/* ============================================================
   Blog styles — matching ImageConvert landing page aesthetic
   ============================================================ */

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

:root {
  --bg: #FAFAF8;
  --bg-alt: #F2F1EE;
  --fg: #1A1A1A;
  --fg-muted: #777;
  --accent: #1A1A1A;
  --border: #E2E0DA;
  --radius: 10px;
  --radius-sm: 6px;
}

html { scroll-behavior: smooth; font-size: 16px; }

body {
  background: var(--bg);
  color: var(--fg);
  font-family: 'Inter Tight', system-ui, -apple-system, sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a { color: inherit; text-decoration: none; }


/* ============================================================
   NAV
   ============================================================ */
.blog-nav {
  border-bottom: 1px solid var(--border);
  background: var(--bg);
  padding: 0 40px;
}

.blog-nav-inner {
  max-width: 900px;
  margin: 0 auto;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.blog-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  font-size: 15px;
  color: var(--fg);
}

.blog-nav-links { display: flex; gap: 4px; }

.blog-nav-link {
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 500;
  color: var(--fg-muted);
  transition: color 0.15s, background 0.15s;
}

.blog-nav-link:hover { color: var(--fg); background: var(--bg-alt); }
.blog-nav-link.active { color: var(--fg); font-weight: 600; }


/* ============================================================
   BLOG INDEX
   ============================================================ */
.blog-container {
  max-width: 900px;
  margin: 0 auto;
  padding: 64px 40px 80px;
}

.blog-header {
  margin-bottom: 48px;
  padding-bottom: 40px;
  border-bottom: 1px solid var(--border);
}

.blog-label {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--fg-muted);
  margin-bottom: 12px;
}

.blog-header h1 {
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: 10px;
}

.blog-sub {
  font-size: 17px;
  color: var(--fg-muted);
}

.article-grid {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.article-card {
  padding: 32px 0;
  border-bottom: 1px solid var(--border);
  transition: background 0.15s;
}

.article-card:first-child { border-top: 1px solid var(--border); }

.article-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--fg-muted);
  margin-bottom: 10px;
  font-weight: 500;
}

.article-title {
  font-size: clamp(20px, 2.5vw, 26px);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.2;
  margin-bottom: 10px;
}

.article-title a {
  color: var(--fg);
  transition: color 0.15s;
}

.article-title a:hover { color: var(--fg-muted); }

.article-desc {
  font-size: 15px;
  color: var(--fg-muted);
  line-height: 1.6;
  margin-bottom: 16px;
  max-width: 680px;
}

.article-tags { display: flex; gap: 8px; flex-wrap: wrap; }

.tag {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 100px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.03em;
}

.tag-input {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  color: var(--fg-muted);
}


/* ============================================================
   INDIVIDUAL ARTICLE
   ============================================================ */
.article-container {
  max-width: 740px;
  margin: 0 auto;
  padding: 48px 40px 80px;
}

.article-layout { }

.article-breadcrumb {
  font-size: 14px;
  margin-bottom: 28px;
}

.article-breadcrumb a {
  color: var(--fg-muted);
  transition: color 0.15s;
}

.article-breadcrumb a:hover { color: var(--fg); }

.article-header {
  margin-bottom: 48px;
  padding-bottom: 40px;
  border-bottom: 1px solid var(--border);
}

.article-header .article-tags { margin-bottom: 16px; }

.article-header .article-title {
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: 16px;
}

.article-header .article-meta {
  font-size: 14px;
  color: var(--fg-muted);
}

.article-sep { color: var(--border); }

/* Article prose */
.article-body {
  font-size: 17px;
  line-height: 1.75;
  color: var(--fg);
}

.article-body h2 {
  font-size: clamp(22px, 2.5vw, 28px);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: 2.2em 0 0.7em;
}

.article-body h3 {
  font-size: 20px;
  font-weight: 700;
  margin: 1.8em 0 0.6em;
}

.article-body p {
  margin-bottom: 1.4em;
}

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

.article-body li { margin-bottom: 0.4em; }

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

.article-body a:hover { color: var(--fg-muted); }

.article-body code {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 2px 6px;
  font-size: 0.88em;
  font-family: 'SF Mono', 'Fira Code', monospace;
}

.article-body pre {
  background: var(--fg);
  color: #f0f0f0;
  border-radius: var(--radius);
  padding: 20px 24px;
  overflow-x: auto;
  margin-bottom: 1.4em;
}

.article-body pre code {
  background: none;
  border: none;
  padding: 0;
  font-size: 14px;
}

.article-body blockquote {
  border-left: 3px solid var(--border);
  padding-left: 20px;
  margin: 1.4em 0;
  color: var(--fg-muted);
}

.article-body strong { font-weight: 700; }

.article-body img {
  max-width: 100%;
  border-radius: var(--radius);
  margin: 1.4em 0;
}

.article-body hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 2em 0;
}

/* CTA at bottom */
.article-cta {
  margin-top: 64px;
  padding-top: 40px;
  border-top: 1px solid var(--border);
  text-align: center;
}

.article-cta p {
  font-size: 16px;
  color: var(--fg-muted);
}

.article-cta a {
  color: var(--fg);
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.article-cta a:hover { color: var(--fg-muted); }


/* ============================================================
   404
   ============================================================ */
.not-found {
  text-align: center;
  padding: 80px 0;
}

.not-found-code {
  font-size: 80px;
  font-weight: 800;
  color: var(--border);
  line-height: 1;
  margin-bottom: 16px;
}

.not-found h1 {
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 12px;
}

.not-found p {
  color: var(--fg-muted);
  margin-bottom: 24px;
}

.not-found a {
  color: var(--fg);
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 3px;
}


/* ============================================================
   BLOG FOOTER
   ============================================================ */
.blog-footer {
  border-top: 1px solid var(--border);
  padding: 24px 40px;
}

.blog-footer-inner {
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 16px;
}

.blog-footer-logo {
  display: flex;
  align-items: center;
  gap: 6px;
  font-weight: 600;
  font-size: 14px;
  color: var(--fg);
}

.blog-footer-copy {
  flex: 1;
  font-size: 13px;
  color: var(--fg-muted);
}

.blog-footer-rss {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 13px;
  font-weight: 500;
  color: var(--fg-muted);
  transition: color 0.15s;
}

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


/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 640px) {
  .blog-container,
  .article-container { padding: 40px 20px 60px; }
  .blog-nav { padding: 0 20px; }
  .blog-footer { padding: 20px; }
  .blog-footer-inner { flex-wrap: wrap; gap: 10px; }
}