:root {
  --bg: #0f1420;
  --panel: #171e2e;
  --panel-2: #1e2740;
  --line: #2a3350;
  --text: #e6ebf5;
  --muted: #8b97b3;
  --accent: #4f8cff;
  --green: #35c98b;
  --yellow: #f2c14e;
  --red: #f26d6d;
  --blue: #5aa9ff;
  --purple: #b48cff;
}
* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; }
body {
  font-family: "Segoe UI", system-ui, -apple-system, Roboto, sans-serif;
  background: var(--bg); color: var(--text); font-size: 14px;
}
.app { display: flex; min-height: 100vh; }

/* Sidebar */
.sidebar {
  width: 220px; background: var(--panel); border-right: 1px solid var(--line);
  display: flex; flex-direction: column; padding: 16px 0;
}
.brand { font-size: 20px; font-weight: 700; padding: 8px 20px 20px; display: flex; gap: 8px; align-items: center; }
.brand span { letter-spacing: .5px; }
#nav { display: flex; flex-direction: column; }
#nav a {
  padding: 11px 20px; color: var(--muted); cursor: pointer; text-decoration: none;
  border-left: 3px solid transparent; font-weight: 500;
}
#nav a:hover { color: var(--text); background: var(--panel-2); }
#nav a.active { color: var(--text); border-left-color: var(--accent); background: var(--panel-2); }
.conn { margin-top: auto; padding: 14px 20px; display: flex; align-items: center; gap: 8px; color: var(--muted); font-size: 13px; }
.dot { width: 10px; height: 10px; border-radius: 50%; background: var(--muted); }
.dot.on { background: var(--green); box-shadow: 0 0 8px var(--green); }
.dot.off { background: var(--red); }

/* Main */
.main { flex: 1; display: flex; flex-direction: column; min-width: 0; }
.topbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 24px; border-bottom: 1px solid var(--line); background: var(--panel);
}
.topbar h1 { font-size: 18px; margin: 0; }
.topbar-right { display: flex; align-items: center; gap: 14px; color: var(--muted); }
#refreshBtn {
  background: var(--panel-2); color: var(--text); border: 1px solid var(--line);
  border-radius: 8px; width: 34px; height: 34px; cursor: pointer; font-size: 16px;
}
#refreshBtn:hover { border-color: var(--accent); }
.content { padding: 24px; overflow: auto; }

/* Cards */
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 16px; margin-bottom: 24px; }
.card { background: var(--panel); border: 1px solid var(--line); border-radius: 12px; padding: 18px 20px; }
.card .k { color: var(--muted); font-size: 13px; }
.card .v { font-size: 30px; font-weight: 700; margin-top: 6px; }
.card .v.green { color: var(--green); }
.card .v.blue { color: var(--blue); }
.card .v.yellow { color: var(--yellow); }

/* Panels + tables */
.panel { background: var(--panel); border: 1px solid var(--line); border-radius: 12px; margin-bottom: 20px; overflow: hidden; }
.panel > h2 { margin: 0; padding: 14px 18px; font-size: 15px; border-bottom: 1px solid var(--line); display: flex; justify-content: space-between; align-items: center; }
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 11px 18px; border-bottom: 1px solid var(--line); }
th { color: var(--muted); font-weight: 600; font-size: 12px; text-transform: uppercase; letter-spacing: .4px; }
tr:last-child td { border-bottom: none; }
tbody tr:hover { background: var(--panel-2); }
.empty { padding: 22px 18px; color: var(--muted); }

/* Badges */
.badge { display: inline-block; padding: 3px 10px; border-radius: 999px; font-size: 12px; font-weight: 600; }
.badge.green { background: rgba(53,201,139,.15); color: var(--green); }
.badge.yellow { background: rgba(242,193,78,.15); color: var(--yellow); }
.badge.red { background: rgba(242,109,109,.15); color: var(--red); }
.badge.blue { background: rgba(90,169,255,.15); color: var(--blue); }
.badge.gray { background: rgba(139,151,179,.15); color: var(--muted); }
.mono { font-family: "Cascadia Code", Consolas, monospace; }

/* Forms + buttons */
input, select {
  background: var(--panel-2); border: 1px solid var(--line); color: var(--text);
  border-radius: 8px; padding: 8px 10px; font-size: 13px;
}
input:focus, select:focus { outline: none; border-color: var(--accent); }
.btn {
  background: var(--accent); color: #fff; border: none; border-radius: 8px;
  padding: 8px 14px; cursor: pointer; font-size: 13px; font-weight: 600;
}
.btn:hover { filter: brightness(1.08); }
.btn.sm { padding: 5px 10px; font-size: 12px; }
.btn.danger { background: var(--red); }
.btn.ghost { background: var(--panel-2); border: 1px solid var(--line); color: var(--text); }
.row { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.toolbar { padding: 14px 18px; border-bottom: 1px solid var(--line); }
.qmeta { color: var(--muted); font-weight: 400; font-size: 13px; }
.toast {
  position: fixed; bottom: 22px; right: 22px; background: var(--panel-2);
  border: 1px solid var(--line); border-radius: 10px; padding: 12px 16px;
  opacity: 0; transform: translateY(8px); transition: .25s; pointer-events: none;
}
.toast.show { opacity: 1; transform: none; }
.toast.ok { border-color: var(--green); }
.toast.err { border-color: var(--red); }