/*  
    Dwight Daniels Jr, June 15, 2026, IST239-W01, Hands-on Project 05-05

    This stylesheet controls the layout and appearance
    of the Concentration game.

    Filename: styles.css
*/

/*----------------------------------------------------*/
/* Apply a natural box model to all page elements     */
/*----------------------------------------------------*/
* {
   -moz-box-sizing: border-box;
   -webkit-box-sizing: border-box;
   box-sizing: border-box;
}

/*----------------------------------------------------*/
/* Reset default browser formatting                   */
/*----------------------------------------------------*/
html, body, div, span, applet, object, iframe,
h1, h2, h3, h4, h5, h6, p, blockquote, pre,
a, abbr, acronym, address, big, cite, code,
del, dfn, em, img, ins, kbd, q, s, samp,
small, strike, strong, sub, sup, tt, var,
b, u, i, center,
dl, dt, dd, ol, ul, li,
fieldset, form, label, legend,
table, caption, tbody, tfoot, thead, tr, th, td,
article, aside, canvas, details, embed,
figure, figcaption, footer, header, hgroup,
menu, nav, output, ruby, section, summary,
time, mark, audio, video {
   margin: 0;
   padding: 0;
   border: 0;
   font-size: 100%;
   font: inherit;
   vertical-align: baseline;
}

/*----------------------------------------------------*/
/* Display HTML5 semantic elements correctly          */
/*----------------------------------------------------*/
article, aside, details, figcaption, figure,
footer, header, hgroup, menu, nav, section {
   display: block;
}

/*----------------------------------------------------*/
/* Page body formatting                               */
/*----------------------------------------------------*/
body {
   line-height: 1;
   width: 960px;
   background: white;
   margin: 0 auto;
   font-family: Verdana, Geneva, sans-serif;
}

/* Remove default list bullets */
ol,
ul {
   list-style: none;
}

/*----------------------------------------------------*/
/* Page header                                        */
/*----------------------------------------------------*/
header {
   background: #5472B2;
   width: 100%;
   color: #FFFFFF;
   font-size: 48px;
   text-align: center;
   line-height: 1.5em;
}

/*====================================================*/
/*              Project-Specific Styles               */
/*====================================================*/

/* Main content area containing the instructions and game board */
section {
   width: 960px;
   background: #FFDB70;
   padding-bottom: 20px;
   height: 560px;
}

/* Left panel containing the game instructions */
div#instruction {
   float: left;
   width: 350px;
   margin-right: 50px;
   padding-left: 30px;
}

/* Heading for the instructions panel */
div#instruction h2 {
   text-align: center;
   font-size: 1.3em;
   font-weight: bold;
   margin-bottom: 10px;
   padding-top: 10px;
}

/* Paragraph text within the instructions panel */
div#instruction p {
   font-size: 1.2em;
   line-height: 1.4;
   margin-bottom: 20px;
}

/* Right panel containing the game board */
div#board {
   width: 520px;
   height: 520px;
   float: left;
   margin-top: 20px;
   display: flex;
   flex-flow: row wrap;
   justify-content: space-around;
}

/* Individual game tile */
div.tile {
   position: relative;
   width: 120px;
   height: 120px;
   user-select: none;
   cursor: pointer;
}

/* Position both images directly on top of each other */
div.tile img {
   position: absolute;
   top: 0;
   left: 0;
}