:root {
    --research-bg: #06080d;
    --research-surface: #0b1017;
    --research-surface-raised: #131b26;
    --research-border: rgba(160, 182, 210, 0.14);
    --research-border-strong: rgba(160, 182, 210, 0.26);
    --research-text: #f4f7fb;
    --research-muted: #bcc8d7;
    --research-dim: #8b99ac;
    --research-accent: #7b9bff;
    --research-accent-light: #dce8f9;
    --research-accent-soft: rgba(123, 155, 255, 0.12);
    --research-serif: "Source Serif 4", Georgia, serif;
    --research-ui: "Manrope", system-ui, sans-serif;
    --research-mono: "IBM Plex Mono", monospace;
}

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

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    background:
        radial-gradient(circle at 20% 10%, rgba(120, 216, 255, 0.08), transparent 34%),
        radial-gradient(circle at 80% 18%, rgba(123, 155, 255, 0.10), transparent 24%),
        linear-gradient(180deg, #06080d 0%, #0b1017 100%);
    color: var(--research-text);
    font-family: var(--research-ui);
    line-height: 1.65;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

body::after {
    content: "";
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 9999;
    opacity: 0.02;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.72' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

a {
    color: inherit;
}

.container {
    width: min(1180px, calc(100% - 48px));
    margin: 0 auto;
}

.narrow {
    width: min(780px, calc(100% - 48px));
    margin: 0 auto;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    background: rgba(4, 6, 9, 0.84);
    border-bottom: 1px solid var(--research-border);
}

.site-header .container {
    min-height: 72px;
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    gap: 20px;
}

.site-logo {
    text-decoration: none;
    color: var(--research-text);
    letter-spacing: 0.12em;
    text-transform: uppercase;
    font-size: 14px;
    font-weight: 700;
    justify-self: start;
}

.site-logo .badge {
    margin-left: 8px;
    padding: 3px 7px;
    border-radius: 999px;
    border: 1px solid var(--research-border-strong);
    background: var(--research-accent-soft);
    color: var(--research-accent-light);
    font-family: var(--research-mono);
    font-size: 10px;
    letter-spacing: 0.14em;
}

.site-nav {
    display: flex;
    align-items: center;
    justify-content: center;
    justify-self: center;
    gap: 24px;
}

.site-nav a,
.nav-dropdown-trigger {
    font-size: 13px;
    font-weight: 500;
    letter-spacing: 0.02em;
    color: var(--research-muted);
    text-decoration: none;
    background: none;
    border: none;
    cursor: pointer;
    transition: color 0.2s ease;
}

.site-nav a:hover,
.nav-dropdown-trigger:hover {
    color: var(--research-text);
}

.nav-dropdown-wrapper {
    position: relative;
}

.nav-dropdown-trigger::after {
    content: "";
    display: inline-block;
    width: 0;
    height: 0;
    border-left: 4px solid transparent;
    border-right: 4px solid transparent;
    border-top: 5px solid currentColor;
    margin-left: 6px;
    vertical-align: middle;
    opacity: 0.55;
}

.nav-dropdown-menu {
    display: none;
    position: absolute;
    top: calc(100% + 10px);
    left: 50%;
    transform: translateX(-50%);
    min-width: 200px;
    background: rgba(10, 10, 10, 0.98);
    border: 1px solid var(--research-border);
    border-radius: 12px;
    padding: 8px 0;
    box-shadow: 0 24px 60px rgba(0, 0, 0, 0.55);
}

.nav-dropdown-wrapper:hover .nav-dropdown-menu {
    display: block;
}

.nav-dropdown-menu a {
    display: block;
    padding: 10px 16px;
    color: var(--research-muted);
}

.nav-dropdown-menu a:hover {
    color: var(--research-text);
    background: rgba(255, 255, 255, 0.04);
}

.nav-cta {
    text-decoration: none;
    padding: 11px 18px;
    border-radius: 999px;
    border: 1px solid var(--research-border-strong);
    color: var(--research-text);
    justify-self: end;
    background: linear-gradient(180deg, rgba(205, 211, 220, 0.16), rgba(205, 211, 220, 0.03));
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.hero {
    padding: 120px 0 88px;
}

.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 28px;
    color: var(--research-accent-light);
    font-family: var(--research-mono);
    font-size: 11px;
    font-weight: 500;
    letter-spacing: 0.18em;
    text-transform: uppercase;
}

