/* DramaEduLAB Works Archive - 와이드 입체 전시실 및 전체 스크롤 스타일 */

:root {
  --dal-ivory: #F7F5EE;
  --dal-mint: #DDE9E4;
  --dal-teal: #194F48;
  --dal-teal-hover: #123C36;
  --dal-gold: #CDAF68;
  --dal-gold-light: #EFE4C8;
  --dal-terra: #A85B42;
  --dal-purple: #7856FF;
  --dal-purple-bg: #F4F0FF;
  --dal-purple-border: rgba(120, 86, 255, 0.28);
  --dal-text: #435A57;
  --dal-text-dark: #1D302D;
  --dal-text-muted: #6A827E;
  --dal-border: rgba(25, 79, 72, 0.20);
  --dal-radius-sm: 10px;
  --dal-radius-md: 14px;
  --dal-radius-lg: 18px;
  --dal-shadow-soft: 0 10px 30px rgba(35, 70, 62, 0.08);
  --dal-shadow-card: 0 14px 40px rgba(35, 70, 62, 0.12);
  --dal-shadow-hover: 0 22px 50px rgba(35, 70, 62, 0.18);
}

.dal-archive-page {
  background-color: var(--dal-ivory);
  color: var(--dal-text);
  font-family: inherit;
  overflow-x: hidden;
}

/* ==========================================================================
   1. HERO & WIDE EXHIBITION STAGE
   ========================================================================== */
.dal-hero-section {
  position: relative;
  background-image: url('archive/01_archive_hero_background.webp');
  background-size: cover;
  background-position: center top;
  background-repeat: no-repeat;
  padding: 56px 0 72px;
  min-height: 840px;
}

.dal-hero-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(247, 245, 238, 0.45) 0%, rgba(247, 245, 238, 0.1) 40%, rgba(247, 245, 238, 0.85) 100%);
  pointer-events: none;
}

.dal-hero-container {
  position: relative;
  z-index: 2;
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 40px;
}

.dal-hero-header-row {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 36px;
}

.dal-hero-titles {
  max-width: 640px;
}

.dal-eyebrow {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.16em;
  color: var(--dal-teal);
  text-transform: uppercase;
  margin-bottom: 12px;
}

.dal-hero-title {
  font-size: 44px;
  line-height: 1.25;
  font-weight: 800;
  color: var(--dal-text-dark);
  letter-spacing: -0.02em;
  margin: 0 0 14px 0;
}

.dal-hero-desc {
  font-size: 18px;
  line-height: 1.6;
  color: var(--dal-text);
  margin: 0;
}

.dal-hero-wall-deco {
  display: flex;
  gap: 32px;
  text-align: right;
  opacity: 0.88;
}

.dal-wall-vertical {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.16em;
  color: #7D8E8A;
  line-height: 1.7;
  text-transform: uppercase;
  border-right: 2px solid rgba(25, 79, 72, 0.18);
  padding-right: 18px;
}

.dal-wall-quote {
  max-width: 180px;
  font-size: 14px;
  line-height: 1.5;
  color: #556B67;
  font-style: italic;
}

/* ==========================================================================
   2. FLOATING FILTER BAR
   ========================================================================== */
.dal-filter-wrapper {
  margin-bottom: 48px;
}

.dal-filter-bar {
  display: grid;
  grid-template-columns: 2.2fr 1.1fr 1.1fr 1.1fr 1fr auto;
  gap: 12px;
  align-items: center;
  background: #ffffff;
  padding: 14px 18px;
  border-radius: var(--dal-radius-lg);
  box-shadow: var(--dal-shadow-soft);
  border: 1px solid rgba(25, 79, 72, 0.12);
}

.dal-filter-search {
  position: relative;
  display: flex;
  align-items: center;
}

