:root {
    --ground: #EDE6D3;
    --ground-raised: #F5F0E2;
    --ink: #1F2A1D;
    --ink-soft: #47543F;
    --forest: #2F4A2B;
    --forest-strong: #1F3A1C;
    --bark: #6B4226;
    --hazard: #E8590C;
    --hazard-ink: #FFF6EE;
    --moss-line: #8A9A72;
    --moss-line-soft: rgba(138, 154, 114, 0.35);
    --card-border: rgba(31, 42, 29, 0.14);
    --shadow: rgba(31, 42, 29, 0.12);
  }

  @media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) {
      --ground: #141C11;
      --ground-raised: #1B2617;
      --ink: #EAE3CE;
      --ink-soft: #B8BFA9;
      --forest: #7EA26A;
      --forest-strong: #9CC286;
      --bark: #C79768;
      --hazard: #FF7A33;
      --hazard-ink: #1B0F08;
      --moss-line: #4A5A40;
      --moss-line-soft: rgba(74, 90, 64, 0.4);
      --card-border: rgba(234, 227, 206, 0.14);
      --shadow: rgba(0, 0, 0, 0.4);
    }
  }

  :root[data-theme="dark"] {
    --ground: #141C11;
    --ground-raised: #1B2617;
    --ink: #EAE3CE;
    --ink-soft: #B8BFA9;
    --forest: #7EA26A;
    --forest-strong: #9CC286;
    --bark: #C79768;
    --hazard: #FF7A33;
    --hazard-ink: #1B0F08;
    --moss-line: #4A5A40;
    --moss-line-soft: rgba(74, 90, 64, 0.4);
    --card-border: rgba(234, 227, 206, 0.14);
    --shadow: rgba(0, 0, 0, 0.4);
  }

  * { box-sizing: border-box; }
  html { scroll-behavior: smooth; }

  body {
    margin: 0;
    background:
      repeating-linear-gradient(0deg, var(--moss-line-soft) 0px, transparent 1px, transparent 28px, var(--moss-line-soft) 29px),
      repeating-linear-gradient(90deg, var(--moss-line-soft) 0px, transparent 1px, transparent 28px, var(--moss-line-soft) 29px),
      var(--ground);
    background-size: 28px 28px, 28px 28px, auto;
    color: var(--ink);
    font-family: 'Archivo', 'Helvetica Neue', Arial, sans-serif;
    -webkit-font-smoothing: antialiased;
    line-height: 1.55;
  }

  .display {
    font-family: 'Big Shoulders', 'Archivo', sans-serif;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.01em;
    text-wrap: balance;
    line-height: 0.92;
  }

  .mono {
    font-family: 'IBM Plex Mono', ui-monospace, SFMono-Regular, monospace;
  }

  .eyebrow {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 0.78rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--forest);
    display: flex;
    align-items: center;
    gap: 0.6em;
    font-weight: 500;
  }
  .eyebrow::before {
    content: "";
    width: 9px;
    height: 9px;
    border-radius: 50%;
    background: var(--hazard);
    flex: none;
  }

  a { color: inherit; text-decoration: none; }
  a:focus-visible, button:focus-visible, .navlink:focus-visible {
    outline: 2px solid var(--hazard);
    outline-offset: 3px;
  }

  .wrap {
    max-width: 1080px;
    margin: 0 auto;
    padding: 0 clamp(1.25rem, 4vw, 2.5rem);
  }

  /* ---- NAV ---- */
  header.sitenav {
    position: sticky;
    top: 0;
    z-index: 50;
    background: color-mix(in srgb, var(--ground) 88%, transparent);
    backdrop-filter: blur(6px);
    border-bottom: 1px solid var(--card-border);
  }
  .navrow {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 0.85rem clamp(1.25rem, 4vw, 2.5rem);
    max-width: 1080px;
    margin: 0 auto;
  }
  .logotype {
    display: flex;
    flex-direction: column;
    line-height: 0.86;
    cursor: pointer;
    background: none;
    border: none;
    padding: 0;
    text-align: left;
    color: var(--ink);
    text-decoration: none;
  }
  .logotype .l1 {
    font-family: 'Big Shoulders', sans-serif;
    font-weight: 800;
    font-size: 1.5rem;
    text-transform: uppercase;
    letter-spacing: 0.01em;
  }
  .logotype .l2 {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 0.62rem;
    letter-spacing: 0.24em;
    color: var(--hazard);
    margin-top: 0.28em;
  }
  nav.navlinks {
    display: flex;
    gap: clamp(0.9rem, 2.5vw, 1.8rem);
    font-family: 'IBM Plex Mono', monospace;
    font-size: 0.82rem;
    letter-spacing: 0.06em;
    text-transform: uppercase;
  }
  .navlink {
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.35em 0;
    color: var(--ink-soft);
    position: relative;
    font: inherit;
    letter-spacing: inherit;
    text-decoration: none;
    display: inline-block;
  }
  .navlink::after {
    content: "";
    position: absolute;
    left: 0; right: 0; bottom: -1px;
    height: 2px;
    background: var(--hazard);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.2s ease;
  }
  .navlink:hover { color: var(--ink); }
  .navlink[aria-current="page"] {
    color: var(--ink);
    font-weight: 600;
  }
  .navlink[aria-current="page"]::after { transform: scaleX(1); }

