html {
  scroll-behavior: smooth;
}

body {
  font: 16px/1.5 'Segoe UI', Helvetica, Arial, sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji';
  margin: 0;
}

a {
  background-color: transparent;
  color: #000;
}
a:hover {
  font-weight: 700
}

abbr[title] {
  border-bottom: none;
  text-decoration: none;
  cursor: help
}

sub, sup {
  font-size: 75%;
  line-height: 0;
  position: relative;
  vertical-align: baseline;
}

sub {
  bottom: -0.25em;
}

sup {
  top: -0.5em;
}

button, input {
  font-family: inherit;
  font-size: 100%;
  line-height: 1.15;
  margin: 0;
}

button, input {
  overflow: visible;
  width: inherit;
  box-sizing: border-box;
  text-align: center;
  border-color: transparent;
}

button, [type=submit] {
  -webkit-appearance: button;
}

[type=number] {
  -moz-appearance: textfield;
}

[type=number]::-webkit-inner-spin-button,
[type=number]::-webkit-outer-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

template, [hidden] {
  display: none;
}

input[readonly] {
  cursor: default
}

.var {
  font-style: italic
}

main {
  min-width: 35em;
  margin: 2em auto;
  padding: 0 2em;
  display: block
}

h1 {
  font-size: 2em;
  width: 40%;
  margin: 0.625em auto;
  padding: .25em;
}

h1, h1 + p {
  text-align: center
}

h1, input[readonly], #calc #log {
  background: #d4558c;
  color: #fefefe
}

h1, h2 {
  text-align: center;
  position: relative;
}

h1:after, h1:before,
h2:after, h2:before {
  content: '';
  width: 0;
  height: 0;
  position: absolute;
  top: 0;
}

h1:after {
  right: -1em;
  border-bottom: 2em solid transparent;
  border-left: 1em solid #d4558c
}

h1:before {
  left: -1em;
  border-top: 2em solid transparent;
  border-right: 1em solid #d4558c
}

section {
  position: relative
}

#calc:before, #faq:after {
  content: '';
  width: 6.25em;
  height: 6.25em;
  display: inline-block;
  position: absolute;
  background: url(bg.png) no-repeat
}

#calc:before {
  top: 1em;
  left: 1.5em
}

#faq:after {
  top: 0;
  right: 0;
  transform: scaleX(-1)
}

#calc {
  max-width: 50em;
  padding: 1.5em 2.5em 3em;
  margin: 0 auto;
  background: #dc6a9d;
  box-shadow: 0 0 .75em 0 rgba(0,0,0,0.25);
}

form {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  margin: 2em 0 0;
  line-height: 2;
}

input {
  background: #e579ad;
  border-radius: 1em;
}

.input {
  width: 18em;
  margin: 2em 2em 0 0;
}
.input dt, .input dd {
  margin: .5em 0
}

.input dt, .input dd,
.math dt, .math dd {
  float: left
}

.input dt {
  width: 8em
}

.input dd {
  width: 10em
}

.math dt, .math dd {
  width: 6em
}

.input dt, .math dt {
  clear: left;
}

.math dd {
  margin: 0 0 0 2em
}

.math dd:last-child {
  width: 12em;
  margin: 0 0 0 2em;
}

.input:after, .math:after {
  content: '';
  display: block;
  clear: left
}

table {
  border-collapse: collapse;
  border-spacing: 0;
  width: 30em;
  margin: 0 auto;
}

th {
  padding: 0;
  vertical-align: bottom
}

td {
  padding: 0.5em;
  width: 4em;
  vertical-align: middle;
}

tr th:nth-child(1),
tr td:nth-child(1),
tr th[rowspan] {
  width: 9em;
  padding: 0 .5em;
}

[type=submit] {
  height: 4em;
  background: #333;
  color: #fefefe;
  font-weight: 700;
  cursor: pointer;
  border-radius: 0;
  box-shadow: 0 0 .25em 0 rgba(0,0,0,0.25);
  margin: 0 auto 5.5em;
}

[type=submit]:hover,
[type=submit]:focus {
  background: #000
}

[type=submit]:disabled {
  opacity: 0.5;
  cursor: not-allowed
}

[type=submit]:hover:disabled {
  background: #333
}

#calc table td {
  vertical-align: bottom;
}

#calc table label {
  text-indent: 2.25em;
  display: inline-block;
  background: url(candy.png) no-repeat;
  height: 2em;
  overflow: hidden
}

#calc table label[for$=-s] {
  background-position: 0 -32px
}

#calc table label[for$=-m] {
  background-position: 0 -64px
}

#calc table label[for$=-l] {
  background-position: 0 -96px
}

#calc table label[for$=-xl] {
  background-position: 0 -128px
}

#calc #log {
  text-align: center;
  padding: 0.5em;
}

#calc #log a {
  color: #fefefe
}

#faq {
  max-width: 50em;
  margin: 2em auto
}

#faq h2 {
  background: #333;
  color: #fefefe;
  width: 8em;
  padding: .5em;
  margin: 0 auto .8333333em;
}

h2:after {
  left: 0;
  border-bottom: 2.5em solid transparent;
  border-left: 1em solid #2c2125
}

h2:before {
  right: 0;
  border-top: 2.5em solid transparent;
  border-right: 1em solid #2c2125
}

#faq table {
  width: 16em
}

#faq table th, #faq table td {
  padding: .5em;
}

#faq table th {
  border-bottom: 2px solid #ddd
}

#faq table td {
  border-bottom: 1px solid #ddd
}

#faq tbody tr:nth-of-type(2n+1) {
  background: #f9f9f9
}

#faq table tr *:nth-child(2) {
  text-align: center;
  width: 8em
}

#faq dl dt {
  font-weight: 700
}

#faq .math dt {
  font-weight: 400
}

footer {
  font-size: .75em;
  text-align: center
}

@media only screen and (max-width: 60em) {
  #calc, #faq {
    width: 30em;
  }

  #calc .input {
    margin: 0 1em 2em;
  }

  #calc table label {
    background: none;
    text-indent: 0
  }

  .math dd:last-child {
    margin-left: 8em
  }
}