/* Isolated Cart Drawer Overlay */
.cart-overlay-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
  z-index: 99999;
  display: flex;
  justify-content: flex-end;
  opacity: 1;
  transition: opacity 0.2s ease;
}

.cart-overlay-backdrop.hidden {
  display: none !important;
}

.cart-overlay-panel {
  width: 400px;
  max-width: 100%;
  height: 100%;
  background-color: var(--bg-surface, #22272e);
  border-left: 1px solid var(--border-subtle, #373e47);
  box-shadow: -10px 0 30px rgba(0, 0, 0, 0.4);
  display: flex;
  flex-direction: column;
  padding: 1.5rem;
  box-sizing: border-box;
}

.cart-overlay-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--border-subtle, #373e47);
  padding-bottom: 1rem;
}

.cart-overlay-header h3 {
  margin: 0;
  color: var(--text-main, #e6edf3);
  font-size: 1.1rem;
}

.cart-close-btn {
  background: transparent;
  border: none;
  color: var(--text-muted, #919bA1);
  font-size: 1.25rem;
  cursor: pointer;
}

.cart-close-btn:hover {
  color: var(--sky-blue, #88c0d0);
}

.cart-overlay-body {
  flex: 1;
  padding: 1rem 0;
  overflow-y: auto;
}

.cart-overlay-footer {
  border-top: 1px solid var(--border-subtle, #373e47);
  padding-top: 1rem;
}

/* Scaled-up, prominent checkout button inside cart footer */
.cart-overlay-footer button,
#checkout-btn,
.cart-checkout-btn {
  width: 100%;
  padding: 0.85rem 1.25rem;
  font-size: 1.05rem;
  font-weight: 600;
  background-color: var(--sky-blue, #87ceeb);
  color: #000;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.2s ease;
}

.cart-overlay-footer button:hover,
#checkout-btn:hover,
.cart-checkout-btn:hover {
  opacity: 0.9;
}