.dal-filter-search input {
  width: 100%;
  height: 46px;
  padding: 0 40px 0 16px;
  border: 1px solid #DFE5E3;
  border-radius: var(--dal-radius-sm);
  font-size: 15px;
  color: var(--dal-text-dark);
  background: #FBFDFD;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.dal-filter-search input:focus {
  outline: none;
  border-color: var(--dal-teal);
  box-shadow: 0 0 0 3px rgba(25, 79, 72, 0.12);
}

.dal-filter-search .dal-search-icon {
  position: absolute;
  right: 14px;
  color: #7D8E8A;
  pointer-events: none;
}

.dal-filter-select {
  position: relative;
}

.dal-filter-select select {
  width: 100%;
  height: 46px;
  padding: 0 32px 0 14px;
  border: 1px solid #DFE5E3;
  border-radius: var(--dal-radius-sm);
  font-size: 14px;
  color: var(--dal-text-dark);
  background: #FBFDFD;
  appearance: none;
  cursor: pointer;
  transition: border-color 0.2s;
}

.dal-filter-select select:focus {
  outline: none;
  border-color: var(--dal-teal);
}

.dal-filter-select::after {
  content: "";
  position: absolute;
  right: 14px;
  top: 50%;
  transform: translateY(-50%);
  width: 0;
  height: 0;
  border-left: 5px solid transparent;
  border-right: 5px solid transparent;
  border-top: 5px solid #6C807C;
  pointer-events: none;
}

.dal-btn-search {
  height: 46px;
  padding: 0 24px;
  background: var(--dal-teal);
  color: #ffffff;
  border: none;
  border-radius: var(--dal-radius-sm);
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
  transition: background-color 0.2s, transform 0.15s;
}

.dal-btn-search:hover {
  background: var(--dal-teal-hover);
  transform: translateY(-1px);
}

/* ==========================================================================
   3. WIDE EXHIBITION STAGE & 3D GLASS SHOWCASES
   ========================================================================== */
.dal-stage-wrapper {
  position: relative;
  padding-bottom: 24px;
}

.dal-stage-grid {
  display: grid;
  grid-template-columns: 1.15fr 1fr 1fr 1fr;
  gap: 28px;
  align-items: stretch;
}

/* Curator's Pick Stand */
.dal-curator-box {
  position: relative;
  background: #ffffff;
  border-radius: var(--dal-radius-lg);
  padding: 36px 30px;
  box-shadow: var(--dal-shadow-card);
  border: 1px solid rgba(25, 79, 72, 0.16);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  overflow: hidden;
}

.dal-curator-box::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 6px;
  background: linear-gradient(90deg, var(--dal-gold), var(--dal-teal));
}

.dal-curator-badge {
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.18em;
  color: var(--dal-gold);
  text-transform: uppercase;
  margin-bottom: 16px;
}

.dal-curator-title {
  font-size: 24px;
  line-height: 1.35;
  font-weight: 800;
  color: var(--dal-text-dark);
  margin: 0 0 18px 0;
}

.dal-curator-text {
  font-size: 15px;
  line-height: 1.7;
  color: var(--dal-text);
  margin: 0 0 24px 0;
}

.dal-curator-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 15px;
  font-weight: 700;
  color: var(--dal-teal);
  text-decoration: none;
  transition: gap 0.2s, color 0.2s;
  margin-top: auto;
}

.dal-curator-link:hover {
  gap: 10px;
  color: var(--dal-teal-hover);
}

.dal-curator-brand {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: #96A8A4;
  margin-top: 24px;
  text-transform: uppercase;
}

/* Glass Showcase Card (.dal-showcase) */
.dal-showcase {
  position: relative;
  display: flex;
  flex-direction: column;
  background: rgba(255, 255, 255, 0.82);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(25, 79, 72, 0.24);
  border-radius: var(--dal-radius-lg);
  box-shadow: var(--dal-shadow-card);
  padding: 22px 20px 20px;
  transition: transform 0.28s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.28s ease;
  overflow: hidden;
}

/* Upper Diagonal Glass Reflection */
.dal-showcase::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(115deg, rgba(255, 255, 255, 0.65) 0%, rgba(255, 255, 255, 0.1) 32%, transparent 55%);
  pointer-events: none;
  z-index: 3;
}

