:root {
  --ink: #0f1f2e; --ink-2: #3d4f60; --muted: #66768a; --line: #dfe5ec; --bg: #ffffff; --soft: #f4f7fa;
  --brand: #0b6e6e; --brand-d: #085454; --brand-soft: #e3f2f1; --ok: #127a3d; --ok-bg: #e5f5eb; --bad: #b42318; --bad-bg: #fdecea;
  --r: 10px; --font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
}
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; font: 16px/1.6 var(--font); color: var(--ink); background: var(--bg); }
a { color: var(--brand); text-underline-offset: 2px; }
a:hover { color: var(--brand-d); }
h1, h2, h3 { line-height: 1.2; margin: 0 0 .5em; letter-spacing: -0.01em; }
h1 { font-size: clamp(1.8rem, 4vw, 2.6rem); }
h2 { font-size: 1.3rem; margin-top: 1.6em; }
.card h2, .prov-grid h2 { margin-top: 0; font-size: 1.1rem; }
p, ul, ol, dl { margin: 0 0 1em; }
.wrap { max-width: 1120px; margin: 0 auto; padding: 0 20px; }
.narrow { max-width: 780px; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip { position: absolute; left: -999px; } .skip:focus { left: 12px; top: 12px; background: #fff; padding: 8px; z-index: 9; }
.muted { color: var(--muted); } .small { font-size: .9rem; } .mono { font-family: var(--mono); font-size: .92em; }

/* header / footer */
.top { border-bottom: 1px solid var(--line); background: #fff; }
.top-in { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 60px; flex-wrap: wrap; }
.logo { display: flex; align-items: center; gap: 8px; font-weight: 700; font-size: 1.1rem; color: var(--ink); text-decoration: none; }
.logo-mark { background: var(--brand); color: #fff; border-radius: 6px; padding: 2px 7px; font-size: .85rem; letter-spacing: .04em; }
.top nav ul { display: flex; gap: 4px 18px; list-style: none; margin: 0; padding: 0; flex-wrap: wrap; }
.top nav a { color: var(--ink-2); text-decoration: none; font-size: .95rem; padding: 6px 0; display: inline-block; }
.top nav a:hover, .top nav a[aria-current] { color: var(--brand); }
.foot { margin-top: 64px; background: var(--soft); border-top: 1px solid var(--line); padding: 40px 0 28px; font-size: .92rem; color: var(--ink-2); }
.foot-in { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 28px; }
.foot ul { list-style: none; padding: 0; } .foot li { margin-bottom: 6px; }
.foot-brand, .foot-h { font-weight: 700; color: var(--ink); margin-bottom: 8px; }
.crumbs ol { display: flex; flex-wrap: wrap; gap: 6px; list-style: none; padding: 14px 0 0; margin: 0; font-size: .88rem; color: var(--muted); }
.crumbs li + li::before { content: "›"; margin-right: 6px; }

/* hero + search */
.hero { background: linear-gradient(180deg, var(--brand-soft), #fff); padding: 56px 0 40px; text-align: center; }
.lead { font-size: 1.12rem; color: var(--ink-2); }
.search { margin: 18px 0; text-align: left; }
.search-main { display: flex; gap: 8px; }
.search input, .search select { font: inherit; border: 1px solid #c8d2dc; border-radius: var(--r); padding: 10px 12px; background: #fff; color: var(--ink); width: 100%; }
.search-main input { flex: 1; font-size: 1.05rem; }
.search-big .search-main input { padding: 15px 16px; font-size: 1.15rem; box-shadow: 0 2px 10px rgb(15 31 46 / .06); }
button, .btn { font: inherit; font-weight: 600; border: 0; border-radius: var(--r); background: var(--brand); color: #fff; padding: 10px 20px; cursor: pointer; text-decoration: none; display: inline-block; }
button:hover, .btn:hover { background: var(--brand-d); color: #fff; }
.search-big button { padding: 0 30px; font-size: 1.1rem; }
button:disabled { opacity: .5; cursor: default; }
.btn.ghost { background: #fff; color: var(--brand); border: 1px solid var(--brand); }
.btn.ghost:hover { background: var(--brand-soft); }
.search-more { margin-top: 10px; }
.search-more summary { cursor: pointer; color: var(--brand); font-size: .95rem; }
.search-filters { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-top: 10px; }
.search-filters label { font-size: .88rem; color: var(--ink-2); display: grid; gap: 4px; }
input:focus-visible, select:focus-visible, textarea:focus-visible, button:focus-visible, a:focus-visible { outline: 3px solid #7cc7c4; outline-offset: 1px; }
.try { font-size: .92rem; color: var(--muted); }
.try a { margin: 0 6px; }
.ticks { display: flex; justify-content: center; gap: 22px; list-style: none; padding: 0; color: var(--ink-2); font-size: .93rem; flex-wrap: wrap; }
.ticks li::before { content: "✓"; color: var(--ok); font-weight: 700; margin-right: 6px; }

