:root {
  --bg: #f4f1ea;
  --bg-strong: #efe9de;
  --panel: rgba(251, 248, 242, 0.92);
  --panel-strong: #fbf8f2;
  --ink: #121417;
  --ink-soft: #1f252b;
  --muted: #5f615b;
  --line: rgba(18, 20, 23, 0.14);
  --line-strong: rgba(18, 20, 23, 0.24);
  --teal: #0f8b8d;
  --teal-soft: rgba(15, 139, 141, 0.12);
  --copper: #c26a3d;
  --copper-soft: rgba(194, 106, 61, 0.14);
  --graphite: #1e2328;
  --graphite-soft: rgba(30, 35, 40, 0.1);
  --shadow-soft: 0 12px 36px rgba(18, 20, 23, 0.08);
  --shadow-strong: 0 20px 56px rgba(18, 20, 23, 0.12);
  --radius-s: 10px;
  --radius-m: 18px;
  --radius-l: 28px;
  --shell: 1180px;
  --serif: "Iowan Old Style", "Palatino Linotype", "Book Antiqua", Georgia, serif;
  --sans: "Avenir Next", "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  --mono: "SFMono-Regular", "Consolas", "Liberation Mono", monospace;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  font-family: var(--sans);
  background: var(--bg);
  color: var(--ink);
  line-height: 1.6;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(18, 20, 23, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(18, 20, 23, 0.04) 1px, transparent 1px);
  background-size: 40px 40px;
  opacity: 0.6;
}

a {
  color: inherit;
  text-decoration: none;
}

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

button,
input,
textarea,
select {
  font: inherit;
}

button {
  cursor: pointer;
}

.shell {
  width: min(calc(100% - 2rem), var(--shell));
  margin: 0 auto;
}

.page {
  position: relative;
  overflow-x: hidden;
}

.page-glow {
  position: fixed;
  width: 34rem;
  height: 34rem;
  border-radius: 999px;
  filter: blur(72px);
  opacity: 0.2;
  pointer-events: none;
  z-index: -2;
}

.page-glow--teal {
  top: -10rem;
  left: -8rem;
  background: rgba(15, 139, 141, 0.6);
}

.page-glow--copper {
  right: -10rem;
  top: 30rem;
  background: rgba(194, 106, 61, 0.48);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  padding: 1rem 0;
  transition: padding 180ms ease, background-color 180ms ease, backdrop-filter 180ms ease, box-shadow 180ms ease;
}

.site-header.is-scrolled {
  padding: 0.65rem 0;
  background: rgba(247, 244, 237, 0.72);
  backdrop-filter: blur(18px);
  box-shadow: 0 1px 0 rgba(18, 20, 23, 0.08);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.25rem;
  padding: 0.45rem 1.1rem;
  border: 1px solid rgba(18, 20, 23, 0.08);
  border-radius: 999px;
  background: rgba(251, 248, 242, 0.72);
  box-shadow: var(--shadow-soft);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.85rem;
  min-width: 0;
}

.brand__mark {
  display: inline-grid;
  place-items: center;
  width: 2.6rem;
  height: 2.6rem;
  border-radius: 50%;
  background:
    linear-gradient(135deg, rgba(15, 139, 141, 0.18), rgba(194, 106, 61, 0.18)),
    var(--ink);
  border: 1px solid rgba(251, 248, 242, 0.25);
  color: #f7f4ed;
  font-family: var(--serif);
  font-weight: 700;
  letter-spacing: 0.08em;
}

.brand__text {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.brand__text strong {
  font-size: 0.96rem;
  letter-spacing: 0.02em;
}

.brand__text small {
  color: var(--muted);
  font-size: 0.76rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 0.2rem;
}

.site-search {
  position: relative;
  flex: 1;
  max-width: 280px;
}

.site-search__input {
  width: 100%;
  padding: 0.5rem 1rem;
  border: 1px solid rgba(18, 20, 23, 0.1);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.6);
  font-size: 0.9rem;
  color: var(--ink);
  transition: border-color 160ms ease, background-color 160ms ease, box-shadow 160ms ease;
}

