/* ===========================
   Blog shared styles
   =========================== */

:root {
  --bg: #0A0A0E;
  --text: #E8E8EC;
  --text-secondary: #8888A0;
  --accent: #6366F1;
  --accent-hover: #818CF8;
  --card-bg: rgba(18, 18, 24, 0.90);
  --card-border: rgba(99, 102, 241, 0.15);
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}

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

html { font-size: 16px; }

body {
  font-family: var(--font);
  background-color: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: color 0.2s;
}

a:hover {
  color: var(--accent-hover);
}

/* Nav (reused from main) */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 100;
  padding: 0 24px;
  background-color: rgba(10, 10, 14, 0.8);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.nav__inner {
  max-width: 1080px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.nav__logo {
  font-weight: 600;
  font-size: 16px;
  color: var(--text);
}

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

.nav__links { display: flex; gap: 32px; }

.nav__link {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  letter-spacing: 0.02em;
}

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

/* Footer (reused from main) */
.footer {
  padding: 32px 24px;
  border-top: 1px solid var(--card-border);
}

.footer__inner {
  max-width: 1080px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer__copy {
  font-size: 13px;
  color: var(--text-secondary);
}

.footer__links { display: flex; gap: 24px; }

.footer__links a {
  font-size: 13px;
  color: var(--text-secondary);
}

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

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

.blog-list {
  padding: 120px 24px 64px;
}

.blog-list__inner {
  max-width: 1080px;
  margin: 0 auto;
}

.blog-list__title {
  font-size: 36px;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}

.blog-list__subtitle {
  font-size: 17px;
  color: var(--text-secondary);
  margin-bottom: 48px;
}

.articles__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.article-card {
  display: flex;
  flex-direction: column;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 12px;
  padding: 24px;
  transition: border-color 0.2s, transform 0.2s;
  color: var(--text);
}

.article-card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
  color: var(--text);
}

.article-card__date {
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.article-card__title {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 8px;
  letter-spacing: -0.01em;
  line-height: 1.4;
}

.article-card__description {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.5;
  flex-grow: 1;
  margin-bottom: 16px;
}

.article-card__tags {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 12px;
}

.article-card__tag {
  font-size: 12px;
  color: var(--accent);
  background: rgba(99, 102, 241, 0.1);
  padding: 2px 10px;
  border-radius: 100px;
}

.articles__empty {
  color: var(--text-secondary);
  font-size: 15px;
  grid-column: 1 / -1;
  text-align: center;
  padding: 32px 0;
}

/* ===========================
   Individual Article Page
   =========================== */

.article {
  max-width: 720px;
  margin: 0 auto;
  padding: 120px 24px 64px;
}

.article__header {
  margin-bottom: 48px;
}

.article__back {
  font-size: 14px;
  color: var(--text-secondary);
  display: inline-block;
  margin-bottom: 24px;
}

.article__back:hover {
  color: var(--accent);
}

.article__title {
  font-size: 40px;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.2;
  margin-bottom: 16px;
}

.article__meta {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.article__date {
  font-size: 14px;
  color: var(--text-secondary);
}

.article__tags {
  display: flex;
  gap: 8px;
}

/* Article content typography */
.article__content {
  font-size: 17px;
  line-height: 1.8;
  color: var(--text-secondary);
}

.article__content h2 {
  font-size: 28px;
  font-weight: 700;
  color: var(--text);
  margin-top: 48px;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}

.article__content h3 {
  font-size: 22px;
  font-weight: 600;
  color: var(--text);
  margin-top: 36px;
  margin-bottom: 12px;
}

.article__content p {
  margin-bottom: 24px;
}

.article__content a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.article__content a:hover {
  color: var(--accent-hover);
}

.article__content strong {
  color: var(--text);
  font-weight: 600;
}

.article__content ul,
.article__content ol {
  margin-bottom: 24px;
  padding-left: 24px;
}

.article__content li {
  margin-bottom: 8px;
}

.article__content blockquote {
  border-left: 3px solid var(--accent);
  padding-left: 20px;
  margin: 24px 0;
  font-style: italic;
  color: var(--text-secondary);
}

.article__content pre {
  background: rgba(10, 10, 14, 0.8);
  border: 1px solid var(--card-border);
  border-radius: 8px;
  padding: 20px;
  overflow-x: auto;
  margin-bottom: 24px;
}

.article__content code {
  font-family: var(--font-mono);
  font-size: 15px;
}

.article__content p code,
.article__content li code {
  background: rgba(99, 102, 241, 0.1);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 14px;
  color: var(--accent);
}

.article__content img {
  max-width: 100%;
  border-radius: 8px;
  margin: 24px 0;
}

.article__content hr {
  border: none;
  border-top: 1px solid var(--card-border);
  margin: 40px 0;
}

/* Copy code button */
.copy-code-btn {
  position: absolute;
  top: 8px;
  right: 8px;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  color: var(--text-secondary);
  font-family: var(--font);
  font-size: 12px;
  padding: 4px 10px;
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.2s;
}

.copy-code-btn:hover {
  color: var(--text);
  border-color: var(--accent);
}

/* Original article link */
.article__original {
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1px solid var(--card-border);
  font-size: 14px;
}

.article__original a {
  color: var(--text-secondary);
}

.article__original a:hover {
  color: var(--accent);
}

/* ===========================
   Responsive
   =========================== */

@media (max-width: 768px) {
  .articles__grid {
    grid-template-columns: 1fr;
  }

  .article__title {
    font-size: 32px;
  }

  .article__content {
    font-size: 16px;
  }

  .footer__inner {
    flex-direction: column;
    gap: 16px;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .nav__links { gap: 20px; }
  .nav__link { font-size: 13px; }
  .article__title { font-size: 28px; }
}


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