/* 블로그 화면. cpaytm-homepage 의 콘텐츠 화면 조판을 그대로 옮겼다 */

:root {
  --blog-ink: #1d1d1b;
  --blog-body: #333333;
  --blog-sub: #555555;
  --blog-mute: #737373;
  --blog-faint: #8a8a87;
  --blog-line: #d9d9d9;
  --blog-line-soft: #e2e2e2;
  --blog-card-line: #dddddd;
  --blog-chip: #f1f1f1;
}

.blog { min-height: calc(100vh - var(--topbar-height)); color: var(--blog-ink); }
.blog--list { background: #ffffff; }
.blog--post { background: #fbfbfb; }

.blog-wrap { margin: 0 auto; max-width: 1280px; padding: 32px 20px; }
.blog-band { border-bottom: 1px solid var(--blog-line); }

.blog-title {
  font-size: 30px;
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: 1.2;
}

/* 검색 */

/* 제목과 검색을 한 줄에 두고 세로 가운데로 맞춘다 */
.blog-head { display: flex; align-items: center; gap: 24px; }
.blog-head .blog-title { flex: none; }

.blog-search { position: relative; display: block; flex: 1; min-width: 0; }

.blog-search svg {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--blog-mute);
  pointer-events: none;
}

.blog-search input {
  height: 48px;
  width: 100%;
  padding: 0 16px 0 44px;
  border: 1px solid var(--blog-line);
  border-radius: 2px;
  background: #fff;
  font-size: 14px;
  outline: none;
}

.blog-search input:focus { border-color: var(--blog-ink); }

/* 태그 탭 */

.blog-tabs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 4px;
  padding: 16px 20px;
  margin: 0 auto;
  max-width: 1280px;
}

.blog-tab {
  padding: 6px 12px;
  border: none;
  border-radius: 2px;
  background: transparent;
  font-size: 14px;
  font-weight: 600;
  color: var(--blog-sub);
  cursor: pointer;
  transition: background 150ms, color 150ms;
}

.blog-tab:hover { background: var(--blog-chip); color: var(--blog-ink); }

.blog-tab[aria-pressed="true"] { background: var(--color-primary); color: #fff; }

.blog-tab__count { margin-left: 6px; font-size: 12px; font-weight: 500; opacity: 0.6; }

/* 카드 목록 */

.blog-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: 1fr;
  padding: 48px 20px;
  margin: 0 auto;
  max-width: 1280px;
}

.blog-card {
  display: flex;
  flex-direction: column;
  padding: 16px;
  border: 1px solid var(--blog-card-line);
  border-radius: 4px;
  background: #fff;
  transition: transform 150ms, border-color 150ms, box-shadow 150ms;
}

.blog-card:hover {
  transform: translateY(-2px);
  border-color: var(--blog-ink);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
}

.blog-card__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 4px 8px;
  font-size: 12px;
  font-weight: 600;
  color: var(--blog-ink);
}

.blog-card__dot { color: #cfcfcf; }
.blog-card__read { display: inline-flex; align-items: center; gap: 4px; color: var(--blog-mute); }

.blog-card__title { margin-top: 12px; font-size: 16px; font-weight: 600; line-height: 1.4; }

.blog-card__summary {
  margin-top: 8px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--blog-sub);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.blog-card__tags { margin-top: 12px; display: flex; flex-wrap: wrap; gap: 6px; }

.blog-chip {
  padding: 2px 6px;
  border-radius: 2px;
  background: var(--blog-chip);
  font-size: 11px;
  font-weight: 500;
  color: var(--blog-sub);
}

.blog-empty { padding: 80px 20px; text-align: center; font-size: 14px; color: var(--blog-mute); }

/* 글 화면 */

.post-wrap { margin: 0 auto; max-width: 1024px; padding: 40px 20px; }
.post-wrap.has-toc { max-width: 1280px; }

.post-back {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 600;
  color: var(--blog-sub);
}

.post-back:hover { color: var(--blog-ink); }

/* 로컬에서만 나오는 글 복사 단추 */
.post-lead { display: flex; align-items: center; justify-content: space-between; gap: 16px; }