.site-search__input:focus {
  outline: none;
  border-color: rgba(18, 20, 23, 0.2);
  background: rgba(255, 255, 255, 0.9);
  box-shadow: 0 0 0 3px rgba(15, 139, 141, 0.1);
}

.site-search__input::placeholder {
  color: var(--muted);
}

.site-search__results {
  position: absolute;
  top: calc(100% + 0.5rem);
  left: 0;
  right: 0;
  max-height: 320px;
  overflow-y: auto;
  border: 1px solid rgba(18, 20, 23, 0.1);
  border-radius: 1rem;
  background: rgba(251, 248, 242, 0.96);
  backdrop-filter: blur(12px);
  box-shadow: var(--shadow-strong);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: opacity 180ms ease, visibility 180ms ease, transform 180ms ease;
  z-index: 100;
}

.site-search__results.is-open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.site-search__result {
  display: block;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid rgba(18, 20, 23, 0.06);
  text-decoration: none;
  transition: background-color 120ms ease;
}

.site-search__result:last-child {
  border-bottom: none;
}

.site-search__result:hover {
  background: rgba(18, 20, 23, 0.04);
}

.site-search__result-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 0.2rem;
}

.site-search__result-type {
  display: inline-block;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
  margin-bottom: 0.25rem;
}

.site-search__result-summary {
  font-size: 0.85rem;
  color: var(--muted);
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.site-search__empty {
  padding: 1rem;
  text-align: center;
  color: var(--muted);
  font-size: 0.9rem;
}

.site-nav__link {
  position: relative;
  padding: 0.7rem 0.9rem;
  border-radius: 999px;
  color: var(--muted);
  font-size: 0.95rem;
  transition: color 160ms ease, background-color 160ms ease;
}

.site-nav__link:hover,
.site-nav__link.is-active {
  color: var(--ink);
  background: rgba(18, 20, 23, 0.06);
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 2.9rem;
  padding: 0.65rem 1.1rem;
  border-radius: 999px;
  border: 1px solid transparent;
  font-size: 0.95rem;
  font-weight: 600;
  transition: transform 160ms ease, box-shadow 160ms ease, border-color 160ms ease, background-color 160ms ease, color 160ms ease;
}

.button:hover {
  transform: translateY(-1px);
}

.button--primary {
  background: var(--ink);
  color: #f8f5ef;
  box-shadow: 0 12px 28px rgba(18, 20, 23, 0.2);
}

.button--primary:hover {
  box-shadow: 0 16px 34px rgba(18, 20, 23, 0.24);
}

.button--ghost {
  background: rgba(251, 248, 242, 0.72);
  border-color: var(--line-strong);
  color: var(--ink);
}

.button--compact {
  min-height: 2.25rem;
  padding: 0.45rem 0.82rem;
  font-size: 0.83rem;
}

.nav-toggle {
  display: none;
  width: 2.8rem;
  height: 2.8rem;
  padding: 0;
  border: 0;
  border-radius: 999px;
  background: rgba(18, 20, 23, 0.06);
}

.nav-toggle span {
  display: block;
  width: 1.1rem;
  height: 2px;
  margin: 0.22rem auto;
  background: var(--ink);
  border-radius: 999px;
  transition: transform 160ms ease, opacity 160ms ease;
}

.nav-toggle.is-open span:first-child {
  transform: translateY(4px) rotate(45deg);
}

.nav-toggle.is-open span:last-child {
  transform: translateY(-4px) rotate(-45deg);
}

.announcement {
  display: flex;
  align-items: center;
  gap: 0.95rem;
  margin-top: 1.6rem;
  padding: 0.85rem 1.05rem;
  border: 1px solid rgba(15, 139, 141, 0.16);
  border-radius: var(--radius-l);
  background: rgba(15, 139, 141, 0.08);
  box-shadow: var(--shadow-soft);
}

.announcement__label {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.28rem 0.62rem;
  border-radius: 999px;
  background: rgba(18, 20, 23, 0.1);
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.announcement__text {
  color: var(--ink-soft);
}

.site-main {
  padding-bottom: 5rem;
}

.hero {
  padding: 3.2rem 0 1.8rem;
}

.hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(300px, 0.95fr);
  gap: 2rem;
  align-items: center;
}

