:root {
  --bg: #0f172a; --sidebar: #1e293b; --card: #1e293b;
  --border: #334155; --text: #e2e8f0; --muted: #94a3b8;
  --accent: #3b82f6; --green: #22c55e; --red: #ef4444;
  --yellow: #f59e0b; --radius: 8px;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: -apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
  background: var(--bg); color: var(--text); display: flex; height: 100vh; overflow: hidden; }
/* Login */
#login-page { display:flex; align-items:center; justify-content:center; width:100%; }
.login-box { background:var(--card); border:1px solid var(--border); border-radius:12px;
  padding:40px; width:360px; }
.login-box h1 { font-size:20px; margin-bottom:8px; }
.login-box p { color:var(--muted); font-size:13px; margin-bottom:24px; }
/* Layout */
#app { display:flex; width:100%; }
#sidebar { width:220px; background:var(--sidebar); border-right:1px solid var(--border);
  padding:16px 0; flex-shrink:0; display:flex; flex-direction:column; }
#sidebar .logo { padding:0 20px 16px; font-size:15px; font-weight:600;
  border-bottom:1px solid var(--border); margin-bottom:8px; }
#sidebar .logo span { color:var(--accent); }
.nav-item { display:flex; align-items:center; gap:10px; padding:9px 20px;
  cursor:pointer; border-radius:0; color:var(--muted); font-size:13px; transition:.15s; }
.nav-item:hover { background:#ffffff0d; color:var(--text); }
.nav-item.active { background:#3b82f620; color:var(--accent); border-right:2px solid var(--accent); }
.nav-item .icon { width:16px; text-align:center; }
.sidebar-footer { margin-top:auto; padding:12px 20px; border-top:1px solid var(--border);
  font-size:12px; color:var(--muted); }
#main { flex:1; overflow-y:auto; padding:24px; }
/* Components */
.page-title { font-size:20px; font-weight:600; margin-bottom:20px; }
.card { background:var(--card); border:1px solid var(--border); border-radius:var(--radius);
  padding:20px; margin-bottom:16px; }
.card h3 { font-size:14px; color:var(--muted); margin-bottom:12px; }
.stats-grid { display:grid; grid-template-columns:repeat(auto-fill,minmax(160px,1fr)); gap:12px; }
.stat { background:var(--card); border:1px solid var(--border); border-radius:var(--radius);
  padding:16px; }
.stat .val { font-size:28px; font-weight:700; color:var(--accent); }
.stat .lbl { font-size:12px; color:var(--muted); margin-top:4px; }
/* Table */
table { width:100%; border-collapse:collapse; font-size:13px; }
th { text-align:left; padding:8px 12px; color:var(--muted); border-bottom:1px solid var(--border); }
td { padding:9px 12px; border-bottom:1px solid #ffffff0a; vertical-align:middle; }
tr:hover td { background:#ffffff05; }
.badge { display:inline-block; padding:2px 8px; border-radius:20px; font-size:11px; font-weight:600; }
.badge-green { background:#22c55e20; color:var(--green); }
.badge-red { background:#ef444420; color:var(--red); }
.badge-yellow { background:#f59e0b20; color:var(--yellow); }
.badge-blue { background:#3b82f620; color:var(--accent); }
/* Form */
.form-group { margin-bottom:14px; }
.form-group label { display:block; font-size:12px; color:var(--muted); margin-bottom:6px; }
input, select, textarea { width:100%; background:#0f172a; border:1px solid var(--border);
  border-radius:6px; padding:8px 12px; color:var(--text); font-size:13px;
  outline:none; transition:.15s; }
input:focus, select:focus, textarea:focus { border-color:var(--accent); }
.btn { display:inline-flex; align-items:center; gap:6px; padding:8px 16px;
  border-radius:6px; font-size:13px; cursor:pointer; border:none; transition:.15s; }
.btn-primary { background:var(--accent); color:#fff; }
.btn-primary:hover { background:#2563eb; }
.btn-danger { background:#ef444420; color:var(--red); border:1px solid #ef444440; }
.btn-danger:hover { background:#ef444430; }
.btn-ghost { background:transparent; color:var(--muted); border:1px solid var(--border); }
.btn-ghost:hover { color:var(--text); border-color:var(--text); }
.btn-sm { padding:4px 10px; font-size:12px; }
.btn:disabled { opacity:.5; cursor:not-allowed; }
/* Test result */
.test-result { margin-top:10px; padding:10px 14px; border-radius:6px;
  font-size:12px; font-family:monospace; word-break:break-all; }
.test-ok { background:#22c55e15; border:1px solid #22c55e30; color:var(--green); }
.test-fail { background:#ef444415; border:1px solid #ef444430; color:var(--red); }
.test-pending { background:#3b82f615; border:1px solid #3b82f630; color:var(--accent); }
/* Modal */
.modal-overlay { position:fixed; inset:0; background:#00000080;
  display:flex; align-items:center; justify-content:center; z-index:999; }
.modal { background:var(--card); border:1px solid var(--border); border-radius:12px;
  padding:24px; width:480px; max-width:95vw; max-height:90vh; overflow-y:auto; }
.modal h2 { font-size:16px; margin-bottom:18px; }
.modal-footer { display:flex; gap:8px; justify-content:flex-end; margin-top:18px; }
/* Toast */
.toast { position:fixed; bottom:20px; right:20px; padding:10px 18px;
  border-radius:8px; font-size:13px; z-index:9999; animation:fadein .2s; }
.toast-ok { background:var(--green); color:#000; }
.toast-err { background:var(--red); color:#fff; }
@keyframes fadein { from { opacity:0; transform:translateY(8px); } }
/* Util */
.flex { display:flex; } .gap-8 { gap:8px; } .mt-12 { margin-top:12px; }
.text-sm { font-size:12px; } .text-muted { color:var(--muted); }
.text-green { color:var(--green); } .text-red { color:var(--red); }
.spinner { display:inline-block; width:14px; height:14px; border:2px solid transparent;
  border-top-color:currentColor; border-radius:50%; animation:spin .6s linear infinite; }
@keyframes spin { to { transform:rotate(360deg); } }
.actions { display:flex; gap:6px; }
select option { background: var(--sidebar); }