  /* ---- BUTTONS ---- */
  .btn {
    display: inline-flex;
    align-items: center;
    gap: 0.6em;
    font-family: 'IBM Plex Mono', monospace;
    font-size: 0.84rem;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    text-decoration: none;
    padding: 0.85em 1.4em;
    border-radius: 3px;
    border: 1.5px solid var(--ink);
    cursor: pointer;
    transition: transform 0.15s ease, background 0.15s ease, color 0.15s ease;
  }
  .btn-solid {
    background: var(--hazard);
    border-color: var(--hazard);
    color: var(--hazard-ink);
    font-weight: 600;
  }
  .btn-solid:hover { transform: translateY(-2px); }
  .btn-ghost {
    background: transparent;
    color: var(--ink);
  }
  .btn-ghost:hover { background: var(--card-border); }

  /* ---- PAGES ---- */
  .page { display: none; }
  .page.active { display: block; animation: fadeIn 0.35s ease; }
  @keyframes fadeIn { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }
  @media (prefers-reduced-motion: reduce) {
    .page.active { animation: none; }
    .btn-solid:hover { transform: none; }
  }

  section { padding: clamp(3rem, 7vw, 5.5rem) 0; }
  section + section { border-top: 1px solid var(--card-border); }

  /* ---- HERO ---- */
  .hero {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: clamp(2rem, 5vw, 3.5rem);
    align-items: center;
    padding-top: clamp(2.5rem, 6vw, 4rem);
  }
  @media (max-width: 860px) {
    .hero { grid-template-columns: 1fr; }
  }
  .hero h1 {
    font-size: clamp(2.6rem, 6.2vw, 4.6rem);
    margin: 0.4em 0 0.35em;
  }
  .hero h1 .hazard-word { color: var(--hazard); }
  .hero p.lede {
    font-size: 1.08rem;
    color: var(--ink-soft);
    max-width: 46ch;
    margin: 0 0 1.8em;
  }
  .hero .cta-row { display: flex; gap: 0.9rem; flex-wrap: wrap; }

  .diagram-card {
    background: var(--ground-raised);
    border: 1px solid var(--card-border);
    border-radius: 6px;
    padding: 1.4rem 1.4rem 1.2rem;
    box-shadow: 0 12px 30px -18px var(--shadow);
  }
  .diagram-card .cap {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 0.72rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--ink-soft);
    display: flex;
    justify-content: space-between;
    margin-bottom: 0.8rem;
  }
  .stocking-line {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 0.5em;
    margin-top: 0.7rem;
    padding-top: 0.7rem;
    border-top: 1px dashed var(--card-border);
    font-size: 0.9rem;
    color: var(--ink-soft);
  }
  .stocking-line .arrow { color: var(--hazard); }
  .stocking-line .hi { color: var(--hazard); font-weight: 600; font-size: 1.05em; }
  .stocking-line .unit { letter-spacing: 0.06em; text-transform: uppercase; font-size: 0.75em; margin-left: 0.15em; }

  .invest-grid {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: clamp(1rem, 3vw, 2rem);
    align-items: center;
  }
  @media (max-width: 760px) {
    .invest-grid { grid-template-columns: 1fr; }
    .invest-arrow { transform: rotate(90deg); margin: 0 auto; }
  }
  .invest-panel { padding: 1.3rem 1.3rem 1.1rem; }
  .invest-arrow {
    font-family: 'Big Shoulders', sans-serif;
    font-weight: 700;
    font-size: 2.1rem;
    color: var(--hazard);
    text-align: center;
  }
  .invest-note { margin: 0.9rem 0 0; color: var(--ink-soft); font-size: 0.86rem; }
  .invest-footnote {
    margin-top: 1.6rem;
    color: var(--ink-soft);
    font-size: 0.86rem;
    font-family: 'IBM Plex Mono', monospace;
    max-width: 68ch;
  }

