@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@400;600;700;800&family=JetBrains+Mono:wght@500;600&display=swap');

:root {
  --bg: #050508;
  --bg2: #0c0c12;
  --surface: rgba(18, 18, 28, 0.65);
  --text: #f0f0f5;
  --muted: #7a7a8c;
  --accent: #5eb0ff;
  --accent-dim: rgba(94, 176, 255, 0.35);
  --echo: rgba(94, 176, 255, 0.42);
  --danger: #ff5c7a;
  --gold: #e8c56c;
  --glass-edge: rgba(255, 255, 255, 0.08);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  font-family: 'Outfit', system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  padding: 1.25rem 1rem 2rem;
  position: relative;
  overflow-x: hidden;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  background:
    radial-gradient(ellipse 120% 80% at 50% -30%, rgba(94, 176, 255, 0.14), transparent 55%),
    radial-gradient(ellipse 80% 50% at 100% 50%, rgba(120, 90, 200, 0.06), transparent 45%),
    radial-gradient(ellipse 60% 40% at 0% 80%, rgba(60, 140, 255, 0.05), transparent 50%),
    linear-gradient(180deg, var(--bg2) 0%, var(--bg) 45%, #030305 100%);
  pointer-events: none;
  z-index: -2;
}

body::after {
  content: '';
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.04'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: -1;
  opacity: 0.5;
}

body.ch2 {
  --accent: #e8c56c;
  --accent-dim: rgba(232, 197, 108, 0.35);
  --echo: rgba(232, 197, 108, 0.4);
}
body.ch3 {
  --accent: #4ee0a8;
  --accent-dim: rgba(78, 224, 168, 0.35);
  --echo: rgba(78, 224, 168, 0.4);
}
body.ch4 {
  --accent: #ff7b7b;
  --accent-dim: rgba(255, 123, 123, 0.35);
  --echo: rgba(255, 123, 123, 0.4);
}
body.ch5 {
  --accent: #b894ff;
  --accent-dim: rgba(184, 148, 255, 0.35);
  --echo: rgba(184, 148, 255, 0.4);
}
body.ch6 {
  --accent: #f5f5fa;
  --accent-dim: rgba(245, 245, 250, 0.25);
  --echo: rgba(245, 245, 250, 0.35);
}

.page {
  max-width: 940px;
  margin: 0 auto;
  position: relative;
}

.page::before {
  content: '';
  position: absolute;
  top: -8px;
  left: 50%;
  transform: translateX(-50%);
  width: min(520px, 90%);
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent-dim), transparent);
  opacity: 0.7;
}

.top {
  text-align: center;
  margin-bottom: 1rem;
  padding-top: 0.25rem;
}

.top h1 {
  font-size: clamp(1.85rem, 5vw, 2.35rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  background: linear-gradient(135deg, #fff 0%, var(--accent) 55%, #8899aa 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  filter: drop-shadow(0 0 28px var(--accent-dim));
}

.tagline {
  font-size: 0.88rem;
  color: var(--muted);
  margin-top: 0.35rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-weight: 600;
}

.hud {
  display: flex;
  flex-wrap: wrap;
  align-items: stretch;
  justify-content: center;
  gap: 0.75rem;
  margin-bottom: 1rem;
  font-size: 0.88rem;
}

.hud-cluster {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.45rem 0.85rem;
  background: var(--surface);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--glass-edge);
  border-radius: 12px;
  box-shadow:
    0 4px 24px rgba(0, 0, 0, 0.35),
    inset 0 1px 0 rgba(255, 255, 255, 0.05);
}

.hud-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.58rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--muted);
}

.hud-cap {
  color: var(--muted);
  font-size: 0.82rem;
  font-family: 'JetBrains Mono', monospace;
}

.sprite {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  border: 2px solid var(--accent);
  display: inline-block;
  flex-shrink: 0;
}

.sprite.tick {
  box-shadow:
    0 0 10px var(--accent),
    inset 0 0 6px rgba(255, 255, 255, 0.35);
  animation: tick-pulse 2s ease-in-out infinite;
}

