:root {
  --bg: #0a0612;
  --lane-bg: #140e22;
  --lane-border: #3a2d58;
  --receptor: #ff4d9d;
  --text: #f2ebff;
  --muted: #9a8ab8;
  --perfect: #5cff8a;
  --great: #7eb8ff;
  --good: #ffd54f;
  --ok: #c9b8e8;
  --miss: #ff5c5c;
  /* Arcade DDR arrow colors */
  --ddr-red: #d32f2f;
  --ddr-red-hi: #ff5252;
  --ddr-red-glow: rgba(255, 82, 82, 0.65);
  --ddr-blue: #1565c0;
  --ddr-blue-hi: #42a5f5;
  --ddr-blue-glow: rgba(66, 165, 245, 0.65);
  --ddr-green: #2e7d32;
  --ddr-green-hi: #66bb6a;
  --ddr-green-glow: rgba(102, 187, 106, 0.65);
  --ddr-frame-top: #4a4a62;
  --ddr-frame-mid: #252538;
  --ddr-frame-bot: #0e0e18;
  --ddr-frame-border: #6b6b88;
  --font: "Segoe UI", system-ui, sans-serif;
  --stage-ratio: 520 / 480;
}

* { box-sizing: border-box; }

body.game-shell {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
}

.top-bar {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.5rem 1rem;
  border-bottom: 1px solid var(--lane-border);
}

.top-bar h1 {
  margin: 0;
  font-size: 1.1rem;
  flex: 1;
}

.back {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.85rem;
}

.back:hover { color: var(--receptor); }

.chart-name {
  font-size: 0.8rem;
  color: var(--muted);
}

.pad-unlock-banner {
  flex-shrink: 0;
  margin: 0;
  padding: 0.45rem 1rem;
  text-align: center;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--good);
  background: rgba(255, 213, 79, 0.12);
  border-bottom: 1px solid rgba(255, 213, 79, 0.35);
}

.pad-unlock-banner[hidden] {
  display: none;
}

.game-shell .hud {
  flex-shrink: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 2rem;
  padding: 0.5rem 1rem;
  background: #110a1c;
}

.hud-block { display: flex; flex-direction: column; }

.hud-label {
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
}

.hud-value {
  font-size: 1.25rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

.hud-value.small {
  font-size: 0.75rem;
  font-weight: 400;
  max-width: 14rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.hud-judges {
  flex: 1 1 auto;
  min-width: min(100%, 18rem);
}

.judge-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 0.65rem;
  margin-top: 0.15rem;
}

.judge-stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  min-width: 2.75rem;
}

.judge-stat-label {
  font-size: 0.58rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-weight: 600;
}

.judge-stat-val {
  font-size: 1.1rem;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
  line-height: 1.1;
}

.judge-stat.perfect .judge-stat-label,
.judge-stat.perfect .judge-stat-val { color: var(--perfect); }

.judge-stat.great .judge-stat-label,
.judge-stat.great .judge-stat-val { color: var(--great); }

.judge-stat.good .judge-stat-label,
.judge-stat.good .judge-stat-val { color: var(--good); }

.judge-stat.ok .judge-stat-label,
.judge-stat.ok .judge-stat-val { color: var(--ok); }

.judge-stat.miss .judge-stat-label,
.judge-stat.miss .judge-stat-val { color: var(--miss); }

.game-shell .stage {
  background: linear-gradient(180deg, #1a1028 0%, #0d0816 100%);
  border: 2px solid var(--lane-border);
  border-radius: 12px;
}

.lanes {
  position: absolute;
  inset: 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  pointer-events: none;
}

.lane {
  border-right: 1px solid var(--lane-border);
  background: rgba(0, 0, 0, 0.15);
}

.lane:last-child { border-right: none; }

.receptor-row {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 14%;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  align-items: flex-end;
  justify-items: center;
  pointer-events: none;
  z-index: 2;
}

/* —— Classic DDR arrow sprites (CSS) —— */
.ddr-arrow {
  --arrow-size: 48px;
  position: relative;
  width: var(--arrow-size);
  height: var(--arrow-size);
  display: block;
  flex-shrink: 0;
}

.ddr-arrow--sm {
  --arrow-size: 30px;
}

.ddr-arrow-frame {
  position: absolute;
  inset: 4%;
  background: linear-gradient(145deg, var(--ddr-frame-top) 0%, var(--ddr-frame-mid) 45%, var(--ddr-frame-bot) 100%);
  border: 2px solid var(--ddr-frame-border);
  border-radius: 4px;
  transform: rotate(45deg);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.12),
    inset 0 -4px 10px rgba(0, 0, 0, 0.55),
    0 3px 8px rgba(0, 0, 0, 0.45);
}

.ddr-arrow-glyph {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 52%;
  height: 52%;
  transform: translate(-50%, -50%);
  clip-path: polygon(50% 6%, 92% 52%, 68% 52%, 68% 94%, 32% 94%, 32% 52%, 8% 52%);
  filter: drop-shadow(0 1px 2px rgba(0, 0, 0, 0.5));
}

.ddr-arrow--up .ddr-arrow-glyph {
  background: linear-gradient(180deg, var(--ddr-blue-hi) 0%, var(--ddr-blue) 55%, #0d47a1 100%);
}

