*{margin:0;padding:0;box-sizing:border-box}body{font-family:Inter,Segoe UI,system-ui,-apple-system,sans-serif;background:linear-gradient(135deg,#f5f7fa,#c3cfe2);min-height:100vh;padding:20px;color:#2d3748;line-height:1.6}.todo-app{display:flex;justify-content:center;align-items:flex-start;min-height:100vh;padding:20px 0}.todo-container{width:100%;max-width:700px;background:#fff;border-radius:20px;padding:30px;box-shadow:0 20px 25px -5px #0000001a,0 10px 10px -5px #0000000a;overflow:hidden}.app-header{text-align:center;margin-bottom:30px}.app-header h1{font-size:2.5rem;font-weight:700;color:#2d3748;margin-bottom:8px;display:flex;align-items:center;justify-content:center;gap:12px}.app-header h1 .icon{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;width:50px;height:50px;border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:1.8rem}.subtitle{color:#718096;font-size:1.1rem;font-weight:400}.stats-bar{display:flex;justify-content:center;gap:40px;margin-bottom:30px;padding:15px;background:#f7fafc;border-radius:16px}.stat{text-align:center}.stat-number{display:block;font-size:2rem;font-weight:700;color:#667eea}.stat-label{font-size:.9rem;color:#718096;text-transform:uppercase;letter-spacing:.05em}.todo-form{margin-bottom:30px}.todo-form.adding .input-wrapper{transform:scale(1.02)}.input-wrapper{display:flex;gap:12px;transition:all .3s ease}.todo-input{flex:1;padding:18px 20px;border:2px solid #e2e8f0;border-radius:14px;font-size:1rem;transition:all .3s ease;outline:none;background:#fff;box-shadow:0 4px 6px -1px #0000000d}.todo-input:focus{border-color:#667eea;box-shadow:0 0 0 3px #667eea33}.add-button{padding:0 24px;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border:none;border-radius:14px;cursor:pointer;font-weight:600;transition:all .3s ease;display:flex;align-items:center;gap:8px;box-shadow:0 4px 6px -1px #667eea4d}.add-button:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 7px 14px #667eea66}.add-button:disabled{opacity:.7;cursor:not-allowed}.button-icon{font-size:1.2rem}.todo-list-container{position:relative;min-height:200px}.empty-state{text-align:center;padding:40px 20px;color:#a0aec0}.empty-icon{font-size:4rem;margin-bottom:16px;opacity:.7}.empty-state h3{font-size:1.5rem;margin-bottom:8px;color:#718096}.empty-state p{font-size:1rem}.todo-list{list-style:none;display:flex;flex-direction:column;gap:12px}.todo-item{padding:0;background:#fff;border-radius:14px;box-shadow:0 4px 6px -1px #00000014;animation:slideIn .3s ease;overflow:hidden;border:1px solid #e2e8f0;transition:all .3s ease}.todo-item:hover{transform:translateY(-2px);box-shadow:0 10px 15px -3px #00000026}.todo-item.removing{opacity:0;transform:translate(-100px)}.todo-content{display:flex;align-items:center;justify-content:space-between;padding:20px}.todo-text{flex:1;font-size:1.1rem;color:#2d3748;word-break:break-word;padding-right:15px;font-weight:500}.todo-actions{display:flex;gap:8px}.action-button{width:40px;height:40px;border-radius:10px;border:none;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .2s ease;background:#f7fafc}.action-button:hover{transform:scale(1.1)}.edit-button:hover{background:#e6fffa;color:#38b2ac}.delete-button:hover{background:#fff5f5;color:#f56565}.action-button .icon{transition:transform .2s ease}.action-button:hover .icon{transform:scale(1.2)}@keyframes slideIn{0%{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}@media (max-width: 768px){.todo-container{margin:10px;padding:20px;border-radius:16px}.app-header h1{font-size:2rem}.app-header h1 .icon{width:40px;height:40px;font-size:1.5rem}.input-wrapper{flex-direction:column}.add-button{padding:15px;justify-content:center}.todo-content{flex-direction:column;align-items:stretch;gap:15px}.todo-text{padding-right:0;text-align:center}.todo-actions{justify-content:center}.stats-bar{gap:20px}.stat-number{font-size:1.5rem}}@media (max-width: 480px){body{padding:10px}.todo-container{padding:20px 15px}.app-header h1{font-size:1.8rem}.subtitle{font-size:1rem}.todo-input{padding:15px}.stats-bar{flex-direction:column;gap:15px}.stat{display:flex;justify-content:space-between;align-items:center}.stat-number{font-size:1.3rem}}