:root {
    --color-1: #0f1016;
    --text-color: #f0f0f0;
    --accent-color: #006aff;
    --text-border-color: #b1b1b1;
    --text-input-color: #565656;
}

* {
    margin: 0;
    padding: 0;
}

html {
    font-size: 12px;
    font-family: Poppins, Segoe UI, Tahoma, sans-serif;
}

/* Header */

.burger-header {
    height: 60px;
    background-color: var(--color-1);
    display: flex;
    justify-content: flex-start;
    align-items: center;
}

.burger-header .site-title {
    font-size: 3rem;
    color: var(--text-color);
    padding: 1.5rem;
    margin-left: auto;
}

/* Burger Menu */

.links-container {
    height: 100%;
    width: 200px;
    position: fixed;
    top: 0;
    left: -100%;
    z-index: 10;

    background-color: var(--color-1);
    font-size: 2rem;

    flex-direction: column;
    align-items: center;
    transition: 0.5s ease-out;
}

.burger-header a {
    height: auto;
    width: 100%;
    padding: 20px 30px;
    text-align: right;
    box-sizing: border-box;
    display: flex;
    align-items: center;
    justify-content: flex-end;
    text-decoration: none;
    color: var(--text-color);
}

.burger-header a:hover {
    background-color: var(--accent-color);
}

.burger-header svg {
    fill: var(--text-color)
}

.burger-header svg {
    fill: var(--text-color);
    cursor: pointer;
}

#sidebar-active {
    display: none;
}

.open-sidebar-button,
.close-sidebar-button {
    padding: 1.5rem;
    display: block;
}

#sidebar-active:checked~.links-container {
    left: 0;
}

/* Page Body */

.page-body {
    padding-top: 2rem;
    display: flex;
    flex-direction: column;
}

/* Nav Tabs */

.tabs {
    display: flex;
    justify-content: center;
    margin: 2.5rem 0 0 0;
}

.tabs>ul {
    margin: 0;
}

.tabs>ul>li {
    display: inline-block;
    margin: 0 0.35em 0 0.35em;
}

.tabs>ul>li>ul {
    display: none;
}

.tabs>ul>li>a {
    border-radius: 5px;
    font-size: 1.5rem;
    color: var(--color-1);
    text-decoration: none;
    padding: 0.6em 1.2em 0.6em 1.2em;
    -moz-transition: background-color .25s ease-in-out;
    -webkit-transition: background-color .25s ease-in-out;
    -ms-transition: background-color .25s ease-in-out;
    transition: background-color .25s ease-in-out;
    outline: 0;
}

.tabs>ul>li:hover>a,
.tabs>ul>li.active>a {
    background: #f3f3f3;
}

.tabs>ul>li.current>a {
    background: var(--accent-color);
    color: var(--text-color) !important;
    font-weight: 700;
}

/* Page Body */

.page-body h1 {
    font-size: 4rem;
    display: flex;
    justify-content: center;
}

/* About Text */

.about-text {
    padding-top: 2rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.about-text h1 {
    font-size: 3rem;
    display: flex;
    justify-content: center;
}

.about-text p {
    font-size: 1.6rem;
    padding-top: 1rem;
    margin-left: 15%;
    margin-right: 15%;
    display: flex;
    text-wrap: wrap;
}

.about-text img {
    margin-left: 15%;
    padding: 5px;
    width: 20rem;
    height: auto;
}

/* Input */

.predict-input {
    padding-top: 2rem;
    margin-left: 15%;
    margin-right: 15%;
    margin-bottom: 1rem;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.predict-input h1 {
    font-size: 2rem;
    color: var(--accent-color);
}

.predict-input input[type=text] {
    width: 98%;
    padding: 0.8rem 1rem;
    color: var(--text-input-color);
    font-size: 1.4rem;
    border-radius: 8px;
    border: 1px solid var(--text-border-color);
    -webkit-transition: 0.5s;
    transition: 0.5s;
    outline: none;
}

.predict-input input[type=text]:focus {
    outline: none;
    border-radius: 8px;
    border: 1px solid var(--accent-color);
    box-shadow: 0 0 0 3px var(--accent-color);
}