/* blocks */
.page-head { padding: 28px 0 6px; }
.tiles { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin: 32px 0; }
.tile, .guide-list a { display: grid; gap: 4px; padding: 18px; border: 1px solid var(--line); border-radius: var(--r); text-decoration: none; color: var(--ink-2); background: #fff; font-size: .95rem; }
.tile:hover, .guide-list a:hover { border-color: var(--brand); box-shadow: 0 2px 10px rgb(15 31 46 / .06); }
.tile-h { font-weight: 700; color: var(--ink); font-size: 1.02rem; }
.guide-list { list-style: none; padding: 0; display: grid; gap: 10px; }
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 36px; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; list-style: none; padding: 0; }
.chips a { display: inline-block; border: 1px solid var(--line); border-radius: 999px; padding: 6px 13px; text-decoration: none; font-size: .93rem; color: var(--ink); background: #fff; }
.chips a:hover { border-color: var(--brand); color: var(--brand); }
.chips.small a { font-size: .85rem; padding: 4px 10px; }
.chips.big a { font-size: 1rem; padding: 9px 16px; }
.cta { display: flex; justify-content: space-between; align-items: center; gap: 20px; background: var(--brand-soft); border: 1px solid #bfe0de; border-radius: var(--r); padding: 20px 24px; margin: 36px 0; }
.cta p { margin: 0; } .cta-h { font-weight: 700; font-size: 1.08rem; margin-bottom: 4px !important; }
.cta .btn { white-space: nowrap; }
.card { border: 1px solid var(--line); border-radius: var(--r); padding: 20px; margin-bottom: 18px; background: #fff; }
.card.note { background: var(--soft); }
.alert { background: var(--bad-bg); color: var(--bad); border-radius: var(--r); padding: 12px 16px; }
.faq details { border-bottom: 1px solid var(--line); padding: 12px 0; }
.faq summary { cursor: pointer; font-weight: 600; }
.faq details div { padding-top: 8px; color: var(--ink-2); }
.prose { font-size: 1.02rem; } .prose li { margin-bottom: 6px; }
pre { background: var(--soft); border: 1px solid var(--line); border-radius: var(--r); padding: 12px; overflow-x: auto; }
code { font-family: var(--mono); font-size: .9em; }

