/* ========================================================
   MAIN CONTENT CONTAINER
   ======================================================== */
.collections-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 20px;
  min-width: 0;
}

/* ========================================================
   1. SCRAPBOOK HERO BANNER
   ======================================================== */
.scrapbook-hero {
  background: #F3E7D5;
  background: linear-gradient(135deg, #F5E9D8 0%, #EADAC3 100%);
  border: 1.5px solid #E4D5C3;
  border-radius: 18px;
  padding: 22px 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  position: relative;
  overflow: hidden;
  box-shadow: 0 4px 16px rgba(44, 29, 24, 0.05);
}

/* Subtle craft paper texture accent */
.scrapbook-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(180, 140, 100, 0.08) 1px, transparent 1px);
  background-size: 16px 16px;
  pointer-events: none;
}

/* Hero Left Note */
.hero-note-decor {
  flex-shrink: 0;
  width: 115px;
  height: 115px;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2;
  transition: transform 0.25s ease;
}

.hero-note-decor:hover {
  transform: rotate(-2deg) scale(1.04);
}

.hero-note-decor img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  filter: drop-shadow(0 4px 10px rgba(44, 29, 24, 0.12));
}

/* Hero Center Text */
.hero-center-info {
  flex: 1;
  text-align: left;
  z-index: 2;
  max-width: 580px;
}

.hero-title-main {
  font-family: 'Comfortaa', cursive, 'Nunito', sans-serif;
  font-size: 32px;
  font-weight: 800;
  color: #2D1C14;
  line-height: 1.2;
  margin-bottom: 8px;
  letter-spacing: -0.4px;
}

.hero-sub-main {
  font-size: 14.5px;
  font-weight: 600;
  color: #635044;
  line-height: 1.45;
}

/* Hero Right Polaroid */
.hero-polaroid-decor {
  flex-shrink: 0;
  width: 125px;
  height: 125px;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2;
  transition: transform 0.25s ease;
}

.hero-polaroid-decor:hover {
  transform: rotate(3deg) scale(1.04);
}

.hero-polaroid-decor img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  filter: drop-shadow(0 4px 10px rgba(44, 29, 24, 0.12));
}

/* ========================================================
   2. FILTER & PAGINATION BAR
   ======================================================== */
.filter-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.filter-pills {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.filter-btn {
  padding: 8px 18px;
  background-color: #FAF5EE;
  border: 1px solid #DFD3C4;
  border-radius: 8px;
  font-family: inherit;
  font-size: 13.5px;
  font-weight: 700;
  color: #554337;
  cursor: pointer;
  transition: all 0.15s ease;
  user-select: none;
}

.filter-btn:hover:not(.active) {
  background-color: #EFE4D6;
  border-color: #CBB9A7;
  color: #2D1C14;
}

.filter-btn.active {
  background-color: #35231B;
  border-color: #35231B;
  color: #FFFFFF;
}

/* Pagination Info & Buttons on Right */
.filter-pagination-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

.pagination-counter {
  font-size: 13px;
  font-weight: 600;
  color: #7E6E64;
  user-select: none;
}

.pagination-arrows {
  display: flex;
  align-items: center;
  gap: 6px;
}

.btn-arrow-page {
  width: 32px;
  height: 32px;
  background-color: #FAF5EE;
  border: 1px solid #DFD3C4;
  border-radius: 7px;
  color: #554337;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.15s ease;
  padding: 0;
}

.btn-arrow-page:hover:not(:disabled) {
  background-color: #EFE4D6;
  border-color: #CBB9A7;
  color: #2D1C14;
}

.btn-arrow-page:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

/* ========================================================
   3. 4-COLUMN COLLECTIONS GRID
   ======================================================== */
.collections-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}

.collection-card {
  background-color: #FFFFFF;
  border: 1px solid #EBE0D2;
  border-radius: 14px;
  overflow: hidden;
  text-decoration: none;
  color: inherit;
  display: flex;
  flex-direction: column;
  transition: transform 0.22s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.22s cubic-bezier(0.16, 1, 0.3, 1), border-color 0.22s;
  box-shadow: 0 2px 6px rgba(44, 29, 24, 0.03);
  position: relative;
  cursor: pointer;
}

.collection-card:hover {
  transform: translateY(-5px);
  border-color: #D6C2AD;
  box-shadow: 0 10px 24px rgba(44, 29, 24, 0.09);
}

/* Card Preview Top */
.card-thumb-container {
  width: 100%;
  aspect-ratio: 16 / 10;
  background-color: #FAF7F2;
  border-bottom: 1px solid #EDE2D4;
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.card-thumb-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.28s ease;
}

.collection-card:hover .card-thumb-img {
  transform: scale(1.03);
}

/* Badges: Hot & Mới */
.pack-badge {
  position: absolute;
  top: 10px;
  right: 10px;
  padding: 2.5px 10px;
  border-radius: 10px;
  font-size: 11px;
  font-weight: 800;
  color: #FFFFFF;
  letter-spacing: 0.3px;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.15);
  z-index: 3;
}

.pack-badge.badge-hot {
  background-color: #E64A38;
}

.pack-badge.badge-new {
  background-color: #4CAF50;
}

.pack-badge.badge-trending {
  background-color: #E65100;
}

/* Card Information Body */
.card-body-content {
  padding: 13px 15px 14px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.card-title-text {
  font-size: 15.5px;
  font-weight: 800;
  color: #2D1C14;
  line-height: 1.25;
  margin-bottom: 5px;
  transition: color 0.15s ease;
}

.collection-card:hover .card-title-text {
  color: var(--brand-orange);
}

.card-desc-text {
  font-size: 12.5px;
  font-weight: 500;
  color: #6C5A4F;
  line-height: 1.42;
  margin-bottom: 12px;
  height: 36px;
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}

/* Card Stats Footer */
.card-stats-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: auto;
  padding-top: 10px;
  border-top: 1px solid #F2E9DE;
  font-size: 11.5px;
  font-weight: 600;
  color: #7E6E64;
}

.stat-entry {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.stat-entry svg {
  color: #8C7B70;
  width: 13px;
  height: 13px;
}


/* ========================================================
   RESPONSIVE DESIGN RULES
   ======================================================== */
@media (max-width: 1240px) {
  .collections-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
  }
}

@media (max-width: 992px) {
  .collections-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
  }
  .scrapbook-hero {
    padding: 20px 22px;
  }
  .hero-title-main {
    font-size: 26px;
  }
}

@media (max-width: 860px) {
  .scrapbook-hero {
    flex-direction: column;
    text-align: center;
    gap: 14px;
  }
  .hero-center-info {
    text-align: center;
  }
  .hero-note-decor,
  .hero-polaroid-decor {
    display: none;
  }
  .filter-bar {
    flex-direction: column;
    align-items: flex-start;
  }
  .filter-pagination-right {
    width: 100%;
    justify-content: space-between;
  }
}

@media (max-width: 520px) {
  .collections-grid {
    grid-template-columns: 1fr;
  }
  .filter-btn {
    padding: 7px 12px;
    font-size: 12.5px;
  }
}