:root {
  color-scheme: dark;
  --bg: #081022;
  --bg-2: #121a3a;
  --card: rgba(13, 23, 50, 0.78);
  --card-strong: rgba(18, 31, 66, 0.96);
  --text: #f5fbff;
  --muted: #9fb3d8;
  --accent: #55f1ff;
  --accent-2: #ffd166;
  --danger: #ff5c7c;
  --success: #73f59a;
  --shadow: 0 24px 70px rgba(0, 0, 0, 0.45);
}

* {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 18% 12%, rgba(85, 241, 255, 0.22), transparent 30rem),
    radial-gradient(circle at 85% 8%, rgba(255, 209, 102, 0.18), transparent 26rem),
    linear-gradient(145deg, var(--bg), #080a18 58%, var(--bg-2));
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    radial-gradient(circle, rgba(255, 255, 255, 0.42) 0 1px, transparent 1.2px),
    radial-gradient(circle, rgba(85, 241, 255, 0.28) 0 1px, transparent 1.4px);
  background-position: 0 0, 34px 57px;
  background-size: 120px 120px, 170px 170px;
  mask-image: linear-gradient(to bottom, black, transparent 78%);
}

button {
  border: 0;
  border-radius: 999px;
  padding: 0.82rem 1.12rem;
  font: inherit;
  font-weight: 800;
  letter-spacing: 0.01em;
  color: #081022;
  background: linear-gradient(135deg, var(--accent), #9af7ff);
  box-shadow: 0 12px 24px rgba(85, 241, 255, 0.22);
  cursor: pointer;
  transition: transform 160ms ease, filter 160ms ease, opacity 160ms ease;
}

button:hover:not(:disabled),
button:focus-visible:not(:disabled) {
  transform: translateY(-2px);
  filter: brightness(1.08);
}

button:active:not(:disabled) {
  transform: translateY(0);
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.48;
  box-shadow: none;
}

kbd {
  display: inline-block;
  min-width: 1.6em;
  padding: 0.08rem 0.42rem;
  border: 1px solid rgba(255, 255, 255, 0.24);
  border-bottom-width: 3px;
  border-radius: 0.38rem;
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
  font-size: 0.82em;
  line-height: 1.35;
  text-align: center;
}

.app-shell {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(300px, 520px) minmax(260px, 360px);
  gap: clamp(1rem, 4vw, 2.4rem);
  width: min(100%, 1010px);
  margin: 0 auto;
  padding: clamp(1rem, 3vw, 2rem);
}

.game-column {
  display: grid;
  gap: 1rem;
}

.title-card,
.panel-card,
.game-card {
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 1.55rem;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.09), rgba(255, 255, 255, 0.035)), var(--card);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.title-card {
  padding: clamp(1rem, 3vw, 1.35rem);
}

.eyebrow {
  margin: 0 0 0.25rem;
  color: var(--accent);
  font-size: 0.72rem;
  font-weight: 900;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

h1,
h2,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 0.25rem;
  font-size: clamp(2.2rem, 7vw, 4.2rem);
  line-height: 0.92;
  letter-spacing: -0.07em;
  text-shadow: 0 0 34px rgba(85, 241, 255, 0.28);
}

h2 {
  margin-bottom: 0.6rem;
  font-size: 1.15rem;
}

.title-card p:last-child,
.how-to-card li,
.overlay-card p {
  color: var(--muted);
}

.game-card {
  overflow: hidden;
}

.hud {
  display: grid;
  grid-template-columns: 1fr 1fr auto;
  gap: 0.6rem;
  padding: 0.85rem;
  background: rgba(6, 13, 31, 0.52);
}

.hud-chip {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 3.2rem;
  gap: 0.65rem;
  padding: 0.62rem 0.85rem;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 1rem;
  background: rgba(255, 255, 255, 0.08);
}

.hud-chip span {
  color: var(--muted);
  font-size: 0.76rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.hud-chip strong {
  font-size: 1.45rem;
  line-height: 1;
}

.hud-chip.state {
  justify-content: center;
  min-width: 6.6rem;
  color: #071020;
  background: linear-gradient(135deg, var(--accent-2), #ffe9a9);
  font-weight: 900;
}

.canvas-wrap {
  position: relative;
  width: 100%;
  aspect-ratio: 420 / 640;
  min-height: 460px;
  background: #091326;
}

canvas {
  display: block;
  width: 100%;
  height: 100%;
  outline: none;
  touch-action: manipulation;
  user-select: none;
}

canvas:focus-visible {
  box-shadow: inset 0 0 0 4px rgba(85, 241, 255, 0.8);
}

.overlay {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  padding: 1rem;
  pointer-events: none;
  transition: opacity 180ms ease, transform 180ms ease;
}

.overlay.hidden {
  opacity: 0;
  transform: scale(1.03);
}

.overlay-card {
  width: min(88%, 330px);
  padding: 1.1rem;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 1.2rem;
  background: rgba(6, 12, 27, 0.78);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.42);
  text-align: center;
  backdrop-filter: blur(16px);
}

.overlay-card h2 {
  margin-bottom: 0.4rem;
  font-size: clamp(1.5rem, 5vw, 2.2rem);
}

.overlay-card p {
  margin-bottom: 0.6rem;
}

.overlay-card .mini-help {
  margin-bottom: 0;
  font-size: 0.9rem;
}

.controls {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.65rem;
  padding: 0.85rem;
  background: rgba(6, 13, 31, 0.64);
}

#pauseButton {
  background: linear-gradient(135deg, var(--accent-2), #ffe9a9);
  box-shadow: 0 12px 24px rgba(255, 209, 102, 0.18);
}

#muteButton {
  color: var(--text);
  background: rgba(255, 255, 255, 0.12);
  box-shadow: none;
}

.side-panel {
  display: grid;
  align-content: start;
  gap: 1rem;
}

.panel-card {
  padding: 1rem;
}

.panel-title-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.8rem;
}

.ghost-button {
  padding: 0.52rem 0.74rem;
  color: var(--text);
  background: rgba(255, 255, 255, 0.1);
  box-shadow: none;
}

.leaderboard {
  display: grid;
  gap: 0.45rem;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: rank;
}

.leaderboard li {
  counter-increment: rank;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 0.65rem;
  padding: 0.6rem 0.7rem;
  border-radius: 0.85rem;
  background: rgba(255, 255, 255, 0.07);
}

.leaderboard li::before {
  content: counter(rank);
  display: grid;
  place-items: center;
  width: 1.75rem;
  height: 1.75rem;
  border-radius: 50%;
  color: #091326;
  background: var(--accent-2);
  font-weight: 900;
}

.leaderboard .pilot {
  min-width: 0;
  overflow: hidden;
  font-weight: 850;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.leaderboard .points {
  color: var(--accent);
  font-weight: 950;
}

.leaderboard li.empty-board {
  display: block;
  padding: 0.9rem;
  border: 1px dashed rgba(255, 255, 255, 0.18);
  border-radius: 0.9rem;
  color: var(--muted);
  text-align: center;
}

.leaderboard li.empty-board::before {
  content: none;
}

.how-to-card ul {
  display: grid;
  gap: 0.55rem;
  margin: 0;
  padding-left: 1.1rem;
}

@media (max-width: 860px) {
  .app-shell {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 620px) {
  .app-shell {
    padding: 0.7rem;
  }

  .hud {
    grid-template-columns: 1fr 1fr;
  }

  .hud-chip.state {
    grid-column: 1 / -1;
  }

  .controls,
  .side-panel {
    grid-template-columns: 1fr;
  }

  .canvas-wrap {
    min-height: 0;
  }
}