@charset "UTF-8";
/* =====================================================================
   UHSSS Lab — main stylesheet
   Inspired by al-folio. Edit the variables below to retheme.
   ===================================================================== */
:root {
  --c-bg: #ffffff;
  --c-bg-soft: #f7f8fa;
  --c-text: #1d1d1f;
  --c-text-muted: #5b6370;
  --c-border: #e6e8ec;
  --c-accent: #C8102E; /* UH Red — change to retheme */
  --c-accent-hover: #9a0c23;
  --c-accent-soft: #fbe7eb;
  --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-display: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --container: 1080px;
  --radius: 10px;
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, .05);
  --shadow: 0 4px 18px rgba(15, 23, 42, .07);
}

@media (prefers-color-scheme: dark) {
  :root {
    --c-bg: #0f1115;
    --c-bg-soft: #161922;
    --c-text: #ececef;
    --c-text-muted: #9aa3b2;
    --c-border: #262a36;
    /* keep UH Red consistent in dark mode — slightly brighter for legibility */
    --c-accent: #E62842;
    --c-accent-hover: #FF3D55;
    --c-accent-soft: #2a1015;
  }
}
* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

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

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* --------------------------------------------------------------------
   Typography
   -------------------------------------------------------------------- */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  line-height: 1.15;
  letter-spacing: -0.015em;
  margin: 1.6em 0 0.5em;
  color: var(--c-text);
  font-weight: 600;
}

h1 {
  font-size: 2.6rem;
  margin-top: 0;
  letter-spacing: -0.025em;
}

h2 {
  font-size: 1.7rem;
}

h3 {
  font-size: 1.25rem;
  letter-spacing: -0.01em;
}

h4 {
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: 0;
}

p {
  margin: 0 0 1rem;
}

a {
  color: var(--c-accent);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.15s, border-color 0.15s;
}

a:hover {
  color: var(--c-accent-hover);
  border-bottom-color: currentColor;
}

.lead {
  font-size: 1.2rem;
  color: var(--c-text-muted);
  margin-top: -0.5em;
}

hr {
  border: 0;
  border-top: 1px solid var(--c-border);
  margin: 2.5rem 0;
}

code {
  font-family: var(--font-mono);
  font-size: 0.92em;
  background: var(--c-bg-soft);
  padding: 1px 5px;
  border-radius: 4px;
}

blockquote {
  border-left: 3px solid var(--c-accent);
  margin: 1.5rem 0;
  padding: 0.25rem 1rem;
  color: var(--c-text-muted);
  background: var(--c-bg-soft);
  border-radius: 0 var(--radius) var(--radius) 0;
}

/* --------------------------------------------------------------------
   Header / Nav
   -------------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: saturate(180%) blur(10px);
  border-bottom: 1px solid var(--c-border);
}

@media (prefers-color-scheme: dark) {
  .site-header {
    background: rgba(15, 17, 21, 0.85);
  }
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.brand {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
  color: var(--c-text);
  border: none;
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
}

.brand:hover {
  color: var(--c-accent);
}

.brand-sub {
  font-family: var(--font-sans);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--c-text-muted);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.brand-icon {
  height: 34px;
  width: auto;
  display: block;
}

@media (max-width: 500px) {
  .brand-icon {
    height: 28px;
  }
}
.site-nav ul {
  list-style: none;
  display: flex;
  gap: 1.6rem;
  margin: 0;
  padding: 0;
}

.site-nav a {
  color: var(--c-text);
  font-weight: 500;
  font-size: 0.95rem;
  border: none;
  padding: 0.25rem 0;
}

.site-nav a:hover {
  color: var(--c-accent);
}

.site-nav a.active {
  color: var(--c-accent);
  border-bottom: 2px solid var(--c-accent);
}

.nav-toggle {
  display: none;
  background: none;
  border: 0;
  width: 32px;
  height: 32px;
  cursor: pointer;
  flex-direction: column;
  justify-content: space-between;
  padding: 7px 4px;
}

.nav-toggle span {
  display: block;
  height: 2px;
  background: var(--c-text);
  border-radius: 2px;
  transition: transform 0.2s, opacity 0.2s;
}

@media (max-width: 760px) {
  .nav-toggle {
    display: flex;
  }
  .site-nav {
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--c-bg);
    border-bottom: 1px solid var(--c-border);
    display: none;
  }
  .site-nav.open {
    display: block;
  }
  .site-nav ul {
    flex-direction: column;
    gap: 0;
    padding: 0.5rem 1.5rem 1rem;
  }
  .site-nav li {
    border-bottom: 1px solid var(--c-border);
  }
  .site-nav li:last-child {
    border-bottom: 0;
  }
  .site-nav a {
    display: block;
    padding: 0.9rem 0;
  }
}
/* --------------------------------------------------------------------
   Main content
   -------------------------------------------------------------------- */
.site-main {
  padding: 3rem 0 1.5rem;
  min-height: 60vh;
}

.page-header {
  margin: 0 0 2.5rem;
}

.page-header .kicker {
  margin-bottom: 0.5rem;
}

.page-header h1 {
  margin: 0 0 0.75rem;
  line-height: 1.05;
}

.page-header .lead {
  font-size: 1.1rem;
  color: var(--c-text-muted);
  line-height: 1.55;
  margin: 0;
  max-width: 100ch;
}

.page-header .lead u {
  text-decoration-thickness: 1px;
  text-underline-offset: 2px;
}

.page-contact .page-header .lead {
  color: var(--c-text);
}

.page-content > :first-child {
  margin-top: 0;
}

.page-content img {
  max-width: 100%;
  border-radius: var(--radius);
}

/* --------------------------------------------------------------------
   Home — cyber hero + sections
   -------------------------------------------------------------------- */
.cyber-hero {
  position: relative;
  margin-top: -3rem; /* break out of .site-main top padding */
  padding: 2.25rem 0 2.25rem;
  background: radial-gradient(ellipse at 20% 10%, rgba(200, 16, 46, 0.18), transparent 55%), radial-gradient(ellipse at 90% 90%, rgba(200, 16, 46, 0.12), transparent 60%), linear-gradient(180deg, #0a0d12 0%, #131720 100%);
  color: #f4f4f6;
  overflow: hidden;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.cyber-hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.cyber-hero-grid {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0.18;
}

