/* ============================================================
   GMMSB @ LNCC — "Glass Lab" Design System
   Glassmorphism + gradient mesh + modern depth
   ============================================================ */

/* --- CSS Custom Properties --- */
:root {
  --bg: #f0f4f8;
  --bg-alt: #e8edf4;
  --surface: rgba(255, 255, 255, 0.55);
  --surface-solid: #ffffff;
  --glass: rgba(255, 255, 255, 0.45);
  --glass-border: rgba(255, 255, 255, 0.6);
  --glass-strong: rgba(255, 255, 255, 0.7);
  --accent: #0ea5e9;
  --accent-light: rgba(14, 165, 233, 0.1);
  --accent-hover: #0284c7;
  --accent-glow: rgba(14, 165, 233, 0.25);
  --highlight: #f97316;
  --violet: #8b5cf6;
  --emerald: #10b981;
  --text: #0f172a;
  --text-muted: #475569;
  --text-light: #94a3b8;
  --border: rgba(148, 163, 184, 0.25);
  --border-light: rgba(148, 163, 184, 0.12);
  --shadow: 0 2px 8px rgba(0, 0, 0, 0.04), 0 8px 24px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.08), 0 24px 60px rgba(0, 0, 0, 0.06);
  --shadow-glow: 0 0 40px var(--accent-glow);
  --blur: blur(20px);
  --radius: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --nav-h: 64px;
  --font-display: 'Outfit', system-ui, sans-serif;
  --font-body: 'Outfit', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  --max-w: 1200px;
  --section-py: 100px;
}

/* --- Reset & Base --- */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-h);
}

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

a {
  color: var(--accent);
  text-decoration: none;
  transition: color 0.2s;
}

a:hover {
  color: var(--accent-hover);
}

h1,
h2,
h3,
h4 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.15;
  color: var(--text);
}

h1 {
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  letter-spacing: -0.02em;
}

h3 {
  font-size: clamp(1.15rem, 2vw, 1.4rem);
}

p {
  color: var(--text-muted);
  max-width: 680px;
}

/* --- Utility --- */
.container {
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: var(--section-py) 0;
  position: relative;
}

.section--alt {
  background: var(--bg-alt);
}

/* Gradient mesh backgrounds for alt sections */
.section--mesh {
  background:
    radial-gradient(ellipse at 20% 50%, rgba(14, 165, 233, 0.08) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 20%, rgba(139, 92, 246, 0.06) 0%, transparent 50%),
    radial-gradient(ellipse at 60% 80%, rgba(16, 185, 129, 0.06) 0%, transparent 50%),
    var(--bg-alt);
}

.section-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 12px;
  display: inline-block;
  background: var(--accent-light);
  padding: 4px 12px;
  border-radius: 100px;
}

.section-title {
  margin-bottom: 16px;
}

.section-subtitle {
  font-size: 1.1rem;
  font-weight: 400;
  color: var(--text-muted);
  max-width: 600px;
}

.section-header {
  margin-bottom: 56px;
}

.text-center {
  text-align: center;
}

.text-center .section-subtitle {
  margin-left: auto;
  margin-right: auto;
}

/* --- Scroll Animations --- */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1),
    transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-1 {
  transition-delay: 0.1s;
}

.reveal-delay-2 {
  transition-delay: 0.2s;
}

.reveal-delay-3 {
  transition-delay: 0.3s;
}

.reveal-delay-4 {
  transition-delay: 0.4s;
}

/* --- Glass mixin-like approach --- */
.glass {
  background: var(--glass);
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
  border: 1px solid var(--glass-border);
}

.glass-strong {
  background: var(--glass-strong);
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
  border: 1px solid var(--glass-border);
}

/* --- Navigation --- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-h);
  z-index: 1000;
  background: rgba(240, 244, 248, 0.7);
  backdrop-filter: blur(24px) saturate(1.4);
  -webkit-backdrop-filter: blur(24px) saturate(1.4);
  border-bottom: 1px solid var(--border-light);
  transition: box-shadow 0.3s, background 0.3s;
}

.nav.scrolled {
  background: rgba(255, 255, 255, 0.75);
  box-shadow: 0 1px 20px rgba(0, 0, 0, 0.06);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
}

