:root {
  color-scheme: dark;
  --bg: #10191c;
  --ink: #eaf2ed;
  --muted: #9caeaa;
  --accent: #b5f19b;
  --border: #ffffff20;
  font-family: Inter, system-ui, sans-serif;
}
* {
  box-sizing: border-box;
}
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
}
main {
  height: 100dvh;
  min-height: 620px;
  position: relative;
  overflow: hidden;
}
canvas {
  width: 100%;
  height: 100%;
  display: block;
}
header {
  position: absolute;
  top: max(24px, env(safe-area-inset-top));
  left: 32px;
  right: 32px;
  display: flex;
  align-items: center;
  gap: 24px;
}
.home {
  font-size: 14px;
  font-weight: 750;
  color: var(--ink);
  text-decoration: none;
}
.eyebrow {
  font-size: 10px;
  letter-spacing: 0.17em;
  color: var(--muted);
  font-weight: 650;
}
.engine {
  margin-left: auto;
  font-size: 11px;
  color: var(--muted);
}
.intro {
  position: absolute;
  top: 110px;
  left: 40px;
  pointer-events: none;
}
h1 {
  font-weight: 450;
  font-size: clamp(40px, 5vw, 70px);
  line-height: 1.05;
  letter-spacing: -0.055em;
  margin: 18px 0;
}
h1 em {
  font-style: normal;
  color: var(--accent);
}
.intro p {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.6;
}
.panel {
  position: absolute;
  top: 102px;
  right: 28px;
  width: 310px;
  padding: 18px;
  background: #10191ce8;
  backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  border-radius: 14px;
}
button {
  font: inherit;
  font-size: 12px;
  color: var(--ink);
  background: #ffffff08;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 11px 12px;
  cursor: pointer;
  touch-action: manipulation;
}
button:hover {
  background: #ffffff18;
}
button[aria-pressed="true"] {
  background: var(--accent);
  color: var(--bg);
  border-color: var(--accent);
}
button:disabled {
  opacity: 0.4;
  cursor: wait;
}
button:focus-visible,
summary:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}
.modes {
  display: flex;
  gap: 4px;
}
.modes button {
  flex: 1;
  padding: 12px 5px;
}
.actions {
  display: flex;
  gap: 5px;
}
.actions button {
  flex: 1;
  padding: 10px 5px;
}
#status {
  font-size: 12px;
  color: var(--accent);
  min-height: 30px;
  line-height: 1.5;
}
.disturbances {
  margin-top: 22px;
}
.disturbances > div {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
  margin-top: 10px;
}
.legend {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  font-size: 10px;
  margin: 18px 0;
  color: var(--muted);
}
.legend label {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 6px;
}
input {
  accent-color: var(--accent);
}
.reference {
  color: #b5f19b;
}
.actual {
  color: #68bcff;
}
.prediction {
  color: #ffc18b;
}
details {
  border-top: 1px solid var(--border);
  padding-top: 13px;
  font-size: 11px;
  line-height: 1.6;
  color: var(--muted);
}
summary {
  cursor: pointer;
  color: var(--ink);
}
output {
  display: block;
  white-space: pre-line;
  font-family: monospace;
  font-size: 10px;
}
.instructions {
  font-size: 10px;
  line-height: 1.8;
  color: var(--muted);
  margin-bottom: 0;
}
#ghost-time {
  font-size: 12px;
  color: #c8b2ff;
}
.hud {
  position: absolute;
  left: 40px;
  bottom: 35px;
  display: flex;
  gap: 32px;
  background: #10191ce0;
  border: 1px solid var(--border);
  padding: 18px 24px;
  border-radius: 12px;
  pointer-events: none;
}
.hud div {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.hud span {
  font-size: 9px;
  letter-spacing: 0.14em;
  color: var(--muted);
}
.hud strong {
  font-size: 23px;
  font-weight: 500;
  font-variant-numeric: tabular-nums;
}
.hud small {
  font-size: 12px;
  color: var(--muted);
}
#loading {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  background: #10191cec;
  font-size: 15px;
  z-index: 9;
}
#error {
  position: absolute;
  bottom: 20px;
  left: 20px;
  right: 20px;
  padding: 18px;
  background: #572322;
  z-index: 10;
}
.sticks {
  display: none;
  position: absolute;
  bottom: 24px;
  left: 24px;
  right: 24px;
  justify-content: space-between;
  pointer-events: none;
}
.stick {
  width: 115px;
  height: 115px;
  border-radius: 50%;
  background: #ffffff0c;
  border: 1px solid #ffffff35;
