/*------------------------------------------------------------------------------
-- // RESETS
------------------------------------------------------------------------------*/

html { box-sizing: border-box; }

*,
*:before,
*:after {
  box-sizing: border-box;
}

html, body, div, span,
header, nav, main, article, section, aside, footer,
h1, h2, h3, h4, h5, h6,
p, strong, em, b, i, u, a, ul, ol, li,
blockquote, pre, code, img, audio, video,
table, caption, thead, tbody, tfoot, tr, th, td,
form, input {
  margin: 0;
  padding: 0;
  background: transparent;
  font-size: 100%;
  font-weight: normal;
  vertical-align: baseline;
}

header, nav, main, article, section, aside, footer,
blockquote, pre, img, audio, video,
form {
  display: block;
}

/* -----------------------------------------------------------------------------
-- // BASE
----------------------------------------------------------------------------- */

:root {
  --width: 900px;
  --font-family: Verdana, Arial, sans-serif;
  --font-scale: 1em;
}

:root.light {
  --bg-100:rgb(255, 252, 240); 
  --bg-200: rgb(242, 240, 229); 
  --text-100: rgb(16, 15, 15);
  --text-200: rgb(111, 110, 105);
  --ui-100: rgb(183, 181, 172); 
  --ui-200: rgb(111, 110, 105); 
  --highlight-accent: rgb(32, 94, 170);
  --highlight-earned: rgb(41, 119, 11);
  --highlight-unearned: rgb(200, 52, 41);
}

:root.dark {
  --bg-100:rgb(16, 15, 15);
  --bg-200: rgb(28, 27, 26);
  --text-100: rgb(206, 205, 195);
  --text-200: rgb(135, 133, 128);
  --ui-100: rgb(40, 39, 38);
  --ui-200: rgb(52, 51, 49);
  --highlight-accent: rgb(63, 150, 231);
  --highlight-earned: rgb(75, 182, 65);
  --highlight-unearned: rgb(221, 82, 70);
}

:root.slate {
  --bg-100:rgb(20, 26, 38); 
  --bg-200: rgb(25, 31, 44); 
  --text-100: rgb(242, 242, 242);
  --text-200: rgb(138, 138, 138);
  --ui-100: rgb(35, 48, 75); 
  --ui-200: rgb(26, 36, 58); 
  --highlight-accent: rgb(27, 183, 255);
  --highlight-earned: rgb(0, 255, 170);
  --highlight-unearned: rgb(243, 76, 64);
}

:root.forest {
  --bg-100:rgb(20, 26, 38); 
  --bg-200: rgb(25, 31, 44); 
  --text-100: rgb(242, 242, 242);
  --text-200: rgb(138, 138, 138);
  --ui-100: rgb(35, 48, 75); 
  --ui-200: rgb(26, 36, 58); 
  --highlight-accent: rgb(27, 183, 255);
  --highlight-earned: rgb(54, 211, 35);
  --highlight-unearned: rgb(217, 96, 26);
}

:root.summer {
  --bg-100:rgb(255, 245, 228); 
  --bg-200: rgb(252, 235, 205);
  --text-100: rgb(197, 111, 72);
  --text-200: rgb(151, 114, 87);
  --ui-100: rgb(255, 227, 225); 
  --ui-200: rgb(255, 209, 209); 
  --highlight-accent: rgb(27, 183, 255);
  --highlight-earned: rgb(149, 225, 211);
  --highlight-unearned: rgb(243, 129, 129);
}

body {
  margin: 0 auto;
  padding: 0 16px;
  max-width: var(--width);
  background-color: var(--bg-100);
  font-family: var(--font-family);
  font-size: var(--font-scale);
  font-weight: normal;
  line-height: 1.5;
  color: var(--text-100);
}

/* -----------------------------------------------------------------------------
-- // BASIC ELEMENTS
----------------------------------------------------------------------------- */

