:root {
    --black: #0A0A0A;
    --black-light: #111111;
    --black-card: #151515;
    --black-border: #1E1E1E;
    --platinum: #E5E4E2;
    --platinum-dim: #A8A7A5;
    --gold: #D4AF37;
    --gold-dim: #B8962F;
    --white: #FFFFFF;
}

*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Open Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--black);
    color: var(--platinum);
    line-height: 1.75;
    -webkit-font-smoothing: antialiased;
}

a {
    color: var(--gold);
    text-decoration: none;
    transition: color 0.25s;
}

a:hover {
    color: var(--platinum);
}

a:focus-visible,
button:focus-visible {
    outline: 2px solid var(--gold);
    outline-offset: 4px;
}

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

h1,
h2,
h3,
h4 {
    font-family: 'Montserrat', sans-serif;
    line-height: 1.15;
    letter-spacing: -0.02em;
}

.container {
    width: min(1120px, calc(100% - 48px));
    margin: 0 auto;
}

.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--gold);
    color: var(--black);
    padding: 8px 16px;
    z-index: 10000;
    font-family: 'Montserrat', sans-serif;
    font-weight: 700;
}

.skip-link:focus {
    top: 0;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(10, 10, 10, 0.94);
    backdrop-filter: blur(18px);
    border-bottom: 1px solid var(--black-border);
}

.site-header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 24px;
    padding: 16px 0;
}

.brand-lockup {
    display: inline-flex;
    align-items: center;
    gap: 14px;
    color: var(--white);
}

.brand-lockup img {
    width: 64px;
    height: auto;
}

.brand-name {
    font-family: 'Montserrat', sans-serif;
    font-size: 0.88rem;
    font-weight: 800;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.nav-links {
    display: flex;
    flex-wrap: wrap;
    justify-content: flex-end;
    gap: 18px;
}

.nav-links a {
    font-family: 'Montserrat', sans-serif;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--platinum-dim);
}

.nav-links a.active,
.nav-links a:hover {
    color: var(--gold);
}

.page-hero {
    padding: 96px 0 56px;
    background:
        radial-gradient(circle at top left, rgba(212, 175, 55, 0.08), transparent 38%),
        radial-gradient(circle at top right, rgba(74, 20, 140, 0.10), transparent 32%),
        linear-gradient(180deg, var(--black-light), var(--black));
    border-bottom: 1px solid var(--black-border);
}

.eyebrow {
    display: inline-block;
    margin-bottom: 20px;
    font-family: 'Montserrat', sans-serif;
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: var(--gold);
}

.page-hero h1 {
    font-size: clamp(2.25rem, 5vw, 4.4rem);
    color: var(--white);
    max-width: 900px;
    margin-bottom: 16px;
    text-wrap: balance;
}

.page-hero p {
    max-width: 820px;
    color: var(--platinum-dim);
    font-size: 1.05rem;
}

.breadcrumb {
    margin-top: 18px;
    color: var(--platinum-dim);
    font-size: 0.88rem;
}

.breadcrumb a {
    color: var(--gold);
}

.page-shell {
    padding: 56px 0 88px;
}

.content-grid {
    display: grid;
    grid-template-columns: minmax(0, 2.2fr) minmax(280px, 0.95fr);
    gap: 32px;
    align-items: start;
}

.article-card,
.sidebar-card,
.feature-card,
.image-card {
    background: var(--black-card);
    border: 1px solid var(--black-border);
}

.article-card {
    padding: 36px;
}

.article-card + .article-card {
    margin-top: 24px;
}

.section-kicker {
    color: var(--gold);
    font-family: 'Montserrat', sans-serif;
    font-size: 0.74rem;
    font-weight: 700;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    margin-bottom: 10px;
}

.article-card h2 {
    color: var(--white);
    font-size: clamp(1.5rem, 2vw, 2.15rem);
    margin-bottom: 14px;
}

.article-card p,
.article-card li {
    color: var(--platinum-dim);
    font-size: 1rem;
}

.article-card p + p,
.article-card ul,
.article-card ol,
.article-card .feature-grid,
.article-card .image-grid {
    margin-top: 18px;
}

.article-card ul,
.article-card ol {
    padding-left: 20px;
}

.article-card li + li {
    margin-top: 10px;
}

.feature-grid,
.related-grid,
.image-grid {
    display: grid;
    gap: 18px;
}

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

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

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

.feature-card,
.image-card {
    padding: 22px;
}

.feature-card h3,
.image-card h3,
.sidebar-card h3 {
    color: var(--white);
    font-size: 1rem;
    margin-bottom: 10px;
}

.feature-card p,
.image-card p,
.sidebar-card p,
.sidebar-card li {
    color: var(--platinum-dim);
    font-size: 0.95rem;
}

.image-card img {
    width: 100%;
    border: 1px solid var(--black-border);
    margin-bottom: 12px;
}

.sidebar-stack {
    display: grid;
    gap: 20px;
}

.sidebar-card {
    padding: 24px;
}

.sidebar-card ul {
    padding-left: 18px;
    margin-top: 12px;
}

.sidebar-card li + li {
    margin-top: 10px;
}

.quick-links {
    display: grid;
    gap: 10px;
    margin-top: 12px;
}

.quick-links a {
    font-family: 'Montserrat', sans-serif;
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.related-section {
    margin-top: 24px;
}

.related-tile {
    background: var(--black-card);
    border: 1px solid var(--black-border);
    padding: 22px;
    transition: border-color 0.25s, transform 0.25s;
}

.related-tile:hover {
    border-color: var(--gold-dim);
    transform: translateY(-2px);
}

.related-tile h4 {
    color: var(--white);
    font-size: 1rem;
    margin-bottom: 8px;
}

.related-tile p {
    color: var(--platinum-dim);
    font-size: 0.95rem;
    margin-bottom: 12px;
}

.site-footer {
    border-top: 1px solid var(--black-border);
    background: var(--black-light);
    padding: 42px 0;
}

.site-footer .brand-lockup {
    margin-bottom: 18px;
}

.footer-copy {
    color: var(--platinum-dim);
    font-size: 0.92rem;
    max-width: 820px;
    margin-bottom: 18px;
}

.footer-links {
    display: flex;
    flex-wrap: wrap;
    gap: 18px;
    margin-bottom: 18px;
}

.footer-links a {
    font-family: 'Montserrat', sans-serif;
    font-size: 0.74rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--platinum-dim);
}

.footer-links a:hover {
    color: var(--gold);
}

.footer-legal {
    color: var(--platinum-dim);
    font-size: 0.78rem;
    opacity: 0.8;
    max-width: 860px;
}

@media (max-width: 920px) {
    .content-grid,
    .feature-grid,
    .related-grid,
    .image-grid {
        grid-template-columns: 1fr;
    }

    .site-header .container {
        align-items: flex-start;
        flex-direction: column;
    }

    .nav-links {
        justify-content: flex-start;
    }
}

@media (max-width: 640px) {
    .container {
        width: min(1120px, calc(100% - 32px));
    }

    .page-hero {
        padding: 84px 0 44px;
    }

    .article-card,
    .sidebar-card,
    .feature-card,
    .image-card,
    .related-tile {
        padding: 22px;
    }

    .brand-lockup img {
        width: 54px;
    }
}