:root {
  --muse-navy: #102040;
  --muse-navy-deep: #0a1830;
  --muse-orange: #E65100;
  --muse-orange-deep: #BF360C;
  --muse-orange-soft: #fff3e0;
  --muse-cyan: #107070;
  --muse-cyan-deep: #0a5858;
  --muse-cyan-soft: #e8f0f0;
  --muse-purple: #7B1FA2;
  --muse-purple-soft: #f3e5f5;
  --muse-blue: #1565C0;
  --muse-blue-soft: #e3f2fd;
  --muse-rose: #C62828;
  --muse-rose-soft: #fce4ec;
  --muse-green: #2E7D32;
  --muse-green-soft: #e8f5e9;
  --muse-slate: #455a64;
  --muse-slate-soft: #eceff1;
  --surface: #ffffff;
  --surface-warm: #fbfaf7;
  --bg: #f7f7f3;
  --fg: #0f1a2e;
  --muted: #6c757d;
  --line: #dde3ea;
  --line-strong: #cfd6df;
  --radius: 12px;
  --shadow: 0 18px 45px rgba(16, 32, 64, 0.08);
  --shadow-soft: 0 8px 24px rgba(16, 32, 64, 0.06);
  --serif: Charter, "Iowan Old Style", "Source Serif Pro", Georgia, serif;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

html {
  scroll-behavior: smooth;
}

body.page-body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--serif);
  font-size: 17px;
  line-height: 1.68;
}

.page-main {
  padding-top: 110px;
  padding-bottom: 48px;
}

.site-navbar {
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 1030;
  background: rgba(255, 255, 255, 0.95) !important;
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(10px);
}

.navbar-brand .muse-logo {
  height: 44px;
  width: auto;
}

.site-navbar .nav-link {
  color: var(--fg) !important;
  font-family: var(--sans);
  font-size: 16px;
  font-weight: 500;
  border-radius: 6px;
  padding: 10px 16px !important;
}

.site-navbar .nav-link:hover,
.site-navbar .nav-link:focus {
  color: var(--muse-navy) !important;
  background: #eef2f6;
}

.site-navbar .nav-link.active {
  color: #ffffff !important;
  background: var(--muse-orange);
}

.site-navbar .navbar-toggler {
  border-color: var(--line);
}

.hero-card,
.content-card,
.news-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.hero-card {
  padding: clamp(28px, 5vw, 56px);
  background: transparent;
  border: none;
  box-shadow: none;
  position: relative;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(280px, 0.8fr);
  gap: clamp(28px, 5vw, 56px);
  align-items: center;
}

.hero-card .eyebrow,
.section-kicker {
  color: var(--muse-orange);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 12px;
  font-weight: 700;
  font-family: var(--sans);
  margin-bottom: 12px;
}

.hero-card h1,
.hero-card h2,
.page-title {
  color: var(--muse-navy);
  letter-spacing: -0.01em;
  font-family: var(--sans);
  font-weight: 750;
  line-height: 1.12;
}

.hero-card h1 {
  max-width: 22ch;
  font-size: clamp(32px, 4.5vw, 56px);
}

.hero-lede {
  max-width: 66ch;
  font-size: 19px;
  color: #243047;
}

.hero-meta-panel {
  background: rgba(255, 255, 255, 0.78);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft);
  padding: 24px;
}

.hero-meta-panel dl {
  margin: 0;
}

.hero-meta-panel dt {
  color: var(--muted);
  font-family: var(--sans);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-top: 16px;
}

.hero-meta-panel dt:first-child {
  margin-top: 0;
}

.hero-meta-panel dd {
  color: var(--muse-navy);
  font-family: var(--sans);
  font-weight: 650;
  margin: 4px 0 0;
}

.section-title {
  color: var(--muse-navy) !important;
  font-family: var(--sans);
  font-weight: 700;
  letter-spacing: -0.01em;
}

.page-intro {
  color: var(--muted);
  margin-bottom: 28px;
  max-width: 70ch;
}

.content-card {
  padding: 28px;
}

.section-shell {
  margin-top: 56px;
}

.section-head {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  align-items: end;
  margin-bottom: 20px;
}

.section-head p {
  color: var(--muted);
  max-width: 65ch;
  margin: 0;
}

.research-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 14px;
}

.research-tile {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px;
  min-height: 160px;
  box-shadow: var(--shadow-soft);
}