.cyber-hero-nodes {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0.9;
}

.cyber-hero-nodes circle {
  animation: pulse 3.2s ease-in-out infinite;
  transform-origin: center;
}

.cyber-hero-nodes circle:nth-child(2) {
  animation-delay: 0.4s;
}

.cyber-hero-nodes circle:nth-child(3) {
  animation-delay: 0.8s;
}

.cyber-hero-nodes circle:nth-child(4) {
  animation-delay: 1.2s;
}

.cyber-hero-nodes circle:nth-child(5) {
  animation-delay: 1.6s;
}

.cyber-hero-nodes circle:nth-child(6) {
  animation-delay: 2s;
}

@keyframes pulse {
  0%, 100% {
    opacity: 0.35;
  }
  50% {
    opacity: 1;
  }
}
@media (prefers-reduced-motion: reduce) {
  .cyber-hero-nodes circle {
    animation: none;
    opacity: 0.8;
  }
}
.cyber-hero-inner {
  position: relative;
  display: flex;
  align-items: center;
  gap: 3rem;
  flex-wrap: wrap;
}

.cyber-hero-text {
  flex: 0 1 auto;
  max-width: 660px;
}

.cyber-hero-logo {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: -2rem;
}

.cyber-hero-logo img {
  width: 230px;
  height: auto;
  filter: drop-shadow(0 0 32px rgba(200, 16, 46, 0.45)) drop-shadow(0 8px 24px rgba(0, 0, 0, 0.3));
  animation: logoFloat 6s ease-in-out infinite;
}

@keyframes logoFloat {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-6px);
  }
}
@media (prefers-reduced-motion: reduce) {
  .cyber-hero-logo img {
    animation: none;
  }
}
@media (max-width: 860px) {
  .cyber-hero-inner {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
  .cyber-hero-text {
    order: 2;
  }
  .cyber-hero-logo {
    order: 1;
  }
  .cyber-hero-logo img {
    width: 160px;
  }
}
.cyber-kicker {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: #ff7c8d;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin: 0 0 1.2rem;
}

.cyber-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.6rem, 6vw, 4rem);
  font-weight: 700;
  line-height: 1;
  margin: 0 0 1.1rem;
  color: #ffffff;
  letter-spacing: -0.035em;
}

.cyber-affil {
  font-size: 0.98rem;
  color: #9aa3b2;
  margin: 0 0 0.9rem;
}

.cyber-tagline {
  font-size: 1.1rem;
  line-height: 1.6;
  color: #c9cdd6;
  margin: 0 0 1.8rem;
  max-width: 640px;
}

.cyber-affil strong {
  color: #f4f4f6;
  font-weight: 500;
}

.hero-cta {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.btn-glow {
  background: var(--c-accent);
  color: #fff;
  border-color: var(--c-accent);
  box-shadow: 0 0 0 0 rgba(200, 16, 46, 0); /* base */
  transition: box-shadow 0.25s, background 0.15s, transform 0.1s;
}

.btn-glow:hover {
  background: var(--c-accent-hover);
  border-color: var(--c-accent-hover);
  color: #fff;
  box-shadow: 0 0 28px rgba(200, 16, 46, 0.55);
}

.btn-ghost {
  background: transparent;
  color: #f4f4f6;
  border-color: rgba(255, 255, 255, 0.25);
}

.btn-ghost:hover {
  border-color: #f4f4f6;
  color: #fff;
}

@media (max-width: 600px) {
  .cyber-hero {
    padding: 2.5rem 0 2.5rem;
  }
  .cyber-hero h1 br {
    display: none;
  }
}
/* Sponsors / funding logo wall */
.sponsors-section {
  margin-top: 3rem;
}

.sponsors-grid {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 2rem 3rem;
  padding: 1.5rem 0 0.5rem;
}

.sponsor {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 120px;
  min-width: 130px;
  border: none;
}

.sponsor img {
  max-height: 100%;
  max-width: 280px;
  width: auto;
  opacity: 1;
  transition: opacity 0.25s ease, transform 0.25s ease;
}

.sponsor:hover img {
  opacity: 1;
  transform: scale(1.05);
}

@media (max-width: 540px) {
  .sponsors-grid {
    gap: 1.5rem 2rem;
  }
  .sponsor {
    height: 80px;
    min-width: 100px;
  }
  .sponsor img {
    max-width: 200px;
  }
}
/* Photo strip — clean side-by-side images, no copy */
.photo-strip {
  margin-top: 2.5rem;
}

.photo-strip-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.photo-strip-grid img {
  width: 100%;
  height: 320px;
  object-fit: cover;
  border-radius: var(--radius);
  display: block;
  transition: transform 0.4s ease;
}

.photo-strip-grid img:hover {
  transform: scale(1.02);
}

@media (max-width: 760px) {
  .photo-strip-grid {
    grid-template-columns: 1fr;
  }
  .photo-strip-grid img {
    height: 220px;
  }
}
/* Research themes card grid (home page) */
.themes-section {
  margin-top: 3.5rem;
}

.themes-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 1rem;
}

.theme-card {
  position: relative;
  display: flex;
  flex-direction: column;
  background: var(--c-bg);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: 1.4rem 1.4rem 4.2rem; /* extra bottom space for arrow */
  color: inherit;
  overflow: hidden;
  transition: transform 0.25s ease, box-shadow 0.35s ease, border-color 0.25s ease;
}

.theme-card-bg {
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle, var(--c-accent) 1.1px, transparent 1.1px);
  background-size: 14px 14px;
  background-position: 0 0;
  opacity: 0;
  transition: opacity 0.35s ease;
  pointer-events: none;
  mask-image: linear-gradient(135deg, transparent 30%, #000 90%);
  -webkit-mask-image: linear-gradient(135deg, transparent 30%, #000 90%);
}