.hero__eyebrow,
.page-intro__eyebrow,
.detail-hero__eyebrow,
.site-footer__eyebrow,
.collaboration-panel__eyebrow,
.section-heading__eyebrow {
  margin: 0 0 0.85rem;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.hero__title,
.page-intro__title,
.detail-hero__title {
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(2.9rem, 5vw, 4.8rem);
  line-height: 0.95;
  letter-spacing: -0.03em;
}

.hero__summary,
.page-intro__summary,
.detail-hero__summary {
  max-width: 42rem;
  margin: 1.35rem 0 0;
  font-size: clamp(1rem, 1.65vw, 1.2rem);
  color: var(--ink-soft);
}

.hero__actions,
.page-intro__actions,
.detail-hero__actions,
.card-actions,
.collaboration-panel__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  margin-top: 1.35rem;
}

.hero__metrics {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.95rem;
  margin-top: 1.8rem;
}

.metric-card,
.theme-card,
.project-card,
.publication-card,
.news-card,
.principle-card,
.about-card,
.team-card,
.collaboration-panel,
.detail-sidebar__panel,
.detail-prose,
.page-intro,
.hero__visual {
  border: 1px solid rgba(18, 20, 23, 0.1);
  background: var(--panel);
  box-shadow: var(--shadow-soft);
  backdrop-filter: blur(8px);
}

.metric-card {
  display: grid;
  gap: 0.28rem;
  padding: 1rem 1rem 1.05rem;
  border-radius: var(--radius-m);
}

.metric-card__value,
.metric-item__value,
.fact-item__value {
  font-family: var(--serif);
  font-size: 1.7rem;
  line-height: 1;
  letter-spacing: -0.04em;
}

.metric-card__label,
.metric-item__label,
.fact-item__label {
  color: var(--muted);
  font-size: 0.9rem;
}

.hero__visual {
  position: relative;
  min-height: 32rem;
  overflow: hidden;
  border-radius: 2rem;
  background:
    linear-gradient(145deg, rgba(251, 248, 242, 0.96), rgba(239, 233, 222, 0.82));
  display: flex;
  align-items: center;
  padding: 2rem;
  gap: 0.75rem;
}

.hero-visual__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(18, 20, 23, 0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(18, 20, 23, 0.02) 1px, transparent 1px);
  background-size: 3rem 3rem;
  mask-image: radial-gradient(circle at center, rgba(0, 0, 0, 0.7), transparent 85%);
  opacity: 0.8;
  pointer-events: none;
}

/* === Research System Graph: Semantic Nodes & Edges === */
.hero-system-graph {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

/* Hero grid background */
.hero-grid-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

/* Minimal accent dots */
.hero-accent {
  position: absolute;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--muted);
  opacity: 0.35;
}

.hero-accent--tl {
  top: 18%;
  left: 12%;
}

.hero-accent--br {
  bottom: 22%;
  right: 15%;
}

/* === Hover State Interactions === */
.hero__visual:has([data-note]:hover) .hero-node {
  opacity: 0.25;
}

.hero__visual:has([data-note="project"]:hover) .hero-node:nth-child(1) {
  opacity: 0.8;
  background: var(--ink);
}

.hero__visual:has([data-note="blog"]:hover) .hero-node:nth-child(2) {
  opacity: 0.8;
  background: var(--ink);
}

.hero__visual:has([data-note="publication"]:hover) .hero-node:nth-child(3) {
  opacity: 0.8;
  background: var(--ink);
}

/* === Animations === */
@keyframes pulse-subtle {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.08); }
}

@keyframes flow-gradient {
  0% { background-position: 0% center; }
  50% { background-position: 100% center; }
  100% { background-position: 0% center; }
}

@keyframes float-gentle {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-4px); }
}

/* === Table of Contents === */
.toc-nav {
  padding: 1.25rem;
  background: rgba(251, 248, 242, 0.8);
  border: 1px solid rgba(18, 20, 23, 0.08);
  border-radius: 1rem;
}

.toc-nav__eyebrow {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 0.75rem;
}

.toc-nav__list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.toc-nav__list li {
  position: relative;
}