  .regime-row {
    display: grid;
    grid-template-columns: 1fr auto 1fr auto 1fr;
    gap: clamp(0.8rem, 2vw, 1.2rem);
    margin-top: 0.5rem;
  }
  @media (max-width: 900px) {
    .regime-row { grid-template-columns: 1fr; }
    .regime-arrow { transform: rotate(90deg); margin: -0.3rem auto; }
  }
  .regime-step {
    background: var(--ground-raised);
    border: 1px solid var(--card-border);
    border-radius: 6px;
    padding: 1.5rem 1.4rem;
  }
  .regime-step .cap {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 0.68rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--ink-soft);
    margin-bottom: 0.7rem;
  }
  .regime-step .figure {
    font-size: 2.4rem;
    color: var(--hazard);
    margin-bottom: 0.6rem;
  }
  .regime-step .figure .unit {
    font-size: 0.38em;
    color: var(--ink-soft);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    margin-left: 0.25em;
    font-family: 'IBM Plex Mono', monospace;
    font-weight: 500;
  }
  .regime-step p { margin: 0; color: var(--ink-soft); font-size: 0.9rem; }
  .regime-arrow {
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: 'Big Shoulders', sans-serif;
    font-weight: 700;
    font-size: 1.7rem;
    color: var(--hazard);
  }
  .regime-note { margin-top: 1.6rem; color: var(--ink-soft); font-size: 0.92rem; max-width: 72ch; }

  .legend { display: flex; gap: 1.2rem; margin-top: 0.9rem; font-family: 'IBM Plex Mono', monospace; font-size: 0.72rem; color: var(--ink-soft); }
  .legend span { display: inline-flex; align-items: center; gap: 0.5em; }
  .dot { width: 9px; height: 9px; border-radius: 50%; display: inline-block; }
  .dot.retain { background: var(--forest); }
  .dot.mark { background: var(--hazard); }

  /* ---- TRUST STRIP ---- */
  .trust { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.5rem 2rem; }
  @media (max-width: 760px) { .trust { grid-template-columns: 1fr; } }
  .trust-item { display: flex; gap: 0.9rem; align-items: flex-start; }
  .trust-item .mk { font-family: 'IBM Plex Mono'; color: var(--hazard); font-weight: 600; font-size: 0.9rem; flex: none; padding-top: 0.15em; }
  .trust-item p { margin: 0; color: var(--ink-soft); font-size: 0.95rem; }

  /* ---- HEADINGS ---- */
  h2.section-title {
    font-size: clamp(2rem, 4.4vw, 2.9rem);
    margin: 0.35em 0 0.6em;
  }
  .section-head { margin-bottom: clamp(2rem, 4vw, 3rem); }
  .section-head p.deck { color: var(--ink-soft); max-width: 60ch; font-size: 1.02rem; margin: 0; }

  /* ---- SERVICE CARDS ---- */
  .services-grid { display: grid; grid-template-columns: 1fr; gap: 1.1rem; }
  .qc-note {
    margin-top: 1.6rem;
    padding: 1.4rem 1.6rem;
    background: var(--ground-raised);
    border: 1px solid var(--card-border);
    border-left: 4px solid var(--hazard);
    border-radius: 4px;
  }
  .qc-note p.eyebrow { margin: 0 0 0.5rem; }
  .qc-note p.body { margin: 0; color: var(--ink-soft); font-size: 0.95rem; }
  .svc {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 1.2rem;
    padding: 1.6rem 1.7rem;
    background: var(--ground-raised);
    border: 1px solid var(--card-border);
    border-left: 4px solid var(--bark);
    border-radius: 4px;
  }
  .svc.flagship { border-left-color: var(--hazard); }
  .svc .num { font-family: 'Big Shoulders', sans-serif; font-weight: 700; font-size: 2.1rem; color: var(--ink-soft); opacity: 0.55; line-height: 1; }
  .svc.flagship .num { color: var(--hazard); opacity: 1; }
  .svc h3 { margin: 0 0 0.4em; font-size: 1.25rem; font-family: 'Archivo'; font-weight: 700; display: flex; align-items: center; gap: 0.7em; flex-wrap: wrap; }
  .tag {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 0.66rem;
    letter-spacing: 0.1em;
    background: var(--hazard);
    color: var(--hazard-ink);
    padding: 0.25em 0.6em;
    border-radius: 2px;
    font-weight: 600;
  }
  .svc p { margin: 0; color: var(--ink-soft); }

  /* ---- ABOUT / STATS ---- */
  .about-grid { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: clamp(2rem, 5vw, 4rem); align-items: start; }
  @media (max-width: 860px) { .about-grid { grid-template-columns: 1fr; } }
  .about-grid p.body-copy { color: var(--ink-soft); font-size: 1.03rem; max-width: 54ch; }

