:root {
  --bg: #f4f7ff;
  --surface: #ffffff;
  --text: #172138;
  --muted: #516289;
  --line: rgba(32, 56, 113, 0.15);
  --brand: #2a5bff;
  --brand-2: #00a4ff;
  --shadow: 0 12px 34px rgba(37, 66, 138, 0.12);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Inter", system-ui, -apple-system, Segoe UI, sans-serif;
}

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

.page-bg {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(680px 360px at -4% -8%, rgba(42, 91, 255, 0.22), transparent),
    radial-gradient(620px 320px at 105% -12%, rgba(0, 164, 255, 0.18), transparent);
}

.layout {
  width: min(1560px, 98vw);
  margin: 16px auto 22px;
  display: grid;
  grid-template-columns: 430px minmax(0, 1fr);
  gap: 18px;
  align-items: start;
}

.top-header {
  width: min(1560px, 98vw);
  margin: 16px auto 0;
  padding: 10px 14px;
  position: sticky;
  top: 10px;
  z-index: 50;
  backdrop-filter: blur(8px);
  background: rgba(255, 255, 255, 0.88);
}

.top-nav {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.top-nav a {
  color: var(--muted);
  font-weight: 700;
  font-size: 13px;
  border-radius: 999px;
  padding: 7px 11px;
}

.top-nav a.active {
  color: #fff;
  background: linear-gradient(135deg, var(--brand), var(--brand-2));
}

.card {
  border-radius: 18px;
  border: 1px solid var(--line);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.sidebar {
  position: sticky;
  top: 20px;
  padding: 18px;
  height: fit-content;
}

.avatar {
  width: 100%;
  height: 360px;
  object-fit: cover;
  object-position: center 28%;
  border-radius: 14px;
  display: block;
}

h1 {
  margin: 12px 0 4px;
  font-family: "Playfair Display", serif;
  font-size: 2rem;
}

.name-with-icon {
  display: flex;
  align-items: center;
  gap: 8px;
}

.name-with-icon img {
  width: 24px;
  height: 24px;
  object-fit: contain;
}

.role {
  margin: 0;
  color: #2d4fa7;
  font-size: 14px;
  font-weight: 600;
  line-height: 1.6;
}

.bio {
  margin: 12px 0;
  color: var(--muted);
  line-height: 1.68;
  font-size: 14px;
}

.quick-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.quick-links a {
  border: 1px solid #d7e4ff;
  background: #f5f8ff;
  padding: 7px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
}

.interest-tags {
  margin-top: 11px;
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}

.interest-tags span {
  border: 1px solid #d6e3ff;
  background: #eff4ff;
  color: #3757a3;
  border-radius: 999px;
  padding: 6px 10px;
  font-size: 11px;
  font-weight: 700;
}

.cta-note {
  margin: 12px 0;
  padding: 10px 12px;
  border-radius: 12px;
  background: #f2f7ff;
  color: #355399;
  font-size: 13px;
  line-height: 1.6;
}

.left-block {
  margin-top: 14px;
  border-top: 1px dashed #d6e1ff;
  padding-top: 12px;
}

.left-block h2 {
  margin: 0 0 8px;
  font-size: 0.98rem;
}

.inline-logo {
  display: inline-flex;
  width: 18px;
  height: 18px;
  vertical-align: text-bottom;
  margin-right: 6px;
}

.inline-logo img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  border-radius: 4px;
}

.left-block p {
  margin: 0;
  color: var(--muted);
  line-height: 1.65;
  font-size: 13px;
}

.content {
  display: grid;
  gap: 14px;
  align-content: start;
}

.section {
  padding: 22px;
}

.section h2 {
  margin: 0 0 14px;
  font-size: 1.38rem;
}

.title-with-icon {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.title-with-icon img {
  width: 20px;
  height: 20px;
  object-fit: contain;
}

.timeline-item + .timeline-item {
  margin-top: 8px;
  padding-top: 8px;
  border-top: 1px dashed #d6e1ff;
}

.timeline-item time {
  display: block;
  font-size: 13px;
  font-weight: 800;
  color: #3758ad;
}

.timeline-item p {
  margin: 3px 0 0;
  color: var(--muted);
  line-height: 1.5;
}

.news-line {
  display: flex;
  align-items: flex-start;
  gap: 8px;
}

.news-line img {
  width: 16px;
  height: 16px;
  object-fit: contain;
  margin-top: 2px;
}

.section-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.tab-controls { display: flex; gap: 8px; }

.tab-btn {
  border: 1px solid #d5e2ff;
  background: #f5f8ff;
  color: #3757a3;
  border-radius: 999px;
  padding: 8px 12px;
  font-weight: 700;
  cursor: pointer;
}

.tab-btn.active {
  color: #fff;
  border-color: transparent;
  background: linear-gradient(135deg, var(--brand), var(--brand-2));
}

.pub-panel { display: none; gap: 12px; }
.pub-panel.active { display: grid; }

.highlight-item {
  border: 1px solid #d8e3ff;
  border-radius: 14px;
  overflow: hidden;
  background: #fff;
  display: grid;
  grid-template-columns: 260px 1fr;
}