.toc-nav__list a {
  display: block;
  padding: 0.35rem 0.5rem;
  font-size: 0.85rem;
  color: var(--muted);
  text-decoration: none;
  border-radius: 0.35rem;
  transition: color 0.2s ease, background 0.2s ease;
  border-left: 2px solid transparent;
}

.toc-nav__list a:hover {
  color: var(--ink);
  background: rgba(18, 20, 23, 0.04);
}

.toc-nav__list a.is-active {
  color: var(--ink);
  background: rgba(18, 20, 23, 0.06);
  border-left-color: var(--teal);
  font-weight: 500;
}

/* === Hero Timeline === */
.hero-timeline {
  position: relative;
  padding: 1.5rem 0;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.hero-timeline__line {
  position: absolute;
  left: 6px;
  top: 2rem;
  bottom: 2rem;
  width: 2px;
  background: linear-gradient(180deg, var(--teal), var(--copper));
  opacity: 0.3;
}

.hero-timeline__item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  border-radius: 0.75rem;
  background: rgba(251, 248, 242, 0.8);
  border: 1px solid rgba(18, 20, 23, 0.08);
  text-decoration: none;
  color: inherit;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
  position: relative;
}

.hero-timeline__item:hover {
  transform: translateX(4px);
  background: rgba(251, 248, 242, 0.95);
  box-shadow: var(--shadow-soft);
}

.hero-timeline__dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--muted);
  margin-top: 0.35rem;
  flex-shrink: 0;
  position: relative;
  z-index: 1;
}

.hero-timeline__item--blog .hero-timeline__dot {
  background: var(--copper);
}

.hero-timeline__item--blog .hero-timeline__label {
  color: var(--copper);
}

.hero-timeline__item--publication .hero-timeline__dot,
.hero-timeline__item--publication .hero-timeline__dot {
  background: #2d7d46;
}

.hero-timeline__item--publication .hero-timeline__label,
.hero-timeline__item--publication .hero-timeline__label {
  color: #2d7d46;
}

.hero-timeline__item--award .hero-timeline__dot {
  background: linear-gradient(135deg, #c9a227, #e8c547);
  box-shadow: 0 0 0 2px rgba(201, 162, 39, 0.2);
}

.hero-timeline__item--award .hero-timeline__label {
  color: #c9a227;
}

.hero-timeline__item--project .hero-timeline__dot {
  background: #2563eb;
}

.hero-timeline__item--project .hero-timeline__label {
  color: #2563eb;
}

.hero-timeline__content {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  min-width: 0;
}

.hero-timeline__label {
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}

.hero-timeline__date {
  font-size: 0.7rem;
  color: var(--muted);
  font-weight: 500;
}

.hero-timeline__title {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--ink);
  line-height: 1.3;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* === Relationship State Styling === */
.hero__visual.is-relationship-active .hero-node {
  opacity: 0.6;
}

.hero-cards {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  justify-content: center;
  width: min(18rem, 55%);
  height: 100%;
}

.hero-note {
  flex: 1;
  min-height: 0;
  padding: 1rem 1.25rem;
  border: 1px solid rgba(18, 20, 23, 0.12);
  border-radius: 1rem;
  background: rgba(251, 248, 242, 0.96);
  box-shadow: var(--shadow-soft);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  pointer-events: auto;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-height: 5rem;
}

.hero-note:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(18, 20, 23, 0.1);
}

.hero-note span {
  display: block;
  margin-bottom: 0.35rem;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.hero-note__type {
  color: var(--teal);
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.hero-note strong {
  display: block;
  font-family: var(--serif);
  font-size: 1.1rem;
  line-height: 1.2;
  color: var(--ink);
}

/* Grouped nodes on the left, aligned with cards */
.hero-nodes {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  justify-content: center;
  height: 100%;
}

.hero-node {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--muted);
  opacity: 0.15;
  flex-shrink: 0;
}

.section {
  padding: 2.1rem 0;
}

.section--spotlight,
.section--contrast {
  padding-top: 3.2rem;
  padding-bottom: 3.2rem;
}

.section--contrast {
  background: linear-gradient(180deg, rgba(18, 20, 23, 0.95), rgba(28, 33, 39, 0.97));
  color: #f7f4ed;
  margin-top: 1.2rem;
}

