:root{--bg: #0f172a;--surface: #1e293b;--surface-hover: #263348;--border: #334155;--border-light: #475569;--text: #f1f5f9;--text-secondary: #94a3b8;--text-muted: #64748b;--accent: #818cf8;--accent-hover: #6366f1;--accent-glow: rgba(129, 140, 248, .15);--success: #34d399;--success-bg: rgba(52, 211, 153, .1);--danger: #f87171;--danger-hover: rgba(248, 113, 113, .15);color-scheme:dark;font-family:Inter,ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;line-height:1.6}*{box-sizing:border-box;margin:0;padding:0}html,body,#root{min-height:100vh;background:var(--bg);color:var(--text)}.shell{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:1.5rem;background:radial-gradient(ellipse at 20% 50%,rgba(129,140,248,.06) 0%,transparent 60%),radial-gradient(ellipse at 80% 20%,rgba(52,211,153,.04) 0%,transparent 50%),var(--bg)}.app-container{width:100%;max-width:28rem;background:var(--surface);border:1px solid var(--border);border-radius:1rem;padding:1.75rem;box-shadow:0 4px 6px -1px #0000004d,0 25px 50px -12px #00000080}.app-header{display:flex;align-items:center;gap:.875rem;margin-bottom:1.5rem}.header-icon{width:2.75rem;height:2.75rem;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,var(--accent),#a78bfa);border-radius:.75rem;font-size:1.25rem;color:#fff;font-weight:700;flex-shrink:0}.app-title{font-size:1.375rem;font-weight:700;letter-spacing:-.025em;color:var(--text)}.app-subtitle{font-size:.8rem;color:var(--text-muted);margin-top:-.125rem}.progress-section{margin-bottom:1.25rem}.progress-bar-track{height:.375rem;background:var(--border);border-radius:999px;overflow:hidden}.progress-bar-fill{height:100%;background:linear-gradient(90deg,var(--accent),var(--success));border-radius:999px;transition:width .4s cubic-bezier(.22,1,.36,1)}.progress-label{display:block;text-align:right;font-size:.7rem;color:var(--text-muted);margin-top:.375rem}.todo-form{display:flex;gap:.5rem;margin-bottom:1rem}.todo-input{flex:1;padding:.625rem .875rem;font-size:.875rem;font-family:inherit;border:1.5px solid var(--border);border-radius:.625rem;background:var(--bg);color:var(--text);outline:none;transition:border-color .2s,box-shadow .2s}.todo-input:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-glow)}.todo-input::placeholder{color:var(--text-muted)}.todo-btn{display:flex;align-items:center;gap:.25rem;padding:.625rem 1rem;font-size:.875rem;font-weight:600;font-family:inherit;border:none;border-radius:.625rem;background:linear-gradient(135deg,var(--accent),var(--accent-hover));color:#fff;cursor:pointer;transition:opacity .15s,transform .1s;white-space:nowrap}.todo-btn:hover:not(:disabled){opacity:.9}.todo-btn:active:not(:disabled){transform:scale(.97)}.todo-btn:disabled{opacity:.4;cursor:not-allowed}.btn-plus{font-size:1.1rem;line-height:1}.filters{display:flex;gap:.375rem;margin-bottom:1rem;flex-wrap:wrap}.filter-btn{display:flex;align-items:center;gap:.35rem;padding:.3rem .7rem;font-size:.75rem;font-weight:500;font-family:inherit;border:1.5px solid transparent;border-radius:999px;background:transparent;color:var(--text-muted);cursor:pointer;transition:all .15s}.filter-btn:hover{color:var(--text-secondary);background:var(--surface-hover)}.filter-btn.active{color:var(--accent);border-color:var(--accent);background:var(--accent-glow)}.filter-count{font-size:.65rem;font-weight:700;background:var(--border);color:var(--text-secondary);padding:.05rem .4rem;border-radius:999px;min-width:1.1rem;text-align:center}.filter-btn.active .filter-count{background:var(--accent);color:#fff}.clear-btn{margin-left:auto;padding:.3rem .7rem;font-size:.72rem;font-weight:500;font-family:inherit;border:1.5px solid transparent;border-radius:999px;background:transparent;color:var(--text-muted);cursor:pointer;transition:all .15s}.clear-btn:hover{color:var(--danger);border-color:var(--danger);background:var(--danger-hover)}.todo-list{list-style:none;display:flex;flex-direction:column;gap:.375rem}.todo-item{display:flex;align-items:center;gap:.625rem;padding:.625rem .75rem;border:1.5px solid var(--border);border-radius:.625rem;background:var(--bg);transition:all .2s;animation:slideIn .2s ease-out}@keyframes slideIn{0%{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:translateY(0)}}.todo-item:hover{border-color:var(--border-light);background:var(--surface-hover)}.todo-item.done{opacity:.6}.check-circle{width:1.375rem;height:1.375rem;border-radius:50%;border:2px solid var(--border-light);background:transparent;cursor:pointer;display:flex;align-items:center;justify-content:center;flex-shrink:0;transition:all .2s;padding:0}.check-circle:hover{border-color:var(--accent);background:var(--accent-glow)}.check-circle.checked{background:var(--success);border-color:var(--success)}.check-mark{color:#fff;font-size:.7rem;font-weight:700;line-height:1}.todo-text{flex:1;font-size:.875rem;color:var(--text);min-width:0;word-break:break-word;transition:all .2s}.todo-item.done .todo-text{text-decoration:line-through;color:var(--text-muted)}.todo-remove{background:none;border:none;color:transparent;font-size:.8rem;cursor:pointer;padding:.2rem;line-height:1;border-radius:.25rem;transition:all .15s;flex-shrink:0}.todo-item:hover .todo-remove{color:var(--text-muted)}.todo-remove:hover{color:var(--danger)!important;background:var(--danger-hover)}.empty-state{display:flex;flex-direction:column;align-items:center;padding:2rem 1rem;text-align:center}.empty-icon{font-size:2.5rem;margin-bottom:.75rem;opacity:.6}.empty-title{font-size:.95rem;font-weight:600;color:var(--text-secondary);margin-bottom:.25rem}.empty-hint{font-size:.8rem;color:var(--text-muted)}@media(max-width:480px){.shell{padding:3rem 1rem 1rem;align-items:flex-start}.app-container{padding:1.25rem}}