.collections-hero {
  padding: clamp(6rem, 12vh, 10rem) var(--space-lg) clamp(4rem, 10vh, 7rem);
  background: radial-gradient(
      120% 80% at 50% 0%,
      rgba(184, 164, 106, 0.06),
      transparent 60%
    ),
    var(--color-bg-primary);
}

.collections-hero-inner {
  max-width: 860px;
  margin: 0 auto;
  text-align: center;
}

.collections-title {
  font-family: var(--font-serif);
  font-size: clamp(2.75rem, 6vw, 4rem);
  line-height: 1.05;
  letter-spacing: -0.03em;

  margin-bottom: var(--space-xl);
}

.collections-title span {
  display: block;
  font-size: var(--text-sm);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--color-text-tertiary);
  margin-bottom: var(--space-xs);
}

.collections-divider {
  width: 120px;
  height: 1px;

  background: linear-gradient(
    to right,
    transparent,
    var(--color-accent-gold),
    transparent
  );

  margin: 0 auto var(--space-2xl);
  opacity: 0.7;
}

.collections-intro {
  font-size: clamp(1rem, 2.2vw, 1.125rem);
  line-height: var(--leading-loose);
  color: var(--color-text-secondary);

  max-width: 640px;
  margin: 0 auto;
}

/* COLLECTION FILTERS */
.collections-filters {
  position: sticky;
  top: 72px; /* aligns under navbar */
  z-index: var(--z-overlay);

  padding: var(--space-lg) var(--space-lg);
  background: linear-gradient(
      to bottom,
      rgba(15, 17, 16, 0.96),
      rgba(15, 17, 16, 0.9)
    );
  backdrop-filter: blur(6px);

  border-top: var(--border-thin);
  border-bottom: var(--border-thin);
}

.filters-inner {
  max-width: var(--container-max);
  margin: 0 auto;

  display: grid;
  grid-template-columns: repeat(5, minmax(140px, 1fr));
  gap: var(--space-lg);
  align-items: end;
}

.filter-group {
  position: relative;
  display: flex;
  flex-direction: column;
}


.filter-group label {
  font-family: var(--font-serif);
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-text-tertiary);
  margin-bottom: var(--space-xs);
}

.filter-group select {
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;

  outline: none;
  box-shadow: none;
  border-radius: 0;

  background-clip: padding-box;

  background:
    linear-gradient(
      to bottom,
      rgba(255,255,255,0.03),
      rgba(255,255,255,0)
    ) !important;

  border: 1px solid var(--color-state-border);
  padding: 0.65rem 2.25rem 0.65rem 0.75rem;

  color: var(--color-text-primary);
  font-size: var(--text-sm);
  font-family: var(--font-sans);

  cursor: pointer;
  transition:
    border-color var(--duration-fast),
    background var(--duration-fast);
}


.filter-group select:hover {
  border-color: var(--color-accent-gold);
}

.filter-group select:focus {
    outline: none !important;
    border-color: var(--color-accent-gold);
    background: linear-gradient(
        to bottom,
        rgba(255,255,255,0.04),
        rgba(255,255,255,0.01)
    ) !important;
}

/* GRID SECTION */
.artwork-grid-section {
  padding: var(--space-3xl) var(--space-lg) var(--space-4xl);
  background: var(--color-bg-primary);
}

.artwork-grid {
  max-width: var(--container-max);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--grid-gap-lg);
}

.art-card {
  position: relative;
  transition:
    transform var(--duration-medium) var(--ease-gentle),
    box-shadow var(--duration-medium) var(--ease-gentle);
}

.art-card:hover {
  transform: translateY(-8px);
}

.art-image {
  position: relative;
  overflow: hidden;
  margin-bottom: var(--space-md);
}

.art-image::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to top,
    rgba(15,17,16,0.55),
    rgba(15,17,16,0)
  );
  opacity: 0;
  transition: opacity var(--duration-medium) var(--ease-gentle);
}

.art-card:hover .art-image::after {
  opacity: 1;
}

.add-to-cart {
  position: absolute;
  top: var(--space-sm);
  right: var(--space-sm);

  width: 40px;
  height: 40px;
  border-radius: 50%;

  background: rgba(15,17,16,0.85);
  border: var(--border-thin);
  color: var(--color-text-primary);

  display: flex;
  align-items: center;
  justify-content: center;

  cursor: pointer;
  opacity: 0;
  transform: translateY(-6px);
  transition:
    opacity var(--duration-medium) var(--ease-gentle),
    transform var(--duration-medium) var(--ease-gentle),
    border-color var(--duration-fast);
  z-index: 5;
}