.post-copy {
  flex: none;
  padding: 4px 10px;
  border: 1px solid transparent;
  border-radius: 3px;
  background: transparent;
  font: inherit;
  font-size: 13px;
  color: var(--blog-faint);
  opacity: 0.45;
  cursor: pointer;
  transition: opacity 150ms, color 150ms, border-color 150ms;
}

.post-copy:hover { opacity: 1; color: var(--blog-sub); border-color: var(--blog-line); }
.post-copy:focus-visible { opacity: 1; }

.post-head { margin-top: 32px; padding-bottom: 32px; border-bottom: 1px solid var(--blog-line); }
.post-date { font-size: 14px; font-weight: 600; color: var(--blog-ink); }
.post-date span { margin-left: 8px; font-weight: 400; color: var(--blog-mute); }

.post-title {
  margin-top: 16px;
  max-width: 56rem;
  font-size: 32px;
  font-weight: 600;
  line-height: 1.22;
  letter-spacing: -0.02em;
}

.post-summary { margin-top: 20px; max-width: 56rem; font-size: 17px; line-height: 1.75; color: var(--blog-sub); }
.post-meta { margin-top: 24px; display: flex; flex-wrap: wrap; align-items: center; gap: 8px; }
.post-meta .blog-card__read { font-size: 14px; }

.post-cover {
  margin-top: 40px;
  width: 100%;
  height: auto;
  border: 1px solid #e5e5e5;
  border-radius: 4px;
  object-fit: cover;
}

/* 목차 */

.post-toc { display: none; }

.post-toc__label {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--blog-faint);
}

.post-toc ul { margin-top: 16px; border-left: 1px solid var(--blog-line-soft); }

.post-toc a {
  display: block;
  margin-left: -1px;
  padding: 6px 0 6px 16px;
  border-left: 1px solid transparent;
  font-size: 14px;
  line-height: 1.6;
  color: var(--blog-mute);
  transition: color 150ms, border-color 150ms;
}

.post-toc a.lv3 { padding-left: 24px; }
.post-toc a:hover { border-left-color: #b5b5b5; color: var(--blog-ink); }
.post-toc a.is-active { border-left-color: var(--blog-ink); color: var(--blog-ink); font-weight: 600; }

/* 본문 */

.post-body { max-width: 56rem; padding: 40px 0; font-size: 18px; line-height: 2.25rem; color: var(--blog-body); }
.post-body > * + * { margin-top: 1.5rem; }

.post-body h2, .post-body h3, .post-body h4 {
  color: var(--blog-ink);
  font-weight: 600;
  line-height: 1.35;
  scroll-margin-top: calc(var(--topbar-height) + 16px);
}

.post-body h2 { margin-top: 3rem; font-size: 1.75rem; }
.post-body h3 { margin-top: 2.5rem; font-size: 1.375rem; }
.post-body h4 { margin-top: 2rem; font-size: 1.125rem; }

.post-body a { color: var(--blog-ink); text-decoration: underline; text-underline-offset: 3px; }
.post-body a:hover { color: var(--blog-sub); }
.post-body strong { font-weight: 600; color: var(--blog-ink); }

.post-body ul, .post-body ol { padding-left: 1.5rem; }
.post-body ul { list-style: disc; }
.post-body ol { list-style: decimal; }
.post-body li + li, .post-body li > ul, .post-body li > ol { margin-top: 0.5rem; }

.post-body blockquote { border-left: 3px solid var(--blog-line); padding-left: 1.25rem; color: var(--blog-sub); }
.post-body hr { border: 0; border-top: 1px solid var(--blog-line); margin-block: 2.5rem; }

.post-body code { background: var(--blog-chip); border-radius: 3px; padding: 0.1em 0.35em; font-size: 0.9em; }
.post-body pre {
  background: var(--blog-ink);
  color: #f5f5f5;
  border-radius: 4px;
  padding: 1.25rem;
  overflow-x: auto;
  font-size: 15px;
  line-height: 1.7;
}
.post-body pre code { background: transparent; padding: 0; color: inherit; }
.post-body mark { background: #f3e79b; padding: 0.1em 0.15em; }
.post-body img { max-width: 100%; height: auto; border-radius: 4px; }

