@import url('https://fonts.googleapis.com/css2?family=Syne:wght@400;600;700;800&family=Plus+Jakarta+Sans:ital,wght@0,300;0,400;0,500;0,600;0,700;1,400&display=swap');

*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --bg-primary: #07070a;
  --bg-secondary: #0e0e12;
  --bg-elevated: #151519;
  --bg-card: #1a1a1f;
  --bg-card-hover: #202026;
  --border: #27272e;
  --border-light: #35353d;

  --text-primary: #f0f0f2;
  --text-secondary: #a0a0aa;
  --text-muted: #6a6a75;

  --accent: #f59e0b;
  --accent-light: #fbbf24;
  --accent-dim: rgba(245, 158, 11, 0.12);
  --accent-glow: rgba(245, 158, 11, 0.25);

  --conference: #3b82f6;
  --journal: #8b5cf6;
  --preprint: #6b7280;

  --font-display: 'Syne', sans-serif;
  --font-body: 'Plus Jakarta Sans', sans-serif;

  --nav-height: 64px;
  --max-width: 1120px;
  --section-padding: 120px;
}

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

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

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

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

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

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* ============================================
   NAVIGATION
   ============================================ */

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  z-index: 1000;
  background: rgba(7, 7, 10, 0.8);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s, background 0.3s;
}

.nav.scrolled {
  border-bottom-color: var(--border);
  background: rgba(7, 7, 10, 0.95);
}

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

.nav-logo {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.2rem;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

.nav-logo span {
  color: var(--accent);
}

.nav-links {
  display: flex;
  gap: 32px;
  list-style: none;
}

.nav-links a {
  color: var(--text-secondary);
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  transition: color 0.2s;
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent);
  transition: width 0.3s;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--text-primary);
}

.nav-links a:hover::after,
.nav-links a.active::after {
  width: 100%;
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 4px;
}

/* ============================================
   HERO SECTION
   ============================================ */

.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding-top: var(--nav-height);
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-bg::before {
  content: '';
  position: absolute;
  top: -40%;
  right: -20%;
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
  opacity: 0.3;
  animation: float 20s ease-in-out infinite;
}

.hero-bg::after {
  content: '';
  position: absolute;
  bottom: -20%;
  left: -10%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(59, 130, 246, 0.1) 0%, transparent 70%);
  opacity: 0.4;
  animation: float 25s ease-in-out infinite reverse;
}

@keyframes float {
  0%, 100% { transform: translate(0, 0); }
  33% { transform: translate(30px, -30px); }
  66% { transform: translate(-20px, 20px); }
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
  min-height: calc(100vh - var(--nav-height));
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 720px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: var(--accent-dim);
  border: 1px solid rgba(245, 158, 11, 0.2);
  border-radius: 100px;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--accent);
  margin-bottom: 24px;
}

.hero-badge .dot {
  width: 6px;
  height: 6px;
  background: var(--accent);
  border-radius: 50%;
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(3rem, 7vw, 5.5rem);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin-bottom: 20px;
}

.hero h1 .accent {
  color: var(--accent);
}

.hero-role {
  font-size: 1.25rem;
  color: var(--text-secondary);
  margin-bottom: 12px;
  font-weight: 400;
}

.hero-role strong {
  color: var(--accent);
  font-weight: 600;
}

.hero-bio {
  font-size: 1.05rem;
  color: var(--text-muted);
  line-height: 1.8;
  margin-bottom: 36px;
  max-width: 560px;
}

.hero-socials {
  display: flex;
  gap: 12px;
}

.hero-socials a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--bg-elevated);
  color: var(--text-secondary);
  font-size: 1.1rem;
  transition: all 0.25s;
}

.hero-socials a:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-dim);
  transform: translateY(-2px);
}

.scroll-indicator {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--text-muted);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  animation: fadeInUp 1s 1.5s both;
}

.scroll-indicator .line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, var(--accent), transparent);
  animation: scrollLine 2s ease-in-out infinite;
}