.nav__brand {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--text);
  letter-spacing: -0.03em;
  text-decoration: none;
  background: linear-gradient(135deg, var(--accent), var(--violet));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav__brand:hover {
  opacity: 0.8;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 2px;
  list-style: none;
}

.nav__links a {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-muted);
  padding: 7px 14px;
  border-radius: 10px;
  transition: color 0.2s, background 0.2s;
  text-decoration: none;
}

.nav__links a:hover {
  color: var(--accent);
  background: var(--accent-light);
}

.nav__links a.active {
  color: var(--accent);
  background: var(--accent-light);
  font-weight: 600;
}

/* Mobile menu button */
.nav__toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  color: var(--text);
}

.nav__toggle svg {
  width: 24px;
  height: 24px;
}

/* --- Hero --- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: calc(var(--nav-h) + 40px) 24px 80px;
  position: relative;
  overflow: hidden;
  /* Gradient mesh hero background */
  background:
    radial-gradient(ellipse at 25% 0%, rgba(14, 165, 233, 0.15) 0%, transparent 50%),
    radial-gradient(ellipse at 75% 0%, rgba(139, 92, 246, 0.1) 0%, transparent 50%),
    radial-gradient(ellipse at 50% 100%, rgba(16, 185, 129, 0.08) 0%, transparent 50%),
    var(--bg);
}

/* Animated floating orbs */
.hero::before,
.hero::after {
  content: '';
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  pointer-events: none;
  animation: float 20s ease-in-out infinite;
}

.hero::before {
  width: 500px;
  height: 500px;
  background: rgba(14, 165, 233, 0.12);
  top: -10%;
  right: -5%;
  animation-delay: -5s;
}

.hero::after {
  width: 400px;
  height: 400px;
  background: rgba(139, 92, 246, 0.08);
  bottom: -10%;
  left: -5%;
  animation-delay: -10s;
}

@keyframes float {

  0%,
  100% {
    transform: translate(0, 0) scale(1);
  }

  25% {
    transform: translate(30px, -20px) scale(1.05);
  }

  50% {
    transform: translate(-20px, 20px) scale(0.95);
  }

  75% {
    transform: translate(10px, 10px) scale(1.02);
  }
}

.hero__content {
  position: relative;
  z-index: 1;
  max-width: 740px;
}

.hero__logo {
  max-width: 580px;
  margin: 0 auto 44px;
  filter: drop-shadow(0 4px 20px rgba(0, 0, 0, 0.08));
}

.hero__title {
  margin-bottom: 20px;
  color: var(--text);
  background: linear-gradient(135deg, var(--text) 0%, #334155 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero__subtitle {
  font-size: 1.15rem;
  line-height: 1.75;
  color: var(--text-muted);
  max-width: 560px;
  margin: 0 auto 44px;
  font-weight: 400;
}

.hero__cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 600;
  color: #fff;
  padding: 12px 28px;
  background: linear-gradient(135deg, var(--accent), #38bdf8);
  border-radius: 100px;
  transition: transform 0.2s, box-shadow 0.2s;
  box-shadow: 0 4px 20px var(--accent-glow);
}

.hero__cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px var(--accent-glow);
  color: #fff;
}

/* Scroll indicator */
.hero__scroll {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--text-light);
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  z-index: 2;
}

.hero__scroll-line {
  width: 1px;
  height: 40px;
  background: var(--border);
  position: relative;
  overflow: hidden;
}

.hero__scroll-line::after {
  content: '';
  position: absolute;
  top: -100%;
  width: 100%;
  height: 40%;
  background: var(--accent);
  animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
  0% {
    top: -40%;
  }

  100% {
    top: 100%;
  }
}

/* --- Quick Links Cards --- */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.card {
  background: var(--glass);
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  padding: 44px 32px;
  text-align: center;
  transition: transform 0.35s cubic-bezier(0.22, 1, 0.36, 1),
    box-shadow 0.35s cubic-bezier(0.22, 1, 0.36, 1),
    border-color 0.3s;
  text-decoration: none;
  display: block;
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: linear-gradient(135deg, rgba(14, 165, 233, 0.04), rgba(139, 92, 246, 0.04));
  opacity: 0;
  transition: opacity 0.35s;
}

