:root {
    --canvas: #ffffff;
    --cloud: #f7f7f7;
    --fog: #e8e8e8;
    --ink: #1a1a1a;
    --charcoal: #3d3d3d;
    --graphite: #636363;
    --primary: #024ad8;
    --primary-deep: #0e3191;
    --soft-blue: #c9e0fc;
    --line: #e8e8e8;
    --shadow: 0 2px 8px rgba(26, 26, 26, 0.08);
    --radius-card: 16px;
    --radius-control: 4px;
    --container: 1180px;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    background: var(--canvas);
    color: var(--ink);
    font-family: Inter, Manrope, Arial, sans-serif;
    font-size: 16px;
    line-height: 1.55;
}

img {
    display: block;
    max-width: 100%;
}

a {
    color: inherit;
}

.skip-link {
    left: 16px;
    position: absolute;
    top: -80px;
    z-index: 20;
    background: var(--primary);
    color: #fff;
    padding: 12px 18px;
    border-radius: var(--radius-control);
}

.skip-link:focus {
    top: 16px;
}

.container {
    width: min(100% - 32px, var(--container));
    margin-inline: auto;
}

.utility-strip {
    min-height: 36px;
    padding: 8px 32px;
    display: flex;
    justify-content: space-between;
    gap: 16px;
    background: var(--ink);
    color: #fff;
    font-size: 14px;
}

.top-nav {
    min-height: 68px;
    padding: 12px 32px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    border-bottom: 1px solid var(--line);
    background: var(--canvas);
    position: sticky;
    top: 0;
    z-index: 10;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
}

.brand-mark {
    width: 44px;
    height: 44px;
    display: grid;
    place-items: center;
    background: var(--primary);
    color: #fff;
    border-radius: var(--radius-control);
    font-weight: 800;
    letter-spacing: 0.04em;
}

.brand strong,
.brand small {
    display: block;
}

.brand small {
    color: var(--graphite);
    font-size: 12px;
}

.nav-toggle {
    display: none;
    min-height: 44px;
    border: 1px solid var(--ink);
    background: var(--canvas);
    border-radius: var(--radius-control);
    padding: 8px 14px;
    font-weight: 700;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 4px;
    flex-wrap: wrap;
}

.nav-links a {
    min-height: 44px;
    display: inline-flex;
    align-items: center;
    padding: 8px 12px;
    border-radius: 999px;
    text-decoration: none;
    color: var(--charcoal);
    font-weight: 600;
}

.nav-links a.active {
    background: var(--ink);
    color: #fff;
}

.home-hero,
.page-hero {
    padding: 56px 0 72px;
    background: linear-gradient(180deg, var(--cloud), #fff);
}

.hero-card {
    display: grid;
    grid-template-columns: minmax(0, 0.95fr) minmax(320px, 1.05fr);
    gap: 40px;
    align-items: center;
    background: var(--canvas);
    border-radius: var(--radius-card);
    padding: 32px;
    box-shadow: var(--shadow);
    position: relative;
    overflow: hidden;
}

.hero-card::before,
.hero-card::after {
    content: "";
    position: absolute;
    width: 72px;
    height: 62%;
    background: var(--primary);
    transform: skewX(-24deg);
    opacity: 0.9;
}

.hero-card::before {
    left: -54px;
    top: 12%;
}

.hero-card::after {
    right: -54px;
    bottom: 12%;
}

.hero-copy,
.hero-photo {
    position: relative;
    z-index: 1;
}

.eyebrow {
    margin: 0 0 12px;
    color: var(--primary);
    font-weight: 800;
    font-size: 13px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

h1,
h2,
h3,
p {
    margin-top: 0;
}

h1 {
    max-width: 760px;
    font-size: clamp(2.25rem, 6vw, 4.5rem);
    line-height: 1;
    letter-spacing: -0.04em;
    margin-bottom: 24px;
    font-weight: 600;
}

h2 {
    font-size: clamp(1.8rem, 3vw, 2.75rem);
    line-height: 1.05;
    letter-spacing: -0.025em;
}

h3 {
    font-size: 1.15rem;
    line-height: 1.25;
}

.lead {
    color: var(--charcoal);
    font-size: clamp(1.05rem, 2vw, 1.25rem);
    max-width: 720px;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 28px;
}

.button-primary,
.button-outline {
    min-height: 44px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 24px;
    border-radius: var(--radius-control);
    font-weight: 800;
    letter-spacing: 0.04em;
    text-decoration: none;
    text-transform: uppercase;
    font-size: 14px;
}

.button-primary {
    background: var(--primary);
    color: #fff;
}

.button-outline {
    border: 1px solid var(--primary);
    color: var(--primary);
    background: var(--canvas);
}

.hero-photo,
.hero-image,
.feature-strip figure {
    margin: 0;
}

.hero-photo img,
.hero-image img,
.feature-strip img {
    width: 100%;
    aspect-ratio: 4 / 3;
    object-fit: cover;
    border-radius: var(--radius-card);
}

figcaption {
    margin-top: 8px;
    color: var(--graphite);
    font-size: 12px;
}

