:root{
  --bg:#0f2a28; --panel:#143532; --txt:#e8f2f1; --muted:#9fb7b5; --accent:#1ea39a;
}
*{box-sizing:border-box} body{margin:0;background:var(--bg);color:var(--txt);font:16px system-ui,Segoe UI,Arial}
.container{max-width:1100px;margin:32px auto;padding:0 16px}
.card{background:var(--panel);border-radius:12px;padding:16px 18px;box-shadow:0 0 0 1px #0c2623}
.topbar{display:flex;gap:12px;align-items:center;justify-content:space-between;margin-bottom:16px}
.topbar .nav{display:flex;gap:8px}
button{background:var(--accent);border:none;color:#042f2b;padding:8px 14px;border-radius:10px;cursor:pointer;font-weight:600}
input{background:#0b2422;border:1px solid #0c2623;color:var(--txt);padding:10px 12px;border-radius:10px;min-width:220px}
h1{margin:0 0 10px 0;font-size:22px}
.muted{color:var(--muted);font-size:14px}
.table{width:100%;border-collapse:collapse;margin-top:10px}
.table th,.table td{padding:10px;border-bottom:1px solid #0c2623;text-align:left}
.center{display:flex;align-items:center;justify-content:center;height:45vh}
.link{color:var(--accent);text-decoration:none}