/* ==========================================================================
   Hải Anh Pro - Catalog Pages Custom CSS
   ========================================================================== */

/* Variables & Theme Colors */
:root {
  --cat-black: #1d1c1c;
  --cat-white: #ffffff;
  --cat-gold: #c3b8a5;
  --cat-gold-dark: #b1a48f;
  --cat-light-bg: #f9f9f9;
  --cat-border: #e8e8e8;
  --cat-shadow: rgba(0, 0, 0, 0.06);
  --cat-shadow-hover: rgba(0, 0, 0, 0.12);
  --cat-transition: all 0.4s cubic-bezier(0.25, 1, 0.5, 1);
}

/* --------------------------------------------------------------------------
   1. Catalog List Page Header/Banner
   -------------------------------------------------------------------------- */
/* --------------------------------------------------------------------------
   1. Catalog List Page Header/Banner (Redesigned)
   -------------------------------------------------------------------------- */
.catalog-header-section {
  padding: 80px 0 50px;
  background-color: #faf9f6; /* Premium warm white background */
  border-bottom: 1px solid var(--cat-border);
  position: relative;
  overflow: hidden;
}

/* Subtle architectural vertical line grid overlay */
.catalog-header-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 7.5%;
  width: 1px;
  height: 100%;
  background-color: rgba(195, 184, 165, 0.15); /* Very light gold line */
  pointer-events: none;
}

.catalog-header-wrapper {
  position: relative;
  z-index: 2;
}

.catalog-pre-title {
  display: block;
  font-size: 11px;
  font-weight: 600;
  color: var(--cat-gold-dark);
  letter-spacing: 4px;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.catalog-title-main {
  font-size: 40px;
  font-weight: 300;
  color: var(--cat-black);
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 18px;
  line-height: 1.2;
}

.catalog-title-main span {
  font-weight: 700;
}

.catalog-desc-main {
  font-size: 15px;
  color: #666;
  max-width: 700px;
  line-height: 1.7;
  margin-bottom: 35px;
}

/* --------------------------------------------------------------------------
   2. Filter Navigation (Tabs) (Redesigned)
   -------------------------------------------------------------------------- */
.catalog-filter-wrap {
  margin-top: 10px;
}

.catalog-filter-tabs {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-start; /* Asymmetric left-aligned alignment */
  gap: 10px;
  padding: 0;
  margin: 0;
  list-style: none;
}

.filter-tab-item {
  margin: 0;
}

.filter-tab-btn {
  background: transparent;
  border: 1px solid #e2ded5;
  color: #666;
  font-size: 12px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  padding: 10px 22px;
  cursor: pointer;
  transition: var(--cat-transition);
}

.filter-tab-btn:hover {
  color: var(--cat-black);
  border-color: var(--cat-black);
  background-color: rgba(0, 0, 0, 0.02);
}

.filter-tab-btn.active {
  color: var(--cat-white);
  background-color: var(--cat-black);
  border-color: var(--cat-black);
  font-weight: 500;
}



/* --------------------------------------------------------------------------
   3. Catalog Grid & Cards
   -------------------------------------------------------------------------- */
.catalog-grid-section {
  padding: 60px 0 100px;
  background-color: var(--cat-light-bg);
}

.catalog-card {
  background-color: var(--cat-white);
  border: 1px solid var(--cat-border);
  border-radius: 0; /* Sharp edges */
  overflow: hidden;
  height: 100%;
  display: flex;
  flex-direction: column;
  transition: var(--cat-transition);
}

.catalog-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 40px var(--cat-shadow-hover);
  border-color: var(--cat-gold);
}

.catalog-cover-wrapper {
  position: relative;
  width: 100%;
  aspect-ratio: 3 / 4; /* Optimized cover aspect ratio */
  overflow: hidden;
  background-color: #eaeaea;
}

.catalog-cover-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.8s cubic-bezier(0.25, 1, 0.5, 1);
}

.catalog-card:hover .catalog-cover-img {
  transform: scale(1.06);
}

/* Shine overlay effect */
.catalog-cover-wrapper::after {
  content: '';
  position: absolute;
  top: 0;
  left: -150%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    to right,
    rgba(255, 255, 255, 0) 0%,
    rgba(255, 255, 255, 0.3) 50%,
    rgba(255, 255, 255, 0) 100%
  );
  transform: skewX(-25deg);
  transition: var(--cat-transition);
  pointer-events: none;
}

