/* =====================================================
   platform-updates.css
   플랫폼 업데이트 노트 - 타임라인 카드 레이아웃
   Toss Design System 적용
   ===================================================== */

/* === 1. 페이지 헤더 === */
.page-header {
  margin-bottom: 8px;
}

/* === 2. 필터 바 (카테고리 탭) === */
.updates-filter-bar {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 8px;
}

.filter-tab {
  padding: 8px 16px;
  border-radius: 99px;
  border: 1px solid var(--toss-line-normal, #E5E8EB);
  background: var(--toss-bg-white, #FFFFFF);
  color: var(--toss-text-secondary, #4E5968);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s ease;
  font-family: inherit;
}

.filter-tab:hover {
  border-color: var(--toss-blue-primary, #3182F6);
  color: var(--toss-blue-primary, #3182F6);
}

.filter-tab.active {
  background: var(--toss-blue-primary, #3182F6);
  border-color: var(--toss-blue-primary, #3182F6);
  color: white;
}

/* === 3. 타임라인 컨테이너 === */
.updates-timeline {
  display: flex;
  flex-direction: column;
  gap: 0;
  position: relative;
  padding-left: 4px;
}

.updates-timeline::before {
  content: '';
  position: absolute;
  left: 23px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: var(--toss-line-normal, #E5E8EB);
  border-radius: 1px;
}

/* === 4. 타임라인 카드 아이템 === */
.update-item {
  display: flex;
  gap: 20px;
  padding: 12px 0 20px 0;
  position: relative;
}

.update-item__dot {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1;
  position: relative;
}

/* 카테고리별 도트 색상 */
.update-item__dot.cat-feature     { background: #E8F3FF; color: #3182F6; }
.update-item__dot.cat-improvement { background: #E8FFF4; color: #22C55E; }
.update-item__dot.cat-bugfix      { background: #FFF3E8; color: #F97316; }
.update-item__dot.cat-notice      { background: #F3E8FF; color: #A855F7; }
.update-item__dot.cat-maintenance { background: #F2F4F6; color: #8B95A1; }
.update-item__dot.cat-policy      { background: #FFF0F0; color: #EF4444; }

/* === 5. 카드 본문 === */
.update-item__card {
  flex: 1;
  background: var(--toss-bg-white, #FFFFFF);
  border: 1px solid var(--toss-line-normal, #E5E8EB);
  border-radius: 16px;
  padding: 20px 24px;
  cursor: pointer;
  transition: box-shadow 0.15s ease, transform 0.1s ease;
  text-decoration: none;
  display: block;
  color: inherit;
}

.update-item__card:hover {
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
  transform: translateY(-1px);
}

/* 중요 업데이트 테두리 */
.update-item__card.importance-critical {
  border-color: #EF4444;
}
.update-item__card.importance-high {
  border-color: #F97316;
}

.update-item__meta {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 10px;
  flex-wrap: wrap;
}

/* === 6. 카테고리 배지 === */
.category-badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  border-radius: 99px;
  font-size: 12px;
  font-weight: 600;
  line-height: 1.4;
}

.category-badge.feature     { background: #E8F3FF; color: #3182F6; }
.category-badge.improvement { background: #E8FFF4; color: #22C55E; }
.category-badge.bugfix      { background: #FFF3E8; color: #F97316; }
.category-badge.notice      { background: #F3E8FF; color: #A855F7; }
.category-badge.maintenance { background: #F2F4F6; color: #8B95A1; }
.category-badge.policy      { background: #FFF0F0; color: #EF4444; }

/* 중요도 뱃지 */
.importance-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 8px;
  border-radius: 99px;
  font-size: 11px;
  font-weight: 700;
  line-height: 1.4;
}

.importance-badge.critical { background: #FEE2E2; color: #EF4444; }
.importance-badge.high     { background: #FFF3E8; color: #F97316; }

/* NEW 뱃지 */
.new-badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 7px;
  border-radius: 99px;
  font-size: 10px;
  font-weight: 800;
  background: #3182F6;
  color: white;
  letter-spacing: 0.5px;
}

.update-item__date {
  font-size: 13px;
  color: var(--toss-text-tertiary, #8B95A1);
  margin-left: auto;
}

.update-item__title {
  font-size: 16px;
  font-weight: 700;
  color: var(--toss-text-primary, #191F28);
  margin: 0 0 8px 0;
  line-height: 1.4;
}

