:root {
    --ink: #16232E;
    --deep-blue: #1B3A56;
    --deep-blue-2: #234A6B;
    --slate-bg: #F3F6F8;
    --white: #FFFFFF;
    --teal: #3F8577;
    --teal-dark: #2F6B5F;
    --line: #D8E1E8;
    --muted: #5C7182;
    --muted-2: #8194A2;

    --display: 'Source Serif 4', Georgia, serif;
    --body: 'Inter', -apple-system, sans-serif;
    --mono: 'IBM Plex Mono', monospace;
  }

  * { margin: 0; padding: 0; box-sizing: border-box; }

  body {
    font-family: var(--body);
    color: var(--ink);
    background: var(--white);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
  }

  a { color: inherit; text-decoration: none; }
  img, svg { display: block; max-width: 100%; }

  .wrap {
    max-width: 1180px;
    margin: 0 auto;
    padding: 0 32px;
  }

  /* ---------- NAV ---------- */
  header {
    position: sticky;
    top: 0;
    z-index: 50;
    background: rgba(255,255,255,0.92);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--line);
  }
  nav.wrap {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 88px;
  }
  .logo {
    font-family: var(--display);
    font-weight: 600;
    font-size: 27px;
    color: var(--deep-blue);
    display: flex;
    align-items: baseline;
    gap: 2px;
    letter-spacing: -0.01em;
  }
  .logo span { color: var(--teal); }
  .logo small {
    font-family: var(--body);
    font-weight: 500;
    font-size: 10.5px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--muted-2);
    margin-left: 10px;
    padding-left: 10px;
    border-left: 1px solid var(--line);
  }
  .nav-links {
    display: flex;
    gap: 34px;
    align-items: center;
  }
  .nav-links a {
    font-size: 14.5px;
    font-weight: 500;
    color: var(--ink);
    opacity: 0.8;
    transition: opacity 0.15s;
  }
  .nav-links a:hover { opacity: 1; }
  .nav-links a.btn-primary {
    color: var(--white);
    opacity: 1;
  }
  .btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 11px 20px;
    border-radius: 3px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    border: 1px solid transparent;
    transition: all 0.15s;
    white-space: nowrap;
  }
  .btn-primary {
    background: var(--deep-blue);
    color: var(--white);
  }
  .btn-primary:hover { background: var(--ink); }
  .btn-ghost {
    border-color: var(--line);
    color: var(--ink);
  }
  .btn-ghost:hover { border-color: var(--muted-2); }

  @media (max-width: 860px) {
    .nav-links a:not(.btn) { display: none; }
  }

  /* ---------- HERO ---------- */
  .hero {
    background: var(--slate-bg);
    border-bottom: 1px solid var(--line);
    overflow: hidden;
  }
  .hero-grid {
    display: grid;
    grid-template-columns: 1.05fr 0.95fr;
    gap: 40px;
    align-items: center;
    padding: 84px 0 64px;
  }
  .eyebrow {
    font-family: var(--mono);
    font-size: 12px;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--teal-dark);
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 22px;
  }
  .eyebrow::before {
    content: '';
    width: 22px;
    height: 1px;
    background: var(--teal);
  }
  h1 {
    font-family: var(--display);
    font-size: 46px;
    font-weight: 600;
    line-height: 1.12;
    letter-spacing: -0.015em;
    color: var(--deep-blue);
    margin-bottom: 22px;
  }
  h1 em { font-style: italic; color: var(--teal-dark); }
  .hero-sub {
    font-size: 17.5px;
    color: var(--muted);
    max-width: 480px;
    margin-bottom: 34px;
    line-height: 1.6;
  }
  .hero-ctas { display: flex; gap: 14px; margin-bottom: 40px; }
  .hero-note {
    font-size: 13px;
    color: var(--muted-2);
    display: flex;
    align-items: center;
    gap: 8px;
  }
  .hero-note svg { width: 14px; height: 14px; }

