:root{--bg: #ffffff;--bg-subtle: #f6f8fa;--bg-inset: #f0f2f5;--text: #16191d;--text-muted: #4b5563;--border: #d0d7de;--accent: #3451b2;--accent-contrast: #ffffff;--accent-subtle: #eef1fb;--good: #1a7f37;--good-bg: #e7f6ec;--payer: #6d28d9;--payer-bg: #f1eafd;--warn-bg: #fff8e6;--warn-border: #e8c66b;--code-bg: #f6f8fa;--shadow: 0 1px 3px rgba(20, 24, 40, .08);--mono: ui-monospace, "SFMono-Regular", Menlo, Consolas, "Liberation Mono", monospace;--sans: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;color-scheme:light}@media(prefers-color-scheme:dark){:root:not([data-theme=light]){--bg: #0e1116;--bg-subtle: #161b22;--bg-inset: #1c2129;--text: #e6e9ee;--text-muted: #9aa4b2;--border: #30363d;--accent: #8da2f0;--accent-contrast: #0e1116;--accent-subtle: #1b2033;--good: #4ac26b;--good-bg: #12261a;--payer: #c4a7f7;--payer-bg: #241a38;--warn-bg: #2a2413;--warn-border: #7a6420;--code-bg: #161b22;--shadow: none;color-scheme:dark}}:root[data-theme=dark]{--bg: #0e1116;--bg-subtle: #161b22;--bg-inset: #1c2129;--text: #e6e9ee;--text-muted: #9aa4b2;--border: #30363d;--accent: #8da2f0;--accent-contrast: #0e1116;--accent-subtle: #1b2033;--good: #4ac26b;--good-bg: #12261a;--payer: #c4a7f7;--payer-bg: #241a38;--warn-bg: #2a2413;--warn-border: #7a6420;--code-bg: #161b22;--shadow: none;color-scheme:dark}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:var(--sans);font-size:1rem;line-height:1.6;background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased}main{display:block}h1,h2,h3,h4{line-height:1.25;letter-spacing:-.01em}h1{font-size:clamp(1.75rem,4vw,2.5rem);margin:0 0 .5rem}h2{font-size:1.5rem;margin:2.5rem 0 .75rem}h3{font-size:1.15rem;margin:1.75rem 0 .5rem}p{margin:.6rem 0}a{color:var(--accent);text-decoration-thickness:1px;text-underline-offset:2px}a:hover{text-decoration-thickness:2px}code{font-family:var(--mono);font-size:.9em;background:var(--code-bg);border:1px solid var(--border);border-radius:4px;padding:.1em .35em}pre code{background:none;border:none;padding:0}ul{padding-left:1.4rem}li{margin:.35rem 0}hr{border:none;border-top:1px solid var(--border);margin:2.5rem 0}:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:2px}.skip-link{position:absolute;left:-9999px;background:var(--accent);color:var(--accent-contrast);padding:.5rem 1rem;z-index:100}.skip-link:focus{left:.5rem;top:.5rem}.container{max-width:68rem;margin:0 auto;padding:0 1.25rem}.muted{color:var(--text-muted)}.small{font-size:.875rem}.site-header{border-bottom:1px solid var(--border);background:var(--bg);position:sticky;top:0;z-index:10}.site-header .container{display:flex;align-items:center;gap:1rem;flex-wrap:wrap;padding-top:.65rem;padding-bottom:.65rem}.brand{font-weight:700;text-decoration:none;color:var(--text);white-space:nowrap;display:inline-flex;align-items:center;gap:.5rem}.brand .mark{display:inline-block;width:.75rem;height:.75rem;border-radius:2px;background:var(--accent)}.site-nav{display:flex;gap:.25rem .9rem;flex-wrap:wrap;margin-left:auto;align-items:center}.site-nav a{color:var(--text-muted);text-decoration:none;font-size:.925rem;padding:.25rem .2rem}.site-nav a:hover,.site-nav a[aria-current=page]{color:var(--text)}.site-nav a[aria-current=page]{font-weight:600}.theme-toggle{border:1px solid var(--border);background:var(--bg-subtle);color:var(--text);border-radius:6px;padding:.25rem .55rem;cursor:pointer;font-size:.85rem;line-height:1.4}.theme-toggle:hover{border-color:var(--accent)}.site-footer{border-top:1px solid var(--border);margin-top:4rem;padding:2rem 0 3rem;color:var(--text-muted);font-size:.9rem}.site-footer .container{display:flex;flex-wrap:wrap;gap:1rem 2.5rem;justify-content:space-between}.site-footer a{color:var(--text-muted)}.hero{padding:3.5rem 0 2.5rem}.hero .lede{font-size:1.2rem;color:var(--text-muted);max-width:46rem}.cta-row{display:flex;gap:.75rem;flex-wrap:wrap;margin:1.5rem 0}.btn{display:inline-block;border-radius:6px;padding:.55rem 1.1rem;font-weight:600;text-decoration:none;border:1px solid transparent}.btn.primary{background:var(--accent);color:var(--accent-contrast)}.btn.primary:hover{filter:brightness(1.08)}.btn.secondary{border-color:var(--border);color:var(--text);background:var(--bg-subtle)}.btn.secondary:hover{border-color:var(--accent)}.card-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(15.5rem,1fr));gap:1rem;margin:1.25rem 