:root {
  color-scheme: dark;
  --bg: #101010;
  --panel: #171717;
  --panel2: #202020;
  --field: #0f0f0f;
  --line: #3f3f3f;
  --line-soft: #292929;
  --muted: #9a9a9a;
  --text: #c9c9c9;
  --cyan: #8d8d8d;
  --amber: #a8a8a8;
  --orange: #a8a8a8;
}

* { box-sizing: border-box; }

html {
  width: 100%;
  height: 100%;
  overflow: hidden;
}

body {
  margin: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  overscroll-behavior: none;
  overflow-anchor: none;
  background: var(--bg);
  color: var(--text);
  font-family: Menlo, Monaco, Consolas, "Courier New", monospace;
  font-size: 11px;
}

button, input, select {
  font: inherit;
}

:where(button, select, input[type="text"], input[type="number"], .custom-select-button, .custom-select-option) {
  font-size: 10px;
}

.app {
  display: grid;
  grid-template-columns: minmax(520px, 1fr) 292px;
  gap: 10px;
  position: fixed;
  inset: 0;
  height: 100vh;
  height: 100dvh;
  min-height: 0;
  overflow: hidden;
  overscroll-behavior: none;
  overflow-anchor: none;
  padding: 10px;
}

.stage {
  min-height: 0;
  overflow: hidden;
  overscroll-behavior: contain;
  overflow-anchor: none;
}

.stage, .panel section {
  border: 1px solid var(--line);
  background: var(--panel);
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 9px 10px;
  border-bottom: 1px solid var(--line);
  background: #0d1010;
}

h1, h2, p {
  margin: 0;
}

h1 {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0;
}

h2 {
  min-height: 23px;
  margin: -7px -7px 7px;
  padding: 0 6px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid #252c2c;
  background: var(--panel2);
  color: var(--cyan);
  font-size: 10px;
  text-transform: uppercase;
  cursor: pointer;
  user-select: none;
}

h2::after {
  content: "-";
  width: 15px;
  height: 15px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-left: 6px;
  border: 1px solid #252c2c;
  background: #090c0c;
  color: var(--muted);
  font-weight: 400;
}

.panel section.collapsed {
  padding-bottom: 0;
}

.panel section.collapsed h2 {
  margin-bottom: 0;
  border-bottom: 0;
}

.panel section.collapsed h2::after {
  content: "+";
}

.panel section.collapsed > :not(h2) {
  display: none;
}

p {
  margin-top: 3px;
  color: var(--muted);
}

.toolbar, .row {
  display: flex;
  gap: 6px;
}

.row.two > * {
  flex: 1;
}

button {
  min-height: 20px;
  border: 1px solid #3d4646;
  border-radius: 0;
  background: #171c1c;
  color: var(--text);
  padding: 2px 7px;
  cursor: pointer;
}

button:hover {
  border-color: var(--cyan);
  color: #d8d8d2;
}

button:disabled {
  border-color: #252c2c;
  color: #5d6666;
  background: #101414;
  cursor: default;
}

button:disabled:hover {
  border-color: #252c2c;
  color: #5d6666;
}

button.active {
  border-color: var(--cyan);
  background: #282828;
  color: #d8d8d2;
}

#field {
  display: block;
  width: 100%;
  height: calc(100vh - 164px);
  min-height: 460px;
  background: #070909;
  touch-action: none;
  overscroll-behavior: contain;
  cursor: crosshair;
}

#field:active {
  cursor: grabbing;
}

#playbar {
  display: block;
  width: 100%;
  height: 86px;
  border-top: 1px solid var(--line);
  background: #070909;
  touch-action: none;
  overscroll-behavior: contain;
}

.statusbar {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 8px;
  padding: 7px 10px;
  border-top: 1px solid var(--line);
  color: var(--muted);
}

.statusbar span:nth-child(2) { text-align: center; }
.statusbar span:nth-child(3) { text-align: right; }

.panel {
  display: flex;
  flex-direction: column;
  gap: 6px;
  max-height: calc(100vh - 20px);
  overflow: auto;
  overscroll-behavior: contain;
  overflow-anchor: none;
}

.panel section {
  padding: 7px;
}

label {
  display: grid;
  gap: 3px;
  margin: 5px 0;
  color: var(--muted);
}

label.check {
  display: flex;
  align-items: center;
  gap: 7px;
}

input[type="text"], input[type="number"], select {
  min-width: 0;
  width: 100%;
  border: 1px solid #343c3c;
  border-radius: 0;
  background: #090c0c;
  color: var(--text);
  padding: 3px 5px;
  min-height: 20px;
}

input[type="range"] {
  width: 100%;
  accent-color: var(--cyan);
}

@media (hover: hover) and (pointer: fine) {
  input[type="range"] {
    height: 13px;
    margin: 2px 0 0;
    appearance: none;
    -webkit-appearance: none;
    border: 1px solid #3d4646;
    border-radius: 0;
    background:
      linear-gradient(90deg, #899393 0 var(--fill, 50%), #171c1c var(--fill, 50%) 100%);
    box-shadow: 0 0 0 1px #070909 inset;
  }