.research-tile h3 {
  color: var(--muse-navy);
  font-family: var(--sans);
  font-size: 18px;
  margin-bottom: 8px;
}

.research-tile p {
  color: var(--muted);
  font-size: 15px;
  margin: 0;
}

.rd-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 12px;
}

.rd-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft);
  cursor: pointer;
  overflow: hidden;
  transition: box-shadow 0.25s, border-color 0.25s, transform 0.25s;
}

.rd-card:hover {
  border-color: var(--muse-orange);
  box-shadow: var(--shadow);
  transform: translateY(-3px);
}

.rd-card.open {
  border-color: var(--muse-orange);
  box-shadow: 0 0 0 2px var(--muse-orange);
}

.rd-card__front {
  padding: 16px;
}

.rd-card__front h3 {
  color: var(--muse-navy);
  font-family: var(--sans);
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 6px;
}

.rd-card__front p {
  color: var(--muted);
  font-size: 13px;
  margin: 0 0 10px;
  line-height: 1.45;
}

.rd-card__count {
  background: var(--muse-orange-soft);
  border-radius: 999px;
  color: var(--muse-orange-deep);
  font-family: var(--sans);
  font-size: 12px;
  font-weight: 700;
  padding: 4px 10px;
}

.rd-card__expanded {
  display: none;
}

.rd-detail {
  background: var(--surface);
  border: 2px solid var(--muse-orange);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 24px 28px;
  margin-top: 16px;
  animation: rd-detail-in 0.3s ease;
  position: relative;
}
@keyframes rd-detail-in {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 1; transform: translateY(0); }
}

.rd-detail__close {
  position: absolute;
  top: 14px;
  right: 14px;
  background: none;
  border: 1px solid var(--line);
  border-radius: 50%;
  width: 30px;
  height: 30px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--muted);
  font-size: 18px;
  line-height: 1;
  transition: all 0.15s;
}
.rd-detail__close:hover {
  background: var(--bg);
  color: var(--fg);
  border-color: var(--line-strong);
}

.rd-detail__header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 16px;
}
.rd-detail__header h3 {
  font-family: var(--sans);
  font-size: 20px;
  font-weight: 700;
  color: var(--muse-navy);
  margin: 0;
}

.rd-detail__body {
  padding-top: 4px;
}

.rd-detail__body .rd-card__people {
  display: flex;
  gap: 10px;
  margin-bottom: 16px;
}

.rd-detail__body .rd-card__people img {
  border: 2px solid var(--line);
  border-radius: 50%;
  height: 46px;
  object-fit: cover;
  width: 46px;
  transition: border-color 0.2s;
}
.rd-detail__body .rd-card__people img:hover { border-color: var(--muse-orange); }

.rd-detail__body .rd-card__papers {
  list-style: none;
  margin: 0 0 14px;
  padding: 0;
}

.rd-detail__body .rd-card__papers li {
  border-bottom: 1px solid var(--line);
  color: var(--fg);
  font-family: var(--sans);
  font-size: 14px;
  line-height: 1.55;
  padding: 8px 0;
}
.rd-detail__body .rd-card__papers li:last-child { border-bottom: none; }

.rd-detail__body .rd-card__papers li a {
  color: var(--fg);
  text-decoration: none;
}
.rd-detail__body .rd-card__papers li a:hover { color: var(--muse-orange); }

.rd-detail__body .rd-card__link {
  color: var(--muse-orange);
  font-family: var(--sans);
  font-size: 14px;
  font-weight: 650;
  text-decoration: none;
}
.rd-detail__body .rd-card__link:hover {
  color: var(--muse-orange-deep);
  text-decoration: underline;
}

@media (max-width: 991px) {
  .rd-grid { grid-template-columns: repeat(3, 1fr); }
  .rd-detail__body { grid-template-columns: 1fr; }
}

@media (max-width: 700px) {
  .rd-grid { grid-template-columns: 1fr; }
}

.stack-md > * + * {
  margin-top: 16px;
}

.news-scroll {
  max-height: 520px;
  overflow-y: auto;
  padding-right: 8px;
  scrollbar-width: thin;
  scrollbar-color: var(--line-strong) transparent;
}
.news-scroll::-webkit-scrollbar { width: 5px; }
.news-scroll::-webkit-scrollbar-track { background: transparent; }
.news-scroll::-webkit-scrollbar-thumb { background: var(--line-strong); border-radius: 99px; }

