/* CPDSE — People page (radial ecosystem viz + filterable directory)
   ----------------------------------------------------------------------
   Designed to slot into the existing Jekyll site:
   - Site-wide :root tokens are reused (var(--green), var(--accent),
     var(--paper), var(--ink), var(--font-display), var(--space-md), …).
   - The page banner is rendered by _layouts/page.html (.page-hero).
   - Sections below break out of .page-body's 720px child constraint with
     the same `width: 100vw; margin-left: calc(50% - 50vw)` pattern that
     .people-directory in main.css already uses.                            */

.cpdse-people {
  --gold:        var(--accent, #D6C17C);
  --gold-soft:   #E4D7A1;
  --ivory:       #F6F1DC;
  --sage:        #5F7D61;
  --mint:        #A9BBAA;
  --soft:        var(--paper, #F9F9F9);
  --forest:      var(--green, #3C5E3E);
  --transition:  cubic-bezier(0.22, 1, 0.36, 1);
  --shadow-card: 0 10px 30px rgba(60, 94, 62, 0.10), inset 0 0 0 1px rgba(214, 193, 124, 0.25);
}

/* The section backgrounds below break out to the full viewport width with
   `width: 100vw`. Since 100vw includes the vertical scrollbar, this would
   otherwise trigger a horizontal scrollbar — clip horizontal overflow at
   the root to prevent that. `overflow-x: clip` is preferred over
   `overflow-x: hidden` because it doesn't establish a scroll container,
   so the sticky site nav still works correctly. */
html { overflow-x: clip; }
@supports not (overflow-x: clip) {
  html { overflow-x: hidden; }
}

/* Override the `.page-body > * { max-width: 720px }` clamp so the people
   page can use the full container width. We do NOT use a 100vw full-bleed
   trick — that creates a horizontal scrollbar at narrower viewports
   because 100vw includes the scrollbar, which then shifts the whole
   page-body to the left. Instead we let the section backgrounds extend
   into the .page-body's padding via negative margin-inline, so the
   coloured bands cover the full container width without escaping it. */
.page-body > .cpdse-people {
  max-width: none;
  width: 100%;
  margin: 0;
}

/* Tighten the spacing around the page so sections butt up against
   the site nav/hero/footer instead of floating in white margin. */
.page-body > .cpdse-people {
  margin-top: calc(-1 * var(--space-lg));
  margin-bottom: calc(-1 * var(--space-lg));
}

/* Coloured section bands — alternate ivory / soft white to match the
   site's About-page rhythm. They break out to the full viewport width
   so the bg colour spans edge-to-edge, with `overflow-x: clip` on
   `html` (above) preventing the scrollbar gotcha. */
.cpdse-eco,
.cpdse-dir {
  width: 100vw;
  margin-left: calc(50% - 50vw);
  padding-block: var(--space-lg);
  padding-inline: var(--space-md);
}
.cpdse-eco { background: var(--ivory); }
.cpdse-dir { background: var(--soft); }

/* Inner containers re-use the parent width and center any narrower
   max-width inside. */
.cpdse-eco__inner,
.cpdse-dir__inner {
  width: 100%;
  max-width: var(--max-w, 1200px);
  margin: 0 auto;
}

/* Eyebrow + section title (used above the directory) */
.cpdse-section__eyebrow {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--sage);
  margin: 0 0 0.75rem;
}
.cpdse-section__title {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 2.6vw, 2.2rem);
  line-height: 1.1;
  letter-spacing: -0.02em;
  font-weight: 400;
  color: var(--forest);
  margin: 0 0 1rem;
  max-width: 24ch;
}

/* ── Ring tile counts (above the radial viz) ─────────────── */
.cpdse-rings {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.75rem;
  max-width: 460px;
  margin: 0 auto var(--space-md);   /* horizontally centred above the viz */
}
.cpdse-rings__tile {
  padding: 0.85rem 1rem;
  border-radius: 12px;
  background: rgba(60, 94, 62, 0.04);
  border: 1px solid rgba(60, 94, 62, 0.18);
}
.cpdse-rings__tile-label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--sage);
  margin: 0 0 0.25rem;
}
.cpdse-rings__tile-count {
  font-family: var(--font-display);
  font-size: 1.85rem;
  line-height: 1;
  color: var(--forest);
  font-weight: 400;
}
.cpdse-rings__tile-sub {
  font-size: 0.7rem;
  color: var(--sage);
  opacity: 0.7;
  margin: 0.2rem 0 0;
}

