:root{--bg:#f6f6f4;--surface:#fff;--text:#1c1c1e;--muted:#6e6e73;--border:#e3e3e0;--accent:#f38020;--accent-hover:#d96e12;--danger:#c4314b;--danger-bg:#fdecef;color:var(--text);background:var(--bg);-webkit-font-smoothing:antialiased;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif}@media (prefers-color-scheme:dark){:root{--bg:#111113;--surface:#1c1c1f;--text:#ececef;--muted:#9a9aa2;--border:#2e2e33;--danger-bg:#3a1a21;--danger:#ff8095}}*{box-sizing:border-box}body{background:var(--bg);min-height:100vh;margin:0}button,input{font:inherit;color:inherit}.app{max-width:560px;margin:0 auto;padding:64px 16px}.app-header h1{letter-spacing:-.02em;margin:0;font-size:2.25rem}.subtitle{color:var(--muted);margin:4px 0 24px;font-size:.9rem}.card{background:var(--surface);border:1px solid var(--border);border-radius:12px;overflow:hidden}.todo-form{border-bottom:1px solid var(--border);gap:8px;padding:12px;display:flex}.todo-input,.todo-edit{border:1px solid var(--border);background:0 0;border-radius:8px;outline:none;flex:1;min-width:0;padding:10px 12px}.todo-input:focus,.todo-edit:focus{border-color:var(--accent)}.btn{cursor:pointer;border:none;border-radius:8px;padding:10px 16px;font-weight:600}.btn-primary{background:var(--accent);color:#fff}.btn-primary:hover:not(:disabled){background:var(--accent-hover)}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-icon{cursor:pointer;color:var(--muted);background:0 0;border:none;border-radius:6px;padding:4px 8px;font-size:1.25rem;line-height:1}.btn-icon:hover{color:var(--danger)}.btn-link{cursor:pointer;color:var(--muted);background:0 0;border:none;padding:0}.btn-link:hover:not(:disabled){text-decoration:underline}.btn-link:disabled{opacity:.4;cursor:default}.todo-list{margin:0;padding:0;list-style:none}.todo-item{border-bottom:1px solid var(--border);align-items:center;gap:12px;padding:10px 12px;display:flex}.todo-item .btn-icon{opacity:0}.todo-item:hover .btn-icon,.todo-item .btn-icon:focus-visible{opacity:1}.todo-check{width:18px;height:18px;accent-color:var(--accent);cursor:pointer;flex-shrink:0}.todo-title{overflow-wrap:anywhere;cursor:text;flex:1;min-width:0;padding:10px 0}.is-done .todo-title{color:var(--muted);text-decoration:line-through}.empty{text-align:center;color:var(--muted);margin:0;padding:32px 16px}.error{background:var(--danger-bg);color:var(--danger);border-radius:8px;justify-content:space-between;align-items:center;gap:8px;margin:12px;padding:8px 12px;font-size:.9rem;display:flex}.todo-footer{color:var(--muted);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:8px;padding:10px 12px;font-size:.85rem;display:flex}.filters{gap:4px;display:flex}.filter{cursor:pointer;text-transform:capitalize;color:var(--muted);background:0 0;border:1px solid #0000;border-radius:6px;padding:2px 8px}.filter:hover{border-color:var(--border)}.filter.is-active{border-color:var(--accent);color:var(--text)}.hint{text-align:center;color:var(--muted);margin-top:16px;font-size:.8rem}