.theme-card:hover {
  transform: translateY(-3px);
  border-color: var(--c-accent);
  box-shadow: 0 14px 38px rgba(15, 23, 42, 0.1);
  color: inherit;
}

.theme-card:hover .theme-card-bg {
  opacity: 0.1;
}

.theme-card-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 1rem;
  position: relative;
}

.theme-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: var(--c-bg-soft);
  color: var(--c-accent);
  position: relative;
  transition: transform 0.35s ease, background 0.25s ease, color 0.25s ease;
}

.theme-card:hover .theme-icon {
  background: var(--c-accent);
  color: #fff;
}

.theme-icon::before {
  content: "";
  position: absolute;
  inset: -4px;
  border-radius: 14px;
  background: var(--c-accent);
  opacity: 0;
  filter: blur(12px);
  transition: opacity 0.35s ease;
  z-index: -1;
}

.theme-icon svg {
  width: 24px;
  height: 24px;
  transition: transform 0.35s ease;
}

.theme-card:hover .theme-icon {
  transform: scale(1.05);
}

.theme-card:hover .theme-icon::before {
  opacity: 0.35;
}

.theme-card:hover .theme-icon svg {
  transform: rotate(-4deg);
}

.theme-index {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--c-text-muted);
  letter-spacing: 0.08em;
  transition: color 0.25s ease;
}

.theme-card:hover .theme-index {
  color: var(--c-accent);
}

.theme-card h3 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 600;
  letter-spacing: -0.015em;
  line-height: 1.25;
  margin: 0 0 0.5rem;
  color: var(--c-text);
  position: relative;
}

.theme-card p {
  color: var(--c-text-muted);
  font-size: 0.92rem;
  line-height: 1.55;
  margin: 0;
  position: relative;
}

.theme-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin-top: 0.85rem;
  position: relative;
}

.theme-tags span {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 500;
  padding: 3px 8px;
  border-radius: 5px;
  background: var(--c-bg-soft);
  color: var(--c-text-muted);
  letter-spacing: 0.03em;
  transition: background 0.25s ease, color 0.25s ease;
}

.theme-card:hover .theme-tags span {
  background: var(--c-accent);
  color: #fff;
}

.theme-arrow {
  position: absolute;
  bottom: 1.3rem;
  right: 1.4rem;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--c-bg-soft);
  color: var(--c-text-muted);
  transition: background 0.25s ease, color 0.25s ease, transform 0.35s ease;
}

.theme-arrow svg {
  width: 14px;
  height: 14px;
}

.theme-card:hover .theme-arrow {
  background: var(--c-accent);
  color: #fff;
  transform: translateX(4px);
}

.btn {
  display: inline-block;
  padding: 0.55rem 1.1rem;
  border-radius: 999px;
  font-weight: 500;
  font-size: 0.95rem;
  border: 1px solid var(--c-border);
  color: var(--c-text);
  background: var(--c-bg);
}

.btn:hover {
  border-color: var(--c-accent);
  color: var(--c-accent);
}

.btn-primary {
  background: var(--c-accent);
  color: #fff;
  border-color: var(--c-accent);
}

.btn-primary:hover {
  background: var(--c-accent-hover);
  border-color: var(--c-accent-hover);
  color: #fff;
}

.section {
  margin: 3.5rem 0;
}

.section-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  border-bottom: 1px solid var(--c-border);
  padding-bottom: 0.5rem;
  margin-bottom: 1.25rem;
}

.section-header h2 {
  font-size: 1.4rem;
  margin: 0;
}

.section-header h2.home-section-title {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--c-accent);
  line-height: 1;
  padding: 0.25rem 0;
}

.section-header h2.home-section-title .home-slash {
  margin-right: 0.25em;
}

.section-header a {
  font-size: 0.9rem;
  color: var(--c-text-muted);
  border: none;
}

.section-header a:hover {
  color: var(--c-accent);
}

/* --------------------------------------------------------------------
   People page — featured PI + portrait card grid
   -------------------------------------------------------------------- */
.people-page {
  padding-bottom: 1rem;
}

.kicker {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--c-accent);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin: 0 0 0.9rem;
}

/* Category sections — compact */
.people-cat {
  margin: 1.5rem 0 2rem;
}

.cat-header {
  margin-bottom: 0.85rem;
}

.cat-header .kicker {
  margin-bottom: 0.25rem;
}

.cat-header h2 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  margin: 0;
  display: inline-flex;
  align-items: baseline;
  gap: 0.5rem;
}

.cat-header h2 .count {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 400;
  color: var(--c-text-muted);
  letter-spacing: 0;
  background: var(--c-bg-soft);
  padding: 1px 7px;
  border-radius: 5px;
}

/* Card grid — 4 per row on desktop, scales down on smaller screens */
.people-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
}

/* Previous members — compact list, no photos */
.previous-members {
  margin-top: 3rem;
  max-width: 720px;
}

.previous-members h2 {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--c-accent);
  margin: 0 0 0.75rem;
}

.previous-members h2 .prev-slash {
  margin-right: 0.25em;
}

.previous-members ul {
  margin: 0;
  padding-left: 1.3rem;
  list-style: disc;
}

.previous-members li {
  margin: 0.3rem 0;
  font-size: 1rem;
  color: var(--c-text);
}

.previous-members .alumni-meta {
  color: var(--c-text-muted);
  font-size: 0.94rem;
}

.person-card {
  position: relative;
  background: var(--c-bg);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

.person-card.is-pi {
  border-color: var(--c-accent);
  box-shadow: 0 0 0 1px var(--c-accent), 0 8px 28px rgba(15, 23, 42, 0.1);
}

.person-card.is-pi:hover {
  box-shadow: 0 0 0 1px var(--c-accent), 0 18px 44px rgba(15, 23, 42, 0.16);
}

.person-photo-wrap {
  width: 100%;
  aspect-ratio: 1/1;
  overflow: hidden;
  background: var(--c-bg-soft);
  position: relative;
}

