@import url("https://fonts.googleapis.com/css?family=Source+Sans+Pro:300,300italic,600,600italic");

:root {
  --bg: #242943;
  --bg-alt: #2a2f4a;
  --fg: #ffffff;
  --fg-light: rgba(244, 244, 255, 0.5);
  --border: rgba(212, 212, 255, 0.1);
  --border-bg: rgba(212, 212, 255, 0.035);
  --highlight: #9bf1ff;
  --accent1: #6fc3df;
}

/* Header */
#header {
  display: flex;
  align-items: center;
  background-color: var(--bg-alt);
  box-shadow: 0 0 0.25em 0 rgba(0, 0, 0, 0.15);
  font-weight: 600;
  height: 3.25em;
  left: 0;
  letter-spacing: 0.25em;
  line-height: 3.25em;
  position: fixed;
  text-transform: uppercase;
  top: 0;
  width: 100%;
  z-index: 10000;
}

#header .logo {
  border: 0;
  display: inline-block;
  font-size: 0.8em;
  height: inherit;
  line-height: inherit;
  padding: 0 1.5em;
}

#header .logo strong {
  background-color: var(--fg);
  color: var(--bg);
  display: inline-block;
  line-height: 1.65em;
  padding: 0 0.35em 0 calc(0.25em + 0.35em);
  transition: background-color 0.2s ease-in-out;
  padding: 0 0.125em 0 0.375em;
}

#header .logo:hover strong {
  background-color: var(--highlight);
}

#header nav {
  display: flex;
  justify-content: flex-end;
  flex-grow: 1;
  height: inherit;
  line-height: inherit;
}

#header nav a {
  border: 0;
  display: block;
  font-size: 0.8em;
  height: inherit;
  line-height: inherit;
  padding: 0 0.75em;
  position: relative;
}

#header nav a[href="#menu"] {
  padding-right: 3.25em;
}

#header nav a[href="#menu"]::before,
#header nav a[href="#menu"]::after {
  background-position: center;
  background-repeat: no-repeat;
  background-size: 24px 32px;
  content: "";
  display: block;
  height: 100%;
  position: absolute;
  right: 1.5em;
  top: 0;
  width: 24px;
}

#header nav a[href="#menu"]::before {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='32' viewBox='0 0 24 32'%3E%3Cstyle%3Eline %7B stroke-width: 2px; stroke: %23ffffff; %7D%3C/style%3E%3Cline x1='0' y1='11' x2='24' y2='11' /%3E%3Cline x1='0' y1='16' x2='24' y2='16' /%3E%3Cline x1='0' y1='21' x2='24' y2='21' /%3E%3C/svg%3E");
}

#header nav a[href="#menu"]::after {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='32' viewBox='0 0 24 32'%3E%3Cstyle%3Eline %7B stroke-width: 2px; stroke: %239bf1ff; %7D%3C/style%3E%3Cline x1='0' y1='11' x2='24' y2='11' /%3E%3Cline x1='0' y1='16' x2='24' y2='16' /%3E%3Cline x1='0' y1='21' x2='24' y2='21' /%3E%3C/svg%3E");
  opacity: 0;
  transition: opacity 0.2s ease-in-out;
}

#header nav a[href="#menu"]:hover::after {
  opacity: 1;
}

/* Menu */
#menu {
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(36, 41, 67, 0.9);
  height: 100%;
  left: 0;
  opacity: 0;
  overflow: hidden;
  padding: 3em 2em;
  pointer-events: none;
  position: fixed;
  top: 0;
  visibility: hidden;
  width: 100%;
  z-index: 10002;
  transition:
    transform 0.35s ease,
    opacity 0.35s ease,
    visibility 0.35s;
}

#menu .inner {
  max-width: 100%;
  max-height: 100vh;
  opacity: 0;
  overflow: auto;
  text-align: center;
  visibility: hidden;
  width: 18em;
  transform: rotateX(20deg);
  transition:
    transform 0.35s ease-out,
    opacity 0.35s ease,
    visibility 0.35s;
}

