@import url('https://fonts.googleapis.com/css2?family=DM+Serif+Display:ital@0;1&family=Fraunces:ital,opsz,wght@0,9..144,400;0,9..144,500;0,9..144,600;1,9..144,400&family=Manrope:wght@400;500;600;700&family=IBM+Plex+Mono:wght@400;500&display=swap');

:root {
  --bg: #f8f8f2;
  --bg-soft: #ededf0;
  --text: #282a36;
  --text-secondary: #3a3d4d;
  --text-muted: #6272a4;
  --accent: #7c4ddb;
  --accent-hover: #6336c4;
  --accent-soft: rgba(124, 77, 219, 0.13);
  --link: #0c7d99;
  --link-hover: #095d73;
  --award: #a8620a;
  --award-soft: rgba(255, 184, 108, 0.22);
  --border: #e1e1d8;

  --font-display: 'Fraunces', Georgia, serif;
  --font-sans: 'Manrope', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'IBM Plex Mono', ui-monospace, 'SFMono-Regular', monospace;

  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-4xl: 6rem;

  --max-width: 760px;
  --radius: 8px;
}

[data-theme="dark"] {
  --bg: #282a36;
  --bg-soft: #21222c;
  --text: #f8f8f2;
  --text-secondary: #e2e3ee;
  --text-muted: #6272a4;
  --accent: #bd93f9;
  --accent-hover: #d4b8ff;
  --accent-soft: rgba(189, 147, 249, 0.16);
  --link: #8be9fd;
  --link-hover: #b6f1ff;
  --award: #ffb86c;
  --award-soft: rgba(255, 184, 108, 0.16);
  --border: #44475a;
}

::selection {
  background: var(--accent-soft);
  color: var(--text);
}

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

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  font-size: 1.0625rem;
  line-height: 1.7;
  color: var(--text-secondary);
  background-color: var(--bg);
  transition: background-color 0.2s ease, color 0.2s ease;
}

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

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

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

.about-content p a {
  border-bottom: 1px solid var(--accent-soft);
  transition: border-color 0.15s ease;
}

.about-content p a:hover {
  border-bottom-color: var(--accent);
}

/* Header */
.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.75rem 0;
  margin-bottom: 2.5rem;
  position: relative;
}

.logo {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--text);
  border: 1.5px solid var(--text);
  border-radius: 6px;
  padding: 4px 8px;
}

.logo:hover {
  color: var(--bg);
  background: var(--text);
}

.nav {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.nav-link {
  font-family: var(--font-mono);
  color: var(--text-muted);
  font-size: 0.8125rem;
  font-weight: 400;
  letter-spacing: 0.02em;
  text-transform: lowercase;
}

.nav-link::before {
  content: "/ ";
  color: var(--accent);
}

.nav-link:hover {
  color: var(--text);
}

.menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  color: var(--text);
}

.menu-toggle .close-icon { display: none; }
.menu-toggle.open .menu-icon { display: none; }
.menu-toggle.open .close-icon { display: block; }

.theme-toggle {
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.4rem;
  color: var(--text-muted);
  transition: color 0.2s ease;
  display: flex;
  align-items: center;
}

.theme-toggle:hover {
  color: var(--accent);
}

[data-theme="light"] .sun-icon { display: none; }
[data-theme="dark"] .moon-icon { display: none; }
[data-theme="light"] .moon-icon { display: block; }
[data-theme="dark"] .sun-icon { display: block; }

/* Hero / About */
.about-section {
  display: flex;
  gap: var(--space-2xl);
  align-items: flex-start;
  margin-bottom: var(--space-4xl);
}

.about-content {
  flex: 1;
}

.hero-name {
  font-family: 'DM Serif Display', Georgia, serif;
  font-weight: 400;
  font-size: clamp(2.7rem, 7vw, 3.6rem);
  line-height: 1.05;
  letter-spacing: -0.01em;
  color: var(--text);
}

.hero-tagline {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  letter-spacing: 0.04em;
  color: var(--accent);
  margin: 0.6rem 0 1.6rem;
}

.about-content p {
  margin-bottom: var(--space-md);
}

.about-content p:last-of-type {
  margin-bottom: 0;
}

.about-image {
  flex-shrink: 0;
}

.profile-image {
  width: 118px;
  height: 118px;
  border-radius: 50%;
  object-fit: cover;
  border: 1px solid var(--border);
  filter: grayscale(0.15);
  transition: filter 0.3s ease;
}

.profile-image:hover {
  filter: grayscale(0);
}

.about-links {
  display: flex;
  gap: var(--space-sm);
  margin-top: var(--space-xl);
  flex-wrap: wrap;
}

.about-link {
  font-family: var(--font-sans);
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 7px 13px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: all 0.15s ease;
}

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

/* Section */
.section-title {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--text);
  margin-bottom: var(--space-xl);
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.section-title::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--border);
}

/* Publications */
.publications-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-xl);
}

.publication-item {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: var(--space-xl);
  padding-bottom: var(--space-xl);
  border-bottom: 1px solid var(--border);
}

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

.publication-thumbnail {
  width: 140px;
  height: 100px;
  object-fit: cover;
  border-radius: var(--radius);
  background: var(--bg-soft);
  border: 1px solid var(--border);
  transition: transform 0.25s ease;
}

a.publication-thumbnail:hover {
  transform: translateY(-2px);
}

.publication-thumbnail--contain {
  object-fit: contain;
  background: #120b10;
}

.publication-content h3 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 4px;
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--text);
}

.publication-content h3 a {
  color: var(--text);
}

.publication-content h3 a:hover {
  color: var(--accent);
}

.publication-authors {
  font-family: var(--font-sans);
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.publication-authors .highlight {
  color: var(--text);
  font-weight: 600;
}

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

.publication-venue {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--accent);
  padding: 3px 8px;
  background: var(--accent-soft);
  border-radius: 4px;
}

.publication-award {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--award);
  padding: 3px 8px;
  background: var(--award-soft);
  border-radius: 4px;
}

.meta-separator {
  color: var(--border);
}

.publication-link {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--link);
}

.publication-link:hover {
  color: var(--link-hover);
  text-decoration: underline;
}

.footer-spacer {
  height: 6rem;
}

@media (max-width: 600px) {
  .menu-toggle {
    display: flex;
  }

  .nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: flex-start;
    background: var(--bg);
    padding: 1.25rem;
    gap: 1rem;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    z-index: 100;
  }

  .nav.open {
    display: flex;
  }

  .about-section {
    flex-direction: column-reverse;
    align-items: flex-start;
    gap: var(--space-lg);
  }

  .publication-item {
    grid-template-columns: 90px 1fr;
    gap: var(--space-md);
  }

  .publication-thumbnail {
    width: 90px;
    height: 68px;
  }

  .publication-content h3 {
    font-size: 1.08rem;
  }
}