@keyframes tick-pulse {
  0%,
  100% {
    box-shadow: 0 0 8px var(--accent);
  }
  50% {
    box-shadow: 0 0 16px var(--accent), 0 0 24px var(--accent-dim);
  }
}

.sprite.tock {
  border-style: dashed;
  opacity: 0.9;
  animation: tock-spin 12s linear infinite;
}

@keyframes tock-spin {
  to {
    transform: rotate(360deg);
  }
}

.hud-cluster strong {
  font-family: 'JetBrains Mono', monospace;
  font-variant-numeric: tabular-nums;
  color: var(--accent);
  font-size: 1.05rem;
}

.paradox-meter {
  min-width: 132px;
}

.paradox-bar {
  width: 104px;
  height: 9px;
  background: rgba(0, 0, 0, 0.45);
  border-radius: 6px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.5);
}

#paradox-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, #ff4466, var(--danger), #ffb0c0);
  transition: width 0.08s linear;
  box-shadow: 0 0 12px rgba(255, 80, 100, 0.5);
}

.canvas-wrap {
  position: relative;
  border-radius: 16px;
  overflow: hidden;
  box-shadow:
    0 0 0 1px rgba(255, 255, 255, 0.07),
    0 0 60px rgba(0, 0, 0, 0.55),
    0 24px 64px rgba(0, 0, 0, 0.45),
    inset 0 0 80px rgba(94, 176, 255, 0.03);
}

.canvas-wrap::after {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
  border-radius: 16px;
  box-shadow: inset 0 0 60px rgba(0, 0, 0, 0.18);
  z-index: 3;
}

#game {
  display: block;
  width: 100%;
  height: auto;
  vertical-align: middle;
  cursor: crosshair;
  outline: none;
}

#game:focus {
  box-shadow: 0 0 0 2px var(--accent-dim);
}

.rewind-overlay {
  pointer-events: none;
  position: absolute;
  inset: 0;
  z-index: 4;
  background: rgba(200, 220, 255, 0);
  opacity: 0;
  mix-blend-mode: screen;
}

.rewind-overlay.active {
  animation: rewind-burst 0.65s ease-out forwards;
}

@keyframes rewind-burst {
  0% {
    opacity: 0;
    background: rgba(255, 255, 255, 0);
    backdrop-filter: blur(0);
  }
  15% {
    opacity: 1;
    background: rgba(220, 235, 255, 0.2);
    backdrop-filter: blur(2px);
  }
  100% {
    opacity: 0;
    background: rgba(255, 255, 255, 0);
    backdrop-filter: blur(0);
  }
}

.bubble-host {
  min-height: 2.25rem;
  text-align: center;
  margin-top: 0.65rem;
  font-size: 0.82rem;
  color: var(--muted);
}

.bubble-host .line {
  font-style: italic;
  padding: 0.5rem 1rem;
  display: inline-block;
  max-width: 100%;
  background: rgba(12, 12, 20, 0.55);
  border: 1px solid var(--glass-edge);
  border-radius: 999px;
  backdrop-filter: blur(8px);
  color: #c8c8d8;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
}

.controls {
  margin-top: 1rem;
  text-align: center;
  font-size: 0.72rem;
  color: var(--muted);
  line-height: 1.75;
}

.controls strong {
  color: var(--accent);
  font-weight: 600;
}

kbd {
  display: inline-block;
  padding: 0.15rem 0.4rem;
  margin: 0 0.06rem;
  background: rgba(20, 20, 32, 0.9);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 6px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.65rem;
  color: #ccc;
  box-shadow: 0 2px 0 rgba(0, 0, 0, 0.35);
}

.foot {
  text-align: center;
  margin-top: 1.25rem;
  font-size: 0.72rem;
  color: var(--muted);
  font-family: 'JetBrains Mono', monospace;
  letter-spacing: 0.06em;
}

@media (max-width: 840px) {
  #game {
    max-height: 56vh;
  }

  .hud {
    gap: 0.5rem;
  }

  .hud-cluster {
    padding: 0.4rem 0.65rem;
  }
}