#menu ul.links {
  list-style: none;
  padding: 0;
  margin: 0;
}

#menu ul.links li a {
  border: 0;
  border-top: solid 1px var(--border);
  display: block;
  font-size: 0.8em;
  font-weight: 600;
  letter-spacing: 0.25em;
  line-height: 4em;
  text-transform: uppercase;
}

#menu ul.links li:first-child a {
  border-top: 0;
}

#menu .close {
  border: 0;
  cursor: pointer;
  display: block;
  height: 4em;
  line-height: 4em;
  overflow: hidden;
  padding-right: 1.25em;
  position: absolute;
  right: 0;
  text-align: right;
  text-indent: 8em;
  top: 0;
  white-space: nowrap;
  width: 8em;
}

#menu .close::before,
#menu .close::after {
  background-position: center;
  background-repeat: no-repeat;
  content: "";
  display: block;
  height: 4em;
  position: absolute;
  right: 0;
  top: 0;
  width: 4em;
}

#menu .close::before {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='20' height='20' viewBox='0 0 20 20'%3E%3Cstyle%3Eline %7B stroke: %23ffffff; stroke-width: 2; %7D%3C/style%3E%3Cline x1='0' y1='0' x2='20' y2='20' /%3E%3Cline x1='20' y1='0' x2='0' y2='20' /%3E%3C/svg%3E");
}

#menu .close::after {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='20' height='20' viewBox='0 0 20 20'%3E%3Cstyle%3Eline %7B stroke: %239bf1ff; stroke-width: 2; %7D%3C/style%3E%3Cline x1='0' y1='0' x2='20' y2='20' /%3E%3Cline x1='20' y1='0' x2='0' y2='20' /%3E%3C/svg%3E");
  opacity: 0;
  transition: opacity 0.2s ease-in-out;
}

#menu .close:hover::after {
  opacity: 1;
}

body.is-menu-visible #menu {
  pointer-events: auto;
  opacity: 1;
  visibility: visible;
}

body.is-menu-visible #menu .inner {
  transform: none;
  opacity: 1;
  visibility: visible;
}

/* Main content */
#main {
  padding-top: 3.25em;
}

body {
  font-family: "Source Sans Pro", Helvetica, sans-serif;
  font-weight: 300;
  font-size: 17pt;
  letter-spacing: 0.025em;
  line-height: 1.65;
  color: var(--fg);
  background-color: var(--bg);
  margin: 0;
  padding: 2em;
  min-height: 90vh;
}

h1 {
  font-size: 1.75em;
  font-weight: 600;
  margin: 0 0 0.5em;
  padding: 0;
}

p {
  max-width: 65em;
  margin: 0 0 2em;
}

a {
  color: inherit;
  text-decoration: none;
  border-bottom: dotted 1px;
  transition:
    color 0.2s ease-in-out,
    border-bottom-color 0.2s ease-in-out;
}

a:hover {
  color: var(--highlight);
  border-bottom-color: transparent;
}

.generator {
  display: flex;
  align-items: center;
  gap: 0.6em;
  margin: 1em 0;
}

input[type="submit"] {
  appearance: none;
  background-color: transparent;
  border: solid 2px var(--fg);
  border-radius: 0;
  color: var(--fg);
  cursor: pointer;
  font-family: inherit;
  font-size: 0.8em;
  font-weight: 600;
  letter-spacing: 0.25em;
  padding: 0 1.75em;
  height: 2.75em;
  line-height: 2.7em;
  text-transform: uppercase;
  text-align: center;
  transition:
    background-color 0.2s ease-in-out,
    box-shadow 0.2s ease-in-out,
    color 0.2s ease-in-out;
}

input[type="submit"]:hover {
  box-shadow: inset 0 0 0 2px var(--highlight);
  border-color: var(--highlight);
  color: var(--highlight);
}

input[type="submit"]:active {
  background-color: rgba(155, 241, 255, 0.15);
}

#heraldry {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-top: 1em;
  gap: 0.75em;
}

#heraldry svg {
  width: min(80vw, 65vh);
  height: auto;
  filter: drop-shadow(4px 6px 14px rgba(0, 0, 0, 0.6));
}

