*,*:before,*:after{box-sizing:border-box}:root{font-family:system-ui,sans-serif;color-scheme:light dark}body{margin:0;min-height:100vh;background:#f5f5f5;color:#1a1a1a}@media (prefers-color-scheme: dark){body{background:#1a1a1a;color:#f5f5f5}}.app{max-width:480px;margin:48px auto;padding:0 16px}h1{font-size:2rem;font-weight:700;margin:0 0 24px;text-align:center}.add-form{display:flex;gap:8px;margin-bottom:24px}.add-input{flex:1;padding:10px 14px;font-size:1rem;border:1px solid #ccc;border-radius:8px;outline:none;background:#fff;color:#1a1a1a}.add-input:focus{border-color:#4f46e5;box-shadow:0 0 0 2px #4f46e533}@media (prefers-color-scheme: dark){.add-input{background:#2a2a2a;color:#f5f5f5;border-color:#444}.add-input:focus{border-color:#818cf8;box-shadow:0 0 0 2px #818cf84d}}.add-btn{display:flex;align-items:center;justify-content:center;padding:10px 16px;border:none;border-radius:8px;background:#4f46e5;color:#fff;cursor:pointer;transition:background .15s}.add-btn:hover{background:#4338ca}.empty{text-align:center;color:#888;font-size:.95rem}.task-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:6px}.task{display:flex;align-items:center;gap:10px;padding:10px 12px;background:#fff;border-radius:8px;border:1px solid #e5e5e5;transition:box-shadow .15s}.task:hover{box-shadow:0 2px 8px #0000000f}@media (prefers-color-scheme: dark){.task{background:#2a2a2a;border-color:#333}.task:hover{box-shadow:0 2px 8px #0000004d}}.task.done .task-text{text-decoration:line-through;color:#999}.task-text{flex:1;font-size:.95rem}.toggle-btn,.delete-btn{display:flex;align-items:center;justify-content:center;padding:4px;border:none;background:none;cursor:pointer;border-radius:4px;color:#666;transition:color .15s,background .15s}.toggle-btn:hover{color:#4f46e5;background:#4f46e514}.delete-btn:hover{color:#ef4444;background:#ef444414}@media (prefers-color-scheme: dark){.toggle-btn,.delete-btn{color:#999}}.counter{margin-top:12px;font-size:.85rem;color:#888;text-align:center}