/* ════════════════════════════════════════════════════
   KachaBazar — UI Components
   Reusable components used across ALL pages.
   ════════════════════════════════════════════════════ */

/* ── Buttons ─────────────────────────────────────── */
.kbz-btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: var(--space-2); height: 40px; padding: 0 var(--space-4);
  border-radius: var(--radius-base); font-size: 0.875rem; font-weight: 600;
  line-height: 1; white-space: nowrap; cursor: pointer;
  border: 1.5px solid transparent;
  transition: background var(--t-fast), border-color var(--t-fast), color var(--t-fast), transform var(--t-fast);
  text-decoration: none;
}
.kbz-btn:active { transform: scale(.97); }
.kbz-btn--primary { background: var(--color-primary); color: white; border-color: var(--color-primary); }
.kbz-btn--primary:hover { background: var(--color-primary-hover); border-color: var(--color-primary-hover); color: white; }
.kbz-btn--outline { background: transparent; color: var(--color-primary); border-color: var(--color-primary); }
.kbz-btn--outline:hover { background: var(--color-primary); color: white; }
.kbz-btn--dark { background: var(--color-gray-900); color: white; border-color: var(--color-gray-900); }
.kbz-btn--dark:hover { background: var(--color-gray-700); border-color: var(--color-gray-700); color: white; }
.kbz-btn--ghost { background: transparent; color: var(--color-text-secondary); border-color: var(--color-border); }
.kbz-btn--ghost:hover { background: var(--color-bg-muted); color: var(--color-text-primary); }
.kbz-btn--sm   { height: 32px; padding: 0 var(--space-3); font-size: 0.75rem; }
.kbz-btn--lg   { height: 48px; padding: 0 var(--space-6); font-size: 1rem; }
.kbz-btn--xl   { height: 56px; padding: 0 var(--space-8); font-size: 1.125rem; }
.kbz-btn--full { width: 100%; }
.kbz-btn--pill { border-radius: var(--radius-full); }
.kbz-btn--icon { width: 40px; padding: 0; border-radius: var(--radius-md); }

/* ── Skeleton / Shimmer ──────────────────────────── */
.kbz-skeleton {
  background: linear-gradient(90deg,#e5e7eb 25%,#f3f4f6 50%,#e5e7eb 75%);
  background-size: 200% 100%;
  animation: kbz-shimmer 1.5s infinite;
  border-radius: var(--radius-base);
}
@keyframes kbz-shimmer { 0%{background-position:200% 0} 100%{background-position:-200% 0} }

/* ── Toast Notifications ─────────────────────────── */
.kbz-toast-container {
  position: fixed;
  top: calc(var(--header-height) + var(--subnav-height) + 12px);
  right: var(--space-4);
  z-index: var(--z-toast);
  display: flex; flex-direction: column; gap: var(--space-2); max-width: 360px;
}
.kbz-toast {
  display: flex; align-items: center; gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-lg); box-shadow: var(--shadow-lg);
  font-size: 0.8125rem; font-weight: 500;
  animation: kbz-toast-in .3s cubic-bezier(.34,1.56,.64,1) forwards;
}
.kbz-toast--success { background: var(--color-success); color: white; }
.kbz-toast--info    { background: var(--color-primary);  color: white; }
.kbz-toast--error   { background: var(--color-danger);   color: white; }
@keyframes kbz-toast-in { from{opacity:0;transform:translateX(40px)} to{opacity:1;transform:translateX(0)} }

/* ── Cart Drawer ─────────────────────────────────── */
.kbz-drawer-overlay {
  position: fixed; inset: 0; background: rgba(0,0,0,.4);
  z-index: var(--z-overlay); opacity: 0; pointer-events: none; transition: opacity var(--t-slow);
}
.kbz-drawer-overlay.open { opacity: 1; pointer-events: all; }
.kbz-cart-drawer {
  position: fixed; top: 0; right: 0; bottom: 0; width: 380px; max-width: 100vw;
  background: white; box-shadow: var(--shadow-xl);
  z-index: var(--z-modal); display: flex; flex-direction: column;
  transform: translateX(100%); transition: transform var(--t-slow);
}
.kbz-cart-drawer.open { transform: translateX(0); }
.kbz-cart-drawer__head {
  padding: var(--space-5) var(--space-6); border-bottom: 1px solid var(--color-border);
  display: flex; align-items: center; justify-content: space-between;
}
.kbz-cart-drawer__close {
  width: 32px; height: 32px; display: flex; align-items: center; justify-content: center;
  border-radius: 50%; color: var(--color-text-muted); transition: background var(--t-fast);
  border: none; background: none; cursor: pointer;
}
.kbz-cart-drawer__close:hover { background: var(--color-bg-muted); }
.kbz-cart-drawer__body { flex: 1; overflow-y: auto; padding: var(--space-4) var(--space-6); }
.kbz-cart-drawer__foot {
  padding: var(--space-5) var(--space-6); border-top: 1px solid var(--color-border);
  background: var(--color-bg-surface);
}
.kbz-cart-item { display: flex; gap: var(--space-3); padding: 14px 0; border-bottom: 1px solid var(--color-border); }
.kbz-cart-item:last-child { border-bottom: none; }
.kbz-cqs { display: flex; align-items: center; gap: var(--space-2); }
.kbz-cqs-btn {
  width: 24px; height: 24px; border-radius: 50%; border: 1px solid var(--color-border);
  background: white; display: flex; align-items: center; justify-content: center;
  cursor: pointer; font-size: 14px; color: var(--color-text-secondary);
  transition: border-color var(--t-fast), color var(--t-fast);
}
.kbz-cqs-btn:hover { border-color: var(--color-primary); color: var(--color-primary); }