/* ===========================================
   FASTWEB — Blog Archive & Single Post Styles
   다크 테마 기반 블로그 레이아웃
   =========================================== */

/* =====================
   1. Blog Hero (아카이브 상단)
   ===================== */
.blog-hero {
  padding-top: calc(var(--space-24) + 64px);
  padding-bottom: var(--space-16);
  background-color: var(--color-dark-900);
  background-image:
    radial-gradient(ellipse at 50% 100%,
      rgba(6, 182, 212, 0.08) 0%,
      transparent 60%);
  position: relative;
  text-align: center;
}

.blog-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.015) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.015) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
}

.blog-hero__inner {
  position: relative;
  z-index: 1;
}

.blog-hero__label {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-accent);
  font-size: var(--text-body-xs);
  font-weight: 600;
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  color: var(--color-accent-400);
  margin-bottom: var(--space-6);
  padding: 5px 12px;
  border: 1px solid rgba(6, 182, 212, 0.25);
  border-radius: var(--radius-full);
  background: rgba(6, 182, 212, 0.08);
}

.blog-hero__title {
  font-size: var(--text-heading-xl);
  font-weight: 700;
  color: var(--text-heading);
  margin-bottom: var(--space-4);
  letter-spacing: var(--tracking-tight);
}

.blog-hero__desc {
  font-size: var(--text-body-lg);
  color: var(--text-muted);
  max-width: 520px;
  margin-inline: auto;
  margin-bottom: var(--space-10);
}

/* 검색바 */
.blog-search {
  max-width: 480px;
  margin-inline: auto;
  position: relative;
}

.blog-search__input {
  width: 100%;
  padding: 14px 48px 14px 20px;
  background: var(--bg-input);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-full);
  color: var(--text-heading);
  font-family: var(--font-primary);
  font-size: var(--text-body-lg);
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
}

.blog-search__input::placeholder {
  color: var(--text-placeholder);
}

.blog-search__input:focus {
  outline: none;
  border-color: var(--color-accent-400);
  box-shadow: 0 0 0 3px rgba(6, 182, 212, 0.15);
}

.blog-search__btn {
  position: absolute;
  right: 6px;
  top: 50%;
  transform: translateY(-50%);
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  transition: color var(--transition-base);
}

.blog-search__btn:hover {
  color: var(--color-accent-400);
}

/* =====================
   2. Category Filter Bar
   ===================== */
.blog-filter {
  background-color: rgba(17, 17, 17, 0.95);
  border-top: 1px solid var(--border-default);
  border-bottom: 1px solid var(--border-default);
  position: sticky;
  top: 64px;
  z-index: 50;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.blog-filter__inner {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding-block: var(--space-4);
  overflow-x: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.blog-filter__inner::-webkit-scrollbar {
  display: none;
}

.blog-filter__btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 8px 18px;
  background: transparent;
  color: var(--text-muted);
  border: 1px solid transparent;
  border-radius: var(--radius-full);
  font-family: var(--font-primary);
  font-size: var(--text-body-sm);
  font-weight: 500;
  white-space: nowrap;
  cursor: pointer;
  transition:
    color var(--transition-base),
    background var(--transition-base),
    border-color var(--transition-base);
  min-height: 44px;
  text-decoration: none;
}

.blog-filter__btn:hover {
  color: var(--text-heading);
  background: rgba(255, 255, 255, 0.06);
}

.blog-filter__btn.is-active {
  color: var(--color-accent-400);
  background: rgba(6, 182, 212, 0.1);
  border-color: rgba(6, 182, 212, 0.3);
  font-weight: 600;
}

.blog-filter__count {
  font-family: var(--font-accent);
  font-size: var(--text-body-xs);
  color: var(--text-placeholder);
  font-weight: 400;
}

.blog-filter__btn.is-active .blog-filter__count {
  color: var(--color-accent-400);
  opacity: 0.7;
}

/* =====================
   3. Post Grid (Archive)
   ===================== */
.blog-archive {
  background-color: var(--color-dark-900);
  padding-block: var(--space-16);
  min-height: 50vh;
}

