/* The Business AI Guide — clean, fast, mobile-first. No frameworks. */
:root {
  --ink: #1c2530;
  --muted: #5b6673;
  --line: #e3e7ea;
  --bg: #fafaf8;
  --card: #ffffff;
  --accent: #047857;
  --accent-dark: #065f46;
  --accent-soft: #e6f4ef;
  --header-bg: #12202b;
  --header-ink: #f2f5f4;
  --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;
  font-size: 17px;
  line-height: 1.6;
  color: var(--ink);
  background: var(--bg);
}
a { color: var(--accent-dark); }
a:hover { text-decoration-thickness: 2px; }
h1, h2, h3 { line-height: 1.25; color: var(--ink); }
h1 { font-size: 2rem; margin: 0 0 0.6rem; }
h2 { font-size: 1.45rem; margin: 2rem 0 0.6rem; }
h3 { font-size: 1.15rem; margin: 1.4rem 0 0.4rem; }
p { margin: 0 0 1rem; }
ul, ol { margin: 0 0 1rem; padding-left: 1.3rem; }
li { margin-bottom: 0.35rem; }
.wrap { max-width: 1020px; margin: 0 auto; padding: 0 18px; }

/* Header */
.site-header { background: var(--header-bg); color: var(--header-ink); }
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-top: 14px;
  padding-bottom: 14px;
  flex-wrap: wrap;
}
.wordmark { display: flex; align-items: center; gap: 10px; color: var(--header-ink); text-decoration: none; }
.wordmark-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px; height: 36px;
  border-radius: 8px;
  background: var(--accent);
  color: #fff;
  font-weight: 800;
  font-size: 1.25rem;
}
.wordmark-text { font-size: 1.15rem; }
.main-nav { display: flex; gap: 4px; flex-wrap: wrap; }
.main-nav a {
  color: var(--header-ink);
  text-decoration: none;
  padding: 6px 10px;
  border-radius: 6px;
}
.main-nav a:hover { background: rgba(255,255,255,0.12); }
.cat-nav { border-top: 1px solid rgba(255,255,255,0.14); }
.cat-nav .wrap { display: flex; gap: 4px; flex-wrap: wrap; padding-top: 8px; padding-bottom: 8px; }
.cat-nav a {
  color: #cfe3da;
  text-decoration: none;
  font-size: 0.92rem;
  padding: 4px 10px;
  border-radius: 999px;
}
.cat-nav a:hover { background: rgba(255,255,255,0.12); color: #fff; }

/* Main */
main.wrap { padding-top: 28px; padding-bottom: 48px; }
.hero {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px 24px;
  margin-bottom: 28px;
}
.hero p.lede { font-size: 1.15rem; color: var(--muted); max-width: 640px; }
.hero-note { font-size: 0.95rem; color: var(--muted); }
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
}
.card {
  display: block;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px 20px;
  text-decoration: none;
  color: var(--ink);
}
a.card:hover { border-color: var(--accent); }
.card h3 { margin: 0 0 6px; }
.card h3 a { color: var(--ink); text-decoration: none; }
.card p { color: var(--muted); margin: 0; font-size: 0.97rem; }
.card .card-cta { display: inline-block; margin-top: 10px; color: var(--accent-dark); font-weight: 600; font-size: 0.95rem; }
.section-intro { color: var(--muted); max-width: 680px; }
.prose { max-width: 760px; }
.prose .meta { color: var(--muted); font-size: 0.95rem; }
.prose .lede { font-size: 1.15rem; color: var(--muted); }
.article-image { margin: 0 0 1rem; }
.article-image img { max-width: 100%; height: auto; border-radius: var(--radius); }
.empty-note {
  background: var(--accent-soft);
  border: 1px solid #bfe3d4;
  border-radius: var(--radius);
  padding: 16px 18px;
}
.callout {
  background: var(--card);
  border-left: 4px solid var(--accent);
  border-radius: 0 var(--radius) var(--radius) 0;
  padding: 14px 18px;
  margin: 1.2rem 0;
}
.steps { counter-reset: step; list-style: none; padding: 0; }
.steps li { counter-increment: step; padding-left: 42px; position: relative; margin-bottom: 1rem; }
.steps li::before {
  content: counter(step);
  position: absolute;
  left: 0; top: 0;
  width: 28px; height: 28px;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  font-weight: 700;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.9rem;
}

