*{margin:0;padding:0;box-sizing:border-box}
body{font-family:system-ui,sans-serif;background:#0f172a;color:#e2e8f0;line-height:1.7}
header{display:flex;justify-content:space-between;align-items:center;padding:1rem 2rem;background:#1e293b;position:sticky;top:0;z-index:10}
.logo{font-size:1.4rem;font-weight:800;color:#fff}
.logo span{color:#38bdf8}
nav a{color:#94a3b8;text-decoration:none;margin-left:1.5rem;font-weight:500}
nav a:hover{color:#38bdf8}
main{max-width:800px;margin:2rem auto;padding:0 1.5rem}
.hero{text-align:center;padding:3rem 0}
.hero h1{font-size:2.5rem;margin-bottom:1rem;color:#fff}
.hero p{color:#94a3b8;font-size:1.1rem;margin-bottom:2rem}
.btn{display:inline-block;background:#38bdf8;color:#0f172a;padding:.75rem 1.5rem;border-radius:6px;font-weight:700;text-decoration:none}
.btn:hover{background:#7dd3fc}
.features{display:grid;grid-template-columns:1fr 1fr;gap:1rem;margin:2rem 0}
.card{background:#1e293b;padding:1.5rem;border-radius:8px}
.card h3{color:#38bdf8;margin-bottom:.5rem}
.routes h2{color:#fff;margin-bottom:1rem}
.routes ul{list-style:none}
.routes li{padding:.5rem 0;border-bottom:1px solid #334155;color:#cbd5e1}
.cta{text-align:center;padding:3rem 0}
.cta h2{color:#fff;font-size:1.8rem}
.calc{background:#1e293b;padding:2rem;border-radius:8px}
.calc label{display:block;margin:1rem 0 .25rem;font-weight:600;color:#94a3b8}
.calc select,.calc input{width:100%;padding:.5rem;background:#0f172a;color:#fff;border:1px solid #334155;border-radius:4px;margin-bottom:.5rem}
.result{margin-top:1rem;padding:1rem;background:#0f172a;border-radius:4px;color:#38bdf8;font-size:1.1rem}
.note{color:#64748b;font-size:.9rem;margin-top:1rem}
footer{text-align:center;padding:2rem;background:#1e293b;color:#64748b;margin-top:3rem}
@media(max-width:600px){.features{grid-template-columns:1fr}
.hero h1{font-size:1.8rem}}