.section--contrast .section-heading__eyebrow,
.section--contrast .section-heading__description,
.section--contrast .collaboration-panel__eyebrow,
.section--contrast .collaboration-panel p,
.section--contrast .principle-card p,
.section--contrast .principle-card h3 {
  color: inherit;
}

.section--contrast .section-heading__description {
  opacity: 0.76;
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr) auto;
  gap: 1rem 1.6rem;
  align-items: end;
  margin-bottom: 1.5rem;
}

.section-heading__title {
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(2rem, 3vw, 2.8rem);
  line-height: 1.02;
  letter-spacing: -0.03em;
}

.section-heading__description {
  margin: 0;
  color: var(--muted);
}

.section-heading__action {
  justify-self: end;
  color: var(--ink);
  font-weight: 700;
  white-space: nowrap;
}

.section--contrast .section-heading__action {
  color: #f7f4ed;
}

.spotlight-grid,
.card-grid,
.theme-grid,
.principle-grid,
.about-grid,
.team-grid {
  display: grid;
  gap: 1.1rem;
}

.spotlight-grid {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.card-grid--projects {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.theme-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.principle-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.about-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.timeline-stack,
.news-stack {
  display: grid;
  gap: 1rem;
}

.news-stack {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.timeline-group {
  display: grid;
  grid-template-columns: 5rem minmax(0, 1fr);
  gap: 1.25rem;
  align-items: start;
}

.timeline-group__year {
  position: sticky;
  top: 6rem;
  font-family: var(--serif);
  font-size: 2rem;
  line-height: 1;
}

.timeline-group__items {
  display: grid;
  gap: 1rem;
}

.theme-card,
.principle-card,
.about-card,
.collaboration-panel,
.project-card,
.publication-card,
.news-card,
.team-card {
  border-radius: var(--radius-l);
}

.theme-card,
.principle-card,
.about-card {
  padding: 1.35rem;
}

.theme-card__eyebrow {
  margin-bottom: 0.8rem;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.74rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.theme-card h3,
.principle-card h3,
.about-card h3,
.collaboration-panel h3 {
  margin: 0;
  font-family: var(--serif);
  font-size: 1.45rem;
  line-height: 1.1;
}

.theme-card p,
.principle-card p,
.about-card p,
.collaboration-panel p {
  margin: 0.85rem 0 0;
}

.project-card,
.publication-card,
.news-card,
.team-card {
  position: relative;
  display: grid;
  gap: 0.95rem;
  padding: 1.35rem;
}

.project-card::before,
.publication-card::before,
.news-card::before,
.team-card::before,
.detail-sidebar__panel::before,
.detail-prose::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  pointer-events: none;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.42);
}

.project-card {
  overflow: hidden;
}

/* Project icon badge */
.project-card__icon {
  width: 3rem;
  height: 3rem;
  border-radius: 0.9rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 0.75rem;
  background: rgba(15, 139, 141, 0.12);
  flex-shrink: 0;
}

.project-card__icon svg {
  width: 1.6rem;
  height: 1.6rem;
  color: var(--teal);
}

.project-card__icon--text {
  font-family: var(--serif);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--teal);
  letter-spacing: 0.04em;
}

/* 当卡片包含媒体时，将布局改为两列：内容在左，图片在右 */
.project-card--has-media {
  grid-template-columns: 1fr minmax(180px, 28%);
  align-items: center;
  gap: 1rem;
}

.project-card__media {
  display: block;
  width: 100%;
}

.project-card__media img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-radius: 0.9rem;
  border: 1px solid rgba(18, 20, 23, 0.06);
  background: #fff;
  box-shadow: var(--shadow-soft);
}

.project-card::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 6px;
  background: var(--teal);
}

.project-card--copper::after {
  background: var(--copper);
}

.project-card--graphite::after {
  background: var(--graphite);
}

.publication-card {
  overflow: hidden;
}

.publication-card::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 4px;
  background: var(--teal);
}

.publication-card--award::after {
  background: linear-gradient(90deg, #c9a227, #e8c547);
}

.project-card--compact,
.publication-card--compact,
.news-card--compact {
  min-height: 100%;
}

