/* ============================================
   Cases Page - Verus Rich Corporation
   Sidebar + Card Grid + Luxury Modal
   ============================================ */

/* ---- Content Section ---- */
.cases-content-section {
  padding: var(--spacing-section) 0;
  background-color: var(--color-cream);
}

/* ---- 2-Column Layout ---- */
.cases-layout {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: var(--spacing-3xl);
  align-items: start;
}

/* ---- Sidebar ---- */
.cases-sidebar {
  position: sticky;
  top: calc(var(--header-height) + var(--spacing-xl));
}

.cases-sidebar__header {
  margin-bottom: var(--spacing-lg);
}

.cases-sidebar__label {
  display: block;
  font-family: var(--font-display);
  font-size: var(--font-size-lg);
  font-weight: 500;
  letter-spacing: 0.3em;
  color: var(--color-accent);
  padding-bottom: var(--spacing-sm);
  border-bottom: 2px solid var(--color-accent);
}

/* ---- Category Filter (Separated Items) ---- */
.cases-sidebar__filter {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.cases-filter__btn {
  padding: 10px 16px;
  font-family: var(--font-serif);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-light);
  background-color: transparent;
  border: none;
  border-left: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
  letter-spacing: 0.04em;
  text-align: left;
}

.cases-filter__btn:hover {
  color: var(--color-accent);
}

.cases-filter__btn.is-active {
  color: var(--color-primary-dark);
  font-weight: var(--font-weight-bold);
  border-left-color: var(--color-accent);
}

/* ---- Tag Filter (Dropdown) ---- */
.cases-sidebar__header--tag {
  margin-top: var(--spacing-xl);
}

.cases-tag-dropdown {
  position: relative;
}

.cases-tag-dropdown__trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 10px 14px;
  font-family: var(--font-serif);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-primary-dark);
  background-color: var(--color-bg);
  border: 1px solid rgba(197, 160, 89, 0.3);
  border-radius: 4px;
  cursor: pointer;
  transition: all var(--transition-fast);
  letter-spacing: 0.04em;
  text-align: left;
}

.cases-tag-dropdown__trigger:hover {
  border-color: var(--color-accent);
  box-shadow: 0 2px 8px rgba(197, 160, 89, 0.1);
}

.cases-tag-dropdown.is-open .cases-tag-dropdown__trigger {
  border-color: var(--color-accent);
  box-shadow: 0 2px 12px rgba(197, 160, 89, 0.15);
}

.cases-tag-dropdown__chevron {
  flex-shrink: 0;
  color: var(--color-accent);
  transition: transform var(--transition-fast);
}

.cases-tag-dropdown.is-open .cases-tag-dropdown__chevron {
  transform: rotate(180deg);
}

.cases-tag-dropdown__panel {
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  width: 100%;
  min-width: 220px;
  background-color: var(--color-bg);
  border: 1px solid rgba(197, 160, 89, 0.25);
  border-radius: 4px;
  box-shadow:
    0 8px 30px rgba(0, 0, 0, 0.1),
    0 0 0 1px rgba(197, 160, 89, 0.06);
  z-index: 100;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-4px);
  transition: opacity 0.2s ease, visibility 0.2s ease, transform 0.2s ease;
}

.cases-tag-dropdown.is-open .cases-tag-dropdown__panel {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.cases-tag-dropdown__search-wrap {
  padding: var(--spacing-sm);
  border-bottom: 1px solid rgba(197, 160, 89, 0.12);
}

.cases-tag-dropdown__search {
  width: 100%;
  padding: 8px 12px;
  font-family: var(--font-serif);
  font-size: var(--font-size-xs);
  color: var(--color-text);
  background-color: var(--color-bg-section);
  border: 1px solid rgba(197, 160, 89, 0.15);
  border-radius: 3px;
  outline: none;
  transition: border-color var(--transition-fast);
  letter-spacing: 0.02em;
}

.cases-tag-dropdown__search::placeholder {
  color: var(--color-text-muted);
}

.cases-tag-dropdown__search:focus {
  border-color: var(--color-accent);
}

.cases-tag-dropdown__list {
  max-height: 240px;
  overflow-y: auto;
  padding: var(--spacing-xs) 0;
  scrollbar-width: thin;
  scrollbar-color: rgba(197, 160, 89, 0.25) transparent;
}

.cases-tag-dropdown__list::-webkit-scrollbar {
  width: 4px;
}

.cases-tag-dropdown__list::-webkit-scrollbar-track {
  background: transparent;
}

