: block;
  width: 26px; height: 2.5px;
  background: var(--ochre);
  margin-bottom: 14px;
}
.goal p { font-size: 0.94rem; color: var(--ink-soft); }

.outputs {
  margin-top: 44px;
  padding-top: 28px;
  border-top: 1px solid var(--line);
}
.outputs__label {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin-bottom: 16px;
}
.outputs__label span { color: var(--ochre); }
.outputs__list { list-style: none; }
.outputs__list li {
  padding: 12px 0;
  border-bottom: 1px solid var(--line-soft);
  font-size: 0.96rem;
  color: var(--ink-soft);
}
.outputs__list em { color: var(--ink-faint); }
.outputs__year {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--teal);
  margin-right: 14px;
}

/* ============================================================
   WORKSHOP
   ============================================================ */
.workshop__layout {
  display: grid;
  grid-template-columns: 0.82fr 1.18fr;
  gap: 48px;
  align-items: start;
}
.workshop__card {
  background: var(--paper-card);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 32px;
}
.workshop__meta { display: flex; flex-direction: column; }
.workshop__meta div {
  display: flex;
  flex-direction: column;
  gap: 3px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line-soft);
}
.workshop__meta div:first-child { padding-top: 0; }
.workshop__meta div:last-child { border-bottom: none; padding-bottom: 0; }
.workshop__meta dt {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-faint);
}
.workshop__meta dd { font-size: 1.02rem; color: var(--ink); }
.workshop__meta dd span { color: var(--ink-faint); }

.workshop__actions {
  margin-top: 24px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 16px;
}
.workshop__actions .btn { width: 100%; text-align: center; }
.workshop__link {
  font-family: var(--font-mono);
  font-size: 0.84rem;
  color: var(--teal);
  border-bottom: 1px solid rgba(14, 95, 88, 0.32);
  padding-bottom: 2px;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}
.workshop__link:hover { color: var(--teal-bright); border-color: var(--teal-bright); }

/* agenda timeline */
.agenda { list-style: none; }
.agenda li {
  display: grid;
  grid-template-columns: 92px 1fr;
  gap: 24px;
  padding: 15px 0;
  border-top: 1px solid var(--line);
}
.agenda li:last-child { border-bottom: 1px solid var(--line); }
.agenda__time {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--teal);
  padding-top: 2px;
}
.agenda__item { font-size: 1.0rem; color: var(--ink); line-height: 1.45; }
/* Agenda items that link to a tutorial */
.agenda__link {
  color: var(--ink);
  text-decoration: none;
  display: inline-flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 10px;
  transition: color .15s ease;
}
.agenda__link:hover { color: var(--teal); }
.agenda__tag {
  font-family: var(--font-mono);
  font-size: 0.70rem;
  letter-spacing: .04em;
  text-transform: uppercase;
  color: var(--teal);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 2px 9px;
  white-space: nowrap;
  transition: border-color .15s ease, background .15s ease;
}
.agenda__link:hover .agenda__tag { border-color: var(--teal); background: rgba(0,0,0,.03); }

/* ============================================================
   EDUCATION OUTCOMES
   ============================================================ */
.meded__status {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--ink-faint);
  padding: 10px 0;
}
.meded__status--error { color: var(--ochre); }

