@layer reset, base, components, utilities;

@layer reset {
  *, *::before, *::after { box-sizing: border-box; }
  html { scroll-behavior: smooth; }
  body, h1, h2, h3, p, ol, dl, dd, blockquote { margin: 0; }
  img, svg { display: block; max-width: 100%; }
  button, a, summary { font: inherit; }
}

@layer base {
  :root {
    --df-navy: #003366;
    --df-navy-dark: #002544;
    --df-teal: #00877e;
    --df-orange: #ff6f00;
    --df-ink: #333333;
    --df-muted: #5b6570;
    --df-paper: #ffffff;
    --df-mist: #f2f7f7;
    --df-line: #c7d8db;
    --df-shadow: 0 18px 50px rgb(0 51 102 / 10%);
    --df-radius: 1rem;
    --df-serif: Georgia, "Times New Roman", serif;
    --df-sans: "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  }

  html { color-scheme: light; scroll-padding-top: 6rem; }
  body {
    background: var(--df-paper);
    color: var(--df-ink);
    font-family: var(--df-sans);
    font-size: 1rem;
    line-height: 1.65;
    text-rendering: optimizeLegibility;
  }
  h1, h2, h3 {
    color: var(--df-navy);
    font-family: var(--df-serif);
    font-weight: 700;
    line-height: 1.08;
    text-wrap: balance;
  }
  h1 { font-size: clamp(2.65rem, 7vw, 5.7rem); letter-spacing: -.05em; max-width: 12ch; }
  h2 { font-size: clamp(2rem, 4vw, 3.65rem); letter-spacing: -.035em; }
  h3 { font-size: clamp(1.25rem, 2vw, 1.55rem); }
  p { max-width: 72ch; }
  a { color: var(--df-navy); text-decoration-color: var(--df-teal); text-decoration-thickness: .12em; text-underline-offset: .2em; }
  a:hover { text-decoration-color: var(--df-orange); }
  a:focus-visible, button:focus-visible, summary:focus-visible {
    outline: .2rem solid var(--df-orange);
    outline-offset: .25rem;
    border-radius: .2rem;
  }
  section { padding-block: clamp(4.5rem, 9vw, 8rem); }
}

@layer components {
  .df-wrap { width: min(73.75rem, calc(100% - 2.5rem)); margin-inline: auto; }
  .df-skip-link { position: fixed; z-index: 100; top: .75rem; left: .75rem; transform: translateY(-200%); background: var(--df-paper); padding: .75rem 1rem; }
  .df-skip-link:focus { transform: none; }
  .df-site-header { position: sticky; z-index: 20; top: 0; border-bottom: 1px solid rgb(199 216 219 / 70%); background: rgb(255 255 255 / 94%); backdrop-filter: blur(.75rem); }
  .df-header-inner { min-height: 5rem; display: flex; align-items: center; justify-content: space-between; gap: 2rem; }
  .df-brand { display: inline-flex; align-items: baseline; gap: .55rem; color: var(--df-navy); font-weight: 800; text-decoration: none; letter-spacing: -.02em; }
  .df-brand small { color: var(--df-muted); font-size: .68rem; letter-spacing: .14em; text-transform: uppercase; }
  .df-site-header nav, .df-footer nav { display: flex; align-items: center; gap: clamp(.8rem, 2.2vw, 1.75rem); }
  .df-site-header nav a, .df-footer nav a { font-size: .9rem; font-weight: 700; text-decoration: none; }

  .df-hero { padding-top: clamp(4rem, 8vw, 7.5rem); background: linear-gradient(145deg, #fff 0 62%, var(--df-mist) 62%); }
  .df-hero-grid { display: grid; grid-template-columns: minmax(20rem, .82fr) minmax(32rem, 1.18fr); gap: clamp(2.5rem, 5vw, 4.75rem); align-items: center; }
  .df-eyebrow, .df-kicker, .df-card-label { color: var(--df-teal); font-size: .75rem; font-weight: 800; letter-spacing: .14em; text-transform: uppercase; }
  .df-eyebrow { margin-bottom: 1.25rem; }
  .df-hero h1 em { color: var(--df-orange); font-style: normal; }
  .df-lead { color: var(--df-muted); font-size: clamp(1.08rem, 2vw, 1.28rem); line-height: 1.6; }
  .df-hero .df-lead { margin-top: 1.75rem; }
  .df-actions { display: flex; flex-wrap: wrap; gap: .8rem; margin-top: 2rem; }
  .df-button { min-height: 2.9rem; display: inline-flex; align-items: center; justify-content: center; border: 2px solid var(--df-navy); border-radius: 999px; padding: .72rem 1.25rem; font-weight: 800; line-height: 1.2; text-decoration: none; }
  .df-button-primary { background: var(--df-navy); color: #fff; }
  .df-button-primary:hover { background: var(--df-navy-dark); }
  .df-button-secondary { background: #fff; color: var(--df-navy); }
  .df-hiring-route { margin-top: 1.5rem; }
  .df-capacity { margin-top: 1rem; color: var(--df-muted); font-weight: 700; }
  .df-capacity span { width: .65rem; height: .65rem; display: inline-block; margin-right: .45rem; border-radius: 50%; background: var(--df-teal); }

