:root{--apb-color-surface:#fff;--apb-color-surface-subtle:#f8fafc;--apb-color-surface-muted:#f1f5f9;--apb-color-text-primary:#0f172a;--apb-color-text-secondary:#475467;--apb-color-text-tertiary:#475569;--apb-color-text-muted:#64748b;--apb-color-text-subtle:#94a3b8;--apb-color-text-subtle-alpha:#94a3b8b5;--apb-color-text-faint:#999;--apb-color-text-inverse:#fff;--apb-color-border:#e2e8f0;--apb-color-border-strong:#cbd5e1;--apb-color-border-soft:#e4e4e7;--apb-color-border-muted:#d0d5dd;--apb-color-primary:#2563eb;--apb-color-primary-hover:#1d4ed8;--apb-color-primary-deep:#1e3a5f;--apb-color-primary-soft:#eff6ff;--apb-color-primary-soft-hover:#dbeafe;--apb-color-danger:#dc2626;--apb-color-danger-hover:#b91c1c;--apb-color-error-bg:#fff5f5;--apb-color-error-border:#feb2b2;--apb-color-error-text:#c53030;--apb-color-error-text-strong:#9b2c2c;--apb-color-text-success:#15803d;--apb-color-success-soft:#f0fdf4;--apb-color-success-soft-hover:#dcfce7;--apb-color-success-border-soft:#bbf7d0;--apb-shadow-success-hover:0 4px 12px #16a34a24;--apb-color-text-warning:#ea580c;--apb-color-neutral-900:#333;--apb-color-disabled-bg:#e5e7eb;--apb-color-disabled-border:#d1d5db;--apb-color-disabled-text:#9ca3af;--apb-overlay-backdrop:#0f172ab3;--apb-shadow-card:0 2px 12px #0f172a0f;--apb-shadow-modal:0 20px 50px #0f172a4d;--apb-shadow-panel:0 2px 4px #0000001a;--apb-shadow-primary-hover:0 4px 12px #2563eb29;--apb-color-overlay-light:#fff3;--apb-color-overlay-light-hover:#ffffff4d;--apb-color-overlay-white-85:#ffffffd9;--apb-color-focus-ring:#2563eb33;--apb-color-primary-tint:#2563eb1f;--apb-color-primary-focus-shadow:0 0 0 2px #3b82f61a;--apb-radius-sm:6px;--apb-radius-md:8px;--apb-radius-lg:12px;--apb-radius-xl:16px;--apb-radius-pill:999px}.guide-page{width:100%;min-height:0;max-width:var(--apb-page-max-width);padding:0 var(--apb-page-gutter-desktop) 2.5rem;box-sizing:border-box;flex-direction:column;flex:auto;margin:0 auto;display:flex}.guide-page__intro{max-width:42rem;margin-bottom:1.5rem}.guide-page__intro h2{color:var(--apb-color-text-primary);margin:0 0 .5rem;font-size:1.15rem;font-weight:600}.guide-page__intro p{color:var(--apb-color-text-secondary);margin:0;font-size:.95rem;line-height:1.55}.guide-page__section-grid{grid-template-columns:repeat(auto-fill,minmax(14rem,1fr));gap:.75rem;margin-bottom:2rem;display:grid}.guide-page__section-card{border:1px solid var(--apb-color-border);border-radius:var(--apb-radius-md);background:var(--apb-color-surface);box-shadow:var(--apb-shadow-card);color:inherit;flex-direction:column;align-items:flex-start;gap:.35rem;padding:.85rem 1rem;text-decoration:none;transition:border-color .15s,box-shadow .15s;display:flex}.guide-page__section-card:hover{border-color:var(--apb-color-border-strong);box-shadow:var(--apb-shadow-panel)}.guide-page__section-card-title{color:var(--apb-color-primary-deep);font-size:.95rem;font-weight:600}.guide-page__section-card-desc{color:var(--apb-color-text-muted);font-size:.85rem;line-height:1.45}.guide-shell{grid-template-columns:minmax(0,1fr);align-items:start;gap:1.25rem;padding-top:1rem;display:grid}@media (width>=900px){.guide-shell{grid-template-columns:13rem minmax(0,1fr);gap:2rem;padding-top:1.25rem}.guide-shell--single{grid-template-columns:minmax(0,1fr)}}.guide-shell__topics{border-bottom:1px solid var(--apb-color-border);flex-flow:wrap;gap:.35rem;margin:0;padding:0 0 .75rem;list-style:none;display:flex}@media (width>=900px){.guide-shell__topics{border-bottom:none;flex-flow:column;gap:.2rem;padding-bottom:0;position:sticky;top:1rem}}.guide-shell__topic-link{border-radius:var(--apb-radius-sm);color:var(--apb-color-text-muted);border:1px solid #0000;padding:.4rem .65rem;font-size:.9rem;font-weight:500;text-decoration:none;display:inline-block}@media (width>=900px){.guide-shell__topic-link{box-sizing:border-box;width:100%;padding:.45rem .6rem;display:block}}.guide-shell__topic-link:hover{color:var(--apb-color-primary-deep);background:var(--apb-color-surface-muted)}.guide-shell__topic-link--active{color:var(--apb-color-primary-deep);background:var(--apb-color-primary-soft);border-color:var(--apb-color-border);font-weight:600}.guide-article{background:var(--apb-color-surface);border:1px solid var(--apb-color-border);border-radius:var(--apb-radius-md);box-shadow:var(--apb-shadow-panel);min-width:0;padding:1.25rem 1.5rem}.guide-article__eyebrow{text-transform:uppercase;letter-spacing:.04em;color:var(--apb-color-text-muted);margin:0 0 .35rem;font-size:.8rem;font-weight:600}.guide-article__title{color:var(--apb-color-text-primary);margin:0 0 .75rem;font-size:1.45rem;font-weight:700;line-height:1.25}.guide-article__lead{color:var(--apb-color-text-secondary);margin:0 0 1.25rem;font-size:1rem;line-height:1.55}.guide-prose{color:var(--apb-color-text-secondary);font-size:.95rem;line-height:1.6}.guide-prose p{margin:0 0 .85rem}.guide-prose p:last-child{margin-bottom:0}.guide-prose ul{margin:0 0 .85rem;padding-left:1.25rem}.guide-prose li{margin-bottom:.35rem}.guide-prose strong{color:var(--apb-color-text-primary);font-weight:600}.guide-prose a{color:var(--apb-color-primary);text-underline-offset:2px;text-decoration:underline}.guide-prose a:hover{color:var(--apb-color-primary-hover)}@media (width<=640px){.guide-page{padding-left:var(--apb-page-gutter-mobile);padding-right:var(--apb-page-gutter-mobile)}}