:root { --max: 900px; }
body { font-family: system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif; line-height: 1.6; margin: 0 auto; padding: 2rem 1rem; max-width: var(--max); }
h1, h2, h3 { line-height: 1.25; }
.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 1rem; margin: 1rem 0 2rem; }
.card { display: block; border: 1px solid #e5e5e5; padding: 1rem; border-radius: 12px; text-decoration: none; color: inherit; transition: transform .05s ease-in, box-shadow .1s ease-in; }
.card:hover { transform: translateY(-2px); box-shadow: 0 6px 24px rgba(0,0,0,.06); }
.card h3 { margin-top: 0; margin-bottom: .25rem; }
.card p { margin: 0 0 .5rem 0; }
.cta { font-weight: 600; }
blockquote { border-left: 4px solid #e5e5e5; padding-left: 0.75rem; color: #444; }
code, pre { background: #f8f8f8; border-radius: 6px; }
pre { padding: 1rem; overflow: auto; }
table { border-collapse: collapse; width: 100%; }
th, td { border: 1px solid #e5e5e5; padding: .5rem .6rem; text-align: left; }
hr { border: none; height: 1px; background: #eee; margin: 2rem 0; }
footer { margin-top: 3rem; font-size: 0.9rem; color: #666; }