*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,sans-serif;background:linear-gradient(135deg,#a8edea,#fed6e3);min-height:100vh;display:flex;justify-content:center;align-items:center;padding:16px;margin:0}.todo-app{width:100%;max-width:600px;animation:fadeIn .5s ease-in}@keyframes fadeIn{0%{opacity:0;transform:translateY(-20px)}to{opacity:1;transform:translateY(0)}}.container{background:#ffffffeb;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border-radius:24px;padding:32px 24px;box-shadow:0 20px 60px #00000014;border:1px solid rgba(255,255,255,.3)}h1{text-align:center;font-size:28px;color:#333;margin-bottom:24px}.input-area{display:flex;gap:10px;margin-bottom:20px}.todo-input{flex:1;padding:14px 16px;border:2px solid #e8e8e8;border-radius:12px;font-size:16px;transition:all .3s ease;background:#f8f9fa;-webkit-appearance:none}.todo-input:focus{outline:none;border-color:#a8edea;background:#fff;box-shadow:0 0 0 4px #a8edea33}.add-btn{padding:14px 24px;background:linear-gradient(135deg,#a8edea,#fed6e3);color:#555;border:none;border-radius:12px;font-size:16px;font-weight:600;cursor:pointer;transition:all .3s ease;white-space:nowrap;-webkit-tap-highlight-color:transparent}.add-btn:active{transform:scale(.95)}.empty-state{text-align:center;padding:40px 20px;color:#999}.empty-icon{font-size:48px;display:block;margin-bottom:16px}.empty-state p{font-size:18px;margin-bottom:4px}.empty-hint{font-size:14px;color:#bbb}.todo-list{list-style:none;margin:0;max-height:500px;overflow-y:auto;padding-right:4px;-webkit-overflow-scrolling:touch}.todo-list::-webkit-scrollbar{width:4px}.todo-list::-webkit-scrollbar-track{background:#f1f1f1;border-radius:10px}.todo-list::-webkit-scrollbar-thumb{background:#ccc;border-radius:10px}.todo-list li{display:flex;align-items:center;padding:14px 16px;background:#f8f9fa;border-radius:12px;margin-bottom:10px;transition:all .3s ease;gap:12px;-webkit-tap-highlight-color:transparent}.todo-list li:active{transform:scale(.98)}.todo-content{flex:1;display:flex;flex-direction:column;gap:4px;min-width:0}.todo-text{font-size:16px;color:#333;word-break:break-word;cursor:pointer;padding:4px 0;line-height:1.5;touch-action:manipulation}.todo-time{font-size:12px;color:#bbb;display:flex;align-items:center;gap:4px}.edit-input{flex:1;padding:10px 12px;border:2px solid #a8edea;border-radius:8px;font-size:16px;background:#fff;outline:none;box-shadow:0 0 0 4px #a8edea33;-webkit-appearance:none}.delete-btn{width:36px;height:36px;background:#ffb3b3;color:#fff;border:none;border-radius:50%;font-size:22px;cursor:pointer;transition:all .3s ease;display:flex;align-items:center;justify-content:center;flex-shrink:0;-webkit-tap-highlight-color:transparent}.delete-btn:active{transform:scale(.85);background:#ff8a8a}@media (max-width: 480px){body{padding:20px 10px 10px;align-items:flex-start}.container{padding:20px 16px;border-radius:20px}h1{font-size:24px;margin-bottom:20px}.input-area{flex-direction:column;gap:10px}.todo-input{padding:16px 14px;font-size:16px;border-radius:12px}.add-btn{padding:16px;font-size:16px;border-radius:12px;justify-content:center;width:100%}.todo-list li{padding:14px 12px;gap:10px;border-radius:12px}.todo-content{gap:2px}.todo-text{font-size:15px}.todo-time{font-size:11px}.edit-input{font-size:15px;padding:8px 10px;flex:1}.delete-btn{width:40px;height:40px;font-size:24px;flex-shrink:0}.empty-state{padding:30px 16px}.empty-icon{font-size:40px}.empty-state p{font-size:16px}}@media (min-width: 481px) and (max-width: 768px){body{padding:20px}.container{padding:32px 28px}h1{font-size:28px}.input-area{flex-direction:row}.todo-input{padding:14px 16px}.add-btn{padding:14px 28px}.delete-btn{width:38px;height:38px;font-size:22px}}@media (max-height: 500px) and (orientation: landscape){body{padding:10px 20px;align-items:center}.container{padding:16px 24px;border-radius:16px}h1{font-size:20px;margin-bottom:12px}.input-area{flex-direction:row;gap:8px;margin-bottom:12px}.todo-input{padding:10px 14px;font-size:14px}.add-btn{padding:10px 20px;font-size:14px}.todo-list{max-height:200px}.todo-list li{padding:10px 12px;margin-bottom:6px}.todo-text{font-size:14px}.todo-time{font-size:10px}.delete-btn{width:32px;height:32px;font-size:18px}}@media (min-width: 769px) and (max-width: 1024px){.container{padding:40px 36px}.todo-list li{padding:16px 18px}}@media (hover: none) and (pointer: coarse){.todo-list li:hover{transform:none;background:#f8f9fa}.todo-text:hover{color:#333}.delete-btn:hover{transform:none;background:#ffb3b3}.todo-text{padding:8px 0}.delete-btn{min-width:44px;min-height:44px}}@supports (padding: max(0px)){.container{padding-left:max(24px,env(safe-area-inset-left));padding-right:max(24px,env(safe-area-inset-right))}}