/* --- before/after dumbbell chart --- */
.meded__chart {
  background: var(--paper-card);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 36px;
  margin-bottom: 20px;
}
.meded__chart-head { margin-bottom: 30px; }
.meded__chart-head h3 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 500;
}
.meded__chart-sub {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin-top: 5px;
}
.dumbbell-list { display: flex; flex-direction: column; gap: 20px; }
.dumbbell {
  display: grid;
  grid-template-columns: 230px 1fr 52px;
  align-items: center;
  gap: 22px;
}
.dumbbell__label { font-size: 0.92rem; line-height: 1.3; }
.dumbbell__track { position: relative; height: 26px; }
.dumbbell__track::before {
  content: "";
  position: absolute;
  left: 0; right: 0; top: 50%;
  height: 2px;
  background: var(--line);
  transform: translateY(-50%);
}
.dumbbell__bar {
  position: absolute;
  top: 50%;
  height: 4px;
  width: 0;
  background: linear-gradient(90deg, var(--ink-faint), var(--teal));
  border-radius: 2px;
  transform: translateY(-50%);
  transition: left 0.9s var(--ease), width 0.9s var(--ease);
}
.dumbbell__dot {
  position: absolute;
  top: 50%;
  width: 15px; height: 15px;
  border-radius: 50%;
  border: 2px solid var(--paper-card);
  transform: translate(-50%, -50%);
  transition: left 0.9s var(--ease);
}
.dumbbell__dot--before { background: var(--ink-faint); z-index: 1; }
.dumbbell__dot--now { background: var(--teal); z-index: 2; }
.dumbbell__delta {
  font-family: var(--font-mono);
  font-size: 0.84rem;
  font-weight: 500;
  color: var(--teal);
  text-align: right;
}
.meded__legend {
  display: flex;
  gap: 24px;
  margin-top: 24px;
  padding-top: 16px;
  border-top: 1px solid var(--line-soft);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--ink-soft);
}
.meded__legend .dot {
  display: inline-block;
  width: 10px; height: 10px;
  border-radius: 50%;
  margin-right: 6px;
}
.dot--before { background: var(--ink-faint); }
.dot--now { background: var(--teal); }
.meded__baseline {
  margin-top: 14px;
  font-size: 0.9rem;
  color: var(--ink-soft);
}

/* --- headline stat callouts --- */
.meded__stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: 14px;
  overflow: hidden;
  margin-bottom: 20px;
}
.medstat { background: var(--paper-card); padding: 30px 26px; }
.medstat__value {
  font-family: var(--font-display);
  font-size: 2.4rem;
  font-weight: 600;
  color: var(--teal);
  line-height: 1;
}
.medstat__label {
  font-size: 0.86rem;
  color: var(--ink-soft);
  margin-top: 11px;
}

/* --- participant quotes --- */
.meded__quotes {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 20px;
}
.medquote {
  background: var(--paper-card);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 28px;
}
.medquote__mark {
  font-family: var(--font-display);
  font-size: 3rem;
  line-height: 0.1;
  color: var(--teal);
  display: block;
  height: 22px;
}
.medquote__text {
  font-family: var(--font-display);
  font-size: 1.06rem;
  line-height: 1.5;
  margin-bottom: 16px;
}
.medquote__by {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--ink-faint);
}

/* --- program-director pitch callout --- */
.meded__pitch {
  border-left: 3px solid var(--teal);
  background: rgba(14, 95, 88, 0.06);
  border-radius: 0 10px 10px 0;
  padding: 26px 30px;
}
.meded__pitch-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--teal);
  margin-bottom: 9px;
}
.meded__pitch p:not(.meded__pitch-label) {
  font-size: 1.02rem;
  color: var(--ink-soft);
}

/* ============================================================
   JOIN
   ============================================================ */
.section--join {
  max-width: none;
  background: var(--teal-deep);
  color: var(--paper);
  background-image:
    radial-gradient(700px 400px at 85% 110%, rgba(188, 107, 38, 0.22), transparent 70%),
    linear-gradient(rgba(255,255,255,0.04) 1px, transparent 1px);
  background-size: auto, 100% 64px;
}
.join__inner { max-width: var(--maxw); margin: 0 auto; }
.section__num--light { border-color: rgba(255,255,255,0.45); color: var(--paper); }
.join__title {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 6vw, 4rem);
  font-weight: 500;
  letter-spacing: -0.03em;
  margin: 16px 0 18px;
}
.join__lede {
  font-size: 1.18rem;
  color: rgba(241, 238, 227, 0.78);
  max-width: 620px;
  margin-bottom: 52px;
  font-family: var(--font-display);
}
.join__cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.join__card {
  border: 1px solid rgba(255,255,255,0.16);
  border-radius: 14px;
  padding: 28px;
  background: rgba(255,255,255,0.035);
  transition: background 0.25s var(--ease), transform 0.25s var(--ease);
}
.join__card:hover { background: rgba(255,255,255,0.07); transform: translateY(-3px); }
.join__card h3 {
  font-family: var(--font-display);
  font-size: 1.32rem;
  font-weight: 500;
  margin-bottom: 8px;
}
.join__card p { font-size: 0.93rem; color: rgba(241,238,227,0.72); margin-bottom: 16px; }
.link-arrow {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: #E9A766;
  border-bottom: 1px solid rgba(233,167,102,0.4);
  padding-bottom: 2px;
  transition: color 0.2s var(--ease);
}
.link-arrow:hover { color: #F5C28C; }
.link-arrow span { color: rgba(255,255,255,0.4); }