/* Glass Top Hanger / Brass Light Accent */
.dal-showcase-topline {
  position: relative;
  height: 4px;
  background: linear-gradient(90deg, rgba(205, 175, 104, 0.3), rgba(205, 175, 104, 0.8), rgba(205, 175, 104, 0.3));
  border-radius: 2px;
  margin-bottom: 16px;
  z-index: 2;
}

.dal-showcase:hover {
  transform: translateY(-6px);
  box-shadow: var(--dal-shadow-hover);
}

/* Showcase Artwork Frame */
.dal-showcase-frame {
  position: relative;
  width: 100%;
  aspect-ratio: 4 / 3.8;
  background: #F3F5F4;
  border-radius: var(--dal-radius-md);
  overflow: hidden;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
  margin-bottom: 16px;
  border: 1px solid rgba(25, 79, 72, 0.1);
}

.dal-showcase-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.dal-showcase-frame a,
.dal-gallery-frame a {
  display: block;
  width: 100%;
  height: 100%;
}

.dal-showcase-frame a:focus-visible,
.dal-gallery-frame a:focus-visible {
  outline: 3px solid var(--dal-purple);
  outline-offset: -3px;
}

.dal-showcase:hover .dal-showcase-frame img {
  transform: scale(1.03);
}

/* Chip tags */
.dal-card-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 10px;
}

.dal-chip {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  padding: 3px 8px;
  border-radius: 6px;
  background: #EFF4F2;
  color: var(--dal-teal);
  border: 1px solid rgba(25, 79, 72, 0.12);
}

.dal-chip-age {
  background: #F8F4EB;
  color: #8C6F2A;
  border-color: rgba(205, 175, 104, 0.3);
}

.dal-chip-type {
  background: #F2F5F8;
  color: #3B5F75;
  border-color: rgba(59, 95, 117, 0.2);
}

.dal-showcase-title {
  font-size: 18px;
  line-height: 1.35;
  font-weight: 800;
  color: var(--dal-text-dark);
  margin: 0 0 8px 0;
}

.dal-showcase-summary {
  font-size: 13px;
  line-height: 1.55;
  color: var(--dal-text);
  margin: 0 0 16px 0;
  flex-grow: 1;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* Author Mini Block */
.dal-card-author {
  display: flex;
  align-items: center;
  gap: 10px;
  padding-top: 12px;
  margin-bottom: 16px;
  border-top: 1px solid rgba(25, 79, 72, 0.1);
}

.dal-author-avatar {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  object-fit: cover;
  border: 1.5px solid #ffffff;
  box-shadow: 0 2px 6px rgba(0,0,0,0.1);
}

.dal-author-info {
  display: flex;
  flex-direction: column;
}

.dal-author-name {
  font-size: 13px;
  font-weight: 700;
  color: var(--dal-text-dark);
  text-decoration: none;
}

.dal-author-spec {
  font-size: 11px;
  color: var(--dal-text-muted);
}

/* Actions Row */
.dal-card-actions {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.dal-btn-work {
  width: 100%;
  height: 40px;
  background: var(--dal-teal);
  color: #ffffff;
  border: none;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  text-decoration: none;
  transition: background-color 0.2s;
}

.dal-btn-work:hover {
  background: var(--dal-teal-hover);
  color: #ffffff;
}

.dal-card-subactions {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 6px;
}

.dal-btn-sub {
  height: 32px;
  padding: 0 6px;
  font-size: 11px;
  font-weight: 600;
  color: var(--dal-text);
  background: #F5F7F6;
  border: 1px solid #DFE5E3;
  border-radius: 6px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.18s;
  white-space: nowrap;
}

.dal-btn-sub:hover {
  background: #EBF1EF;
  color: var(--dal-text-dark);
}

/* Purple Accent for Small Group Link */
.dal-btn-group {
  background: var(--dal-purple-bg);
  color: var(--dal-purple);
  border-color: var(--dal-purple-border);
  padding-inline: 12px;
}

