:root{--indigo:#506EAD;--indigo-dark:#212D47;--grad-top:#212D47;--grad-bottom:#506EAD;--bg:#f8fafc;--card:#ffffff;--text:#1e293b;--muted:#64748b;--radius:16px;--shadow:0 10px 30px rgba(15,23,42,.08);--max:1100px}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;background:var(--bg);color:var(--text);line-height:1.6;-webkit-font-smoothing:antialiased}
a{color:var(--indigo);text-decoration:none}
a:hover{text-decoration:underline}
img{max-width:100%;height:auto;display:block}
.container{width:100%;max-width:var(--max);margin:0 auto;padding:0 20px}
.skip-link{position:absolute;left:-999px;top:0;background:#fff;padding:8px 12px;z-index:100}
.skip-link:focus{left:8px;top:8px}

.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.9);backdrop-filter:saturate(180%) blur(10px);border-bottom:1px solid #e2e8f0}
.nav{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;color:var(--text);font-size:1.1rem}
.brand:hover{text-decoration:none}
.nav-toggle{display:inline-flex;align-items:center;justify-content:center;width:44px;height:44px;background:none;border:0;font-size:1.5rem;cursor:pointer;color:var(--text);border-radius:10px}
.nav-toggle:hover{background:rgba(15,23,42,.06)}
.nav-toggle[aria-expanded="true"]{background:rgba(15,23,42,.1)}
.nav-controls{position:relative}
.nav-sheet{position:absolute;top:calc(100% + 10px);right:0;min-width:220px;background:#fff;border:1px solid #e2e8f0;border-radius:14px;box-shadow:var(--shadow);padding:10px;list-style:none;display:none;z-index:60}
.nav-sheet.open{display:block;animation:sheet-in .15s ease}
@keyframes sheet-in{from{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:translateY(0)}}
.nav-sheet li{margin:0}
.nav-sheet a{display:block;padding:12px 14px;border-radius:10px;color:var(--text);font-weight:500}
.nav-sheet a:hover{background:var(--indigo);color:#fff;text-decoration:none}

.hero{background:linear-gradient(180deg,var(--grad-top),var(--grad-bottom));color:#fff;padding:72px 0}
.hero-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:40px;align-items:center}
.hero h1{font-size:clamp(2rem,5vw,3.2rem);line-height:1.1;margin-bottom:16px}
.lead{font-size:1.15rem;opacity:.95;margin-bottom:28px;max-width:36ch}
.hero-media img{border-radius:24px;box-shadow:var(--shadow);margin:0 auto;max-width:260px}
.btn{display:inline-block;padding:14px 26px;border-radius:999px;font-weight:700;transition:transform .15s ease,box-shadow .15s ease}
.btn:hover{text-decoration:none;transform:translateY(-2px)}
.btn-primary{background:#fff;color:var(--indigo)}
.btn-primary:hover{box-shadow:0 12px 24px rgba(0,0,0,.2)}

section{padding:64px 0}
section h2{font-size:clamp(1.5rem,3vw,2.2rem);text-align:center;margin-bottom:36px}
.content{max-width:820px;margin:0 auto;padding:56px 20px}
.content h2{text-align:left;margin:36px 0 14px;font-size:clamp(1.3rem,2.5vw,1.8rem)}
.content p{margin-bottom:16px;color:var(--text)}
.bullet{list-style:none;display:grid;gap:10px;margin:0 0 16px}
.bullet li{padding-left:4px}

.card-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:22px}
.card{background:var(--card);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow);transition:transform .15s ease}
.card:hover{transform:translateY(-4px)}
.card-icon{font-size:2.4rem;margin-bottom:12px}
.card h3{margin-bottom:8px;font-size:1.2rem}

.cat-list{list-style:none;display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:14px}
.cat-list a{display:block;background:var(--card);padding:18px 20px;border-radius:12px;box-shadow:var(--shadow);font-weight:600}
.cat-list a:hover{background:var(--indigo);color:#fff;text-decoration:none}

.faq-list{display:grid;gap:14px;max-width:760px;margin:0 auto}
.faq-item{background:var(--card);border-radius:12px;box-shadow:var(--shadow);overflow:hidden}
.faq-item summary{padding:18px 22px;font-weight:600;cursor:pointer;list-style:none;display:flex;justify-content:space-between;align-items:center}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";font-size:1.4rem;color:var(--muted)}
.faq-item[open] summary::after{content:"−"}
.faq-item p{padding:0 22px 20px}

.cta{text-align:center;background:linear-gradient(180deg,var(--grad-top),var(--grad-bottom));color:#fff;border-radius:var(--radius);margin:40px auto;max-width:var(--max);padding:56px 20px}
.cta h2{color:#fff}
.cta .btn-primary{background:#fff;color:var(--indigo);margin-top:24px}

.site-footer{border-top:1px solid #e2e8f0;padding:32px 0;background:#fff}
.footer-grid{display:flex;justify-content:space-between;flex-wrap:wrap;gap:16px;align-items:center;color:var(--muted);font-size:.9rem}
.footer-grid nav{display:flex;gap:18px}

@media(max-width:760px){
  .hero-grid{grid-template-columns:1fr;text-align:center}
  .lead{margin-left:auto;margin-right:auto}
  .hero-media{order:-1}
  .nav-sheet{right:0}
}

.video-section{background:var(--bg)}
.video-wrap{position:relative;width:100%;max-width:560px;margin:0 auto;aspect-ratio:16/9;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);background:#000}
.video-wrap iframe{position:absolute;inset:0;width:100%;height:100%;border:0}