.section-heading {
    max-width: 760px;
    margin-bottom: 28px;
}

.section-heading p:not(.eyebrow) {
    color: var(--charcoal);
}

.portal-section,
.feature-strip,
.faq-shell {
    padding: 80px 0;
}

.portal-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
}

.portal-card,
.related-card,
.info-card,
.context-list article {
    background: var(--canvas);
    border: 1px solid var(--line);
    border-radius: var(--radius-card);
    box-shadow: var(--shadow);
}

.portal-card,
.related-card {
    padding: 24px;
    text-decoration: none;
}

.portal-card span,
.related-card span {
    display: inline-flex;
    margin-bottom: 18px;
    padding: 6px 10px;
    border-radius: 999px;
    background: var(--soft-blue);
    color: var(--primary-deep);
    font-size: 13px;
    font-weight: 800;
}

.portal-card p,
.related-card small {
    color: var(--charcoal);
}

.context-band {
    padding: 72px 0;
    background: var(--ink);
    color: #fff;
}

.context-band .eyebrow {
    color: #8db3ff;
}

.context-grid {
    display: grid;
    grid-template-columns: 0.8fr 1.2fr;
    gap: 40px;
}

.context-list {
    display: grid;
    gap: 16px;
}

.context-list article {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.18);
    padding: 24px;
    box-shadow: none;
}

.context-list p,
.help-band p,
.site-footer p {
    color: rgba(255, 255, 255, 0.76);
}

.feature-strip {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
}

.breadcrumbs {
    display: flex;
    gap: 10px;
    align-items: center;
    flex-wrap: wrap;
    margin-bottom: 28px;
    color: var(--graphite);
    font-size: 14px;
}

.breadcrumbs a {
    color: var(--primary);
    text-decoration: none;
}

.page-hero-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(280px, 420px);
    gap: 40px;
    align-items: center;
}

.content-shell {
    display: grid;
    grid-template-columns: 260px minmax(0, 1fr);
    gap: 48px;
    padding: 72px 0;
}

.toc {
    position: sticky;
    top: 100px;
    align-self: start;
    display: grid;
    gap: 10px;
    padding: 20px;
    border: 1px solid var(--line);
    border-radius: var(--radius-card);
    background: var(--cloud);
}

.toc a {
    color: var(--primary);
    text-decoration: none;
}

.article-body {
    max-width: 820px;
}

.content-block {
    padding-bottom: 48px;
    margin-bottom: 48px;
    border-bottom: 1px solid var(--line);
}

.content-block p {
    color: var(--charcoal);
}

.info-grid,
.related-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
    margin-top: 24px;
}

.info-card {
    padding: 20px;
}

.info-card p {
    margin-bottom: 0;
}

.related-content {
    padding-top: 16px;
}

.faq-list {
    display: grid;
    gap: 12px;
    max-width: 860px;
}

details {
    border: 1px solid var(--line);
    border-radius: var(--radius-card);
    background: var(--canvas);
    box-shadow: var(--shadow);
    overflow: hidden;
}

summary {
    min-height: 56px;
    padding: 18px 22px;
    cursor: pointer;
    font-weight: 800;
}

details p {
    padding: 0 22px 22px;
    color: var(--charcoal);
}

.help-band {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
    padding: 64px max(32px, calc((100vw - var(--container)) / 2));
    background: var(--ink);
    color: #fff;
}

.help-band .eyebrow {
    color: #8db3ff;
}

.site-footer {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
    padding: 56px max(32px, calc((100vw - var(--container)) / 2));
    background: #111;
    color: #fff;
}

.footer-brand {
    color: #fff;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.82);
    text-decoration: none;
}

@media (max-width: 920px) {
    .utility-strip,
    .top-nav {
        padding-inline: 16px;
    }

    .nav-toggle {
        display: inline-flex;
        align-items: center;
    }

    .nav-links {
        display: none;
        width: 100%;
        padding-top: 12px;
    }

    .nav-links.open {
        display: grid;
    }

    .top-nav {
        flex-wrap: wrap;
    }

    .hero-card,
    .page-hero-grid,
    .context-grid,
    .feature-strip,
    .content-shell,
    .help-band,
    .site-footer {
        grid-template-columns: 1fr;
    }

    .portal-grid,
    .info-grid,
    .related-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .toc {
        position: static;
    }
}

@media (max-width: 620px) {
    .utility-strip {
        display: grid;
    }

    .hero-card {
        padding: 22px;
    }

    .hero-card::before,
    .hero-card::after {
        display: none;
    }

    .portal-grid,
    .info-grid,
    .related-grid,
    .footer-links {
        grid-template-columns: 1fr;
    }

    .portal-section,
    .feature-strip,
    .faq-shell {
        padding: 56px 0;
    }
}