.update-item__excerpt {
  font-size: 14px;
  color: var(--toss-text-secondary, #4E5968);
  line-height: 1.6;
  margin: 0;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* === 7. 빈 상태 === */
.empty-updates {
  text-align: center;
  padding: 80px 20px;
  color: var(--toss-text-tertiary, #8B95A1);
}

.empty-updates i {
  display: block;
  margin-bottom: 16px;
}

.empty-updates p {
  font-size: 15px;
  margin: 0;
}

/* === 8. 스켈레톤 === */
.skeleton-card {
  background: var(--toss-bg-white, #FFFFFF);
  border: 1px solid var(--toss-line-normal, #E5E8EB);
  border-radius: 16px;
  padding: 20px 24px;
}

@keyframes skeleton-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.skeleton-bone {
  background: var(--toss-line-normal, #E5E8EB);
  border-radius: 4px;
  animation: skeleton-pulse 1.5s ease-in-out infinite;
}

/* === 9. 상세 페이지 아티클 === */
.platform-article-container {
  max-width: 700px;
  margin: 0 auto;
  padding: 24px 16px 120px;
}

.platform-article__header {
  margin-bottom: 32px;
}

.platform-article__title {
  font-size: 28px;
  font-weight: 800;
  color: var(--toss-text-primary, #191F28);
  line-height: 1.35;
  margin: 16px 0 12px;
}

.platform-article__body {
  font-size: 16px;
  line-height: 1.8;
  color: var(--toss-text-primary, #191F28);
  overflow-wrap: break-word;
  word-break: break-word;
}

.platform-article__body h1,
.platform-article__body h2,
.platform-article__body h3 {
  margin: 24px 0 12px;
  font-weight: 700;
}

.platform-article__body h1 { font-size: 24px; }
.platform-article__body h2 { font-size: 20px; }
.platform-article__body h3 { font-size: 18px; }
.platform-article__body p  { margin: 0 0 16px; }

.platform-article__body ul,
.platform-article__body ol {
  padding-left: 24px;
  margin: 0 0 16px;
}

.platform-article__body li { margin-bottom: 6px; }

.platform-article__body blockquote {
  border-left: 4px solid #3182F6;
  padding: 12px 16px;
  margin: 16px 0;
  background: #F0F6FF;
  border-radius: 0 8px 8px 0;
  color: var(--toss-text-secondary, #4E5968);
}

.platform-article__body img {
  max-width: 100%;
  border-radius: 12px;
  margin: 16px 0;
}

.platform-article__body pre {
  background: #F2F4F6;
  padding: 16px;
  border-radius: 8px;
  overflow-x: auto;
  font-size: 14px;
}

.platform-article__body code {
  background: #F2F4F6;
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 14px;
}

/* 테이블 스크롤 래퍼 — 모바일에서 가로 스크롤 지원 */
.platform-article__table-wrap {
  position: relative;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  margin: 16px 0;
  border-radius: 12px;
  border: 1px solid var(--toss-line-normal, #E5E8EB);
}

/* 스크롤 가능 힌트 — 테이블이 넘칠 때 오른쪽 페이드 표시 */
.platform-article__table-wrap.is-scrollable::after {
  content: '';
  position: absolute;
  right: 0;
  top: 0;
  bottom: 0;
  width: 32px;
  background: linear-gradient(to right, transparent, var(--toss-bg-white, #FFFFFF));
  border-radius: 0 12px 12px 0;
  pointer-events: none;
  transition: opacity 0.2s;
}

/* 스크롤이 끝에 도달하면 페이드 숨김 */
.platform-article__table-wrap.is-scrolled-end::after {
  opacity: 0;
}

.platform-article__body table {
  width: 100%;
  min-width: 480px;
  border-collapse: separate;
  border-spacing: 0;
  font-size: 14px;
  border-radius: 12px;
  overflow: hidden;
}

/* 래퍼 없이 직접 존재하는 테이블 (JS 미실행 시 fallback) */
.platform-article__body > table {
  border: 1px solid var(--toss-line-normal, #E5E8EB);
  margin: 16px 0;
}

/* 래퍼 안의 테이블은 border 제거 (래퍼가 border 담당) */
.platform-article__table-wrap table {
  border: none;
  border-radius: 0;
  margin: 0;
}

