/* =========================================================
   Renee Rookwood — editorial system
   ========================================================= */

:root {
  --paper: #f6f4ef;
  --paper-2: #eeebe3;
  --ink: #13202a;
  --ink-2: #46525c;
  --ink-3: #7b848b;
  --navy: #1c3a4b;
  --gold: #a9853f;
  --gold-soft: #c49a4a;
  --rule: #d9d4c8;
  --night: #102029;
  --night-rule: rgba(246, 244, 239, 0.14);

  --serif: "Newsreader", Georgia, "Times New Roman", serif;
  --sans: "IBM Plex Sans", system-ui, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, monospace;

  --ease: cubic-bezier(0.22, 0.61, 0.21, 1);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --gutter: 32px;
}

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

html { scroll-behavior: smooth; scroll-padding-top: 88px; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, blockquote {
  font-family: var(--serif);
  font-weight: 400;
  line-height: 1.08;
  letter-spacing: -0.015em;
  margin: 0;
}
h1 em, h2 em, blockquote em { font-style: italic; font-weight: 300; }
p { margin: 0; }
a { color: inherit; }
img { display: block; max-width: 100%; }
figure { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }

::selection { background: color-mix(in srgb, var(--gold) 30%, transparent); }

:focus-visible { outline: 2px solid var(--gold); outline-offset: 3px; }

.wrap { width: min(1240px, 100% - 48px); margin-inline: auto; }

.mono {
  font-family: var(--mono);
  font-size: 0.78em;
  letter-spacing: 0.02em;
}
.label {
  font-family: var(--mono);
  font-size: 0.74rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-3);
}

section { padding: 128px 0; }

/* ---------- Section heading: "01 — The Challenge" ---------- */
.sec-head {
  display: flex;
  align-items: baseline;
  gap: 18px;
  padding-top: 18px;
  margin-bottom: 64px;
  position: relative;
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.sec-head::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: currentColor;
  opacity: 0.22;
  transform-origin: left;
}
.sec-num { color: var(--gold); }
.sec-name { color: var(--ink-2); }
.sec-head .text-link { margin-left: auto; text-transform: none; letter-spacing: 0; font-family: var(--sans); font-size: 0.9rem; }

/* ---------- Links & buttons ---------- */
.text-link {
  position: relative;
  font-weight: 500;
  text-decoration: none;
  color: var(--ink);
  padding-bottom: 2px;
}
.text-link::after {
  content: "→";
  display: inline-block;
  margin-left: 0.4em;
  transition: transform 0.35s var(--ease-out);
}
.text-link::before {
  content: "";
  position: absolute;
  left: 0;
  right: 1.3em;
  bottom: 0;
  height: 1px;
  background: currentColor;
  transform-origin: right;
  transition: transform 0.45s var(--ease-out);
}
.text-link:hover::after { transform: translateX(4px); }
.text-link:hover::before { transform: scaleX(0); }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 15px 22px;
  background: var(--ink);
  color: var(--paper);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
  border-radius: 2px;
  position: relative;
  overflow: hidden;
  isolation: isolate;
}
.btn svg { width: 10px; height: 10px; fill: currentColor; }
.btn::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: var(--navy);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.5s var(--ease-out);
}
.btn:hover::before { transform: scaleX(1); }
.btn-meta {
  font-family: var(--mono);
  font-size: 0.75rem;
  opacity: 0.6;
  padding-left: 12px;
  border-left: 1px solid rgba(246, 244, 239, 0.25);
}

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--paper) 0%, transparent);
  border-bottom: 1px solid transparent;
  transition: background 0.4s, border-color 0.4s;
}
.site-header.scrolled {
  background: color-mix(in srgb, var(--paper) 90%, transparent);
  backdrop-filter: saturate(1.4) blur(14px);
  border-bottom-color: var(--rule);
}
.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--ink);
  font-family: var(--serif);
  font-size: 1.28rem;
  letter-spacing: -0.01em;
}
.brand-cred { color: var(--ink-3); }
.mark { width: 26px; height: 26px; flex: none; }
.mark path { fill: none; stroke: currentColor; stroke-width: 1.4; }
.mark circle { fill: currentColor; }
.mark .mark-accent { fill: var(--gold); }
.brand:hover .mark { transform: rotate(-8deg); }
.mark { transition: transform 0.6s var(--ease-out); }

