/* =============================================
   ROOT & RESET
   ============================================= */
:root {
  --ink:       #1a1a1a;
  --muted:     #555;
  --light:     #f5f3ee;
  --white:     #ffffff;
  --accent:    #7a3b2e;       /* deep terracotta — swap freely */
  --border:    #ddd8d0;
  --nav-h:     60px;
  --max-w:     860px;
  --font-serif: 'EB Garamond', Georgia, serif;
  --font-sans:  'DM Sans', sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  color: var(--ink);
  background: var(--white);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

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

/* =============================================
   NAV
   ============================================= */
nav {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--nav-h);
  background: var(--white);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 2rem;
  gap: 1rem;
}

.nav-name a {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  color: var(--ink);
  font-weight: 500;
  white-space: nowrap;
}

nav ul {
  list-style: none;
  display: flex;
  gap: 1.8rem;
}

nav ul a {
  font-size: 0.875rem;
  font-weight: 400;
  letter-spacing: 0.03em;
  color: var(--muted);
  text-transform: uppercase;
  transition: color 0.15s;
}

nav ul a:hover,
nav ul a.active {
  color: var(--accent);
  text-decoration: none;
}

.menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.4rem;
  cursor: pointer;
  color: var(--ink);
}

/* =============================================
   HOME LAYOUT
   ============================================= */
.home-layout {
  max-width: var(--max-w);
  margin: 4rem auto;
  padding: 0 2rem;
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 3rem;
  align-items: start;
  flex: 1;
}

.photo-placeholder {
  width: 200px;
  height: 250px;
  background: var(--light);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--muted);
  font-size: 0.85rem;
  font-family: var(--font-sans);
}

/* replace placeholder with real image: */
/* .home-photo img { width: 200px; display: block; border: 1px solid var(--border); } */

.home-bio h1 {
  font-family: var(--font-serif);
  font-size: 2rem;
  font-weight: 400;
  margin-bottom: 0.25rem;
  line-height: 1.2;
}

.title-line {
  color: var(--muted);
  font-size: 0.95rem;
  margin-bottom: 1.5rem;
  line-height: 1.5;
}

.title-line span { color: var(--ink); font-weight: 500; }

.home-bio p {
  margin-bottom: 1rem;
  font-size: 0.97rem;
  color: #333;
}

.contact-block {
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  font-size: 0.9rem;
  color: #444;
  line-height: 1.8;
}

.contact-block p { margin-bottom: 0.5rem; }

.links-row {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 0.75rem;
}

.links-row a {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--accent);
  border: 1px solid var(--accent);
  padding: 0.25rem 0.75rem;
  transition: background 0.15s, color 0.15s;
}

.links-row a:hover {
  background: var(--accent);
  color: var(--white);
  text-decoration: none;
}

/* =============================================
   INNER PAGES (CV / Research / Policy / Teaching)
   ============================================= */
.page-content {
  max-width: var(--max-w);
  margin: 3.5rem auto;
  padding: 0 2rem;
  flex: 1;
}

.page-content h2 {
  font-family: var(--font-serif);
  font-size: 1.7rem;
  font-weight: 400;
  margin-bottom: 2rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border);
}

/* Section headers inside pages */
.page-content h3 {
  font-family: var(--font-sans);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 2.5rem 0 1rem;
}

/* ---- Paper / Item cards ---- */
.paper-list { list-style: none; }

.paper-item {
  padding: 1.2rem 0;
  border-bottom: 1px solid var(--border);
}

.paper-item:first-child { border-top: 1px solid var(--border); }

.paper-title {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--ink);
  display: block;
  margin-bottom: 0.2rem;
}

.paper-meta {
  font-size: 0.85rem;
  color: var(--muted);
  margin-bottom: 0.5rem;
}

.paper-abstract {
  font-size: 0.88rem;
  color: #444;
  margin-top: 0.5rem;
  display: none;
}

.paper-abstract.open { display: block; }

.paper-links { margin-top: 0.5rem; }

.paper-links a, .btn-abstract {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--accent);
  border: 1px solid var(--accent);
  padding: 0.15rem 0.6rem;
  margin-right: 0.4rem;
  cursor: pointer;
  background: none;
  font-family: var(--font-sans);
  transition: background 0.15s, color 0.15s;
  display: inline-block;
}

.paper-links a:hover, .btn-abstract:hover {
  background: var(--accent);
  color: var(--white);
  text-decoration: none;
}

/* ---- CV table style ---- */
.cv-block {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 0.3rem 1.5rem;
  margin-bottom: 0.6rem;
  font-size: 0.92rem;
}

.cv-year { color: var(--muted); padding-top: 0.05rem; }

/* ---- Teaching table ---- */
.teaching-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
  margin-top: 0.5rem;
}

.teaching-table th {
  text-align: left;
  border-bottom: 1px solid var(--border);
  padding: 0.5rem 0.75rem 0.5rem 0;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--muted);
}

.teaching-table td {
  padding: 0.65rem 0.75rem 0.65rem 0;
  border-bottom: 1px solid var(--border);
  color: #333;
}

/* ---- Footer ---- */
footer {
  text-align: center;
  font-size: 0.8rem;
  color: #aaa;
  padding: 2rem;
  border-top: 1px solid var(--border);
  margin-top: auto;
}

/* =============================================
   RESPONSIVE
   ============================================= */
@media (max-width: 680px) {
  .home-layout {
    grid-template-columns: 1fr;
    margin: 2rem auto;
  }

  .photo-placeholder { width: 140px; height: 170px; }

  nav ul { display: none; flex-direction: column; position: absolute;
    top: var(--nav-h); left: 0; right: 0; background: var(--white);
    border-bottom: 1px solid var(--border); padding: 1rem 2rem; gap: 0.75rem; }
  nav ul.open { display: flex; }
  .menu-toggle { display: block; }

  .cv-block { grid-template-columns: 80px 1fr; }
}