main {
  opacity: 1;
}

:root {
  color-scheme: dark;
  --bg: #06070a;
  --panel: #101216;
  --panel-2: #15171d;
  --line: #2a3035;
  --line-hot: #6df2c2;
  --text: #eff4ee;
  --muted: #8d9a97;
  --dim: #59625f;
  --green: #6df2c2;
  --cyan: #5bbcff;
  --red: #ff5c7a;
  --amber: #f7c948;
  --violet: #b594ff;
  --shadow: rgba(0, 0, 0, .4);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html,
body {
  min-height: 100%;
}

body {
  margin: 0;
  background:
    linear-gradient(90deg, rgba(255,255,255,.025) 1px, transparent 1px),
    linear-gradient(0deg, rgba(255,255,255,.02) 1px, transparent 1px),
    var(--bg);
  background-size: 34px 34px;
  color: var(--text);
  overflow: hidden;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input {
  font: inherit;
}

button {
  color: var(--text);
  background: transparent;
  border: 1px solid var(--line);
  min-height: 44px;
  cursor: pointer;
}

button:hover,
button:focus-visible {
  border-color: var(--green);
  outline: none;
}

button:active {
  transform: translateY(1px);
}

#app {
  min-height: 100vh;
  display: grid;
  grid-template-rows: auto 1fr;
}

.topbar {
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 10px 18px;
  border-bottom: 1px solid var(--line);
  background: rgba(6, 7, 10, .92);
  backdrop-filter: blur(16px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 44px;
  min-width: 0;
}

.brand:focus-visible {
  outline: 1px solid var(--green);
  outline-offset: 3px;
}

.brand-mark {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border: 1px solid var(--green);
  background: #08100d;
  color: var(--green);
  font-weight: 900;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

.brand strong,
.brand small {
  display: block;
}

.brand strong {
  font-size: 15px;
  letter-spacing: .04em;
  white-space: nowrap;
}

.brand small {
  color: var(--muted);
  font-size: 11px;
  letter-spacing: .18em;
  text-transform: uppercase;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 6px;
}

.nav-links a {
  min-width: 44px;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 12px;
  border: 1px solid transparent;
  color: var(--muted);
  font-size: 12px;
  letter-spacing: .1em;
  text-transform: uppercase;
}

.nav-links a:hover,
.nav-links a:focus-visible {
  color: var(--text);
  border-color: var(--line);
  outline: none;
}

.workspace {
  min-height: 0;
  display: grid;
  grid-template-columns: 250px minmax(0, 1fr) 340px;
}

.scene-rail,
.control-panel {
  min-height: 0;
  overflow: auto;
  background: rgba(16, 18, 22, .9);
}

.scene-rail {
  border-right: 1px solid var(--line);
  padding: 14px;
}

.control-panel {
  border-left: 1px solid var(--line);
  padding: 14px;
}

.rail-title,
.group-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: var(--dim);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 11px;
  letter-spacing: .18em;
  text-transform: uppercase;
  margin: 2px 0 12px;
}

#fps {
  color: var(--muted);
  letter-spacing: .08em;
}

.scene-list {
  display: grid;
  gap: 8px;
}

.scene-button {
  width: 100%;
  min-height: 78px;
  padding: 12px;
  display: grid;
  gap: 7px;
  text-align: left;
  border-radius: 6px;
  background: #0c0e12;
}

.scene-button strong,
.scene-button span {
  display: block;
}

.scene-button strong {
  font-size: 16px;
  letter-spacing: .02em;
}

.scene-button span {
  color: var(--muted);
  font-size: 12px;
  line-height: 1.35;
}

.scene-button[data-active="true"] {
  border-color: var(--green);
  background:
    linear-gradient(90deg, rgba(109, 242, 194, .16), transparent 58%),
    #101512;
}

.stage-wrap {
  min-width: 0;
  min-height: 0;
  display: grid;
  grid-template-rows: auto minmax(280px, 1fr) auto;
}

.stage-head {
  min-height: 92px;
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 20px;
  padding: 18px 22px 16px;
  border-bottom: 1px solid var(--line);
  background: rgba(6, 7, 10, .65);
}

.kicker {
  margin: 0 0 6px;
  color: var(--green);
  font-size: 12px;
  letter-spacing: .18em;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  font-size: clamp(28px, 4vw, 56px);
  line-height: .92;
  font-weight: 900;
  letter-spacing: 0;
}

.equation {
  max-width: min(420px, 45vw);
  padding: 10px 12px;
  border-left: 1px solid var(--line);
  color: var(--muted);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: clamp(13px, 1.4vw, 18px);
  line-height: 1.35;
  overflow-wrap: anywhere;
}

