:root {
  --bg: #050712;
  --panel: rgba(15, 22, 45, 0.86);
  --panel-strong: rgba(21, 31, 63, 0.96);
  --cyan: #4dfcff;
  --violet: #a45bff;
  --pink: #ff3df2;
  --gold: #ffd166;
  --green: #6dff9f;
  --danger: #ff4b6e;
  --text: #eaf7ff;
  --muted: #95a5c8;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(77, 252, 255, 0.18), transparent 32%),
    radial-gradient(circle at bottom right, rgba(255, 61, 242, 0.14), transparent 34%),
    linear-gradient(135deg, #040510, #080b1f 58%, #03040d);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 22px;
}

.game-shell { width: min(1040px, 100%); }

.hero {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: center;
  padding: 18px 20px;
  border: 1px solid rgba(77, 252, 255, 0.32);
  border-radius: 22px;
  background: var(--panel);
  box-shadow: 0 0 38px rgba(77, 252, 255, 0.1), inset 0 0 22px rgba(164, 91, 255, 0.06);
  backdrop-filter: blur(12px);
}

.eyebrow {
  margin: 0 0 4px;
  color: var(--cyan);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.75rem;
}

h1 {
  margin: 0;
  font-size: clamp(2rem, 5vw, 4rem);
  line-height: 0.95;
  text-shadow: 0 0 16px rgba(77, 252, 255, 0.8), 0 0 28px rgba(164, 91, 255, 0.45);
}

.subtitle { margin: 8px 0 0; color: var(--muted); }
.actions { display: flex; gap: 10px; flex-wrap: wrap; justify-content: flex-end; }

.neon-button {
  cursor: pointer;
  color: var(--text);
  background: linear-gradient(135deg, rgba(77, 252, 255, 0.18), rgba(164, 91, 255, 0.26));
  border: 1px solid rgba(77, 252, 255, 0.55);
  border-radius: 999px;
  padding: 10px 16px;
  font-weight: 800;
  box-shadow: 0 0 16px rgba(77, 252, 255, 0.25);
}

.neon-button:hover {
  transform: translateY(-1px);
  box-shadow: 0 0 22px rgba(255, 61, 242, 0.32);
}

.alt-button {
  border-color: rgba(255, 209, 102, 0.55);
  background: linear-gradient(135deg, rgba(255, 209, 102, 0.14), rgba(164, 91, 255, 0.22));
}

.alt-button:hover {
  box-shadow: 0 0 22px rgba(255, 209, 102, 0.28);
}

.audio-button {
  border-color: rgba(77, 252, 255, 0.52);
  background: linear-gradient(135deg, rgba(77, 252, 255, 0.13), rgba(255, 61, 242, 0.18));
}

.audio-button.muted {
  opacity: 0.72;
  border-color: rgba(149, 165, 200, 0.42);
  background: linear-gradient(135deg, rgba(149, 165, 200, 0.10), rgba(21, 31, 63, 0.32));
}

.hud {
  display: grid;
  grid-template-columns: repeat(6, 1fr) 1.5fr;
  gap: 12px;
  margin: 14px 0;
}

.hud-card {
  padding: 12px 14px;
  border-radius: 16px;
  border: 1px solid rgba(164, 91, 255, 0.28);
  background: var(--panel);
}

.hud-card span {
  display: block;
  color: var(--muted);
  font-size: 0.78rem;
  margin-bottom: 4px;
}

.hud-card strong { font-size: 1.22rem; color: var(--text); }
.world-card strong { color: var(--cyan); font-size: 1rem; }
.lives-card strong { color: var(--danger); letter-spacing: 0.12em; text-shadow: 0 0 10px rgba(255,75,110,0.55); }

.energy-card {
  display: grid;
  grid-template-columns: 1fr auto;
  grid-template-areas: "label label" "bar value";
  gap: 6px 10px;
  align-items: center;
}

.energy-card > span { grid-area: label; }
.energy-bar {
  grid-area: bar;
  height: 10px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.12);
  overflow: hidden;
}