@keyframes scrollLine {
  0% { transform: scaleY(0); transform-origin: top; }
  50% { transform: scaleY(1); transform-origin: top; }
  51% { transform: scaleY(1); transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

/* ============================================
   HERO 3D VIEWER
   ============================================ */

.hero-viewer {
  position: relative;
  width: 100%;
  aspect-ratio: 1;
  max-height: 70vh;
  border-radius: 24px;
  overflow: hidden;
  z-index: 1;
}

.hero-viewer canvas {
  display: block;
  width: 100% !important;
  height: 100% !important;
  border-radius: 24px;
}

.hero-viewer-loader {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-elevated);
  border-radius: 24px;
  border: 1px solid var(--border);
  transition: opacity 0.6s;
  z-index: 2;
}

.hero-viewer-loader.hidden {
  opacity: 0;
  pointer-events: none;
}

.loader-spinner {
  width: 36px;
  height: 36px;
  border: 3px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ============================================
   SECTION COMMON
   ============================================ */

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

.section-header {
  margin-bottom: 60px;
}

.section-label {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 12px;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

.section-subtitle {
  color: var(--text-secondary);
  font-size: 1.05rem;
  margin-top: 12px;
  max-width: 540px;
}

.section-divider {
  width: 48px;
  height: 3px;
  background: var(--accent);
  border-radius: 2px;
  margin-top: 20px;
}

/* ============================================
   ABOUT SECTION
   ============================================ */

.about {
  background: var(--bg-secondary);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  margin-top: 48px;
}

.about-text {
  color: var(--text-secondary);
  font-size: 1.05rem;
  line-height: 1.85;
  margin-bottom: 40px;
}

.about-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 32px;
  transition: border-color 0.3s, transform 0.3s;
}

.about-card:hover {
  border-color: var(--border-light);
  transform: translateY(-2px);
}

.about-card-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: var(--accent-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  font-size: 1.2rem;
  margin-bottom: 20px;
}

.about-card h3 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 20px;
}

.education-item {
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
}

.education-item:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.education-item .degree {
  font-weight: 500;
  color: var(--text-primary);
  font-size: 0.95rem;
}

.education-item .institution {
  color: var(--text-muted);
  font-size: 0.85rem;
  margin-top: 2px;
}

.education-item .year {
  color: var(--accent);
  font-size: 0.8rem;
  font-weight: 600;
  margin-top: 4px;
}

.interests-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.interest-tag {
  padding: 8px 18px;
  border-radius: 100px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  font-size: 0.875rem;
  font-weight: 500;
  transition: all 0.25s;
}

.interest-tag:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-dim);
}

/* ============================================
   PUBLICATIONS SECTION
   ============================================ */

.publications-filter {
  display: flex;
  gap: 8px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}

.filter-btn {
  padding: 8px 20px;
  border-radius: 100px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-secondary);
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.25s;
}

.filter-btn:hover {
  border-color: var(--border-light);
  color: var(--text-primary);
}

.filter-btn.active {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--bg-primary);
}

.publications-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.pub-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 28px 32px;
  transition: all 0.3s;
  animation: fadeInUp 0.4s both;
}

.pub-card:hover {
  border-color: var(--border-light);
  background: var(--bg-card-hover);
  transform: translateX(4px);
}

.pub-card-header {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin-bottom: 10px;
}

.pub-type {
  display: inline-flex;
  padding: 3px 10px;
  border-radius: 6px;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  white-space: nowrap;
  flex-shrink: 0;
  margin-top: 3px;
}

.pub-type.conference {
  background: rgba(59, 130, 246, 0.15);
  color: var(--conference);
}

.pub-type.journal {
  background: rgba(139, 92, 246, 0.15);
  color: var(--journal);
}

.pub-type.preprint {
  background: rgba(107, 114, 128, 0.15);
  color: var(--preprint);
}

.pub-title {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 600;
  line-height: 1.4;
  color: var(--text-primary);
}