.catalog-card:hover .catalog-cover-wrapper::after {
  left: 150%;
  transition: 1s ease-in-out;
}

.catalog-badge {
  position: absolute;
  top: 15px;
  left: 15px;
  background-color: var(--cat-black);
  color: var(--cat-white);
  font-size: 10px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 1px;
  padding: 6px 12px;
  z-index: 2;
  border: 1px solid var(--cat-gold);
}

.catalog-actions-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(29, 28, 28, 0.85);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 15px;
  opacity: 0;
  transition: var(--cat-transition);
  z-index: 3;
}

.catalog-card:hover .catalog-actions-overlay {
  opacity: 1;
}

.btn-catalog-view,
.btn-catalog-download {
  width: 150px;
  height: 38px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 1px;
  border-radius: 0;
  transition: var(--cat-transition);
}

.btn-catalog-view {
  background-color: var(--cat-white);
  color: var(--cat-black);
  border: 1px solid var(--cat-white);
}

.btn-catalog-view:hover {
  background-color: var(--cat-gold);
  color: var(--cat-black);
  border-color: var(--cat-gold);
}

.btn-catalog-download {
  background-color: transparent;
  color: var(--cat-white);
  border: 1px solid var(--cat-white);
}

.btn-catalog-download:hover {
  background-color: var(--cat-white);
  color: var(--cat-black);
}

.catalog-card-info {
  padding: 20px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.catalog-card-category {
  font-size: 11px;
  text-transform: uppercase;
  color: var(--cat-gold);
  letter-spacing: 1px;
  margin-bottom: 8px;
  font-weight: 600;
}

.catalog-card-title {
  font-size: 16px;
  font-weight: 500;
  line-height: 1.4;
  margin-bottom: 10px;
}

.catalog-card-title a {
  color: var(--cat-black);
}

.catalog-card-title a:hover {
  color: var(--cat-gold);
}

.catalog-card-meta {
  margin-top: auto;
  padding-top: 15px;
  border-top: 1px solid var(--cat-border);
  font-size: 12px;
  color: #777;
}

/* Filter grid visibility transition */
.catalog-item-col {
  transition: opacity 0.4s ease, transform 0.4s ease;
}

.catalog-item-col.filtered-out {
  display: none;
  opacity: 0;
  transform: scale(0.9);
}

/* --------------------------------------------------------------------------
   4. Catalog Detail Page & Flipbook Reader
   ========================================================================== */
.catalog-detail-header {
  padding: 60px 0 40px;
  background-color: #faf9f6; /* Matching premium warm white background */
  border-bottom: 1px solid var(--cat-border);
}

.breadcrumb-minimal {
  font-size: 13px;
  letter-spacing: 0.5px;
}

.breadcrumb-minimal a {
  color: #888;
}

.breadcrumb-minimal a:hover {
  color: var(--cat-gold);
}

.breadcrumb-minimal span.active {
  color: var(--cat-black);
}

.catalog-detail-title-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
  margin-top: 25px;
}

.catalog-detail-title {
  font-size: 32px;
  font-weight: 400;
  letter-spacing: 1px;
  margin: 0;
}

.catalog-size-info {
  font-size: 13px;
  color: #888;
  margin-top: 5px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.btn-download-pdf-main {
  background-color: var(--cat-black);
  color: var(--cat-white);
  border: 1px solid var(--cat-black);
  padding: 12px 28px;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 1px;
  text-transform: uppercase;
  transition: var(--cat-transition);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.btn-download-pdf-main:hover {
  background-color: var(--cat-gold);
  color: var(--cat-black);
  border-color: var(--cat-gold);
}

/* --------------------------------------------------------------------------
   4. Native PDF Viewer Layout (Redesigned)
   ========================================================================== */
.pdf-viewer-section {
  padding: 60px 0 80px;
  background-color: #f5f4f0; /* Warm stone gray to cleanly separate header and black footer */
  border-bottom: 1px solid var(--cat-border);
}

.pdf-viewer-card {
  background-color: var(--cat-white);
  border: 1px solid #e2ded5;
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.05);
  padding: 15px;
  position: relative;
}

