@import url('https://fonts.googleapis.com/css2?family=Raleway:wght@400;500;600&display=swap');

:root {
  --background: #ffffff;
  --text: #202124;
  --muted: #676767;
  --line: #b9b9b9;
  --link: #237fd3;
  --link-hover: #ee8d22;
  --button-bg: #fafafa;
  --button-border: #c9c9c9;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--background);
  color: var(--text);
  font-family: 'Raleway', Arial, sans-serif;
  font-size: 16px;
  line-height: 1.46;
}

.page {
  width: 100%;
  max-width: 800px;
  margin: 0 auto;
  padding: 0 20px 36px;
}

a {
  color: var(--link);
  text-decoration: none;
  transition: color 0.15s ease;
}

a:hover, a:focus { color: var(--link-hover); }

.profile-container {
  display: flex;
  align-items: center;
  gap: 30px;
  padding: 30px 0 15px;
}

.profile-photo {
  flex: 0 0 31%;
  text-align: center;
}

.profile-photo img {
  display: block;
  width: 100%;
  max-width: 200px;
  aspect-ratio: 1;
  margin: 0 auto;
  object-fit: cover;
  border-radius: 50%;
}

.social-links {
  margin-top: 12px;
  font-size: 20px;
  white-space: nowrap;
}

.social-links span {
  margin: 0 7px;
  color: var(--muted);
  font-size: 14px;
}

.profile-text { flex: 1; }

.profile-text h1 {
  margin: 0 0 22px;
  text-align: center;
  font-size: 32px;
  font-weight: 400;
}

.profile-text p { margin: 0 0 15px; }

.content-section { padding: 12px 0 8px; }

h2 {
  margin: 0;
  font-size: 22px;
  font-weight: 400;
}

hr {
  height: 1px;
  margin: 7px 0 14px;
  border: 0;
  background: var(--line);
}

.news-list p { margin: 6px 0; }
.news-date { font-weight: 600; }

.section-title-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.tabs {
  display: flex;
  gap: 7px;
}

.tab-button {
  height: 30px;
  padding: 0 13px;
  border: 1px solid var(--button-border);
  border-radius: 5px;
  background: var(--button-bg);
  color: #333;
  cursor: pointer;
  font: inherit;
  font-size: 14px;
}

.tab-button:hover { box-shadow: 0 2px 5px rgba(0, 0, 0, 0.10); }

.tab-button.active {
  border-color: var(--link);
  background: var(--link);
  color: #fff;
  font-weight: 600;
}

.publication { margin: 0 0 22px; }
.publication[hidden] { display: none; }

.publication h3 {
  margin: 0 0 5px;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.38;
}

.publication p { margin: 3px 0; }
.venue { font-weight: 600; }
.pub-links { font-size: 15px; }
.equal-contribution { margin: -7px 0 0; color: var(--muted); font-size: 13px; }

.entry,
.education-row,
.award-row {
  display: flex;
  justify-content: space-between;
  gap: 25px;
  align-items: flex-start;
  margin-bottom: 16px;
}

.entry p,
.award-row p {
  max-width: 590px;
  margin: 6px 0 0;
}

.project-entry { margin-bottom: 18px; }
.entry-date { flex-shrink: 0; text-align: right; }

footer {
  margin-top: 25px;
  color: var(--muted);
  font-size: 13px;
  text-align: center;
}

::selection { background: #fde7bd; }

@media (max-width: 768px) {
  .profile-container {
    flex-direction: column;
    gap: 20px;
    padding-top: 24px;
  }

  .profile-photo {
    width: 58%;
    max-width: 210px;
  }

  .profile-text h1 { margin-bottom: 18px; }
}

@media (max-width: 560px) {
  .page { padding: 0 16px 28px; }
  .section-title-row { flex-direction: column; align-items: flex-start; }
  .entry, .education-row, .award-row { flex-direction: column; gap: 4px; }
  .entry-date { text-align: left; color: var(--muted); }
  .tabs { width: 100%; }
  .tab-button { flex: 1; }
}

@media (prefers-color-scheme: dark) {
  :root {
    --background: #000;
    --text: #e2e2e2;
    --muted: #aaa;
    --line: #555;
    --link: #64b5f6;
    --button-bg: #171717;
    --button-border: #444;
  }
  .tab-button { color: #e2e2e2; }
  ::selection { background: #36556d; }
}