:root {
  color-scheme: dark;
  --bg: #101114;
  --panel: #181b20;
  --panel-2: #20252c;
  --text: #f5f7fb;
  --muted: #aab2c0;
  --line: #353d49;
  --accent: #35d6a6;
  --accent-2: #f7c948;
  --bad: #ff5c77;
  --good: #53dd6c;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  background:
    radial-gradient(circle at 10% 10%, rgba(53, 214, 166, 0.14), transparent 28rem),
    linear-gradient(135deg, #101114 0%, #191b1f 48%, #131820 100%);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

button {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel-2);
  color: var(--text);
  cursor: pointer;
  font: inherit;
  font-weight: 700;
  min-height: 44px;
  padding: 0 18px;
}

button:hover:not(:disabled),
button:focus-visible:not(:disabled) {
  border-color: var(--accent);
  outline: none;
}

button:disabled {
  color: #707784;
  cursor: not-allowed;
}

input {
  background: #111419;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--text);
  font: inherit;
  min-height: 44px;
  padding: 0 12px;
}

input:focus {
  border-color: var(--accent);
  outline: none;
}

label {
  color: var(--muted);
  font-size: 0.74rem;
  font-weight: 800;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

#startButton {
  background: var(--accent);
  border-color: var(--accent);
  color: #07120f;
}

.game-shell {
  display: grid;
  min-height: 100vh;
  padding: 24px;
  place-items: center;
}

.stage {
  background: rgba(24, 27, 32, 0.92);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.32);
  display: grid;
  gap: 18px;
  max-width: 1120px;
  padding: 22px;
  width: min(100%, 1120px);
}

.top-bar,
.hud,
.controls,
.feedback-row {
  align-items: center;
  display: flex;
  gap: 14px;
}

.top-bar {
  justify-content: space-between;
}

.eyebrow,
.message {
  color: var(--muted);
  margin: 0;
}

.eyebrow {
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1 {
  font-size: clamp(1.6rem, 3vw, 3rem);
  letter-spacing: 0;
  line-height: 1.04;
  margin: 5px 0 0;
}

.level-pill {
  background: #0e2721;
  border: 1px solid rgba(53, 214, 166, 0.48);
  border-radius: 999px;
  color: #9ff2d7;
  flex: 0 0 auto;
  font-weight: 800;
  padding: 10px 14px;
}

.playfield {
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px) 0 0 / 9.09% 100%,
    linear-gradient(180deg, #111419, #171d24);
  border: 1px solid var(--line);
  border-radius: 8px;
  min-height: 310px;
  overflow: hidden;
  position: relative;
}

#beatCanvas {
  display: block;
  height: 100%;
  min-height: 310px;
  width: 100%;
}

.beat-orbit {
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 50%;
  display: grid;
  height: 144px;
  left: 50%;
  place-items: center;
  pointer-events: none;
  position: absolute;
  top: 50%;
  transform: translate(-50%, -50%);
  width: 144px;
}

.beat-core {
  background: var(--accent);
  border-radius: 50%;
  box-shadow: 0 0 28px rgba(53, 214, 166, 0.52);
  height: 42px;
  transition: transform 80ms ease, background-color 140ms ease, box-shadow 140ms ease;
  width: 42px;
}

.beat-core.pulse {
  transform: scale(1.58);
}

.beat-core.silent {
  background: var(--accent-2);
  box-shadow: 0 0 24px rgba(247, 201, 72, 0.38);
}

.hud {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.meter {
  background: var(--panel-2);
  border: 1px solid var(--line);
  border-radius: 8px;
  display: grid;
  gap: 4px;
  min-height: 74px;
  padding: 12px;
}

.meter span {
  color: var(--muted);
  font-size: 0.74rem;
  font-weight: 800;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.meter strong {
  font-size: clamp(1.28rem, 3vw, 2rem);
  line-height: 1;
}

.controls {
  flex-wrap: wrap;
}

.feedback-row {
  align-items: flex-start;
  display: grid;
  grid-template-columns: minmax(180px, 340px) 1fr;
}

.hit-strip {
  display: grid;
  gap: 5px;
  grid-template-columns: repeat(12, 1fr);
}

.hit-dot {
  aspect-ratio: 1;
  background: #303742;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 50%;
}


.hit-dot {
  position: relative;
}

.hit-number {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  font-weight: 900;
  color: #000;
  font-size: 16px;
  line-height: 1;
  pointer-events: none;
  z-index: 2;
  text-shadow: 0 0 1px rgba(255,255,255,0.6);
}

.hit-dot.good .hit-number,
.hit-dot.ok .hit-number,
.hit-dot.miss .hit-number {
  color: #000;
}

.hit-dot.good .hit-number {
  color: #07120f; /* dark on green */
}

.hit-dot.ok .hit-number {
  color: #1b1200; /* dark on yellow */
}

.hit-dot.miss .hit-number {
  color: #ffffff; /* white on red */
}
.hit-dot.good {
  background: var(--good);
}

.hit-dot.ok {
  background: var(--accent-2);
}

.hit-dot.miss {
  background: var(--bad);
}

.message {
  line-height: 1.45;
}

.leaderboard {
  background: #14181e;
  border: 1px solid var(--line);
  border-radius: 8px;
  display: grid;
  gap: 14px;
  padding: 16px;
}

.save-score {
  align-items: end;
  display: grid;
  gap: 14px;
  grid-template-columns: 1fr auto;
}

.save-score h2 {
  font-size: 1.25rem;
  letter-spacing: 0;
  line-height: 1.1;
  margin: 0 0 6px;
}

.score-form {
  align-items: end;
  display: grid;
  gap: 8px;
  grid-template-columns: minmax(150px, 220px) auto;
}

.score-form label {
  grid-column: 1 / -1;
}

.leaderboard-list {
  display: grid;
  gap: 6px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.leaderboard-item,
.leaderboard-empty,
.leaderboard-divider {
  align-items: center;
  background: var(--panel-2);
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--muted);
  display: grid;
  gap: 10px;
  min-height: 44px;
  padding: 8px 10px;
}

.leaderboard-item {
  grid-template-columns: 58px minmax(0, 1fr) 92px 76px 58px;
}

.leaderboard-item strong {
  color: var(--text);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.leaderboard-item span {
  white-space: nowrap;
}

.leaderboard-item .rank {
  color: var(--accent);
  font-weight: 900;
}

.leaderboard-item.current-player {
  border-color: rgba(53, 214, 166, 0.62);
  box-shadow: inset 0 0 0 1px rgba(53, 214, 166, 0.14);
}

.leaderboard-empty,
.leaderboard-divider {
  color: var(--muted);
}

@media (max-width: 720px) {
  .game-shell {
    padding: 12px;
  }

  .stage {
    padding: 14px;
  }

  .top-bar {
    align-items: flex-start;
    flex-direction: column;
  }

  .hud {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .feedback-row {
    grid-template-columns: 1fr;
  }

  .save-score,
  .score-form {
    grid-template-columns: 1fr;
  }

  .leaderboard-item {
    grid-template-columns: 50px minmax(0, 1fr) 76px;
  }

  .leaderboard-item span:nth-last-child(-n + 2) {
    display: none;
  }
}