:root {
    --bg: #f7f9fc;
    --panel: #ffffff;
    --ink: #1e293b;
    --muted: #64748b;
    --brand: #0f4bbf;
    --brand-soft: #dbeafe;
    --line: #e2e8f0;
    --accent: #f59e0b;
}

* {
    box-sizing: border-box;
}

html, body {
    margin: 0;
    padding: 0;
    font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
    color: var(--ink);
    background: radial-gradient(circle at 20% 0%, #e0f2fe, transparent 32%), var(--bg);
    line-height: 1.65;
}

a {
    color: var(--brand);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

.site-header {
    border-bottom: 1px solid var(--line);
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(8px);
    position: sticky;
    top: 0;
    z-index: 10;
}

.site-header-inner {
    max-width: 980px;
    margin: 0 auto;
    padding: 14px 18px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
}

.brand {
    font-weight: 700;
    color: #0b3a92;
}

.nav-links {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    font-size: 14px;
}

.container {
    max-width: 980px;
    margin: 0 auto;
    padding: 24px 18px 48px;
}

.hero {
    background: linear-gradient(130deg, #0f4bbf, #1d4ed8 60%, #1e40af);
    border-radius: 18px;
    color: white;
    padding: 26px;
    margin-bottom: 20px;
    box-shadow: 0 10px 30px rgba(15, 75, 191, 0.2);
}

.hero h1 {
    margin-top: 0;
    margin-bottom: 8px;
    line-height: 1.2;
}

.hero p {
    margin: 0;
    opacity: 0.95;
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 14px;
}

.card {
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 14px;
    padding: 16px;
}

.card h2, .card h3 {
    margin-top: 0;
    margin-bottom: 8px;
    line-height: 1.3;
}

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

.kicker {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 999px;
    background: var(--brand-soft);
    color: #1e3a8a;
    font-weight: 600;
    font-size: 12px;
    margin-bottom: 8px;
}

.content {
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 14px;
    padding: 20px;
}

.content h2 {
    margin-top: 0;
    line-height: 1.3;
}

.meta {
    color: var(--muted);
    font-size: 14px;
}

ol li, ul li {
    margin-bottom: 8px;
}

.cta {
    display: inline-block;
    margin-top: 12px;
    background: var(--accent);
    color: #111827;
    padding: 10px 14px;
    border-radius: 10px;
    font-weight: 700;
}

.site-footer {
    margin-top: 24px;
    color: var(--muted);
    font-size: 14px;
}

.breadcrumbs {
    font-size: 13px;
    color: var(--muted);
    margin-bottom: 10px;
}

@media (max-width: 700px) {
    .site-header-inner {
        align-items: flex-start;
        flex-direction: column;
    }

    .hero {
        padding: 20px;
    }
}