.pub-authors {
  color: var(--text-muted);
  font-size: 0.875rem;
  margin-bottom: 6px;
  line-height: 1.6;
}

.pub-authors .me {
  color: var(--accent);
  font-weight: 600;
}

.pub-venue {
  color: var(--text-secondary);
  font-size: 0.875rem;
  font-style: italic;
}

.pub-year {
  color: var(--text-muted);
  font-size: 0.85rem;
  font-weight: 500;
}

.pub-links {
  display: flex;
  gap: 10px;
  margin-top: 14px;
  flex-wrap: wrap;
}

.pub-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 14px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--bg-elevated);
  color: var(--text-secondary);
  font-size: 0.78rem;
  font-weight: 500;
  transition: all 0.2s;
  cursor: pointer;
}

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

.pub-featured {
  border-left: 3px solid var(--accent);
}

/* BibTeX modal */
.bibtex-modal {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 2000;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(8px);
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.bibtex-modal.active {
  display: flex;
}

.bibtex-content {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 32px;
  max-width: 640px;
  width: 100%;
  max-height: 80vh;
  overflow-y: auto;
  position: relative;
}

.bibtex-content h3 {
  font-family: var(--font-display);
  font-size: 1.1rem;
  margin-bottom: 16px;
}

.bibtex-content pre {
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 20px;
  font-size: 0.85rem;
  line-height: 1.6;
  overflow-x: auto;
  color: var(--text-secondary);
  font-family: 'SF Mono', 'Fira Code', monospace;
}

.bibtex-close {
  position: absolute;
  top: 16px;
  right: 16px;
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 1.5rem;
  cursor: pointer;
  transition: color 0.2s;
  line-height: 1;
}

.bibtex-close:hover {
  color: var(--text-primary);
}

.bibtex-copy {
  margin-top: 12px;
  padding: 8px 20px;
  border-radius: 8px;
  border: 1px solid var(--accent);
  background: transparent;
  color: var(--accent);
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
}

.bibtex-copy:hover {
  background: var(--accent);
  color: var(--bg-primary);
}

/* ============================================
   BLOG SECTION (HOME TEASER)
   ============================================ */

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

.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 24px;
}

.blog-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 32px;
  transition: all 0.3s;
  display: flex;
  flex-direction: column;
}

.blog-card:hover {
  border-color: var(--border-light);
  transform: translateY(-4px);
}

.blog-card-date {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-weight: 500;
  margin-bottom: 12px;
}

.blog-card-title {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--text-primary);
  line-height: 1.4;
}

.blog-card-excerpt {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.7;
  flex-grow: 1;
  margin-bottom: 16px;
}

.blog-card-tags {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.blog-tag {
  font-size: 0.75rem;
  padding: 3px 10px;
  border-radius: 6px;
  background: var(--accent-dim);
  color: var(--accent);
  font-weight: 500;
}

.blog-empty {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-muted);
}

.blog-empty i {
  font-size: 2.5rem;
  margin-bottom: 16px;
  display: block;
  color: var(--border-light);
}

.blog-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 40px;
  padding: 12px 28px;
  border-radius: 12px;
  background: var(--accent);
  color: var(--bg-primary);
  font-weight: 600;
  font-size: 0.9rem;
  transition: all 0.25s;
}

.blog-cta:hover {
  background: var(--accent-light);
  color: var(--bg-primary);
  transform: translateY(-2px);
}

/* ============================================
   FOOTER / CONTACT
   ============================================ */

.footer {
  padding: 80px 0 40px;
  border-top: 1px solid var(--border);
}

.footer-grid {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 40px;
  margin-bottom: 60px;
}

.footer-info h3 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.footer-info p {
  color: var(--text-secondary);
  max-width: 400px;
  font-size: 0.95rem;
  line-height: 1.7;
}

.footer-socials {
  display: flex;
  gap: 12px;
}

.footer-socials a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: var(--bg-elevated);
  color: var(--text-secondary);
  font-size: 1.2rem;
  transition: all 0.25s;
}