.news-timeline {
  position: relative;
  padding-left: 32px;
}
.news-timeline::before {
  content: '';
  position: absolute;
  left: 8px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--line-strong);
  border-radius: 2px;
}

.news-item {
  position: relative;
  padding-bottom: 22px;
}
.news-item:last-child { padding-bottom: 0; }
.news-item::before {
  content: '';
  position: absolute;
  left: -28px;
  top: 6px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--surface);
  border: 2px solid var(--muse-orange);
  z-index: 1;
}
.news-item:first-child::before {
  background: var(--muse-orange);
  box-shadow: 0 0 0 3px rgba(230, 81, 0, 0.15);
}

.news-badge {
  display: inline-block;
  font-family: var(--sans);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muse-orange-deep);
  background: none;
  padding: 0;
  margin-bottom: 4px;
}

.news-item p {
  font-size: 14px;
  line-height: 1.55;
  color: var(--fg);
  margin-bottom: 4px;
}
.news-item p:last-child { margin-bottom: 0; }

.news-photo {
  border-radius: 8px;
  border: 1px solid var(--line);
  margin-top: 8px;
  width: 100%;
  max-width: 500px;
}

.news-link {
  font-family: var(--sans);
  font-size: 12px;
  font-weight: 600;
  color: var(--muse-orange);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.news-link:hover { color: var(--muse-orange-deep); text-decoration: underline; }

.news-fade {
  display: none;
}


.card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft);
  overflow: hidden;
}

.card-header {
  background: var(--muse-navy) !important;
  color: #fff;
  border-bottom: 0;
}

.year-title {
  color: #ffffff !important;
}

.card-body {
  background: var(--surface);
  font-size: 15px;
}

.card-img-top {
  height: 230px;
  object-fit: cover;
  object-position: center;
}

.principal-investigator-card .card-img-top {
  height: 280px;
}

.page-members .card {
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}

.page-members .card:hover {
  transform: translateY(-4px);
  border-color: var(--muse-orange);
  box-shadow: var(--shadow);
}

.page-members .card-title {
  color: var(--muse-navy);
  font-family: var(--sans);
  font-weight: 700;
}

.role-heading {
  align-items: baseline;
  border-bottom: 1px solid var(--line-strong);
  display: flex;
  gap: 12px;
  justify-content: space-between;
  padding-bottom: 10px;
}

.role-count {
  color: var(--muse-orange);
  font-family: var(--sans);
  font-size: 13px;
  font-weight: 700;
}

.bio-image {
  border-radius: var(--radius);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.placeholder-panel {
  max-width: 760px;
  margin: 0 auto;
  text-align: center;
  padding: 44px 28px;
}

.placeholder-panel h2 {
  color: var(--muse-navy);
}

.publication-hero {
  margin-bottom: 28px;
}

.publication-toolbar {
  align-items: center;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft);
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: space-between;
  padding: 14px;
}

.pub-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 12px;
}

.pub-tag {
  border-radius: 999px;
  font-family: var(--sans);
  font-size: 11px;
  font-weight: 700;
  padding: 3px 10px;
  letter-spacing: 0.02em;
}

.pub-tag--oss {
  background: var(--muse-orange-soft);
  color: var(--muse-orange);
}

.pub-tag--edi {
  background: var(--muse-purple-soft);
  color: var(--muse-purple);
}

.pub-tag--msr {
  background: var(--muse-green-soft);
  color: var(--muse-green);
}

.pub-tag--productivity {
  background: var(--muse-cyan-soft);
  color: var(--muse-cyan-deep);
}

.pub-tag--ml4se {
  background: var(--muse-blue-soft);
  color: var(--muse-blue);
}

.pub-tag--tools {
  background: var(--muse-rose-soft);
  color: var(--muse-rose);
}

.pub-tag--ese {
  background: var(--muse-slate-soft);
  color: var(--muse-slate);
}

.pub-card__venue-badge {
  background: var(--muse-navy);
  border-radius: 999px;
  color: #fff;
  font-family: var(--sans);
  font-size: 11px;
  font-weight: 700;
  padding: 3px 8px;
  letter-spacing: 0.03em;
}

.pub-action--copied {
  background: var(--muse-orange) !important;
  color: #fff !important;
  border-color: var(--muse-orange) !important;
}

