:root {
  --bg: #f8fafc;
  --bg-gradient: radial-gradient(circle at 50% 0%, #ffffff 0%, #f1f5f9 100%);
  --surface: #ffffff;
  --surface-hover: #f8fafc;
  --border: #e2e8f0;
  --border-hover: #cbd5e1;
  --text: #0f172a;
  --text-secondary: #475569;
  --text-muted: #64748b;
  --accent: #2563eb;
  --accent-soft: rgba(37, 99, 235, 0.08);
  --accent-hover: #1d4ed8;
  --cyan: #0891b2;
  --emerald: #059669;
  --amber: #d97706;
  --rose: #e11d48;
  --purple: #7c3aed;
  --radius: 12px;
  --radius-lg: 18px;
  --radius-full: 999px;
  --shadow: 0 4px 12px rgba(15, 23, 42, 0.04);
  --shadow-lg: 0 12px 32px rgba(15, 23, 42, 0.08);
  --transition: 200ms ease;
  --max-w: 1300px;
  --header-h: 68px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  background-image: var(--bg-gradient);
  background-attachment: fixed;
  color: var(--text);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

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

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

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

.container {
  width: min(var(--max-w), 92vw);
  margin: 0 auto;
}

/* ─── Header ─── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(16px) saturate(1.8);
  -webkit-backdrop-filter: blur(16px) saturate(1.8);
  border-bottom: 1px solid rgba(226, 232, 240, 0.8);
  height: var(--header-h);
  box-shadow: 0 1px 3px rgba(15, 23, 42, 0.02);
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: var(--header-h);
}

.nav-brand {
  font-weight: 800;
  font-size: 1.15rem;
  color: var(--text);
  letter-spacing: -0.4px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.nav-links a {
  color: var(--text-secondary);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.45rem 0.85rem;
  border-radius: var(--radius);
  transition: all var(--transition);
}

.nav-links a:hover {
  color: var(--text);
  background: var(--accent-soft);
}

.nav-links a[aria-current="page"] {
  color: var(--accent);
  background: var(--accent-soft);
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text);
  cursor: pointer;
  padding: 0.4rem;
}

.nav-toggle svg {
  width: 24px;
  height: 24px;
}

/* ─── Layout Grid (Two-Column Architecture) ─── */
main {
  padding: 2.5rem 0 4rem;
}

.main-grid {
  display: grid;
  grid-template-columns: 260px 1fr 320px;
  gap: 2.5rem;
  align-items: start;
}

.main-content {
  min-width: 0;
}

.sidebar-left {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.sidebar-column {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

/* ─── Sections ─── */
.section {
  margin-bottom: 3rem;
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 1.2rem;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.section-header h2 {
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -0.5px;
  color: var(--text);
}

.section-link {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
}

.section-link:hover {
  gap: 0.5rem;
}

/* ─── Cards ─── */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.8rem;
  box-shadow: var(--shadow);
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
}

.card:hover {
  transform: translateY(-2px);
  border-color: var(--border-hover);
  box-shadow: var(--shadow-lg);
}

/* ─── Hero ─── */
.hero {
  display: flex;
  gap: 2.5rem;
  align-items: flex-start;
  padding: 2.5rem;
  margin-bottom: 3rem;
  background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
}

.hero-photo-wrap {
  flex-shrink: 0;
  position: relative;
}

.hero-photo-ring {
  width: 175px;
  height: 175px;
  border-radius: var(--radius-lg);
  padding: 4px;
  background: linear-gradient(135deg, var(--accent) 0%, var(--cyan) 50%, var(--emerald) 100%);
  box-shadow: var(--shadow-lg);
}

.hero-photo {
  width: 100%;
  height: 100%;
  border-radius: calc(var(--radius-lg) - 3px);
  object-fit: cover;
  display: block;
  background: var(--surface);
}

.hero-content {
  flex: 1;
  min-width: 0;
}

.hero-name {
  font-size: 2.8rem;
  font-weight: 800;
  letter-spacing: -1.2px;
  line-height: 1.15;
  color: var(--text);
  margin-bottom: 0.3rem;
}

.hero-title {
  font-size: 1.15rem;
  color: var(--accent);
  margin-bottom: 0.8rem;
  font-weight: 600;
  letter-spacing: -0.2px;
}