  .stats-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--card-border); border: 1px solid var(--card-border); margin-top: 2rem; }
  .stat { background: var(--ground-raised); padding: 1.3rem 1rem; text-align: center; }
  .stat .n { font-family: 'Big Shoulders', sans-serif; font-weight: 800; font-size: 2.6rem; color: var(--hazard); line-height: 1; }
  .stat .l { font-family: 'IBM Plex Mono', monospace; font-size: 0.68rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--ink-soft); margin-top: 0.5em; }

  .coverage-card {
    background: var(--ground-raised);
    border: 1px solid var(--card-border);
    border-radius: 6px;
    padding: 1.6rem;
  }
  .coverage-card .cap { font-family: 'IBM Plex Mono', monospace; font-size: 0.72rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-soft); margin-bottom: 1rem; }
  .coverage-list { list-style: none; margin: 1.1rem 0 0; padding: 0; display: flex; flex-direction: column; gap: 0.55rem; font-size: 0.95rem; }
  .coverage-list li { display: flex; gap: 0.7em; align-items: baseline; }
  .coverage-list li .m { font-family: 'IBM Plex Mono', monospace; color: var(--hazard); font-size: 0.78rem; }

  /* ---- CONTACT ---- */
  .contact-panel {
    background: var(--forest-strong);
    color: var(--hazard-ink);
    border-radius: 8px;
    padding: clamp(2.2rem, 5vw, 3.5rem);
    container-type: inline-size;
  }
  @media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) .contact-panel { color: #0F160D; }
  }
  :root[data-theme="dark"] .contact-panel { color: #0F160D; }
  .contact-panel h2 {
    margin: 0.2em 0 0.4em;
    font-size: clamp(1.1rem, 3.4vw, 1.85rem);
    color: inherit;
    overflow-wrap: anywhere;
    word-break: break-word;
  }
  .email-seg { white-space: nowrap; }
  .email-break { display: none; }
  @container (max-width: 480px) { .email-break { display: inline; } }
  .contact-panel p { color: inherit; opacity: 0.86; max-width: 42ch; margin: 0 0 1.4em; overflow-wrap: anywhere; }
  .contact-panel .email-btn {
    display: inline-flex;
    flex-direction: column;
    gap: 0.3em;
    background: var(--hazard);
    color: var(--hazard-ink);
    padding: 1.1em 1.5em;
    border-radius: 5px;
    text-decoration: none;
    font-family: 'IBM Plex Mono', monospace;
  }
  .contact-panel .email-btn .k { font-size: 0.66rem; letter-spacing: 0.12em; text-transform: uppercase; opacity: 0.85; }
  .contact-panel .email-btn .v { font-size: 1.15rem; font-weight: 600; word-break: break-all; }
  .contact-side {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 0.88rem;
    line-height: 1.6;
    opacity: 0.9;
    margin-top: clamp(1.8rem, 4vw, 2.4rem);
    padding-top: clamp(1.4rem, 3vw, 1.8rem);
    border-top: 1px dashed rgba(255,255,255,0.25);
  }
  @media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) .contact-side { border-top-color: rgba(15,22,13,0.25); }
  }
  :root[data-theme="dark"] .contact-side { border-top-color: rgba(15,22,13,0.25); }
  .contact-side .row { display: flex; justify-content: space-between; align-items: baseline; gap: 1.2rem; border-bottom: 1px dashed rgba(255,255,255,0.25); padding: 0.6em 0; }
  .contact-side .row span:last-child { text-align: right; }
  @media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) .contact-side .row { border-bottom-color: rgba(15,22,13,0.25); }
  }
  :root[data-theme="dark"] .contact-side .row { border-bottom-color: rgba(15,22,13,0.25); }


  /* ---- CERTIFICATION ---- */
  .cert-card {
    margin-top: clamp(1.6rem, 3vw, 2.2rem);
    padding: 1.6rem 1.8rem;
    background: var(--ground-raised);
    border: 1px solid var(--card-border);
    border-radius: 6px;
    display: flex;
    gap: 1.6rem;
    align-items: center;
  }
  .cert-card .cert-badge { width: 108px; height: auto; flex: none; }
  .cert-card h3 { margin: 0 0 0.4em; font-family: 'Archivo'; font-size: 1.12rem; font-weight: 700; }
  .cert-card p.cert-copy { margin: 0; color: var(--ink-soft); font-size: 0.94rem; }
  @media (max-width: 560px) {
    .cert-card { flex-direction: column; align-items: flex-start; text-align: left; }
  }

  /* ---- FOOTER ---- */
  footer {
    padding: 2.5rem 0 3rem;
    font-family: 'IBM Plex Mono', monospace;
    font-size: 0.78rem;
    color: var(--ink-soft);
  }
  .footer-row {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 1rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--card-border);
  }
  .footer-services { display: flex; gap: 1.2rem; flex-wrap: wrap; }