/* ==============================================================
   Chennan Ma — Academic Homepage
   Inspired by AcademicPages layout with a warm, editorial palette.
   ============================================================== */

:root {
  --bg: #fbfaf6;
  --paper: #ffffff;
  --ink: #1f2430;
  --ink-soft: #4a5060;
  --ink-mute: #7a8090;
  --line: #e8e3d6;
  --accent: #0f766e;      /* teal */
  --accent-2: #c2410c;    /* burnt orange */
  --badge-bg: #eaf5f3;
  --oral-bg: #fdecdc;
  --serif: 'Lora', 'Times New Roman', serif;
  --sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: color .15s ease;
}
a:hover { color: var(--accent-2); }

/* ---- Layout: sidebar + main ---- */
.layout {
  max-width: 1180px;
  margin: 0 auto;
  padding: 48px 32px;
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 56px;
}

.sidebar {
  position: sticky;
  top: 48px;
  align-self: start;
  text-align: center;
}

.avatar {
  width: 180px;
  height: 180px;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid var(--paper);
  box-shadow: 0 6px 24px rgba(0,0,0,0.08);
  margin-bottom: 20px;
  background: linear-gradient(135deg, #dceee9, #f5d9c1);
}

.sidebar .name {
  font-family: var(--serif);
  font-weight: 500;
  font-size: 1.6rem;
  margin: 0 0 4px;
  color: var(--ink);
}
.sidebar .name-cn {
  color: var(--ink-soft);
  margin: 0 0 12px;
  font-size: .95rem;
}
.sidebar .title {
  margin: 0;
  color: var(--accent);
  font-weight: 600;
  font-size: .95rem;
}
.sidebar .affiliation {
  margin: 4px 0 14px;
  color: var(--ink-mute);
  font-size: .88rem;
}

.sidebar .tagline {
  margin: 0 auto 4px;
  color: var(--accent-2);
  font-family: var(--serif);
  font-style: italic;
  font-size: .92rem;
  letter-spacing: .3px;
  padding: 8px 12px;
  display: inline-block;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.sidebar .links {
  list-style: none;
  padding: 0;
  margin: 20px 0 0;
  border-top: 1px solid var(--line);
  padding-top: 20px;
}
.sidebar .links li { margin: 8px 0; }
.sidebar .links a { font-size: .92rem; }

.footnote {
  margin-top: 28px;
  font-size: .78rem;
  color: var(--ink-mute);
  font-style: italic;
}

/* ---- Content ---- */
.content { min-width: 0; }

.content section {
  margin-bottom: 44px;
  animation: fadeUp .5s ease both;
}

.content h2 {
  font-family: var(--serif);
  font-weight: 500;
  font-size: 1.5rem;
  color: var(--ink);
  margin: 0 0 18px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--line);
  position: relative;
}
.content h2::after {
  content: "";
  position: absolute;
  left: 0; bottom: -1px;
  width: 56px;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
}

.content p { margin: 0 0 12px; }

.motto {
  margin: 18px 0 0;
  text-align: center;
  color: var(--accent);
  font-family: var(--serif);
  font-size: .98rem;
  padding: 12px 0;
  border-top: 1px dashed var(--line);
  border-bottom: 1px dashed var(--line);
}

.awards li.placeholder {
  color: var(--ink-mute);
  opacity: .7;
}
.awards li.placeholder .year { color: var(--ink-mute); }

/* ---- Interests list ---- */
.interests {
  list-style: none;
  padding: 0;
  margin: 0;
}
.interests li {
  padding: 6px 0 6px 22px;
  position: relative;
}
.interests li::before {
  content: "▹";
  color: var(--accent);
  position: absolute;
  left: 0;
}

/* ---- News feed ---- */
.news {
  list-style: none;
  padding: 0;
  margin: 0;
}
.news li {
  display: grid;
  grid-template-columns: 90px 1fr;
  gap: 16px;
  padding: 10px 0;
  border-bottom: 1px dashed var(--line);
}
.news li:last-child { border-bottom: none; }
.news .date {
  color: var(--accent);
  font-weight: 600;
  font-size: .88rem;
  padding-top: 2px;
}
.news .tag {
  display: inline-block;
  padding: 1px 8px;
  border-radius: 10px;
  font-size: .75rem;
  font-weight: 600;
  vertical-align: middle;
  margin-left: 4px;
}
.tag.oral { background: var(--oral-bg); color: var(--accent-2); }

/* ---- Publication cards ---- */
.hint {
  color: var(--ink-mute);
  font-size: .85rem;
  margin-top: -6px;
  margin-bottom: 16px;
}

.pub {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}
.pub:last-of-type { border-bottom: none; }

.pub-thumb {
  height: 120px;
  width: auto;
  max-width: 100%;
  border-radius: 8px;
  object-fit: contain;
  align-self: start;
}

.pub-body h3 {
  margin: 0 0 6px;
  font-family: var(--serif);
  font-weight: 500;
  font-size: 1.08rem;
  line-height: 1.35;
}
.pub-body h3 a { color: var(--ink); }
.pub-body h3 a:hover { color: var(--accent-2); }

.authors {
  margin: 0 0 6px;
  font-size: .92rem;
  color: var(--ink-soft);
}
.venue { margin: 0 0 8px; }

.badge {
  display: inline-block;
  background: var(--badge-bg);
  color: var(--accent);
  padding: 2px 10px;
  border-radius: 12px;
  font-size: .78rem;
  font-weight: 600;
  letter-spacing: .3px;
}

.summary {
  color: var(--ink-soft);
  font-size: .92rem;
  margin: 6px 0;
}

.pub-links {
  margin-top: 6px;
  font-size: .85rem;
  color: var(--ink-mute);
}
.pub-links a { font-weight: 500; }

.more {
  margin-top: 18px;
  text-align: right;
  font-size: .92rem;
}

/* ---- Timeline (Experience) ---- */
.timeline {
  list-style: none;
  padding: 0;
  margin: 0;
}
.timeline li {
  display: grid;
  grid-template-columns: 150px 1fr;
  gap: 20px;
  padding: 12px 0;
  border-bottom: 1px dashed var(--line);
}
.timeline li:last-child { border-bottom: none; }
.timeline .when {
  color: var(--accent);
  font-weight: 600;
  font-size: .88rem;
  padding-top: 3px;
}
.timeline .what { display: block; font-size: .98rem; }
.timeline .entry { min-width: 0; }
.timeline .detail {
  display: block;
  color: var(--ink-mute);
  font-size: .88rem;
  margin-top: 4px;
}

/* ---- Awards ---- */
.awards {
  list-style: none;
  padding: 0;
  margin: 0;
}
.awards li {
  padding: 6px 0;
  display: grid;
  grid-template-columns: 70px 1fr;
  gap: 16px;
}
.awards .year {
  color: var(--accent);
  font-weight: 600;
  font-size: .88rem;
}

/* ---- Footer ---- */
footer {
  margin-top: 60px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
  color: var(--ink-mute);
  font-size: .82rem;
  text-align: center;
}

/* ---- Animation ---- */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ---- Responsive ---- */
@media (max-width: 900px) {
  .layout {
    grid-template-columns: 1fr;
    gap: 32px;
    padding: 32px 20px;
  }
  .sidebar {
    position: relative;
    top: 0;
    text-align: center;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--line);
  }
  .avatar { width: 140px; height: 140px; }
  .pub-thumb { height: 100px; }
  .news li, .timeline li {
    grid-template-columns: 1fr;
    gap: 4px;
  }
  .news .date, .timeline .when { font-size: .82rem; }
}