:root {
  --tetris-neon: #5ee9ff;
  --tetris-amber: #fcd34d;
  --tetris-pink: #fb7185;
  --tetris-deep: #0b1229;
}

.tetris-wrapper {
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
  padding: 2rem 1.75rem 2.5rem;
  max-width: 1260px;
  margin: 0 auto;
}

.tetris-hero {
  align-items: flex-start;
  gap: 1.2rem;
}

.tetris-hero-actions {
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
  align-items: flex-end;
  justify-content: center;
}

.tetris-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  justify-content: flex-end;
}

.tetris-hero-cta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.tetris-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  align-items: center;
}

.tetris-toast {
  padding: 0.75rem 1rem;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: #e2e8f0;
}

.tetris-toast[data-variant="success"] {
  border-color: rgba(34, 197, 94, 0.55);
  background: rgba(34, 197, 94, 0.12);
  color: #bbf7d0;
}

.tetris-toast[data-variant="warning"] {
  border-color: rgba(249, 172, 52, 0.6);
  background: rgba(249, 172, 52, 0.14);
  color: #fde68a;
}

.tetris-toast[data-variant="error"] {
  border-color: rgba(248, 113, 113, 0.6);
  background: rgba(248, 113, 113, 0.12);
  color: #fecdd3;
}

.tetris-toast[data-variant="info"] {
  border-color: rgba(94, 234, 212, 0.5);
  background: rgba(94, 234, 212, 0.12);
  color: #cafffb;
}

.mp-form {
  display: grid;
  gap: 0.7rem;
}

.mp-form label {
  display: grid;
  gap: 0.35rem;
  font-size: 0.95rem;
  color: var(--text-muted);
}

.mp-form input {
  width: 100%;
  border-radius: 14px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.06);
  padding: 0.75rem 0.9rem;
  color: var(--text-primary);
}

.mp-form button {
  justify-self: flex-start;
  min-width: 160px;
}

.tetris-lobby {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(circle at 12% 25%, rgba(94, 233, 255, 0.12), transparent 45%),
    radial-gradient(circle at 85% 10%, rgba(251, 113, 133, 0.14), transparent 42%);
}

.tetris-lobby__actions {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-wrap: wrap;
}

.tetris-mp-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.1rem;
}

.tetris-mp-card {
  padding: 1.25rem;
  border-radius: 18px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.025);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.03);
  display: grid;
  gap: 0.75rem;
}

.tetris-mp-card header strong {
  display: block;
  font-size: 1.05rem;
  margin-bottom: 0.3rem;
}

.mp-status {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 0.5rem;
  margin: 0.5rem 0;
}

.mp-status dt {
  font-size: 0.85rem;
  opacity: 0.85;
  margin-bottom: 0.2rem;
}

.mp-status dd {
  margin: 0;
  padding: 0.65rem 0.75rem;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
  font-weight: 700;
}

.mp-players {
  list-style: none;
  margin: 0.4rem 0 0;
  padding: 0;
  display: grid;
  gap: 0.35rem;
}

.mp-players li {
  padding: 0.45rem 0.6rem;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
  font-weight: 600;
  letter-spacing: 0.01em;
}

.mp-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.tetris-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) minmax(320px, 1fr);
  gap: clamp(1.4rem, 2vw, 1.8rem);
  align-items: start;
}

.tetris-panel {
  padding: clamp(1.4rem, 2.2vw, 2rem);
  border-radius: 20px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: linear-gradient(160deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.02));
  box-shadow: 0 20px 60px rgba(8, 11, 32, 0.45);
  display: grid;
  gap: 1rem;
}

.tetris-panel--multi {
  min-height: 100%;
}

.tetris-hud {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
  justify-content: flex-end;
}

.tetris-practice-banner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.9rem 1rem;
  border-radius: 14px;
  background: linear-gradient(120deg, rgba(94, 233, 255, 0.18), rgba(251, 113, 133, 0.18));
  border: 1px solid rgba(255, 255, 255, 0.14);
}

.tetris-game-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(280px, 0.95fr);
  gap: 1rem;
  align-items: stretch;
}

.tetris-main {
  display: grid;
  gap: 0.8rem;
}

.tetris-main-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
}

.tetris-main-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 0.5rem;
}

.tetris-stat {
  padding: 0.75rem 0.85rem;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.tetris-stat strong {
  display: block;
  font-size: 1.1rem;
}

.tetris-stat strong.is-hot {
  color: var(--tetris-pink);
  text-shadow: 0 0 10px rgba(251, 113, 133, 0.45);
}