.cases-tag-dropdown__list::-webkit-scrollbar-thumb {
  background-color: rgba(197, 160, 89, 0.25);
  border-radius: 2px;
}

.cases-tag-dropdown__item {
  display: block;
  width: 100%;
  padding: 8px 16px;
  font-family: var(--font-serif);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-light);
  background-color: transparent;
  border: none;
  cursor: pointer;
  transition: all var(--transition-fast);
  letter-spacing: 0.02em;
  text-align: left;
}

.cases-tag-dropdown__item:hover {
  color: var(--color-accent);
  background-color: rgba(197, 160, 89, 0.06);
}

.cases-tag-dropdown__item.is-active {
  color: var(--color-primary-dark);
  font-weight: var(--font-weight-bold);
  background-color: rgba(197, 160, 89, 0.1);
  position: relative;
}

.cases-tag-dropdown__item.is-active::before {
  content: '';
  position: absolute;
  left: 6px;
  top: 50%;
  transform: translateY(-50%);
  width: 3px;
  height: 14px;
  background-color: var(--color-accent);
  border-radius: 1px;
}

/* ---- Main Content ---- */
.cases-main__header {
  margin-bottom: var(--spacing-2xl);
}

.cases-main__label {
  display: block;
  font-family: var(--font-display);
  font-size: var(--font-size-lg);
  font-weight: 500;
  letter-spacing: 0.3em;
  color: var(--color-accent);
  padding-bottom: var(--spacing-sm);
  border-bottom: 2px solid var(--color-accent);
}

/* ---- Cases Grid ---- */
.cases-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-xl);
}

/* ---- Case Card ---- */
.case-card {
  background-color: var(--color-bg);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(197, 160, 89, 0.12);
  overflow: hidden;
  cursor: pointer;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.case-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.08), 0 0 0 1px rgba(197, 160, 89, 0.15);
}

.case-card__image {
  position: relative;
  overflow: hidden;
}

.case-card__image img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  display: block;
  transition: transform var(--transition-slow);
}

.case-card:hover .case-card__image img {
  transform: scale(1.05);
}

.case-card__category {
  position: absolute;
  top: var(--spacing-md);
  left: var(--spacing-md);
  padding: 5px 14px;
  font-family: var(--font-serif);
  font-size: 11px;
  font-weight: var(--font-weight-bold);
  letter-spacing: 0.06em;
  border-radius: 2px;
  border: 1px solid;
}

/* Category tag colors */
.cases-tag--dx {
  background-color: rgba(31, 138, 112, 0.9);
  color: #ffffff;
  border-color: rgba(31, 138, 112, 0.9);
}

.cases-tag--recruit {
  background-color: rgba(197, 160, 89, 0.9);
  color: var(--color-primary-dark);
  border-color: rgba(197, 160, 89, 0.9);
}

.cases-tag--consulting {
  background-color: rgba(15, 23, 42, 0.85);
  color: #ffffff;
  border-color: rgba(15, 23, 42, 0.85);
}

.case-card__body {
  padding: var(--spacing-lg);
}

.case-card__client {
  font-family: var(--font-serif);
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-xs);
  letter-spacing: 0.02em;
}

.case-card__title {
  font-family: var(--font-serif);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary-dark);
  margin-bottom: var(--spacing-sm);
  line-height: var(--line-height-heading);
  transition: color var(--transition-fast);
}

.case-card:hover .case-card__title {
  color: var(--color-accent);
}

.case-card__summary {
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
  line-height: var(--line-height-base);
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.case-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-xs);
  margin-top: var(--spacing-md);
  padding-top: var(--spacing-md);
  border-top: 1px solid rgba(197, 160, 89, 0.12);
}

.case-card__tag {
  font-family: var(--font-serif);
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  padding: 2px 10px;
  background-color: var(--color-bg-section);
  border-radius: 2px;
  letter-spacing: 0.02em;
  cursor: pointer;
  transition: color var(--transition-fast), background-color var(--transition-fast);
}

.case-card__tag:hover {
  color: var(--color-accent);
  background-color: rgba(197, 160, 89, 0.12);
}

/* ---- Pagination (Gold Luxury) ---- */
.cases-pagination {
  padding-top: var(--spacing-2xl);
  padding-bottom: var(--spacing-xl);
}

