*{box-sizing:border-box}
body{margin:0;font-family:Arial,sans-serif;background:#0f172a;color:#fff;line-height:1.6}
a{text-decoration:none;color:inherit}
header{position:sticky;top:0;z-index:10;background:#111827;border-bottom:1px solid rgba(255,255,255,.1)}
.nav{max-width:1100px;margin:auto;padding:16px 20px;display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap}
.brand{font-size:24px;font-weight:700}
.menu{display:flex;gap:10px;flex-wrap:wrap}
.menu a{padding:10px 14px;border-radius:10px;background:#1e293b;border:1px solid rgba(255,255,255,.08)}
.menu a:hover{background:#10b981;color:#04130d}
.container{max-width:1100px;margin:auto;padding:28px 20px}
.hero{background:linear-gradient(135deg,#064e3b,#0f172a,#0e7490);padding:40px;border-radius:24px;margin-bottom:28px}
.hero h1{font-size:44px;line-height:1.15;margin:0 0 12px}
.hero p{max-width:800px;color:#d1d5db}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:20px}
.card{background:#1e293b;padding:22px;border-radius:18px;border:1px solid rgba(255,255,255,.08)}
.card h3{margin-top:0}
button,.btn{background:#10b981;color:#04130d;border:none;padding:12px 16px;border-radius:10px;font-weight:700;cursor:pointer;display:inline-block}
button:hover,.btn:hover{opacity:.92}
input,select,textarea{width:100%;padding:12px;border-radius:10px;border:1px solid #334155;background:#0b1220;color:#fff;margin-top:8px;margin-bottom:14px}
.result{margin-top:16px;padding:16px;border-radius:12px;background:#0b1220;border:1px solid #334155}
footer{border-top:1px solid rgba(255,255,255,.1);margin-top:40px;padding:22px 20px;color:#cbd5e1;text-align:center}
ul{padding-left:20px}
.badge{display:inline-block;background:#10b98122;color:#6ee7b7;border:1px solid #10b98144;padding:8px 12px;border-radius:999px;font-size:14px;margin-bottom:12px}
.small{color:#cbd5e1;font-size:14px}