.blog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--card-gap);
}

/* =====================
   4. Post Card
   ===================== */
.post-card {
  background: var(--bg-card);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition:
    border-color var(--transition-slow),
    box-shadow var(--transition-slow),
    transform var(--transition-slow);
}

.post-card:hover {
  border-color: var(--border-strong);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.5);
  transform: translateY(-4px);
}

.post-card__thumb {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--color-dark-800);
}

.post-card__thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.post-card:hover .post-card__thumb img {
  transform: scale(1.05);
}

.post-card__thumb--empty {
  display: flex;
  align-items: center;
  justify-content: center;
  background:
    linear-gradient(135deg, var(--color-dark-800) 0%, var(--color-dark-700) 100%);
}

.post-card__thumb--empty svg {
  width: 48px;
  height: 48px;
  color: var(--text-placeholder);
  opacity: 0.4;
}

.post-card__category {
  position: absolute;
  top: var(--space-3);
  right: var(--space-3);
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  background: rgba(10, 10, 10, 35%);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  color: var(--color-accent-400);
  border-radius: var(--radius-full);
  font-size: var(--text-body-xs);
  font-weight: 600;
  letter-spacing: 0.03em;
  text-decoration: none;
  transition: background var(--transition-base);
}

.post-card__category:hover {
  background: rgba(6, 182, 212, 0.2);
  color: var(--color-accent-400);
}

.post-card__body {
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  flex: 1;
}

.post-card__title {
  font-size: var(--text-body-xl);
  font-weight: 700;
  color: var(--text-heading);
  line-height: var(--leading-snug);
  margin-bottom: var(--space-3);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.post-card__title a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-base);
}

.post-card__title a:hover {
  color: var(--color-accent-400);
}

.post-card__excerpt {
  font-size: var(--text-body-md);
  color: var(--text-muted);
  line-height: var(--leading-normal);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: var(--space-5);
  flex: 1;
}

.post-card__meta {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding-top: var(--space-4);
  border-top: 1px solid var(--border-default);
  margin-top: auto;
}

.post-card__date {
  font-family: var(--font-accent);
  font-size: var(--text-body-xs);
  color: var(--text-placeholder);
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.post-card__read-time {
  font-size: var(--text-body-xs);
  color: var(--text-placeholder);
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.post-card__meta-dot {
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: var(--text-placeholder);
  opacity: 0.5;
}

/* =====================
   5. Pagination
   ===================== */
.blog-pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  margin-top: var(--space-16);
}

.blog-pagination a,
.blog-pagination span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 44px;
  min-height: 44px;
  padding: 8px 14px;
  border-radius: var(--radius-md);
  font-family: var(--font-accent);
  font-size: var(--text-body-sm);
  font-weight: 500;
  text-decoration: none;
  transition: all var(--transition-base);
}

.blog-pagination a {
  color: var(--text-muted);
  border: 1px solid var(--border-default);
  background: transparent;
}

.blog-pagination a:hover {
  color: var(--text-heading);
  border-color: var(--border-strong);
  background: rgba(255, 255, 255, 0.06);
}

.blog-pagination .current {
  color: var(--color-accent-400);
  border: 1px solid rgba(6, 182, 212, 0.3);
  background: rgba(6, 182, 212, 0.1);
  font-weight: 700;
}

.blog-pagination .dots {
  color: var(--text-placeholder);
  border: none;
  min-width: auto;
  padding: 8px 4px;
}

/* 포스트 없을 때 */
.blog-empty {
  text-align: center;
  padding: var(--space-20) var(--space-6);
}

.blog-empty__icon {
  width: 64px;
  height: 64px;
  margin: 0 auto var(--space-6);
  color: var(--text-placeholder);
  opacity: 0.4;
}

.blog-empty__title {
  font-size: var(--text-heading-md);
  font-weight: 600;
  color: var(--text-heading);
  margin-bottom: var(--space-3);
}

.blog-empty__desc {
  font-size: var(--text-body-lg);
  color: var(--text-muted);
}

