/* ==========================================================================
   FIRKEE ACCESSORIES — Portfolio Page Styles
   Header, stats bar, filter tabs, masonry grid, featured, CTA
   ========================================================================== */

/* --- Page Header --- */
.portfolio-header {
  background: var(--color-ivory);
  padding: calc(var(--nav-height) + var(--section-pad)) var(--side-pad) var(--section-pad);
  text-align: center;
}

.portfolio-header__inner {
  max-width: var(--max-width-narrow);
  margin: 0 auto;
}

.portfolio-header .section-label {
  justify-content: center;
  margin-bottom: 32px;
}

.portfolio-header__subtitle {
  font-family: var(--font-body);
  font-size: clamp(15px, 2vw, 18px);
  font-weight: 400;
  line-height: 1.7;
  color: var(--color-warm-gray);
  max-width: 560px;
  margin: 24px auto 0;
}

/* --- Stats Bar --- */
.stats-bar {
  background: var(--color-cream);
  border-top: 2px solid var(--color-gold);
  padding: 32px var(--side-pad);
}

.stats-bar__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 48px;
}

.stats-bar__item {
  display: flex;
  align-items: baseline;
  gap: 6px;
  flex-wrap: wrap;
  justify-content: center;
}

.stats-bar__number {
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 300;
  color: var(--color-charcoal);
  line-height: 1;
}

.stats-bar__plus {
  font-family: var(--font-display);
  font-size: clamp(18px, 2.5vw, 28px);
  font-weight: 300;
  color: var(--color-gold);
  line-height: 1;
}

.stats-bar__label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-warm-gray);
  margin-left: 4px;
}

.stats-bar__divider {
  width: 1px;
  height: 32px;
  background: var(--color-sand);
  opacity: 0.5;
  flex-shrink: 0;
}

/* --- Filter Bar --- */
.filter-bar {
  background: var(--color-ivory);
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
  position: sticky;
  top: var(--nav-height);
  z-index: 100;
  transition: box-shadow 0.3s;
}

.filter-bar.is-stuck {
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
}

.filter-bar__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 16px var(--side-pad);
  overflow-x: auto;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}

.filter-bar__inner::-webkit-scrollbar {
  display: none;
}

.filter-bar__tab {
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-warm-gray);
  background: none;
  border: none;
  padding: 10px 20px;
  cursor: pointer;
  position: relative;
  white-space: nowrap;
  transition: color 0.3s;
  flex-shrink: 0;
}

.filter-bar__tab::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 2px;
  background: var(--color-gold);
  transition: width 0.4s var(--ease-out-expo);
}

.filter-bar__tab:hover {
  color: var(--color-charcoal);
}

.filter-bar__tab.is-active {
  color: var(--color-charcoal);
}

.filter-bar__tab.is-active::after {
  width: 100%;
}

/* --- Portfolio Grid (Masonry via CSS columns) --- */
.portfolio-grid {
  background: var(--color-ivory);
  padding: 48px var(--side-pad) var(--section-pad);
}

.portfolio-grid__inner {
  max-width: var(--max-width-wide);
  margin: 0 auto;
  columns: 3;
  column-gap: 24px;
}

/* --- Portfolio Card --- */
.portfolio-card {
  break-inside: avoid;
  margin-bottom: 24px;
  border-radius: 4px;
  overflow: hidden;
  background: var(--color-cream);
  transition: transform 0.5s var(--ease-out-expo),
              box-shadow 0.5s var(--ease-out-expo),
              border-color 0.5s;
  border: 1px solid transparent;
  opacity: 1;
  transform: translateY(0);
}

.portfolio-card.is-hiding {
  opacity: 0;
  transform: translateY(16px) scale(0.97);
  transition: opacity 0.3s var(--ease-out-expo),
              transform 0.3s var(--ease-out-expo);
}

.portfolio-card.is-showing {
  animation: cardShow 0.5s var(--ease-out-expo) forwards;
}

@keyframes cardShow {
  from {
    opacity: 0;
    transform: translateY(24px) scale(0.97);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.portfolio-card.is-hidden {
  display: none;
}

.portfolio-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.1);
  border-color: var(--color-gold-light);
}

