/**
 * ==========================================================================
 * ACCR Modern Broadsheet Design System - Category Grids & Thematic Flows
 * Asymmetric Studies Feature, 50/50 Magazine Split & Seminars Trio
 * Designed with ui-ux-pro-max-skill: Visual Rhythm & Open Architecture
 * ==========================================================================
 */

/* ==========================================================================
 * 1. Asymmetric In-Depth Studies & Research Section (60% Lead + 40% Side)
 * ========================================================================== */
.studies_investigations_section {
  width: 100%;
  padding: var(--space-3xl) 0;
  background: var(--background);
}

.studies_asymmetric_grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: var(--space-3xl);
  align-items: start;
}

/* Right Column: Lead Study Feature (60%) */
.study_lead_col {
  display: flex;
  flex-direction: column;
  padding-left: var(--space-2xl);
  border-left: var(--hairline);
}

.study_lead_feature {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.study_lead_thumb {
  width: 100%;
  aspect-ratio: 16 / 9.5;
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--bg-surface-subtle);
  margin-bottom: 4px;
}

.study_lead_thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: var(--radius-sm);
  transition: transform var(--transition-normal);
}

.study_lead_feature:hover .study_lead_thumb img {
  transform: scale(1.02);
}

.study_meta_tag {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.study_date {
  font-family: var(--font-ui);
  font-size: var(--text-2xs);
  color: var(--text-muted);
}

.study_lead_title {
  font-family: var(--font-editorial);
  font-size: clamp(1.4rem, 2vw, 1.85rem);
  font-weight: var(--fw-bold);
  color: var(--text-ink);
  line-height: 1.35;
}

.study_lead_title a {
  color: var(--text-ink);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.study_lead_title a:hover {
  color: var(--primary);
}

.study_lead_excerpt {
  font-family: var(--font-body);
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: var(--lh-relaxed);
  display: -webkit-box;
  -webkit-line-clamp: 4;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* Left Column: Accompanying Studies & Briefs (40%) */
.studies_side_col {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.study_side_media_card {
  display: flex;
  gap: var(--space-md);
  align-items: center;
  padding-bottom: var(--space-md);
  border-bottom: var(--hairline);
}

.study_side_thumb {
  width: 110px;
  height: 74px;
  flex-shrink: 0;
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--bg-surface-subtle);
}

.study_side_thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: var(--radius-sm);
}

.study_side_info {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.study_side_title {
  font-family: var(--font-editorial);
  font-size: 0.95rem;
  font-weight: var(--fw-bold);
  color: var(--text-ink);
  line-height: 1.42;
}

.study_side_title a {
  color: var(--text-ink);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.study_side_title a:hover {
  color: var(--primary);
}

.study_side_date {
  font-family: var(--font-ui);
  font-size: var(--text-2xs);
  color: var(--text-muted);
}

.studies_brief_list {
  display: flex;
  flex-direction: column;
}

.study_brief_item {
  padding: 12px 0;
  border-bottom: var(--hairline);
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.study_brief_item:last-child {
  border-bottom: none;
}

.study_brief_title {
  font-family: var(--font-editorial);
  font-size: var(--text-xs);
  font-weight: var(--fw-semibold);
  color: var(--text-ink);
  line-height: 1.45;
}

.study_brief_title a {
  color: var(--text-ink);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.study_brief_title a:hover {
  color: var(--primary);
}

.study_brief_meta {
  font-family: var(--font-ui);
  font-size: var(--text-2xs);
  color: var(--text-muted);
}

/* ==========================================================================
 * 2. Magazine Dual Split (50/50: Digital Issues & Cyber Concepts)
 * ========================================================================== */
.magazine_dual_section {
  width: 100%;
  padding: var(--space-3xl) 0;
  background: var(--bg-surface-subtle);
  border-top: var(--hairline);
  border-bottom: var(--hairline);
}

.magazine_dual_grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
  align-items: start;
}

.magazine_col {
  display: flex;
  flex-direction: column;
}

.magazine_col:first-child {
  padding-left: var(--space-2xl);
  border-left: var(--hairline);
}

.magazine_lead_card {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  padding-bottom: var(--space-md);
  margin-bottom: var(--space-md);
  border-bottom: var(--hairline);
}

.magazine_card_thumb {
  width: 100%;
  aspect-ratio: 16 / 9.5;
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--bg-surface-subtle);
  margin-bottom: 4px;
}

.magazine_card_thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: var(--radius-sm);
  transition: transform var(--transition-normal);
}

