* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif; line-height: 1.6; color: #333; background: #fff; }
a { color: #2196F3; transition: color 0.3s; }
a:hover { color: #1976D2; }
.site-header { position: sticky; top: 0; z-index: 1000; }
.navbar-brand { font-weight: 700; font-size: 1.5rem; }
.nav-link { font-weight: 500; }
.card { transition: transform 0.2s, box-shadow 0.2s; border: none; }
.card:hover { transform: translateY(-2px); box-shadow: 0 5px 20px rgba(0,0,0,0.1) !important; }
.card-img-top { border-radius: 8px 8px 0 0; }
.ad-container { overflow: hidden; }
.section-title { position: relative; padding-bottom: 10px; }
.section-title:after { content: ''; position: absolute; bottom: 0; left: 0; width: 50px; height: 3px; background: #2196F3; }
.badge { font-weight: 500; }
.site-footer a:hover { color: #fff !important; }
@media (max-width: 768px) {
    .display-4 { font-size: 2rem; }
    .card:hover { transform: none; }
}
img { max-width: 100%; height: auto; }