/* Article + Writing-index styles. Builds on the site's style.css tokens. */

:root {
  --code-bg: #f8fafc;
  --code-border: #e2e8f0;
  --article-width: 760px;
}

/* ---- Writing index (series landing) ---- */

.writing-hero {
  background: var(--color-bg-alt);
  border-bottom: 1px solid var(--color-border);
  padding-top: 2rem;
}

.writing-title {
  font-size: clamp(2rem, 5vw, 2.75rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: 1.25rem;
}

.writing-intro {
  font-size: 1.02rem;
  color: var(--color-text-muted);
  max-width: var(--article-width);
  line-height: 1.8;
  margin-bottom: 1rem;
}

.writing-intro a { color: var(--color-accent); font-weight: 500; }
.writing-intro a:hover { text-decoration: underline; }

.writing-hero .section-title a { color: inherit; text-decoration: none; }
.writing-hero .section-title a:hover { text-decoration: underline; }

.article-cards { display: flex; flex-direction: column; gap: 1rem; }

.article-card {
  display: flex;
  gap: 1.25rem;
  align-items: flex-start;
  border: 1px solid var(--color-border);
  border-radius: 10px;
  padding: 1.5rem;
  transition: box-shadow 0.2s, border-color 0.2s, transform 0.2s;
}

.article-card:hover {
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.07);
  border-color: #cbd5e1;
  transform: translateY(-2px);
}

.article-card-num {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-accent);
  font-variant-numeric: tabular-nums;
  line-height: 1.2;
  opacity: 0.85;
}

.article-card-body { display: flex; flex-direction: column; gap: 0.4rem; }

.article-card-title { font-size: 1.1rem; font-weight: 600; color: var(--color-text); line-height: 1.35; }
.article-card-blurb { font-size: 0.92rem; color: var(--color-text-muted); line-height: 1.65; }
.article-card-cta { font-size: 0.85rem; font-weight: 500; color: var(--color-accent); margin-top: 0.2rem; }

/* ---- Article page shell ---- */

.article { padding: 3rem 1.5rem 4rem; }

.article-container { max-width: var(--article-width); margin: 0 auto; }

.article-eyebrow {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 1.25rem;
}

.article-eyebrow a { color: inherit; }
.article-eyebrow a:hover { text-decoration: underline; }

/* ---- Medium cross-post banner ---- */

.medium-banner {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
  align-items: center;
  justify-content: space-between;
  background: var(--color-tag-bg);
  border: 1px solid #dbeafe;
  border-radius: 8px;
  padding: 0.75rem 1rem;
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin-bottom: 2.5rem;
}

.medium-banner .medium-link { color: var(--color-accent); font-weight: 600; white-space: nowrap; }
.medium-banner .medium-link:hover { text-decoration: underline; }

/* ---- Article typography ---- */

.article-content { font-size: 1.05rem; line-height: 1.8; color: #334155; }

.article-content > h1:first-child,
.article-content h1 {
  font-size: clamp(1.8rem, 4.5vw, 2.4rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.2;
  color: var(--color-text);
  margin: 0 0 1.5rem;
}

.article-content h2 {
  font-size: 1.45rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--color-text);
  margin: 2.75rem 0 1rem;
  padding-top: 0.5rem;
}

.article-content h3 {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--color-text);
  margin: 2rem 0 0.75rem;
}

.article-content p { margin: 0 0 1.25rem; }

.article-content a { color: var(--color-accent); text-decoration: underline; text-underline-offset: 2px; }
.article-content a:hover { color: var(--color-accent-dark); }

.article-content ul, .article-content ol { margin: 0 0 1.25rem; padding-left: 1.4rem; }
.article-content ul { list-style: disc; }
.article-content ol { list-style: decimal; }
.article-content li { margin-bottom: 0.5rem; }
.article-content li::marker { color: var(--color-text-muted); }

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

.article-content blockquote {
  border-left: 3px solid var(--color-accent);
  background: var(--color-bg-alt);
  margin: 0 0 1.5rem;
  padding: 0.85rem 1.25rem;
  border-radius: 0 8px 8px 0;
  color: var(--color-text-muted);
  font-size: 1rem;
}

