:root {
    --bg-main: #060913;
    --bg-surface: rgba(30, 41, 59, 0.4);
    --bg-surface-hover: rgba(30, 41, 59, 0.6);
    --accent-primary: #3b82f6;
    --accent-glow: #06b6d4;
    --accent-success: #10b981;
    --accent-danger: #ef4444;
    --text-heading: #ffffff;
    --text-body: #94a3b8;
    --text-muted: #64748b;
    --glass-border: rgba(255, 255, 255, 0.05);
    --glass-border-hover: rgba(6, 182, 212, 0.3);
}
* { box-sizing: border-box; }
body {
    font-family: '-apple-system', BlinkMacSystemFont, 'SF Pro Display', 'Segoe UI', Roboto, sans-serif;
    background-color: var(--bg-main);
    background-image:
        radial-gradient(circle at 10% 20%, rgba(59, 130, 246, 0.05) 0%, transparent 40%),
        radial-gradient(circle at 90% 80%, rgba(6, 182, 212, 0.05) 0%, transparent 40%);
    color: var(--text-body);
    margin: 0; padding: 0;
    -webkit-font-smoothing: antialiased;
    display: flex; flex-direction: column; min-height: 100vh;
}
main { flex: 1; }
a { color: var(--accent-glow); }
.glass-card {
    background: var(--bg-surface); border: 1px solid var(--glass-border);
    border-radius: 20px; padding: 35px; backdrop-filter: blur(16px);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.4);
}
header {
    background: rgba(6, 9, 19, 0.7); border-bottom: 1px solid var(--glass-border);
    padding: 20px 0; position: sticky; top: 0; backdrop-filter: blur(20px); z-index: 1000;
}
.header-inner { max-width:1320px; margin:0 auto; width:100%; padding:0 40px; box-sizing:border-box; display:flex; justify-content:space-between; align-items:center; }
.logo-box { font-size: 20px; font-weight: 900; letter-spacing: 3px; color: #ffffff; border-left: 3px solid var(--accent-glow); padding-left: 12px; text-shadow: 0 0 15px rgba(6, 182, 212, 0.5); cursor: pointer; }
.lang-switcher button { background: rgba(255, 255, 255, 0.03); border: 1px solid var(--glass-border); color: var(--text-body); padding: 8px 16px; border-radius: 8px; cursor: pointer; font-weight: 700; font-size: 12px; margin-left: 8px; }
.lang-switcher button.active { border-color: var(--accent-glow); color:#fff; }
.premium-btn {
    background: rgba(255, 255, 255, 0.03);
    color: #ffffff; border: 1px solid var(--glass-border);
    padding: 14px 28px; font-size: 14px; font-weight: 600; border-radius: 10px;
    cursor: pointer; transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    text-transform: uppercase; letter-spacing: 1px;
    box-shadow: none;
    display: inline-flex; align-items: center; justify-content: center;
    text-decoration: none;
}
.premium-btn:hover {
    transform: translateY(-2px);
    background: rgba(255, 255, 255, 0.07);
    border-color: var(--accent-glow);
    box-shadow: 0 4px 20px rgba(6, 182, 212, 0.15);
}
header .premium-btn { padding: 10px 20px; font-size: 12px; letter-spacing: 1px; }
.header-nav-link { color: var(--text-body); text-decoration:none; font-size:16px; font-weight:600; padding:8px 14px; border-radius:8px; transition:all 0.2s; white-space:nowrap; }
.header-nav-link:hover { color:#fff; background:rgba(255,255,255,0.04); }
.header-nav-link.active { color:#fff; background:rgba(59,130,246,0.12); }
@media (max-width: 768px) {
    header nav { display:none; }
    header .premium-btn { padding: 7px 12px; font-size: 11px; letter-spacing: 0; white-space: nowrap; }
}

/* ── Футер — точные правила из главной страницы (иначе растягивается на всю ширину) ── */
.site-footer {
    background-color: #0b0f19;
    color: #9ca3af;
    padding: 56px 0 28px;
    font-family: sans-serif;
    font-size: 13px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}
.footer-content {
    max-width: 1320px;
    margin: 0 auto;
    padding: 0 40px;
    box-sizing: border-box;
}
.footer-links {
    list-style: none;
    display: flex;
    gap: 20px;
    margin: 0;
    padding: 0;
}
.footer-links a { color: #9ca3af; text-decoration: none; transition: color 0.2s ease; }
.footer-links a:hover { color: #34d399; }
@media (max-width: 768px) {
    .footer-grid-layout { grid-template-columns: 1fr !important; grid-template-rows: auto !important; }
    .footer-grid-layout > div { grid-column: 1 !important; grid-row: auto !important; }
}

/* ── Стили самой статьи ───────────────────────────────────────────────── */
.article-wrap { max-width: 1320px; margin: 0 auto; padding: 60px 40px 100px; }
.back-link {
    display:inline-flex; align-items:center; gap:6px;
    color:#e2e8f0; text-decoration:none; font-weight:600; font-size:13px;
    background:rgba(255,255,255,0.04); border:1px solid var(--glass-border);
    border-radius:10px; padding:12px 24px; margin-bottom:24px;
    transition:all 0.2s;
}
.back-link:hover { border-color:var(--accent-glow); color:#fff; }
.back-link:hover { color: var(--accent-glow); }
.article-meta { font-size:12px; color: var(--text-muted); text-transform:uppercase; letter-spacing:1px; margin-bottom:14px; }
.article-title { font-size:36px; font-weight:900; color:#fff; line-height:1.2; margin:0 0 18px; }
.article-lead { font-size:17px; color: var(--text-body); line-height:1.7; margin:0 0 40px; }
.article-body h2 { font-size:23px; font-weight:800; color:#fff; margin:44px 0 16px; }
.article-body h3 { font-size:18px; font-weight:700; color:#e2e8f0; margin:28px 0 12px; }
.article-body p { font-size:15px; line-height:1.8; color: var(--text-body); margin:0 0 16px; }
.article-body ul, .article-body ol { font-size:15px; line-height:1.8; color: var(--text-body); padding-left:22px; margin:0 0 16px; }
.article-body li { margin-bottom:8px; }
.article-body strong { color:#e2e8f0; }
.callout {
    border-radius: 14px; padding: 18px 22px; margin: 28px 0;
    border: 1px solid; font-size: 14px; line-height: 1.7;
}
.callout-warning { background: rgba(245,158,11,0.06); border-color: rgba(245,158,11,0.3); color: #fcd34d; }
.callout-info { background: rgba(59,130,246,0.06); border-color: rgba(59,130,246,0.3); color: #93c5fd; }
.callout-disclaimer { background: rgba(255,255,255,0.03); border-color: var(--glass-border); color: var(--text-muted); font-size:13px; }
.related-articles { display:grid; grid-template-columns:1fr 1fr; gap:16px; margin-top:50px; }
.related-card { background: var(--bg-surface); border:1px solid var(--glass-border); border-radius:14px; padding:18px 20px; text-decoration:none; transition:border-color 0.2s; }
.related-card:hover { border-color: var(--glass-border-hover); }
.related-card-label { font-size:11px; color:var(--text-muted); text-transform:uppercase; letter-spacing:1px; margin-bottom:6px; }
.related-card-title { font-size:14px; color:#e2e8f0; font-weight:700; }
@media (max-width: 768px) {
    .header-inner { padding:0 16px; }
    .article-wrap { padding:40px 20px 60px; }
    .article-title { font-size:28px; }
    .related-articles { grid-template-columns:1fr; }
}