:root {
    --paper:      #F3F5EF;
    --paper-2:    #EAEEE5;
    --ink:        #0E1C17;
    --ink-soft:   #46554E;
    --rule:       #C7D4C4;
    --rule-faint: #DCE4D7;
    --spruce:     #1F4A3D;
    --spruce-lit: #2E6B57;
    /* darkened from #9A6B1E: that failed WCAG AA (4.25:1 on --paper, 3.97:1 on
       --paper-2) and brass carries small uppercase mono text. Now 5.9:1 / 5.5:1. */
    --brass:      #7E5615;
    --danger:     #8A2515;
    --field:      #FFFFFF;
    --shadow:     0 1px 0 var(--rule);
    --measure:    64ch;
  }
  @media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) {
      --paper:      #0C1512;
      --paper-2:    #101E19;
      --ink:        #E8EFE8;
      --ink-soft:   #9DAFA6;
      --rule:       #27392F;
      --rule-faint: #1B2A23;
      --spruce:     #7FC3A7;
      --spruce-lit: #A6DCC2;
      --brass:      #D6A44F;
      --danger:     #F09A8A;
      --field:      #0F1D18;
    }
  }
  :root[data-theme="dark"] {
    --paper:      #0C1512;
    --paper-2:    #101E19;
    --ink:        #E8EFE8;
    --ink-soft:   #9DAFA6;
    --rule:       #27392F;
    --rule-faint: #1B2A23;
    --spruce:     #7FC3A7;
    --spruce-lit: #A6DCC2;
    --brass:      #D6A44F;
    --danger:     #F09A8A;
    --field:      #0F1D18;
  }

  * { box-sizing: border-box; }

  /* the hidden attribute must win over any display rule below
     (form is display:grid, so `form.hidden = true` alone did nothing) */
  [hidden] { display: none !important; }

  body {
    margin: 0;
    background: var(--paper);
    color: var(--ink);
    font-family: "Karla", ui-sans-serif, system-ui, sans-serif;
    font-size: 17px;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
  }

  .wrap {
    max-width: 1080px;
    margin: 0 auto;
    padding-inline: 24px;
  }

  h1, h2, h3 {
    font-family: "Fraunces", Georgia, "Times New Roman", serif;
    font-weight: 600;
    line-height: 1.08;
    text-wrap: balance;
    margin: 0;
    letter-spacing: -0.015em;
  }

  .eyebrow {
    font-family: "IBM Plex Mono", ui-monospace, monospace;
    font-size: 12px;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--brass);
    margin: 0;
  }

  a { color: inherit; }
  :focus-visible { outline: 2px solid var(--brass); outline-offset: 3px; border-radius: 2px; }

  /* skip link — offscreen until focused by keyboard */
  .skip-link {
    position: absolute;
    left: 12px;
    top: -60px;
    z-index: 50;
    background: var(--spruce);
    color: var(--paper);
    font-family: "Karla", sans-serif;
    font-size: 15px;
    font-weight: 700;
    padding: 11px 18px;
    text-decoration: none;
    transition: top .12s ease;
  }
  .skip-link:focus { top: 12px; }

  .visually-hidden {
    position: absolute;
    width: 1px; height: 1px;
    margin: -1px; padding: 0;
    overflow: hidden;
    clip-path: inset(50%);
    white-space: nowrap;
    border: 0;
  }

  /* ---------- masthead ---------- */
  header.mast {
    border-bottom: 1px solid var(--rule);
    background: var(--paper);
  }
  .mast-inner {
    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
    gap: 12px 28px;
    padding-block: 20px;
  }
  .mark {
    font-family: "Fraunces", Georgia, serif;
    font-size: 21px;
    font-weight: 600;
    letter-spacing: -0.02em;
    margin-right: auto;
    text-decoration: none;
    color: var(--ink);
  }
  .mark span {
    display: block;
    font-family: "IBM Plex Mono", monospace;
    font-size: 10.5px;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--ink-soft);
    font-weight: 400;
    margin-top: 3px;
  }
  nav.mast-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 10px 22px;
    font-size: 15px;
  }
  /* labels must never break mid-phrase ("How it / works") when the row wraps */
  nav.mast-nav a { text-decoration: none; color: var(--ink-soft); white-space: nowrap; }
  nav.mast-nav a:hover { color: var(--spruce); }