.hero-affiliation {
  font-size: 0.95rem;
  color: var(--text-muted);
  margin-bottom: 1rem;
  font-weight: 500;
}

.hero-bio {
  color: var(--text-secondary);
  font-size: 1rem;
  line-height: 1.7;
  margin-bottom: 1.4rem;
}

.hero-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-bottom: 1.2rem;
}

.hero-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.45rem 1rem;
  border-radius: var(--radius-full);
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 600;
  transition: all var(--transition);
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.02);
}

.hero-link:hover {
  background: var(--accent-soft);
  border-color: rgba(37, 99, 235, 0.2);
  color: var(--accent);
  transform: translateY(-1px);
}

.hero-link svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

/* ─── Open-to badges ─── */
.open-to {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.open-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.35rem 0.9rem;
  border-radius: var(--radius-full);
  font-size: 0.82rem;
  font-weight: 700;
  background: rgba(5, 150, 105, 0.08);
  border: 1px solid rgba(5, 150, 105, 0.2);
  color: var(--emerald);
}

.open-badge::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--emerald);
  animation: pulse-dot 2s ease infinite;
}

@keyframes pulse-dot {

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

  50% {
    opacity: 0.5;
    transform: scale(0.8);
  }
}

/* ─── Pill tags ─── */
.pills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.pill {
  display: inline-block;
  padding: 0.35rem 0.85rem;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 600;
  background: var(--surface);
  color: var(--text-secondary);
  border: 1px solid var(--border);
  transition: all var(--transition);
}

.pill:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-soft);
}

/* ─── About Me (Captioned Photos) ─── */
.about-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
  margin-top: 1rem;
}

.about-photo-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: all var(--transition);
}

.about-photo-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.about-photo-card img {
  width: 100%;
  height: 180px;
  object-fit: cover;
  border-bottom: 1px solid var(--border);
  cursor: pointer;
}

.about-photo-card figcaption {
  padding: 1.2rem;
}

.about-photo-title {
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--text);
  margin-bottom: 0.3rem;
}

.about-photo-caption {
  color: var(--text-secondary);
  font-size: 0.88rem;
  line-height: 1.5;
}

/* ─── Highlighted works grid ─── */
.highlights-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}

.highlight-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
}

.highlight-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}

.highlight-card img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-bottom: 1px solid var(--border);
}

.highlight-card .hl-body {
  padding: 1.4rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.highlight-card .concept-tag {
  align-self: flex-start;
  font-size: 0.75rem;
  font-weight: 800;
  color: var(--accent);
  background: var(--accent-soft);
  border: 1px solid rgba(37, 99, 235, 0.15);
  border-radius: var(--radius-full);
  padding: 0.2rem 0.7rem;
  margin-bottom: 0.6rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.highlight-card .hl-title {
  font-weight: 800;
  font-size: 1.05rem;
  color: var(--text);
  margin-bottom: 0.4rem;
  line-height: 1.35;
}

.highlight-card .hl-desc {
  color: var(--text-secondary);
  font-size: 0.92rem;
  line-height: 1.5;
}

/* ─── Publication list ─── */
.pub-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.pub-item {
  display: flex;
  gap: 1.4rem;
  align-items: flex-start;
  padding: 1.5rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  transition: all var(--transition);
}

.pub-item:hover {
  border-color: var(--border-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.pub-thumb {
  width: 120px;
  height: 120px;
  object-fit: cover;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  flex-shrink: 0;
  background: #f1f5f9;
}

.pub-content {
  flex: 1;
  min-width: 0;
}

.pub-year-group {
  margin-bottom: 2.5rem;
}

.pub-year-label {
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--accent);
  margin-bottom: 1rem;
  padding-bottom: 0.4rem;
  border-bottom: 2px solid var(--accent-soft);
}

.pub-title {
  font-weight: 800;
  font-size: 1.08rem;
  color: var(--text);
  margin-bottom: 0.35rem;
  line-height: 1.4;
}

.pub-authors {
  color: var(--text-secondary);
  font-size: 0.92rem;
  margin-bottom: 0.4rem;
}

.pub-authors .me {
  font-weight: 700;
  color: var(--accent);
}

.pub-venue {
  font-weight: 600;
  color: var(--text-muted);
  font-size: 0.88rem;
  margin-bottom: 0.5rem;
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
}

