/* Blog-specific styles */

/* Layout */
.blog-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 48px;
}

.blog-content {
  max-width: 720px;
  margin: 0 auto;
}

/* Header */
.blog-header {
  padding: 40px 48px 0;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  max-width: 1400px;
  margin: 0 auto;
}

.blog-header__logo {
  font-size: 15px;
  font-family: 'DM Sans', sans-serif;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin: 0;
  color: var(--color-text);
}

.blog-header__tagline {
  font-size: 11px;
  font-family: 'DM Sans', sans-serif;
  font-weight: 400;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-top: 2px;
  display: block;
}

.blog-header__nav {
  display: flex;
  gap: 32px;
  font-family: 'DM Sans', sans-serif;
  font-size: 13px;
  font-weight: 500;
  color: var(--color-text-muted);
  letter-spacing: 0.02em;
}

.blog-header__nav a {
  color: var(--color-text-muted);
  text-decoration: none;
  transition: color 0.25s ease;
}

.blog-header__nav a:hover,
.blog-header__nav a.active {
  color: var(--color-text);
}

.blog-header__back {
  font-size: 13px;
  font-family: 'DM Sans', sans-serif;
  color: var(--color-text-muted);
  display: flex;
  align-items: center;
  gap: 6px;
  text-decoration: none;
  transition: color 0.25s ease;
}

.blog-header__back:hover {
  color: var(--color-text);
}

/* Hero section */
.blog-hero {
  padding: 100px 48px 80px;
  max-width: 1400px;
  margin: 0 auto;
}

.blog-hero__content {
  max-width: 780px;
}

.blog-hero__title {
  font-size: 52px;
  font-weight: 300;
  line-height: 1.15;
  margin: 0 0 28px;
  letter-spacing: -0.025em;
  color: var(--color-text-heading);
}

.blog-hero__title em {
  font-style: italic;
  font-weight: 400;
}

.blog-hero__title em.coral { color: var(--color-coral); }
.blog-hero__title em.teal { color: var(--color-teal); }
.blog-hero__title em.purple { color: var(--color-purple); }

.blog-hero__description {
  font-size: 17px;
  line-height: 1.7;
  color: var(--color-text-medium);
  max-width: 520px;
  font-weight: 300;
}

.blog-hero__description del {
  text-decoration: line-through;
  color: var(--color-text-dim);
  text-decoration-color: var(--color-coral);
}

.blog-hero__description em {
  font-style: italic;
  color: var(--color-coral);
}

/* Stats */
.blog-stats {
  display: flex;
  gap: 56px;
  margin-top: 56px;
  padding-top: 32px;
  border-top: 1px solid var(--color-border);
}

.blog-stat__value {
  font-size: 32px;
  font-family: 'JetBrains Mono', monospace;
  font-weight: 400;
  letter-spacing: -0.02em;
  color: var(--color-text);
}

.blog-stat__label {
  font-size: 12px;
  font-family: 'DM Sans', sans-serif;
  font-weight: 500;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-top: 4px;
}

/* Featured section */
.blog-featured {
  padding: 0 48px 80px;
  max-width: 1400px;
  margin: 0 auto;
}

.blog-featured__label {
  font-size: 11px;
  font-family: 'DM Sans', sans-serif;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-text-faint);
  margin-bottom: 24px;
}

.blog-featured__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

@media (max-width: 900px) {
  .blog-featured__grid {
    grid-template-columns: 1fr;
  }
}

/* Featured card */
.featured-card {
  background: var(--color-bg-elevated);
  border-radius: 12px;
  padding: 32px;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  border: 1px solid var(--color-border-light);
  transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  text-decoration: none;
  display: block;
}

.featured-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 60px rgba(0,0,0,0.4);
}

.featured-card__accent {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  border-radius: 12px 12px 0 0;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.featured-card:hover .featured-card__accent {
  opacity: 1;
}

.featured-card__glow {
  position: absolute;
  top: -40px;
  right: -40px;
  width: 120px;
  height: 120px;
  border-radius: 50%;
  opacity: 0;
  transition: opacity 0.4s ease;
}

.featured-card:hover .featured-card__glow {
  opacity: 1;
}

.featured-card__category {
  font-size: 11px;
  font-family: 'DM Sans', sans-serif;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.featured-card__icon {
  font-size: 14px;
}

.featured-card__title {
  font-size: 22px;
  font-weight: 400;
  line-height: 1.3;
  margin: 0 0 20px;
  letter-spacing: -0.01em;
  color: var(--color-text);
}

.featured-card__year {
  font-size: 13px;
  font-family: 'JetBrains Mono', monospace;
  color: var(--color-text-faint);
}

/* Category filter */
.blog-filters {
  padding: 0 48px;
  max-width: 1400px;
  margin: 0 auto;
}

.blog-filters__list {
  display: flex;
  gap: 10px;
  margin-bottom: 48px;
  flex-wrap: wrap;
  list-style: none;
  padding: 0;
}

