/* ============================================================
 * Publication list — modern academic theme
 * ============================================================ */

:root {
  --bg: #f6f7f9;
  --bg-elev: #ffffff;
  --text: #1c2230;
  --text-soft: #5a6577;
  --text-faint: #8a93a3;
  --border: #e6e9ef;
  --accent: #3b6cff;
  --accent-soft: #eaf0ff;
  --accent-text: #2a52d4;
  --me: #c0392b;
  --shadow: 0 1px 2px rgba(20, 30, 60, .05), 0 8px 24px rgba(20, 30, 60, .06);
  --shadow-hover: 0 4px 10px rgba(20, 30, 60, .08), 0 16px 40px rgba(20, 30, 60, .12);
  --radius: 14px;
  --max: 880px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0e1116;
    --bg-elev: #161b22;
    --text: #e7ecf3;
    --text-soft: #aab4c2;
    --text-faint: #6e7889;
    --border: #232a33;
    --accent: #5b86ff;
    --accent-soft: #18233f;
    --accent-text: #9db6ff;
    --me: #ff7a6b;
    --shadow: 0 1px 2px rgba(0, 0, 0, .4), 0 8px 24px rgba(0, 0, 0, .35);
    --shadow-hover: 0 4px 10px rgba(0, 0, 0, .5), 0 16px 40px rgba(0, 0, 0, .5);
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Helvetica Neue",
    "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

.wrap { max-width: var(--max); margin: 0 auto; padding: 0 20px; }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  overflow: hidden;
  padding: 72px 20px 60px;
  text-align: center;
  background:
    radial-gradient(1200px 400px at 50% -120px, rgba(59, 108, 255, .18), transparent 70%),
    linear-gradient(180deg, var(--bg-elev), var(--bg));
  border-bottom: 1px solid var(--border);
}
.hero-eyebrow {
  display: inline-block;
  margin-bottom: 14px;
  padding: 5px 14px;
  border: 1px solid color-mix(in srgb, var(--accent) 35%, var(--border));
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent-text);
  font-size: .76rem;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
}
.hero h1 {
  margin: 0 0 10px;
  font-size: clamp(1.9rem, 4.6vw, 2.9rem);
  font-weight: 800;
  letter-spacing: -.02em;
}
.hero .tagline {
  margin: 0 auto;
  max-width: 640px;
  color: var(--text-soft);
  font-size: 1.06rem;
}
.hero-stats {
  margin: 18px 0 0;
  color: var(--text-faint);
  font-size: .9rem;
  font-weight: 600;
}

/* ---------- Toolbar ---------- */
.toolbar {
  position: sticky;
  top: 0;
  z-index: 20;
  margin-top: 28px;
  padding: 14px 0;
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: saturate(180%) blur(10px);
  border-bottom: 1px solid var(--border);
}
.toolbar-inner { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }

.search-box {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: 1 1 240px;
  min-width: 0;
  padding: 0 14px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--bg-elev);
  transition: .18s;
}
.search-box svg {
  flex: none;
  width: 18px;
  height: 18px;
  color: var(--text-faint);
  pointer-events: none;
}
.search-box:focus-within { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
#pub-search {
  flex: 1 1 auto;
  min-width: 0;
  width: 100%;
  padding: 10px 0;
  border: none;
  background: transparent;
  color: var(--text);
  font-size: 16px; /* >=16px avoids iOS Safari zoom-on-focus */
  outline: none;
  -webkit-appearance: none;
  appearance: none;
}

#pub-filters { display: flex; gap: 8px; flex-wrap: wrap; }
.pub-filter {
  padding: 8px 14px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--bg-elev);
  color: var(--text-soft);
  font-size: .87rem;
  font-weight: 600;
  cursor: pointer;
  transition: .15s;
}
.pub-filter:hover { color: var(--text); border-color: var(--accent); }
.pub-filter.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.toolbar-selects { display: flex; gap: 8px; }
.toolbar-selects select {
  padding: 9px 30px 9px 12px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--bg-elev)
    url("data:image/svg+xml,%3Csvg%20xmlns='http://www.w3.org/2000/svg'%20width='12'%20height='12'%20viewBox='0%200%2024%2024'%20fill='none'%20stroke='%238a93a3'%20stroke-width='3'%3E%3Cpath%20d='M6%209l6%206%206-6'/%3E%3C/svg%3E")
    no-repeat right 10px center;
  color: var(--text);
  font-size: .87rem;
  font-weight: 600;
  cursor: pointer;
  appearance: none;
  -webkit-appearance: none;
  outline: none;
  transition: .15s;
}
.toolbar-selects select:hover { border-color: var(--accent); }
.toolbar-selects select:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }

#pub-count { color: var(--text-faint); font-size: .85rem; padding: 6px 2px 0; margin-left: auto; }

