/*
Theme Name: HuongDanKiemTien Production
Author: Pro Max
Version: 3.0
*/

body{margin:0;font-family:Arial;background:#f5f7fb}
.header{background:#0d6efd;color:#fff;padding:16px;font-size:20px}
.container{max-width:1100px;margin:auto;padding:20px}
.section{margin-bottom:40px}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:15px}
.card{background:#fff;padding:15px;border-radius:12px;box-shadow:0 3px 10px rgba(0,0,0,0.05)}
.card a{text-decoration:none;color:#333;font-weight:bold}
.banner img{width:100%;border-radius:10px;margin-bottom:10px}
.cta{position:fixed;bottom:20px;right:20px;background:#ff5722;color:#fff;padding:12px 18px;border-radius:30px;text-decoration:none}