:root {
  --bg: #0f172a; --panel: #1e293b; --panel2: #273449; --line: #334155;
  --text: #e2e8f0; --muted: #94a3b8; --accent: #38bdf8; --accent2: #0ea5e9;
  --ok: #22c55e; --err: #ef4444; --warn: #f59e0b;
}
* { box-sizing: border-box; }
body {
  margin: 0; font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background: var(--bg); color: var(--text); font-size: 15px;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.layout { display: flex; min-height: 100vh; }
.sidebar {
  width: 220px; background: var(--panel); border-right: 1px solid var(--line);
  padding: 18px 14px; flex-shrink: 0;
}
.sidebar h1 { font-size: 16px; margin: 0 0 4px; }
.sidebar .sub { color: var(--muted); font-size: 12px; margin-bottom: 18px; }
.sidebar nav a {
  display: block; padding: 9px 12px; border-radius: 8px; color: var(--text);
  margin-bottom: 3px; font-size: 14px;
}
.sidebar nav a:hover { background: var(--panel2); text-decoration: none; }
.sidebar nav a.active { background: var(--accent2); color: #04263a; font-weight: 600; }
.sidebar .foot { margin-top: 24px; font-size: 12px; color: var(--muted); }

.content { flex: 1; padding: 26px 32px; max-width: 1100px; }
h2 { margin: 0 0 18px; font-size: 22px; }
h3 { margin: 22px 0 10px; font-size: 17px; }

.card {
  background: var(--panel); border: 1px solid var(--line); border-radius: 12px;
  padding: 18px 20px; margin-bottom: 18px;
}
.grid { display: grid; gap: 16px; }
.grid.cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid.cols-4 { grid-template-columns: repeat(4, 1fr); }

.stat { text-align: center; }
.stat .num { font-size: 30px; font-weight: 700; color: var(--accent); }
.stat .lbl { color: var(--muted); font-size: 13px; margin-top: 4px; }

table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 9px 10px; border-bottom: 1px solid var(--line); font-size: 14px; }
th { color: var(--muted); font-weight: 600; font-size: 12px; text-transform: uppercase; letter-spacing: .03em; }
tr:hover td { background: var(--panel2); }

label { display: block; margin: 12px 0 4px; font-size: 13px; color: var(--muted); }
input, select, textarea {
  width: 100%; padding: 9px 11px; background: var(--panel2); color: var(--text);
  border: 1px solid var(--line); border-radius: 8px; font-size: 14px; font-family: inherit;
}
textarea { min-height: 90px; resize: vertical; font-family: ui-monospace, monospace; }
.row { display: flex; gap: 14px; }
.row > div { flex: 1; }
.check { display: flex; align-items: center; gap: 8px; }
.check input { width: auto; }
.check label { margin: 0; }

.btn {
  display: inline-block; padding: 9px 16px; border-radius: 8px; border: none;
  background: var(--accent2); color: #04263a; font-weight: 600; cursor: pointer;
  font-size: 14px; font-family: inherit;
}
.btn:hover { background: var(--accent); text-decoration: none; }
.btn.sec { background: var(--panel2); color: var(--text); border: 1px solid var(--line); }
.btn.danger { background: transparent; color: var(--err); border: 1px solid var(--err); }
.btn.sm { padding: 5px 10px; font-size: 13px; }

.pill { padding: 2px 9px; border-radius: 999px; font-size: 12px; font-weight: 600; }
.pill.ok { background: rgba(34,197,94,.15); color: var(--ok); }
.pill.err { background: rgba(239,68,68,.15); color: var(--err); }
.pill.warn { background: rgba(245,158,11,.15); color: var(--warn); }
.pill.muted { background: var(--panel2); color: var(--muted); }

.flash { padding: 12px 16px; border-radius: 8px; margin-bottom: 18px; font-size: 14px; }
.flash.ok { background: rgba(34,197,94,.12); border: 1px solid var(--ok); }
.flash.erro { background: rgba(239,68,68,.12); border: 1px solid var(--err); }

.dot { display: inline-block; width: 10px; height: 10px; border-radius: 50%; vertical-align: middle; }
.dot.on { background: var(--ok); box-shadow: 0 0 6px var(--ok); }
.dot.off { background: var(--err); box-shadow: 0 0 6px var(--err); }
.muted { color: var(--muted); }
.mono { font-family: ui-monospace, monospace; font-size: 13px; }
.bar { height: 10px; background: var(--panel2); border-radius: 999px; overflow: hidden; margin-top: 6px; }
.bar > span { display: block; height: 100%; background: linear-gradient(90deg, var(--ok), var(--warn)); }
.inline { display: inline; }
.right { text-align: right; }
.actions { display: flex; gap: 6px; flex-wrap: wrap; }
pre.log { background: #0b1120; border: 1px solid var(--line); border-radius: 8px; padding: 14px; overflow-x: auto; font-size: 12.5px; max-height: 400px; }

/* Cartões de modo (radio) */
.modecard {
  flex: 1; display: block; margin: 0; padding: 12px 14px; border: 1px solid var(--line);
  border-radius: 10px; cursor: pointer; background: var(--panel2); font-size: 13px;
}
.modecard:has(input:checked) { border-color: var(--accent); background: rgba(56,189,248,.10); }
.modecard input { width: auto; margin-right: 6px; }

/* Login */
.login-wrap { display: flex; align-items: center; justify-content: center; min-height: 100vh; }
.login-box { width: 340px; }