:root {
  --bg: #f9fbf9;
  --surface: #ffffff;
  --ink: #0f172a;
  --muted: #4e5a67;
  --line: #e4e9e5;
  --line-strong: #d6dfd9;
  --accent: #1b8a46;
  --focus: #8edfb0;
}

* {
  box-sizing: border-box;
}

body,
body.light {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 400 1rem/1.75 "Inter", "Segoe UI", sans-serif;
  border: 0;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

main {
  display: block;
}

#layout {
  width: min(840px, calc(100vw - 3rem));
  margin: 2.5rem auto 3.2rem;
}

.row {
  width: 100%;
  margin-top: 1rem;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 12px;
  box-shadow: 0 1px 0 rgba(15, 23, 42, 0.02), 0 10px 24px rgba(15, 23, 42, 0.025);
}

.col {
  float: none;
  margin: 0;
  width: auto;
  padding: 1.2rem 1.15rem;
}

.skip-link {
  position: absolute;
  top: -120px;
  left: 12px;
  background: #fff;
  color: var(--ink);
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  padding: 0.45rem 0.7rem;
  z-index: 999;
}

.skip-link:focus-visible {
  top: 12px;
}

h1,
h2,
h3 {
  margin: 0;
  font-family: "Merriweather", Georgia, serif;
  color: var(--accent);
  line-height: 1.25;
  font-weight: 600;
}

h2 {
  font-size: clamp(1.55rem, 2.6vw, 2rem);
  letter-spacing: -0.01em;
}

h3 {
  font-size: clamp(1.22rem, 2vw, 1.45rem);
  margin-bottom: 0.7rem;
  letter-spacing: -0.005em;
}

p,
li {
  color: var(--muted);
}

p {
  max-width: 78ch;
  margin: 0 0 0.8rem;
}

ul {
  margin: 0.2rem 0 0.85rem;
  padding-left: 1.15rem;
}

a,
body.light a {
  color: var(--accent);
  text-decoration: none;
  transition: color 120ms ease;
}

a:hover,
body.light a:hover {
  color: #136f38;
}

a:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 2px;
  border-radius: 4px;
}

.hero-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.2rem;
  margin-top: 0;
  border-color: var(--line-strong);
  background: linear-gradient(180deg, #ffffff 0%, #f9fdf9 100%);
}

.hero-main {
  flex: 1;
}

.hero-main h2 {
  font-size: clamp(1.78rem, 3.1vw, 2.25rem);
  line-height: 1.18;
}

.hero-row h2 a {
  color: var(--accent);
  text-decoration: none;
}

.hero-kicker {
  margin: 0.35rem 0 0;
  font-size: 0.94rem;
  color: #445160;
  max-width: 64ch;
}

.hero-kicker a {
  white-space: nowrap;
}

.headerimage {
  flex-shrink: 0;
}

.headerimage img {
  width: 138px;
  height: 138px;
  object-fit: cover;
  border-radius: 14px;
  border: 1px solid var(--line-strong);
  box-shadow: 0 6px 16px rgba(15, 23, 42, 0.08);
}

.hero-tags,
.hero-actions,
.hero-label,
.hero-intro,
.hero-shortcuts,
.hero-aside,
.hero-mini {
  display: none;
}

#main-content {
  display: grid;
  gap: 0.95rem;
}

#main-content > .row {
  transition: border-color 140ms ease, box-shadow 140ms ease;
}

#main-content > .row:hover {
  border-color: var(--line-strong);
  box-shadow: 0 1px 0 rgba(15, 23, 42, 0.02), 0 14px 28px rgba(15, 23, 42, 0.035);
}

#about,
#positions,
#contact,
#teaching,
#students,
#papers,
#writing,
#bio,
#research-courses,
#reading-groups,
#mentorship,
#past-teaching {
  scroll-margin-top: 4.5rem;
}