.card-kicker,
.publication-card__meta,
.news-card__meta,
.detail-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.76rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.project-card__title,
.publication-card__title,
.news-card__title,
.team-card h3 {
  margin: 0;
  font-family: var(--serif);
  font-size: 1.55rem;
  line-height: 1.06;
}

.project-card__subtitle,
.publication-card__authors,
.team-card__role {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.project-card__summary,
.publication-card__summary,
.news-card__summary,
.team-card p {
  margin: 0;
  color: var(--ink-soft);
}

.publication-card__award {
  color: var(--copper);
  font-weight: 700;
}

.chip-row,
.detail-hero__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}

.chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2rem;
  padding: 0.35rem 0.72rem;
  min-width: 3.6rem;
  white-space: nowrap;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: rgba(251, 248, 242, 0.9);
  font-size: 0.8rem;
  color: var(--ink-soft);
}

.chip--filter {
  background: rgba(18, 20, 23, 0.04);
}

.chip--filter.is-active {
  border-color: rgba(15, 139, 141, 0.26);
  background: rgba(15, 139, 141, 0.14);
  color: var(--ink);
}

.metric-strip,
.fact-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.8rem;
}

.metric-item,
.fact-item {
  display: grid;
  gap: 0.2rem;
  padding: 0.7rem 0.8rem;
  border: 1px solid rgba(18, 20, 23, 0.08);
  border-radius: 1rem;
  background: rgba(18, 20, 23, 0.03);
}

.page-intro {
  margin: 2.1rem auto 0;
  padding: 2.2rem;
  border-radius: 2rem;
}

.page-intro--tight {
  max-width: 42rem;
}

.page-intro__description {
  max-width: 44rem;
  margin: 1rem 0 0;
  color: var(--muted);
}

.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-bottom: 1.2rem;
}

.timeline-group + .timeline-group,
.team-section + .team-section {
  margin-top: 2rem;
}

.team-section__heading p {
  margin: 0 0 1rem;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.team-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.team-card {
  grid-template-columns: auto minmax(0, 1fr);
  align-items: start;
  gap: 1rem;
}

.team-card__avatar {
  display: inline-grid;
  place-items: center;
  width: 4rem;
  height: 4rem;
  border-radius: 1.15rem;
  background: linear-gradient(135deg, rgba(15, 139, 141, 0.16), rgba(194, 106, 61, 0.16));
  font-family: var(--serif);
  font-size: 1.5rem;
  font-weight: 700;
  flex-shrink: 0;
}

/* 有照片时：等比缩放不裁剪，hover 上浮放大 */
.team-card__avatar--photo {
  background: none;
  overflow: visible;
  padding: 0;
  transition: transform 0.22s ease, box-shadow 0.22s ease;
}

.team-card__avatar--photo:hover {
  transform: translateY(-3px) scale(1.08);
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.18);
}

.team-card__avatar--photo img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center center;
  display: block;
  border-radius: inherit;
}

.team-card__body {
  display: grid;
  gap: 0.7rem;
}

.detail-hero {
  padding: 3rem 0 1.1rem;
}

.detail-hero__grid,
.detail-layout,
.section-split {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(280px, 0.75fr);
  gap: 1.25rem;
}

.detail-hero__grid {
  align-items: end;
}

.detail-section {
  padding-top: 1rem;
}

.detail-prose,
.detail-sidebar__panel,
.collaboration-panel {
  padding: 1.35rem;
}

.detail-prose {
  border-radius: 2rem;
}

.detail-sidebar {
  display: grid;
  gap: 1rem;
  height: fit-content;
  max-height: calc(100vh - 6.5rem);
  overflow-y: auto;
  scrollbar-width: none;
}

/* JS-sticky 模式：侧边栏被固定在 header 下方 */
.detail-sidebar--sticky {
  position: fixed;
  top: 5.5rem;
  width: inherit;
  max-height: calc(100vh - 6.5rem);
}

/* grid 子项的宽度在 sticky 模式下需要固定 */
.detail-layout {
  align-items: start;
}

.detail-sidebar__panel {
  border-radius: 1.6rem;
}

.detail-sidebar__eyebrow,
.prose__heading {
  margin: 0 0 0.8rem;
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}

