/* ============================================================
   Academic Job Market Website — Stylesheet
   Conventions: clean, text-forward, minimal color, professional
   ============================================================ */

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

:root {
  --navy:       #1b2a4a;
  --navy-light: #2c3e6b;
  --accent:     #8b1a1a;
  --text:       #2c2c2c;
  --text-light: #555;
  --bg:         #ffffff;
  --bg-off:     #f7f7f5;
  --border:     #ddd;
  --max-width:  820px;
}

html {
  font-size: 17px;
  scroll-behavior: smooth;
}

body {
  font-family: 'Source Sans 3', 'Helvetica Neue', Helvetica, Arial, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--navy-light);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s;
}
a:hover {
  border-bottom-color: var(--navy-light);
}

/* --- Navigation --- */
nav {
  background: var(--navy);
  padding: 0;
  position: sticky;
  top: 0;
  z-index: 100;
}
nav .nav-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 1.5rem;
}
nav .nav-name a {
  font-family: 'Libre Baskerville', 'Georgia', serif;
  font-size: 1.15rem;
  font-weight: 700;
  color: #fff;
  letter-spacing: 0.02em;
  padding: 0.9rem 0;
  display: inline-block;
  border: none;
}
nav .nav-links {
  display: flex;
  gap: 0.15rem;
}
nav .nav-links a {
  color: rgba(255,255,255,0.8);
  font-size: 0.88rem;
  font-weight: 400;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  padding: 0.95rem 0.85rem;
  display: inline-block;
  border: none;
  transition: color 0.2s;
}
nav .nav-links a:hover,
nav .nav-links a.active {
  color: #fff;
}

.hamburger {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}
.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: #fff;
  margin: 5px 0;
  transition: 0.25s;
}

@media (max-width: 640px) {
  .hamburger { display: block; }
  nav .nav-links {
    display: none;
    flex-direction: column;
    width: 100%;
    position: absolute;
    top: 100%;
    left: 0;
    background: var(--navy);
    padding-bottom: 0.5rem;
  }
  nav .nav-links.open { display: flex; }
  nav .nav-links a {
    padding: 0.7rem 1.5rem;
    border-top: 1px solid rgba(255,255,255,0.08);
  }
  nav .nav-inner { flex-wrap: wrap; }
}

/* --- Page Container --- */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 2.5rem 1.5rem 4rem;
}

/* --- Home: Header section --- */
.home-header {
  display: flex;
  gap: 2.2rem;
  align-items: flex-start;
  margin-bottom: 2rem;
}
.home-photo {
  flex-shrink: 0;
}
.home-photo img {
  width: 185px;
  height: auto;
  border-radius: 3px;
  display: block;
}
.home-info h1 {
  font-family: 'Libre Baskerville', 'Georgia', serif;
  font-size: 1.65rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 0.35rem;
}
.home-info .subtitle {
  font-size: 1rem;
  color: var(--text-light);
  margin-bottom: 0.9rem;
  line-height: 1.5;
}
.home-info .contact-line {
  font-size: 0.9rem;
  color: var(--text-light);
}
.home-info .contact-line a {
  color: var(--navy-light);
}

@media (max-width: 640px) {
  .home-header {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }
  .home-photo img { width: 160px; }
}

/* --- Bio --- */
.bio {
  margin-bottom: 2.2rem;
  font-size: 1rem;
  line-height: 1.72;
}
.bio p + p {
  margin-top: 0.85rem;
}

/* --- JMP Callout --- */
.jmp-box {
  background: var(--bg-off);
  border-left: 3px solid var(--accent);
  padding: 1.2rem 1.4rem;
  margin-bottom: 2.2rem;
  border-radius: 0 3px 3px 0;
}
.jmp-box .jmp-label {
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent);
  margin-bottom: 0.35rem;
}
.jmp-box .jmp-title {
  font-family: 'Libre Baskerville', 'Georgia', serif;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 0.3rem;
}
.jmp-box .jmp-links a {
  font-size: 0.88rem;
  margin-right: 1rem;
  font-weight: 600;
}

/* --- Section headings --- */
h2.section-title {
  font-family: 'Libre Baskerville', 'Georgia', serif;
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 1.3rem;
  padding-bottom: 0.4rem;
  border-bottom: 1px solid var(--border);
}

/* --- Research Papers --- */
.paper {
  margin-bottom: 2rem;
}
.paper .paper-title {
  font-weight: 700;
  font-size: 1.02rem;
  color: var(--navy);
  margin-bottom: 0.15rem;
}
.paper .paper-with {
  font-size: 0.9rem;
  color: var(--text-light);
  margin-bottom: 0.3rem;
  font-style: italic;
}
.paper .paper-abstract {
  font-size: 0.93rem;
  color: var(--text-light);
  line-height: 1.6;
  margin-top: 0.3rem;
}
.paper .paper-links {
  margin-top: 0.35rem;
  font-size: 0.88rem;
}
.paper .paper-links a {
  margin-right: 1rem;
  font-weight: 600;
}
.paper .paper-status {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--accent);
  margin-bottom: 0.15rem;
}
.abstract-toggle {
  font-size: 0.86rem;
  color: var(--navy-light);
  cursor: pointer;
  border: none;
  background: none;
  font-family: inherit;
  padding: 0;
  border-bottom: 1px dashed var(--navy-light);
}
.abstract-toggle:hover {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

/* --- Teaching --- */
.teaching-item {
  margin-bottom: 1.5rem;
}
.teaching-item .course-name {
  font-weight: 700;
  font-size: 1rem;
  color: var(--navy);
}
.teaching-item .course-detail {
  font-size: 0.93rem;
  color: var(--text-light);
}

/* --- References --- */
.references-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem 2.5rem;
}
@media (max-width: 640px) {
  .references-grid { grid-template-columns: 1fr; }
}
.ref-card .ref-name {
  font-weight: 700;
  color: var(--navy);
  font-size: 1rem;
}
.ref-card .ref-detail {
  font-size: 0.9rem;
  color: var(--text-light);
  line-height: 1.5;
}

/* --- CV --- */
.cv-section p {
  margin-bottom: 1rem;
  font-size: 1rem;
}
.cv-section .btn {
  display: inline-block;
  background: var(--navy);
  color: #fff;
  padding: 0.6rem 1.4rem;
  border-radius: 3px;
  font-size: 0.92rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  border: none;
  transition: background 0.2s;
}
.cv-section .btn:hover {
  background: var(--navy-light);
  border: none;
}

footer {
  text-align: center;
  padding: 1.5rem;
  font-size: 0.8rem;
  color: #999;
  border-top: 1px solid var(--border);
  margin-top: 2rem;
}