.footer-socials a:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-dim);
  transform: translateY(-3px);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 0.8rem;
}

/* ============================================
   BLOG PAGE STYLES
   ============================================ */

.blog-page-header {
  padding: calc(var(--nav-height) + 60px) 0 40px;
  background: var(--bg-secondary);
}

.blog-listing {
  padding: 60px 0 var(--section-padding);
}

.blog-listing .blog-grid {
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
}

/* ============================================
   BLOG VIEWER STYLES
   ============================================ */

.post-header {
  padding: calc(var(--nav-height) + 60px) 0 40px;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
}

.post-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.post-date {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 500;
}

.post-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.2;
  margin-bottom: 16px;
}

.post-excerpt {
  color: var(--text-secondary);
  font-size: 1.1rem;
  line-height: 1.7;
  max-width: 640px;
}

.post-content {
  padding: 60px 0 var(--section-padding);
}

.post-body {
  max-width: 720px;
  margin: 0 auto;
  font-size: 1.05rem;
  line-height: 1.9;
  color: var(--text-secondary);
}

.post-body h1,
.post-body h2,
.post-body h3,
.post-body h4 {
  font-family: var(--font-display);
  color: var(--text-primary);
  margin-top: 2.5em;
  margin-bottom: 0.8em;
  line-height: 1.3;
}

.post-body h2 { font-size: 1.6rem; }
.post-body h3 { font-size: 1.3rem; }

.post-body p {
  margin-bottom: 1.5em;
}

.post-body img {
  border-radius: 12px;
  margin: 2em 0;
}

.post-body pre {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
  overflow-x: auto;
  margin: 2em 0;
  font-size: 0.9rem;
  line-height: 1.7;
}

.post-body code {
  font-family: 'SF Mono', 'Fira Code', 'Consolas', monospace;
  font-size: 0.9em;
}

.post-body :not(pre) > code {
  background: var(--bg-elevated);
  padding: 2px 8px;
  border-radius: 6px;
  border: 1px solid var(--border);
  color: var(--accent);
}

.post-body blockquote {
  border-left: 3px solid var(--accent);
  padding: 16px 24px;
  margin: 2em 0;
  background: var(--accent-dim);
  border-radius: 0 12px 12px 0;
  color: var(--text-primary);
  font-style: italic;
}

.post-body ul, .post-body ol {
  padding-left: 24px;
  margin-bottom: 1.5em;
}

.post-body li {
  margin-bottom: 0.5em;
}

.post-body a {
  text-decoration: underline;
  text-underline-offset: 3px;
}

.post-back {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--text-muted);
  font-size: 0.85rem;
  font-weight: 500;
  margin-bottom: 20px;
  transition: color 0.2s;
}

.blog-page-header .post-back,
.post-header .post-back {
  display: block;
  width: fit-content;
  margin-bottom: 20px;
}

.post-back:hover {
  color: var(--accent);
}

/* ============================================
   ANIMATIONS
   ============================================ */

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.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; }

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

@media (max-width: 768px) {
  :root {
    --section-padding: 80px;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    padding: 20px 24px;
    gap: 16px;
  }

  .nav-links.open {
    display: flex;
  }

  .nav-toggle {
    display: block;
  }

  .hero-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .hero-viewer {
    max-height: 50vh;
    order: -1;
  }

  .hero h1 {
    font-size: clamp(2.5rem, 10vw, 3.5rem);
  }

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

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

  .footer-grid {
    flex-direction: column;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 8px;
    text-align: center;
  }

  .pub-card {
    padding: 20px;
  }

  .pub-card-header {
    flex-direction: column;
    gap: 8px;
  }
}

@media (max-width: 480px) {
  .hero-socials {
    flex-wrap: wrap;
  }

  .publications-filter {
    gap: 6px;
  }

  .filter-btn {
    padding: 6px 14px;
    font-size: 0.8rem;
  }
}