/* ── Article layout ──────────────────────────────────────────── */
.article {
  max-width: 720px;
  margin-inline: auto;
  padding-block: clamp(1.5rem, 4vw, 2.5rem);
}

/* Compact "back" link above the title and at the foot of the article. */
.article__back {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  padding: 0.25rem 0;
  transition: color var(--dur-fast) var(--ease), gap var(--dur-fast) var(--ease);
}
.article__back:hover {
  color: var(--color-accent-hover);
  gap: 0.5rem;
}
.article__back svg {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
}

/* Header: meta line + title + lead paragraph. */
.article__header {
  margin-block-start: 1.5rem;
  margin-block-end: clamp(1.5rem, 4vw, 2.5rem);
  padding-block-end: clamp(1.5rem, 4vw, 2.5rem);
  border-bottom: 1px solid var(--color-border);
}
.article__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-text-faint);
  margin-bottom: 1rem;
}
.article__meta time { white-space: nowrap; }
.article__meta .article__category { color: var(--color-accent); }
.article__meta .article__sep { color: var(--color-border-strong); }

.article__title {
  font-size: clamp(1.875rem, 4.5vw, 2.875rem);
  line-height: 1.15;
  letter-spacing: -0.015em;
  margin: 0 0 1rem;
  color: var(--color-text);
}
.article__lead {
  font-size: clamp(1.0625rem, 1.6vw, 1.1875rem);
  line-height: 1.6;
  color: var(--color-text-muted);
  margin: 0;
}

/* ── Article body typography ─────────────────────────────────── */
.article__body { font-size: 1rem; line-height: 1.75; color: var(--color-text); }
.article__body > * + * { margin-top: 1.25rem; }
.article__body > h2 { margin-top: 2.5rem; }
.article__body > h3 { margin-top: 1.75rem; }

.article__body h2 {
  font-size: clamp(1.25rem, 2.4vw, 1.625rem);
  font-weight: 600;
  line-height: 1.25;
  color: var(--color-text);
  margin-bottom: 0.625rem;
}
.article__body h3 {
  font-size: 1.125rem;
  font-weight: 600;
  line-height: 1.3;
  color: var(--color-text);
  margin-bottom: 0.5rem;
}

.article__body p {
  margin: 0;
  color: var(--color-text);
}
.article__body p + p { margin-top: 1rem; }

.article__body a {
  color: var(--color-accent);
  border-bottom: 1px solid transparent;
  transition: color var(--dur-fast) var(--ease),
              border-color var(--dur-fast) var(--ease);
}
.article__body a:hover {
  color: var(--color-accent-hover);
  border-bottom-color: var(--color-accent-hover);
}

.article__body strong { font-weight: 600; color: var(--color-text); }
.article__body em { font-style: italic; }

/* Lists — accent square markers, indented but not over-indented. */
.article__body ul,
.article__body ol {
  margin: 0;
  padding-left: 1.5rem;
}
.article__body li { margin-bottom: 0.5rem; line-height: 1.7; }
.article__body li:last-child { margin-bottom: 0; }
.article__body ul { list-style: none; padding-left: 0; }
.article__body ul > li {
  position: relative;
  padding-left: 1.5rem;
}
.article__body ul > li::before {
  content: "";
  position: absolute;
  left: 0.25rem;
  top: 0.65em;
  width: 8px;
  height: 8px;
  border-radius: 2px;
  background: var(--color-accent);
}
.article__body ol { padding-left: 1.5rem; }
.article__body ol > li::marker {
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-weight: 600;
}

/* Inline code — small mono, faint surface. */
.article__body code {
  font-family: var(--font-mono);
  font-size: 0.875em;
  padding: 0.1em 0.4em;
  background: hsla(var(--hue), 22%, 90%, 0.55);
  border-radius: var(--radius-xs);
  color: var(--color-text);
}

/* Block code — glass card, scrollable horizontally on overflow. */
.article__body pre {
  margin: 0;
  padding: 1.125rem 1.25rem;
  background: var(--color-surface);
  -webkit-backdrop-filter: var(--glass-blur);
          backdrop-filter: var(--glass-blur);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md), inset 0 1px 0 hsla(0,0%,100%,0.6);
  overflow-x: auto;
}
@supports not ((backdrop-filter: blur(1px)) or (-webkit-backdrop-filter: blur(1px))) {
  .article__body pre { background: var(--color-surface-strong); }
}
.article__body pre code {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  line-height: 1.6;
  padding: 0;
  background: transparent;
  color: var(--color-text);
  white-space: pre;
}

/* Blockquote — accent left border, italic body. */
.article__body blockquote {
  margin: 0;
  padding: 0.75rem 1.25rem;
  border-left: 3px solid var(--color-accent);
  background: hsla(var(--hue), 22%, 90%, 0.35);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-style: italic;
  color: var(--color-text-muted);
}
.article__body blockquote p { margin: 0; }
.article__body blockquote p + p { margin-top: 0.5rem; }

/* Horizontal rule between sections, if needed. */
.article__body hr {
  border: 0;
  border-top: 1px solid var(--color-border);
  margin-block: 2rem;
}