#energyFill {
  height: 100%;
  width: 100%;
  background: linear-gradient(90deg, var(--green), var(--cyan));
  border-radius: inherit;
  box-shadow: 0 0 14px rgba(109, 255, 159, 0.6);
}
#energyText { grid-area: value; font-size: 1rem; }

.board-wrap {
  position: relative;
  border: 1px solid rgba(77, 252, 255, 0.35);
  border-radius: 24px;
  overflow: hidden;
  background: #040612;
  box-shadow: 0 18px 55px rgba(0, 0, 0, 0.35), 0 0 42px rgba(77, 252, 255, 0.12);
}

canvas { display: block; width: 100%; max-height: 70vh; image-rendering: pixelated; }

.message {
  position: absolute;
  inset: 0;
  display: grid;
  place-content: center;
  text-align: center;
  padding: 24px;
  background: rgba(3, 5, 15, 0.83);
  backdrop-filter: blur(5px);
}

.message-kicker {
  margin: 0 0 4px;
  color: var(--gold);
  text-transform: uppercase;
  letter-spacing: .14em;
  font-size: .78rem;
  font-weight: 800;
}

.message h2 {
  margin: 0 0 8px;
  font-size: clamp(2rem, 5vw, 4rem);
  text-shadow: 0 0 20px rgba(77, 252, 255, 0.6);
}

.message p { margin: 0 0 18px; color: var(--muted); max-width: 620px; }

.toast {
  position: absolute;
  top: 18px;
  left: 50%;
  transform: translateX(-50%);
  width: min(650px, calc(100% - 32px));
  padding: 14px 22px;
  border: 1px solid rgba(109, 255, 159, 0.78);
  border-radius: 20px;
  background: linear-gradient(90deg, rgba(2, 5, 16, 0.86), rgba(13, 35, 52, 0.88), rgba(42, 20, 62, 0.88), rgba(2, 5, 16, 0.86));
  box-shadow: 0 0 32px rgba(77, 252, 255, 0.32), inset 0 0 18px rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(5px);
  text-align: center;
  pointer-events: auto;
  cursor: pointer;
  user-select: none;
  z-index: 4;
  animation: toastPulse 1.2s ease-in-out infinite alternate;
}

.toast span {
  display: block;
  color: var(--gold);
  font-size: 0.78rem;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.2em;
}

.toast strong {
  display: block;
  margin-top: 2px;
  color: var(--green);
  font-size: clamp(1.05rem, 2.25vw, 1.45rem);
  text-shadow: 0 0 12px rgba(109, 255, 159, 0.66);
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.toast small {
  display: block;
  margin-top: 4px;
  color: rgba(234, 247, 255, 0.94);
  font-size: 0.94rem;
  line-height: 1.25;
}

@keyframes toastPulse {
  from { opacity: 0.76; transform: translateX(-50%) translateY(0); }
  to { opacity: 1; transform: translateX(-50%) translateY(2px); }
}


.toast.scroller {
  top: 43%;
  left: 100%;
  width: max-content;
  min-width: min(700px, calc(100% - 48px));
  max-width: none;
  padding: 24px 42px;
  min-height: 86px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  white-space: nowrap;
  border-width: 2px;
  border-color: rgba(255, 209, 102, 0.94);
  background: linear-gradient(90deg, rgba(3, 5, 14, 0.96), rgba(74, 44, 12, 0.95), rgba(8, 38, 54, 0.96), rgba(57, 21, 75, 0.95), rgba(3, 5, 14, 0.96));
  box-shadow: 0 0 42px rgba(255, 209, 102, 0.28), 0 0 36px rgba(77, 252, 255, 0.26), inset 0 0 26px rgba(255, 255, 255, 0.1);
  animation: marqueeSlide 6.4s linear forwards;
}

.toast.scroller span,
.toast.scroller strong,
.toast.scroller small {
  display: block;
  margin: 0;
  vertical-align: middle;
}

.toast.scroller strong {
  color: var(--gold);
  font-size: clamp(2rem, 4.8vw, 3.5rem);
  color: #fff1a8;
  text-shadow: 0 0 16px rgba(255, 209, 102, 0.85), 0 0 26px rgba(77, 252, 255, 0.45);
}

