:root {
    --main-bg: rgb(13, 17, 28);
    --header-start: rgb(15, 31, 52);
    --card-bg: rgb(19, 19, 24);
    --text-secondary: rgb(152, 161, 192);
    --text-primary: rgb(255, 255, 255);
    --accent-pink: rgb(211, 17, 91);
    --accent-blue: rgb(15, 31, 52);
    --nav-border: rgba(211, 17, 91, 0.35);
}

@import url("https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;700&family=Inter:wght@300;400;500;600&display=swap");

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: "Inter", system-ui, sans-serif;
    line-height: 1.65;
    color: var(--text-primary);
    background-color: var(--main-bg);
    background-image:
        radial-gradient(circle at 20% 20%, rgba(211, 17, 91, 0.08) 0%, transparent 42%),
        radial-gradient(circle at 85% 60%, rgba(15, 31, 52, 0.35) 0%, transparent 40%),
        linear-gradient(160deg, var(--main-bg) 0%, var(--header-start) 45%, var(--main-bg) 100%);
    min-height: 100vh;
}

a {
    color: var(--text-primary);
}

.site-nav {
    position: sticky;
    top: 0;
    z-index: 50;
    background: rgba(13, 17, 28, 0.92);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--nav-border);
}

.site-nav .inner {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0.65rem 1.25rem;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.site-nav .brand {
    font-family: "Space Grotesk", sans-serif;
    font-weight: 700;
    font-size: 1.15rem;
    text-decoration: none;
    color: var(--text-primary);
    flex-shrink: 0;
    letter-spacing: -0.02em;
}

.site-nav .brand:hover {
    color: var(--accent-pink);
}

.site-nav .menu {
    display: flex;
    flex-wrap: nowrap;
    gap: 0.35rem 1rem;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: thin;
    flex: 1;
    justify-content: flex-end;
    mask-image: linear-gradient(to right, transparent, #000 12px, #000 calc(100% - 12px), transparent);
}

.site-nav .menu a {
    font-size: 0.9rem;
    text-decoration: none;
    color: var(--text-secondary);
    white-space: nowrap;
    padding: 0.35rem 0;
    border-bottom: 2px solid transparent;
}

.site-nav .menu a:hover {
    color: var(--text-primary);
}

.site-nav .menu a.is-active {
    color: var(--text-primary);
    border-bottom-color: var(--accent-pink);
}

.wrap {
    max-width: 900px;
    margin: 0 auto;
    padding: 2rem 1.25rem 4rem;
}

.article-hero {
    margin-bottom: 2rem;
}

.article-hero h1 {
    font-family: "Space Grotesk", sans-serif;
    font-size: clamp(1.85rem, 4vw, 2.6rem);
    font-weight: 700;
    letter-spacing: -0.03em;
    margin-bottom: 0.75rem;
    line-height: 1.15;
}

.article-hero .lede {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 42rem;
}

.article-body h2 {
    font-family: "Space Grotesk", sans-serif;
    font-size: 1.45rem;
    margin: 2rem 0 0.75rem;
    padding-bottom: 0.35rem;
    border-bottom: 2px solid var(--nav-border);
}

.article-body p {
    color: var(--text-secondary);
    margin-bottom: 1rem;
    font-size: 1.02rem;
}

.article-body ul {
    margin: 0.5rem 0 1.25rem 1.25rem;
    color: var(--text-secondary);
}

.article-body li {
    margin-bottom: 0.45rem;
}

.article-body strong {
    color: var(--text-primary);
    font-weight: 600;
}

.figure {
    margin: 1.75rem 0;
    text-align: center;
}

.figure img {
    max-width: 100%;
    height: auto;
    border-radius: 12px;
    border: 1px solid var(--nav-border);
    box-shadow: 0 18px 40px rgba(0, 0, 0, 0.35);
}

.figure figcaption {
    margin-top: 0.5rem;
    font-size: 0.88rem;
    color: var(--text-secondary);
    font-style: italic;
}

.stat-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 1rem;
    margin: 1.5rem 0;
}

.stat {
    background: rgba(19, 19, 24, 0.85);
    border: 1px solid var(--nav-border);
    border-radius: 12px;
    padding: 1rem 1.1rem;
    text-align: center;
}

.stat .num {
    font-family: "Space Grotesk", sans-serif;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
}

.stat .lbl {
    font-size: 0.82rem;
    color: var(--text-secondary);
    margin-top: 0.25rem;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.25rem;
    margin: 1.5rem 0 2rem;
}

.feature-card {
    background: rgba(19, 19, 24, 0.85);
    border: 1px solid var(--nav-border);
    border-radius: 12px;
    padding: 1.25rem 1.35rem;
}

.feature-card h3 {
    font-family: "Space Grotesk", sans-serif;
    font-size: 1.15rem;
    margin-bottom: 0.65rem;
    color: var(--text-primary);
}

.feature-card p {
    margin-bottom: 0;
    font-size: 0.98rem;
}

.cta-row {
    margin-top: 2rem;
}

.btn {
    display: inline-block;
    font-family: "Space Grotesk", sans-serif;
    font-weight: 600;
    text-decoration: none;
    padding: 0.65rem 1.35rem;
    border-radius: 999px;
    background: linear-gradient(135deg, var(--accent-pink), var(--accent-blue));
    color: var(--text-primary);
    box-shadow: 0 10px 28px rgba(211, 17, 91, 0.25);
    border: none;
    font-size: 0.95rem;
}

.btn:hover {
    filter: brightness(1.08);
}

.btn-secondary {
    background: transparent;
    border: 1px solid var(--nav-border);
    box-shadow: none;
    margin-left: 0.5rem;
}

.site-footer {
    max-width: 1100px;
    margin: 0 auto;
    padding: 1.5rem 1.25rem 2.5rem;
    font-size: 0.85rem;
    color: var(--text-secondary);
    border-top: 1px solid var(--nav-border);
}

@media (max-width: 640px) {
    .site-nav .inner {
        flex-wrap: wrap;
    }

    .site-nav .menu {
        justify-content: flex-start;
        width: 100%;
        padding-bottom: 0.25rem;
    }
}