.platform-article__body thead {
  background: var(--toss-bg-base, #F2F4F6);
}

.platform-article__body th,
.platform-article__body td {
  padding: 12px 16px;
  text-align: left;
  line-height: 1.5;
  border-bottom: 1px solid var(--toss-line-normal, #E5E8EB);
  border-right: 1px solid var(--toss-line-normal, #E5E8EB);
}

.platform-article__body th:last-child,
.platform-article__body td:last-child {
  border-right: none;
}

.platform-article__body th {
  font-weight: 700;
  color: var(--toss-text-secondary, #4E5968);
  font-size: 13px;
}

.platform-article__body td {
  color: var(--toss-text-primary, #191F28);
}

.platform-article__body tr:last-child td {
  border-bottom: none;
}

.platform-article__body tbody tr:hover {
  background: var(--toss-bg-base, #F9FAFB);
}

/* === 10. 대시보드 위젯 — 카드 그리드 === */
.widget-updates-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.widget-update-card {
  position: relative;
  display: flex;
  flex-direction: column;
  background: var(--toss-bg-white, #FFFFFF);
  border: 1px solid var(--toss-line-normal, #E5E8EB);
  border-radius: 14px;
  overflow: hidden;
  cursor: pointer;
  text-decoration: none;
  color: inherit;
  transition: box-shadow 0.18s ease, transform 0.12s ease;
}

.widget-update-card:hover {
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.07);
  transform: translateY(-2px);
}


.widget-update-card__body {
  padding: 14px 16px 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  flex: 1;
}

.widget-update-card__meta {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

.widget-update-card__badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  border-radius: 99px;
  font-size: 11px;
  font-weight: 700;
  line-height: 1.4;
}
.widget-update-card__badge.feature     { background: #E8F3FF; color: #3182F6; }
.widget-update-card__badge.improvement { background: #E8FFF4; color: #22C55E; }
.widget-update-card__badge.bugfix      { background: #FFF3E8; color: #F97316; }
.widget-update-card__badge.notice      { background: #F3E8FF; color: #A855F7; }
.widget-update-card__badge.maintenance { background: #F2F4F6; color: #8B95A1; }
.widget-update-card__badge.policy      { background: #FFF0F0; color: #EF4444; }

.widget-update-card__date {
  font-size: 11px;
  color: var(--toss-text-tertiary, #8B95A1);
  margin-left: auto;
}

.widget-update-card__title {
  font-size: 14px;
  font-weight: 700;
  color: var(--toss-text-primary, #191F28);
  line-height: 1.45;
  margin: 0;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.widget-update-card__excerpt {
  font-size: 12px;
  color: var(--toss-text-secondary, #4E5968);
  line-height: 1.5;
  margin: 0;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* 위젯 스켈레톤 */
.widget-updates-grid .skeleton-card {
  border-radius: 14px;
  padding: 0;
  overflow: hidden;
}
.widget-updates-grid .skeleton-card__body {
  padding: 14px 16px 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

/* 위젯 반응형 */
@media (max-width: 900px) {
  .widget-updates-grid {
    grid-template-columns: 1fr;
    gap: 10px;
  }
  .widget-update-card__body {
    padding: 12px 14px 14px;
  }
}

/* === 11. 모바일 반응형 === */
@media (max-width: 768px) {
  .updates-timeline::before {
    left: 19px;
  }

  .update-item__dot {
    width: 36px;
    height: 36px;
  }

  .update-item__dot svg {
    width: 16px;
    height: 16px;
  }

  .update-item {
    gap: 14px;
  }

  .update-item__card {
    padding: 16px;
    border-radius: 12px;
  }

  .update-item__title {
    font-size: 15px;
  }

  .update-item__excerpt {
    font-size: 13px;
  }

  .platform-article__title {
    font-size: 22px;
  }

  .platform-article__body {
    font-size: 15px;
  }

  .platform-article__body table {
    font-size: 13px;
    min-width: 420px;
  }

  .platform-article__body th,
  .platform-article__body td {
    padding: 10px 12px;
  }

  .updates-filter-bar {
    gap: 6px;
  }

  .filter-tab {
    padding: 6px 12px;
    font-size: 13px;
  }
}

@media (max-width: 480px) {
  .update-item__meta {
    gap: 6px;
  }

  .update-item__date {
    font-size: 12px;
    margin-left: 0;
    width: 100%;
    margin-top: 4px;
  }

  .platform-article-container {
    padding: 16px 12px 80px;
  }
}