.post-body table { width: 100%; border-collapse: collapse; font-size: 15px; }
.post-body th, .post-body td { border-top: 1px solid var(--blog-line); border-bottom: 1px solid var(--blog-line); padding: 8px 12px; text-align: left; }
.post-body th { font-weight: 600; color: var(--blog-ink); }

/* 이어지는 글 */

.post-more { margin-top: 40px; padding-top: 40px; border-top: 1px solid var(--blog-line); }
.post-more h2 { font-size: 22px; font-weight: 600; letter-spacing: -0.03em; }
.post-more__list { margin-top: 20px; border-top: 1px solid var(--blog-line); border-bottom: 1px solid var(--blog-line); }

.post-more__item {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
  padding: 20px 0;
  border-bottom: 1px solid var(--blog-line);
}

.post-more__item:last-child { border-bottom: none; }
.post-more__item p { font-size: 12px; font-weight: 600; color: var(--blog-mute); }
.post-more__item h3 { margin-top: 8px; font-size: 15px; font-weight: 600; line-height: 1.5; }
.post-more__item:hover h3 { text-decoration: underline; text-underline-offset: 4px; }
.post-more__item svg { margin-top: 24px; flex: none; transition: transform 150ms; }
.post-more__item:hover svg { transform: translateX(4px); }

@media (min-width: 640px) {
  .blog-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (min-width: 768px) {
  .blog-wrap { padding: 40px 32px; }
  .blog-tabs, .blog-grid { padding-left: 32px; padding-right: 32px; }
  .blog-title { font-size: 36px; }
  .post-wrap { padding: 64px 32px; }
  .post-title { font-size: 44px; }
}

@media (min-width: 1024px) {
  .blog-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }

  .post-wrap.has-toc {
    display: grid;
    grid-template-columns: 220px minmax(0, 1fr);
    align-items: start;
    gap: 48px;
  }

  .post-toc {
    display: block;
    position: sticky;
    top: calc(var(--topbar-height) + 32px);
    max-height: calc(100vh - 6rem);
    overflow-y: auto;
  }
}

/* ---------- 좁은 화면 ---------- */

@media (max-width: 639px) {
  .blog-search input { font-size: 16px; }     /* 16px 보다 작으면 아이폰이 확대한다 */
  .blog-tab { min-height: 40px; padding: 8px 14px; font-size: 15px; }
  .blog-tab__count { font-size: 13px; }
  .blog-chip { padding: 5px 9px; font-size: 12.5px; }
  a.blog-chip { padding: 8px 10px; }
  .blog-card__read, .blog-card__date { font-size: 13px; }
  .blog-card__title { font-size: 17.5px; }
  .blog-card__summary { font-size: 15px; }

  .post-wrap { padding: 24px 16px 40px; }
  .post-back { min-height: 44px; font-size: 15px; }
  .post-copy { min-height: 40px; }
  .post-title { font-size: 28px; line-height: 1.3; word-break: keep-all; }
  .post-summary { margin-top: 16px; font-size: 16.5px; }
  .post-body { padding: 28px 0; font-size: 17px; line-height: 1.9; }
  .post-body h2 { margin-top: 2.4rem; font-size: 1.45rem; }
  .post-body h3 { margin-top: 2rem; font-size: 1.2rem; }
  .post-body p, .post-body li { word-break: keep-all; overflow-wrap: anywhere; }
  .post-body pre { font-size: 14px; overflow-x: auto; }

  /* 표: 낱말 중간에서 끊지 않고, 넘치면 표만 옆으로 민다 */
  .post-body table { display: block; width: auto; max-width: 100%; overflow-x: auto; -webkit-overflow-scrolling: touch; font-size: 14.5px; line-height: 1.6; }
  .post-body th, .post-body td { padding: 8px 10px; word-break: keep-all; vertical-align: top; }
  .post-body th { white-space: nowrap; }

  .post-more h2 { font-size: 20px; }
  .post-more__item p { font-size: 13px; }
  .post-more__item h3 { font-size: 16px; }
}