/* ==========================================================================
   GrabDealls — Reusable UI Components
   Buttons, product card, category card, badges, rating, toast, skeleton,
   carousel, breadcrumb, pagination, modal. Shared across every page.
   ========================================================================== */

/* --------------------------------------------------------------------------
   Buttons
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-2);
  font-family: var(--font-display);
  font-weight: var(--fw-semibold);
  font-size: var(--fs-base);
  line-height: 1;
  padding: var(--sp-3) var(--sp-5);
  border-radius: var(--r-md);
  border: 1.5px solid transparent;
  transition: background var(--transition), color var(--transition),
              border-color var(--transition), transform var(--transition);
  white-space: nowrap;
  user-select: none;
}
.btn:active { transform: translateY(1px); }
.btn svg { width: 18px; height: 18px; }

.btn--primary { background: var(--c-primary); color: #fff; }
.btn--primary:hover { background: var(--c-primary-dark); }

.btn--accent { background: var(--c-accent); color: #fff; }
.btn--accent:hover { background: var(--c-accent-dark); }

.btn--outline {
  background: transparent;
  color: var(--c-primary);
  border-color: var(--c-primary);
}
.btn--outline:hover { background: var(--c-primary); color: #fff; }

.btn--ghost { background: var(--c-bg-alt); color: var(--c-ink); }
.btn--ghost:hover { background: var(--c-line); }

.btn--light { background: #fff; color: var(--c-primary); }
.btn--light:hover { background: #f0f3ff; }

.btn--block { width: 100%; }
.btn--sm { padding: var(--sp-2) var(--sp-3); font-size: var(--fs-sm); }
.btn--lg { padding: var(--sp-4) var(--sp-6); font-size: var(--fs-md); }
.btn:disabled { opacity: .55; cursor: not-allowed; }

/* --------------------------------------------------------------------------
   Badges & pills
   -------------------------------------------------------------------------- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: var(--fs-xs);
  font-weight: var(--fw-semibold);
  padding: 3px var(--sp-2);
  border-radius: var(--r-sm);
  line-height: 1.4;
}
.badge--sale { background: var(--c-sale); color: #fff; }
.badge--new { background: var(--c-success); color: #fff; }
.badge--best { background: var(--c-primary); color: #fff; }
.badge--soft { background: var(--c-primary-tint); color: var(--c-primary); }
.badge--stock-in { background: #e7f6ee; color: var(--c-success); }
.badge--stock-low { background: #fef1e0; color: var(--c-warning); }
.badge--stock-out { background: #fdeaee; color: var(--c-sale); }

/* Angled discount "tag" — the brand's signature deal marker */
.discount-tag {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  background: var(--c-sale);
  color: #fff;
  font-family: var(--font-display);
  font-weight: var(--fw-bold);
  font-size: var(--fs-xs);
  padding: 4px var(--sp-2) 4px var(--sp-3);
  clip-path: polygon(10% 0, 100% 0, 100% 100%, 10% 100%, 0 50%);
}

/* --------------------------------------------------------------------------
   Rating stars
   -------------------------------------------------------------------------- */
.rating { display: inline-flex; align-items: center; gap: 2px; }
.rating__stars { position: relative; display: inline-block; line-height: 1; }
.rating__stars .base { color: var(--c-line); }
.rating__stars .fill {
  position: absolute; inset: 0;
  color: var(--c-star);
  overflow: hidden;
  white-space: nowrap;
}
.rating__stars svg { width: 15px; height: 15px; display: inline-block; }
.rating__value { font-size: var(--fs-sm); font-weight: var(--fw-semibold); margin-left: 3px; }
.rating__count { font-size: var(--fs-xs); color: var(--c-muted); margin-left: 2px; }

/* --------------------------------------------------------------------------
   Product card  (single reusable component)
   -------------------------------------------------------------------------- */
.product-card {
  position: relative;
  display: flex;
  flex-direction: column;
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  border-radius: var(--radius-card);
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
  height: 100%;
}
.product-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--c-primary-light);
}
.product-card__media {
  position: relative;
  aspect-ratio: 1 / 1;
  background: var(--c-bg-alt);
  overflow: hidden;
}
.product-card__media img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 300ms ease;
}
.product-card:hover .product-card__media img { transform: scale(1.05); }
.product-card--oos .product-card__media img { filter: grayscale(0.55) opacity(0.72); }
.product-card--oos:hover .product-card__media img { transform: none; }
.product-card__badges {
  position: absolute; top: var(--sp-2); left: var(--sp-2);
  display: flex; flex-direction: column; gap: var(--sp-1);
  z-index: 2;
}
.product-card__wish {
  position: absolute; top: var(--sp-2); right: var(--sp-2);
  width: 34px; height: 34px;
  display: grid; place-items: center;
  background: rgba(255,255,255,.92);
  border-radius: 50%;
  color: var(--c-ink-soft);
  box-shadow: var(--shadow-xs);
  transition: color var(--transition), background var(--transition);
  z-index: 2;
}
.product-card__wish svg { width: 18px; height: 18px; }
.product-card__wish:hover { color: var(--c-sale); }
.product-card__wish.is-active { color: var(--c-sale); }
.product-card__wish.is-active svg { fill: currentColor; }

