/* ===== Blog Section on Homepage ===== */

/* --- Blog Grid --- */
.blog-grid {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.blog-card {
  display: flex;
  align-items: baseline;
  gap: 1.25rem;
  padding: 1.15rem 0;
  border-bottom: 1px solid var(--border);
  text-decoration: none;
  color: inherit;
  transition: var(--transition);
  position: relative;
}

.blog-card:first-child {
  padding-top: 0;
}

.blog-card:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.blog-card:hover .blog-card-title {
  color: var(--fg);
}

.blog-card:hover .blog-card-arrow {
  opacity: 1;
  transform: translateX(2px);
}

.blog-card-date {
  flex-shrink: 0;
  font-size: var(--text-sm);
  color: var(--fg-3);
  font-variant-numeric: tabular-nums;
  min-width: 90px;
}

.blog-card-content {
  flex: 1;
  min-width: 0;
}

.blog-card-title {
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--fg);
  letter-spacing: -0.2px;
  transition: var(--transition);
  margin-bottom: 0.2rem;
}

.blog-card-subtitle {
  font-size: var(--text-sm);
  color: var(--fg-3);
  line-height: 1.5;
}

.blog-card-arrow {
  flex-shrink: 0;
  font-size: var(--text-sm);
  color: var(--fg-3);
  opacity: 0;
  transition: var(--transition);
}

/* --- "View All" link --- */
.blog-view-all {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  margin-top: 1.5rem;
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--fg-2);
  transition: var(--transition);
}

.blog-view-all:hover {
  color: var(--fg);
}

/* ===== Blog List Page ===== */

.blog-list-page {
  max-width: var(--container);
  margin: 0 auto;
  padding: 8rem 1.5rem 4rem;
}

.blog-list-header {
  margin-bottom: 2.5rem;
}

.blog-list-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 700;
  letter-spacing: -1.5px;
  line-height: 1.1;
  color: var(--fg);
  margin-bottom: 0.75rem;
}

.blog-list-desc {
  font-size: var(--text-base);
  color: var(--fg-2);
  line-height: 1.7;
}

.blog-empty {
  color: var(--fg-3);
  font-size: var(--text-sm);
  padding: 1rem 0;
}

/* Nav active state */
.nav-active {
  color: var(--fg) !important;
  font-weight: 500;
}

/* ===== Blog Reader Page ===== */

.blog-article {
  max-width: 720px;
  margin: 0 auto;
  padding: 8rem 1.5rem 4rem;
}

/* --- Header --- */
.blog-header {
  margin-bottom: 3rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--border);
}

.blog-back {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--fg-3);
  margin-bottom: 2rem;
  transition: var(--transition);
}

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

.blog-title {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 5vw, 2.5rem);
  font-weight: 700;
  letter-spacing: -1px;
  line-height: 1.2;
  color: var(--fg);
  margin-bottom: 1rem;
}

.blog-meta {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.blog-meta-date {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: var(--text-sm);
  color: var(--fg-3);
}

.blog-meta-subtitle {
  font-size: var(--text-sm);
  color: var(--fg-2);
  font-style: italic;
}

/* --- Body (rendered markdown) --- */
.blog-body {
  font-size: var(--text-base);
  color: var(--fg);
  line-height: 1.75;
}

.blog-body h1 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.5px;
  margin: 2.5rem 0 1rem;
  color: var(--fg);
}

.blog-body h2 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.3px;
  margin: 2.25rem 0 0.75rem;
  color: var(--fg);
}

.blog-body h3 {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 600;
  margin: 2rem 0 0.6rem;
  color: var(--fg);
}

.blog-body p {
  margin-bottom: 1.25rem;
}

.blog-body a {
  color: var(--fg);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-color: var(--fg-3);
  transition: var(--transition);
}

.blog-body a:hover {
  text-decoration-color: var(--fg);
}

.blog-body blockquote {
  border-left: 3px solid var(--border);
  margin: 1.5rem 0;
  padding: 0.75rem 1.25rem;
  color: var(--fg-2);
  background: var(--bg-2);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-style: italic;
}

.blog-body blockquote p:last-child {
  margin-bottom: 0;
}

.blog-body pre {
  background: var(--code-bg);
  color: var(--code-fg);
  border-radius: var(--radius);
  padding: 1.25rem 1.5rem;
  margin: 1.5rem 0;
  overflow-x: auto;
  font-size: var(--text-sm);
  line-height: 1.6;
  border: 1px solid var(--code-border);
}

.blog-body code {
  font-family: "SF Mono", "Fira Code", "JetBrains Mono", Menlo, monospace;
  font-size: 0.875em;
}

.blog-body :not(pre) > code {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 0.15rem 0.4rem;
  font-size: 0.85em;
  color: var(--fg);
}

.blog-body ul,
.blog-body ol {
  margin: 1rem 0 1.25rem;
  padding-left: 1.5rem;
}

.blog-body li {
  margin-bottom: 0.4rem;
}

.blog-body img {
  border-radius: var(--radius);
  margin: 1.5rem 0;
  box-shadow: var(--shadow);
}

.blog-body hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 2.5rem 0;
}

.blog-body strong {
  font-weight: 600;
  color: var(--fg);
}

/* --- Loading state --- */
.blog-loading {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--fg-3);
  font-size: var(--text-sm);
  padding: 2rem 0;
}

.blog-loading-spinner {
  width: 18px;
  height: 18px;
  border: 2px solid var(--border);
  border-top-color: var(--fg-3);
  border-radius: 50%;
  animation: blog-spin 0.6s linear infinite;
}

@keyframes blog-spin {
  to { transform: rotate(360deg); }
}

/* ===== Responsive ===== */
@media (max-width: 640px) {
  .blog-list-page {
    padding: 6.5rem 1.25rem 3rem;
  }

  .blog-article {
    padding: 6.5rem 1.25rem 3rem;
  }

  .blog-card {
    flex-direction: column;
    gap: 0.25rem;
  }

  .blog-card-date {
    min-width: unset;
  }

  .blog-card-arrow {
    display: none;
  }
}