.detail-sidebar__stack {
  display: grid;
  gap: 0.8rem;
}

.detail-sidebar__stack .project-card,
.detail-sidebar__stack .publication-card,
.detail-sidebar__stack .news-card {
  padding: 1rem;
}

.detail-sidebar__stack .project-card__title,
.detail-sidebar__stack .publication-card__title,
.detail-sidebar__stack .news-card__title {
  font-size: 1.15rem;
}

.prose-block + .prose-block {
  margin-top: 1.4rem;
}

/* === Markdown body (rendered from .md files) === */
.md-body {
  line-height: 1.75;
  color: var(--ink);
}

.md-body h1,
.md-body h2,
.md-body h3,
.md-body h4 {
  font-family: var(--serif);
  margin: 2rem 0 0.65rem;
  line-height: 1.25;
  scroll-margin-top: 6rem;
}

.md-body h1 { font-size: 1.7rem; }
.md-body h2 { font-size: 1.3rem; border-bottom: 1px solid rgba(18,20,23,0.09); padding-bottom: 0.35rem; }
.md-body h3 { font-size: 1.08rem; }

.md-body p {
  margin: 0.8rem 0;
}

.md-body a {
  color: var(--teal);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.md-body ul,
.md-body ol {
  padding-left: 1.5rem;
  margin: 0.8rem 0;
}

.md-body li {
  margin: 0.35rem 0;
}

.md-body strong {
  font-weight: 650;
}

.md-body blockquote {
  border-left: 3px solid var(--teal);
  margin: 1.2rem 0;
  padding: 0.6rem 1rem;
  background: rgba(15, 139, 141, 0.06);
  border-radius: 0 0.5rem 0.5rem 0;
  color: var(--muted);
  font-style: italic;
}

.md-body code {
  font-family: var(--mono);
  font-size: 0.82em;
  background: rgba(18, 20, 23, 0.07);
  padding: 0.15em 0.4em;
  border-radius: 0.3em;
}

.md-body pre {
  background: rgba(18, 20, 23, 0.05);
  border: 1px solid rgba(18, 20, 23, 0.1);
  border-radius: 0.75rem;
  padding: 1rem 1.2rem;
  overflow-x: auto;
  margin: 1.2rem 0;
}

.md-body pre code {
  background: none;
  padding: 0;
  font-size: 0.83rem;
  line-height: 1.6;
}

.md-body table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
  margin: 1.2rem 0;
  border-radius: 0.6rem;
  overflow: hidden;
  border: 1px solid rgba(18, 20, 23, 0.12);
}

.md-body th {
  background: rgba(18, 20, 23, 0.05);
  font-weight: 600;
  text-align: left;
  padding: 0.5rem 0.8rem;
  border-bottom: 1px solid rgba(18, 20, 23, 0.12);
}

.md-body td {
  padding: 0.45rem 0.8rem;
  border-bottom: 1px solid rgba(18, 20, 23, 0.06);
}

.md-body tr:last-child td {
  border-bottom: none;
}

.md-body img {
  max-width: 100%;
  height: auto;
  border-radius: 0.75rem;
  margin: 1rem 0;
  display: block;
}

.md-body hr {
  border: none;
  border-top: 1px solid rgba(18, 20, 23, 0.1);
  margin: 2rem 0;
}



.detail-prose p,
.detail-prose ul,
.detail-prose blockquote {
  margin: 0;
}

.detail-prose ul {
  padding-left: 1.2rem;
}

.detail-prose li + li {
  margin-top: 0.55rem;
}

.detail-prose blockquote {
  padding-left: 1rem;
  border-left: 3px solid rgba(15, 139, 141, 0.34);
  font-family: var(--serif);
  font-size: 1.2rem;
  line-height: 1.4;
}

.prose-figure {
  margin: 0;
}

.prose-figure img {
  width: 100%;
  border: 1px solid rgba(18, 20, 23, 0.08);
  border-radius: 1.2rem;
  background: #fff;
  box-shadow: var(--shadow-soft);
}

.prose-figure figcaption {
  margin-top: 0.7rem;
  color: var(--muted);
  font-size: 0.92rem;
}

