:root {
  --base-lightest: white;
  --base-lighter: #d8dbde;
  --base-light: #b6b9bc;
  --base-dark: #5c5e5f;
  --base-darker: #3b3c3d;
  --base-darkest: #1b1b1c;
  --primary-lightest: #f198ff;
  --primary-lighter: #eb67ff;
  --primary-light: #e538ff;
  --primary-dark: #9328a4;
  --primary-darker: #821193;
  --primary-darkest: #6a007b;
  --secondary-lightest: #ffedaa;
  --secondary-lighter: #fbd754;
  --secondary-light: #ffc800;
  --secondary-dark: #bc9400;
  --secondary-darker: #8e6f00;
  --secondary-darkest: #755c00;
}

@font-face {
  font-family: 'VT323-Regular';
  src: url('../fonts/VT323-Regular.woff2') format('woff2');
}

@keyframes highlight {
  from {
    transform: scale3d(1, 1, 1) translate3d(0, 0, 0);
    opacity: 0;
  }

  1% {
    opacity: 1;
  }

  to {
    transform: scale3d(4, 4, 4) translate3d(-50%, 0, 0);
    opacity: 0;
  }
}

@keyframes erase {
  0% {
    color: var(--secondary-light);
  }

  1%,
  8% {
    color: #000;
  }

  9%,
  100% {
    color: var(--secondary-light);
  }
}

@keyframes button-highlight {
  from {
    background-color: var(--primary-light);
  }

  50% {
    background-color: var(--secondary-light);
  }

  to {
    background-color: var(--primary-light);
  }
}

html {
  font: 30px monospace;
  font-family: 'VT323-Regular', monospace;
  color: var(--base-lightest);
  background: var(--base-darkest);
}

a {
  color: var(--primary-lighter);
  font-weight: bold;
}
a:hover {
  color: var(--secondary-light);
}
a:focus,
a:focus-visible,
select:focus,
select:focus-visible {
  outline-style: solid;
  outline-color: var(--secondary-light);
  outline-width: 3px;
}

button,
a.button {
  background: var(--primary-light);
  color: var(--base-darkest);
  border-radius: 6px;
  border: 4px solid var(--primary-light);
  padding: 3px 6px;
  margin: 0;
  line-height: 1;
  display: block;
  box-sizing: border-box;
  cursor: pointer;
}
button.selected,
a.button.selected {
  background: var(--base-darker);
  color: var(--primary-lighter);
  border: 3px solid var(--primary-light);
}
a.button:focus,
a.button:focus-visible,
button:focus,
button:focus-visible,
a.button:hover,
button:hover {
  outline: none;
  border-color: var(--secondary-light);
}
button:disabled {
  background-color: var(--base-dark);
  border-color: var(--base-dark);
  cursor: default;
}
button.hide,
a.button.hide {
  display: none;
}

p,
li {
  line-height: 1.8;
}

.app {
  position: absolute;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.header {
  display: flex;
  align-items: flex-end;
  padding: 6px 20px;
  gap: 12px;
}
.header h1,
.header h2 {
  margin: 0;
  color: var(--base-light);
  font-weight: normal;
}
.header h1 {
  font-size: 1.1rem;
  color: var(--secondary-light);
}
.header h2 {
  font-size: 0.8rem;
  flex-grow: 1;
  margin-left: 6px;
  line-height: 1.1;
}
.header svg {
  width: 30px;
  height: 30px;
  vertical-align: middle;
}
.header h1 span {
  animation: erase 13s ease-in-out infinite;
}
.header h1 span:nth-child(2) {
  animation-delay: 1s;
}
.header h1 span:nth-child(3) {
  animation-delay: 2s;
}
.header h1 span:nth-child(4) {
  animation-delay: 3s;
}
.header h1 span:nth-child(5) {
  animation-delay: 4s;
}
.header h1 span:nth-child(6) {
  animation-delay: 5s;
}
.header h1 span:nth-child(7) {
  animation-delay: 6s;
}
.header h1 span:nth-child(8) {
  animation-delay: 7s;
}
.header h1 span:nth-child(9) {
  animation-delay: 8s;
}
.header h1 span:nth-child(10) {
  animation-delay: 9s;
}
.header h1 span:nth-child(11) {
  animation-delay: 10s;
}
.header h1 span:nth-child(12) {
  animation-delay: 11s;
}
.header h1 span:nth-child(13) {
  animation-delay: 12s;
}