/* category badge in top-left of the photo */
.person-badge {
  position: absolute;
  top: 0.6rem;
  left: 0.6rem;
  z-index: 2;
  font-family: var(--font-mono);
  font-size: 0.66rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  padding: 3px 8px;
  border-radius: 4px;
  background: rgba(15, 17, 21, 0.65);
  color: #fff;
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}

.is-pi .person-badge {
  background: var(--c-accent);
  color: #fff;
}

/* photo + name link styles */
.person-photo-link,
.person-name-link {
  display: block;
  text-decoration: none;
  border: none;
  color: inherit;
}

.person-photo-link img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* inline contact icons under the role */
.person-contact {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin-top: 0.55rem;
}

.person-contact a {
  width: 28px;
  height: 28px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--c-border);
  border-radius: 6px;
  background: var(--c-bg);
  color: var(--c-text-muted);
  transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.person-contact a:hover {
  background: var(--c-accent);
  color: #fff;
  border-color: var(--c-accent);
}

.person-photo-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.55s ease;
}

.person-info {
  padding: 0.9rem 1rem 1rem;
}

.person-name {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1rem;
  letter-spacing: -0.01em;
  line-height: 1.25;
  margin: 0 0 0.15rem;
  color: var(--c-text);
}

.person-role {
  color: var(--c-text-muted);
  font-size: 0.85rem;
  margin: 0 0 0.45rem;
  line-height: 1.4;
}

.person-bio {
  display: none;
} /* hidden in compact mode for density */
.person-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.15rem 0.55rem;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  text-transform: lowercase;
  letter-spacing: 0.04em;
}

.person-links a {
  color: var(--c-text-muted);
  border: none;
}

.person-links a:hover {
  color: var(--c-accent);
}

@media (max-width: 900px) {
  .people-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}
@media (max-width: 640px) {
  .people-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 0.9rem;
  }
  .person-info {
    padding: 0.75rem 0.85rem 0.9rem;
  }
  .person-name {
    font-size: 0.95rem;
  }
}
/* --------------------------------------------------------------------
   Person detail page (e.g. /people/kyuinlee/)
   -------------------------------------------------------------------- */
.person-page {
  padding-bottom: 2rem;
}

.person-page-header {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 2.5rem;
  margin: 1rem 0 3rem;
  padding-bottom: 2.5rem;
  border-bottom: 1px solid var(--c-border);
  align-items: center;
}

.person-page-photo {
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--c-bg-soft);
  position: relative;
}

.person-page-photo img {
  width: 100%;
  aspect-ratio: 1/1;
  object-fit: cover;
  display: block;
}

.person-page-info h1 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.05;
  margin: 0.25rem 0 0.75rem;
}

.person-page-info .lead {
  font-size: 1.1rem;
  color: var(--c-text-muted);
  line-height: 1.6;
  margin: 0 0 1.5rem;
  max-width: 60ch;
}

.person-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}

.person-actions .btn {
  font-size: 0.92rem;
  padding: 0.5rem 1rem;
}

/* Two-column body: main content + sidebar */
.person-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 280px;
  gap: 3rem;
  margin-bottom: 2rem;
}

.person-main h2 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 600;
  letter-spacing: -0.015em;
  margin: 1.75em 0 0.5em;
}

.person-main h2:first-child {
  margin-top: 0;
}

.person-main h3 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 600;
  margin: 1.6em 0 0.35em;
}

.person-main p {
  line-height: 1.7;
}

.person-main ul {
  padding-left: 1.25rem;
}

.person-main ul li {
  margin: 0.35rem 0;
  line-height: 1.55;
}

.person-side {
  align-self: start;
  position: sticky;
  top: 90px;
}

.person-side-block {
  margin: 0 0 1.75rem;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--c-border);
}

.person-side-block:last-child {
  border-bottom: none;
}

.person-side h3 {
  font-family: var(--font-display);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--c-accent);
  margin: 0 0 0.85rem;
}

.person-side ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.person-side ul li {
  margin: 0 0 0.65rem;
  line-height: 1.5;
  font-size: 0.92rem;
}

.person-side ul li strong {
  display: block;
  color: var(--c-text);
  font-weight: 600;
}

.person-side .muted {
  color: var(--c-text-muted);
  font-size: 0.88rem;
}

.tag-list {
  display: flex !important;
  flex-wrap: wrap;
  gap: 0.35rem !important;
  list-style: none !important;
  padding: 0 !important;
  margin: 0 !important;
}

.tag-list li {
  background: var(--c-bg-soft);
  border: 1px solid var(--c-border);
  border-radius: 999px;
  padding: 3px 10px;
  font-size: 0.8rem;
  color: var(--c-text-muted);
  margin: 0 !important;
}

@media (max-width: 860px) {
  .person-page-header {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
  .person-page-photo {
    max-width: 280px;
  }
  .person-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  .person-side {
    position: static;
  }
}
/* --------------------------------------------------------------------
   Publications
   -------------------------------------------------------------------- */
.year-heading {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  line-height: 1;
  margin: 2.5rem 0 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--c-border);
  color: var(--c-accent);
}

.year-heading .year-slash {
  margin-right: 0.25em;
}

/* Publication filter chips */
.pub-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 0 0 2rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--c-border);
}

.pub-filter {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.45rem 1rem;
  border: 1px solid var(--c-border);
  border-radius: 999px;
  background: var(--c-bg);
  color: var(--c-text);
  font-family: var(--font-sans);
  font-size: 0.88rem;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.2s, color 0.2s, border-color 0.2s, transform 0.15s;
}

.pub-filter:hover {
  border-color: var(--c-accent);
  color: var(--c-accent);
}

.pub-filter:active {
  transform: translateY(1px);
}

.pub-filter.active {
  background: var(--c-accent);
  border-color: var(--c-accent);
  color: #fff;
}

.pub-year-section {
  margin-bottom: 2rem;
}

.pub-empty {
  text-align: center;
  color: var(--c-text-muted);
  padding: 3rem 0;
}

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

.pub[hidden],
.pub-year-section[hidden] {
  display: none !important;
}

.pub {
  display: grid;
  grid-template-columns: 176px 1fr;
  gap: 1.75rem;
  padding: 1.6rem 0;
  border-bottom: 1px solid var(--c-border);
  align-items: flex-start;
}