.pub-desc {
  color: var(--text-secondary);
  font-size: 0.92rem;
  line-height: 1.55;
  margin-bottom: 0.8rem;
}

.pub-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
}

.pub-tag {
  display: inline-block;
  padding: 0.2rem 0.65rem;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  background: #f1f5f9;
  color: var(--text-secondary);
  border: 1px solid var(--border);
}

.pub-tag--oral {
  background: rgba(5, 150, 105, 0.08);
  color: var(--emerald);
  border-color: rgba(5, 150, 105, 0.2);
}

.pub-tag--under-review {
  background: rgba(217, 119, 6, 0.08);
  color: var(--amber);
  border-color: rgba(217, 119, 6, 0.2);
}

.pub-tag--first-author {
  background: var(--accent-soft);
  color: var(--accent);
  border-color: rgba(37, 99, 235, 0.2);
}

.pub-tag--equal-contribution {
  background: rgba(124, 58, 237, 0.08);
  color: var(--purple);
  border-color: rgba(124, 58, 237, 0.2);
}

.pub-tag--workshop {
  background: rgba(225, 29, 72, 0.08);
  color: var(--rose);
  border-color: rgba(225, 29, 72, 0.2);
}

.pub-tag--journal {
  background: rgba(8, 145, 178, 0.08);
  color: var(--cyan);
  border-color: rgba(8, 145, 178, 0.2);
}

.pub-links {
  display: inline-flex;
  gap: 0.6rem;
  margin-left: auto;
}

.pub-link {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.2rem 0.5rem;
  border-radius: 6px;
  transition: background var(--transition);
}

.pub-link:hover {
  background: var(--accent-soft);
}

/* Tab/Button to get to publications page */
.pub-page-tab {
  display: flex;
  justify-content: center;
  margin-top: 2rem;
}

.pub-tab-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.8rem 2rem;
  border-radius: var(--radius-full);
  background: var(--accent);
  color: #ffffff;
  font-weight: 700;
  font-size: 1rem;
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.25);
  transition: all var(--transition);
}

.pub-tab-btn:hover {
  background: var(--accent-hover);
  color: #ffffff;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(37, 99, 235, 0.35);
}

/* Pub filters */
.pub-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 2rem;
}

.pub-filter {
  padding: 0.45rem 1.1rem;
  border-radius: var(--radius-full);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  transition: all var(--transition);
  box-shadow: var(--shadow);
}

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

.pub-filter.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.2);
}

/* ─── Timeline (News & Updates) ─── */
.timeline {
  list-style: none;
  position: relative;
  padding-left: 1.8rem;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 0.5rem;
  bottom: 0.5rem;
  width: 2px;
  background: var(--border);
}

.timeline li {
  position: relative;
  padding: 0.8rem 0 0.8rem 1rem;
  border-bottom: 1px solid rgba(226, 232, 240, 0.5);
}

.timeline li:last-child {
  border-bottom: none;
}

.timeline li::before {
  content: "";
  position: absolute;
  left: -1.8rem;
  top: 1.1rem;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--accent);
  border: 3px solid var(--surface);
  box-shadow: 0 0 0 1px var(--border);
}

.timeline-date {
  font-size: 0.82rem;
  color: var(--accent);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  display: block;
  margin-bottom: 0.2rem;
}

.timeline-title {
  font-weight: 700;
  font-size: 0.98rem;
  color: var(--text);
  display: block;
  margin-bottom: 0.2rem;
}

.timeline-detail {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.5;
}

/* ─── Sidebar Lists (Experience & Education stacked with logos) ─── */
.sidebar-section {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: var(--shadow);
}

.sidebar-section-title {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--text);
  margin-bottom: 1.2rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--border);
}

.side-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
}

.side-item {
  display: flex;
  gap: 0.8rem;
  align-items: flex-start;
  padding-bottom: 1.2rem;
  border-bottom: 1px solid rgba(226, 232, 240, 0.6);
}

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

.side-logo {
  width: 38px;
  height: 38px;
  border-radius: 8px;
  object-fit: contain;
  border: 1px solid var(--border);
  background: #ffffff;
  padding: 2px;
  flex-shrink: 0;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
}

