*{box-sizing:border-box}
body{margin:0;font-family:Arial,Helvetica,sans-serif;background:#0f1115;color:#f5f7fb}
a{color:#9ec2ff;text-decoration:none}
.wrap{max-width:1100px;margin:0 auto;padding:20px}
.topbar{background:#171a21;border-bottom:1px solid rgba(255,255,255,.08)}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:20px}
.logo{font-weight:700;color:#fff;font-size:20px}
.nav{display:flex;gap:15px;flex-wrap:wrap}
.card{background:#171a21;border:1px solid rgba(255,255,255,.08);border-radius:16px;padding:20px;margin-bottom:20px}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:20px}
.btn{background:#4f8cff;border:none;color:#fff;padding:12px 18px;border-radius:10px;cursor:pointer}
.btn.secondary{background:#2a3240}
input, textarea, select{width:100%;padding:12px;border-radius:10px;border:1px solid rgba(255,255,255,.12);background:#10141c;color:#fff;margin-bottom:12px}
textarea{min-height:150px;resize:vertical}
.small{color:#b5bfd1;font-size:14px}
.alert{background:#1f2430;border-left:4px solid #4f8cff;padding:12px 15px;border-radius:8px;margin-bottom:15px}
.result-box{white-space:pre-wrap;background:#10141c;border:1px solid rgba(255,255,255,.08);padding:16px;border-radius:12px;margin-top:12px}
.table{width:100%;border-collapse:collapse}
.table th,.table td{border-bottom:1px solid rgba(255,255,255,.08);padding:10px;text-align:left}
.footer{border-top:1px solid rgba(255,255,255,.08);margin-top:30px;color:#9aa6bd}
.hero{padding:35px 0 10px}
@media(max-width:700px){.topbar-inner{flex-direction:column;align-items:flex-start}}