  input[type="range"]::-webkit-slider-runnable-track {
    height: 11px;
    background: transparent;
    border: 0;
  }

  input[type="range"]::-webkit-slider-thumb {
    width: 0;
    height: 11px;
    margin-top: 0;
    appearance: none;
    -webkit-appearance: none;
    background: transparent;
    border: 0;
    border-radius: 0;
  }

  input[type="range"]::-moz-range-track {
    height: 11px;
    background: transparent;
    border: 0;
  }

  input[type="range"]::-moz-range-thumb {
    width: 0;
    height: 11px;
    background: transparent;
    border: 0;
    border-radius: 0;
  }

  input[type="range"]:hover,
  input[type="range"]:focus-visible {
    border-color: var(--cyan);
    background:
      linear-gradient(90deg, #b7c3c3 0 var(--fill, 50%), #202828 var(--fill, 50%) 100%);
  }

  .native-select-hidden {
    position: absolute !important;
    width: 1px !important;
    height: 1px !important;
    opacity: 0 !important;
    pointer-events: none !important;
  }

  .custom-select {
    position: relative;
    width: 100%;
    margin-top: 3px;
  }

  .custom-select-button {
    position: relative;
    width: 100%;
    min-height: 20px;
    padding: 2px 18px 2px 5px;
    border: 1px solid #343c3c;
    border-radius: 0;
    background: #090c0c;
    color: var(--text);
    text-align: left;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
    cursor: pointer;
  }

  .custom-select-button::after {
    content: "v";
    position: absolute;
    right: 7px;
    top: 50%;
    transform: translateY(-54%);
    color: var(--muted);
    font-size: 9px;
  }

  .custom-select-button:hover,
  .custom-select.open .custom-select-button {
    border-color: var(--cyan);
    background: #202020;
    color: #d8d8d2;
  }

  .custom-select-menu {
    position: fixed;
    z-index: 200;
    min-width: 120px;
    max-height: 260px;
    overflow: auto;
    border: 1px solid var(--cyan);
    background: #090c0c;
    box-shadow: 0 8px 22px rgba(0, 0, 0, 0.48);
  }

  .custom-select-option {
    min-height: 20px;
    padding: 4px 7px;
    color: var(--text);
    cursor: pointer;
    user-select: none;
  }

  .custom-select-option:hover,
  .custom-select-option.active {
    background: #282828;
    color: #d8d8d2;
  }
}

@media (hover: none), (pointer: coarse), (max-width: 860px) {
  input[type="range"],
  select {
    min-height: 28px;
  }
}

.value-readout {
  float: right;
  color: var(--text);
}

@media (max-width: 860px) {
  .app {
    grid-template-columns: 1fr;
  }
  canvas {
    height: 62vh;
  }
  .panel {
    max-height: none;
  }
}

/* s3g-mc browser utility convergence layer */
.topbar,
.stage,
.statusbar,
.panel {
  background: var(--panel);
}

.panel {
  padding: 5px;
  border-left-color: var(--line-soft);
  font-size: 10px;
}

.panel section {
  position: relative;
  margin-bottom: 5px;
  padding: 6px;
  border: 0;
  background: #141414;
}

.panel section::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 2px;
  background: #c9c9c2;
  opacity: 0.58;
  pointer-events: none;
}

.panel h2 {
  min-height: 23px;
  margin: -6px -6px 6px;
  padding: 0 5px 0 6px;
  border-bottom: 0;
  background: #0f0f0f;
  color: #bdbdb8;
  font-size: 10px;
  font-weight: 400;
  letter-spacing: 0;
}

.panel h2::after {
  width: 15px;
  height: 15px;
  margin-left: 6px;
  border-color: var(--line-soft);
  background: var(--field);
}

.panel label {
  margin: 4px 0;
  color: var(--muted);
  font-size: 10px;
}

button,
.custom-select-button {
  background: #0b0b0b;
}

button {
  text-transform: uppercase;
}

button:hover,
button.active,
.custom-select-button:hover,
.custom-select.open .custom-select-button {
  border-color: #555;
  background: #111;
  color: #d8d8d2;
}

.panel button,
.panel select,
.panel input[type="text"],
.panel input[type="number"],
.panel .custom-select-button,
.panel .custom-select-option {
  min-height: 18px;
  padding-left: 5px;
  padding-right: 5px;
  font-size: 10px;
}

.panel .custom-select-button {
  padding-right: 18px;
}

.panel input[type="range"] {
  height: 13px;
}

@media (hover: hover) and (pointer: fine) {
  input[type="range"],
  input[type="range"]:hover,
  input[type="range"]:focus-visible {
    border-color: #4b4b4b;
    background:
      linear-gradient(90deg, #8d8d8d 0 var(--fill, 50%), #232323 var(--fill, 50%) 100%);
  }
}