.eyebrow::before {
    content: "";
    display: block;
    width: 32px;
    height: 1px;
    background: linear-gradient(90deg, rgba(227, 232, 239, 0.08), var(--research-accent));
}

.hero h1 {
    margin: 0 0 22px;
    font-size: clamp(3rem, 5.5vw, 5.3rem);
    line-height: 1.02;
    letter-spacing: -0.05em;
    font-weight: 300;
}

.hero h1 .serif {
    display: block;
    font-family: var(--research-serif);
    font-style: italic;
    font-weight: 400;
    color: #f8fbff;
}

.hero p {
    max-width: 760px;
    margin: 0;
    color: var(--research-muted);
    font-size: 1.05rem;
}

.hero-grid {
    margin-top: 56px;
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
}

.hero-stat,
.card,
.list-card {
    border-radius: 22px;
    border: 1px solid var(--research-border);
    background: linear-gradient(180deg, rgba(17, 24, 35, 0.94), rgba(11, 16, 23, 0.88));
    padding: 24px;
}

.hero-stat .label,
.meta-label {
    font-family: var(--research-mono);
    font-size: 11px;
    color: var(--research-accent-light);
    letter-spacing: 0.14em;
    text-transform: uppercase;
}

.hero-stat .value {
    margin-top: 12px;
    font-size: 2rem;
    font-weight: 600;
    color: var(--research-text);
}

.hero-stat p {
    margin-top: 8px;
    font-size: 0.9rem;
    color: var(--research-dim);
}

.section {
    padding: 72px 0;
    border-top: 1px solid rgba(255,255,255,0.05);
}

.section-label {
    margin-bottom: 18px;
    font-family: var(--research-mono);
    font-size: 11px;
    color: var(--research-accent-light);
    letter-spacing: 0.14em;
    text-transform: uppercase;
}

.section h2 {
    margin: 0 0 16px;
    font-size: clamp(2rem, 3vw, 3rem);
    line-height: 1.05;
    letter-spacing: -0.04em;
    font-weight: 400;
}

.section .lead {
    max-width: 760px;
    color: var(--research-muted);
}

.grid {
    margin-top: 40px;
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
}

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

.card h3,
.list-card h3 {
    margin: 0 0 10px;
    font-size: 1.15rem;
    letter-spacing: -0.03em;
}

.card p,
.list-card p {
    color: var(--research-muted);
    margin: 0;
}

.card .meta,
.list-card .meta {
    margin-top: 14px;
    color: var(--research-dim);
    font-size: 0.86rem;
}

.card-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-top: 18px;
    color: var(--research-accent-light);
    text-decoration: none;
    font-size: 0.92rem;
    font-weight: 500;
}

.card-link:hover {
    gap: 12px;
}

.signal-list {
    list-style: none;
    padding: 0;
    margin: 24px 0 0;
    display: grid;
    gap: 14px;
}

.signal-list li {
    border-left: 2px solid rgba(120, 216, 255, 0.35);
    padding-left: 16px;
    color: var(--research-muted);
}

.signal-list strong {
    color: var(--research-text);
}

.track-table {
    margin-top: 28px;
    width: 100%;
    border-collapse: collapse;
}

.track-table th,
.track-table td {
    text-align: left;
    padding: 16px 14px;
    border-bottom: 1px solid rgba(255,255,255,0.06);
    vertical-align: top;
}

.track-table th {
    font-size: 11px;
    font-family: var(--research-mono);
    color: var(--research-accent-light);
    text-transform: uppercase;
    letter-spacing: 0.14em;
}

.track-table td {
    color: var(--research-muted);
    font-size: 0.94rem;
}

.track-table strong {
    color: var(--research-text);
}

.footer {
    padding: 56px 0 72px;
    border-top: 1px solid rgba(255,255,255,0.06);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 24px;
}

.footer h4 {
    margin: 0 0 10px;
    font-size: 0.95rem;
}

.footer p,
.footer a {
    color: var(--research-muted);
    text-decoration: none;
    font-size: 0.9rem;
}

.footer a:hover {
    color: var(--research-text);
}

@media (max-width: 960px) {
    .site-header .container,
    .site-nav {
        flex-wrap: wrap;
    }

    .hero-grid,
    .grid,
    .grid.two-up,
    .footer-grid {
        grid-template-columns: 1fr;
    }

    .hero {
        padding-top: 104px;
    }
}