/* Tables */
table { width: 100%; border-collapse: collapse; margin: 0 0 1rem; font-size: 0.95rem; }
th, td { text-align: left; padding: 10px 12px; border: 1px solid var(--line); vertical-align: top; }
th { background: var(--accent-soft); }
code { background: #eef1f2; padding: 1px 5px; border-radius: 4px; font-size: 0.9em; }

/* Forms */
form.stacked label { display: block; font-weight: 600; margin: 0 0 4px; }
form.stacked input[type="text"],
form.stacked input[type="email"],
form.stacked textarea {
  width: 100%;
  max-width: 560px;
  font: inherit;
  padding: 10px 12px;
  border: 1px solid #c8cfd4;
  border-radius: 8px;
  margin-bottom: 14px;
  background: #fff;
}
form.stacked textarea { min-height: 140px; resize: vertical; }
.form-errors {
  background: #fdecea;
  border: 1px solid #f0b4ae;
  border-radius: var(--radius);
  padding: 12px 16px;
  margin-bottom: 16px;
  max-width: 560px;
}
.btn {
  display: inline-block;
  font: inherit;
  font-weight: 600;
  padding: 10px 18px;
  border-radius: 8px;
  border: 1px solid #c8cfd4;
  background: #fff;
  color: var(--ink);
  cursor: pointer;
  text-decoration: none;
}
.btn-primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-dark); }
.btn-link { border: none; background: none; color: var(--accent-dark); text-decoration: underline; padding: 10px 8px; }
.link-button {
  background: none; border: none; padding: 0;
  font: inherit; color: #9fb8ab; text-decoration: underline; cursor: pointer;
}
.link-button:hover { color: #fff; }

/* Footer */
.site-footer { background: var(--header-bg); color: #c8d2cc; margin-top: 20px; }
.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 28px;
  padding-top: 32px;
  padding-bottom: 24px;
}
.footer-brand { color: #fff; font-weight: 700; font-size: 1.1rem; margin: 0 0 8px; }
.footer-heading { color: #fff; font-weight: 700; margin: 0 0 8px; }
.footer-links { list-style: none; padding: 0; margin: 0; }
.footer-links li { margin-bottom: 6px; }
.footer-links a { color: #c8d2cc; text-decoration: none; }
.footer-links a:hover { color: #fff; text-decoration: underline; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.14); padding-top: 14px; padding-bottom: 18px; font-size: 0.9rem; }
.footer-bottom p { margin: 0; }

/* Cookie banner */
.consent-banner {
  position: fixed;
  left: 0; right: 0; bottom: 0;
  background: #fff;
  border-top: 2px solid var(--accent);
  box-shadow: 0 -6px 24px rgba(0,0,0,0.16);
  z-index: 50;
}
.consent-inner { max-width: 1020px; margin: 0 auto; padding: 18px; }
.consent-title { font-weight: 700; margin: 0 0 4px; }
.consent-text { margin: 0 0 12px; font-size: 0.95rem; color: var(--muted); }
.consent-options { display: flex; flex-direction: column; gap: 6px; margin-bottom: 12px; font-size: 0.95rem; }
.consent-note { color: var(--muted); }
.consent-actions { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }
.consent-policy { margin: 10px 0 0; font-size: 0.9rem; }
[hidden] { display: none !important; }

@media (max-width: 640px) {
  body { font-size: 16px; }
  h1 { font-size: 1.6rem; }
  .hero { padding: 20px 16px; }
  .wordmark-text { font-size: 1.05rem; }
}