.pub:last-child {
  border-bottom: none;
}

.pub-figure {
  width: 176px;
  aspect-ratio: 1/1;
  background: var(--c-bg-soft);
  border: 1px solid var(--c-border);
  border-radius: 8px;
  overflow: hidden;
  position: relative;
}

.pub-figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.pub-figure-empty {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--c-text-muted);
  background: var(--c-bg-soft);
}

.pub-figure-empty svg {
  width: 32px;
  height: 32px;
  opacity: 0.5;
}

.pub-body {
  min-width: 0;
}

.pub-title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.1rem;
  letter-spacing: -0.015em;
  line-height: 1.3;
  margin: 0 0 0.4rem;
  color: var(--c-text);
}

.pub-authors {
  color: #6B8AC4;
  font-size: 0.95rem;
  line-height: 1.5;
  margin: 0 0 0.25rem;
}

.pub-authors strong {
  color: inherit;
  font-weight: inherit;
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

.pub-venue {
  font-family: var(--font-mono);
  font-size: 0.92rem;
  letter-spacing: 0.03em;
  color: var(--c-text-muted);
  margin: 0 0 0.8rem;
  text-transform: uppercase;
}

.pub-venue-name {
  color: #D97757;
}

.pub-award-row {
  margin: -0.1rem 0 0.5rem;
}

.pub-award {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 2px 10px;
  border-radius: 4px;
  background: rgba(234, 179, 8, 0.14);
  border: 1px solid rgba(234, 179, 8, 0.55);
  color: #EAB308;
  font-size: 0.76rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  text-transform: none;
}

.pub-award-star {
  font-size: 1rem;
  line-height: 1;
  color: #EAB308;
}

/* Theme tags on each publication — link back to the research page */
.pub-themes {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin: 0 0 0.8rem;
}

.pub-theme {
  display: inline-block;
  font-size: 0.76rem;
  font-weight: 500;
  padding: 3px 9px;
  border-radius: 999px;
  border: 1px solid var(--c-border);
  background: var(--c-bg);
  color: var(--c-text-muted);
  letter-spacing: 0;
  text-transform: none;
  border-bottom: 1px solid var(--c-border); /* override link underline */
  transition: background 0.2s, color 0.2s, border-color 0.2s;
}

.pub-theme:hover {
  background: var(--c-accent);
  color: #fff;
  border-color: var(--c-accent);
}

.pub-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.pub-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.45rem 0.9rem;
  border-radius: 6px;
  border: 1px solid var(--c-border);
  background: var(--c-bg);
  color: var(--c-text);
  font-family: var(--font-mono);
  font-size: 0.76rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-decoration: none;
  cursor: pointer;
  transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.pub-btn svg {
  flex-shrink: 0;
}

.pub-btn:hover {
  background: var(--c-accent);
  color: #fff;
  border-color: var(--c-accent);
}

/* Active "Abstract" toggle keeps the red fill in place */
.pub-btn-toggle.is-open {
  background: var(--c-accent);
  color: #fff;
  border-color: var(--c-accent);
}

/* Expandable abstract panel */
.pub-abstract {
  margin-top: 1rem;
  padding: 1rem 1.15rem;
  background: var(--c-bg-soft);
  border: 1px solid var(--c-border);
  border-left: 3px solid var(--c-accent);
  border-radius: 6px;
  font-size: 0.94rem;
  line-height: 1.65;
  color: var(--c-text);
  animation: abstractIn 0.3s ease-out;
}

.pub-abstract p {
  margin: 0;
}

.pub-abstract p + p {
  margin-top: 0.75rem;
}

@keyframes abstractIn {
  from {
    opacity: 0;
    transform: translateY(-4px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
/* Expandable BibTeX panel */
.pub-bibtex {
  position: relative;
  margin-top: 1rem;
  background: var(--c-bg-soft);
  border: 1px solid var(--c-border);
  border-left: 3px solid var(--c-accent);
  border-radius: 6px;
  animation: abstractIn 0.3s ease-out;
}

.pub-bibtex pre {
  margin: 0;
  padding: 1rem 1.15rem;
  overflow-x: auto;
  background: transparent;
}

.pub-bibtex code {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  line-height: 1.55;
  color: var(--c-text);
  white-space: pre;
  background: transparent;
  border: none;
  padding: 0;
}

.pub-bibtex-copy {
  position: absolute;
  top: 0.55rem;
  right: 0.55rem;
  padding: 0.25rem 0.6rem;
  border-radius: 4px;
  border: 1px solid var(--c-border);
  background: var(--c-bg);
  color: var(--c-text-muted);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
  transition: background-color 0.2s, color 0.2s, border-color 0.2s;
}

.pub-bibtex-copy:hover {
  background: var(--c-accent);
  color: #fff;
  border-color: var(--c-accent);
}

.pub-bibtex-copy.is-copied {
  background: var(--c-accent);
  color: #fff;
  border-color: var(--c-accent);
}

@media (max-width: 720px) {
  .pub {
    grid-template-columns: 128px 1fr;
    gap: 1.25rem;
  }
  .pub-figure {
    width: 128px;
  }
  .pub-title {
    font-size: 1.05rem;
  }
}
@media (max-width: 480px) {
  .pub {
    grid-template-columns: 1fr;
  }
  .pub-figure {
    width: 100%;
    max-width: 280px;
  }
}
/* --------------------------------------------------------------------
   News list
   -------------------------------------------------------------------- */
.news-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.news-item {
  display: grid;
  grid-template-columns: 130px 1fr;
  gap: 1.25rem;
  padding: 1rem 0;
  border-bottom: 1px solid var(--c-border);
}

.news-date {
  color: var(--c-text-muted);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding-top: 0.1rem;
  white-space: nowrap;
}

.news-body {
  color: var(--c-text);
  font-size: 0.98rem;
  line-height: 1.55;
}

.news-body a {
  color: var(--c-accent);
}

.news-body a:hover {
  text-decoration: underline;
}

.news-item h3 {
  font-family: var(--font-sans);
  font-size: 1.05rem;
  margin: 0 0 0.25rem;
  font-weight: 600;
}