.dal-btn-group:hover {
  background: #ECE5FF;
  color: #633CE6;
  border-color: var(--dal-purple);
}

/* Cheer Heart Button */
.dal-btn-cheer.liked {
  color: #E24B5D;
  background: #FFF1F3;
  border-color: rgba(226, 75, 93, 0.3);
}

/* ==========================================================================
   4. TRANSITION BRIDGE SECTION
   ========================================================================== */
.dal-transition-bridge {
  position: relative;
  text-align: center;
  padding: 64px 20px;
}

.dal-bridge-inner {
  max-width: 600px;
  margin: 0 auto;
  position: relative;
}

.dal-bridge-inner::before,
.dal-bridge-inner::after {
  content: "";
  position: absolute;
  top: 50%;
  width: 80px;
  height: 1px;
  background: rgba(25, 79, 72, 0.2);
}

.dal-bridge-inner::before { left: -100px; }
.dal-bridge-inner::after { right: -100px; }

.dal-bridge-title {
  font-size: 22px;
  font-weight: 800;
  color: var(--dal-teal);
  margin: 0 0 8px 0;
  letter-spacing: -0.01em;
}

.dal-bridge-desc {
  font-size: 15px;
  color: var(--dal-text);
  margin: 0;
}

/* ==========================================================================
   5. WORKS GALLERY SECTION (더 많은 작품을 만나보세요)
   ========================================================================== */
.dal-gallery-section {
  position: relative;
  background-image: url('archive/02_works_gallery_background.webp');
  background-size: cover;
  background-position: center center;
  padding: 88px 0 96px;
}

.dal-gallery-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(255, 255, 255, 0.45);
  pointer-events: none;
}

.dal-gallery-container {
  position: relative;
  z-index: 2;
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 40px;
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 48px;
  align-items: start;
}

.dal-gallery-intro {
  position: sticky;
  top: 100px;
}

.dal-gallery-title {
  font-size: 32px;
  line-height: 1.3;
  font-weight: 800;
  color: var(--dal-text-dark);
  margin: 0 0 16px 0;
}

.dal-gallery-desc {
  font-size: 16px;
  line-height: 1.65;
  color: var(--dal-text);
  margin: 0 0 24px 0;
}

.dal-gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

/* Gallery Work Card */
.dal-gallery-card {
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid rgba(25, 79, 72, 0.18);
  border-radius: var(--dal-radius-md);
  box-shadow: 0 8px 24px rgba(35, 70, 62, 0.08);
  padding: 16px;
  display: flex;
  flex-direction: column;
  transition: transform 0.24s ease, box-shadow 0.24s ease;
}

.dal-gallery-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 36px rgba(35, 70, 62, 0.14);
}

.dal-gallery-frame {
  width: 100%;
  aspect-ratio: 16 / 10;
  border-radius: 10px;
  overflow: hidden;
  background: #E8ECEB;
  margin-bottom: 12px;
  border: 1px solid rgba(25, 79, 72, 0.08);
}

.dal-gallery-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.dal-gallery-card:hover .dal-gallery-frame img {
  transform: scale(1.03);
}

/* Creator pages: keep seed artwork below its source resolution. */
.dal-author-detail-page .dal-creator-portrait {
  display: block;
  width: 80px;
  height: 80px;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid #fff;
  box-shadow: 0 5px 15px rgba(35, 70, 62, .14);
}
.dal-author-detail-page .dal-creator-works {
  grid-template-columns: repeat(auto-fit, minmax(250px, 280px));
  justify-content: start;
}
.dal-author-detail-page .dal-creator-works .dal-gallery-frame {
  aspect-ratio: 400 / 426;
  background: #f5f3ed;
}
.dal-author-detail-page .dal-creator-works .dal-gallery-frame img,
.dal-author-detail-page .dal-creator-works .dal-gallery-card:hover .dal-gallery-frame img {
  object-fit: contain;
  object-position: center;
  transform: none;
}
@media (max-width: 600px) {
  .dal-author-detail-page .dal-creator-works {
    justify-content: center;
  }
}

