body {
    margin: 0;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    background: #0f172a;
    color: #e5e7eb;
}
.topbar {
    display:flex;
    justify-content:space-between;
    align-items:center;
    padding:16px 24px;
    background:#020617;
    border-bottom:1px solid #1e293b;
}
.brand { font-weight:700; }
nav a { color:#dbeafe; margin-left:16px; text-decoration:none; }
.container { max-width:1180px; margin:0 auto; padding:24px; }
.card {
    background:#111827;
    border:1px solid #1f2937;
    border-radius:18px;
    padding:18px;
    margin-bottom:18px;
    box-shadow:0 10px 30px rgba(0,0,0,.18);
}
.grid { display:grid; grid-template-columns: repeat(auto-fit,minmax(260px,1fr)); gap:16px; }
input, select, textarea {
    width:100%;
    padding:10px;
    border-radius:10px;
    border:1px solid #334155;
    background:#020617;
    color:#e5e7eb;
    box-sizing:border-box;
}
label { display:block; margin-top:12px; margin-bottom:6px; color:#cbd5e1; }
button, .btn {
    display:inline-block;
    padding:10px 14px;
    border:0;
    border-radius:10px;
    background:#38bdf8;
    color:#082f49;
    font-weight:700;
    text-decoration:none;
    cursor:pointer;
}
table { width:100%; border-collapse:collapse; }
td, th { padding:10px; border-bottom:1px solid #1f2937; text-align:left; }
.badge { padding:4px 8px; border-radius:999px; background:#1e293b; color:#bae6fd; }
.error { background:#7f1d1d; color:#fecaca; padding:10px; border-radius:10px; }
.success { background:#14532d; color:#bbf7d0; padding:10px; border-radius:10px; }
.footer { color:#64748b; text-align:center; padding:24px; }
.small { color:#94a3b8; font-size: .9em; }