:root {
  --page: #f6f7f9;
  --surface: #ffffff;
  --ink: #14171c;
  --ink-2: #4b5260;
  --muted: #7b8290;
  --line: #e3e6ea;
  --accent: #1f5fbf;
  --accent-ink: #ffffff;
  --danger: #b3261e;
  --ok: #0b6b2e;
  /* Chart series, fixed by meaning: validated for colour-blind separation in this stacking order. */
  --incoming: #2a78d6;
  --outgoing: #1baf7a;
  --missed: #eb6834;
  --radius: 10px;
}
* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  background: var(--page);
  color: var(--ink);
  font: 15px/1.45 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
h1 { font-size: 22px; margin: 0 0 4px; }
h2 { font-size: 18px; margin: 0; }
h3 { font-size: 15px; margin: 0 0 12px; }
.muted { color: var(--muted); }
.error { color: var(--danger); margin: 0; }
[hidden] { display: none !important; }

button, select, input {
  font: inherit;
  color: inherit;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  padding: 8px 12px;
  min-height: 38px;
}
button { cursor: pointer; }
button:hover { border-color: #c5cad2; }
button.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); font-weight: 600; }
button.link { border: 0; background: none; color: var(--accent); padding: 4px 6px; min-height: 0; }
button.danger { color: var(--danger); }
button:disabled { opacity: .5; cursor: default; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
label { display: grid; gap: 4px; font-size: 13px; color: var(--ink-2); }
label.inline { display: flex; align-items: center; gap: 8px; }
input[type="checkbox"] { min-height: 0; width: 18px; height: 18px; padding: 0; }

.card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; }

.login { min-height: 100vh; display: grid; place-items: center; padding: 16px; }
.login-card { width: min(400px, 100%); display: grid; gap: 14px; }
.switch { margin: 0; text-align: center; font-size: 14px; }
/* Catalyst draws its sign-in form inside an iframe here; it needs room for the sign-up form too. */
.catalyst-login { min-height: 430px; }
.catalyst-login iframe { width: 100%; min-height: 430px; border: 0; }
.section-title { display: flex; align-items: center; gap: 8px; }

.topbar {
  display: flex; flex-wrap: wrap; align-items: center; gap: 10px 20px;
  background: var(--surface); border-bottom: 1px solid var(--line); padding: 10px 20px;
}
.brand { font-size: 16px; }
#nav { display: flex; flex-wrap: wrap; gap: 4px; }
#nav button { border-color: transparent; background: none; color: var(--ink-2); }
#nav button[aria-current="page"] { background: #e8effa; color: var(--accent); font-weight: 600; }
.topbar-right { margin-left: auto; display: flex; flex-wrap: wrap; align-items: center; gap: 12px; }

.view { max-width: 1200px; margin: 0 auto; padding: 20px 16px 60px; display: grid; gap: 16px; }
.view-head { display: flex; flex-wrap: wrap; align-items: end; justify-content: space-between; gap: 12px; }
.filters { display: flex; flex-wrap: wrap; align-items: end; gap: 10px; }
.filters input[type="search"] { width: 220px; }

.tiles { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 12px; }
.tile .value { font-size: 28px; font-weight: 700; line-height: 1.15; }
.tile .label { color: var(--ink-2); font-size: 13px; display: flex; align-items: center; gap: 6px; }
.swatch { width: 10px; height: 10px; border-radius: 3px; flex: none; }

.legend { display: flex; flex-wrap: wrap; gap: 14px; font-size: 13px; color: var(--ink-2); margin-bottom: 8px; }
.legend span { display: inline-flex; align-items: center; gap: 6px; }
.chart svg { display: block; width: 100%; height: auto; overflow: visible; }
.chart text { fill: var(--muted); font-size: 11px; }
.chart .grid { stroke: var(--line); stroke-width: 1; }
.chart .day:hover .hit, .chart .day:focus .hit { fill: rgba(20, 23, 28, .05); }
.chart .day:focus { outline: none; }

.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { text-align: left; padding: 9px 10px; border-bottom: 1px solid var(--line); vertical-align: middle; white-space: nowrap; }
th { font-size: 12px; font-weight: 600; color: var(--ink-2); text-transform: uppercase; letter-spacing: .03em; }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; }
td.wrap { white-space: normal; }
tbody tr:hover { background: #fafbfc; }
.empty { padding: 28px 10px; text-align: center; color: var(--muted); }

.badge { display: inline-flex; align-items: center; gap: 5px; padding: 2px 8px; border-radius: 999px; font-size: 12px; background: #eef0f3; color: var(--ink-2); }
.badge.ok { background: #e4f3e9; color: var(--ok); }
.badge.off { background: #fbe9e7; color: var(--danger); }
.type { display: inline-flex; align-items: center; gap: 6px; }
.bar-row { display: grid; grid-template-columns: minmax(120px, 1.2fr) 3fr 130px; gap: 10px; align-items: center; padding: 6px 0; font-size: 14px; }
.bar-value { text-align: right; font-variant-numeric: tabular-nums; }
.bar-track { height: 8px; background: #eef0f3; border-radius: 4px; overflow: hidden; }
.bar-fill { height: 100%; background: var(--incoming); border-radius: 4px; }

.pager { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
audio { height: 34px; max-width: 260px; vertical-align: middle; }

.tooltip {
  position: fixed; z-index: 20; pointer-events: none;
  background: var(--ink); color: #fff; border-radius: 8px; padding: 8px 10px; font-size: 12.5px; line-height: 1.5;
  box-shadow: 0 4px 14px rgba(0, 0, 0, .18);
}
.tooltip b { display: block; margin-bottom: 2px; }
.tooltip span { display: flex; align-items: center; gap: 6px; }

dialog { border: 1px solid var(--line); border-radius: var(--radius); padding: 0; width: min(440px, calc(100vw - 32px)); }
dialog::backdrop { background: rgba(20, 23, 28, .4); }
#dialog-body { padding: 20px; display: grid; gap: 14px; }
.form { display: grid; gap: 12px; }
.actions { display: flex; justify-content: flex-end; gap: 8px; }
.code { font: 700 28px/1 ui-monospace, Menlo, monospace; letter-spacing: 4px; text-align: center; padding: 16px; background: #f1f4f8; border-radius: 8px; user-select: all; }

@media (max-width: 640px) {
  .topbar-right { margin-left: 0; width: 100%; }
  .filters input[type="search"] { width: 100%; }
}