  /* signature diagram */
  .diagram-card {
    background: var(--white);
    border: 1px solid var(--line);
    border-radius: 6px;
    padding: 36px 30px 28px;
  }
  .diagram-label {
    font-family: var(--mono);
    font-size: 11px;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--muted-2);
    margin-bottom: 20px;
  }
  .node {
    fill: var(--white);
    stroke: var(--line);
    stroke-width: 1.5;
  }
  .node-center {
    fill: var(--deep-blue);
  }
  .node-text {
    font-family: var(--body);
    font-weight: 600;
    font-size: 12.5px;
    fill: var(--ink);
  }
  .node-text-center {
    fill: var(--white);
  }
  .node-sub {
    font-family: var(--mono);
    font-size: 9.5px;
    fill: var(--muted-2);
  }
  .flow-line {
    stroke: var(--teal);
    stroke-width: 1.75;
    fill: none;
    stroke-dasharray: 320;
    stroke-dashoffset: 320;
    animation: draw 1.6s ease-out forwards;
  }
  .flow-line.d2 { animation-delay: 0.15s; }
  .flow-line.d3 { animation-delay: 0.3s; }
  .flow-line.d4 { animation-delay: 0.45s; }
  @keyframes draw { to { stroke-dashoffset: 0; } }
  @media (prefers-reduced-motion: reduce) {
    .flow-line { animation: none; stroke-dashoffset: 0; }
  }

  @media (max-width: 900px) {
    .hero-grid { grid-template-columns: 1fr; padding-top: 56px; }
    h1 { font-size: 34px; }
  }

  /* ---------- STAT STRIP ---------- */
  .stats {
    border-bottom: 1px solid var(--line);
  }
  .stat-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    padding: 40px 0;
  }
  .stat {
    padding: 0 24px;
    border-left: 1px solid var(--line);
  }
  .stat:first-child { border-left: none; padding-left: 0; }
  .stat-num {
    font-family: var(--mono);
    font-size: 27px;
    font-weight: 500;
    color: var(--deep-blue);
    letter-spacing: -0.01em;
  }
  .stat-label {
    font-size: 13px;
    color: var(--muted);
    margin-top: 6px;
  }
  @media (max-width: 760px) {
    .stat-grid { grid-template-columns: 1fr; row-gap: 28px; }
    .stat { border-left: none; padding-left: 0; }
  }

  /* ---------- SECTION SCAFFOLDING ---------- */
  section.block { padding: 88px 0; }
  .section-head { max-width: 620px; margin-bottom: 56px; }
  .section-tag {
    font-family: var(--mono);
    font-size: 12px;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--teal-dark);
    margin-bottom: 14px;
  }
  h2 {
    font-family: var(--display);
    font-size: 32px;
    font-weight: 600;
    color: var(--deep-blue);
    letter-spacing: -0.01em;
    line-height: 1.22;
  }
  .section-sub {
    font-size: 15.5px;
    color: var(--muted);
    margin-top: 14px;
    line-height: 1.65;
  }

  /* ---------- PROCESS ---------- */
  .process { background: var(--slate-bg); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
  .process-list { display: flex; flex-direction: column; }
  .process-item {
    display: grid;
    grid-template-columns: 90px 1fr;
    gap: 28px;
    padding: 30px 0;
    border-top: 1px solid var(--line);
  }
  .process-item:first-child { border-top: none; }
  .process-num {
    font-family: var(--mono);
    font-size: 14px;
    color: var(--teal-dark);
    padding-top: 3px;
  }
  .process-title {
    font-size: 17px;
    font-weight: 600;
    color: var(--ink);
    margin-bottom: 6px;
  }
  .process-desc {
    font-size: 15px;
    color: var(--muted);
    max-width: 640px;
    line-height: 1.6;
  }

  /* ---------- BENEFITS ---------- */
  .benefit-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1px;
    background: var(--line);
    border: 1px solid var(--line);
  }
  .benefit-card {
    background: var(--white);
    padding: 34px 30px;
  }
  .benefit-role {
    font-family: var(--mono);
    font-size: 11px;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--muted-2);
    margin-bottom: 16px;
  }
  .benefit-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--deep-blue);
    margin-bottom: 10px;
    font-family: var(--display);
  }
  .benefit-desc {
    font-size: 14.5px;
    color: var(--muted);
    line-height: 1.6;
  }
  @media (max-width: 860px) {
    .benefit-grid { grid-template-columns: 1fr; }
  }

