* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  min-height: 100vh;
  font-family: "Trebuchet MS", "Segoe UI", sans-serif;
  background: #1a1a1a;
  color: #f8fafc;
}

.page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.home-page,
.settings-page,
.game-page {
  background: transparent;
}

.app-shell {
  width: 100%;
  max-width: 800px;
  aspect-ratio: 2 / 1;
  position: relative;
  overflow: hidden;
}

/* Cards used by menu/settings */
.menu-card,
.game-shell {
  background: rgba(15, 23, 42, 0.94);
  border: 2px solid #334155;
  border-radius: 24px;
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.35);
  width: 100%;
}

.menu-card {
  text-align: center;
}

.menu-content {
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 32px 28px;
}

.settings-content {
  justify-content: flex-start;
  text-align: left;
  padding-bottom: 20px;
}

.settings-scroll-area {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  padding-right: 6px;
  scrollbar-gutter: stable;
}

.eyebrow {
  margin: 0 0 14px;
  color: #fde68a;
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.menu-card h1 {
  margin: 0 0 8px;
  font-size: 2.4rem;
  line-height: 1.05;
}

.subtitle {
  margin: 0 0 32px;
  color: #cbd5e1;
  font-size: 1rem;
}

.menu-buttons {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.menu-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: none;
  border-radius: 12px;
  padding: 16px 18px;
  font-size: 1.1rem;
  font-weight: 700;
  cursor: pointer;
  text-decoration: none;
  transition:
    transform 120ms ease,
    filter 120ms ease;
}

.menu-button.primary {
  background: #f59e0b;
  color: #111827;
}

.menu-button.secondary {
  background: #334155;
  color: #f8fafc;
}

.menu-button:hover,
.menu-button:focus-visible,
.menu-link:hover,
.menu-link:focus-visible {
  transform: translateY(-2px);
  filter: brightness(1.05);
}

.link-button {
  width: 100%;
}

.settings-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 8px;
}

.settings-panel {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 16px;
  background: #1e293b;
  border: 1px solid #334155;
  border-radius: 16px;
}

.settings-panel h2 {
  margin: 0 0 4px;
  font-size: 1.1rem;
}

.game-container {
  position: relative;
  width: 100%;
  max-width: 800px;
  aspect-ratio: 2 / 1;
  margin: 20px auto;
  overflow: hidden;
  background: #0f0f0f;
  border: 3px solid #2a1f10;
  touch-action: none; /* Prevents scrolling/zooming while playing */
}

.game-container {
  margin: 20px auto;
  border-radius: 24px;
}

/* UI layer sits above the canvas */
#uiLayer {
  position: absolute;
  inset: 0;
  z-index: 2;
  pointer-events: none;
}

/* Canvas and shell positioning */
canvas {
  display: block;
  position: absolute;
  top: 0;
  left: 0;
}

.top-bar {
  position: absolute;
  top: 0;
  left: 0;
  z-index: 3;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 18px;
  background: linear-gradient(to bottom, rgba(15, 23, 42, 0.92), rgba(15, 23, 42, 0));
}

.top-bar h1 {
  margin: 0;
  font-size: 1.25rem;
}

.menu-link {
  color: #93c5fd;
  text-decoration: none;
  font-weight: 700;
  transition:
    transform 120ms ease,
    filter 120ms ease;
}

/* Match the merged HTML id */
#game-canvas {
  position: absolute;
  inset: 0;

  width: 100%;
  height: 100%;

  display: block;
  background: #000;

  image-rendering: pixelated;
}

.settings-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin: 24px 0 32px;
  text-align: left;
}

.setting-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  background: #0f172a;
  border: 1px solid #334155;
  border-radius: 10px;
  padding: 12px 14px;
}

.setting-stack {
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 0.95rem;
}

.setting-stack input[type="text"] {
  width: 100%;
  border: 1px solid #475569;
  border-radius: 10px;
  padding: 10px 12px;
  background: #0f172a;
  color: #f8fafc;
}

.range-row {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 12px;
}

.range-row input[type="range"] {
  width: 100%;
}

.range-row output {
  min-width: 44px;
  text-align: right;
  color: #fde68a;
  font-weight: 700;
}

.settings-actions {
  display: flex;
  gap: 12px;
  flex-shrink: 0;
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid #334155;
  background: rgba(15, 23, 42, 0.94);
}

