/* ═════════════════════════════════════════════════════════════════════════
   UNIVERSAL COMMERCE CART & CHECKOUT — LUXURY GLASSMORPHISM STYLES
   ═════════════════════════════════════════════════════════════════════════ */
:root {
  --u-cart-primary: #10b981;
  --u-cart-primary-hover: #059669;
  --u-cart-bg: #0b0f19;
  --u-cart-card: #121826;
  --u-cart-border: rgba(255, 255, 255, 0.1);
  --u-cart-text: #f8fafc;
  --u-cart-muted: #94a3b8;
  --u-cart-gold: #c99700;
  --u-cart-font: system-ui, -apple-system, sans-serif;
}

/* Backdrop */
.u-cart-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(8px);
  z-index: 99998;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}
.u-cart-backdrop.active {
  opacity: 1;
  pointer-events: auto;
}

/* Cart Drawer */
.u-cart-drawer {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: 100%;
  max-width: 460px;
  background: var(--u-cart-bg);
  border-left: 1px solid var(--u-cart-border);
  box-shadow: -10px 0 30px rgba(0, 0, 0, 0.7);
  z-index: 99999;
  display: flex;
  flex-direction: column;
  transform: translateX(100%);
  transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  font-family: var(--u-cart-font);
  color: var(--u-cart-text);
}
.u-cart-drawer.active {
  transform: translateX(0);
}

/* Header */
.u-cart-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  border-bottom: 1px solid var(--u-cart-border);
  background: var(--u-cart-card);
}
.u-cart-header h3 {
  margin: 0;
  font-size: 18px;
  display: flex;
  align-items: center;
  gap: 8px;
  color: #fff;
}
.u-cart-close {
  background: transparent;
  border: none;
  color: var(--u-cart-muted);
  font-size: 24px;
  cursor: pointer;
  line-height: 1;
  padding: 4px;
}
.u-cart-close:hover {
  color: #fff;
}

/* Body */
.u-cart-body {
  flex: 1;
  overflow-y: auto;
  padding: 24px;
}

/* Items List */
.u-cart-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px;
  background: var(--u-cart-card);
  border: 1px solid var(--u-cart-border);
  border-radius: 10px;
  margin-bottom: 12px;
}
.u-cart-item-info h4 {
  margin: 0 0 4px 0;
  font-size: 15px;
}
.u-cart-item-info span {
  font-size: 14px;
  color: var(--u-cart-primary);
  font-weight: bold;
}
.u-cart-remove {
  background: transparent;
  border: none;
  color: #ef4444;
  cursor: pointer;
  font-size: 13px;
}

/* Order Bump Component */
.u-cart-bump {
  background: rgba(201, 151, 0, 0.08);
  border: 1px dashed var(--u-cart-gold);
  border-radius: 10px;
  padding: 14px;
  margin: 18px 0;
  cursor: pointer;
  display: flex;
  gap: 12px;
  align-items: flex-start;
}
.u-cart-bump input[type="checkbox"] {
  margin-top: 4px;
  accent-color: var(--u-cart-gold);
  width: 18px;
  height: 18px;
  cursor: pointer;
}
.u-cart-bump-text {
  font-size: 13px;
  line-height: 1.4;
}
.u-cart-bump-tag {
  background: var(--u-cart-gold);
  color: #000;
  font-size: 10px;
  font-weight: bold;
  padding: 2px 6px;
  border-radius: 4px;
  display: inline-block;
  margin-bottom: 4px;
}

/* Gateway Tabs */
.u-cart-tabs {
  display: flex;
  gap: 8px;
  margin-top: 16px;
}
.u-cart-tab {
  flex: 1;
  padding: 10px;
  text-align: center;
  font-size: 12px;
  font-weight: 600;
  background: var(--u-cart-card);
  border: 1px solid var(--u-cart-border);
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s;
  color: var(--u-cart-muted);
}
.u-cart-tab.active {
  background: var(--u-cart-primary);
  color: #fff;
  border-color: var(--u-cart-primary);
}

/* Summary / Footer */
.u-cart-footer {
  padding: 20px 24px;
  background: var(--u-cart-card);
  border-top: 1px solid var(--u-cart-border);
}
.u-cart-row {
  display: flex;
  justify-content: space-between;
  margin-bottom: 8px;
  font-size: 14px;
  color: var(--u-cart-muted);
}
.u-cart-row.u-cart-total {
  font-size: 18px;
  font-weight: bold;
  color: #fff;
  border-top: 1px solid var(--u-cart-border);
  padding-top: 10px;
  margin-top: 10px;
}
.u-cart-checkout-btn {
  width: 100%;
  padding: 14px;
  background: var(--u-cart-primary);
  color: #fff;
  border: none;
  border-radius: 8px;
  font-size: 16px;
  font-weight: bold;
  cursor: pointer;
  margin-top: 12px;
  transition: background 0.2s;
}
.u-cart-checkout-btn:hover {
  background: var(--u-cart-primary-hover);
}
.u-cart-legal {
  font-size: 11px;
  color: #64748b;
  text-align: center;
  margin-top: 12px;
}