  .df-brief-card { position: relative; overflow: hidden; padding: clamp(1.4rem, 2.5vw, 2rem); border: 1px solid var(--df-line); border-radius: var(--df-radius); background: var(--df-navy); color: #fff; box-shadow: var(--df-shadow); }
  .df-brief-card::before { position: absolute; top: 0; right: 2rem; width: 3.5rem; height: .3rem; content: ""; background: var(--df-orange); }
  .df-brief-card .df-kicker { color: #84e1d9; }
  .df-brief-card h2 { max-width: 18ch; margin-top: .35rem; color: #fff; font-size: clamp(1.55rem, 2.4vw, 2rem); }
  .df-brief-steps { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); margin: 1.2rem 0 1rem; padding: 0; border-top: 1px solid rgb(255 255 255 / 22%); border-left: 1px solid rgb(255 255 255 / 22%); list-style: none; counter-reset: brief-step; }
  .df-brief-steps li { position: relative; display: grid; grid-template-columns: 1.6rem 1fr; grid-template-rows: auto 1fr; column-gap: .55rem; padding: .75rem .8rem .8rem; border-right: 1px solid rgb(255 255 255 / 22%); border-bottom: 1px solid rgb(255 255 255 / 22%); counter-increment: brief-step; }
  .df-brief-steps li::before { grid-row: 1 / 3; content: "0" counter(brief-step); color: #84e1d9; font-size: .67rem; font-weight: 800; letter-spacing: .08em; line-height: 1.75; }
  .df-brief-steps strong { color: #fff; font-family: var(--df-serif); font-size: .98rem; line-height: 1.22; }
  .df-brief-steps span { margin-top: .18rem; color: #c9dce6; font-size: .78rem; line-height: 1.32; }
  .df-brief-card blockquote { position: relative; padding: .1rem 0 .1rem 1rem; border-left: .2rem solid var(--df-orange); color: #e7f2f5; font-family: var(--df-serif); font-size: .9rem; line-height: 1.4; }

  .df-section-heading { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(17rem, .8fr); gap: 2rem; align-items: end; margin-bottom: clamp(2.5rem, 5vw, 4rem); }
  .df-section-heading > p { color: var(--df-muted); }
  .df-outcomes { background: #fff; }
  .df-outcome-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.2rem; }
  .df-outcome-card { position: relative; padding: clamp(1.5rem, 3vw, 2.2rem); border: 1px solid var(--df-line); border-radius: var(--df-radius); background: #fff; box-shadow: 0 8px 24px rgb(0 51 102 / 6%); }
  .df-outcome-card::before { position: absolute; top: 0; left: 2rem; width: 4rem; height: .28rem; content: ""; background: var(--df-teal); }
  .df-card-label { margin-bottom: 1rem; }
  .df-card-label span { color: var(--df-muted); letter-spacing: .02em; text-transform: none; }
  .df-outcome-card h3 strong { color: var(--df-orange); font-size: 1.35em; }
  .df-outcome-card > p:not(.df-card-label) { margin-top: 1rem; }
  .df-qualification { padding-top: 1rem; border-top: 1px solid var(--df-line); color: var(--df-muted); font-size: .88rem; }
  .df-source-note { margin: 1.5rem 0 0; color: var(--df-muted); font-size: .9rem; }

  .df-contribution { background: var(--df-navy); color: #fff; }
  .df-contribution h2, .df-contribution h3 { color: #fff; }
  .df-contribution .df-section-heading > p { color: #c9dce6; }
  .df-contribution .df-eyebrow { color: #84e1d9; }
  .df-contribution-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; padding: 0; list-style: none; background: rgb(255 255 255 / 20%); }
  .df-contribution-grid li {
    --df-step-surface: #003366;
    --df-step-text: #fff;
    --df-step-muted: #dce9ef;
    --df-step-accent: #84e1d9;
    --df-step-line: rgb(255 255 255 / 20%);
    min-width: 0;
    padding: 2rem 1.5rem;
    border-top: .28rem solid var(--df-step-accent);
    background: var(--df-step-surface);
    color: var(--df-step-text);
  }
  .df-contribution-grid li:nth-child(2) { --df-step-surface: #164b69; }
  .df-contribution-grid li:nth-child(3) { --df-step-surface: #35677a; }
  .df-contribution-grid li:nth-child(4) {
    --df-step-surface: #8fb6bf;
    --df-step-text: #002f55;
    --df-step-muted: #173e53;
    --df-step-accent: #005b63;
    --df-step-line: rgb(0 51 102 / 24%);
  }
  .df-contribution-grid li:nth-child(5) {
    --df-step-surface: #c7dcdf;
    --df-step-text: #002f55;
    --df-step-muted: #25485b;
    --df-step-accent: #005b63;
    --df-step-line: rgb(0 51 102 / 20%);
  }
  .df-contribution-grid li:nth-child(6) {
    --df-step-surface: #edf4f3;
    --df-step-text: #002f55;
    --df-step-muted: #365464;
    --df-step-accent: #005b63;
    --df-step-line: rgb(0 51 102 / 18%);
  }
  .df-contribution-grid > li > span { color: var(--df-step-accent); font-size: .8rem; font-weight: 800; letter-spacing: .14em; }
  .df-contribution-grid h3 { margin: 1.25rem 0 1rem; color: var(--df-step-text); }
  .df-contribution-grid p { color: var(--df-step-muted); }
  .df-move-work { min-height: 9rem; }
  .df-move-copy { position: relative; min-height: 9rem; }
  .df-move-copy .df-move-work { min-height: 0; }
  .df-move-visual { position: absolute; inset-inline: 0; bottom: 0; height: 4rem; margin: 0; }
  .df-move-visual img { width: 100%; height: 100%; display: block; object-fit: contain; }
  .df-move-meta { display: grid; gap: .65rem; margin-top: 1.25rem; }
  .df-move-meta div { padding-top: .65rem; border-top: 1px solid var(--df-step-line); }
  .df-move-meta dt { color: var(--df-step-accent); font-size: .7rem; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; }
  .df-move-meta dd { margin-top: .15rem; color: var(--df-step-text); font-size: .88rem; line-height: 1.45; }

