style.css

:root {
    --dark-cloud: #264653;
    --teal: #2a9d8f;
    --light-yellow: #e9c46a;
    --light-orange: #f4a261;
    --light-red: #e76f51;
}

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

body {
    color: white;
    font-size: 16px;
    line-height: 1.3;
    background-color: skyblue;
    height: 100vh;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
}

a {
    height: 100%;
}

img {
    object-fit: cover;
    overflow: hidden;
    width: 100%;
    height: 100%;
}

button {
    color: white;
    background-color: var(--dark-cloud);
    border-radius: 0.5em;
    padding: 1em 2em;
    border: none;
    cursor: pointer;
}

input,
button {
    font-family: inherit;
    font-size: 100%;
    width: 150px;
    padding: 0;
    margin: 0;
    box-sizing: border-box;
}


#container {
    height: 100%;
    display: grid;
    grid-template-columns: 1fr 4fr;
    grid-template-rows: minmax(150px, 1fr) 5fr minmax(150px, 1fr);
    gap: 10px;
}

#header {
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--dark-cloud);
    grid-column: 1/2;
    text-align: center;
    grid-row: 1 /2;

}


.logo {
    height: auto;
    width: 100px;
}



#sidebar {
    background-color: var(--light-orange);
    grid-column: 1/2;
    grid-row: 2/3;
}

#sidebar ul {
    display: flex;
    flex-direction: column;
    width: 100%;
    padding: 20px;
    align-items: center;
    justify-content: center;
    list-style: none;
}

#sidebar fieldset {
    border: none;
}

form {
    height: 100%;
}

form legend {
    font-size: clamp(15px, 1.5vw, 80rem);
    font-weight: bold;
    color: var(--dark-cloud);
}

form ul li {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 100%;
    font-size: clamp(10px, 1.3vw, 60rem);
    color: var(--dark-cloud);
}


form ul>li {
    margin-bottom: 40px;
}

form ul li label {
    align-self: start;
}

ul li input {
    width: 100%;
    height: 4em;
    border: none;
    border-radius: 20px;
    border: 4px solid var(--light-yellow);
}

.titleName {
    position: relative;
}

ul li input:focus {
    outline-width: 0;
    outline: 4px solid var(--dark-cloud);
}

.submitBtn {
    height: 90px;
}

.submitBtn:hover {
    background-color: var(--teal);
    box-shadow: inset 0 -3em 3em rgba(0, 0, 0, 0.1), 0 0 0 2px rgb(255, 255, 255),
        0.3em 0.3em 1em rgba(0, 0, 0, 0.3);
}

.submitBtn:active {
    background-color: var(--dark-cloud);
}

#main {
    background-color: var(--light-yellow);
    grid-column: 2/3;
    grid-row: 1/4;

}

#footer {
    display: flex;
    justify-content: center;
    align-items: center;
    grid-column: 1 / 2;
    grid-row: 3 / 4;
    background-color: var(--dark-cloud);
}


.cardContainer {
    height: 100%;
    width: 100%;
    display: grid;
    padding: 10px;
    gap: 5px;
    grid-template-rows: repeat(2, 1fr);
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    overflow: scroll;
}

.card {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 10px;
    background-color: var(--teal);
    height: auto;
    border-radius: 5px;
    overflow: scroll;

}

.read {
    background-color: green;
}

.inputButtonDiv {
    display: flex;
}

.buttonHolders {
    width: 100%;
    display: flex;
    justify-content: space-around;
    gap: 20px;
}

.buttonHolders button {
    flex-shrink: 1;
}

.removeBook,
.statusBook {
    height: 100px;
}

.removeBook:hover {
    background-color: var(--light-red);
}

.removeBook:active {
    background-color: #3d1d15;
}





/* Toggle Input Stylings */
input[type="checkbox"].toggle {
    opacity: 0;
    position: absolute;
    cursor: pointer;
    left: -9000px;
    top: -9000px;
}

input[type="checkbox"].toggle+label {
    width: 100%;
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
}

input[type="checkbox"].toggle+label::before {
    content: "";
    width: 6em;
    height: 1.5em;
    background-color: hsl(0, 80%, 90%);
    border-radius: 1em;
    margin-right: .25em;
    transition: background-color 200ms ease-in-out;
}

input[type="checkbox"].toggle+label::after {
    display: flex;
    justify-content: center;
    align-items: center;
    position: absolute;
    content: "\2715";
    font-size: .51em;
    left: 4.2em;
    width: 5.4em;
    height: 2.3em;
    background-color: hsl(0, 80%, 60%);
    border: 1px solid black;
    color: white;
    border-radius: 2em;
    transition: background-color 200ms ease-in-out, transform 200ms ease-in-out;
}



input[type="checkbox"].toggle:focus+label::before {
    outline: 1px solid black;
}

input[type="checkbox"].toggle:checked+label::before {

    background-color: hsl(100, 39%, 72%);
}

input[type="checkbox"].toggle:checked+label::after {
    transform: translateX(100%);
    background-color: hsl(99, 76%, 51%);
    border: 1px solid black;
    animation: check-fade 200ms ease-in-out forwards;
}

@keyframes check-fade {
    0% {
        opacity: 1;
        content: "\2715";
    }

    50% {
        opacity: 0;
    }

    100% {
        opacity: 1;
        content: "\2713";
    }
}