.cases-pagination .pagination__btn {
  width: 44px;
  height: 44px;
  font-family: var(--font-display);
  font-size: var(--font-size-base);
  font-weight: 500;
  color: var(--color-text-light);
  background-color: var(--color-bg);
  border: 1px solid rgba(197, 160, 89, 0.25);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.cases-pagination .pagination__btn:hover {
  color: var(--color-accent);
  border-color: var(--color-accent);
  background-color: var(--color-bg);
  box-shadow: 0 2px 12px rgba(197, 160, 89, 0.12);
}

.cases-pagination .pagination__btn.is-active {
  color: var(--color-primary-dark);
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-light));
  border-color: transparent;
  box-shadow: 0 4px 16px rgba(197, 160, 89, 0.25);
  font-weight: 600;
}

.cases-pagination .pagination__btn--prev,
.cases-pagination .pagination__btn--next {
  color: var(--color-accent);
  border-color: rgba(197, 160, 89, 0.3);
}

.cases-pagination .pagination__btn--prev:hover,
.cases-pagination .pagination__btn--next:hover {
  background-color: rgba(197, 160, 89, 0.08);
  border-color: var(--color-accent);
}

.cases-pagination .pagination__btn:disabled {
  opacity: 0.3;
  cursor: not-allowed;
  box-shadow: none;
}

.cases-pagination .pagination__btn:disabled:hover {
  background-color: var(--color-bg);
  border-color: rgba(197, 160, 89, 0.25);
  color: var(--color-text-light);
  box-shadow: none;
}

/* ---- Cases Modal (Luxury) ---- */
.cases-modal {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}

.cases-modal.is-active {
  opacity: 1;
  visibility: visible;
}

.cases-modal__overlay {
  position: absolute;
  inset: 0;
  background-color: rgba(15, 23, 42, 0.75);
  backdrop-filter: blur(6px);
}

.cases-modal__container {
  position: relative;
  width: 90%;
  max-width: 780px;
  max-height: 85vh;
  background-color: var(--color-bg);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(197, 160, 89, 0.25);
  box-shadow:
    0 20px 60px rgba(0, 0, 0, 0.2),
    0 0 0 1px rgba(197, 160, 89, 0.08),
    inset 0 1px 0 rgba(255, 255, 255, 0.8);
  overflow-y: auto;
  transform: translateY(20px) scale(0.98);
  transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

.cases-modal.is-active .cases-modal__container {
  transform: translateY(0) scale(1);
}

/* Gold accent line at top */
.cases-modal__container::before {
  content: '';
  position: sticky;
  top: 0;
  display: block;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, transparent 5%, var(--color-accent) 30%, var(--color-accent-light) 50%, var(--color-accent) 70%, transparent 95%);
  z-index: 3;
}

.cases-modal__close {
  position: fixed;
  top: 20px;
  right: 20px;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: rgba(15, 23, 42, 0.6);
  border: 1px solid rgba(197, 160, 89, 0.3);
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--transition-fast);
  z-index: 10000;
  backdrop-filter: blur(8px);
}

.cases-modal__close:hover {
  background-color: rgba(15, 23, 42, 0.8);
  border-color: var(--color-accent);
  box-shadow: 0 0 20px rgba(197, 160, 89, 0.2);
}

.cases-modal__close svg {
  width: 18px;
  height: 18px;
  stroke: rgba(255, 255, 255, 0.9);
}

.cases-modal__image {
  width: 100%;
  background-color: var(--color-bg-section);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-xl);
  border-bottom: 1px solid rgba(197, 160, 89, 0.12);
}

.cases-modal__image img {
  max-width: 100%;
  max-height: 360px;
  height: auto;
  object-fit: contain;
  display: block;
  border-radius: var(--radius-md);
}

.cases-modal__body {
  padding: var(--spacing-2xl) var(--spacing-3xl) var(--spacing-3xl);
}

.cases-modal__meta {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
}

.cases-modal__category-tag {
  padding: 5px 14px;
  font-family: var(--font-serif);
  font-size: 11px;
  font-weight: var(--font-weight-bold);
  letter-spacing: 0.06em;
  border-radius: 2px;
  border: 1px solid;
}

.cases-modal__client {
  font-family: var(--font-display);
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  letter-spacing: 0.04em;
}

.cases-modal__title {
  font-family: var(--font-serif);
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary-dark);
  line-height: var(--line-height-heading);
  margin-bottom: var(--spacing-xl);
  padding-bottom: var(--spacing-xl);
  border-bottom: 1px solid rgba(197, 160, 89, 0.2);
  position: relative;
}