.tetris-stat strong.is-boost {
  color: var(--tetris-amber);
  text-shadow: 0 0 10px rgba(252, 211, 77, 0.4);
}

.tetris-board-wrap {
  padding: 0.65rem;
  border-radius: 18px;
  background:
    radial-gradient(circle at 25% 20%, rgba(94, 233, 255, 0.16), transparent 60%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.02));
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: inset 0 12px 30px rgba(0, 0, 0, 0.25);
  display: grid;
  place-items: center;
  max-width: 520px;
  position: relative;
  overflow: hidden;
}

.tetris-board-wrap.tetris-board-wrap--shake {
  animation: board-shake 0.28s ease;
}

.tetris-ko-banner {
  margin-top: 0.6rem;
  padding: 0.9rem 1rem;
  border-radius: 14px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(248, 113, 113, 0.12);
  color: #fecdd3;
}

.tetris-playfield {
  --cell-size: clamp(20px, 2.6vw, 28px);
  --cell-gap: 2px;
  --frame-pad: 6px;
  --board-cols: 10;
  --board-rows: 20;
  width: calc(var(--cell-size) * var(--board-cols) + var(--cell-gap) * (var(--board-cols) - 1) + var(--frame-pad) * 2);
  height: calc(var(--cell-size) * var(--board-rows) + var(--cell-gap) * (var(--board-rows) - 1) + var(--frame-pad) * 2);
  display: grid;
  grid-template-columns: repeat(var(--board-cols), var(--cell-size));
  grid-template-rows: repeat(var(--board-rows), var(--cell-size));
  gap: var(--cell-gap);
  background: radial-gradient(140% 140% at 20% 20%, rgba(255, 255, 255, 0.12), rgba(255, 255, 255, 0.02));
  border-radius: 14px;
  padding: var(--frame-pad);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.tetris-cell {
  width: var(--cell-size);
  height: var(--cell-size);
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px dashed rgba(255, 255, 255, 0.04);
  display: grid;
  place-items: center;
  font-weight: 700;
  font-size: 0.85rem;
}

.tetris-cell--filled {
  background: color-mix(in srgb, var(--cell-color, var(--tetris-neon)) 85%, transparent);
  border-color: color-mix(in srgb, var(--cell-color, var(--tetris-neon)) 60%, transparent);
  color: #0b1021;
  text-shadow: 0 0 6px rgba(255, 255, 255, 0.65);
}

.tetris-cell--ghost {
  border: 1px dashed color-mix(in srgb, var(--cell-color, var(--tetris-neon)) 65%, transparent);
  background: color-mix(in srgb, var(--cell-color, var(--tetris-neon)) 15%, transparent);
}

.tetris-combo-fx {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -40%) scale(0.8);
  padding: 0.45rem 0.8rem;
  border-radius: 12px;
  background: rgba(251, 113, 133, 0.16);
  color: #fff;
  font-weight: 800;
  letter-spacing: 0.02em;
  text-shadow: 0 4px 18px rgba(0, 0, 0, 0.35);
  border: 1px solid rgba(251, 113, 133, 0.45);
  box-shadow:
    0 8px 28px rgba(251, 113, 133, 0.25),
    inset 0 0 12px rgba(255, 255, 255, 0.15);
  opacity: 0;
  pointer-events: none;
}

.tetris-combo-fx.is-active {
  animation: combo-pop 0.95s ease;
}

@keyframes combo-pop {
  0% {
    opacity: 0;
    transform: translate(-50%, -30%) scale(0.75);
  }
  20% {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1.05);
  }
  60% {
    opacity: 0.95;
    transform: translate(-50%, -55%) scale(1);
  }
  100% {
    opacity: 0;
    transform: translate(-50%, -62%) scale(1.18);
  }
}

@keyframes board-shake {
  0% {
    transform: translateY(0) rotate(0deg);
  }
  20% {
    transform: translateY(-1px) rotate(-0.2deg);
  }
  45% {
    transform: translateY(1px) rotate(0.2deg);
  }
  70% {
    transform: translateY(-0.5px) rotate(-0.1deg);
  }
  100% {
    transform: translateY(0) rotate(0deg);
  }
}

.tetris-side {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  align-self: stretch;
  justify-content: flex-end;
}

.tetris-hold-panel,
.tetris-next-panel,
.tetris-controls {
  padding: 0.9rem;
  border-radius: 14px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.04);
  display: grid;
  gap: 0.5rem;
  align-content: start;
}

.tetris-next {
  display: grid;
  gap: 0.55rem;
  margin-top: 1rem;
}

.tetris-next-grid {
  display: grid;
  gap: 0.75rem;
}

.tetris-next-item {
  padding: 0.5rem;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.04);
}