.nav { display: flex; gap: 36px; }
.nav a {
  position: relative;
  font-size: 0.92rem;
  color: var(--ink-2);
  text-decoration: none;
  padding: 4px 0;
  transition: color 0.25s;
}
.nav a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -2px;
  height: 1px;
  background: var(--ink);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.45s var(--ease-out);
}
.nav a:hover,
.nav a.active,
.nav a[aria-current="page"] { color: var(--ink); }
.nav a:hover::after,
.nav a.active::after,
.nav a[aria-current="page"]::after { transform: scaleX(1); transform-origin: left; }

.menu-btn {
  display: none;
  width: 40px;
  height: 40px;
  background: none;
  border: 0;
  cursor: pointer;
  position: relative;
}
.menu-btn span {
  position: absolute;
  left: 10px;
  right: 10px;
  height: 1.5px;
  background: var(--ink);
  transition: transform 0.35s var(--ease-out);
}
.menu-btn span:first-child { top: 16px; }
.menu-btn span:last-child { top: 23px; }
.menu-btn[aria-expanded="true"] span:first-child { transform: translateY(3.5px) rotate(45deg); }
.menu-btn[aria-expanded="true"] span:last-child { transform: translateY(-3.5px) rotate(-45deg); }

/* ---------- Hero ---------- */
.hero { padding: 56px 0 0; }
.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
  gap: 88px;
  align-items: end;
}
.hero-copy { padding-bottom: 24px; }
.hero .label { margin-bottom: 28px; }
.hero h1 {
  font-size: clamp(2.9rem, 6.4vw, 5.6rem);
  font-weight: 300;
  line-height: 1.02;
  letter-spacing: -0.028em;
  margin-bottom: 36px;
}
.hero h1 em .wi,
html:not(.js) .hero h1 em {
  text-decoration: underline;
  text-decoration-thickness: 1.5px;
  text-underline-offset: 0.16em;
  text-decoration-skip-ink: auto;
  text-decoration-color: var(--gold);
}
.hero h1 em .wm { padding-bottom: 0.32em; margin-bottom: -0.32em; }
.js .hero h1 em .wi { text-decoration-color: transparent; transition: transform 1.1s var(--ease-out), text-decoration-color 1s var(--ease) 1.2s; transition-delay: calc(var(--d, 0s) + var(--i) * 45ms), 1.2s; }
.js .hero h1.in em .wi { text-decoration-color: var(--gold); }
.lede {
  font-size: 1.2rem;
  line-height: 1.6;
  color: var(--ink-2);
  max-width: 33em;
  margin-bottom: 40px;
}
.actions { display: flex; align-items: center; gap: 32px; flex-wrap: wrap; }

.media .frame { overflow: hidden; border-radius: 2px; background: var(--paper-2); }
.media img { width: 100%; height: 100%; object-fit: cover; }
.hero-figure .frame { aspect-ratio: 4 / 5; }
.hero-figure img { object-position: 50% 22%; }
figcaption {
  margin-top: 14px;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  color: var(--ink-3);
}

.facts {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin: 72px 0 0;
  border-top: 1px solid var(--rule);
}
.facts > div {
  padding: 22px 24px 26px 0;
  border-right: 1px solid var(--rule);
}
.facts > div + div { padding-left: 24px; }
.facts > div:last-child { border-right: 0; }
.facts dt {
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin-bottom: 6px;
}
.facts dd { margin: 0; font-family: var(--serif); font-size: 1.15rem; line-height: 1.35; }
.facts a { text-decoration: none; border-bottom: 1px solid var(--rule); transition: border-color 0.3s; }
.facts a:hover { border-color: var(--ink); }
.facts .mono { color: var(--ink-3); margin-left: 6px; }