#smiles {
    width: 98%;
    height: 15rem;
    color: var(--text-input-color);
    font-size: 1.6rem;
    overflow: auto;
    padding: 1rem 1rem;
    border-radius: 8px;
    border: 1px solid var(--text-border-color);
    -webkit-transition: 0.5s;
    transition: 0.5s;
    outline: none;
}

#smiles:focus {
    outline: none;
    border-radius: 8px;
    border: 1px solid var(--accent-color);
    box-shadow: 0 0 0 3px var(--accent-color);
    appearance: none;
}

#moleweight {
    width: 98%;
    height: 15rem;
    color: var(--text-input-color);
    font-size: 1.6rem;
    overflow: auto;
    padding: 1rem 1rem;
    border-radius: 8px;
    border: 1px solid var(--text-border-color);
    -webkit-transition: 0.5s;
    transition: 0.5s;
    outline: none;
}

#moleweight:focus {
    outline: none;
    border-radius: 8px;
    border: 1px solid var(--accent-color);
    box-shadow: 0 0 0 3px var(--accent-color);
    appearance: none;
}

#moleweight-desc {
    margin-bottom: 0;
}

#desc {
    margin-top: 0;
}

#pH {
    width: 98%;
    height: 15rem;
    color: var(--text-input-color);
    font-size: 1.6rem;
    overflow: auto;
    padding: 1rem 1rem;
    border-radius: 8px;
    border: 1px solid var(--text-border-color);
    -webkit-transition: 0.5s;
    transition: 0.5s;
    outline: none;
}

#pH:focus {
    outline: none;
    border-radius: 8px;
    border: 1px solid var(--accent-color);
    box-shadow: 0 0 0 3px var(--accent-color);
    appearance: none;
}

#T {
    width: 98%;
    height: 15rem;
    color: var(--text-input-color);
    font-size: 1.6rem;
    overflow: auto;
    padding: 1rem 1rem;
    border-radius: 8px;
    border: 1px solid var(--text-border-color);
    -webkit-transition: 0.5s;
    transition: 0.5s;
    outline: none;
}

#T:focus {
    outline: none;
    border-radius: 8px;
    border: 1px solid var(--accent-color);
    box-shadow: 0 0 0 3px var(--accent-color);
    appearance: none;
}

.predict-input select {
    width: 100%;
    padding: 0.8rem 1rem;
    color: var(--text-input-color);
    font-size: 1.4rem;
    border-radius: 8px;
    border: 1px solid var(--text-border-color);
    -webkit-transition: 0.5s;
    transition: 0.5s;
    outline: none;
}

.predict-input select:focus {
    outline: none;
    border-radius: 8px;
    border: 1px solid var(--accent-color);
    box-shadow: 0 0 0 3px var(--accent-color);
    appearance: none;
}

.predict-input select:disabled {
    color: var(--text-input-color);
    background-color: var(--text-color);
}

.submit-button {
    margin-top: 2rem;
    margin-bottom: 0.5rem;
    position: relative;
    padding: 10px 15px;
    font-size: 1.4rem;
    text-decoration: none;
    color: var(--text-color);
    background-color: var(--accent-color);
    border: none;
    border-radius: 8px;
    transition-duration: 0.4s;
}

.submit-button:hover {
    background-color: #024eb9;
    cursor: pointer;
}

.button__text {
    color: var(--text-color);
    transition: all 0.2s;
}

.button--loading .button__text {
    visibility: hidden;
    opacity: 0;
}

.button--loading::after {
    content: "";
    position: absolute;
    width: 16px;
    height: 16px;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    margin: auto;
    border: 4px solid transparent;
    border-top-color: var(--text-color);
    border-radius: 50%;
    animation: spin 0.7s linear infinite;
}

@keyframes spin {
    0% {
        transform: rotate(0deg);
    }

    100% {
        transform: rotate(360deg);
    }
}

/* Input Texts and Sections */

.predict-input p {
    font-size: 1.4rem;
    margin-top: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--color-1);
}

.input-section {
    width: 100%;
    padding-left: 2%;
    padding-right: 2%;
    padding-top: 2%;
    padding-bottom: 0.5%;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    border: 1px solid #b1b1b1;
    border-radius: 8px;
    box-shadow: 0 0 5px 5px #cecece;
}

/* CSV Input */

.upload-container {
    border: 1px solid var(--text-border-color);
    border-radius: 8px;
    width: 98%;
}

