:root {
  --tg-bg: #07110f;
  --tg-panel: #0d1917;
  --tg-panel-hover: #12221f;
  --tg-line: rgba(181, 255, 226, 0.14);
  --tg-muted: #91a9a1;
  --tg-text: #f2fff9;
  --tg-accent: #64f4bd;
}

body {
  display: block;
  min-height: 100vh;
  padding: 88px 24px 48px;
  color: var(--tg-text);
  background:
    radial-gradient(circle at 50% -10%, rgba(68, 211, 158, 0.18), transparent 38rem),
    linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px),
    var(--tg-bg);
  background-size: auto, 32px 32px, 32px 32px, auto;
  animation: none;
}

.game-container {
  width: min(920px, 100%);
  max-width: none;
  margin: 0 auto;
  padding: 28px;
  display: grid;
  grid-template-columns: 180px 300px minmax(210px, 1fr);
  grid-template-areas: "header header header" "stats board controls";
  align-items: start;
  justify-content: center;
  gap: 24px;
  border: 1px solid var(--tg-line);
  border-radius: 24px;
  background: rgba(9, 20, 17, 0.9);
  box-shadow: 0 32px 90px rgba(0, 0, 0, 0.42);
  backdrop-filter: blur(16px);
}

.game-container::before { display: none; }

.game-title {
  grid-area: header;
  width: 100%;
  padding-bottom: 22px;
  border-bottom: 1px solid var(--tg-line);
}

.game-kicker {
  margin-bottom: 7px;
  color: var(--tg-accent);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.game-title h1 {
  font-size: clamp(28px, 4vw, 44px);
  line-height: 1;
  letter-spacing: -0.04em;
}

.game-title p:last-child {
  max-width: 590px;
  margin-top: 10px;
  color: var(--tg-muted);
  font-size: 14px;
  line-height: 1.55;
}

.info-panels-row {
  grid-area: stats;
  width: 100%;
  max-width: none;
  flex-direction: column;
  gap: 12px;
}

.info-panel {
  width: 100%;
  max-width: none;
  min-height: 0;
  padding: 18px;
  flex: none;
  border: 1px solid var(--tg-line);
  border-radius: 16px;
  background: var(--tg-panel);
  box-shadow: none;
}

.info-panel h2 {
  margin-bottom: 10px;
  color: var(--tg-muted);
  font-size: 10px;
  letter-spacing: 0.16em;
  text-shadow: none;
}

.score-display { color: var(--tg-accent); font-size: 26px; text-shadow: none; }
.level-display, .lines-display { margin-top: 7px; color: var(--tg-muted); font-size: 12px; text-shadow: none; }

.next-piece {
  width: 112px;
  height: 112px;
  border: 1px solid var(--tg-line);
  border-radius: 12px;
  background: #06100e;
  box-shadow: inset 0 0 24px rgba(100, 244, 189, 0.05);
}

.game-board-shell {
  grid-area: board;
  border-radius: 14px;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.38);
}

#tetris {
  width: 300px;
  height: 600px;
  border: 1px solid rgba(107, 220, 255, 0.35);
  border-radius: 14px;
  background: #050c0b;
  box-shadow: inset 0 0 35px rgba(64, 191, 153, 0.08);
}

#tetris:hover { transform: none; box-shadow: inset 0 0 35px rgba(64, 191, 153, 0.1); }
.game-hud { top: 8px; left: 8px; right: 8px; gap: 4px; }
.hud-item { padding: 7px 5px; border-color: var(--tg-line); border-radius: 8px; background: rgba(6, 15, 13, 0.88); box-shadow: none; }
.hud-label { color: var(--tg-muted); }
.hud-value, .hud-item.score .hud-value { color: var(--tg-text); text-shadow: none; }
.hud-item.score .hud-value { color: var(--tg-accent); }

.controls {
  grid-area: controls;
  width: 100%;
  max-width: none;
  padding: 18px;
  border: 1px solid var(--tg-line);
  border-radius: 16px;
  background: var(--tg-panel);
  box-shadow: none;
}