/* ---------- 01 The challenge ---------- */
.challenge { padding-bottom: 64px; }
.challenge-grid {
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
  gap: 96px;
}
.stage-block {
  min-height: 62vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 28px;
}
.stage-block:first-child { justify-content: flex-start; min-height: 52vh; }
.stage-block h2 { font-size: clamp(2.2rem, 4.2vw, 3.6rem); font-weight: 300; }
.stage-block p { font-size: 1.12rem; color: var(--ink-2); max-width: 30em; }
.stage-block blockquote {
  font-size: clamp(1.8rem, 3.2vw, 2.6rem);
  font-style: italic;
  font-weight: 300;
  line-height: 1.18;
  color: var(--navy);
  padding-left: 28px;
  border-left: 1px solid var(--gold);
}

.system {
  position: sticky;
  top: 18vh;
  align-self: start;
  height: 64vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.system svg { width: 100%; max-height: 54vh; overflow: visible; }
.system figcaption {
  position: relative;
  height: calc(1.7em + 15px);
  margin-top: 28px;
  padding-top: 14px;
  border-top: 1px solid var(--rule);
}
.system .cap {
  position: absolute;
  left: 0;
  top: 14px;
  opacity: 0;
  transform: translateY(6px);
  transition: opacity 0.5s var(--ease), transform 0.5s var(--ease);
  color: var(--ink-2);
}
.system .cap .mono { color: var(--gold); margin-right: 12px; }
.system[data-stage="1"] .cap[data-for="1"],
.system[data-stage="2"] .cap[data-for="2"],
.system[data-stage="3"] .cap[data-for="3"] { opacity: 1; transform: none; }

.team { transition: opacity 0.9s var(--ease), transform 0.9s var(--ease-out); transform-box: fill-box; transform-origin: center; transition-delay: calc(var(--i) * 0.15s); }
.system[data-stage="0"] .team { opacity: 0; transform: scale(0.92); }
.team .boundary {
  fill: none;
  stroke: var(--ink-3);
  stroke-width: 1;
  stroke-dasharray: 2 5;
  opacity: 0.7;
  transition: opacity 0.8s, stroke 0.8s;
}
.team .tie { stroke: var(--ink); stroke-width: 1; opacity: 0.45; }
.team .tie-faint { opacity: 0.16; }
.team .node { fill: var(--ink); }
.team .hub { fill: var(--paper); stroke: var(--ink); stroke-width: 1.5; transition: fill 0.6s, stroke 0.6s; }
.team-label {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  fill: var(--ink-3);
}
.bridge {
  stroke: var(--navy);
  stroke-width: 1.4;
  stroke-dasharray: var(--len);
  stroke-dashoffset: var(--len);
  transition: stroke-dashoffset 1.2s var(--ease), stroke 0.8s;
  transition-delay: calc(var(--i) * 0.25s), 0s;
}
.system[data-stage="2"] .bridge,
.system[data-stage="3"] .bridge { stroke-dashoffset: 0; }
.system[data-stage="3"] .bridge { stroke: var(--gold); }
.system[data-stage="3"] .hub { fill: var(--gold); stroke: var(--gold); }
.system[data-stage="3"] .boundary { opacity: 0.25; }
.pulse { fill: var(--gold); opacity: 0; offset-rotate: 0deg; }
.system[data-stage="3"] .pulse { animation: travel 3.2s var(--ease) infinite; animation-delay: calc(0.6s + var(--i) * 1.05s); }
@keyframes travel {
  0% { offset-distance: 0%; opacity: 0; }
  12%, 88% { opacity: 1; }
  100% { offset-distance: 100%; opacity: 0; }
}

