:root {
  --bg-1: #10213d;
  --bg-2: #1f4670;
  --panel: rgba(255, 255, 255, 0.92);
  --panel-strong: #ffffff;
  --text: #14213d;
  --muted: #607089;
  --accent: #ffb703;
  --accent-dark: #e18f00;
  --green: #2bb673;
  --danger: #ef476f;
  --shadow: 0 18px 60px rgba(0, 0, 0, 0.28);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  color: var(--text);
  background:
    radial-gradient(circle at 12% 10%, rgba(255, 183, 3, 0.28), transparent 32rem),
    radial-gradient(circle at 86% 14%, rgba(139, 211, 246, 0.24), transparent 28rem),
    linear-gradient(135deg, var(--bg-1), var(--bg-2));
  display: grid;
  place-items: center;
  padding: 28px;
}

button,
input {
  font: inherit;
}

button {
  border: 0;
  cursor: pointer;
  transition: transform 120ms ease, box-shadow 120ms ease, background 120ms ease, opacity 120ms ease;
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.5;
}

button:not(:disabled):active {
  transform: translateY(1px) scale(0.99);
}

.app-shell {
  width: min(1120px, 100%);
  display: grid;
  grid-template-columns: minmax(310px, 520px) minmax(250px, 330px);
  align-items: start;
  justify-content: center;
  gap: 22px;
}

.game-card,
.leaderboard-card {
  background: rgba(255, 255, 255, 0.16);
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 28px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.game-card {
  padding: 18px;
}

.leaderboard-card {
  padding: 22px;
  color: var(--text);
  background: rgba(255, 255, 255, 0.86);
}

.top-bar,
.leaderboard-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  margin-bottom: 14px;
}

h1,
h2,
p {
  margin: 0;
}

h1 {
  color: #fff;
  font-size: clamp(1.35rem, 3vw, 2rem);
  letter-spacing: -0.04em;
}

.leaderboard-card h2,
.panel h2 {
  color: var(--text);
  font-size: 1.45rem;
  letter-spacing: -0.035em;
}

.eyebrow {
  color: var(--accent);
  font-size: 0.76rem;
  font-weight: 900;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.panel .eyebrow,
.leaderboard-card .eyebrow {
  color: var(--accent-dark);
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

.button-row.center {
  justify-content: center;
  margin-top: 18px;
}

.primary-button,
.ghost-button {
  border-radius: 999px;
  font-weight: 900;
  padding: 11px 16px;
}

.primary-button {
  color: #321d00;
  background: linear-gradient(180deg, #ffd166, var(--accent));
  box-shadow: 0 8px 0 #ad6b00, 0 15px 24px rgba(143, 91, 0, 0.25);
}

.primary-button:hover:not(:disabled) {
  box-shadow: 0 7px 0 #ad6b00, 0 13px 20px rgba(143, 91, 0, 0.3);
}

.ghost-button {
  color: #fff;
  background: rgba(255, 255, 255, 0.17);
  border: 1px solid rgba(255, 255, 255, 0.24);
}

.leaderboard-card .ghost-button,
.panel .ghost-button {
  color: var(--text);
  background: rgba(20, 33, 61, 0.08);
  border: 1px solid rgba(20, 33, 61, 0.12);
}

.ghost-button.small {
  padding: 8px 12px;
  font-size: 0.85rem;
}

.canvas-wrap {
  position: relative;
  overflow: hidden;
  border-radius: 22px;
  background: #82d8ff;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.28), 0 16px 38px rgba(0, 0, 0, 0.18);
  touch-action: manipulation;
}

canvas {
  display: block;
  width: 100%;
  aspect-ratio: 420 / 640;
  user-select: none;
}

.hud {
  pointer-events: none;
  position: absolute;
  inset: 14px 14px auto 14px;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 10px;
}

.score-pill {
  min-width: 86px;
  border-radius: 18px;
  padding: 9px 13px;
  text-align: center;
  color: #fff;
  background: rgba(0, 0, 0, 0.22);
  border: 1px solid rgba(255, 255, 255, 0.24);
  text-shadow: 0 2px 0 rgba(0, 0, 0, 0.15);
  backdrop-filter: blur(8px);
}

.score-pill span {
  display: block;
  font-size: 0.68rem;
  font-weight: 900;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  opacity: 0.86;
}

.score-pill strong {
  display: block;
  font-size: 1.65rem;
  line-height: 1.05;
}

.overlay {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  padding: 22px;
  background: linear-gradient(rgba(9, 20, 45, 0.18), rgba(9, 20, 45, 0.42));
  opacity: 0;
  pointer-events: none;
  transition: opacity 180ms ease;
}

.overlay.is-visible,
.overlay:not([hidden]) {
  opacity: 1;
  pointer-events: auto;
}

.overlay[hidden] {
  display: none;
}

.panel {
  width: min(330px, 100%);
  padding: 24px;
  border-radius: 26px;
  text-align: center;
  background: var(--panel);
  border: 1px solid rgba(255, 255, 255, 0.78);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.28);
}

.panel p:not(.eyebrow):not(.tiny) {
  margin-top: 8px;
  color: var(--muted);
  line-height: 1.45;
}

.tiny {
  margin-top: 14px;
  color: var(--muted);
  font-size: 0.8rem;
  line-height: 1.45;
}

.muted {
  color: rgba(20, 33, 61, 0.55);
}

.score-entry label {
  display: block;
  margin-top: 18px;
  margin-bottom: 8px;
  font-weight: 900;
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.score-entry input {
  width: 100%;
  border: 2px solid rgba(20, 33, 61, 0.16);
  border-radius: 16px;
  padding: 13px 14px;
  text-align: center;
  color: var(--text);
  background: var(--panel-strong);
  font-size: 1.2rem;
  font-weight: 900;
  text-transform: uppercase;
  outline: none;
}

.score-entry input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 4px rgba(255, 183, 3, 0.22);
}

.leaderboard-list {
  display: grid;
  gap: 8px;
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
}

.leaderboard-list li {
  display: grid;
  grid-template-columns: 34px 1fr auto;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: 16px;
  background: rgba(20, 33, 61, 0.06);
  border: 1px solid rgba(20, 33, 61, 0.08);
  font-weight: 850;
}

.leaderboard-list li.empty {
  display: block;
  color: var(--muted);
  font-weight: 650;
  line-height: 1.4;
}

.rank {
  display: grid;
  place-items: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  color: #fff;
  background: var(--green);
  font-size: 0.83rem;
}

.player-name {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.player-score {
  color: var(--accent-dark);
  font-variant-numeric: tabular-nums;
}

@media (max-width: 870px) {
  body {
    padding: 18px;
    align-items: start;
  }

  .app-shell {
    grid-template-columns: minmax(280px, 520px);
  }

  .leaderboard-card {
    order: 2;
  }
}

@media (max-width: 480px) {
  body {
    padding: 10px;
  }

  .game-card,
  .leaderboard-card {
    border-radius: 22px;
    padding: 12px;
  }

  .top-bar,
  .leaderboard-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .canvas-wrap {
    border-radius: 18px;
  }

  .hud {
    inset: 10px 10px auto 10px;
  }

  .score-pill {
    min-width: 74px;
    padding: 8px 10px;
  }

  .score-pill strong {
    font-size: 1.35rem;
  }

  .panel {
    padding: 20px;
  }
}