.muted {
  color: var(--muted);
}

.site-footer {
  padding: 0 0 2.5rem;
}

.site-footer__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 1.4rem;
  padding: 2rem;
  border: 1px solid rgba(18, 20, 23, 0.1);
  border-radius: 2rem;
  background: rgba(18, 20, 23, 0.94);
  color: #f7f4ed;
  box-shadow: var(--shadow-strong);
}

.site-footer__intro h2 {
  margin: 0;
  font-family: var(--serif);
  font-size: 2rem;
}

.site-footer__intro p,
.site-footer__meta p {
  margin: 0.7rem 0 0;
  max-width: 36rem;
  color: rgba(247, 244, 237, 0.76);
}

.site-footer__links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem 1.2rem;
  margin-top: 0.9rem;
}

.site-footer__meta:empty {
  display: none;
}

.site-footer__links a {
  color: #f7f4ed;
}

.project-card:hover,
.publication-card:hover,
.news-card:hover,
.team-card:hover,
.theme-card:hover,
.principle-card:hover,
.about-card:hover,
.collaboration-panel:hover,
.detail-sidebar__panel:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-strong);
  border-color: rgba(18, 20, 23, 0.16);
}

.project-card,
.publication-card,
.news-card,
.team-card,
.theme-card,
.principle-card,
.about-card,
.collaboration-panel,
.detail-sidebar__panel {
  transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease;
}

.js [data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 360ms ease, transform 360ms ease;
  transition-delay: var(--reveal-delay, 0ms);
}

.js [data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

[data-filter-item].is-hidden {
  display: none;
}

@media (max-width: 1080px) {
  .section-heading,
  .detail-layout,
  .section-split,
  .detail-hero__grid,
  .hero__grid,
  .spotlight-grid {
    grid-template-columns: 1fr;
  }

  .card-grid--projects,
  .theme-grid,
  .principle-grid,
  .about-grid,
  .news-stack {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .team-grid {
    grid-template-columns: 1fr;
  }

  .section-heading__action {
    justify-self: start;
  }

  /* 在较窄屏幕上，移除右侧媒体列，使图片位于内容下方 */
  .project-card--has-media {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 820px) {
  .site-header__inner {
    padding: 0.65rem 0.8rem;
    border-radius: 1.4rem;
  }

  .nav-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  .site-nav {
    position: absolute;
    top: calc(100% + 0.6rem);
    left: 0;
    right: 0;
    display: none;
    flex-direction: column;
    align-items: stretch;
    padding: 0.8rem;
    border: 1px solid rgba(18, 20, 23, 0.1);
    border-radius: 1.4rem;
    background: rgba(251, 248, 242, 0.96);
    box-shadow: var(--shadow-strong);
  }

  .site-nav.is-open {
    display: flex;
  }

  .site-nav__link,
  .site-nav__cta {
    width: 100%;
    justify-content: center;
  }

  .hero {
    padding-top: 2rem;
  }

  .hero__visual {
    min-height: 25rem;
  }

  .hero-note {
    width: auto;
    max-width: 15rem;
  }

  .hero-note--publication {
    left: 6%;
    bottom: 9%;
  }

  .hero-note--news {
    right: 6%;
    bottom: 6%;
  }

  .page-intro,
  .site-footer__inner {
    padding: 1.5rem;
  }

  .site-footer__inner {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .shell {
    width: min(calc(100% - 1.2rem), var(--shell));
  }

  .brand__text small {
    display: none;
  }

  .announcement {
    flex-direction: column;
    align-items: flex-start;
  }

  .hero__metrics,
  .metric-strip,
  .fact-list,
  .card-grid--projects,
  .theme-grid,
  .principle-grid,
  .about-grid,
  .news-stack {
    grid-template-columns: 1fr;
  }

  .timeline-group {
    grid-template-columns: 1fr;
  }

  .timeline-group__year {
    position: static;
  }

  .hero__title,
  .page-intro__title,
  .detail-hero__title {
    font-size: clamp(2.5rem, 11vw, 3.2rem);
  }

  .hero-note {
    position: static;
    max-width: none;
    width: auto;
    margin: 1rem;
  }

  .hero__visual {
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
  }

  .team-card {
    grid-template-columns: 1fr;
  }
}