/* ---------- 02 Film ---------- */
.film { background: var(--night); color: var(--paper); }
.film .sec-name { color: rgba(246, 244, 239, 0.7); }
.film-grid {
  display: grid;
  grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
  gap: 72px;
  align-items: end;
}
.film-copy h2 { font-size: clamp(2rem, 3.6vw, 3rem); font-weight: 300; margin-bottom: 24px; }
.film-copy p { color: rgba(246, 244, 239, 0.72); }
.video-frame {
  position: relative;
  aspect-ratio: 16 / 9;
  background: #000;
  border-radius: 2px;
  overflow: hidden;
}
.video-frame iframe,
.video-frame video { width: 100%; height: 100%; border: 0; display: block; }
.video-poster {
  all: unset;
  position: absolute;
  inset: 0;
  cursor: pointer;
  display: grid;
  place-items: center;
}
.video-poster img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 1.2s var(--ease-out), filter 0.6s;
}
.video-poster:hover img { transform: scale(1.025); filter: brightness(0.94); }
.play {
  position: relative;
  width: 84px;
  height: 84px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: rgba(16, 32, 41, 0.78);
  backdrop-filter: blur(6px);
  border: 1px solid rgba(246, 244, 239, 0.35);
  transition: background 0.4s, transform 0.5s var(--ease-out);
}
.play svg { width: 18px; height: 18px; fill: var(--paper); margin-left: 3px; transition: fill 0.4s; }
.video-poster:hover .play { background: var(--paper); transform: scale(1.06); }
.video-poster:hover .play svg { fill: var(--night); }
.film-caption {
  display: flex;
  justify-content: space-between;
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px solid var(--night-rule);
  font-size: 0.9rem;
  color: rgba(246, 244, 239, 0.72);
}

/* ---------- 03 Framework ---------- */
.framework-intro {
  display: grid;
  grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  gap: 72px;
  align-items: end;
  margin-bottom: 88px;
}
.framework-intro h2 { font-size: clamp(2.6rem, 5.6vw, 4.6rem); font-weight: 300; }
.framework-intro h2 em { color: var(--gold); }
.framework-intro p { color: var(--ink-2); font-size: 1.1rem; }

.framework-grid {
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  gap: 88px;
  align-items: center;
}
.cycle svg { width: 100%; overflow: visible; }
.cycle-track { fill: none; stroke: var(--rule); stroke-width: 1; }
.arc-line {
  fill: none;
  stroke: var(--ink);
  stroke-width: 1.5;
  stroke-linecap: round;
  stroke-dasharray: var(--len);
  transition: stroke 0.4s, stroke-width 0.4s;
}
.arc-head { fill: none; stroke: var(--ink); stroke-width: 1.5; stroke-linecap: round; stroke-linejoin: round; transition: stroke 0.4s; }
.arc-node { fill: var(--paper); stroke: var(--gold); stroke-width: 1.5; transition: fill 0.4s; }
.arc-label { font-family: var(--serif); font-size: 26px; font-weight: 400; fill: var(--ink); transition: fill 0.4s; }
.arc-num { font-family: var(--mono); font-size: 11px; letter-spacing: 0.1em; fill: var(--gold); transform: translateY(-10px); }
.cycle-center { font-family: var(--serif); font-style: italic; font-weight: 300; font-size: 21px; fill: var(--ink-2); }
.cycle-center-label { font-family: var(--mono); font-size: 10px; letter-spacing: 0.16em; text-transform: uppercase; fill: var(--ink-3); }

.js .cycle .arc-line { stroke-dashoffset: var(--len); transition: stroke-dashoffset 1.4s var(--ease), stroke 0.4s, stroke-width 0.4s; }
.js .cycle .arc-head { opacity: 0; transition: opacity 0.4s, stroke 0.4s; }
.js .cycle [data-arc="see"] { --delay: 0.2s; }
.js .cycle [data-arc="align"] { --delay: 1s; }
.js .cycle [data-arc="sustain"] { --delay: 1.8s; }
.js .cycle.in .arc-line { stroke-dashoffset: 0; transition-delay: var(--delay), 0s, 0s; }
.js .cycle.in .arc-head { opacity: 1; transition-delay: calc(var(--delay) + 1.1s), 0s; }
.js .cycle[data-reveal] { transform: none; }