.controls::before { display: none; }
.controls:hover, .controls.expanded { transform: none; border-color: rgba(100, 244, 189, 0.32); background: var(--tg-panel-hover); box-shadow: none; }
.controls h3 { margin: 0; text-align: left; font-size: 12px; letter-spacing: 0.14em; text-shadow: none; }
.controls h3::after { float: right; color: var(--tg-accent); }
.controls p { color: #c4d7d0; font-size: 13px; text-shadow: none; }

.pause-btn, .hold-btn, .new-game-btn, .primary-game-btn, .secondary-game-btn,
.restart-btn, .rank-btn, .back-btn {
  border-radius: 10px;
  font-family: inherit;
  font-weight: 800;
  letter-spacing: 0.02em;
  transition: transform 0.18s ease, border-color 0.18s ease, background 0.18s ease;
}

.pause-btn, .primary-game-btn, .restart-btn { color: #062017; border: 1px solid var(--tg-accent); background: var(--tg-accent); box-shadow: none; }
.hold-btn, .new-game-btn, .secondary-game-btn { width: 100%; margin-top: 10px; padding: 12px 20px; color: var(--tg-text); border: 1px solid var(--tg-line); background: rgba(255, 255, 255, 0.055); box-shadow: none; cursor: pointer; }
.pause-btn:hover, .hold-btn:hover, .new-game-btn:hover, .primary-game-btn:hover,
.secondary-game-btn:hover, .restart-btn:hover, .rank-btn:hover, .back-btn:hover { transform: translateY(-2px); box-shadow: none; }
.volume-slider { accent-color: var(--tg-accent); }

.back-button-container { top: 20px; left: 24px; }
.top-actions { top: 20px; right: 24px; }
.back-btn, .rank-btn { padding: 10px 14px; border: 1px solid var(--tg-line); color: var(--tg-text); background: rgba(7, 17, 15, 0.88); box-shadow: none; text-shadow: none; backdrop-filter: blur(12px); }

.modal-screen { background: rgba(2, 8, 6, 0.82); }
.modal-card, .game-over { border: 1px solid var(--tg-line); border-radius: 20px; background: #0d1917; box-shadow: 0 28px 80px rgba(0, 0, 0, 0.55); }
.player-name-input { border-color: var(--tg-line); background: #07110f; }
.player-name-input:focus { border-color: var(--tg-accent); box-shadow: 0 0 0 3px rgba(100, 244, 189, 0.12); }
.leaderboard-score, .game-over .new-record { color: var(--tg-accent); }

@media (max-width: 800px) {
  body { position: static; min-height: 100dvh; padding: 70px 12px 24px; overflow-x: hidden; overflow-y: auto; }
  .game-container { width: min(420px, 100%); min-height: 0; padding: 16px; display: flex; flex-direction: column; gap: 14px; border-radius: 18px; }
  .game-title { order: 1; padding-bottom: 16px; }
  .game-title h1 { font-size: 30px; }
  .game-title p:last-child { font-size: 12px; }
  .info-panels-row { order: 2; flex-direction: row; max-width: none; }
  .info-panel { padding: 10px; min-height: 76px; }
  .info-panel h2 { margin-bottom: 5px; }
  .score-display { font-size: 18px; }
  .level-display, .lines-display { margin-top: 3px; font-size: 9px; }
  .next-piece { width: 54px; height: 54px; }
  .game-board-shell { order: 3; width: auto; align-self: center; flex: none; }
  .controls { order: 4; padding: 14px; }
  .back-button-container { top: max(12px, env(safe-area-inset-top)); left: 12px; }
  .top-actions { top: max(12px, env(safe-area-inset-top)); right: 12px; }
  .back-btn, .rank-btn { padding: 8px 10px; font-size: 10px; border-radius: 8px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; }
}

/* Keep game information outside the playable grid. */
.game-board-shell {
  display: flex;
  flex-direction: column;
}

.game-hud {
  position: static;
  width: 100%;
  margin-bottom: 8px;
  pointer-events: auto;
}

.points-pop {
  top: 82px;
}

@media (max-width: 800px) {
  .game-board-shell {
    display: flex;
    align-items: stretch;
  }

  .game-hud {
    position: static;
    width: 100%;
    margin-bottom: 6px;
  }

  .points-pop {
    top: 66px;
  }
}