* {
  box-sizing: border-box;
}

body {
  background: linear-gradient(145deg, #0f0f1a 0%, #1a1a2e 100%);
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  padding: 8px;
  margin: 0;
}

.game-card {
  background: rgba(28, 28, 48, 0.75);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 32px;
  padding: 16px 16px 20px;
  box-shadow: 0 30px 40px -20px rgba(0, 0, 0, 0.8), inset 0 1px 2px rgba(255, 255, 255, 0.05);
  max-width: 820px;
  width: 100%;
}

.game-title {
  font-weight: 300;
  letter-spacing: 3px;
  color: #d0cdf0;
  text-shadow: 0 2px 10px rgba(100, 80, 255, 0.25);
  font-size: 1.4rem;
  margin-bottom: 12px;
}

.game-title i {
  color: #b7aaff;
  margin-right: 8px;
}

.board-container {
  background: #1a1a2e;
  border-radius: 24px;
  padding: 10px;
  box-shadow: inset 0 8px 12px rgba(0, 0, 0, 0.6), 0 6px 12px rgba(0, 0, 0, 0.3);
  border: 1px solid #3d3d5c;
  display: flex;
  justify-content: center;
}

#gridCanvas {
  display: block;
  width: 100%;
  height: auto;
  max-width: 300px;
  background: #151525;
  border-radius: 16px;
  box-shadow: 0 0 0 1px #3a3a5a;
  image-rendering: crisp-edges;
  aspect-ratio: 10 / 20;
}

.info-panel {
  background: #1c1c30;
  border-radius: 24px;
  padding: 12px 12px;
  border: 1px solid #3e3e5e;
  box-shadow: inset 0 2px 6px rgba(0, 0, 0, 0.5);
  height: 100%;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.info-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
  justify-content: space-between;
}

.info-item {
  background: #12121f;
  border-radius: 40px;
  padding: 6px 14px;
  border: 1px solid #3a3a5a;
  color: #cdc9f0;
  font-weight: 400;
  letter-spacing: 0.3px;
  font-size: 0.85rem;
  flex: 1 1 auto;
  min-width: 60px;
  text-align: center;
}

.info-item span {
  font-weight: 600;
  color: #edeaff;
  background: #28284a;
  padding: 0 10px;
  border-radius: 40px;
  line-height: 1.6;
  margin-left: 4px;
}

.info-item.high-score {
  border-color: #f0d070;
  background: #1f1f30;
}

.info-item.high-score span {
  background: #4a3a1a;
  color: #f0d070;
}

.next-piece-box {
  background: #12121f;
  border-radius: 20px;
  padding: 8px 6px;
  border: 1px solid #3a3a5a;
  text-align: center;
  flex: 0 1 auto;
  min-width: 60px;
}

.next-piece-box small {
  font-size: 0.6rem;
  letter-spacing: 1px;
  color: #9a94c0;
}

#nextCanvas {
  width: 100%;
  height: auto;
  max-width: 70px;
  background: #0e0e1a;
  border-radius: 16px;
  margin: 0 auto;
  display: block;
  image-rendering: crisp-edges;
  aspect-ratio: 1 / 1;
}

.control-buttons {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 6px;
  margin-top: 4px;
}

.control-buttons .btn {
  border-radius: 60px;
  padding: 10px 12px;
  font-weight: 500;
  background: #2c2c4a;
  border: 1px solid #4f4f78;
  color: #dedaf5;
  transition: all 0.15s;
  box-shadow: 0 4px 0 #0e0e18;
  flex: 1 0 auto;
  font-size: 1.1rem;
  min-width: 48px;
  max-width: 70px;
}

.control-buttons .btn:active {
  transform: translateY(4px);
  box-shadow: 0 1px 0 #0e0e18;
}

.control-buttons .btn-primary {
  background: #6c5ce7 !important;
  border-color: #8f7ef0 !important;
  color: white !important;
  box-shadow: 0 4px 0 #3a2e8a !important;
  flex: 1 0 100%;
  max-width: 100%;
  font-size: 0.95rem;
  padding: 8px;
}

.control-buttons .btn-primary:active {
  transform: translateY(4px);
  box-shadow: 0 1px 0 #3a2e8a !important;
}

.btn-pause {
  background: #198754  !important;
  border-color: #6a6a92 !important;
  color: #f0edff !important;
  box-shadow: 0 4px 0 #2a2a42 !important;
  max-width: 80px !important;
}

.btn-pause:active {
  transform: translateY(4px);
  box-shadow: 0 1px 0 #2a2a42 !important;
}

.status-badge {
  background: #28284a;
  border-radius: 40px;
  padding: 3px 14px;
  font-size: 0.75rem;
  color: #b7b0e6;
  border: 1px solid #4a4a70;
  white-space: nowrap;
}

.top-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 12px;
}

.top-bar-right {
  display: flex;
  align-items: center;
  gap: 8px;
}

/* Mobile-first: controls above info */
.info-panel-mobile {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.info-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
}

.info-grid .info-item {
  flex: 1 1 auto;
  min-width: 55px;
  font-size: 0.8rem;
  padding: 4px 10px;
}

.info-grid .next-piece-box {
  flex: 0 1 auto;
}

@media (max-width: 767px) {
  .game-card {
    padding: 10px;
  }

  .game-title {
    font-size: 1.1rem;
    margin-bottom: 8px;
  }

  .board-container {
    padding: 6px;
  }

  .control-buttons .btn {
    padding: 8px 6px;
    font-size: 0.95rem;
    min-width: 40px;
    max-width: 60px;
  }

  .control-buttons .btn-primary {
    font-size: 0.85rem;
    padding: 6px;
  }

  .btn-pause {
    max-width: 80px !important;
    font-size: 0.8rem !important;
    padding: 6px 10px !important;
  }

  .info-item {
    font-size: 0.7rem;
    padding: 4px 8px;
    min-width: 45px;
  }

  .info-item span {
    padding: 0 6px;
    font-size: 0.7rem;
  }

  #nextCanvas {
    max-width: 50px;
  }

  .next-piece-box {
    padding: 4px 4px;
    min-width: 45px;
  }

  .top-bar {
    margin-bottom: 6px;
  }

  .status-badge {
    font-size: 0.65rem;
    padding: 2px 10px;
  }
}

@media (max-width: 400px) {
  .control-buttons .btn {
    font-size: 0.8rem;
    padding: 6px 4px;
    min-width: 34px;
    max-width: 50px;
  }

  .info-item {
    font-size: 0.65rem;
    padding: 3px 6px;
    min-width: 38px;
  }

  .game-title {
    font-size: 0.95rem;
  }
}