.side-details {
  flex: 1;
  min-width: 0;
}

.side-role {
  font-weight: 700;
  font-size: 0.92rem;
  color: var(--text);
  line-height: 1.3;
  margin-bottom: 0.15rem;
}

.side-org {
  font-weight: 600;
  font-size: 0.85rem;
  color: var(--accent);
  margin-bottom: 0.2rem;
}

.side-period {
  color: var(--text-muted);
  font-size: 0.78rem;
  font-weight: 500;
}

.side-focus {
  color: var(--text-secondary);
  font-size: 0.82rem;
  margin-top: 0.3rem;
  line-height: 1.4;
}

/* ─── Contact CTA ─── */
.cta-section {
  text-align: center;
  padding: 3.5rem 2rem;
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.05) 0%, rgba(5, 150, 105, 0.03) 100%);
  border: 1px solid rgba(37, 99, 235, 0.15);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}

.cta-heading {
  font-size: 1.8rem;
  font-weight: 800;
  margin-bottom: 0.5rem;
  color: var(--text);
  letter-spacing: -0.5px;
}

.cta-sub {
  color: var(--text-secondary);
  font-size: 1rem;
  margin-bottom: 1.5rem;
  max-width: 550px;
  margin-left: auto;
  margin-right: auto;
}

.cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.8rem 2rem;
  border-radius: var(--radius-full);
  background: var(--accent);
  color: #fff;
  font-weight: 700;
  font-size: 1rem;
  transition: all var(--transition);
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.25);
}

.cta-btn:hover {
  background: var(--accent-hover);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(37, 99, 235, 0.35);
}

/* ─── Footer ─── */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 2.5rem 0;
  background: var(--surface);
  margin-top: 2rem;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-text {
  color: var(--text-muted);
  font-size: 0.9rem;
  font-weight: 500;
}

.footer-links {
  display: flex;
  gap: 1.2rem;
}

.footer-links a {
  color: var(--text-muted);
  font-size: 0.9rem;
  font-weight: 600;
}

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

/* ─── Lightbox ─── */
.lightbox {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: rgba(15, 23, 42, 0.85);
  backdrop-filter: blur(12px);
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

.lightbox.open {
  display: flex;
}

.lightbox img {
  max-width: 90vw;
  max-height: 88vh;
  border-radius: var(--radius-lg);
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.4);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.lightbox-close {
  position: absolute;
  top: 1.5rem;
  right: 2rem;
  background: rgba(255, 255, 255, 0.1);
  border: none;
  color: #fff;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  font-size: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition);
}

.lightbox-close:hover {
  background: rgba(255, 255, 255, 0.25);
  transform: scale(1.05);
}

/* ─── Scroll reveal ─── */
.reveal-on-scroll {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* ─── Responsive ─── */
@media (max-width: 1100px) {
  .main-grid {
    display: flex;
    flex-direction: column;
    gap: 3rem;
  }

  .main-content {
    order: 1;
    width: 100%;
  }

  .sidebar-left {
    order: 2;
    width: 100%;
  }

  .sidebar-column {
    order: 3;
    width: 100%;
  }

  .sidebar-column,
  .sidebar-left {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
  }
}

@media (max-width: 768px) {
  .hero {
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 1.5rem;
    padding: 1.8rem;
  }

  .hero-photo-ring {
    width: 140px;
    height: 140px;
  }

  .hero-name {
    font-size: 2.2rem;
  }

  .hero-links {
    justify-content: center;
  }

  .open-to {
    justify-content: center;
  }

  .nav-links {
    display: none;
    flex-direction: column;
    position: absolute;
    top: var(--header-h);
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(16px);
    padding: 1.5rem;
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-lg);
    gap: 0.5rem;
  }

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

  .nav-links a {
    padding: 0.8rem 1rem;
    width: 100%;
    text-align: center;
    font-size: 1.05rem;
  }

  .nav-toggle {
    display: block;
  }

  .pub-item {
    flex-direction: column;
    gap: 1rem;
    align-items: stretch;
  }

  .pub-thumb {
    width: 100%;
    height: 160px;
  }

  .pub-links {
    margin-left: 0;
    justify-content: flex-start;
    flex-wrap: wrap;
  }

  .footer-inner {
    flex-direction: column;
    text-align: center;
    gap: 1.2rem;
  }

  .sidebar-column {
    grid-template-columns: 1fr;
  }
}