:root { --bg:#0b0c10; --card:#12141a; --muted:#9aa3af; --ok:#155724; --okbg:#d4edda; --err:#721c24; --errbg:#f8d7da; --line:#1f2430; }
*{box-sizing:border-box} body{margin:0;font:14px/1.4 system-ui,-apple-system,Segoe UI,Roboto,Arial;background:#0b0c10;color:#e5e7eb}
a{color:#8ab4f8;text-decoration:none}
.container{max-width:980px;margin:24px auto;padding:0 16px}
.container.container-liquid{
  max-width:none;
  width:100%;
  margin:16px 0;
  padding:0;
}
.centered{display:grid;place-items:center;min-height:100vh}
.card{background:var(--card);padding:20px;border-radius:12px;box-shadow:0 10px 30px rgba(0,0,0,.25);width:100%;max-width:620px}
.card h1{margin:0 0 12px;font-size:20px}
label{display:flex;flex-direction:column;gap:6px;margin-bottom:12px}
input,textarea,select{background:#0f1117;border:1px solid #262a33;color:#e5e7eb;border-radius:8px;padding:10px}
button{background:#2563eb;color:#fff;border:0;padding:10px 14px;border-radius:10px;cursor:pointer;font-weight:700}
button:hover{filter:brightness(1.1)}
.muted{color:var(--muted);font-size:12px}
.alert{background:var(--errbg);color:var(--err);padding:10px 12px;border-radius:8px;margin:12px 0}
.success{background:var(--okbg);color:var(--ok);padding:10px 12px;border-radius:8px;margin:12px 0}

/* topbar */
.topbar{display:flex;justify-content:space-between;align-items:center;padding:10px 16px;background:#0f1117;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}
.brand{display:flex;align-items:center;gap:8px}
.logo{font-size:16px;opacity:.8}
.brand-name{font-weight:700}
.mainnav{display:flex;align-items:center;gap:12px}
.mainnav a.active{font-weight:700;text-decoration:underline}
.iconbtn{background:#0f1117;border:1px solid var(--line);color:#e5e7eb;border-radius:8px;padding:6px 10px;cursor:pointer}
.iconbtn:hover{filter:brightness(1.1)}

/* grid helpers */
.grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
.full{grid-column:1/-1}

/* drawer right */
.drawer{position:fixed;inset:0;display:none;background:rgba(0,0,0,.35);z-index:30}
.drawer.open{display:block}
.drawer-inner{position:absolute;right:0;top:0;height:100%;width:420px;background:#0f1117;border-left:1px solid var(--line);display:flex;flex-direction:column}
.drawer-header{display:flex;justify-content:space-between;align-items:center;padding:12px 14px;border-bottom:1px solid var(--line)}
.drawer-body{padding:14px;overflow:auto}
.drawer-footer{padding:12px 14px;border-top:1px solid var(--line);display:flex;justify-content:flex-end;background:#0f1117}

/* footer */
.footer{margin-top:40px;border-top:1px solid var(--line);padding:16px;display:flex;justify-content:space-between;align-items:center;background:#0f1117}

/* small screens */
@media (max-width:720px){
  .grid{grid-template-columns:1fr}
  .drawer-inner{width:92vw}
}
.table{width:100%;border-collapse:collapse;margin:8px 0 12px}
.table th,.table td{border:1px solid var(--line);padding:6px 8px;text-align:left}
.section{margin:12px 0 8px}