  /* ---------- COMPARE GRID (traditional vs PassThruHealth) ---------- */
  .compare-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1px;
    background: var(--line);
    border: 1px solid var(--line);
  }
  .compare-card { background: var(--white); padding: 34px 30px; }
  .compare-card.highlight { background: var(--slate-bg); }
  .compare-label {
    font-family: var(--mono);
    font-size: 11px;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--muted-2);
    margin-bottom: 18px;
  }
  .compare-card.highlight .compare-label { color: var(--teal-dark); }
  .compare-list { list-style: none; display: flex; flex-direction: column; gap: 14px; }
  .compare-list li {
    font-size: 14.5px;
    color: var(--muted);
    line-height: 1.55;
    padding-left: 18px;
    position: relative;
  }
  .compare-card.highlight .compare-list li { color: var(--ink); }
  .compare-list li::before {
    content: '—';
    position: absolute;
    left: 0;
    color: var(--muted-2);
  }
  .compare-card.highlight .compare-list li::before { content: '✓'; color: var(--teal); }
  @media (max-width: 860px) {
    .compare-grid { grid-template-columns: 1fr; }
  }

  /* ---------- TRUST STRIP ---------- */
  .trust {
    background: var(--deep-blue);
    color: var(--white);
  }
  .trust-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
  }
  .trust-item { display: flex; gap: 16px; }
  .trust-icon {
    width: 34px; height: 34px;
    flex-shrink: 0;
    border: 1px solid rgba(255,255,255,0.25);
    border-radius: 4px;
    display: flex; align-items: center; justify-content: center;
  }
  .trust-title { font-weight: 600; font-size: 15px; margin-bottom: 5px; }
  .trust-desc { font-size: 13.5px; color: rgba(255,255,255,0.68); line-height: 1.55; }
  @media (max-width: 860px) {
    .trust-grid { grid-template-columns: 1fr; gap: 28px; }
  }

  /* ---------- CTA ---------- */
  .cta-block { padding: 96px 0; text-align: center; }
  .cta-block h2 { max-width: 560px; margin: 0 auto 16px; }
  .cta-block .section-sub { max-width: 480px; margin-left: auto; margin-right: auto; }
  .cta-buttons { display: flex; justify-content: center; gap: 14px; margin-top: 32px; }

  /* ---------- CONTACT ---------- */
  .contact-block { padding: 96px 0; border-top: 1px solid var(--line); }
  .contact-grid {
    display: grid;
    grid-template-columns: 0.9fr 1.1fr;
    gap: 56px;
    align-items: start;
  }
  .contact-form {
    display: flex;
    flex-direction: column;
    gap: 14px;
    background: var(--slate-bg);
    border: 1px solid var(--line);
    border-radius: 6px;
    padding: 32px;
  }
  .form-label {
    font-size: 13px;
    font-weight: 600;
    color: var(--ink);
    margin-bottom: -8px;
  }
  .form-input {
    font-family: var(--body);
    font-size: 14.5px;
    padding: 11px 13px;
    border: 1px solid var(--line);
    border-radius: 3px;
    background: var(--white);
    color: var(--ink);
    width: 100%;
  }
  .form-input:focus {
    outline: none;
    border-color: var(--teal);
  }
  textarea.form-input { resize: vertical; }
  @media (max-width: 860px) {
    .contact-grid { grid-template-columns: 1fr; }
  }

  /* ---------- FOOTER ---------- */
  footer {
    border-top: 1px solid var(--line);
    padding: 44px 0;
  }  .footer-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
  }
  .footer-links { display: flex; gap: 26px; }
  .footer-links a { font-size: 13.5px; color: var(--muted); }
  .footer-legal { font-size: 12.5px; color: var(--muted-2); }

  ::selection { background: var(--teal); color: white; }
  :focus-visible { outline: 2px solid var(--teal); outline-offset: 2px; }