/* ============================================================
   BLOG.CSS — joveljose.com/blog
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Lora:ital,wght@0,400;0,600;0,700;1,400&family=IBM+Plex+Sans:wght@300;400;500;600&display=swap');

:root {
  --blog-bg:         #fafaf7;
  --blog-bg-card:    #ffffff;
  --blog-text:       #2d2d2d;
  --blog-text-muted: #7a7169;
  --blog-accent:     #c17f3e;
  --blog-accent-dim: rgba(193, 127, 62, 0.12);
  --blog-border:     #e8e0d5;
  --blog-border-card:#ede6dc;
  --font-serif: 'Lora', Georgia, serif;
  --font-body:  'IBM Plex Sans', sans-serif;
  --max-blog:   1040px;
  --radius:     10px;
  --transition: 0.25s ease;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  background: var(--blog-bg);
  color: var(--blog-text);
  font-family: var(--font-body);
  line-height: 1.7;
  min-height: 100vh;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

.container {
  max-width: var(--max-blog);
  margin: 0 auto;
  padding: 0 24px;
}

/* --- Blog Nav --- */
.blog-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 0;
  border-bottom: 1px solid var(--blog-border);
  flex-wrap: wrap;
  gap: 12px;
}

.blog-nav-back {
  font-family: var(--font-body);
  font-size: 0.88rem;
  color: var(--blog-text-muted);
  transition: color var(--transition);
  display: flex;
  align-items: center;
  gap: 6px;
}

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

.blog-nav-right {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.filter-btn {
  padding: 6px 16px;
  border-radius: 20px;
  border: 1px solid var(--blog-border);
  background: transparent;
  font-family: var(--font-body);
  font-size: 0.82rem;
  color: var(--blog-text-muted);
  cursor: pointer;
  transition: all var(--transition);
}

.filter-btn:hover,
.filter-btn.active {
  background: var(--blog-accent);
  color: #fff;
  border-color: var(--blog-accent);
}

/* --- Blog Header --- */
.blog-header {
  padding: 56px 0 40px;
}

.blog-heading {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 700;
  color: var(--blog-text);
  margin-bottom: 10px;
}

.blog-subheading {
  font-size: 1rem;
  color: var(--blog-text-muted);
  max-width: 580px;
  line-height: 1.65;
}

/* --- Post Grid --- */
.post-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
  padding: 0 0 72px;
}

/* --- Post Card --- */
.post-card {
  background: var(--blog-bg-card);
  border: 1px solid var(--blog-border-card);
  border-radius: var(--radius);
  padding: 28px;
  transition: box-shadow var(--transition), transform var(--transition);
  display: flex;
  flex-direction: column;
  gap: 12px;
  text-decoration: none;
  color: inherit;
}

.post-card:hover {
  box-shadow: 0 6px 24px rgba(0,0,0,0.09);
  transform: translateY(-3px);
}

.post-card[data-hidden="true"] { display: none; }

.post-category {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 3px 10px;
  border-radius: 4px;
  background: var(--blog-accent-dim);
  color: var(--blog-accent);
  width: fit-content;
}

.post-title {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--blog-text);
  line-height: 1.4;
}

.post-meta {
  font-size: 0.8rem;
  color: var(--blog-text-muted);
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.post-excerpt {
  font-size: 0.9rem;
  color: var(--blog-text-muted);
  line-height: 1.7;
  /* two-line clamp */
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.post-read-more {
  font-size: 0.83rem;
  color: var(--blog-accent);
  font-weight: 500;
  margin-top: auto;
  display: flex;
  align-items: center;
  gap: 4px;
  transition: gap var(--transition);
}

.post-card:hover .post-read-more { gap: 8px; }

/* --- Lang Toggle (blog nav) --- */
.lang-toggle {
  display: flex;
  align-items: center;
  gap: 2px;
}

.lang-btn {
  background: none;
  border: none;
  cursor: pointer;
  font-family: var(--font-body);
  font-size: 0.78rem;
  color: var(--blog-text-muted);
  padding: 3px 7px;
  border-radius: 4px;
  transition: color var(--transition);
  letter-spacing: 0.04em;
}

.lang-btn:hover { color: var(--blog-text); }
.lang-btn.active { color: var(--blog-accent); font-weight: 600; }

.lang-sep {
  color: var(--blog-text-muted);
  font-size: 0.7rem;
  opacity: 0.4;
  pointer-events: none;
}

/* --- Article disclaimer --- */
.article-disclaimer {
  font-size: 0.85rem;
  color: var(--blog-text-muted);
  font-style: italic;
  padding: 10px 16px;
  border-left: 3px solid var(--blog-border);
  background: #f2ede6;
  border-radius: 0 6px 6px 0;
  margin-bottom: 28px;
  line-height: 1.6;
}

/* --- Blog Footer --- */
.blog-footer {
  padding: 24px;
  text-align: center;
  font-size: 0.8rem;
  color: var(--blog-text-muted);
  border-top: 1px solid var(--blog-border);
}

/* ============================================================
   BLOG POST ARTICLE PAGE
   ============================================================ */
.article-nav {
  padding: 18px 0;
  border-bottom: 1px solid var(--blog-border);
}

.article-container {
  max-width: 720px;
  margin: 0 auto;
  padding: 0 24px;
}

.article-header {
  padding: 52px 0 36px;
  border-bottom: 1px solid var(--blog-border);
  margin-bottom: 44px;
}

.article-category {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 3px 10px;
  border-radius: 4px;
  background: var(--blog-accent-dim);
  color: var(--blog-accent);
  margin-bottom: 18px;
}

.article-title {
  font-family: var(--font-serif);
  font-size: clamp(1.7rem, 4vw, 2.4rem);
  font-weight: 700;
  color: var(--blog-text);
  line-height: 1.3;
  margin-bottom: 18px;
}

.article-meta {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
  font-size: 0.85rem;
  color: var(--blog-text-muted);
}

.article-author { font-weight: 500; color: var(--blog-text); }

/* --- Article Body --- */
.article-body {
  padding-bottom: 72px;
}

.article-body p {
  font-size: 1.02rem;
  line-height: 1.82;
  color: var(--blog-text);
  margin-bottom: 1.5em;
}

.article-body h2 {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--blog-text);
  margin: 2.4em 0 0.8em;
  line-height: 1.3;
}

.article-body ul {
  margin: 0 0 1.4em 1.4em;
}

.article-body li {
  font-size: 1rem;
  line-height: 1.75;
  color: var(--blog-text);
  margin-bottom: 0.4em;
}

.article-body li::marker { color: var(--blog-accent); }

.article-body strong { font-weight: 600; }

/* Arch diagram block */
.arch-diagram {
  background: #f2ede6;
  border: 1px solid var(--blog-border);
  border-left: 3px solid var(--blog-accent);
  border-radius: 8px;
  padding: 24px 28px;
  margin: 2em 0;
  font-family: 'Courier New', monospace;
  font-size: 0.82rem;
  line-height: 1.8;
  color: #4a3f33;
  overflow-x: auto;
  white-space: pre;
}

/* Article footer */
.article-footer-note {
  margin-top: 52px;
  padding-top: 28px;
  border-top: 1px solid var(--blog-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: gap;
  gap: 16px;
}

.back-link {
  font-size: 0.85rem;
  color: var(--blog-text-muted);
  transition: color var(--transition);
  display: flex;
  align-items: center;
  gap: 6px;
}

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

/* --- Responsive --- */
@media (max-width: 768px) {
  .post-grid { grid-template-columns: 1fr; }
  .blog-header { padding: 36px 0 28px; }
  .article-header { padding: 36px 0 28px; }
}