style.css

/* CSS Reset */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html, body {
    height: 100%;
    font-size: 100%;
    line-height: 1.5;
}

body {
    font-family: 'Lato', sans-serif;
    background-color: #f0f0f0;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
    padding: 20px;
}

/* Main container styles */
#container {
    background-color: #ffffff;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0px 4px 8px rgba(0, 0, 0, 0.1);
    width: 600px;
    max-width: 100%;
    text-align: center;
}

/* Heading styles */
h1 {
    font-size: 24px;
    margin-bottom: 20px;
    color: #333;
}

/* Task input container styles */
.task-input {
    display: flex;
    flex-direction: column;
    background-color: #f7f7f7;
    padding: 15px;
    border-radius: 10px;
    box-shadow: 0px 4px 8px rgba(0, 0, 0, 0.1);
    margin-bottom: 20px;
}

/* Input field styles */
input[type="text"] {
    width: 100%;
    padding: 10px;
    margin-bottom: 10px;
    border-radius: 5px;
    border: 1px solid #ccc;
    font-size: 16px;
}

/* Container for category select and add button using Grid */
.input-controls {
    display: grid;
    grid-template-columns: 3fr 1fr;
    gap: 10px;
    align-items: center;
}

/* Select field styles */
select {
    width: 100%;
    padding: 10px;
    border-radius: 5px;
    border: 1px solid #ccc;
    font-size: 16px;
    color: #888;
    background-color: #fff;
    background-image: linear-gradient(45deg, transparent 50%, #333 50%), linear-gradient(135deg, #333 50%, transparent 50%);
    background-position: calc(100% - 15px) center, calc(100% - 10px) center;
    background-size: 5px 5px, 5px 5px;
    background-repeat: no-repeat;
    appearance: none;
}

/* Button styles */
button {
    padding: 10px;
    border: none;
    border-radius: 5px;
    background-color: #5a67d8;
    color: white;
    font-size: 16px;
    cursor: pointer;
    white-space: nowrap;
    width: 100%;
}

/* Button hover effect */
button:hover {
    background-color: #4c51bf;
}

/* Task list container styles */
#task-list {
    max-height: 500px;
    overflow-y: auto;
    padding: 15px;
    margin-top: 5px;
    border: 1px solid #ccc;
    border-radius: 5px;
    box-shadow: 0px 4px 8px rgba(0, 0, 0, 0.1);
}

/* Task item styles */
#task-list li {
    display: grid;
    grid-template-columns: 2fr auto auto auto auto; /* Desktop version layout */
    align-items: center;
    padding: 10px;
    border-bottom: 1px solid #ddd;
    gap: 5px;
}

/* Styles for task text */
#task-list li span {
    font-size: 16px;
    text-align: left;
    color: #4c51bf;
}

/* Styles for task category */
#task-list li .category {
    font-style: italic;
    color: #666;
    margin-left: 0;
}

/* Styles for task buttons */
#task-list li .complete-button,
#task-list li .edit-button,
#task-list li .delete-button {
    display: inline-block;
    font-size: 14px;
    padding: 5px 10px;
    border-radius: 5px;
    margin: 5px;
    width: auto; /* Auto width for desktop view */
    text-align: center;
}

/* Complete button */
#task-list li .complete-button {
    background-color: #2ecc71;
}

#task-list li .complete-button:hover {
    background-color: #27ae60;
}

/* Edit button */
#task-list li .edit-button {
    background-color: #3498db;
}

#task-list li .edit-button:hover {
    background-color: #2980b9;
}

/* Delete button */
#task-list li .delete-button {
    background-color: #e74c3c;
}

#task-list li .delete-button:hover {
    background-color: #c0392b;
}

/* Flexbox container for sorting and deleting */
.sort-delete-container {
    display: grid;
    grid-template-columns: 3fr 1fr;
    gap: 10px;
    align-items: center;
    margin: 10px 0;
    padding: 5px 17px;
    background-color: #f9f9f9;
    border-radius: 5px;
    box-shadow: 0px 2px 4px rgba(0, 0, 0, 0.1);
}

/* Sorting task styles */
.sort-tasks {
    display: flex;
    align-items: center;
}

.sort-tasks label {
    margin-right: 5px;
    font-size: 14px;
}

.sort-tasks select {
    padding: 5px;
    border-radius: 5px;
    border: 1px solid #ccc;
    font-size: 14px;
}

/* Delete Completed button styles */
#delete-completed {
    padding: 5px 10px;
    border: none;
    border-radius: 5px;
    background-color: #e74c3c;
    color: white;
    cursor: pointer;
    font-size: 14px;
}

#delete-completed:hover {
    background-color: #c0392b;
}

/* Media Query for Tablets and Mobile Devices */
@media (max-width: 768px) {
    #task-list li {
        display: grid;
        grid-template-columns: 1fr; /* Single column layout for mobile view */
        grid-template-rows: auto auto auto; /* Three rows: task, category, buttons */
        grid-template-areas:
            "task"
            "category"
            "buttons"; /* Define areas */
        padding: 10px;
        gap: 10px; /* Space between task, category, and buttons */
    }

    /* Task text area */
    #task-list li span {
        grid-area: task; /* Place task text in the task area */
    }

    /* Category area */
    #task-list li .category {
        grid-area: category; /* Place category in the category area */
        margin-top: 5px; /* Add top margin for separation */
    }

    /* Buttons area */
    #task-list li .complete-button,
    #task-list li .edit-button,
    #task-list li .delete-button {
        grid-area: buttons; /* Place buttons in the buttons area */
        display: block; /* Block for full-width buttons */
        width: 100%; /* Ensure all buttons take full width */
        margin: 5px 0; /* Margin for spacing */
    }
}