:root {
  --accent: #860033;
  --bg: #ffffff;
  --text: #222222;
  --muted: #666666;
  --max-width: 960px;
}

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

html {
  scroll-behavior: smooth;
}

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

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

a:hover {
  text-decoration: underline;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1rem;
}

/* Header / Nav */

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(255, 255, 255, 0.97);
  border-bottom: 1px solid #eee;
  backdrop-filter: blur(6px);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.7rem 0;
}

.brand a {
  font-weight: 600;
  font-size: 1.1rem;
  color: var(--text);
}

.brand .tagline {
  display: block;
  font-size: 0.8rem;
  color: var(--muted);
}

.nav a {
  margin-left: 1rem;
  font-size: 0.9rem;
}

/* Sections */

.site-main {
  padding-bottom: 3rem;
}

.section {
  padding: 3rem 0 1rem;
}

.section h2 {
  font-size: 1.6rem;
  margin-bottom: 1.5rem;
  border-bottom: 2px solid var(--accent);
  display: inline-block;
  padding-bottom: 0.2rem;
}

/* About */

.section-about {
  padding-top: 4rem;
}

.about-grid {
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(0, 1fr);
  gap: 2.5rem;
  align-items: center;
}

.section-about p {
  line-height: 1.6;
}

.links {
  margin-top: 1rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  font-size: 0.9rem;
}

.links a {
  border-bottom: 1px solid transparent;
}

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

.profile-wrapper {
  display: flex;
  justify-content: center;
}

.profile-photo {
  width: 180px;
  height: 180px;
  border-radius: 50%;
  border: 3px solid var(--accent);
  background: #f5f5f5 center/cover no-repeat url("/img/profile.jpg");
}

/* News */

.news-list {
  display: grid;
  gap: 1rem;
}

.news-item {
  display: grid;
  grid-template-columns: 70px minmax(0, 1fr);
  gap: 0.75rem;
  font-size: 0.95rem;
}

.news-date {
  font-weight: 600;
  color: var(--accent);
}

.news-text {
  line-height: 1.5;
}

.section-actions {
  margin-top: 1.5rem;
}

/* Publications */

.pub {
  margin-bottom: 1.8rem;
}

.pub-venue {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--muted);
}

.pub-title {
  margin: 0.3rem 0 0.15rem;
  font-size: 1.05rem;
}

.pub-authors {
  font-size: 0.9rem;
  color: var(--muted);
  margin-bottom: 0.4rem;
}

.pub-tldr {
  margin: 0 0 0.4rem;
  font-size: 0.95rem;
  line-height: 1.5;
}

.pub-links a {
  margin-right: 0.8rem;
  font-size: 0.9rem;
}

/* Projects */

.project {
  margin-bottom: 1.5rem;
}

.project-title {
  margin-bottom: 0.3rem;
}

.project-tldr {
  margin: 0 0 0.3rem;
  font-size: 0.95rem;
  line-height: 1.5;
}

.project-link {
  font-size: 0.9rem;
}

/* CV */

.section-cv p {
  line-height: 1.6;
}

/* Buttons */

.btn-primary,
.btn-ghost {
  display: inline-block;
  padding: 0.45rem 0.9rem;
  border-radius: 999px;
  border: 1px solid var(--accent);
  font-size: 0.9rem;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
}

.btn-primary:hover {
  text-decoration: none;
  opacity: 0.9;
}

.btn-ghost {
  background: transparent;
  color: var(--accent);
}

.btn-ghost:hover {
  background: rgba(134, 0, 51, 0.05);
  text-decoration: none;
}

/* Footer */

.site-footer {
  border-top: 1px solid #eee;
  padding: 1rem 0 1.5rem;
  font-size: 0.85rem;
  color: var(--muted);
}

/* Responsive */

@media (max-width: 768px) {
  .nav-container {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.4rem;
  }

  .nav a {
    margin-left: 0;
    margin-right: 0.9rem;
  }

  .about-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .profile-wrapper {
    justify-content: flex-start;
  }
}