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  background: var(--ink);
  color: var(--paper);
  padding: 64px 32px 36px;
}
.footer__top {
  max-width: var(--maxw);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 24px;
  padding-bottom: 30px;
  border-bottom: 1px solid rgba(255,255,255,0.12);
}
.footer__brand {
  display: flex;
  align-items: center;
  gap: 9px;
  font-family: var(--font-display);
  font-size: 1.2rem;
}
.footer__brand strong { color: #4FA89D; }
.footer__brand svg { width: 26px; height: 26px; color: #4FA89D; }
.footer__nav { display: flex; gap: 24px; flex-wrap: wrap; }
.footer__nav a { font-size: 0.9rem; color: rgba(241,238,227,0.65); transition: color 0.2s var(--ease); }
.footer__nav a:hover { color: var(--paper); }
.footer__bottom {
  max-width: var(--maxw);
  margin: 24px auto 0;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 0.82rem;
  color: rgba(241,238,227,0.5);
}

/* ============================================================
   SCROLL REVEAL
   ============================================================ */
.reveal {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
  transition-delay: calc(var(--d, 0) * 90ms);
}
.reveal.is-visible { opacity: 1; transform: translateY(0); }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .spine-col use, .spine-col .sacrum { animation: none; stroke-dashoffset: 0; }
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 920px) {
  .hero__spine { opacity: 0.16; right: -60px; width: 360px; }
  .project__layout, .org__layout, .workshop__layout { grid-template-columns: 1fr; gap: 40px; }
  .dataset__row, .goals__grid, .join__cards { grid-template-columns: 1fr; }
  .people__grid { grid-template-columns: 1fr; }
  .goals__grid { gap: 1px; }
  .meded__stats { grid-template-columns: 1fr 1fr; }
  .meded__quotes { grid-template-columns: 1fr; }
  .dumbbell { grid-template-columns: 180px 1fr 48px; gap: 14px; }
}

@media (max-width: 680px) {
  body { font-size: 16px; }
  .section { padding: 84px 22px; }
  .hero { padding: 150px 22px 90px; min-height: auto; }
  .nav { padding: 14px 22px; }
  .nav__links {
    position: fixed;
    top: 64px; left: 0; right: 0;
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
    background: var(--paper-card);
    border-bottom: 1px solid var(--line);
    padding: 16px 22px 24px;
    transform: translateY(-130%);
    transition: transform 0.36s var(--ease);
  }
  .nav__links.is-open { transform: translateY(0); }
  .nav__links a { padding: 10px 0; width: 100%; font-size: 1rem; }
  .nav__cta { margin-top: 8px; }
  .nav__toggle { display: flex; }
  .hero__stats { grid-template-columns: 1fr 1fr; gap: 20px; }
  .dataset--flagship { padding: 30px 24px; }
  .dataset__specs li { flex-direction: column; gap: 2px; }
  .spec-v { text-align: left; }
  .footer__top { flex-direction: column; align-items: flex-start; }
  .meded__chart { padding: 24px; }
  .meded__stats { grid-template-columns: 1fr; }
  .dumbbell {
    grid-template-columns: 1fr auto;
    grid-template-areas: "label label" "track delta";
    gap: 6px 14px;
  }
  .dumbbell__label { grid-area: label; }
  .dumbbell__track { grid-area: track; }
  .dumbbell__delta { grid-area: delta; align-self: center; }
}