/* =====================
   6. Single Post
   ===================== */
.single-hero {
  padding-top: calc(var(--space-24) + 64px);
  padding-bottom: var(--space-12);
  background-color: var(--color-dark-900);
  background-image:
    radial-gradient(ellipse at 50% 100%,
      rgba(6, 182, 212, 0.06) 0%,
      transparent 60%);
}

.single-hero__inner {
  max-width: 980px;
  margin-inline: auto;
}

.single-hero__category {
  display: inline-flex;
  align-items: center;
  padding: 4px 12px;
  background: rgba(6, 182, 212, 0.12);
  color: var(--color-accent-400);
  border-radius: var(--radius-full);
  font-size: var(--text-body-xs);
  font-weight: 600;
  letter-spacing: 0.03em;
  margin-bottom: var(--space-5);
  text-decoration: none;
  transition: background var(--transition-base);
}

.single-hero__category:hover {
  background: rgba(6, 182, 212, 0.2);
  color: var(--color-accent-400);
}

.single-hero__title {
  font-size: var(--text-display-lg);
  font-weight: 700;
  color: var(--text-heading);
  line-height: var(--leading-tight);
  letter-spacing: -0.03em;
  margin-bottom: var(--space-6);
}

.single-hero__meta {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  flex-wrap: wrap;
}

.single-hero__meta-item {
  font-size: var(--text-body-sm);
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.single-hero__meta-item svg {
  width: 16px;
  height: 16px;
  color: var(--text-placeholder);
}

/* 본문 컨테이너 */
.single-content {
  background-color: var(--color-dark-900);
  padding-top: var(--space-24);
  padding-bottom: var(--space-24);
}

.single-content__inner {
  max-width: 980px;
  margin-inline: auto;
}

/* 본문 타이포그래피 */
.single-content__body {
  font-size: var(--text-body-lg);
  color: var(--text-body);
  line-height: 1.85;
  word-break: keep-all;
}

.single-content__body h2 {
  font-size: var(--text-heading-lg);
  margin-top: var(--space-12);
  margin-bottom: var(--space-5);
  padding-top: var(--space-6);
  border-top: 1px solid var(--border-default);
}

.single-content__body h3 {
  font-size: var(--text-heading-md);
  margin-top: var(--space-10);
  margin-bottom: var(--space-4);
}

.single-content__body h4 {
  font-size: var(--text-body-xl);
  margin-top: var(--space-8);
  margin-bottom: var(--space-3);
}

.single-content__body p {
  margin-bottom: var(--space-6);
  color: var(--text-body);
}

.single-content__body a.wp-block-button__link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 12px 28px;
  background: rgba(6, 182, 212, 0.08);
  color: var(--color-accent-400);
  border: 1.5px solid var(--color-accent-400);
  border-radius: var(--radius-full);
  font-family: var(--font-primary);
  font-size: var(--text-body-lg);
  font-weight: 600;
  letter-spacing: var(--tracking-wide);
  text-decoration: none;
  transition:
    background var(--transition-base),
    transform var(--transition-base),
    box-shadow var(--transition-base),
    border-color var(--transition-base),
    color var(--transition-base);
  min-height: 44px;
  white-space: nowrap;
}

.single-content__body a {
  color: var(--color-accent-400);
  text-decoration: underline;
}

.single-content__body a:hover {
  background: rgba(6, 182, 212, 0.18);
  color: var(--color-white);
  border-color: var(--color-accent-500);
  transform: translateY(-1px);
  box-shadow: 0 8px 20px rgba(6, 182, 212, 0.25);
}

.single-content__body img {
  border-radius: var(--radius-md);
  margin-block: var(--space-6);
}

.single-content__body ul,
.single-content__body ol {
  padding-left: var(--space-6);
  margin-bottom: var(--space-6);
}

.single-content__body li {
  margin-bottom: var(--space-2);
  color: var(--text-body);
}