.ddr-arrow--down .ddr-arrow-glyph {
  transform: translate(-50%, -50%) rotate(180deg);
  background: linear-gradient(180deg, var(--ddr-green-hi) 0%, var(--ddr-green) 55%, #1b5e20 100%);
}

.ddr-arrow--left .ddr-arrow-glyph {
  transform: translate(-50%, -50%) rotate(-90deg);
  background: linear-gradient(180deg, var(--ddr-red-hi) 0%, var(--ddr-red) 55%, #b71c1c 100%);
}

.ddr-arrow--right .ddr-arrow-glyph {
  transform: translate(-50%, -50%) rotate(90deg);
  background: linear-gradient(180deg, var(--ddr-red-hi) 0%, var(--ddr-red) 55%, #b71c1c 100%);
}

.receptor {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 4px 0 2px;
  opacity: 0.5;
  transition: opacity 0.08s, transform 0.06s, filter 0.08s;
}

.receptor .ddr-arrow {
  --arrow-size: var(--receptor-h, 48px);
}

.receptor.pressed {
  opacity: 1;
  transform: scale(1.06);
  filter: drop-shadow(0 0 14px var(--arrow-glow, var(--ddr-blue-glow)));
}

.receptor.lane-left.pressed,
.receptor.lane-right.pressed {
  --arrow-glow: var(--ddr-red-glow);
}

.receptor.lane-up.pressed {
  --arrow-glow: var(--ddr-blue-glow);
}

.receptor.lane-down.pressed {
  --arrow-glow: var(--ddr-green-glow);
}

.receptor.hit {
  opacity: 1;
  transform: scale(1.1);
  filter: drop-shadow(0 0 18px var(--arrow-glow, var(--ddr-blue-glow)));
}

.receptor.hit.lane-left,
.receptor.hit.lane-right {
  --arrow-glow: var(--ddr-red-glow);
}

.receptor.hit.lane-up {
  --arrow-glow: var(--ddr-blue-glow);
}

.receptor.hit.lane-down {
  --arrow-glow: var(--ddr-green-glow);
}

.notes-layer {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 3;
}

.note {
  position: absolute;
  width: calc(25% - 12px);
  height: var(--note-h, 58px);
  margin-left: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: none;
  will-change: transform;
}

.note .ddr-arrow {
  --arrow-size: calc(var(--note-h, 58px) * 0.88);
  filter: drop-shadow(0 2px 6px rgba(0, 0, 0, 0.55));
}

.note.missed {
  opacity: 0.4;
  filter: grayscale(0.85) brightness(0.7);
}

.judge-popup {
  position: absolute;
  left: 50%;
  bottom: 27%;
  transform: translateX(-50%);
  font-size: clamp(1.1rem, 3.5vw, 1.5rem);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  opacity: 0;
  transition: opacity 0.15s;
  pointer-events: none;
  z-index: 5;
  text-shadow: 0 2px 12px rgba(0, 0, 0, 0.8);
}

.judge-popup.show { opacity: 1; }
.judge-popup.perfect { color: var(--perfect); }
.judge-popup.great { color: var(--great); }
.judge-popup.good { color: var(--good); }
.judge-popup.ok { color: var(--ok); }
.judge-popup.miss { color: var(--miss); }

.overlay {
  position: fixed;
  inset: 0;
  background: rgba(8, 4, 14, 0.88);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 20;
}

.overlay.hidden { display: none; }

/** Finished run — keep stage + HUD visible; compact panel at bottom. */
.overlay.overlay-results {
  background: transparent;
  pointer-events: none;
  align-items: flex-end;
  justify-content: center;
  padding: 0 0.75rem 0.75rem;
}

.overlay.overlay-results .overlay-card {
  pointer-events: auto;
  width: 100%;
  max-width: 36rem;
  padding: 1.15rem 1.35rem;
  box-shadow: 0 8px 28px rgba(0, 0, 0, 0.55);
  border-color: var(--receptor);
}

.overlay-card {
  text-align: center;
  padding: 2rem;
  max-width: 26rem;
  background: #1a1228;
  border: 1px solid var(--lane-border);
  border-radius: 12px;
}

.overlay-card h2 { margin: 0 0 0.75rem; }

.overlay-card p {
  margin: 0 0 1rem;
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.45;
}

.speed-pick {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.5rem;
  margin-bottom: 1.25rem;
  text-align: left;
}

.speed-option {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.55rem 0.65rem;
  border: 2px solid var(--lane-border);
  border-radius: 8px;
  font-size: 0.85rem;
  transition: border-color 0.12s, background 0.12s;
}

.speed-option .speed-arrow {
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 2.25rem;
}

.speed-option.selected {
  border-color: var(--receptor);
  background: rgba(255, 77, 157, 0.12);
}

button.primary {
  font: inherit;
  padding: 0.6rem 1.5rem;
  border: none;
  border-radius: 8px;
  background: var(--receptor);
  color: #fff;
  cursor: pointer;
  font-weight: 600;
}

button.primary:hover { filter: brightness(1.1); }

.game-shell .countdown-sub {
  color: var(--receptor);
}

.game-shell .countdown-num {
  text-shadow: 0 0 40px rgba(255, 77, 157, 0.6);
}

.game-shell .countdown-banner.speed-bump .countdown-num {
  color: var(--good);
  text-shadow: 0 0 40px rgba(255, 213, 79, 0.5);
}

.game-shell .hint {
  color: var(--muted);
}

.game-shell .hint strong {
  color: var(--text);
}