@media (orientation: portrait) {
  .header {
    gap: 6px;
    padding: 6px 12px;
    align-items: center;
  }
  .header h1 {
    font-size: 1rem;
    flex-grow: 1;
  }
  .header h2 {
    display: none;
  }
  .header svg {
    width: 22px;
    height: 22px;
  }
}
@media (max-height: 600px) {
  .header {
    gap: 6px;
    padding: 3px 12px;
    align-items: center;
  }
  .header h1 {
    font-size: 1rem;
    flex-grow: 1;
  }
  .header h2 {
    display: none;
  }
  .header button,
  .header .button {
    padding: 0 6px;
  }
  .header svg {
    width: 22px;
    height: 22px;
  }
}

.main {
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  border-radius: 12px;
  border: 3px solid var(--base-dark);
  box-sizing: border-box;
  margin: 0 12px;
}
.selector {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 0 12px 12px;
  border-bottom: 3px solid var(--base-darkest);
  background-color: rgba(255, 255, 255, 0.05);
}
.selector select {
  text-align: center;
  max-width: 100%;
}
@media (max-height: 600px) {
  .selector select,
  .selector label {
    font-size: 0.8rem;
  }
}

.composition-wrapper {
  flex-grow: 1;
  background-image: linear-gradient(
    90deg,
    #2c2c2e 0%,
    #2c2c2e 50%,
    #313133 50%,
    #313133 100%
  );
  background-size: 8px 8px;
  border-bottom-left-radius: 12px;
  border-bottom-right-radius: 12px;
  position: relative;
}
.composition {
  position: absolute;
  top: 12px;
  right: 12px;
  bottom: 66px;
  left: 12px;
  overflow: hidden;
  touch-action: none;
  user-select: none;
  -webkit-user-drag: none;
  -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
}
.composition,
.note,
.note:disabled {
  cursor:
    url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' version='1.1' viewBox='0 0 48 48' width='48' height='48'%3e%3ccircle cx='24' cy='24' r='22' fill='%23000000' fill-opacity='0.8' stroke='%23eb67ff' stroke-width='4' stroke-location='inside' /%3e%3c/svg%3e")
      16 16,
    pointer;
}
.note-cursor {
  width: 48px;
  height: 48px;
  box-sizing: border-box;
  border-radius: 50%;
  border: 4px solid var(--primary-lighter);
  background: rgba(0, 0, 0, 0.8);
  position: fixed;
  display: none;
  z-index: 10000;
  touch-action: none;
  user-select: none;
  -webkit-user-drag: none;
  -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
}
.note-cursor.active {
  display: block;
}
.note,
.note:disabled {
  position: absolute;
  background: #000;
  border-radius: 3px;
  border: 1px solid var(--base-darkest);
  padding: 0;
  display: flex;
  align-items: stretch;
  box-sizing: border-box;
  z-index: 1;
}
.note:hover {
  border-color: var(--base-darkest);
}
.note.active {
  background: var(--secondary-light);
  z-index: 100;
}
.note.active:hover {
  background-color: var(--secondary-lighter);
  border-color: var(--base-darkest);
  z-index: 101;
}
.note.active:focus-visible {
  background-color: var(--primary-light);
}
.note.active:focus-visible:hover {
  background-color: var(--primary-lightest);
}
.note .cell {
  flex-grow: 1;
  opacity: 0;
}
.note .note-label {
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  height: 1px;
  overflow: hidden;
  position: absolute;
  white-space: nowrap;
  width: 1px;
}
.note:hover .note-label {
  clip: auto;
  clip-path: none;
  height: auto;
  width: auto;
  color: var(--base-lightest);
  z-index: 999;
  text-align: center;
  font-size: 0.7rem;
  width: 100px;
  bottom: -30px;
  left: 50%;
  margin-left: -50px;
  text-shadow: 1px 1px 2px black;
}
body.playing .note.active .cell.highlight {
  background: var(--secondary-lightest);
  animation: highlight 0.3s ease-in-out;
  animation-fill-mode: none;
}