.predict-input [type=file]::file-selector-button {
    font-size: 1.4rem;
    background-color: #dadada;
    color: var(--text-input-color);
    border: 0px;
    border-right: 1px solid var(--text-border-color);
    border-top-left-radius: 5px;
    border-bottom-left-radius: 5px;
    padding: 10px 15px;
    margin-right: 20px;
    transition: .5s;
}

.predict-input [type=file]::file-selector-button:hover {
    background-color: #bcbcbc;
    border: 0px;
    border-right: 1px solid var(--text-border-color);
}

/* Output Section */

.output-section {
    width: 100%;
    height: 40rem;
    padding-left: 2%;
    padding-right: 2%;
    padding-top: 2%;
    padding-bottom: 2%;
    margin-top: 2rem;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    border: 1px solid #b1b1b1;
    border-radius: 8px;
    box-shadow: 0 0 5px 5px #cecece;
}

.empty-output {
    height: 100%;
    width: 100%;
    margin-top: 1.5rem;
    background-color: #f2f2f2;
    font-size: 1.2rem;
    color: #8c8c8c;
    display: flex;
    justify-content: center;
    align-items: center;
    border-radius: 8px;
}

/* Table Styling */

.table-container {
    width: 98%;
    margin-top: 1.5rem;
    height: 35rem;
    overflow: scroll;
}

.table-container::-webkit-scrollbar {
    width: 7px;
    height: 7px;
}

.table-container::-webkit-scrollbar-thumb {
    background-color: var(--text-input-color);
    border-radius: 10px;
}

.table-container::-webkit-scrollbar-track {
    background-color: var(--text-color);
}

.output-table {
    border-collapse: collapse;
    margin: 25px 0;
    font-size: 1.4em;
    font-family: sans-serif;
    min-width: 400px;
}

.output-table thead tr {
    background-color: var(--accent-color);
    color: #ffffff;
    text-align: left;
}

.output-table th,
.output-table td {
    padding: 12px 15px;
}

.output-table tbody tr {
    border-bottom: 1px solid #dddddd;
}

.output-table tbody tr:nth-of-type(even) {
    background-color: #f3f3f3;
}

.output-table tbody tr:last-of-type {
    border-bottom: 2px solid var(--accent-color);
}

header {
    margin: 0 0 1.5em 0;
}

header>p {
    display: block;
    font-style: italic;
    margin: 0.5em 0 0 0;
    padding-bottom: 0.5em;
}

header.major {
    position: relative;
    text-align: center;
    border-top: solid 1px #ccc;
    top: 1em;
    margin: 0 0 3em 0;
}

header.major h2 {
    background: #fff;
    position: relative;
    font-size: 4rem;
    top: -0.65em;
    display: inline;
    margin: 0;
    padding: 0 1em 0 1em;
}

.grid-menu {
    margin-left: 15%;
    margin-right: 15%;
    margin-bottom: 5rem;
    display: grid;
    grid-template-columns: 1fr 1fr;
    column-gap: 60px;
}

.grid-inner {
    width: 100%;
    display: flex;
    justify-content: center;
}

.grid-item {
    padding-bottom: 2%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    border: 1px solid #b1b1b1;
    border-radius: 8px;
    box-shadow: 0 0 2px 2px #e7e7e7;
}

.grid-inner img {
    width: 100%;
    height: 20rem;
    object-fit: cover;
    border-top-left-radius: 8px;
    border-top-right-radius: 8px;
}

.grid-item h3 {
    margin-top: 2%;
    margin-left: 2%;
    margin-right: 2%;
    font-size: 2rem;
}

.grid-item p {
    margin-top: 2%;
    margin-bottom: 2%;
    margin-left: 2%;
    margin-right: 2%;
    font-size: 1.5rem;
}

.menu-about-button {
    margin-left: 2%;
    margin-bottom: 1%;
    position: relative;
    padding: 10px 15px;
    font-size: 1.5rem;
    text-decoration: none;
    color: var(--text-color);
    background-color: var(--color-1);
    border: none;
    border-radius: 8px;
    font-weight: bold;
}

.menu-about-button:hover {
    background-color: #252735;
    cursor: pointer;
}

.intro-para {
    margin-left: 15%;
    margin-right: 15%;
    margin-bottom: 5rem;
    font-size: 1.5rem;
}