.magazine_lead_card:hover .magazine_card_thumb img {
  transform: scale(1.02);
}

.magazine_card_content {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.magazine_card_title {
  font-family: var(--font-editorial);
  font-size: 1.15rem;
  font-weight: var(--fw-bold);
  color: var(--text-ink);
  line-height: 1.4;
}

.magazine_card_title a {
  color: var(--text-ink);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.magazine_card_title a:hover {
  color: var(--primary);
}

.magazine_card_meta {
  font-family: var(--font-ui);
  font-size: var(--text-2xs);
  color: var(--text-muted);
}

.magazine_sub_stream {
  display: flex;
  flex-direction: column;
}

.magazine_mini_row {
  display: flex;
  gap: var(--space-md);
  align-items: center;
  padding: 12px 0;
  border-bottom: var(--hairline);
}

.magazine_mini_thumb {
  width: 76px;
  height: 52px;
  flex-shrink: 0;
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--bg-surface-subtle);
}

.magazine_mini_thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.magazine_mini_title {
  font-family: var(--font-editorial);
  font-size: var(--text-xs);
  font-weight: var(--fw-semibold);
  color: var(--text-ink);
  line-height: 1.42;
  flex: 1;
}

.magazine_mini_title a {
  color: var(--text-ink);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.magazine_mini_title a:hover {
  color: var(--primary);
}

.magazine_text_row {
  padding: 10px 0;
  border-bottom: var(--hairline);
}

.magazine_text_row:last-child {
  border-bottom: none;
}

.magazine_text_title {
  font-family: var(--font-editorial);
  font-size: var(--text-xs);
  font-weight: var(--fw-semibold);
  color: var(--text-ink);
  line-height: 1.45;
}

.magazine_text_title a {
  color: var(--text-ink);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.magazine_text_title a:hover {
  color: var(--primary);
}

/* ==========================================================================
 * 3. Seminars & Conferences Trio Grid
 * ========================================================================== */
.seminars_section {
  width: 100%;
  padding: var(--space-3xl) 0;
  background: var(--background);
}

.seminars_trio_grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-2xl);
  align-items: start;
}

.seminar_card {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  padding-left: var(--space-2xl);
  border-left: var(--hairline);
}

.seminar_thumb {
  width: 100%;
  aspect-ratio: 16 / 9.5;
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--bg-surface-subtle);
  margin-bottom: 4px;
}

.seminar_thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: var(--radius-sm);
  transition: transform var(--transition-normal);
}

.seminar_card:hover .seminar_thumb img {
  transform: scale(1.02);
}

.seminar_body {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.seminar_title {
  font-family: var(--font-editorial);
  font-size: 1.05rem;
  font-weight: var(--fw-bold);
  color: var(--text-ink);
  line-height: 1.42;
}

.seminar_title a {
  color: var(--text-ink);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.seminar_title a:hover {
  color: var(--primary);
}

.seminar_date {
  font-family: var(--font-ui);
  font-size: var(--text-2xs);
  color: var(--text-muted);
}

.seminars_list_col {
  display: flex;
  flex-direction: column;
}

.seminars_list_header {
  font-family: var(--font-editorial);
  font-size: var(--text-sm);
  font-weight: var(--fw-bold);
  color: var(--primary);
  padding-bottom: 8px;
  border-bottom: 2px solid var(--primary);
  margin-bottom: var(--space-xs);
}

.seminar_mini_row {
  padding: 10px 0;
  border-bottom: var(--hairline);
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.seminar_mini_row:last-child {
  border-bottom: none;
}

.seminar_mini_title {
  font-family: var(--font-editorial);
  font-size: var(--text-xs);
  font-weight: var(--fw-semibold);
  color: var(--text-ink);
  line-height: 1.45;
}

.seminar_mini_title a {
  color: var(--text-ink);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.seminar_mini_title a:hover {
  color: var(--primary);
}

.seminar_mini_date {
  font-family: var(--font-ui);
  font-size: var(--text-2xs);
  color: var(--text-muted);
}

/* ==========================================================================
 * Responsive Breakpoints
 * ========================================================================== */
@media (max-width: 991px) {
  .studies_asymmetric_grid,
  .magazine_dual_grid,
  .seminars_trio_grid {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }

  .study_lead_col,
  .magazine_col:first-child,
  .seminar_card {
    padding-left: 0;
    border-left: none;
    padding-bottom: var(--space-xl);
    border-bottom: var(--hairline);
  }
}