/* =========================
   LAYER SYSTEM (GLOBAL RULES)
========================= */

#game-canvas {
  z-index: 1;
}

#uiLayer {
  position: absolute;
  inset: 0;
  z-index: 10;
  pointer-events: none;
}

/* Shop UI sits above UI layer */
#top-bar,
#shop-wrapper,
#shop {
  position: relative;
  z-index: 20;
}

/* Main menu / in-game buttons ALWAYS on top */
.canvas-button {
  z-index: 999;
}

/* =========================
   TOP BAR (CENTERED PvZ STYLE)
========================= */

#top-bar {
  display: flex;
  align-items: center;
  justify-content: center;

  padding: 5px;

  position: absolute;
  top: 0;
  left: 0;
  width: 100%;

  background: #3b2f1c;
  border-bottom: 4px solid #2a1f10;

  box-sizing: border-box;
}

/* =========================
   CURRENCY DISPLAY
========================= */

#currency {
  display: flex;
  align-items: center;
  gap: 8px;

  color: #fff8c6;
  font-size: 18px;

  background: #5a3d1e;
  padding: 4px 10px;

  border-radius: 8px;
  border: 2px solid #2a1f10;

  margin-right: 15px;
}

/* =========================
   SHOP WRAPPER
========================= */

#shop-wrapper {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
}

/* =========================
   SHOP CONTAINER
========================= */

#shop {
  display: flex;
  flex-direction: row;
  gap: 8px;

  padding: 4px;

  background: #6b4f2a;
  border-radius: 10px;
  border: 3px solid #2a1f10;

  flex-wrap: nowrap;

  max-width: fit-content;
}

.tool-card {
  min-width: 72px;
  width: 72px;
  height: 72px;
  padding: 0;

  background: transparent;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;

  box-shadow: none;
  transition: transform 0.15s ease, filter 0.15s ease, box-shadow 0.15s ease;
}

.tool-card-image {
  width: 72px;
  height: 72px;
  object-fit: cover;
  border-radius: 50%;
  pointer-events: none;
}

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

.tool-card.selected-tool,
.card.selected-tool {
  box-shadow: 0 0 0 4px rgba(255, 245, 157, 0.6);
  filter: brightness(1.08);
}

/* =========================
   CHICKEN CARDS
========================= */

.card {
  width: 65px;
  height: 85px;

  background: #d2b48c;
  border-radius: 6px;

  position: relative;

  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;

  box-shadow: inset 0 0 5px rgba(0, 0, 0, 0.5);

  cursor: pointer;
  user-select: none;
  touch-action: none;

  transition: transform 0.15s ease, filter 0.15s ease;
}

.card > * {
  position: relative;
  z-index: 1;
}

.card:hover {
  transform: scale(1.05);
  filter: brightness(1.08);
}

.card:active {
  transform: scale(0.98);
}

.card img {
  width: 50px;
  height: 50px;
}

.cooldown-overlay {
  position: absolute;
  inset: 0;
  z-index: 2;
  background: rgba(85, 85, 85, 0.58);
  transform-origin: top center;
  transform: scaleY(0);
  pointer-events: none;
}

.cooldown-text {
  position: absolute;
  right: 4px;
  bottom: 4px;
  z-index: 3;
  min-width: 28px;
  padding: 1px 4px;
  border-radius: 4px;
  background: rgba(0, 0, 0, 0.72);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  text-align: center;
  pointer-events: none;
}

.cost {
  position: absolute;
  top: 2px;
  left: 4px;

  background: black;
  color: #ffd700;
  font-size: 12px;

  padding: 1px 4px;
  border-radius: 4px;
}

.name {
  font-size: 10px;
  color: #222;
  margin-top: 1px;
  text-align: center;
  font-weight: bold;
}

/* Disabled state */
.card.disabled {
  cursor: not-allowed;
  filter: grayscale(0.7) brightness(0.75);
}

.card.cooldown-active {
  filter: none;
}

/* Prevent drag interference */
.name,
.cost {
  pointer-events: none;
}

/* Ensure shop receives input */
#shop-wrapper,
#shop,
.card {
  pointer-events: auto;
}

/* =========================
   FLOATING MENU BUTTON (outside canvas)
========================= */

.floating-button {
  position: fixed;
  top: 20px;
  right: 20px;

  z-index: 9999;

  padding: 12px 24px;

  background-color: rgba(245, 158, 11, 0.9);
  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-ATTACHED BUTTON
========================= */

.canvas-button {
  position: absolute;
  top: 10px;
  right: 10px;

  z-index: 999;

  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);
}