/* ============================================================
   FastBin — Articles (index + long-form reading)
   Depends on css/styles.css for tokens and .nav / .page / .btn
   ============================================================ */

/* ---------- Shared header ---------- */

.art-head {
  max-width: 760px;
  margin: 0 auto 48px;
  padding-top: 24px;
}

.art-eyebrow {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 14px;
}

.art-head h1 {
  font-size: 34px;
  line-height: 1.2;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-bottom: 14px;
}

.art-lede {
  font-size: 16px;
  line-height: 1.65;
  color: var(--text-secondary);
}

.art-meta {
  display: flex;
  gap: 14px;
  align-items: center;
  flex-wrap: wrap;
  margin-top: 20px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-tertiary);
}

.art-meta .dot { width: 3px; height: 3px; border-radius: 50%; background: var(--border-strong); }

/* ---------- Index listing ---------- */

.art-list {
  max-width: 760px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.art-group-label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-tertiary);
  margin: 36px 0 14px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border-faint);
}

.art-group-label:first-of-type { margin-top: 0; }

.art-card {
  display: block;
  padding: 20px;
  border: 1px solid transparent;
  border-radius: 8px;
  transition: background 0.15s ease, border-color 0.15s ease;
}

.art-card:hover {
  background: var(--bg-surface);
  border-color: var(--border-default);
}

.art-card h2 {
  font-size: 17px;
  font-weight: 500;
  letter-spacing: -0.01em;
  margin-bottom: 7px;
}

.art-card:hover h2 { color: var(--accent); }

.art-card p {
  font-size: 14px;
  line-height: 1.6;
  color: var(--text-secondary);
}

.art-card .art-meta { margin-top: 12px; }

.art-pill {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 4px;
  background: var(--accent-faint);
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

/* ---------- Long-form body ---------- */

.art-body {
  max-width: 720px;
  margin: 0 auto;
  font-size: 15px;
  line-height: 1.75;
  color: var(--text-primary);
}

.art-body > * + * { margin-top: 20px; }

.art-body h2 {
  font-size: 22px;
  font-weight: 600;
  letter-spacing: -0.015em;
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1px solid var(--border-faint);
}

.art-body h3 {
  font-size: 16px;
  font-weight: 600;
  margin-top: 32px;
  color: var(--text-primary);
}

.art-body p { color: var(--text-secondary); }
.art-body strong { color: var(--text-primary); font-weight: 500; }

.art-body a {
  color: var(--accent);
  border-bottom: 1px solid var(--accent-dim);
  transition: border-color 0.15s ease;
}
.art-body a:hover { border-bottom-color: var(--accent); }

.art-body ul, .art-body ol { padding-left: 22px; color: var(--text-secondary); }
.art-body li + li { margin-top: 9px; }
.art-body li::marker { color: var(--text-tertiary); }

.art-body code {
  font-family: var(--font-mono);
  font-size: 0.88em;
  padding: 2px 5px;
  border-radius: 4px;
  background: var(--bg-surface);
  border: 1px solid var(--border-faint);
  color: var(--text-primary);
}

.art-body pre {
  background: var(--bg-canvas);
  border: 1px solid var(--border-faint);
  border-radius: 8px;
  padding: 16px;
  overflow-x: auto;
}

.art-body pre code {
  background: none;
  border: none;
  padding: 0;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--text-secondary);
}

.art-body table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13.5px;
  display: block;
  overflow-x: auto;
}

.art-body th, .art-body td {
  text-align: left;
  padding: 10px 12px;
  border-bottom: 1px solid var(--border-faint);
}

.art-body th {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--text-tertiary);
  font-weight: 400;
}

.art-body td { color: var(--text-secondary); }
.art-body td code { white-space: nowrap; }

/* ---------- Callout ---------- */

.art-note {
  border-left: 2px solid var(--accent);
  background: var(--accent-faint);
  border-radius: 0 8px 8px 0;
  padding: 16px 18px;
}

.art-note p { color: var(--text-secondary); margin: 0; }
.art-note p + p { margin-top: 10px; }

.art-note.warn { border-left-color: var(--warning); background: var(--warning-faint); }

/* ---------- Try-it CTA ---------- */

.art-cta {
  max-width: 720px;
  margin: 56px auto 0;
  padding: 24px;
  border: 1px solid var(--border-default);
  border-radius: 10px;
  background: var(--bg-surface);
}

.art-cta h3 { font-size: 16px; font-weight: 600; margin-bottom: 8px; }
.art-cta p { font-size: 14px; color: var(--text-secondary); margin-bottom: 16px; }

/* ---------- Related ---------- */

.art-related {
  max-width: 720px;
  margin: 48px auto 0;
  padding-top: 28px;
  border-top: 1px solid var(--border-faint);
}

.art-related h3 {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-tertiary);
  margin-bottom: 14px;
}

.art-related a {
  display: block;
  padding: 12px 0;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border-faint);
  transition: color 0.15s ease;
}

.art-related a:last-child { border-bottom: none; }
.art-related a:hover { color: var(--accent); }

.art-related .art-rel-num {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-tertiary);
  margin-right: 10px;
}

/* ---------- Breadcrumb ---------- */

.art-crumb {
  max-width: 760px;
  margin: 0 auto 28px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-tertiary);
}

.art-crumb a:hover { color: var(--accent); }
.art-crumb span { margin: 0 7px; color: var(--border-strong); }

@media (max-width: 720px) {
  .art-head h1 { font-size: 26px; }
  .art-body { font-size: 14.5px; }
}