* {
            margin: 0;
            padding: 0;
            font-family: 'Poppins', sans-serif;
            box-sizing: border-box;
        }

        body {
            background: url(bg1.jpg) no-repeat center center fixed;
            background-size: cover;  
            min-height: 100vh;
            display: flex;
            justify-content: center;
            align-items: center;
            padding: 20px;
        }

        .container {
            width: 100%;
            max-width: 600px;
        }

        .todo-app {
            background: rgba(0, 0, 0, 0.25);
            backdrop-filter: blur(12px);          
            -webkit-backdrop-filter: blur(12px);  
            padding: 40px 30px 70px;
            border-radius: 15px;
            box-shadow: 0 8px 25px rgba(248, 248, 249, 1.3);
            transition: transform 0.2s ease, box-shadow 0.2s ease;
            border: 1px solid rgba(255, 255, 255, 0.1);
        }

        .todo-app:hover {
            transform: translateY(-2px);
            box-shadow: 0 12px 30px rgba(0, 0, 0, 0.4);
        }

        .todo-app h2 {
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            margin-bottom: 20px;
            font-size: 1.8rem;
            font-weight: 600;
            text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
        }

        .todo-app h2 img {
            width: 32px;
            filter: drop-shadow(0 2px 3px rgba(0, 0, 0, 0.3));
        }

        .row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            background: rgba(255, 255, 255, 0.08);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            border-radius: 30px;
            padding-left: 20px;
            margin-bottom: 25px;
            box-shadow: inset 0 1px 4px rgba(255, 255, 255, 0.05),
                        0 4px 12px rgba(0, 0, 0, 0.2);
            width: 100%;
            border: 1px solid rgba(255, 255, 255, 0.1);
        }


        input {
            flex: 1;
            border: none;
            outline: none;
            background: transparent;
            padding: 14px;
            font-size: 16px;
            color: #fff;
            border-radius: 20px;
        }

        input::placeholder {
            color: rgba(255, 255, 255, 0.5);
        }

button {
    border: 1px solid #fff;
    outline: none;
    padding: 14px 23px;
    background: url("bg5.jpg") no-repeat center center;
    background-size: cover; 
    color: #fff;
    font-size: 15px;
    cursor: pointer;
    border-radius: 30px;
    transition: all 0.3s ease;
    margin-left: 10px;
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
}


        button:hover {
            background: rgba(0, 10, 13, 0.821);
            transform: scale(1.05);
            box-shadow: 0 0 12px rgba(173, 216, 230, 0.4);
        }


        @media (max-width: 480px) {
            .row {
                flex-direction: column;
                gap: 10px;
                padding: 15px;
            }
            button {
                width: 100%;
                margin-left: 0;
            }
            input {
                width: 100%;
            }
        }

        ul li {
            list-style: none;
            font-size: 17px;
            padding: 12px 8px 12px 50px;
            user-select: none;
            cursor: pointer;
            position: relative;
            border-radius: 8px;
            transition: background 0.2s ease;
            color: #fff;
            margin-bottom: 8px;
            backdrop-filter: blur(5px);
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.05);
        }

        ul li:hover {
            background: rgba(1, 22, 24, 0.23);
        }

        ul li::before {
            content: '';
            position: absolute;
            height: 28px;
            width: 28px;
            border-radius: 50%;
            background-image: url(circle.png);
            background-size: cover;
            background-position: center;
            top: 12px;
            left: 8px;
        }

        ul li.checked {
            color: rgba(255, 255, 255, 0.6);
            text-decoration: line-through;
        }

        ul li.checked::before {
            background-image: url(CheckedCircle.png);
        }

        ul li span {
            position: absolute;
            right: 10px;
            top: 50%;
            transform: translateY(-50%);
            width: 36px;
            height: 36px;
            font-size: 20px;
            color: #fff;
            line-height: 36px;
            text-align: center;
            border-radius: 50%;
            transition: background 0.2s ease, color 0.2s ease;
        }

        ul li span:hover {
            background: rgba(255, 255, 255, 0.15);
            color: #ff5945;
        }