/* EquityStack — clean, fast, credible. System fonts only, no frameworks, no JS. */
:root {
  --ink: #1f2937;
  --ink-soft: #4b5563;
  --muted: #6b7280;
  --line: #e5e7eb;
  --bg: #ffffff;
  --bg-soft: #f8fafc;
  --accent: #1d4ed8;
  --accent-dark: #1e40af;
  --placeholder-bg: #fef3c7;
  --placeholder-border: #d97706;
  --radius: 10px;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.7;
  font-size: 17px;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ---------- header ---------- */
.site-header {
  border-bottom: 1px solid var(--line);
  background: var(--bg);
}
.header-inner {
  max-width: 1080px;
  margin: 0 auto;
  padding: 14px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand {
  font-weight: 800;
  font-size: 1.25rem;
  color: var(--ink);
  letter-spacing: -0.02em;
}
.brand span { color: var(--accent); }
.brand:hover { text-decoration: none; }
.nav a {
  margin-left: 20px;
  color: var(--ink-soft);
  font-size: 0.95rem;
}
.nav a:hover { color: var(--accent); }

/* ---------- layout ---------- */
.wrap { max-width: 1080px; margin: 0 auto; padding: 0 20px; }
.article { max-width: 730px; margin: 0 auto; padding: 0 20px; }

main { padding: 44px 0 20px; }

/* ---------- hero ---------- */
.hero { padding: 28px 0 36px; }
.hero h1 {
  font-size: 2.4rem;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin: 0 0 14px;
}
.hero p.lede {
  font-size: 1.15rem;
  color: var(--ink-soft);
  max-width: 640px;
  margin: 0;
}
.hero .tagline {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent);
  margin-bottom: 12px;
}

/* ---------- article cards ---------- */
.section-title { font-size: 1.35rem; margin: 10px 0 20px; letter-spacing: -0.01em; }
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(290px, 1fr));
  gap: 20px;
  margin-bottom: 48px;
}
.card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px;
  background: var(--bg);
  display: flex;
  flex-direction: column;
}
.card:hover { border-color: var(--accent); }
.card .kicker {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--accent);
  margin-bottom: 8px;
}
.card h2, .card h3 { font-size: 1.12rem; line-height: 1.4; margin: 0 0 10px; }
.card h2 a, .card h3 a { color: var(--ink); }
.card p { color: var(--ink-soft); font-size: 0.95rem; margin: 0 0 14px; flex: 1; }
.card .meta { font-size: 0.82rem; color: var(--muted); }

/* ---------- article typography ---------- */
.article h1 {
  font-size: 2.1rem;
  line-height: 1.25;
  letter-spacing: -0.02em;
  margin: 0 0 10px;
}
.article .byline { color: var(--muted); font-size: 0.92rem; margin-bottom: 8px; }
.article .article-kicker {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent);
  margin-bottom: 10px;
}
.article h2 { font-size: 1.45rem; margin: 38px 0 12px; letter-spacing: -0.01em; }
.article h3 { font-size: 1.15rem; margin: 28px 0 8px; }
.article p { margin: 0 0 18px; }
.article ul, .article ol { margin: 0 0 18px; padding-left: 24px; }
.article li { margin-bottom: 8px; }
.article blockquote {
  border-left: 3px solid var(--accent);
  margin: 0 0 18px;
  padding: 8px 0 8px 18px;
  color: var(--ink-soft);
  background: var(--bg-soft);
  border-radius: 0 var(--radius) var(--radius) 0;
}
.article table {
  width: 100%;
  border-collapse: collapse;
  margin: 0 0 22px;
  font-size: 0.95rem;
}
.article th, .article td {
  text-align: left;
  padding: 10px 12px;
  border: 1px solid var(--line);
}
.article th { background: var(--bg-soft); font-weight: 700; }
.example-note {
  font-size: 0.88rem;
  color: var(--muted);
  font-style: italic;
}

/* ---------- key takeaway (AEO direct-answer block) ---------- */
.key-takeaway {
  border: 1px solid var(--line);
  border-left: 4px solid var(--accent);
  border-radius: 0 var(--radius) var(--radius) 0;
  background: var(--bg-soft);
  padding: 16px 20px;
  margin: 24px 0 30px;
  font-size: 0.98rem;
}
.key-takeaway .takeaway-label {
  font-size: 0.78rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent);
  margin-bottom: 8px;
}
.key-takeaway p { margin: 0 0 10px; }
.key-takeaway p:last-child { margin-bottom: 0; }

/* ---------- inline affiliate disclosure (sits next to affiliate links) ---------- */
.affiliate-inline {
  font-size: 0.85rem;
  color: var(--muted);
  margin: 6px 0 18px;
}
.affiliate-inline strong { color: var(--ink-soft); }

/* ---------- FAQ section ---------- */
.faq { margin: 36px 0 10px; }
.faq h2 { margin-bottom: 16px; }
.faq-item {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 14px 18px;
  margin-bottom: 12px;
  background: var(--bg);
}
.faq-item h3 { margin: 0 0 8px; font-size: 1.02rem; }
.faq-item p { margin: 0; font-size: 0.95rem; color: var(--ink-soft); }

/* ---------- tables: horizontal scroll on narrow screens ---------- */
.table-scroll { overflow-x: auto; margin: 0 0 22px; }
.table-scroll table { margin-bottom: 0; min-width: 560px; }
.affiliate-placeholder {
  display: inline-block;
  background: var(--placeholder-bg);
  border: 2px dashed var(--placeholder-border);
  border-radius: 6px;
  padding: 2px 10px;
  font-weight: 700;
  font-size: 0.9rem;
  color: #92400e;
  white-space: nowrap;
}

/* ---------- disclosure boxes ---------- */
.affiliate-notice {
  max-width: 1080px;
  margin: 30px auto 0;
  padding: 0 20px;
}
.affiliate-notice .box {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--bg-soft);
  padding: 14px 18px;
  font-size: 0.86rem;
  color: var(--ink-soft);
}
.advice-disclaimer {
  border-left: 3px solid var(--placeholder-border);
  background: #fffbeb;
  border-radius: 0 var(--radius) var(--radius) 0;
  padding: 12px 18px;
  font-size: 0.9rem;
  color: var(--ink-soft);
  margin: 30px 0;
}

/* ---------- footer ---------- */
footer {
  border-top: 1px solid var(--line);
  margin-top: 40px;
  padding: 28px 0 40px;
  font-size: 0.86rem;
  color: var(--muted);
}
.footer-inner {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 20px;
}
.footer-inner nav a { color: var(--muted); margin-right: 18px; }
.footer-inner p { margin: 10px 0 0; max-width: 720px; }

/* ---------- misc ---------- */
.cta-box {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px;
  background: var(--bg-soft);
  margin: 30px 0;
}
.cta-box h3 { margin-top: 0; }

@media (max-width: 640px) {
  .hero h1 { font-size: 1.8rem; }
  .article h1 { font-size: 1.6rem; }
  body { font-size: 16px; }
  .nav a { margin-left: 12px; }
  .affiliate-placeholder { white-space: normal; }
  .header-inner { padding: 12px 16px; }
}