.settings-actions .menu-button {
  flex: 1;
}

@media (max-width: 480px) {
  .page {
    padding: 12px;
  }

  .settings-layout {
    grid-template-columns: 1fr;
  }

  .settings-actions {
    flex-direction: column;
  }
}

.floating-button {
  position: fixed;        /* Always stays visible on screen */
  top: 20px;              /* Distance from top of viewport */
  right: 20px;            /* Distance from right of viewport */
  z-index: 9999;          /* Above all other layers (shop, UI, canvas) */
  padding: 12px 24px;
  background-color: rgba(245, 158, 11, 0.9); /* match your primary menu button */
  color: #111827;
  border: none;
  border-radius: 12px;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  box-shadow: 0 4px 12px rgba(0,0,0,0.35);
  transition: transform 120ms ease, filter 120ms ease;
}

.floating-button:hover {
  transform: translateY(-2px);
  filter: brightness(1.05);
}

.canvas-button {
  position: absolute;   /* position relative to container */
  top: 10px;            /* distance from top of container */
  right: 10px;          /* distance from right */
  z-index: 10;          /* above UI and canvas */
  padding: 8px 16px;
  background-color: #f59e0b;
  color: #111827;
  border: none;
  border-radius: 10px;
  font-weight: 700;
  cursor: pointer;
  box-shadow: 0 4px 8px rgba(0,0,0,0.3);
  transition: transform 120ms ease, filter 120ms ease;
}

.canvas-button:hover {
  transform: translateY(-2px);
  filter: brightness(1.05);
}

#fastForwardBtn {
  right: 92px;
}

#fastForwardBtn[data-active="true"] {
  background-color: #22c55e;
  color: #052e16;
}

#spawnEnemyBtn {
  right: 174px;
}

.game-menu-overlay {
  position: absolute;
  inset: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: rgba(0, 0, 0, 0.66);
}

.game-menu-overlay[hidden] {
  display: none;
}

.game-menu-dialog {
  width: min(320px, 100%);
  padding: 24px;
  color: #f8fafc;
  background: #111827;
  border: 2px solid #f59e0b;
  border-radius: 8px;
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.38);
  text-align: center;
}

.game-menu-dialog h2 {
  margin: 0 0 8px;
  font-size: 1.6rem;
}

.game-menu-message {
  margin: 0 0 20px;
  color: #d1d5db;
}

.game-menu-actions {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.game-menu-button {
  border: none;
  border-radius: 8px;
  padding: 12px 14px;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  transition:
    transform 120ms ease,
    filter 120ms ease;
}

.game-menu-button.primary {
  background: #f59e0b;
  color: #111827;
}

.game-menu-button.secondary {
  background: #374151;
  color: #f8fafc;
}

.game-menu-button:hover,
.game-menu-button:focus-visible {
  transform: translateY(-2px);
  filter: brightness(1.05);
}

.settings-popup-overlay {
  position: fixed;
  inset: 0;
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 28px;
  background: rgba(0, 0, 0, 0.72);
}

.settings-popup-overlay[hidden] {
  display: none;
}

.settings-popup-panel {
  width: min(920px, 100%);
  max-height: calc(100vh - 56px);
  overflow: hidden;
  color: #f8fafc;
  background: #111827;
  border: 2px solid #f59e0b;
  border-radius: 8px;
  box-shadow: 0 18px 42px rgba(0, 0, 0, 0.45);
}

.in-game-settings-content {
  max-height: calc(100vh - 56px);
  min-height: 520px;
  padding: 30px 34px;
}

.settings-popup-title {
  margin: 0 0 8px;
  font-size: 1.8rem;
  line-height: 1.1;
}

.in-game-settings-content .settings-layout {
  grid-template-columns: 1fr 1fr;
  margin-bottom: 0;
  gap: 18px;
}

.in-game-settings-content .settings-panel {
  border-radius: 8px;
}

.in-game-settings-content .settings-panel h3 {
  margin: 0 0 4px;
  font-size: 1.05rem;
}

.in-game-settings-content .settings-actions {
  margin-top: 14px;
}

@media (max-width: 700px) {
  .in-game-settings-content {
    min-height: 0;
    padding: 20px;
  }

  .in-game-settings-content .settings-layout {
    grid-template-columns: 1fr;
  }
}