:root {
  color-scheme: light dark;
  --primary-fg-color: light-dark(black,white);
  --primary-bg-color: light-dark(#f2efe6,#1f1c18);
  --accent-fg-color: light-dark(#e6a800,#ffbb00);
  --accent-focus-color: light-dark(#bf8c00,#d99f00);
  --muted-fg-color:   light-dark(#999183,#80796d);
  --message-fg-color: light-dark(#0078a8,#009bd9);
  --message-bg-color: light-dark(#0092cc0f,#0092cc30);
  --success-fg-color: light-dark(#289500,#38b800);
  --success-bg-color: light-dark(#daffcc,#0f3300);
  --alert-fg-color:   light-dark(#b36800,#dc8300);
  --alert-bg-color:   light-dark(#fffce6,#332200);
  --warning-fg-color: light-dark(#a50000,#ff2a00);
  --warning-bg-color: light-dark(#ffd9d9,#330900);
}

@media (prefers-color-scheme: dark) {
  body img {
    filter: invert(100%);
  }
}

@keyframes pulse {
  0%   { transform: scale(1.0); }
  50%  { transform: scale(1.1); }
  100% { transform: scale(1.0); }
}

.pulse > * {
  animation: pulse 1s infinite;
}

body {
  color: var(--primary-fg-color);
  background-color: var(--primary-bg-color);
  background-image: url("./stripes.png");
  background-repeat: repeat;
  font-family: sans-serif;
  font-size: 1em;
}

body, p, h1, h2, h3, h4, h5, h6 {
  margin: 0;
  padding: 0;
}

h1, h2 {
  text-align: center;
}

h3 {
  font-size: 1em;
  font-weight: 600;
}

p {
  margin-bottom: 0.5em;
  text-align: left;
}

p.message {
  font-weight: bold;
  padding: 20px;
  color: var(--message-fg-color);
  fill: var(--message-fg-color);
  background-color: var(--message-bg-color);
  border: 2px solid var(--message-fg-color);;
  border-radius: 8px;
}

p.success {
  font-weight: bold;
  padding: 20px;
  color: var(--success-fg-color);
  fill:  var(--success-fg-color);
  background-color: var(--sucess-bg-color);
  border: 2px solid var(--success-fg-color);
  border-radius: 8px;
}

p.alert {
  font-weight: bold;
  padding: 20px;
  color: var(--alert-fg-color);
  fill: var(--alert-fg-color);
  background-color: var(--alert-bg-color);
  border: 2px solid var(--alert-fg-color);
  border-radius: 8px;
}

p.warning {
  font-weight: bold;
  padding: 20px;
  color: var(--alert-fg-color);
  fill:  var(--alert-fg-color);
  background-color: var(--warning-bg-color);
  border: 2px solid var(--alert-fg-color);
  border-radius: 8px;
}

p.explanation {
  color: var(--muted-fg-color);
  font-size: 0.9em;
  margin-bottom: 1em;
}

div.footerbox {
    width: 90vw;
    margin: 0px auto;
    margin-top: 10px;
}

div.footerbox p {
  text-align: center;
}

div.form-submit > button {
  background-color: var(--accent-fg-color);
  transition: background-color 0.1s;
  border: 1px solid var(--accent-focus-color);
  border-radius: 4px;
}

div.form-submit > button:hover {
  background-color: var(--accent-focus-color);
  cursor: pointer;
}

div.form-submit > button p {
  margin: 4px 2px;
  font-size: 1em;
  font-weight: bold;
  text-decoration: none;
  color: var(--primary-bg-color);
  fill:  var(--primary-bg-color);
}

a, a:active {
  color: var(--accent-fg-color);
}
a:hover {
  color: var(--accent-focus-color);
}

hr {
 border: 1px solid var(--accent-fg-color);
 padding: 0;
 margin: 0.5em auto;
}

p .icon > svg{
  height: 1em;
  width:  1em;
  vertical-align: -0.125em;
}


/* Flexbox layout */
header {
  display: flex;
  flex-flow: row wrap;
  justify-content: space-between;
  align-items: center;
  gap: 20px 40px;
  margin: 0px auto;
  margin-top: 20px;
  max-width: 760px;
}

header > img {
  height: 200px;
}

header > * {
  margin: 0px auto;
}

div.box {
  background-color: light-dark(white,#0d0c0a);
  border-radius: 15px;
  box-shadow: 5px 5px 15px light-dark(#00000020,#000000);
  text-align: justify;
}

div.flex-container {
    display: flex;
    flex-flow: column wrap;
    justify-content: center;
    align-items: center;
    padding: 0px 20px;
    margin: 0px auto;
    list-style: none;
}

div.flex-item {
    padding: min(5vw,40px);
    margin: min(20px,10vh) auto;
    min-width: 200px;
    max-width: 680px;
}


