body { font-family: sans-serif; margin: 0; padding: 0; background: #fff; color: #333; }
header, nav, main, footer { padding: 20px; max-width: 1200px; margin: auto; }
header { background: #eee; text-align: center; }
nav ul { list-style: none; display: flex; flex-wrap: wrap; padding: 0; }
nav li { margin: 10px; }
nav a { text-decoration: none; color: #333; font-weight: bold; }
section { margin-top: 40px; }
footer { background: #eee; text-align: center; margin-top: 40px; padding: 20px; }
.services-nav { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 20px; }
.services-nav button { padding: 10px 15px; cursor: pointer; border: none; background: #333; color: #fff; border-radius: 4px; }
.service-tab { display: none; }
.service-tab.active { display: block; }
.video-container { margin-top: 20px; }