.card:hover::before {
  opacity: 1;
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg), var(--shadow-glow);
  border-color: rgba(14, 165, 233, 0.3);
}

.card__icon {
  width: 52px;
  height: 52px;
  margin: 0 auto 20px;
  color: var(--accent);
  background: var(--accent-light);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 12px;
}

.card__title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text);
}

.card__desc {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* --- Web Services --- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
  margin-top: 16px;
}

.service-card {
  background: var(--glass);
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  padding: 48px 40px;
  text-align: center;
  transition: transform 0.35s cubic-bezier(0.22, 1, 0.36, 1), box-shadow 0.35s;
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.service-card__logo {
  max-width: 280px;
  max-height: 100px;
  margin: 0 auto 24px;
  object-fit: contain;
  border-radius: var(--radius);
}

.service-card__name {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.service-card__name a {
  color: var(--text);
  text-decoration: none;
  transition: color 0.2s;
}

.service-card__name a:hover {
  color: var(--accent);
}

/* --- Research Areas --- */
.research-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.research-item {
  display: flex;
  align-items: flex-start;
  gap: 18px;
  padding: 28px;
  background: var(--glass);
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  transition: transform 0.3s cubic-bezier(0.22, 1, 0.36, 1),
    box-shadow 0.3s, border-color 0.3s;
}

.research-item:hover {
  border-color: rgba(14, 165, 233, 0.3);
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

.research-item__icon {
  flex-shrink: 0;
  width: 46px;
  height: 46px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--accent-light), rgba(139, 92, 246, 0.08));
  color: var(--accent);
  border-radius: 12px;
}

.research-item__icon svg {
  width: 22px;
  height: 22px;
}

.research-item__title {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 1.05rem;
  color: var(--text);
  padding-top: 10px;
}

/* --- About / EMMSB --- */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}

.about-block {
  background: var(--glass);
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  padding: 40px;
}

.about-block h3 {
  margin-bottom: 16px;
}

.about-block p {
  font-size: 0.95rem;
  line-height: 1.8;
  color: var(--text-muted);
  max-width: 100%;
}

.about-block strong {
  color: var(--text);
}

.counter-box {
  display: inline-flex;
  align-items: center;
  gap: 16px;
  margin-top: 28px;
  padding: 18px 24px;
  background: linear-gradient(135deg, var(--accent-light), rgba(14, 165, 233, 0.05));
  border-radius: var(--radius);
  border: 1px solid rgba(14, 165, 233, 0.15);
}

.counter-box__number {
  font-family: var(--font-display);
  font-size: 2.6rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--accent), var(--violet));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
}

.counter-box__label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent);
}

/* --- Contact --- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: start;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 20px;
  background: var(--glass);
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  transition: border-color 0.3s;
}

.contact-item:hover {
  border-color: rgba(14, 165, 233, 0.3);
}

.contact-item__icon {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent-light);
  color: var(--accent);
  border-radius: 10px;
}

.contact-item__icon svg {
  width: 18px;
  height: 18px;
}

.contact-item__text {
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 1.6;
}

.contact-item__text strong {
  color: var(--text);
  display: block;
  margin-bottom: 2px;
  font-weight: 600;
}

#map {
  width: 100%;
  height: 380px;
  border-radius: var(--radius-xl);
  border: 1px solid var(--glass-border);
  overflow: hidden;
  box-shadow: var(--shadow);
}

/* --- Footer --- */
.footer {
  padding: 40px 0;
  border-top: 1px solid var(--border);
  text-align: center;
}

.footer p {
  font-size: 0.85rem;
  color: var(--text-light);
  margin: 0 auto;
}

.footer a {
  color: var(--accent);
}

.footer__links {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin-bottom: 16px;
  list-style: none;
}

.footer__links a {
  color: var(--text-muted);
  transition: color 0.2s;
}

.footer__links a:hover {
  color: var(--accent);
}

.footer__links svg {
  width: 20px;
  height: 20px;
}

/* ============================================================
   PEOPLE PAGE
   ============================================================ */

.page-header {
  padding: calc(var(--nav-h) + 60px) 0 40px;
  text-align: center;
  position: relative;
  /* Gradient mesh for page headers */
  background:
    radial-gradient(ellipse at 30% 0%, rgba(14, 165, 233, 0.08) 0%, transparent 50%),
    radial-gradient(ellipse at 70% 100%, rgba(139, 92, 246, 0.06) 0%, transparent 50%),
    var(--bg);
}

