@import url('https://fonts.googleapis.com/css2?family=Libre+Baskerville:ital,wght@0,400;0,700;1,400&family=Inter:wght@400;500;600&display=swap');

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  margin: 0;
  background: #F5F0EB;
  color: #2C2420;
  -webkit-font-smoothing: antialiased;
}

/* Top bar */
.topbar {
    border-bottom: 1px solid #E2DCD6;
    padding: 12px 20px;
    display: flex;
    align-items: center;
    gap: 14px;
    background: #FFFFFF;
    box-shadow: 0 1px 3px rgba(44,36,32,0.06);
}
.topbar .brand {
    font-family: 'Libre Baskerville', Georgia, serif;
    font-size: 17px;
    font-weight: 700;
    color: #6B4C3B;
    letter-spacing: -0.01em;
}

.app-body { display: flex; min-height: calc(100vh - 52px); }

/* Sidebar */
.sidebar {
    background: #FAF7F4;
    border-right: 1px solid #E2DCD6;
    padding: 20px 16px;
    width: 220px;
    flex-shrink: 0;
}
.sidebar-heading {
    font-family: 'Libre Baskerville', Georgia, serif;
    font-size: 11px;
    color: #8A7E75;
    font-weight: 700;
    letter-spacing: 0.06em;
    margin: 0 0 10px;
    text-transform: uppercase;
}
.nav-item {
    font-size: 13px;
    padding: 8px 12px;
    border-radius: 8px;
    margin-bottom: 3px;
    cursor: pointer;
    color: #5C4F46;
    border: 1px solid transparent;
    transition: all 0.12s;
}
.nav-item:hover { background: #FFFFFF; }
.nav-item.active {
    background: #FFFFFF;
    color: #2C2420;
    font-weight: 500;
    border: 1px solid #E2DCD6;
    box-shadow: 0 1px 3px rgba(44,36,32,0.06);
}
.filter-label {
    font-size: 12px;
    color: #5C4F46;
    margin: 0 0 5px;
    font-weight: 500;
}

/* Main area */
.main-panel {
    flex: 1;
    padding: 20px;
    min-width: 0;
    overflow-y: auto;
    background: #F5F0EB;
}

/* Stat cards */
.stats-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 10px;
    margin-bottom: 16px;
}
.stat-card {
    background: #FFFFFF;
    border-radius: 10px;
    padding: 14px 16px;
    border: 1px solid #E2DCD6;
    box-shadow: 0 1px 3px rgba(44,36,32,0.06);
    transition: box-shadow 0.2s, transform 0.15s;
}
.stat-card:hover {
    box-shadow: 0 2px 8px rgba(44,36,32,0.08);
    transform: translateY(-1px);
}
.stat-label {
    font-size: 11px;
    color: #8A7E75;
    margin: 0 0 4px;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    font-weight: 600;
}
.stat-val {
    font-family: 'Libre Baskerville', Georgia, serif;
    font-size: 22px;
    font-weight: 700;
    margin: 0;
    color: #6B4C3B;
}

/* Panels */
.panel {
    background: #FFFFFF;
    border: 1px solid #E2DCD6;
    border-radius: 14px;
    padding: 18px 22px;
    margin-bottom: 16px;
    box-shadow: 0 1px 3px rgba(44,36,32,0.06);
}
.panel-title {
    font-family: 'Libre Baskerville', Georgia, serif;
    font-size: 15px;
    font-weight: 700;
    color: #2C2420;
    margin: 0 0 12px;
    padding-bottom: 8px;
    border-bottom: 1px solid #EDE8E3;
    letter-spacing: 0.01em;
}

/* Two-column grid */
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-bottom: 14px; }
@media (max-width: 900px) { .two-col { grid-template-columns: 1fr; } }

/* Publication table */
.pub-controls {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 12px;
    flex-wrap: wrap;
    gap: 10px;
}
.sort-buttons { display: flex; gap: 6px; }
.sort-btn {
    font-size: 11px;
    padding: 5px 12px;
    border-radius: 99px;
    border: 1px solid #E2DCD6;
    background: #FFFFFF;
    color: #5C4F46;
    cursor: pointer;
    font-family: inherit;
    font-weight: 500;
    transition: all 0.15s;
}
.sort-btn:hover { background: #F0EBE3; }
.sort-btn.active {
    background: #6B4C3B;
    color: #FFFFFF;
    border-color: #6B4C3B;
}
.search-box {
    font-size: 12px;
    padding: 7px 14px;
    border-radius: 99px;
    border: 1px solid #E2DCD6;
    background: #FAF7F4;
    color: #2C2420;
    width: 220px;
}
.search-box:focus {
    outline: none;
    border-color: #6B4C3B;
}