.toast.scroller small {
  color: rgba(255, 255, 255, 0.98);
  font-size: clamp(1.05rem, 2.4vw, 1.5rem);
  text-shadow: 0 0 10px rgba(0, 0, 0, 0.9);
}

@keyframes marqueeSlide {
  0% { transform: translateX(0); opacity: 0; }
  6% { opacity: 1; }
  92% { opacity: 1; }
  100% { transform: translateX(calc(-100vw - 120%)); opacity: 0; }
}

.hidden { display: none; }

.help {
  margin-top: 14px;
  padding: 14px 16px;
  border-radius: 18px;
  background: rgba(5, 8, 20, 0.72);
  color: var(--muted);
  border: 1px solid rgba(255, 255, 255, 0.08);
}
.help p { margin: 4px 0; }

@media (max-width: 900px) { .hud { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 760px) {
  body { padding: 10px; align-items: start; }
  .hero { flex-direction: column; align-items: stretch; }
  .hud { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 420px) { .hud { grid-template-columns: 1fr; } }

.install-button {
  border-color: rgba(109, 255, 159, 0.55);
  background: linear-gradient(135deg, rgba(109, 255, 159, 0.15), rgba(77, 252, 255, 0.20));
}

.score-form {
  width: min(520px, 100%);
  margin: 14px auto 18px;
  padding: 16px;
  border: 1px solid rgba(255, 209, 102, 0.45);
  border-radius: 18px;
  background: rgba(5, 8, 20, 0.74);
}

.score-form label {
  display: block;
  margin-bottom: 8px;
  color: var(--gold);
  text-transform: uppercase;
  font-weight: 900;
  letter-spacing: 0.16em;
  font-size: 0.78rem;
}

.score-form-row {
  display: flex;
  gap: 10px;
  justify-content: center;
  align-items: center;
}

.score-form input {
  width: 104px;
  padding: 10px 12px;
  border: 1px solid rgba(77, 252, 255, 0.62);
  border-radius: 14px;
  background: rgba(0, 0, 0, 0.42);
  color: var(--text);
  font-size: 1.55rem;
  font-weight: 900;
  text-align: center;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  outline: none;
}

.score-form input:focus {
  box-shadow: 0 0 18px rgba(77, 252, 255, 0.28);
}

#scoreFormStatus {
  display: block;
  min-height: 1.2em;
  margin-top: 8px;
  color: var(--muted);
}

.ranking-panel {
  margin-top: 14px;
  padding: 16px;
  border-radius: 22px;
  border: 1px solid rgba(77, 252, 255, 0.26);
  background: var(--panel);
  box-shadow: 0 0 28px rgba(77, 252, 255, 0.08), inset 0 0 18px rgba(255, 209, 102, 0.04);
}

.ranking-head {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
  margin-bottom: 12px;
}

.ranking-head h2 {
  margin: 0;
  font-size: clamp(1.25rem, 3vw, 2rem);
  text-shadow: 0 0 12px rgba(77, 252, 255, 0.36);
}

.ranking-list {
  list-style-position: inside;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.ranking-list li {
  display: grid;
  grid-template-columns: 3.8rem 1fr auto auto;
  gap: 10px;
  align-items: center;
  padding: 10px 12px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 14px;
  background: rgba(0, 0, 0, 0.18);
  color: var(--text);
}

.ranking-list .rank-pos { color: var(--gold); font-weight: 900; }
.ranking-list .rank-name { color: var(--cyan); font-weight: 900; letter-spacing: 0.12em; }
.ranking-list .rank-score { font-weight: 900; }
.ranking-list .rank-meta { color: var(--muted); font-size: 0.86rem; text-align: right; }
.ranking-list .empty-ranking { display: block; color: var(--muted); }

@media (max-width: 620px) {
  .score-form-row { flex-direction: column; }
  .ranking-head { flex-direction: column; align-items: stretch; }
  .ranking-list li { grid-template-columns: 3rem 1fr; }
  .ranking-list .rank-score,
  .ranking-list .rank-meta { grid-column: 2; text-align: left; }
}