  .df-offers { background: var(--df-mist); }
  .df-work-modes { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1px; margin-bottom: clamp(3rem, 6vw, 5rem); background: var(--df-line); border: 1px solid var(--df-line); }
  .df-work-mode { padding: clamp(1.4rem, 3vw, 2rem); background: #fff; }
  .df-work-mode-primary { position: relative; grid-column: 1 / -1; display: grid; grid-template-columns: minmax(9rem, .35fr) minmax(16rem, .65fr); gap: .4rem 2rem; align-items: start; overflow: hidden; border-left: .35rem solid var(--df-orange); }
  .df-employment-identity { position: relative; grid-row: 1 / 4; min-width: 0; min-height: 0; align-self: stretch; }
  .df-employment-portrait { position: absolute; inset-inline-start: 50%; bottom: 0; width: 6.75rem; height: auto; max-height: calc(100% - 1.4rem); transform: translateX(-50%); filter: drop-shadow(0 .35rem .6rem rgb(0 51 102 / 16%)); pointer-events: none; }
  .df-work-mode h3 { margin-bottom: .6rem; }
  .df-work-mode a { display: inline-block; min-height: 2.75rem; margin-top: 1rem; font-weight: 800; }
  .df-work-mode-actions { display: flex; flex-wrap: wrap; gap: 0 1.5rem; }
  .df-engagement-heading { max-width: 52rem; margin-bottom: 2rem; }
  .df-engagement-heading h3 { margin-bottom: .75rem; font-size: clamp(1.55rem, 3vw, 2.25rem); }
  .df-engagement-heading > p:last-child { color: var(--df-muted); }

  .df-offer-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.2rem; align-items: start; }
  .df-offer-card { padding: clamp(1.5rem, 3vw, 2rem); border-top: .35rem solid var(--df-teal); border-radius: .25rem .25rem var(--df-radius) var(--df-radius); background: #fff; box-shadow: var(--df-shadow); }
  .df-offer-card h3 { margin-bottom: 1rem; font-size: 1.85rem; }
  .df-offer-fit { min-height: 5.5rem; color: var(--df-muted); }
  .df-offer-card dl { margin-top: 1.5rem; }
  .df-offer-card dl div { padding: .9rem 0; border-top: 1px solid var(--df-line); }
  .df-offer-card dt { color: var(--df-navy); font-weight: 800; }
  .df-offer-card dd { margin-top: .25rem; }
  .df-offer-card details { margin: 1rem 0 1.25rem; }
  .df-offer-card summary { min-height: 2.75rem; cursor: pointer; color: var(--df-navy); font-weight: 800; }
  .df-offer-card details p { padding: .8rem 0; color: var(--df-muted); font-size: .92rem; }
  .df-offer-boundary { margin: 1.25rem 0; padding: 1rem; border-left: .3rem solid var(--df-orange); background: var(--df-mist); color: var(--df-ink); font-size: .92rem; }
  .df-text-link { display: inline-block; font-weight: 800; }
  .df-fit-note { margin: 2rem auto 0; padding: 1.25rem; border-left: .3rem solid var(--df-orange); background: #fff; }

  .df-exercise { background: #fff; }
  .df-exercise-grid { display: grid; grid-template-columns: minmax(0, .8fr) minmax(20rem, 1.2fr); gap: clamp(2.5rem, 7vw, 6rem); align-items: start; }
  .df-exercise .df-lead { margin: 1.25rem 0; color: var(--df-navy); }
  .df-exercise .df-text-link { margin-top: 1.5rem; }
  .df-static-brief { padding: clamp(1.5rem, 4vw, 2.5rem); border: 1px solid var(--df-line); border-radius: var(--df-radius); background: var(--df-mist); }
  .df-static-brief h3 { margin: .75rem 0 1.5rem; font-size: 1.75rem; }
  .df-static-brief dl { display: grid; gap: 1px; background: var(--df-line); }
  .df-static-brief dl div { display: grid; grid-template-columns: 7rem 1fr; gap: 1rem; padding: .85rem; background: #fff; }
  .df-static-brief dt { color: var(--df-navy); font-weight: 800; }

  .df-ideas { background: var(--df-mist); }
  .df-reading-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.2rem; }
  .df-reading-grid article { padding: 2rem; border: 1px solid var(--df-line); border-radius: var(--df-radius); background: #fff; }
  .df-reading-visual { display: grid; place-items: center; height: 12rem; margin: 0 0 1.25rem; }
  .df-reading-visual img { display: block; width: min(100%, 18rem); max-height: 12rem; height: auto; object-fit: contain; }
  .df-reading-grid h3 { margin-bottom: 1rem; }
  .df-reading-grid article > p:not(.df-card-label) { margin-bottom: 1.5rem; color: var(--df-muted); }
  .df-reading-grid a { font-weight: 800; }