.cycle[data-active="see"] [data-arc="see"] .arc-line,
.cycle[data-active="align"] [data-arc="align"] .arc-line,
.cycle[data-active="sustain"] [data-arc="sustain"] .arc-line { stroke: var(--gold); stroke-width: 2.5; }
.cycle[data-active="see"] [data-arc="see"] .arc-head,
.cycle[data-active="align"] [data-arc="align"] .arc-head,
.cycle[data-active="sustain"] [data-arc="sustain"] .arc-head { stroke: var(--gold); }
.cycle[data-active="see"] [data-arc="see"] .arc-node,
.cycle[data-active="align"] [data-arc="align"] .arc-node,
.cycle[data-active="sustain"] [data-arc="sustain"] .arc-node { fill: var(--gold); }

.steps { border-top: 1px solid var(--rule); }
.steps li {
  display: grid;
  grid-template-columns: 64px 1fr;
  gap: 16px;
  padding: 30px 0;
  border-bottom: 1px solid var(--rule);
  cursor: default;
  transition: padding-left 0.5s var(--ease-out);
}
.step-num { font-family: var(--mono); font-size: 0.8rem; color: var(--gold); padding-top: 10px; }
.steps h3 { font-size: 2rem; margin-bottom: 10px; display: flex; align-items: baseline; flex-wrap: wrap; gap: 6px 16px; }
.steps h3 span { font-style: italic; font-weight: 300; font-size: 1.15rem; color: var(--navy); letter-spacing: 0; }
.steps p { color: var(--ink-2); max-width: 34em; }
.steps li:hover,
.steps li.active { padding-left: 10px; }

.cycle-note {
  margin-top: 64px;
  max-width: 44em;
  margin-left: auto;
  font-family: var(--serif);
  font-size: 1.35rem;
  line-height: 1.45;
  font-style: italic;
  font-weight: 300;
  color: var(--ink-2);
  padding-left: 28px;
  border-left: 1px solid var(--gold);
}

/* ---------- 04 Research index ---------- */
.research { background: var(--paper-2); }
.index { border-top: 1px solid var(--ink); }
.index li {
  display: grid;
  grid-template-columns: 120px minmax(0, 1fr) auto;
  gap: 32px;
  align-items: baseline;
  padding: 36px 0;
  border-bottom: 1px solid var(--rule);
}
.index-year { color: var(--ink-3); font-size: 0.85rem; }
.index h3 { font-size: clamp(1.5rem, 2.6vw, 2.1rem); font-weight: 400; margin-bottom: 10px; }
.index h3 a { text-decoration: none; background: linear-gradient(currentColor, currentColor) 0 100% / 0 1px no-repeat; transition: background-size 0.6s var(--ease-out); }
.index li:hover h3 a { background-size: 100% 1px; }
.index p { color: var(--ink-2); font-size: 0.97rem; }
.arrow-link {
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  border: 1px solid var(--rule);
  border-radius: 50%;
  text-decoration: none;
  transition: background 0.4s, color 0.4s, border-color 0.4s, transform 0.5s var(--ease-out);
}
.index li:hover .arrow-link { background: var(--ink); color: var(--paper); border-color: var(--ink); transform: translateX(4px); }
.status {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-2);
  white-space: nowrap;
}
.status-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--gold); position: relative; }
.status-dot::after {
  content: "";
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  border: 1px solid var(--gold);
  animation: breathe 2.8s var(--ease) infinite;
}
@keyframes breathe { 0% { transform: scale(0.6); opacity: 0.9; } 100% { transform: scale(1.6); opacity: 0; } }