/* ---------- List ---------- */
main { padding: 8px 0 80px; }
.pub-year-group { margin-top: 34px; }
.pub-year {
  display: flex; align-items: center; gap: 10px;
  margin: 0 0 16px;
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -.01em;
}
.pub-year::before {
  content: ""; width: 4px; height: 1.1em; border-radius: 3px;
  background: linear-gradient(var(--accent), var(--accent-text));
}
.pub-year-count {
  font-size: .75rem; font-weight: 700; color: var(--text-faint);
  background: var(--bg-elev); border: 1px solid var(--border);
  padding: 2px 8px; border-radius: 999px;
}
.pub-year-list { display: flex; flex-direction: column; gap: 14px; }

.pub-card {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 20px;
  box-shadow: var(--shadow);
  transition: transform .16s ease, box-shadow .16s ease, border-color .16s ease;
}
.pub-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
  border-color: color-mix(in srgb, var(--accent) 40%, var(--border));
}
.pub-title {
  margin: 0 0 6px;
  font-size: 1.08rem;
  font-weight: 700;
  line-height: 1.4;
  letter-spacing: -.01em;
}
.pub-authors { color: var(--text-soft); font-size: .94rem; margin-bottom: 8px; }
.pub-author-me { color: var(--me); font-weight: 700; }

.pub-venue { display: flex; align-items: center; gap: 9px; flex-wrap: wrap; margin-bottom: 12px; }
.pub-venue-text { color: var(--text-faint); font-size: .88rem; font-style: italic; }
.pub-badge {
  font-size: .72rem; font-weight: 800; letter-spacing: .03em;
  text-transform: uppercase;
  padding: 3px 9px; border-radius: 6px;
}
.pub-badge-conference { background: var(--accent-soft); color: var(--accent-text); }
.pub-badge-journal { background: #e9f7ef; color: #1e8e4e; }
.pub-badge-preprint { background: #fdf0e3; color: #c47d1a; }
.pub-badge-other { background: var(--border); color: var(--text-soft); }
@media (prefers-color-scheme: dark) {
  .pub-badge-journal { background: #133024; color: #46d189; }
  .pub-badge-preprint { background: #3a2a13; color: #f0b257; }
}

.pub-links { display: flex; gap: 8px; flex-wrap: wrap; }
.pub-link {
  display: inline-flex; align-items: center;
  padding: 5px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: transparent;
  color: var(--text-soft);
  font-size: .82rem; font-weight: 600;
  cursor: pointer;
  transition: .15s;
  font-family: inherit;
}
.pub-link:hover {
  text-decoration: none;
  color: var(--accent-text);
  border-color: var(--accent);
  background: var(--accent-soft);
}
.pub-bib-btn.active { color: var(--accent-text); border-color: var(--accent); background: var(--accent-soft); }

.pub-bibtex {
  margin: 14px 0 0;
  padding: 14px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  font-size: .8rem;
  line-height: 1.5;
  color: var(--text-soft);
  white-space: pre-wrap;
  word-break: break-word;
  overflow-x: auto;
}

.pub-more { display: flex; justify-content: center; margin-top: 30px; }
.pub-loadmore {
  padding: 11px 26px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--bg-elev);
  color: var(--text-soft);
  font-size: .9rem; font-weight: 700;
  font-family: inherit;
  cursor: pointer;
  box-shadow: var(--shadow);
  transition: .16s;
}
.pub-loadmore:hover {
  color: var(--accent-text);
  border-color: var(--accent);
  background: var(--accent-soft);
  transform: translateY(-1px);
}

.pub-empty, .pub-error {
  text-align: center; color: var(--text-faint);
  padding: 60px 20px; font-size: 1rem;
}
.pub-error { color: var(--me); }

.loading { text-align: center; padding: 60px 20px; color: var(--text-faint); }
.loading .spinner {
  width: 28px; height: 28px; margin: 0 auto 14px;
  border: 3px solid var(--border); border-top-color: var(--accent);
  border-radius: 50%; animation: spin .8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

footer {
  text-align: center; padding: 30px 20px 50px;
  color: var(--text-faint); font-size: .85rem;
  border-top: 1px solid var(--border);
}

@media (max-width: 640px) {
  .hero { padding: 52px 18px 44px; }
  .toolbar-inner { flex-direction: column; align-items: stretch; }
  /* In a column layout the flex-basis maps to height, so reset it to
     auto — otherwise `flex: 1 1 240px` stretches the box to 240px tall. */
  .search-box { flex: 0 0 auto; }
  .toolbar-selects { width: 100%; }
  .toolbar-selects select { flex: 1 1 0; }
  #pub-count { text-align: center; padding-top: 2px; margin-left: 0; }
}