.pdf-frame {
  width: 100%;
  height: 800px;
  display: block;
  background-color: #fcfcfc;
}

.pdf-mobile-fallback {
  background-color: #faf9f6;
  border: 1px dashed #e2ded5;
  padding: 40px 20px;
}

.pdf-mobile-fallback i {
  color: var(--cat-gold-dark);
}

/* ==========================================================================
   5. Responsive & Touch Device Optimizations
   ========================================================================== */

/* Link wrapper for card covers */
.catalog-cover-link {
  display: block;
  width: 100%;
  height: 100%;
  text-decoration: none;
}

/* Hide desktop overlays on touch-enabled/mobile screens */
@media (max-width: 991px) {
  .catalog-actions-overlay {
    display: none !important;
  }
}

/* Tablet & Mobile Detail Page Header */
@media (max-width: 991px) {
  .catalog-detail-header {
    padding: 40px 0 30px;
  }
  .catalog-detail-title {
    font-size: 28px;
  }
  .btn-detail-download {
    width: 100%;
    margin-top: 20px;
  }
}

/* Mobile Specific Adjustments */
@media (max-width: 767px) {
  /* List Header */
  .catalog-header-section {
    padding: 48px 0 32px;
  }
  .catalog-title-main {
    font-size: 28px;
    letter-spacing: 1px;
  }
  .catalog-desc-main {
    font-size: 14px;
    line-height: 1.6;
    margin-bottom: 25px;
  }

  /* Horizontal Scrollable Filter Tabs */
  .catalog-filter-wrap {
    overflow-x: auto;
    white-space: nowrap;
    -webkit-overflow-scrolling: touch;
    padding-bottom: 8px;
    margin-bottom: -8px;
    scrollbar-width: none; /* Hide scrollbar Firefox */
  }
  .catalog-filter-wrap::-webkit-scrollbar {
    display: none; /* Hide scrollbar Chrome/Safari */
  }
  .catalog-filter-tabs {
    flex-wrap: nowrap;
    width: max-content;
    padding-right: 15px;
    gap: 8px;
  }
  .filter-tab-btn {
    padding: 8px 16px;
    font-size: 11px;
  }

  /* Grid Layout Padding & Cards */
  .catalog-grid-section {
    padding: 40px 0 60px;
  }
  #catalog-grid {
    --bs-gutter-x: 12px !important;
    --bs-gutter-y: 12px !important;
  }
  .catalog-card-info {
    padding: 12px;
  }
  .catalog-card-category {
    font-size: 10px;
    margin-bottom: 6px;
  }
  .catalog-card-title {
    font-size: 14px;
    line-height: 1.35;
    margin-bottom: 8px;
  }
  .catalog-card-meta {
    padding-top: 10px;
    font-size: 11px;
  }

  /* PDF Viewer mobile view */
  .pdf-viewer-section {
    padding: 20px 0 40px;
  }
  .pdf-frame {
    height: 520px;
  }
  
  /* Fallback buttons */
  .catalog-detail-title-row {
    flex-direction: column;
    align-items: flex-start;
    gap: 15px;
  }
  .btn-download-pdf-main {
    width: 100%;
    justify-content: center;
  }
}

/* Very Small Mobile Screens - Stack meta */
@media (max-width: 575px) {
  .catalog-card-meta {
    flex-direction: column;
    align-items: flex-start !important;
    gap: 6px;
  }
}

/* Fallback placeholder style for catalogs without cover image */
.catalog-cover-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  background: linear-gradient(135deg, #1d1c1c 0%, #2e2d2d 100%);
  color: var(--cat-white);
  padding: 30px 20px;
  text-align: center;
  box-sizing: border-box;
  position: relative;
  border: 1px solid rgba(195, 184, 165, 0.2);
  transition: var(--cat-transition);
}

.catalog-cover-placeholder::before {
  content: '';
  position: absolute;
  top: 15px;
  left: 15px;
  right: 15px;
  bottom: 15px;
  border: 1px solid rgba(195, 184, 165, 0.15);
  pointer-events: none;
}