.filter-btn {
  padding: 10px 20px;
  border-radius: 100px;
  border: 1.5px solid var(--color-border-dark);
  background: transparent;
  color: var(--color-text-soft);
  font-family: 'DM Sans', sans-serif;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.3s ease;
  letter-spacing: 0.01em;
  display: flex;
  align-items: center;
  gap: 6px;
  text-decoration: none;
}

.filter-btn:hover {
  border-color: var(--color-text-muted);
  color: var(--color-text-muted);
}

.filter-btn--active {
  border-color: var(--color-text);
  background: var(--color-text);
  color: var(--color-bg);
}

.filter-btn--active:hover {
  border-color: var(--color-text);
  color: var(--color-bg);
}

.filter-btn__icon {
  font-size: 12px;
}

/* Article list section */
.blog-articles {
  padding: 0 48px 120px;
  max-width: 1400px;
  margin: 0 auto;
}

.article-category {
  margin-bottom: 64px;
}

.article-category__header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 24px;
}

.article-category__icon {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
}

.article-category__name {
  font-size: 12px;
  font-family: 'DM Sans', sans-serif;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin: 0;
  color: var(--color-text-muted);
}

.article-category__count {
  font-size: 11px;
  font-family: 'JetBrains Mono', monospace;
  color: var(--color-text-subtle);
  margin-left: 4px;
}

.article-list {
  border-top: 1px solid var(--color-border);
  list-style: none;
  padding: 0;
  margin: 0;
}

/* Article list item */
.article-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 16px;
  border-bottom: 1px solid var(--color-border);
  cursor: pointer;
  transition: all 0.25s ease;
  margin: 0 -16px;
  border-radius: 0;
}

.article-item:hover {
  background: var(--color-bg-elevated);
  border-radius: 8px;
}

.article-item__link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  text-decoration: none;
}

.article-item__content {
  display: flex;
  align-items: center;
  gap: 20px;
}

.article-item__year {
  font-size: 13px;
  font-family: 'JetBrains Mono', monospace;
  color: var(--color-text-subtle);
  min-width: 44px;
}

.article-item__title {
  font-size: 17px;
  font-weight: 400;
  margin: 0;
  letter-spacing: -0.01em;
  color: var(--color-text-item);
  transition: color 0.25s ease;
}

.article-item:hover .article-item__title {
  color: var(--color-coral);
}

.article-item__arrow {
  opacity: 0;
  transform: translateX(-8px);
  transition: all 0.25s ease;
  flex-shrink: 0;
}

.article-item:hover .article-item__arrow {
  opacity: 1;
  transform: translateX(0);
}

/* Reading progress bar */
.reading-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 2px;
  background: var(--color-coral);
  z-index: 1000;
  transition: width 0.1s linear;
  width: 0;
}

/* Article page header */
.article-header {
  padding: 60px 48px 0;
  max-width: 1400px;
  margin: 0 auto;
}

.article-header__content {
  max-width: 720px;
  margin: 0 auto;
}

.article-header__meta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 28px;
}

.article-header__badge {
  font-size: 11px;
  font-family: 'DM Sans', sans-serif;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: 6px 14px;
  border-radius: 100px;
}

.article-header__year {
  font-size: 13px;
  font-family: 'JetBrains Mono', monospace;
  color: var(--color-text-subtle);
}

.article-header__title {
  font-size: 48px;
  font-weight: 400;
  line-height: 1.15;
  margin: 0 0 24px;
  letter-spacing: -0.025em;
  color: var(--color-text-heading);
}

.article-header__title em {
  font-style: italic;
  color: var(--color-coral);
}

.article-header__info {
  display: flex;
  align-items: center;
  gap: 16px;
  padding-bottom: 48px;
  border-bottom: 1px solid var(--color-border);
  font-size: 13px;
  font-family: 'DM Sans', sans-serif;
  color: var(--color-text-muted);
}

.article-header__dot {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--color-border-dark);
}

/* Article body */
.article-body {
  padding: 56px 48px 80px;
  max-width: 1400px;
  margin: 0 auto;
}

.article-body__content {
  max-width: 720px;
  margin: 0 auto;
}

/* Separator dots */
.article-separator {
  max-width: 720px;
  margin: 0 auto;
  padding: 0 48px;
}

.article-separator__inner {
  display: flex;
  justify-content: center;
  gap: 8px;
  padding: 48px 0;
  border-top: 1px solid var(--color-border);
}

.article-separator__dot {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--color-border-dark);
}

/* Related articles */
.related-articles {
  padding: 0 48px 120px;
  max-width: 1400px;
  margin: 0 auto;
}

.related-articles__content {
  max-width: 720px;
  margin: 0 auto;
}

.related-articles__title {
  font-size: 12px;
  font-family: 'DM Sans', sans-serif;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-text-faint);
  margin-bottom: 24px;
}

.related-articles__list {
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--color-border);
  list-style: none;
  padding: 0;
  margin: 0;
}

/* Footer */
.blog-footer {
  padding: 40px 48px;
  max-width: 1400px;
  margin: 0 auto;
  border-top: 1px solid var(--color-border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.blog-footer__copyright {
  font-size: 13px;
  font-family: 'DM Sans', sans-serif;
  color: var(--color-text-subtle);
}

