/* ==========================================================================
   Built by Bowman — Example Library. Sibling of ai-receptionist.css (same
   design system: Deep Slate / Electric Blue / Amber, DM Serif + DM Sans).
   NOTE: section backgrounds are set with body+element+class selectors
   (specificity 0,1,2) because design-tokens.css paints every <section>
   white/light-gray via section:nth-of-type() at (0,1,1).
   ========================================================================== */

:root {
  --lib-slate: #0B1F3A;
  --lib-slate-2: #14304F;
  --lib-blue: #0EA5E9;
  --lib-blue-ink: #0369A1;
  --lib-amber: #F59E0B;
  --lib-amber-ink: #B45309;
  --lib-ink: #0F172A;
  --lib-body: #334155;
  --lib-muted: #64748B;
  --lib-line: #E2E8F0;
  --lib-surface: #F8FAFC;
  --lib-white: #FFFFFF;
  --lib-radius: 12px;
  --lib-radius-sm: 8px;
}

.lib-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.25rem;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}

/* ----- Hero ----- */
.lib-hero { padding: 2.75rem 0 2.5rem; }
body section.lib-hero { background: linear-gradient(180deg, var(--lib-slate) 0%, var(--lib-slate-2) 100%); }
.lib-eyebrow {
  font-size: 0.8125rem; font-weight: 700; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--lib-blue); margin: 0 0 0.9rem; text-align: center;
}
.lib-h1 {
  font-family: "DM Serif Display", Georgia, serif;
  font-size: 2.9rem; line-height: 1.08; color: var(--lib-white);
  margin: 0 0 1rem; text-align: center;
}
.lib-sub {
  font-size: 1.125rem; line-height: 1.65; color: rgba(255,255,255,0.88);
  max-width: 760px; margin: 0 0 1.75rem; text-align: center;
}
.lib-stats {
  display: flex; flex-wrap: wrap; justify-content: center;
  gap: 1rem 2.5rem; margin: 0 0 1rem;
}
.lib-stat { display: flex; flex-direction: column; align-items: center; }
.lib-stat-num {
  font-family: "DM Serif Display", Georgia, serif;
  font-size: 2.1rem; line-height: 1.05; color: var(--lib-white);
}
.lib-stat-label { font-size: 0.8125rem; color: rgba(255,255,255,0.75); text-transform: uppercase; letter-spacing: 0.08em; }
.lib-note { font-size: 0.8125rem; color: rgba(255,255,255,0.6); margin: 0; text-align: center; }

/* ----- Intro prose ----- */
.lib-intro { padding: 2.25rem 0 0.5rem; }
body section.lib-intro { background: var(--lib-white); }
.lib-prose { max-width: 760px; text-align: center; }
.lib-prose p { font-size: 1rem; line-height: 1.75; color: var(--lib-body); margin: 0 0 1.1rem; text-align: center; }

/* ----- Sections ----- */
.lib-business, .lib-publishing, .lib-commerce, .lib-accountability, .lib-network, .lib-machinery { padding: 2.5rem 0; }
body section.lib-business { background: var(--lib-white); }
body section.lib-publishing { background: var(--lib-surface); }
body section.lib-commerce { background: var(--lib-white); }
body section.lib-accountability { background: var(--lib-surface); }
body section.lib-network { background: var(--lib-white); }
body section.lib-machinery { background: var(--lib-surface); }
.lib-section-h {
  font-family: "DM Serif Display", Georgia, serif;
  font-size: 1.9rem; line-height: 1.15; color: var(--lib-ink);
  margin: 0 0 0.6rem; text-align: center;
}
.lib-section-sub {
  font-size: 1rem; line-height: 1.6; color: var(--lib-muted);
  max-width: 720px; margin: 0 0 1.5rem; text-align: center;
}

/* ----- Cards ----- */
.lib-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1rem;
  width: 100%;
}
.lib-card {
  display: flex; flex-direction: column; align-items: center; gap: 0.35rem;
  background: var(--lib-white);
  border: 1px solid var(--lib-line);
  border-radius: var(--lib-radius);
  padding: 1.3rem 1.15rem;
  text-decoration: none;
  text-align: center;
  transition: transform 0.12s ease, box-shadow 0.12s ease;
}
body section.lib-publishing .lib-card,
body section.lib-accountability .lib-card,
body section.lib-machinery .lib-card { background: var(--lib-white); }
body section.lib-business .lib-card,
body section.lib-commerce .lib-card,
body section.lib-network .lib-card { background: var(--lib-surface); }
a.lib-card:hover { transform: translateY(-2px); box-shadow: 0 10px 24px rgba(15,23,42,0.09); }
.lib-card-wide { grid-column: 1 / -1; }
.lib-card-name { font-weight: 700; color: var(--lib-ink); font-size: 1.05rem; text-align: center; }
.lib-card-count {
  font-family: "DM Serif Display", Georgia, serif;
  font-size: 1.5rem; line-height: 1.1; color: var(--lib-blue-ink); text-align: center;
}
.lib-card-desc { font-size: 0.9375rem; line-height: 1.6; color: var(--lib-body); text-align: center; }
.lib-card-links { font-size: 0.9375rem; line-height: 1.7; text-align: center; }
.lib-card-links a { color: var(--lib-blue-ink); font-weight: 600; text-decoration: none; }
.lib-card-links a:hover { text-decoration: underline; }
.lib-tags { display: flex; flex-wrap: wrap; justify-content: center; gap: 0.4rem; margin-top: 0.45rem; }
.lib-tag {
  font-size: 0.75rem; font-weight: 600; color: var(--lib-blue-ink);
  border: 1px solid var(--lib-line); border-radius: 999px;
  padding: 0.18rem 0.6rem; background: rgba(14,165,233,0.07);
  text-align: center;
}

/* ----- CTA band ----- */
.lib-cta { padding: 2.75rem 0 3rem; }
body section.lib-cta { background: linear-gradient(180deg, var(--lib-slate-2) 0%, var(--lib-slate) 100%); }
.lib-on-dark { color: var(--lib-white); }
.lib-on-dark-sub { color: rgba(255,255,255,0.85); }
.lib-cta-actions { display: flex; flex-wrap: wrap; justify-content: center; align-items: center; gap: 1rem 1.5rem; margin: 0; }
.lib-btn {
  display: inline-block;
  background: var(--lib-amber); color: var(--lib-ink);
  font-weight: 700; font-size: 1rem; text-decoration: none;
  padding: 0.85rem 1.6rem; border-radius: var(--lib-radius-sm);
  transition: background 0.15s ease, transform 0.1s ease;
}
.lib-btn:hover { background: var(--lib-amber-ink); color: var(--lib-white); }
.lib-btn:active { transform: scale(0.99); }
.lib-cta-link { color: var(--lib-white); font-weight: 600; text-decoration: none; }
.lib-cta-link:hover { text-decoration: underline; }

/* ----- Mobile ----- */
@media (max-width: 820px) {
  .lib-h1 { font-size: 2.3rem; }
  .lib-hero { padding: 2.25rem 0 2rem; }
  .lib-stats { gap: 0.9rem 1.75rem; }
  .lib-stat-num { font-size: 1.8rem; }
}
@media (max-width: 640px) {
  .lib-section-h { font-size: 1.6rem; }
  .lib-business, .lib-publishing, .lib-commerce, .lib-accountability, .lib-network, .lib-machinery { padding: 2rem 0; }
  .lib-card-count { font-size: 1.35rem; }
}