.shield-caption {
  text-align: center;
  font-size: 0.9em;
  color: var(--fg-light);
  margin: 0;
  letter-spacing: 0.02em;
}

.rules {
  display: flex;
  gap: 1.2em;
  margin: 0.25em 0 0.5em;
  font-size: 0.9em;
  color: var(--fg-light);
}

.rules label {
  display: flex;
  align-items: center;
  gap: 0.35em;
  cursor: pointer;
}

input[type="checkbox"] {
  appearance: none;
  width: 1.65em;
  height: 1.65em;
  background: var(--border-bg);
  border: none;
  cursor: pointer;
  position: relative;
}

input[type="checkbox"]:checked::before {
  content: "✓";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: var(--bg);
  font-size: 1em;
  font-weight: 600;
}

input[type="checkbox"]:checked {
  background: var(--fg);
}

input[type="checkbox"]:focus {
  box-shadow: 0 0 0 2px var(--highlight);
  outline: none;
}

details {
  margin: 0.5em 0 1em;
}

details summary {
  cursor: pointer;
  font-size: 0.8em;
  font-weight: 600;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--fg);
  user-select: none;
  width: fit-content;
  border-bottom: dotted 1px var(--fg);
  transition:
    color 0.2s ease-in-out,
    border-bottom-color 0.2s ease-in-out;
}

details summary:hover {
  color: var(--highlight);
  border-bottom-color: transparent;
}

details[open] summary {
  margin-bottom: 0.5em;
}

.controls {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6em 1.2em;
  margin: 0.5em 0 1em;
}

.ctrl-label {
  display: flex;
  flex-direction: column;
  font-size: 0.8em;
  font-weight: 600;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--fg);
  gap: 0.5em;
}

.ctrl-label select {
  appearance: none;
  font-family: inherit;
  font-size: 1em;
  font-weight: 300;
  letter-spacing: 0.025em;
  text-transform: none;
  padding: 0 1em;
  height: 2.75em;
  border: none;
  border-radius: 0;
  background: var(--border-bg);
  color: var(--fg);
  max-width: 16em;
  cursor: pointer;
  outline: none;
}

.ctrl-label select:focus {
  box-shadow: 0 0 0 2px var(--highlight);
}

#charge-colours {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6em 1.2em;
  width: 100%;
}

.ctrl-row {
  display: flex;
  align-items: center;
  gap: 0.3em;
}

.ctrl-swatch {
  display: inline-block;
  width: 12px;
  height: 12px;
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 2px;
  flex-shrink: 0;
}

.swatch {
  display: inline-block;
  width: 11px;
  height: 11px;
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 2px;
  margin-right: 3px;
  vertical-align: middle;
}

.attribution {
  margin-top: 2em;
  border-top: 1px solid var(--border);
  padding-top: 0.5em;
}

.attribution ul {
  margin: 0.5em 0;
  padding-left: 1.5em;
  font-size: 0.85em;
  color: var(--fg-light);
  line-height: 1.8;
}

.attribution li {
  margin-bottom: 0.4em;
}

@media (max-width: 1280px) {
  body {
    font-size: 14pt;
  }
}

@media (max-width: 736px) {
  body {
    font-size: 12pt;
    padding: 1.5em;
  }

  #header {
    height: 2.75em;
    line-height: 2.75em;
  }

  #header .logo {
    padding: 0 1em;
  }

  #header nav a {
    padding: 0 0.5em;
  }

  #header nav a[href="#menu"] {
    padding-right: 3.25em;
  }

  #header nav a[href="#menu"]::before,
  #header nav a[href="#menu"]::after {
    right: 0.75em;
  }

  #main {
    padding-top: 2.75em;
  }

  h1 {
    font-size: 1.5em;
  }

  .rules {
    flex-direction: column;
    gap: 0.6em;
  }

  .controls {
    gap: 1em;
  }
}

@media (max-width: 480px) {
  #header nav a[href="#menu"] {
    overflow: hidden;
    padding-right: 0;
    text-indent: 5em;
    white-space: nowrap;
    width: 5em;
  }

  #header nav a[href="#menu"]::before,
  #header nav a[href="#menu"]::after {
    right: 0;
    width: 100%;
  }
}