body{font-family:Arial,sans-serif;background:#0f172a;color:#e5e7eb;margin:0}
.container{max-width:1450px;margin:0 auto;padding:20px}
.topbar{background:#111827;padding:18px;border-radius:16px;margin-bottom:20px}
.topbar h1{margin:0 0 6px 0}
.nav{display:flex;flex-wrap:wrap;gap:8px;margin-top:10px}
.nav a,.link-btn{color:#fff;background:#1f2937;padding:8px 12px;text-decoration:none;border-radius:10px}
.card{background:#111827;padding:18px;border-radius:16px;margin-bottom:20px;border:1px solid #1f2937}
.narrow{max-width:520px;margin:0 auto 20px}
.grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-bottom:20px}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:16px}
label{display:block;margin-bottom:6px;font-weight:bold}
input,select,textarea,button{width:100%;padding:10px;margin-bottom:12px;border-radius:10px;border:1px solid #334155;background:#0b1220;color:#fff;box-sizing:border-box}
textarea{min-height:120px}
button{cursor:pointer;background:#2563eb;border:none}
.btn-small{width:auto;padding:7px 12px;margin:0}
.btn-secondary{background:#4b5563}
.btn-danger{background:#dc2626}
.inline-check{display:flex;gap:8px;align-items:center}
.inline-check input{width:auto;margin:0}
table{width:100%;border-collapse:collapse;font-size:14px}
table th,table td{border:1px solid #273549;padding:10px;text-align:left;vertical-align:top}
.flash{padding:12px;border-radius:12px;margin-bottom:16px}
.flash.success{background:#065f46}.flash.error{background:#7f1d1d}
.footer{padding:10px 0 30px}.muted{color:#94a3b8}
.action-stack{display:flex;flex-direction:column;gap:6px}
.tabs{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:18px}
.tab-link{display:inline-block;padding:10px 14px;border-radius:10px;background:#374151;color:#fff;text-decoration:none}
.tab-link.active{background:#2563eb}
.settings-group{border:1px solid #273549;border-radius:12px;padding:16px}
.setting-row{margin-bottom:16px}.setting-row small{display:block;margin-top:6px;color:#94a3b8}
.toolbar{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap}
.toolbar-actions form{display:flex;gap:10px;align-items:center}
.node-cards{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.node-card{background:#0b1220;border:1px solid #273549;border-radius:12px;padding:14px}
@media(max-width:1000px){.grid{grid-template-columns:repeat(2,1fr)}.grid-2,.node-cards{grid-template-columns:1fr}}
@media(max-width:640px){.grid{grid-template-columns:1fr}}