.so4-books{--so4-ink:#001d33;--so4-blue:#326bff;--so4-green:#42ba91;--so4-fg:#001d33;--so4-fg-2:#3a4a5c;--so4-muted:#7a7a76;--so4-line:rgba(0,29,51,.1);--so4-radius-lg:16px;background:#fff;color:var(--so4-fg);font-family:Lato,system-ui,sans-serif;padding:112px 0 96px}.so4-books__inner{margin:0 auto;max-width:1200px;padding:0 32px}.so4-books__intro{align-items:start;display:grid;gap:80px;grid-template-columns:minmax(0,1fr) minmax(0,1.2fr);margin-bottom:56px}.so4-books__headline{color:var(--so4-fg);font-family:Plus Jakarta Sans,Lato,sans-serif;font-size:44px;font-weight:500;letter-spacing:-.02em;line-height:1.05;margin:0}.so4-books__copy{color:var(--so4-fg-2);font-size:18px;line-height:1.6;margin:6px 0 0}.so4-books__track{position:relative}.so4-books__line{background:var(--so4-line);height:1px;left:0;position:absolute;right:0;top:13px}.so4-books__grid{display:grid;gap:20px;grid-template-columns:repeat(3,minmax(0,1fr));position:relative}.so4-books__col{display:flex;flex-direction:column;gap:24px}.so4-books__dot-wrap{align-items:center;display:flex;height:28px;padding-left:35px}.so4-books__dot{background:var(--so4-blue);border-radius:50%;display:block;height:11px;width:11px}.so4-books__dot--pulse{animation:so4-pulse 2.4s cubic-bezier(.16,.84,.44,1) infinite;background:var(--so4-green)}.so4-books__card{background:#fff;border:1px solid var(--so4-line);border-radius:var(--so4-radius-lg);box-shadow:0 1px 2px rgba(0,29,51,.04);color:var(--so4-blue);display:flex;flex:1;flex-direction:column;gap:14px;padding:28px}.so4-books__card--dark{background:var(--so4-ink);border-color:var(--so4-ink);box-shadow:0 12px 32px rgba(0,29,51,.18);color:var(--so4-green)}.so4-books__card-top{align-items:center;display:flex;justify-content:space-between}.so4-books__code{color:var(--so4-muted);font-family:Plus Jakarta Sans,Lato,sans-serif;font-size:12px;font-weight:700;letter-spacing:.14em;white-space:nowrap}.so4-books__card--dark .so4-books__code{color:var(--so4-green)}.so4-books__title{color:var(--so4-fg);font-family:Plus Jakarta Sans,Lato,sans-serif;font-size:22px;font-weight:700;letter-spacing:-.01em;line-height:1.2;margin:0;min-height:2.4em}.so4-books__card--dark .so4-books__title{color:#fff}.so4-books__desc{color:var(--so4-fg-2);font-size:16px;line-height:1.55;margin:0}.so4-books__card--dark .so4-books__desc{color:hsla(0,0%,100%,.72)}@keyframes so4-pulse{0%{box-shadow:0 0 0 0 rgba(66,186,145,.45)}70%{box-shadow:0 0 0 14px rgba(66,186,145,0)}to{box-shadow:0 0 0 0 rgba(66,186,145,0)}}@media (max-width:1024px){.so4-books__intro{gap:20px;grid-template-columns:1fr;margin-bottom:40px}.so4-books__headline{font-size:32px}.so4-books__grid{grid-template-columns:1fr}.so4-books__line{display:none}}@media (max-width:768px){.so4-books{padding:64px 0 48px}.so4-books__inner{padding:0 20px}}@media (prefers-reduced-motion:reduce){.so4-books__dot--pulse{animation:none}}