/* BROWSER STYLES RESET */

@charset "UTF-8";

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;
}
/* HTML5 display-role reset for older browsers */
article, aside, details, figcaption, figure, 
footer, header, hgroup, menu, nav, section {
	display: block;
}

/*developer style.css */
*, *:before, *:after {box-sizing: inherit;}  


/* General */

html {
    font-size: 1rem;
    height: 100%;
    box-sizing: border-box; 
    font-family: 'Calibri', sans-serif; 
    scroll-behavior: smooth;
}
body {
    display: flex; 
    flex-flow: column nowrap;
    justify-content: space-around;
    gap: 1rem;  
    min-height: 100vh;;
    width: 100%;
    padding: 1rem;
    margin: 0;
    line-height: 1.5rem;
    color: #013;
    background-color: #fff;
    border: solid thick;
    overflow: auto;  
}
header {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 1.5rem;
    border-radius: 0.5rem;
    background-color: #f5f5f5;
    box-shadow: 4px 4px 4px rgba(0, 0, 0, 0.1);
}
main {
    display: flex; 
    flex-flow: column nowrap;
    justify-content: space-around; 
    gap: 1rem; 
    width: 100%; 
    min-height: 0;
}
footer {
    display: flex;
    align-items: center;
    padding: 1rem;
    border-radius: 0.5rem;
    background-color: #f5f5f5;
    justify-content: space-around;
    box-shadow: 4px 4px 4px rgba(0, 0, 0, 0.1);
} 
main, header, footer {
    flex: 1 1 auto;
    min-height: 0;
    margin: 0;
}
h1 {font-size: 2.5rem;
    color: darkred;
    font-weight: bold;
}

/* Details */

details {
    flex: 1 1 auto;
    box-shadow: 4px 4px 4px rgba(0, 0, 0, 0.1);
    border-radius: 0.5rem;
    padding: 1.5rem;
    background-color: #f5f5f5;
    transition: transform 0.3s ease-in-out; 
}
details:hover {transform: scale(1.04);}

summary {
    font-size: 2rem;
    font-weight: bold;
    list-style: none;
}
summary::before {
    content: '▶'; 
    font-size: 1.2rem;
    display: inline-block;
    margin-right: 1.8rem;
    transition: transform 0.3s ease-out;
    }  
 details[open] summary::before {
    transform: rotate(90deg);
    }

/* List */

ul {
    list-style-position: outside;
    list-style-type: square;
}
li {
    margin: 1.7rem;
    padding-left: 0.7rem;
    margin-right: 0;
    text-align: left;
}
li::marker {
    font-weight: bold;
    font-size: 1.5rem;
}


/* Anchors */

a { font-size: 1.4rem;
    font-weight: bold;
    color: #013;
    text-decoration: none;
    -webkit-tap-highlight-color: transparent; 
    outline: none;
}
a:hover {color: darkred;}
a:active {text-decoration: underline;
        text-decoration-style: dotted;
}

footer a {
    font-size: 1.5rem;
    text-decoration: none;
    font-weight: bold;
}
footer a:hover {
    color: darkred;
}
footer a:active {
    text-decoration: underline;
    text-decoration-style: dotted;
}

@media only screen and (min-width: 481px) and (max-width: 768px){
    html {font-size: 1.25rem; }
     a { font-size: 1.6rem;}
    summary {text-align: center;}
    ul {list-style-type: none;}
    li {text-align: center;}
}

@media only screen and (min-width: 768px) {
    html {font-size: 1.5rem; }
     a { font-size: 1.6rem;}
    summary {text-align: center;}
    ul {list-style-type: none;}
    li {text-align: center;}
}