.page-header .section-subtitle {
  margin: 0 auto;
}

/* Category pills */
.category-pills {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
  margin-top: 32px;
}

.category-pill {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  padding: 8px 18px;
  border: 1.5px solid var(--border);
  border-radius: 100px;
  color: var(--text-muted);
  background: var(--glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  text-decoration: none;
  transition: all 0.25s;
  cursor: pointer;
}

.category-pill:hover,
.category-pill.active {
  border-color: var(--accent);
  color: #fff;
  background: linear-gradient(135deg, var(--accent), #38bdf8);
  box-shadow: 0 2px 12px var(--accent-glow);
}

/* People section */
.people-section {
  padding: 48px 0 24px;
}

.people-section__title {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 28px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--border);
  display: inline-block;
}

.people-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 20px;
}

.person-card {
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 22px;
  background: var(--glass);
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  transition: transform 0.3s cubic-bezier(0.22, 1, 0.36, 1),
    box-shadow 0.3s, border-color 0.3s;
}

.person-card:hover {
  border-color: rgba(14, 165, 233, 0.3);
  box-shadow: var(--shadow);
  transform: translateY(-2px);
}

.person-card__photo {
  width: 68px;
  height: 68px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
  border: 3px solid var(--glass-border);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.06);
}

.person-card__info {
  flex: 1;
  min-width: 0;
}

.person-card__name {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.98rem;
  color: var(--text);
  margin-bottom: 2px;
}

.person-card__bio {
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.person-card__links {
  display: flex;
  gap: 6px;
}

.person-card__link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 8px;
  color: var(--text-light);
  background: rgba(148, 163, 184, 0.1);
  transition: color 0.2s, background 0.2s, transform 0.2s;
}

.person-card__link:hover {
  color: #fff;
  background: var(--accent);
  transform: scale(1.1);
}

.person-card__link svg {
  width: 14px;
  height: 14px;
}

/* ============================================================
   PUBLICATIONS PAGE
   ============================================================ */

/* Year filter */
.year-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  justify-content: center;
  margin-bottom: 40px;
}

.year-pill {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  padding: 6px 14px;
  border: 1.5px solid var(--border);
  border-radius: 100px;
  color: var(--text-muted);
  background: var(--glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  cursor: pointer;
  transition: all 0.25s;
}

.year-pill:hover,
.year-pill.active {
  border-color: var(--accent);
  color: #fff;
  background: linear-gradient(135deg, var(--accent), #38bdf8);
  box-shadow: 0 2px 12px var(--accent-glow);
}

/* Publication card */
.pub-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.pub-card {
  padding: 28px 32px;
  background: var(--glass);
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  transition: transform 0.3s cubic-bezier(0.22, 1, 0.36, 1),
    box-shadow 0.3s, border-color 0.3s;
}

.pub-card:hover {
  border-color: rgba(14, 165, 233, 0.3);
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

.pub-card__title {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 1.05rem;
  color: var(--text);
  margin-bottom: 6px;
  line-height: 1.5;
}

.pub-card__authors {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 12px;
  line-height: 1.5;
}

.pub-card__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

.pub-badge {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.02em;
  padding: 4px 10px;
  border-radius: 6px;
  display: inline-block;
}

.pub-badge--journal {
  background: var(--accent-light);
  color: var(--accent);
  border: 1px solid rgba(14, 165, 233, 0.12);
}

.pub-badge--year {
  background: rgba(139, 92, 246, 0.08);
  color: var(--violet);
  border: 1px solid rgba(139, 92, 246, 0.12);
}

.pub-badge--doi {
  background: none;
  color: var(--highlight);
  padding: 4px 0;
  font-size: 0.68rem;
}

.pub-badge--doi:hover {
  text-decoration: underline;
}

/* --- BibTeX Import Tool --- */
.bibtex-tool {
  margin-bottom: 48px;
}

.bibtex-toggle {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--accent);
  background: var(--glass);
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
  border: 1.5px solid rgba(14, 165, 233, 0.25);
  border-radius: var(--radius);
  padding: 10px 20px;
  cursor: pointer;
  transition: all 0.25s;
  margin-bottom: 16px;
}