.article-content blockquote p:last-child { margin-bottom: 0; }

/* The first blockquote (subtitle) reads as a deck */
.article-content > blockquote:first-of-type {
  font-size: 1.15rem;
  font-style: italic;
  color: #475569;
  border-left-color: #cbd5e1;
  background: transparent;
  padding-left: 1.1rem;
}

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

/* ---- Code ---- */

.article-content code {
  font-family: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.85em;
  background: var(--code-bg);
  border: 1px solid var(--code-border);
  border-radius: 4px;
  padding: 0.1em 0.4em;
}

.article-content pre {
  background: var(--code-bg);
  border: 1px solid var(--code-border);
  border-radius: 10px;
  padding: 1.1rem 1.25rem;
  overflow-x: auto;
  margin: 0 0 1.5rem;
  line-height: 1.6;
}

.article-content pre code {
  font-size: 0.86rem;
  background: none;
  border: none;
  padding: 0;
  color: #1e293b;
}

/* ---- Tables ---- */

.article-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 0 0 1.5rem;
  font-size: 0.92rem;
}

.article-content th, .article-content td {
  border: 1px solid var(--color-border);
  padding: 0.6rem 0.85rem;
  text-align: left;
  vertical-align: top;
}

.article-content th { background: var(--color-bg-alt); font-weight: 600; color: var(--color-text); }
.article-content tr:nth-child(even) td { background: #fcfdfe; }

/* ---- Mermaid diagrams (inlined SVG) ---- */

.diagram {
  margin: 0 0 1.75rem;
  padding: 1.25rem;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: 10px;
  text-align: center;
  overflow-x: auto;
}

.diagram svg { max-width: 100%; height: auto; display: inline-block; }

/* ---- Author bio + series nav ---- */

.author-bio {
  display: flex;
  gap: 1rem;
  margin: 3rem 0 2rem;
  padding: 1.5rem;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: 12px;
}

.author-name { font-weight: 600; color: var(--color-text); margin-bottom: 0.25rem; }
.author-role { font-size: 0.9rem; color: var(--color-text-muted); line-height: 1.65; margin-bottom: 0.75rem; }
.author-links { display: flex; flex-wrap: wrap; gap: 1rem; }
.author-links a { font-size: 0.875rem; font-weight: 500; color: var(--color-accent); }
.author-links a:hover { text-decoration: underline; }

.series-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
  border-top: 1px solid var(--color-border);
  padding-top: 1.5rem;
  font-size: 0.9rem;
}

.series-nav a { color: var(--color-accent); font-weight: 500; max-width: 45%; }
.series-nav a:hover { text-decoration: underline; }
.series-all { color: var(--color-text-muted) !important; }
.series-prev { text-align: left; }
.series-next { text-align: right; margin-left: auto; }

/* ---- highlight.js — light theme tuned to the site palette ---- */

.hljs-comment, .hljs-quote { color: #94a3b8; font-style: italic; }
.hljs-keyword, .hljs-selector-tag, .hljs-built_in, .hljs-name, .hljs-tag { color: #7c3aed; }
.hljs-string, .hljs-attr, .hljs-template-tag, .hljs-addition, .hljs-regexp { color: #047857; }
.hljs-number, .hljs-literal, .hljs-type, .hljs-meta { color: #b45309; }
.hljs-title, .hljs-section, .hljs-title.function_, .hljs-function .hljs-title { color: #2563eb; }
.hljs-attribute, .hljs-variable, .hljs-template-variable, .hljs-property { color: #0f766e; }
.hljs-symbol, .hljs-bullet, .hljs-link { color: #db2777; }
.hljs-deletion { color: #dc2626; }
.hljs-emphasis { font-style: italic; }
.hljs-strong { font-weight: 700; }

/* ---- Responsive ---- */

@media (max-width: 768px) {
  .article { padding: 2rem 1.25rem 3rem; }
  .article-content { font-size: 1rem; }
  .series-nav a { max-width: 100%; }
  .article-card { flex-direction: column; gap: 0.5rem; padding: 1.25rem; }
}