.highlight-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  min-height: 180px;
  display: block;
}

.highlight-body {
  padding: 14px 16px;
}

.highlight-body h3 {
  margin: 0;
  font-size: 1.08rem;
}

.highlight-body p {
  margin: 8px 0 0;
  color: var(--muted);
  line-height: 1.62;
}

.hl-tags {
  color: #2d5bcd;
  font-size: 12px;
  font-weight: 700;
}

.hl-links a {
  margin-right: 12px;
  font-size: 13px;
  font-weight: 700;
}

.pub-item + .pub-item {
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px dashed #d6e1ff;
}

.pub-item h3 {
  margin: 0;
  font-size: 1.06rem;
}

.pub-item p {
  margin: 7px 0 0;
  color: var(--muted);
  line-height: 1.64;
}

.venue {
  color: #2f53ab;
  font-weight: 700;
}

.pub-list {
  display: grid;
  gap: 12px;
}

.pub-card {
  border: 1px solid #d8e3ff;
  border-radius: 14px;
  background: #fff;
  display: grid;
  grid-template-columns: 282px 1fr;
  gap: 0;
  overflow: hidden;
}

.pub-card img {
  width: 100%;
  height: 100%;
  min-height: 154px;
  object-fit: cover;
  display: block;
  border-right: 1px solid #d8e3ff;
}

.pub-main {
  padding: 12px 14px;
}

.pub-main h3 {
  margin: 0;
  font-size: 1.06rem;
  line-height: 1.45;
}

.authors {
  margin: 6px 0 0;
  color: var(--muted);
  line-height: 1.62;
  font-size: 14px;
}

.me {
  font-weight: 800;
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 2px;
}

.pub-meta {
  margin-top: 8px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  flex-wrap: wrap;
}

.venue-badge {
  border: 1px solid #cad8ff;
  background: #f4f7ff;
  color: #2d4ea7;
  border-radius: 8px;
  padding: 4px 9px;
  font-size: 13px;
  font-weight: 800;
  white-space: nowrap;
}

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

.pub-link {
  border: 1px solid #cfdcff;
  background: #f6f9ff;
  color: #2a5bff;
  border-radius: 6px;
  padding: 2px 8px;
  font-size: 13px;
  font-weight: 700;
  text-decoration: none;
}

button.pub-link {
  cursor: pointer;
}

.pub-link.disabled {
  color: #97a4c7;
  background: #f8f9fc;
  border-color: #e2e7f5;
}

.tldr-panel {
  margin-top: 8px;
  color: #4e5f88;
  background: #f8fbff;
  border: 1px dashed #cfddff;
  border-radius: 10px;
  padding: 10px 12px;
  font-size: 13px;
  line-height: 1.66;
  display: none;
}

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

.pub-tags {
  margin-top: 8px;
  display: flex;
  gap: 7px;
  flex-wrap: wrap;
}

.pub-tags span {
  border: 1px solid #d6e3ff;
  background: #f1f6ff;
  border-radius: 999px;
  padding: 4px 10px;
  font-size: 12px;
  color: #3759a7;
  font-weight: 700;
}

.list {
  margin: 0;
  padding-left: 18px;
}

.list li {
  margin-bottom: 11px;
  color: var(--muted);
  line-height: 1.66;
  font-size: 12.6px;
}

#awards .list li {
  margin-bottom: 7px;
  line-height: 1.5;
}

.service-rows p {
  margin: 0 0 8px;
  color: var(--muted);
  line-height: 1.52;
  font-size: 12.6px;
}

.service-rows p:last-child {
  margin-bottom: 0;
}

.penn-logo {
  margin-top: 6px;
  width: 66px;
  height: auto;
}

.logo-block {
  display: grid;
  gap: 8px;
}

.mini-logo-item {
  display: flex;
  align-items: center;
  gap: 9px;
  color: inherit;
  font-size: 12px;
  color: var(--muted);
}

.mini-logo-item img {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  object-fit: cover;
  border: 1px solid #d9e3fd;
  background: #fff;
}

.mini-logo-item.playful span {
  color: #6232d9;
}

.footer p {
  margin: 0;
  color: var(--muted);
  line-height: 1.7;
}

.split2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  padding: 0;
  border: none;
  background: transparent;
  box-shadow: none;
}

.preview-tip {
  margin-top: 7px;
  font-size: 13px;
}

.preview-tip code {
  background: #eef4ff;
  border-radius: 6px;
  padding: 3px 6px;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
}

@media (max-width: 1100px) {
  .layout {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: static;
  }

  .split2 {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 780px) {
  .section {
    padding: 18px;
  }

  .highlight-item {
    grid-template-columns: 1fr;
  }

  .highlight-item img {
    min-height: 170px;
  }

  .pub-card {
    grid-template-columns: 1fr;
  }

  .pub-card img {
    min-height: 160px;
    border-right: none;
    border-bottom: 1px solid #d8e3ff;
  }
}

@media (max-width: 520px) {
  .top-nav {
    gap: 4px;
  }
}