*{box-sizing:border-box;margin:0;padding:0}body{font-family:-apple-system,BlinkMacSystemFont,Hiragino Sans,Yu Gothic,sans-serif;background:#f2f2f7;color:#1c1c1e;max-width:600px;margin:0 auto;padding-bottom:48px}.header{background:#2563eb;color:white;padding:20px 16px 16px;position:-webkit-sticky;position:sticky;top:0;z-index:10;box-shadow:0 2px 8px rgba(0,0,0,.15)}.header h1{font-size:20px;font-weight:700}.progress-row{display:flex;align-items:center;gap:10px;margin-top:10px}.progress-text{font-size:13px;opacity:.9;white-space:nowrap}.progress-bar-bg{flex:1 1;height:6px;background:rgba(255,255,255,.3);border-radius:3px;overflow:hidden}.progress-bar-fill{height:100%;background:white;border-radius:3px;transition:width .3s ease}.category{margin:20px 16px 0;background:white;border-radius:12px;overflow:hidden;box-shadow:0 1px 3px rgba(0,0,0,.08)}.category-header{display:flex;align-items:center;justify-content:space-between;padding:10px 16px;background:#f8f8f8;border-bottom:1px solid #ebebeb}.category-title{font-size:12px;font-weight:600;color:#6b7280;letter-spacing:.5px;text-transform:uppercase}.category-count{font-size:12px;color:#9ca3af}.item-list{list-style:none}.item{display:flex;align-items:center;padding:0 16px;min-height:52px;border-bottom:1px solid #f0f0f0;cursor:pointer;touch-action:manipulation;-webkit-tap-highlight-color:transparent;transition:background .1s}.item:last-child{border-bottom:none}.item:active{background:#f5f5f5}.checkbox{width:26px;height:26px;border:2px solid #d1d5db;border-radius:7px;display:flex;align-items:center;justify-content:center;margin-right:14px;flex-shrink:0;transition:all .15s;font-size:14px;font-weight:700}.item.checked .checkbox{background:#2563eb;border-color:#2563eb;color:white}.item-label{font-size:16px;line-height:1.4;transition:color .15s}.item.checked .item-label{color:#9ca3af;text-decoration:line-through}.reset-area{margin:24px 16px 0;text-align:center}.reset-button{background:none;border:1px solid #d1d5db;border-radius:8px;padding:10px 24px;font-size:14px;color:#6b7280;cursor:pointer;touch-action:manipulation;-webkit-tap-highlight-color:transparent}.reset-button:active{background:#f5f5f5}.complete-message{margin:20px 16px 0;background:#eff6ff;border:1px solid #bfdbfe;border-radius:12px;padding:16px;text-align:center;font-size:16px;color:#1d4ed8;font-weight:600}.loading{display:flex;justify-content:center;align-items:center;height:100vh;font-size:16px;color:#6b7280}