:root {
  --bg: #f4f6f8;
  --card: #ffffff;
  --text: #16202a;
  --muted: #5d6b79;
  --online: #1f9d55;
  --offline: #d64545;
  --unknown: #8a94a2;
  --border: #e3e8ee;
  --page-bg: linear-gradient(180deg, #eef3f8 0%, #f8fafc 100%);
  --input-bg: #ffffff;
  --chip-bg: #edf2f8;
}

body.theme-dark {
  --bg: #0f1520;
  --card: #172131;
  --text: #e6edf5;
  --muted: #9fb0c4;
  --border: #263548;
  --page-bg: linear-gradient(180deg, #0d141f 0%, #121a28 100%);
  --input-bg: #101925;
  --chip-bg: #1b2a3f;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  background: var(--page-bg);
  color: var(--text);
}
.page { width: 100%; margin: 0; padding: 10px; }
.topbar { display: flex; justify-content: space-between; gap: 16px; align-items: end; }
.topbar h1 { margin: 0; }
.topbar p { margin: 6px 0 0; color: var(--muted); }
.brand {
  min-height: 64px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.brand-logo {
  display: block;
  max-height: 64px;
  width: auto;
  max-width: min(520px, 60vw);
  object-fit: contain;
}
.beta-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 2px 8px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: #f59f00;
  color: #ffffff;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.4px;
}
.controls { display: flex; align-items: end; gap: 10px; }
.user-chip {
  display: inline-flex;
  gap: 6px;
  align-items: center;
  background: var(--chip-bg);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 7px 10px;
  font-size: 12px;
}
.user-chip small { color: var(--muted); }
.controls label { display: grid; gap: 4px; font-size: 12px; color: var(--muted); }
.controls input, .filters input, .filters select {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px 10px;
  background: var(--input-bg);
  color: var(--text);
}
button {
  border: 0;
  background: #0c6efc;
  color: #fff;
  border-radius: 8px;
  padding: 10px 14px;
  cursor: pointer;
}
button:disabled { opacity: 0.7; cursor: not-allowed; }
.btn-secondary { background: #677281; }
.btn-danger { background: #d64545; }
.btn-sm { padding: 6px 10px; font-size: 12px; }
.theme-toggle {
  background: var(--card);
  color: var(--text);
  border: 1px solid var(--border);
  width: 40px;
  height: 40px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  padding: 0;
}
.kpis { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: 12px; margin: 16px 0; }
.kpi {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 14px;
}
.kpi span { display: block; font-size: 13px; color: var(--muted); }
.kpi strong { display: block; margin-top: 8px; font-size: 30px; }
.kpi-online strong { color: var(--online); }
.kpi-offline strong { color: var(--offline); }
.kpi-unknown strong { color: var(--unknown); }
.kpi-warning strong { color: #f59f00; }
.kpi-cert-ok strong { color: var(--online); }
.kpi-cert-problem strong { color: var(--offline); }
.kpi-cert-unknown strong { color: var(--unknown); }
.charts { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 14px;
}
.card h2 { margin: 0 0 8px; font-size: 17px; }
.chart { height: 320px; }
.table-card { margin-top: 12px; }
.table-toolbar { display: flex; justify-content: space-between; align-items: center; gap: 12px; }
.filters { display: flex; gap: 8px; }
.table-wrapper { overflow: auto; margin-top: 10px; }
table { width: 100%; border-collapse: collapse; min-width: 900px; }
th, td { border-bottom: 1px solid var(--border); text-align: left; padding: 10px 8px; font-size: 14px; }
th { color: var(--muted); font-weight: 600; }
a { color: #0b63e6; text-decoration: none; }
a:hover { text-decoration: underline; }
.badge { padding: 4px 8px; border-radius: 999px; font-size: 12px; font-weight: 700; }
.badge-online { color: #fff; background: var(--online); }
.badge-offline { color: #fff; background: var(--offline); }
.badge-unknown { color: #fff; background: var(--unknown); }
.badge-warning { color: #fff; background: #f59f00; }
.error { color: var(--offline); }
.muted { color: var(--muted); }
.footer { margin: 12px 2px 0; font-size: 12px; }
.small { font-size: 12px; }
.login-wrap {
  min-height: calc(100vh - 48px);
  display: grid;
  place-items: center;
}
.login-card {
  width: 100%;
  max-width: 420px;
}
.login-card h1 { margin-top: 0; }
.login-card form {
  display: grid;
  gap: 10px;
  margin-top: 12px;
}
.login-card label {
  display: grid;
  gap: 4px;
  font-size: 13px;
  color: var(--muted);
}
.login-card input {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px 10px;
  background: var(--input-bg);
  color: var(--text);
}
.admin-grid {
  margin-top: 10px;
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 12px;
}
.admin-form {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px;
  display: grid;
  gap: 10px;
  align-content: start;
}
.admin-form label {
  display: grid;
  gap: 4px;
  font-size: 13px;
  color: var(--muted);
}
.admin-form input[type="email"],
.admin-form input[type="password"],
.admin-form input[type="text"],
.admin-form input:not([type]) {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px 10px;
  background: var(--input-bg);
  color: var(--text);
}
.inline-check {
  display: flex !important;
  align-items: center;
  gap: 8px;
  color: var(--text) !important;
}
.admin-actions {
  display: flex;
  gap: 8px;
}
.actions-cell {
  display: flex;
  gap: 6px;
}

@media (max-width: 980px) {
  .topbar { flex-direction: column; align-items: start; }
  .brand-logo {
    max-height: 50px;
    max-width: 90vw;
  }
  .kpis { grid-template-columns: repeat(2, 1fr); }
  .charts { grid-template-columns: 1fr; }
  .filters { width: 100%; }
  .filters input, .filters select { width: 100%; }
  .admin-grid { grid-template-columns: 1fr; }
}