:root{--bg:#0b0f14;--fg:#e6edf3;--muted:#9aa4af;--card:#11161d;--accent:#3aa675;--border:#1b2430}
*{box-sizing:border-box}
html,body{margin:0;padding:0;background:var(--bg);color:var(--fg);font-family:system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial}
.topbar{display:flex;justify-content:space-between;align-items:center;padding:12px 16px;background:#0f1721;border-bottom:1px solid var(--border);position:sticky;top:0}
.topbar .brand{font-weight:700;color:var(--fg);text-decoration:none}
.topbar nav a{margin-left:12px;color:var(--muted);text-decoration:none}
.topbar nav a:hover{color:var(--fg)}
.container{padding:16px}
.card{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:16px;max-width:800px;margin:0 auto}
form label{display:block;margin:12px 0}
form label span{display:block;margin-bottom:6px;color:var(--muted)}
input,select,textarea{width:100%;padding:12px;border-radius:10px;border:1px solid var(--border);background:#0f1721;color:var(--fg)}
button.btn,.btn{display:inline-block;padding:12px 14px;border-radius:10px;background:var(--accent);color:#081510;border:0;text-decoration:none;text-align:center}
button.btn:hover,.btn:hover{filter:brightness(1.05)}
.grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.alert{background:#29151a;border:1px solid #51222b;color:#ffb3c1;padding:12px;border-radius:10px;margin-bottom:12px}
table{width:100%;border-collapse:collapse}
th,td{padding:10px;border-bottom:1px solid var(--border)}
.footer{padding:12px 16px;background:#0f1721;border-top:1px solid var(--border);display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap}
.footer a{color:var(--muted);text-decoration:none}
.footer a:hover{color:var(--fg)}
.responsive{width:100%;}
@media (max-width: 640px){
  table.responsive thead{display:none}
  table.responsive tr{display:block;border:1px solid var(--border);border-radius:10px;margin-bottom:10px}
  table.responsive td{display:flex;justify-content:space-between;gap:12px;border-bottom:0;padding:12px}
  table.responsive td::before{content:attr(data-label);color:var(--muted)}
}
.footer{padding:24px;color:var(--muted);text-align:center}
.floating-actions{position:fixed;right:16px;bottom:16px;display:flex;flex-direction:column;gap:10px;z-index:50}