/* ── Radial ecosystem viz ─────────────────────────────────── */
.eco-viz {
  position: relative;
  width: 100%;
  height: 720px;
  max-width: 880px;
  margin: 1rem auto 0;
}
.eco-viz__svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}
.eco-viz__guide {
  fill: none;
  stroke: var(--mint);
  stroke-opacity: 0;
  stroke-width: 1;
  stroke-dasharray: 3 5;
  transition: stroke-opacity 900ms ease;
}
.eco-viz.is-revealed .eco-viz__guide:nth-child(1) { stroke-opacity: 0.40; transition-delay: 100ms; }
.eco-viz.is-revealed .eco-viz__guide:nth-child(2) { stroke-opacity: 0.30; transition-delay: 300ms; }
.eco-viz.is-revealed .eco-viz__guide:nth-child(3) { stroke-opacity: 0.20; transition-delay: 500ms; }
.eco-viz__core-fill {
  fill: var(--forest);
  fill-opacity: 0;
  transition: fill-opacity 1200ms ease 400ms;
}
.eco-viz.is-revealed .eco-viz__core-fill { fill-opacity: 0.06; }

.eco-node {
  position: absolute;
  left: 50%;
  top: 50%;
  background: transparent;
  border: 0;
  padding: 0;
  cursor: pointer;
  transition: transform 300ms var(--transition);
  outline: none;
}
.eco-node:focus-visible .eco-node__inner,
.eco-node:hover .eco-node__inner { transform: scale(1.1); }

.eco-node__inner {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--soft);
  box-shadow: 0 0 0 2px var(--soft), 0 0 0 3px var(--gold);
  overflow: hidden;
  opacity: 0;
  transform: scale(0.6);
  transition: transform 220ms var(--transition);
}
.eco-node--lead .eco-node__inner { box-shadow: 0 0 0 2px var(--soft), 0 0 0 4px var(--gold); }

.eco-viz.is-revealed .eco-node__inner {
  animation: eco-pop 620ms cubic-bezier(0.34, 1.56, 0.64, 1) both;
  animation-delay: var(--enter-delay, 0ms);
}
@keyframes eco-pop {
  0%   { opacity: 0; transform: scale(0.6); }
  70%  { opacity: 1; transform: scale(1.06); }
  100% { opacity: 1; transform: scale(1); }
}

.eco-node__inner img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  opacity: 0;
  transition: opacity 480ms ease-out;
}
.eco-node__inner img.is-loaded { opacity: 1; }

.eco-node__initials {
  width: 100%;
  height: 100%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--ivory);
  font-family: var(--font-display);
  font-weight: 400;
  letter-spacing: 0.03em;
}

.eco-node--placeholder .eco-node__inner {
  background: var(--gold);
  color: var(--forest);
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 0.7rem;
  text-align: center;
  line-height: 1.05;
  padding: 0.25rem;
  box-shadow: 0 0 0 2px var(--soft), 0 0 0 3px rgba(214,193,124,0.4);
}

/* tooltip — sits above every avatar (max avatar z-index is 9 for the lead) */
.eco-tooltip {
  position: absolute;
  left: 50%;
  bottom: 14px;
  transform: translateX(-50%);
  z-index: 50;
  background: var(--forest);
  color: var(--ivory);
  padding: 0.5rem 1rem;
  border-radius: 9999px;
  font-size: 0.85rem;
  pointer-events: none;
  box-shadow: 0 8px 24px rgba(60, 94, 62, 0.4);
  opacity: 0;
  transition: opacity 200ms ease;
  max-width: calc(100% - 2rem);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.eco-tooltip.is-visible { opacity: 1; }
.eco-tooltip__title { font-weight: 700; }
.eco-tooltip__sub { opacity: 0.8; margin-left: 0.4rem; }

