:root {
  --bg-a: #080b18;
  --bg-b: #15123a;
  --bg-c: #26104c;
  --ink: #f7fbff;
  --muted: #9fb0d4;
  --panel: rgba(6, 8, 22, .84);
  --line: rgba(255, 255, 255, .16);
  --hot: #ff357f;
  --cyan: #33e8ff;
  --green: #7dff9f;
  --yellow: #ffd95a;
  --shadow: 0 18px 70px rgba(0, 0, 0, .45);
}

* { box-sizing: border-box; }

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

body {
  color: var(--ink);
  font-family: "Trebuchet MS", system-ui, sans-serif;
  background:
    radial-gradient(circle at 18% 14%, color-mix(in srgb, var(--hot), transparent 72%), transparent 30rem),
    radial-gradient(circle at 82% 20%, color-mix(in srgb, var(--cyan), transparent 72%), transparent 28rem),
    linear-gradient(145deg, var(--bg-a), var(--bg-b) 48%, var(--bg-c));
  overflow-x: hidden;
}

body::before,
body::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
}

body::before {
  background:
    linear-gradient(rgba(255, 255, 255, .035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .028) 1px, transparent 1px);
  background-size: 28px 28px;
  mask-image: linear-gradient(to bottom, transparent, #000 15%, #000 80%, transparent);
}

body::after {
  background: repeating-linear-gradient(to bottom, rgba(255,255,255,.04), rgba(255,255,255,.04) 1px, transparent 1px, transparent 4px);
  mix-blend-mode: soft-light;
  opacity: .45;
}

body[data-phase="1"] { --bg-a: #07111f; --bg-b: #0c2850; --bg-c: #24124f; --hot: #32e8ff; --cyan: #8fff7f; }
body[data-phase="2"] { --bg-a: #15081a; --bg-b: #33164e; --bg-c: #122b4c; --hot: #ff357f; --cyan: #35d9ff; }
body[data-phase="3"] { --bg-a: #06140d; --bg-b: #0e3525; --bg-c: #08222c; --hot: #7dff9f; --cyan: #faff70; }
body[data-phase="4"] { --bg-a: #070a22; --bg-b: #102567; --bg-c: #2b104f; --hot: #b08cff; --cyan: #4ce7ff; }
body[data-phase="5"] { --bg-a: #120d0a; --bg-b: #3c2212; --bg-c: #341432; --hot: #ff9f43; --cyan: #ffdd66; }
body[data-phase="6"] { --bg-a: #110b12; --bg-b: #2f133d; --bg-c: #4d1225; --hot: #ff5370; --cyan: #ffcc5c; }
body[data-phase="7"] { --bg-a: #06131f; --bg-b: #143d5a; --bg-c: #0d233e; --hot: #b8f3ff; --cyan: #4dbdff; }
body[data-phase="8"] { --bg-a: #160606; --bg-b: #3e0e14; --bg-c: #441f07; --hot: #ff4f33; --cyan: #ffd166; }
body[data-phase="9"] { --bg-a: #030711; --bg-b: #11183a; --bg-c: #000; --hot: #d0d8ff; --cyan: #76ffef; }
body[data-phase="10"] { --bg-a: #100018; --bg-b: #390b52; --bg-c: #061b37; --hot: #ffec6e; --cyan: #ff4fd8; }

.home-link {
  position: fixed;
  top: 1rem;
  left: 1rem;
  z-index: 20;
  color: var(--ink);
  text-decoration: none;
  border: 1px solid var(--line);
  background: rgba(0, 0, 0, .38);
  padding: .55rem .75rem;
  border-radius: 6px;
  backdrop-filter: blur(10px);
}

.shell {
  width: min(1160px, calc(100vw - 2rem));
  min-height: 100vh;
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(320px, 520px) minmax(280px, 360px);
  gap: 1rem;
  align-items: center;
  padding: 4.5rem 0 5rem;
}

.game-card,
.panel {
  position: relative;
  z-index: 1;
  border: 1px solid var(--line);
  background: var(--panel);
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px);
}

.game-card {
  border-radius: 8px;
  padding: .8rem;
}

.marquee {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  min-height: 3rem;
  margin-bottom: .8rem;
  padding: .7rem .9rem;
  border: 1px solid var(--line);
  background: linear-gradient(90deg, rgba(255,255,255,.08), rgba(255,255,255,.02));
  text-transform: uppercase;
  letter-spacing: .08em;
}

