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10px;border-radius:8px;line-height:1.5}.delete-btn{opacity:0;width:28px;height:28px;border:none;background:none;cursor:pointer;color:var(--text-3);display:flex;align-items:center;justify-content:center;border-radius:6px;flex-shrink:0;font-size:1.2rem;line-height:1;transition:opacity var(--t),background var(--t),color var(--t);font-family:inherit}.todo-item:hover .delete-btn{opacity:1}.delete-btn:hover{background:#fee2e2;color:var(--danger)}.filter-bar{display:flex;align-items:center;padding:12px 18px 16px;gap:8px;border-top:1px solid var(--border);font-size:.825rem;color:var(--text-2);flex-wrap:wrap}.item-count{flex:1 1;white-space:nowrap;font-size:.8rem;color:var(--text-3);font-feature-settings:"tnum";font-variant-numeric:tabular-nums}.filters{display:flex;gap:6px}.filter-btn{padding:5px 14px;border:1.5px solid var(--border);border-radius:999px;background:none;cursor:pointer;font-size:.8rem;color:var(--text-2);transition:all var(--t);font-family:inherit;line-height:1.5;font-weight:500}.filter-btn:hover{border-color:var(--primary);color:var(--primary);background:var(--primary-light)}.filter-btn.active{background:var(--gradient);color:white;border-color:transparent;font-weight:600}.clear-btn{background:none;border:none;cursor:pointer;font-size:.8rem;color:var(--text-3);padding:5px 8px;border-radius:999px;transition:all var(--t);font-family:inherit;white-space:nowrap}.clear-btn:hover{color:var(--danger);background:#fee2e2}@media (prefers-color-scheme:dark){:root{--bg:#0d0e1c;--surface:#161728;--primary-light:#1e2040;--item-bg:#1a1c30;--text:#E2E4F0;--text-2:#8B8FA8;--text-3:#55586C;--border:#272944;--shadow-lg:0 24px 64px rgba(0,0,0,0.45);--shadow-sm:0 2px 8px rgba(0,0,0,0.3)}.app-header{border-radius:var(--r) var(--r) 0 0}.checkbox{background:#161728}.todo-edit-input{background:#1e2040;color:var(--text)}.todo-item:hover{background:#1e2040;border-color:#383b6a}.delete-btn:hover{background:rgba(244,63,94,.2)}.clear-btn:hover{background:rgba(244,63,94,.15)}.filter-btn:hover{background:var(--primary-light)}}@media (max-width:520px){body{padding:0 0 60px}.app-header,.card{border-radius:0}.app{max-width:100%}}