.product-card__body {
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
  padding: var(--sp-4);
  flex: 1;
}
.product-card__cat { font-size: var(--fs-xs); color: var(--c-muted); text-transform: uppercase; letter-spacing: .04em; }
.product-card__title {
  font-family: var(--font-body);
  font-size: var(--fs-base);
  font-weight: var(--fw-semibold);
  color: var(--c-ink);
  line-height: 1.35;
  /* clamp to 2 lines to keep equal heights */
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  min-height: 2.7em;
}
.product-card__title:hover { color: var(--c-primary); }
.product-card__desc {
  font-size: var(--fs-xs);
  color: var(--c-muted);
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.product-card__price {
  display: flex; align-items: baseline; gap: var(--sp-2);
  margin-top: auto;
  padding-top: var(--sp-1);
}
.price-now { font-family: var(--font-display); font-size: var(--fs-md); font-weight: var(--fw-bold); color: var(--c-ink); }
.price-was { font-size: var(--fs-sm); color: var(--c-muted); text-decoration: line-through; }
.price-off { font-size: var(--fs-sm); font-weight: var(--fw-semibold); color: var(--c-success); }

.product-card__actions {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: var(--sp-2);
  margin-top: var(--sp-2);
}
.product-card__actions .btn { padding-inline: var(--sp-3); }

/* List layout variant (used on shop list toggle later) */
.product-card--list { flex-direction: row; }
.product-card--list .product-card__media { width: 200px; flex-shrink: 0; aspect-ratio: auto; }

/* --------------------------------------------------------------------------
   Carousel (horizontal scroll-snap)
   -------------------------------------------------------------------------- */
.carousel { position: relative; }
.carousel__track {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(240px, 1fr);
  gap: var(--sp-5);
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scroll-behavior: smooth;
  padding-bottom: var(--sp-3);
  scrollbar-width: thin;
}
.carousel__track > * { scroll-snap-align: start; }
.carousel__track::-webkit-scrollbar { height: 8px; }
.carousel__track::-webkit-scrollbar-thumb { background: var(--c-line); border-radius: var(--r-pill); }
.carousel__nav {
  position: absolute;
  top: -56px; right: 0;
  display: flex; gap: var(--sp-2);
}
.carousel__btn {
  width: 40px; height: 40px;
  display: grid; place-items: center;
  border: 1.5px solid var(--c-line);
  border-radius: 50%;
  background: #fff;
  color: var(--c-ink);
  transition: all var(--transition);
}
.carousel__btn:hover { background: var(--c-primary); color: #fff; border-color: var(--c-primary); }
.carousel__btn:disabled { opacity: .4; cursor: not-allowed; }

/* --------------------------------------------------------------------------
   Toast notifications
   -------------------------------------------------------------------------- */
.toast-region {
  position: fixed;
  right: var(--sp-5);
  bottom: var(--sp-5);
  z-index: var(--z-toast);
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
  width: min(360px, calc(100vw - 2rem));
}
.toast {
  display: flex;
  align-items: flex-start;
  gap: var(--sp-3);
  background: var(--c-ink);
  color: #fff;
  padding: var(--sp-3) var(--sp-4);
  border-radius: var(--r-md);
  box-shadow: var(--shadow-lg);
  transform: translateY(14px);
  opacity: 0;
  animation: toast-in 220ms ease forwards;
}
.toast.is-leaving { animation: toast-out 200ms ease forwards; }
.toast__icon { flex-shrink: 0; margin-top: 1px; }
.toast__icon svg { width: 20px; height: 20px; }
.toast--success { border-left: 4px solid var(--c-success); }
.toast--success .toast__icon { color: #4ade80; }
.toast--error { border-left: 4px solid var(--c-sale); }
.toast--error .toast__icon { color: #fb7185; }
.toast--info { border-left: 4px solid var(--c-primary-light); }
.toast__body { flex: 1; }
.toast__body strong { display: block; font-size: var(--fs-base); }
.toast__body span { font-size: var(--fs-sm); color: #d3daf0; }
.toast__close { color: #9aa4c4; font-size: 18px; line-height: 1; }
.toast__close:hover { color: #fff; }