  /* ---------- hero ---------- */
  .hero { padding-block: clamp(48px, 8vw, 88px) 0; }
  .hero-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr);
    gap: 48px;
    align-items: start;
  }
  .hero h1 {
    font-size: clamp(38px, 6.2vw, 62px);
    margin-block: 14px 20px;
  }
  .hero h1 em {
    font-style: italic;
    color: var(--spruce);
  }
  .lede {
    font-size: clamp(17px, 2vw, 19.5px);
    color: var(--ink-soft);
    max-width: 52ch;
    margin: 0;
  }
  .actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 30px;
  }
  .btn {
    font-family: "Karla", sans-serif;
    font-size: 15.5px;
    font-weight: 700;
    padding: 13px 24px;
    border: 1px solid var(--spruce);
    text-decoration: none;
    display: inline-block;
    transition: background .15s ease, color .15s ease;
    cursor: pointer;
  }
  .btn-solid { background: var(--spruce); color: var(--paper); }
  .btn-solid:hover { background: var(--spruce-lit); border-color: var(--spruce-lit); }
  .btn-line { background: transparent; color: var(--spruce); }
  .btn-line:hover { background: var(--paper-2); }
  .btn:disabled { opacity: .62; cursor: progress; }

  /* ledger panel */
  .ledger {
    border: 1px solid var(--rule);
    background: var(--paper-2);
    font-family: "IBM Plex Mono", monospace;
    font-size: 13px;
  }
  .ledger-head {
    padding: 11px 16px;
    border-bottom: 1px solid var(--rule);
    text-transform: uppercase;
    letter-spacing: 0.12em;
    font-size: 11px;
    color: var(--ink-soft);
    display: flex;
    justify-content: space-between;
    gap: 10px;
  }
  .ledger-row {
    display: flex;
    justify-content: space-between;
    gap: 14px;
    padding: 10px 16px;
    border-bottom: 1px solid var(--rule-faint);
    font-variant-numeric: tabular-nums;
  }
  .ledger-row:last-child { border-bottom: 0; }
  .ledger-row b { font-weight: 500; color: var(--ink); }
  .ledger-row span { color: var(--ink-soft); text-align: right; }
  .ledger-row.total {
    background: color-mix(in srgb, var(--spruce) 10%, transparent);
    border-top: 1px solid var(--rule);
  }
  .ledger-row.total b, .ledger-row.total span { color: var(--spruce); font-weight: 500; }

  /* ---------- section frame ---------- */
  section { padding-block: clamp(52px, 7vw, 84px); }
  .rule-top { border-top: 1px solid var(--rule); }
  .sec-head { max-width: var(--measure); margin-bottom: 40px; }
  .sec-head h2 { font-size: clamp(27px, 3.6vw, 36px); margin-block: 12px 14px; }
  .sec-head p { color: var(--ink-soft); margin: 0; }

  /* ---------- chart of accounts ---------- */
  .accounts { border-top: 1px solid var(--rule); }
  .acct {
    display: grid;
    grid-template-columns: 78px minmax(0, 1fr) minmax(0, 1.35fr);
    gap: 8px 28px;
    padding-block: 22px;
    border-bottom: 1px solid var(--rule-faint);
    align-items: baseline;
  }
  .acct-code {
    font-family: "IBM Plex Mono", monospace;
    font-size: 13px;
    color: var(--brass);
    font-variant-numeric: tabular-nums;
  }
  .acct h3 { font-size: 21px; }
  .acct p { margin: 0; color: var(--ink-soft); font-size: 16px; }

  /* ---------- process ---------- */
  .steps { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 32px; }
  .step-n {
    font-family: "IBM Plex Mono", monospace;
    font-size: 12px;
    letter-spacing: 0.12em;
    color: var(--brass);
    padding-bottom: 10px;
    border-bottom: 2px solid var(--spruce);
    display: block;
    margin-bottom: 14px;
  }
  .step h3 { font-size: 19px; margin-bottom: 8px; }
  .step p { margin: 0; color: var(--ink-soft); font-size: 16px; }

  /* ---------- fit ---------- */
  .fit { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0; border: 1px solid var(--rule); }
  .fit > div { padding: 30px; }
  .fit > div + div { border-left: 1px solid var(--rule); }
  .fit h3 { font-size: 20px; margin-block: 10px 10px; }
  .fit p { margin: 0; color: var(--ink-soft); font-size: 16px; }

  /* ---------- contact ---------- */
  .contact-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr);
    gap: 48px;
    align-items: start;
  }
  .contact-detail { font-size: 16px; }
  .contact-detail dt {
    font-family: "IBM Plex Mono", monospace;
    font-size: 11px;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--ink-soft);
    margin-top: 20px;
  }
  .contact-detail dd { margin: 4px 0 0; }
  .contact-detail a { color: var(--spruce); }

  form { display: grid; gap: 16px; }
  .field-row { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
  label {
    display: block;
    font-family: "IBM Plex Mono", monospace;
    font-size: 11px;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--ink-soft);
    margin-bottom: 6px;
  }
  input, select, textarea {
    width: 100%;
    font-family: "Karla", sans-serif;
    font-size: 16px;
    color: var(--ink);
    background: var(--field);
    border: 1px solid var(--rule);
    padding: 11px 13px;
    border-radius: 0;
  }
  textarea { resize: vertical; min-height: 104px; }
  input:focus, select:focus, textarea:focus { border-color: var(--spruce); }