.portfolio-card__image {
  overflow: hidden;
}

/* Aspect ratio variations for masonry effect */
.portfolio-card--tall .portfolio-card__image {
  aspect-ratio: 3 / 4;
}

.portfolio-card--square .portfolio-card__image {
  aspect-ratio: 1 / 1;
}

.portfolio-card--wide .portfolio-card__image {
  aspect-ratio: 4 / 3;
}

.portfolio-card__image .placeholder-shoe {
  transition: transform 0.6s var(--ease-out-expo);
}

/* Category-specific gradients — warm tones for leather/natural, cool for structured/evening */
.portfolio-card[data-category="flats"] .placeholder-shoe {
  background: linear-gradient(145deg, #3b3028 0%, #4a3d30 40%, #2e2520 100%);
}
.portfolio-card[data-category="flats"] .placeholder-shoe svg {
  color: #c4a882;
}

.portfolio-card[data-category="sandals"] .placeholder-shoe {
  background: linear-gradient(145deg, #352d24 0%, #443828 40%, #2a2218 100%);
}
.portfolio-card[data-category="sandals"] .placeholder-shoe svg {
  color: #d4b896;
}

.portfolio-card[data-category="mules"] .placeholder-shoe {
  background: linear-gradient(145deg, #382e2a 0%, #483c32 40%, #2c241e 100%);
}
.portfolio-card[data-category="mules"] .placeholder-shoe svg {
  color: #c8a878;
}

.portfolio-card[data-category="heeled"] .placeholder-shoe {
  background: linear-gradient(145deg, #282a34 0%, #343848 40%, #1e2030 100%);
}
.portfolio-card[data-category="heeled"] .placeholder-shoe svg {
  color: #a0a8c4;
}

.portfolio-card[data-category="boots"] .placeholder-shoe {
  background: linear-gradient(145deg, #252530 0%, #30323e 40%, #1a1c28 100%);
}
.portfolio-card[data-category="boots"] .placeholder-shoe svg {
  color: #8890a8;
}

.portfolio-card[data-category="embellished"] .placeholder-shoe {
  background: linear-gradient(145deg, #342228 0%, #44303a 40%, #281822 100%);
}
.portfolio-card[data-category="embellished"] .placeholder-shoe svg {
  color: #c89898;
}

.portfolio-card:hover .portfolio-card__image .placeholder-shoe {
  transform: scale(1.03);
}

.portfolio-card__info {
  padding: 16px 20px 20px;
}

.portfolio-card__tag {
  display: inline-block;
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-gold);
  margin-bottom: 6px;
}

.portfolio-card__name {
  font-family: var(--font-display);
  font-size: clamp(18px, 2vw, 22px);
  font-weight: 400;
  color: var(--color-charcoal);
  line-height: 1.3;
}

.portfolio-card__desc {
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 400;
  line-height: 1.5;
  color: var(--color-warm-gray);
  margin-top: 4px;
}

/* --- Featured Collection --- */
.featured-collection {
  background: var(--color-cream);
  padding: var(--section-pad) 0;
  overflow: hidden;
}

.featured-collection__header {
  padding: 0 var(--side-pad);
  max-width: var(--max-width);
  margin: 0 auto clamp(32px, 5vw, 56px);
}

.featured-card {
  border-radius: 4px;
  overflow: hidden;
  background: var(--color-ivory);
  transition: transform 0.5s var(--ease-out-expo),
              box-shadow 0.5s var(--ease-out-expo);
}

.featured-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.1);
}

.featured-card__image {
  aspect-ratio: 4 / 3;
  overflow: hidden;
}

.featured-card__image .placeholder-shoe {
  transition: transform 0.6s var(--ease-out-expo);
}

.featured-card:hover .featured-card__image .placeholder-shoe {
  transform: scale(1.03);
}

.featured-card__info {
  padding: 20px 24px 24px;
}

.featured-card__name {
  font-family: var(--font-display);
  font-size: clamp(20px, 2.5vw, 26px);
  font-weight: 400;
  color: var(--color-charcoal);
  line-height: 1.3;
  margin-bottom: 6px;
}

.featured-card__season {
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-gold);
}