.normal { color: var(--text-100); }
.blue { color: var(--highlight-accent); }
.green { color: var(--highlight-earned); }
.red { color: var(--highlight-unearned); }

h1 {
  font-size: 2em;
  font-weight: bold;
  line-height: 1;
}
h2 {
  margin-bottom: 1em;
  font-size: 1.5em;
  font-weight: bold;
  line-height: 1;
}

p {
  margin-bottom: 1em;
  text-align: left;
}
p:last-child { margin-bottom: 0; }

a,
a:visited {
  color: var(--text-100);
  text-decoration: underline; 
  text-underline-offset: 2px;
  text-decoration-thickness: 1px;
  text-decoration-style: solid;
  text-decoration-color: var(--highlight-accent);
}
a:hover {
  color: var(--highlight-accent);
  text-decoration: underline; 
  text-decoration-style: solid;
  text-decoration-color: var(--highlight-accent);
}

ul {
  margin-left: 1em;
  padding-left: 1em;
}
li {
  list-style-type: square;
}

blockquote {
  margin: 1em 0;
  padding: 12px 16px;
  border: 1px solid var(--ui-100);
  background-color: var(--bg-200);
  font-size: .875em;
}

/* -----------------------------------------------------------------------------
-- // FORM
----------------------------------------------------------------------------- */

input,
label {
  cursor: pointer;
}

input {
  padding-left: 4px;
  border: 1px solid var(--ui-100);
  background-color: var(--bg-200);
  color: var(--highlight-accent);
}
input:focus {
  outline: none;
  border-color: var(--ui-200);
}

/* Remove up and down arrows */
input::-webkit-outer-spin-button,
input::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}
input[type="number"] {
    -moz-appearance: textfield;
}

.calcMethod {
  margin: 1em 0;
}
.calcMethod span {
  margin-right: 1em;
}
input[type="radio"] {
  height: 1em;
  width: 1em;
  margin: 0 4px 0 8px;
}

button {
  margin-top: 4rem;
  padding: .75em 4em;
  border: 1px solid var(--ui-100);
  background-color: var(--bg-200);
  color: var(--text-100); 
}
button:hover{
  border: 1px solid var(--ui-200);
  cursor: pointer;
}

/* -----------------------------------------------------------------------------
-- // TABLE
----------------------------------------------------------------------------- */

table {
  margin: 1em 0;
  width: 100%; 
  border-collapse: collapse;
  border: 0;
}
th {
  padding: 2px 0 2px 8px;
  font-weight: bold;
  text-align: left;
  vertical-align: middle;
}
td {
  padding: 2px 0 2px 8px;
  vertical-align: middle;
}

.with-border {
  padding: 2px 4px;
  border: 1px solid var(--ui-100);
}

/* -----------------------------------------------------------------------------
-- // LAYOUT
----------------------------------------------------------------------------- */

header {
  margin-top: 4rem;
}

main {
  margin: 4rem 0;
}

.flex-container {
  display: flex;
  margin: 0;
  padding: 0;
  flex-direction: row;
  gap: 4rem 2rem;
  flex-wrap: wrap;
  align-items: flex-start;
  justify-content: center;
}
.flex-1 {
  order: 1;
  flex-grow: 1;
}
.flex-2{
  order: 2;
  flex-grow: 1
}
.flex-3 {
  order: 3;
  flex-grow: 2;
}
.flex-4 {
  order: 4;
  flex-grow: 2;
  text-align: center;
}

footer {
  margin-bottom: 4rem;
  padding-top: 12px;
  border-top: 1px solid var(--ui-100);
  font-size: .875em;
  color: var(--text-200);
}

select {
  padding: 0 1em 0 0;
  margin: 0;
  border: none;
  background-color: transparent;
  font-family: inherit;
  font-size: inherit;
  line-height: inherit;
  cursor: inherit;
}

#theme-select {
  float: right;
  margin-right: 1em;
  padding: 4px 8px;
  border: 1px solid var(--ui-100);
  border-radius: .25em;
  background-color: var(--bg-200);
  color: var(--text-200);
  cursor: pointer;
}