.pub-bibtex-btn {
  cursor: pointer;
  background: transparent;
}

.filter-chip {
  background: #eef4f4;
  border: 1px solid #cfe0e0;
  border-radius: 999px;
  color: var(--muse-orange-deep);
  display: inline-block;
  font-family: var(--sans);
  font-size: 13px;
  font-weight: 650;
  padding: 6px 12px;
}

.connection-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 14px;
}

.connection-chip {
  background: #ffffff;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  color: var(--muse-navy);
  font-family: var(--sans);
  font-size: 13px;
  font-weight: 650;
  padding: 7px 12px;
}

.pub-group {
  margin-top: 34px;
}

.pub-year {
  color: var(--muse-navy);
  font-family: var(--sans);
  font-size: 20px;
  font-weight: 800;
  margin-bottom: 14px;
}

.pub-list {
  display: grid;
  gap: 16px;
}

.pub-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-left: 4px solid var(--muse-orange);
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft);
  padding: 22px;
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s;
}
.pub-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(16, 32, 64, 0.1);
  border-color: var(--muse-orange);
}
.pub-card--open {
  border-left-width: 4px;
  border-color: var(--muse-orange);
  box-shadow: 0 12px 32px rgba(230, 81, 0, 0.12);
}

.pub-card__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 10px;
}

.pub-card__year,
.pub-card__type,
.pub-card__selected,
.pub-card__citations {
  border-radius: 999px;
  font-family: var(--sans);
  font-size: 12px;
  font-weight: 700;
  padding: 4px 9px;
}

.pub-card__year {
  background: var(--muse-navy);
  color: #fff;
}

.pub-card__type {
  background: var(--muse-orange-soft);
  color: var(--muse-orange-deep);
}

.pub-card__selected {
  background: #fff7df;
  color: #7c5a00;
}

.pub-card__citations {
  background: #f0f4f8;
  color: var(--muse-navy);
}

.pub-card h3 {
  color: var(--muse-navy);
  font-family: var(--sans);
  font-size: 20px;
  line-height: 1.25;
  margin-bottom: 8px;
}

.pub-authors {
  color: #2a3650;
  font-size: 15px;
  margin-bottom: 6px;
}

.pub-authors strong {
  color: var(--muse-orange-deep);
}

.pub-venue {
  color: var(--muted);
  font-size: 15px;
  margin-bottom: 14px;
}

.pub-card__title {
  transition: color 0.2s;
}
.pub-card:hover .pub-card__title {
  color: var(--muse-orange);
}
.pub-card__title::after {
  content: '▾';
  display: inline-block;
  font-size: 16px;
  margin-left: 8px;
  transition: transform 0.25s;
  color: var(--muted);
}
.pub-card.pub-card--open .pub-card__title::after {
  transform: rotate(180deg);
  color: var(--muse-orange);
}

.pub-abstract {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, opacity 0.3s ease, margin 0.3s ease;
  opacity: 0;
  margin: 0 0 0;
}
.pub-card--open .pub-abstract {
  max-height: 600px;
  opacity: 1;
  margin: 10px 0 14px;
}
.pub-abstract p {
  font-size: 15px;
  line-height: 1.75;
  color: #2a3650;
  padding: 16px 20px;
  background: #f0f2f5;
  border-radius: 8px;
  border-left: 3px solid var(--muse-orange);
  margin: 0;
}

.pub-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 2px;
}

.pub-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border: 1px solid var(--line);
  border-radius: 50%;
  color: var(--muse-slate);
  text-decoration: none;
  transition: all 0.2s;
  position: relative;
  background: none;
  cursor: pointer;
  padding: 0;
  font-size: 0;
}
.pub-action svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}
.pub-action:hover {
  border-color: var(--muse-orange);
  color: var(--muse-orange);
  background: var(--muse-orange-soft);
  text-decoration: none;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(230, 81, 0, 0.15);
}
.pub-action::after {
  content: attr(aria-label);
  position: absolute;
  bottom: calc(100% + 6px);
  left: 50%;
  transform: translateX(-50%) scale(0.9);
  background: var(--muse-navy);
  color: #fff;
  font-family: var(--sans);
  font-size: 11px;
  font-weight: 600;
  padding: 4px 8px;
  border-radius: 6px;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.15s, transform 0.15s;
}
.pub-action:hover::after {
  opacity: 1;
  transform: translateX(-50%) scale(1);
}
.pub-action--copied {
  border-color: var(--muse-green) !important;
  color: var(--muse-green) !important;
  background: var(--muse-green-soft) !important;
}

