:root {
  --bg: #0f1420;
  --panel: #171e2e;
  --panel-2: #1e2740;
  --border: #2a3350;
  --text: #e6e9f2;
  --muted: #8b93a8;
  --accent: #4f8cff;
  --ok: #3ecf8e;
  --warn: #f2c94c;
  --alert: #f2994a;
  --crit: #eb5757;
  --safe-bottom: env(safe-area-inset-bottom, 0px);
  --safe-top: env(safe-area-inset-top, 0px);
  --tabbar-h: 58px;
}
* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  font-size: 16px;
  line-height: 1.45;
  overscroll-behavior-y: none;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
h1 { font-size: 22px; margin: 4px 0 16px; }

/* ---------- Top bar: desktop nav, mobile just shows brand + user ---------- */
.topbar {
  display: flex; align-items: center; justify-content: space-between; gap: 8px;
  padding: max(10px, var(--safe-top)) 12px 10px; background: var(--panel);
  border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 20;
}
.topbar .brand { font-weight: 700; font-size: 16px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; min-width: 0; }
.topbar nav { display: none; } /* desktop nav shown via media query below; mobile uses tab bar */
.topbar nav a { margin-right: 16px; color: var(--muted); font-size: 14px; padding: 8px 0; }
.topbar nav a.active, .topbar nav a:hover { color: var(--text); }
.topbar .user {
  color: var(--muted); font-size: 13px; display: flex; align-items: center; gap: 8px;
  flex-shrink: 0; white-space: nowrap;
}
.topbar .user .username { max-width: 90px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.topbar .user form { margin: 0; }

/* ---------- Bottom app tab bar (mobile only) ---------- */
.tabbar {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 30;
  display: flex; background: var(--panel); border-top: 1px solid var(--border);
  padding-bottom: var(--safe-bottom);
}
.tabbar a {
  flex: 1; display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 2px; padding: 8px 2px 6px; color: var(--muted); font-size: 10.5px; min-height: 52px;
  white-space: nowrap; overflow: hidden;
}
.tabbar a .icon { font-size: 19px; line-height: 1; }
.tabbar a.active { color: var(--accent); }

.container {
  padding: 16px; max-width: 1200px; margin: 0 auto;
  padding-bottom: calc(16px + var(--tabbar-h) + var(--safe-bottom));
}

.card {
  background: var(--panel); border: 1px solid var(--border); border-radius: 10px;
  padding: 16px; margin-bottom: 14px;
}
.card h2 { margin-top: 0; font-size: 13px; color: var(--muted); text-transform: uppercase; letter-spacing: .04em; }

.grid { display: grid; gap: 12px; }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
@media (max-width: 700px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-2 { grid-template-columns: 1fr; }
}

.stat { text-align: center; padding: 10px 6px; }
.stat .value { font-size: 24px; font-weight: 700; }
.stat .label { color: var(--muted); font-size: 11px; text-transform: uppercase; margin-top: 2px; }

.badge { display: inline-block; padding: 4px 12px; border-radius: 999px; font-size: 12px; font-weight: 600; }
.badge-ok { background: rgba(62,207,142,.15); color: var(--ok); }
.badge-warn { background: rgba(242,201,76,.15); color: var(--warn); }
.badge-alert { background: rgba(242,153,74,.15); color: var(--alert); }
.badge-crit { background: rgba(235,87,87,.15); color: var(--crit); }
.badge-muted { background: rgba(139,147,168,.15); color: var(--muted); }

/* Tables scroll horizontally on narrow screens rather than overflowing the page */
.table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; margin: 0 -16px; padding: 0 16px; }
table { width: 100%; border-collapse: collapse; min-width: 480px; }
th, td { text-align: left; padding: 10px; border-bottom: 1px solid var(--border); font-size: 13px; }
th { color: var(--muted); font-weight: 600; text-transform: uppercase; font-size: 11px; }
tr:hover td { background: var(--panel-2); }

