* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  font-family: Arial, Helvetica, sans-serif;
  background: #ffffff;
  color: #000000;
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

.app {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  background: #ffffff;
  min-width: 0;
}

.top-area {
  height: 70px;
  flex-shrink: 0;
  border-bottom: 2px solid #000000;
  background: #ffffff;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  padding: 0 16px;
  min-width: 0;
}

.play-button {
  height: 42px;
  min-width: 130px;
  border: 2px solid #000000;
  background: #000000;
  color: #ffffff;
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  font-family: Arial, Helvetica, sans-serif;
  flex: 0 0 auto;
}

.play-button:hover {
  background: #ffffff;
  color: #000000;
}

.play-button.stop {
  background: #ffffff;
  color: #000000;
}

.tab-bar {
  height: 42px;
  flex-shrink: 0;
  display: flex;
  align-items: flex-end;
  border-bottom: 2px solid #000000;
  background: #ffffff;
  overflow-x: auto;
  overflow-y: hidden;
  white-space: nowrap;
  -webkit-overflow-scrolling: touch;
  overscroll-behavior-x: contain;
  touch-action: pan-x;
  min-width: 0;
}

.tab-bar::-webkit-scrollbar {
  height: 0;
}

.tab {
  height: 42px;
  min-width: 130px;
  padding: 0 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px solid #000000;
  border-bottom: 0;
  background: #ffffff;
  font-size: 14px;
  font-weight: 600;
  flex: 0 0 auto;
  white-space: nowrap;
  user-select: none;
}

.workspace {
  position: relative;
  flex: 1;
  min-height: 0;
  overflow: auto;
  background: #ffffff;
  -webkit-overflow-scrolling: touch;
  touch-action: pan-x pan-y;
}

.grid-area {
  min-width: max-content;
  min-height: max-content;
  padding: 20px;
}

.grid {
  display: grid;
  grid-template-columns: 52px repeat(var(--grid-width, 16), 42px);
  grid-auto-rows: 42px;
  width: max-content;
  border-top: 1px solid #000000;
  border-left: 1px solid #000000;
}

.cell,
.layer-label {
  position: relative;
  width: 42px;
  height: 42px;
  border-right: 1px solid #000000;
  border-bottom: 1px solid #000000;
  background: #ffffff;
}

.cell {
  cursor: pointer;
  touch-action: manipulation;
}

.cell:hover {
  background: #f3f3f3;
}

.layer-label {
  width: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  font-weight: 700;
  cursor: default;
}

.cell.player-head {
  background: #e5e5e5;
  box-shadow: inset 0 0 0 2px #000000;
}

.block {
  position: absolute;
  left: 5px;
  top: 5px;
  width: 30px;
  height: 30px;
  border: 1px solid #000000;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 10px;
  font-weight: 700;
  user-select: none;
}

.block-dirt {
  background: #8b5a2b;
}

.block-plank {
  background: #c69c6d;
}

.block-stone {
  background: #999999;
}

.block-sand {
  background: #e6d28a;
}

.block-iron {
  background: #ffffff;
}

.block-repeater {
  background: #ffffff;
  border: 2px solid #d00000;
}

.block-repeater.powered {
  background: #fff0f0;
  border-color: #ff2020;
}

.repeater-line {
  position: absolute;
  left: 5px;
  right: 5px;
  top: 50%;
  height: 3px;
  transform: translateY(-50%);
  background: #d00000;
}

.block-repeater.powered .repeater-line {
  background: #ff2020;
}

.repeater-dot {
  position: absolute;
  width: 5px;
  height: 5px;
  top: 50%;
  transform: translateY(-50%);
  border-radius: 50%;
  background: #d00000;
}

.repeater-dot.left {
  left: 5px;
}

.repeater-dot.right {
  right: 5px;
}

.block-repeater.powered .repeater-dot {
  background: #ff2020;
}

.value {
  position: absolute;
  right: 1px;
  bottom: 1px;
  min-width: 12px;
  height: 12px;
  padding: 0 2px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid #000000;
  background: #ffffff;
  color: #000000;
  font-size: 8px;
  line-height: 1;
  z-index: 5;
}

.redstone {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.redstone::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 8px;
  height: 8px;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  background: #d00000;
}

.redstone.powered::before {
  background: #ff2020;
}

.redstone-arm {
  position: absolute;
  background: #d00000;
}

.redstone.powered .redstone-arm {
  background: #ff2020;
}

.redstone-left {
  left: 0;
  top: 50%;
  width: 50%;
  height: 4px;
  transform: translateY(-50%);
}

.redstone-right {
  right: 0;
  top: 50%;
  width: 50%;
  height: 4px;
  transform: translateY(-50%);
}

.redstone-up {
  left: 50%;
  top: 0;
  width: 4px;
  height: 50%;
  transform: translateX(-50%);
}

.redstone-down {
  left: 50%;
  bottom: 0;
  width: 4px;
  height: 50%;
  transform: translateX(-50%);
}

.info-panel {
  position: fixed;
  right: 16px;
  bottom: 16px;
  width: 250px;
  padding: 14px;
  border: 2px solid #000000;
  background: #ffffff;
  z-index: 100;
  display: none;
}

.info-panel.visible {
  display: block;
}

.info-title {
  margin-bottom: 10px;
  padding-bottom: 8px;
  border-bottom: 1px solid #000000;
  font-size: 13px;
  font-weight: 700;
}

.info-row {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  min-height: 24px;
  font-size: 12px;
}

.info-label {
  font-weight: 700;
}

.info-value {
  text-align: right;
}

.command-modal {
  position: fixed;
  inset: 0;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 20px;
  background: rgba(255, 255, 255, 0.85);
  z-index: 1000;
}

.command-modal.visible {
  display: flex;
}

.command-modal-box {
  width: min(700px, 100%);
  max-height: 90%;
  padding: 16px;
  border: 2px solid #000000;
  background: #ffffff;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.command-modal-title {
  font-size: 14px;
  font-weight: 700;
  padding-bottom: 10px;
  border-bottom: 1px solid #000000;
}

.command-textarea {
  width: 100%;
  min-height: 300px;
  resize: vertical;
  padding: 10px;
  border: 2px solid #000000;
  background: #ffffff;
  color: #000000;
  font-family: monospace;
  font-size: 12px;
  line-height: 1.5;
  outline: none;
}

.command-modal-buttons {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
}

@media (max-width: 600px) {
  .top-area {
    height: 55px;
    padding: 0 10px;
  }

  .play-button {
    height: 30px;
    min-width: 110px;
    padding: 0 14px;
    font-size: 12px;
  }

  .tab-bar {
    height: 40px;
    padding: 0 4px;
  }

  .tab {
    height: 40px;
    min-width: 110px;
    padding: 0 14px;
    font-size: 13px;
  }

  .grid-area {
    padding: 12px;
  }

  .grid {
    grid-template-columns: 46px repeat(var(--grid-width, 16), 38px);
    grid-auto-rows: 38px;
  }

  .cell {
    width: 38px;
    height: 38px;
  }

  .layer-label {
    width: 46px;
    height: 38px;
  }

  .block {
    width: 27px;
    height: 27px;
    left: 4px;
    top: 4px;
  }

  .info-panel {
    right: 10px;
    bottom: 10px;
    width: calc(100vw - 20px);
    max-width: 260px;
  }

  .command-modal {
    padding: 10px;
  }

  .command-modal-box {
    width: 100%;
    max-height: 95%;
    padding: 12px;
  }

  .command-textarea {
    min-height: 240px;
  }
}