@import url('https://fonts.googleapis.com/css2?family=Inter:wght@700;900&family=Roboto:wght@400;700&display=swap');

body {
    font-family: 'Roboto', sans-serif;
    color: #374151;
    background-color: #ffffff;
}

h1, h2, h3, h4 {
    font-family: 'Inter', sans-serif;
    color: #111827;
}

.blog-article {
    max-width: 800px;
    margin: 0 auto;
}

.blog-article h2 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-top: 2.5rem;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid #e5e7eb;
}

.blog-article h3 {
    font-size: 1.2rem;
    font-weight: 700;
    margin-top: 1.75rem;
    margin-bottom: 0.75rem;
    color: #4b5563;
}

.blog-article p {
    margin-bottom: 1rem;
    line-height: 1.75;
}

.blog-article ul, .blog-article ol {
    margin: 0 0 1.25rem 1.5rem;
    line-height: 1.75;
}

.blog-article li {
    margin-bottom: 0.5rem;
}

.blog-toc {
    background: #f3f4f6;
    border: 1px solid #d1d5db;
    border-radius: 8px;
    padding: 1.5rem;
    margin-bottom: 2rem;
}

.blog-toc h2 {
    font-size: 1.1rem;
    margin-top: 0;
    margin-bottom: 0.75rem;
    border: none;
    padding: 0;
}

.blog-toc ul {
    margin: 0;
    list-style: none;
}

.blog-toc li {
    margin-bottom: 0.35rem;
}

.blog-toc a {
    color: #4b5563;
    text-decoration: none;
}

.blog-toc a:hover {
    color: #111827;
    text-decoration: underline;
}

.tip-box {
    background: #f9fafb;
    border-left: 4px solid #6b7280;
    padding: 1rem 1.25rem;
    margin: 1.5rem 0;
    border-radius: 0 6px 6px 0;
}

.warn-box {
    background: #fef3c7;
    border-left: 4px solid #d97706;
    padding: 1rem 1.25rem;
    margin: 1.5rem 0;
    border-radius: 0 6px 6px 0;
}

.brand-section {
    background: #f3f4f6;
    border: 1px solid #e5e7eb;
    border-radius: 8px;
    padding: 1.5rem;
    margin: 1.5rem 0;
}

.blog-cta {
    background: linear-gradient(135deg, #f3f4f6 0%, #e5e7eb 100%);
    border-radius: 8px;
    padding: 2rem;
    text-align: center;
    margin-top: 3rem;
}

.related-links {
    display: grid;
    gap: 1rem;
    margin-top: 2rem;
}

@media (min-width: 640px) {
    .related-links {
        grid-template-columns: 1fr 1fr;
    }
}

.related-card {
    display: block;
    padding: 1rem 1.25rem;
    background: #fff;
    border: 1px solid #d1d5db;
    border-radius: 8px;
    text-decoration: none;
    color: inherit;
    transition: box-shadow 0.2s, border-color 0.2s;
}

.related-card:hover {
    border-color: #9ca3af;
    box-shadow: 0 4px 12px rgba(0,0,0,0.06);
}

.related-card strong {
    display: block;
    color: #111827;
    margin-bottom: 0.25rem;
}

.related-card span {
    font-size: 0.9rem;
    color: #6b7280;
}