.eco-legend {
  margin: 1rem auto 0;
  text-align: center;
  font-size: 0.78rem;
  color: var(--ink);
  opacity: 0.6;
  max-width: 480px;
}

/* ── Drawer (click-to-open person details) ────────────── */
.eco-drawer {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: none;
  align-items: flex-end;
  justify-content: center;
}
@media (min-width: 768px) {
  .eco-drawer { align-items: center; }
}
.eco-drawer.is-open { display: flex; }
.eco-drawer__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(60, 94, 62, 0.7);
  backdrop-filter: blur(2px);
  animation: drawer-fade 280ms ease both;
}
@keyframes drawer-fade { from { opacity: 0; } to { opacity: 1; } }

.eco-drawer__card {
  position: relative;
  width: 100%;
  max-width: 32rem;
  margin: 0;
  background: var(--soft);
  border-radius: 18px 18px 0 0;
  padding: 1.75rem;
  box-shadow: 0 30px 80px rgba(60, 94, 62, 0.5);
  animation: drawer-up 380ms var(--transition) both;
  max-height: 90vh;
  overflow-y: auto;
}
@media (min-width: 768px) {
  .eco-drawer__card { margin: 1rem; border-radius: 18px; }
}
@keyframes drawer-up {
  from { opacity: 0; transform: translateY(28px); }
  to   { opacity: 1; transform: translateY(0); }
}

.eco-drawer__close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
  background: var(--ivory);
  color: var(--forest);
  border: 0;
  font-size: 1.2rem;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.eco-drawer__close:hover { background: var(--gold); }

.eco-drawer__head { display: flex; gap: 1rem; align-items: flex-start; padding-right: 2rem; }
.eco-drawer__avatar { width: 64px; height: 64px; flex-shrink: 0; border-radius: 50%; overflow: hidden; box-shadow: 0 0 0 2px var(--soft), 0 0 0 4px var(--gold); }
.eco-drawer__avatar img { width: 100%; height: 100%; object-fit: cover; }
.eco-drawer__name {
  font-family: var(--font-display);
  font-size: 1.5rem;
  line-height: 1.1;
  margin: 0 0 0.2rem;
  color: var(--forest);
  font-weight: 400;
}
.eco-drawer__title { font-size: 0.92rem; margin: 0 0 0.15rem; color: var(--ink); }
.eco-drawer__affiliation { font-size: 0.8rem; opacity: 0.7; margin: 0; }

.eco-drawer__field { margin-top: 1.1rem; }
.eco-drawer__field-label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--sage);
  opacity: 0.75;
  margin: 0 0 0.4rem;
}
.eco-drawer__field-text { font-size: 0.92rem; line-height: 1.5; margin: 0; color: var(--ink); }

.eco-drawer__circles { display: flex; flex-wrap: wrap; gap: 0.4rem; }
.eco-drawer__circle-pill {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  padding: 0.3rem 0.65rem;
  border-radius: 9999px;
  background: var(--ivory);
  color: var(--forest);
  box-shadow: inset 0 0 0 1px var(--gold);
}

.eco-drawer__links { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.eco-drawer__link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.4rem 0.85rem;
  border-radius: 9999px;
  background: var(--ivory);
  color: var(--forest);
  font-size: 0.82rem;
  font-weight: 600;
  text-decoration: none;
  box-shadow: inset 0 0 0 1px var(--gold);
  transition: background 160ms ease, transform 160ms ease;
}
.eco-drawer__link:hover { background: var(--gold); transform: translateY(-1px); }
.eco-drawer__link svg { width: 14px; height: 14px; }
.eco-drawer__link-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 16px;
  height: 16px;
  font-weight: 700;
  font-size: 0.7rem;
  letter-spacing: -0.02em;
}