.news-item h3 a {
  color: var(--c-text);
  border: none;
}

.news-item h3 a:hover {
  color: var(--c-accent);
}

.news-summary {
  color: var(--c-text-muted);
  margin: 0;
  font-size: 0.95rem;
}

@media (max-width: 600px) {
  .news-item {
    grid-template-columns: 1fr;
    gap: 0.15rem;
  }
}
/* --------------------------------------------------------------------
   Research page — cyber hero + illustrated cards
   -------------------------------------------------------------------- */
.research-hero {
  position: relative;
  margin-top: -3rem;
  padding: 4.5rem 0 4rem;
  background: radial-gradient(ellipse at 80% 20%, rgba(200, 16, 46, 0.18), transparent 55%), radial-gradient(ellipse at 10% 90%, rgba(200, 16, 46, 0.1), transparent 60%), linear-gradient(180deg, #0a0d12 0%, #131720 100%);
  color: #f4f4f6;
  overflow: hidden;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.research-hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.research-hero-grid {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0.15;
}

.research-hero-nodes {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.research-hero-nodes circle {
  animation: pulse 3.2s ease-in-out infinite;
  transform-origin: center;
}

.research-hero-nodes circle:nth-child(2) {
  animation-delay: 0.4s;
}

.research-hero-nodes circle:nth-child(3) {
  animation-delay: 0.8s;
}

.research-hero-nodes circle:nth-child(4) {
  animation-delay: 1.2s;
}

.research-hero-nodes circle:nth-child(5) {
  animation-delay: 1.6s;
}

@media (prefers-reduced-motion: reduce) {
  .research-hero-nodes circle {
    animation: none;
  }
}
.research-hero-inner {
  position: relative;
}

.cyber-kicker { /* re-used here */
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: #ff7c8d;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin: 0 0 1rem;
  font-weight: 500;
}

.research-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 5vw, 3.4rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.03em;
  margin: 0 0 1rem;
  color: #fff;
}

.research-lede {
  font-size: 1.05rem;
  line-height: 1.65;
  color: #c9cdd6;
  max-width: 64ch;
  margin: 0 0 2rem;
}

.research-stats {
  display: flex;
  gap: 2.5rem;
  flex-wrap: wrap;
}

.research-stats > div {
  display: flex;
  flex-direction: column;
}

.research-stats span {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 600;
  color: #fff;
  letter-spacing: -0.02em;
  line-height: 1;
}

.research-stats label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #9aa3b2;
  margin-top: 0.35rem;
}

/* Editorial card grid — dark cards with topic-specific patterns + bold type */
.research-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
  margin: 3rem 0 2rem;
}

@media (max-width: 720px) {
  .research-grid {
    grid-template-columns: 1fr;
  }
}
.research-card {
  position: relative;
  display: flex;
  flex-direction: column;
  min-height: 320px;
  padding: 1.75rem;
  background: linear-gradient(180deg, #0e1117 0%, #161a23 100%);
  border: 1px solid #262a36;
  border-radius: var(--radius);
  overflow: hidden;
  color: #f4f4f6;
  text-decoration: none;
  transition: border-color 0.25s ease;
}

.research-card:hover {
  color: #f4f4f6;
  border-color: var(--c-accent);
}

/* topic-specific background pattern */
.research-card-pattern {
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0.15;
  -webkit-mask-image: linear-gradient(135deg, #000 0%, transparent 70%);
  mask-image: linear-gradient(135deg, #000 0%, transparent 70%);
}

.research-card-pattern svg {
  width: 100%;
  height: 100%;
  display: block;
}

/* top row: index + tags */
.research-card-top {
  position: relative;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: auto;
}

.research-card-num {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--c-accent);
  letter-spacing: 0.14em;
}

.research-card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem;
  justify-content: flex-end;
}

.research-card-tags span {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 500;
  padding: 3px 8px;
  border-radius: 5px;
  background: rgba(255, 255, 255, 0.08);
  color: rgba(255, 255, 255, 0.75);
  letter-spacing: 0.03em;
}

/* body: huge title + description */
.research-card-body {
  position: relative;
  margin: 2.5rem 0 1.5rem;
}

.research-card h2 {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3vw, 2rem);
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.05;
  margin: 0 0 0.85rem;
  color: #fff;
}

.research-card p {
  color: rgba(255, 255, 255, 0.7);
  font-size: 1rem;
  line-height: 1.55;
  margin: 0;
  max-width: 38ch;
}

/* foot: Explore CTA */
.research-card-foot {
  position: relative;
  margin-top: auto;
  padding-top: 1rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.research-card-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--c-accent);
  font-weight: 500;
}

.project-hero {
  width: 100%;
  height: auto;
  border-radius: var(--radius);
  margin: 1rem 0 2rem;
}

/* --------------------------------------------------------------------
   Project / theme detail page
   -------------------------------------------------------------------- */
.project-page {
  padding-bottom: 2rem;
}

.project-hero-band {
  position: relative;
  margin-top: -3rem;
  padding: 3rem 0 2.5rem;
  background: radial-gradient(ellipse at 80% 30%, rgba(200, 16, 46, 0.14), transparent 55%), linear-gradient(180deg, #0a0d12 0%, #131720 100%);
  color: #f4f4f6;
  overflow: hidden;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  margin-bottom: 2.5rem;
}

.project-hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.project-hero-grid {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0.18;
}

.project-hero-inner {
  position: relative;
}

.project-hero-inner .kicker {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: #ff7c8d;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin: 0 0 0.75rem;
}

.project-hero-inner h1 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4.5vw, 3rem);
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.05;
  color: #fff;
  margin: 0 0 0.8rem;
}

.project-hero-inner .lead {
  font-size: 1.1rem;
  line-height: 1.55;
  color: rgba(255, 255, 255, 0.8);
  margin: 0;
  max-width: 64ch;
}

/* Hero photo for each research page (set hero_image: in front matter) */
.project-hero-photo {
  margin: 0 0 3rem;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--c-border);
  background: var(--c-bg-soft);
}