/* ---------- 05 About ---------- */
.about-grid {
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  gap: 96px;
  align-items: start;
}
.about-figure { position: sticky; top: 120px; }
.about-figure .frame { aspect-ratio: 4 / 5; }
.about-figure img { object-position: 50% 15%; }
.about-copy h2 { font-size: clamp(2.2rem, 4.2vw, 3.4rem); font-weight: 300; margin-bottom: 36px; }
.about-copy p { color: var(--ink-2); max-width: 36em; }
.about-copy p + p { margin-top: 18px; }
.about-copy .about-lede {
  font-family: var(--serif);
  font-size: 1.55rem;
  line-height: 1.38;
  font-weight: 300;
  color: var(--ink);
  margin-bottom: 30px;
}
.focus { margin-top: 56px; }
.focus .label { margin-bottom: 14px; }
.focus ul { display: grid; grid-template-columns: 1fr 1fr; border-top: 1px solid var(--rule); }
.focus li {
  padding: 16px 0;
  border-bottom: 1px solid var(--rule);
  font-family: var(--serif);
  font-size: 1.2rem;
}
.focus li:nth-child(odd) { padding-right: 24px; }
.focus li .mono { color: var(--gold); margin-right: 10px; }

/* ---------- 06 Contact ---------- */
.contact { padding-bottom: 112px; }
.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  gap: 96px;
  align-items: start;
}
.contact h2 { font-size: clamp(3rem, 7vw, 6rem); font-weight: 300; letter-spacing: -0.03em; margin-bottom: 28px; }
.contact-grid > div p { color: var(--ink-2); max-width: 24em; }
.channels { border-top: 1px solid var(--ink); }
.channels a {
  display: grid;
  grid-template-columns: 110px minmax(0, 1fr) auto;
  align-items: center;
  gap: 24px;
  padding: 26px 0;
  border-bottom: 1px solid var(--rule);
  text-decoration: none;
  position: relative;
}
.channels a::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 1px;
  background: var(--ink);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.6s var(--ease-out);
}
.channels a:hover::before { transform: scaleX(1); }
.channel-value { font-family: var(--serif); font-size: clamp(1.25rem, 2.2vw, 1.75rem); overflow-wrap: anywhere; }
.channels .arrow { font-size: 1.2rem; transition: transform 0.5s var(--ease-out); }
.channels a:hover .arrow { transform: translateX(6px); }

/* ---------- Footer ---------- */
.site-footer {
  background: var(--night);
  color: rgba(246, 244, 239, 0.7);
  font-size: 0.85rem;
  padding: 36px 0;
}
.site-footer .wrap { display: flex; justify-content: space-between; align-items: center; gap: 20px; flex-wrap: wrap; }
.footer-brand { display: inline-flex; align-items: center; gap: 10px; color: var(--paper); font-family: var(--serif); font-size: 1.05rem; }
.footer-brand .mark { width: 22px; height: 22px; }

/* ---------- Research page ---------- */
.page-head { padding: 72px 0 96px; }
.page-head .label { margin-bottom: 28px; }
.page-head h1 { font-size: clamp(2.8rem, 6vw, 5rem); font-weight: 300; letter-spacing: -0.028em; max-width: 14em; margin-bottom: 32px; }
.page-head p:not(.label) { color: var(--ink-2); font-size: 1.2rem; max-width: 34em; }
.page-section { padding: 0 0 112px; }
.index .abstract { margin-top: 18px; max-width: 42em; font-size: 1.02rem; line-height: 1.7; }
.index .meta { color: var(--ink-3); font-size: 0.92rem; }

/* =========================================================
   Motion
   ========================================================= */

/* Split headings: words rise out of a mask */
.wm { display: inline-block; overflow: hidden; vertical-align: top; padding: 0 0.06em 0.12em; margin: 0 -0.06em -0.12em; }
.wi { display: inline-block; }
.js [data-split] .wi {
  transform: translateY(110%);
  transition: transform 1.1s var(--ease-out);
  transition-delay: calc(var(--d, 0s) + var(--i) * 45ms);
}
.js [data-split].in .wi { transform: none; }