.catalog-cover-placeholder .placeholder-icon {
  font-size: 56px;
  color: var(--cat-gold);
  margin-bottom: 20px;
  filter: drop-shadow(0 4px 10px rgba(195, 184, 165, 0.2));
  transition: var(--cat-transition);
}

.catalog-cover-placeholder .placeholder-title {
  font-size: 14px;
  font-weight: 500;
  line-height: 1.4;
  letter-spacing: 0.5px;
  color: var(--cat-white);
  margin-bottom: 20px;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  text-transform: uppercase;
}

.catalog-cover-placeholder .placeholder-tag {
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 3px;
  color: var(--cat-gold-dark);
  text-transform: uppercase;
  margin-top: auto;
}

.catalog-card:hover .placeholder-icon {
  transform: translateY(-5px) scale(1.05);
  color: var(--cat-white);
}

.catalog-card:hover .catalog-cover-placeholder {
  border-color: var(--cat-gold);
}

/* Breadcrumbs Styling */
.catalog-breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: #888;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  font-weight: 500;
  padding: 5px 0;
}

.catalog-breadcrumbs a {
  color: #888;
  text-decoration: none;
  transition: var(--cat-transition);
}

.catalog-breadcrumbs a:hover {
  color: var(--cat-gold);
}

.catalog-breadcrumbs span:last-child {
  color: var(--cat-black);
  font-weight: 600;
}

.catalog-breadcrumb-sep {
  color: #ccc;
  font-size: 10px;
  margin: 0 2px;
}

/* Mobile Actions Container */
.catalog-mobile-actions {
  margin-bottom: 12px;
}

.btn-catalog-mobile-download {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 34px;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border: 1px solid var(--cat-black);
  background-color: var(--cat-black);
  color: var(--cat-white);
  text-decoration: none;
  transition: var(--cat-transition);
}

.btn-catalog-mobile-download:hover,
.btn-catalog-mobile-download:active {
  background-color: var(--cat-gold);
  border-color: var(--cat-gold);
  color: var(--cat-black);
}

/* ==========================================================================
   6. Catalog Detail Page Components Styling (Missing Classes)
   ========================================================================== */
.catalog-detail-category {
  display: block;
  font-size: 12px;
  text-transform: uppercase;
  color: var(--cat-gold-dark);
  letter-spacing: 2px;
  font-weight: 600;
  margin-bottom: 10px;
}

.catalog-detail-meta {
  display: flex;
  align-items: center;
  gap: 20px;
  margin-top: 15px;
}

.meta-item {
  font-size: 13px;
  color: #666;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.meta-item i {
  color: var(--cat-gold-dark);
}

.btn-detail-download {
  background-color: var(--cat-black);
  color: var(--cat-white);
  border: 1px solid var(--cat-black);
  padding: 12px 28px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  transition: var(--cat-transition);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
}

.btn-detail-download:hover {
  background-color: var(--cat-gold);
  color: var(--cat-black);
  border-color: var(--cat-gold);
}

/* Mobile PDF Viewer Fallback Styling */
.pdf-mobile-fallback .fallback-icon {
  font-size: 48px;
  color: var(--cat-gold-dark);
  margin-bottom: 20px;
}

.pdf-mobile-fallback h3 {
  font-size: 20px;
  font-weight: 500;
  color: var(--cat-black);
  margin-bottom: 12px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.pdf-mobile-fallback p {
  font-size: 14px;
  color: #666;
  line-height: 1.6;
  max-width: 500px;
  margin: 0 auto 25px;
}

.btn-mobile-pdf-action {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  max-width: 280px;
  height: 44px;
  margin: 10px auto;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  border: 1px solid var(--cat-black);
  background-color: var(--cat-white);
  color: var(--cat-black);
  transition: var(--cat-transition);
  text-decoration: none;
}

.btn-mobile-pdf-action:hover,
.btn-mobile-pdf-action:active {
  background-color: var(--cat-black);
  color: var(--cat-white);
}

.btn-mobile-pdf-download {
  background-color: var(--cat-black);
  color: var(--cat-white);
  border: 1px solid var(--cat-black);
}

.btn-mobile-pdf-download:hover,
.btn-mobile-pdf-download:active {
  background-color: var(--cat-gold-dark);
  border-color: var(--cat-gold-dark);
  color: var(--cat-white);
}