style.css

/* Kanban Board */
* {
    padding: 0;
    margin: 0;
    box-sizing: border-box;
    font-family: sans-serif;

    -ms-overflow-style: none;
    scrollbar-width: none;
}

*::-webkit-scrollbar {
    display: none;
}

.board {
    width: 100%;
    height: 100vh;
    overflow: hidden;

    background-image: url(https://images.unsplash.com/photo-1696332331308-8a064129a487?ixlib=rb-4.0.3&ixid=M3wxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8fA%3D%3D&auto=format&fit=crop&w=1740&q=80);
    background-position: center;
    background-size: cover;
}

/* -- Kanban FORM */
#todo-form {
    padding: 32px 32px 0;
}

#todo-form button {
    padding: 12px 32px;

    border-radius: 4px;
    border: none;

    box-shadow: 0px 5px 15px rgba(0, 0, 0, 0.25);
    background-color: white;
    color: black;

    font-weight: bold;
    font-size: 14px;
    cursor: pointer;
}

/* -- Kanban board */
#task-lists {
    display: flex;
    align-items: flex-start;
    justify-content: start;
    gap: 16px;

    padding: 24px 32px;
    float: none;

    white-space: nowrap;
    overflow-x: scroll;
    overflow-y: hidden;
}

.list-heading-text {
    display: inline-flex;
    margin-bottom: 8px;
}

.list-heading-inner-text {
    margin-bottom: 8px;
}

.list-heading,
.list-heading-inner-text {
    font-size: 22px;
    display: inline-flex;
    margin-bottom: none;
}

.list-heading-input {
    border: none;
    width: 90%;
    background: transparent;
    font-size: 22px;
    font-weight: bold;
    height: 26px;
}

.list-delete-span {
    border: none;
    display: inline;
    color: black;
    float: right;
    font-size: 22px;
    height: 22px;
    margin-left: 1rem;
}

.list-delete-span:hover,
.list-delete-span:focus {
    color: grey;
    text-decoration: none;
    cursor: pointer;
}

.list-heading-input:focus {
    outline: none !important;
    border: 1px solid grey;
    box-shadow: 0 0 4px #719ece;
}

.swim-list {
    display: flex;
    flex-direction: column;
    gap: 12px;

    background: #f4f4f4;
    box-shadow: 0px 5px 15px rgba(0, 0, 0, 0.25);

    padding: 12px;
    border-radius: 4px;
    width: 225px;
    min-height: 100px;
    max-height: 80vh;

    flex-shrink: 0;
}

.list-content {
    min-height: 48px;
    height: 100%;
    overflow-y: scroll;
}

#list-add-btn {
    border: none;
    border-radius: 4px;
    width: 180px;
    font-size: 18px;
}

#list-add-btn:hover {
    box-shadow: 0px 5px 15px inset rgba(0, 0, 0, 0.05);
    cursor: pointer;
}

.task {
    display: flex;
    background: white;
    box-shadow: 0px 5px 15px rgba(0, 0, 0, 0.1);

    padding: 12px;
    margin: 0 4px 10px 4px;
    border-radius: 4px;

    cursor: move;
}

.task .task-title {
    font-size: 16px;
    width: 90%;
    max-width: 90%;
    max-height: 100px;
    text-wrap: pretty;
    color: black;
    overflow-x: hidden;
}

.task .task-edit {
    border: none;
    margin: 0 8px;
    background: transparent;
}

.task .task-edit:hover {
    background-color: rgb(241, 241, 241);
    border: 1px solid rgb(241, 241, 241);
    border-radius: 16px;

    cursor: pointer;
}

.is-dragging {
    scale: 1.05;
    box-shadow: 0px 5px 15px rgba(0, 0, 0, 0.15);
    background: rgb(50, 50, 50);
    color: white;
}

/* Error Modal */
#error-modal {
    display: none; /* Hidden by default */
    position: fixed; /* Stay in place */
    z-index: 3; /* Sit on top */
    left: 0;
    top: 0;
    width: 100%; /* Full width */
    height: 100%; /* Full height */
    overflow: auto; /* Enable scroll if needed */
    background-color: rgb(0, 0, 0); /* Fallback color */
    background-color: rgba(0, 0, 0, 0.4); /* Black w/ opacity */
    backdrop-filter: blur(2px);
}