  .df-close { position: relative; background: var(--df-navy); color: #fff; }
  .df-close h2 { color: #fff; }
  .df-close .df-eyebrow { color: #84e1d9; }
  .df-close-grid { display: grid; grid-template-columns: minmax(0, 1.08fr) minmax(18rem, .92fr); gap: clamp(2.5rem, 7vw, 6rem); align-items: start; }
  .df-close-story .df-lead { margin: 1.25rem 0 1rem; color: #fff; }
  .df-close-story > p:not(.df-eyebrow, .df-lead, .df-personal-invitation),
  .df-close-next > p { margin-top: 1rem; color: #dce9ef; }
  .df-close .df-personal-video-link { color: #fff; text-decoration-color: #84e1d9; }
  .df-contact-portrait { display: block; width: min(44vw, 11.5rem); margin: 1.25rem auto 1.5rem; }
  .df-contact-portrait img { width: 100%; height: auto; filter: drop-shadow(0 .45rem .8rem rgb(0 20 38 / 20%)); }
  .df-personal-routes { display: flex; flex-wrap: wrap; align-items: center; gap: .35rem 1.5rem; margin-top: 1.1rem; }
  .df-personal-routes p { margin: 0; }
  .df-profile-history { display: flex; flex-wrap: wrap; align-items: center; gap: .25rem .55rem; }
  .df-profile-history span { color: #84e1d9; font-size: .7rem; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
  .df-profile-history a { min-height: 2.75rem; display: inline-flex; align-items: center; color: #fff; font-weight: 800; text-decoration-color: #84e1d9; }
  .df-close-next { padding: clamp(1.5rem, 4vw, 2.25rem); border: 1px solid #7294a5; border-top: .3rem solid var(--df-orange); background: var(--df-navy-dark); }
  .df-close-next h2 { font-size: clamp(1.8rem, 3vw, 2.6rem); }
  .df-close-actions { display: grid; gap: .8rem; margin-top: 1.5rem; }
  .df-button-light { border-color: #fff; background: #fff; color: var(--df-navy); }
  .df-button-outline-light { border-color: #fff; color: #fff; }
  .df-close-links { display: grid; gap: .65rem; margin-top: 1.5rem; padding-top: 1.25rem; border-top: 1px solid #577b8d; }
  .df-close-links a { color: #fff; font-weight: 800; text-decoration-color: #84e1d9; }

  .df-footer { padding-block: 2.25rem; background: var(--df-navy-dark); color: #fff; }
  .df-footer-inner { display: flex; align-items: center; justify-content: space-between; gap: 2rem; }
  .df-footer strong, .df-footer span { display: block; }
  .df-footer span { color: #b8d7e4; font-size: .85rem; }
  .df-footer a { color: #fff; }
  .df-anchor-alias { position: absolute; }
}

@layer utilities {
  .df-sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
}

@media (max-width: 62rem) {
  .df-hero-grid { grid-template-columns: minmax(0, .75fr) minmax(0, 1.25fr); gap: 2rem; }
  .df-contribution-grid { grid-template-columns: repeat(2, 1fr); }
  .df-offer-grid { grid-template-columns: 1fr; }
  .df-offer-fit { min-height: auto; }
}

@media (max-width: 48rem) {
  .df-wrap { width: min(100% - 1.5rem, 73.75rem); }
  .df-site-header { position: static; }
  .df-header-inner { align-items: flex-start; flex-direction: column; padding-block: 1rem; gap: .75rem; }
  .df-site-header nav { width: 100%; overflow-x: auto; padding-bottom: .35rem; }
  .df-site-header nav a { white-space: nowrap; }
  .df-hero { background: linear-gradient(170deg, #fff 0 62%, var(--df-mist) 62%); }
  .df-hero-grid, .df-section-heading, .df-exercise-grid, .df-close-grid { grid-template-columns: 1fr; }
  .df-hero-grid { gap: 2.75rem; }
  .df-brief-steps { grid-template-columns: 1fr; }
  .df-outcome-grid, .df-reading-grid { grid-template-columns: 1fr; }
  .df-contribution-grid, .df-work-modes { grid-template-columns: 1fr; }
  .df-contribution-grid li { min-height: auto; }
  .df-contribution-grid h3 { margin-top: 1.5rem; }
  .df-move-work, .df-move-copy { min-height: auto; }
  .df-move-visual { position: static; height: auto; margin-top: .9rem; }
  .df-move-visual img { height: auto; }
  .df-work-mode-primary { grid-column: auto; display: block; }
  .df-work-mode-primary .df-card-label { grid-row: auto; }
  .df-static-brief dl div { grid-template-columns: 1fr; gap: .2rem; }
  .df-employment-identity { position: static; }
  .df-employment-portrait { display: none; }
  .df-footer-inner { align-items: flex-start; flex-direction: column; }
  .df-footer nav { flex-wrap: wrap; }
}

@media (max-width: 22rem) {
  .df-actions, .df-actions .df-button { width: 100%; }
  .df-site-header nav { gap: .8rem; }
  .df-site-header nav a { font-size: .82rem; }
  h1 { font-size: 2.55rem; }
}

@media (max-width: 44rem) {
  .df-personal-routes { display: grid; gap: .35rem; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; }
}

@media (max-width: 22rem) {
  .df-reading-visual { height: 10rem; margin-bottom: 1rem; }
  .df-reading-visual img { max-height: 10rem; }
}

@media print {
  .df-site-header, .df-skip-link, .df-footer, .df-actions, .df-contact-portrait, .df-employment-portrait, .df-move-visual, .df-reading-visual { display: none !important; }
  body { color: #000; font-size: 11pt; }
  section { padding-block: 1rem; break-inside: avoid; }
  .df-hero, .df-contribution, .df-offers, .df-ideas, .df-close { background: #fff !important; color: #000 !important; }
  .df-contribution h2, .df-contribution h3, .df-contribution-grid p { color: #000; }
  .df-contribution-grid { display: block; background: #fff; }
  .df-contribution-grid li { min-height: auto; padding: .75rem 0; background: #fff; }
  .df-brief-card { border: 2px solid #000; background: #fff; color: #000; box-shadow: none; }
  .df-brief-card h2, .df-brief-card .df-kicker, .df-brief-steps strong, .df-brief-steps span { color: #000; }
  .df-outcome-grid, .df-reading-grid, .df-offer-grid { display: block; }
  .df-outcome-card, .df-reading-grid article, .df-offer-card { margin-bottom: 1rem; box-shadow: none; break-inside: avoid; }
  .df-close h2, .df-close .df-eyebrow, .df-close-story .df-lead, .df-close-story > p, .df-close-next > p, .df-close-links a { color: #000; }
  .df-close-next { border-color: #000; background: #fff; }
  a { color: #000; }
  a[href]::after { content: " (" attr(href) ")"; font-size: .8em; overflow-wrap: anywhere; }
}

/* V5 hero: compact, balanced layout with a scannable six-move model. */
@layer components {
  .df-header-inner { min-height: 4rem; }

  .df-hero {
    min-height: calc(100svh - 4rem);
    padding-block: clamp(1.75rem, 2.75vw, 2.5rem);
    background: linear-gradient(155deg, #fff 0 76%, var(--df-mist) 76%);
  }

  .df-hero-layout {
    display: grid;
    grid-template-columns: minmax(0, 1.05fr) minmax(28rem, .95fr);
    grid-template-areas: "intro path" "copy path";
    column-gap: clamp(3rem, 5vw, 4rem);
    row-gap: 1rem;
    align-items: center;
  }

  .df-hero-intro { grid-area: intro; }
  .df-hero-copy { grid-area: copy; max-width: 38rem; align-self: start; }
  .df-hero h1 { max-width: 13ch; font-size: clamp(2.75rem, 4vw, 3.75rem); line-height: 1.1; }
  .df-hero .df-eyebrow { margin-bottom: .75rem; letter-spacing: .08em; }
  .df-hero .df-lead { max-width: 60ch; margin-top: 1.25rem; }
  .df-hero .df-actions { margin-top: 1.1rem; }
  .df-hero .df-capacity { margin-top: .75rem; }

  .df-decision-path {
    grid-area: path;
    overflow: hidden;
    padding: clamp(1.5rem, 2.5vw, 2rem);
    border-top: .3rem solid var(--df-orange);
    border-radius: .25rem .25rem var(--df-radius) var(--df-radius);
    background: var(--df-navy);
    color: #fff;
    box-shadow: 0 20px 50px rgb(0 37 68 / 16%);
  }

  .df-path-heading { padding-bottom: 1.25rem; border-bottom: 1px solid rgb(255 255 255 / 18%); }
  .df-decision-path .df-kicker { color: #84e1d9; }
  .df-decision-path h2 { max-width: 20ch; margin-top: .35rem; color: #fff; font-size: clamp(1.55rem, 2.1vw, 2rem); }

  .df-decision-steps {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    grid-template-rows: repeat(3, auto);
    grid-auto-flow: column;
    gap: 0 1.5rem;
    margin-top: 1rem;
    padding: 0;
    list-style: none;
    counter-reset: decision-step;
  }

  .df-decision-steps li {
    position: relative;
    min-width: 0;
    min-height: 5.3rem;
    padding: .8rem 0 .8rem 2.35rem;
    border-bottom: 1px solid rgb(255 255 255 / 14%);
    counter-increment: decision-step;
  }

  .df-decision-steps li:nth-child(3),
  .df-decision-steps li:nth-child(6) { border-bottom: 0; }

  .df-decision-steps li::before {
    position: absolute;
    top: .82rem;
    left: 0;
    width: 1.5rem;
    height: 1.5rem;
    display: grid;
    place-items: center;
    border: 1px solid #58d6cc;
    border-radius: 50%;
    content: counter(decision-step);
    color: #84e1d9;
    font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
    font-size: .65rem;
    font-weight: 800;
  }

  .df-decision-steps li::after { display: none; }
  .df-decision-steps strong, .df-decision-steps span { display: block; }
  .df-decision-steps strong { color: #fff; font-family: var(--df-serif); font-size: .98rem; line-height: 1.2; }
  .df-decision-steps span { margin-top: .25rem; color: #c9dce6; font-size: .78rem; line-height: 1.35; }
}

@media (max-width: 64rem) {
  .df-hero { min-height: auto; }
  .df-hero-layout { grid-template-columns: 1fr; grid-template-areas: "intro" "copy" "path"; gap: 1.5rem; }
  .df-hero-intro, .df-hero-copy { max-width: 42rem; }
  .df-decision-path { width: 100%; max-width: 48rem; margin-top: .5rem; }
}

@media (max-width: 36rem) {
  .df-decision-steps { grid-template-columns: 1fr; grid-template-rows: none; grid-auto-flow: row; gap: 0; }
  .df-decision-steps li:nth-child(3) { border-bottom: 1px solid rgb(255 255 255 / 14%); }
  .df-decision-steps li { min-height: auto; }
}

@media print {
  .df-decision-path { border: 2px solid #000; background: #fff; color: #000; box-shadow: none; }
  .df-decision-path h2,
  .df-decision-path .df-kicker,
  .df-decision-steps strong,
  .df-decision-steps span { color: #000; }
}

/* V6: expressive momentum mark, kept decorative and out of the mobile flow. */
@layer components {
  .df-momentum {
    width: min(43rem, 62vw);
    margin: .2rem 0 0 clamp(4rem, 9vw, 8rem);
    color: #0b5d46;
    pointer-events: none;
  }

  .df-momentum p {
    margin: 0 0 -.8rem 1.75rem;
    color: #0b5d46;
    font-family: var(--df-serif);
    font-size: clamp(1rem, 1.3vw, 1.2rem);
    font-style: italic;
    font-weight: 700;
    transform: rotate(-2deg);
  }

  .df-momentum-mark { width: 100%; height: auto; overflow: visible; }
  .df-momentum-ink { fill: none; stroke: #0b5d46; stroke-linecap: round; stroke-linejoin: round; stroke-width: 5; }
  .df-momentum-echo { opacity: .24; stroke-width: 2.2; }
  .df-momentum-ink circle { fill: #0b5d46; stroke: none; opacity: .78; }
  .df-ink-splatter { stroke-width: 2.2; opacity: .7; }
}

@media (max-width: 64rem) {
  .df-momentum { width: min(38rem, 85vw); margin: .75rem 0 -1rem 2rem; }
}

@media (max-width: 48rem) {
  .df-momentum { display: none; }
}

@media (forced-colors: active) {
  .df-decision-path { border: 2px solid CanvasText; box-shadow: none; }
  .df-path-heading, .df-decision-steps li { border-color: CanvasText; }
  .df-decision-steps li::before { border-color: CanvasText; }
  .df-momentum, .df-momentum p { color: CanvasText; }
  .df-momentum-ink { stroke: CanvasText; }
  .df-momentum-ink circle { fill: CanvasText; }
}

@media print {
  .df-momentum { display: none; }
}

/* S3 outcomes-first hero: identity and route orientation precede method. */
@layer components {
  .df-first-scan {
    grid-area: path;
    overflow: hidden;
    padding: clamp(1.5rem, 2.5vw, 2rem);
    border-top: .3rem solid var(--df-orange);
    border-radius: .25rem .25rem var(--df-radius) var(--df-radius);
    background: var(--df-navy);
    color: #fff;
    box-shadow: 0 20px 50px rgb(0 37 68 / 16%);
  }
  .df-first-scan .df-kicker { color: #84e1d9; }
  .df-first-scan h2 { max-width: 20ch; margin-top: .35rem; color: #fff; font-size: clamp(1.55rem, 2.1vw, 2rem); }
  .df-first-scan ol { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 1.5rem; margin-top: 1.25rem; padding: 0; border-top: 1px solid rgb(255 255 255 / 18%); list-style: none; }
  .df-first-scan li { min-width: 0; padding: .9rem 0; border-bottom: 1px solid rgb(255 255 255 / 14%); }
  .df-first-scan strong, .df-first-scan span { display: block; }
  .df-first-scan strong { color: #fff; font-family: var(--df-serif); font-size: 1rem; line-height: 1.2; }
  .df-first-scan span { margin-top: .3rem; color: #c9dce6; font-size: .82rem; line-height: 1.4; }
  .df-working-statement { margin-top: 1rem; padding-left: 1rem; border-left: .25rem solid var(--df-orange); color: var(--df-navy); font-family: var(--df-serif); font-size: 1.05rem; font-weight: 700; line-height: 1.45; }
}

@media (max-width: 64rem) {
  .df-first-scan { width: 100%; max-width: 48rem; margin-top: .5rem; }
}

@media (max-width: 36rem) {
  .df-first-scan ol { grid-template-columns: 1fr; gap: 0; }
}

@media print {
  .df-first-scan { border: 2px solid #000; background: #fff; color: #000; box-shadow: none; }
  .df-first-scan h2, .df-first-scan .df-kicker, .df-first-scan strong, .df-first-scan span { color: #000; }
}

/* V6 short example: one authored choice, one transient response, and a
   permanently visible static comparison. */
@layer components {
  .df-exercise { background: var(--df-navy-dark); color: #fff; }
  .df-exercise h2 { color: #fff; }
  .df-exercise .df-section-heading > p { color: #c9dce6; }
  .df-exercise .df-eyebrow, .df-workbench-intro .df-kicker { color: #84e1d9; }
  .df-exercise .df-section-heading { margin-bottom: clamp(1.25rem, 2.5vw, 2rem); }
  .df-exercise-origin { width: min(100%, 52rem); margin: 0 auto clamp(2rem, 4vw, 3rem); }
  .df-exercise-origin img { width: 100%; height: auto; display: block; }

  .df-workbench {
    display: grid;
    grid-template-columns: minmax(15rem, .65fr) minmax(0, 1.7fr);
    overflow: hidden;
    border: 1px solid #416279;
    border-radius: var(--df-radius);
    background: #fff;
    box-shadow: 0 22px 60px rgb(0 20 39 / 32%);
    color: var(--df-ink);
  }
  .df-workbench-intro { padding: clamp(1.5rem, 3vw, 2.5rem); background: var(--df-teal); color: #fff; }
  .df-workbench-intro h3 { margin: 1rem 0; color: #fff; font-size: 1.75rem; }
  .df-workbench-intro p:not(.df-kicker) { color: #e5f4f2; }
  .df-workbench-routes { display: grid; gap: .35rem; margin-top: 1.5rem; }
  .df-workbench-routes a { width: fit-content; min-height: 44px; display: inline-flex; align-items: center; color: #fff; font-weight: 800; }

  .df-workbench-main { min-width: 0; padding: clamp(1.5rem, 3vw, 2.5rem); }
  .df-scenario h3 { margin: .35rem 0 1rem; color: var(--df-navy); font-size: 1.65rem; }
  .df-stage-label { color: var(--df-teal); font-size: .72rem; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
  .df-framing-pair { display: grid; gap: .65rem; margin-top: 1.25rem; }
  .df-framing-pair div { padding: .8rem 1rem; border-left: .25rem solid var(--df-orange); background: var(--df-mist); }
  .df-framing-pair strong, .df-framing-pair span { display: block; }
  .df-framing-pair strong { color: var(--df-navy); }

  .df-signal-choice { min-width: 0; margin: 2rem 0 0; padding: 0; border: 0; }
  .df-signal-choice legend { max-width: 30ch; color: var(--df-navy); font-family: var(--df-serif); font-size: 1.45rem; font-weight: 700; line-height: 1.25; }
  .df-choice-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: .65rem; margin-top: 1.25rem; }
  .df-choice-grid label { position: relative; min-width: 0; cursor: pointer; }
  .df-choice-grid input { position: absolute; opacity: 0; }
  .df-choice-grid span { min-height: 9rem; display: block; padding: 1rem; border: 2px solid var(--df-line); border-radius: .4rem; background: #fff; transition: opacity .18s; }
  .df-choice-grid strong, .df-choice-grid small { display: block; }
  .df-choice-grid strong { color: var(--df-navy); line-height: 1.25; }
  .df-choice-grid small { margin-top: .35rem; color: var(--df-muted); font-size: .84rem; line-height: 1.4; }
  .df-choice-grid label:hover span { border-color: var(--df-teal); }
  .df-choice-grid input:checked + span { border: 3px solid var(--df-teal); background: #e9f7f5; box-shadow: inset .3rem 0 var(--df-teal); }
  .df-choice-grid input:focus-visible + span, .df-signal-choice legend:focus-visible { outline: .2rem solid var(--df-orange); outline-offset: .2rem; }

  .df-authored-response { margin-top: 1.5rem; padding: 1.25rem; border-left: .35rem solid var(--df-orange); background: var(--df-mist); }
  .df-authored-response h3 { margin: .35rem 0 .7rem; color: var(--df-navy); font-size: 1.35rem; }
  .df-authored-response dl { display: grid; gap: .65rem; }
  .df-authored-response dl[hidden], .df-authored-response button[hidden] { display: none; }
  .df-authored-response dl div { padding-bottom: .55rem; border-bottom: 1px solid var(--df-line); }
  .df-authored-response dt, .df-static-brief dt { color: var(--df-navy); font-size: .74rem; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
  .df-authored-response dd, .df-static-brief dd { margin-top: .15rem; line-height: 1.5; }
  .df-restart { min-height: 44px; margin-top: 1rem; padding: .45rem .25rem; border: 0; background: transparent; color: var(--df-navy); cursor: pointer; font: inherit; font-weight: 800; text-decoration: underline; text-decoration-color: var(--df-teal); text-underline-offset: .2rem; }

  .df-exercise .df-static-brief { margin-top: 2rem; color: var(--df-ink); }
  .df-path-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1rem; margin-top: 1.25rem; }
  .df-path-grid article { min-width: 0; padding: 1.15rem; border: 1px solid var(--df-line); border-top: .3rem solid var(--df-teal); border-radius: .4rem; background: #fff; break-inside: avoid; }
  .df-path-grid h4 { margin-bottom: 1rem; color: var(--df-navy); font-size: 1.05rem; line-height: 1.3; }
  .df-path-grid dl { display: grid; gap: .7rem; }
  .df-path-grid dl div { padding-bottom: .65rem; border-bottom: 1px solid var(--df-line); }
}

@media (max-width: 64rem) {
  .df-workbench { grid-template-columns: minmax(13rem, .55fr) minmax(0, 1.45fr); }
  .df-choice-grid, .df-path-grid { grid-template-columns: 1fr; }
  .df-choice-grid span { min-height: 44px; }
}

@media (max-width: 48rem) {
  .df-workbench { grid-template-columns: 1fr; }
  .df-workbench-intro, .df-workbench-main { padding: 1.5rem; }
}

@media (prefers-reduced-motion: reduce) {
  .df-choice-grid span { transition: none; }
}

@media (forced-colors: active) {
  .df-contribution-grid li { border: 1px solid CanvasText; background: Canvas; color: CanvasText; forced-color-adjust: auto; }
  .df-contribution-grid h3, .df-contribution-grid p, .df-contribution-grid dt, .df-contribution-grid dd, .df-contribution-grid > li > span { color: CanvasText; }
  .df-choice-grid input:checked + span { border: 3px solid CanvasText; box-shadow: inset .35rem 0 CanvasText; forced-color-adjust: auto; }
  .df-authored-response, .df-path-grid article { border-color: CanvasText; }
}

@media print {
  .df-exercise { background: #fff !important; color: #000 !important; }
  .df-exercise .df-section-heading, .df-exercise-origin, .df-workbench-intro, .df-signal-choice, .df-authored-response, .df-status { display: none !important; }
  .df-workbench { display: block; border: 0; box-shadow: none; }
  .df-workbench-main { padding: 0; }
  .df-scenario { color: #000; }
  .df-path-grid { grid-template-columns: 1fr; }
  .df-exercise .df-static-brief { margin-top: 1rem; }
  .df-path-grid article { border: 1px solid #000; }
}

/* Contextual resource invitation. */
.df-resource-invitation { padding: clamp(2.5rem, 5vw, 4rem) 0; border-top: .4rem solid var(--df-orange); background: var(--df-mist); }
.df-resource-invitation-layout { display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(14rem, .65fr); gap: clamp(1.5rem, 4vw, 3.5rem); align-items: center; }
.df-resource-invitation h2 { max-width: 18ch; margin: .3rem 0 1rem; color: var(--df-navy); font-size: clamp(2rem, 4vw, 3.25rem); }
.df-resource-invitation p:not(.df-eyebrow) { max-width: 46rem; margin: 0; }
.df-resource-invitation-visual { margin: clamp(.75rem, 1.5vw, 1.25rem) 0 0; }
.df-resource-invitation-visual img { display: block; width: min(100%, 34rem); height: auto; }
.df-resource-invitation-actions { display: grid; gap: .65rem; justify-items: start; }
.df-resource-invitation-actions .df-text-link { display: inline-flex; align-items: center; min-height: 44px; }
@media (max-width: 48rem) {
  .df-resource-invitation-layout { grid-template-columns: 1fr; gap: 1rem; }
  .df-resource-invitation-visual img { width: min(100%, 32rem); }
}
@media print {
  .df-resource-invitation { display: none; }
}

/* Optional personal introduction: a quiet invitation, outside the action row. */
.df-personal-invitation { margin: 1.1rem 0 0; }
.df-personal-video-link { display: inline-flex; align-items: center; flex-wrap: wrap; gap: .35rem; min-height: 44px; color: var(--df-navy, #003366); text-underline-offset: .2em; }
.df-close .df-personal-video-link { color: #fff; text-decoration-color: #84e1d9; }
.df-close .df-personal-video-link:focus-visible { outline-color: var(--df-orange, #ff6b35); }
.df-personal-video-format { font-size: .9em; }
.df-personal-video-link:focus-visible, .df-personal-dialog button:focus-visible, .df-personal-dialog a:focus-visible { outline: 3px solid #003366; outline-offset: 4px; }
.df-personal-dialog { width: min(48rem, calc(100% - 2rem)); max-height: calc(100dvh - 2rem); padding: 1rem; border: 0; border-radius: .75rem; overflow: auto; color: #253443; background: #fff; }
.df-personal-dialog::backdrop { background: rgb(10 24 39 / .78); }
.df-personal-dialog-head { display: flex; align-items: center; justify-content: space-between; gap: 1rem; margin-bottom: .75rem; }
.df-personal-dialog-head h2 { margin: 0; font-size: 1.4rem; }
.df-personal-dialog-head button { min-height: 44px; padding: .5rem .75rem; border: 1px solid #003366; border-radius: .25rem; background: white; color: #003366; cursor: pointer; font: inherit; }
.df-personal-dialog video { display: block; width: 100%; max-height: 65dvh; background: #111; }
.df-personal-video-help { margin: .75rem 0 0; font-size: .9rem; }
@media print { .df-personal-invitation, .df-personal-dialog { display: none !important; } }

/* L3 four-scenario workbench and reader-facing comparison. */
@layer components {
  .df-scenario-choice { display: grid; gap: .45rem; min-width: 0; margin: 1.5rem 0 0; padding: 0; border: 0; }
  .df-scenario-choice legend { margin-bottom: .35rem; color: #fff; font-weight: 800; }
  .df-scenario-choice label { position: relative; min-width: 0; cursor: pointer; }
  .df-scenario-choice input { position: absolute; opacity: 0; }
  .df-scenario-choice span { min-height: 44px; display: flex; align-items: center; padding: .55rem .7rem; border: 2px solid rgb(255 255 255 / 45%); border-radius: .35rem; color: #fff; font-weight: 700; line-height: 1.25; }
  .df-scenario-choice input:checked + span { border-color: #fff; background: rgb(0 33 58 / 32%); box-shadow: inset .3rem 0 #fff; }
  .df-scenario-choice input:focus-visible + span { outline: .2rem solid var(--df-orange); outline-offset: .18rem; }

  .df-static-brief > details { margin-top: 1rem; border: 1px solid var(--df-line); border-radius: .45rem; background: #fff; }
  .df-static-brief > details > summary { min-height: 48px; padding: .8rem 1rem; cursor: pointer; color: var(--df-navy); font-family: var(--df-serif); font-size: 1.1rem; font-weight: 800; line-height: 1.35; }
  .df-static-brief > details > summary::marker { color: var(--df-teal); }
  .df-static-brief > details > summary:focus-visible { outline: .2rem solid var(--df-orange); outline-offset: .15rem; }
  .df-static-scenario-frame { display: grid; gap: .55rem; padding: 1rem; border-top: 1px solid var(--df-line); background: var(--df-mist); }
  .df-static-scenario-frame p { margin: 0; }
  .df-static-scenario-frame strong { color: var(--df-navy); }
  .df-static-brief details .df-path-grid { padding: 0 1rem 1rem; }
  .df-static-brief [data-choice-explanation] { margin: -.55rem 0 1rem; color: var(--df-muted); font-size: .9rem; }
}

@media (forced-colors: active) {
  .df-scenario-choice span, .df-static-brief > details, .df-static-scenario-frame { border-color: CanvasText; background: Canvas; color: CanvasText; }
  .df-scenario-choice input:checked + span { border-color: CanvasText; background: Canvas; color: CanvasText; box-shadow: inset .35rem 0 CanvasText; }
  .df-static-brief > details > summary, .df-static-scenario-frame strong { color: CanvasText; }
}

@media print {
  .df-workbench { display: none !important; }
  .df-static-brief > details { display: block !important; break-inside: auto; border: 1px solid #000; }
  .df-static-brief > details:not([open]) > :not(summary) { display: block !important; }
  .df-static-brief > details > summary { color: #000; }
  .df-static-scenario-frame { border-color: #000; background: #fff; }
  .df-static-scenario-frame strong { color: #000; }
}