@keyframes toast-in  { to { transform: none; opacity: 1; } }
@keyframes toast-out { to { transform: translateY(14px); opacity: 0; } }

/* --------------------------------------------------------------------------
   Loading skeletons
   -------------------------------------------------------------------------- */
.skeleton {
  position: relative;
  overflow: hidden;
  background: var(--c-line-soft);
  border-radius: var(--r-sm);
}
.skeleton::after {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,.7), transparent);
  transform: translateX(-100%);
  animation: shimmer 1.3s infinite;
}
@keyframes shimmer { 100% { transform: translateX(100%); } }
.skeleton-card { border: 1px solid var(--c-line); border-radius: var(--radius-card); overflow: hidden; }
.skeleton-card .sk-media { aspect-ratio: 1/1; }
.skeleton-card .sk-body { padding: var(--sp-4); display: flex; flex-direction: column; gap: var(--sp-2); }
.skeleton-card .sk-line { height: 12px; }
.skeleton-card .sk-line.short { width: 45%; }
.skeleton-card .sk-line.med { width: 70%; }

/* --------------------------------------------------------------------------
   Empty & error states
   -------------------------------------------------------------------------- */
.state {
  text-align: center;
  padding: var(--sp-8) var(--sp-4);
  max-width: 460px;
  margin-inline: auto;
}
.state__icon {
  width: 72px; height: 72px; margin: 0 auto var(--sp-4);
  display: grid; place-items: center;
  border-radius: 50%;
  background: var(--c-bg-alt);
  color: var(--c-muted);
}
.state__icon svg { width: 36px; height: 36px; }
.state h3 { font-size: var(--fs-lg); margin-bottom: var(--sp-2); }
.state p { color: var(--c-ink-soft); margin-bottom: var(--sp-5); }

/* --------------------------------------------------------------------------
   Breadcrumb
   -------------------------------------------------------------------------- */
.breadcrumb {
  display: flex; flex-wrap: wrap; align-items: center; gap: var(--sp-2);
  font-size: var(--fs-sm);
  color: var(--c-muted);
  padding-block: var(--sp-4);
}
.breadcrumb a:hover { color: var(--c-primary); }
.breadcrumb .sep { opacity: .5; }
.breadcrumb [aria-current="page"] { color: var(--c-ink); font-weight: var(--fw-medium); }

/* --------------------------------------------------------------------------
   Pagination
   -------------------------------------------------------------------------- */
.pagination { display: flex; align-items: center; justify-content: center; gap: var(--sp-1); margin-top: var(--sp-6); }
.pagination a, .pagination span {
  min-width: 40px; height: 40px;
  display: inline-flex; align-items: center; justify-content: center;
  border: 1px solid var(--c-line);
  border-radius: var(--r-sm);
  font-weight: var(--fw-medium);
  transition: all var(--transition);
}
.pagination a:hover { border-color: var(--c-primary); color: var(--c-primary); }
.pagination .is-active { background: var(--c-primary); border-color: var(--c-primary); color: #fff; }

/* --------------------------------------------------------------------------
   Modal (generic)
   -------------------------------------------------------------------------- */
.modal-backdrop {
  position: fixed; inset: 0;
  background: rgba(14,31,87,.5);
  z-index: var(--z-modal);
  display: grid; place-items: center;
  padding: var(--sp-4);
  opacity: 0; visibility: hidden;
  transition: opacity var(--transition), visibility var(--transition);
}
.modal-backdrop.is-open { opacity: 1; visibility: visible; }
.modal {
  background: #fff;
  border-radius: var(--r-lg);
  width: min(480px, 100%);
  box-shadow: var(--shadow-lg);
  transform: scale(.96);
  transition: transform var(--transition);
}
.modal-backdrop.is-open .modal { transform: none; }
.modal__head { display: flex; align-items: center; justify-content: space-between; padding: var(--sp-5); border-bottom: 1px solid var(--c-line); }
.modal__body { padding: var(--sp-5); }
.modal__foot { display: flex; justify-content: flex-end; gap: var(--sp-2); padding: var(--sp-5); border-top: 1px solid var(--c-line); }

/* --------------------------------------------------------------------------
   Sticky mobile add-to-cart bar (product page, shown on small screens)
   -------------------------------------------------------------------------- */
.sticky-cta { display: none; }