/* Work detail: preserve low-resolution cover artwork without enlargement or crop. */
.dal-work-detail-page .dal-detail-layout {
  display: grid;
  grid-template-columns: minmax(240px, 300px) minmax(0, 1fr);
  gap: 48px;
  align-items: start;
}

.dal-work-detail-page .dal-detail-card .dal-showcase {
  width: 100%;
  max-width: 300px;
  margin-inline: auto;
}

.dal-work-detail-page .dal-detail-card .dal-showcase-frame {
  aspect-ratio: 400 / 426;
  margin-bottom: 0;
  background: #f5f3ed;
}

.dal-work-detail-page .dal-detail-card .dal-showcase-frame img,
.dal-work-detail-page .dal-detail-card .dal-showcase:hover .dal-showcase-frame img {
  object-fit: contain;
  object-position: center;
  transform: none;
}

.dal-work-detail-page .dal-detail-recommendations {
  grid-template-columns: repeat(3, minmax(0, 300px));
  justify-content: center;
}

.dal-work-detail-page .dal-detail-recommendations .dal-gallery-card {
  width: 100%;
  max-width: 300px;
}

.dal-work-detail-page .dal-detail-recommendations .dal-gallery-frame {
  aspect-ratio: 400 / 426;
  max-height: 320px;
  background: #f5f3ed;
}

.dal-work-detail-page .dal-detail-recommendations .dal-gallery-frame img,
.dal-work-detail-page .dal-detail-recommendations .dal-gallery-card:hover .dal-gallery-frame img {
  object-fit: contain;
  object-position: center;
  transform: none;
}

.dal-gallery-card .dal-showcase-title {
  font-size: 16px;
  margin-bottom: 6px;
}

.dal-gallery-card .dal-showcase-summary {
  font-size: 12px;
  margin-bottom: 12px;
}

/* Empty State */
.dal-empty-results {
  grid-column: 1 / -1;
  text-align: center;
  padding: 64px 20px;
  background: rgba(255, 255, 255, 0.85);
  border-radius: var(--dal-radius-md);
  border: 1px dashed rgba(25, 79, 72, 0.25);
}

.dal-empty-results p {
  font-size: 16px;
  color: var(--dal-text);
  margin-bottom: 16px;
}

/* ==========================================================================
   6. FLOW GUIDE SECTION (아카이브 - 소모임 연결)
   ========================================================================== */
.dal-flow-guide-section {
  background: #ffffff;
  padding: 48px 0;
  border-top: 1px solid rgba(25, 79, 72, 0.1);
  border-bottom: 1px solid rgba(25, 79, 72, 0.1);
}

.dal-flow-container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
  text-align: center;
}

.dal-flow-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--dal-text-dark);
  margin: 0 0 24px 0;
}

.dal-flow-title span {
  color: var(--dal-purple);
  font-weight: 800;
}

.dal-flow-steps {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

.dal-flow-step {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 20px;
  background: #F7FAF9;
  border: 1px solid #DCE6E3;
  border-radius: var(--dal-radius-sm);
  font-size: 14px;
  font-weight: 700;
  color: var(--dal-text-dark);
}

.dal-flow-step.highlight {
  background: var(--dal-purple-bg);
  border-color: var(--dal-purple-border);
  color: var(--dal-purple);
}

.dal-flow-arrow {
  color: #98A8A5;
  font-size: 16px;
}

/* ==========================================================================
   7. VIDEO LECTURE ROOM (.dal-video-room)
   ========================================================================== */
.dal-video-room {
  position: relative;
  background-image: url('archive/03_video_room_background.webp');
  background-size: cover;
  background-position: center center;
  padding: 96px 0 108px;
}

.dal-video-room::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(232, 242, 243, 0.88) 0%, rgba(247, 250, 248, 0.88) 100%);
  pointer-events: none;
}