/* Gold decorative dot */
.cases-modal__title::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 50%;
  transform: translateX(-50%);
  width: 8px;
  height: 8px;
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-light));
  border-radius: var(--radius-full);
}

.cases-modal__section {
  margin-bottom: var(--spacing-xl);
}

.cases-modal__section:last-child {
  margin-bottom: 0;
}

.cases-modal__section-title {
  font-family: var(--font-serif);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary-dark);
  margin-bottom: var(--spacing-sm);
  padding-bottom: var(--spacing-xs);
  border-bottom: 2px solid var(--color-accent);
  display: inline-block;
}

.cases-modal__section-text {
  font-family: var(--font-serif);
  font-size: var(--font-size-base);
  color: var(--color-text);
  line-height: 2.0;
  letter-spacing: 0.02em;
}

/* ---- Modal CTA ---- */
.cases-modal__cta {
  margin-top: var(--spacing-2xl);
  padding-top: var(--spacing-2xl);
  border-top: 1px solid rgba(197, 160, 89, 0.15);
  text-align: center;
}

.cases-modal__cta-link {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: 14px 36px;
  font-family: var(--font-serif);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-bold);
  color: var(--color-accent);
  background-color: transparent;
  border: 1.5px solid var(--color-accent);
  border-radius: 4px;
  letter-spacing: 0.06em;
  text-decoration: none;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.cases-modal__cta-link:hover {
  color: var(--color-primary-dark);
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-light));
  border-color: var(--color-accent);
  box-shadow: 0 4px 20px rgba(197, 160, 89, 0.3);
}

.cases-modal__cta-arrow {
  display: inline-block;
  width: 20px;
  height: 1px;
  background-color: currentColor;
  position: relative;
  transition: width var(--transition-base);
}

.cases-modal__cta-arrow::after {
  content: '';
  position: absolute;
  right: 0;
  top: 50%;
  width: 8px;
  height: 8px;
  border-top: 1px solid currentColor;
  border-right: 1px solid currentColor;
  transform: translateY(-50%) rotate(45deg);
}

.cases-modal__cta-link:hover .cases-modal__cta-arrow {
  width: 28px;
}

/* Modal footer accent */
.cases-modal__body::after {
  content: '';
  display: block;
  width: 60px;
  height: 1px;
  background: linear-gradient(90deg, var(--color-accent), transparent);
  margin-top: var(--spacing-2xl);
}

/* ---- Responsive ---- */

/* Tablet: sidebar becomes horizontal */
@media (max-width: 1023px) {
  .cases-layout {
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
  }

  .cases-sidebar {
    position: static;
  }

  .cases-sidebar__filter {
    flex-direction: row;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
  }

  .cases-filter__btn {
    padding: 10px 24px;
    border: 1px solid rgba(197, 160, 89, 0.2);
    border-left: 1px solid rgba(197, 160, 89, 0.2);
    border-radius: var(--radius-md);
    background-color: var(--color-bg);
  }

  .cases-filter__btn.is-active {
    border-left: 1px solid rgba(197, 160, 89, 0.2);
    border-color: var(--color-accent);
    color: var(--color-primary-dark);
  }

  .cases-sidebar__header--tag {
    margin-top: var(--spacing-lg);
  }

  .cases-tag-dropdown__panel {
    min-width: 260px;
  }

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

@media (max-width: 767px) {
  .cases-content-section {
    padding: var(--spacing-xl) 0;
  }

  .cases-sidebar__label,
  .cases-main__label {
    font-size: var(--font-size-base);
  }

  .cases-filter__btn {
    padding: 8px 18px;
    font-size: var(--font-size-xs);
  }

  .cases-tag-dropdown__panel {
    min-width: 100%;
  }

  .cases-grid {
    grid-template-columns: 1fr;
  }

  .case-card__title {
    font-size: var(--font-size-sm);
  }

  /* Modal */
  .cases-modal__close {
    top: 12px;
    right: 12px;
    width: 40px;
    height: 40px;
  }

  .cases-modal__container {
    width: 95%;
    max-height: 90vh;
  }

  .cases-modal__image {
    padding: var(--spacing-md);
  }

  .cases-modal__image img {
    max-height: 240px;
  }

  .cases-modal__body {
    padding: var(--spacing-xl) var(--spacing-lg) var(--spacing-2xl);
  }

  .cases-modal__title {
    font-size: var(--font-size-lg);
  }

  .cases-modal__section-text {
    font-size: var(--font-size-sm);
  }
}