  /* required marker + inline validation */
  .req {
    color: var(--brass);
    margin-left: 4px;
    font-weight: 700;
  }
  .opt {
    margin-left: 6px;
    letter-spacing: 0.08em;
    opacity: .75;
    text-transform: none;
  }
  /* space is reserved even when empty, so an error appearing on blur
     doesn't shift the submit button out from under the pointer */
  .err {
    display: block;
    min-height: 1.35em;
    font-family: "Karla", sans-serif;
    font-size: 14px;
    line-height: 1.35;
    letter-spacing: 0;
    text-transform: none;
    color: var(--danger);
    margin-top: 6px;
  }
  input[aria-invalid="true"],
  select[aria-invalid="true"],
  textarea[aria-invalid="true"] {
    border-color: var(--danger);
    border-width: 2px;
  }
  .form-note {
    font-family: "IBM Plex Mono", monospace;
    font-size: 11px;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--ink-soft);
    margin: 0;
  }
  .submit-note {
    margin: 12px 0 0;
    font-size: 14px;
    line-height: 1.5;
    color: var(--ink-soft);
    max-width: 46ch;
  }
  .submit-note a { color: var(--spruce); text-underline-offset: 3px; }

  .sent {
    border: 1px solid var(--spruce);
    background: color-mix(in srgb, var(--spruce) 10%, transparent);
    padding: 20px;
  }
  .sent p { margin: 0; }
  .sent p + p { margin-top: 10px; color: var(--ink-soft); font-size: 15px; }
  .sent a { color: var(--spruce); }
  .sent .btn { font-size: 14.5px; padding: 9px 16px; }

  /* ---------- footer ---------- */
  .foot-phone {
    display: inline-block;
    font-family: "Karla", sans-serif;
    font-size: 18px;
    font-weight: 700;
    letter-spacing: -0.01em;
    color: var(--spruce);
    text-decoration: none;
    margin-bottom: 6px;
  }
  .foot-phone:hover { text-decoration: underline; text-underline-offset: 3px; }

  footer {
    border-top: 1px solid var(--rule);
    padding-block: 28px 40px;
    font-size: 14px;
    color: var(--ink-soft);
    display: flex;
    flex-wrap: wrap;
    gap: 10px 24px;
    justify-content: space-between;
  }

  @media (max-width: 860px) {
    .hero-grid, .contact-grid { grid-template-columns: minmax(0, 1fr); gap: 36px; }
    .steps { grid-template-columns: minmax(0, 1fr); gap: 26px; }
    .fit { grid-template-columns: minmax(0, 1fr); }
    .fit > div + div { border-left: 0; border-top: 1px solid var(--rule); }
    .acct { grid-template-columns: 62px minmax(0, 1fr); }
    .acct p { grid-column: 2; }
  }
  @media (max-width: 640px) {
    /* stack the wordmark above the nav so the links get the full width
       and sit on a single tidy row instead of wrapping mid-label */
    .mast-inner { align-items: flex-start; gap: 14px; }
    .mark { margin-right: 0; }
    nav.mast-nav {
      width: 100%;
      justify-content: space-between;
      gap: 8px 14px;
      font-size: 14px;
    }
  }
  @media (max-width: 520px) {
    .field-row { grid-template-columns: minmax(0, 1fr); }
    nav.mast-nav { font-size: 13.5px; gap: 8px 10px; }
  }
  @media (prefers-reduced-motion: reduce) {
    * { transition: none !important; animation: none !important; }
  }

  /* ---------- multi-page additions ---------- */
  nav.mast-nav a[aria-current="page"] {
    color: var(--ink);
    box-shadow: inset 0 -2px 0 var(--brass);
  }

  .page-head { padding-block: clamp(40px, 6vw, 68px) 0; }
  .page-head h1 {
    font-size: clamp(34px, 5.2vw, 52px);
    margin-block: 14px 18px;
  }
  .page-head .lede { max-width: 58ch; }

  .teaser { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 28px; }
  .teaser-item { border-top: 2px solid var(--spruce); padding-top: 16px; }
  .teaser-item h3 { font-size: 19px; margin-bottom: 8px; }
  .teaser-item p { margin: 0; color: var(--ink-soft); font-size: 16px; }
  .more {
    margin-top: 34px;
    font-family: "IBM Plex Mono", monospace;
    font-size: 13px;
    letter-spacing: 0.06em;
  }
  .more a { color: var(--spruce); text-decoration-thickness: 1px; text-underline-offset: 4px; }

