:root {
  --bg: #0c1018;
  --panel: #141c28;
  --ink: #e8eef6;
  --muted: #8a97a8;
  --gold: #c9a227;
  --gold-hot: #e8c547;
  --danger: #e05555;
  --cyan: #5ec8e8;
}

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

html, body {
  height: 100%;
  background: var(--bg);
  color: var(--ink);
  font-family: "IBM Plex Sans", system-ui, sans-serif;
  overflow: hidden;
}

#app {
  position: relative;
  width: 100%;
  height: 100%;
  background:
    radial-gradient(ellipse 70% 50% at 50% 0%, rgba(201, 162, 39, 0.08), transparent 55%),
    radial-gradient(ellipse 40% 40% at 90% 90%, rgba(94, 200, 232, 0.06), transparent 50%),
    #0a0e14;
}

#game {
  display: block;
  width: 100%;
  height: 100%;
  cursor: crosshair;
  touch-action: none;
}

#hud {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  padding: 14px 16px;
  pointer-events: none;
  z-index: 5;
  background: linear-gradient(180deg, rgba(8, 12, 18, 0.75), transparent);
}

.chip {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 8px 12px;
  background: rgba(20, 28, 40, 0.82);
  border: 1px solid rgba(201, 162, 39, 0.28);
  backdrop-filter: blur(8px);
  min-width: 88px;
}

.chip .k {
  font-size: 0.65rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

.chip strong {
  font-size: 1rem;
  font-weight: 700;
  color: var(--gold-hot);
}

.chip.noise {
  min-width: 120px;
}

.chip .bar {
  height: 6px;
  margin-top: 4px;
  background: rgba(255, 255, 255, 0.08);
  overflow: hidden;
}

.chip .bar i {
  display: block;
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--cyan), var(--gold), var(--danger));
  transition: width 0.08s linear;
}

.mute {
  pointer-events: auto;
  margin-left: auto;
  border: 1px solid rgba(255, 255, 255, 0.15);
  background: rgba(20, 28, 40, 0.85);
  color: var(--ink);
  padding: 8px 12px;
  font: inherit;
  font-size: 0.85rem;
  cursor: pointer;
}

.mute:hover { border-color: var(--gold); color: var(--gold-hot); }

.pad {
  display: none;
  position: absolute;
  bottom: max(28px, env(safe-area-inset-bottom));
  width: 118px;
  height: 118px;
  border-radius: 50%;
  border: 2px solid rgba(201, 162, 39, 0.35);
  background: rgba(12, 16, 24, 0.4);
  pointer-events: none;
  z-index: 4;
}

.pad::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 46px;
  height: 46px;
  margin: -23px 0 0 -23px;
  border-radius: 50%;
  background: rgba(201, 162, 39, 0.4);
  border: 1px solid rgba(232, 197, 71, 0.5);
  transform: translate(var(--dx, 0px), var(--dy, 0px));
}

.pad-move { left: max(18px, env(safe-area-inset-left)); }

#toast {
  position: absolute;
  left: 50%;
  bottom: 18%;
  transform: translateX(-50%);
  z-index: 6;
  padding: 10px 18px;
  background: rgba(12, 16, 24, 0.9);
  border: 1px solid rgba(201, 162, 39, 0.45);
  color: var(--gold-hot);
  font-size: 0.95rem;
  letter-spacing: 0.02em;
  pointer-events: none;
  animation: toastIn 0.25s ease;
}

@keyframes toastIn {
  from { opacity: 0; transform: translate(-50%, 8px); }
  to { opacity: 1; transform: translate(-50%, 0); }
}

.overlay {
  position: absolute;
  inset: 0;
  z-index: 10;
  display: grid;
  place-items: center;
  padding: 24px;
  background:
    radial-gradient(ellipse 60% 50% at 50% 40%, rgba(20, 28, 40, 0.92), rgba(8, 12, 18, 0.96));
}

.overlay.hidden { display: none; }

.panel {
  width: min(440px, 100%);
  padding: clamp(1.6rem, 4vw, 2.4rem);
  background:
    linear-gradient(165deg, rgba(201, 162, 39, 0.08), transparent 50%),
    var(--panel);
  border: 1px solid rgba(201, 162, 39, 0.35);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.55);
}

.brand {
  font-size: 0.72rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 0.6rem;
}

.panel h1 {
  font-family: "Libre Baskerville", Georgia, serif;
  font-size: clamp(2.2rem, 6vw, 2.8rem);
  font-weight: 700;
  color: #fff;
  margin-bottom: 0.35rem;
}

.panel h2 {
  font-family: "Libre Baskerville", Georgia, serif;
  font-size: 1.8rem;
  margin-bottom: 0.5rem;
}

.tag {
  color: var(--muted);
  line-height: 1.45;
  margin-bottom: 1.2rem;
}

.rules {
  list-style: none;
  text-align: left;
  margin-bottom: 1.1rem;
  display: grid;
  gap: 0.55rem;
}

.rules li {
  font-size: 0.92rem;
  color: #c5ced8;
  padding-left: 1rem;
  position: relative;
  line-height: 1.4;
}

.rules li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 5px;
  height: 5px;
  background: var(--gold);
  border-radius: 50%;
}

.rules strong { color: var(--gold-hot); font-weight: 600; }

.hint {
  font-size: 0.82rem;
  color: var(--muted);
  margin-bottom: 1.3rem;
}

.btn {
  display: inline-block;
  width: 100%;
  padding: 0.9rem 1.2rem;
  border: none;
  background: linear-gradient(180deg, var(--gold-hot), var(--gold));
  color: #1a1408;
  font: inherit;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  cursor: pointer;
  transition: filter 0.2s, transform 0.15s;
}

.btn:hover { filter: brightness(1.08); transform: translateY(-1px); }

.back {
  margin-top: 1.1rem;
  font-size: 0.85rem;
}

.back a {
  color: var(--muted);
  text-decoration: none;
}

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

@media (max-width: 700px) {
  #hud { padding: 10px; gap: 6px; }
  .chip { min-width: 72px; padding: 6px 8px; }
  .chip strong { font-size: 0.9rem; }
  .pad { display: block; }
  .panel { max-height: min(88vh, 640px); overflow: auto; }
}

@media (pointer: coarse) {
  .pad { display: block; }
}