0;padding:0;list-style:none}.card{border:1px solid var(--border);border-radius:8px;padding:1rem 1.1rem;background:var(--bg);box-shadow:var(--shadow);display:flex;flex-direction:column;gap:.4rem}.card h3{margin:0;font-size:1.05rem}.card h3 a{color:var(--text);text-decoration:none}.card h3 a:hover{color:var(--accent);text-decoration:underline}.card .meta{display:flex;gap:.4rem;flex-wrap:wrap;align-items:center}.card p{margin:.15rem 0 0;font-size:.9rem;color:var(--text-muted)}.card.featured{border-color:var(--accent)}.step-cards{grid-template-columns:repeat(auto-fit,minmax(14rem,1fr))}.step-cards .card strong{font-size:1rem}.step-num{font-family:var(--mono);color:var(--accent);font-weight:700;font-size:.85rem}.badge{display:inline-block;font-size:.72rem;font-weight:600;letter-spacing:.02em;border-radius:999px;padding:.1rem .6rem;border:1px solid transparent;white-space:nowrap}.badge.tested{background:var(--good-bg);color:var(--good);border-color:color-mix(in srgb,var(--good) 35%,transparent)}.badge.payer{background:var(--payer-bg);color:var(--payer);border-color:color-mix(in srgb,var(--payer) 35%,transparent)}.badge.pattern{background:var(--bg-inset);color:var(--text-muted);border-color:var(--border);font-family:var(--mono);font-weight:500}.badge.vertical{background:var(--accent-subtle);color:var(--accent);border-color:color-mix(in srgb,var(--accent) 30%,transparent)}.codeblock{position:relative;margin:1rem 0}.codeblock pre{background:var(--code-bg);border:1px solid var(--border);border-radius:8px;padding:1rem 1.1rem;overflow-x:auto;font-family:var(--mono);font-size:.84rem;line-height:1.55;margin:0;tab-size:2}.codeblock .copy-btn{position:absolute;top:.5rem;right:.5rem;border:1px solid var(--border);background:var(--bg);color:var(--text-muted);border-radius:6px;font-size:.75rem;padding:.25rem .6rem;cursor:pointer}.codeblock .copy-btn:hover{color:var(--text);border-color:var(--accent)}.codeblock .copy-btn.copied{color:var(--good);border-color:var(--good)}.callout{border:1px solid var(--border);border-left:4px solid var(--accent);border-radius:6px;background:var(--bg-subtle);padding:.85rem 1.1rem;margin:1.25rem 0}.callout.warn{border-left-color:var(--warn-border);background:var(--warn-bg)}.callout.honest{border-left-color:var(--good)}.callout>.callout-title{font-weight:700;display:block;margin-bottom:.25rem}.callout :first-child{margin-top:0}.callout :last-child{margin-bottom:0}.pillars{display:grid;grid-template-columns:repeat(auto-fit,minmax(13rem,1fr));gap:1rem;padding:0;list-style:none}.pillars li{border:1px solid var(--border);border-radius:8px;padding:.9rem 1rem;background:var(--bg-subtle)}.pillars strong{display:block;margin-bottom:.2rem}.pillars span{color:var(--text-muted);font-size:.9rem}.table-wrap{overflow-x:auto;margin:1rem 0}table{border-collapse:collapse;width:100%;font-size:.92rem}th,td{border:1px solid var(--border);padding:.5rem .75rem;text-align:left;vertical-align:top}th{background:var(--bg-subtle)}.cred-strip{border:1px solid var(--border);border-radius:8px;background:var(--bg-subtle);padding:1rem 1.25rem;display:flex;flex-wrap:wrap;gap:.5rem 2rem;align-items:center;margin:2rem 0;font-size:.95rem}.cred-strip .stat strong{color:var(--good)}.filter-bar{display:flex;flex-wrap:wrap;gap:.5rem;margin:1rem 0 1.5rem}.filter-bar button{border:1px solid var(--border);background:var(--bg-subtle);color:var(--text-muted);border-radius:999px;padding:.25rem .85rem;font-size:.85rem;cursor:pointer}.filter-bar button[aria-pressed=true]{background:var(--accent);color:var(--accent-contrast);border-color:var(--accent);font-weight:600}.rail-diagram{margin:1.5rem 0}.rail-diagram svg{width:100%;height:auto;display:block}.integration-header .meta-row{display:flex;gap:.5rem;flex-wrap:wrap;align-items:center;margin:.5rem 0 1rem}.section-label{text-transform:uppercase;letter-spacing:.08em;font-size:.75rem;font-weight:700;color:var(--text-muted);margin:2.25rem 0 .35rem}.link-list{padding-left:1.2rem}details.faq-item{border:1px solid var(--border);border-radius:8px;padding:.75rem 1.1rem;margin:.75rem 0;background:var(--bg)}details.faq-item summary{font-weight:600;cursor:pointer}details.faq-item[open] summary{margin-bottom:.5rem}@media(max-width:40rem){.hero{padding-top:2.25rem}.site-nav{gap:.2rem .7rem}}