  .band {
    border: 1px solid var(--rule);
    background: var(--paper-2);
    padding: clamp(28px, 4vw, 44px);
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
  }
  .band h2 { font-size: clamp(24px, 3vw, 31px); max-width: 22ch; }
  .band p { margin: 10px 0 0; color: var(--ink-soft); max-width: 46ch; }

  .principles { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 34px 48px; }
  .principle { display: grid; grid-template-columns: 74px minmax(0, 1fr); gap: 20px; align-items: baseline; }
  .principle .acct-code { align-self: start; }
  .principle h3 { font-size: 19px; margin-bottom: 8px; }
  .principle p { margin: 0; color: var(--ink-soft); font-size: 16px; }

  /* ---------- about: headline figures ---------- */
  .stat-band {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    border: 1px solid var(--rule);
    background: var(--paper-2);
  }
  .stat {
    padding: clamp(22px, 3vw, 32px) clamp(16px, 2vw, 26px);
    border-left: 1px solid var(--rule);
  }
  .stat:first-child { border-left: 0; }
  .stat-n {
    display: block;
    font-family: "Fraunces", Georgia, serif;
    font-weight: 600;
    font-size: clamp(34px, 4.6vw, 50px);
    line-height: 1;
    letter-spacing: -0.03em;
    color: var(--spruce);
    font-variant-numeric: tabular-nums;
  }
  .stat-label {
    display: block;
    margin-top: 10px;
    font-family: "IBM Plex Mono", monospace;
    font-size: 11px;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--ink-soft);
    line-height: 1.5;
  }

  /* ---------- about: founder ---------- */
  .founder {
    display: grid;
    grid-template-columns: 96px minmax(0, 1fr);
    gap: 28px;
    align-items: start;
  }
  .monogram {
    width: 96px;
    height: 96px;
    display: grid;
    place-items: center;
    background: var(--spruce);
    color: var(--paper);
    font-family: "Fraunces", Georgia, serif;
    font-weight: 600;
    font-size: 36px;
    letter-spacing: 0.01em;
  }
  .founder-name {
    font-family: "Fraunces", Georgia, serif;
    font-size: clamp(23px, 3vw, 29px);
    font-weight: 600;
    letter-spacing: -0.015em;
    margin: 0;
  }
  .founder-role {
    font-family: "IBM Plex Mono", monospace;
    font-size: 11.5px;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--brass);
    margin: 8px 0 18px;
  }
  .founder p { color: var(--ink-soft); max-width: 62ch; margin: 0 0 14px; }
  .founder p:last-child { margin-bottom: 0; }
  .pull {
    border-left: 3px solid var(--spruce);
    padding-left: 20px;
    margin: 26px 0 0;
    font-family: "Fraunces", Georgia, serif;
    font-size: clamp(19px, 2.4vw, 23px);
    line-height: 1.35;
    color: var(--ink);
    max-width: 40ch;
  }

  /* ---------- about: industry chips ---------- */
  .chip-group + .chip-group { margin-top: 30px; }
  .chip-group > .eyebrow { margin-bottom: 14px; }
  .chips { display: flex; flex-wrap: wrap; gap: 10px; list-style: none; margin: 0; padding: 0; }
  .chip {
    border: 1px solid var(--rule);
    background: var(--paper-2);
    padding: 8px 15px;
    font-size: 14.5px;
    color: var(--ink);
  }
  .chip.is-lead {
    border-color: var(--spruce);
    background: color-mix(in srgb, var(--spruce) 10%, transparent);
    color: var(--spruce);
    font-weight: 700;
  }

  @media (max-width: 860px) {
    .stat-band { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .stat:nth-child(3) { border-left: 0; }
    .stat:nth-child(n+3) { border-top: 1px solid var(--rule); }
  }
  @media (max-width: 430px) {
    .founder { grid-template-columns: minmax(0, 1fr); gap: 20px; }
  }

  .fill {
    background: color-mix(in srgb, var(--brass) 22%, transparent);
    box-shadow: 0 0 0 1px color-mix(in srgb, var(--brass) 45%, transparent);
    padding: 0 4px;
    font-style: italic;
  }
  .fill-note {
    border-left: 2px solid var(--brass);
    padding: 4px 0 4px 16px;
    margin-top: 28px;
    font-size: 15px;
    color: var(--ink-soft);
  }

  .faq { border-top: 1px solid var(--rule); }
  .faq-item { border-bottom: 1px solid var(--rule-faint); padding-block: 22px; }
  .faq-item h3 { font-size: 18px; margin-bottom: 8px; }
  .faq-item p { margin: 0; color: var(--ink-soft); font-size: 16px; max-width: 70ch; }

  @media (max-width: 860px) {
    .teaser { grid-template-columns: minmax(0, 1fr); gap: 22px; }
    .principles { grid-template-columns: minmax(0, 1fr); }
  }