:root {
    --blog-ink: #172033;
    --blog-muted: #647084;
    --blog-line: #dfe5e9;
    --blog-surface: #f6f8f7;
    --blog-green: #2bc46a;
    --blog-green-deep: #16874a;
}

body.menu-open { overflow: hidden; }
.skip-link {
    position: fixed; top: -80px; left: 16px; z-index: 2000;
    padding: 11px 16px; border-radius: 10px; background: var(--dark); color: #fff;
    font-weight: 700; text-decoration: none; transition: top .2s;
}
.skip-link:focus { top: 16px; }
.header { box-shadow: none; }
.nav a { position: relative; padding: 8px 0; }
.nav a::after {
    content: ""; position: absolute; right: 0; bottom: 2px; left: 0; height: 2px;
    background: var(--green); transform: scaleX(0); transform-origin: right; transition: transform .22s ease;
}
.nav a:hover::after, .nav a[aria-current="page"]::after { transform: scaleX(1); transform-origin: left; }
.nav a[aria-current="page"] { font-weight: 750; }
.menu-toggle {
    display: none; width: 44px; height: 44px; border: 1px solid var(--gray-border); border-radius: 12px;
    background: #fff; color: var(--dark); cursor: pointer; align-items: center; justify-content: center;
}
.menu-toggle span, .menu-toggle::before, .menu-toggle::after {
    content: ""; display: block; width: 20px; height: 2px; border-radius: 2px; background: currentColor;
    transition: transform .2s, opacity .2s;
}
.menu-toggle span { margin: 4px 0; }
.menu-toggle[aria-expanded="true"] span { opacity: 0; }
.menu-toggle[aria-expanded="true"]::before { transform: translateY(6px) rotate(45deg); }
.menu-toggle[aria-expanded="true"]::after { transform: translateY(-6px) rotate(-45deg); }
.mobile-menu { display: none; }

.page-hero { position: relative; overflow: hidden; padding-bottom: 56px; text-align: left; }
.page-hero::after {
    content: ""; position: absolute; width: 300px; height: 300px; right: max(5vw, 24px); bottom: -210px;
    border: 54px solid rgba(54,218,119,.18); border-radius: 50%; pointer-events: none;
}
.page-hero h1, .page-hero p { margin-left: 0; margin-right: 0; }
.page-hero h1 { max-width: 900px; letter-spacing: -.035em; line-height: 1.08; }
.page-hero p { max-width: 680px; font-size: clamp(16px, 2vw, 19px); }
.hero-kicker {
    display: inline-flex; align-items: center; gap: 8px; margin-bottom: 14px; color: var(--blog-green-deep);
    font-size: 13px; font-weight: 800; letter-spacing: .08em; text-transform: uppercase;
}
.hero-kicker::before { content: ""; width: 24px; height: 2px; background: var(--green); }
.blog-topics { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 24px; }
.blog-topics a {
    padding: 8px 13px; border: 1px solid rgba(23,32,51,.12); border-radius: 999px; background: rgba(255,255,255,.7);
    color: var(--dark); font-size: 13px; font-weight: 650; text-decoration: none;
}
.blog-topics a:hover { border-color: var(--green); background: #fff; }

.breadcrumb { display: flex; flex-wrap: wrap; gap: 7px; align-items: center; }
.breadcrumb [aria-current="page"] { color: var(--dark); }
.blog-grid { align-items: stretch; }
.blog-card { position: relative; min-height: 260px; overflow: hidden; }
.blog-card::before {
    content: attr(data-index); position: absolute; right: 22px; top: 16px; color: #e8eceb;
    font-size: 52px; line-height: 1; font-weight: 800; letter-spacing: -.08em;
}
.blog-card > * { position: relative; z-index: 1; }
.blog-card:first-child { grid-column: 1 / -1; min-height: 300px; padding: 36px; background: var(--dark); border-color: var(--dark); }
.blog-card:first-child h2 { max-width: 720px; color: #fff; font-size: clamp(24px, 4vw, 36px); }
.blog-card:first-child p { max-width: 680px; color: rgba(255,255,255,.68); font-size: 16px; }
.blog-card:first-child .blog-card-more { color: var(--green); }
.blog-card:first-child::before { color: rgba(255,255,255,.07); font-size: 110px; }
.blog-card:hover { border-color: rgba(43,196,106,.55); }
.blog-card:focus-visible { outline: 3px solid var(--green); outline-offset: 4px; }
.blog-card-meta { margin-top: 10px; color: var(--gray-muted); font-size: 12px; }
.blog-card:first-child .blog-card-meta { color: rgba(255,255,255,.48); }