/* Fade-up */
.js [data-reveal] {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 1s var(--ease), transform 1s var(--ease-out);
  transition-delay: var(--d, 0s);
}
.js [data-reveal].in { opacity: 1; transform: none; }

/* Section rules draw across */
.js .sec-head[data-reveal] { transform: none; }
.js .sec-head::before { transform: scaleX(0); transition: transform 1.4s var(--ease-out); }
.js .sec-head.in::before { transform: scaleX(1); }

/* Images unveil */
.js .media[data-reveal] { transform: none; }
.js .media .frame { clip-path: inset(100% 0 0 0); transition: clip-path 1.4s var(--ease-out); }
.js .media img { transform: scale(1.08); transition: transform 1.8s var(--ease-out); }
.js .media.in .frame { clip-path: inset(0 0 0 0); }
.js .media.in img { transform: none; }

/* ---------- Responsive ---------- */
@media (max-width: 960px) {
  section { padding: 96px 0; }
  .hero-grid,
  .challenge-grid,
  .film-grid,
  .framework-intro,
  .framework-grid,
  .about-grid,
  .contact-grid { grid-template-columns: 1fr; gap: 48px; }

  .hero { padding-top: 32px; }
  .hero-figure { max-width: 420px; }
  .facts { grid-template-columns: 1fr; margin-top: 56px; }
  .facts > div,
  .facts > div + div { padding: 18px 0; border-right: 0; border-bottom: 1px solid var(--rule); }

  .challenge-grid { gap: 0; }
  .system { position: sticky; top: 80px; height: auto; order: -1; padding: 16px 0 0; background: var(--paper); z-index: 2; box-shadow: 0 18px 18px -6px var(--paper); }
  .system .cap { font-size: 0.85rem; }
  .system svg { max-height: 34vh; }
  .system figcaption { margin-top: 10px; }
  .stage-block,
  .stage-block:first-child { min-height: 0; padding: 48px 0; justify-content: flex-start; }

  .cycle { max-width: 420px; margin-inline: auto; }
  .about-figure { position: static; max-width: 420px; }
  .index li { grid-template-columns: 1fr auto; gap: 12px 20px; }
  .index-year { grid-column: 1 / -1; }
  .channels a { grid-template-columns: 1fr auto; gap: 4px 16px; }
  .channels .label { grid-column: 1 / -1; }
}

@media (max-width: 720px) {
  body { font-size: 16px; }
  .wrap { width: calc(100% - 32px); }
  .sec-head { margin-bottom: 40px; }
  .menu-btn { display: block; }
  .nav {
    position: absolute;
    top: 80px;
    left: 0;
    right: 0;
    flex-direction: column;
    gap: 0;
    padding: 8px 16px 20px;
    background: var(--paper);
    border-bottom: 1px solid var(--rule);
    opacity: 0;
    pointer-events: none;
    transform: translateY(-8px);
    transition: opacity 0.3s, transform 0.4s var(--ease-out);
  }
  .nav.open { opacity: 1; pointer-events: auto; transform: none; }
  .nav a { padding: 14px 0; font-size: 1.05rem; border-bottom: 1px solid var(--rule); }
  .nav a::after { display: none; }
  .site-header.menu-open { background: var(--paper); border-bottom-color: var(--rule); }
  .brand { font-size: 1.12rem; }
  .actions { gap: 24px; }
  .focus ul { grid-template-columns: 1fr; }
  .steps li { grid-template-columns: 40px 1fr; }
  .cycle-note { font-size: 1.15rem; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .js [data-reveal], .js [data-split] .wi { opacity: 1; transform: none; }
  .js .media .frame { clip-path: none; }
  .js .media img { transform: none; }
  .js .sec-head::before { transform: none; }
  .js .hero h1 em .wi { text-decoration-color: var(--gold); }
  .js .cycle .arc-line { stroke-dashoffset: 0; }
  .js .cycle .arc-head { opacity: 1; }
}