.pub-topics {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 24px;
}

.topic-label {
  background: var(--surface);
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  color: var(--muse-navy);
  cursor: pointer;
  font-family: var(--sans);
  font-size: 14px;
  font-weight: 650;
  padding: 8px 18px;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
}

.topic-label:hover {
  border-color: var(--muse-orange);
  color: var(--muse-orange-deep);
}

.topic-label.active {
  background: var(--muse-orange);
  border-color: var(--muse-orange);
  color: #fff;
}

.pub-type-filters {
  margin-top: -14px;
  margin-bottom: 24px;
}

.type-label {
  background: var(--surface);
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  color: var(--muse-navy);
  cursor: pointer;
  font-family: var(--sans);
  font-size: 13px;
  font-weight: 650;
  padding: 6px 14px;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
}

.type-label:hover {
  border-color: var(--muse-navy);
  color: var(--muse-navy);
}

.type-label.active {
  background: var(--muse-navy);
  border-color: var(--muse-navy);
  color: #fff;
}

a {
  color: var(--muse-orange);
}

a:hover {
  color: var(--muse-orange-deep);
}

h1,
h2,
h3,
h4,
h5,
h6,
.navbar,
.card-title,
.card-subtitle,
.card-text,
.btn,
.badge {
  font-family: var(--sans);
}

/* ===== No page transitions, instant render ===== */

/* ===== Typing cursor ===== */
.hero-typing {
  visibility: hidden;
  border-right: 3px solid var(--muse-orange);
  animation: blink 0.7s step-end infinite;
  padding-right: 4px;
}

.hero-typing.typing-done {
  border-right-color: transparent;
  animation: none;
}

@keyframes blink {
  50% { border-right-color: transparent; }
}

/* ===== Particle canvas ===== */
.hero-particles-wrap {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}

.hero-particles-wrap + .hero-grid {
  position: relative;
  z-index: 1;
}

/* ===== Research card icons ===== */
.rd-card__icon {
  width: 32px;
  height: 32px;
  margin-bottom: 10px;
  opacity: 0.7;
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.rd-card:hover .rd-card__icon {
  opacity: 1;
  transform: scale(1.15);
}


/* ===== Color-coded research cards ===== */
.rd-card[data-rd="oss"] {
  border-left: 4px solid var(--muse-orange);
}
.rd-card[data-rd="oss"] .rd-card__count {
  background: var(--muse-orange-soft);
  color: var(--muse-orange);
}
.rd-card[data-rd="oss"].open {
  border-color: var(--muse-orange);
}

.rd-card[data-rd="edi"] {
  border-left: 4px solid var(--muse-purple);
}
.rd-card[data-rd="edi"] .rd-card__count {
  background: var(--muse-purple-soft);
  color: var(--muse-purple);
}
.rd-card[data-rd="edi"].open {
  border-color: var(--muse-purple);
}

.rd-card[data-rd="productivity"] {
  border-left: 4px solid var(--muse-cyan);
}
.rd-card[data-rd="productivity"] .rd-card__count {
  background: var(--muse-cyan-soft);
  color: var(--muse-cyan-deep);
}
.rd-card[data-rd="productivity"].open {
  border-color: var(--muse-cyan);
}

.rd-card[data-rd="msr"] {
  border-left: 4px solid var(--muse-green);
}
.rd-card[data-rd="msr"] .rd-card__count {
  background: var(--muse-green-soft);
  color: var(--muse-green);
}
.rd-card[data-rd="msr"].open {
  border-color: var(--muse-green);
}

.rd-card[data-rd="ml4se"] {
  border-left: 4px solid var(--muse-blue);
}
.rd-card[data-rd="ml4se"] .rd-card__count {
  background: var(--muse-blue-soft);
  color: var(--muse-blue);
}
.rd-card[data-rd="ml4se"].open {
  border-color: var(--muse-blue);
}

/* ===== Teaching page ===== */
.teaching-award {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  background: linear-gradient(135deg, #fff9e6 0%, #fff3cc 100%);
  border: 1px solid #f0d060;
  border-radius: var(--radius);
  padding: 20px 24px;
  margin-bottom: 28px;
  font-family: var(--sans);
  font-size: 15px;
}