form.inline { display: inline; }
label { display: block; margin-bottom: 6px; color: var(--muted); font-size: 13px; }
input[type=text], input[type=password], input[type=number], select, textarea {
  width: 100%; padding: 12px 12px; margin-bottom: 14px; background: var(--panel-2);
  border: 1px solid var(--border); border-radius: 8px; color: var(--text);
  font-size: 16px; /* >=16px prevents iOS auto-zoom on focus */
  min-height: 44px; /* touch target */
}
textarea { min-height: 72px; }
.field { margin-bottom: 4px; }
.checkbox-row { display: flex; align-items: center; gap: 10px; margin-bottom: 14px; min-height: 28px; }
.checkbox-row input { width: 20px; height: 20px; margin: 0; }

button, .btn {
  background: var(--accent); color: white; border: none; border-radius: 8px;
  padding: 12px 18px; font-size: 15px; cursor: pointer; font-weight: 600;
  min-height: 44px; touch-action: manipulation;
}
button:hover, .btn:hover { opacity: .9; text-decoration: none; }
button.secondary, .btn.secondary { background: var(--panel-2); border: 1px solid var(--border); color: var(--text); }
button.danger, .btn.danger { background: var(--crit); }
button:active { transform: scale(.98); }

.error-msg { background: rgba(235,87,87,.12); border: 1px solid var(--crit); color: var(--crit);
  padding: 12px 14px; border-radius: 8px; margin-bottom: 16px; }
.success-msg { background: rgba(62,207,142,.12); border: 1px solid var(--ok); color: var(--ok);
  padding: 12px 14px; border-radius: 8px; margin-bottom: 16px; }
.info-msg { background: rgba(79,140,255,.12); border: 1px solid var(--accent); color: var(--accent);
  padding: 12px 14px; border-radius: 8px; margin-bottom: 16px; }

.login-wrap { display: flex; align-items: center; justify-content: center; min-height: 100vh; padding: 16px; }
.login-box { width: 100%; max-width: 340px; padding: 28px 24px; }

.settings-nav { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 16px; overflow-x: auto; -webkit-overflow-scrolling: touch; }
.settings-nav a { padding: 8px 14px; border-radius: 8px; background: var(--panel); border: 1px solid var(--border);
  color: var(--muted); font-size: 13px; white-space: nowrap; }
.settings-nav a.active { color: var(--text); border-color: var(--accent); }

.muted { color: var(--muted); }
.mono { font-family: ui-monospace, Consolas, monospace; }
canvas { max-width: 100%; }
.timeline-item { border-left: 2px solid var(--border); padding: 6px 0 6px 14px; margin-left: 4px; }

/* ---------- Breakpoint: show desktop nav + hide bottom tab bar ---------- */
@media (min-width: 720px) {
  .topbar nav { display: block; }
  .tabbar { display: none; }
  .container { padding: 20px; padding-bottom: 20px; }
}
@media (max-width: 719px) {
  .topbar .brand { font-size: 15px; }
}
@media (max-width: 360px) {
  .brand-text { display: none; } /* very narrow phones: keep just the satellite icon */
  .topbar .user .username { max-width: 60px; }
}

.chart-wrap { position: relative; height: 220px; }
.chart-wrap canvas { height: 100% !important; }

/* ---------- Incident panel: color + icon + text, never color alone ---------- */
.incident-panel { border-width: 2px; }
.incident-panel h2 { margin-bottom: 10px; }
.incident-headline { font-size: 22px; font-weight: 700; margin-bottom: 10px; }
.incident-panel > div:not(.incident-headline):not(h2) { font-size: 14px; margin-bottom: 4px; color: var(--text); }
.incident-healthy { border-color: var(--ok); background: linear-gradient(180deg, rgba(62,207,142,.08), var(--panel)); }
.incident-healthy .incident-headline { color: var(--ok); }
.incident-warn { border-color: var(--alert); background: linear-gradient(180deg, rgba(242,153,74,.1), var(--panel)); }
.incident-warn .incident-headline { color: var(--alert); }
.incident-crit { border-color: var(--crit); background: linear-gradient(180deg, rgba(235,87,87,.12), var(--panel)); }
.incident-crit .incident-headline { color: var(--crit); animation: pulse-crit 2s ease-in-out infinite; }
@keyframes pulse-crit { 0%,100% { opacity: 1; } 50% { opacity: .7; } }