:root {
  --bg: #0f1220;
  --panel: #171a2b;
  --panel-2: #1e2236;
  --border: #2a2f4a;
  --text: #e7e9f0;
  --muted: #9aa0bd;
  --primary: #4f7cff;
  --primary-2: #3a63db;
  --ok: #2ecc71;
  --err: #ff5d6c;
  --warn: #f5a623;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  overflow-x: hidden;
}
.hidden { display: none !important; }
.muted { color: var(--muted); font-size: 0.9rem; }

/* AUTH */
.auth { min-height: 100vh; display: grid; place-items: center; padding: 24px; }
.auth-card {
  width: 100%; max-width: 400px; background: var(--panel);
  border: 1px solid var(--border); border-radius: 14px; padding: 28px;
}
.auth-card h1 { margin: 0 0 4px; font-size: 1.4rem; }
.auth-foot { margin: 16px 0 0; font-size: 0.82rem; }
.auth-foot a { color: var(--primary); text-decoration: none; }
.auth-foot a:hover { text-decoration: underline; }
.tabs { display: flex; gap: 6px; margin: 18px 0 14px; }
.tab {
  flex: 1; padding: 8px; background: var(--panel-2); color: var(--muted);
  border: 1px solid var(--border); border-radius: 8px; cursor: pointer;
}
.tab.active { color: var(--text); border-color: var(--primary); }

/* FORMS */
.form { display: flex; flex-direction: column; gap: 12px; }
.form label { display: flex; flex-direction: column; gap: 5px; font-size: 0.85rem; color: var(--muted); }
.form input, .form select {
  padding: 10px; background: var(--panel-2); color: var(--text);
  border: 1px solid var(--border); border-radius: 8px; font-size: 0.95rem;
}
.form input:focus, .form select:focus { outline: none; border-color: var(--primary); }

.btn {
  padding: 10px 16px; border-radius: 8px; border: 1px solid var(--border);
  background: var(--panel-2); color: var(--text); cursor: pointer; font-size: 0.9rem;
}
.btn.primary { background: var(--primary); border-color: var(--primary); color: #fff; }
.btn.primary:hover { background: var(--primary-2); }
.btn.ghost { background: transparent; }
.btn.small { padding: 6px 10px; font-size: 0.8rem; }
.btn.danger { color: var(--err); border-color: var(--err); }

.error { color: var(--err); min-height: 1em; font-size: 0.85rem; margin: 10px 0 0; }
.msg { min-height: 1em; font-size: 0.85rem; }
.msg.ok { color: var(--ok); }
.msg.err { color: var(--err); }

/* DASHBOARD */
.topbar {
  display: flex; justify-content: space-between; align-items: center;
  padding: 14px 24px; background: var(--panel); border-bottom: 1px solid var(--border);
}
.topbar-right { display: flex; align-items: center; gap: 14px; }
.container { max-width: 980px; margin: 0 auto; padding: 24px; }
.container section { margin-bottom: 36px; }
.container h2 { font-size: 1.1rem; margin: 0 0 4px; }

.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 14px; margin-top: 14px; }
.card {
  background: var(--panel); border: 1px solid var(--border); border-radius: 12px;
  padding: 16px; display: flex; flex-direction: column; gap: 10px;
}
.card .name { font-weight: 600; }
.card .badge { font-size: 0.72rem; color: var(--muted); }

.list { display: flex; flex-direction: column; gap: 10px; margin-top: 10px; }
.row {
  display: flex; align-items: center; gap: 12px; padding: 12px 16px;
  background: var(--panel); border: 1px solid var(--border); border-radius: 10px;
}
.row .grow { flex: 1; }
.row .sub { font-size: 0.8rem; color: var(--muted); }
.dot { width: 8px; height: 8px; border-radius: 50%; display: inline-block; margin-right: 6px; }
.dot.on { background: var(--ok); }
.dot.off { background: var(--muted); }

/* TORRE DE CONTROLO */
.kpis { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 12px; margin: 14px 0 22px; }
.kpi { background: var(--panel); border: 1px solid var(--border); border-radius: 12px; padding: 14px 16px; }
.kpi-value { font-size: 1.5rem; font-weight: 700; }
.kpi-label { font-size: 0.78rem; color: var(--muted); margin-top: 2px; }
.kpi-sub { font-size: 0.7rem; color: var(--muted); opacity: .8; margin-top: 4px; }

.panels { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 14px; }
.panel { background: var(--panel); border: 1px solid var(--border); border-radius: 12px; padding: 16px; }
.panel h3 { margin: 0 0 12px; font-size: 0.92rem; }

.bars { display: flex; flex-direction: column; gap: 8px; }
.bar-row { display: flex; align-items: center; gap: 10px; font-size: 0.82rem; }
.bar-label { width: 80px; color: var(--muted); text-transform: capitalize; }
.bar-track { flex: 1; height: 10px; background: var(--panel-2); border-radius: 6px; overflow: hidden; }
.bar-fill { display: block; height: 100%; border-radius: 6px; }
.bar-val { width: 28px; text-align: right; }

.feed { display: flex; flex-direction: column; gap: 8px; }
.feed-row { display: flex; align-items: center; gap: 8px; font-size: 0.8rem; }
.feed-row .sub { color: var(--muted); font-size: 0.74rem; }

.health { display: flex; flex-direction: column; gap: 8px; }
.health-row { display: flex; align-items: center; gap: 8px; font-size: 0.82rem; }
.tag { font-size: 0.68rem; color: var(--muted); border: 1px solid var(--border); border-radius: 5px; padding: 1px 6px; }

/* MODAL */
.modal { position: fixed; inset: 0; background: rgba(0,0,0,.55); display: grid; place-items: center; padding: 20px; }
.modal-card {
  width: 100%; max-width: 460px; background: var(--panel);
  border: 1px solid var(--border); border-radius: 14px; padding: 24px; max-height: 90vh; overflow: auto;
}
.modal-card h3 { margin: 0 0 16px; }
.modal-actions { display: flex; justify-content: flex-end; gap: 10px; margin-top: 18px; }
.field-hint { font-size: 0.72rem; color: var(--muted); }