body {
    font-family: 'Roboto', sans-serif;
    background-color: #f4f4f9; /* Light background */
    color: #000; /* Dark text */
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
}

header {
    background-color: #6200ea; /* Purple header */
    color: white;
    padding: 1rem;
    width: 100%;
    text-align: center;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.container {
    max-width: 600px;
    width: 90%; /* Allow for more width on smaller screens */
    margin: 2rem auto;
    background: white; /* Light container */
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.task-form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.task-form input, .task-form textarea, .task-form button {
    padding: 0.8rem;
    border: 1px solid #ddd;
    border-radius: 4px;
    width: 100%; /* Full width for inputs */
    font-size: 1rem;
}

.task-form button {
    background-color: #6200ea; /* Primary button color */
    color: white;
    cursor: pointer;
    transition: background-color 0.3s;
}

.task-form button:hover {
    background-color: #3700b3; /* Darker shade for hover */
}

.filter-buttons {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-top: 1rem;
}

.filter-buttons button {
    background-color: #6200ea; /* Default button color */
    color: white; /* Light button text */
    padding: 0.5rem 1rem;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.3s;
}

.filter-buttons button:hover {
    background-color: #3700b3; /* Darker hover effect */
}

.filter-buttons button.active {
    background-color: #3700b3; /* Active button color */
}

.task-list {
    margin-top: 1.5rem;
}

.task-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: #f9f9f9; /* Light task background */
    padding: 1rem;
    margin-bottom: 1rem;
    border-radius: 6px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.task-item.completed h3 {
    text-decoration: line-through;
    color: gray;
}

.task-details {
    flex: 1;
}

.task-actions button {
    background: none;
    border: none;
    cursor: pointer;
    color: #6200ea; /* Icon color */
    font-size: 1.2rem;
    margin-left: 0.5rem;
    transition: color 0.3s;
}

.task-actions button:hover {
    color: #3700b3; /* Darker icon color on hover */
}

.notification {
    position: fixed;
    bottom: 1rem;
    right: 1rem;
    background-color: #6200ea;
    color: white;
    padding: 0.8rem 1rem;
    border-radius: 4px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    font-size: 0.9rem;
    animation: fadeInOut 3s ease-in-out;
}

@keyframes fadeInOut {
    0% { opacity: 0; transform: translateY(10px); }
    10%, 90% { opacity: 1; transform: translateY(0); }
    100% { opacity: 0; transform: translateY(10px); }
}

.empty-state {
    text-align: center;
    color: gray;
    font-style: italic;
    margin-top: 1rem;
}

@media (max-width: 600px) {
    .filter-buttons {
        flex-direction: column; /* Stack buttons vertically */
    }

    .filter-buttons button {
        width: 100%; /* Full width for buttons */
        margin-bottom: 0.5rem; /* Space between buttons */
    }

    .task-item {
        flex-direction: column;
        align-items: flex-start;
    }

    .task-actions {
        margin-top: 0.5rem;
        display: flex;
        justify-content: flex-start;
    }

    .task-actions button {
        font-size: 1rem;
    }
}