.dal-video-container {
  position: relative;
  z-index: 2;
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 40px;
}

.dal-video-header-row {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 40px;
}

.dal-video-title {
  font-size: 34px;
  line-height: 1.25;
  font-weight: 800;
  color: var(--dal-text-dark);
  margin: 0 0 10px 0;
}

.dal-video-desc {
  font-size: 16px;
  color: var(--dal-text);
  margin: 0;
}

.dal-video-header-right {
  display: flex;
  align-items: center;
  gap: 16px;
}

.dal-btn-all-videos {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 15px;
  font-weight: 700;
  color: var(--dal-teal);
  text-decoration: none;
}

.dal-btn-all-videos:hover {
  text-decoration: underline;
}

/* Video Cards Grids */
.dal-video-grid-top {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin-bottom: 36px;
}

.dal-video-card {
  background: #ffffff;
  border-radius: var(--dal-radius-md);
  box-shadow: var(--dal-shadow-card);
  border: 1px solid rgba(25, 79, 72, 0.14);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
  cursor: pointer;
}

.dal-video-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--dal-shadow-hover);
}

.dal-video-media {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  background: #1A2624;
  overflow: hidden;
}

.dal-video-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.35s ease, opacity 0.25s;
}

.dal-video-card:hover .dal-video-media img {
  transform: scale(1.04);
  opacity: 0.9;
}

.dal-video-play-btn {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: rgba(25, 79, 72, 0.85);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  box-shadow: 0 4px 14px rgba(0,0,0,0.25);
  transition: transform 0.2s, background-color 0.2s;
}

.dal-video-card:hover .dal-video-play-btn {
  transform: translate(-50%, -50%) scale(1.1);
  background: var(--dal-teal);
}

.dal-video-play-btn svg {
  margin-left: 3px;
}

.dal-video-duration {
  position: absolute;
  right: 12px;
  bottom: 12px;
  background: rgba(0, 0, 0, 0.72);
  color: #ffffff;
  font-size: 12px;
  font-weight: 700;
  padding: 3px 7px;
  border-radius: 4px;
}

.dal-video-content {
  padding: 22px 20px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.dal-video-card-title {
  font-size: 18px;
  line-height: 1.35;
  font-weight: 800;
  color: var(--dal-text-dark);
  margin: 10px 0 8px 0;
}

.dal-video-card-summary {
  font-size: 13px;
  line-height: 1.55;
  color: var(--dal-text);
  margin: 0 0 16px 0;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* Secondary Lower Video Grid (4 columns) */
.dal-video-grid-bottom {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-bottom: 48px;
}

.dal-video-card-compact {
  background: #ffffff;
  border-radius: var(--dal-radius-sm);
  border: 1px solid rgba(25, 79, 72, 0.12);
  box-shadow: var(--dal-shadow-soft);
  overflow: hidden;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.dal-video-card-compact:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 30px rgba(35, 70, 62, 0.12);
}

.dal-video-card-compact .dal-video-media {
  aspect-ratio: 16 / 9;
}

.dal-video-card-compact .dal-video-play-btn {
  width: 40px;
  height: 40px;
}

.dal-video-card-compact .dal-video-content {
  padding: 14px 14px 16px;
}

.dal-video-card-compact .dal-video-card-title {
  font-size: 14px;
  margin: 6px 0 8px;
}

.dal-video-bottom-action {
  text-align: center;
}

.dal-btn-video-more {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 48px;
  padding: 0 36px;
  background: #ffffff;
  color: var(--dal-teal);
  border: 1.5px solid var(--dal-teal);
  border-radius: var(--dal-radius-sm);
  font-size: 15px;
  font-weight: 700;
  text-decoration: none;
  transition: all 0.2s;
}

.dal-btn-video-more:hover {
  background: var(--dal-teal);
  color: #ffffff;
}

/* ==========================================================================
   8. VIDEO MODAL POPUP
   ========================================================================== */
.dal-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.82);
  z-index: 99999;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.25s, visibility 0.25s;
}