.pub-row {
    padding: 12px 10px;
    border-bottom: 1px solid #EDE8E3;
    display: flex;
    gap: 14px;
    align-items: flex-start;
    cursor: pointer;
    border-radius: 6px;
    transition: background 0.12s;
}
.pub-row:last-child { border-bottom: none; }
.pub-row:hover { background: #FAF7F4; }
.pub-year {
    font-family: 'Libre Baskerville', Georgia, serif;
    font-size: 13px;
    color: #8A7E75;
    min-width: 40px;
    padding-top: 2px;
    flex-shrink: 0;
}
.pub-info { flex: 1; min-width: 0; }
.pub-title {
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 4px;
    line-height: 1.45;
    color: #2C2420;
}
.pub-authors {
    font-size: 12px;
    color: #8A7E75;
    margin-bottom: 6px;
    font-style: italic;
}
.pub-meta { display: flex; gap: 6px; flex-wrap: wrap; align-items: center; }

/* Badges */
.badge {
    font-size: 11px;
    padding: 3px 10px;
    border-radius: 99px;
    display: inline-block;
    font-weight: 500;
}
.badge-cites { background: #F0EBE3; color: #5A3D2E; }
.badge-venue { background: #E8F4EF; color: #1B5E47; }
.badge-if { background: #FDF4E7; color: #7A5216; }
.badge-if-high { background: #E8F4EF; color: #1B5E47; }

/* Reference expand */
.pub-ref {
    display: none;
    margin-top: 8px;
    padding: 10px 14px;
    background: #FAF7F4;
    border-radius: 8px;
    border: 1px solid #EDE8E3;
    font-size: 12px;
    color: #5C4F46;
}
.pub-ref.show { display: block; }
.ref-text {
    font-family: 'Libre Baskerville', Georgia, serif;
    font-size: 13px;
    word-break: break-word;
    line-height: 1.65;
}
.copy-btn {
    font-size: 11px;
    padding: 4px 12px;
    margin-top: 6px;
    border-radius: 99px;
    border: 1px solid #E2DCD6;
    background: #FFFFFF;
    color: #5C4F46;
    cursor: pointer;
    font-weight: 500;
    transition: all 0.15s;
}
.copy-btn:hover { background: #6B4C3B; color: #fff; border-color: #6B4C3B; }

/* Export buttons */
.export-btn {
    font-size: 12px;
    padding: 7px 16px;
    border-radius: 99px;
    border: 1px solid #E2DCD6;
    background: #FFFFFF;
    color: #2C2420;
    cursor: pointer;
    font-weight: 500;
    box-shadow: 0 1px 3px rgba(44,36,32,0.06);
    transition: all 0.15s;
}
.export-btn:hover { background: #6B4C3B; color: #fff; border-color: #6B4C3B; }

/* Loading spinner */
.loading-overlay {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 60px;
    color: #8A7E75;
    font-size: 14px;
    font-family: 'Libre Baskerville', Georgia, serif;
    font-style: italic;
}

/* Publication count badge */
.pub-count {
    font-family: 'Inter', sans-serif;
    font-size: 11px;
    font-weight: 600;
    background: #F0EBE3;
    color: #5A3D2E;
    padding: 2px 8px;
    border-radius: 99px;
    margin-left: 8px;
    vertical-align: middle;
}

/* Active filter info */
.filter-info {
    font-size: 11px;
    color: #8A7E75;
    margin-top: 8px;
    display: flex;
    align-items: center;
    gap: 8px;
}
.clear-filter-btn {
    font-size: 11px;
    padding: 2px 10px;
    border-radius: 99px;
    border: 1px solid #E2DCD6;
    background: #FFFFFF;
    cursor: pointer;
    color: #5C4F46;
    font-weight: 500;
    transition: all 0.15s;
}
.clear-filter-btn:hover { background: #6B4C3B; color: #fff; }

/* Author header card */
.author-header {
    background: #FFFFFF;
    border: 1px solid #E2DCD6;
    border-radius: 14px;
    padding: