:root {
  --gdp-navy: #06275b;
  --gdp-blue: #0879d1;
  --gdp-blue-dark: #055f9f;
  --gdp-green: #168547;
  --gdp-green-bright: #22a447;
  --gdp-ink: #243b53;
  --gdp-muted: #52687d;
  --gdp-line: #d8e5ef;
  --gdp-sky: #f1f9ff;
  --gdp-mint: #eaf7ee;
  --gdp-white: #fff;
  --gdp-focus: #ff8a2a;
  --shadow: 0 18px 50px rgba(6, 39, 91, .1);
  --radius: 1rem;
  --shell: 74rem;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--gdp-ink); background: var(--gdp-white); font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; font-size: 1rem; line-height: 1.65; }
img { display: block; max-width: 100%; height: auto; }
a { color: var(--gdp-blue-dark); text-underline-offset: .2em; }
a:hover { color: var(--gdp-navy); }
:focus-visible { outline: .2rem solid var(--gdp-focus); outline-offset: .2rem; }
.shell { width: min(calc(100% - 2rem), var(--shell)); margin-inline: auto; }
.skip-link { position: fixed; left: 1rem; top: -5rem; z-index: 100; background: var(--gdp-navy); color: white; padding: .75rem 1rem; border-radius: .5rem; }
.skip-link:focus { top: 1rem; }

.site-header { position: sticky; top: 0; z-index: 50; background: rgba(255,255,255,.96); border-bottom: 1px solid var(--gdp-line); backdrop-filter: blur(12px); }
.header-inner { min-height: 5rem; display: flex; align-items: center; justify-content: space-between; gap: 1.5rem; }
.brand { display: flex; align-items: center; gap: .8rem; text-decoration: none; color: var(--gdp-navy); }
.brand img { width: 8.8rem; }
.brand span { max-width: 9rem; font-size: .8rem; line-height: 1.2; font-weight: 750; text-transform: uppercase; letter-spacing: .05em; }
.primary-navigation { display: flex; align-items: center; gap: 1.1rem; }
.primary-navigation__links { display: flex; align-items: center; gap: 1.05rem; }
.primary-navigation__links a { color: var(--gdp-ink); text-decoration: none; font-size: .9rem; font-weight: 700; }
.primary-navigation__links a[aria-current="page"] { color: var(--gdp-blue); }
.menu-toggle { display: none; min-width: 3rem; min-height: 3rem; border: 1px solid var(--gdp-line); background: white; border-radius: .75rem; color: var(--gdp-navy); font: inherit; font-weight: 800; }

.button { display: inline-flex; min-height: 3rem; align-items: center; justify-content: center; padding: .72rem 1.15rem; border-radius: .65rem; font-weight: 800; text-decoration: none; transition: transform .18s ease, box-shadow .18s ease, background .18s ease; }
.button:hover { transform: translateY(-2px); box-shadow: 0 10px 22px rgba(6,39,91,.14); }
.button--primary { background: var(--gdp-blue); color: white; border: 2px solid var(--gdp-blue); }
.button--primary:hover { background: var(--gdp-blue-dark); color: white; }
.button--secondary { background: white; color: var(--gdp-blue-dark); border: 2px solid var(--gdp-blue); }
.text-link { font-weight: 800; }

.eyebrow { margin: 0 0 .75rem; color: var(--gdp-green); font-size: .82rem; font-weight: 900; letter-spacing: .1em; text-transform: uppercase; }
h1, h2, h3, h4 { color: var(--gdp-navy); line-height: 1.12; text-wrap: balance; }
h1 { font-size: clamp(2.7rem, 6vw, 5.4rem); letter-spacing: -.045em; }
h2 { font-size: clamp(2rem, 4vw, 3.35rem); letter-spacing: -.03em; }
h3 { font-size: clamp(1.2rem, 2vw, 1.55rem); }
h4 { margin: 1.6rem 0 .5rem; font-size: 1.08rem; }
.lead { color: var(--gdp-muted); font-size: clamp(1.08rem, 1.7vw, 1.25rem); }
.section { padding: clamp(4rem, 8vw, 7rem) 0; }
.section--sky { background: var(--gdp-sky); }
.section--mint { background: var(--gdp-mint); }
.section--navy { background: var(--gdp-navy); color: #dceaf5; }
.section--navy h2, .section--navy h3 { color: white; }
.section-heading { max-width: 49rem; margin: 0 auto 2.7rem; text-align: center; }
.section-heading p { color: var(--gdp-muted); font-size: 1.1rem; text-wrap: pretty; }
.question-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: .65rem; margin: 1.4rem 0; padding: 0; list-style: none; text-align: left; }
.question-grid li { padding: .8rem 1rem; border: 1px solid var(--gdp-line); border-radius: .75rem; background: var(--gdp-sky); color: var(--gdp-navy); font-weight: 750; }

.hero { background: linear-gradient(135deg, var(--gdp-sky), white 62%, var(--gdp-mint)); overflow: hidden; }
.hero__grid { display: grid; grid-template-columns: 1.08fr .92fr; min-height: 40rem; align-items: center; gap: clamp(2rem, 5vw, 5rem); }
.hero__grid--single { grid-template-columns: minmax(0, 48rem); justify-content: center; min-height: 35rem; }
.hero h1 { margin: .5rem 0 1.4rem; }
.hero h1 span { color: var(--gdp-green); }
.hero__control { margin: 1rem 0 0; color: var(--gdp-navy); font-weight: 850; }
.hero__actions { display: flex; flex-wrap: wrap; gap: .8rem; margin-top: 1.75rem; }
.hero__visual { position: relative; min-height: 29rem; border-radius: 2rem 2rem 2rem 7rem; overflow: hidden; background: linear-gradient(155deg, #1281c7, #5bc36e); box-shadow: var(--shadow); }
.hero__visual img { width: 100%; height: 100%; min-height: 29rem; object-fit: cover; }
.hero__visual--prototype { display: grid; place-items: center; padding: 3rem; color: white; text-align: center; }
.hero__visual--prototype strong { max-width: 15rem; font-size: 1.35rem; }

.cards { display: grid; grid-template-columns: repeat(5, 1fr); gap: 1rem; }
.solution-card { position: relative; padding: 1.35rem; border: 1px solid var(--gdp-line); border-top: .28rem solid var(--accent, var(--gdp-blue)); border-radius: var(--radius); background: white; box-shadow: 0 8px 30px rgba(6,39,91,.06); }
.solution-card--blue { --accent: var(--gdp-blue); }
.solution-card--green { --accent: var(--gdp-green-bright); }
.solution-card--orange { --accent: #df6b10; }
.solution-card--purple { --accent: #7650b5; }
.solution-card--slate { --accent: #55738c; }
.solution-card__number { display: inline-grid; place-items: center; width: 2rem; height: 2rem; border-radius: 50%; background: color-mix(in srgb, var(--accent) 12%, white); color: var(--accent); font-weight: 900; }
.solution-card p { color: var(--gdp-muted); }

.split { display: grid; grid-template-columns: .9fr 1.1fr; gap: clamp(2rem, 6vw, 5rem); align-items: center; }
.media-panel { min-height: 25rem; border-radius: 1.5rem; background: linear-gradient(145deg, var(--gdp-blue), var(--gdp-green-bright)); color: white; display: grid; place-items: center; padding: 2rem; text-align: center; box-shadow: var(--shadow); }
.feature-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1rem; }
.feature { padding: 1.35rem; border: 1px solid var(--gdp-line); border-radius: var(--radius); background: white; }
.section--navy .feature h3 { color: var(--gdp-navy); }
.feature p { margin-bottom: 0; color: var(--gdp-muted); }
.follow-up-note { max-width: 54rem; margin: 1.4rem auto 0; padding: 1rem 1.2rem; border-left: .25rem solid var(--gdp-green); background: var(--gdp-mint); text-align: center; text-wrap: pretty; }
.channel-list { display: flex; flex-wrap: wrap; justify-content: center; gap: .6rem; margin: 0 auto 1rem; padding: 0; list-style: none; }
.channel-list li { padding: .5rem .75rem; border-radius: 999px; background: var(--gdp-sky); color: var(--gdp-navy); font-weight: 750; }
.section-action { margin: 1.75rem 0 0; text-align: center; }
.feature__action { display: block; margin-top: 1.25rem; }
.section--tight-bottom { padding-bottom: clamp(3rem, 5vw, 4.5rem); }

.steps { display: grid; grid-template-columns: repeat(6, 1fr); gap: .85rem; counter-reset: steps; }
.step { padding: 1.2rem 1rem; background: white; border: 1px solid var(--gdp-line); border-radius: 1rem; text-align: center; }
.step::before { counter-increment: steps; content: counter(steps); display: grid; place-items: center; width: 2.4rem; height: 2.4rem; margin: 0 auto .75rem; border-radius: 50%; background: var(--gdp-blue); color: white; font-weight: 900; }
.step strong { color: var(--gdp-navy); }

.cta-band { display: grid; grid-template-columns: 1fr auto; gap: 2rem; align-items: center; padding: 2rem; border-radius: 1.4rem; background: var(--gdp-navy); color: white; }
.cta-band h2 { margin: 0 0 .5rem; color: white; font-size: clamp(1.8rem, 3vw, 2.5rem); }
.cta-band p { margin: 0; color: #dceaf5; }
.cta-band p + p { margin-top: .85rem; }
.notice { border-left: .3rem solid var(--gdp-focus); padding: 1rem 1.2rem; background: #fff7eb; color: #5e421f; }
.page-hero { padding: 5rem 0 3rem; background: linear-gradient(135deg, var(--gdp-sky), white); }
.page-hero h1 { max-width: 55rem; margin-bottom: 1rem; font-size: clamp(2.5rem, 5vw, 4.6rem); }
.page-hero p { max-width: 50rem; }
.prose { max-width: 49rem; }
.prose h2 { margin-top: 3rem; }
.prose h3 { margin-top: 2rem; }
.prose li + li { margin-top: .5rem; }
.section-navigation { position: sticky; top: 5rem; z-index: 20; padding: 1rem 0; background: rgba(255,255,255,.97); border-block: 1px solid var(--gdp-line); box-shadow: 0 8px 20px rgba(6,39,91,.06); backdrop-filter: blur(12px); }
.section-navigation__inner { display: block; text-align: center; }
.section-navigation strong { display: block; margin-bottom: .8rem; color: var(--gdp-navy); font-size: clamp(1.08rem, 1.8vw, 1.3rem); }
.section-navigation__links { display: flex; flex-wrap: wrap; justify-content: center; gap: .55rem; }
.section-navigation a { display: inline-flex; align-items: center; min-height: 2.75rem; padding: .45rem .78rem; border: 1px solid var(--gdp-line); border-radius: 999px; background: var(--gdp-sky); color: var(--gdp-blue-dark); font-size: .84rem; font-weight: 800; line-height: 1.25; text-decoration: none; }
.section-navigation a:hover { border-color: var(--gdp-blue); background: white; }
.section-navigation a[aria-current] { border-color: var(--gdp-green); background: var(--gdp-mint); color: var(--gdp-green); }
.solution-section { scroll-margin-top: 9rem; }
.solution-layout { display: grid; grid-template-columns: minmax(17rem, .78fr) minmax(0, 1.22fr); gap: clamp(2.5rem, 7vw, 6rem); align-items: start; }
.solution-summary { position: sticky; top: 10rem; }
.solution-summary h2 { font-size: clamp(2rem, 3.6vw, 3.05rem); }
.solution-summary .lead { text-wrap: pretty; }
.back-link { display: inline-block; margin-top: 2rem; font-weight: 800; }
.solution-result { margin-top: 2rem; padding: 1rem 1.2rem; border-left: .3rem solid var(--gdp-green); background: var(--gdp-mint); color: var(--gdp-navy); text-wrap: pretty; }

.authority-grid { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 1rem; }
.authority-card { padding: 1.35rem; border: 1px solid var(--gdp-line); border-top: .25rem solid var(--gdp-green); border-radius: var(--radius); background: white; }
.authority-card span { display: inline-block; margin-bottom: .65rem; color: var(--gdp-green); font-size: .82rem; font-weight: 900; letter-spacing: .08em; }
.authority-card h3 { margin: 0 0 .6rem; }
.authority-card p { margin: 0; color: var(--gdp-muted); }
.process-stages { display: grid; gap: 1rem; }
.process-stage { display: grid; grid-template-columns: 3.5rem minmax(10rem, .55fr) minmax(0, 1.45fr); gap: 1.25rem; align-items: start; padding: 1.5rem; border: 1px solid var(--gdp-line); border-radius: 1.2rem; background: white; box-shadow: 0 8px 28px rgba(6,39,91,.05); }
.process-stage__number { display: grid; place-items: center; width: 3rem; height: 3rem; border-radius: 50%; background: var(--gdp-blue); color: white; font-weight: 900; }
.process-stage__heading .eyebrow { margin-bottom: .35rem; }
.process-stage__heading h2 { margin: 0; font-size: clamp(1.65rem, 3vw, 2.25rem); }
.process-stage__body p { margin-top: 0; }
.process-example { margin-bottom: 0; padding: .85rem 1rem; border-left: .22rem solid var(--gdp-blue); background: var(--gdp-sky); color: var(--gdp-muted); }
.authority-level-list { padding-left: 1.3rem; }
.authority-level-list li + li { margin-top: .75rem; }
.trust-principles, .evidence-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; }
.trust-principle, .evidence-card { padding: 1.35rem; border-radius: var(--radius); }
.trust-principle { border: 1px solid var(--gdp-line); border-top: .25rem solid var(--gdp-green); background: white; }
.trust-principle span { display: inline-block; margin-bottom: .65rem; color: var(--gdp-green); font-size: .82rem; font-weight: 900; letter-spacing: .08em; }
.trust-principle h3, .evidence-card h3 { margin: 0 0 .6rem; }
.trust-principle p, .evidence-card p { margin: 0; }
.evidence-card { background: white; color: var(--gdp-muted); }
.section--navy .evidence-card h3 { color: var(--gdp-navy); }
.about-values { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; }
.about-value { padding: 1.35rem; border: 1px solid var(--gdp-line); border-top: .25rem solid var(--gdp-blue); border-radius: var(--radius); background: white; }
.about-value span { display: inline-block; margin-bottom: .65rem; color: var(--gdp-blue-dark); font-size: .82rem; font-weight: 900; letter-spacing: .08em; }
.about-value h3 { margin: 0 0 .6rem; }
.about-value p { margin: 0; color: var(--gdp-muted); }
.about-on-navy p { color: #dceaf5; }
.contact-steps { display: grid; max-width: 58rem; margin-inline: auto; gap: 1rem; }
.contact-step { display: grid; grid-template-columns: 3rem 1fr; gap: 1rem; align-items: start; padding: 1.25rem; border: 1px solid var(--gdp-line); border-radius: var(--radius); background: white; }
.contact-step > span { display: grid; place-items: center; width: 2.7rem; height: 2.7rem; border-radius: 50%; background: var(--gdp-blue); color: white; font-weight: 900; }
.contact-step h3 { margin: .15rem 0 .45rem; }
.contact-step p { margin: 0; color: var(--gdp-muted); }
.contact-checklist { margin: 1rem 0 1.25rem; padding-left: 1.25rem; }
.contact-checklist li + li { margin-top: .45rem; }
.contact-policy-note { max-width: 46rem; margin: .9rem 0 0; color: var(--gdp-muted); font-size: .95rem; text-wrap: pretty; }
.cta-band .contact-policy-note { color: #dceaf5; }
.cta-band .contact-policy-note a { color: white; }
.preview-artifacts { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
.preview-artifact { padding: 1.4rem; border: 1px solid var(--gdp-line); border-top: .25rem solid var(--gdp-green); border-radius: var(--radius); background: white; }
.preview-artifact span { color: var(--gdp-green); font-size: .82rem; font-weight: 900; letter-spacing: .08em; }
.preview-artifact h3 { margin: .65rem 0; }
.preview-artifact p { margin: 0; color: var(--gdp-muted); }

.site-footer { padding: 3.5rem 0; background: #041b3b; color: #bdd0e1; }
.footer-grid { display: grid; grid-template-columns: 1.7fr 1fr 1fr; gap: 2rem; }
.footer-brand { color: white; font-size: 2rem; font-weight: 950; text-decoration: none; }
.site-footer nav { display: grid; align-content: start; gap: .45rem; }
.site-footer a { color: #e2edf6; }

@media (max-width: 68rem) {
  .brand span { display: none; }
  .menu-toggle { display: inline-flex; align-items: center; justify-content: center; }
  .primary-navigation { display: none; position: absolute; left: 1rem; right: 1rem; top: calc(100% + .5rem); padding: 1rem; border: 1px solid var(--gdp-line); border-radius: 1rem; background: white; box-shadow: var(--shadow); }
  .primary-navigation.is-open { display: grid; }
  .primary-navigation__links { display: grid; gap: .2rem; }
  .primary-navigation__links a { display: block; padding: .75rem; }
  .primary-navigation .button { margin-top: .6rem; }
  .cards { grid-template-columns: repeat(2, 1fr); }
  .authority-grid { grid-template-columns: repeat(2, 1fr); }
  .trust-principles, .evidence-grid { grid-template-columns: repeat(2, 1fr); }
  .about-values { grid-template-columns: repeat(2, 1fr); }
  .preview-artifacts { grid-template-columns: 1fr; }
  .steps { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 48rem) {
  .hero__grid { grid-template-columns: 1fr; padding: 4.5rem 0; min-height: 0; }
  .hero__visual { grid-row: 2; min-height: 20rem; border-bottom-left-radius: 4rem; }
  .hero__visual img { min-height: 20rem; }
  .cards, .split, .feature-grid, .footer-grid { grid-template-columns: 1fr; }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .cta-band { grid-template-columns: 1fr; }
  .section-navigation { position: static; }
  .solution-layout { grid-template-columns: 1fr; }
  .solution-summary { position: static; }
  .process-stage { grid-template-columns: 3.5rem 1fr; }
  .process-stage__body { grid-column: 2; }
}

@media (max-width: 30rem) {
  .cards, .steps { grid-template-columns: 1fr; }
  .question-grid { grid-template-columns: 1fr; }
  .authority-grid { grid-template-columns: 1fr; }
  .trust-principles, .evidence-grid { grid-template-columns: 1fr; }
  .about-values { grid-template-columns: 1fr; }
  .process-stage { grid-template-columns: 1fr; }
  .process-stage__body { grid-column: auto; }
  .hero__actions .button { width: 100%; }
}

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