:root {
  color-scheme: dark;
  --bg: #071016;
  --panel: #101a21;
  --panel-2: #17222a;
  --text: #ecf7f7;
  --muted: #9fb1b3;
  --line: rgba(255,255,255,.12);
  --aqua: #4ff5d2;
  --pink: #ff4fa3;
  --gold: #ffd166;
  --blue: #61a8ff;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  letter-spacing: 0;
  overscroll-behavior: none;
}

body {
  min-height: 100dvh;
  overflow: hidden;
}

button,
select,
input {
  font: inherit;
}

.app {
  min-height: 100dvh;
  padding: max(12px, env(safe-area-inset-top)) max(12px, env(safe-area-inset-right)) max(12px, env(safe-area-inset-bottom)) max(12px, env(safe-area-inset-left));
  display: grid;
  grid-template-rows: auto minmax(280px, 1fr) auto;
  gap: 10px;
  background:
    radial-gradient(circle at 50% 46%, rgba(79,245,210,.13), transparent 34%),
    linear-gradient(160deg, #071016 0%, #0a1e20 45%, #171018 100%);
}

.topbar,
.panel {
  width: min(760px, 100%);
  margin: 0 auto;
}

.topbar {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 12px;
}

.eyebrow,
.version {
  margin: 0;
  color: var(--aqua);
  font-weight: 800;
  font-size: .72rem;
  text-transform: uppercase;
}

h1 {
  margin: 2px 0 0;
  font-size: clamp(1.1rem, 5.1vw, 1.9rem);
  line-height: 1.05;
}

.meters {
  display: grid;
  grid-template-columns: repeat(3, minmax(54px, 1fr));
  gap: 6px;
  min-width: 180px;
}

.meters div {
  background: rgba(16,26,33,.76);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 7px 8px;
  text-align: right;
}

.meters span {
  display: block;
  font-weight: 900;
  font-size: clamp(.92rem, 3.8vw, 1.2rem);
  line-height: 1;
}

.meters small {
  color: var(--muted);
  font-size: .6rem;
  font-weight: 800;
}

.play-area {
  position: relative;
  width: min(92dvw, 70dvh, 760px);
  aspect-ratio: 1;
  margin: auto;
  display: block;
}

.stage-wrap {
  position: relative;
  width: 100%;
  aspect-ratio: 1;
  touch-action: none;
  user-select: none;
}

canvas {
  display: block;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(17,34,40,.92) 0%, rgba(6,12,17,.96) 70%);
  box-shadow: 0 0 0 1px rgba(255,255,255,.08), 0 18px 70px rgba(0,0,0,.45);
}

body.lite-render canvas {
  box-shadow: 0 0 0 1px rgba(255,255,255,.08);
  background: #071016;
}

body.lite-render .app {
  background: linear-gradient(160deg, #071016 0%, #0a1b1d 100%);
}

.judge {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  padding: 8px 14px;
  border-radius: 8px;
  background: rgba(7,16,22,.7);
  border: 1px solid var(--line);
  font-size: clamp(1.1rem, 5vw, 2rem);
  font-weight: 950;
  min-width: 118px;
  text-align: center;
  pointer-events: none;
  transition: opacity .16s ease, scale .16s ease;
}

.judge.pop {
  scale: 1.09;
}

.lane-labels {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.lane-labels span {
  position: absolute;
  width: 32px;
  height: 32px;
  margin: -16px 0 0 -16px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  color: #071016;
  font-weight: 950;
  font-size: .9rem;
  background: var(--text);
}

.lane-labels span.has-key {
  width: 38px;
  height: 38px;
  margin: -19px 0 0 -19px;
  grid-template-rows: 1fr auto;
  gap: 0;
  padding: 4px 0 3px;
  line-height: 1;
}

.lane-labels span small {
  font-size: .55rem;
  font-weight: 950;
  opacity: .72;
}

.panel {
  display: grid;
  gap: 8px;
  background: rgba(16,26,33,.82);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px;
  backdrop-filter: blur(18px);
}

body.lite-render .panel {
  backdrop-filter: none;
}

body.settings-open .stage-wrap {
  visibility: hidden;
  pointer-events: none;
}

.main-controls {
  display: grid;
  gap: 8px;
}

body.settings-open .main-controls {
  display: grid;
}

.source-row {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 82px;
  gap: 8px;
}

.file-picker {
  display: grid;
  place-items: center;
  min-height: 46px;
  border: 1px dashed rgba(79,245,210,.55);
  border-radius: 8px;
  background: rgba(79,245,210,.08);
  color: var(--text);
  font-weight: 850;
  text-align: center;
}

.file-picker input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.url-details {
  position: relative;
  z-index: 12;
}

.url-details summary {
  display: grid;
  min-height: 46px;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: linear-gradient(180deg, #25414a, #17222a);
  color: var(--text);
  font-weight: 850;
  list-style: none;
  cursor: pointer;
  user-select: none;
}

.url-details summary::-webkit-details-marker {
  display: none;
}

.url-loader {
  position: absolute;
  right: 0;
  bottom: calc(100% + 8px);
  width: min(620px, calc(100dvw - 24px));
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 8px;
  padding: 8px;
  border: 1px solid rgba(255,255,255,.18);
  border-radius: 8px;
  background: rgba(12,20,26,.98);
  box-shadow: 0 14px 36px rgba(0,0,0,.45);
}

.url-loader input {
  min-height: 42px;
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255,255,255,.06);
  color: var(--text);
  padding: 0 12px;
  font-weight: 750;
}

.url-loader input::placeholder {
  color: rgba(236,247,247,.5);
}

.url-loader button {
  min-width: 92px;
}

.controls,
.options {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}

.options {
  grid-template-columns: repeat(3, 1fr);
}

button,
select {
  min-height: 42px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel-2);
  color: var(--text);
  font-weight: 850;
}

button {
  background: linear-gradient(180deg, #25414a, #17222a);
}

button:disabled {
  opacity: .45;
}

#playBtn:not(:disabled) {
  background: linear-gradient(180deg, #4ff5d2, #16a889);
  color: #06120f;
}

.options label,
.option-action {
  display: grid;
  gap: 4px;
}

.options span,
.option-action span {
  color: var(--muted);
  font-size: .68rem;
  font-weight: 800;
}

.settings-panel {
  position: absolute;
  inset: 0;
  z-index: 30;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  width: 100%;
  max-height: 100%;
  margin: 0;
  overflow: auto;
  pointer-events: auto;
  padding: 12px;
  border: 1px solid rgba(255,255,255,.18);
  border-radius: 8px;
  background: rgba(12,20,26,.98);
  box-shadow: 0 -18px 48px rgba(0,0,0,.46);
}

.settings-panel[hidden] {
  display: none;
}

.settings-panel label {
  display: grid;
  gap: 4px;
}

.settings-panel label > span {
  color: var(--muted);
  font-size: .72rem;
  font-weight: 850;
}

.settings-head {
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.settings-head strong {
  font-size: .96rem;
}

.settings-head button {
  min-height: 34px;
  padding: 0 12px;
}

.range-control {
  display: grid;
  grid-template-columns: auto minmax(80px, 1fr) 30px;
  align-items: center;
  gap: 10px;
  min-height: 40px;
  padding: 8px 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255,255,255,.045);
}

.range-control span {
  color: var(--muted);
  font-size: .78rem;
  font-weight: 850;
}

.range-control strong {
  color: var(--gold);
  font-size: 1.08rem;
  text-align: right;
}

.range-control input {
  width: 100%;
  accent-color: var(--gold);
}

@media (max-width: 620px) {
  .settings-panel {
    grid-template-columns: 1fr;
    width: 100%;
    max-height: 100%;
    padding: 10px;
  }
}

.status {
  margin: 0;
  color: var(--muted);
  font-size: .76rem;
  line-height: 1.35;
}

.version {
  color: rgba(255,255,255,.38);
  text-align: right;
}

@media (max-width: 430px) {
  .app {
    gap: 8px;
  }

  .topbar {
    align-items: start;
  }

  .meters {
    min-width: 156px;
    grid-template-columns: repeat(3, 50px);
  }

  .meters div {
    padding: 6px;
  }

  .controls {
    grid-template-columns: 1.1fr 1fr 1.25fr;
  }

  .source-row {
    grid-template-columns: minmax(0, 1fr) 70px;
  }

  .url-loader {
    width: calc(100dvw - 24px);
    grid-template-columns: minmax(0, 1fr) 70px;
  }

  .options {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  button,
  select {
    min-height: 40px;
    font-size: .82rem;
  }
}

@media (max-height: 720px) {
  .play-area {
    width: min(84dvw, 52dvh, 640px);
  }

  .status {
    display: none;
  }
}