/* Form Elements */
div.form-flexcontainer {
  display: flex;
  flex-flow: row wrap;
  justify-content: flex-start;
  align-content: stretch;
  align-items: flex-start;
  gap: 0px 10px;
  margin: 10px 0;
  padding: 0;
}

div.form-flexcontainer > label:has(+div.form-input) {
  flex-basis: 15ch;
  font-weight: 600;
  font-size: 1em;
}

div.form-flexcontainer > h3 {
  flex-basis: 100%;
  margin-bottom: -0.5em
}

div.form-input {
  flex-grow: 1;
}

div.form-input > input {
  font-size: 1em;
  font-family: sans-serif;
  width: calc(100% - 25px);
  margin: 0;
  padding: 2px 2px
}

div.form-input > input[type="date"]:invalid,
div.form-input > input:placeholder-shown,
div.form-input > textarea:placeholder-shown {
  color: var(--muted-fg-color);
}

div.form-input > textarea {
  font-size: 1em;
  font-family: sans-serif;
  width: calc(100% - 25px);
  margin: 0;
  padding: 0 2px;
}

div.form-input > textarea[name="address"] {
  resize: none;
}

div.form-input > textarea[name="comment"] {
  width: calc(100% - 8px);
  resize: vertical;
}

div.form-input > span.validity {
  vertical-align: baseline;
}

div.form-input > *:valid + span.validity::after {
  content: "✓";
  font-weight: bold;
  text-align: right;
  color: var(--success-fg-color);
  display: inline-block;
  width: 10px;
  height: 1em;
  margin: 0px;
  padding: 0px;
}

div.form-input > *:invalid + span.validity::after {
  content: "x";
  font-weight: bold;
  text-align: right;
  color: var(--warning-fg-color);
  display: inline-block;
  width: 10px;
  height: 1em;
  margin: 0px;
  padding: 0px;
}

div.form-flexcontainer:has(div.form-checkbox) {
  gap: 10px 20px; 
}

div.form-flexcontainer > div.form-checkbox {
  display: flex;
  flex-flow: row nowrap;
  justify-content: flex-start;
  align-items: flex-start;
  align-content: flex-start;
  gap: 0 4px;
}

div.form-flexcontainer > div.form-checkbox:last-of-type {
  margin-bottom: 0.5em;
}

div.form-flexcontainer > div.form-checkbox > label {
  flex-grow: 1;
  text-align: left;
  line-height: 1.1em;
  min-width: 25ch;
}

div.form-flexcontainer > div.form-checkbox > label i {
  color: var(--accent-fg-color);
}

div.form-checkbox > input[type="checkbox"] {
  appearance: none;
  -webkit-appearance: none;
  -moz-appearance: none;
  cursor: pointer;
  margin: 0;
  margin-right: 4px;
  padding: 0;
  position: relative;
  top: 1px;
  color: var(--primary-bg-color);
  border: 1px solid var(--accent-focus-color);
  border-radius: 2px;
}

div.form-checkbox > input[type="checkbox"]:checked {
  background-color: var(--accent-fg-color);
  transition: background-color 0.1s;
}

div.form-checkbox > input[type="checkbox"]:checked:hover {
  background-color: var(--accent-focus-color);
}

div.form-checkbox > input[type="checkbox"]::after {
  content: " ";
  display: block;
  font-size: 1.2em;
  font-weight: bold;
  color: var(--primary-bg-color);
  width: 0.9em;
  height: 0.9em;
  margin: 0;
  padding: 0;
  position: relative;
  left: 0;
  bottom: 0.2em;
}

div.form-checkbox > input[type="checkbox"]:checked::after {
  content: "✓";
}

div.form-checkbox > input[type="checkbox"] + label:hover {
  cursor: pointer;
}

legend {
  font-size: 1em;
  font-weight: bold;
  text-align: left;
  color: var(--accent-focus-color);
}

fieldset {
    margin: 10px 0px;
    border: 1px solid var(--accent-focus-color);
    border-radius: 2px;
}