/* ── Directory ─────────────────────────────────────────── */
.dir { margin-top: 1rem; }
.dir__filters {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin: 1.25rem 0 1.75rem;
  align-items: center;
  padding: 1rem 1.1rem;
  background: linear-gradient(180deg, rgba(249,249,249,0.96), rgba(232,240,235,0.92));
  border: 1px solid rgba(60,94,62,0.2);
  border-top: 3px solid rgba(60,94,62,0.6);
  border-radius: 10px;
  box-shadow: 0 10px 24px rgba(15,26,20,0.07);
}
.dir__filter {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}
.dir__filter-label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  opacity: 0.7;
}
.dir__filter-select {
  font-family: var(--font-body, Verdana, sans-serif);
  font-size: 0.85rem;
  padding: 0.4rem 0.85rem;
  border-radius: 9999px;
  background: var(--soft);
  color: var(--ink);
  border: 0;
  box-shadow: inset 0 0 0 1px var(--gold);
  cursor: pointer;
}
.dir__filter-search {
  font-family: var(--font-body);
  font-size: 0.85rem;
  padding: 0.4rem 0.85rem;
  border-radius: 9999px;
  background: var(--soft);
  color: var(--ink);
  border: 0;
  box-shadow: inset 0 0 0 1px var(--gold);
  outline: none;
  min-width: 200px;
}
.dir__filter-search::placeholder { color: var(--ink); opacity: 0.5; }

.dir__grid {
  display: grid;
  /* 220px min keeps 3 columns visible down to ~880px viewport and 4
     columns at typical desktop widths (≥1200px). */
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 1rem;
}

.dir__card {
  background: var(--soft);
  border-radius: 16px;
  padding: 1.25rem;
  text-align: left;
  border: 0;
  cursor: pointer;
  box-shadow: var(--shadow-card);
  transition: transform 380ms var(--transition), box-shadow 380ms ease;
  font: inherit;
  color: inherit;
  width: 100%;
}
.dir__card:hover {
  transform: translateY(-3px);
  box-shadow: 0 16px 36px rgba(60, 94, 62, 0.16), inset 0 0 0 1px rgba(214, 193, 124, 0.4);
}
.dir__card-head { display: flex; align-items: flex-start; gap: 0.85rem; }
.dir__card-avatar { width: 48px; height: 48px; flex-shrink: 0; border-radius: 50%; overflow: hidden; box-shadow: 0 0 0 2px var(--soft), 0 0 0 3px var(--gold); }
.dir__card-avatar img { width: 100%; height: 100%; object-fit: cover; }
.dir__card-avatar .eco-node__initials { font-size: 0.85rem; }
.dir__card-name { font-family: var(--font-display); font-size: 1.05rem; line-height: 1.2; margin: 0; color: var(--forest); font-weight: 400; }
.dir__card-title { font-size: 0.78rem; opacity: 0.85; margin: 0.15rem 0 0; }
.dir__card-affil { font-size: 0.7rem; opacity: 0.6; margin: 0.15rem 0 0; }
.dir__card-circles { display: flex; flex-wrap: wrap; gap: 0.3rem; margin-top: 0.75rem; }
.dir__card-circles .eco-drawer__circle-pill { font-size: 0.55rem; padding: 0.22rem 0.5rem; }
.dir__card-research {
  margin-top: 0.75rem;
  font-size: 0.78rem;
  line-height: 1.4;
  opacity: 0.8;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.dir__empty {
  text-align: center;
  padding: 3rem 0;
  opacity: 0.6;
}

/* ── Reveal-on-scroll (used on h2s, paragraphs) ───────── */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 720ms var(--transition), transform 720ms var(--transition);
  will-change: opacity, transform;
}
.reveal.is-revealed { opacity: 1; transform: translateY(0); }

/* ── Reduced motion ───────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  .eco-node__inner,
  .eco-drawer__backdrop,
  .eco-drawer__card,
  .reveal { animation: none !important; transition: none !important; }
  .reveal { opacity: 1; transform: none; }
  .eco-node__inner { opacity: 1; transform: none; }
}

/* ── Responsive (narrow viewports) ───────────────────── */
@media (max-width: 640px) {
  .cpdse-eco, .cpdse-dir { padding: var(--space-md) var(--space-sm); }
  .cpdse-rings { grid-template-columns: 1fr; max-width: none; }
  .eco-viz { height: 560px; }
}