html,
body {
  height: 100%;
}

body {
  margin: 0;
  overflow: hidden;
  background: #0b0f14;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto,
    Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji";
}

#gameCanvas {
  display: block;
  width: 100vw;
  height: 100vh;
}

.fireUi {
  position: fixed;
  top: 12px;
  left: 16px;
  z-index: 10;
  display: flex;
  align-items: center;
  gap: 12px;
  color: #e8eef6;
  font-size: 36px;
  font-weight: 700;
  text-shadow: 0 1px 0 rgba(0, 0, 0, 0.35);
  user-select: none;
}

.fireUi .fireIcon {
  height: 1em;
  width: auto;
  display: block;
  object-fit: contain;
}

.bombBtn {
  margin-left: 4px;
  padding: 0.15em 0.45em;
  font-size: 0.55em;
  font-weight: 800;
  line-height: 1.2;
  color: #dc2626;
  background: #fde047;
  border: 2px solid #ca8a04;
  border-radius: 6px;
  cursor: pointer;
  box-shadow: 0 1px 0 rgba(0, 0, 0, 0.2);
}

.bombBtn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.bombBtn:not(:disabled):active {
  transform: translateY(1px);
}

.hudTopRight {
  position: fixed;
  top: 12px;
  right: 16px;
  z-index: 10;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 8px;
  user-select: none;
}

.hudIcons {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 8px;
}

.hudIconBtn {
  width: 40px;
  height: 40px;
  padding: 0;
  border: none;
  border-radius: 10px;
  background: rgba(0, 0, 0, 0.5);
  color: #f3f6fb;
  cursor: pointer;
  display: grid;
  place-items: center;
  box-shadow: 0 1px 0 rgba(0, 0, 0, 0.25);
}

.hudIconBtn:hover {
  background: rgba(0, 0, 0, 0.62);
}

.hudIconBtn:active {
  transform: translateY(1px);
}

.hudIconImg {
  width: 24px;
  height: 24px;
  object-fit: contain;
  display: block;
  pointer-events: none;
  user-select: none;
  filter: drop-shadow(0 1px 0 rgba(0, 0, 0, 0.35));
}

.hudScorePanel {
  background: rgba(0, 0, 0, 0.5);
  border-radius: 12px;
  padding: 8px 14px 10px;
  color: #e8eef6;
  font-size: 18px;
  text-shadow: 0 1px 0 rgba(0, 0, 0, 0.35);
}

.uiRow {
  display: flex;
  align-items: baseline;
  justify-content: flex-end;
  gap: 8px;
  margin: 4px 0;
}

.label {
  opacity: 0.9;
}

.modalOverlay {
  position: fixed;
  inset: 0;
  z-index: 25;
  background: rgba(0, 0, 0, 0.5);
  display: none;
}

.modalOverlay:not([hidden]) {
  display: grid;
  place-items: center;
}

.modalOverlayGameover {
  z-index: 30;
  background: rgba(0, 0, 0, 0.6);
}

.overlayInner {
  background: rgba(25, 30, 40, 0.92);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 14px;
  padding: 26px 22px;
  width: min(520px, calc(100vw - 28px));
  max-height: min(90vh, 640px);
  color: #f3f6fb;
  text-align: center;
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.overlayInnerScroll {
  overflow-y: auto;
  text-align: left;
  align-items: stretch;
}

.modalTitle,
.overlayInner h1 {
  font-size: 26px;
  margin: 0 0 18px;
  font-weight: 800;
  text-align: center;
  width: 100%;
}

.helpBody {
  font-size: 15px;
  line-height: 1.55;
  color: #e2e8f0;
  margin-bottom: 20px;
}

.helpBody p {
  margin: 0 0 12px;
}

.helpBody p:last-child {
  margin-bottom: 0;
}

.overlayActionBtn {
  appearance: none;
  border: 0;
  border-radius: 7px;
  background: hsl(224 55% 52%);
  color: #fff;
  font-weight: 700;
  font-size: 16px;
  padding: 12px 18px;
  cursor: pointer;
  margin-top: 4px;
}

.overlayActionBtn:active {
  transform: translateY(1px);
}