.project-hero-photo img {
  display: block;
  width: 100%;
  height: auto;
  max-height: 420px;
  object-fit: cover;
}

.project-hero-photo figcaption {
  padding: 0.85rem 1.1rem;
  font-size: 0.9rem;
  color: var(--c-text-muted);
  border-top: 1px solid var(--c-border);
}

/* Article content styling — slightly nicer prose for project pages */
.project-content {
  max-width: none;
}

.project-content h2 {
  font-family: var(--font-display);
  font-size: 1.55rem;
  font-weight: 600;
  letter-spacing: -0.015em;
  margin: 2.5em 0 0.75em;
  padding-top: 0.25em;
}

.project-content h2:first-child {
  margin-top: 0;
}

.project-content h3 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 600;
  margin: 1.6em 0 0.35em;
}

.project-content p {
  font-size: 1.02rem;
  line-height: 1.75;
  margin: 0 0 1rem;
  color: var(--c-text);
}

.project-content ul {
  padding-left: 1.25rem;
  margin: 0.75rem 0 1.5rem;
}

.project-content ul li {
  margin: 0.5rem 0;
  line-height: 1.65;
}

.project-content ul li strong {
  font-weight: 600;
  color: var(--c-accent);
}

/* Concept flow — 3-step horizontal diagram */
.concept-flow {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin: 2.5rem 0 3rem;
  padding: 0;
  list-style: none;
}

.concept-step {
  position: relative;
  padding: 1.5rem 1.25rem 1.25rem;
  background: linear-gradient(180deg, var(--c-bg-soft) 0%, var(--c-bg) 100%);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  overflow: hidden;
}

.concept-step::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--c-accent);
}

.concept-step .step-num {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  color: var(--c-accent);
  margin-bottom: 0.65rem;
}

.concept-step h3 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 600;
  margin: 0 0 0.35rem;
  letter-spacing: -0.01em;
}

.concept-step p {
  font-size: 0.92rem;
  line-height: 1.55;
  color: var(--c-text-muted);
  margin: 0;
}

/* Connector arrow between steps */
.concept-flow .concept-step:not(:last-child)::after {
  content: "→";
  position: absolute;
  right: -22px;
  top: 50%;
  transform: translateY(-50%);
  width: 28px;
  height: 28px;
  background: var(--c-bg);
  color: var(--c-accent);
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  border: 1px solid var(--c-border);
  z-index: 2;
}

@media (max-width: 760px) {
  .concept-flow {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
  .concept-flow .concept-step:not(:last-child)::after {
    right: 50%;
    top: auto;
    bottom: -22px;
    transform: translateX(50%);
    content: "↓";
  }
  .project-hero-band {
    padding: 2rem 0 1.75rem;
  }
}
.project-pubs {
  margin-top: 3.5rem;
  padding-top: 2rem;
  border-top: 1px solid var(--c-border);
}

/* --------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------- */
.site-footer {
  background: var(--c-bg-soft);
  border-top: 1px solid var(--c-border);
  padding: 1.25rem 0;
  margin-top: 1.5rem;
  font-size: 0.88rem;
  line-height: 1.5;
  color: var(--c-text-muted);
}

.site-footer .footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.site-footer .footer-logo {
  height: 64px;
  width: auto;
  display: block;
  flex-shrink: 0;
}

.site-footer .footer-text {
  text-align: right;
}

@media (max-width: 540px) {
  .site-footer .footer-inner {
    justify-content: center;
    gap: 0.75rem;
  }
  .site-footer .footer-logo {
    height: 48px;
  }
  .site-footer .footer-text {
    text-align: center;
  }
}
/* --------------------------------------------------------------------
   Misc
   -------------------------------------------------------------------- */
.post-back {
  margin-top: 3rem;
  font-size: 0.95rem;
}

.post-date {
  color: var(--c-text-muted);
  font-size: 0.9rem;
  margin: 0;
}

/* --------------------------------------------------------------------
   Teaching page — dark editorial course cards with textbook
   -------------------------------------------------------------------- */
.courses-list {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.course {
  position: relative;
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 2rem;
  padding: 2rem 2.25rem;
  background: linear-gradient(180deg, #0e1117 0%, #161a23 100%);
  border: 1px solid #262a36;
  border-radius: var(--radius);
  overflow: hidden;
  color: #f4f4f6;
}

/* topic-specific bg pattern (mirrors research card style) */
.course-pattern {
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0.12;
  -webkit-mask-image: linear-gradient(135deg, #000 0%, transparent 70%);
  mask-image: linear-gradient(135deg, #000 0%, transparent 70%);
}

.course-pattern svg {
  width: 100%;
  height: 100%;
  display: block;
}

/* CSS-rendered textbook */
.course-book-col {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

/* real textbook cover image */
.book-figure {
  margin: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.65rem;
  text-align: center;
}

.book-figure img {
  display: block;
  width: 180px;
  height: auto;
  max-height: 240px;
  object-fit: contain;
  border-radius: 3px;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.4), 0 12px 28px rgba(0, 0, 0, 0.55), -2px 0 0 rgba(0, 0, 0, 0.5);
}

.book-figure figcaption {
  display: flex;
  flex-direction: column;
  gap: 2px;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.04em;
  color: rgba(255, 255, 255, 0.55);
  line-height: 1.4;
}

.book-figure figcaption span:first-child {
  color: rgba(255, 255, 255, 0.8);
  font-weight: 500;
}

.book {
  position: relative;
  width: 180px;
  height: 240px;
  border-radius: 4px 6px 6px 4px;
  overflow: hidden;
  background: linear-gradient(135deg, #1c2030 0%, #0c0f14 100%);
  border: 1px solid #2a2f3d;
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.5), 0 2px 6px rgba(0, 0, 0, 0.3);
  flex-shrink: 0;
}

.book::after {
  /* subtle inner highlight */
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.04) 0%, transparent 30%);
  pointer-events: none;
}

.book-spine {
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 8px;
  background: var(--c-accent);
  box-shadow: inset -1px 0 0 rgba(0, 0, 0, 0.35);
}

