:root{color-scheme:light;--bg: #f6f7f8;--surface: #ffffff;--ink: #1e2930;--muted: #5c6870;--line: #d9d2c7;--accent: #0f766e;--accent-dark: #115e59;--brand-soft: #e0f2f1;--brand-ink: #0f4f4a;--warning: #b45309;--free: #0f766e;--gated: #475569}*{box-sizing:border-box}body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;background:var(--bg);color:var(--ink);line-height:1.55}a{color:var(--accent-dark)}.site-shell{min-height:100vh;display:flex;flex-direction:column}.site-header,.site-footer{background:var(--surface);border-bottom:1px solid var(--line)}.site-footer{border-top:1px solid var(--line);border-bottom:0;margin-top:auto}.nav,.footer-inner,.container{width:min(1120px,calc(100% - 32px));margin:0 auto}.nav{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:16px 0}.nav-links{display:flex;flex-wrap:wrap;align-items:center;gap:16px}.brand{display:inline-flex;align-items:center;gap:10px;font-weight:800;color:var(--ink);text-decoration:none}.brand img{width:36px;height:36px;flex:0 0 auto}.button{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:10px 16px;border:1px solid var(--accent);border-radius:6px;background:var(--accent);color:#fff;font-weight:700;text-decoration:none;cursor:pointer}.button.secondary{background:transparent;color:var(--accent-dark)}.hero{padding:64px 0 40px}.compact-hero{padding-bottom:24px}.home-hero,.checklist-hero,.content-with-sidebar,.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:32px;align-items:start}.hero h1{max-width:760px;margin:0 0 16px;font-size:clamp(2.25rem,5vw,4.75rem);line-height:1}.hero p{max-width:680px;color:var(--muted);font-size:1.2rem}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:18px}.card,.feature-panel,.sidebar-panel,.toc-box,.article-card,.section-band{background:var(--surface);border:1px solid var(--line);border-radius:8px;padding:20px}.feature-panel{margin-top:18px}.eyebrow{color:var(--brand-ink);font-weight:800;text-transform:uppercase;letter-spacing:0;font-size:.8rem}.tier-free{color:var(--free)}.tier-gated{color:var(--gated)}.muted{color:var(--muted)}.chip-row{display:flex;flex-wrap:wrap;gap:8px;align-items:center}.chip{display:inline-flex;align-items:center;min-height:28px;border-radius:999px;background:#dbeafe;color:#0f3f91;padding:4px 10px;font-size:.88rem;font-weight:650;text-decoration:none}.filter-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:24px}.stats-grid,.library-grid{margin-bottom:32px}.section-band{display:grid;grid-template-columns:minmax(0,1fr) minmax(240px,420px);gap:24px;align-items:center;margin-bottom:28px}.library-card{display:flex;flex-direction:column;gap:8px}.library-card .button{margin-top:auto;align-self:flex-start}.tier-card-free{border-color:color-mix(in srgb,var(--free) 35%,var(--line))}.tier-card-gated{border-color:color-mix(in srgb,var(--gated) 24%,var(--line))}.related-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:18px;margin-top:28px;margin-bottom:40px}.article-list{display:grid;gap:18px}.article-card h2{margin-bottom:8px}.article-card p{color:var(--muted)}.article-meta,.metric-row{display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;align-items:center;color:var(--muted)}.metric-row{justify-content:flex-start;margin:18px 0}.metric-row span{border:1px solid var(--line);border-radius:999px;background:var(--surface);padding:6px 10px;font-size:.92rem}.breadcrumbs{display:flex;flex-wrap:wrap;gap:8px;color:var(--muted);margin-bottom:20px}.article-main h1{font-size:2.6rem;line-height:1.08;margin-bottom:12px}.article-summary{color:var(--muted);font-size:1.12rem}.article-meta-line{color:var(--muted);margin-bottom:22px}.toc-box{background:#eef5ff;border-color:#bfd7ff;margin:24px 0 36px}.toc-box h2{margin-top:0}.toc-box li{margin-bottom:8px}.prose{max-width:760px}.prose h2{margin-top:42px;font-size:1.7rem}.prose h3{margin-top:28px}.prose p,.prose li{color:#334155;font-size:1.03rem}.prose li{margin-bottom:8px}.legal-page{max-width:880px;margin-bottom:48px}.checklist-detail{width:100%}.download-card h2,.sidebar-panel h2{margin-top:0}.form-note{color:var(--muted);font-size:.9rem}button:disabled,.button[aria-disabled=true]{cursor:wait;opacity:.68}.checklist-preview{padding-left:20px}.plain-list{list-style:none;padding:0;margin:0 0 18px}.plain-list li{border-bottom:1px solid var(--line);padding:8px 0}.form-row{display:grid;gap:6px;margin-bottom:14px}input,select{width:100%;min-height:42px;border:1px solid var(--line);border-radius:6px;padding:8px 10px;font:inherit}.hidden-field{position:absolute;left:-10000px;width:1px;height:1px;overflow:hidden}@media(max-width:860px){.home-hero,.checklist-hero,.content-with-sidebar,.article-layout,.section-band{grid-template-columns:1fr}.hero h1,.article-main h1{font-size:2.2rem}}