#about {
  background: linear-gradient(180deg, #ffffff 0%, #fbfefb 100%);
}

#about .col {
  padding-top: 1.35rem;
  padding-bottom: 1.3rem;
}

#about h3 {
  margin-bottom: 0.85rem;
}

#about p {
  max-width: 74ch;
  color: #556372;
}

#about ul {
  margin: 0.25rem 0 0.95rem;
  padding-left: 1.35rem;
}

#about li {
  margin: 0.2rem 0;
  color: #4e5d6b;
}

#about ul li::marker {
  color: #8ab79b;
}

#positions .col {
  padding-top: 0.9rem;
  padding-bottom: 0.75rem;
}

#positions h3 {
  margin-bottom: 0.45rem;
}

#positions p {
  margin-bottom: 0.45rem;
  font-size: 0.95rem;
}

#teaching a,
#research-courses a {
  text-decoration: none;
}

#teaching a:hover,
#research-courses a:hover {
  text-decoration: none;
}

#papers .col > div[style*="line-height:50%"],
#teaching .col > div[style*="line-height:50%"] {
  display: none;
}

#papers .col {
  display: grid;
  gap: 1rem;
  border-left: 2px solid #d9eadf;
  padding-left: 0.75rem;
}

#papers p {
  margin: 0;
  padding: 0.42rem 0.1rem 0.42rem 0.45rem;
  border: 0;
  border-radius: 0;
  background: transparent;
  border-bottom: 1px solid #edf3ee;
  box-shadow: inset 0 -1px 0 rgba(31, 122, 67, 0.04);
  position: relative;
  transition: background 120ms ease;
  color: #6b7280;
}

#papers p:last-of-type {
  border-bottom: 0;
}

#papers p:hover {
  background: #f8fcf9;
}

#papers p a:first-child,
#papers p .nolink-title {
  display: block;
  margin-bottom: 0;
  font-weight: 800;
  font-size: 1.1rem;
  line-height: 1.05;
  letter-spacing: -0.01em;
  color: var(--accent);
  text-decoration: none;
}

#papers p a:first-child:hover {
  color: #136f38;
  text-decoration: none;
}

#papers p a:not(:first-child) {
  color: #2b9a57;
  font-size: 1.02rem;
  font-weight: 500;
  text-decoration: none;
  margin-right: 0.35rem;
}

#papers p a:not(:first-child):hover {
  color: var(--accent);
}

#papers b {
  font-weight: 700;
  color: #0f172a;
}

#writing p a:first-child {
  display: block;
  margin-bottom: 0;
  font-weight: 800;
  font-size: 1.1rem;
  line-height: 1.05;
  letter-spacing: -0.01em;
  color: var(--accent);
  text-decoration: none;
}

#writing p a:first-child:hover {
  color: #136f38;
  text-decoration: none;
}

.contact-pill {
  display: inline-block;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: #f4faf5;
  padding: 0.33rem 0.68rem;
  color: #374151;
}

.nolink-title {
  color: var(--accent);
  font-weight: 500;
}

.special-issue {
  display: inline-block;
  margin-left: 0.35rem;
  padding: 0.05rem 0.36rem;
  border-radius: 999px;
  border: 1px solid #e5d8c2;
  background: #fdf9ef;
  color: #736146;
  font-size: 0.75rem;
  font-weight: 550;
  white-space: nowrap;
}

#students-list p {
  margin-bottom: 0.65rem;
}

#students-list,
#students-list p {
  text-align: left;
}

#layout > .row:last-child {
  border: 0;
  background: transparent;
  box-shadow: none;
}

#layout > .row:last-child .col {
  padding-top: 0.35rem;
  padding-bottom: 0;
}

.alignright {
  text-align: right;
}

.aligncenter {
  text-align: center;
}

@media (max-width: 900px) {
  #layout {
    width: calc(100vw - 1.6rem);
    margin-top: 1.3rem;
  }

  .col {
    padding: 1rem 0.9rem;
  }

  #papers p {
    padding: 0.62rem 0.1rem 0.62rem 0.45rem;
  }

  #papers .col {
    padding-left: 0.8rem;
  }

  .headerimage {
    display: none;
  }

  .hero-kicker a {
    white-space: normal;
  }
}

@media (prefers-reduced-motion: reduce) {
  body,
  body.light {
    scroll-behavior: auto;
  }
}