.book-cover {
  position: relative;
  height: 100%;
  padding: 16px 14px 16px 22px;
  display: flex;
  flex-direction: column;
}

.book-code {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: #fff;
  margin: 0;
}

.book-title {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  line-height: 1.2;
  color: #fff;
  margin: auto 0;
}

.book-label {
  font-family: var(--font-mono);
  font-size: 0.58rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.45);
  margin: 0;
}

/* right-side content */
.course-content {
  position: relative;
  display: flex;
  flex-direction: column;
}

.course-meta-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.course-code-tag {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--c-accent);
}

.course-level {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 3px 9px;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.08);
  color: rgba(255, 255, 255, 0.8);
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.course-content h2 {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 2.8vw, 2.1rem);
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.1;
  color: #fff;
  margin: 0 0 0.85rem;
}

.course-description {
  font-size: 1rem;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.75);
  margin: 0 0 1.25rem;
  max-width: 60ch;
}

.course-topics {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin-bottom: 1.5rem;
}

.course-topics span {
  font-size: 0.8rem;
  font-weight: 500;
  padding: 4px 11px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: rgba(255, 255, 255, 0.85);
}

.course-semesters {
  margin-top: auto;
}

.course-semesters-label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.55);
  margin: 0 0 0.5rem;
}

.course-semester-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem;
}

.course-semester-chips span {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  padding: 3px 8px;
  border-radius: 5px;
  background: rgba(255, 255, 255, 0.06);
  color: rgba(255, 255, 255, 0.85);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

@media (max-width: 720px) {
  .course {
    grid-template-columns: 1fr;
    gap: 1.5rem;
    padding: 1.5rem 1.5rem 1.75rem;
  }
  .course-book-col {
    justify-content: flex-start;
  }
  .book {
    width: 140px;
    height: 190px;
  }
}
/* --------------------------------------------------------------------
   Open Positions / Join the Lab page
   -------------------------------------------------------------------- */
.join-section-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--c-accent);
  margin: 0 0 0.75rem;
}

.join-section-lead {
  color: var(--c-text-muted);
  font-size: 1rem;
  margin: 0 0 2rem;
  max-width: 700px;
}

.join-projects {
  margin: 0 0 4rem;
}

.join-projects-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

.join-project {
  position: relative;
  padding: 1.6rem 1.8rem;
  border: 1px solid var(--c-border);
  border-radius: 10px;
  background: var(--c-bg-soft);
  transition: border-color 0.2s, transform 0.2s;
}

.join-project:hover {
  border-color: var(--c-accent);
  transform: translateY(-2px);
}

.join-project-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin: 0 0 0.6rem;
}

.join-project-num {
  font-family: var(--font-mono);
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--c-accent);
  letter-spacing: 0;
}

.join-project-tags {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.join-project-tags span {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 2px 8px;
  border: 1px solid var(--c-border);
  border-radius: 999px;
  color: var(--c-text-muted);
}

.join-project h3 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
  margin: 0 0 0.6rem;
  letter-spacing: -0.01em;
  color: var(--c-text);
  line-height: 1.3;
}

.join-project p {
  color: var(--c-text-muted);
  font-size: 0.96rem;
  line-height: 1.6;
  margin: 0;
}

.join-criteria {
  margin: 0 0 4rem;
}

.join-criteria-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  padding: 1.5rem 0 0;
  border-top: 1px solid var(--c-border);
}

.join-criteria-block .join-criteria-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--c-text-muted);
  margin: 0 0 0.6rem;
}

.join-criteria-text {
  font-size: 0.98rem;
  line-height: 1.55;
  color: var(--c-text);
  margin: 0;
}

.join-chiplist {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.join-chiplist li {
  font-size: 0.94rem;
  line-height: 1.4;
  color: var(--c-text);
  padding-left: 1.1rem;
  position: relative;
}

.join-chiplist li::before {
  content: "›";
  position: absolute;
  left: 0;
  color: var(--c-accent);
  font-family: var(--font-mono);
  font-weight: 700;
}

.join-apply {
  margin: 0 0 2rem;
}

.join-apply-card {
  background: var(--c-bg-soft);
  border: 1px solid var(--c-border);
  border-left: 4px solid var(--c-accent);
  border-radius: 10px;
  padding: 2rem 2.25rem;
}

.join-apply-instruction {
  font-size: 1rem;
  margin: 0 0 1rem;
  color: var(--c-text);
}

.join-email {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: 500;
  color: var(--c-text);
  margin: 0 0 1rem;
  padding: 0;
  border: none;
  border-bottom: 1px solid var(--c-border);
  border-radius: 0;
  text-decoration: none;
  letter-spacing: 0;
  background: transparent;
  cursor: pointer;
  transition: color 0.2s, border-color 0.2s;
}

.join-email:hover {
  color: var(--c-accent);
  border-bottom-color: var(--c-accent);
  background: transparent;
}

.join-apply-subject {
  margin: 0 0 1.5rem;
  color: var(--c-text-muted);
  font-size: 0.94rem;
}

.join-apply-subject code {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  padding: 2px 6px;
  border-radius: 4px;
  background: var(--c-bg);
  border: 1px solid var(--c-border);
  color: var(--c-text);
}

.join-apply-list {
  list-style: none;
  margin: 0 0 1.5rem;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
}

.join-apply-list li {
  display: flex;
  align-items: baseline;
  gap: 0.9rem;
  font-size: 0.98rem;
  line-height: 1.5;
  color: var(--c-text);
}

.join-apply-step {
  flex-shrink: 0;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--c-accent);
  letter-spacing: 0.04em;
}

.join-apply-note {
  font-size: 0.88rem;
  color: var(--c-text-muted);
  margin: 0;
  font-style: italic;
}

@media (max-width: 720px) {
  .join-criteria-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
  .join-project-head {
    flex-wrap: wrap;
  }
  .join-apply-card {
    padding: 1.5rem;
  }
  .join-email {
    font-size: 0.95rem;
  }
}

/*# sourceMappingURL=main.css.map */