.article { padding-top: 20px; }
.article .container { max-width: 860px; }
.article-meta { display: flex; flex-wrap: wrap; gap: 8px 18px; align-items: center; color: var(--blog-muted); font-size: 14px; }
.article-meta span { display: inline-flex; align-items: center; gap: 7px; }
.article-meta span + span::before { content: ""; width: 4px; height: 4px; border-radius: 50%; background: var(--green); }
.article-lead { margin-bottom: 26px; color: var(--dark) !important; font-size: clamp(18px, 2.3vw, 21px) !important; line-height: 1.62 !important; }
.article-toc {
    margin: 24px 0 34px; padding: 22px 24px; border: 1px solid var(--blog-line); border-radius: 16px;
    background: var(--blog-surface);
}
.article-toc strong { display: block; margin-bottom: 12px; font-size: 15px; }
.article-toc ol { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 8px 24px; margin: 0; padding-left: 20px; }
.article-toc li { margin: 0; color: var(--blog-muted); }
.article-toc a { color: var(--dark); text-decoration-thickness: 1px; text-underline-offset: 3px; }
.article h2 { scroll-margin-top: 100px; letter-spacing: -.02em; line-height: 1.2; }
.article p, .article li { max-width: 72ch; }
.article table { display: block; overflow-x: auto; -webkit-overflow-scrolling: touch; }
.callout { border-left-width: 0; border-top: 4px solid var(--green); border-radius: 14px; }
.related-reading { padding: 8px 0 64px; }
.related-reading .container { max-width: 860px; }
.related-reading h2 { margin-bottom: 18px; font-size: clamp(22px, 3vw, 30px); letter-spacing: -.025em; }
.related-grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 14px; }
.related-link {
    display: flex; flex-direction: column; min-height: 150px; padding: 20px; border: 1px solid var(--blog-line);
    border-radius: 14px; color: var(--dark); text-decoration: none; transition: border-color .2s, transform .2s;
}
.related-link small { margin-bottom: 8px; color: var(--blog-green-deep); font-weight: 750; }
.related-link strong { line-height: 1.35; }
.related-link span { margin-top: auto; padding-top: 14px; color: var(--blog-muted); font-size: 13px; }
.related-link:hover { transform: translateY(-2px); border-color: var(--green); }

.cta-form-section { background: var(--blog-surface); }
.cta-form-card { border: 1px solid var(--blog-line); box-shadow: none; }
.form-consent { display: grid; grid-template-columns: 20px 1fr; gap: 10px; align-items: start; margin-top: 16px; color: var(--gray); font-size: 12px; line-height: 1.55; text-align: left; cursor: pointer; }
.form-consent input { width: 18px; height: 18px; margin-top: 1px; accent-color: var(--green-dark); cursor: pointer; }
.form-consent a { color: var(--gray); }
.cta-submit-btn:disabled { background: #aeb8b3; color: #f7f8f8; cursor: not-allowed; transform: none; box-shadow: none; }
.form-status { min-height: 22px; margin-top: 12px; color: var(--gray); font-size: 13px; text-align: center; }
.form-status[data-state="success"] { color: var(--blog-green-deep); }
.form-status[data-state="error"] { color: #a43232; }

.footer { padding: 56px 0 28px; }
.footer-inner { display: grid; grid-template-columns: 1.4fr repeat(3,1fr); gap: 42px; padding-bottom: 34px; }
.footer-brand .logo { color: #fff; margin-bottom: 14px; }
.footer-brand p { max-width: 280px; color: rgba(255,255,255,.58); font-size: 14px; }
.footer-col h2 { margin-bottom: 14px; color: #fff; font-size: 15px; }
.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 9px; }
.footer-col a { color: rgba(255,255,255,.65); font-size: 14px; text-decoration: none; }
.footer-col a:hover { color: var(--green); }
.footer-bottom { display: flex; justify-content: space-between; gap: 20px; padding-top: 24px; border-top: 1px solid rgba(255,255,255,.1); color: rgba(255,255,255,.46); font-size: 12px; }
.footer-legal { display: flex; flex-wrap: wrap; gap: 16px; }
.footer-legal a { color: rgba(255,255,255,.62); }

@media (max-width: 900px) {
    .header-right .btn { display: none; }
    .menu-toggle { display: inline-flex; flex-direction: column; }
    .mobile-menu {
        position: fixed; inset: 71px 0 auto; z-index: 999; display: grid; gap: 4px; padding: 16px 20px 24px;
        background: #fff; border-bottom: 1px solid var(--gray-border); box-shadow: 0 18px 40px rgba(0,0,0,.1);
        opacity: 0; visibility: hidden; transform: translateY(-10px); transition: opacity .2s, transform .2s, visibility .2s;
    }
    .mobile-menu.active { opacity: 1; visibility: visible; transform: translateY(0); }
    .mobile-menu a { padding: 12px 10px; border-radius: 10px; color: var(--dark); font-weight: 650; text-decoration: none; }
    .mobile-menu a:hover, .mobile-menu a[aria-current="page"] { background: var(--green-subtle); color: var(--blog-green-deep); }
    .mobile-menu .phone-mobile { margin-top: 8px; border-top: 1px solid var(--gray-border); border-radius: 0; }
    .footer-inner { grid-template-columns: repeat(2,1fr); }
}

@media (max-width: 640px) {
    .container { padding-right: 16px; padding-left: 16px; }
    .header-inner { padding: 12px 16px; }
    .header-phone { display: none; }
    .page-hero { padding-top: 112px; padding-bottom: 40px; }
    .page-hero::after { display: none; }
    .blog-grid { gap: 14px; padding-top: 22px; }
    .blog-card, .blog-card:first-child { grid-column: auto; min-height: 0; padding: 22px; }
    .blog-card:first-child h2 { font-size: 24px; }
    .blog-card::before { font-size: 40px; }
    .article-toc ol { grid-template-columns: 1fr; }
    .article h2 { margin-top: 30px; }
    .related-grid { grid-template-columns: 1fr; }
    .cta-form-section { padding: 40px 16px; }
    .cta-form-card { padding: 28px 20px; }
    .footer-inner { grid-template-columns: 1fr; gap: 28px; }
    .footer-bottom { flex-direction: column; }
}

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