/* Logipex Zeroth — palette:
   #021f4d page background (deepest navy)
   #003e80 panels / surfaces
   #007cbf interactive accents, links, secondary buttons
   #ff6200 primary call-to-action, highlights
   #ffffff text                                            */
:root {
  --bg: #021f4d;
  --panel: #003e80;
  --panel-edge: #0a4d99;      /* derived: panel border/hover */
  --accent: #007cbf;
  --accent-hover: #0993dd;    /* derived */
  --cta: #ff6200;
  --cta-hover: #ff7d2e;       /* derived */
  --text: #ffffff;
  --muted: rgba(255, 255, 255, 0.65);
  --faint: rgba(255, 255, 255, 0.12);
  --danger: #d9366b;          /* derived: destructive actions */
}

* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  background: var(--bg);
  color: var(--text);
  font: 15px/1.55 system-ui, -apple-system, "Segoe UI", sans-serif;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
a { color: var(--accent-hover); }
code { background: rgba(0, 0, 0, 0.3); padding: 2px 6px; border-radius: 4px; font-size: 0.92em; }
.big-code { font-size: 1.3em; padding: 6px 12px; }

/* top bar */
.topbar {
  display: flex; align-items: center; gap: 28px;
  background: var(--panel);
  border-bottom: 2px solid var(--accent);
  padding: 0 24px; height: 56px;
}
.brand { font-size: 18px; letter-spacing: 0.02em; white-space: nowrap; }
.brand strong { color: var(--cta); }
.brand-mark { color: var(--cta); margin-right: 2px; }
.brand-big { font-size: 26px; }
.topbar nav { display: flex; gap: 4px; flex: 1; }
.topbar nav a {
  color: var(--text); text-decoration: none; padding: 6px 14px; border-radius: 6px;
}
.topbar nav a:hover { background: var(--panel-edge); }
.topbar nav a.active { background: var(--accent); }
.topbar-right { display: flex; align-items: center; gap: 12px; }
.user-email { color: var(--muted); font-size: 13px; }

.impersonation-banner {
  display: flex; align-items: center; justify-content: center; gap: 16px;
  background: var(--cta); color: #fff; padding: 8px 16px; font-size: 14px;
}
.impersonation-banner .btn { background: rgba(0,0,0,0.25); }

/* layout */
.container { flex: 1; width: 100%; max-width: 1080px; margin: 0 auto; padding: 28px 24px 48px; }
.footer { text-align: center; color: var(--muted); font-size: 12px; padding: 18px; }
.page-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 20px; gap: 16px; flex-wrap: wrap; }
h1 { font-size: 24px; font-weight: 650; }
h2 { font-size: 17px; margin-bottom: 10px; }
h3 { font-size: 15px; margin: 16px 0 8px; }

.panel {
  background: var(--panel);
  border: 1px solid var(--panel-edge);
  border-radius: 10px;
  padding: 20px 22px;
  margin-bottom: 20px;
}
.panel.narrow { max-width: 460px; }
.panel.highlight { border: 2px solid var(--cta); }
.muted { color: var(--muted); }
.muted code { color: var(--text); }

/* forms */
label { display: block; margin: 10px 0; font-size: 13px; color: var(--muted); }
input, select {
  display: block; width: 100%; margin-top: 4px; padding: 9px 11px;
  background: var(--bg); color: var(--text);
  border: 1px solid var(--panel-edge); border-radius: 6px; font: inherit;
}
input:focus, select:focus { outline: 2px solid var(--accent); border-color: var(--accent); }
.inline-form { display: flex; gap: 14px; align-items: flex-end; flex-wrap: wrap; margin-bottom: 8px; }
.inline-form label { flex: 0 1 240px; margin: 0; }
.inline-form .btn { margin-bottom: 1px; }

.btn {
  display: inline-block; border: 0; cursor: pointer; text-decoration: none;
  background: var(--accent); color: #fff; font: inherit; font-weight: 550;
  padding: 9px 18px; border-radius: 6px;
}
.btn:hover { background: var(--accent-hover); }
.btn-primary { background: var(--cta); }
.btn-primary:hover { background: var(--cta-hover); }
.btn-danger { background: var(--danger); }
.btn-danger:hover { filter: brightness(1.15); }
.btn-small { padding: 5px 12px; font-size: 13px; }
.btn-block { width: 100%; margin-top: 14px; }
.btn-ghost { background: transparent; border: 1px solid var(--panel-edge); }
.btn-ghost:hover { background: var(--panel-edge); }

/* alerts */
.alert { padding: 11px 16px; border-radius: 8px; margin-bottom: 18px; font-size: 14px; }
.alert-ok { background: rgba(0, 124, 191, 0.25); border: 1px solid var(--accent); }
.alert-err { background: rgba(217, 54, 107, 0.18); border: 1px solid var(--danger); }

/* tables */
.table { width: 100%; border-collapse: collapse; margin-top: 6px; }
.table th, .table td { text-align: left; padding: 9px 12px; border-bottom: 1px solid var(--faint); }
.table th { color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: 0.06em; }
.table tr:last-child td { border-bottom: 0; }
.row-actions { display: flex; gap: 8px; }
.kv { border-collapse: collapse; margin: 8px 0; }
.kv th { text-align: left; color: var(--muted); font-weight: 500; padding: 5px 18px 5px 0; white-space: nowrap; vertical-align: top; }
.kv td { padding: 5px 0; }
.tag {
  background: var(--accent); border-radius: 999px; padding: 2px 10px;
  font-size: 12px; text-transform: capitalize;
}

/* sensors */
.sensor-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(210px, 1fr));
  gap: 14px; margin-bottom: 20px;
}
.sensor-card {
  background: var(--panel); border: 1px solid var(--panel-edge);
  border-radius: 10px; padding: 16px 18px; cursor: pointer;
  transition: border-color 0.12s;
}
.sensor-card:hover { border-color: var(--accent); }
.sensor-card.selected { border: 2px solid var(--cta); padding: 15px 17px; }
.sensor-name { font-size: 13px; color: var(--muted); }
.sensor-temp { font-size: 30px; font-weight: 650; margin: 4px 0; color: var(--cta); }
.sensor-seen { font-size: 12px; }

/* chart */
.chart-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 12px; flex-wrap: wrap; gap: 10px; }
.range-btns { display: flex; gap: 6px; }
.range-btns .btn.active { background: var(--cta); }
#chart { width: 100%; }

/* login */
.login-body { justify-content: center; align-items: center; }
.login-card {
  background: var(--panel); border: 1px solid var(--panel-edge);
  border-radius: 12px; padding: 34px 36px; width: 380px; max-width: 92vw;
}
.login-card .muted { margin: 4px 0 18px; }

.one-time-link { word-break: break-all; }
.cred-box { margin-bottom: 14px; }
.raw-table td code { word-break: break-all; }
.nowrap { white-space: nowrap; }
.advanced { margin: 12px 0; }
.advanced summary { cursor: pointer; }
.check-label { display: flex; gap: 8px; align-items: center; }
.check-label input { width: auto; margin: 0; }
.tag-alert { background: var(--cta); }
.btn-row { display: flex; gap: 10px; margin-top: 14px; }
.threshold-input { width: 110px; }
#chart-range { font-size: 12px; margin-top: 2px; }

@media (max-width: 640px) {
  .topbar { gap: 10px; padding: 0 12px; overflow-x: auto; }
  .user-email { display: none; }
  .container { padding: 18px 12px 40px; }
}