.pagination {
  position: absolute;
  right: 12px;
  bottom: 12px;
  display: flex;
  gap: 6px;
  align-items: stretch;
}
.pagination button {
  padding: 3px;
}
.pagination button svg {
  width: 30px;
  height: 30px;
  display: block;
}
@media (max-height: 600px) {
  .pagination label {
    font-size: 0.8rem;
  }
  .pagination button svg {
    width: 22px;
    height: 22px;
  }
  .composition {
    bottom: 54px;
  }
}

.controls {
  display: flex;
  justify-content: center;
  align-items: flex-end;
  gap: 8px;
  padding: 12px;
}
.controls button {
  padding: 6px;
  position: relative;
}
.controls button svg {
  width: 40px;
  height: 40px;
  display: block;
}
#toggle-play-button {
  animation: button-highlight 3s ease-in-out infinite;
}
#toggle-play-button.playing {
  animation: none;
}
#toggle-play-button svg {
  width: 60px;
  height: 60px;
}
#toggle-play-button .pause-icon,
#toggle-play-button.playing .play-icon {
  display: none;
}
#toggle-play-button.playing .pause-icon {
  display: block;
}
#backward-button .number,
#forward-button .number {
  font-size: 0.8rem;
  position: absolute;
  bottom: 2px;
  font-weight: bold;
}
#backward-button .number {
  left: 8px;
}
#forward-button .number {
  right: 8px;
}

@media (orientation: portrait) {
  .controls button svg {
    width: 26px;
    height: 26px;
  }
  #toggle-play-button svg {
    width: 40px;
    height: 40px;
  }
}
@media (max-height: 600px) {
  .controls {
    padding: 4px 12px;
  }
  .controls button svg {
    width: 22px;
    height: 22px;
  }
  #toggle-play-button svg {
    width: 36px;
    height: 36px;
  }
}

.panel {
  z-index: 99999;
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.9);
  padding: 20px;
  box-sizing: border-box;
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: stretch;
}
.panel.active {
  display: flex;
}
.close-panel {
  position: absolute;
  top: 20px;
  right: 20px;
}
.close-panel svg {
  width: 40px;
  height: 40px;
  display: block;
}
.panel h2,
.panel .form {
  margin: 0 auto;
  width: 100%;
  box-sizing: border-box;
  max-width: 800px;
}
.panel h2 {
  margin-bottom: 0.2rem;
  font-weight: normal;
}

.panel fieldset {
  padding: 0.33rem 0.667rem;
  margin-bottom: 0.667rem;
  background: var(--base-darkest);
}
.input-group {
  display: flex;
  margin-bottom: 0.2rem;
}
.input-group:last-child {
  margin: 0;
}
.input-group label {
  flex-basis: 120px;
}
.input-group input {
  flex-grow: 1;
}
.input-group .value {
  flex-basis: 60px;
  text-align: right;
  color: var(--primary-lighter);
  font-weight: bold;
}
input[type='range'] {
  accent-color: var(--secondary-light);
}
.radio-fieldset label {
  margin-right: 0.5rem;
  white-space: nowrap\;;
}
.radio-fieldset label input {
  margin-right: 0.2rem;
  accent-color: var(--secondary-light);
}
.form label + p {
  margin: 0 0 0.3rem;
  font-size: 0.8rem;
  color: var(--base-light);
  line-height: 1;
}
.form input[type='text'] {
  width: 100%;
  max-width: 600px;
  margin-bottom: 0.5rem;
}
.form button {
  margin-top: 0.5rem;
  margin-bottom: 0.5rem;
}

.visually-hidden {
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  height: 1px;
  overflow: hidden;
  position: absolute;
  white-space: nowrap;
  width: 1px;
}