.teaching-award__icon {
  color: #c8960c;
  flex-shrink: 0;
  margin-top: 2px;
}

.teaching-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 16px;
}

.teaching-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-left: 4px solid var(--muse-orange);
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft);
  padding: 22px;
  transition: border-color 0.2s, box-shadow 0.2s;
  display: flex;
  flex-direction: column;
}

.teaching-card:hover {
  border-color: var(--muse-orange);
  box-shadow: var(--shadow);
}

.teaching-card--grad {
  border-left-color: var(--muse-purple);
}

.teaching-card--grad:hover {
  border-color: var(--muse-purple);
}

.teaching-card__badges {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 10px;
}

.teaching-badge {
  border-radius: 999px;
  font-family: var(--sans);
  font-size: 11px;
  font-weight: 700;
  padding: 3px 10px;
  letter-spacing: 0.02em;
}

.teaching-badge--code {
  background: var(--muse-navy);
  color: #fff;
}

.teaching-badge--semester {
  background: var(--muse-orange-soft);
  color: var(--muse-orange-deep);
}

.teaching-badge--level {
  background: var(--muse-blue-soft);
  color: var(--muse-blue);
}

.teaching-badge--grad {
  background: var(--muse-purple-soft);
  color: var(--muse-purple);
}

.teaching-card__title {
  color: var(--muse-navy);
  font-family: var(--sans);
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 6px;
}

.teaching-card__desc {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.55;
  margin-bottom: 12px;
  flex: 1;
}

.teaching-card__link {
  display: inline-block;
  color: var(--muse-orange);
  font-family: var(--sans);
  font-size: 12px;
  font-weight: 650;
  text-decoration: none;
  border: 1px solid var(--muse-orange);
  border-radius: 6px;
  padding: 4px 12px;
  margin-top: 6px;
  transition: all 0.15s;
}

.teaching-card__link:hover {
  background: var(--muse-orange);
  color: #fff;
  text-decoration: none;
}

.teaching-cta__btn {
  display: inline-block;
  background: var(--muse-orange);
  color: #fff;
  border: none;
  border-radius: 8px;
  font-family: var(--sans);
  font-size: 14px;
  font-weight: 650;
  padding: 10px 22px;
  text-decoration: none;
  margin-top: 8px;
  cursor: pointer;
  transition: background 0.15s;
}

.teaching-cta__btn:hover {
  background: var(--muse-orange-deep);
  color: #fff;
  text-decoration: none;
}
.teaching-cta__btn--copied {
  background: var(--muse-green) !important;
}

/* ===== Member card 3D tilt ===== */
.page-members .card {
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
  transform-style: preserve-3d;
  perspective: 800px;
}

.page-members .card:hover {
  transform: translateY(-6px) rotateX(2deg) rotateY(-2deg);
  border-color: var(--muse-orange);
  box-shadow: 0 20px 40px rgba(16, 32, 64, 0.12);
}

.page-members .card-img-top {
  transition: transform 0.4s ease;
}

.page-members .card:hover .card-img-top {
  transform: scale(1.03);
}

/* ===== Site footer ===== */
.site-footer {
  position: static;
  height: auto;
  background: var(--muse-navy);
  color: rgba(255, 255, 255, 0.7);
  font-family: var(--sans);
  font-size: 14px;
  margin-top: 60px;
  padding: 40px 0;
}

.site-footer a {
  color: rgba(255, 255, 255, 0.9);
  text-decoration: none;
}

.site-footer a:hover {
  color: #ffffff;
  text-decoration: underline;
}

.footer-grid {
  display: grid;
  gap: 32px;
  grid-template-columns: 2fr 1fr 1fr;
}

.footer-brand {
  color: #ffffff;
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
}

.footer-links {
  list-style: none;
  margin: 0;
  padding: 0;
}

.footer-links li {
  margin-bottom: 6px;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.4);
  font-size: 12px;
  margin-top: 28px;
  padding-top: 20px;
  text-align: center;
}

@media (max-width: 700px) {
  .footer-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 991px) {
  .page-main {
    padding-top: 94px;
  }

  .site-navbar .navbar-collapse {
    background: #ffffff;
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 10px;
    margin-top: 10px;
  }

  .hero-card {
    padding: 24px;
  }

  .hero-grid,
  .section-head {
    grid-template-columns: 1fr;
    display: block;
  }
}