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.15s;border:none}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:var(--accent);color:#fff}.btn-primary:hover:not(:disabled){background:var(--accent-hover)}.btn-secondary{background:var(--card-bg);color:var(--text-primary);border:1px solid var(--border)}.btn-secondary:hover:not(:disabled){background:var(--bg-hover);border-color:var(--border-hover)}.btn-danger{background:#ef4444;color:#fff}.btn-danger:hover:not(:disabled){background:#dc2626}.btn-small{padding:6px 12px;font-size:13px}@media(max-width:768px){.stats-page{padding:16px}.stats-header{flex-direction:column;gap:16px;align-items:flex-start}.stats-overview{grid-template-columns:repeat(2,1fr)}.stats-highlights{flex-direction:column}.table-controls{flex-direction:column;gap:12px;align-items:stretch}.search-box input{width:100%}.questions-controls{flex-direction:column;align-items:stretch}.controls-left,.controls-right{justify-content:space-between}.stats-table{font-size:13px}.stats-table th,.stats-table td{padding:10px 12px}}