@import url('https://fonts.googleapis.com/css2?family=Griffy&family=Mystery+Quest&display=swap');

body {
    margin: 0; padding: 0;
    background-color: #2b307b;
    color: #eaeaf2;

    font-family: "Mystery Quest", system-ui;
    font-weight: 400;
    font-style: normal;
    
    font-size: 22px;
    line-height: 160%;
}

a:link, a:visited {
    color: white;
    text-decoration: none;
    transition: color 400ms ease-in-out;
}

header a:hover,
header a:focus,
section.story a:hover,
section.story a:focus {
    color: color-mix(in srgb, rgb(43, 48, 123) 100%, white 80%);
}

#wave {
    position: fixed;
    bottom: -10px;
    left: -2px;
    width: 110%;
    height: auto;
    z-index: 2;
    pointer-events: none; /* click-throught */
}

#wave img {
    width: 100%;
}

#snow {
    position: fixed;
    top: 0; left: 0; bottom: 0; right: 0;
    z-index: 0;
}


h1, h2, h3 {
    margin: 0; padding: 0;
    text-align: center;
}

body > header, body > section, body > footer {
    padding: 6vh 3vw;
    position: relative;
    z-index: 1;
}


footer {
    text-align: center;
    margin-top: 5em;
    margin-bottom: 20vh;
    font-size: 80%;
}

body > section {
    padding-top: 0;
}

header h1, header a {
    font-size: 140%;
    line-height: 140%;
}

header nav {
    float: right;
}

header nav a:link, header nav a:visited {
    opacity: .5;
    transition: opacity 400ms ease-in-out;
}

header nav a:hover, header nav a:focus {
    opacity: 1;
}

header nav a img {
    height: 1.4em;
    width: 1.4em;
}

section.days ul {
    list-style: none;
    margin: 0; padding: 0;
    
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-content: stretch;
}

section.days li {
    width: 14vh;
    height: 14vh;
    
    margin-right: 3vh;
    margin-bottom: 3vh;
}

section.days a {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    
    background-color: color-mix(in srgb, rgb(43, 48, 123) 100%, white 5%);
    transition: background-color 400ms ease-in-out;
    height: 100%;
    text-align: center;
    vertical-align: center;
    
    text-decoration: none;
    
    font-size: 130%;
}

section.days a.open {
    background-color: color-mix(in srgb, rgb(43, 48, 123) 100%, white 23%);
}

section.days a.open:hover, section.days a.open:focus {
    background-color: color-mix(in srgb, rgb(43, 48, 123) 100%, white 60%);
}

section.days a.not-open {
    opacity: .7;
}

section.day {
    background-color: rgba(0,0,0, .5);
    border-radius: 9vw;
   
    padding: 9vw 9vw 0 9vw;
    margin: 0 6vw;
    margin-bottom: 10vw;
}

section.challenge {
    margin: 0 -9vw;
    padding: 3vh 9vw 5vh;
    background-color: rgba(255,255,255,.2);
    
    border-bottom-left-radius: 9vw;
    border-bottom-right-radius: 9vw;
}

section.day h1 {
    display: none; /* the naming title */
}

section.day h2 {
    /* the auto title "Dec 1" */
    margin: -5vh 0 5vh;
}

section.day a {
    font-weight: bold;
}

section.day p {
    margin-top: 0;
}

.story img.main {
    width: 100%; padding: 2em 0;
}

@media (min-width: 768px) {
 .story img.main {  float:right; width: 30vw; max-width: 500px; padding: 0; }
}

/* Forms */

input[type="text"], button, textarea {
    font-family: inherit;
    line-height: inherit;
    padding: .1em 1em;
}

textarea.block {
    width: 100%;
}

.info, span.correct, span.wrong {
  display: inline-block;
  padding: .2em 1em;
  margin-right: .5em;
  border-radius: .8em;
  background-color: rgba(0,0,0, .7);
}

span.wrong {
    background-color: rgba(145, 13, 13, 0.7);
}

span.correct {
    background-color: rgba(30, 145, 13, 0.7);
}


dl dt {
   font-weight: bold;
}

dl dd {
   margin-bottom: 1.5em;
}

table td {
    border: 1px solid white;
    padding: .3em;
}

table {
    margin: 1em 0;
}