/* Shared styles for blog and tools pages. Matches the homepage palette. */
:root {
    --primary: #0f172a;
    --secondary: #2563eb;
    --text: #334155;
    --muted: #64748b;
    --light-bg: #f8fafc;
    --border: #e2e8f0;
    --white: #ffffff;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif; line-height: 1.7; color: var(--text); background: var(--white); }
a { color: var(--secondary); }

header { background: var(--white); border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 100; }
.nav-container { max-width: 1100px; margin: 0 auto; display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; padding: 1rem 2rem; gap: 1rem; }
.logo { font-size: 1.5rem; font-weight: 700; color: var(--primary); text-decoration: none; letter-spacing: -0.02em; }
nav { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 0.25rem 1.5rem; }
nav a { color: var(--text); text-decoration: none; font-weight: 500; font-size: 0.95rem; }
nav a:hover, nav a.active { color: var(--secondary); }

.page-head { background: var(--light-bg); border-bottom: 1px solid var(--border); padding: 3rem 2rem 2.5rem; }
.page-head-inner { max-width: 760px; margin: 0 auto; }
.page-head h1 { color: var(--primary); font-size: 2.3rem; line-height: 1.2; margin-bottom: 0.75rem; }
.page-head p { color: var(--muted); font-size: 1.1rem; }
.meta { font-size: 0.85rem; color: var(--muted); margin-top: 1rem; }

.content { max-width: 760px; margin: 0 auto; padding: 2.5rem 2rem 3rem; }
.content h2 { color: var(--primary); font-size: 1.5rem; margin: 2.25rem 0 0.75rem; line-height: 1.3; }
.content h3 { color: var(--primary); font-size: 1.15rem; margin: 1.5rem 0 0.5rem; }
.content p { margin-bottom: 1rem; }
.content ul, .content ol { margin: 0 0 1rem 1.3rem; }
.content li { margin-bottom: 0.4rem; }
.content blockquote { border-left: 4px solid var(--secondary); background: var(--light-bg); padding: 1rem 1.25rem; margin: 1.5rem 0; border-radius: 0 8px 8px 0; }

.disclosure { font-size: 0.85rem; color: var(--muted); background: var(--light-bg); border: 1px solid var(--border); border-radius: 8px; padding: 0.75rem 1rem; margin-bottom: 1.5rem; }

.table-wrap { overflow-x: auto; margin: 1.25rem 0 1.5rem; }
table { width: 100%; border-collapse: collapse; min-width: 520px; }
th, td { padding: 0.7rem 0.9rem; border: 1px solid var(--border); text-align: left; vertical-align: top; font-size: 0.95rem; }
th { background: var(--primary); color: var(--white); }
td:first-child { font-weight: 600; color: var(--primary); }

.btn { display: inline-block; background: var(--secondary); color: var(--white); padding: 0.7rem 1.3rem; border-radius: 6px; text-decoration: none; font-weight: 600; margin: 0.25rem 0.5rem 0.25rem 0; }
.btn:hover { background: #1d4ed8; }
.btn.secondary { background: var(--white); color: var(--secondary); border: 1px solid var(--secondary); }

.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 1.5rem; margin-top: 1.5rem; }
.card { border: 1px solid var(--border); border-radius: 8px; padding: 1.75rem; background: var(--white); display: flex; flex-direction: column; }
.card h2, .card h3 { color: var(--primary); font-size: 1.25rem; margin: 0 0 0.5rem; }
.card p { font-size: 0.95rem; margin-bottom: 0.75rem; }
.card .card-foot { margin-top: auto; }
.tag { display: inline-block; background: #e0e7ff; color: #3730a3; padding: 0.2rem 0.5rem; border-radius: 4px; font-size: 0.75rem; font-weight: 600; margin-bottom: 0.6rem; width: fit-content; text-transform: uppercase; letter-spacing: 0.03em; }
.card a.title-link { color: var(--primary); text-decoration: none; }
.card a.title-link:hover { color: var(--secondary); }

.cta-box { border: 1px solid var(--border); border-left: 4px solid var(--secondary); border-radius: 8px; background: var(--light-bg); padding: 1.5rem; margin: 2rem 0; }
.cta-box h3 { margin-top: 0; }

footer { background: var(--primary); color: #94a3b8; padding: 3rem 2rem 1.5rem; margin-top: 3rem; font-size: 0.9rem; }
.footer-container { max-width: 1100px; margin: 0 auto; display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 2rem; margin-bottom: 2rem; }
.footer-col h4 { color: var(--white); margin-bottom: 1rem; }
.footer-col ul { list-style: none; }
.footer-col ul li { margin-bottom: 0.5rem; }
.footer-col a { color: #94a3b8; text-decoration: none; }
.footer-col a:hover { color: var(--white); }
.copyright { max-width: 1100px; margin: 0 auto; padding-top: 1.5rem; border-top: 1px solid #334155; text-align: center; font-size: 0.85rem; }

@media (max-width: 600px) {
    .nav-container, .content, .page-head { padding-left: 1rem; padding-right: 1rem; }
    nav { gap: 0.25rem 0.9rem; }
    nav a { font-size: 0.85rem; }
    .page-head h1 { font-size: 1.8rem; }
}