/* Modal Header */
#error-modal-body {
    z-index: 2;
    position: relative;
    background-color: #fefefe;
    margin: auto;
    padding: 0;
    border: 1px solid #888;
    min-width: 40%;
    max-width: 70%;
    top: 15%;
    box-shadow: 0 4px 8px 0 rgba(0, 0, 0, 0.2), 0 6px 20px 0 rgba(0, 0, 0, 0.19);
    animation-name: animatetop;
    animation-duration: 0.35s;
}

#error-modal-content h1 {
    margin: 1rem;
    display: flex;
}

#error-modal-text {
    font-style: normal;
    font-size: 18px;
    width: 100%;
    margin: 1rem;
    color: black;
}

#error-modal-close {
    border: 1px solid darkgray;
    margin: 8px;
    width: 120px;
}

#error-modal-close:hover {
    background: gray;
}

/* The Modal (background) */
#modal {
    display: none; /* Hidden by default */
    position: fixed; /* Stay in place */
    z-index: 1; /* Sit on top */
    left: 0;
    top: 0;
    width: 100%; /* Full width */
    height: 100%; /* Full height */
    overflow: auto; /* Enable scroll if needed */
    background-color: rgb(0, 0, 0); /* Fallback color */
    background-color: rgba(0, 0, 0, 0.4); /* Black w/ opacity */
    backdrop-filter: blur(2px);
}

/* Modal Header */
#modal-header {
    padding: 2px 16px;
    background-color: #5cb85c;
    color: white;
}

#modal-header-top {
    display: flex;
}

#created-on {
    padding: 2px 6px;
    font-size: 14px;
    user-select: none;
}

#color-tag-option {
    padding: 2px 6px;
    font-size: 14px;
    user-select: none;
}

#color-selected {
    width: 32px;
    border-radius: 8px;
}

#due-date,
#color-selected {
    border: none;
}

/* Modal Body */
#modal-body {
    margin: 0.5rem;
    padding: 8px 16px;
}

#modal-options {
    display: inline-flex;
    margin-bottom: 8px;
    font-size: 16px;
    user-select: none;
}

#kind-option {
    border: none;
    border-radius: 4px;
    background-color: #f3f3f3;
    height: 24px;
}

#tag-option,
#due-date-option {
    padding: 0 8px;
}

/* Modal Content */
#modal-content {
    z-index: 2;
    position: relative;
    background-color: #fefefe;
    margin: auto;
    padding: 0;
    border: 1px solid #888;
    min-width: 40%;
    max-width: 70%;
    top: 15%;
    box-shadow: 0 4px 8px 0 rgba(0, 0, 0, 0.2), 0 6px 20px 0 rgba(0, 0, 0, 0.19);
    animation-name: animatetop;
    animation-duration: 0.35s;
}

#modal-content button {
    padding: 4px;
    margin-right: 0.5rem;
}

/* Add Animation */
@keyframes animatetop {
    from {
        top: -300px;
        opacity: 0;
    }
    to {
        top: 15%;
        opacity: 1;
    }
}

/* The Close Button */
#close {
    display: inline;
    color: white;
    float: right;
    font-size: 28px;
    font-weight: bold;
    margin-left: 1rem;
}

#close:hover,
#close:focus {
    color: black;
    text-decoration: none;
    cursor: pointer;
}

#task-title {
    color: white;
    background: none;
    border: none;
    width: 100%;
    font-size: 24px;
}

#task-title:focus {
    outline: none !important;
}

#task-desc {
    width: 100%;
    height: 150px;
    margin: 8px 0;
    padding: 12px 20px;
    box-sizing: border-box;
    border: 2px solid #ccc;
    border-radius: 4px;
    background-color: #f8f8f8;
    resize: none;
}

#task-desc:focus {
    outline: none !important;
    border: 1px solid grey;
    box-shadow: 0 0 4px #719ece;
}