.side-nav{position:fixed;left:0;top:0;bottom:0;width:220px;background:#1A1A1A;z-index:1000;display:flex;flex-direction:column;justify-content:center;padding:40px 0}
.side-nav>a{display:block;padding:16px 40px;color:rgba(255,255,255,.6);font-size:15px;font-weight:500;transition:all .2s;border-left:3px solid transparent}
.side-nav>a:hover,.side-nav>a.active{color:#fff;border-left-color:#C41E3A;background:rgba(196,30,58,.15)}
.side-brand{padding:16px 40px;font-size:20px;font-weight:800;color:#C41E3A;margin-bottom:20px}
.nav-item-has-dropdown{position:relative}
.nav-item-has-dropdown>a{display:block;padding:16px 40px;color:rgba(255,255,255,.6);font-size:15px;font-weight:500;transition:all .2s;border-left:3px solid transparent}
.nav-item-has-dropdown:hover>a{color:#fff;border-left-color:#C41E3A;background:rgba(196,30,58,.15)}
.dropdown-menu{position:absolute;left:100%;top:0;min-width:160px;background:#2A2A2A;border-radius:0 12px 12px 0;box-shadow:4px 4px 20px rgba(0,0,0,.3);opacity:0;visibility:hidden;transform:translateX(-10px);transition:all .3s;padding:12px 0;list-style:none;z-index:1001}
.nav-item-has-dropdown:hover .dropdown-menu{opacity:1;visibility:visible;transform:translateX(0)}
.dropdown-menu li a{display:block;padding:10px 20px;color:rgba(255,255,255,.6);font-size:14px;transition:all .2s}
.dropdown-menu li a:hover{color:#fff;background:rgba(196,30,58,.2)}
.main{margin-left:220px}
.page-header{padding:160px 80px 80px;background:#1A1A1A}
.page-title{font-size:clamp(40px,6vw,72px);font-weight:900;line-height:1.2;margin-bottom:16px;color:#fff}
.page-title em{color:#C41E3A;font-style:normal}
.page-breadcrumb{font-size:14px;color:rgba(255,255,255,.5)}
.page-breadcrumb a{color:rgba(255,255,255,.6)}.page-breadcrumb a:hover{color:#C41E3A}
section{padding:100px 80px}
.section-eyebrow{font-size:12px;font-weight:600;text-transform:uppercase;letter-spacing:3px;color:#C41E3A;margin-bottom:16px}
h2.section-title{font-size:clamp(32px,4vw,48px);font-weight:800;line-height:1.2;margin-bottom:24px}
.cert-intro{background:#fff;text-align:center}
.cert-intro p{font-size:18px;color:#666;max-width:800px;margin:0 auto;line-height:2}
.cert-grid{background:#F5F5F5}
.cert-list{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;max-width:1000px;margin:0 auto}
.cert-box{background:#fff;border:1px solid #E5E5E5;border-radius:16px;padding:40px;text-align:center;transition:all .3s}
.cert-box:hover{border-color:#C41E3A;box-shadow:0 16px 48px rgba(196,30,58,.1);transform:translateY(-4px)}
.cert-icon{font-size:48px;margin-bottom:16px;display:block}
.cert-name{font-size:18px;font-weight:700;margin-bottom:8px;display:block}
.cert-desc{font-size:13px;color:#888;display:block}
.cta-section{background:#C41E3A;color:#fff;text-align:center}
.cta-section h2{color:#fff}
.btn{padding:14px 36px;border-radius:50px;font-weight:600;font-size:14px;display:inline-block;border:none;transition:all .3s;background:#fff;color:#C41E3A}.btn:hover{background:#1A1A1A;color:#fff}
footer{padding:40px 80px;border-top:1px solid #E5E5E5;text-align:center;color:#999;font-size:13px;background:#fff;margin-left:220px}
@media(max-width:1024px){
    .side-nav{display:none}
    .main,footer{margin-left:0}
    .cert-list{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:768px){
    .page-header{padding:120px 20px 60px}
    section{padding:60px 20px}
    .cert-list{grid-template-columns:1fr}
    footer{padding:40px 20px}
    .cert-box{padding:32px}
    .cert-icon{font-size:40px}
}
@media(max-width:480px){
    .page-header{padding:100px 16px 40px}
    section{padding:40px 16px}
    .cert-box{padding:24px}
    .cert-icon{font-size:32px}
    .cert-name{font-size:16px}
}