.blog-footer__links {
  display: flex;
  gap: 24px;
  font-size: 13px;
  font-family: 'DM Sans', sans-serif;
  color: var(--color-text-subtle);
}

.blog-footer__links a {
  color: var(--color-text-subtle);
  text-decoration: none;
  transition: color 0.25s ease;
}

.blog-footer__links a:hover {
  color: var(--color-text);
}

/* About page */
.about-intro {
  padding: 100px 48px 0;
  max-width: 1400px;
  margin: 0 auto;
}

.about-intro__content {
  max-width: 640px;
}

.about-intro__name {
  font-size: 40px;
  font-weight: 300;
  line-height: 1.2;
  margin: 0 0 40px;
  letter-spacing: -0.02em;
  color: var(--color-text-heading);
}

.about-intro__bio {
  font-size: 18px;
  line-height: 1.8;
  color: var(--color-text-body);
  font-weight: 300;
  margin: 0;
}

.about-section {
  padding: 80px 48px 0;
  max-width: 1400px;
  margin: 0 auto;
}

.about-section__header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 28px;
}

.about-section__label {
  font-size: 11px;
  font-family: 'DM Sans', sans-serif;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-text-faint);
  margin-bottom: 28px;
}

.about-section__header .about-section__label {
  margin-bottom: 0;
}

.about-section__link {
  font-family: 'DM Sans', sans-serif;
  font-size: 13px;
  color: var(--color-text-muted);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: color 0.25s ease;
}

.about-section__link:hover {
  color: var(--color-text);
}

.about-section__content {
  border-top: 1px solid var(--color-border);
  padding-top: 28px;
}

.about-section__content--text {
  max-width: 640px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.about-section__content--text p {
  font-size: 17px;
  line-height: 1.75;
  color: var(--color-text-body);
  font-weight: 300;
  margin: 0;
}

/* Now section */
.about-now {
  border-top: 1px solid var(--color-border);
}

.about-now__item {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 24px;
  padding: 22px 0;
  border-bottom: 1px solid var(--color-border);
  align-items: baseline;
  text-decoration: none;
  transition: background 0.25s ease;
  margin: 0 -16px;
  padding-left: 16px;
  padding-right: 16px;
  border-radius: 0;
}

a.about-now__item:hover {
  background: var(--color-bg-elevated);
  border-radius: 8px;
}

.about-now__title {
  font-family: 'DM Sans', sans-serif;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text-item);
  display: flex;
  align-items: center;
  gap: 8px;
  transition: color 0.25s ease;
}

a.about-now__item:hover .about-now__title {
  color: var(--color-text);
}

.about-now__external {
  opacity: 0.4;
  transition: opacity 0.25s ease;
}

a.about-now__item:hover .about-now__external {
  opacity: 0.8;
}

.about-now__desc {
  font-size: 15px;
  color: var(--color-text-soft);
  font-weight: 300;
  line-height: 1.6;
}

/* Elsewhere links */
.about-links {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.about-links__btn {
  padding: 12px 24px;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border-light);
  border-radius: 8px;
  font-family: 'DM Sans', sans-serif;
  font-size: 13px;
  font-weight: 500;
  color: var(--color-text-soft);
  text-decoration: none;
  transition: all 0.25s ease;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
}

.about-links__btn:hover {
  background: var(--color-selected-dark);
  border-color: var(--color-border-dark);
  color: var(--color-text);
}

.about-links__external {
  opacity: 0;
  transition: opacity 0.25s ease;
}

.about-links__btn:hover .about-links__external {
  opacity: 0.6;
}

.about-section--last {
  padding-bottom: 120px;
}

/* Theme toggle button */
.theme-toggle {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 99;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: 1px solid var(--color-border);
  background: var(--color-bg-elevated);
  color: var(--color-text-muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.2s ease, box-shadow 0.2s ease, color 0.2s ease;
  box-shadow: 0 2px 8px rgba(0,0,0,0.15);
}

.theme-toggle:hover {
  transform: scale(1.1);
  box-shadow: 0 4px 16px rgba(0,0,0,0.2);
  color: var(--color-text);
}

.theme-toggle span {
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Responsive */
@media (max-width: 768px) {
  .blog-container,
  .blog-header,
  .blog-hero,
  .blog-featured,
  .blog-filters,
  .blog-articles,
  .article-header,
  .article-body,
  .article-separator,
  .related-articles,
  .blog-footer,
  .about-intro,
  .about-section {
    padding-left: 24px;
    padding-right: 24px;
  }

  .blog-hero__title {
    font-size: 36px;
  }

  .blog-stats {
    gap: 32px;
  }

  .article-header__title {
    font-size: 32px;
  }

  .about-intro__name {
    font-size: 32px;
  }

  .about-now__item {
    grid-template-columns: 1fr;
    gap: 8px;
    margin: 0 -12px;
    padding-left: 12px;
    padding-right: 12px;
  }
}