.marquee span {
  color: var(--yellow);
  font-size: clamp(1.2rem, 3vw, 2.2rem);
  font-weight: 900;
  text-shadow: 0 0 12px color-mix(in srgb, var(--yellow), transparent 40%);
}

.marquee small {
  color: var(--cyan);
  font-weight: 700;
  text-align: right;
}

.playfield-wrap {
  position: relative;
  width: min(100%, 420px);
  margin: 0 auto;
  aspect-ratio: 1 / 2;
}

#board {
  display: block;
  width: 100%;
  height: 100%;
  border: 2px solid rgba(255,255,255,.32);
  background: #050712;
  box-shadow: inset 0 0 28px rgba(0,0,0,.75), 0 0 32px color-mix(in srgb, var(--cyan), transparent 72%);
  image-rendering: pixelated;
}

.overlay {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  padding: 1rem;
  background: rgba(0, 0, 0, .58);
}

.overlay.hidden {
  display: none;
}

.overlay-panel {
  width: min(92%, 320px);
  border: 1px solid rgba(255,255,255,.2);
  background: rgba(5, 6, 18, .92);
  padding: 1.1rem;
  border-radius: 8px;
  text-align: center;
  box-shadow: 0 18px 55px rgba(0,0,0,.55);
}

.overline {
  margin: 0 0 .35rem;
  color: var(--cyan);
  text-transform: uppercase;
  font-size: .75rem;
  letter-spacing: .14em;
}

.overlay-panel h1 {
  margin: 0;
  color: var(--yellow);
  font-size: 2rem;
}

.overlay-panel p {
  color: var(--muted);
}

.overlay-panel button,
.score-entry button {
  border: 0;
  border-radius: 6px;
  background: linear-gradient(90deg, var(--hot), var(--cyan));
  color: #050712;
  cursor: pointer;
  font-weight: 900;
  padding: .8rem 1rem;
  text-transform: uppercase;
}

.score-entry {
  display: grid;
  gap: .55rem;
  margin: .85rem 0;
}

.score-entry.hidden {
  display: none;
}

.score-entry label {
  color: var(--ink);
  font-weight: 700;
}

.score-entry input {
  width: 6rem;
  margin: 0 auto;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #0b1022;
  color: var(--ink);
  padding: .65rem;
  text-align: center;
  text-transform: uppercase;
  font: 900 1.2rem "Courier New", monospace;
}

.panel {
  border-radius: 8px;
  padding: 1rem;
}

.meter-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: .65rem;
}

.meter,
.next-box,
.scores-box,
.controls {
  border: 1px solid var(--line);
  background: rgba(255,255,255,.045);
  border-radius: 6px;
}

.meter {
  min-height: 76px;
  padding: .7rem;
}

.meter span,
.next-box h2,
.scores-box h2,
.controls h2 {
  display: block;
  margin: 0 0 .35rem;
  color: var(--muted);
  font-size: .78rem;
  text-transform: uppercase;
  letter-spacing: .09em;
}

.meter strong {
  color: var(--ink);
  font-size: 1.55rem;
}

.next-box,
.scores-box,
.controls {
  margin-top: .75rem;
  padding: .85rem;
}

#next {
  display: block;
  width: 120px;
  height: 120px;
  margin: .35rem auto 0;
  border: 1px solid var(--line);
  background: rgba(0,0,0,.25);
}

.score-list {
  margin: 0;
  padding-left: 1.4rem;
  display: grid;
  gap: .25rem;
}

.score-list li {
  color: var(--ink);
  font-family: "Courier New", monospace;
}

.score-list span {
  color: var(--cyan);
}

.controls p {
  margin: .38rem 0;
  color: var(--muted);
}

.controls b {
  color: var(--ink);
}

.touch-controls {
  position: fixed;
  left: 50%;
  bottom: .75rem;
  z-index: 15;
  width: min(96vw, 560px);
  transform: translateX(-50%);
  display: none;
  grid-template-columns: repeat(5, 1fr);
  gap: .4rem;
}

.touch-controls button {
  min-height: 46px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: rgba(0, 0, 0, .58);
  color: var(--ink);
  font-weight: 900;
  backdrop-filter: blur(10px);
}

@media (max-width: 860px) {
  .shell {
    grid-template-columns: 1fr;
    align-items: start;
    padding-top: 4rem;
  }

  .panel {
    margin-bottom: 4.4rem;
  }

  .touch-controls {
    display: grid;
  }
}