/* ============================================================
   Wiserfolio Blog — self-contained stylesheet
   Used only by pages in /blog/. Includes theme tokens, nav,
   footer, and article styles so blog pages need nothing else.
   ============================================================ */
:root {
    --brand: #2ee687;
    --brand-dark: #25c873;
    --brand-light: rgba(46,230,135,0.14);
    --brand-50: rgba(46,230,135,0.07);
    --gray-50: #070b14;
    --gray-100: #0d1424;
    --gray-200: #1c2740;
    --gray-300: #2a3550;
    --gray-400: #5d6b8c;
    --gray-500: #8493b5;
    --gray-600: #a6b2cd;
    --gray-700: #c4cde0;
    --gray-800: #dde3f0;
    --gray-900: #e9edf7;
    --font-sans: 'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'IBM Plex Mono', 'Menlo', monospace;
    --font-display: 'Instrument Serif', Georgia, serif;
    --radius: 14px;
    --radius-sm: 9px;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
    font-family: var(--font-sans);
    background: var(--gray-100);
    color: var(--gray-900);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
.container { max-width: 1100px; margin: 0 auto; padding: 0 24px; }

/* ---- Nav ---- */
.nav { background: rgba(7,11,20,0.85); backdrop-filter: blur(10px); border-bottom: 1px solid var(--gray-200); position: sticky; top: 0; z-index: 50; }
.nav-inner { max-width: 1100px; margin: 0 auto; padding: 14px 24px; display: flex; align-items: center; justify-content: space-between; }
.brand { display: flex; align-items: center; gap: 9px; }
.brand-name { font-weight: 700; font-size: 18px; letter-spacing: -0.5px; color: var(--gray-900); }
.btn-primary { background: var(--brand); color: #04230f; font-weight: 600; border: none; border-radius: var(--radius-sm); cursor: pointer; transition: background .2s; }
.btn-primary:hover { background: var(--brand-dark); }
.btn-sm { padding: 9px 16px; font-size: 14px; }
.btn-lg { padding: 14px 26px; font-size: 16px; display: inline-block; }

/* ---- Footer ---- */
.footer { background: #070b14; color: var(--gray-600); padding: 64px 0 32px; border-top: 1px solid var(--gray-200); margin-top: 80px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 32px; margin-bottom: 40px; }
.footer-brand p { font-size: 14px; margin-top: 12px; max-width: 280px; line-height: 1.6; }
.footer-col h5 { font-size: 13px; text-transform: uppercase; letter-spacing: 1px; color: var(--gray-500); margin-bottom: 14px; font-family: var(--font-mono); }
.footer-col a { display: block; font-size: 14px; margin-bottom: 10px; color: var(--gray-600); transition: color .2s; }
.footer-col a:hover { color: var(--brand); }
.footer-bottom { border-top: 1px solid var(--gray-200); padding-top: 24px; font-size: 13px; color: var(--gray-500); }

/* ---- Blog index ---- */
.blog-wrap { max-width: 760px; margin: 0 auto; padding: 56px 24px 40px; }
.blog-eyebrow { font-family: var(--font-mono); font-size: 12px; letter-spacing: 2px; text-transform: uppercase; color: var(--brand); font-weight: 600; }
.blog-wrap h1 { font-size: clamp(30px,5vw,44px); font-weight: 700; letter-spacing: -1.2px; margin: 14px 0 12px; color: var(--gray-900); }
.blog-intro { font-size: 17px; color: var(--gray-600); line-height: 1.6; }
.blog-list { display: grid; gap: 18px; margin-top: 36px; }
.blog-card { background: var(--gray-100); border: 1px solid var(--gray-200); border-radius: var(--radius); padding: 24px 26px; display: block; transition: border-color .2s, transform .2s; }
.blog-card:hover { border-color: var(--brand); transform: translateY(-2px); }
.blog-card .blog-cat { font-family: var(--font-mono); font-size: 11px; letter-spacing: 1.4px; text-transform: uppercase; color: var(--brand); }
.blog-card h2 { font-size: 20px; margin: 8px 0 6px; color: var(--gray-900); }
.blog-card p { font-size: 14.5px; color: var(--gray-600); margin: 0; }
.blog-card .blog-date { font-size: 13px; color: var(--gray-500); margin-top: 10px; display: block; }

/* ---- Article (post) ---- */
.post { max-width: 720px; margin: 0 auto; padding: 48px 24px 40px; }
.post-back { font-size: 14px; color: var(--gray-500); display: inline-block; margin-bottom: 24px; }
.post-back:hover { color: var(--brand); }
.post-cat { font-family: var(--font-mono); font-size: 12px; letter-spacing: 1.6px; text-transform: uppercase; color: var(--brand); font-weight: 600; }
.post h1 { font-size: clamp(28px,5vw,40px); font-weight: 700; letter-spacing: -1.2px; line-height: 1.12; margin: 14px 0 14px; color: var(--gray-900); }
.post-meta { font-size: 14px; color: var(--gray-500); margin-bottom: 28px; display: flex; gap: 14px; align-items: center; }
.post-meta .dot { width: 3px; height: 3px; border-radius: 50%; background: var(--gray-400); }
.post-hero { width: 100%; aspect-ratio: 16/8; border-radius: var(--radius); overflow: hidden; margin-bottom: 36px; border: 1px solid var(--gray-200); background: linear-gradient(135deg, var(--gray-100), #0a1424); display: flex; align-items: center; justify-content: center; }
.post-hero img { width: 100%; height: 100%; object-fit: cover; display: block; }
.post-hero-placeholder { color: var(--gray-500); font-size: 13px; font-family: var(--font-mono); letter-spacing: 1px; }
.post-lead { font-size: 18px; line-height: 1.6; color: var(--gray-700); margin-bottom: 28px; }
.post p, .post li { font-size: 16px; line-height: 1.75; color: var(--gray-600); }
.post p { margin-bottom: 18px; }
.post h2 { font-size: 24px; font-weight: 700; letter-spacing: -0.5px; color: var(--gray-900); margin: 40px 0 14px; }
.post h3 { font-size: 19px; font-weight: 600; color: var(--gray-800); margin: 28px 0 10px; }
.post ul, .post ol { margin: 0 0 18px; padding-left: 22px; }
.post li { margin-bottom: 9px; }
.post strong { color: var(--gray-900); }
.post em { color: var(--gray-700); }
.post a { color: var(--brand); }
.post a:hover { text-decoration: underline; }
/* Button text must stay dark inside .post (which colors links green = invisible on green button) */
.post a.btn-primary, .post a.btn-primary:hover { color: #04230f; text-decoration: none; }
.post figure { margin: 32px 0; }
.post figure svg { width: 100%; height: auto; display: block; border-radius: var(--radius); border: 1px solid var(--gray-200); background: var(--gray-100); }
.post figcaption { font-size: 13px; color: var(--gray-500); text-align: center; margin-top: 10px; font-style: italic; }
.post-callout { background: var(--brand-light); border-left: 3px solid var(--brand); border-radius: 8px; padding: 18px 20px; margin: 28px 0; }
.post-callout p { margin: 0; color: var(--gray-800); font-size: 15.5px; }
.post-cta { background: var(--gray-100); border: 1px solid var(--gray-200); border-radius: var(--radius); padding: 32px; text-align: center; margin: 44px 0 0; }
.post-cta h3 { margin: 0 0 8px; color: var(--gray-900); }
.post-cta p { margin: 0 0 18px; color: var(--gray-600); font-size: 15px; }

@media (max-width: 700px) {
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 24px; }
}