:root {
  --bg: #0f1220;
  --panel: #171b2e;
  --panel2: #1e2340;
  --text: #e8eaf2;
  --muted: #8a90a8;
  --primary: #4f7cff;
  --success: #2ecc71;
  --danger: #e74c3c;
  --border: #2a3050;
}
* { box-sizing: border-box; }
body {
  margin: 0; font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
  background: var(--bg); color: var(--text); font-size: 14px;
}
.hidden { display: none !important; }
.muted { color: var(--muted); }
.mono { font-family: ui-monospace, "SF Mono", monospace; font-size: 12px; }

/* Login */
.login-wrap { display: flex; align-items: center; justify-content: center; min-height: 100vh; }
.login-card { width: 100%; max-width: 380px; }
.card {
  background: var(--panel); border: 1px solid var(--border);
  border-radius: 12px; padding: 20px; margin-bottom: 16px;
}
.card h1 { margin-top: 0; font-size: 22px; }
label { display: block; margin: 12px 0 4px; font-weight: 600; color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: .5px; }
input, select, textarea {
  width: 100%; padding: 10px 12px; border-radius: 8px; border: 1px solid var(--border);
  background: var(--panel2); color: var(--text); font-size: 14px;
}
textarea { font-family: ui-monospace, monospace; }
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--primary); }

/* App layout */
.app { display: flex; min-height: 100vh; }
.sidebar {
  width: 220px; background: var(--panel); border-right: 1px solid var(--border);
  padding: 16px; position: sticky; top: 0; height: 100vh; overflow-y: auto;
}
.sidebar h2 { font-size: 16px; margin: 0 0 16px; }
.user-box { display: flex; flex-direction: column; gap: 8px; margin-bottom: 20px; padding-bottom: 16px; border-bottom: 1px solid var(--border); }
nav a {
  display: block; padding: 10px 12px; border-radius: 8px; color: var(--muted);
  text-decoration: none; margin-bottom: 4px; cursor: pointer;
}
nav a:hover { background: var(--panel2); color: var(--text); }
nav a.active { background: var(--primary); color: #fff; }
main { flex: 1; padding: 24px; overflow-x: auto; }
main h2 { margin-top: 0; }
main h3 { margin: 20px 0 8px; color: var(--muted); font-size: 13px; text-transform: uppercase; letter-spacing: .5px; }
.tab { display: none; }
.tab.active { display: block; }
.box {
  background: var(--panel); border: 1px solid var(--border); border-radius: 12px;
  padding: 16px; margin: 12px 0; overflow-x: auto;
}
.log { background: #0b0e1a; font-family: ui-monospace, monospace; font-size: 12px; padding: 16px; border-radius: 8px; max-height: 70vh; overflow-y: auto; white-space: pre-wrap; }

/* Buttons */
.btn {
  padding: 9px 14px; border: none; border-radius: 8px; cursor: pointer;
  background: var(--panel2); color: var(--text); font-size: 13px; margin: 4px 4px 4px 0;
}
.btn:hover { filter: brightness(1.15); }
.btn.primary { background: var(--primary); color: #fff; }
.btn.success { background: var(--success); color: #fff; }
.btn.danger { background: var(--danger); color: #fff; }
.btn.small { padding: 5px 9px; font-size: 12px; }

/* Table */
.tbl { width: 100%; border-collapse: collapse; }
.tbl th, .tbl td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--border); vertical-align: top; }
.tbl th { color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: .5px; }

/* Messages */
.msg { margin-top: 10px; font-size: 13px; }
.msg.ok { color: var(--success); }
.msg.err { color: var(--danger); }
#msg-bar { position: sticky; top: 0; z-index: 5; background: var(--panel); border: 1px solid var(--border); border-radius: 8px; padding: 10px 14px; margin-bottom: 12px; min-height: 20px; }