.stage {
  position: relative;
  min-height: 0;
  background:
    radial-gradient(circle at 50% 45%, rgba(109, 242, 194, .08), transparent 34%),
    #07080b;
  overflow: hidden;
}

.stage:focus-visible {
  outline: 1px solid var(--green);
  outline-offset: -1px;
}

.stage canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
}

#canvas3d {
  display: none;
}

.compile-error {
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: 16px;
  padding: 12px 14px;
  border: 1px solid rgba(255, 92, 122, .7);
  background: rgba(28, 7, 11, .86);
  color: #ffdbe2;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 12px;
  line-height: 1.45;
}

.readout {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--line);
  background: rgba(6, 7, 10, .8);
}

.readout div {
  min-width: 0;
  padding: 12px 16px;
  border-right: 1px solid var(--line);
}

.readout div:last-child {
  border-right: 0;
}

.readout span,
.readout strong {
  display: block;
}

.readout span {
  color: var(--dim);
  font-size: 11px;
  letter-spacing: .16em;
  text-transform: uppercase;
}

.readout strong {
  margin-top: 3px;
  color: var(--text);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: clamp(18px, 2.1vw, 26px);
  font-weight: 800;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.formula-block {
  display: grid;
  gap: 12px;
  margin-bottom: 18px;
}

.formula-field {
  display: grid;
  gap: 7px;
}

.formula-field label {
  color: var(--muted);
  font-size: 12px;
  letter-spacing: .1em;
  text-transform: uppercase;
}

.formula-field input {
  width: 100%;
  min-height: 44px;
  padding: 0 11px;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: #090b0f;
  color: var(--text);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 13px;
}

.formula-field input:focus {
  border-color: var(--green);
  outline: none;
}

.control-group {
  margin-top: 4px;
}

#controls {
  display: grid;
  gap: 12px;
}

.control-row {
  display: grid;
  grid-template-columns: 70px minmax(0, 1fr) 72px;
  align-items: center;
  gap: 10px;
  min-height: 44px;
}

.control-row label {
  color: var(--muted);
  font-size: 13px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.control-row output {
  min-height: 36px;
  display: grid;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 4px;
  color: var(--text);
  background: #090b0f;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 12px;
}

input[type="range"] {
  width: 100%;
  height: 44px;
  accent-color: var(--green);
}

.preset-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-top: 18px;
}

.preset-row button {
  border-radius: 4px;
  background: #0d1014;
}

.preset-row button:last-child {
  border-color: rgba(109, 242, 194, .48);
  color: var(--green);
}

@media (max-width: 1120px) {
  body {
    overflow: auto;
  }

  #app {
    min-height: 100svh;
  }

  .workspace {
    grid-template-columns: 210px minmax(0, 1fr);
    grid-template-rows: minmax(520px, 62svh) auto;
  }

  .control-panel {
    grid-column: 1 / -1;
    border-left: 0;
    border-top: 1px solid var(--line);
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.4fr) auto;
    gap: 16px;
    align-items: start;
  }

  .preset-row {
    min-width: 180px;
    margin-top: 27px;
  }
}

@media (max-width: 760px) {
  .topbar {
    height: auto;
    align-items: flex-start;
    padding: 10px;
  }

  .brand small {
    display: none;
  }

  .nav-links {
    gap: 0;
  }

  .nav-links a {
    padding: 0 8px;
    font-size: 11px;
  }

  .workspace {
    display: block;
  }

  .scene-rail {
    border-right: 0;
    border-bottom: 1px solid var(--line);
    overflow: visible;
  }

  .scene-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    overflow: visible;
    padding-bottom: 0;
  }

  .scene-button {
    min-height: 70px;
  }

  .stage-wrap {
    min-height: 560px;
  }

  .stage-head {
    min-height: 104px;
    align-items: start;
    display: grid;
    gap: 10px;
    padding: 16px 14px;
  }

  .equation {
    max-width: none;
    border-left: 0;
    border-top: 1px solid var(--line);
    padding: 9px 0 0;
  }

  .stage {
    min-height: 360px;
  }

  .control-panel {
    display: block;
    padding-bottom: calc(16px + env(safe-area-inset-bottom));
  }

  .control-row {
    grid-template-columns: 62px minmax(0, 1fr) 64px;
  }
}

@media (max-width: 460px) {
  .brand strong {
    max-width: 148px;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .nav-links a {
    min-height: 44px;
    padding: 0 5px;
    letter-spacing: .04em;
  }

  .readout strong {
    font-size: 16px;
  }

  .readout div {
    padding: 10px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
  }
}