/* --- CTA Section --- */
.portfolio-cta {
  background: var(--color-charcoal);
  padding: var(--section-pad) var(--side-pad);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.portfolio-cta::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: var(--grain);
  background-size: 200px;
  opacity: 0.4;
  pointer-events: none;
}

.portfolio-cta__inner {
  max-width: var(--max-width-narrow);
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.portfolio-cta__title {
  font-family: var(--font-display);
  font-size: clamp(32px, 5vw, 56px);
  font-weight: 300;
  line-height: 1.15;
  color: var(--color-cream);
  margin-bottom: 24px;
}

.portfolio-cta__title em {
  font-style: italic;
  font-weight: 400;
  color: var(--color-gold);
}

.portfolio-cta__text {
  font-size: clamp(15px, 2vw, 18px);
  font-weight: 400;
  line-height: 1.7;
  color: var(--color-sand);
  margin-bottom: 40px;
}

.portfolio-cta .btn--primary {
  background: var(--color-gold);
  color: var(--color-charcoal);
}

.portfolio-cta .btn--primary:hover {
  background: var(--color-cream);
  color: var(--color-charcoal);
}

/* --- Responsive --- */

/* Tablet */
@media (max-width: 1024px) {
  .portfolio-grid__inner {
    columns: 2;
    column-gap: 20px;
  }
}

/* Mobile */
@media (max-width: 768px) {
  .portfolio-header {
    padding-top: calc(var(--nav-height) + 48px);
    padding-bottom: 48px;
  }

  .stats-bar__inner {
    gap: 24px;
  }

  .stats-bar__divider {
    height: 24px;
  }

  .filter-bar__inner {
    justify-content: flex-start;
    gap: 4px;
    padding: 12px var(--side-pad);
  }

  .filter-bar__tab {
    padding: 10px 16px;
    font-size: 11px;
    min-height: 44px;
  }

  .portfolio-grid__inner {
    columns: 1;
    column-gap: 0;
  }

  .portfolio-card {
    margin-bottom: 20px;
  }

  .portfolio-cta__title {
    font-size: clamp(28px, 7vw, 40px);
  }
}

/* Small mobile */
@media (max-width: 480px) {
  .stats-bar__inner {
    flex-direction: column;
    gap: 16px;
  }

  .stats-bar__divider {
    width: 40px;
    height: 1px;
  }

  .stats-bar__item {
    gap: 4px;
  }

  .portfolio-header__subtitle {
    font-size: 14px;
  }
}

/* --- Print --- */
@media print {
  .filter-bar,
  .portfolio-cta::before {
    display: none !important;
  }

  .portfolio-card {
    break-inside: avoid;
    page-break-inside: avoid;
  }

  .portfolio-grid__inner {
    columns: 2;
  }
}

/* Case Studies */
.case-studies {
  background: var(--color-ivory);
  padding: var(--section-pad) var(--side-pad);
}
.case-studies__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 48px;
  margin-top: 48px;
}
.case-study {
  background: white;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 2px 20px rgba(0,0,0,0.06);
}
.case-study .photo-placeholder {
  border: none;
  border-radius: 0;
}
.case-study__content {
  padding: 32px;
}
.case-study__tag {
  font-family: var(--font-body);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--color-gold);
}
.case-study__title {
  font-family: var(--font-display);
  font-size: 1.5rem;
  color: var(--color-charcoal);
  margin: 8px 0 16px;
}
.case-study__text {
  font-family: var(--font-body);
  font-size: 0.9rem;
  color: #555;
  line-height: 1.7;
  margin-bottom: 24px;
}
.case-study__stats {
  list-style: none;
  padding: 0;
  display: flex;
  gap: 32px;
}
.case-study__stats li {
  font-family: var(--font-body);
  font-size: 0.8rem;
  color: #777;
}
.case-study__stats strong {
  display: block;
  font-family: var(--font-display);
  font-size: 1.8rem;
  color: var(--color-charcoal);
  font-weight: 600;
}

@media (max-width: 768px) {
  .case-studies__grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .case-study__stats {
    flex-wrap: wrap;
    gap: 20px;
  }
  .case-study__content {
    padding: 24px;
  }
}

@media (max-width: 480px) {
  .case-study__stats {
    flex-direction: column;
    gap: 16px;
  }
}