/* provider */
.prov-head { padding: 24px 0 10px; }
.eyebrow { color: var(--brand); font-weight: 600; font-size: .9rem; margin-bottom: 4px; }
.prov-sub { font-size: 1.1rem; color: var(--ink-2); }
.prov-npi { display: flex; flex-wrap: wrap; gap: 14px 36px; padding: 16px 20px; background: var(--soft); border-radius: var(--r); align-items: center; }
.prov-npi > div { display: grid; gap: 2px; }
.label { font-size: .8rem; color: var(--muted); text-transform: uppercase; letter-spacing: .05em; }
.prov-npi > div:first-child { display: block; } .prov-npi > div:first-child .label { display: block; }
.npi-num { font-family: var(--mono); font-size: 1.35rem; font-weight: 700; }
.copy { padding: 2px 10px; font-size: .8rem; background: #fff; color: var(--brand); border: 1px solid var(--brand); margin-left: 6px; }
.copy:hover { background: var(--brand-soft); color: var(--brand); }
.badge { display: inline-block; font-weight: 700; border-radius: 999px; padding: 2px 12px; font-size: .9rem; }
.badge.ok { background: var(--ok-bg); color: var(--ok); } .badge.bad { background: var(--bad-bg); color: var(--bad); }
.prov-grid { display: grid; grid-template-columns: 1.6fr 1fr; gap: 18px; margin-top: 20px; }
.facts { display: grid; grid-template-columns: max-content 1fr; gap: 8px 20px; margin: 0; }
.facts dt { color: var(--muted); } .facts dd { margin: 0; }
address { font-style: normal; margin-bottom: 6px; }
.loc + .loc { border-top: 1px solid var(--line); padding-top: 10px; margin-top: 10px; }
.table-scroll { overflow-x: auto; }
.tbl { width: 100%; border-collapse: collapse; font-size: .93rem; }
.tbl th, .tbl td { text-align: left; padding: 9px 10px; border-bottom: 1px solid var(--line); vertical-align: top; }
.tbl th { font-size: .8rem; text-transform: uppercase; letter-spacing: .04em; color: var(--muted); font-weight: 600; background: var(--soft); }
.results { list-style: none; padding: 0; display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; }
.results a { display: grid; padding: 12px 14px; border: 1px solid var(--line); border-radius: var(--r); text-decoration: none; color: var(--ink-2); font-size: .92rem; }
.results a:hover { border-color: var(--brand); }
.r-name { font-weight: 600; color: var(--ink); font-size: 1rem; } .r-npi { font-family: var(--mono); font-size: .85rem; color: var(--muted); }
.count { color: var(--ink-2); font-weight: 600; }
.more { text-align: center; margin: 18px 0; }
.plain { list-style: none; padding: 0; } .plain li { margin-bottom: 6px; }
.filter input { font: inherit; width: 100%; max-width: 480px; padding: 11px 14px; border: 1px solid #c8d2dc; border-radius: var(--r); }

/* bulk */
.bulk textarea { width: 100%; font: 15px/1.5 var(--mono); padding: 12px; border: 1px solid #c8d2dc; border-radius: var(--r); resize: vertical; }
.label-big { display: block; font-weight: 600; margin-bottom: 8px; }
.bulk-row { display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; margin: 10px 0; }
.file { font-size: .93rem; color: var(--ink-2); }
.bulk-actions { display: flex; gap: 10px; flex-wrap: wrap; margin: 6px 0 10px; }
.progress .bar { height: 10px; background: var(--soft); border-radius: 99px; overflow: hidden; border: 1px solid var(--line); }
.progress .bar span { display: block; height: 100%; width: 0; background: var(--brand); transition: width .2s; }
.bulk-sum { display: flex; gap: 10px; flex-wrap: wrap; margin: 14px 0; }
.bulk-sum span { background: var(--soft); border-radius: 8px; padding: 6px 12px; font-size: .92rem; }
.wl fieldset { border: 0; padding: 0; margin: 0 0 12px; display: grid; gap: 8px; }
.wl label { display: block; }
.wl-row { display: flex; gap: 8px; max-width: 520px; }
.wl-row input { flex: 1; font: inherit; padding: 10px 12px; border: 1px solid #c8d2dc; border-radius: var(--r); }

@media (max-width: 860px) {
  .tiles { grid-template-columns: 1fr 1fr; } .split, .prov-grid, .foot-in { grid-template-columns: 1fr; }
  .results { grid-template-columns: 1fr; } .search-filters { grid-template-columns: 1fr; }
  .cta { flex-direction: column; align-items: flex-start; }
}
@media (max-width: 520px) {
  .tiles { grid-template-columns: 1fr; } .search-main { flex-direction: column; } .search-big button { padding: 14px; }
  .hero { padding: 36px 0 28px; } .top nav ul { gap: 2px 14px; }
}
.prov-grid > div, .split > div { min-width: 0; }