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th{background:var(--bg-surface);text-align:left;text-transform:uppercase;letter-spacing:.06em;color:var(--text-dim);border-bottom:1px solid var(--border);padding:12px 16px;font-size:.75rem;font-weight:600;position:sticky;top:0}.papers-table td{border-bottom:1px solid var(--border);color:var(--text-muted);padding:12px 16px}.paper-row:last-child td{border-bottom:none}.paper-row:hover td{background:#6c63ff0a}.paper-year{color:var(--text);white-space:nowrap;font-weight:600}.paper-session{white-space:nowrap}.paper-number{color:var(--accent,var(--accent));font-family:JetBrains Mono,Fira Code,monospace;font-weight:600}.paper-name{color:var(--text)}.paper-actions{white-space:nowrap}.btn{border-radius:var(--radius-sm);cursor:pointer;transition:all var(--transition);border:none;align-items:center;gap:6px;padding:8px 16px;font-size:.8rem;font-weight:600;display:inline-flex}.btn-sm{padding:6px 12px;font-size:.75rem}.btn-primary{background:var(--accent,var(--accent));color:#fff}.btn-primary:hover{filter:brightness(1.15);transform:translateY(-1px)}.btn-outline{border:1px solid var(--border);color:var(--text-muted);background:0 0}.btn-outline:hover{border-color:var(--accent,var(--accent));color:var(--accent,var(--accent))}.btn-ghost{color:var(--danger);background:0 0}.btn-ghost:hover{background:#ff65841a}.empty-state{text-align:center;color:var(--text-muted);padding:60px 24px}.footer{border-top:1px solid var(--border);text-align:center;padding:40px 24px}.footer-inner{max-width:var(--max-width);margin:0 auto}.footer p{color:var(--text-muted);margin-bottom:8px;font-size:.875rem}.footer-note{color:var(--text-dim)!important;font-size:.8rem!important}.footer-copy{color:var(--text-dim)!important;margin-top:16px!important;font-size:.75rem!important}@media (width<=768px){.menu-toggle{display:block}.nav-links{background:var(--bg);border-bottom:1px solid var(--border);flex-direction:column;gap:4px;padding:16px;display:none;position:absolute;top:72px;left:0;right:0}.nav-links.open{display:flex}.hero h1{font-size:2rem}.hero-stats{gap:24px}.subjects-grid{grid-template-columns:1fr}.filter-bar{flex-direction:column;align-items:stretch}.filter-group{min-width:100%}.subject-title-row h1{font-size:1.5rem}.info-grid{grid-template-columns:1fr}}@media (width<=480px){.hero h1{font-size:1.6rem}.hero-sub{font-size:1rem}.stat-number{font-size:1.3rem}}