.art-card:hover .add-to-cart {
  opacity: 1;
  transform: translateY(0);
}

.add-to-cart:hover {
  border-color: var(--color-accent-gold);
  color: var(--color-accent-gold);
}


.art-image img {
  width: 100%;
  height: 420px;
  object-fit: cover;
  transition: transform 1s ease;
}

.art-card:hover .art-image img {
  transform: scale(1.05);
}

.art-info {
  display: flex;
  flex-direction: column;
  gap: var(--space-2xs);
}

.art-title {
  font-family: var(--font-serif);
  font-size: var(--text-lg);
  line-height: 1.3;
}

.art-artist {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
}

.art-meta {
  font-size: var(--text-xs);
  color: var(--color-text-tertiary);
}

.art-price {
  margin-top: var(--space-xs);
  font-size: var(--text-sm);
  letter-spacing: var(--tracking-wide);
  color: var(--color-accent-gold);
}

/* EDITORIAL INSERT */
.collection-editorial {
  background: linear-gradient(
    to bottom,
    var(--color-bg-secondary),
    var(--color-bg-primary)
  );
  padding: var(--space-5xl) var(--space-lg);
  margin: var(--space-4xl) 0;
  position: relative;
}

.editorial-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
  gap: clamp(2rem, 5vw, 5rem);
  align-items: center;
}

.editorial-text {
  position: relative;
  padding-left: var(--space-xl);
}

.editorial-text::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.3em;
  width: 1px;
  height: 70%;
  background: var(--color-accent-gold);
  opacity: 0.5;
}

.editorial-eyebrow {
  display: block;
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  color: var(--color-text-tertiary);
  margin-bottom: var(--space-sm);
}


.editorial-text h2 {
  font-family: var(--font-serif);
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  margin-bottom: var(--space-md);
}

.editorial-text p {
  font-size: var(--text-md);
  color: var(--color-text-secondary);
  line-height: var(--leading-loose);
  max-width: 52ch;
  margin-bottom: var(--space-lg);
}

.editorial-signature {
  font-family: var(--font-serif);
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-wide);
  color: var(--color-accent-gold);
  text-transform: uppercase;
}

.editorial-image {
  position: relative;
}

.editorial-image img {
  width: 100%;
  height: 460px;
  object-fit: cover;
  box-shadow: var(--shadow-soft);
}

.editorial-image::after {
  content: "";
  position: absolute;
  inset: 12px;
  border: 1px solid rgba(255,255,255,0.08);
  pointer-events: none;
}

/* LOAD MORE SECTION */
.load-more-section {
  padding: var(--space-2xl) var(--space-lg) var(--space-4xl);
  text-align: center;
  background: var(--color-bg-primary);
}

.btn-load-more {
  background: transparent;
  border: var(--border-accent);
  color: var(--color-text-primary);
  padding: var(--space-sm) var(--space-xl);
  font-family: var(--font-serif);
  font-size: var(--text-sm);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  cursor: pointer;
  transition: all var(--duration-medium) var(--ease-standard);
}

.btn-load-more:hover {
  background: var(--color-accent-gold);
  color: var(--color-bg-primary);
}

/* PRIVATE ACQUISITION */
.private-acquisition {
  background: radial-gradient(
    circle at top,
    rgba(255,255,255,0.04),
    transparent 70%
  ),
  var(--color-bg-primary);
  padding: var(--space-5xl) var(--space-lg);
  position: relative;
}

.private-inner {
  max-width: 720px;
  margin: 0 auto;
  text-align: center;
  padding: var(--space-3xl) var(--space-2xl);
  border: 1px solid rgba(255,255,255,0.08);
  position: relative;
}

.private-inner::before {
  content: "";
  position: absolute;
  inset: 10px;
  border: 1px solid rgba(255,255,255,0.04);
  pointer-events: none;
}

.private-eyebrow {
  display: block;
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  color: var(--color-text-tertiary);
  margin-bottom: var(--space-sm);
}

.private-title {
  font-family: var(--font-serif);
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  margin-bottom: var(--space-md);
}

.private-divider {
  width: 60px;
  height: 1px;
  background: var(--color-accent-gold);
  margin: 0 auto var(--space-lg);
  opacity: 0.6;
}


.private-text {
  font-size: var(--text-md);
  color: var(--color-text-secondary);
  line-height: var(--leading-loose);
  max-width: 52ch;
  margin: 0 auto var(--space-2xl);
}


.private-btn {
  display: inline-block;
  border: 1px solid var(--color-accent-gold);
  background: transparent;
  padding: 0.75rem 2.2rem;
  font-family: var(--font-serif);
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--color-accent-gold);
  transition: background 0.3s ease, color 0.3s ease;
  text-decoration: none;
}