  position: relative;
  touch-action: none;
  pointer-events: auto;
  user-select: none;
}
.stick i {
  position: absolute;
  left: calc(50% - 19px);
  top: calc(50% - 19px);
  height: 38px;
  width: 38px;
  background: #b5f19b55;
  border: 1px solid var(--accent);
  border-radius: 50%;
  pointer-events: none;
}
.stick span {
  position: absolute;
  bottom: -17px;
  width: 100%;
  text-align: center;
  font-size: 8px;
  letter-spacing: 0.1em;
  color: var(--muted);
}
[hidden] {
  display: none !important;
}
@media (pointer: coarse) {
  body.manual .sticks {
    display: flex;
  }
}
@media (max-width: 800px) {
  main {
    min-height: 0;
  }
  .intro {
    top: 78px;
    left: 22px;
  }
  .intro h1 {
    font-size: 36px;
    margin: 10px 0;
  }
  .intro p {
    display: none;
  }
  header {
    top: max(16px, env(safe-area-inset-top));
    left: 20px;
    right: 20px;
    gap: 15px;
  }
  .engine {
    display: none;
  }
  header > .eyebrow {
    font-size: 8px;
  }
  .panel {
    top: auto;
    bottom: 20px;
    right: 16px;
    left: 16px;
    width: auto;
    padding: 12px;
  }
  .modes {
    max-width: none;
  }
  .hud {
    bottom: auto;
    top: 207px;
    left: 20px;
    padding: 10px 14px;
    gap: 20px;
  }
  .hud strong {
    font-size: 17px;
  }
  .hud div {
    gap: 5px;
  }
  .disturbances {
    margin-top: 12px;
  }
  .disturbances > div {
    display: flex;
    flex-wrap: wrap;
  }
  .disturbances button {
    flex: 1;
    font-size: 10px;
    white-space: nowrap;
    padding: 10px 5px;
  }
  .legend {
    margin: 10px 0;
    align-items: center;
  }
  .legend label {
    width: auto;
  }
  .instructions {
    font-size: 9px;
  }
  details p {
    margin: 6px 0;
  }
  body.manual .panel {
    bottom: 172px;
  }
  body.manual .intro {
    display: none;
  }
  body.manual .hud {
    top: 65px;
  }
  body.manual .instructions {
    display: none;
  }
  body.manual .disturbances,
  body.manual .legend {
    display: none;
  }
  .sticks {
    bottom: max(25px, env(safe-area-inset-bottom));
  }
  #ghost-time {
    margin: 8px 0 0;
  }
  details[open] {
    max-height: 155px;
    overflow: auto;
  }
}
@media (max-height: 550px) {
  .intro {
    display: none;
  }
  .panel {
    top: 64px;
    bottom: auto;
    left: auto;
    right: 16px;
    width: 270px;
  }
  .hud {
    top: auto;
    bottom: 18px;
    left: 20px;
  }
  .instructions,
  .disturbances > .eyebrow {
    display: none;
  }
  .disturbances {
    margin-top: 8px;
  }
  .legend {
    margin: 8px 0;
  }
  .sticks {
    right: 310px;
  }
  body.manual .panel {
    bottom: auto;
  }
  body.manual .hud {
    top: 66px;
    bottom: auto;
  }
  body.manual .sticks .stick {
    width: 95px;
    height: 95px;
  }
}
/* Short screens keep the stage and both sticks inside the viewport. */
@media (max-height: 620px) {
  main {
    min-height: 0;
  }
  .panel {
    max-height: calc(100dvh - 92px);
    overflow: auto;
  }
}
@media (max-height: 550px) {
  body.manual .disturbances,
  body.manual .legend,
  body.manual .instructions {
    display: none;
  }
  body.manual .panel {
    width: 270px;
  }
  .sticks {
    bottom: 24px;
  }
}
@media (max-width: 800px) and (min-height: 551px) {
  .intro {
    top: 72px;
  }
  .intro h1 {
    font-size: 27px;
    margin: 8px 0;
  }
  .intro h1 br {
    display: none;
  }
  .intro .eyebrow {
    font-size: 8px;
  }
  .hud {
    top: 139px;
  }
}

/* Six concise telemetry cells wrap on phones and short landscapes. */
.hud {
  gap: 22px;
}
@media (max-width: 800px) {
  .hud {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px 22px;
  }
}
@media (max-height: 550px) {
  .hud {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px 20px;
  }
}

@media (max-width: 800px) and (min-height: 551px) {
  .hud {
    gap: 7px 20px;
  }
  .panel {
    padding: 10px 12px;
  }
  .instructions {
    display: none;
  }
  #status {
    min-height: 18px;
    margin: 8px 0;
  }
  .disturbances {
    margin-top: 8px;
  }
}

/* Pushes remain available while flying on touch devices. */
@media (max-width: 800px), (max-height: 550px) {
  body.manual .disturbances {
    display: block;
  }
}