.single-content__body ul li {
  list-style: disc;
}

.single-content__body ol li {
  list-style: decimal;
}

.single-content__body blockquote {
  margin: var(--space-8) 0;
  padding: var(--space-6) var(--space-8);
  background: rgba(6, 182, 212, 0.06);
  border-left: 3px solid var(--color-accent-400);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  font-size: var(--text-body-lg);
  color: var(--text-body);
  font-style: italic;
}

.single-content__body blockquote p {
  margin-bottom: 0;
  color: var(--text-body);
}

.single-content__body pre {
  margin: var(--space-6) 0;
  padding: var(--space-6);
  background: var(--color-dark-800);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  overflow-x: auto;
  font-size: var(--text-body-sm);
  line-height: 1.7;
}

.single-content__body code {
  font-family: 'JetBrains Mono', 'Fira Code', monospace;
  font-size: 0.9em;
  background: rgba(255, 255, 255, 0.06);
  padding: 2px 6px;
  border-radius: 4px;
  color: var(--color-accent-400);
}

.single-content__body pre code {
  background: none;
  padding: 0;
  border-radius: 0;
  color: var(--text-body);
}

.single-content__body table {
  width: 100%;
  border-collapse: collapse;
  margin: var(--space-6) 0;
}

.single-content__body th,
.single-content__body td {
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--border-default);
  text-align: left;
}

.single-content__body th {
  background: var(--color-dark-800);
  font-weight: 600;
  color: var(--text-heading);
}

.single-content__body td {
  color: var(--text-body);
}

/* Featured Image (Single) */
.single-featured {
  display: none;
  max-width: 760px;
  margin: 0 auto var(--space-10);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-default);
}

.single-featured img {
  width: 100%;
  height: auto;
  display: block;
}

/* Tags */
.single-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-12);
  padding-top: var(--space-8);
  border-top: 1px solid var(--border-default);
}

.single-tags__item {
  display: inline-flex;
  align-items: center;
  padding: 5px 12px;
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-muted);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-full);
  font-size: var(--text-body-xs);
  font-weight: 500;
  text-decoration: none;
  transition: all var(--transition-base);
}

.single-tags__item:hover {
  color: var(--color-accent-400);
  border-color: rgba(6, 182, 212, 0.3);
  background: rgba(6, 182, 212, 0.1);
}

/* Post Navigation */
.post-nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-6);
  margin-top: var(--space-12);
  padding-top: var(--space-8);
  border-top: 1px solid var(--border-default);
}

.post-nav__item {
  padding: var(--space-6);
  background: var(--bg-card);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-lg);
  text-decoration: none;
  transition: all var(--transition-base);
}

.post-nav__item:hover {
  border-color: var(--border-strong);
  background: var(--bg-card-hover);
}

.post-nav__item--next {
  text-align: right;
}

.post-nav__label {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  font-size: var(--text-body-xs);
  color: var(--color-accent-400);
  font-weight: 600;
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  font-family: var(--font-accent);
  margin-bottom: var(--space-2);
}

.post-nav__item--next .post-nav__label {
  justify-content: flex-end;
}

.post-nav__title {
  font-size: var(--text-body-lg);
  font-weight: 600;
  color: var(--text-heading);
  line-height: var(--leading-snug);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* =====================
   7. Responsive
   ===================== */
@media (max-width: 1024px) {
  .blog-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .blog-hero {
    padding-top: calc(var(--space-16) + 64px);
    padding-bottom: var(--space-10);
  }

  .blog-hero__title {
    font-size: var(--text-heading-lg);
  }

  .blog-grid {
    grid-template-columns: 1fr;
    max-width: 520px;
    margin-inline: auto;
  }

  .blog-filter__inner {
    padding-inline: var(--space-2);
  }

  .single-hero__title {
    font-size: var(--text-heading-xl);
  }

  .post-nav {
    grid-template-columns: 1fr;
  }

  .single-content__body blockquote {
    padding: var(--space-4) var(--space-5);
  }
}

@media (max-width: 480px) {
  .blog-hero__desc {
    font-size: var(--text-body-md);
  }

  .post-card__body {
    padding: var(--space-5);
  }

  .post-card__title {
    font-size: var(--text-body-xl);
  }

  .single-hero__meta {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-2);
  }
}