.bibtex-toggle:hover {
  background: linear-gradient(135deg, var(--accent), #38bdf8);
  color: #fff;
  border-color: transparent;
  box-shadow: 0 4px 16px var(--accent-glow);
}

.bibtex-toggle svg {
  width: 16px;
  height: 16px;
}

.bibtex-panel {
  display: none;
  background: var(--glass-strong);
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  padding: 32px;
}

.bibtex-panel.open {
  display: block;
}

.bibtex-panel__label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-muted);
  margin-bottom: 12px;
  display: block;
}

.bibtex-panel textarea {
  width: 100%;
  min-height: 200px;
  padding: 16px;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  line-height: 1.6;
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.6);
  color: var(--text);
  resize: vertical;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.bibtex-panel textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.bibtex-panel textarea::placeholder {
  color: var(--text-light);
}

.bibtex-actions {
  display: flex;
  gap: 12px;
  margin-top: 16px;
}

.btn {
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  padding: 10px 22px;
  border-radius: 10px;
  border: 1.5px solid transparent;
  cursor: pointer;
  transition: all 0.25s;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.btn--primary {
  background: linear-gradient(135deg, var(--accent), #38bdf8);
  color: #fff;
  border-color: transparent;
  box-shadow: 0 2px 12px var(--accent-glow);
}

.btn--primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 20px var(--accent-glow);
  color: #fff;
}

.btn--secondary {
  background: var(--glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  color: var(--text-muted);
  border-color: var(--border);
}

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

.bibtex-preview {
  margin-top: 24px;
  padding: 20px;
  background: rgba(255, 255, 255, 0.4);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  display: none;
}

.bibtex-preview.has-results {
  display: block;
}

.bibtex-preview__title {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent);
  margin-bottom: 16px;
}

.bibtex-preview__count {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-bottom: 12px;
}

.bibtex-preview__item {
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
  font-size: 0.875rem;
}

.bibtex-preview__item:last-child {
  border-bottom: none;
}

.bibtex-preview__item strong {
  color: var(--text);
}

/* ============================================================
   RESPONSIVE
   ============================================================ */

@media (max-width: 900px) {
  .cards-grid {
    grid-template-columns: 1fr;
  }

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

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

  .about-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .contact-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }

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

@media (max-width: 768px) {
  :root {
    --section-py: 64px;
    --nav-h: 56px;
  }

  .nav__links {
    display: none;
    position: absolute;
    top: var(--nav-h);
    left: 0;
    right: 0;
    background: rgba(240, 244, 248, 0.95);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    flex-direction: column;
    padding: 12px 20px;
    gap: 2px;
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow);
  }

  .nav__links.open {
    display: flex;
  }

  .nav__links a {
    padding: 10px 14px;
    width: 100%;
  }

  .nav__toggle {
    display: flex;
  }

  .hero {
    min-height: 85vh;
    padding-bottom: 60px;
  }

  .hero__logo {
    max-width: 280px;
  }

  .hero::before {
    width: 300px;
    height: 300px;
  }

  .hero::after {
    width: 250px;
    height: 250px;
  }

  .pub-card {
    padding: 20px;
  }

  .bibtex-panel {
    padding: 20px;
  }

  .category-pills {
    gap: 6px;
  }

  .person-card {
    padding: 18px;
  }

  .about-block {
    padding: 28px;
  }

  .container {
    padding: 0 16px;
  }

  .card {
    padding: 28px 24px;
  }
}

@media (max-width: 480px) {
  h1 {
    font-size: 2rem;
  }

  h2 {
    font-size: 1.5rem;
  }

  .cards-grid {
    gap: 14px;
  }

  .bibtex-actions {
    flex-direction: column;
  }

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

  .person-card {
    flex-direction: column;
    text-align: center;
  }

  .person-card__links {
    justify-content: center;
  }

  .about-block {
    padding: 22px;
  }
}

/* --- Leaflet overrides --- */
.leaflet-container {
  font-family: var(--font-body);
}

/* --- Print --- */
@media print {

  .nav,
  .hero__scroll,
  .footer {
    display: none;
  }

  .section {
    padding: 24px 0;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}