/* Requirements marked with (!) */
/*
    ============
    Base Styling
    ============
*/

html {
    scroll-behavior: smooth;
}

body {
    padding: 0px;
    margin: 0px;
    color: rgb(50, 59, 19);
    background: rgb(227, 230, 202);
    font-family: monospace;
}

header {
    position: fixed;
    top: 0;
    right: 10px;
    width: 15%;
    padding: 1rem;
    background: rgb(245, 240, 228);
    border-radius: 15px;
    border: 2px solid rgb(50, 59, 19);
    box-shadow: 3px 3px rgb(50, 59, 19);
}

header h1 {
    border-bottom: 3px solid rgb(87, 100, 21);
}

nav ul {
    padding: 0px;
    margin: 0px;
    list-style-type: none;
}

nav li {
    margin-left: 2rem;
}

nav a {
    text-decoration: none;
    color: rgb(50, 59, 19);
}

nav a:hover {
    color:rgb(110, 152, 110);
}

/* To adjust the size of the side-nav for smaller screens */
@media screen and (width <= 800px) {
    header {
        padding: 0.5rem;
    }

    header h1 {
        font-size: 1rem;
    }

    nav ul {
        text-align: left;
        font-size: 0.85rem;
    }

    nav li {
        margin-left: 0.5rem;
    }
}

section {
    width: 75%;
    margin: 1rem;
    padding: 1rem;
    background: rgb(245, 240, 228);
    border-radius: 15px;
    border: 2px solid rgb(50, 59, 19);
    box-shadow: 3px 3px rgb(50, 59, 19);
    overflow: auto;
}

section h1 {
    margin-left: 1rem;
    margin-right: 1rem;
    padding: 0.5rem 0rem 0.5rem 0.5rem;
    background: rgb(202, 209, 162);
    border-left: 5px solid rgb(87, 100, 21);
}

section > p {
    margin-left: 1rem;
    margin-right: 1rem;
}

article {
    margin: 1rem;
    padding: 1rem;
    background: rgb(237, 238, 212);
    border: 1px solid rgba(93, 158, 65, 0.5); 
}

article h2 {
    border-bottom: 3px solid rgb(87, 100, 21);
}

footer {
    width: 80%;
    text-align: center;
    margin-top: 2rem;
    margin-bottom: 5rem;
}

footer a {
    margin: auto;
    padding: 1rem 2rem 1rem 2rem;
    text-decoration: none;
    color: white;
    background: rgb(50, 59, 19);
    border-radius: 50px;
}

code {    
    padding: 0rem 0.1rem 0rem 0.1rem;
    color: rgb(117, 99, 99);
    background: rgb(238, 239, 228);
    border-radius: 5px;
    border: 1px solid rgba(0, 0, 0, 0.144);
}

.figure-wrapper {
    padding: 1rem;
    background: rgb(245, 243, 224);
    border: 1px dashed rgb(110, 160, 109);
}

/*
    ============
    Table Styles
    ============
*/
table {
    background: rgb(245, 240, 228);
    border: 2px solid rgb(32, 39, 11);    /* (!) Added border-styling via CSS to clearly define table bounds */
    margin: auto;                           /* (!) Table centered on page using margin: auto */
    text-align: center;                     /* (!) Text within cells centered using CSS */
}

table a {
    color: rgb(119, 147, 60);
}

table a:visited {
    color: rgb(87, 100, 21);
}

table a:hover {
    color: rgb(110, 152, 110);
}

table caption {
    margin: auto;
    font-weight: bold;
    font-size: 1.25rem;
}

td, th {
    padding: 0.25rem;
    border: 1px solid rgb(87, 100, 21);     /* (!) Added border-styling via CSS to clearly define table bounds */
}

th {
    background: rgb(202, 209, 162);         /* (!) Styled to clearly show table headers */
}

.tictactoe {
    width: 15rem;
    height: 15rem;
}

/* 
    ============
    Input Styles
    ============
*/

input:valid {
    background: rgba(255, 251, 234);
}

input:invalid {
    background: rgba(255, 126, 126, 0.525);
}

input:focus {
    outline: none;
    border: 2.5px solid rgba(137, 172, 85);
    box-shadow: 0px 0px 2px rgba(137, 172, 85, 0.25);
}

label {
    margin-bottom: 0.25rem;
    padding: 0.25rem;
    color: rgb(35, 11, 11);
    background: rgb(255, 250, 239);
    border: 1px solid rgba(137, 172, 85, 0.537);
}

fieldset {
    border: 1px solid rgb(87, 100, 21);
}

legend {
    font-weight: bold;
}

.block-label {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    justify-content: space-evenly;
}

.checkbox-menu:nth-child(2) {
    margin-bottom: 0.5rem;
}