.tetris-mini-board {
  margin-top: 1rem;
  display: grid;
  grid-template-columns: repeat(4, 14px);
  grid-template-rows: repeat(4, 14px);
  gap: 2px;
}

.tetris-mini-board.tetris-hold-board {
  grid-template-columns: repeat(4, 16px);
  grid-template-rows: repeat(4, 16px);
}

.tetris-mini-cell {
  width: 14px;
  height: 14px;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.08);
  display: grid;
  place-items: center;
  font-size: 0.65rem;
  color: #0b1021;
}

.tetris-mini-cell--filled {
  background: color-mix(in srgb, var(--mini-color, #64748b) 80%, transparent);
  font-weight: 700;
}

.tetris-controls ul {
  padding-left: 1rem;
  display: grid;
  gap: 0.2rem;
  color: #e2e8f0;
}

.tetris-controls li {
  line-height: 1.5;
}

.tetris-controls--wide {
  margin-top: 0.9rem;
}

.tetris-controls--wide ul {
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 0.35rem 1.5rem;
}

.tetris-others {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  gap: 0.75rem;
}

.tetris-other-card {
  padding: 0.85rem;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
  display: grid;
  gap: 0.5rem;
}

.tetris-other-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.3rem;
}

.tetris-mini-board-large {
  display: grid;
  --mini-cols: 10;
  --mini-rows: 20;
  --mini-cell-size: 12px;
  --mini-gap: 2px;
  --mini-pad: 6px;
  width: calc(var(--mini-cell-size) * var(--mini-cols) + var(--mini-gap) * (var(--mini-cols) - 1) + var(--mini-pad) * 2);
  height: calc(var(--mini-cell-size) * var(--mini-rows) + var(--mini-gap) * (var(--mini-rows) - 1) + var(--mini-pad) * 2);
  grid-template-columns: repeat(var(--mini-cols), var(--mini-cell-size));
  grid-template-rows: repeat(var(--mini-rows), var(--mini-cell-size));
  gap: var(--mini-gap);
  padding: var(--mini-pad);
  background: rgba(255, 255, 255, 0.03);
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, 0.05);
  box-shadow: inset 0 10px 30px rgba(0, 0, 0, 0.25);
}

.tetris-mini-board-large .tetris-mini-cell {
  width: 12px;
  height: 12px;
  font-size: 0.58rem;
}

.tetris-badge {
  padding: 0.25rem 0.75rem;
  border-radius: 999px;
  font-size: 0.85rem;
  border: 1px solid rgba(255, 255, 255, 0.3);
  background: rgba(148, 163, 184, 0.15);
}

.tetris-badge[data-state="play"] {
  background: rgba(34, 197, 94, 0.15);
  border-color: #22c55e;
  color: #bbf7d0;
}

.tetris-badge[data-state="idle"] {
  background: rgba(248, 180, 0, 0.15);
  color: #fcd34d;
}

.tetris-stat-row {
  font-size: 0.9rem;
  color: #e2e8f0;
}

.tetris-results {
  margin-top: 0.6rem;
  padding: 0.9rem;
  border-radius: 14px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.04);
  display: grid;
  gap: 0.5rem;
}

.tetris-results-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.tetris-results-list {
  margin: 0;
  padding-left: 1.2rem;
  display: grid;
  gap: 0.35rem;
}

.tetris-results-list li {
  list-style: decimal;
  padding: 0.35rem 0.4rem;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.tetris-info-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 0.9rem;
}

.info-card {
  padding: 1rem 1.1rem;
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: linear-gradient(160deg, rgba(255, 255, 255, 0.07), rgba(255, 255, 255, 0.02));
  box-shadow: 0 12px 30px rgba(6, 10, 28, 0.35);
}

.rule-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 0.9rem;
}

.rule-card {
  padding: 1rem 1.1rem;
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: linear-gradient(160deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.02));
  box-shadow: 0 12px 30px rgba(6, 10, 28, 0.35);
}

@media (max-width: 1024px) {
  .tetris-layout {
    grid-template-columns: 1fr;
  }

  .tetris-game-grid {
    grid-template-columns: 1fr;
  }

  .tetris-hud {
    justify-content: flex-start;
  }
}

@media (max-width: 720px) {
  .tetris-hero,
  .tetris-hero-actions {
    align-items: flex-start;
  }

  .tetris-practice-banner {
    flex-direction: column;
    align-items: flex-start;
  }

  .tetris-board-wrap {
    width: 100%;
  }
}