.private-btn:hover {
  background: var(--color-accent-gold);
  color: var(--color-bg-primary);
}

/* Overlay */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(10, 11, 10, 0.75);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: var(--z-modal);

  opacity: 0;
  pointer-events: none;
  transition: opacity var(--duration-medium) var(--ease-standard);
}

/* Active state */
.modal-overlay.active {
  opacity: 1;
  pointer-events: all;
}

/* Window */
.modal-window {
  background: linear-gradient(145deg, var(--color-bg-secondary), #121412);
  border: var(--border-thin);
  border-radius: var(--radius-lg);
  padding: var(--space-3xl);
  max-width: 560px;
  text-align: center;
  box-shadow: var(--shadow-elevated);
  position: relative;

  transform: translateY(40px) scale(0.98);
  opacity: 0;
  transition:
    transform var(--duration-slow) var(--ease-gentle),
    opacity var(--duration-medium);
}

/* Animate in */
.modal-overlay.active .modal-window {
  transform: translateY(0) scale(1);
  opacity: 1;
}

/* Label */
.modal-label {
  display: block;
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--color-accent-gold);
  margin-bottom: var(--space-sm);
}

/* Heading */
.modal-window h2 {
  font-family: var(--font-serif);
  font-size: var(--text-xl);
  margin-bottom: var(--space-md);
}

/* Paragraph */
.modal-window p {
  color: var(--color-text-secondary);
  line-height: var(--leading-loose);
}

/* Close Button */
.modal-close {
  position: absolute;
  top: var(--space-sm);
  right: var(--space-sm);
  background: transparent;
  border: none;
  font-size: 1.6rem;
  color: var(--color-text-tertiary);
  cursor: pointer;
  transition: color var(--duration-fast);
}

.modal-close:hover {
  color: var(--color-accent-gold);
}


@media (max-width: 1024px) {
  .artwork-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}


@media (max-width: 900px) {
  .filters-inner {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-md);
  }

  .artwork-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .editorial-inner {
    grid-template-columns: 1fr;
  }

  .editorial-text {
    padding-left: 0;
  }

  .editorial-text::before {
    display: none;
  }

  .editorial-image img {
    height: 360px;
  }

  .modal-window {
    margin: var(--space-lg);
    padding: var(--space-xl);
  }
}

@media (max-width: 768px) {
  .collections-hero {
    padding: var(--space-3xl) var(--space-md) var(--space-2xl);
  }

  .collections-divider {
    margin-bottom: var(--space-xl);
  }

  .collections-filters {
    padding: var(--space-md) var(--space-sm);
  }

  .filters-inner {
    display: flex;
    gap: var(--space-md);
    overflow-x: auto;
    padding-bottom: var(--space-xs);
  }

  .filter-group {
    min-width: 160px;
    flex-shrink: 0;
  }

  .filters-inner::-webkit-scrollbar {
    height: 4px;
  }

  .filters-inner::-webkit-scrollbar-thumb {
    background: var(--color-state-border);
  }

  .artwork-grid {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }

  .art-image img {
    height: 360px;
  }

  .add-to-cart {
    opacity: 1;
    transform: none;
  }

  .collection-editorial {
    padding: var(--space-4xl) var(--space-md);
  }

  .editorial-text p {
    font-size: var(--text-sm);
  }

  .editorial-image img {
    height: 280px;
  }

  .modal-window {
    margin: var(--space-lg);
    padding: var(--space-xl);
  }
}

@media (max-width: 480px) {
  .collections-title {
    font-size: 2.4rem;
  }

  .collections-intro {
    font-size: 0.95rem;
  }

  .collections-filters {
    padding: var(--space-md) var(--space-sm);
  }

  .filters-inner {
    display: flex;
    gap: var(--space-md);
    overflow-x: auto;
    padding-bottom: var(--space-xs);
  }

  .filter-group {
    min-width: 160px;
    flex-shrink: 0;
  }

  .filters-inner::-webkit-scrollbar {
    height: 4px;
  }

  .filters-inner::-webkit-scrollbar-thumb {
    background: var(--color-state-border);
  }

  .artwork-grid {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }

  .art-image img {
    height: 360px;
  }

  .add-to-cart {
    opacity: 1;
    transform: none;
  }

  .collection-editorial {
    padding: var(--space-4xl) var(--space-md);
  }

  .editorial-text p {
    font-size: var(--text-sm);
  }

  .editorial-image img {
    height: 280px;
  }

  .modal-window {
    margin: var(--space-lg);
    padding: var(--space-xl);
  }
}