:root {
  --bg: #0f172a;
  --panel: #1e293b;
  --panel-2: #273449;
  --border: #334155;
  --text: #e2e8f0;
  --muted: #94a3b8;
  --accent: #38bdf8;
  --accent-2: #0ea5e9;
  --green: #22c55e;
  --red: #ef4444;
  --amber: #f59e0b;
  --radius: 10px;
}

* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; }
body {
  font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
}
.hidden { display: none !important; }

/* ---------- Login ---------- */
#login {
  height: 100vh;
  display: grid;
  place-items: center;
}
.login-card {
  width: 340px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
}
.login-card h1 { margin: 0 0 4px; font-size: 22px; }
.login-card p { margin: 0 0 20px; color: var(--muted); font-size: 13px; }

/* ---------- Layout ---------- */
#app { display: grid; grid-template-columns: 220px 1fr; min-height: 100vh; }
.sidebar {
  background: var(--panel);
  border-right: 1px solid var(--border);
  padding: 20px 14px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.brand { font-size: 18px; font-weight: 700; padding: 6px 10px 18px; }
.brand span { color: var(--accent); }
.nav-item {
  text-align: left;
  background: transparent;
  border: none;
  color: var(--muted);
  padding: 10px 12px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 14px;
}
.nav-item:hover { background: var(--panel-2); color: var(--text); }
.nav-item.active { background: var(--accent-2); color: #04222f; font-weight: 600; }
.sidebar .spacer { flex: 1; }

.main { padding: 24px 28px; overflow: auto; }
.page-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 18px; }
.page-head h2 { margin: 0; font-size: 20px; }

/* ---------- Cards / stats ---------- */
.stats { display: grid; grid-template-columns: repeat(5, 1fr); gap: 12px; margin-bottom: 18px; }
.stat {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 16px;
}
.stat .label { color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: .04em; }
.stat .value { font-size: 24px; font-weight: 700; margin-top: 4px; }

/* ---------- Table ---------- */
.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 11px 14px; border-bottom: 1px solid var(--border); }
th { background: var(--panel-2); color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: .03em; }
tr:last-child td { border-bottom: none; }
td.mono, .mono { font-family: ui-monospace, "Cascadia Code", monospace; font-size: 12.5px; }
.empty { padding: 28px; text-align: center; color: var(--muted); }

/* ---------- Badges ---------- */
.badge { display: inline-block; padding: 2px 9px; border-radius: 999px; font-size: 12px; font-weight: 600; }
.badge.on { background: rgba(34,197,94,.15); color: #4ade80; }
.badge.off { background: rgba(239,68,68,.15); color: #f87171; }
.badge.gray { background: rgba(148,163,184,.15); color: var(--muted); }
.badge.blue { background: rgba(56,189,248,.15); color: var(--accent); }
.badge.amber { background: rgba(245,158,11,.15); color: #fbbf24; }

/* ---------- Forms / buttons ---------- */
label { display: block; font-size: 12px; color: var(--muted); margin: 12px 0 5px; }
input, select, textarea {
  width: 100%;
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 8px;
  padding: 9px 11px;
  font-size: 14px;
  font-family: inherit;
}
select[multiple] { min-height: 120px; }
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--accent); }
.row { display: flex; gap: 12px; flex-wrap: wrap; align-items: end; }
.row > div { flex: 1; min-width: 120px; }

.btn {
  background: var(--accent-2); color: #04222f; border: none;
  padding: 9px 16px; border-radius: 8px; font-weight: 600; cursor: pointer; font-size: 14px;
}
.btn:hover { background: var(--accent); }
.btn.secondary { background: var(--panel-2); color: var(--text); }
.btn.secondary:hover { background: var(--border); }
.btn.danger { background: transparent; color: #f87171; padding: 6px 10px; }
.btn.danger:hover { background: rgba(239,68,68,.12); }
.btn.small { padding: 6px 12px; font-size: 13px; }
.btn.link { background: none; color: var(--accent); padding: 6px; }
.actions { display: flex; gap: 6px; }

/* ---------- Modal ---------- */
.modal-backdrop {
  position: fixed; inset: 0; background: rgba(0,0,0,.55);
  display: grid; place-items: center; z-index: 50;
}
.modal {
  width: 460px; max-width: 92vw; max-height: 88vh; overflow: auto;
  background: var(--panel); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 22px 24px;
}
.modal h3 { margin: 0 0 4px; }
.modal .modal-actions { display: flex; justify-content: flex-end; gap: 10px; margin-top: 22px; }
.checkline { display: flex; align-items: center; gap: 8px; margin-top: 12px; }
.checkline input { width: auto; }

/* ---------- Toast ---------- */
#toast {
  position: fixed; bottom: 22px; right: 22px; z-index: 100;
  display: flex; flex-direction: column; gap: 8px;
}
.toast {
  background: var(--panel-2); border: 1px solid var(--border);
  border-left: 3px solid var(--accent); padding: 11px 16px; border-radius: 8px;
  min-width: 220px; box-shadow: 0 6px 24px rgba(0,0,0,.35);
}
.toast.error { border-left-color: var(--red); }
.toast.success { border-left-color: var(--green); }
.muted { color: var(--muted); }

/* ---------- Pager ---------- */
.pager { display: flex; align-items: center; justify-content: flex-end; gap: 12px; margin-top: 14px; }
.pager .info { color: var(--muted); font-size: 13px; }
.pager button[disabled] { opacity: .4; cursor: not-allowed; }
.dot { display: inline-block; width: 9px; height: 9px; border-radius: 50%; margin-right: 6px; vertical-align: middle; }
.dot.green { background: var(--green); box-shadow: 0 0 6px rgba(34,197,94,.8); }
.dot.red { background: var(--red); box-shadow: 0 0 6px rgba(239,68,68,.6); }
.copy { cursor: pointer; }
.copy:hover { color: var(--accent); }