/* General Styles */
body {
    font-family: 'Poppins', sans-serif;
    background: linear-gradient(135deg, #1e1e2f, #2a2a3b);
    color: white;
    text-align: center;
    margin: 0;
    padding: 0;
}

/* Main Container */
.container {
    max-width: 400px;
    margin: 50px auto;
    background: rgba(255, 255, 255, 0.1);
    padding: 20px;
    border-radius: 12px;
    box-shadow: 0px 0px 15px rgba(255, 255, 255, 0.2);
}

/* Input & Buttons */
.input-container {
    display: flex;
    gap: 10px;
    margin-bottom: 15px;
}

input {
    flex: 1;
    padding: 10px;
    border-radius: 6px;
    border: none;
    background: #f0f0f0;
}

.add-btn {
    background: #4CAF50;
    color: white;
    padding: 10px 15px;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    transition: 0.3s;
}

.add-btn:hover {
    background: #45a049;
}

/* Task List */
ul {
    list-style: none;
    padding: 0;
}

li {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: #2d2d3d;
    margin-top: 10px;
    padding: 12px;
    border-radius: 6px;
    transition: 0.3s;
}

li:hover {
    transform: scale(1.02);
}

.completed {
    text-decoration: line-through;
    color: #b3b3b3;
}

/* Filters */
.filters {
    margin: 15px 0;
}

.filters button {
    background: #555;
    color: white;
    border: none;
    padding: 8px 12px;
    border-radius: 6px;
    cursor: pointer;
    transition: 0.3s;
}

.filters button:hover {
    background: #777;
}

/* Responsive Design */
@media (max-width: 480px) {
    .container {
        width: 90%;
    }
}