.dal-modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.dal-modal-dialog {
  position: relative;
  width: 100%;
  max-width: 900px;
  background: #000000;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0,0,0,0.5);
}

.dal-modal-close {
  position: absolute;
  top: 14px;
  right: 14px;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.2);
  color: #ffffff;
  border: none;
  font-size: 20px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10;
  transition: background-color 0.2s;
}

.dal-modal-close:hover {
  background: rgba(255, 255, 255, 0.4);
}

.dal-modal-player-wrap {
  position: relative;
  width: 100%;
  padding-top: 56.25%; /* 16:9 */
}

.dal-modal-player-wrap iframe,
.dal-modal-player-wrap video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: none;
}

/* ==========================================================================
   9. RESPONSIVE BREAKPOINTS (명세서 7번 기준 준수)
   ========================================================================== */
/* Tablet Landscape (1024px ~ 1439px) */
@media (max-width: 1439px) {
  .dal-hero-container,
  .dal-gallery-container,
  .dal-video-container {
    padding: 0 32px;
  }

  .dal-stage-grid {
    grid-template-columns: 1fr 1fr;
    gap: 20px;
  }

  .dal-gallery-container {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .dal-gallery-intro {
    position: static;
    text-align: center;
    max-width: 680px;
    margin: 0 auto;
  }

  .dal-gallery-grid {
    grid-template-columns: repeat(3, 1fr);
  }

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

/* Tablet Portrait (768px ~ 1023px) */
@media (max-width: 1023px) {
  .dal-filter-bar {
    grid-template-columns: 1fr 1fr;
    gap: 10px;
  }

  .dal-filter-search {
    grid-column: 1 / -1;
  }

  .dal-btn-search {
    grid-column: 1 / -1;
    justify-content: center;
  }

  .dal-hero-header-row {
    flex-direction: column;
    gap: 20px;
  }

  .dal-hero-wall-deco {
    display: none; /* Hide wall deco on tablet/mobile to preserve space */
  }

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

  .dal-work-detail-page .dal-detail-layout {
    grid-template-columns: minmax(220px, 280px) minmax(0, 1fr);
    gap: 32px;
  }

  .dal-work-detail-page .dal-detail-recommendations {
    grid-template-columns: repeat(2, minmax(0, 280px));
  }

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

/* Mobile Devices (767px and down) */
@media (max-width: 767px) {
  .dal-hero-section {
    padding: 36px 0 48px;
    min-height: auto;
  }

  .dal-hero-container,
  .dal-gallery-container,
  .dal-video-container {
    padding: 0 18px;
  }

  .dal-hero-title {
    font-size: 28px;
  }

  .dal-hero-desc {
    font-size: 15px;
  }

  .dal-filter-bar {
    grid-template-columns: 1fr;
    padding: 14px;
  }

  .dal-stage-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .dal-showcase:hover {
    transform: none; /* Prevent touch jitter */
  }

  .dal-gallery-grid {
    grid-template-columns: 1fr;
  }

  .dal-work-detail-page .dal-detail-card {
    padding: 24px !important;
  }

  .dal-work-detail-page .dal-detail-layout {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .dal-work-detail-page .dal-detail-card .dal-showcase,
  .dal-work-detail-page .dal-detail-recommendations .dal-gallery-card {
    max-width: 280px;
  }

  .dal-work-detail-page .dal-detail-recommendations {
    grid-template-columns: minmax(0, 280px);
  }

  .dal-video-header-row {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }

  .dal-video-grid-top {
    grid-template-columns: 1fr;
  }

  .dal-video-grid-bottom {
    grid-template-columns: 1fr;
  }

  .dal-flow-steps {
    flex-direction: column;
    gap: 10px;
  }

  .dal-flow-arrow {
    transform: rotate(90deg);
  }

  .dal-bridge-inner::before,
  .dal-bridge-inner::after {
    display: none;
  }
}